/*!
 * jQuery JavaScript Library v1.12.4
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2016-05-20T17:17Z
 */


(function( global, factory ) {

	if ( typeof module === "object" && typeof module.exports === "object" ) {
		// For CommonJS and CommonJS-like environments where a proper `window`
		// is present, execute the factory and get jQuery.
		// For environments that do not have a `window` with a `document`
		// (such as Node.js), expose a factory as module.exports.
		// This accentuates the need for the creation of a real `window`.
		// e.g. var jQuery = require("jquery")(window);
		// See ticket #14549 for more info.
		module.exports = global.document ?
			factory( global, true ) :
			function( w ) {
				if ( !w.document ) {
					throw new Error( "jQuery requires a window with a document" );
				}
				return factory( w );
			};
	} else {
		factory( global );
	}

// Pass this if window is not defined yet
}(typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Support: Firefox 18+
// Can't be in strict mode, several libs including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
//"use strict";
var deletedIds = [];

var document = window.document;

var slice = deletedIds.slice;

var concat = deletedIds.concat;

var push = deletedIds.push;

var indexOf = deletedIds.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var support = {};



var
	version = "1.12.4",

	// Define a local copy of jQuery
	jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'
		// Need init if jQuery is called (just allow error to be thrown if not included)
		return new jQuery.fn.init( selector, context );
	},

	// Support: Android<4.1, IE<9
	// Make sure we trim BOM and NBSP
	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

	// Matches dashed string for camelizing
	rmsPrefix = /^-ms-/,
	rdashAlpha = /-([\da-z])/gi,

	// Used by jQuery.camelCase as callback to replace()
	fcamelCase = function( all, letter ) {
		return letter.toUpperCase();
	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used
	jquery: version,

	constructor: jQuery,

	// Start with an empty selector
	selector: "",

	// The default length of a jQuery object is 0
	length: 0,

	toArray: function() {
		return slice.call( this );
	},

	// Get the Nth element in the matched element set OR
	// Get the whole matched element set as a clean array
	get: function( num ) {
		return num != null ?

			// Return just the one element from the set
			( num < 0 ? this[ num + this.length ] : this[ num ] ) :

			// Return all the elements in a clean array
			slice.call( this );
	},

	// Take an array of elements and push it onto the stack
	// (returning the new matched element set)
	pushStack: function( elems ) {

		// Build a new jQuery matched element set
		var ret = jQuery.merge( this.constructor(), elems );

		// Add the old object onto the stack (as a reference)
		ret.prevObject = this;
		ret.context = this.context;

		// Return the newly-formed element set
		return ret;
	},

	// Execute a callback for every element in the matched set.
	each: function( callback ) {
		return jQuery.each( this, callback );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map( this, function( elem, i ) {
			return callback.call( elem, i, elem );
		} ) );
	},

	slice: function() {
		return this.pushStack( slice.apply( this, arguments ) );
	},

	first: function() {
		return this.eq( 0 );
	},

	last: function() {
		return this.eq( -1 );
	},

	eq: function( i ) {
		var len = this.length,
			j = +i + ( i < 0 ? len : 0 );
		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
	},

	end: function() {
		return this.prevObject || this.constructor();
	},

	// For internal use only.
	// Behaves like an Array's method, not like a jQuery method.
	push: push,
	sort: deletedIds.sort,
	splice: deletedIds.splice
};

jQuery.extend = jQuery.fn.extend = function() {
	var src, copyIsArray, copy, name, options, clone,
		target = arguments[ 0 ] || {},
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;

		// skip the boolean and the target
		target = arguments[ i ] || {};
		i++;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
		target = {};
	}

	// extend jQuery itself if only one argument is passed
	if ( i === length ) {
		target = this;
		i--;
	}

	for ( ; i < length; i++ ) {

		// Only deal with non-null/undefined values
		if ( ( options = arguments[ i ] ) != null ) {

			// Extend the base object
			for ( name in options ) {
				src = target[ name ];
				copy = options[ name ];

				// Prevent never-ending loop
				if ( target === copy ) {
					continue;
				}

				// Recurse if we're merging plain objects or arrays
				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
					( copyIsArray = jQuery.isArray( copy ) ) ) ) {

					if ( copyIsArray ) {
						copyIsArray = false;
						clone = src && jQuery.isArray( src ) ? src : [];

					} else {
						clone = src && jQuery.isPlainObject( src ) ? src : {};
					}

					// Never move original objects, clone them
					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values
				} else if ( copy !== undefined ) {
					target[ name ] = copy;
				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	// See test/unit/core.js for details concerning isFunction.
	// Since version 1.3, DOM methods and functions like alert
	// aren't supported. They return false on IE (#2968).
	isFunction: function( obj ) {
		return jQuery.type( obj ) === "function";
	},

	isArray: Array.isArray || function( obj ) {
		return jQuery.type( obj ) === "array";
	},

	isWindow: function( obj ) {
		/* jshint eqeqeq: false */
		return obj != null && obj == obj.window;
	},

	isNumeric: function( obj ) {

		// parseFloat NaNs numeric-cast false positives (null|true|false|"")
		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
		// subtraction forces infinities to NaN
		// adding 1 corrects loss of precision from parseFloat (#15100)
		var realStringObj = obj && obj.toString();
		return !jQuery.isArray( obj ) && ( realStringObj - parseFloat( realStringObj ) + 1 ) >= 0;
	},

	isEmptyObject: function( obj ) {
		var name;
		for ( name in obj ) {
			return false;
		}
		return true;
	},

	isPlainObject: function( obj ) {
		var key;

		// Must be an Object.
		// Because of IE, we also have to check the presence of the constructor property.
		// Make sure that DOM nodes and window objects don't pass through, as well
		if ( !obj || jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
			return false;
		}

		try {

			// Not own constructor property must be Object
			if ( obj.constructor &&
				!hasOwn.call( obj, "constructor" ) &&
				!hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
				return false;
			}
		} catch ( e ) {

			// IE8,9 Will throw exceptions on certain host objects #9897
			return false;
		}

		// Support: IE<9
		// Handle iteration over inherited properties before own properties.
		if ( !support.ownFirst ) {
			for ( key in obj ) {
				return hasOwn.call( obj, key );
			}
		}

		// Own properties are enumerated firstly, so to speed up,
		// if last one is own, then all properties are own.
		for ( key in obj ) {}

		return key === undefined || hasOwn.call( obj, key );
	},

	type: function( obj ) {
		if ( obj == null ) {
			return obj + "";
		}
		return typeof obj === "object" || typeof obj === "function" ?
			class2type[ toString.call( obj ) ] || "object" :
			typeof obj;
	},

	// Workarounds based on findings by Jim Driscoll
	// http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
	globalEval: function( data ) {
		if ( data && jQuery.trim( data ) ) {

			// We use execScript on Internet Explorer
			// We use an anonymous function so that context is window
			// rather than jQuery in Firefox
			( window.execScript || function( data ) {
				window[ "eval" ].call( window, data ); // jscs:ignore requireDotNotation
			} )( data );
		}
	},

	// Convert dashed to camelCase; used by the css and data modules
	// Microsoft forgot to hump their vendor prefix (#9572)
	camelCase: function( string ) {
		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
	},

	nodeName: function( elem, name ) {
		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
	},

	each: function( obj, callback ) {
		var length, i = 0;

		if ( isArrayLike( obj ) ) {
			length = obj.length;
			for ( ; i < length; i++ ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		} else {
			for ( i in obj ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		}

		return obj;
	},

	// Support: Android<4.1, IE<9
	trim: function( text ) {
		return text == null ?
			"" :
			( text + "" ).replace( rtrim, "" );
	},

	// results is for internal usage only
	makeArray: function( arr, results ) {
		var ret = results || [];

		if ( arr != null ) {
			if ( isArrayLike( Object( arr ) ) ) {
				jQuery.merge( ret,
					typeof arr === "string" ?
					[ arr ] : arr
				);
			} else {
				push.call( ret, arr );
			}
		}

		return ret;
	},

	inArray: function( elem, arr, i ) {
		var len;

		if ( arr ) {
			if ( indexOf ) {
				return indexOf.call( arr, elem, i );
			}

			len = arr.length;
			i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;

			for ( ; i < len; i++ ) {

				// Skip accessing in sparse arrays
				if ( i in arr && arr[ i ] === elem ) {
					return i;
				}
			}
		}

		return -1;
	},

	merge: function( first, second ) {
		var len = +second.length,
			j = 0,
			i = first.length;

		while ( j < len ) {
			first[ i++ ] = second[ j++ ];
		}

		// Support: IE<9
		// Workaround casting of .length to NaN on otherwise arraylike objects (e.g., NodeLists)
		if ( len !== len ) {
			while ( second[ j ] !== undefined ) {
				first[ i++ ] = second[ j++ ];
			}
		}

		first.length = i;

		return first;
	},

	grep: function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
	},

	// arg is for internal usage only
	map: function( elems, callback, arg ) {
		var length, value,
			i = 0,
			ret = [];

		// Go through the array, translating each of the items to their new values
		if ( isArrayLike( elems ) ) {
			length = elems.length;
			for ( ; i < length; i++ ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}

		// Go through every key on the object,
		} else {
			for ( i in elems ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}
		}

		// Flatten any nested arrays
		return concat.apply( [], ret );
	},

	// A global GUID counter for objects
	guid: 1,

	// Bind a function to a context, optionally partially applying any
	// arguments.
	proxy: function( fn, context ) {
		var args, proxy, tmp;

		if ( typeof context === "string" ) {
			tmp = fn[ context ];
			context = fn;
			fn = tmp;
		}

		// Quick check to determine if target is callable, in the spec
		// this throws a TypeError, but we will just return undefined.
		if ( !jQuery.isFunction( fn ) ) {
			return undefined;
		}

		// Simulated bind
		args = slice.call( arguments, 2 );
		proxy = function() {
			return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
		};

		// Set the guid of unique handler to the same of original handler, so it can be removed
		proxy.guid = fn.guid = fn.guid || jQuery.guid++;

		return proxy;
	},

	now: function() {
		return +( new Date() );
	},

	// jQuery.support is not used in Core but other projects attach their
	// properties to it so it needs to exist.
	support: support
} );

// JSHint would error on this code due to the Symbol not being defined in ES5.
// Defining this global in .jshintrc would create a danger of using the global
// unguarded in another place, it seems safer to just disable JSHint for these
// three lines.
/* jshint ignore: start */
if ( typeof Symbol === "function" ) {
	jQuery.fn[ Symbol.iterator ] = deletedIds[ Symbol.iterator ];
}
/* jshint ignore: end */

// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
function( i, name ) {
	class2type[ "[object " + name + "]" ] = name.toLowerCase();
} );

function isArrayLike( obj ) {

	// Support: iOS 8.2 (not reproducible in simulator)
	// `in` check used to prevent JIT error (gh-2145)
	// hasOwn isn't used here due to false negatives
	// regarding Nodelist length in IE
	var length = !!obj && "length" in obj && obj.length,
		type = jQuery.type( obj );

	if ( type === "function" || jQuery.isWindow( obj ) ) {
		return false;
	}

	return type === "array" || length === 0 ||
		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
 * Sizzle CSS Selector Engine v2.2.1
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2015-10-17
 */
(function( window ) {

var i,
	support,
	Expr,
	getText,
	isXML,
	tokenize,
	compile,
	select,
	outermostContext,
	sortInput,
	hasDuplicate,

	// Local document vars
	setDocument,
	document,
	docElem,
	documentIsHTML,
	rbuggyQSA,
	rbuggyMatches,
	matches,
	contains,

	// Instance-specific data
	expando = "sizzle" + 1 * new Date(),
	preferredDoc = window.document,
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	tokenCache = createCache(),
	compilerCache = createCache(),
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
		}
		return 0;
	},

	// General-purpose constants
	MAX_NEGATIVE = 1 << 31,

	// Instance methods
	hasOwn = ({}).hasOwnProperty,
	arr = [],
	pop = arr.pop,
	push_native = arr.push,
	push = arr.push,
	slice = arr.slice,
	// Use a stripped-down indexOf as it's faster than native
	// http://jsperf.com/thor-indexof-vs-for/5
	indexOf = function( list, elem ) {
		var i = 0,
			len = list.length;
		for ( ; i < len; i++ ) {
			if ( list[i] === elem ) {
				return i;
			}
		}
		return -1;
	},

	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

	// Regular expressions

	// http://www.w3.org/TR/css3-selectors/#whitespace
	whitespace = "[\\x20\\t\\r\\n\\f]",

	// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
	identifier = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
		// Operator (capture 2)
		"*([*^$|!~]?=)" + whitespace +
		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
		"*\\]",

	pseudos = ":(" + identifier + ")(?:\\((" +
		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
		// 1. quoted (capture 3; capture 4 or capture 5)
		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
		// 2. simple (capture 6)
		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
		// 3. anything else (capture 2)
		".*" +
		")\\)|)",

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),
	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),

	rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

	rpseudo = new RegExp( pseudos ),
	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = {
		"ID": new RegExp( "^#(" + identifier + ")" ),
		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
		"ATTR": new RegExp( "^" + attributes ),
		"PSEUDO": new RegExp( "^" + pseudos ),
		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	},

	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	rnative = /^[^{]+\{\s*\[native \w/,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	rsibling = /[+~]/,
	rescape = /'|\\/g,

	// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
	runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
	funescape = function( _, escaped, escapedWhitespace ) {
		var high = "0x" + escaped - 0x10000;
		// NaN means non-codepoint
		// Support: Firefox<24
		// Workaround erroneous numeric interpretation of +"0x"
		return high !== high || escapedWhitespace ?
			escaped :
			high < 0 ?
				// BMP codepoint
				String.fromCharCode( high + 0x10000 ) :
				// Supplemental Plane codepoint (surrogate pair)
				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	},

	// Used for iframes
	// See setDocument()
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE
	unloadHandler = function() {
		setDocument();
	};

// Optimize for push.apply( _, NodeList )
try {
	push.apply(
		(arr = slice.call( preferredDoc.childNodes )),
		preferredDoc.childNodes
	);
	// Support: Android<4.0
	// Detect silently failing push.apply
	arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
	push = { apply: arr.length ?

		// Leverage slice if possible
		function( target, els ) {
			push_native.apply( target, slice.call(els) );
		} :

		// Support: IE<9
		// Otherwise append directly
		function( target, els ) {
			var j = target.length,
				i = 0;
			// Can't trust NodeList.length
			while ( (target[j++] = els[i++]) ) {}
			target.length = j - 1;
		}
	};
}

function Sizzle( selector, context, results, seed ) {
	var m, i, elem, nid, nidselect, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {

		if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
			setDocument( context );
		}
		context = context || document;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {

				// ID selector
				if ( (m = match[1]) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( (elem = context.getElementById( m )) ) {

							// Support: IE, Opera, Webkit
							// TODO: identify versions
							// getElementById can match elements by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}

					// Element context
					} else {

						// Support: IE, Opera, Webkit
						// TODO: identify versions
						// getElementById can match elements by name instead of ID
						if ( newContext && (elem = newContext.getElementById( m )) &&
							contains( context, elem ) &&
							elem.id === m ) {

							results.push( elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[2] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( (m = match[3]) && support.getElementsByClassName &&
					context.getElementsByClassName ) {

					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( support.qsa &&
				!compilerCache[ selector + " " ] &&
				(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

				if ( nodeType !== 1 ) {
					newContext = context;
					newSelector = selector;

				// qSA looks outside Element context, which is not what we want
				// Thanks to Andrew Dupont for this workaround technique
				// Support: IE <=8
				// Exclude object elements
				} else if ( context.nodeName.toLowerCase() !== "object" ) {

					// Capture the context ID, setting it first if necessary
					if ( (nid = context.getAttribute( "id" )) ) {
						nid = nid.replace( rescape, "\\$&" );
					} else {
						context.setAttribute( "id", (nid = expando) );
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					nidselect = ridentifier.test( nid ) ? "#" + nid : "[id='" + nid + "']";
					while ( i-- ) {
						groups[i] = nidselect + " " + toSelector( groups[i] );
					}
					newSelector = groups.join( "," );

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
						context;
				}

				if ( newSelector ) {
					try {
						push.apply( results,
							newContext.querySelectorAll( newSelector )
						);
						return results;
					} catch ( qsaError ) {
					} finally {
						if ( nid === expando ) {
							context.removeAttribute( "id" );
						}
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {
		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
		if ( keys.push( key + " " ) > Expr.cacheLength ) {
			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return (cache[ key + " " ] = value);
	}
	return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ expando ] = true;
	return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created div and expects a boolean result
 */
function assert( fn ) {
	var div = document.createElement("div");

	try {
		return !!fn( div );
	} catch (e) {
		return false;
	} finally {
		// Remove from its parent by default
		if ( div.parentNode ) {
			div.parentNode.removeChild( div );
		}
		// release memory in IE
		div = null;
	}
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
	var arr = attrs.split("|"),
		i = arr.length;

	while ( i-- ) {
		Expr.attrHandle[ arr[i] ] = handler;
	}
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
	var cur = b && a,
		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
			( ~b.sourceIndex || MAX_NEGATIVE ) -
			( ~a.sourceIndex || MAX_NEGATIVE );

	// Use IE sourceIndex if available on both nodes
	if ( diff ) {
		return diff;
	}

	// Check if b follows a
	if ( cur ) {
		while ( (cur = cur.nextSibling) ) {
			if ( cur === b ) {
				return -1;
			}
		}
	}

	return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return name === "input" && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return (name === "input" || name === "button") && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction(function( argument ) {
		argument = +argument;
		return markFunction(function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ (j = matchIndexes[i]) ] ) {
					seed[j] = !(matches[j] = seed[j]);
				}
			}
		});
	});
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
	// documentElement is verified for cases where it doesn't yet exist
	// (such as loading iframes in IE - #4833)
	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
	return documentElement ? documentElement.nodeName !== "HTML" : false;
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
	var hasCompare, parent,
		doc = node ? node.ownerDocument || node : preferredDoc;

	// Return early if doc is invalid or already selected
	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
		return document;
	}

	// Update global variables
	document = doc;
	docElem = document.documentElement;
	documentIsHTML = !isXML( document );

	// Support: IE 9-11, Edge
	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
	if ( (parent = document.defaultView) && parent.top !== parent ) {
		// Support: IE 11
		if ( parent.addEventListener ) {
			parent.addEventListener( "unload", unloadHandler, false );

		// Support: IE 9 - 10 only
		} else if ( parent.attachEvent ) {
			parent.attachEvent( "onunload", unloadHandler );
		}
	}

	/* Attributes
	---------------------------------------------------------------------- */

	// Support: IE<8
	// Verify that getAttribute really returns attributes and not properties
	// (excepting IE8 booleans)
	support.attributes = assert(function( div ) {
		div.className = "i";
		return !div.getAttribute("className");
	});

	/* getElement(s)By*
	---------------------------------------------------------------------- */

	// Check if getElementsByTagName("*") returns only elements
	support.getElementsByTagName = assert(function( div ) {
		div.appendChild( document.createComment("") );
		return !div.getElementsByTagName("*").length;
	});

	// Support: IE<9
	support.getElementsByClassName = rnative.test( document.getElementsByClassName );

	// Support: IE<10
	// Check if getElementById returns elements by name
	// The broken getElementById methods don't pick up programatically-set names,
	// so use a roundabout getElementsByName test
	support.getById = assert(function( div ) {
		docElem.appendChild( div ).id = expando;
		return !document.getElementsByName || !document.getElementsByName( expando ).length;
	});

	// ID find and filter
	if ( support.getById ) {
		Expr.find["ID"] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var m = context.getElementById( id );
				return m ? [ m ] : [];
			}
		};
		Expr.filter["ID"] = function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				return elem.getAttribute("id") === attrId;
			};
		};
	} else {
		// Support: IE6/7
		// getElementById is not reliable as a find shortcut
		delete Expr.find["ID"];

		Expr.filter["ID"] =  function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				var node = typeof elem.getAttributeNode !== "undefined" &&
					elem.getAttributeNode("id");
				return node && node.value === attrId;
			};
		};
	}

	// Tag
	Expr.find["TAG"] = support.getElementsByTagName ?
		function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

			// DocumentFragment nodes don't have gEBTN
			} else if ( support.qsa ) {
				return context.querySelectorAll( tag );
			}
		} :

		function( tag, context ) {
			var elem,
				tmp = [],
				i = 0,
				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
				results = context.getElementsByTagName( tag );

			// Filter out possible comments
			if ( tag === "*" ) {
				while ( (elem = results[i++]) ) {
					if ( elem.nodeType === 1 ) {
						tmp.push( elem );
					}
				}

				return tmp;
			}
			return results;
		};

	// Class
	Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
			return context.getElementsByClassName( className );
		}
	};

	/* QSA/matchesSelector
	---------------------------------------------------------------------- */

	// QSA and matchesSelector support

	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
	rbuggyMatches = [];

	// qSa(:focus) reports false when true (Chrome 21)
	// We allow this because of a bug in IE8/9 that throws an error
	// whenever `document.activeElement` is accessed on an iframe
	// So, we allow :focus to pass through QSA all the time to avoid the IE error
	// See http://bugs.jquery.com/ticket/13378
	rbuggyQSA = [];

	if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
		// Build QSA regex
		// Regex strategy adopted from Diego Perini
		assert(function( div ) {
			// Select is set to empty string on purpose
			// This is to test IE's treatment of not explicitly
			// setting a boolean content attribute,
			// since its presence should be enough
			// http://bugs.jquery.com/ticket/12359
			docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
				"<option selected=''></option></select>";

			// Support: IE8, Opera 11-12.16
			// Nothing should be selected when empty strings follow ^= or $= or *=
			// The test attribute must be unknown in Opera but "safe" for WinRT
			// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
			if ( div.querySelectorAll("[msallowcapture^='']").length ) {
				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
			}

			// Support: IE8
			// Boolean attributes and "value" are not treated correctly
			if ( !div.querySelectorAll("[selected]").length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
			}

			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
			if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
				rbuggyQSA.push("~=");
			}

			// Webkit/Opera - :checked should return selected option elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			// IE8 throws error here and will not see later tests
			if ( !div.querySelectorAll(":checked").length ) {
				rbuggyQSA.push(":checked");
			}

			// Support: Safari 8+, iOS 8+
			// https://bugs.webkit.org/show_bug.cgi?id=136851
			// In-page `selector#id sibing-combinator selector` fails
			if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
				rbuggyQSA.push(".#.+[+~]");
			}
		});

		assert(function( div ) {
			// Support: Windows 8 Native Apps
			// The type and name attributes are restricted during .innerHTML assignment
			var input = document.createElement("input");
			input.setAttribute( "type", "hidden" );
			div.appendChild( input ).setAttribute( "name", "D" );

			// Support: IE8
			// Enforce case-sensitivity of name attribute
			if ( div.querySelectorAll("[name=d]").length ) {
				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
			}

			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
			// IE8 throws error here and will not see later tests
			if ( !div.querySelectorAll(":enabled").length ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Opera 10-11 does not throw on post-comma invalid pseudos
			div.querySelectorAll("*,:x");
			rbuggyQSA.push(",.*:");
		});
	}

	if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
		docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector) )) ) {

		assert(function( div ) {
			// Check to see if it's possible to do matchesSelector
			// on a disconnected node (IE 9)
			support.disconnectedMatch = matches.call( div, "div" );

			// This should fail with an exception
			// Gecko does not error, returns false instead
			matches.call( div, "[s!='']:x" );
			rbuggyMatches.push( "!=", pseudos );
		});
	}

	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );

	/* Contains
	---------------------------------------------------------------------- */
	hasCompare = rnative.test( docElem.compareDocumentPosition );

	// Element contains another
	// Purposefully self-exclusive
	// As in, an element does not contain itself
	contains = hasCompare || rnative.test( docElem.contains ) ?
		function( a, b ) {
			var adown = a.nodeType === 9 ? a.documentElement : a,
				bup = b && b.parentNode;
			return a === bup || !!( bup && bup.nodeType === 1 && (
				adown.contains ?
					adown.contains( bup ) :
					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
			));
		} :
		function( a, b ) {
			if ( b ) {
				while ( (b = b.parentNode) ) {
					if ( b === a ) {
						return true;
					}
				}
			}
			return false;
		};

	/* Sorting
	---------------------------------------------------------------------- */

	// Document order sorting
	sortOrder = hasCompare ?
	function( a, b ) {

		// Flag for duplicate removal
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		// Sort on method existence if only one input has compareDocumentPosition
		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
		if ( compare ) {
			return compare;
		}

		// Calculate position if both inputs belong to the same document
		compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
			a.compareDocumentPosition( b ) :

			// Otherwise we know they are disconnected
			1;

		// Disconnected nodes
		if ( compare & 1 ||
			(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {

			// Choose the first element that is related to our preferred document
			if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
				return -1;
			}
			if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
				return 1;
			}

			// Maintain original order
			return sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;
		}

		return compare & 4 ? -1 : 1;
	} :
	function( a, b ) {
		// Exit early if the nodes are identical
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		var cur,
			i = 0,
			aup = a.parentNode,
			bup = b.parentNode,
			ap = [ a ],
			bp = [ b ];

		// Parentless nodes are either documents or disconnected
		if ( !aup || !bup ) {
			return a === document ? -1 :
				b === document ? 1 :
				aup ? -1 :
				bup ? 1 :
				sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;

		// If the nodes are siblings, we can do a quick check
		} else if ( aup === bup ) {
			return siblingCheck( a, b );
		}

		// Otherwise we need full lists of their ancestors for comparison
		cur = a;
		while ( (cur = cur.parentNode) ) {
			ap.unshift( cur );
		}
		cur = b;
		while ( (cur = cur.parentNode) ) {
			bp.unshift( cur );
		}

		// Walk down the tree looking for a discrepancy
		while ( ap[i] === bp[i] ) {
			i++;
		}

		return i ?
			// Do a sibling check if the nodes have a common ancestor
			siblingCheck( ap[i], bp[i] ) :

			// Otherwise nodes in our document sort first
			ap[i] === preferredDoc ? -1 :
			bp[i] === preferredDoc ? 1 :
			0;
	};

	return document;
};

Sizzle.matches = function( expr, elements ) {
	return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	// Make sure that attribute selectors are quoted
	expr = expr.replace( rattributeQuotes, "='$1']" );

	if ( support.matchesSelector && documentIsHTML &&
		!compilerCache[ expr + " " ] &&
		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

		try {
			var ret = matches.call( elem, expr );

			// IE 9's matchesSelector returns false on disconnected nodes
			if ( ret || support.disconnectedMatch ||
					// As well, disconnected nodes are said to be in a document
					// fragment in IE 9
					elem.document && elem.document.nodeType !== 11 ) {
				return ret;
			}
		} catch (e) {}
	}

	return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {
	// Set document vars if needed
	if ( ( context.ownerDocument || context ) !== document ) {
		setDocument( context );
	}
	return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	var fn = Expr.attrHandle[ name.toLowerCase() ],
		// Don't get fooled by Object.prototype properties (jQuery #13807)
		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
			fn( elem, name, !documentIsHTML ) :
			undefined;

	return val !== undefined ?
		val :
		support.attributes || !documentIsHTML ?
			elem.getAttribute( name ) :
			(val = elem.getAttributeNode(name)) && val.specified ?
				val.value :
				null;
};

Sizzle.error = function( msg ) {
	throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	// Unless we *know* we can detect duplicates, assume their presence
	hasDuplicate = !support.detectDuplicates;
	sortInput = !support.sortStable && results.slice( 0 );
	results.sort( sortOrder );

	if ( hasDuplicate ) {
		while ( (elem = results[i++]) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			results.splice( duplicates[ j ], 1 );
		}
	}

	// Clear input after sorting to release objects
	// See https://github.com/jquery/sizzle/pull/225
	sortInput = null;

	return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
	var node,
		ret = "",
		i = 0,
		nodeType = elem.nodeType;

	if ( !nodeType ) {
		// If no nodeType, this is expected to be an array
		while ( (node = elem[i++]) ) {
			// Do not traverse comment nodes
			ret += getText( node );
		}
	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
		// Use textContent for elements
		// innerText usage removed for consistency of new lines (jQuery #11153)
		if ( typeof elem.textContent === "string" ) {
			return elem.textContent;
		} else {
			// Traverse its children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				ret += getText( elem );
			}
		}
	} else if ( nodeType === 3 || nodeType === 4 ) {
		return elem.nodeValue;
	}
	// Do not include comment or processing instruction nodes

	return ret;
};

Expr = Sizzle.selectors = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	attrHandle: {},

	find: {},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: {
		"ATTR": function( match ) {
			match[1] = match[1].replace( runescape, funescape );

			// Move the given value to match[3] whether quoted or unquoted
			match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );

			if ( match[2] === "~=" ) {
				match[3] = " " + match[3] + " ";
			}

			return match.slice( 0, 4 );
		},

		"CHILD": function( match ) {
			/* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
			match[1] = match[1].toLowerCase();

			if ( match[1].slice( 0, 3 ) === "nth" ) {
				// nth-* requires argument
				if ( !match[3] ) {
					Sizzle.error( match[0] );
				}

				// numeric x and y parameters for Expr.filter.CHILD
				// remember that false/true cast respectively to 0/1
				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );

			// other types prohibit arguments
			} else if ( match[3] ) {
				Sizzle.error( match[0] );
			}

			return match;
		},

		"PSEUDO": function( match ) {
			var excess,
				unquoted = !match[6] && match[2];

			if ( matchExpr["CHILD"].test( match[0] ) ) {
				return null;
			}

			// Accept quoted arguments as-is
			if ( match[3] ) {
				match[2] = match[4] || match[5] || "";

			// Strip excess characters from unquoted arguments
			} else if ( unquoted && rpseudo.test( unquoted ) &&
				// Get excess from tokenize (recursively)
				(excess = tokenize( unquoted, true )) &&
				// advance to the next closing parenthesis
				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

				// excess is a negative index
				match[0] = match[0].slice( 0, excess );
				match[2] = unquoted.slice( 0, excess );
			}

			// Return only captures needed by the pseudo filter method (type and argument)
			return match.slice( 0, 3 );
		}
	},

	filter: {

		"TAG": function( nodeNameSelector ) {
			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
			return nodeNameSelector === "*" ?
				function() { return true; } :
				function( elem ) {
					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
				};
		},

		"CLASS": function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
				classCache( className, function( elem ) {
					return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
				});
		},

		"ATTR": function( name, operator, check ) {
			return function( elem ) {
				var result = Sizzle.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				return operator === "=" ? result === check :
					operator === "!=" ? result !== check :
					operator === "^=" ? check && result.indexOf( check ) === 0 :
					operator === "*=" ? check && result.indexOf( check ) > -1 :
					operator === "$=" ? check && result.slice( -check.length ) === check :
					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
					false;
			};
		},

		"CHILD": function( type, what, argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, context, xml ) {
					var cache, uniqueCache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( (node = node[ dir ]) ) {
									if ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) {

										return false;
									}
								}
								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index

							// ...in a gzip-friendly way
							node = parent;
							outerCache = node[ expando ] || (node[ expando ] = {});

							// Support: IE <9 only
							// Defend against cloned attroperties (jQuery gh-1709)
							uniqueCache = outerCache[ node.uniqueID ] ||
								(outerCache[ node.uniqueID ] = {});

							cache = uniqueCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( (node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								(diff = nodeIndex = 0) || start.pop()) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {
							// Use previously-cached element index if available
							if ( useCache ) {
								// ...in a gzip-friendly way
								node = elem;
								outerCache = node[ expando ] || (node[ expando ] = {});

								// Support: IE <9 only
								// Defend against cloned attroperties (jQuery gh-1709)
								uniqueCache = outerCache[ node.uniqueID ] ||
									(outerCache[ node.uniqueID ] = {});

								cache = uniqueCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {
								// Use the same loop as above to seek `elem` from the start
								while ( (node = ++nodeIndex && node && node[ dir ] ||
									(diff = nodeIndex = 0) || start.pop()) ) {

									if ( ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ expando ] || (node[ expando ] = {});

											// Support: IE <9 only
											// Defend against cloned attroperties (jQuery gh-1709)
											uniqueCache = outerCache[ node.uniqueID ] ||
												(outerCache[ node.uniqueID ] = {});

											uniqueCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		"PSEUDO": function( pseudo, argument ) {
			// pseudo-class names are case-insensitive
			// http://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var args,
				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
					Sizzle.error( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as Sizzle does
			if ( fn[ expando ] ) {
				return fn( argument );
			}

			// But maintain support for old signatures
			if ( fn.length > 1 ) {
				args = [ pseudo, pseudo, "", argument ];
				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
					markFunction(function( seed, matches ) {
						var idx,
							matched = fn( seed, argument ),
							i = matched.length;
						while ( i-- ) {
							idx = indexOf( seed, matched[i] );
							seed[ idx ] = !( matches[ idx ] = matched[i] );
						}
					}) :
					function( elem ) {
						return fn( elem, 0, args );
					};
			}

			return fn;
		}
	},

	pseudos: {
		// Potentially complex pseudos
		"not": markFunction(function( selector ) {
			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrim, "$1" ) );

			return matcher[ expando ] ?
				markFunction(function( seed, matches, context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( (elem = unmatched[i]) ) {
							seed[i] = !(matches[i] = elem);
						}
					}
				}) :
				function( elem, context, xml ) {
					input[0] = elem;
					matcher( input, null, xml, results );
					// Don't keep the element (issue #299)
					input[0] = null;
					return !results.pop();
				};
		}),

		"has": markFunction(function( selector ) {
			return function( elem ) {
				return Sizzle( selector, elem ).length > 0;
			};
		}),

		"contains": markFunction(function( text ) {
			text = text.replace( runescape, funescape );
			return function( elem ) {
				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
			};
		}),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// http://www.w3.org/TR/selectors/#lang-pseudo
		"lang": markFunction( function( lang ) {
			// lang value must be a valid identifier
			if ( !ridentifier.test(lang || "") ) {
				Sizzle.error( "unsupported lang: " + lang );
			}
			lang = lang.replace( runescape, funescape ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( (elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
				return false;
			};
		}),

		// Miscellaneous
		"target": function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		"root": function( elem ) {
			return elem === docElem;
		},

		"focus": function( elem ) {
			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
		},

		// Boolean properties
		"enabled": function( elem ) {
			return elem.disabled === false;
		},

		"disabled": function( elem ) {
			return elem.disabled === true;
		},

		"checked": function( elem ) {
			// In CSS3, :checked should return both checked and selected elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			var nodeName = elem.nodeName.toLowerCase();
			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
		},

		"selected": function( elem ) {
			// Accessing this property makes selected-by-default
			// options in Safari work properly
			if ( elem.parentNode ) {
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		"empty": function( elem ) {
			// http://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		"parent": function( elem ) {
			return !Expr.pseudos["empty"]( elem );
		},

		// Element/input types
		"header": function( elem ) {
			return rheader.test( elem.nodeName );
		},

		"input": function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		"button": function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === "button" || name === "button";
		},

		"text": function( elem ) {
			var attr;
			return elem.nodeName.toLowerCase() === "input" &&
				elem.type === "text" &&

				// Support: IE<8
				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
		},

		// Position-in-collection
		"first": createPositionalPseudo(function() {
			return [ 0 ];
		}),

		"last": createPositionalPseudo(function( matchIndexes, length ) {
			return [ length - 1 ];
		}),

		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
			return [ argument < 0 ? argument + length : argument ];
		}),

		"even": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 0;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"odd": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 1;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; --i >= 0; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; ++i < length; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		})
	}
};

Expr.pseudos["nth"] = Expr.pseudos["eq"];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
	Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
	Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = Expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || (match = rcomma.exec( soFar )) ) {
			if ( match ) {
				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[0].length ) || soFar;
			}
			groups.push( (tokens = []) );
		}

		matched = false;

		// Combinators
		if ( (match = rcombinators.exec( soFar )) ) {
			matched = match.shift();
			tokens.push({
				value: matched,
				// Cast descendant combinators to space
				type: match[0].replace( rtrim, " " )
			});
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in Expr.filter ) {
			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
				(match = preFilters[ type ]( match ))) ) {
				matched = match.shift();
				tokens.push({
					value: matched,
					type: type,
					matches: match
				});
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	return parseOnly ?
		soFar.length :
		soFar ?
			Sizzle.error( selector ) :
			// Cache the tokens
			tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[i].value;
	}
	return selector;
}

function addCombinator( matcher, combinator, base ) {
	var dir = combinator.dir,
		checkNonElements = base && dir === "parentNode",
		doneName = done++;

	return combinator.first ?
		// Check against closest ancestor/preceding element
		function( elem, context, xml ) {
			while ( (elem = elem[ dir ]) ) {
				if ( elem.nodeType === 1 || checkNonElements ) {
					return matcher( elem, context, xml );
				}
			}
		} :

		// Check against all ancestor/preceding elements
		function( elem, context, xml ) {
			var oldCache, uniqueCache, outerCache,
				newCache = [ dirruns, doneName ];

			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
			if ( xml ) {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						if ( matcher( elem, context, xml ) ) {
							return true;
						}
					}
				}
			} else {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						outerCache = elem[ expando ] || (elem[ expando ] = {});

						// Support: IE <9 only
						// Defend against cloned attroperties (jQuery gh-1709)
						uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});

						if ( (oldCache = uniqueCache[ dir ]) &&
							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

							// Assign to newCache so results back-propagate to previous elements
							return (newCache[ 2 ] = oldCache[ 2 ]);
						} else {
							// Reuse newcache so results back-propagate to previous elements
							uniqueCache[ dir ] = newCache;

							// A match means we're done; a fail means we have to keep checking
							if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
								return true;
							}
						}
					}
				}
			}
		};
}

function elementMatcher( matchers ) {
	return matchers.length > 1 ?
		function( elem, context, xml ) {
			var i = matchers.length;
			while ( i-- ) {
				if ( !matchers[i]( elem, context, xml ) ) {
					return false;
				}
			}
			return true;
		} :
		matchers[0];
}

function multipleContexts( selector, contexts, results ) {
	var i = 0,
		len = contexts.length;
	for ( ; i < len; i++ ) {
		Sizzle( selector, contexts[i], results );
	}
	return results;
}

function condense( unmatched, map, filter, context, xml ) {
	var elem,
		newUnmatched = [],
		i = 0,
		len = unmatched.length,
		mapped = map != null;

	for ( ; i < len; i++ ) {
		if ( (elem = unmatched[i]) ) {
			if ( !filter || filter( elem, context, xml ) ) {
				newUnmatched.push( elem );
				if ( mapped ) {
					map.push( i );
				}
			}
		}
	}

	return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
	if ( postFilter && !postFilter[ expando ] ) {
		postFilter = setMatcher( postFilter );
	}
	if ( postFinder && !postFinder[ expando ] ) {
		postFinder = setMatcher( postFinder, postSelector );
	}
	return markFunction(function( seed, results, context, xml ) {
		var temp, i, elem,
			preMap = [],
			postMap = [],
			preexisting = results.length,

			// Get initial elements from seed or context
			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),

			// Prefilter to get matcher input, preserving a map for seed-results synchronization
			matcherIn = preFilter && ( seed || !selector ) ?
				condense( elems, preMap, preFilter, context, xml ) :
				elems,

			matcherOut = matcher ?
				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

					// ...intermediate processing is necessary
					[] :

					// ...otherwise use results directly
					results :
				matcherIn;

		// Find primary matches
		if ( matcher ) {
			matcher( matcherIn, matcherOut, context, xml );
		}

		// Apply postFilter
		if ( postFilter ) {
			temp = condense( matcherOut, postMap );
			postFilter( temp, [], context, xml );

			// Un-match failing elements by moving them back to matcherIn
			i = temp.length;
			while ( i-- ) {
				if ( (elem = temp[i]) ) {
					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
				}
			}
		}

		if ( seed ) {
			if ( postFinder || preFilter ) {
				if ( postFinder ) {
					// Get the final matcherOut by condensing this intermediate into postFinder contexts
					temp = [];
					i = matcherOut.length;
					while ( i-- ) {
						if ( (elem = matcherOut[i]) ) {
							// Restore matcherIn since elem is not yet a final match
							temp.push( (matcherIn[i] = elem) );
						}
					}
					postFinder( null, (matcherOut = []), temp, xml );
				}

				// Move matched elements from seed to results to keep them synchronized
				i = matcherOut.length;
				while ( i-- ) {
					if ( (elem = matcherOut[i]) &&
						(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {

						seed[temp] = !(results[temp] = elem);
					}
				}
			}

		// Add elements to results, through postFinder if defined
		} else {
			matcherOut = condense(
				matcherOut === results ?
					matcherOut.splice( preexisting, matcherOut.length ) :
					matcherOut
			);
			if ( postFinder ) {
				postFinder( null, results, matcherOut, xml );
			} else {
				push.apply( results, matcherOut );
			}
		}
	});
}

function matcherFromTokens( tokens ) {
	var checkContext, matcher, j,
		len = tokens.length,
		leadingRelative = Expr.relative[ tokens[0].type ],
		implicitRelative = leadingRelative || Expr.relative[" "],
		i = leadingRelative ? 1 : 0,

		// The foundational matcher ensures that elements are reachable from top-level context(s)
		matchContext = addCombinator( function( elem ) {
			return elem === checkContext;
		}, implicitRelative, true ),
		matchAnyContext = addCombinator( function( elem ) {
			return indexOf( checkContext, elem ) > -1;
		}, implicitRelative, true ),
		matchers = [ function( elem, context, xml ) {
			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
				(checkContext = context).nodeType ?
					matchContext( elem, context, xml ) :
					matchAnyContext( elem, context, xml ) );
			// Avoid hanging onto element (issue #299)
			checkContext = null;
			return ret;
		} ];

	for ( ; i < len; i++ ) {
		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
		} else {
			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );

			// Return special upon seeing a positional matcher
			if ( matcher[ expando ] ) {
				// Find the next relative operator (if any) for proper handling
				j = ++i;
				for ( ; j < len; j++ ) {
					if ( Expr.relative[ tokens[j].type ] ) {
						break;
					}
				}
				return setMatcher(
					i > 1 && elementMatcher( matchers ),
					i > 1 && toSelector(
						// If the preceding token was a descendant combinator, insert an implicit any-element `*`
						tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
					).replace( rtrim, "$1" ),
					matcher,
					i < j && matcherFromTokens( tokens.slice( i, j ) ),
					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
					j < len && toSelector( tokens )
				);
			}
			matchers.push( matcher );
		}
	}

	return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
	var bySet = setMatchers.length > 0,
		byElement = elementMatchers.length > 0,
		superMatcher = function( seed, context, xml, results, outermost ) {
			var elem, j, matcher,
				matchedCount = 0,
				i = "0",
				unmatched = seed && [],
				setMatched = [],
				contextBackup = outermostContext,
				// We must always have either seed elements or outermost context
				elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
				// Use integer dirruns iff this is the outermost matcher
				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
				len = elems.length;

			if ( outermost ) {
				outermostContext = context === document || context || outermost;
			}

			// Add elements passing elementMatchers directly to results
			// Support: IE<9, Safari
			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
			for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
				if ( byElement && elem ) {
					j = 0;
					if ( !context && elem.ownerDocument !== document ) {
						setDocument( elem );
						xml = !documentIsHTML;
					}
					while ( (matcher = elementMatchers[j++]) ) {
						if ( matcher( elem, context || document, xml) ) {
							results.push( elem );
							break;
						}
					}
					if ( outermost ) {
						dirruns = dirrunsUnique;
					}
				}

				// Track unmatched elements for set filters
				if ( bySet ) {
					// They will have gone through all possible matchers
					if ( (elem = !matcher && elem) ) {
						matchedCount--;
					}

					// Lengthen the array for every element, matched or not
					if ( seed ) {
						unmatched.push( elem );
					}
				}
			}

			// `i` is now the count of elements visited above, and adding it to `matchedCount`
			// makes the latter nonnegative.
			matchedCount += i;

			// Apply set filters to unmatched elements
			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
			// no element matchers and no seed.
			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
			// numerically zero.
			if ( bySet && i !== matchedCount ) {
				j = 0;
				while ( (matcher = setMatchers[j++]) ) {
					matcher( unmatched, setMatched, context, xml );
				}

				if ( seed ) {
					// Reintegrate element matches to eliminate the need for sorting
					if ( matchedCount > 0 ) {
						while ( i-- ) {
							if ( !(unmatched[i] || setMatched[i]) ) {
								setMatched[i] = pop.call( results );
							}
						}
					}

					// Discard index placeholder values to get only actual matches
					setMatched = condense( setMatched );
				}

				// Add matches to results
				push.apply( results, setMatched );

				// Seedless set matches succeeding multiple successful matchers stipulate sorting
				if ( outermost && !seed && setMatched.length > 0 &&
					( matchedCount + setMatchers.length ) > 1 ) {

					Sizzle.uniqueSort( results );
				}
			}

			// Override manipulation of globals by nested matchers
			if ( outermost ) {
				dirruns = dirrunsUnique;
				outermostContext = contextBackup;
			}

			return unmatched;
		};

	return bySet ?
		markFunction( superMatcher ) :
		superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
	var i,
		setMatchers = [],
		elementMatchers = [],
		cached = compilerCache[ selector + " " ];

	if ( !cached ) {
		// Generate a function of recursive functions that can be used to check each element
		if ( !match ) {
			match = tokenize( selector );
		}
		i = match.length;
		while ( i-- ) {
			cached = matcherFromTokens( match[i] );
			if ( cached[ expando ] ) {
				setMatchers.push( cached );
			} else {
				elementMatchers.push( cached );
			}
		}

		// Cache the compiled function
		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

		// Save selector and tokenization
		cached.selector = selector;
	}
	return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
	var i, tokens, token, type, find,
		compiled = typeof selector === "function" && selector,
		match = !seed && tokenize( (selector = compiled.selector || selector) );

	results = results || [];

	// Try to minimize operations if there is only one selector in the list and no seed
	// (the latter of which guarantees us context)
	if ( match.length === 1 ) {

		// Reduce context if the leading compound selector is an ID
		tokens = match[0] = match[0].slice( 0 );
		if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
				support.getById && context.nodeType === 9 && documentIsHTML &&
				Expr.relative[ tokens[1].type ] ) {

			context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
			if ( !context ) {
				return results;

			// Precompiled matchers will still verify ancestry, so step up a level
			} else if ( compiled ) {
				context = context.parentNode;
			}

			selector = selector.slice( tokens.shift().value.length );
		}

		// Fetch a seed set for right-to-left matching
		i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
		while ( i-- ) {
			token = tokens[i];

			// Abort if we hit a combinator
			if ( Expr.relative[ (type = token.type) ] ) {
				break;
			}
			if ( (find = Expr.find[ type ]) ) {
				// Search, expanding context for leading sibling combinators
				if ( (seed = find(
					token.matches[0].replace( runescape, funescape ),
					rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
				)) ) {

					// If seed is empty or no tokens remain, we can return early
					tokens.splice( i, 1 );
					selector = seed.length && toSelector( tokens );
					if ( !selector ) {
						push.apply( results, seed );
						return results;
					}

					break;
				}
			}
		}
	}

	// Compile and execute a filtering function if one is not provided
	// Provide `match` to avoid retokenization if we modified the selector above
	( compiled || compile( selector, match ) )(
		seed,
		context,
		!documentIsHTML,
		results,
		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
	);
	return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {
	// Should return 1, but returns 4 (following)
	return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});

// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
	div.innerHTML = "<a href='#'></a>";
	return div.firstChild.getAttribute("href") === "#" ;
}) ) {
	addHandle( "type|href|height|width", function( elem, name, isXML ) {
		if ( !isXML ) {
			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
		}
	});
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {
	div.innerHTML = "<input/>";
	div.firstChild.setAttribute( "value", "" );
	return div.firstChild.getAttribute( "value" ) === "";
}) ) {
	addHandle( "value", function( elem, name, isXML ) {
		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
			return elem.defaultValue;
		}
	});
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {
	return div.getAttribute("disabled") == null;
}) ) {
	addHandle( booleans, function( elem, name, isXML ) {
		var val;
		if ( !isXML ) {
			return elem[ name ] === true ? name.toLowerCase() :
					(val = elem.getAttributeNode( name )) && val.specified ?
					val.value :
				null;
		}
	});
}

return Sizzle;

})( window );



jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[ ":" ] = jQuery.expr.pseudos;
jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;



var dir = function( elem, dir, until ) {
	var matched = [],
		truncate = until !== undefined;

	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
		if ( elem.nodeType === 1 ) {
			if ( truncate && jQuery( elem ).is( until ) ) {
				break;
			}
			matched.push( elem );
		}
	}
	return matched;
};


var siblings = function( n, elem ) {
	var matched = [];

	for ( ; n; n = n.nextSibling ) {
		if ( n.nodeType === 1 && n !== elem ) {
			matched.push( n );
		}
	}

	return matched;
};


var rneedsContext = jQuery.expr.match.needsContext;

var rsingleTag = ( /^<([\w-]+)\s*\/?>(?:<\/\1>|)$/ );



var risSimple = /^.[^:#\[\.,]*$/;

// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
	if ( jQuery.isFunction( qualifier ) ) {
		return jQuery.grep( elements, function( elem, i ) {
			/* jshint -W018 */
			return !!qualifier.call( elem, i, elem ) !== not;
		} );

	}

	if ( qualifier.nodeType ) {
		return jQuery.grep( elements, function( elem ) {
			return ( elem === qualifier ) !== not;
		} );

	}

	if ( typeof qualifier === "string" ) {
		if ( risSimple.test( qualifier ) ) {
			return jQuery.filter( qualifier, elements, not );
		}

		qualifier = jQuery.filter( qualifier, elements );
	}

	return jQuery.grep( elements, function( elem ) {
		return ( jQuery.inArray( elem, qualifier ) > -1 ) !== not;
	} );
}

jQuery.filter = function( expr, elems, not ) {
	var elem = elems[ 0 ];

	if ( not ) {
		expr = ":not(" + expr + ")";
	}

	return elems.length === 1 && elem.nodeType === 1 ?
		jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
		jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
			return elem.nodeType === 1;
		} ) );
};

jQuery.fn.extend( {
	find: function( selector ) {
		var i,
			ret = [],
			self = this,
			len = self.length;

		if ( typeof selector !== "string" ) {
			return this.pushStack( jQuery( selector ).filter( function() {
				for ( i = 0; i < len; i++ ) {
					if ( jQuery.contains( self[ i ], this ) ) {
						return true;
					}
				}
			} ) );
		}

		for ( i = 0; i < len; i++ ) {
			jQuery.find( selector, self[ i ], ret );
		}

		// Needed because $( selector, context ) becomes $( context ).find( selector )
		ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
		ret.selector = this.selector ? this.selector + " " + selector : selector;
		return ret;
	},
	filter: function( selector ) {
		return this.pushStack( winnow( this, selector || [], false ) );
	},
	not: function( selector ) {
		return this.pushStack( winnow( this, selector || [], true ) );
	},
	is: function( selector ) {
		return !!winnow(
			this,

			// If this is a positional/relative selector, check membership in the returned set
			// so $("p:first").is("p:last") won't return true for a doc with two "p".
			typeof selector === "string" && rneedsContext.test( selector ) ?
				jQuery( selector ) :
				selector || [],
			false
		).length;
	}
} );


// Initialize a jQuery object


// A central reference to the root jQuery(document)
var rootjQuery,

	// A simple way to check for HTML strings
	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
	// Strict HTML recognition (#11290: must start with <)
	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,

	init = jQuery.fn.init = function( selector, context, root ) {
		var match, elem;

		// HANDLE: $(""), $(null), $(undefined), $(false)
		if ( !selector ) {
			return this;
		}

		// init accepts an alternate rootjQuery
		// so migrate can support jQuery.sub (gh-2101)
		root = root || rootjQuery;

		// Handle HTML strings
		if ( typeof selector === "string" ) {
			if ( selector.charAt( 0 ) === "<" &&
				selector.charAt( selector.length - 1 ) === ">" &&
				selector.length >= 3 ) {

				// Assume that strings that start and end with <> are HTML and skip the regex check
				match = [ null, selector, null ];

			} else {
				match = rquickExpr.exec( selector );
			}

			// Match html or make sure no context is specified for #id
			if ( match && ( match[ 1 ] || !context ) ) {

				// HANDLE: $(html) -> $(array)
				if ( match[ 1 ] ) {
					context = context instanceof jQuery ? context[ 0 ] : context;

					// scripts is true for back-compat
					// Intentionally let the error be thrown if parseHTML is not present
					jQuery.merge( this, jQuery.parseHTML(
						match[ 1 ],
						context && context.nodeType ? context.ownerDocument || context : document,
						true
					) );

					// HANDLE: $(html, props)
					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
						for ( match in context ) {

							// Properties of context are called as methods if possible
							if ( jQuery.isFunction( this[ match ] ) ) {
								this[ match ]( context[ match ] );

							// ...and otherwise set as attributes
							} else {
								this.attr( match, context[ match ] );
							}
						}
					}

					return this;

				// HANDLE: $(#id)
				} else {
					elem = document.getElementById( match[ 2 ] );

					// Check parentNode to catch when Blackberry 4.6 returns
					// nodes that are no longer in the document #6963
					if ( elem && elem.parentNode ) {

						// Handle the case where IE and Opera return items
						// by name instead of ID
						if ( elem.id !== match[ 2 ] ) {
							return rootjQuery.find( selector );
						}

						// Otherwise, we inject the element directly into the jQuery object
						this.length = 1;
						this[ 0 ] = elem;
					}

					this.context = document;
					this.selector = selector;
					return this;
				}

			// HANDLE: $(expr, $(...))
			} else if ( !context || context.jquery ) {
				return ( context || root ).find( selector );

			// HANDLE: $(expr, context)
			// (which is just equivalent to: $(context).find(expr)
			} else {
				return this.constructor( context ).find( selector );
			}

		// HANDLE: $(DOMElement)
		} else if ( selector.nodeType ) {
			this.context = this[ 0 ] = selector;
			this.length = 1;
			return this;

		// HANDLE: $(function)
		// Shortcut for document ready
		} else if ( jQuery.isFunction( selector ) ) {
			return typeof root.ready !== "undefined" ?
				root.ready( selector ) :

				// Execute immediately if ready is not present
				selector( jQuery );
		}

		if ( selector.selector !== undefined ) {
			this.selector = selector.selector;
			this.context = selector.context;
		}

		return jQuery.makeArray( selector, this );
	};

// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;

// Initialize central reference
rootjQuery = jQuery( document );


var rparentsprev = /^(?:parents|prev(?:Until|All))/,

	// methods guaranteed to produce a unique set when starting from a unique set
	guaranteedUnique = {
		children: true,
		contents: true,
		next: true,
		prev: true
	};

jQuery.fn.extend( {
	has: function( target ) {
		var i,
			targets = jQuery( target, this ),
			len = targets.length;

		return this.filter( function() {
			for ( i = 0; i < len; i++ ) {
				if ( jQuery.contains( this, targets[ i ] ) ) {
					return true;
				}
			}
		} );
	},

	closest: function( selectors, context ) {
		var cur,
			i = 0,
			l = this.length,
			matched = [],
			pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
				jQuery( selectors, context || this.context ) :
				0;

		for ( ; i < l; i++ ) {
			for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {

				// Always skip document fragments
				if ( cur.nodeType < 11 && ( pos ?
					pos.index( cur ) > -1 :

					// Don't pass non-elements to Sizzle
					cur.nodeType === 1 &&
						jQuery.find.matchesSelector( cur, selectors ) ) ) {

					matched.push( cur );
					break;
				}
			}
		}

		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
	},

	// Determine the position of an element within
	// the matched set of elements
	index: function( elem ) {

		// No argument, return index in parent
		if ( !elem ) {
			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
		}

		// index in selector
		if ( typeof elem === "string" ) {
			return jQuery.inArray( this[ 0 ], jQuery( elem ) );
		}

		// Locate the position of the desired element
		return jQuery.inArray(

			// If it receives a jQuery object, the first element is used
			elem.jquery ? elem[ 0 ] : elem, this );
	},

	add: function( selector, context ) {
		return this.pushStack(
			jQuery.uniqueSort(
				jQuery.merge( this.get(), jQuery( selector, context ) )
			)
		);
	},

	addBack: function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	}
} );

function sibling( cur, dir ) {
	do {
		cur = cur[ dir ];
	} while ( cur && cur.nodeType !== 1 );

	return cur;
}

jQuery.each( {
	parent: function( elem ) {
		var parent = elem.parentNode;
		return parent && parent.nodeType !== 11 ? parent : null;
	},
	parents: function( elem ) {
		return dir( elem, "parentNode" );
	},
	parentsUntil: function( elem, i, until ) {
		return dir( elem, "parentNode", until );
	},
	next: function( elem ) {
		return sibling( elem, "nextSibling" );
	},
	prev: function( elem ) {
		return sibling( elem, "previousSibling" );
	},
	nextAll: function( elem ) {
		return dir( elem, "nextSibling" );
	},
	prevAll: function( elem ) {
		return dir( elem, "previousSibling" );
	},
	nextUntil: function( elem, i, until ) {
		return dir( elem, "nextSibling", until );
	},
	prevUntil: function( elem, i, until ) {
		return dir( elem, "previousSibling", until );
	},
	siblings: function( elem ) {
		return siblings( ( elem.parentNode || {} ).firstChild, elem );
	},
	children: function( elem ) {
		return siblings( elem.firstChild );
	},
	contents: function( elem ) {
		return jQuery.nodeName( elem, "iframe" ) ?
			elem.contentDocument || elem.contentWindow.document :
			jQuery.merge( [], elem.childNodes );
	}
}, function( name, fn ) {
	jQuery.fn[ name ] = function( until, selector ) {
		var ret = jQuery.map( this, fn, until );

		if ( name.slice( -5 ) !== "Until" ) {
			selector = until;
		}

		if ( selector && typeof selector === "string" ) {
			ret = jQuery.filter( selector, ret );
		}

		if ( this.length > 1 ) {

			// Remove duplicates
			if ( !guaranteedUnique[ name ] ) {
				ret = jQuery.uniqueSort( ret );
			}

			// Reverse order for parents* and prev-derivatives
			if ( rparentsprev.test( name ) ) {
				ret = ret.reverse();
			}
		}

		return this.pushStack( ret );
	};
} );
var rnotwhite = ( /\S+/g );



// Convert String-formatted options into Object-formatted ones
function createOptions( options ) {
	var object = {};
	jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
		object[ flag ] = true;
	} );
	return object;
}

/*
 * Create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a Deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a Deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stopOnFalse:	interrupt callings when a callback returns false
 *
 */
jQuery.Callbacks = function( options ) {

	// Convert options from String-formatted to Object-formatted if needed
	// (we check in cache first)
	options = typeof options === "string" ?
		createOptions( options ) :
		jQuery.extend( {}, options );

	var // Flag to know if list is currently firing
		firing,

		// Last fire value for non-forgettable lists
		memory,

		// Flag to know if list was already fired
		fired,

		// Flag to prevent firing
		locked,

		// Actual callback list
		list = [],

		// Queue of execution data for repeatable lists
		queue = [],

		// Index of currently firing callback (modified by add/remove as needed)
		firingIndex = -1,

		// Fire callbacks
		fire = function() {

			// Enforce single-firing
			locked = options.once;

			// Execute callbacks for all pending executions,
			// respecting firingIndex overrides and runtime changes
			fired = firing = true;
			for ( ; queue.length; firingIndex = -1 ) {
				memory = queue.shift();
				while ( ++firingIndex < list.length ) {

					// Run callback and check for early termination
					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
						options.stopOnFalse ) {

						// Jump to end and forget the data so .add doesn't re-fire
						firingIndex = list.length;
						memory = false;
					}
				}
			}

			// Forget the data if we're done with it
			if ( !options.memory ) {
				memory = false;
			}

			firing = false;

			// Clean up if we're done firing for good
			if ( locked ) {

				// Keep an empty list if we have data for future add calls
				if ( memory ) {
					list = [];

				// Otherwise, this object is spent
				} else {
					list = "";
				}
			}
		},

		// Actual Callbacks object
		self = {

			// Add a callback or a collection of callbacks to the list
			add: function() {
				if ( list ) {

					// If we have memory from a past run, we should fire after adding
					if ( memory && !firing ) {
						firingIndex = list.length - 1;
						queue.push( memory );
					}

					( function add( args ) {
						jQuery.each( args, function( _, arg ) {
							if ( jQuery.isFunction( arg ) ) {
								if ( !options.unique || !self.has( arg ) ) {
									list.push( arg );
								}
							} else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {

								// Inspect recursively
								add( arg );
							}
						} );
					} )( arguments );

					if ( memory && !firing ) {
						fire();
					}
				}
				return this;
			},

			// Remove a callback from the list
			remove: function() {
				jQuery.each( arguments, function( _, arg ) {
					var index;
					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
						list.splice( index, 1 );

						// Handle firing indexes
						if ( index <= firingIndex ) {
							firingIndex--;
						}
					}
				} );
				return this;
			},

			// Check if a given callback is in the list.
			// If no argument is given, return whether or not list has callbacks attached.
			has: function( fn ) {
				return fn ?
					jQuery.inArray( fn, list ) > -1 :
					list.length > 0;
			},

			// Remove all callbacks from the list
			empty: function() {
				if ( list ) {
					list = [];
				}
				return this;
			},

			// Disable .fire and .add
			// Abort any current/pending executions
			// Clear all callbacks and values
			disable: function() {
				locked = queue = [];
				list = memory = "";
				return this;
			},
			disabled: function() {
				return !list;
			},

			// Disable .fire
			// Also disable .add unless we have memory (since it would have no effect)
			// Abort any pending executions
			lock: function() {
				locked = true;
				if ( !memory ) {
					self.disable();
				}
				return this;
			},
			locked: function() {
				return !!locked;
			},

			// Call all callbacks with the given context and arguments
			fireWith: function( context, args ) {
				if ( !locked ) {
					args = args || [];
					args = [ context, args.slice ? args.slice() : args ];
					queue.push( args );
					if ( !firing ) {
						fire();
					}
				}
				return this;
			},

			// Call all the callbacks with the given arguments
			fire: function() {
				self.fireWith( this, arguments );
				return this;
			},

			// To know if the callbacks have already been called at least once
			fired: function() {
				return !!fired;
			}
		};

	return self;
};


jQuery.extend( {

	Deferred: function( func ) {
		var tuples = [

				// action, add listener, listener list, final state
				[ "resolve", "done", jQuery.Callbacks( "once memory" ), "resolved" ],
				[ "reject", "fail", jQuery.Callbacks( "once memory" ), "rejected" ],
				[ "notify", "progress", jQuery.Callbacks( "memory" ) ]
			],
			state = "pending",
			promise = {
				state: function() {
					return state;
				},
				always: function() {
					deferred.done( arguments ).fail( arguments );
					return this;
				},
				then: function( /* fnDone, fnFail, fnProgress */ ) {
					var fns = arguments;
					return jQuery.Deferred( function( newDefer ) {
						jQuery.each( tuples, function( i, tuple ) {
							var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];

							// deferred[ done | fail | progress ] for forwarding actions to newDefer
							deferred[ tuple[ 1 ] ]( function() {
								var returned = fn && fn.apply( this, arguments );
								if ( returned && jQuery.isFunction( returned.promise ) ) {
									returned.promise()
										.progress( newDefer.notify )
										.done( newDefer.resolve )
										.fail( newDefer.reject );
								} else {
									newDefer[ tuple[ 0 ] + "With" ](
										this === promise ? newDefer.promise() : this,
										fn ? [ returned ] : arguments
									);
								}
							} );
						} );
						fns = null;
					} ).promise();
				},

				// Get a promise for this deferred
				// If obj is provided, the promise aspect is added to the object
				promise: function( obj ) {
					return obj != null ? jQuery.extend( obj, promise ) : promise;
				}
			},
			deferred = {};

		// Keep pipe for back-compat
		promise.pipe = promise.then;

		// Add list-specific methods
		jQuery.each( tuples, function( i, tuple ) {
			var list = tuple[ 2 ],
				stateString = tuple[ 3 ];

			// promise[ done | fail | progress ] = list.add
			promise[ tuple[ 1 ] ] = list.add;

			// Handle state
			if ( stateString ) {
				list.add( function() {

					// state = [ resolved | rejected ]
					state = stateString;

				// [ reject_list | resolve_list ].disable; progress_list.lock
				}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
			}

			// deferred[ resolve | reject | notify ]
			deferred[ tuple[ 0 ] ] = function() {
				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? promise : this, arguments );
				return this;
			};
			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
		} );

		// Make the deferred a promise
		promise.promise( deferred );

		// Call given func if any
		if ( func ) {
			func.call( deferred, deferred );
		}

		// All done!
		return deferred;
	},

	// Deferred helper
	when: function( subordinate /* , ..., subordinateN */ ) {
		var i = 0,
			resolveValues = slice.call( arguments ),
			length = resolveValues.length,

			// the count of uncompleted subordinates
			remaining = length !== 1 ||
				( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,

			// the master Deferred.
			// If resolveValues consist of only a single Deferred, just use that.
			deferred = remaining === 1 ? subordinate : jQuery.Deferred(),

			// Update function for both resolve and progress values
			updateFunc = function( i, contexts, values ) {
				return function( value ) {
					contexts[ i ] = this;
					values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
					if ( values === progressValues ) {
						deferred.notifyWith( contexts, values );

					} else if ( !( --remaining ) ) {
						deferred.resolveWith( contexts, values );
					}
				};
			},

			progressValues, progressContexts, resolveContexts;

		// add listeners to Deferred subordinates; treat others as resolved
		if ( length > 1 ) {
			progressValues = new Array( length );
			progressContexts = new Array( length );
			resolveContexts = new Array( length );
			for ( ; i < length; i++ ) {
				if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
					resolveValues[ i ].promise()
						.progress( updateFunc( i, progressContexts, progressValues ) )
						.done( updateFunc( i, resolveContexts, resolveValues ) )
						.fail( deferred.reject );
				} else {
					--remaining;
				}
			}
		}

		// if we're not waiting on anything, resolve the master
		if ( !remaining ) {
			deferred.resolveWith( resolveContexts, resolveValues );
		}

		return deferred.promise();
	}
} );


// The deferred used on DOM ready
var readyList;

jQuery.fn.ready = function( fn ) {

	// Add the callback
	jQuery.ready.promise().done( fn );

	return this;
};

jQuery.extend( {

	// Is the DOM ready to be used? Set to true once it occurs.
	isReady: false,

	// A counter to track how many items to wait for before
	// the ready event fires. See #6781
	readyWait: 1,

	// Hold (or release) the ready event
	holdReady: function( hold ) {
		if ( hold ) {
			jQuery.readyWait++;
		} else {
			jQuery.ready( true );
		}
	},

	// Handle when the DOM is ready
	ready: function( wait ) {

		// Abort if there are pending holds or we're already ready
		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
			return;
		}

		// Remember that the DOM is ready
		jQuery.isReady = true;

		// If a normal DOM Ready event fired, decrement, and wait if need be
		if ( wait !== true && --jQuery.readyWait > 0 ) {
			return;
		}

		// If there are functions bound, to execute
		readyList.resolveWith( document, [ jQuery ] );

		// Trigger any bound ready events
		if ( jQuery.fn.triggerHandler ) {
			jQuery( document ).triggerHandler( "ready" );
			jQuery( document ).off( "ready" );
		}
	}
} );

/**
 * Clean-up method for dom ready events
 */
function detach() {
	if ( document.addEventListener ) {
		document.removeEventListener( "DOMContentLoaded", completed );
		window.removeEventListener( "load", completed );

	} else {
		document.detachEvent( "onreadystatechange", completed );
		window.detachEvent( "onload", completed );
	}
}

/**
 * The ready event handler and self cleanup method
 */
function completed() {

	// readyState === "complete" is good enough for us to call the dom ready in oldIE
	if ( document.addEventListener ||
		window.event.type === "load" ||
		document.readyState === "complete" ) {

		detach();
		jQuery.ready();
	}
}

jQuery.ready.promise = function( obj ) {
	if ( !readyList ) {

		readyList = jQuery.Deferred();

		// Catch cases where $(document).ready() is called
		// after the browser event has already occurred.
		// Support: IE6-10
		// Older IE sometimes signals "interactive" too soon
		if ( document.readyState === "complete" ||
			( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

			// Handle it asynchronously to allow scripts the opportunity to delay ready
			window.setTimeout( jQuery.ready );

		// Standards-based browsers support DOMContentLoaded
		} else if ( document.addEventListener ) {

			// Use the handy event callback
			document.addEventListener( "DOMContentLoaded", completed );

			// A fallback to window.onload, that will always work
			window.addEventListener( "load", completed );

		// If IE event model is used
		} else {

			// Ensure firing before onload, maybe late but safe also for iframes
			document.attachEvent( "onreadystatechange", completed );

			// A fallback to window.onload, that will always work
			window.attachEvent( "onload", completed );

			// If IE and not a frame
			// continually check to see if the document is ready
			var top = false;

			try {
				top = window.frameElement == null && document.documentElement;
			} catch ( e ) {}

			if ( top && top.doScroll ) {
				( function doScrollCheck() {
					if ( !jQuery.isReady ) {

						try {

							// Use the trick by Diego Perini
							// http://javascript.nwbox.com/IEContentLoaded/
							top.doScroll( "left" );
						} catch ( e ) {
							return window.setTimeout( doScrollCheck, 50 );
						}

						// detach all dom ready events
						detach();

						// and execute any waiting functions
						jQuery.ready();
					}
				} )();
			}
		}
	}
	return readyList.promise( obj );
};

// Kick off the DOM ready check even if the user does not
jQuery.ready.promise();




// Support: IE<9
// Iteration over object's inherited properties before its own
var i;
for ( i in jQuery( support ) ) {
	break;
}
support.ownFirst = i === "0";

// Note: most support tests are defined in their respective modules.
// false until the test is run
support.inlineBlockNeedsLayout = false;

// Execute ASAP in case we need to set body.style.zoom
jQuery( function() {

	// Minified: var a,b,c,d
	var val, div, body, container;

	body = document.getElementsByTagName( "body" )[ 0 ];
	if ( !body || !body.style ) {

		// Return for frameset docs that don't have a body
		return;
	}

	// Setup
	div = document.createElement( "div" );
	container = document.createElement( "div" );
	container.style.cssText = "position:absolute;border:0;width:0;height:0;top:0;left:-9999px";
	body.appendChild( container ).appendChild( div );

	if ( typeof div.style.zoom !== "undefined" ) {

		// Support: IE<8
		// Check if natively block-level elements act like inline-block
		// elements when setting their display to 'inline' and giving
		// them layout
		div.style.cssText = "display:inline;margin:0;border:0;padding:1px;width:1px;zoom:1";

		support.inlineBlockNeedsLayout = val = div.offsetWidth === 3;
		if ( val ) {

			// Prevent IE 6 from affecting layout for positioned elements #11048
			// Prevent IE from shrinking the body in IE 7 mode #12869
			// Support: IE<8
			body.style.zoom = 1;
		}
	}

	body.removeChild( container );
} );


( function() {
	var div = document.createElement( "div" );

	// Support: IE<9
	support.deleteExpando = true;
	try {
		delete div.test;
	} catch ( e ) {
		support.deleteExpando = false;
	}

	// Null elements to avoid leaks in IE.
	div = null;
} )();
var acceptData = function( elem ) {
	var noData = jQuery.noData[ ( elem.nodeName + " " ).toLowerCase() ],
		nodeType = +elem.nodeType || 1;

	// Do not set data on non-element DOM nodes because it will not be cleared (#8335).
	return nodeType !== 1 && nodeType !== 9 ?
		false :

		// Nodes accept data unless otherwise specified; rejection can be conditional
		!noData || noData !== true && elem.getAttribute( "classid" ) === noData;
};




var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
	rmultiDash = /([A-Z])/g;

function dataAttr( elem, key, data ) {

	// If nothing was found internally, try to fetch any
	// data from the HTML5 data-* attribute
	if ( data === undefined && elem.nodeType === 1 ) {

		var name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();

		data = elem.getAttribute( name );

		if ( typeof data === "string" ) {
			try {
				data = data === "true" ? true :
					data === "false" ? false :
					data === "null" ? null :

					// Only convert to a number if it doesn't change the string
					+data + "" === data ? +data :
					rbrace.test( data ) ? jQuery.parseJSON( data ) :
					data;
			} catch ( e ) {}

			// Make sure we set the data so it isn't changed later
			jQuery.data( elem, key, data );

		} else {
			data = undefined;
		}
	}

	return data;
}

// checks a cache object for emptiness
function isEmptyDataObject( obj ) {
	var name;
	for ( name in obj ) {

		// if the public data object is empty, the private is still empty
		if ( name === "data" && jQuery.isEmptyObject( obj[ name ] ) ) {
			continue;
		}
		if ( name !== "toJSON" ) {
			return false;
		}
	}

	return true;
}

function internalData( elem, name, data, pvt /* Internal Use Only */ ) {
	if ( !acceptData( elem ) ) {
		return;
	}

	var ret, thisCache,
		internalKey = jQuery.expando,

		// We have to handle DOM nodes and JS objects differently because IE6-7
		// can't GC object references properly across the DOM-JS boundary
		isNode = elem.nodeType,

		// Only DOM nodes need the global jQuery cache; JS object data is
		// attached directly to the object so GC can occur automatically
		cache = isNode ? jQuery.cache : elem,

		// Only defining an ID for JS objects if its cache already exists allows
		// the code to shortcut on the same path as a DOM node with no cache
		id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;

	// Avoid doing any more work than we need to when trying to get data on an
	// object that has no data at all
	if ( ( !id || !cache[ id ] || ( !pvt && !cache[ id ].data ) ) &&
		data === undefined && typeof name === "string" ) {
		return;
	}

	if ( !id ) {

		// Only DOM nodes need a new unique ID for each element since their data
		// ends up in the global cache
		if ( isNode ) {
			id = elem[ internalKey ] = deletedIds.pop() || jQuery.guid++;
		} else {
			id = internalKey;
		}
	}

	if ( !cache[ id ] ) {

		// Avoid exposing jQuery metadata on plain JS objects when the object
		// is serialized using JSON.stringify
		cache[ id ] = isNode ? {} : { toJSON: jQuery.noop };
	}

	// An object can be passed to jQuery.data instead of a key/value pair; this gets
	// shallow copied over onto the existing cache
	if ( typeof name === "object" || typeof name === "function" ) {
		if ( pvt ) {
			cache[ id ] = jQuery.extend( cache[ id ], name );
		} else {
			cache[ id ].data = jQuery.extend( cache[ id ].data, name );
		}
	}

	thisCache = cache[ id ];

	// jQuery data() is stored in a separate object inside the object's internal data
	// cache in order to avoid key collisions between internal data and user-defined
	// data.
	if ( !pvt ) {
		if ( !thisCache.data ) {
			thisCache.data = {};
		}

		thisCache = thisCache.data;
	}

	if ( data !== undefined ) {
		thisCache[ jQuery.camelCase( name ) ] = data;
	}

	// Check for both converted-to-camel and non-converted data property names
	// If a data property was specified
	if ( typeof name === "string" ) {

		// First Try to find as-is property data
		ret = thisCache[ name ];

		// Test for null|undefined property data
		if ( ret == null ) {

			// Try to find the camelCased property
			ret = thisCache[ jQuery.camelCase( name ) ];
		}
	} else {
		ret = thisCache;
	}

	return ret;
}

function internalRemoveData( elem, name, pvt ) {
	if ( !acceptData( elem ) ) {
		return;
	}

	var thisCache, i,
		isNode = elem.nodeType,

		// See jQuery.data for more information
		cache = isNode ? jQuery.cache : elem,
		id = isNode ? elem[ jQuery.expando ] : jQuery.expando;

	// If there is already no cache entry for this object, there is no
	// purpose in continuing
	if ( !cache[ id ] ) {
		return;
	}

	if ( name ) {

		thisCache = pvt ? cache[ id ] : cache[ id ].data;

		if ( thisCache ) {

			// Support array or space separated string names for data keys
			if ( !jQuery.isArray( name ) ) {

				// try the string as a key before any manipulation
				if ( name in thisCache ) {
					name = [ name ];
				} else {

					// split the camel cased version by spaces unless a key with the spaces exists
					name = jQuery.camelCase( name );
					if ( name in thisCache ) {
						name = [ name ];
					} else {
						name = name.split( " " );
					}
				}
			} else {

				// If "name" is an array of keys...
				// When data is initially created, via ("key", "val") signature,
				// keys will be converted to camelCase.
				// Since there is no way to tell _how_ a key was added, remove
				// both plain key and camelCase key. #12786
				// This will only penalize the array argument path.
				name = name.concat( jQuery.map( name, jQuery.camelCase ) );
			}

			i = name.length;
			while ( i-- ) {
				delete thisCache[ name[ i ] ];
			}

			// If there is no data left in the cache, we want to continue
			// and let the cache object itself get destroyed
			if ( pvt ? !isEmptyDataObject( thisCache ) : !jQuery.isEmptyObject( thisCache ) ) {
				return;
			}
		}
	}

	// See jQuery.data for more information
	if ( !pvt ) {
		delete cache[ id ].data;

		// Don't destroy the parent cache unless the internal data object
		// had been the only thing left in it
		if ( !isEmptyDataObject( cache[ id ] ) ) {
			return;
		}
	}

	// Destroy the cache
	if ( isNode ) {
		jQuery.cleanData( [ elem ], true );

	// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
	/* jshint eqeqeq: false */
	} else if ( support.deleteExpando || cache != cache.window ) {
		/* jshint eqeqeq: true */
		delete cache[ id ];

	// When all else fails, undefined
	} else {
		cache[ id ] = undefined;
	}
}

jQuery.extend( {
	cache: {},

	// The following elements (space-suffixed to avoid Object.prototype collisions)
	// throw uncatchable exceptions if you attempt to set expando properties
	noData: {
		"applet ": true,
		"embed ": true,

		// ...but Flash objects (which have this classid) *can* handle expandos
		"object ": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
	},

	hasData: function( elem ) {
		elem = elem.nodeType ? jQuery.cache[ elem[ jQuery.expando ] ] : elem[ jQuery.expando ];
		return !!elem && !isEmptyDataObject( elem );
	},

	data: function( elem, name, data ) {
		return internalData( elem, name, data );
	},

	removeData: function( elem, name ) {
		return internalRemoveData( elem, name );
	},

	// For internal use only.
	_data: function( elem, name, data ) {
		return internalData( elem, name, data, true );
	},

	_removeData: function( elem, name ) {
		return internalRemoveData( elem, name, true );
	}
} );

jQuery.fn.extend( {
	data: function( key, value ) {
		var i, name, data,
			elem = this[ 0 ],
			attrs = elem && elem.attributes;

		// Special expections of .data basically thwart jQuery.access,
		// so implement the relevant behavior ourselves

		// Gets all values
		if ( key === undefined ) {
			if ( this.length ) {
				data = jQuery.data( elem );

				if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
					i = attrs.length;
					while ( i-- ) {

						// Support: IE11+
						// The attrs elements can be null (#14894)
						if ( attrs[ i ] ) {
							name = attrs[ i ].name;
							if ( name.indexOf( "data-" ) === 0 ) {
								name = jQuery.camelCase( name.slice( 5 ) );
								dataAttr( elem, name, data[ name ] );
							}
						}
					}
					jQuery._data( elem, "parsedAttrs", true );
				}
			}

			return data;
		}

		// Sets multiple values
		if ( typeof key === "object" ) {
			return this.each( function() {
				jQuery.data( this, key );
			} );
		}

		return arguments.length > 1 ?

			// Sets one value
			this.each( function() {
				jQuery.data( this, key, value );
			} ) :

			// Gets one value
			// Try to fetch any internally stored data first
			elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : undefined;
	},

	removeData: function( key ) {
		return this.each( function() {
			jQuery.removeData( this, key );
		} );
	}
} );


jQuery.extend( {
	queue: function( elem, type, data ) {
		var queue;

		if ( elem ) {
			type = ( type || "fx" ) + "queue";
			queue = jQuery._data( elem, type );

			// Speed up dequeue by getting out quickly if this is just a lookup
			if ( data ) {
				if ( !queue || jQuery.isArray( data ) ) {
					queue = jQuery._data( elem, type, jQuery.makeArray( data ) );
				} else {
					queue.push( data );
				}
			}
			return queue || [];
		}
	},

	dequeue: function( elem, type ) {
		type = type || "fx";

		var queue = jQuery.queue( elem, type ),
			startLength = queue.length,
			fn = queue.shift(),
			hooks = jQuery._queueHooks( elem, type ),
			next = function() {
				jQuery.dequeue( elem, type );
			};

		// If the fx queue is dequeued, always remove the progress sentinel
		if ( fn === "inprogress" ) {
			fn = queue.shift();
			startLength--;
		}

		if ( fn ) {

			// Add a progress sentinel to prevent the fx queue from being
			// automatically dequeued
			if ( type === "fx" ) {
				queue.unshift( "inprogress" );
			}

			// clear up the last queue stop function
			delete hooks.stop;
			fn.call( elem, next, hooks );
		}

		if ( !startLength && hooks ) {
			hooks.empty.fire();
		}
	},

	// not intended for public consumption - generates a queueHooks object,
	// or returns the current one
	_queueHooks: function( elem, type ) {
		var key = type + "queueHooks";
		return jQuery._data( elem, key ) || jQuery._data( elem, key, {
			empty: jQuery.Callbacks( "once memory" ).add( function() {
				jQuery._removeData( elem, type + "queue" );
				jQuery._removeData( elem, key );
			} )
		} );
	}
} );

jQuery.fn.extend( {
	queue: function( type, data ) {
		var setter = 2;

		if ( typeof type !== "string" ) {
			data = type;
			type = "fx";
			setter--;
		}

		if ( arguments.length < setter ) {
			return jQuery.queue( this[ 0 ], type );
		}

		return data === undefined ?
			this :
			this.each( function() {
				var queue = jQuery.queue( this, type, data );

				// ensure a hooks for this queue
				jQuery._queueHooks( this, type );

				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
					jQuery.dequeue( this, type );
				}
			} );
	},
	dequeue: function( type ) {
		return this.each( function() {
			jQuery.dequeue( this, type );
		} );
	},
	clearQueue: function( type ) {
		return this.queue( type || "fx", [] );
	},

	// Get a promise resolved when queues of a certain type
	// are emptied (fx is the type by default)
	promise: function( type, obj ) {
		var tmp,
			count = 1,
			defer = jQuery.Deferred(),
			elements = this,
			i = this.length,
			resolve = function() {
				if ( !( --count ) ) {
					defer.resolveWith( elements, [ elements ] );
				}
			};

		if ( typeof type !== "string" ) {
			obj = type;
			type = undefined;
		}
		type = type || "fx";

		while ( i-- ) {
			tmp = jQuery._data( elements[ i ], type + "queueHooks" );
			if ( tmp && tmp.empty ) {
				count++;
				tmp.empty.add( resolve );
			}
		}
		resolve();
		return defer.promise( obj );
	}
} );


( function() {
	var shrinkWrapBlocksVal;

	support.shrinkWrapBlocks = function() {
		if ( shrinkWrapBlocksVal != null ) {
			return shrinkWrapBlocksVal;
		}

		// Will be changed later if needed.
		shrinkWrapBlocksVal = false;

		// Minified: var b,c,d
		var div, body, container;

		body = document.getElementsByTagName( "body" )[ 0 ];
		if ( !body || !body.style ) {

			// Test fired too early or in an unsupported environment, exit.
			return;
		}

		// Setup
		div = document.createElement( "div" );
		container = document.createElement( "div" );
		container.style.cssText = "position:absolute;border:0;width:0;height:0;top:0;left:-9999px";
		body.appendChild( container ).appendChild( div );

		// Support: IE6
		// Check if elements with layout shrink-wrap their children
		if ( typeof div.style.zoom !== "undefined" ) {

			// Reset CSS: box-sizing; display; margin; border
			div.style.cssText =

				// Support: Firefox<29, Android 2.3
				// Vendor-prefix box-sizing
				"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
				"box-sizing:content-box;display:block;margin:0;border:0;" +
				"padding:1px;width:1px;zoom:1";
			div.appendChild( document.createElement( "div" ) ).style.width = "5px";
			shrinkWrapBlocksVal = div.offsetWidth !== 3;
		}

		body.removeChild( container );

		return shrinkWrapBlocksVal;
	};

} )();
var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;

var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

var isHidden = function( elem, el ) {

		// isHidden might be called from jQuery#filter function;
		// in that case, element will be second argument
		elem = el || elem;
		return jQuery.css( elem, "display" ) === "none" ||
			!jQuery.contains( elem.ownerDocument, elem );
	};



function adjustCSS( elem, prop, valueParts, tween ) {
	var adjusted,
		scale = 1,
		maxIterations = 20,
		currentValue = tween ?
			function() { return tween.cur(); } :
			function() { return jQuery.css( elem, prop, "" ); },
		initial = currentValue(),
		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

		// Starting value computation is required for potential unit mismatches
		initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
			rcssNum.exec( jQuery.css( elem, prop ) );

	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {

		// Trust units reported by jQuery.css
		unit = unit || initialInUnit[ 3 ];

		// Make sure we update the tween properties later on
		valueParts = valueParts || [];

		// Iteratively approximate from a nonzero starting point
		initialInUnit = +initial || 1;

		do {

			// If previous iteration zeroed out, double until we get *something*.
			// Use string for doubling so we don't accidentally see scale as unchanged below
			scale = scale || ".5";

			// Adjust and apply
			initialInUnit = initialInUnit / scale;
			jQuery.style( elem, prop, initialInUnit + unit );

		// Update scale, tolerating zero or NaN from tween.cur()
		// Break the loop if scale is unchanged or perfect, or if we've just had enough.
		} while (
			scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
		);
	}

	if ( valueParts ) {
		initialInUnit = +initialInUnit || +initial || 0;

		// Apply relative offset (+=/-=) if specified
		adjusted = valueParts[ 1 ] ?
			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
			+valueParts[ 2 ];
		if ( tween ) {
			tween.unit = unit;
			tween.start = initialInUnit;
			tween.end = adjusted;
		}
	}
	return adjusted;
}


// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
	var i = 0,
		length = elems.length,
		bulk = key == null;

	// Sets many values
	if ( jQuery.type( key ) === "object" ) {
		chainable = true;
		for ( i in key ) {
			access( elems, fn, i, key[ i ], true, emptyGet, raw );
		}

	// Sets one value
	} else if ( value !== undefined ) {
		chainable = true;

		if ( !jQuery.isFunction( value ) ) {
			raw = true;
		}

		if ( bulk ) {

			// Bulk operations run against the entire set
			if ( raw ) {
				fn.call( elems, value );
				fn = null;

			// ...except when executing function values
			} else {
				bulk = fn;
				fn = function( elem, key, value ) {
					return bulk.call( jQuery( elem ), value );
				};
			}
		}

		if ( fn ) {
			for ( ; i < length; i++ ) {
				fn(
					elems[ i ],
					key,
					raw ? value : value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	return chainable ?
		elems :

		// Gets
		bulk ?
			fn.call( elems ) :
			length ? fn( elems[ 0 ], key ) : emptyGet;
};
var rcheckableType = ( /^(?:checkbox|radio)$/i );

var rtagName = ( /<([\w:-]+)/ );

var rscriptType = ( /^$|\/(?:java|ecma)script/i );

var rleadingWhitespace = ( /^\s+/ );

var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|" +
		"details|dialog|figcaption|figure|footer|header|hgroup|main|" +
		"mark|meter|nav|output|picture|progress|section|summary|template|time|video";



function createSafeFragment( document ) {
	var list = nodeNames.split( "|" ),
		safeFrag = document.createDocumentFragment();

	if ( safeFrag.createElement ) {
		while ( list.length ) {
			safeFrag.createElement(
				list.pop()
			);
		}
	}
	return safeFrag;
}


( function() {
	var div = document.createElement( "div" ),
		fragment = document.createDocumentFragment(),
		input = document.createElement( "input" );

	// Setup
	div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";

	// IE strips leading whitespace when .innerHTML is used
	support.leadingWhitespace = div.firstChild.nodeType === 3;

	// Make sure that tbody elements aren't automatically inserted
	// IE will insert them into empty tables
	support.tbody = !div.getElementsByTagName( "tbody" ).length;

	// Make sure that link elements get serialized correctly by innerHTML
	// This requires a wrapper element in IE
	support.htmlSerialize = !!div.getElementsByTagName( "link" ).length;

	// Makes sure cloning an html5 element does not cause problems
	// Where outerHTML is undefined, this still works
	support.html5Clone =
		document.createElement( "nav" ).cloneNode( true ).outerHTML !== "<:nav></:nav>";

	// Check if a disconnected checkbox will retain its checked
	// value of true after appended to the DOM (IE6/7)
	input.type = "checkbox";
	input.checked = true;
	fragment.appendChild( input );
	support.appendChecked = input.checked;

	// Make sure textarea (and checkbox) defaultValue is properly cloned
	// Support: IE6-IE11+
	div.innerHTML = "<textarea>x</textarea>";
	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;

	// #11217 - WebKit loses check when the name is after the checked attribute
	fragment.appendChild( div );

	// Support: Windows Web Apps (WWA)
	// `name` and `type` must use .setAttribute for WWA (#14901)
	input = document.createElement( "input" );
	input.setAttribute( "type", "radio" );
	input.setAttribute( "checked", "checked" );
	input.setAttribute( "name", "t" );

	div.appendChild( input );

	// Support: Safari 5.1, iOS 5.1, Android 4.x, Android 2.3
	// old WebKit doesn't clone checked state correctly in fragments
	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

	// Support: IE<9
	// Cloned elements keep attachEvent handlers, we use addEventListener on IE9+
	support.noCloneEvent = !!div.addEventListener;

	// Support: IE<9
	// Since attributes and properties are the same in IE,
	// cleanData must set properties to undefined rather than use removeAttribute
	div[ jQuery.expando ] = 1;
	support.attributes = !div.getAttribute( jQuery.expando );
} )();


// We have to close these tags to support XHTML (#13200)
var wrapMap = {
	option: [ 1, "<select multiple='multiple'>", "</select>" ],
	legend: [ 1, "<fieldset>", "</fieldset>" ],
	area: [ 1, "<map>", "</map>" ],

	// Support: IE8
	param: [ 1, "<object>", "</object>" ],
	thead: [ 1, "<table>", "</table>" ],
	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
	col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

	// IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
	// unless wrapped in a div with non-breaking characters in front of it.
	_default: support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>" ]
};

// Support: IE8-IE9
wrapMap.optgroup = wrapMap.option;

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;


function getAll( context, tag ) {
	var elems, elem,
		i = 0,
		found = typeof context.getElementsByTagName !== "undefined" ?
			context.getElementsByTagName( tag || "*" ) :
			typeof context.querySelectorAll !== "undefined" ?
				context.querySelectorAll( tag || "*" ) :
				undefined;

	if ( !found ) {
		for ( found = [], elems = context.childNodes || context;
			( elem = elems[ i ] ) != null;
			i++
		) {
			if ( !tag || jQuery.nodeName( elem, tag ) ) {
				found.push( elem );
			} else {
				jQuery.merge( found, getAll( elem, tag ) );
			}
		}
	}

	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
		jQuery.merge( [ context ], found ) :
		found;
}


// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
	var elem,
		i = 0;
	for ( ; ( elem = elems[ i ] ) != null; i++ ) {
		jQuery._data(
			elem,
			"globalEval",
			!refElements || jQuery._data( refElements[ i ], "globalEval" )
		);
	}
}


var rhtml = /<|&#?\w+;/,
	rtbody = /<tbody/i;

function fixDefaultChecked( elem ) {
	if ( rcheckableType.test( elem.type ) ) {
		elem.defaultChecked = elem.checked;
	}
}

function buildFragment( elems, context, scripts, selection, ignored ) {
	var j, elem, contains,
		tmp, tag, tbody, wrap,
		l = elems.length,

		// Ensure a safe fragment
		safe = createSafeFragment( context ),

		nodes = [],
		i = 0;

	for ( ; i < l; i++ ) {
		elem = elems[ i ];

		if ( elem || elem === 0 ) {

			// Add nodes directly
			if ( jQuery.type( elem ) === "object" ) {
				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

			// Convert non-html into a text node
			} else if ( !rhtml.test( elem ) ) {
				nodes.push( context.createTextNode( elem ) );

			// Convert html into DOM nodes
			} else {
				tmp = tmp || safe.appendChild( context.createElement( "div" ) );

				// Deserialize a standard representation
				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
				wrap = wrapMap[ tag ] || wrapMap._default;

				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];

				// Descend through wrappers to the right content
				j = wrap[ 0 ];
				while ( j-- ) {
					tmp = tmp.lastChild;
				}

				// Manually add leading whitespace removed by IE
				if ( !support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
					nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[ 0 ] ) );
				}

				// Remove IE's autoinserted <tbody> from table fragments
				if ( !support.tbody ) {

					// String was a <table>, *may* have spurious <tbody>
					elem = tag === "table" && !rtbody.test( elem ) ?
						tmp.firstChild :

						// String was a bare <thead> or <tfoot>
						wrap[ 1 ] === "<table>" && !rtbody.test( elem ) ?
							tmp :
							0;

					j = elem && elem.childNodes.length;
					while ( j-- ) {
						if ( jQuery.nodeName( ( tbody = elem.childNodes[ j ] ), "tbody" ) &&
							!tbody.childNodes.length ) {

							elem.removeChild( tbody );
						}
					}
				}

				jQuery.merge( nodes, tmp.childNodes );

				// Fix #12392 for WebKit and IE > 9
				tmp.textContent = "";

				// Fix #12392 for oldIE
				while ( tmp.firstChild ) {
					tmp.removeChild( tmp.firstChild );
				}

				// Remember the top-level container for proper cleanup
				tmp = safe.lastChild;
			}
		}
	}

	// Fix #11356: Clear elements from fragment
	if ( tmp ) {
		safe.removeChild( tmp );
	}

	// Reset defaultChecked for any radios and checkboxes
	// about to be appended to the DOM in IE 6/7 (#8060)
	if ( !support.appendChecked ) {
		jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
	}

	i = 0;
	while ( ( elem = nodes[ i++ ] ) ) {

		// Skip elements already in the context collection (trac-4087)
		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
			if ( ignored ) {
				ignored.push( elem );
			}

			continue;
		}

		contains = jQuery.contains( elem.ownerDocument, elem );

		// Append to fragment
		tmp = getAll( safe.appendChild( elem ), "script" );

		// Preserve script evaluation history
		if ( contains ) {
			setGlobalEval( tmp );
		}

		// Capture executables
		if ( scripts ) {
			j = 0;
			while ( ( elem = tmp[ j++ ] ) ) {
				if ( rscriptType.test( elem.type || "" ) ) {
					scripts.push( elem );
				}
			}
		}
	}

	tmp = null;

	return safe;
}


( function() {
	var i, eventName,
		div = document.createElement( "div" );

	// Support: IE<9 (lack submit/change bubble), Firefox (lack focus(in | out) events)
	for ( i in { submit: true, change: true, focusin: true } ) {
		eventName = "on" + i;

		if ( !( support[ i ] = eventName in window ) ) {

			// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
			div.setAttribute( eventName, "t" );
			support[ i ] = div.attributes[ eventName ].expando === false;
		}
	}

	// Null elements to avoid leaks in IE.
	div = null;
} )();


var rformElems = /^(?:input|select|textarea)$/i,
	rkeyEvent = /^key/,
	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
	rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

function returnTrue() {
	return true;
}

function returnFalse() {
	return false;
}

// Support: IE9
// See #13393 for more info
function safeActiveElement() {
	try {
		return document.activeElement;
	} catch ( err ) { }
}

function on( elem, types, selector, data, fn, one ) {
	var origFn, type;

	// Types can be a map of types/handlers
	if ( typeof types === "object" ) {

		// ( types-Object, selector, data )
		if ( typeof selector !== "string" ) {

			// ( types-Object, data )
			data = data || selector;
			selector = undefined;
		}
		for ( type in types ) {
			on( elem, type, selector, data, types[ type ], one );
		}
		return elem;
	}

	if ( data == null && fn == null ) {

		// ( types, fn )
		fn = selector;
		data = selector = undefined;
	} else if ( fn == null ) {
		if ( typeof selector === "string" ) {

			// ( types, selector, fn )
			fn = data;
			data = undefined;
		} else {

			// ( types, data, fn )
			fn = data;
			data = selector;
			selector = undefined;
		}
	}
	if ( fn === false ) {
		fn = returnFalse;
	} else if ( !fn ) {
		return elem;
	}

	if ( one === 1 ) {
		origFn = fn;
		fn = function( event ) {

			// Can use an empty set, since event contains the info
			jQuery().off( event );
			return origFn.apply( this, arguments );
		};

		// Use same guid so caller can remove using origFn
		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
	}
	return elem.each( function() {
		jQuery.event.add( this, types, fn, data, selector );
	} );
}

/*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
jQuery.event = {

	global: {},

	add: function( elem, types, handler, data, selector ) {
		var tmp, events, t, handleObjIn,
			special, eventHandle, handleObj,
			handlers, type, namespaces, origType,
			elemData = jQuery._data( elem );

		// Don't attach events to noData or text/comment nodes (but allow plain objects)
		if ( !elemData ) {
			return;
		}

		// Caller can pass in an object of custom data in lieu of the handler
		if ( handler.handler ) {
			handleObjIn = handler;
			handler = handleObjIn.handler;
			selector = handleObjIn.selector;
		}

		// Make sure that the handler has a unique ID, used to find/remove it later
		if ( !handler.guid ) {
			handler.guid = jQuery.guid++;
		}

		// Init the element's event structure and main handler, if this is the first
		if ( !( events = elemData.events ) ) {
			events = elemData.events = {};
		}
		if ( !( eventHandle = elemData.handle ) ) {
			eventHandle = elemData.handle = function( e ) {

				// Discard the second event of a jQuery.event.trigger() and
				// when an event is called after a page has unloaded
				return typeof jQuery !== "undefined" &&
					( !e || jQuery.event.triggered !== e.type ) ?
					jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
					undefined;
			};

			// Add elem as a property of the handle fn to prevent a memory leak
			// with IE non-native events
			eventHandle.elem = elem;
		}

		// Handle multiple events separated by a space
		types = ( types || "" ).match( rnotwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// There *must* be a type, no attaching namespace-only handlers
			if ( !type ) {
				continue;
			}

			// If event changes its type, use the special event handlers for the changed type
			special = jQuery.event.special[ type ] || {};

			// If selector defined, determine special event api type, otherwise given type
			type = ( selector ? special.delegateType : special.bindType ) || type;

			// Update special based on newly reset type
			special = jQuery.event.special[ type ] || {};

			// handleObj is passed to all event handlers
			handleObj = jQuery.extend( {
				type: type,
				origType: origType,
				data: data,
				handler: handler,
				guid: handler.guid,
				selector: selector,
				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
				namespace: namespaces.join( "." )
			}, handleObjIn );

			// Init the event handler queue if we're the first
			if ( !( handlers = events[ type ] ) ) {
				handlers = events[ type ] = [];
				handlers.delegateCount = 0;

				// Only use addEventListener/attachEvent if the special events handler returns false
				if ( !special.setup ||
					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

					// Bind the global event handler to the element
					if ( elem.addEventListener ) {
						elem.addEventListener( type, eventHandle, false );

					} else if ( elem.attachEvent ) {
						elem.attachEvent( "on" + type, eventHandle );
					}
				}
			}

			if ( special.add ) {
				special.add.call( elem, handleObj );

				if ( !handleObj.handler.guid ) {
					handleObj.handler.guid = handler.guid;
				}
			}

			// Add to the element's handler list, delegates in front
			if ( selector ) {
				handlers.splice( handlers.delegateCount++, 0, handleObj );
			} else {
				handlers.push( handleObj );
			}

			// Keep track of which events have ever been used, for event optimization
			jQuery.event.global[ type ] = true;
		}

		// Nullify elem to prevent memory leaks in IE
		elem = null;
	},

	// Detach an event or set of events from an element
	remove: function( elem, types, handler, selector, mappedTypes ) {
		var j, handleObj, tmp,
			origCount, t, events,
			special, handlers, type,
			namespaces, origType,
			elemData = jQuery.hasData( elem ) && jQuery._data( elem );

		if ( !elemData || !( events = elemData.events ) ) {
			return;
		}

		// Once for each type.namespace in types; type may be omitted
		types = ( types || "" ).match( rnotwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// Unbind all events (on this namespace, if provided) for the element
			if ( !type ) {
				for ( type in events ) {
					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
				}
				continue;
			}

			special = jQuery.event.special[ type ] || {};
			type = ( selector ? special.delegateType : special.bindType ) || type;
			handlers = events[ type ] || [];
			tmp = tmp[ 2 ] &&
				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

			// Remove matching events
			origCount = j = handlers.length;
			while ( j-- ) {
				handleObj = handlers[ j ];

				if ( ( mappedTypes || origType === handleObj.origType ) &&
					( !handler || handler.guid === handleObj.guid ) &&
					( !tmp || tmp.test( handleObj.namespace ) ) &&
					( !selector || selector === handleObj.selector ||
						selector === "**" && handleObj.selector ) ) {
					handlers.splice( j, 1 );

					if ( handleObj.selector ) {
						handlers.delegateCount--;
					}
					if ( special.remove ) {
						special.remove.call( elem, handleObj );
					}
				}
			}

			// Remove generic event handler if we removed something and no more handlers exist
			// (avoids potential for endless recursion during removal of special event handlers)
			if ( origCount && !handlers.length ) {
				if ( !special.teardown ||
					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {

					jQuery.removeEvent( elem, type, elemData.handle );
				}

				delete events[ type ];
			}
		}

		// Remove the expando if it's no longer used
		if ( jQuery.isEmptyObject( events ) ) {
			delete elemData.handle;

			// removeData also checks for emptiness and clears the expando if empty
			// so use it instead of delete
			jQuery._removeData( elem, "events" );
		}
	},

	trigger: function( event, data, elem, onlyHandlers ) {
		var handle, ontype, cur,
			bubbleType, special, tmp, i,
			eventPath = [ elem || document ],
			type = hasOwn.call( event, "type" ) ? event.type : event,
			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

		cur = tmp = elem = elem || document;

		// Don't do events on text and comment nodes
		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
			return;
		}

		// focus/blur morphs to focusin/out; ensure we're not firing them right now
		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
			return;
		}

		if ( type.indexOf( "." ) > -1 ) {

			// Namespaced trigger; create a regexp to match event type in handle()
			namespaces = type.split( "." );
			type = namespaces.shift();
			namespaces.sort();
		}
		ontype = type.indexOf( ":" ) < 0 && "on" + type;

		// Caller can pass in a jQuery.Event object, Object, or just an event type string
		event = event[ jQuery.expando ] ?
			event :
			new jQuery.Event( type, typeof event === "object" && event );

		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
		event.isTrigger = onlyHandlers ? 2 : 3;
		event.namespace = namespaces.join( "." );
		event.rnamespace = event.namespace ?
			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
			null;

		// Clean up the event in case it is being reused
		event.result = undefined;
		if ( !event.target ) {
			event.target = elem;
		}

		// Clone any incoming data and prepend the event, creating the handler arg list
		data = data == null ?
			[ event ] :
			jQuery.makeArray( data, [ event ] );

		// Allow special events to draw outside the lines
		special = jQuery.event.special[ type ] || {};
		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
			return;
		}

		// Determine event propagation path in advance, per W3C events spec (#9951)
		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
		if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {

			bubbleType = special.delegateType || type;
			if ( !rfocusMorph.test( bubbleType + type ) ) {
				cur = cur.parentNode;
			}
			for ( ; cur; cur = cur.parentNode ) {
				eventPath.push( cur );
				tmp = cur;
			}

			// Only add window if we got to document (e.g., not plain obj or detached DOM)
			if ( tmp === ( elem.ownerDocument || document ) ) {
				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
			}
		}

		// Fire handlers on the event path
		i = 0;
		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {

			event.type = i > 1 ?
				bubbleType :
				special.bindType || type;

			// jQuery handler
			handle = ( jQuery._data( cur, "events" ) || {} )[ event.type ] &&
				jQuery._data( cur, "handle" );

			if ( handle ) {
				handle.apply( cur, data );
			}

			// Native handler
			handle = ontype && cur[ ontype ];
			if ( handle && handle.apply && acceptData( cur ) ) {
				event.result = handle.apply( cur, data );
				if ( event.result === false ) {
					event.preventDefault();
				}
			}
		}
		event.type = type;

		// If nobody prevented the default action, do it now
		if ( !onlyHandlers && !event.isDefaultPrevented() ) {

			if (
				( !special._default ||
				 special._default.apply( eventPath.pop(), data ) === false
				) && acceptData( elem )
			) {

				// Call a native DOM method on the target with the same name name as the event.
				// Can't use an .isFunction() check here because IE6/7 fails that test.
				// Don't do default actions on window, that's where global variables be (#6170)
				if ( ontype && elem[ type ] && !jQuery.isWindow( elem ) ) {

					// Don't re-trigger an onFOO event when we call its FOO() method
					tmp = elem[ ontype ];

					if ( tmp ) {
						elem[ ontype ] = null;
					}

					// Prevent re-triggering of the same event, since we already bubbled it above
					jQuery.event.triggered = type;
					try {
						elem[ type ]();
					} catch ( e ) {

						// IE<9 dies on focus/blur to hidden element (#1486,#12518)
						// only reproducible on winXP IE8 native, not IE9 in IE8 mode
					}
					jQuery.event.triggered = undefined;

					if ( tmp ) {
						elem[ ontype ] = tmp;
					}
				}
			}
		}

		return event.result;
	},

	dispatch: function( event ) {

		// Make a writable jQuery.Event from the native event object
		event = jQuery.event.fix( event );

		var i, j, ret, matched, handleObj,
			handlerQueue = [],
			args = slice.call( arguments ),
			handlers = ( jQuery._data( this, "events" ) || {} )[ event.type ] || [],
			special = jQuery.event.special[ event.type ] || {};

		// Use the fix-ed jQuery.Event rather than the (read-only) native event
		args[ 0 ] = event;
		event.delegateTarget = this;

		// Call the preDispatch hook for the mapped type, and let it bail if desired
		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
			return;
		}

		// Determine handlers
		handlerQueue = jQuery.event.handlers.call( this, event, handlers );

		// Run delegates first; they may want to stop propagation beneath us
		i = 0;
		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
			event.currentTarget = matched.elem;

			j = 0;
			while ( ( handleObj = matched.handlers[ j++ ] ) &&
				!event.isImmediatePropagationStopped() ) {

				// Triggered event must either 1) have no namespace, or 2) have namespace(s)
				// a subset or equal to those in the bound event (both can have no namespace).
				if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {

					event.handleObj = handleObj;
					event.data = handleObj.data;

					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
						handleObj.handler ).apply( matched.elem, args );

					if ( ret !== undefined ) {
						if ( ( event.result = ret ) === false ) {
							event.preventDefault();
							event.stopPropagation();
						}
					}
				}
			}
		}

		// Call the postDispatch hook for the mapped type
		if ( special.postDispatch ) {
			special.postDispatch.call( this, event );
		}

		return event.result;
	},

	handlers: function( event, handlers ) {
		var i, matches, sel, handleObj,
			handlerQueue = [],
			delegateCount = handlers.delegateCount,
			cur = event.target;

		// Support (at least): Chrome, IE9
		// Find delegate handlers
		// Black-hole SVG <use> instance trees (#13180)
		//
		// Support: Firefox<=42+
		// Avoid non-left-click in FF but don't block IE radio events (#3861, gh-2343)
		if ( delegateCount && cur.nodeType &&
			( event.type !== "click" || isNaN( event.button ) || event.button < 1 ) ) {

			/* jshint eqeqeq: false */
			for ( ; cur != this; cur = cur.parentNode || this ) {
				/* jshint eqeqeq: true */

				// Don't check non-elements (#13208)
				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
				if ( cur.nodeType === 1 && ( cur.disabled !== true || event.type !== "click" ) ) {
					matches = [];
					for ( i = 0; i < delegateCount; i++ ) {
						handleObj = handlers[ i ];

						// Don't conflict with Object.prototype properties (#13203)
						sel = handleObj.selector + " ";

						if ( matches[ sel ] === undefined ) {
							matches[ sel ] = handleObj.needsContext ?
								jQuery( sel, this ).index( cur ) > -1 :
								jQuery.find( sel, this, null, [ cur ] ).length;
						}
						if ( matches[ sel ] ) {
							matches.push( handleObj );
						}
					}
					if ( matches.length ) {
						handlerQueue.push( { elem: cur, handlers: matches } );
					}
				}
			}
		}

		// Add the remaining (directly-bound) handlers
		if ( delegateCount < handlers.length ) {
			handlerQueue.push( { elem: this, handlers: handlers.slice( delegateCount ) } );
		}

		return handlerQueue;
	},

	fix: function( event ) {
		if ( event[ jQuery.expando ] ) {
			return event;
		}

		// Create a writable copy of the event object and normalize some properties
		var i, prop, copy,
			type = event.type,
			originalEvent = event,
			fixHook = this.fixHooks[ type ];

		if ( !fixHook ) {
			this.fixHooks[ type ] = fixHook =
				rmouseEvent.test( type ) ? this.mouseHooks :
				rkeyEvent.test( type ) ? this.keyHooks :
				{};
		}
		copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;

		event = new jQuery.Event( originalEvent );

		i = copy.length;
		while ( i-- ) {
			prop = copy[ i ];
			event[ prop ] = originalEvent[ prop ];
		}

		// Support: IE<9
		// Fix target property (#1925)
		if ( !event.target ) {
			event.target = originalEvent.srcElement || document;
		}

		// Support: Safari 6-8+
		// Target should not be a text node (#504, #13143)
		if ( event.target.nodeType === 3 ) {
			event.target = event.target.parentNode;
		}

		// Support: IE<9
		// For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
		event.metaKey = !!event.metaKey;

		return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
	},

	// Includes some event props shared by KeyEvent and MouseEvent
	props: ( "altKey bubbles cancelable ctrlKey currentTarget detail eventPhase " +
		"metaKey relatedTarget shiftKey target timeStamp view which" ).split( " " ),

	fixHooks: {},

	keyHooks: {
		props: "char charCode key keyCode".split( " " ),
		filter: function( event, original ) {

			// Add which for key events
			if ( event.which == null ) {
				event.which = original.charCode != null ? original.charCode : original.keyCode;
			}

			return event;
		}
	},

	mouseHooks: {
		props: ( "button buttons clientX clientY fromElement offsetX offsetY " +
			"pageX pageY screenX screenY toElement" ).split( " " ),
		filter: function( event, original ) {
			var body, eventDoc, doc,
				button = original.button,
				fromElement = original.fromElement;

			// Calculate pageX/Y if missing and clientX/Y available
			if ( event.pageX == null && original.clientX != null ) {
				eventDoc = event.target.ownerDocument || document;
				doc = eventDoc.documentElement;
				body = eventDoc.body;

				event.pageX = original.clientX +
					( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) -
					( doc && doc.clientLeft || body && body.clientLeft || 0 );
				event.pageY = original.clientY +
					( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) -
					( doc && doc.clientTop  || body && body.clientTop  || 0 );
			}

			// Add relatedTarget, if necessary
			if ( !event.relatedTarget && fromElement ) {
				event.relatedTarget = fromElement === event.target ?
					original.toElement :
					fromElement;
			}

			// Add which for click: 1 === left; 2 === middle; 3 === right
			// Note: button is not normalized, so don't use it
			if ( !event.which && button !== undefined ) {
				event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
			}

			return event;
		}
	},

	special: {
		load: {

			// Prevent triggered image.load events from bubbling to window.load
			noBubble: true
		},
		focus: {

			// Fire native event if possible so blur/focus sequence is correct
			trigger: function() {
				if ( this !== safeActiveElement() && this.focus ) {
					try {
						this.focus();
						return false;
					} catch ( e ) {

						// Support: IE<9
						// If we error on focus to hidden element (#1486, #12518),
						// let .trigger() run the handlers
					}
				}
			},
			delegateType: "focusin"
		},
		blur: {
			trigger: function() {
				if ( this === safeActiveElement() && this.blur ) {
					this.blur();
					return false;
				}
			},
			delegateType: "focusout"
		},
		click: {

			// For checkbox, fire native event so checked state will be right
			trigger: function() {
				if ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
					this.click();
					return false;
				}
			},

			// For cross-browser consistency, don't fire native .click() on links
			_default: function( event ) {
				return jQuery.nodeName( event.target, "a" );
			}
		},

		beforeunload: {
			postDispatch: function( event ) {

				// Support: Firefox 20+
				// Firefox doesn't alert if the returnValue field is not set.
				if ( event.result !== undefined && event.originalEvent ) {
					event.originalEvent.returnValue = event.result;
				}
			}
		}
	},

	// Piggyback on a donor event to simulate a different one
	simulate: function( type, elem, event ) {
		var e = jQuery.extend(
			new jQuery.Event(),
			event,
			{
				type: type,
				isSimulated: true

				// Previously, `originalEvent: {}` was set here, so stopPropagation call
				// would not be triggered on donor event, since in our own
				// jQuery.event.stopPropagation function we had a check for existence of
				// originalEvent.stopPropagation method, so, consequently it would be a noop.
				//
				// Guard for simulated events was moved to jQuery.event.stopPropagation function
				// since `originalEvent` should point to the original event for the
				// constancy with other events and for more focused logic
			}
		);

		jQuery.event.trigger( e, null, elem );

		if ( e.isDefaultPrevented() ) {
			event.preventDefault();
		}
	}
};

jQuery.removeEvent = document.removeEventListener ?
	function( elem, type, handle ) {

		// This "if" is needed for plain objects
		if ( elem.removeEventListener ) {
			elem.removeEventListener( type, handle );
		}
	} :
	function( elem, type, handle ) {
		var name = "on" + type;

		if ( elem.detachEvent ) {

			// #8545, #7054, preventing memory leaks for custom events in IE6-8
			// detachEvent needed property on element, by name of that event,
			// to properly expose it to GC
			if ( typeof elem[ name ] === "undefined" ) {
				elem[ name ] = null;
			}

			elem.detachEvent( name, handle );
		}
	};

jQuery.Event = function( src, props ) {

	// Allow instantiation without the 'new' keyword
	if ( !( this instanceof jQuery.Event ) ) {
		return new jQuery.Event( src, props );
	}

	// Event object
	if ( src && src.type ) {
		this.originalEvent = src;
		this.type = src.type;

		// Events bubbling up the document may have been marked as prevented
		// by a handler lower down the tree; reflect the correct value.
		this.isDefaultPrevented = src.defaultPrevented ||
				src.defaultPrevented === undefined &&

				// Support: IE < 9, Android < 4.0
				src.returnValue === false ?
			returnTrue :
			returnFalse;

	// Event type
	} else {
		this.type = src;
	}

	// Put explicitly provided properties onto the event object
	if ( props ) {
		jQuery.extend( this, props );
	}

	// Create a timestamp if incoming event doesn't have one
	this.timeStamp = src && src.timeStamp || jQuery.now();

	// Mark it as fixed
	this[ jQuery.expando ] = true;
};

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
	constructor: jQuery.Event,
	isDefaultPrevented: returnFalse,
	isPropagationStopped: returnFalse,
	isImmediatePropagationStopped: returnFalse,

	preventDefault: function() {
		var e = this.originalEvent;

		this.isDefaultPrevented = returnTrue;
		if ( !e ) {
			return;
		}

		// If preventDefault exists, run it on the original event
		if ( e.preventDefault ) {
			e.preventDefault();

		// Support: IE
		// Otherwise set the returnValue property of the original event to false
		} else {
			e.returnValue = false;
		}
	},
	stopPropagation: function() {
		var e = this.originalEvent;

		this.isPropagationStopped = returnTrue;

		if ( !e || this.isSimulated ) {
			return;
		}

		// If stopPropagation exists, run it on the original event
		if ( e.stopPropagation ) {
			e.stopPropagation();
		}

		// Support: IE
		// Set the cancelBubble property of the original event to true
		e.cancelBubble = true;
	},
	stopImmediatePropagation: function() {
		var e = this.originalEvent;

		this.isImmediatePropagationStopped = returnTrue;

		if ( e && e.stopImmediatePropagation ) {
			e.stopImmediatePropagation();
		}

		this.stopPropagation();
	}
};

// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://code.google.com/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( {
	mouseenter: "mouseover",
	mouseleave: "mouseout",
	pointerenter: "pointerover",
	pointerleave: "pointerout"
}, function( orig, fix ) {
	jQuery.event.special[ orig ] = {
		delegateType: fix,
		bindType: fix,

		handle: function( event ) {
			var ret,
				target = this,
				related = event.relatedTarget,
				handleObj = event.handleObj;

			// For mouseenter/leave call the handler if related is outside the target.
			// NB: No relatedTarget if the mouse left/entered the browser window
			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
				event.type = handleObj.origType;
				ret = handleObj.handler.apply( this, arguments );
				event.type = fix;
			}
			return ret;
		}
	};
} );

// IE submit delegation
if ( !support.submit ) {

	jQuery.event.special.submit = {
		setup: function() {

			// Only need this for delegated form submit events
			if ( jQuery.nodeName( this, "form" ) ) {
				return false;
			}

			// Lazy-add a submit handler when a descendant form may potentially be submitted
			jQuery.event.add( this, "click._submit keypress._submit", function( e ) {

				// Node name check avoids a VML-related crash in IE (#9807)
				var elem = e.target,
					form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ?

						// Support: IE <=8
						// We use jQuery.prop instead of elem.form
						// to allow fixing the IE8 delegated submit issue (gh-2332)
						// by 3rd party polyfills/workarounds.
						jQuery.prop( elem, "form" ) :
						undefined;

				if ( form && !jQuery._data( form, "submit" ) ) {
					jQuery.event.add( form, "submit._submit", function( event ) {
						event._submitBubble = true;
					} );
					jQuery._data( form, "submit", true );
				}
			} );

			// return undefined since we don't need an event listener
		},

		postDispatch: function( event ) {

			// If form was submitted by the user, bubble the event up the tree
			if ( event._submitBubble ) {
				delete event._submitBubble;
				if ( this.parentNode && !event.isTrigger ) {
					jQuery.event.simulate( "submit", this.parentNode, event );
				}
			}
		},

		teardown: function() {

			// Only need this for delegated form submit events
			if ( jQuery.nodeName( this, "form" ) ) {
				return false;
			}

			// Remove delegated handlers; cleanData eventually reaps submit handlers attached above
			jQuery.event.remove( this, "._submit" );
		}
	};
}

// IE change delegation and checkbox/radio fix
if ( !support.change ) {

	jQuery.event.special.change = {

		setup: function() {

			if ( rformElems.test( this.nodeName ) ) {

				// IE doesn't fire change on a check/radio until blur; trigger it on click
				// after a propertychange. Eat the blur-change in special.change.handle.
				// This still fires onchange a second time for check/radio after blur.
				if ( this.type === "checkbox" || this.type === "radio" ) {
					jQuery.event.add( this, "propertychange._change", function( event ) {
						if ( event.originalEvent.propertyName === "checked" ) {
							this._justChanged = true;
						}
					} );
					jQuery.event.add( this, "click._change", function( event ) {
						if ( this._justChanged && !event.isTrigger ) {
							this._justChanged = false;
						}

						// Allow triggered, simulated change events (#11500)
						jQuery.event.simulate( "change", this, event );
					} );
				}
				return false;
			}

			// Delegated event; lazy-add a change handler on descendant inputs
			jQuery.event.add( this, "beforeactivate._change", function( e ) {
				var elem = e.target;

				if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "change" ) ) {
					jQuery.event.add( elem, "change._change", function( event ) {
						if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
							jQuery.event.simulate( "change", this.parentNode, event );
						}
					} );
					jQuery._data( elem, "change", true );
				}
			} );
		},

		handle: function( event ) {
			var elem = event.target;

			// Swallow native change events from checkbox/radio, we already triggered them above
			if ( this !== elem || event.isSimulated || event.isTrigger ||
				( elem.type !== "radio" && elem.type !== "checkbox" ) ) {

				return event.handleObj.handler.apply( this, arguments );
			}
		},

		teardown: function() {
			jQuery.event.remove( this, "._change" );

			return !rformElems.test( this.nodeName );
		}
	};
}

// Support: Firefox
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome, Safari
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://code.google.com/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

		// Attach a single capturing handler on the document while someone wants focusin/focusout
		var handler = function( event ) {
			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
		};

		jQuery.event.special[ fix ] = {
			setup: function() {
				var doc = this.ownerDocument || this,
					attaches = jQuery._data( doc, fix );

				if ( !attaches ) {
					doc.addEventListener( orig, handler, true );
				}
				jQuery._data( doc, fix, ( attaches || 0 ) + 1 );
			},
			teardown: function() {
				var doc = this.ownerDocument || this,
					attaches = jQuery._data( doc, fix ) - 1;

				if ( !attaches ) {
					doc.removeEventListener( orig, handler, true );
					jQuery._removeData( doc, fix );
				} else {
					jQuery._data( doc, fix, attaches );
				}
			}
		};
	} );
}

jQuery.fn.extend( {

	on: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn );
	},
	one: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn, 1 );
	},
	off: function( types, selector, fn ) {
		var handleObj, type;
		if ( types && types.preventDefault && types.handleObj ) {

			// ( event )  dispatched jQuery.Event
			handleObj = types.handleObj;
			jQuery( types.delegateTarget ).off(
				handleObj.namespace ?
					handleObj.origType + "." + handleObj.namespace :
					handleObj.origType,
				handleObj.selector,
				handleObj.handler
			);
			return this;
		}
		if ( typeof types === "object" ) {

			// ( types-object [, selector] )
			for ( type in types ) {
				this.off( type, selector, types[ type ] );
			}
			return this;
		}
		if ( selector === false || typeof selector === "function" ) {

			// ( types [, fn] )
			fn = selector;
			selector = undefined;
		}
		if ( fn === false ) {
			fn = returnFalse;
		}
		return this.each( function() {
			jQuery.event.remove( this, types, fn, selector );
		} );
	},

	trigger: function( type, data ) {
		return this.each( function() {
			jQuery.event.trigger( type, data, this );
		} );
	},
	triggerHandler: function( type, data ) {
		var elem = this[ 0 ];
		if ( elem ) {
			return jQuery.event.trigger( type, data, elem, true );
		}
	}
} );


var rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
	rnoshimcache = new RegExp( "<(?:" + nodeNames + ")[\\s/>]", "i" ),
	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:-]+)[^>]*)\/>/gi,

	// Support: IE 10-11, Edge 10240+
	// In IE/Edge using regex groups here causes severe slowdowns.
	// See https://connect.microsoft.com/IE/feedback/details/1736512/
	rnoInnerhtml = /<script|<style|<link/i,

	// checked="checked" or checked
	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
	rscriptTypeMasked = /^true\/(.*)/,
	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
	safeFragment = createSafeFragment( document ),
	fragmentDiv = safeFragment.appendChild( document.createElement( "div" ) );

// Support: IE<8
// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {
	return jQuery.nodeName( elem, "table" ) &&
		jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?

		elem.getElementsByTagName( "tbody" )[ 0 ] ||
			elem.appendChild( elem.ownerDocument.createElement( "tbody" ) ) :
		elem;
}

// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
	elem.type = ( jQuery.find.attr( elem, "type" ) !== null ) + "/" + elem.type;
	return elem;
}
function restoreScript( elem ) {
	var match = rscriptTypeMasked.exec( elem.type );
	if ( match ) {
		elem.type = match[ 1 ];
	} else {
		elem.removeAttribute( "type" );
	}
	return elem;
}

function cloneCopyEvent( src, dest ) {
	if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
		return;
	}

	var type, i, l,
		oldData = jQuery._data( src ),
		curData = jQuery._data( dest, oldData ),
		events = oldData.events;

	if ( events ) {
		delete curData.handle;
		curData.events = {};

		for ( type in events ) {
			for ( i = 0, l = events[ type ].length; i < l; i++ ) {
				jQuery.event.add( dest, type, events[ type ][ i ] );
			}
		}
	}

	// make the cloned public data object a copy from the original
	if ( curData.data ) {
		curData.data = jQuery.extend( {}, curData.data );
	}
}

function fixCloneNodeIssues( src, dest ) {
	var nodeName, e, data;

	// We do not need to do anything for non-Elements
	if ( dest.nodeType !== 1 ) {
		return;
	}

	nodeName = dest.nodeName.toLowerCase();

	// IE6-8 copies events bound via attachEvent when using cloneNode.
	if ( !support.noCloneEvent && dest[ jQuery.expando ] ) {
		data = jQuery._data( dest );

		for ( e in data.events ) {
			jQuery.removeEvent( dest, e, data.handle );
		}

		// Event data gets referenced instead of copied if the expando gets copied too
		dest.removeAttribute( jQuery.expando );
	}

	// IE blanks contents when cloning scripts, and tries to evaluate newly-set text
	if ( nodeName === "script" && dest.text !== src.text ) {
		disableScript( dest ).text = src.text;
		restoreScript( dest );

	// IE6-10 improperly clones children of object elements using classid.
	// IE10 throws NoModificationAllowedError if parent is null, #12132.
	} else if ( nodeName === "object" ) {
		if ( dest.parentNode ) {
			dest.outerHTML = src.outerHTML;
		}

		// This path appears unavoidable for IE9. When cloning an object
		// element in IE9, the outerHTML strategy above is not sufficient.
		// If the src has innerHTML and the destination does not,
		// copy the src.innerHTML into the dest.innerHTML. #10324
		if ( support.html5Clone && ( src.innerHTML && !jQuery.trim( dest.innerHTML ) ) ) {
			dest.innerHTML = src.innerHTML;
		}

	} else if ( nodeName === "input" && rcheckableType.test( src.type ) ) {

		// IE6-8 fails to persist the checked state of a cloned checkbox
		// or radio button. Worse, IE6-7 fail to give the cloned element
		// a checked appearance if the defaultChecked value isn't also set

		dest.defaultChecked = dest.checked = src.checked;

		// IE6-7 get confused and end up setting the value of a cloned
		// checkbox/radio button to an empty string instead of "on"
		if ( dest.value !== src.value ) {
			dest.value = src.value;
		}

	// IE6-8 fails to return the selected option to the default selected
	// state when cloning options
	} else if ( nodeName === "option" ) {
		dest.defaultSelected = dest.selected = src.defaultSelected;

	// IE6-8 fails to set the defaultValue to the correct value when
	// cloning other types of input fields
	} else if ( nodeName === "input" || nodeName === "textarea" ) {
		dest.defaultValue = src.defaultValue;
	}
}

function domManip( collection, args, callback, ignored ) {

	// Flatten any nested arrays
	args = concat.apply( [], args );

	var first, node, hasScripts,
		scripts, doc, fragment,
		i = 0,
		l = collection.length,
		iNoClone = l - 1,
		value = args[ 0 ],
		isFunction = jQuery.isFunction( value );

	// We can't cloneNode fragments that contain checked, in WebKit
	if ( isFunction ||
			( l > 1 && typeof value === "string" &&
				!support.checkClone && rchecked.test( value ) ) ) {
		return collection.each( function( index ) {
			var self = collection.eq( index );
			if ( isFunction ) {
				args[ 0 ] = value.call( this, index, self.html() );
			}
			domManip( self, args, callback, ignored );
		} );
	}

	if ( l ) {
		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
		first = fragment.firstChild;

		if ( fragment.childNodes.length === 1 ) {
			fragment = first;
		}

		// Require either new content or an interest in ignored elements to invoke the callback
		if ( first || ignored ) {
			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
			hasScripts = scripts.length;

			// Use the original fragment for the last item
			// instead of the first because it can end up
			// being emptied incorrectly in certain situations (#8070).
			for ( ; i < l; i++ ) {
				node = fragment;

				if ( i !== iNoClone ) {
					node = jQuery.clone( node, true, true );

					// Keep references to cloned scripts for later restoration
					if ( hasScripts ) {

						// Support: Android<4.1, PhantomJS<2
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( scripts, getAll( node, "script" ) );
					}
				}

				callback.call( collection[ i ], node, i );
			}

			if ( hasScripts ) {
				doc = scripts[ scripts.length - 1 ].ownerDocument;

				// Reenable scripts
				jQuery.map( scripts, restoreScript );

				// Evaluate executable scripts on first document insertion
				for ( i = 0; i < hasScripts; i++ ) {
					node = scripts[ i ];
					if ( rscriptType.test( node.type || "" ) &&
						!jQuery._data( node, "globalEval" ) &&
						jQuery.contains( doc, node ) ) {

						if ( node.src ) {

							// Optional AJAX dependency, but won't run scripts if not present
							if ( jQuery._evalUrl ) {
								jQuery._evalUrl( node.src );
							}
						} else {
							jQuery.globalEval(
								( node.text || node.textContent || node.innerHTML || "" )
									.replace( rcleanScript, "" )
							);
						}
					}
				}
			}

			// Fix #11809: Avoid leaking memory
			fragment = first = null;
		}
	}

	return collection;
}

function remove( elem, selector, keepData ) {
	var node,
		elems = selector ? jQuery.filter( selector, elem ) : elem,
		i = 0;

	for ( ; ( node = elems[ i ] ) != null; i++ ) {

		if ( !keepData && node.nodeType === 1 ) {
			jQuery.cleanData( getAll( node ) );
		}

		if ( node.parentNode ) {
			if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
				setGlobalEval( getAll( node, "script" ) );
			}
			node.parentNode.removeChild( node );
		}
	}

	return elem;
}

jQuery.extend( {
	htmlPrefilter: function( html ) {
		return html.replace( rxhtmlTag, "<$1></$2>" );
	},

	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
		var destElements, node, clone, i, srcElements,
			inPage = jQuery.contains( elem.ownerDocument, elem );

		if ( support.html5Clone || jQuery.isXMLDoc( elem ) ||
			!rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {

			clone = elem.cloneNode( true );

		// IE<=8 does not properly clone detached, unknown element nodes
		} else {
			fragmentDiv.innerHTML = elem.outerHTML;
			fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
		}

		if ( ( !support.noCloneEvent || !support.noCloneChecked ) &&
				( elem.nodeType === 1 || elem.nodeType === 11 ) && !jQuery.isXMLDoc( elem ) ) {

			// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
			destElements = getAll( clone );
			srcElements = getAll( elem );

			// Fix all IE cloning issues
			for ( i = 0; ( node = srcElements[ i ] ) != null; ++i ) {

				// Ensure that the destination node is not null; Fixes #9587
				if ( destElements[ i ] ) {
					fixCloneNodeIssues( node, destElements[ i ] );
				}
			}
		}

		// Copy the events from the original to the clone
		if ( dataAndEvents ) {
			if ( deepDataAndEvents ) {
				srcElements = srcElements || getAll( elem );
				destElements = destElements || getAll( clone );

				for ( i = 0; ( node = srcElements[ i ] ) != null; i++ ) {
					cloneCopyEvent( node, destElements[ i ] );
				}
			} else {
				cloneCopyEvent( elem, clone );
			}
		}

		// Preserve script evaluation history
		destElements = getAll( clone, "script" );
		if ( destElements.length > 0 ) {
			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
		}

		destElements = srcElements = node = null;

		// Return the cloned set
		return clone;
	},

	cleanData: function( elems, /* internal */ forceAcceptData ) {
		var elem, type, id, data,
			i = 0,
			internalKey = jQuery.expando,
			cache = jQuery.cache,
			attributes = support.attributes,
			special = jQuery.event.special;

		for ( ; ( elem = elems[ i ] ) != null; i++ ) {
			if ( forceAcceptData || acceptData( elem ) ) {

				id = elem[ internalKey ];
				data = id && cache[ id ];

				if ( data ) {
					if ( data.events ) {
						for ( type in data.events ) {
							if ( special[ type ] ) {
								jQuery.event.remove( elem, type );

							// This is a shortcut to avoid jQuery.event.remove's overhead
							} else {
								jQuery.removeEvent( elem, type, data.handle );
							}
						}
					}

					// Remove cache only if it was not already removed by jQuery.event.remove
					if ( cache[ id ] ) {

						delete cache[ id ];

						// Support: IE<9
						// IE does not allow us to delete expando properties from nodes
						// IE creates expando attributes along with the property
						// IE does not have a removeAttribute function on Document nodes
						if ( !attributes && typeof elem.removeAttribute !== "undefined" ) {
							elem.removeAttribute( internalKey );

						// Webkit & Blink performance suffers when deleting properties
						// from DOM nodes, so set to undefined instead
						// https://code.google.com/p/chromium/issues/detail?id=378607
						} else {
							elem[ internalKey ] = undefined;
						}

						deletedIds.push( id );
					}
				}
			}
		}
	}
} );

jQuery.fn.extend( {

	// Keep domManip exposed until 3.0 (gh-2225)
	domManip: domManip,

	detach: function( selector ) {
		return remove( this, selector, true );
	},

	remove: function( selector ) {
		return remove( this, selector );
	},

	text: function( value ) {
		return access( this, function( value ) {
			return value === undefined ?
				jQuery.text( this ) :
				this.empty().append(
					( this[ 0 ] && this[ 0 ].ownerDocument || document ).createTextNode( value )
				);
		}, null, value, arguments.length );
	},

	append: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.appendChild( elem );
			}
		} );
	},

	prepend: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.insertBefore( elem, target.firstChild );
			}
		} );
	},

	before: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this );
			}
		} );
	},

	after: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this.nextSibling );
			}
		} );
	},

	empty: function() {
		var elem,
			i = 0;

		for ( ; ( elem = this[ i ] ) != null; i++ ) {

			// Remove element nodes and prevent memory leaks
			if ( elem.nodeType === 1 ) {
				jQuery.cleanData( getAll( elem, false ) );
			}

			// Remove any remaining nodes
			while ( elem.firstChild ) {
				elem.removeChild( elem.firstChild );
			}

			// If this is a select, ensure that it displays empty (#12336)
			// Support: IE<9
			if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
				elem.options.length = 0;
			}
		}

		return this;
	},

	clone: function( dataAndEvents, deepDataAndEvents ) {
		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

		return this.map( function() {
			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
		} );
	},

	html: function( value ) {
		return access( this, function( value ) {
			var elem = this[ 0 ] || {},
				i = 0,
				l = this.length;

			if ( value === undefined ) {
				return elem.nodeType === 1 ?
					elem.innerHTML.replace( rinlinejQuery, "" ) :
					undefined;
			}

			// See if we can take a shortcut and just use innerHTML
			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
				( support.htmlSerialize || !rnoshimcache.test( value )  ) &&
				( support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

				value = jQuery.htmlPrefilter( value );

				try {
					for ( ; i < l; i++ ) {

						// Remove element nodes and prevent memory leaks
						elem = this[ i ] || {};
						if ( elem.nodeType === 1 ) {
							jQuery.cleanData( getAll( elem, false ) );
							elem.innerHTML = value;
						}
					}

					elem = 0;

				// If using innerHTML throws an exception, use the fallback method
				} catch ( e ) {}
			}

			if ( elem ) {
				this.empty().append( value );
			}
		}, null, value, arguments.length );
	},

	replaceWith: function() {
		var ignored = [];

		// Make the changes, replacing each non-ignored context element with the new content
		return domManip( this, arguments, function( elem ) {
			var parent = this.parentNode;

			if ( jQuery.inArray( this, ignored ) < 0 ) {
				jQuery.cleanData( getAll( this ) );
				if ( parent ) {
					parent.replaceChild( elem, this );
				}
			}

		// Force callback invocation
		}, ignored );
	}
} );

jQuery.each( {
	appendTo: "append",
	prependTo: "prepend",
	insertBefore: "before",
	insertAfter: "after",
	replaceAll: "replaceWith"
}, function( name, original ) {
	jQuery.fn[ name ] = function( selector ) {
		var elems,
			i = 0,
			ret = [],
			insert = jQuery( selector ),
			last = insert.length - 1;

		for ( ; i <= last; i++ ) {
			elems = i === last ? this : this.clone( true );
			jQuery( insert[ i ] )[ original ]( elems );

			// Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
			push.apply( ret, elems.get() );
		}

		return this.pushStack( ret );
	};
} );


var iframe,
	elemdisplay = {

		// Support: Firefox
		// We have to pre-define these values for FF (#10227)
		HTML: "block",
		BODY: "block"
	};

/**
 * Retrieve the actual display of a element
 * @param {String} name nodeName of the element
 * @param {Object} doc Document object
 */

// Called only from within defaultDisplay
function actualDisplay( name, doc ) {
	var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),

		display = jQuery.css( elem[ 0 ], "display" );

	// We don't have any data stored on the element,
	// so use "detach" method as fast way to get rid of the element
	elem.detach();

	return display;
}

/**
 * Try to determine the default display value of an element
 * @param {String} nodeName
 */
function defaultDisplay( nodeName ) {
	var doc = document,
		display = elemdisplay[ nodeName ];

	if ( !display ) {
		display = actualDisplay( nodeName, doc );

		// If the simple way fails, read from inside an iframe
		if ( display === "none" || !display ) {

			// Use the already-created iframe if possible
			iframe = ( iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" ) )
				.appendTo( doc.documentElement );

			// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
			doc = ( iframe[ 0 ].contentWindow || iframe[ 0 ].contentDocument ).document;

			// Support: IE
			doc.write();
			doc.close();

			display = actualDisplay( nodeName, doc );
			iframe.detach();
		}

		// Store the correct default display
		elemdisplay[ nodeName ] = display;
	}

	return display;
}
var rmargin = ( /^margin/ );

var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

var swap = function( elem, options, callback, args ) {
	var ret, name,
		old = {};

	// Remember the old values, and insert the new ones
	for ( name in options ) {
		old[ name ] = elem.style[ name ];
		elem.style[ name ] = options[ name ];
	}

	ret = callback.apply( elem, args || [] );

	// Revert the old values
	for ( name in options ) {
		elem.style[ name ] = old[ name ];
	}

	return ret;
};


var documentElement = document.documentElement;



( function() {
	var pixelPositionVal, pixelMarginRightVal, boxSizingReliableVal,
		reliableHiddenOffsetsVal, reliableMarginRightVal, reliableMarginLeftVal,
		container = document.createElement( "div" ),
		div = document.createElement( "div" );

	// Finish early in limited (non-browser) environments
	if ( !div.style ) {
		return;
	}

	div.style.cssText = "float:left;opacity:.5";

	// Support: IE<9
	// Make sure that element opacity exists (as opposed to filter)
	support.opacity = div.style.opacity === "0.5";

	// Verify style float existence
	// (IE uses styleFloat instead of cssFloat)
	support.cssFloat = !!div.style.cssFloat;

	div.style.backgroundClip = "content-box";
	div.cloneNode( true ).style.backgroundClip = "";
	support.clearCloneStyle = div.style.backgroundClip === "content-box";

	container = document.createElement( "div" );
	container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
		"padding:0;margin-top:1px;position:absolute";
	div.innerHTML = "";
	container.appendChild( div );

	// Support: Firefox<29, Android 2.3
	// Vendor-prefix box-sizing
	support.boxSizing = div.style.boxSizing === "" || div.style.MozBoxSizing === "" ||
		div.style.WebkitBoxSizing === "";

	jQuery.extend( support, {
		reliableHiddenOffsets: function() {
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return reliableHiddenOffsetsVal;
		},

		boxSizingReliable: function() {

			// We're checking for pixelPositionVal here instead of boxSizingReliableVal
			// since that compresses better and they're computed together anyway.
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return boxSizingReliableVal;
		},

		pixelMarginRight: function() {

			// Support: Android 4.0-4.3
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return pixelMarginRightVal;
		},

		pixelPosition: function() {
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return pixelPositionVal;
		},

		reliableMarginRight: function() {

			// Support: Android 2.3
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return reliableMarginRightVal;
		},

		reliableMarginLeft: function() {

			// Support: IE <=8 only, Android 4.0 - 4.3 only, Firefox <=3 - 37
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return reliableMarginLeftVal;
		}
	} );

	function computeStyleTests() {
		var contents, divStyle,
			documentElement = document.documentElement;

		// Setup
		documentElement.appendChild( container );

		div.style.cssText =

			// Support: Android 2.3
			// Vendor-prefix box-sizing
			"-webkit-box-sizing:border-box;box-sizing:border-box;" +
			"position:relative;display:block;" +
			"margin:auto;border:1px;padding:1px;" +
			"top:1%;width:50%";

		// Support: IE<9
		// Assume reasonable values in the absence of getComputedStyle
		pixelPositionVal = boxSizingReliableVal = reliableMarginLeftVal = false;
		pixelMarginRightVal = reliableMarginRightVal = true;

		// Check for getComputedStyle so that this code is not run in IE<9.
		if ( window.getComputedStyle ) {
			divStyle = window.getComputedStyle( div );
			pixelPositionVal = ( divStyle || {} ).top !== "1%";
			reliableMarginLeftVal = ( divStyle || {} ).marginLeft === "2px";
			boxSizingReliableVal = ( divStyle || { width: "4px" } ).width === "4px";

			// Support: Android 4.0 - 4.3 only
			// Some styles come back with percentage values, even though they shouldn't
			div.style.marginRight = "50%";
			pixelMarginRightVal = ( divStyle || { marginRight: "4px" } ).marginRight === "4px";

			// Support: Android 2.3 only
			// Div with explicit width and no margin-right incorrectly
			// gets computed margin-right based on width of container (#3333)
			// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
			contents = div.appendChild( document.createElement( "div" ) );

			// Reset CSS: box-sizing; display; margin; border; padding
			contents.style.cssText = div.style.cssText =

				// Support: Android 2.3
				// Vendor-prefix box-sizing
				"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
				"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
			contents.style.marginRight = contents.style.width = "0";
			div.style.width = "1px";

			reliableMarginRightVal =
				!parseFloat( ( window.getComputedStyle( contents ) || {} ).marginRight );

			div.removeChild( contents );
		}

		// Support: IE6-8
		// First check that getClientRects works as expected
		// Check if table cells still have offsetWidth/Height when they are set
		// to display:none and there are still other visible table cells in a
		// table row; if so, offsetWidth/Height are not reliable for use when
		// determining if an element has been hidden directly using
		// display:none (it is still safe to use offsets if a parent element is
		// hidden; don safety goggles and see bug #4512 for more information).
		div.style.display = "none";
		reliableHiddenOffsetsVal = div.getClientRects().length === 0;
		if ( reliableHiddenOffsetsVal ) {
			div.style.display = "";
			div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
			div.childNodes[ 0 ].style.borderCollapse = "separate";
			contents = div.getElementsByTagName( "td" );
			contents[ 0 ].style.cssText = "margin:0;border:0;padding:0;display:none";
			reliableHiddenOffsetsVal = contents[ 0 ].offsetHeight === 0;
			if ( reliableHiddenOffsetsVal ) {
				contents[ 0 ].style.display = "";
				contents[ 1 ].style.display = "none";
				reliableHiddenOffsetsVal = contents[ 0 ].offsetHeight === 0;
			}
		}

		// Teardown
		documentElement.removeChild( container );
	}

} )();


var getStyles, curCSS,
	rposition = /^(top|right|bottom|left)$/;

if ( window.getComputedStyle ) {
	getStyles = function( elem ) {

		// Support: IE<=11+, Firefox<=30+ (#15098, #14150)
		// IE throws on elements created in popups
		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
		var view = elem.ownerDocument.defaultView;

		if ( !view || !view.opener ) {
			view = window;
		}

		return view.getComputedStyle( elem );
	};

	curCSS = function( elem, name, computed ) {
		var width, minWidth, maxWidth, ret,
			style = elem.style;

		computed = computed || getStyles( elem );

		// getPropertyValue is only needed for .css('filter') in IE9, see #12537
		ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined;

		// Support: Opera 12.1x only
		// Fall back to style even without computed
		// computed is undefined for elems on document fragments
		if ( ( ret === "" || ret === undefined ) && !jQuery.contains( elem.ownerDocument, elem ) ) {
			ret = jQuery.style( elem, name );
		}

		if ( computed ) {

			// A tribute to the "awesome hack by Dean Edwards"
			// Chrome < 17 and Safari 5.0 uses "computed value"
			// instead of "used value" for margin-right
			// Safari 5.1.7 (at least) returns percentage for a larger set of values,
			// but width seems to be reliably pixels
			// this is against the CSSOM draft spec:
			// http://dev.w3.org/csswg/cssom/#resolved-values
			if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {

				// Remember the original values
				width = style.width;
				minWidth = style.minWidth;
				maxWidth = style.maxWidth;

				// Put in the new values to get a computed value out
				style.minWidth = style.maxWidth = style.width = ret;
				ret = computed.width;

				// Revert the changed values
				style.width = width;
				style.minWidth = minWidth;
				style.maxWidth = maxWidth;
			}
		}

		// Support: IE
		// IE returns zIndex value as an integer.
		return ret === undefined ?
			ret :
			ret + "";
	};
} else if ( documentElement.currentStyle ) {
	getStyles = function( elem ) {
		return elem.currentStyle;
	};

	curCSS = function( elem, name, computed ) {
		var left, rs, rsLeft, ret,
			style = elem.style;

		computed = computed || getStyles( elem );
		ret = computed ? computed[ name ] : undefined;

		// Avoid setting ret to empty string here
		// so we don't default to auto
		if ( ret == null && style && style[ name ] ) {
			ret = style[ name ];
		}

		// From the awesome hack by Dean Edwards
		// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291

		// If we're not dealing with a regular pixel number
		// but a number that has a weird ending, we need to convert it to pixels
		// but not position css attributes, as those are
		// proportional to the parent element instead
		// and we can't measure the parent instead because it
		// might trigger a "stacking dolls" problem
		if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {

			// Remember the original values
			left = style.left;
			rs = elem.runtimeStyle;
			rsLeft = rs && rs.left;

			// Put in the new values to get a computed value out
			if ( rsLeft ) {
				rs.left = elem.currentStyle.left;
			}
			style.left = name === "fontSize" ? "1em" : ret;
			ret = style.pixelLeft + "px";

			// Revert the changed values
			style.left = left;
			if ( rsLeft ) {
				rs.left = rsLeft;
			}
		}

		// Support: IE
		// IE returns zIndex value as an integer.
		return ret === undefined ?
			ret :
			ret + "" || "auto";
	};
}




function addGetHookIf( conditionFn, hookFn ) {

	// Define the hook, we'll check on the first run if it's really needed.
	return {
		get: function() {
			if ( conditionFn() ) {

				// Hook not needed (or it's not possible to use it due
				// to missing dependency), remove it.
				delete this.get;
				return;
			}

			// Hook needed; redefine it so that the support test is not executed again.
			return ( this.get = hookFn ).apply( this, arguments );
		}
	};
}


var

		ralpha = /alpha\([^)]*\)/i,
	ropacity = /opacity\s*=\s*([^)]*)/i,

	// swappable if display is none or starts with table except
	// "table", "table-cell", or "table-caption"
	// see here for display values:
	// https://developer.mozilla.org/en-US/docs/CSS/display
	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
	rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),

	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
	cssNormalTransform = {
		letterSpacing: "0",
		fontWeight: "400"
	},

	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ],
	emptyStyle = document.createElement( "div" ).style;


// return a css property mapped to a potentially vendor prefixed property
function vendorPropName( name ) {

	// shortcut for names that are not vendor prefixed
	if ( name in emptyStyle ) {
		return name;
	}

	// check for vendor prefixed names
	var capName = name.charAt( 0 ).toUpperCase() + name.slice( 1 ),
		i = cssPrefixes.length;

	while ( i-- ) {
		name = cssPrefixes[ i ] + capName;
		if ( name in emptyStyle ) {
			return name;
		}
	}
}

function showHide( elements, show ) {
	var display, elem, hidden,
		values = [],
		index = 0,
		length = elements.length;

	for ( ; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}

		values[ index ] = jQuery._data( elem, "olddisplay" );
		display = elem.style.display;
		if ( show ) {

			// Reset the inline display of this element to learn if it is
			// being hidden by cascaded rules or not
			if ( !values[ index ] && display === "none" ) {
				elem.style.display = "";
			}

			// Set elements which have been overridden with display: none
			// in a stylesheet to whatever the default browser style is
			// for such an element
			if ( elem.style.display === "" && isHidden( elem ) ) {
				values[ index ] =
					jQuery._data( elem, "olddisplay", defaultDisplay( elem.nodeName ) );
			}
		} else {
			hidden = isHidden( elem );

			if ( display && display !== "none" || !hidden ) {
				jQuery._data(
					elem,
					"olddisplay",
					hidden ? display : jQuery.css( elem, "display" )
				);
			}
		}
	}

	// Set the display of most of the elements in a second loop
	// to avoid the constant reflow
	for ( index = 0; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}
		if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
			elem.style.display = show ? values[ index ] || "" : "none";
		}
	}

	return elements;
}

function setPositiveNumber( elem, value, subtract ) {
	var matches = rnumsplit.exec( value );
	return matches ?

		// Guard against undefined "subtract", e.g., when used as in cssHooks
		Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
		value;
}

function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
	var i = extra === ( isBorderBox ? "border" : "content" ) ?

		// If we already have the right measurement, avoid augmentation
		4 :

		// Otherwise initialize for horizontal or vertical properties
		name === "width" ? 1 : 0,

		val = 0;

	for ( ; i < 4; i += 2 ) {

		// both box models exclude margin, so add it if we want it
		if ( extra === "margin" ) {
			val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
		}

		if ( isBorderBox ) {

			// border-box includes padding, so remove it if we want content
			if ( extra === "content" ) {
				val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
			}

			// at this point, extra isn't border nor margin, so remove border
			if ( extra !== "margin" ) {
				val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		} else {

			// at this point, extra isn't content, so add padding
			val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

			// at this point, extra isn't content nor padding, so add border
			if ( extra !== "padding" ) {
				val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		}
	}

	return val;
}

function getWidthOrHeight( elem, name, extra ) {

	// Start with offset property, which is equivalent to the border-box value
	var valueIsBorderBox = true,
		val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
		styles = getStyles( elem ),
		isBorderBox = support.boxSizing &&
			jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

	// some non-html elements return undefined for offsetWidth, so check for null/undefined
	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
	if ( val <= 0 || val == null ) {

		// Fall back to computed then uncomputed css if necessary
		val = curCSS( elem, name, styles );
		if ( val < 0 || val == null ) {
			val = elem.style[ name ];
		}

		// Computed unit is not pixels. Stop here and return.
		if ( rnumnonpx.test( val ) ) {
			return val;
		}

		// we need the check for style in case a browser which returns unreliable values
		// for getComputedStyle silently falls back to the reliable elem.style
		valueIsBorderBox = isBorderBox &&
			( support.boxSizingReliable() || val === elem.style[ name ] );

		// Normalize "", auto, and prepare for extra
		val = parseFloat( val ) || 0;
	}

	// use the active box-sizing model to add/subtract irrelevant styles
	return ( val +
		augmentWidthOrHeight(
			elem,
			name,
			extra || ( isBorderBox ? "border" : "content" ),
			valueIsBorderBox,
			styles
		)
	) + "px";
}

jQuery.extend( {

	// Add in style property hooks for overriding the default
	// behavior of getting and setting a style property
	cssHooks: {
		opacity: {
			get: function( elem, computed ) {
				if ( computed ) {

					// We should always get a number back from opacity
					var ret = curCSS( elem, "opacity" );
					return ret === "" ? "1" : ret;
				}
			}
		}
	},

	// Don't automatically add "px" to these possibly-unitless properties
	cssNumber: {
		"animationIterationCount": true,
		"columnCount": true,
		"fillOpacity": true,
		"flexGrow": true,
		"flexShrink": true,
		"fontWeight": true,
		"lineHeight": true,
		"opacity": true,
		"order": true,
		"orphans": true,
		"widows": true,
		"zIndex": true,
		"zoom": true
	},

	// Add in properties whose names you wish to fix before
	// setting or getting the value
	cssProps: {

		// normalize float css property
		"float": support.cssFloat ? "cssFloat" : "styleFloat"
	},

	// Get and set the style property on a DOM Node
	style: function( elem, name, value, extra ) {

		// Don't set styles on text and comment nodes
		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
			return;
		}

		// Make sure that we're working with the right name
		var ret, type, hooks,
			origName = jQuery.camelCase( name ),
			style = elem.style;

		name = jQuery.cssProps[ origName ] ||
			( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );

		// gets hook for the prefixed version
		// followed by the unprefixed version
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// Check if we're setting a value
		if ( value !== undefined ) {
			type = typeof value;

			// Convert "+=" or "-=" to relative numbers (#7345)
			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
				value = adjustCSS( elem, name, ret );

				// Fixes bug #9237
				type = "number";
			}

			// Make sure that null and NaN values aren't set. See: #7116
			if ( value == null || value !== value ) {
				return;
			}

			// If a number was passed in, add the unit (except for certain CSS properties)
			if ( type === "number" ) {
				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
			}

			// Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
			// but it would mean to define eight
			// (for every problematic property) identical functions
			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
				style[ name ] = "inherit";
			}

			// If a hook was provided, use that value, otherwise just set the specified value
			if ( !hooks || !( "set" in hooks ) ||
				( value = hooks.set( elem, value, extra ) ) !== undefined ) {

				// Support: IE
				// Swallow errors from 'invalid' CSS values (#5509)
				try {
					style[ name ] = value;
				} catch ( e ) {}
			}

		} else {

			// If a hook was provided get the non-computed value from there
			if ( hooks && "get" in hooks &&
				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

				return ret;
			}

			// Otherwise just get the value from the style object
			return style[ name ];
		}
	},

	css: function( elem, name, extra, styles ) {
		var num, val, hooks,
			origName = jQuery.camelCase( name );

		// Make sure that we're working with the right name
		name = jQuery.cssProps[ origName ] ||
			( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );

		// gets hook for the prefixed version
		// followed by the unprefixed version
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// If a hook was provided get the computed value from there
		if ( hooks && "get" in hooks ) {
			val = hooks.get( elem, true, extra );
		}

		// Otherwise, if a way to get the computed value exists, use that
		if ( val === undefined ) {
			val = curCSS( elem, name, styles );
		}

		//convert "normal" to computed value
		if ( val === "normal" && name in cssNormalTransform ) {
			val = cssNormalTransform[ name ];
		}

		// Return, converting to number if forced or a qualifier was provided and val looks numeric
		if ( extra === "" || extra ) {
			num = parseFloat( val );
			return extra === true || isFinite( num ) ? num || 0 : val;
		}
		return val;
	}
} );

jQuery.each( [ "height", "width" ], function( i, name ) {
	jQuery.cssHooks[ name ] = {
		get: function( elem, computed, extra ) {
			if ( computed ) {

				// certain elements can have dimension info if we invisibly show them
				// however, it must have a current display style that would benefit from this
				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
					elem.offsetWidth === 0 ?
						swap( elem, cssShow, function() {
							return getWidthOrHeight( elem, name, extra );
						} ) :
						getWidthOrHeight( elem, name, extra );
			}
		},

		set: function( elem, value, extra ) {
			var styles = extra && getStyles( elem );
			return setPositiveNumber( elem, value, extra ?
				augmentWidthOrHeight(
					elem,
					name,
					extra,
					support.boxSizing &&
						jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
					styles
				) : 0
			);
		}
	};
} );

if ( !support.opacity ) {
	jQuery.cssHooks.opacity = {
		get: function( elem, computed ) {

			// IE uses filters for opacity
			return ropacity.test( ( computed && elem.currentStyle ?
				elem.currentStyle.filter :
				elem.style.filter ) || "" ) ?
					( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
					computed ? "1" : "";
		},

		set: function( elem, value ) {
			var style = elem.style,
				currentStyle = elem.currentStyle,
				opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
				filter = currentStyle && currentStyle.filter || style.filter || "";

			// IE has trouble with opacity if it does not have layout
			// Force it by setting the zoom level
			style.zoom = 1;

			// if setting opacity to 1, and no other filters exist -
			// attempt to remove filter attribute #6652
			// if value === "", then remove inline opacity #12685
			if ( ( value >= 1 || value === "" ) &&
					jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
					style.removeAttribute ) {

				// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
				// if "filter:" is present at all, clearType is disabled, we want to avoid this
				// style.removeAttribute is IE Only, but so apparently is this code path...
				style.removeAttribute( "filter" );

				// if there is no filter style applied in a css rule
				// or unset inline opacity, we are done
				if ( value === "" || currentStyle && !currentStyle.filter ) {
					return;
				}
			}

			// otherwise, set new filter values
			style.filter = ralpha.test( filter ) ?
				filter.replace( ralpha, opacity ) :
				filter + " " + opacity;
		}
	};
}

jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
	function( elem, computed ) {
		if ( computed ) {
			return swap( elem, { "display": "inline-block" },
				curCSS, [ elem, "marginRight" ] );
		}
	}
);

jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
	function( elem, computed ) {
		if ( computed ) {
			return (
				parseFloat( curCSS( elem, "marginLeft" ) ) ||

				// Support: IE<=11+
				// Running getBoundingClientRect on a disconnected node in IE throws an error
				// Support: IE8 only
				// getClientRects() errors on disconnected elems
				( jQuery.contains( elem.ownerDocument, elem ) ?
					elem.getBoundingClientRect().left -
						swap( elem, { marginLeft: 0 }, function() {
							return elem.getBoundingClientRect().left;
						} ) :
					0
				)
			) + "px";
		}
	}
);

// These hooks are used by animate to expand properties
jQuery.each( {
	margin: "",
	padding: "",
	border: "Width"
}, function( prefix, suffix ) {
	jQuery.cssHooks[ prefix + suffix ] = {
		expand: function( value ) {
			var i = 0,
				expanded = {},

				// assumes a single number if not a string
				parts = typeof value === "string" ? value.split( " " ) : [ value ];

			for ( ; i < 4; i++ ) {
				expanded[ prefix + cssExpand[ i ] + suffix ] =
					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
			}

			return expanded;
		}
	};

	if ( !rmargin.test( prefix ) ) {
		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
	}
} );

jQuery.fn.extend( {
	css: function( name, value ) {
		return access( this, function( elem, name, value ) {
			var styles, len,
				map = {},
				i = 0;

			if ( jQuery.isArray( name ) ) {
				styles = getStyles( elem );
				len = name.length;

				for ( ; i < len; i++ ) {
					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
				}

				return map;
			}

			return value !== undefined ?
				jQuery.style( elem, name, value ) :
				jQuery.css( elem, name );
		}, name, value, arguments.length > 1 );
	},
	show: function() {
		return showHide( this, true );
	},
	hide: function() {
		return showHide( this );
	},
	toggle: function( state ) {
		if ( typeof state === "boolean" ) {
			return state ? this.show() : this.hide();
		}

		return this.each( function() {
			if ( isHidden( this ) ) {
				jQuery( this ).show();
			} else {
				jQuery( this ).hide();
			}
		} );
	}
} );


function Tween( elem, options, prop, end, easing ) {
	return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;

Tween.prototype = {
	constructor: Tween,
	init: function( elem, options, prop, end, easing, unit ) {
		this.elem = elem;
		this.prop = prop;
		this.easing = easing || jQuery.easing._default;
		this.options = options;
		this.start = this.now = this.cur();
		this.end = end;
		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
	},
	cur: function() {
		var hooks = Tween.propHooks[ this.prop ];

		return hooks && hooks.get ?
			hooks.get( this ) :
			Tween.propHooks._default.get( this );
	},
	run: function( percent ) {
		var eased,
			hooks = Tween.propHooks[ this.prop ];

		if ( this.options.duration ) {
			this.pos = eased = jQuery.easing[ this.easing ](
				percent, this.options.duration * percent, 0, 1, this.options.duration
			);
		} else {
			this.pos = eased = percent;
		}
		this.now = ( this.end - this.start ) * eased + this.start;

		if ( this.options.step ) {
			this.options.step.call( this.elem, this.now, this );
		}

		if ( hooks && hooks.set ) {
			hooks.set( this );
		} else {
			Tween.propHooks._default.set( this );
		}
		return this;
	}
};

Tween.prototype.init.prototype = Tween.prototype;

Tween.propHooks = {
	_default: {
		get: function( tween ) {
			var result;

			// Use a property on the element directly when it is not a DOM element,
			// or when there is no matching style property that exists.
			if ( tween.elem.nodeType !== 1 ||
				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
				return tween.elem[ tween.prop ];
			}

			// passing an empty string as a 3rd parameter to .css will automatically
			// attempt a parseFloat and fallback to a string if the parse fails
			// so, simple values such as "10px" are parsed to Float.
			// complex values such as "rotate(1rad)" are returned as is.
			result = jQuery.css( tween.elem, tween.prop, "" );

			// Empty strings, null, undefined and "auto" are converted to 0.
			return !result || result === "auto" ? 0 : result;
		},
		set: function( tween ) {

			// use step hook for back compat - use cssHook if its there - use .style if its
			// available and use plain properties where available
			if ( jQuery.fx.step[ tween.prop ] ) {
				jQuery.fx.step[ tween.prop ]( tween );
			} else if ( tween.elem.nodeType === 1 &&
				( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
					jQuery.cssHooks[ tween.prop ] ) ) {
				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
			} else {
				tween.elem[ tween.prop ] = tween.now;
			}
		}
	}
};

// Support: IE <=9
// Panic based approach to setting things on disconnected nodes

Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
	set: function( tween ) {
		if ( tween.elem.nodeType && tween.elem.parentNode ) {
			tween.elem[ tween.prop ] = tween.now;
		}
	}
};

jQuery.easing = {
	linear: function( p ) {
		return p;
	},
	swing: function( p ) {
		return 0.5 - Math.cos( p * Math.PI ) / 2;
	},
	_default: "swing"
};

jQuery.fx = Tween.prototype.init;

// Back Compat <1.8 extension point
jQuery.fx.step = {};




var
	fxNow, timerId,
	rfxtypes = /^(?:toggle|show|hide)$/,
	rrun = /queueHooks$/;

// Animations created synchronously will run synchronously
function createFxNow() {
	window.setTimeout( function() {
		fxNow = undefined;
	} );
	return ( fxNow = jQuery.now() );
}

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
	var which,
		attrs = { height: type },
		i = 0;

	// if we include width, step value is 1 to do all cssExpand values,
	// if we don't include width, step value is 2 to skip over Left and Right
	includeWidth = includeWidth ? 1 : 0;
	for ( ; i < 4 ; i += 2 - includeWidth ) {
		which = cssExpand[ i ];
		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
	}

	if ( includeWidth ) {
		attrs.opacity = attrs.width = type;
	}

	return attrs;
}

function createTween( value, prop, animation ) {
	var tween,
		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
		index = 0,
		length = collection.length;
	for ( ; index < length; index++ ) {
		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

			// we're done with this property
			return tween;
		}
	}
}

function defaultPrefilter( elem, props, opts ) {
	/* jshint validthis: true */
	var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
		anim = this,
		orig = {},
		style = elem.style,
		hidden = elem.nodeType && isHidden( elem ),
		dataShow = jQuery._data( elem, "fxshow" );

	// handle queue: false promises
	if ( !opts.queue ) {
		hooks = jQuery._queueHooks( elem, "fx" );
		if ( hooks.unqueued == null ) {
			hooks.unqueued = 0;
			oldfire = hooks.empty.fire;
			hooks.empty.fire = function() {
				if ( !hooks.unqueued ) {
					oldfire();
				}
			};
		}
		hooks.unqueued++;

		anim.always( function() {

			// doing this makes sure that the complete handler will be called
			// before this completes
			anim.always( function() {
				hooks.unqueued--;
				if ( !jQuery.queue( elem, "fx" ).length ) {
					hooks.empty.fire();
				}
			} );
		} );
	}

	// height/width overflow pass
	if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {

		// Make sure that nothing sneaks out
		// Record all 3 overflow attributes because IE does not
		// change the overflow attribute when overflowX and
		// overflowY are set to the same value
		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

		// Set display property to inline-block for height/width
		// animations on inline elements that are having width/height animated
		display = jQuery.css( elem, "display" );

		// Test default display if display is currently "none"
		checkDisplay = display === "none" ?
			jQuery._data( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;

		if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {

			// inline-level elements accept inline-block;
			// block-level elements need to be inline with layout
			if ( !support.inlineBlockNeedsLayout || defaultDisplay( elem.nodeName ) === "inline" ) {
				style.display = "inline-block";
			} else {
				style.zoom = 1;
			}
		}
	}

	if ( opts.overflow ) {
		style.overflow = "hidden";
		if ( !support.shrinkWrapBlocks() ) {
			anim.always( function() {
				style.overflow = opts.overflow[ 0 ];
				style.overflowX = opts.overflow[ 1 ];
				style.overflowY = opts.overflow[ 2 ];
			} );
		}
	}

	// show/hide pass
	for ( prop in props ) {
		value = props[ prop ];
		if ( rfxtypes.exec( value ) ) {
			delete props[ prop ];
			toggle = toggle || value === "toggle";
			if ( value === ( hidden ? "hide" : "show" ) ) {

				// If there is dataShow left over from a stopped hide or show
				// and we are going to proceed with show, we should pretend to be hidden
				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
					hidden = true;
				} else {
					continue;
				}
			}
			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );

		// Any non-fx value stops us from restoring the original display value
		} else {
			display = undefined;
		}
	}

	if ( !jQuery.isEmptyObject( orig ) ) {
		if ( dataShow ) {
			if ( "hidden" in dataShow ) {
				hidden = dataShow.hidden;
			}
		} else {
			dataShow = jQuery._data( elem, "fxshow", {} );
		}

		// store state if its toggle - enables .stop().toggle() to "reverse"
		if ( toggle ) {
			dataShow.hidden = !hidden;
		}
		if ( hidden ) {
			jQuery( elem ).show();
		} else {
			anim.done( function() {
				jQuery( elem ).hide();
			} );
		}
		anim.done( function() {
			var prop;
			jQuery._removeData( elem, "fxshow" );
			for ( prop in orig ) {
				jQuery.style( elem, prop, orig[ prop ] );
			}
		} );
		for ( prop in orig ) {
			tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );

			if ( !( prop in dataShow ) ) {
				dataShow[ prop ] = tween.start;
				if ( hidden ) {
					tween.end = tween.start;
					tween.start = prop === "width" || prop === "height" ? 1 : 0;
				}
			}
		}

	// If this is a noop like .hide().hide(), restore an overwritten display value
	} else if ( ( display === "none" ? defaultDisplay( elem.nodeName ) : display ) === "inline" ) {
		style.display = display;
	}
}

function propFilter( props, specialEasing ) {
	var index, name, easing, value, hooks;

	// camelCase, specialEasing and expand cssHook pass
	for ( index in props ) {
		name = jQuery.camelCase( index );
		easing = specialEasing[ name ];
		value = props[ index ];
		if ( jQuery.isArray( value ) ) {
			easing = value[ 1 ];
			value = props[ index ] = value[ 0 ];
		}

		if ( index !== name ) {
			props[ name ] = value;
			delete props[ index ];
		}

		hooks = jQuery.cssHooks[ name ];
		if ( hooks && "expand" in hooks ) {
			value = hooks.expand( value );
			delete props[ name ];

			// not quite $.extend, this wont overwrite keys already present.
			// also - reusing 'index' from above because we have the correct "name"
			for ( index in value ) {
				if ( !( index in props ) ) {
					props[ index ] = value[ index ];
					specialEasing[ index ] = easing;
				}
			}
		} else {
			specialEasing[ name ] = easing;
		}
	}
}

function Animation( elem, properties, options ) {
	var result,
		stopped,
		index = 0,
		length = Animation.prefilters.length,
		deferred = jQuery.Deferred().always( function() {

			// don't match elem in the :animated selector
			delete tick.elem;
		} ),
		tick = function() {
			if ( stopped ) {
				return false;
			}
			var currentTime = fxNow || createFxNow(),
				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),

				// Support: Android 2.3
				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
				temp = remaining / animation.duration || 0,
				percent = 1 - temp,
				index = 0,
				length = animation.tweens.length;

			for ( ; index < length ; index++ ) {
				animation.tweens[ index ].run( percent );
			}

			deferred.notifyWith( elem, [ animation, percent, remaining ] );

			if ( percent < 1 && length ) {
				return remaining;
			} else {
				deferred.resolveWith( elem, [ animation ] );
				return false;
			}
		},
		animation = deferred.promise( {
			elem: elem,
			props: jQuery.extend( {}, properties ),
			opts: jQuery.extend( true, {
				specialEasing: {},
				easing: jQuery.easing._default
			}, options ),
			originalProperties: properties,
			originalOptions: options,
			startTime: fxNow || createFxNow(),
			duration: options.duration,
			tweens: [],
			createTween: function( prop, end ) {
				var tween = jQuery.Tween( elem, animation.opts, prop, end,
						animation.opts.specialEasing[ prop ] || animation.opts.easing );
				animation.tweens.push( tween );
				return tween;
			},
			stop: function( gotoEnd ) {
				var index = 0,

					// if we are going to the end, we want to run all the tweens
					// otherwise we skip this part
					length = gotoEnd ? animation.tweens.length : 0;
				if ( stopped ) {
					return this;
				}
				stopped = true;
				for ( ; index < length ; index++ ) {
					animation.tweens[ index ].run( 1 );
				}

				// resolve when we played the last frame
				// otherwise, reject
				if ( gotoEnd ) {
					deferred.notifyWith( elem, [ animation, 1, 0 ] );
					deferred.resolveWith( elem, [ animation, gotoEnd ] );
				} else {
					deferred.rejectWith( elem, [ animation, gotoEnd ] );
				}
				return this;
			}
		} ),
		props = animation.props;

	propFilter( props, animation.opts.specialEasing );

	for ( ; index < length ; index++ ) {
		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
		if ( result ) {
			if ( jQuery.isFunction( result.stop ) ) {
				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
					jQuery.proxy( result.stop, result );
			}
			return result;
		}
	}

	jQuery.map( props, createTween, animation );

	if ( jQuery.isFunction( animation.opts.start ) ) {
		animation.opts.start.call( elem, animation );
	}

	jQuery.fx.timer(
		jQuery.extend( tick, {
			elem: elem,
			anim: animation,
			queue: animation.opts.queue
		} )
	);

	// attach callbacks from options
	return animation.progress( animation.opts.progress )
		.done( animation.opts.done, animation.opts.complete )
		.fail( animation.opts.fail )
		.always( animation.opts.always );
}

jQuery.Animation = jQuery.extend( Animation, {

	tweeners: {
		"*": [ function( prop, value ) {
			var tween = this.createTween( prop, value );
			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
			return tween;
		} ]
	},

	tweener: function( props, callback ) {
		if ( jQuery.isFunction( props ) ) {
			callback = props;
			props = [ "*" ];
		} else {
			props = props.match( rnotwhite );
		}

		var prop,
			index = 0,
			length = props.length;

		for ( ; index < length ; index++ ) {
			prop = props[ index ];
			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
			Animation.tweeners[ prop ].unshift( callback );
		}
	},

	prefilters: [ defaultPrefilter ],

	prefilter: function( callback, prepend ) {
		if ( prepend ) {
			Animation.prefilters.unshift( callback );
		} else {
			Animation.prefilters.push( callback );
		}
	}
} );

jQuery.speed = function( speed, easing, fn ) {
	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
		complete: fn || !fn && easing ||
			jQuery.isFunction( speed ) && speed,
		duration: speed,
		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
	};

	opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
		opt.duration in jQuery.fx.speeds ?
			jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;

	// normalize opt.queue - true/undefined/null -> "fx"
	if ( opt.queue == null || opt.queue === true ) {
		opt.queue = "fx";
	}

	// Queueing
	opt.old = opt.complete;

	opt.complete = function() {
		if ( jQuery.isFunction( opt.old ) ) {
			opt.old.call( this );
		}

		if ( opt.queue ) {
			jQuery.dequeue( this, opt.queue );
		}
	};

	return opt;
};

jQuery.fn.extend( {
	fadeTo: function( speed, to, easing, callback ) {

		// show any hidden elements after setting opacity to 0
		return this.filter( isHidden ).css( "opacity", 0 ).show()

			// animate to the value specified
			.end().animate( { opacity: to }, speed, easing, callback );
	},
	animate: function( prop, speed, easing, callback ) {
		var empty = jQuery.isEmptyObject( prop ),
			optall = jQuery.speed( speed, easing, callback ),
			doAnimation = function() {

				// Operate on a copy of prop so per-property easing won't be lost
				var anim = Animation( this, jQuery.extend( {}, prop ), optall );

				// Empty animations, or finishing resolves immediately
				if ( empty || jQuery._data( this, "finish" ) ) {
					anim.stop( true );
				}
			};
			doAnimation.finish = doAnimation;

		return empty || optall.queue === false ?
			this.each( doAnimation ) :
			this.queue( optall.queue, doAnimation );
	},
	stop: function( type, clearQueue, gotoEnd ) {
		var stopQueue = function( hooks ) {
			var stop = hooks.stop;
			delete hooks.stop;
			stop( gotoEnd );
		};

		if ( typeof type !== "string" ) {
			gotoEnd = clearQueue;
			clearQueue = type;
			type = undefined;
		}
		if ( clearQueue && type !== false ) {
			this.queue( type || "fx", [] );
		}

		return this.each( function() {
			var dequeue = true,
				index = type != null && type + "queueHooks",
				timers = jQuery.timers,
				data = jQuery._data( this );

			if ( index ) {
				if ( data[ index ] && data[ index ].stop ) {
					stopQueue( data[ index ] );
				}
			} else {
				for ( index in data ) {
					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
						stopQueue( data[ index ] );
					}
				}
			}

			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this &&
					( type == null || timers[ index ].queue === type ) ) {

					timers[ index ].anim.stop( gotoEnd );
					dequeue = false;
					timers.splice( index, 1 );
				}
			}

			// start the next in the queue if the last step wasn't forced
			// timers currently will call their complete callbacks, which will dequeue
			// but only if they were gotoEnd
			if ( dequeue || !gotoEnd ) {
				jQuery.dequeue( this, type );
			}
		} );
	},
	finish: function( type ) {
		if ( type !== false ) {
			type = type || "fx";
		}
		return this.each( function() {
			var index,
				data = jQuery._data( this ),
				queue = data[ type + "queue" ],
				hooks = data[ type + "queueHooks" ],
				timers = jQuery.timers,
				length = queue ? queue.length : 0;

			// enable finishing flag on private data
			data.finish = true;

			// empty the queue first
			jQuery.queue( this, type, [] );

			if ( hooks && hooks.stop ) {
				hooks.stop.call( this, true );
			}

			// look for any active animations, and finish them
			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
					timers[ index ].anim.stop( true );
					timers.splice( index, 1 );
				}
			}

			// look for any animations in the old queue and finish them
			for ( index = 0; index < length; index++ ) {
				if ( queue[ index ] && queue[ index ].finish ) {
					queue[ index ].finish.call( this );
				}
			}

			// turn off finishing flag
			delete data.finish;
		} );
	}
} );

jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
	var cssFn = jQuery.fn[ name ];
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return speed == null || typeof speed === "boolean" ?
			cssFn.apply( this, arguments ) :
			this.animate( genFx( name, true ), speed, easing, callback );
	};
} );

// Generate shortcuts for custom animations
jQuery.each( {
	slideDown: genFx( "show" ),
	slideUp: genFx( "hide" ),
	slideToggle: genFx( "toggle" ),
	fadeIn: { opacity: "show" },
	fadeOut: { opacity: "hide" },
	fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return this.animate( props, speed, easing, callback );
	};
} );

jQuery.timers = [];
jQuery.fx.tick = function() {
	var timer,
		timers = jQuery.timers,
		i = 0;

	fxNow = jQuery.now();

	for ( ; i < timers.length; i++ ) {
		timer = timers[ i ];

		// Checks the timer has not already been removed
		if ( !timer() && timers[ i ] === timer ) {
			timers.splice( i--, 1 );
		}
	}

	if ( !timers.length ) {
		jQuery.fx.stop();
	}
	fxNow = undefined;
};

jQuery.fx.timer = function( timer ) {
	jQuery.timers.push( timer );
	if ( timer() ) {
		jQuery.fx.start();
	} else {
		jQuery.timers.pop();
	}
};

jQuery.fx.interval = 13;

jQuery.fx.start = function() {
	if ( !timerId ) {
		timerId = window.setInterval( jQuery.fx.tick, jQuery.fx.interval );
	}
};

jQuery.fx.stop = function() {
	window.clearInterval( timerId );
	timerId = null;
};

jQuery.fx.speeds = {
	slow: 600,
	fast: 200,

	// Default speed
	_default: 400
};


// Based off of the plugin by Clint Helfers, with permission.
// http://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
	type = type || "fx";

	return this.queue( type, function( next, hooks ) {
		var timeout = window.setTimeout( next, time );
		hooks.stop = function() {
			window.clearTimeout( timeout );
		};
	} );
};


( function() {
	var a,
		input = document.createElement( "input" ),
		div = document.createElement( "div" ),
		select = document.createElement( "select" ),
		opt = select.appendChild( document.createElement( "option" ) );

	// Setup
	div = document.createElement( "div" );
	div.setAttribute( "className", "t" );
	div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";
	a = div.getElementsByTagName( "a" )[ 0 ];

	// Support: Windows Web Apps (WWA)
	// `type` must use .setAttribute for WWA (#14901)
	input.setAttribute( "type", "checkbox" );
	div.appendChild( input );

	a = div.getElementsByTagName( "a" )[ 0 ];

	// First batch of tests.
	a.style.cssText = "top:1px";

	// Test setAttribute on camelCase class.
	// If it works, we need attrFixes when doing get/setAttribute (ie6/7)
	support.getSetAttribute = div.className !== "t";

	// Get the style information from getAttribute
	// (IE uses .cssText instead)
	support.style = /top/.test( a.getAttribute( "style" ) );

	// Make sure that URLs aren't manipulated
	// (IE normalizes it by default)
	support.hrefNormalized = a.getAttribute( "href" ) === "/a";

	// Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
	support.checkOn = !!input.value;

	// Make sure that a selected-by-default option has a working selected property.
	// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
	support.optSelected = opt.selected;

	// Tests for enctype support on a form (#6743)
	support.enctype = !!document.createElement( "form" ).enctype;

	// Make sure that the options inside disabled selects aren't marked as disabled
	// (WebKit marks them as disabled)
	select.disabled = true;
	support.optDisabled = !opt.disabled;

	// Support: IE8 only
	// Check if we can trust getAttribute("value")
	input = document.createElement( "input" );
	input.setAttribute( "value", "" );
	support.input = input.getAttribute( "value" ) === "";

	// Check if an input maintains its value after becoming a radio
	input.value = "t";
	input.setAttribute( "type", "radio" );
	support.radioValue = input.value === "t";
} )();


var rreturn = /\r/g,
	rspaces = /[\x20\t\r\n\f]+/g;

jQuery.fn.extend( {
	val: function( value ) {
		var hooks, ret, isFunction,
			elem = this[ 0 ];

		if ( !arguments.length ) {
			if ( elem ) {
				hooks = jQuery.valHooks[ elem.type ] ||
					jQuery.valHooks[ elem.nodeName.toLowerCase() ];

				if (
					hooks &&
					"get" in hooks &&
					( ret = hooks.get( elem, "value" ) ) !== undefined
				) {
					return ret;
				}

				ret = elem.value;

				return typeof ret === "string" ?

					// handle most common string cases
					ret.replace( rreturn, "" ) :

					// handle cases where value is null/undef or number
					ret == null ? "" : ret;
			}

			return;
		}

		isFunction = jQuery.isFunction( value );

		return this.each( function( i ) {
			var val;

			if ( this.nodeType !== 1 ) {
				return;
			}

			if ( isFunction ) {
				val = value.call( this, i, jQuery( this ).val() );
			} else {
				val = value;
			}

			// Treat null/undefined as ""; convert numbers to string
			if ( val == null ) {
				val = "";
			} else if ( typeof val === "number" ) {
				val += "";
			} else if ( jQuery.isArray( val ) ) {
				val = jQuery.map( val, function( value ) {
					return value == null ? "" : value + "";
				} );
			}

			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

			// If set returns undefined, fall back to normal setting
			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
				this.value = val;
			}
		} );
	}
} );

jQuery.extend( {
	valHooks: {
		option: {
			get: function( elem ) {
				var val = jQuery.find.attr( elem, "value" );
				return val != null ?
					val :

					// Support: IE10-11+
					// option.text throws exceptions (#14686, #14858)
					// Strip and collapse whitespace
					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
					jQuery.trim( jQuery.text( elem ) ).replace( rspaces, " " );
			}
		},
		select: {
			get: function( elem ) {
				var value, option,
					options = elem.options,
					index = elem.selectedIndex,
					one = elem.type === "select-one" || index < 0,
					values = one ? null : [],
					max = one ? index + 1 : options.length,
					i = index < 0 ?
						max :
						one ? index : 0;

				// Loop through all the selected options
				for ( ; i < max; i++ ) {
					option = options[ i ];

					// oldIE doesn't update selected after form reset (#2551)
					if ( ( option.selected || i === index ) &&

							// Don't return options that are disabled or in a disabled optgroup
							( support.optDisabled ?
								!option.disabled :
								option.getAttribute( "disabled" ) === null ) &&
							( !option.parentNode.disabled ||
								!jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {

						// Get the specific value for the option
						value = jQuery( option ).val();

						// We don't need an array for one selects
						if ( one ) {
							return value;
						}

						// Multi-Selects return an array
						values.push( value );
					}
				}

				return values;
			},

			set: function( elem, value ) {
				var optionSet, option,
					options = elem.options,
					values = jQuery.makeArray( value ),
					i = options.length;

				while ( i-- ) {
					option = options[ i ];

					if ( jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 ) {

						// Support: IE6
						// When new option element is added to select box we need to
						// force reflow of newly added node in order to workaround delay
						// of initialization properties
						try {
							option.selected = optionSet = true;

						} catch ( _ ) {

							// Will be executed only in IE6
							option.scrollHeight;
						}

					} else {
						option.selected = false;
					}
				}

				// Force browsers to behave consistently when non-matching value is set
				if ( !optionSet ) {
					elem.selectedIndex = -1;
				}

				return options;
			}
		}
	}
} );

// Radios and checkboxes getter/setter
jQuery.each( [ "radio", "checkbox" ], function() {
	jQuery.valHooks[ this ] = {
		set: function( elem, value ) {
			if ( jQuery.isArray( value ) ) {
				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
			}
		}
	};
	if ( !support.checkOn ) {
		jQuery.valHooks[ this ].get = function( elem ) {
			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
		};
	}
} );




var nodeHook, boolHook,
	attrHandle = jQuery.expr.attrHandle,
	ruseDefault = /^(?:checked|selected)$/i,
	getSetAttribute = support.getSetAttribute,
	getSetInput = support.input;

jQuery.fn.extend( {
	attr: function( name, value ) {
		return access( this, jQuery.attr, name, value, arguments.length > 1 );
	},

	removeAttr: function( name ) {
		return this.each( function() {
			jQuery.removeAttr( this, name );
		} );
	}
} );

jQuery.extend( {
	attr: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set attributes on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		// Fallback to prop when attributes are not supported
		if ( typeof elem.getAttribute === "undefined" ) {
			return jQuery.prop( elem, name, value );
		}

		// All attributes are lowercase
		// Grab necessary hook if one is defined
		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
			name = name.toLowerCase();
			hooks = jQuery.attrHooks[ name ] ||
				( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
		}

		if ( value !== undefined ) {
			if ( value === null ) {
				jQuery.removeAttr( elem, name );
				return;
			}

			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			elem.setAttribute( name, value + "" );
			return value;
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		ret = jQuery.find.attr( elem, name );

		// Non-existent attributes return null, we normalize to undefined
		return ret == null ? undefined : ret;
	},

	attrHooks: {
		type: {
			set: function( elem, value ) {
				if ( !support.radioValue && value === "radio" &&
					jQuery.nodeName( elem, "input" ) ) {

					// Setting the type on a radio button after the value resets the value in IE8-9
					// Reset value to default in case type is set after value during creation
					var val = elem.value;
					elem.setAttribute( "type", value );
					if ( val ) {
						elem.value = val;
					}
					return value;
				}
			}
		}
	},

	removeAttr: function( elem, value ) {
		var name, propName,
			i = 0,
			attrNames = value && value.match( rnotwhite );

		if ( attrNames && elem.nodeType === 1 ) {
			while ( ( name = attrNames[ i++ ] ) ) {
				propName = jQuery.propFix[ name ] || name;

				// Boolean attributes get special treatment (#10870)
				if ( jQuery.expr.match.bool.test( name ) ) {

					// Set corresponding property to false
					if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
						elem[ propName ] = false;

					// Support: IE<9
					// Also clear defaultChecked/defaultSelected (if appropriate)
					} else {
						elem[ jQuery.camelCase( "default-" + name ) ] =
							elem[ propName ] = false;
					}

				// See #9699 for explanation of this approach (setting first, then removal)
				} else {
					jQuery.attr( elem, name, "" );
				}

				elem.removeAttribute( getSetAttribute ? name : propName );
			}
		}
	}
} );

// Hooks for boolean attributes
boolHook = {
	set: function( elem, value, name ) {
		if ( value === false ) {

			// Remove boolean attributes when set to false
			jQuery.removeAttr( elem, name );
		} else if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {

			// IE<8 needs the *property* name
			elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );

		} else {

			// Support: IE<9
			// Use defaultChecked and defaultSelected for oldIE
			elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
		}
		return name;
	}
};

jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
	var getter = attrHandle[ name ] || jQuery.find.attr;

	if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
		attrHandle[ name ] = function( elem, name, isXML ) {
			var ret, handle;
			if ( !isXML ) {

				// Avoid an infinite loop by temporarily removing this function from the getter
				handle = attrHandle[ name ];
				attrHandle[ name ] = ret;
				ret = getter( elem, name, isXML ) != null ?
					name.toLowerCase() :
					null;
				attrHandle[ name ] = handle;
			}
			return ret;
		};
	} else {
		attrHandle[ name ] = function( elem, name, isXML ) {
			if ( !isXML ) {
				return elem[ jQuery.camelCase( "default-" + name ) ] ?
					name.toLowerCase() :
					null;
			}
		};
	}
} );

// fix oldIE attroperties
if ( !getSetInput || !getSetAttribute ) {
	jQuery.attrHooks.value = {
		set: function( elem, value, name ) {
			if ( jQuery.nodeName( elem, "input" ) ) {

				// Does not return so that setAttribute is also used
				elem.defaultValue = value;
			} else {

				// Use nodeHook if defined (#1954); otherwise setAttribute is fine
				return nodeHook && nodeHook.set( elem, value, name );
			}
		}
	};
}

// IE6/7 do not support getting/setting some attributes with get/setAttribute
if ( !getSetAttribute ) {

	// Use this for any attribute in IE6/7
	// This fixes almost every IE6/7 issue
	nodeHook = {
		set: function( elem, value, name ) {

			// Set the existing or create a new attribute node
			var ret = elem.getAttributeNode( name );
			if ( !ret ) {
				elem.setAttributeNode(
					( ret = elem.ownerDocument.createAttribute( name ) )
				);
			}

			ret.value = value += "";

			// Break association with cloned elements by also using setAttribute (#9646)
			if ( name === "value" || value === elem.getAttribute( name ) ) {
				return value;
			}
		}
	};

	// Some attributes are constructed with empty-string values when not defined
	attrHandle.id = attrHandle.name = attrHandle.coords =
		function( elem, name, isXML ) {
			var ret;
			if ( !isXML ) {
				return ( ret = elem.getAttributeNode( name ) ) && ret.value !== "" ?
					ret.value :
					null;
			}
		};

	// Fixing value retrieval on a button requires this module
	jQuery.valHooks.button = {
		get: function( elem, name ) {
			var ret = elem.getAttributeNode( name );
			if ( ret && ret.specified ) {
				return ret.value;
			}
		},
		set: nodeHook.set
	};

	// Set contenteditable to false on removals(#10429)
	// Setting to empty string throws an error as an invalid value
	jQuery.attrHooks.contenteditable = {
		set: function( elem, value, name ) {
			nodeHook.set( elem, value === "" ? false : value, name );
		}
	};

	// Set width and height to auto instead of 0 on empty string( Bug #8150 )
	// This is for removals
	jQuery.each( [ "width", "height" ], function( i, name ) {
		jQuery.attrHooks[ name ] = {
			set: function( elem, value ) {
				if ( value === "" ) {
					elem.setAttribute( name, "auto" );
					return value;
				}
			}
		};
	} );
}

if ( !support.style ) {
	jQuery.attrHooks.style = {
		get: function( elem ) {

			// Return undefined in the case of empty string
			// Note: IE uppercases css property names, but if we were to .toLowerCase()
			// .cssText, that would destroy case sensitivity in URL's, like in "background"
			return elem.style.cssText || undefined;
		},
		set: function( elem, value ) {
			return ( elem.style.cssText = value + "" );
		}
	};
}




var rfocusable = /^(?:input|select|textarea|button|object)$/i,
	rclickable = /^(?:a|area)$/i;

jQuery.fn.extend( {
	prop: function( name, value ) {
		return access( this, jQuery.prop, name, value, arguments.length > 1 );
	},

	removeProp: function( name ) {
		name = jQuery.propFix[ name ] || name;
		return this.each( function() {

			// try/catch handles cases where IE balks (such as removing a property on window)
			try {
				this[ name ] = undefined;
				delete this[ name ];
			} catch ( e ) {}
		} );
	}
} );

jQuery.extend( {
	prop: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set properties on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {

			// Fix name and attach hooks
			name = jQuery.propFix[ name ] || name;
			hooks = jQuery.propHooks[ name ];
		}

		if ( value !== undefined ) {
			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			return ( elem[ name ] = value );
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		return elem[ name ];
	},

	propHooks: {
		tabIndex: {
			get: function( elem ) {

				// elem.tabIndex doesn't always return the
				// correct value when it hasn't been explicitly set
				// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
				// Use proper attribute retrieval(#12072)
				var tabindex = jQuery.find.attr( elem, "tabindex" );

				return tabindex ?
					parseInt( tabindex, 10 ) :
					rfocusable.test( elem.nodeName ) ||
						rclickable.test( elem.nodeName ) && elem.href ?
							0 :
							-1;
			}
		}
	},

	propFix: {
		"for": "htmlFor",
		"class": "className"
	}
} );

// Some attributes require a special call on IE
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !support.hrefNormalized ) {

	// href/src property should get the full normalized URL (#10299/#12915)
	jQuery.each( [ "href", "src" ], function( i, name ) {
		jQuery.propHooks[ name ] = {
			get: function( elem ) {
				return elem.getAttribute( name, 4 );
			}
		};
	} );
}

// Support: Safari, IE9+
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
if ( !support.optSelected ) {
	jQuery.propHooks.selected = {
		get: function( elem ) {
			var parent = elem.parentNode;

			if ( parent ) {
				parent.selectedIndex;

				// Make sure that it also works with optgroups, see #5701
				if ( parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
			}
			return null;
		},
		set: function( elem ) {
			var parent = elem.parentNode;
			if ( parent ) {
				parent.selectedIndex;

				if ( parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
			}
		}
	};
}

jQuery.each( [
	"tabIndex",
	"readOnly",
	"maxLength",
	"cellSpacing",
	"cellPadding",
	"rowSpan",
	"colSpan",
	"useMap",
	"frameBorder",
	"contentEditable"
], function() {
	jQuery.propFix[ this.toLowerCase() ] = this;
} );

// IE6/7 call enctype encoding
if ( !support.enctype ) {
	jQuery.propFix.enctype = "encoding";
}




var rclass = /[\t\r\n\f]/g;

function getClass( elem ) {
	return jQuery.attr( elem, "class" ) || "";
}

jQuery.fn.extend( {
	addClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( typeof value === "string" && value ) {
			classes = value.match( rnotwhite ) || [];

			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );
				cur = elem.nodeType === 1 &&
					( " " + curValue + " " ).replace( rclass, " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {
						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
							cur += clazz + " ";
						}
					}

					// only assign if different to avoid unneeded rendering.
					finalValue = jQuery.trim( cur );
					if ( curValue !== finalValue ) {
						jQuery.attr( elem, "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	removeClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( !arguments.length ) {
			return this.attr( "class", "" );
		}

		if ( typeof value === "string" && value ) {
			classes = value.match( rnotwhite ) || [];

			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );

				// This expression is here for better compressibility (see addClass)
				cur = elem.nodeType === 1 &&
					( " " + curValue + " " ).replace( rclass, " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {

						// Remove *all* instances
						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
							cur = cur.replace( " " + clazz + " ", " " );
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = jQuery.trim( cur );
					if ( curValue !== finalValue ) {
						jQuery.attr( elem, "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	toggleClass: function( value, stateVal ) {
		var type = typeof value;

		if ( typeof stateVal === "boolean" && type === "string" ) {
			return stateVal ? this.addClass( value ) : this.removeClass( value );
		}

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( i ) {
				jQuery( this ).toggleClass(
					value.call( this, i, getClass( this ), stateVal ),
					stateVal
				);
			} );
		}

		return this.each( function() {
			var className, i, self, classNames;

			if ( type === "string" ) {

				// Toggle individual class names
				i = 0;
				self = jQuery( this );
				classNames = value.match( rnotwhite ) || [];

				while ( ( className = classNames[ i++ ] ) ) {

					// Check each className given, space separated list
					if ( self.hasClass( className ) ) {
						self.removeClass( className );
					} else {
						self.addClass( className );
					}
				}

			// Toggle whole class name
			} else if ( value === undefined || type === "boolean" ) {
				className = getClass( this );
				if ( className ) {

					// store className if set
					jQuery._data( this, "__className__", className );
				}

				// If the element has a class name or if we're passed "false",
				// then remove the whole classname (if there was one, the above saved it).
				// Otherwise bring back whatever was previously saved (if anything),
				// falling back to the empty string if nothing was stored.
				jQuery.attr( this, "class",
					className || value === false ?
					"" :
					jQuery._data( this, "__className__" ) || ""
				);
			}
		} );
	},

	hasClass: function( selector ) {
		var className, elem,
			i = 0;

		className = " " + selector + " ";
		while ( ( elem = this[ i++ ] ) ) {
			if ( elem.nodeType === 1 &&
				( " " + getClass( elem ) + " " ).replace( rclass, " " )
					.indexOf( className ) > -1
			) {
				return true;
			}
		}

		return false;
	}
} );




// Return jQuery for attributes-only inclusion


jQuery.each( ( "blur focus focusin focusout load resize scroll unload click dblclick " +
	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
	"change select submit keydown keypress keyup error contextmenu" ).split( " " ),
	function( i, name ) {

	// Handle event binding
	jQuery.fn[ name ] = function( data, fn ) {
		return arguments.length > 0 ?
			this.on( name, null, data, fn ) :
			this.trigger( name );
	};
} );

jQuery.fn.extend( {
	hover: function( fnOver, fnOut ) {
		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
	}
} );


var location = window.location;

var nonce = jQuery.now();

var rquery = ( /\?/ );



var rvalidtokens = /(,)|(\[|{)|(}|])|"(?:[^"\\\r\n]|\\["\\\/bfnrt]|\\u[\da-fA-F]{4})*"\s*:?|true|false|null|-?(?!0\d)\d+(?:\.\d+|)(?:[eE][+-]?\d+|)/g;

jQuery.parseJSON = function( data ) {

	// Attempt to parse using the native JSON parser first
	if ( window.JSON && window.JSON.parse ) {

		// Support: Android 2.3
		// Workaround failure to string-cast null input
		return window.JSON.parse( data + "" );
	}

	var requireNonComma,
		depth = null,
		str = jQuery.trim( data + "" );

	// Guard against invalid (and possibly dangerous) input by ensuring that nothing remains
	// after removing valid tokens
	return str && !jQuery.trim( str.replace( rvalidtokens, function( token, comma, open, close ) {

		// Force termination if we see a misplaced comma
		if ( requireNonComma && comma ) {
			depth = 0;
		}

		// Perform no more replacements after returning to outermost depth
		if ( depth === 0 ) {
			return token;
		}

		// Commas must not follow "[", "{", or ","
		requireNonComma = open || comma;

		// Determine new depth
		// array/object open ("[" or "{"): depth += true - false (increment)
		// array/object close ("]" or "}"): depth += false - true (decrement)
		// other cases ("," or primitive): depth += true - true (numeric cast)
		depth += !close - !open;

		// Remove this token
		return "";
	} ) ) ?
		( Function( "return " + str ) )() :
		jQuery.error( "Invalid JSON: " + data );
};


// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
	var xml, tmp;
	if ( !data || typeof data !== "string" ) {
		return null;
	}
	try {
		if ( window.DOMParser ) { // Standard
			tmp = new window.DOMParser();
			xml = tmp.parseFromString( data, "text/xml" );
		} else { // IE
			xml = new window.ActiveXObject( "Microsoft.XMLDOM" );
			xml.async = "false";
			xml.loadXML( data );
		}
	} catch ( e ) {
		xml = undefined;
	}
	if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
		jQuery.error( "Invalid XML: " + data );
	}
	return xml;
};


var
	rhash = /#.*$/,
	rts = /([?&])_=[^&]*/,

	// IE leaves an \r character at EOL
	rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg,

	// #7653, #8125, #8152: local protocol detection
	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
	rnoContent = /^(?:GET|HEAD)$/,
	rprotocol = /^\/\//,
	rurl = /^([\w.+-]+:)(?:\/\/(?:[^\/?#]*@|)([^\/?#:]*)(?::(\d+)|)|)/,

	/* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
	prefilters = {},

	/* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
	transports = {},

	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
	allTypes = "*/".concat( "*" ),

	// Document location
	ajaxLocation = location.href,

	// Segment location into parts
	ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

	// dataTypeExpression is optional and defaults to "*"
	return function( dataTypeExpression, func ) {

		if ( typeof dataTypeExpression !== "string" ) {
			func = dataTypeExpression;
			dataTypeExpression = "*";
		}

		var dataType,
			i = 0,
			dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];

		if ( jQuery.isFunction( func ) ) {

			// For each dataType in the dataTypeExpression
			while ( ( dataType = dataTypes[ i++ ] ) ) {

				// Prepend if requested
				if ( dataType.charAt( 0 ) === "+" ) {
					dataType = dataType.slice( 1 ) || "*";
					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );

				// Otherwise append
				} else {
					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
				}
			}
		}
	};
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

	var inspected = {},
		seekingTransport = ( structure === transports );

	function inspect( dataType ) {
		var selected;
		inspected[ dataType ] = true;
		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
			if ( typeof dataTypeOrTransport === "string" &&
				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {

				options.dataTypes.unshift( dataTypeOrTransport );
				inspect( dataTypeOrTransport );
				return false;
			} else if ( seekingTransport ) {
				return !( selected = dataTypeOrTransport );
			}
		} );
		return selected;
	}

	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
	var deep, key,
		flatOptions = jQuery.ajaxSettings.flatOptions || {};

	for ( key in src ) {
		if ( src[ key ] !== undefined ) {
			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
		}
	}
	if ( deep ) {
		jQuery.extend( true, target, deep );
	}

	return target;
}

/* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
function ajaxHandleResponses( s, jqXHR, responses ) {
	var firstDataType, ct, finalDataType, type,
		contents = s.contents,
		dataTypes = s.dataTypes;

	// Remove auto dataType and get content-type in the process
	while ( dataTypes[ 0 ] === "*" ) {
		dataTypes.shift();
		if ( ct === undefined ) {
			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
		}
	}

	// Check if we're dealing with a known content-type
	if ( ct ) {
		for ( type in contents ) {
			if ( contents[ type ] && contents[ type ].test( ct ) ) {
				dataTypes.unshift( type );
				break;
			}
		}
	}

	// Check to see if we have a response for the expected dataType
	if ( dataTypes[ 0 ] in responses ) {
		finalDataType = dataTypes[ 0 ];
	} else {

		// Try convertible dataTypes
		for ( type in responses ) {
			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
				finalDataType = type;
				break;
			}
			if ( !firstDataType ) {
				firstDataType = type;
			}
		}

		// Or just use first one
		finalDataType = finalDataType || firstDataType;
	}

	// If we found a dataType
	// We add the dataType to the list if needed
	// and return the corresponding response
	if ( finalDataType ) {
		if ( finalDataType !== dataTypes[ 0 ] ) {
			dataTypes.unshift( finalDataType );
		}
		return responses[ finalDataType ];
	}
}

/* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
function ajaxConvert( s, response, jqXHR, isSuccess ) {
	var conv2, current, conv, tmp, prev,
		converters = {},

		// Work with a copy of dataTypes in case we need to modify it for conversion
		dataTypes = s.dataTypes.slice();

	// Create converters map with lowercased keys
	if ( dataTypes[ 1 ] ) {
		for ( conv in s.converters ) {
			converters[ conv.toLowerCase() ] = s.converters[ conv ];
		}
	}

	current = dataTypes.shift();

	// Convert to each sequential dataType
	while ( current ) {

		if ( s.responseFields[ current ] ) {
			jqXHR[ s.responseFields[ current ] ] = response;
		}

		// Apply the dataFilter if provided
		if ( !prev && isSuccess && s.dataFilter ) {
			response = s.dataFilter( response, s.dataType );
		}

		prev = current;
		current = dataTypes.shift();

		if ( current ) {

			// There's only work to do if current dataType is non-auto
			if ( current === "*" ) {

				current = prev;

			// Convert response if prev dataType is non-auto and differs from current
			} else if ( prev !== "*" && prev !== current ) {

				// Seek a direct converter
				conv = converters[ prev + " " + current ] || converters[ "* " + current ];

				// If none found, seek a pair
				if ( !conv ) {
					for ( conv2 in converters ) {

						// If conv2 outputs current
						tmp = conv2.split( " " );
						if ( tmp[ 1 ] === current ) {

							// If prev can be converted to accepted input
							conv = converters[ prev + " " + tmp[ 0 ] ] ||
								converters[ "* " + tmp[ 0 ] ];
							if ( conv ) {

								// Condense equivalence converters
								if ( conv === true ) {
									conv = converters[ conv2 ];

								// Otherwise, insert the intermediate dataType
								} else if ( converters[ conv2 ] !== true ) {
									current = tmp[ 0 ];
									dataTypes.unshift( tmp[ 1 ] );
								}
								break;
							}
						}
					}
				}

				// Apply converter (if not an equivalence)
				if ( conv !== true ) {

					// Unless errors are allowed to bubble, catch and return them
					if ( conv && s[ "throws" ] ) { // jscs:ignore requireDotNotation
						response = conv( response );
					} else {
						try {
							response = conv( response );
						} catch ( e ) {
							return {
								state: "parsererror",
								error: conv ? e : "No conversion from " + prev + " to " + current
							};
						}
					}
				}
			}
		}
	}

	return { state: "success", data: response };
}

jQuery.extend( {

	// Counter for holding the number of active queries
	active: 0,

	// Last-Modified header cache for next request
	lastModified: {},
	etag: {},

	ajaxSettings: {
		url: ajaxLocation,
		type: "GET",
		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
		global: true,
		processData: true,
		async: true,
		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
		/*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

		accepts: {
			"*": allTypes,
			text: "text/plain",
			html: "text/html",
			xml: "application/xml, text/xml",
			json: "application/json, text/javascript"
		},

		contents: {
			xml: /\bxml\b/,
			html: /\bhtml/,
			json: /\bjson\b/
		},

		responseFields: {
			xml: "responseXML",
			text: "responseText",
			json: "responseJSON"
		},

		// Data converters
		// Keys separate source (or catchall "*") and destination types with a single space
		converters: {

			// Convert anything to text
			"* text": String,

			// Text to html (true = no transformation)
			"text html": true,

			// Evaluate text as a json expression
			"text json": jQuery.parseJSON,

			// Parse text as xml
			"text xml": jQuery.parseXML
		},

		// For options that shouldn't be deep extended:
		// you can add your own custom options here if
		// and when you create one that shouldn't be
		// deep extended (see ajaxExtend)
		flatOptions: {
			url: true,
			context: true
		}
	},

	// Creates a full fledged settings object into target
	// with both ajaxSettings and settings fields.
	// If target is omitted, writes into ajaxSettings.
	ajaxSetup: function( target, settings ) {
		return settings ?

			// Building a settings object
			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

			// Extending ajaxSettings
			ajaxExtend( jQuery.ajaxSettings, target );
	},

	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
	ajaxTransport: addToPrefiltersOrTransports( transports ),

	// Main method
	ajax: function( url, options ) {

		// If url is an object, simulate pre-1.5 signature
		if ( typeof url === "object" ) {
			options = url;
			url = undefined;
		}

		// Force options to be an object
		options = options || {};

		var

			// Cross-domain detection vars
			parts,

			// Loop variable
			i,

			// URL without anti-cache param
			cacheURL,

			// Response headers as string
			responseHeadersString,

			// timeout handle
			timeoutTimer,

			// To know if global events are to be dispatched
			fireGlobals,

			transport,

			// Response headers
			responseHeaders,

			// Create the final options object
			s = jQuery.ajaxSetup( {}, options ),

			// Callbacks context
			callbackContext = s.context || s,

			// Context for global events is callbackContext if it is a DOM node or jQuery collection
			globalEventContext = s.context &&
				( callbackContext.nodeType || callbackContext.jquery ) ?
					jQuery( callbackContext ) :
					jQuery.event,

			// Deferreds
			deferred = jQuery.Deferred(),
			completeDeferred = jQuery.Callbacks( "once memory" ),

			// Status-dependent callbacks
			statusCode = s.statusCode || {},

			// Headers (they are sent all at once)
			requestHeaders = {},
			requestHeadersNames = {},

			// The jqXHR state
			state = 0,

			// Default abort message
			strAbort = "canceled",

			// Fake xhr
			jqXHR = {
				readyState: 0,

				// Builds headers hashtable if needed
				getResponseHeader: function( key ) {
					var match;
					if ( state === 2 ) {
						if ( !responseHeaders ) {
							responseHeaders = {};
							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
								responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
							}
						}
						match = responseHeaders[ key.toLowerCase() ];
					}
					return match == null ? null : match;
				},

				// Raw string
				getAllResponseHeaders: function() {
					return state === 2 ? responseHeadersString : null;
				},

				// Caches the header
				setRequestHeader: function( name, value ) {
					var lname = name.toLowerCase();
					if ( !state ) {
						name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
						requestHeaders[ name ] = value;
					}
					return this;
				},

				// Overrides response content-type header
				overrideMimeType: function( type ) {
					if ( !state ) {
						s.mimeType = type;
					}
					return this;
				},

				// Status-dependent callbacks
				statusCode: function( map ) {
					var code;
					if ( map ) {
						if ( state < 2 ) {
							for ( code in map ) {

								// Lazy-add the new callback in a way that preserves old ones
								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
							}
						} else {

							// Execute the appropriate callbacks
							jqXHR.always( map[ jqXHR.status ] );
						}
					}
					return this;
				},

				// Cancel the request
				abort: function( statusText ) {
					var finalText = statusText || strAbort;
					if ( transport ) {
						transport.abort( finalText );
					}
					done( 0, finalText );
					return this;
				}
			};

		// Attach deferreds
		deferred.promise( jqXHR ).complete = completeDeferred.add;
		jqXHR.success = jqXHR.done;
		jqXHR.error = jqXHR.fail;

		// Remove hash character (#7531: and string promotion)
		// Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
		// Handle falsy url in the settings object (#10093: consistency with old signature)
		// We also use the url parameter if available
		s.url = ( ( url || s.url || ajaxLocation ) + "" )
			.replace( rhash, "" )
			.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );

		// Alias method option to type as per ticket #12004
		s.type = options.method || options.type || s.method || s.type;

		// Extract dataTypes list
		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];

		// A cross-domain request is in order when we have a protocol:host:port mismatch
		if ( s.crossDomain == null ) {
			parts = rurl.exec( s.url.toLowerCase() );
			s.crossDomain = !!( parts &&
				( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
			);
		}

		// Convert data if not already a string
		if ( s.data && s.processData && typeof s.data !== "string" ) {
			s.data = jQuery.param( s.data, s.traditional );
		}

		// Apply prefilters
		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

		// If request was aborted inside a prefilter, stop there
		if ( state === 2 ) {
			return jqXHR;
		}

		// We can fire global events as of now if asked to
		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
		fireGlobals = jQuery.event && s.global;

		// Watch for a new set of requests
		if ( fireGlobals && jQuery.active++ === 0 ) {
			jQuery.event.trigger( "ajaxStart" );
		}

		// Uppercase the type
		s.type = s.type.toUpperCase();

		// Determine if request has content
		s.hasContent = !rnoContent.test( s.type );

		// Save the URL in case we're toying with the If-Modified-Since
		// and/or If-None-Match header later on
		cacheURL = s.url;

		// More options handling for requests with no content
		if ( !s.hasContent ) {

			// If data is available, append data to url
			if ( s.data ) {
				cacheURL = ( s.url += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data );

				// #9682: remove data so that it's not used in an eventual retry
				delete s.data;
			}

			// Add anti-cache in url if needed
			if ( s.cache === false ) {
				s.url = rts.test( cacheURL ) ?

					// If there is already a '_' parameter, set its value
					cacheURL.replace( rts, "$1_=" + nonce++ ) :

					// Otherwise add one to the end
					cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
			}
		}

		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
		if ( s.ifModified ) {
			if ( jQuery.lastModified[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
			}
			if ( jQuery.etag[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
			}
		}

		// Set the correct header, if data is being sent
		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
			jqXHR.setRequestHeader( "Content-Type", s.contentType );
		}

		// Set the Accepts header for the server, depending on the dataType
		jqXHR.setRequestHeader(
			"Accept",
			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
				s.accepts[ s.dataTypes[ 0 ] ] +
					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
				s.accepts[ "*" ]
		);

		// Check for headers option
		for ( i in s.headers ) {
			jqXHR.setRequestHeader( i, s.headers[ i ] );
		}

		// Allow custom headers/mimetypes and early abort
		if ( s.beforeSend &&
			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {

			// Abort if not done already and return
			return jqXHR.abort();
		}

		// aborting is no longer a cancellation
		strAbort = "abort";

		// Install callbacks on deferreds
		for ( i in { success: 1, error: 1, complete: 1 } ) {
			jqXHR[ i ]( s[ i ] );
		}

		// Get transport
		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

		// If no transport, we auto-abort
		if ( !transport ) {
			done( -1, "No Transport" );
		} else {
			jqXHR.readyState = 1;

			// Send global event
			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
			}

			// If request was aborted inside ajaxSend, stop there
			if ( state === 2 ) {
				return jqXHR;
			}

			// Timeout
			if ( s.async && s.timeout > 0 ) {
				timeoutTimer = window.setTimeout( function() {
					jqXHR.abort( "timeout" );
				}, s.timeout );
			}

			try {
				state = 1;
				transport.send( requestHeaders, done );
			} catch ( e ) {

				// Propagate exception as error if not done
				if ( state < 2 ) {
					done( -1, e );

				// Simply rethrow otherwise
				} else {
					throw e;
				}
			}
		}

		// Callback for when everything is done
		function done( status, nativeStatusText, responses, headers ) {
			var isSuccess, success, error, response, modified,
				statusText = nativeStatusText;

			// Called once
			if ( state === 2 ) {
				return;
			}

			// State is "done" now
			state = 2;

			// Clear timeout if it exists
			if ( timeoutTimer ) {
				window.clearTimeout( timeoutTimer );
			}

			// Dereference transport for early garbage collection
			// (no matter how long the jqXHR object will be used)
			transport = undefined;

			// Cache response headers
			responseHeadersString = headers || "";

			// Set readyState
			jqXHR.readyState = status > 0 ? 4 : 0;

			// Determine if successful
			isSuccess = status >= 200 && status < 300 || status === 304;

			// Get response data
			if ( responses ) {
				response = ajaxHandleResponses( s, jqXHR, responses );
			}

			// Convert no matter what (that way responseXXX fields are always set)
			response = ajaxConvert( s, response, jqXHR, isSuccess );

			// If successful, handle type chaining
			if ( isSuccess ) {

				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
				if ( s.ifModified ) {
					modified = jqXHR.getResponseHeader( "Last-Modified" );
					if ( modified ) {
						jQuery.lastModified[ cacheURL ] = modified;
					}
					modified = jqXHR.getResponseHeader( "etag" );
					if ( modified ) {
						jQuery.etag[ cacheURL ] = modified;
					}
				}

				// if no content
				if ( status === 204 || s.type === "HEAD" ) {
					statusText = "nocontent";

				// if not modified
				} else if ( status === 304 ) {
					statusText = "notmodified";

				// If we have data, let's convert it
				} else {
					statusText = response.state;
					success = response.data;
					error = response.error;
					isSuccess = !error;
				}
			} else {

				// We extract error from statusText
				// then normalize statusText and status for non-aborts
				error = statusText;
				if ( status || !statusText ) {
					statusText = "error";
					if ( status < 0 ) {
						status = 0;
					}
				}
			}

			// Set data for the fake xhr object
			jqXHR.status = status;
			jqXHR.statusText = ( nativeStatusText || statusText ) + "";

			// Success/Error
			if ( isSuccess ) {
				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
			} else {
				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
			}

			// Status-dependent callbacks
			jqXHR.statusCode( statusCode );
			statusCode = undefined;

			if ( fireGlobals ) {
				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
					[ jqXHR, s, isSuccess ? success : error ] );
			}

			// Complete
			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );

				// Handle the global AJAX counter
				if ( !( --jQuery.active ) ) {
					jQuery.event.trigger( "ajaxStop" );
				}
			}
		}

		return jqXHR;
	},

	getJSON: function( url, data, callback ) {
		return jQuery.get( url, data, callback, "json" );
	},

	getScript: function( url, callback ) {
		return jQuery.get( url, undefined, callback, "script" );
	}
} );

jQuery.each( [ "get", "post" ], function( i, method ) {
	jQuery[ method ] = function( url, data, callback, type ) {

		// shift arguments if data argument was omitted
		if ( jQuery.isFunction( data ) ) {
			type = type || callback;
			callback = data;
			data = undefined;
		}

		// The url can be an options object (which then must have .url)
		return jQuery.ajax( jQuery.extend( {
			url: url,
			type: method,
			dataType: type,
			data: data,
			success: callback
		}, jQuery.isPlainObject( url ) && url ) );
	};
} );


jQuery._evalUrl = function( url ) {
	return jQuery.ajax( {
		url: url,

		// Make this explicit, since user can override this through ajaxSetup (#11264)
		type: "GET",
		dataType: "script",
		cache: true,
		async: false,
		global: false,
		"throws": true
	} );
};


jQuery.fn.extend( {
	wrapAll: function( html ) {
		if ( jQuery.isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapAll( html.call( this, i ) );
			} );
		}

		if ( this[ 0 ] ) {

			// The elements to wrap the target around
			var wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

			if ( this[ 0 ].parentNode ) {
				wrap.insertBefore( this[ 0 ] );
			}

			wrap.map( function() {
				var elem = this;

				while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
					elem = elem.firstChild;
				}

				return elem;
			} ).append( this );
		}

		return this;
	},

	wrapInner: function( html ) {
		if ( jQuery.isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapInner( html.call( this, i ) );
			} );
		}

		return this.each( function() {
			var self = jQuery( this ),
				contents = self.contents();

			if ( contents.length ) {
				contents.wrapAll( html );

			} else {
				self.append( html );
			}
		} );
	},

	wrap: function( html ) {
		var isFunction = jQuery.isFunction( html );

		return this.each( function( i ) {
			jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
		} );
	},

	unwrap: function() {
		return this.parent().each( function() {
			if ( !jQuery.nodeName( this, "body" ) ) {
				jQuery( this ).replaceWith( this.childNodes );
			}
		} ).end();
	}
} );


function getDisplay( elem ) {
	return elem.style && elem.style.display || jQuery.css( elem, "display" );
}

function filterHidden( elem ) {

	// Disconnected elements are considered hidden
	if ( !jQuery.contains( elem.ownerDocument || document, elem ) ) {
		return true;
	}
	while ( elem && elem.nodeType === 1 ) {
		if ( getDisplay( elem ) === "none" || elem.type === "hidden" ) {
			return true;
		}
		elem = elem.parentNode;
	}
	return false;
}

jQuery.expr.filters.hidden = function( elem ) {

	// Support: Opera <= 12.12
	// Opera reports offsetWidths and offsetHeights less than zero on some elements
	return support.reliableHiddenOffsets() ?
		( elem.offsetWidth <= 0 && elem.offsetHeight <= 0 &&
			!elem.getClientRects().length ) :
			filterHidden( elem );
};

jQuery.expr.filters.visible = function( elem ) {
	return !jQuery.expr.filters.hidden( elem );
};




var r20 = /%20/g,
	rbracket = /\[\]$/,
	rCRLF = /\r?\n/g,
	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
	rsubmittable = /^(?:input|select|textarea|keygen)/i;

function buildParams( prefix, obj, traditional, add ) {
	var name;

	if ( jQuery.isArray( obj ) ) {

		// Serialize array item.
		jQuery.each( obj, function( i, v ) {
			if ( traditional || rbracket.test( prefix ) ) {

				// Treat each array item as a scalar.
				add( prefix, v );

			} else {

				// Item is non-scalar (array or object), encode its numeric index.
				buildParams(
					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
					v,
					traditional,
					add
				);
			}
		} );

	} else if ( !traditional && jQuery.type( obj ) === "object" ) {

		// Serialize object item.
		for ( name in obj ) {
			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
		}

	} else {

		// Serialize scalar item.
		add( prefix, obj );
	}
}

// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
	var prefix,
		s = [],
		add = function( key, value ) {

			// If value is a function, invoke it and return its value
			value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
		};

	// Set traditional to true for jQuery <= 1.3.2 behavior.
	if ( traditional === undefined ) {
		traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
	}

	// If an array was passed in, assume that it is an array of form elements.
	if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {

		// Serialize the form elements
		jQuery.each( a, function() {
			add( this.name, this.value );
		} );

	} else {

		// If traditional, encode the "old" way (the way 1.3.2 or older
		// did it), otherwise encode params recursively.
		for ( prefix in a ) {
			buildParams( prefix, a[ prefix ], traditional, add );
		}
	}

	// Return the resulting serialization
	return s.join( "&" ).replace( r20, "+" );
};

jQuery.fn.extend( {
	serialize: function() {
		return jQuery.param( this.serializeArray() );
	},
	serializeArray: function() {
		return this.map( function() {

			// Can add propHook for "elements" to filter or add form elements
			var elements = jQuery.prop( this, "elements" );
			return elements ? jQuery.makeArray( elements ) : this;
		} )
		.filter( function() {
			var type = this.type;

			// Use .is(":disabled") so that fieldset[disabled] works
			return this.name && !jQuery( this ).is( ":disabled" ) &&
				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
				( this.checked || !rcheckableType.test( type ) );
		} )
		.map( function( i, elem ) {
			var val = jQuery( this ).val();

			return val == null ?
				null :
				jQuery.isArray( val ) ?
					jQuery.map( val, function( val ) {
						return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
					} ) :
					{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
		} ).get();
	}
} );


// Create the request object
// (This is still attached to ajaxSettings for backward compatibility)
jQuery.ajaxSettings.xhr = window.ActiveXObject !== undefined ?

	// Support: IE6-IE8
	function() {

		// XHR cannot access local files, always use ActiveX for that case
		if ( this.isLocal ) {
			return createActiveXHR();
		}

		// Support: IE 9-11
		// IE seems to error on cross-domain PATCH requests when ActiveX XHR
		// is used. In IE 9+ always use the native XHR.
		// Note: this condition won't catch Edge as it doesn't define
		// document.documentMode but it also doesn't support ActiveX so it won't
		// reach this code.
		if ( document.documentMode > 8 ) {
			return createStandardXHR();
		}

		// Support: IE<9
		// oldIE XHR does not support non-RFC2616 methods (#13240)
		// See http://msdn.microsoft.com/en-us/library/ie/ms536648(v=vs.85).aspx
		// and http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9
		// Although this check for six methods instead of eight
		// since IE also does not support "trace" and "connect"
		return /^(get|post|head|put|delete|options)$/i.test( this.type ) &&
			createStandardXHR() || createActiveXHR();
	} :

	// For all other browsers, use the standard XMLHttpRequest object
	createStandardXHR;

var xhrId = 0,
	xhrCallbacks = {},
	xhrSupported = jQuery.ajaxSettings.xhr();

// Support: IE<10
// Open requests must be manually aborted on unload (#5280)
// See https://support.microsoft.com/kb/2856746 for more info
if ( window.attachEvent ) {
	window.attachEvent( "onunload", function() {
		for ( var key in xhrCallbacks ) {
			xhrCallbacks[ key ]( undefined, true );
		}
	} );
}

// Determine support properties
support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
xhrSupported = support.ajax = !!xhrSupported;

// Create transport if the browser can provide an xhr
if ( xhrSupported ) {

	jQuery.ajaxTransport( function( options ) {

		// Cross domain only allowed if supported through XMLHttpRequest
		if ( !options.crossDomain || support.cors ) {

			var callback;

			return {
				send: function( headers, complete ) {
					var i,
						xhr = options.xhr(),
						id = ++xhrId;

					// Open the socket
					xhr.open(
						options.type,
						options.url,
						options.async,
						options.username,
						options.password
					);

					// Apply custom fields if provided
					if ( options.xhrFields ) {
						for ( i in options.xhrFields ) {
							xhr[ i ] = options.xhrFields[ i ];
						}
					}

					// Override mime type if needed
					if ( options.mimeType && xhr.overrideMimeType ) {
						xhr.overrideMimeType( options.mimeType );
					}

					// X-Requested-With header
					// For cross-domain requests, seeing as conditions for a preflight are
					// akin to a jigsaw puzzle, we simply never set it to be sure.
					// (it can always be set on a per-request basis or even using ajaxSetup)
					// For same-domain requests, won't change header if already provided.
					if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
						headers[ "X-Requested-With" ] = "XMLHttpRequest";
					}

					// Set headers
					for ( i in headers ) {

						// Support: IE<9
						// IE's ActiveXObject throws a 'Type Mismatch' exception when setting
						// request header to a null-value.
						//
						// To keep consistent with other XHR implementations, cast the value
						// to string and ignore `undefined`.
						if ( headers[ i ] !== undefined ) {
							xhr.setRequestHeader( i, headers[ i ] + "" );
						}
					}

					// Do send the request
					// This may raise an exception which is actually
					// handled in jQuery.ajax (so no try/catch here)
					xhr.send( ( options.hasContent && options.data ) || null );

					// Listener
					callback = function( _, isAbort ) {
						var status, statusText, responses;

						// Was never called and is aborted or complete
						if ( callback && ( isAbort || xhr.readyState === 4 ) ) {

							// Clean up
							delete xhrCallbacks[ id ];
							callback = undefined;
							xhr.onreadystatechange = jQuery.noop;

							// Abort manually if needed
							if ( isAbort ) {
								if ( xhr.readyState !== 4 ) {
									xhr.abort();
								}
							} else {
								responses = {};
								status = xhr.status;

								// Support: IE<10
								// Accessing binary-data responseText throws an exception
								// (#11426)
								if ( typeof xhr.responseText === "string" ) {
									responses.text = xhr.responseText;
								}

								// Firefox throws an exception when accessing
								// statusText for faulty cross-domain requests
								try {
									statusText = xhr.statusText;
								} catch ( e ) {

									// We normalize with Webkit giving an empty statusText
									statusText = "";
								}

								// Filter status for non standard behaviors

								// If the request is local and we have data: assume a success
								// (success with no data won't get notified, that's the best we
								// can do given current implementations)
								if ( !status && options.isLocal && !options.crossDomain ) {
									status = responses.text ? 200 : 404;

								// IE - #1450: sometimes returns 1223 when it should be 204
								} else if ( status === 1223 ) {
									status = 204;
								}
							}
						}

						// Call complete if needed
						if ( responses ) {
							complete( status, statusText, responses, xhr.getAllResponseHeaders() );
						}
					};

					// Do send the request
					// `xhr.send` may raise an exception, but it will be
					// handled in jQuery.ajax (so no try/catch here)
					if ( !options.async ) {

						// If we're in sync mode we fire the callback
						callback();
					} else if ( xhr.readyState === 4 ) {

						// (IE6 & IE7) if it's in cache and has been
						// retrieved directly we need to fire the callback
						window.setTimeout( callback );
					} else {

						// Register the callback, but delay it in case `xhr.send` throws
						// Add to the list of active xhr callbacks
						xhr.onreadystatechange = xhrCallbacks[ id ] = callback;
					}
				},

				abort: function() {
					if ( callback ) {
						callback( undefined, true );
					}
				}
			};
		}
	} );
}

// Functions to create xhrs
function createStandardXHR() {
	try {
		return new window.XMLHttpRequest();
	} catch ( e ) {}
}

function createActiveXHR() {
	try {
		return new window.ActiveXObject( "Microsoft.XMLHTTP" );
	} catch ( e ) {}
}




// Install script dataType
jQuery.ajaxSetup( {
	accepts: {
		script: "text/javascript, application/javascript, " +
			"application/ecmascript, application/x-ecmascript"
	},
	contents: {
		script: /\b(?:java|ecma)script\b/
	},
	converters: {
		"text script": function( text ) {
			jQuery.globalEval( text );
			return text;
		}
	}
} );

// Handle cache's special case and global
jQuery.ajaxPrefilter( "script", function( s ) {
	if ( s.cache === undefined ) {
		s.cache = false;
	}
	if ( s.crossDomain ) {
		s.type = "GET";
		s.global = false;
	}
} );

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {

	// This transport only deals with cross domain requests
	if ( s.crossDomain ) {

		var script,
			head = document.head || jQuery( "head" )[ 0 ] || document.documentElement;

		return {

			send: function( _, callback ) {

				script = document.createElement( "script" );

				script.async = true;

				if ( s.scriptCharset ) {
					script.charset = s.scriptCharset;
				}

				script.src = s.url;

				// Attach handlers for all browsers
				script.onload = script.onreadystatechange = function( _, isAbort ) {

					if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {

						// Handle memory leak in IE
						script.onload = script.onreadystatechange = null;

						// Remove the script
						if ( script.parentNode ) {
							script.parentNode.removeChild( script );
						}

						// Dereference the script
						script = null;

						// Callback if not abort
						if ( !isAbort ) {
							callback( 200, "success" );
						}
					}
				};

				// Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
				// Use native DOM manipulation to avoid our domManip AJAX trickery
				head.insertBefore( script, head.firstChild );
			},

			abort: function() {
				if ( script ) {
					script.onload( undefined, true );
				}
			}
		};
	}
} );




var oldCallbacks = [],
	rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup( {
	jsonp: "callback",
	jsonpCallback: function() {
		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
		this[ callback ] = true;
		return callback;
	}
} );

// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

	var callbackName, overwritten, responseContainer,
		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
			"url" :
			typeof s.data === "string" &&
				( s.contentType || "" )
					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
				rjsonp.test( s.data ) && "data"
		);

	// Handle iff the expected data type is "jsonp" or we have a parameter to set
	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

		// Get callback name, remembering preexisting value associated with it
		callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
			s.jsonpCallback() :
			s.jsonpCallback;

		// Insert callback into url or form data
		if ( jsonProp ) {
			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
		} else if ( s.jsonp !== false ) {
			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
		}

		// Use data converter to retrieve json after script execution
		s.converters[ "script json" ] = function() {
			if ( !responseContainer ) {
				jQuery.error( callbackName + " was not called" );
			}
			return responseContainer[ 0 ];
		};

		// force json dataType
		s.dataTypes[ 0 ] = "json";

		// Install callback
		overwritten = window[ callbackName ];
		window[ callbackName ] = function() {
			responseContainer = arguments;
		};

		// Clean-up function (fires after converters)
		jqXHR.always( function() {

			// If previous value didn't exist - remove it
			if ( overwritten === undefined ) {
				jQuery( window ).removeProp( callbackName );

			// Otherwise restore preexisting value
			} else {
				window[ callbackName ] = overwritten;
			}

			// Save back as free
			if ( s[ callbackName ] ) {

				// make sure that re-using the options doesn't screw things around
				s.jsonpCallback = originalSettings.jsonpCallback;

				// save the callback name for future use
				oldCallbacks.push( callbackName );
			}

			// Call if it was a function and we have a response
			if ( responseContainer && jQuery.isFunction( overwritten ) ) {
				overwritten( responseContainer[ 0 ] );
			}

			responseContainer = overwritten = undefined;
		} );

		// Delegate to script
		return "script";
	}
} );




// data: string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
	if ( !data || typeof data !== "string" ) {
		return null;
	}
	if ( typeof context === "boolean" ) {
		keepScripts = context;
		context = false;
	}
	context = context || document;

	var parsed = rsingleTag.exec( data ),
		scripts = !keepScripts && [];

	// Single tag
	if ( parsed ) {
		return [ context.createElement( parsed[ 1 ] ) ];
	}

	parsed = buildFragment( [ data ], context, scripts );

	if ( scripts && scripts.length ) {
		jQuery( scripts ).remove();
	}

	return jQuery.merge( [], parsed.childNodes );
};


// Keep a copy of the old load method
var _load = jQuery.fn.load;

/**
 * Load a url into a page
 */
jQuery.fn.load = function( url, params, callback ) {
	if ( typeof url !== "string" && _load ) {
		return _load.apply( this, arguments );
	}

	var selector, type, response,
		self = this,
		off = url.indexOf( " " );

	if ( off > -1 ) {
		selector = jQuery.trim( url.slice( off, url.length ) );
		url = url.slice( 0, off );
	}

	// If it's a function
	if ( jQuery.isFunction( params ) ) {

		// We assume that it's the callback
		callback = params;
		params = undefined;

	// Otherwise, build a param string
	} else if ( params && typeof params === "object" ) {
		type = "POST";
	}

	// If we have elements to modify, make the request
	if ( self.length > 0 ) {
		jQuery.ajax( {
			url: url,

			// If "type" variable is undefined, then "GET" method will be used.
			// Make value of this field explicit since
			// user can override it through ajaxSetup method
			type: type || "GET",
			dataType: "html",
			data: params
		} ).done( function( responseText ) {

			// Save response for use in complete callback
			response = arguments;

			self.html( selector ?

				// If a selector was specified, locate the right elements in a dummy div
				// Exclude scripts to avoid IE 'Permission Denied' errors
				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :

				// Otherwise use the full result
				responseText );

		// If the request succeeds, this function gets "data", "status", "jqXHR"
		// but they are ignored because response was set above.
		// If it fails, this function gets "jqXHR", "status", "error"
		} ).always( callback && function( jqXHR, status ) {
			self.each( function() {
				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
			} );
		} );
	}

	return this;
};




// Attach a bunch of functions for handling common AJAX events
jQuery.each( [
	"ajaxStart",
	"ajaxStop",
	"ajaxComplete",
	"ajaxError",
	"ajaxSuccess",
	"ajaxSend"
], function( i, type ) {
	jQuery.fn[ type ] = function( fn ) {
		return this.on( type, fn );
	};
} );




jQuery.expr.filters.animated = function( elem ) {
	return jQuery.grep( jQuery.timers, function( fn ) {
		return elem === fn.elem;
	} ).length;
};





/**
 * Gets a window from an element
 */
function getWindow( elem ) {
	return jQuery.isWindow( elem ) ?
		elem :
		elem.nodeType === 9 ?
			elem.defaultView || elem.parentWindow :
			false;
}

jQuery.offset = {
	setOffset: function( elem, options, i ) {
		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
			position = jQuery.css( elem, "position" ),
			curElem = jQuery( elem ),
			props = {};

		// set position first, in-case top/left are set even on static elem
		if ( position === "static" ) {
			elem.style.position = "relative";
		}

		curOffset = curElem.offset();
		curCSSTop = jQuery.css( elem, "top" );
		curCSSLeft = jQuery.css( elem, "left" );
		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
			jQuery.inArray( "auto", [ curCSSTop, curCSSLeft ] ) > -1;

		// need to be able to calculate position if either top or left
		// is auto and position is either absolute or fixed
		if ( calculatePosition ) {
			curPosition = curElem.position();
			curTop = curPosition.top;
			curLeft = curPosition.left;
		} else {
			curTop = parseFloat( curCSSTop ) || 0;
			curLeft = parseFloat( curCSSLeft ) || 0;
		}

		if ( jQuery.isFunction( options ) ) {

			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
		}

		if ( options.top != null ) {
			props.top = ( options.top - curOffset.top ) + curTop;
		}
		if ( options.left != null ) {
			props.left = ( options.left - curOffset.left ) + curLeft;
		}

		if ( "using" in options ) {
			options.using.call( elem, props );
		} else {
			curElem.css( props );
		}
	}
};

jQuery.fn.extend( {
	offset: function( options ) {
		if ( arguments.length ) {
			return options === undefined ?
				this :
				this.each( function( i ) {
					jQuery.offset.setOffset( this, options, i );
				} );
		}

		var docElem, win,
			box = { top: 0, left: 0 },
			elem = this[ 0 ],
			doc = elem && elem.ownerDocument;

		if ( !doc ) {
			return;
		}

		docElem = doc.documentElement;

		// Make sure it's not a disconnected DOM node
		if ( !jQuery.contains( docElem, elem ) ) {
			return box;
		}

		// If we don't have gBCR, just use 0,0 rather than error
		// BlackBerry 5, iOS 3 (original iPhone)
		if ( typeof elem.getBoundingClientRect !== "undefined" ) {
			box = elem.getBoundingClientRect();
		}
		win = getWindow( doc );
		return {
			top: box.top  + ( win.pageYOffset || docElem.scrollTop )  - ( docElem.clientTop  || 0 ),
			left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
		};
	},

	position: function() {
		if ( !this[ 0 ] ) {
			return;
		}

		var offsetParent, offset,
			parentOffset = { top: 0, left: 0 },
			elem = this[ 0 ];

		// Fixed elements are offset from window (parentOffset = {top:0, left: 0},
		// because it is its only offset parent
		if ( jQuery.css( elem, "position" ) === "fixed" ) {

			// we assume that getBoundingClientRect is available when computed position is fixed
			offset = elem.getBoundingClientRect();
		} else {

			// Get *real* offsetParent
			offsetParent = this.offsetParent();

			// Get correct offsets
			offset = this.offset();
			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
				parentOffset = offsetParent.offset();
			}

			// Add offsetParent borders
			parentOffset.top  += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
			parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
		}

		// Subtract parent offsets and element margins
		// note: when an element has margin: auto the offsetLeft and marginLeft
		// are the same in Safari causing offset.left to incorrectly be 0
		return {
			top:  offset.top  - parentOffset.top - jQuery.css( elem, "marginTop", true ),
			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
		};
	},

	offsetParent: function() {
		return this.map( function() {
			var offsetParent = this.offsetParent;

			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) &&
				jQuery.css( offsetParent, "position" ) === "static" ) ) {
				offsetParent = offsetParent.offsetParent;
			}
			return offsetParent || documentElement;
		} );
	}
} );

// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
	var top = /Y/.test( prop );

	jQuery.fn[ method ] = function( val ) {
		return access( this, function( elem, method, val ) {
			var win = getWindow( elem );

			if ( val === undefined ) {
				return win ? ( prop in win ) ? win[ prop ] :
					win.document.documentElement[ method ] :
					elem[ method ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : jQuery( win ).scrollLeft(),
					top ? val : jQuery( win ).scrollTop()
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length, null );
	};
} );

// Support: Safari<7-8+, Chrome<37-44+
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// getComputedStyle returns percent when specified for top/left/bottom/right
// rather than make the css module depend on the offset module, we just check for it here
jQuery.each( [ "top", "left" ], function( i, prop ) {
	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
		function( elem, computed ) {
			if ( computed ) {
				computed = curCSS( elem, prop );

				// if curCSS returns percentage, fallback to offset
				return rnumnonpx.test( computed ) ?
					jQuery( elem ).position()[ prop ] + "px" :
					computed;
			}
		}
	);
} );


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
	function( defaultExtra, funcName ) {

		// margin is only for outerHeight, outerWidth
		jQuery.fn[ funcName ] = function( margin, value ) {
			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

			return access( this, function( elem, type, value ) {
				var doc;

				if ( jQuery.isWindow( elem ) ) {

					// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
					// isn't a whole lot we can do. See pull request at this URL for discussion:
					// https://github.com/jquery/jquery/pull/764
					return elem.document.documentElement[ "client" + name ];
				}

				// Get document width or height
				if ( elem.nodeType === 9 ) {
					doc = elem.documentElement;

					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
					// whichever is greatest
					// unfortunately, this causes bug #3838 in IE6/8 only,
					// but there is currently no good, small way to fix it.
					return Math.max(
						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
						elem.body[ "offset" + name ], doc[ "offset" + name ],
						doc[ "client" + name ]
					);
				}

				return value === undefined ?

					// Get width or height on the element, requesting but not forcing parseFloat
					jQuery.css( elem, type, extra ) :

					// Set width or height on the element
					jQuery.style( elem, type, value, extra );
			}, type, chainable ? margin : undefined, chainable, null );
		};
	} );
} );


jQuery.fn.extend( {

	bind: function( types, data, fn ) {
		return this.on( types, null, data, fn );
	},
	unbind: function( types, fn ) {
		return this.off( types, null, fn );
	},

	delegate: function( selector, types, data, fn ) {
		return this.on( types, selector, data, fn );
	},
	undelegate: function( selector, types, fn ) {

		// ( namespace ) or ( selector, types [, fn] )
		return arguments.length === 1 ?
			this.off( selector, "**" ) :
			this.off( types, selector || "**", fn );
	}
} );

// The number of elements contained in the matched element set
jQuery.fn.size = function() {
	return this.length;
};

jQuery.fn.andSelf = jQuery.fn.addBack;




// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

if ( typeof define === "function" && define.amd ) {
	define( "jquery", [], function() {
		return jQuery;
	} );
}



var

	// Map over jQuery in case of overwrite
	_jQuery = window.jQuery,

	// Map over the $ in case of overwrite
	_$ = window.$;

jQuery.noConflict = function( deep ) {
	if ( window.$ === jQuery ) {
		window.$ = _$;
	}

	if ( deep && window.jQuery === jQuery ) {
		window.jQuery = _jQuery;
	}

	return jQuery;
};

// Expose jQuery and $ identifiers, even in
// AMD (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( !noGlobal ) {
	window.jQuery = window.$ = jQuery;
}

return jQuery;
}));
(function($, undefined) {

/**
 * Unobtrusive scripting adapter for jQuery
 * https://github.com/rails/jquery-ujs
 *
 * Requires jQuery 1.8.0 or later.
 *
 * Released under the MIT license
 *
 */

  // Cut down on the number of issues from people inadvertently including jquery_ujs twice
  // by detecting and raising an error when it happens.
  'use strict';

  if ( $.rails !== undefined ) {
    $.error('jquery-ujs has already been loaded!');
  }

  // Shorthand to make it a little easier to call public rails functions from within rails.js
  var rails;
  var $document = $(document);

  $.rails = rails = {
    // Link elements bound by jquery-ujs
    linkClickSelector: 'a[data-confirm], a[data-method], a[data-remote]:not([disabled]), a[data-disable-with], a[data-disable]',

    // Button elements bound by jquery-ujs
    buttonClickSelector: 'button[data-remote]:not([form]):not(form button), button[data-confirm]:not([form]):not(form button)',

    // Select elements bound by jquery-ujs
    inputChangeSelector: 'select[data-remote], input[data-remote], textarea[data-remote]',

    // Form elements bound by jquery-ujs
    formSubmitSelector: 'form',

    // Form input elements bound by jquery-ujs
    formInputClickSelector: 'form input[type=submit], form input[type=image], form button[type=submit], form button:not([type]), input[type=submit][form], input[type=image][form], button[type=submit][form], button[form]:not([type])',

    // Form input elements disabled during form submission
    disableSelector: 'input[data-disable-with]:enabled, button[data-disable-with]:enabled, textarea[data-disable-with]:enabled, input[data-disable]:enabled, button[data-disable]:enabled, textarea[data-disable]:enabled',

    // Form input elements re-enabled after form submission
    enableSelector: 'input[data-disable-with]:disabled, button[data-disable-with]:disabled, textarea[data-disable-with]:disabled, input[data-disable]:disabled, button[data-disable]:disabled, textarea[data-disable]:disabled',

    // Form required input elements
    requiredInputSelector: 'input[name][required]:not([disabled]), textarea[name][required]:not([disabled])',

    // Form file input elements
    fileInputSelector: 'input[name][type=file]:not([disabled])',

    // Link onClick disable selector with possible reenable after remote submission
    linkDisableSelector: 'a[data-disable-with], a[data-disable]',

    // Button onClick disable selector with possible reenable after remote submission
    buttonDisableSelector: 'button[data-remote][data-disable-with], button[data-remote][data-disable]',

    // Up-to-date Cross-Site Request Forgery token
    csrfToken: function() {
     return $('meta[name=csrf-token]').attr('content');
    },

    // URL param that must contain the CSRF token
    csrfParam: function() {
     return $('meta[name=csrf-param]').attr('content');
    },

    // Make sure that every Ajax request sends the CSRF token
    CSRFProtection: function(xhr) {
      var token = rails.csrfToken();
      if (token) xhr.setRequestHeader('X-CSRF-Token', token);
    },

    // Make sure that all forms have actual up-to-date tokens (cached forms contain old ones)
    refreshCSRFTokens: function(){
      $('form input[name="' + rails.csrfParam() + '"]').val(rails.csrfToken());
    },

    // Triggers an event on an element and returns false if the event result is false
    fire: function(obj, name, data) {
      var event = $.Event(name);
      obj.trigger(event, data);
      return event.result !== false;
    },

    // Default confirm dialog, may be overridden with custom confirm dialog in $.rails.confirm
    confirm: function(message) {
      return confirm(message);
    },

    // Default ajax function, may be overridden with custom function in $.rails.ajax
    ajax: function(options) {
      return $.ajax(options);
    },

    // Default way to get an element's href. May be overridden at $.rails.href.
    href: function(element) {
      return element[0].href;
    },

    // Checks "data-remote" if true to handle the request through a XHR request.
    isRemote: function(element) {
      return element.data('remote') !== undefined && element.data('remote') !== false;
    },

    // Submits "remote" forms and links with ajax
    handleRemote: function(element) {
      var method, url, data, withCredentials, dataType, options;

      if (rails.fire(element, 'ajax:before')) {
        withCredentials = element.data('with-credentials') || null;
        dataType = element.data('type') || ($.ajaxSettings && $.ajaxSettings.dataType);

        if (element.is('form')) {
          method = element.data('ujs:submit-button-formmethod') || element.attr('method');
          url = element.data('ujs:submit-button-formaction') || element.attr('action');
          data = $(element[0]).serializeArray();
          // memoized value from clicked submit button
          var button = element.data('ujs:submit-button');
          if (button) {
            data.push(button);
            element.data('ujs:submit-button', null);
          }
          element.data('ujs:submit-button-formmethod', null);
          element.data('ujs:submit-button-formaction', null);
        } else if (element.is(rails.inputChangeSelector)) {
          method = element.data('method');
          url = element.data('url');
          data = element.serialize();
          if (element.data('params')) data = data + '&' + element.data('params');
        } else if (element.is(rails.buttonClickSelector)) {
          method = element.data('method') || 'get';
          url = element.data('url');
          data = element.serialize();
          if (element.data('params')) data = data + '&' + element.data('params');
        } else {
          method = element.data('method');
          url = rails.href(element);
          data = element.data('params') || null;
        }

        options = {
          type: method || 'GET', data: data, dataType: dataType,
          // stopping the "ajax:beforeSend" event will cancel the ajax request
          beforeSend: function(xhr, settings) {
            if (settings.dataType === undefined) {
              xhr.setRequestHeader('accept', '*/*;q=0.5, ' + settings.accepts.script);
            }
            if (rails.fire(element, 'ajax:beforeSend', [xhr, settings])) {
              element.trigger('ajax:send', xhr);
            } else {
              return false;
            }
          },
          success: function(data, status, xhr) {
            element.trigger('ajax:success', [data, status, xhr]);
          },
          complete: function(xhr, status) {
            element.trigger('ajax:complete', [xhr, status]);
          },
          error: function(xhr, status, error) {
            element.trigger('ajax:error', [xhr, status, error]);
          },
          crossDomain: rails.isCrossDomain(url)
        };

        // There is no withCredentials for IE6-8 when
        // "Enable native XMLHTTP support" is disabled
        if (withCredentials) {
          options.xhrFields = {
            withCredentials: withCredentials
          };
        }

        // Only pass url to `ajax` options if not blank
        if (url) { options.url = url; }

        return rails.ajax(options);
      } else {
        return false;
      }
    },

    // Determines if the request is a cross domain request.
    isCrossDomain: function(url) {
      var originAnchor = document.createElement('a');
      originAnchor.href = location.href;
      var urlAnchor = document.createElement('a');

      try {
        urlAnchor.href = url;
        // This is a workaround to a IE bug.
        urlAnchor.href = urlAnchor.href;

        // If URL protocol is false or is a string containing a single colon
        // *and* host are false, assume it is not a cross-domain request
        // (should only be the case for IE7 and IE compatibility mode).
        // Otherwise, evaluate protocol and host of the URL against the origin
        // protocol and host.
        return !(((!urlAnchor.protocol || urlAnchor.protocol === ':') && !urlAnchor.host) ||
          (originAnchor.protocol + '//' + originAnchor.host ===
            urlAnchor.protocol + '//' + urlAnchor.host));
      } catch (e) {
        // If there is an error parsing the URL, assume it is crossDomain.
        return true;
      }
    },

    // Handles "data-method" on links such as:
    // <a href="/users/5" data-method="delete" rel="nofollow" data-confirm="Are you sure?">Delete</a>
    handleMethod: function(link) {
      var href = rails.href(link),
        method = link.data('method'),
        target = link.attr('target'),
        csrfToken = rails.csrfToken(),
        csrfParam = rails.csrfParam(),
        form = $('<form method="post" action="' + href + '"></form>'),
        metadataInput = '<input name="_method" value="' + method + '" type="hidden" />';

      if (csrfParam !== undefined && csrfToken !== undefined && !rails.isCrossDomain(href)) {
        metadataInput += '<input name="' + csrfParam + '" value="' + csrfToken + '" type="hidden" />';
      }

      if (target) { form.attr('target', target); }

      form.hide().append(metadataInput).appendTo('body');
      form.submit();
    },

    // Helper function that returns form elements that match the specified CSS selector
    // If form is actually a "form" element this will return associated elements outside the from that have
    // the html form attribute set
    formElements: function(form, selector) {
      return form.is('form') ? $(form[0].elements).filter(selector) : form.find(selector);
    },

    /* Disables form elements:
      - Caches element value in 'ujs:enable-with' data store
      - Replaces element text with value of 'data-disable-with' attribute
      - Sets disabled property to true
    */
    disableFormElements: function(form) {
      rails.formElements(form, rails.disableSelector).each(function() {
        rails.disableFormElement($(this));
      });
    },

    disableFormElement: function(element) {
      var method, replacement;

      method = element.is('button') ? 'html' : 'val';
      replacement = element.data('disable-with');

      if (replacement !== undefined) {
        element.data('ujs:enable-with', element[method]());
        element[method](replacement);
      }

      element.prop('disabled', true);
      element.data('ujs:disabled', true);
    },

    /* Re-enables disabled form elements:
      - Replaces element text with cached value from 'ujs:enable-with' data store (created in `disableFormElements`)
      - Sets disabled property to false
    */
    enableFormElements: function(form) {
      rails.formElements(form, rails.enableSelector).each(function() {
        rails.enableFormElement($(this));
      });
    },

    enableFormElement: function(element) {
      var method = element.is('button') ? 'html' : 'val';
      if (element.data('ujs:enable-with') !== undefined) {
        element[method](element.data('ujs:enable-with'));
        element.removeData('ujs:enable-with'); // clean up cache
      }
      element.prop('disabled', false);
      element.removeData('ujs:disabled');
    },

   /* For 'data-confirm' attribute:
      - Fires `confirm` event
      - Shows the confirmation dialog
      - Fires the `confirm:complete` event

      Returns `true` if no function stops the chain and user chose yes; `false` otherwise.
      Attaching a handler to the element's `confirm` event that returns a `falsy` value cancels the confirmation dialog.
      Attaching a handler to the element's `confirm:complete` event that returns a `falsy` value makes this function
      return false. The `confirm:complete` event is fired whether or not the user answered true or false to the dialog.
   */
    allowAction: function(element) {
      var message = element.data('confirm'),
          answer = false, callback;
      if (!message) { return true; }

      if (rails.fire(element, 'confirm')) {
        try {
          answer = rails.confirm(message);
        } catch (e) {
          (console.error || console.log).call(console, e.stack || e);
        }
        callback = rails.fire(element, 'confirm:complete', [answer]);
      }
      return answer && callback;
    },

    // Helper function which checks for blank inputs in a form that match the specified CSS selector
    blankInputs: function(form, specifiedSelector, nonBlank) {
      var foundInputs = $(),
        input,
        valueToCheck,
        radiosForNameWithNoneSelected,
        radioName,
        selector = specifiedSelector || 'input,textarea',
        requiredInputs = form.find(selector),
        checkedRadioButtonNames = {};

      requiredInputs.each(function() {
        input = $(this);
        if (input.is('input[type=radio]')) {

          // Don't count unchecked required radio as blank if other radio with same name is checked,
          // regardless of whether same-name radio input has required attribute or not. The spec
          // states https://www.w3.org/TR/html5/forms.html#the-required-attribute
          radioName = input.attr('name');

          // Skip if we've already seen the radio with this name.
          if (!checkedRadioButtonNames[radioName]) {

            // If none checked
            if (form.find('input[type=radio]:checked[name="' + radioName + '"]').length === 0) {
              radiosForNameWithNoneSelected = form.find(
                'input[type=radio][name="' + radioName + '"]');
              foundInputs = foundInputs.add(radiosForNameWithNoneSelected);
            }

            // We only need to check each name once.
            checkedRadioButtonNames[radioName] = radioName;
          }
        } else {
          valueToCheck = input.is('input[type=checkbox],input[type=radio]') ? input.is(':checked') : !!input.val();
          if (valueToCheck === nonBlank) {
            foundInputs = foundInputs.add(input);
          }
        }
      });
      return foundInputs.length ? foundInputs : false;
    },

    // Helper function which checks for non-blank inputs in a form that match the specified CSS selector
    nonBlankInputs: function(form, specifiedSelector) {
      return rails.blankInputs(form, specifiedSelector, true); // true specifies nonBlank
    },

    // Helper function, needed to provide consistent behavior in IE
    stopEverything: function(e) {
      $(e.target).trigger('ujs:everythingStopped');
      e.stopImmediatePropagation();
      return false;
    },

    //  Replace element's html with the 'data-disable-with' after storing original html
    //  and prevent clicking on it
    disableElement: function(element) {
      var replacement = element.data('disable-with');

      if (replacement !== undefined) {
        element.data('ujs:enable-with', element.html()); // store enabled state
        element.html(replacement);
      }

      element.bind('click.railsDisable', function(e) { // prevent further clicking
        return rails.stopEverything(e);
      });
      element.data('ujs:disabled', true);
    },

    // Restore element to its original state which was disabled by 'disableElement' above
    enableElement: function(element) {
      if (element.data('ujs:enable-with') !== undefined) {
        element.html(element.data('ujs:enable-with')); // set to old enabled state
        element.removeData('ujs:enable-with'); // clean up cache
      }
      element.unbind('click.railsDisable'); // enable element
      element.removeData('ujs:disabled');
    }
  };

  if (rails.fire($document, 'rails:attachBindings')) {

    $.ajaxPrefilter(function(options, originalOptions, xhr){ if ( !options.crossDomain ) { rails.CSRFProtection(xhr); }});

    // This event works the same as the load event, except that it fires every
    // time the page is loaded.
    //
    // See https://github.com/rails/jquery-ujs/issues/357
    // See https://developer.mozilla.org/en-US/docs/Using_Firefox_1.5_caching
    $(window).on('pageshow.rails', function () {
      $($.rails.enableSelector).each(function () {
        var element = $(this);

        if (element.data('ujs:disabled')) {
          $.rails.enableFormElement(element);
        }
      });

      $($.rails.linkDisableSelector).each(function () {
        var element = $(this);

        if (element.data('ujs:disabled')) {
          $.rails.enableElement(element);
        }
      });
    });

    $document.on('ajax:complete', rails.linkDisableSelector, function() {
        rails.enableElement($(this));
    });

    $document.on('ajax:complete', rails.buttonDisableSelector, function() {
        rails.enableFormElement($(this));
    });

    $document.on('click.rails', rails.linkClickSelector, function(e) {
      var link = $(this), method = link.data('method'), data = link.data('params'), metaClick = e.metaKey || e.ctrlKey;
      if (!rails.allowAction(link)) return rails.stopEverything(e);

      if (!metaClick && link.is(rails.linkDisableSelector)) rails.disableElement(link);

      if (rails.isRemote(link)) {
        if (metaClick && (!method || method === 'GET') && !data) { return true; }

        var handleRemote = rails.handleRemote(link);
        // Response from rails.handleRemote() will either be false or a deferred object promise.
        if (handleRemote === false) {
          rails.enableElement(link);
        } else {
          handleRemote.fail( function() { rails.enableElement(link); } );
        }
        return false;

      } else if (method) {
        rails.handleMethod(link);
        return false;
      }
    });

    $document.on('click.rails', rails.buttonClickSelector, function(e) {
      var button = $(this);

      if (!rails.allowAction(button) || !rails.isRemote(button)) return rails.stopEverything(e);

      if (button.is(rails.buttonDisableSelector)) rails.disableFormElement(button);

      var handleRemote = rails.handleRemote(button);
      // Response from rails.handleRemote() will either be false or a deferred object promise.
      if (handleRemote === false) {
        rails.enableFormElement(button);
      } else {
        handleRemote.fail( function() { rails.enableFormElement(button); } );
      }
      return false;
    });

    $document.on('change.rails', rails.inputChangeSelector, function(e) {
      var link = $(this);
      if (!rails.allowAction(link) || !rails.isRemote(link)) return rails.stopEverything(e);

      rails.handleRemote(link);
      return false;
    });

    $document.on('submit.rails', rails.formSubmitSelector, function(e) {
      var form = $(this),
        remote = rails.isRemote(form),
        blankRequiredInputs,
        nonBlankFileInputs;

      if (!rails.allowAction(form)) return rails.stopEverything(e);

      // Skip other logic when required values are missing or file upload is present
      if (form.attr('novalidate') === undefined) {
        if (form.data('ujs:formnovalidate-button') === undefined) {
          blankRequiredInputs = rails.blankInputs(form, rails.requiredInputSelector, false);
          if (blankRequiredInputs && rails.fire(form, 'ajax:aborted:required', [blankRequiredInputs])) {
            return rails.stopEverything(e);
          }
        } else {
          // Clear the formnovalidate in case the next button click is not on a formnovalidate button
          // Not strictly necessary to do here, since it is also reset on each button click, but just to be certain
          form.data('ujs:formnovalidate-button', undefined);
        }
      }

      if (remote) {
        nonBlankFileInputs = rails.nonBlankInputs(form, rails.fileInputSelector);
        if (nonBlankFileInputs) {
          // Slight timeout so that the submit button gets properly serialized
          // (make it easy for event handler to serialize form without disabled values)
          setTimeout(function(){ rails.disableFormElements(form); }, 13);
          var aborted = rails.fire(form, 'ajax:aborted:file', [nonBlankFileInputs]);

          // Re-enable form elements if event bindings return false (canceling normal form submission)
          if (!aborted) { setTimeout(function(){ rails.enableFormElements(form); }, 13); }

          return aborted;
        }

        rails.handleRemote(form);
        return false;

      } else {
        // Slight timeout so that the submit button gets properly serialized
        setTimeout(function(){ rails.disableFormElements(form); }, 13);
      }
    });

    $document.on('click.rails', rails.formInputClickSelector, function(event) {
      var button = $(this);

      if (!rails.allowAction(button)) return rails.stopEverything(event);

      // Register the pressed submit button
      var name = button.attr('name'),
        data = name ? {name:name, value:button.val()} : null;

      var form = button.closest('form');
      if (form.length === 0) {
        form = $('#' + button.attr('form'));
      }
      form.data('ujs:submit-button', data);

      // Save attributes from button
      form.data('ujs:formnovalidate-button', button.attr('formnovalidate'));
      form.data('ujs:submit-button-formaction', button.attr('formaction'));
      form.data('ujs:submit-button-formmethod', button.attr('formmethod'));
    });

    $document.on('ajax:send.rails', rails.formSubmitSelector, function(event) {
      if (this === event.target) rails.disableFormElements($(this));
    });

    $document.on('ajax:complete.rails', rails.formSubmitSelector, function(event) {
      if (this === event.target) rails.enableFormElements($(this));
    });

    $(function(){
      rails.refreshCSRFTokens();
    });
  }

})( jQuery );
/**
*
* jquery.sparkline.js
*
* v2.1.1
* (c) Splunk, Inc
* Contact: Gareth Watts (gareth@splunk.com)
* http://omnipotent.net/jquery.sparkline/
*
* Generates inline sparkline charts from data supplied either to the method
* or inline in HTML
*
* Compatible with Internet Explorer 6.0+ and modern browsers equipped with the canvas tag
* (Firefox 2.0+, Safari, Opera, etc)
*
* License: New BSD License
*
* Copyright (c) 2012, Splunk Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
*     * Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright notice,
*       this list of conditions and the following disclaimer in the documentation
*       and/or other materials provided with the distribution.
*     * Neither the name of Splunk Inc nor the names of its contributors may
*       be used to endorse or promote products derived from this software without
*       specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* Usage:
*  $(selector).sparkline(values, options)
*
* If values is undefined or set to 'html' then the data values are read from the specified tag:
*   <p>Sparkline: <span class="sparkline">1,4,6,6,8,5,3,5</span></p>
*   $('.sparkline').sparkline();
* There must be no spaces in the enclosed data set
*
* Otherwise values must be an array of numbers or null values
*    <p>Sparkline: <span id="sparkline1">This text replaced if the browser is compatible</span></p>
*    $('#sparkline1').sparkline([1,4,6,6,8,5,3,5])
*    $('#sparkline2').sparkline([1,4,6,null,null,5,3,5])
*
* Values can also be specified in an HTML comment, or as a values attribute:
*    <p>Sparkline: <span class="sparkline"><!--1,4,6,6,8,5,3,5 --></span></p>
*    <p>Sparkline: <span class="sparkline" values="1,4,6,6,8,5,3,5"></span></p>
*    $('.sparkline').sparkline();
*
* For line charts, x values can also be specified:
*   <p>Sparkline: <span class="sparkline">1:1,2.7:4,3.4:6,5:6,6:8,8.7:5,9:3,10:5</span></p>
*    $('#sparkline1').sparkline([ [1,1], [2.7,4], [3.4,6], [5,6], [6,8], [8.7,5], [9,3], [10,5] ])
*
* By default, options should be passed in as teh second argument to the sparkline function:
*   $('.sparkline').sparkline([1,2,3,4], {type: 'bar'})
*
* Options can also be set by passing them on the tag itself.  This feature is disabled by default though
* as there's a slight performance overhead:
*   $('.sparkline').sparkline([1,2,3,4], {enableTagOptions: true})
*   <p>Sparkline: <span class="sparkline" sparkType="bar" sparkBarColor="red">loading</span></p>
* Prefix all options supplied as tag attribute with "spark" (configurable by setting tagOptionPrefix)
*
* Supported options:
*   lineColor - Color of the line used for the chart
*   fillColor - Color used to fill in the chart - Set to '' or false for a transparent chart
*   width - Width of the chart - Defaults to 3 times the number of values in pixels
*   height - Height of the chart - Defaults to the height of the containing element
*   chartRangeMin - Specify the minimum value to use for the Y range of the chart - Defaults to the minimum value supplied
*   chartRangeMax - Specify the maximum value to use for the Y range of the chart - Defaults to the maximum value supplied
*   chartRangeClip - Clip out of range values to the max/min specified by chartRangeMin and chartRangeMax
*   chartRangeMinX - Specify the minimum value to use for the X range of the chart - Defaults to the minimum value supplied
*   chartRangeMaxX - Specify the maximum value to use for the X range of the chart - Defaults to the maximum value supplied
*   composite - If true then don't erase any existing chart attached to the tag, but draw
*           another chart over the top - Note that width and height are ignored if an
*           existing chart is detected.
*   tagValuesAttribute - Name of tag attribute to check for data values - Defaults to 'values'
*   enableTagOptions - Whether to check tags for sparkline options
*   tagOptionPrefix - Prefix used for options supplied as tag attributes - Defaults to 'spark'
*   disableHiddenCheck - If set to true, then the plugin will assume that charts will never be drawn into a
*           hidden dom element, avoding a browser reflow
*   disableInteraction - If set to true then all mouseover/click interaction behaviour will be disabled,
*       making the plugin perform much like it did in 1.x
*   disableTooltips - If set to true then tooltips will be disabled - Defaults to false (tooltips enabled)
*   disableHighlight - If set to true then highlighting of selected chart elements on mouseover will be disabled
*       defaults to false (highlights enabled)
*   highlightLighten - Factor to lighten/darken highlighted chart values by - Defaults to 1.4 for a 40% increase
*   tooltipContainer - Specify which DOM element the tooltip should be rendered into - defaults to document.body
*   tooltipClassname - Optional CSS classname to apply to tooltips - If not specified then a default style will be applied
*   tooltipOffsetX - How many pixels away from the mouse pointer to render the tooltip on the X axis
*   tooltipOffsetY - How many pixels away from the mouse pointer to render the tooltip on the r axis
*   tooltipFormatter  - Optional callback that allows you to override the HTML displayed in the tooltip
*       callback is given arguments of (sparkline, options, fields)
*   tooltipChartTitle - If specified then the tooltip uses the string specified by this setting as a title
*   tooltipFormat - A format string or SPFormat object  (or an array thereof for multiple entries)
*       to control the format of the tooltip
*   tooltipPrefix - A string to prepend to each field displayed in a tooltip
*   tooltipSuffix - A string to append to each field displayed in a tooltip
*   tooltipSkipNull - If true then null values will not have a tooltip displayed (defaults to true)
*   tooltipValueLookups - An object or range map to map field values to tooltip strings
*       (eg. to map -1 to "Lost", 0 to "Draw", and 1 to "Win")
*   numberFormatter - Optional callback for formatting numbers in tooltips
*   numberDigitGroupSep - Character to use for group separator in numbers "1,234" - Defaults to ","
*   numberDecimalMark - Character to use for the decimal point when formatting numbers - Defaults to "."
*   numberDigitGroupCount - Number of digits between group separator - Defaults to 3
*
* There are 7 types of sparkline, selected by supplying a "type" option of 'line' (default),
* 'bar', 'tristate', 'bullet', 'discrete', 'pie' or 'box'
*    line - Line chart.  Options:
*       spotColor - Set to '' to not end each line in a circular spot
*       minSpotColor - If set, color of spot at minimum value
*       maxSpotColor - If set, color of spot at maximum value
*       spotRadius - Radius in pixels
*       lineWidth - Width of line in pixels
*       normalRangeMin
*       normalRangeMax - If set draws a filled horizontal bar between these two values marking the "normal"
*                      or expected range of values
*       normalRangeColor - Color to use for the above bar
*       drawNormalOnTop - Draw the normal range above the chart fill color if true
*       defaultPixelsPerValue - Defaults to 3 pixels of width for each value in the chart
*       highlightSpotColor - The color to use for drawing a highlight spot on mouseover - Set to null to disable
*       highlightLineColor - The color to use for drawing a highlight line on mouseover - Set to null to disable
*       valueSpots - Specify which points to draw spots on, and in which color.  Accepts a range map
*
*   bar - Bar chart.  Options:
*       barColor - Color of bars for postive values
*       negBarColor - Color of bars for negative values
*       zeroColor - Color of bars with zero values
*       nullColor - Color of bars with null values - Defaults to omitting the bar entirely
*       barWidth - Width of bars in pixels
*       colorMap - Optional mappnig of values to colors to override the *BarColor values above
*                  can be an Array of values to control the color of individual bars or a range map
*                  to specify colors for individual ranges of values
*       barSpacing - Gap between bars in pixels
*       zeroAxis - Centers the y-axis around zero if true
*
*   tristate - Charts values of win (>0), lose (<0) or draw (=0)
*       posBarColor - Color of win values
*       negBarColor - Color of lose values
*       zeroBarColor - Color of draw values
*       barWidth - Width of bars in pixels
*       barSpacing - Gap between bars in pixels
*       colorMap - Optional mappnig of values to colors to override the *BarColor values above
*                  can be an Array of values to control the color of individual bars or a range map
*                  to specify colors for individual ranges of values
*
*   discrete - Options:
*       lineHeight - Height of each line in pixels - Defaults to 30% of the graph height
*       thesholdValue - Values less than this value will be drawn using thresholdColor instead of lineColor
*       thresholdColor
*
*   bullet - Values for bullet graphs msut be in the order: target, performance, range1, range2, range3, ...
*       options:
*       targetColor - The color of the vertical target marker
*       targetWidth - The width of the target marker in pixels
*       performanceColor - The color of the performance measure horizontal bar
*       rangeColors - Colors to use for each qualitative range background color
*
*   pie - Pie chart. Options:
*       sliceColors - An array of colors to use for pie slices
*       offset - Angle in degrees to offset the first slice - Try -90 or +90
*       borderWidth - Width of border to draw around the pie chart, in pixels - Defaults to 0 (no border)
*       borderColor - Color to use for the pie chart border - Defaults to #000
*
*   box - Box plot. Options:
*       raw - Set to true to supply pre-computed plot points as values
*             values should be: low_outlier, low_whisker, q1, median, q3, high_whisker, high_outlier
*             When set to false you can supply any number of values and the box plot will
*             be computed for you.  Default is false.
*       showOutliers - Set to true (default) to display outliers as circles
*       outlierIQR - Interquartile range used to determine outliers.  Default 1.5
*       boxLineColor - Outline color of the box
*       boxFillColor - Fill color for the box
*       whiskerColor - Line color used for whiskers
*       outlierLineColor - Outline color of outlier circles
*       outlierFillColor - Fill color of the outlier circles
*       spotRadius - Radius of outlier circles
*       medianColor - Line color of the median line
*       target - Draw a target cross hair at the supplied value (default undefined)
*
*
*
*   Examples:
*   $('#sparkline1').sparkline(myvalues, { lineColor: '#f00', fillColor: false });
*   $('.barsparks').sparkline('html', { type:'bar', height:'40px', barWidth:5 });
*   $('#tristate').sparkline([1,1,-1,1,0,0,-1], { type:'tristate' }):
*   $('#discrete').sparkline([1,3,4,5,5,3,4,5], { type:'discrete' });
*   $('#bullet').sparkline([10,12,12,9,7], { type:'bullet' });
*   $('#pie').sparkline([1,1,2], { type:'pie' });
*/

/*jslint regexp: true, browser: true, jquery: true, white: true, nomen: false, plusplus: false, maxerr: 500, indent: 4 */


(function(factory) {
    if(typeof define === 'function' && define.amd) {
    define(['jquery'], factory);
  }
  else {
    factory(jQuery);
  }
}
(function($) {
    'use strict';

    var UNSET_OPTION = {},
        getDefaults, createClass, SPFormat, clipval, quartile, normalizeValue, normalizeValues,
        remove, isNumber, all, sum, addCSS, ensureArray, formatNumber, RangeMap,
        MouseHandler, Tooltip, barHighlightMixin,
        line, bar, tristate, discrete, bullet, pie, box, defaultStyles, initStyles,
        VShape, VCanvas_base, VCanvas_canvas, VCanvas_vml, pending, shapeCount = 0;

    /**
     * Default configuration settings
     */
    getDefaults = function () {
        return {
            // Settings common to most/all chart types
            common: {
                type: 'line',
                lineColor: '#00f',
                fillColor: '#cdf',
                defaultPixelsPerValue: 3,
                width: 'auto',
                height: 'auto',
                composite: false,
                tagValuesAttribute: 'values',
                tagOptionsPrefix: 'spark',
                enableTagOptions: false,
                enableHighlight: true,
                highlightLighten: 1.4,
                tooltipSkipNull: true,
                tooltipPrefix: '',
                tooltipSuffix: '',
                disableHiddenCheck: false,
                numberFormatter: false,
                numberDigitGroupCount: 3,
                numberDigitGroupSep: ',',
                numberDecimalMark: '.',
                disableTooltips: false,
                disableInteraction: false
            },
            // Defaults for line charts
            line: {
                spotColor: '#f80',
                highlightSpotColor: '#5f5',
                highlightLineColor: '#f22',
                spotRadius: 1.5,
                minSpotColor: '#f80',
                maxSpotColor: '#f80',
                lineWidth: 1,
                normalRangeMin: undefined,
                normalRangeMax: undefined,
                normalRangeColor: '#ccc',
                drawNormalOnTop: false,
                chartRangeMin: undefined,
                chartRangeMax: undefined,
                chartRangeMinX: undefined,
                chartRangeMaxX: undefined,
                tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{prefix}}{{y}}{{suffix}}')
            },
            // Defaults for bar charts
            bar: {
                barColor: '#3366cc',
                negBarColor: '#f44',
                stackedBarColor: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
                    '#dd4477', '#0099c6', '#990099'],
                zeroColor: undefined,
                nullColor: undefined,
                zeroAxis: true,
                barWidth: 4,
                barSpacing: 1,
                chartRangeMax: undefined,
                chartRangeMin: undefined,
                chartRangeClip: false,
                colorMap: undefined,
                tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{prefix}}{{value}}{{suffix}}')
            },
            // Defaults for tristate charts
            tristate: {
                barWidth: 4,
                barSpacing: 1,
                posBarColor: '#6f6',
                negBarColor: '#f44',
                zeroBarColor: '#999',
                colorMap: {},
                tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value:map}}'),
                tooltipValueLookups: { map: { '-1': 'Loss', '0': 'Draw', '1': 'Win' } }
            },
            // Defaults for discrete charts
            discrete: {
                lineHeight: 'auto',
                thresholdColor: undefined,
                thresholdValue: 0,
                chartRangeMax: undefined,
                chartRangeMin: undefined,
                chartRangeClip: false,
                tooltipFormat: new SPFormat('{{prefix}}{{value}}{{suffix}}')
            },
            // Defaults for bullet charts
            bullet: {
                targetColor: '#f33',
                targetWidth: 3, // width of the target bar in pixels
                performanceColor: '#33f',
                rangeColors: ['#d3dafe', '#a8b6ff', '#7f94ff'],
                base: undefined, // set this to a number to change the base start number
                tooltipFormat: new SPFormat('{{fieldkey:fields}} - {{value}}'),
                tooltipValueLookups: { fields: {r: 'Range', p: 'Performance', t: 'Target'} }
            },
            // Defaults for pie charts
            pie: {
                offset: 0,
                sliceColors: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
                    '#dd4477', '#0099c6', '#990099'],
                borderWidth: 0,
                borderColor: '#000',
                tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value}} ({{percent.1}}%)')
            },
            // Defaults for box plots
            box: {
                raw: false,
                boxLineColor: '#000',
                boxFillColor: '#cdf',
                whiskerColor: '#000',
                outlierLineColor: '#333',
                outlierFillColor: '#fff',
                medianColor: '#f00',
                showOutliers: true,
                outlierIQR: 1.5,
                spotRadius: 1.5,
                target: undefined,
                targetColor: '#4a2',
                chartRangeMax: undefined,
                chartRangeMin: undefined,
                tooltipFormat: new SPFormat('{{field:fields}}: {{value}}'),
                tooltipFormatFieldlistKey: 'field',
                tooltipValueLookups: { fields: { lq: 'Lower Quartile', med: 'Median',
                    uq: 'Upper Quartile', lo: 'Left Outlier', ro: 'Right Outlier',
                    lw: 'Left Whisker', rw: 'Right Whisker'} }
            }
        };
    };

    // You can have tooltips use a css class other than jqstooltip by specifying tooltipClassname
    defaultStyles = '.jqstooltip { ' +
            'position: absolute;' +
            'left: 0px;' +
            'top: 0px;' +
            'visibility: hidden;' +
            'background: rgb(0, 0, 0) transparent;' +
            'background-color: rgba(0,0,0,0.6);' +
            'filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000);' +
            '-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000)";' +
            'color: white;' +
            'font: 10px arial, san serif;' +
            'text-align: left;' +
            'white-space: nowrap;' +
            'padding: 5px;' +
            'border: 1px solid white;' +
            'z-index: 10000;' +
            '}' +
            '.jqsfield { ' +
            'color: white;' +
            'font: 10px arial, san serif;' +
            'text-align: left;' +
            '}';

    /**
     * Utilities
     */

    createClass = function (/* [baseclass, [mixin, ...]], definition */) {
        var Class, args;
        Class = function () {
            this.init.apply(this, arguments);
        };
        if (arguments.length > 1) {
            if (arguments[0]) {
                Class.prototype = $.extend(new arguments[0](), arguments[arguments.length - 1]);
                Class._super = arguments[0].prototype;
            } else {
                Class.prototype = arguments[arguments.length - 1];
            }
            if (arguments.length > 2) {
                args = Array.prototype.slice.call(arguments, 1, -1);
                args.unshift(Class.prototype);
                $.extend.apply($, args);
            }
        } else {
            Class.prototype = arguments[0];
        }
        Class.prototype.cls = Class;
        return Class;
    };

    /**
     * Wraps a format string for tooltips
     * {{x}}
     * {{x.2}
     * {{x:months}}
     */
    $.SPFormatClass = SPFormat = createClass({
        fre: /\{\{([\w.]+?)(:(.+?))?\}\}/g,
        precre: /(\w+)\.(\d+)/,

        init: function (format, fclass) {
            this.format = format;
            this.fclass = fclass;
        },

        render: function (fieldset, lookups, options) {
            var self = this,
                fields = fieldset,
                match, token, lookupkey, fieldvalue, prec;
            return this.format.replace(this.fre, function () {
                var lookup;
                token = arguments[1];
                lookupkey = arguments[3];
                match = self.precre.exec(token);
                if (match) {
                    prec = match[2];
                    token = match[1];
                } else {
                    prec = false;
                }
                fieldvalue = fields[token];
                if (fieldvalue === undefined) {
                    return '';
                }
                if (lookupkey && lookups && lookups[lookupkey]) {
                    lookup = lookups[lookupkey];
                    if (lookup.get) { // RangeMap
                        return lookups[lookupkey].get(fieldvalue) || fieldvalue;
                    } else {
                        return lookups[lookupkey][fieldvalue] || fieldvalue;
                    }
                }
                if (isNumber(fieldvalue)) {
                    if (options.get('numberFormatter')) {
                        fieldvalue = options.get('numberFormatter')(fieldvalue);
                    } else {
                        fieldvalue = formatNumber(fieldvalue, prec,
                            options.get('numberDigitGroupCount'),
                            options.get('numberDigitGroupSep'),
                            options.get('numberDecimalMark'));
                    }
                }
                return fieldvalue;
            });
        }
    });

    // convience method to avoid needing the new operator
    $.spformat = function(format, fclass) {
        return new SPFormat(format, fclass);
    };

    clipval = function (val, min, max) {
        if (val < min) {
            return min;
        }
        if (val > max) {
            return max;
        }
        return val;
    };

    quartile = function (values, q) {
        var vl;
        if (q === 2) {
            vl = Math.floor(values.length / 2);
            return values.length % 2 ? values[vl] : (values[vl-1] + values[vl]) / 2;
        } else {
            if (values.length % 2 ) { // odd
                vl = (values.length * q + q) / 4;
                return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 : values[vl-1];
            } else { //even
                vl = (values.length * q + 2) / 4;
                return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 :  values[vl-1];

            }
        }
    };

    normalizeValue = function (val) {
        var nf;
        switch (val) {
            case 'undefined':
                val = undefined;
                break;
            case 'null':
                val = null;
                break;
            case 'true':
                val = true;
                break;
            case 'false':
                val = false;
                break;
            default:
                nf = parseFloat(val);
                if (val == nf) {
                    val = nf;
                }
        }
        return val;
    };

    normalizeValues = function (vals) {
        var i, result = [];
        for (i = vals.length; i--;) {
            result[i] = normalizeValue(vals[i]);
        }
        return result;
    };

    remove = function (vals, filter) {
        var i, vl, result = [];
        for (i = 0, vl = vals.length; i < vl; i++) {
            if (vals[i] !== filter) {
                result.push(vals[i]);
            }
        }
        return result;
    };

    isNumber = function (num) {
        return !isNaN(parseFloat(num)) && isFinite(num);
    };

    formatNumber = function (num, prec, groupsize, groupsep, decsep) {
        var p, i;
        num = (prec === false ? parseFloat(num).toString() : num.toFixed(prec)).split('');
        p = (p = $.inArray('.', num)) < 0 ? num.length : p;
        if (p < num.length) {
            num[p] = decsep;
        }
        for (i = p - groupsize; i > 0; i -= groupsize) {
            num.splice(i, 0, groupsep);
        }
        return num.join('');
    };

    // determine if all values of an array match a value
    // returns true if the array is empty
    all = function (val, arr, ignoreNull) {
        var i;
        for (i = arr.length; i--; ) {
            if (ignoreNull && arr[i] === null) continue;
            if (arr[i] !== val) {
                return false;
            }
        }
        return true;
    };

    // sums the numeric values in an array, ignoring other values
    sum = function (vals) {
        var total = 0, i;
        for (i = vals.length; i--;) {
            total += typeof vals[i] === 'number' ? vals[i] : 0;
        }
        return total;
    };

    ensureArray = function (val) {
        return $.isArray(val) ? val : [val];
    };

    // http://paulirish.com/2008/bookmarklet-inject-new-css-rules/
    addCSS = function(css) {
        var tag;
        //if ('\v' == 'v') /* ie only */ {
        if (document.createStyleSheet) {
            document.createStyleSheet().cssText = css;
        } else {
            tag = document.createElement('style');
            tag.type = 'text/css';
            document.getElementsByTagName('head')[0].appendChild(tag);
            tag[(typeof document.body.style.WebkitAppearance == 'string') /* webkit only */ ? 'innerText' : 'innerHTML'] = css;
        }
    };

    // Provide a cross-browser interface to a few simple drawing primitives
    $.fn.simpledraw = function (width, height, useExisting, interact) {
        var target, mhandler;
        if (useExisting && (target = this.data('_jqs_vcanvas'))) {
            return target;
        }
        if (width === undefined) {
            width = $(this).innerWidth();
        }
        if (height === undefined) {
            height = $(this).innerHeight();
        }
        if ($.fn.sparkline.hasCanvas) {
            target = new VCanvas_canvas(width, height, this, interact);
        } else if ($.fn.sparkline.hasVML) {
            target = new VCanvas_vml(width, height, this);
        } else {
            return false;
        }
        mhandler = $(this).data('_jqs_mhandler');
        if (mhandler) {
            mhandler.registerCanvas(target);
        }
        return target;
    };

    $.fn.cleardraw = function () {
        var target = this.data('_jqs_vcanvas');
        if (target) {
            target.reset();
        }
    };

    $.RangeMapClass = RangeMap = createClass({
        init: function (map) {
            var key, range, rangelist = [];
            for (key in map) {
                if (map.hasOwnProperty(key) && typeof key === 'string' && key.indexOf(':') > -1) {
                    range = key.split(':');
                    range[0] = range[0].length === 0 ? -Infinity : parseFloat(range[0]);
                    range[1] = range[1].length === 0 ? Infinity : parseFloat(range[1]);
                    range[2] = map[key];
                    rangelist.push(range);
                }
            }
            this.map = map;
            this.rangelist = rangelist || false;
        },

        get: function (value) {
            var rangelist = this.rangelist,
                i, range, result;
            if ((result = this.map[value]) !== undefined) {
                return result;
            }
            if (rangelist) {
                for (i = rangelist.length; i--;) {
                    range = rangelist[i];
                    if (range[0] <= value && range[1] >= value) {
                        return range[2];
                    }
                }
            }
            return undefined;
        }
    });

    // Convenience function
    $.range_map = function(map) {
        return new RangeMap(map);
    };

    MouseHandler = createClass({
        init: function (el, options) {
            var $el = $(el);
            this.$el = $el;
            this.options = options;
            this.currentPageX = 0;
            this.currentPageY = 0;
            this.el = el;
            this.splist = [];
            this.tooltip = null;
            this.over = false;
            this.displayTooltips = !options.get('disableTooltips');
            this.highlightEnabled = !options.get('disableHighlight');
        },

        registerSparkline: function (sp) {
            this.splist.push(sp);
            if (this.over) {
                this.updateDisplay();
            }
        },

        registerCanvas: function (canvas) {
            var $canvas = $(canvas.canvas);
            this.canvas = canvas;
            this.$canvas = $canvas;
            $canvas.mouseenter($.proxy(this.mouseenter, this));
            $canvas.mouseleave($.proxy(this.mouseleave, this));
            $canvas.click($.proxy(this.mouseclick, this));
        },

        reset: function (removeTooltip) {
            this.splist = [];
            if (this.tooltip && removeTooltip) {
                this.tooltip.remove();
                this.tooltip = undefined;
            }
        },

        mouseclick: function (e) {
            var clickEvent = $.Event('sparklineClick');
            clickEvent.originalEvent = e;
            clickEvent.sparklines = this.splist;
            this.$el.trigger(clickEvent);
        },

        mouseenter: function (e) {
            $(document.body).unbind('mousemove.jqs');
            $(document.body).bind('mousemove.jqs', $.proxy(this.mousemove, this));
            this.over = true;
            this.currentPageX = e.pageX;
            this.currentPageY = e.pageY;
            this.currentEl = e.target;
            if (!this.tooltip && this.displayTooltips) {
                this.tooltip = new Tooltip(this.options);
                this.tooltip.updatePosition(e.pageX, e.pageY);
            }
            this.updateDisplay();
        },

        mouseleave: function () {
            $(document.body).unbind('mousemove.jqs');
            var splist = this.splist,
                 spcount = splist.length,
                 needsRefresh = false,
                 sp, i;
            this.over = false;
            this.currentEl = null;

            if (this.tooltip) {
                this.tooltip.remove();
                this.tooltip = null;
            }

            for (i = 0; i < spcount; i++) {
                sp = splist[i];
                if (sp.clearRegionHighlight()) {
                    needsRefresh = true;
                }
            }

            if (needsRefresh) {
                this.canvas.render();
            }
        },

        mousemove: function (e) {
            this.currentPageX = e.pageX;
            this.currentPageY = e.pageY;
            this.currentEl = e.target;
            if (this.tooltip) {
                this.tooltip.updatePosition(e.pageX, e.pageY);
            }
            this.updateDisplay();
        },

        updateDisplay: function () {
            var splist = this.splist,
                 spcount = splist.length,
                 needsRefresh = false,
                 offset = this.$canvas.offset(),
                 localX = this.currentPageX - offset.left,
                 localY = this.currentPageY - offset.top,
                 tooltiphtml, sp, i, result, changeEvent;
            if (!this.over) {
                return;
            }
            for (i = 0; i < spcount; i++) {
                sp = splist[i];
                result = sp.setRegionHighlight(this.currentEl, localX, localY);
                if (result) {
                    needsRefresh = true;
                }
            }
            if (needsRefresh) {
                changeEvent = $.Event('sparklineRegionChange');
                changeEvent.sparklines = this.splist;
                this.$el.trigger(changeEvent);
                if (this.tooltip) {
                    tooltiphtml = '';
                    for (i = 0; i < spcount; i++) {
                        sp = splist[i];
                        tooltiphtml += sp.getCurrentRegionTooltip();
                    }
                    this.tooltip.setContent(tooltiphtml);
                }
                if (!this.disableHighlight) {
                    this.canvas.render();
                }
            }
            if (result === null) {
                this.mouseleave();
            }
        }
    });


    Tooltip = createClass({
        sizeStyle: 'position: static !important;' +
            'display: block !important;' +
            'visibility: hidden !important;' +
            'float: left !important;',

        init: function (options) {
            var tooltipClassname = options.get('tooltipClassname', 'jqstooltip'),
                sizetipStyle = this.sizeStyle,
                offset;
            this.container = options.get('tooltipContainer') || document.body;
            this.tooltipOffsetX = options.get('tooltipOffsetX', 10);
            this.tooltipOffsetY = options.get('tooltipOffsetY', 12);
            // remove any previous lingering tooltip
            $('#jqssizetip').remove();
            $('#jqstooltip').remove();
            this.sizetip = $('<div/>', {
                id: 'jqssizetip',
                style: sizetipStyle,
                'class': tooltipClassname
            });
            this.tooltip = $('<div/>', {
                id: 'jqstooltip',
                'class': tooltipClassname
            }).appendTo(this.container);
            // account for the container's location
            offset = this.tooltip.offset();
            this.offsetLeft = offset.left;
            this.offsetTop = offset.top;
            this.hidden = true;
            $(window).unbind('resize.jqs scroll.jqs');
            $(window).bind('resize.jqs scroll.jqs', $.proxy(this.updateWindowDims, this));
            this.updateWindowDims();
        },

        updateWindowDims: function () {
            this.scrollTop = $(window).scrollTop();
            this.scrollLeft = $(window).scrollLeft();
            this.scrollRight = this.scrollLeft + $(window).width();
            this.updatePosition();
        },

        getSize: function (content) {
            this.sizetip.html(content).appendTo(this.container);
            this.width = this.sizetip.width() + 1;
            this.height = this.sizetip.height();
            this.sizetip.remove();
        },

        setContent: function (content) {
            if (!content) {
                this.tooltip.css('visibility', 'hidden');
                this.hidden = true;
                return;
            }
            this.getSize(content);
            this.tooltip.html(content)
                .css({
                    'width': this.width,
                    'height': this.height,
                    'visibility': 'visible'
                });
            if (this.hidden) {
                this.hidden = false;
                this.updatePosition();
            }
        },

        updatePosition: function (x, y) {
            if (x === undefined) {
                if (this.mousex === undefined) {
                    return;
                }
                x = this.mousex - this.offsetLeft;
                y = this.mousey - this.offsetTop;

            } else {
                this.mousex = x = x - this.offsetLeft;
                this.mousey = y = y - this.offsetTop;
            }
            if (!this.height || !this.width || this.hidden) {
                return;
            }

            y -= this.height + this.tooltipOffsetY;
            x += this.tooltipOffsetX;

            if (y < this.scrollTop) {
                y = this.scrollTop;
            }
            if (x < this.scrollLeft) {
                x = this.scrollLeft;
            } else if (x + this.width > this.scrollRight) {
                x = this.scrollRight - this.width;
            }

            this.tooltip.css({
                'left': x,
                'top': y
            });
        },

        remove: function () {
            this.tooltip.remove();
            this.sizetip.remove();
            this.sizetip = this.tooltip = undefined;
            $(window).unbind('resize.jqs scroll.jqs');
        }
    });

    initStyles = function() {
        addCSS(defaultStyles);
    };

    $(initStyles);

    pending = [];
    $.fn.sparkline = function (userValues, userOptions) {
        return this.each(function () {
            var options = new $.fn.sparkline.options(this, userOptions),
                 $this = $(this),
                 render, i;
            render = function () {
                var values, width, height, tmp, mhandler, sp, vals;
                if (userValues === 'html' || userValues === undefined) {
                    vals = this.getAttribute(options.get('tagValuesAttribute'));
                    if (vals === undefined || vals === null) {
                        vals = $this.html();
                    }
                    values = vals.replace(/(^\s*<!--)|(-->\s*$)|\s+/g, '').split(',');
                } else {
                    values = userValues;
                }

                width = options.get('width') === 'auto' ? values.length * options.get('defaultPixelsPerValue') : options.get('width');
                if (options.get('height') === 'auto') {
                    if (!options.get('composite') || !$.data(this, '_jqs_vcanvas')) {
                        // must be a better way to get the line height
                        tmp = document.createElement('span');
                        tmp.innerHTML = 'a';
                        $this.html(tmp);
                        height = $(tmp).innerHeight() || $(tmp).height();
                        $(tmp).remove();
                        tmp = null;
                    }
                } else {
                    height = options.get('height');
                }

                if (!options.get('disableInteraction')) {
                    mhandler = $.data(this, '_jqs_mhandler');
                    if (!mhandler) {
                        mhandler = new MouseHandler(this, options);
                        $.data(this, '_jqs_mhandler', mhandler);
                    } else if (!options.get('composite')) {
                        mhandler.reset();
                    }
                } else {
                    mhandler = false;
                }

                if (options.get('composite') && !$.data(this, '_jqs_vcanvas')) {
                    if (!$.data(this, '_jqs_errnotify')) {
                        alert('Attempted to attach a composite sparkline to an element with no existing sparkline');
                        $.data(this, '_jqs_errnotify', true);
                    }
                    return;
                }

                sp = new $.fn.sparkline[options.get('type')](this, values, options, width, height);

                sp.render();

                if (mhandler) {
                    mhandler.registerSparkline(sp);
                }
            };
            // jQuery 1.3.0 completely changed the meaning of :hidden :-/
            if (($(this).html() && !options.get('disableHiddenCheck') && $(this).is(':hidden')) || ($.fn.jquery < '1.3.0' && $(this).parents().is(':hidden')) || !$(this).parents('body').length) {
                if (!options.get('composite') && $.data(this, '_jqs_pending')) {
                    // remove any existing references to the element
                    for (i = pending.length; i; i--) {
                        if (pending[i - 1][0] == this) {
                            pending.splice(i - 1, 1);
                        }
                    }
                }
                pending.push([this, render]);
                $.data(this, '_jqs_pending', true);
            } else {
                render.call(this);
            }
        });
    };

    $.fn.sparkline.defaults = getDefaults();


    $.sparkline_display_visible = function () {
        var el, i, pl;
        var done = [];
        for (i = 0, pl = pending.length; i < pl; i++) {
            el = pending[i][0];
            if ($(el).is(':visible') && !$(el).parents().is(':hidden')) {
                pending[i][1].call(el);
                $.data(pending[i][0], '_jqs_pending', false);
                done.push(i);
            } else if (!$(el).closest('html').length && !$.data(el, '_jqs_pending')) {
                // element has been inserted and removed from the DOM
                // If it was not yet inserted into the dom then the .data request
                // will return true.
                // removing from the dom causes the data to be removed.
                $.data(pending[i][0], '_jqs_pending', false);
                done.push(i);
            }
        }
        for (i = done.length; i; i--) {
            pending.splice(done[i - 1], 1);
        }
    };


    /**
     * User option handler
     */
    $.fn.sparkline.options = createClass({
        init: function (tag, userOptions) {
            var extendedOptions, defaults, base, tagOptionType;
            this.userOptions = userOptions = userOptions || {};
            this.tag = tag;
            this.tagValCache = {};
            defaults = $.fn.sparkline.defaults;
            base = defaults.common;
            this.tagOptionsPrefix = userOptions.enableTagOptions && (userOptions.tagOptionsPrefix || base.tagOptionsPrefix);

            tagOptionType = this.getTagSetting('type');
            if (tagOptionType === UNSET_OPTION) {
                extendedOptions = defaults[userOptions.type || base.type];
            } else {
                extendedOptions = defaults[tagOptionType];
            }
            this.mergedOptions = $.extend({}, base, extendedOptions, userOptions);
        },


        getTagSetting: function (key) {
            var prefix = this.tagOptionsPrefix,
                val, i, pairs, keyval;
            if (prefix === false || prefix === undefined) {
                return UNSET_OPTION;
            }
            if (this.tagValCache.hasOwnProperty(key)) {
                val = this.tagValCache.key;
            } else {
                val = this.tag.getAttribute(prefix + key);
                if (val === undefined || val === null) {
                    val = UNSET_OPTION;
                } else if (val.substr(0, 1) === '[') {
                    val = val.substr(1, val.length - 2).split(',');
                    for (i = val.length; i--;) {
                        val[i] = normalizeValue(val[i].replace(/(^\s*)|(\s*$)/g, ''));
                    }
                } else if (val.substr(0, 1) === '{') {
                    pairs = val.substr(1, val.length - 2).split(',');
                    val = {};
                    for (i = pairs.length; i--;) {
                        keyval = pairs[i].split(':', 2);
                        val[keyval[0].replace(/(^\s*)|(\s*$)/g, '')] = normalizeValue(keyval[1].replace(/(^\s*)|(\s*$)/g, ''));
                    }
                } else {
                    val = normalizeValue(val);
                }
                this.tagValCache.key = val;
            }
            return val;
        },

        get: function (key, defaultval) {
            var tagOption = this.getTagSetting(key),
                result;
            if (tagOption !== UNSET_OPTION) {
                return tagOption;
            }
            return (result = this.mergedOptions[key]) === undefined ? defaultval : result;
        }
    });


    $.fn.sparkline._base = createClass({
        disabled: false,

        init: function (el, values, options, width, height) {
            this.el = el;
            this.$el = $(el);
            this.values = values;
            this.options = options;
            this.width = width;
            this.height = height;
            this.currentRegion = undefined;
        },

        /**
         * Setup the canvas
         */
        initTarget: function () {
            var interactive = !this.options.get('disableInteraction');
            if (!(this.target = this.$el.simpledraw(this.width, this.height, this.options.get('composite'), interactive))) {
                this.disabled = true;
            } else {
                this.canvasWidth = this.target.pixelWidth;
                this.canvasHeight = this.target.pixelHeight;
            }
        },

        /**
         * Actually render the chart to the canvas
         */
        render: function () {
            if (this.disabled) {
                this.el.innerHTML = '';
                return false;
            }
            return true;
        },

        /**
         * Return a region id for a given x/y co-ordinate
         */
        getRegion: function (x, y) {
        },

        /**
         * Highlight an item based on the moused-over x,y co-ordinate
         */
        setRegionHighlight: function (el, x, y) {
            var currentRegion = this.currentRegion,
                highlightEnabled = !this.options.get('disableHighlight'),
                newRegion;
            if (x > this.canvasWidth || y > this.canvasHeight || x < 0 || y < 0) {
                return null;
            }
            newRegion = this.getRegion(el, x, y);
            if (currentRegion !== newRegion) {
                if (currentRegion !== undefined && highlightEnabled) {
                    this.removeHighlight();
                }
                this.currentRegion = newRegion;
                if (newRegion !== undefined && highlightEnabled) {
                    this.renderHighlight();
                }
                return true;
            }
            return false;
        },

        /**
         * Reset any currently highlighted item
         */
        clearRegionHighlight: function () {
            if (this.currentRegion !== undefined) {
                this.removeHighlight();
                this.currentRegion = undefined;
                return true;
            }
            return false;
        },

        renderHighlight: function () {
            this.changeHighlight(true);
        },

        removeHighlight: function () {
            this.changeHighlight(false);
        },

        changeHighlight: function (highlight)  {},

        /**
         * Fetch the HTML to display as a tooltip
         */
        getCurrentRegionTooltip: function () {
            var options = this.options,
                header = '',
                entries = [],
                fields, formats, formatlen, fclass, text, i,
                showFields, showFieldsKey, newFields, fv,
                formatter, format, fieldlen, j;
            if (this.currentRegion === undefined) {
                return '';
            }
            fields = this.getCurrentRegionFields();
            formatter = options.get('tooltipFormatter');
            if (formatter) {
                return formatter(this, options, fields);
            }
            if (options.get('tooltipChartTitle')) {
                header += '<div class="jqs jqstitle">' + options.get('tooltipChartTitle') + '</div>\n';
            }
            formats = this.options.get('tooltipFormat');
            if (!formats) {
                return '';
            }
            if (!$.isArray(formats)) {
                formats = [formats];
            }
            if (!$.isArray(fields)) {
                fields = [fields];
            }
            showFields = this.options.get('tooltipFormatFieldlist');
            showFieldsKey = this.options.get('tooltipFormatFieldlistKey');
            if (showFields && showFieldsKey) {
                // user-selected ordering of fields
                newFields = [];
                for (i = fields.length; i--;) {
                    fv = fields[i][showFieldsKey];
                    if ((j = $.inArray(fv, showFields)) != -1) {
                        newFields[j] = fields[i];
                    }
                }
                fields = newFields;
            }
            formatlen = formats.length;
            fieldlen = fields.length;
            for (i = 0; i < formatlen; i++) {
                format = formats[i];
                if (typeof format === 'string') {
                    format = new SPFormat(format);
                }
                fclass = format.fclass || 'jqsfield';
                for (j = 0; j < fieldlen; j++) {
                    if (!fields[j].isNull || !options.get('tooltipSkipNull')) {
                        $.extend(fields[j], {
                            prefix: options.get('tooltipPrefix'),
                            suffix: options.get('tooltipSuffix')
                        });
                        text = format.render(fields[j], options.get('tooltipValueLookups'), options);
                        entries.push('<div class="' + fclass + '">' + text + '</div>');
                    }
                }
            }
            if (entries.length) {
                return header + entries.join('\n');
            }
            return '';
        },

        getCurrentRegionFields: function () {},

        calcHighlightColor: function (color, options) {
            var highlightColor = options.get('highlightColor'),
                lighten = options.get('highlightLighten'),
                parse, mult, rgbnew, i;
            if (highlightColor) {
                return highlightColor;
            }
            if (lighten) {
                // extract RGB values
                parse = /^#([0-9a-f])([0-9a-f])([0-9a-f])$/i.exec(color) || /^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i.exec(color);
                if (parse) {
                    rgbnew = [];
                    mult = color.length === 4 ? 16 : 1;
                    for (i = 0; i < 3; i++) {
                        rgbnew[i] = clipval(Math.round(parseInt(parse[i + 1], 16) * mult * lighten), 0, 255);
                    }
                    return 'rgb(' + rgbnew.join(',') + ')';
                }

            }
            return color;
        }

    });

    barHighlightMixin = {
        changeHighlight: function (highlight) {
            var currentRegion = this.currentRegion,
                target = this.target,
                shapeids = this.regionShapes[currentRegion],
                newShapes;
            // will be null if the region value was null
            if (shapeids) {
                newShapes = this.renderRegion(currentRegion, highlight);
                if ($.isArray(newShapes) || $.isArray(shapeids)) {
                    target.replaceWithShapes(shapeids, newShapes);
                    this.regionShapes[currentRegion] = $.map(newShapes, function (newShape) {
                        return newShape.id;
                    });
                } else {
                    target.replaceWithShape(shapeids, newShapes);
                    this.regionShapes[currentRegion] = newShapes.id;
                }
            }
        },

        render: function () {
            var values = this.values,
                target = this.target,
                regionShapes = this.regionShapes,
                shapes, ids, i, j;

            if (!this.cls._super.render.call(this)) {
                return;
            }
            for (i = values.length; i--;) {
                shapes = this.renderRegion(i);
                if (shapes) {
                    if ($.isArray(shapes)) {
                        ids = [];
                        for (j = shapes.length; j--;) {
                            shapes[j].append();
                            ids.push(shapes[j].id);
                        }
                        regionShapes[i] = ids;
                    } else {
                        shapes.append();
                        regionShapes[i] = shapes.id; // store just the shapeid
                    }
                } else {
                    // null value
                    regionShapes[i] = null;
                }
            }
            target.render();
        }
    };

    /**
     * Line charts
     */
    $.fn.sparkline.line = line = createClass($.fn.sparkline._base, {
        type: 'line',

        init: function (el, values, options, width, height) {
            line._super.init.call(this, el, values, options, width, height);
            this.vertices = [];
            this.regionMap = [];
            this.xvalues = [];
            this.yvalues = [];
            this.yminmax = [];
            this.hightlightSpotId = null;
            this.lastShapeId = null;
            this.initTarget();
        },

        getRegion: function (el, x, y) {
            var i,
                regionMap = this.regionMap; // maps regions to value positions
            for (i = regionMap.length; i--;) {
                if (regionMap[i] !== null && x >= regionMap[i][0] && x <= regionMap[i][1]) {
                    return regionMap[i][2];
                }
            }
            return undefined;
        },

        getCurrentRegionFields: function () {
            var currentRegion = this.currentRegion;
            return {
                isNull: this.yvalues[currentRegion] === null,
                x: this.xvalues[currentRegion],
                y: this.yvalues[currentRegion],
                color: this.options.get('lineColor'),
                fillColor: this.options.get('fillColor'),
                offset: currentRegion
            };
        },

        renderHighlight: function () {
            var currentRegion = this.currentRegion,
                target = this.target,
                vertex = this.vertices[currentRegion],
                options = this.options,
                spotRadius = options.get('spotRadius'),
                highlightSpotColor = options.get('highlightSpotColor'),
                highlightLineColor = options.get('highlightLineColor'),
                highlightSpot, highlightLine;

            if (!vertex) {
                return;
            }
            if (spotRadius && highlightSpotColor) {
                highlightSpot = target.drawCircle(vertex[0], vertex[1],
                    spotRadius, undefined, highlightSpotColor);
                this.highlightSpotId = highlightSpot.id;
                target.insertAfterShape(this.lastShapeId, highlightSpot);
            }
            if (highlightLineColor) {
                highlightLine = target.drawLine(vertex[0], this.canvasTop, vertex[0],
                    this.canvasTop + this.canvasHeight, highlightLineColor);
                this.highlightLineId = highlightLine.id;
                target.insertAfterShape(this.lastShapeId, highlightLine);
            }
        },

        removeHighlight: function () {
            var target = this.target;
            if (this.highlightSpotId) {
                target.removeShapeId(this.highlightSpotId);
                this.highlightSpotId = null;
            }
            if (this.highlightLineId) {
                target.removeShapeId(this.highlightLineId);
                this.highlightLineId = null;
            }
        },

        scanValues: function () {
            var values = this.values,
                valcount = values.length,
                xvalues = this.xvalues,
                yvalues = this.yvalues,
                yminmax = this.yminmax,
                i, val, isStr, isArray, sp;
            for (i = 0; i < valcount; i++) {
                val = values[i];
                isStr = typeof(values[i]) === 'string';
                isArray = typeof(values[i]) === 'object' && values[i] instanceof Array;
                sp = isStr && values[i].split(':');
                if (isStr && sp.length === 2) { // x:y
                    xvalues.push(Number(sp[0]));
                    yvalues.push(Number(sp[1]));
                    yminmax.push(Number(sp[1]));
                } else if (isArray) {
                    xvalues.push(val[0]);
                    yvalues.push(val[1]);
                    yminmax.push(val[1]);
                } else {
                    xvalues.push(i);
                    if (values[i] === null || values[i] === 'null') {
                        yvalues.push(null);
                    } else {
                        yvalues.push(Number(val));
                        yminmax.push(Number(val));
                    }
                }
            }
            if (this.options.get('xvalues')) {
                xvalues = this.options.get('xvalues');
            }

            this.maxy = this.maxyorg = Math.max.apply(Math, yminmax);
            this.miny = this.minyorg = Math.min.apply(Math, yminmax);

            this.maxx = Math.max.apply(Math, xvalues);
            this.minx = Math.min.apply(Math, xvalues);

            this.xvalues = xvalues;
            this.yvalues = yvalues;
            this.yminmax = yminmax;

        },

        processRangeOptions: function () {
            var options = this.options,
                normalRangeMin = options.get('normalRangeMin'),
                normalRangeMax = options.get('normalRangeMax');

            if (normalRangeMin !== undefined) {
                if (normalRangeMin < this.miny) {
                    this.miny = normalRangeMin;
                }
                if (normalRangeMax > this.maxy) {
                    this.maxy = normalRangeMax;
                }
            }
            if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.miny)) {
                this.miny = options.get('chartRangeMin');
            }
            if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.maxy)) {
                this.maxy = options.get('chartRangeMax');
            }
            if (options.get('chartRangeMinX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMinX') < this.minx)) {
                this.minx = options.get('chartRangeMinX');
            }
            if (options.get('chartRangeMaxX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMaxX') > this.maxx)) {
                this.maxx = options.get('chartRangeMaxX');
            }

        },

        drawNormalRange: function (canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey) {
            var normalRangeMin = this.options.get('normalRangeMin'),
                normalRangeMax = this.options.get('normalRangeMax'),
                ytop = canvasTop + Math.round(canvasHeight - (canvasHeight * ((normalRangeMax - this.miny) / rangey))),
                height = Math.round((canvasHeight * (normalRangeMax - normalRangeMin)) / rangey);
            this.target.drawRect(canvasLeft, ytop, canvasWidth, height, undefined, this.options.get('normalRangeColor')).append();
        },

        render: function () {
            var options = this.options,
                target = this.target,
                canvasWidth = this.canvasWidth,
                canvasHeight = this.canvasHeight,
                vertices = this.vertices,
                spotRadius = options.get('spotRadius'),
                regionMap = this.regionMap,
                rangex, rangey, yvallast,
                canvasTop, canvasLeft,
                vertex, path, paths, x, y, xnext, xpos, xposnext,
                last, next, yvalcount, lineShapes, fillShapes, plen,
                valueSpots, hlSpotsEnabled, color, xvalues, yvalues, i;

            if (!line._super.render.call(this)) {
                return;
            }

            this.scanValues();
            this.processRangeOptions();

            xvalues = this.xvalues;
            yvalues = this.yvalues;

            if (!this.yminmax.length || this.yvalues.length < 2) {
                // empty or all null valuess
                return;
            }

            canvasTop = canvasLeft = 0;

            rangex = this.maxx - this.minx === 0 ? 1 : this.maxx - this.minx;
            rangey = this.maxy - this.miny === 0 ? 1 : this.maxy - this.miny;
            yvallast = this.yvalues.length - 1;

            if (spotRadius && (canvasWidth < (spotRadius * 4) || canvasHeight < (spotRadius * 4))) {
                spotRadius = 0;
            }
            if (spotRadius) {
                // adjust the canvas size as required so that spots will fit
                hlSpotsEnabled = options.get('highlightSpotColor') &&  !options.get('disableInteraction');
                if (hlSpotsEnabled || options.get('minSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.miny)) {
                    canvasHeight -= Math.ceil(spotRadius);
                }
                if (hlSpotsEnabled || options.get('maxSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.maxy)) {
                    canvasHeight -= Math.ceil(spotRadius);
                    canvasTop += Math.ceil(spotRadius);
                }
                if (hlSpotsEnabled ||
                     ((options.get('minSpotColor') || options.get('maxSpotColor')) && (yvalues[0] === this.miny || yvalues[0] === this.maxy))) {
                    canvasLeft += Math.ceil(spotRadius);
                    canvasWidth -= Math.ceil(spotRadius);
                }
                if (hlSpotsEnabled || options.get('spotColor') ||
                    (options.get('minSpotColor') || options.get('maxSpotColor') &&
                        (yvalues[yvallast] === this.miny || yvalues[yvallast] === this.maxy))) {
                    canvasWidth -= Math.ceil(spotRadius);
                }
            }


            canvasHeight--;

            if (options.get('normalRangeMin') !== undefined && !options.get('drawNormalOnTop')) {
                this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
            }

            path = [];
            paths = [path];
            last = next = null;
            yvalcount = yvalues.length;
            for (i = 0; i < yvalcount; i++) {
                x = xvalues[i];
                xnext = xvalues[i + 1];
                y = yvalues[i];
                xpos = canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex));
                xposnext = i < yvalcount - 1 ? canvasLeft + Math.round((xnext - this.minx) * (canvasWidth / rangex)) : canvasWidth;
                next = xpos + ((xposnext - xpos) / 2);
                regionMap[i] = [last || 0, next, i];
                last = next;
                if (y === null) {
                    if (i) {
                        if (yvalues[i - 1] !== null) {
                            path = [];
                            paths.push(path);
                        }
                        vertices.push(null);
                    }
                } else {
                    if (y < this.miny) {
                        y = this.miny;
                    }
                    if (y > this.maxy) {
                        y = this.maxy;
                    }
                    if (!path.length) {
                        // previous value was null
                        path.push([xpos, canvasTop + canvasHeight]);
                    }
                    vertex = [xpos, canvasTop + Math.round(canvasHeight - (canvasHeight * ((y - this.miny) / rangey)))];
                    path.push(vertex);
                    vertices.push(vertex);
                }
            }

            lineShapes = [];
            fillShapes = [];
            plen = paths.length;
            for (i = 0; i < plen; i++) {
                path = paths[i];
                if (path.length) {
                    if (options.get('fillColor')) {
                        path.push([path[path.length - 1][0], (canvasTop + canvasHeight)]);
                        fillShapes.push(path.slice(0));
                        path.pop();
                    }
                    // if there's only a single point in this path, then we want to display it
                    // as a vertical line which means we keep path[0]  as is
                    if (path.length > 2) {
                        // else we want the first value
                        path[0] = [path[0][0], path[1][1]];
                    }
                    lineShapes.push(path);
                }
            }

            // draw the fill first, then optionally the normal range, then the line on top of that
            plen = fillShapes.length;
            for (i = 0; i < plen; i++) {
                target.drawShape(fillShapes[i],
                    options.get('fillColor'), options.get('fillColor')).append();
            }

            if (options.get('normalRangeMin') !== undefined && options.get('drawNormalOnTop')) {
                this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
            }

            plen = lineShapes.length;
            for (i = 0; i < plen; i++) {
                target.drawShape(lineShapes[i], options.get('lineColor'), undefined,
                    options.get('lineWidth')).append();
            }

            if (spotRadius && options.get('valueSpots')) {
                valueSpots = options.get('valueSpots');
                if (valueSpots.get === undefined) {
                    valueSpots = new RangeMap(valueSpots);
                }
                for (i = 0; i < yvalcount; i++) {
                    color = valueSpots.get(yvalues[i]);
                    if (color) {
                        target.drawCircle(canvasLeft + Math.round((xvalues[i] - this.minx) * (canvasWidth / rangex)),
                            canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[i] - this.miny) / rangey))),
                            spotRadius, undefined,
                            color).append();
                    }
                }

            }
            if (spotRadius && options.get('spotColor') && yvalues[yvallast] !== null) {
                target.drawCircle(canvasLeft + Math.round((xvalues[xvalues.length - 1] - this.minx) * (canvasWidth / rangex)),
                    canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[yvallast] - this.miny) / rangey))),
                    spotRadius, undefined,
                    options.get('spotColor')).append();
            }
            if (this.maxy !== this.minyorg) {
                if (spotRadius && options.get('minSpotColor')) {
                    x = xvalues[$.inArray(this.minyorg, yvalues)];
                    target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
                        canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.minyorg - this.miny) / rangey))),
                        spotRadius, undefined,
                        options.get('minSpotColor')).append();
                }
                if (spotRadius && options.get('maxSpotColor')) {
                    x = xvalues[$.inArray(this.maxyorg, yvalues)];
                    target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
                        canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.maxyorg - this.miny) / rangey))),
                        spotRadius, undefined,
                        options.get('maxSpotColor')).append();
                }
            }

            this.lastShapeId = target.getLastShapeId();
            this.canvasTop = canvasTop;
            target.render();
        }
    });

    /**
     * Bar charts
     */
    $.fn.sparkline.bar = bar = createClass($.fn.sparkline._base, barHighlightMixin, {
        type: 'bar',

        init: function (el, values, options, width, height) {
            var barWidth = parseInt(options.get('barWidth'), 10),
                barSpacing = parseInt(options.get('barSpacing'), 10),
                chartRangeMin = options.get('chartRangeMin'),
                chartRangeMax = options.get('chartRangeMax'),
                chartRangeClip = options.get('chartRangeClip'),
                stackMin = Infinity,
                stackMax = -Infinity,
                isStackString, groupMin, groupMax, stackRanges,
                numValues, i, vlen, range, zeroAxis, xaxisOffset, min, max, clipMin, clipMax,
                stacked, vlist, j, slen, svals, val, yoffset, yMaxCalc, canvasHeightEf;
            bar._super.init.call(this, el, values, options, width, height);

            // scan values to determine whether to stack bars
            for (i = 0, vlen = values.length; i < vlen; i++) {
                val = values[i];
                isStackString = typeof(val) === 'string' && val.indexOf(':') > -1;
                if (isStackString || $.isArray(val)) {
                    stacked = true;
                    if (isStackString) {
                        val = values[i] = normalizeValues(val.split(':'));
                    }
                    val = remove(val, null); // min/max will treat null as zero
                    groupMin = Math.min.apply(Math, val);
                    groupMax = Math.max.apply(Math, val);
                    if (groupMin < stackMin) {
                        stackMin = groupMin;
                    }
                    if (groupMax > stackMax) {
                        stackMax = groupMax;
                    }
                }
            }

            this.stacked = stacked;
            this.regionShapes = {};
            this.barWidth = barWidth;
            this.barSpacing = barSpacing;
            this.totalBarWidth = barWidth + barSpacing;
            this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

            this.initTarget();

            if (chartRangeClip) {
                clipMin = chartRangeMin === undefined ? -Infinity : chartRangeMin;
                clipMax = chartRangeMax === undefined ? Infinity : chartRangeMax;
            }

            numValues = [];
            stackRanges = stacked ? [] : numValues;
            var stackTotals = [];
            var stackRangesNeg = [];
            for (i = 0, vlen = values.length; i < vlen; i++) {
                if (stacked) {
                    vlist = values[i];
                    values[i] = svals = [];
                    stackTotals[i] = 0;
                    stackRanges[i] = stackRangesNeg[i] = 0;
                    for (j = 0, slen = vlist.length; j < slen; j++) {
                        val = svals[j] = chartRangeClip ? clipval(vlist[j], clipMin, clipMax) : vlist[j];
                        if (val !== null) {
                            if (val > 0) {
                                stackTotals[i] += val;
                            }
                            if (stackMin < 0 && stackMax > 0) {
                                if (val < 0) {
                                    stackRangesNeg[i] += Math.abs(val);
                                } else {
                                    stackRanges[i] += val;
                                }
                            } else {
                                stackRanges[i] += Math.abs(val - (val < 0 ? stackMax : stackMin));
                            }
                            numValues.push(val);
                        }
                    }
                } else {
                    val = chartRangeClip ? clipval(values[i], clipMin, clipMax) : values[i];
                    val = values[i] = normalizeValue(val);
                    if (val !== null) {
                        numValues.push(val);
                    }
                }
            }
            this.max = max = Math.max.apply(Math, numValues);
            this.min = min = Math.min.apply(Math, numValues);
            this.stackMax = stackMax = stacked ? Math.max.apply(Math, stackTotals) : max;
            this.stackMin = stackMin = stacked ? Math.min.apply(Math, numValues) : min;

            if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < min)) {
                min = options.get('chartRangeMin');
            }
            if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > max)) {
                max = options.get('chartRangeMax');
            }

            this.zeroAxis = zeroAxis = options.get('zeroAxis', true);
            if (min <= 0 && max >= 0 && zeroAxis) {
                xaxisOffset = 0;
            } else if (zeroAxis == false) {
                xaxisOffset = min;
            } else if (min > 0) {
                xaxisOffset = min;
            } else {
                xaxisOffset = max;
            }
            this.xaxisOffset = xaxisOffset;

            range = stacked ? (Math.max.apply(Math, stackRanges) + Math.max.apply(Math, stackRangesNeg)) : max - min;

            // as we plot zero/min values a single pixel line, we add a pixel to all other
            // values - Reduce the effective canvas size to suit
            this.canvasHeightEf = (zeroAxis && min < 0) ? this.canvasHeight - 2 : this.canvasHeight - 1;

            if (min < xaxisOffset) {
                yMaxCalc = (stacked && max >= 0) ? stackMax : max;
                yoffset = (yMaxCalc - xaxisOffset) / range * this.canvasHeight;
                if (yoffset !== Math.ceil(yoffset)) {
                    this.canvasHeightEf -= 2;
                    yoffset = Math.ceil(yoffset);
                }
            } else {
                yoffset = this.canvasHeight;
            }
            this.yoffset = yoffset;

            if ($.isArray(options.get('colorMap'))) {
                this.colorMapByIndex = options.get('colorMap');
                this.colorMapByValue = null;
            } else {
                this.colorMapByIndex = null;
                this.colorMapByValue = options.get('colorMap');
                if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
                    this.colorMapByValue = new RangeMap(this.colorMapByValue);
                }
            }

            this.range = range;
        },

        getRegion: function (el, x, y) {
            var result = Math.floor(x / this.totalBarWidth);
            return (result < 0 || result >= this.values.length) ? undefined : result;
        },

        getCurrentRegionFields: function () {
            var currentRegion = this.currentRegion,
                values = ensureArray(this.values[currentRegion]),
                result = [],
                value, i;
            for (i = values.length; i--;) {
                value = values[i];
                result.push({
                    isNull: value === null,
                    value: value,
                    color: this.calcColor(i, value, currentRegion),
                    offset: currentRegion
                });
            }
            return result;
        },

        calcColor: function (stacknum, value, valuenum) {
            var colorMapByIndex = this.colorMapByIndex,
                colorMapByValue = this.colorMapByValue,
                options = this.options,
                color, newColor;
            if (this.stacked) {
                color = options.get('stackedBarColor');
            } else {
                color = (value < 0) ? options.get('negBarColor') : options.get('barColor');
            }
            if (value === 0 && options.get('zeroColor') !== undefined) {
                color = options.get('zeroColor');
            }
            if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
                color = newColor;
            } else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
                color = colorMapByIndex[valuenum];
            }
            return $.isArray(color) ? color[stacknum % color.length] : color;
        },

        /**
         * Render bar(s) for a region
         */
        renderRegion: function (valuenum, highlight) {
            var vals = this.values[valuenum],
                options = this.options,
                xaxisOffset = this.xaxisOffset,
                result = [],
                range = this.range,
                stacked = this.stacked,
                target = this.target,
                x = valuenum * this.totalBarWidth,
                canvasHeightEf = this.canvasHeightEf,
                yoffset = this.yoffset,
                y, height, color, isNull, yoffsetNeg, i, valcount, val, minPlotted, allMin;

            vals = $.isArray(vals) ? vals : [vals];
            valcount = vals.length;
            val = vals[0];
            isNull = all(null, vals);
            allMin = all(xaxisOffset, vals, true);

            if (isNull) {
                if (options.get('nullColor')) {
                    color = highlight ? options.get('nullColor') : this.calcHighlightColor(options.get('nullColor'), options);
                    y = (yoffset > 0) ? yoffset - 1 : yoffset;
                    return target.drawRect(x, y, this.barWidth - 1, 0, color, color);
                } else {
                    return undefined;
                }
            }
            yoffsetNeg = yoffset;
            for (i = 0; i < valcount; i++) {
                val = vals[i];

                if (stacked && val === xaxisOffset) {
                    if (!allMin || minPlotted) {
                        continue;
                    }
                    minPlotted = true;
                }

                if (range > 0) {
                    height = Math.floor(canvasHeightEf * ((Math.abs(val - xaxisOffset) / range))) + 1;
                } else {
                    height = 1;
                }
                if (val < xaxisOffset || (val === xaxisOffset && yoffset === 0)) {
                    y = yoffsetNeg;
                    yoffsetNeg += height;
                } else {
                    y = yoffset - height;
                    yoffset -= height;
                }
                color = this.calcColor(i, val, valuenum);
                if (highlight) {
                    color = this.calcHighlightColor(color, options);
                }
                result.push(target.drawRect(x, y, this.barWidth - 1, height - 1, color, color));
            }
            if (result.length === 1) {
                return result[0];
            }
            return result;
        }
    });

    /**
     * Tristate charts
     */
    $.fn.sparkline.tristate = tristate = createClass($.fn.sparkline._base, barHighlightMixin, {
        type: 'tristate',

        init: function (el, values, options, width, height) {
            var barWidth = parseInt(options.get('barWidth'), 10),
                barSpacing = parseInt(options.get('barSpacing'), 10);
            tristate._super.init.call(this, el, values, options, width, height);

            this.regionShapes = {};
            this.barWidth = barWidth;
            this.barSpacing = barSpacing;
            this.totalBarWidth = barWidth + barSpacing;
            this.values = $.map(values, Number);
            this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

            if ($.isArray(options.get('colorMap'))) {
                this.colorMapByIndex = options.get('colorMap');
                this.colorMapByValue = null;
            } else {
                this.colorMapByIndex = null;
                this.colorMapByValue = options.get('colorMap');
                if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
                    this.colorMapByValue = new RangeMap(this.colorMapByValue);
                }
            }
            this.initTarget();
        },

        getRegion: function (el, x, y) {
            return Math.floor(x / this.totalBarWidth);
        },

        getCurrentRegionFields: function () {
            var currentRegion = this.currentRegion;
            return {
                isNull: this.values[currentRegion] === undefined,
                value: this.values[currentRegion],
                color: this.calcColor(this.values[currentRegion], currentRegion),
                offset: currentRegion
            };
        },

        calcColor: function (value, valuenum) {
            var values = this.values,
                options = this.options,
                colorMapByIndex = this.colorMapByIndex,
                colorMapByValue = this.colorMapByValue,
                color, newColor;

            if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
                color = newColor;
            } else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
                color = colorMapByIndex[valuenum];
            } else if (values[valuenum] < 0) {
                color = options.get('negBarColor');
            } else if (values[valuenum] > 0) {
                color = options.get('posBarColor');
            } else {
                color = options.get('zeroBarColor');
            }
            return color;
        },

        renderRegion: function (valuenum, highlight) {
            var values = this.values,
                options = this.options,
                target = this.target,
                canvasHeight, height, halfHeight,
                x, y, color;

            canvasHeight = target.pixelHeight;
            halfHeight = Math.round(canvasHeight / 2);

            x = valuenum * this.totalBarWidth;
            if (values[valuenum] < 0) {
                y = halfHeight;
                height = halfHeight - 1;
            } else if (values[valuenum] > 0) {
                y = 0;
                height = halfHeight - 1;
            } else {
                y = halfHeight - 1;
                height = 2;
            }
            color = this.calcColor(values[valuenum], valuenum);
            if (color === null) {
                return;
            }
            if (highlight) {
                color = this.calcHighlightColor(color, options);
            }
            return target.drawRect(x, y, this.barWidth - 1, height - 1, color, color);
        }
    });

    /**
     * Discrete charts
     */
    $.fn.sparkline.discrete = discrete = createClass($.fn.sparkline._base, barHighlightMixin, {
        type: 'discrete',

        init: function (el, values, options, width, height) {
            discrete._super.init.call(this, el, values, options, width, height);

            this.regionShapes = {};
            this.values = values = $.map(values, Number);
            this.min = Math.min.apply(Math, values);
            this.max = Math.max.apply(Math, values);
            this.range = this.max - this.min;
            this.width = width = options.get('width') === 'auto' ? values.length * 2 : this.width;
            this.interval = Math.floor(width / values.length);
            this.itemWidth = width / values.length;
            if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.min)) {
                this.min = options.get('chartRangeMin');
            }
            if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.max)) {
                this.max = options.get('chartRangeMax');
            }
            this.initTarget();
            if (this.target) {
                this.lineHeight = options.get('lineHeight') === 'auto' ? Math.round(this.canvasHeight * 0.3) : options.get('lineHeight');
            }
        },

        getRegion: function (el, x, y) {
            return Math.floor(x / this.itemWidth);
        },

        getCurrentRegionFields: function () {
            var currentRegion = this.currentRegion;
            return {
                isNull: this.values[currentRegion] === undefined,
                value: this.values[currentRegion],
                offset: currentRegion
            };
        },

        renderRegion: function (valuenum, highlight) {
            var values = this.values,
                options = this.options,
                min = this.min,
                max = this.max,
                range = this.range,
                interval = this.interval,
                target = this.target,
                canvasHeight = this.canvasHeight,
                lineHeight = this.lineHeight,
                pheight = canvasHeight - lineHeight,
                ytop, val, color, x;

            val = clipval(values[valuenum], min, max);
            x = valuenum * interval;
            ytop = Math.round(pheight - pheight * ((val - min) / range));
            color = (options.get('thresholdColor') && val < options.get('thresholdValue')) ? options.get('thresholdColor') : options.get('lineColor');
            if (highlight) {
                color = this.calcHighlightColor(color, options);
            }
            return target.drawLine(x, ytop, x, ytop + lineHeight, color);
        }
    });

    /**
     * Bullet charts
     */
    $.fn.sparkline.bullet = bullet = createClass($.fn.sparkline._base, {
        type: 'bullet',

        init: function (el, values, options, width, height) {
            var min, max, vals;
            bullet._super.init.call(this, el, values, options, width, height);

            // values: target, performance, range1, range2, range3
            this.values = values = normalizeValues(values);
            // target or performance could be null
            vals = values.slice();
            vals[0] = vals[0] === null ? vals[2] : vals[0];
            vals[1] = values[1] === null ? vals[2] : vals[1];
            min = Math.min.apply(Math, values);
            max = Math.max.apply(Math, values);
            if (options.get('base') === undefined) {
                min = min < 0 ? min : 0;
            } else {
                min = options.get('base');
            }
            this.min = min;
            this.max = max;
            this.range = max - min;
            this.shapes = {};
            this.valueShapes = {};
            this.regiondata = {};
            this.width = width = options.get('width') === 'auto' ? '4.0em' : width;
            this.target = this.$el.simpledraw(width, height, options.get('composite'));
            if (!values.length) {
                this.disabled = true;
            }
            this.initTarget();
        },

        getRegion: function (el, x, y) {
            var shapeid = this.target.getShapeAt(el, x, y);
            return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
        },

        getCurrentRegionFields: function () {
            var currentRegion = this.currentRegion;
            return {
                fieldkey: currentRegion.substr(0, 1),
                value: this.values[currentRegion.substr(1)],
                region: currentRegion
            };
        },

        changeHighlight: function (highlight) {
            var currentRegion = this.currentRegion,
                shapeid = this.valueShapes[currentRegion],
                shape;
            delete this.shapes[shapeid];
            switch (currentRegion.substr(0, 1)) {
                case 'r':
                    shape = this.renderRange(currentRegion.substr(1), highlight);
                    break;
                case 'p':
                    shape = this.renderPerformance(highlight);
                    break;
                case 't':
                    shape = this.renderTarget(highlight);
                    break;
            }
            this.valueShapes[currentRegion] = shape.id;
            this.shapes[shape.id] = currentRegion;
            this.target.replaceWithShape(shapeid, shape);
        },

        renderRange: function (rn, highlight) {
            var rangeval = this.values[rn],
                rangewidth = Math.round(this.canvasWidth * ((rangeval - this.min) / this.range)),
                color = this.options.get('rangeColors')[rn - 2];
            if (highlight) {
                color = this.calcHighlightColor(color, this.options);
            }
            return this.target.drawRect(0, 0, rangewidth - 1, this.canvasHeight - 1, color, color);
        },

        renderPerformance: function (highlight) {
            var perfval = this.values[1],
                perfwidth = Math.round(this.canvasWidth * ((perfval - this.min) / this.range)),
                color = this.options.get('performanceColor');
            if (highlight) {
                color = this.calcHighlightColor(color, this.options);
            }
            return this.target.drawRect(0, Math.round(this.canvasHeight * 0.3), perfwidth - 1,
                Math.round(this.canvasHeight * 0.4) - 1, color, color);
        },

        renderTarget: function (highlight) {
            var targetval = this.values[0],
                x = Math.round(this.canvasWidth * ((targetval - this.min) / this.range) - (this.options.get('targetWidth') / 2)),
                targettop = Math.round(this.canvasHeight * 0.10),
                targetheight = this.canvasHeight - (targettop * 2),
                color = this.options.get('targetColor');
            if (highlight) {
                color = this.calcHighlightColor(color, this.options);
            }
            return this.target.drawRect(x, targettop, this.options.get('targetWidth') - 1, targetheight - 1, color, color);
        },

        render: function () {
            var vlen = this.values.length,
                target = this.target,
                i, shape;
            if (!bullet._super.render.call(this)) {
                return;
            }
            for (i = 2; i < vlen; i++) {
                shape = this.renderRange(i).append();
                this.shapes[shape.id] = 'r' + i;
                this.valueShapes['r' + i] = shape.id;
            }
            if (this.values[1] !== null) {
                shape = this.renderPerformance().append();
                this.shapes[shape.id] = 'p1';
                this.valueShapes.p1 = shape.id;
            }
            if (this.values[0] !== null) {
                shape = this.renderTarget().append();
                this.shapes[shape.id] = 't0';
                this.valueShapes.t0 = shape.id;
            }
            target.render();
        }
    });

    /**
     * Pie charts
     */
    $.fn.sparkline.pie = pie = createClass($.fn.sparkline._base, {
        type: 'pie',

        init: function (el, values, options, width, height) {
            var total = 0, i;

            pie._super.init.call(this, el, values, options, width, height);

            this.shapes = {}; // map shape ids to value offsets
            this.valueShapes = {}; // maps value offsets to shape ids
            this.values = values = $.map(values, Number);

            if (options.get('width') === 'auto') {
                this.width = this.height;
            }

            if (values.length > 0) {
                for (i = values.length; i--;) {
                    total += values[i];
                }
            }
            this.total = total;
            this.initTarget();
            this.radius = Math.floor(Math.min(this.canvasWidth, this.canvasHeight) / 2);
        },

        getRegion: function (el, x, y) {
            var shapeid = this.target.getShapeAt(el, x, y);
            return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
        },

        getCurrentRegionFields: function () {
            var currentRegion = this.currentRegion;
            return {
                isNull: this.values[currentRegion] === undefined,
                value: this.values[currentRegion],
                percent: this.values[currentRegion] / this.total * 100,
                color: this.options.get('sliceColors')[currentRegion % this.options.get('sliceColors').length],
                offset: currentRegion
            };
        },

        changeHighlight: function (highlight) {
            var currentRegion = this.currentRegion,
                 newslice = this.renderSlice(currentRegion, highlight),
                 shapeid = this.valueShapes[currentRegion];
            delete this.shapes[shapeid];
            this.target.replaceWithShape(shapeid, newslice);
            this.valueShapes[currentRegion] = newslice.id;
            this.shapes[newslice.id] = currentRegion;
        },

        renderSlice: function (valuenum, highlight) {
            var target = this.target,
                options = this.options,
                radius = this.radius,
                borderWidth = options.get('borderWidth'),
                offset = options.get('offset'),
                circle = 2 * Math.PI,
                values = this.values,
                total = this.total,
                next = offset ? (2*Math.PI)*(offset/360) : 0,
                start, end, i, vlen, color;

            vlen = values.length;
            for (i = 0; i < vlen; i++) {
                start = next;
                end = next;
                if (total > 0) {  // avoid divide by zero
                    end = next + (circle * (values[i] / total));
                }
                if (valuenum === i) {
                    color = options.get('sliceColors')[i % options.get('sliceColors').length];
                    if (highlight) {
                        color = this.calcHighlightColor(color, options);
                    }

                    return target.drawPieSlice(radius, radius, radius - borderWidth, start, end, undefined, color);
                }
                next = end;
            }
        },

        render: function () {
            var target = this.target,
                values = this.values,
                options = this.options,
                radius = this.radius,
                borderWidth = options.get('borderWidth'),
                shape, i;

            if (!pie._super.render.call(this)) {
                return;
            }
            if (borderWidth) {
                target.drawCircle(radius, radius, Math.floor(radius - (borderWidth / 2)),
                    options.get('borderColor'), undefined, borderWidth).append();
            }
            for (i = values.length; i--;) {
                if (values[i]) { // don't render zero values
                    shape = this.renderSlice(i).append();
                    this.valueShapes[i] = shape.id; // store just the shapeid
                    this.shapes[shape.id] = i;
                }
            }
            target.render();
        }
    });

    /**
     * Box plots
     */
    $.fn.sparkline.box = box = createClass($.fn.sparkline._base, {
        type: 'box',

        init: function (el, values, options, width, height) {
            box._super.init.call(this, el, values, options, width, height);
            this.values = $.map(values, Number);
            this.width = options.get('width') === 'auto' ? '4.0em' : width;
            this.initTarget();
            if (!this.values.length) {
                this.disabled = 1;
            }
        },

        /**
         * Simulate a single region
         */
        getRegion: function () {
            return 1;
        },

        getCurrentRegionFields: function () {
            var result = [
                { field: 'lq', value: this.quartiles[0] },
                { field: 'med', value: this.quartiles[1] },
                { field: 'uq', value: this.quartiles[2] }
            ];
            if (this.loutlier !== undefined) {
                result.push({ field: 'lo', value: this.loutlier});
            }
            if (this.routlier !== undefined) {
                result.push({ field: 'ro', value: this.routlier});
            }
            if (this.lwhisker !== undefined) {
                result.push({ field: 'lw', value: this.lwhisker});
            }
            if (this.rwhisker !== undefined) {
                result.push({ field: 'rw', value: this.rwhisker});
            }
            return result;
        },

        render: function () {
            var target = this.target,
                values = this.values,
                vlen = values.length,
                options = this.options,
                canvasWidth = this.canvasWidth,
                canvasHeight = this.canvasHeight,
                minValue = options.get('chartRangeMin') === undefined ? Math.min.apply(Math, values) : options.get('chartRangeMin'),
                maxValue = options.get('chartRangeMax') === undefined ? Math.max.apply(Math, values) : options.get('chartRangeMax'),
                canvasLeft = 0,
                lwhisker, loutlier, iqr, q1, q2, q3, rwhisker, routlier, i,
                size, unitSize;

            if (!box._super.render.call(this)) {
                return;
            }

            if (options.get('raw')) {
                if (options.get('showOutliers') && values.length > 5) {
                    loutlier = values[0];
                    lwhisker = values[1];
                    q1 = values[2];
                    q2 = values[3];
                    q3 = values[4];
                    rwhisker = values[5];
                    routlier = values[6];
                } else {
                    lwhisker = values[0];
                    q1 = values[1];
                    q2 = values[2];
                    q3 = values[3];
                    rwhisker = values[4];
                }
            } else {
                values.sort(function (a, b) { return a - b; });
                q1 = quartile(values, 1);
                q2 = quartile(values, 2);
                q3 = quartile(values, 3);
                iqr = q3 - q1;
                if (options.get('showOutliers')) {
                    lwhisker = rwhisker = undefined;
                    for (i = 0; i < vlen; i++) {
                        if (lwhisker === undefined && values[i] > q1 - (iqr * options.get('outlierIQR'))) {
                            lwhisker = values[i];
                        }
                        if (values[i] < q3 + (iqr * options.get('outlierIQR'))) {
                            rwhisker = values[i];
                        }
                    }
                    loutlier = values[0];
                    routlier = values[vlen - 1];
                } else {
                    lwhisker = values[0];
                    rwhisker = values[vlen - 1];
                }
            }
            this.quartiles = [q1, q2, q3];
            this.lwhisker = lwhisker;
            this.rwhisker = rwhisker;
            this.loutlier = loutlier;
            this.routlier = routlier;

            unitSize = canvasWidth / (maxValue - minValue + 1);
            if (options.get('showOutliers')) {
                canvasLeft = Math.ceil(options.get('spotRadius'));
                canvasWidth -= 2 * Math.ceil(options.get('spotRadius'));
                unitSize = canvasWidth / (maxValue - minValue + 1);
                if (loutlier < lwhisker) {
                    target.drawCircle((loutlier - minValue) * unitSize + canvasLeft,
                        canvasHeight / 2,
                        options.get('spotRadius'),
                        options.get('outlierLineColor'),
                        options.get('outlierFillColor')).append();
                }
                if (routlier > rwhisker) {
                    target.drawCircle((routlier - minValue) * unitSize + canvasLeft,
                        canvasHeight / 2,
                        options.get('spotRadius'),
                        options.get('outlierLineColor'),
                        options.get('outlierFillColor')).append();
                }
            }

            // box
            target.drawRect(
                Math.round((q1 - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight * 0.1),
                Math.round((q3 - q1) * unitSize),
                Math.round(canvasHeight * 0.8),
                options.get('boxLineColor'),
                options.get('boxFillColor')).append();
            // left whisker
            target.drawLine(
                Math.round((lwhisker - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight / 2),
                Math.round((q1 - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight / 2),
                options.get('lineColor')).append();
            target.drawLine(
                Math.round((lwhisker - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight / 4),
                Math.round((lwhisker - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight - canvasHeight / 4),
                options.get('whiskerColor')).append();
            // right whisker
            target.drawLine(Math.round((rwhisker - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight / 2),
                Math.round((q3 - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight / 2),
                options.get('lineColor')).append();
            target.drawLine(
                Math.round((rwhisker - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight / 4),
                Math.round((rwhisker - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight - canvasHeight / 4),
                options.get('whiskerColor')).append();
            // median line
            target.drawLine(
                Math.round((q2 - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight * 0.1),
                Math.round((q2 - minValue) * unitSize + canvasLeft),
                Math.round(canvasHeight * 0.9),
                options.get('medianColor')).append();
            if (options.get('target')) {
                size = Math.ceil(options.get('spotRadius'));
                target.drawLine(
                    Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
                    Math.round((canvasHeight / 2) - size),
                    Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
                    Math.round((canvasHeight / 2) + size),
                    options.get('targetColor')).append();
                target.drawLine(
                    Math.round((options.get('target') - minValue) * unitSize + canvasLeft - size),
                    Math.round(canvasHeight / 2),
                    Math.round((options.get('target') - minValue) * unitSize + canvasLeft + size),
                    Math.round(canvasHeight / 2),
                    options.get('targetColor')).append();
            }
            target.render();
        }
    });

    // Setup a very simple "virtual canvas" to make drawing the few shapes we need easier
    // This is accessible as $(foo).simpledraw()

    // Detect browser renderer support
    (function() {
        if (document.namespaces && !document.namespaces.v) {
            $.fn.sparkline.hasVML = true;
            document.namespaces.add('v', 'urn:schemas-microsoft-com:vml', '#default#VML');
        } else {
            $.fn.sparkline.hasVML = false;
        }

        var el = document.createElement('canvas');
        $.fn.sparkline.hasCanvas = !!(el.getContext && el.getContext('2d'));

    })()

    VShape = createClass({
        init: function (target, id, type, args) {
            this.target = target;
            this.id = id;
            this.type = type;
            this.args = args;
        },
        append: function () {
            this.target.appendShape(this);
            return this;
        }
    });

    VCanvas_base = createClass({
        _pxregex: /(\d+)(px)?\s*$/i,

        init: function (width, height, target) {
            if (!width) {
                return;
            }
            this.width = width;
            this.height = height;
            this.target = target;
            this.lastShapeId = null;
            if (target[0]) {
                target = target[0];
            }
            $.data(target, '_jqs_vcanvas', this);
        },

        drawLine: function (x1, y1, x2, y2, lineColor, lineWidth) {
            return this.drawShape([[x1, y1], [x2, y2]], lineColor, lineWidth);
        },

        drawShape: function (path, lineColor, fillColor, lineWidth) {
            return this._genShape('Shape', [path, lineColor, fillColor, lineWidth]);
        },

        drawCircle: function (x, y, radius, lineColor, fillColor, lineWidth) {
            return this._genShape('Circle', [x, y, radius, lineColor, fillColor, lineWidth]);
        },

        drawPieSlice: function (x, y, radius, startAngle, endAngle, lineColor, fillColor) {
            return this._genShape('PieSlice', [x, y, radius, startAngle, endAngle, lineColor, fillColor]);
        },

        drawRect: function (x, y, width, height, lineColor, fillColor) {
            return this._genShape('Rect', [x, y, width, height, lineColor, fillColor]);
        },

        getElement: function () {
            return this.canvas;
        },

        /**
         * Return the most recently inserted shape id
         */
        getLastShapeId: function () {
            return this.lastShapeId;
        },

        /**
         * Clear and reset the canvas
         */
        reset: function () {
            alert('reset not implemented');
        },

        _insert: function (el, target) {
            $(target).html(el);
        },

        /**
         * Calculate the pixel dimensions of the canvas
         */
        _calculatePixelDims: function (width, height, canvas) {
            // XXX This should probably be a configurable option
            var match;
            match = this._pxregex.exec(height);
            if (match) {
                this.pixelHeight = match[1];
            } else {
                this.pixelHeight = $(canvas).height();
            }
            match = this._pxregex.exec(width);
            if (match) {
                this.pixelWidth = match[1];
            } else {
                this.pixelWidth = $(canvas).width();
            }
        },

        /**
         * Generate a shape object and id for later rendering
         */
        _genShape: function (shapetype, shapeargs) {
            var id = shapeCount++;
            shapeargs.unshift(id);
            return new VShape(this, id, shapetype, shapeargs);
        },

        /**
         * Add a shape to the end of the render queue
         */
        appendShape: function (shape) {
            alert('appendShape not implemented');
        },

        /**
         * Replace one shape with another
         */
        replaceWithShape: function (shapeid, shape) {
            alert('replaceWithShape not implemented');
        },

        /**
         * Insert one shape after another in the render queue
         */
        insertAfterShape: function (shapeid, shape) {
            alert('insertAfterShape not implemented');
        },

        /**
         * Remove a shape from the queue
         */
        removeShapeId: function (shapeid) {
            alert('removeShapeId not implemented');
        },

        /**
         * Find a shape at the specified x/y co-ordinates
         */
        getShapeAt: function (el, x, y) {
            alert('getShapeAt not implemented');
        },

        /**
         * Render all queued shapes onto the canvas
         */
        render: function () {
            alert('render not implemented');
        }
    });

    VCanvas_canvas = createClass(VCanvas_base, {
        init: function (width, height, target, interact) {
            VCanvas_canvas._super.init.call(this, width, height, target);
            this.canvas = document.createElement('canvas');
            if (target[0]) {
                target = target[0];
            }
            $.data(target, '_jqs_vcanvas', this);
            $(this.canvas).css({ display: 'inline-block', width: width, height: height, verticalAlign: 'top' });
            this._insert(this.canvas, target);
            this._calculatePixelDims(width, height, this.canvas);
            this.canvas.width = this.pixelWidth;
            this.canvas.height = this.pixelHeight;
            this.interact = interact;
            this.shapes = {};
            this.shapeseq = [];
            this.currentTargetShapeId = undefined;
            $(this.canvas).css({width: this.pixelWidth, height: this.pixelHeight});
        },

        _getContext: function (lineColor, fillColor, lineWidth) {
            var context = this.canvas.getContext('2d');
            if (lineColor !== undefined) {
                context.strokeStyle = lineColor;
            }
            context.lineWidth = lineWidth === undefined ? 1 : lineWidth;
            if (fillColor !== undefined) {
                context.fillStyle = fillColor;
            }
            return context;
        },

        reset: function () {
            var context = this._getContext();
            context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
            this.shapes = {};
            this.shapeseq = [];
            this.currentTargetShapeId = undefined;
        },

        _drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
            var context = this._getContext(lineColor, fillColor, lineWidth),
                i, plen;
            context.beginPath();
            context.moveTo(path[0][0] + 0.5, path[0][1] + 0.5);
            for (i = 1, plen = path.length; i < plen; i++) {
                context.lineTo(path[i][0] + 0.5, path[i][1] + 0.5); // the 0.5 offset gives us crisp pixel-width lines
            }
            if (lineColor !== undefined) {
                context.stroke();
            }
            if (fillColor !== undefined) {
                context.fill();
            }
            if (this.targetX !== undefined && this.targetY !== undefined &&
                context.isPointInPath(this.targetX, this.targetY)) {
                this.currentTargetShapeId = shapeid;
            }
        },

        _drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
            var context = this._getContext(lineColor, fillColor, lineWidth);
            context.beginPath();
            context.arc(x, y, radius, 0, 2 * Math.PI, false);
            if (this.targetX !== undefined && this.targetY !== undefined &&
                context.isPointInPath(this.targetX, this.targetY)) {
                this.currentTargetShapeId = shapeid;
            }
            if (lineColor !== undefined) {
                context.stroke();
            }
            if (fillColor !== undefined) {
                context.fill();
            }
        },

        _drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
            var context = this._getContext(lineColor, fillColor);
            context.beginPath();
            context.moveTo(x, y);
            context.arc(x, y, radius, startAngle, endAngle, false);
            context.lineTo(x, y);
            context.closePath();
            if (lineColor !== undefined) {
                context.stroke();
            }
            if (fillColor) {
                context.fill();
            }
            if (this.targetX !== undefined && this.targetY !== undefined &&
                context.isPointInPath(this.targetX, this.targetY)) {
                this.currentTargetShapeId = shapeid;
            }
        },

        _drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
            return this._drawShape(shapeid, [[x, y], [x + width, y], [x + width, y + height], [x, y + height], [x, y]], lineColor, fillColor);
        },

        appendShape: function (shape) {
            this.shapes[shape.id] = shape;
            this.shapeseq.push(shape.id);
            this.lastShapeId = shape.id;
            return shape.id;
        },

        replaceWithShape: function (shapeid, shape) {
            var shapeseq = this.shapeseq,
                i;
            this.shapes[shape.id] = shape;
            for (i = shapeseq.length; i--;) {
                if (shapeseq[i] == shapeid) {
                    shapeseq[i] = shape.id;
                }
            }
            delete this.shapes[shapeid];
        },

        replaceWithShapes: function (shapeids, shapes) {
            var shapeseq = this.shapeseq,
                shapemap = {},
                sid, i, first;

            for (i = shapeids.length; i--;) {
                shapemap[shapeids[i]] = true;
            }
            for (i = shapeseq.length; i--;) {
                sid = shapeseq[i];
                if (shapemap[sid]) {
                    shapeseq.splice(i, 1);
                    delete this.shapes[sid];
                    first = i;
                }
            }
            for (i = shapes.length; i--;) {
                shapeseq.splice(first, 0, shapes[i].id);
                this.shapes[shapes[i].id] = shapes[i];
            }

        },

        insertAfterShape: function (shapeid, shape) {
            var shapeseq = this.shapeseq,
                i;
            for (i = shapeseq.length; i--;) {
                if (shapeseq[i] === shapeid) {
                    shapeseq.splice(i + 1, 0, shape.id);
                    this.shapes[shape.id] = shape;
                    return;
                }
            }
        },

        removeShapeId: function (shapeid) {
            var shapeseq = this.shapeseq,
                i;
            for (i = shapeseq.length; i--;) {
                if (shapeseq[i] === shapeid) {
                    shapeseq.splice(i, 1);
                    break;
                }
            }
            delete this.shapes[shapeid];
        },

        getShapeAt: function (el, x, y) {
            this.targetX = x;
            this.targetY = y;
            this.render();
            return this.currentTargetShapeId;
        },

        render: function () {
            var shapeseq = this.shapeseq,
                shapes = this.shapes,
                shapeCount = shapeseq.length,
                context = this._getContext(),
                shapeid, shape, i;
            context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
            for (i = 0; i < shapeCount; i++) {
                shapeid = shapeseq[i];
                shape = shapes[shapeid];
                this['_draw' + shape.type].apply(this, shape.args);
            }
            if (!this.interact) {
                // not interactive so no need to keep the shapes array
                this.shapes = {};
                this.shapeseq = [];
            }
        }

    });

    VCanvas_vml = createClass(VCanvas_base, {
        init: function (width, height, target) {
            var groupel;
            VCanvas_vml._super.init.call(this, width, height, target);
            if (target[0]) {
                target = target[0];
            }
            $.data(target, '_jqs_vcanvas', this);
            this.canvas = document.createElement('span');
            $(this.canvas).css({ display: 'inline-block', position: 'relative', overflow: 'hidden', width: width, height: height, margin: '0px', padding: '0px', verticalAlign: 'top'});
            this._insert(this.canvas, target);
            this._calculatePixelDims(width, height, this.canvas);
            this.canvas.width = this.pixelWidth;
            this.canvas.height = this.pixelHeight;
            groupel = '<v:group coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '"' +
                    ' style="position:absolute;top:0;left:0;width:' + this.pixelWidth + 'px;height=' + this.pixelHeight + 'px;"></v:group>';
            this.canvas.insertAdjacentHTML('beforeEnd', groupel);
            this.group = $(this.canvas).children()[0];
            this.rendered = false;
            this.prerender = '';
        },

        _drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
            var vpath = [],
                initial, stroke, fill, closed, vel, plen, i;
            for (i = 0, plen = path.length; i < plen; i++) {
                vpath[i] = '' + (path[i][0]) + ',' + (path[i][1]);
            }
            initial = vpath.splice(0, 1);
            lineWidth = lineWidth === undefined ? 1 : lineWidth;
            stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
            fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
            closed = vpath[0] === vpath[vpath.length - 1] ? 'x ' : '';
            vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
                 ' id="jqsshape' + shapeid + '" ' +
                 stroke +
                 fill +
                ' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
                ' path="m ' + initial + ' l ' + vpath.join(', ') + ' ' + closed + 'e">' +
                ' </v:shape>';
            return vel;
        },

        _drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
            var stroke, fill, vel;
            x -= radius;
            y -= radius;
            stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
            fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
            vel = '<v:oval ' +
                 ' id="jqsshape' + shapeid + '" ' +
                stroke +
                fill +
                ' style="position:absolute;top:' + y + 'px; left:' + x + 'px; width:' + (radius * 2) + 'px; height:' + (radius * 2) + 'px"></v:oval>';
            return vel;

        },

        _drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
            var vpath, startx, starty, endx, endy, stroke, fill, vel;
            if (startAngle === endAngle) {
                return '';  // VML seems to have problem when start angle equals end angle.
            }
            if ((endAngle - startAngle) === (2 * Math.PI)) {
                startAngle = 0.0;  // VML seems to have a problem when drawing a full circle that doesn't start 0
                endAngle = (2 * Math.PI);
            }

            startx = x + Math.round(Math.cos(startAngle) * radius);
            starty = y + Math.round(Math.sin(startAngle) * radius);
            endx = x + Math.round(Math.cos(endAngle) * radius);
            endy = y + Math.round(Math.sin(endAngle) * radius);

            if (startx === endx && starty === endy) {
                if ((endAngle - startAngle) < Math.PI) {
                    // Prevent very small slices from being mistaken as a whole pie
                    return '';
                }
                // essentially going to be the entire circle, so ignore startAngle
                startx = endx = x + radius;
                starty = endy = y;
            }

            if (startx === endx && starty === endy && (endAngle - startAngle) < Math.PI) {
                return '';
            }

            vpath = [x - radius, y - radius, x + radius, y + radius, startx, starty, endx, endy];
            stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="1px" strokeColor="' + lineColor + '" ';
            fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
            vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
                 ' id="jqsshape' + shapeid + '" ' +
                 stroke +
                 fill +
                ' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
                ' path="m ' + x + ',' + y + ' wa ' + vpath.join(', ') + ' x e">' +
                ' </v:shape>';
            return vel;
        },

        _drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
            return this._drawShape(shapeid, [[x, y], [x, y + height], [x + width, y + height], [x + width, y], [x, y]], lineColor, fillColor);
        },

        reset: function () {
            this.group.innerHTML = '';
        },

        appendShape: function (shape) {
            var vel = this['_draw' + shape.type].apply(this, shape.args);
            if (this.rendered) {
                this.group.insertAdjacentHTML('beforeEnd', vel);
            } else {
                this.prerender += vel;
            }
            this.lastShapeId = shape.id;
            return shape.id;
        },

        replaceWithShape: function (shapeid, shape) {
            var existing = $('#jqsshape' + shapeid),
                vel = this['_draw' + shape.type].apply(this, shape.args);
            existing[0].outerHTML = vel;
        },

        replaceWithShapes: function (shapeids, shapes) {
            // replace the first shapeid with all the new shapes then toast the remaining old shapes
            var existing = $('#jqsshape' + shapeids[0]),
                replace = '',
                slen = shapes.length,
                i;
            for (i = 0; i < slen; i++) {
                replace += this['_draw' + shapes[i].type].apply(this, shapes[i].args);
            }
            existing[0].outerHTML = replace;
            for (i = 1; i < shapeids.length; i++) {
                $('#jqsshape' + shapeids[i]).remove();
            }
        },

        insertAfterShape: function (shapeid, shape) {
            var existing = $('#jqsshape' + shapeid),
                 vel = this['_draw' + shape.type].apply(this, shape.args);
            existing[0].insertAdjacentHTML('afterEnd', vel);
        },

        removeShapeId: function (shapeid) {
            var existing = $('#jqsshape' + shapeid);
            this.group.removeChild(existing[0]);
        },

        getShapeAt: function (el, x, y) {
            var shapeid = el.id.substr(8);
            return shapeid;
        },

        render: function () {
            if (!this.rendered) {
                // batch the intial render into a single repaint
                this.group.innerHTML = this.prerender;
                this.rendered = true;
            }
        }
    });

}));
( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [ "jquery" ], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
} ( function( $ ) {

$.ui = $.ui || {};

return $.ui.version = "1.12.1";

} ) );


/*!
 * jQuery UI Keycode 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Keycode
//>>group: Core
//>>description: Provide keycodes as keynames
//>>docs: http://api.jqueryui.com/jQuery.ui.keyCode/

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [ "jquery", "./version" ], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
} ( function( $ ) {
return $.ui.keyCode = {
	BACKSPACE: 8,
	COMMA: 188,
	DELETE: 46,
	DOWN: 40,
	END: 35,
	ENTER: 13,
	ESCAPE: 27,
	HOME: 36,
	LEFT: 37,
	PAGE_DOWN: 34,
	PAGE_UP: 33,
	PERIOD: 190,
	RIGHT: 39,
	SPACE: 32,
	TAB: 9,
	UP: 38
};

} ) );


/*!
 * jQuery UI Position 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/position/
 */

//>>label: Position
//>>group: Core
//>>description: Positions elements relative to other elements.
//>>docs: http://api.jqueryui.com/position/
//>>demos: http://jqueryui.com/position/

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [ "jquery", "./version" ], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
}( function( $ ) {
( function() {
var cachedScrollbarWidth,
	max = Math.max,
	abs = Math.abs,
	rhorizontal = /left|center|right/,
	rvertical = /top|center|bottom/,
	roffset = /[\+\-]\d+(\.[\d]+)?%?/,
	rposition = /^\w+/,
	rpercent = /%$/,
	_position = $.fn.position;

function getOffsets( offsets, width, height ) {
	return [
		parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
		parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
	];
}

function parseCss( element, property ) {
	return parseInt( $.css( element, property ), 10 ) || 0;
}

function getDimensions( elem ) {
	var raw = elem[ 0 ];
	if ( raw.nodeType === 9 ) {
		return {
			width: elem.width(),
			height: elem.height(),
			offset: { top: 0, left: 0 }
		};
	}
	if ( $.isWindow( raw ) ) {
		return {
			width: elem.width(),
			height: elem.height(),
			offset: { top: elem.scrollTop(), left: elem.scrollLeft() }
		};
	}
	if ( raw.preventDefault ) {
		return {
			width: 0,
			height: 0,
			offset: { top: raw.pageY, left: raw.pageX }
		};
	}
	return {
		width: elem.outerWidth(),
		height: elem.outerHeight(),
		offset: elem.offset()
	};
}

$.position = {
	scrollbarWidth: function() {
		if ( cachedScrollbarWidth !== undefined ) {
			return cachedScrollbarWidth;
		}
		var w1, w2,
			div = $( "<div " +
				"style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'>" +
				"<div style='height:100px;width:auto;'></div></div>" ),
			innerDiv = div.children()[ 0 ];

		$( "body" ).append( div );
		w1 = innerDiv.offsetWidth;
		div.css( "overflow", "scroll" );

		w2 = innerDiv.offsetWidth;

		if ( w1 === w2 ) {
			w2 = div[ 0 ].clientWidth;
		}

		div.remove();

		return ( cachedScrollbarWidth = w1 - w2 );
	},
	getScrollInfo: function( within ) {
		var overflowX = within.isWindow || within.isDocument ? "" :
				within.element.css( "overflow-x" ),
			overflowY = within.isWindow || within.isDocument ? "" :
				within.element.css( "overflow-y" ),
			hasOverflowX = overflowX === "scroll" ||
				( overflowX === "auto" && within.width < within.element[ 0 ].scrollWidth ),
			hasOverflowY = overflowY === "scroll" ||
				( overflowY === "auto" && within.height < within.element[ 0 ].scrollHeight );
		return {
			width: hasOverflowY ? $.position.scrollbarWidth() : 0,
			height: hasOverflowX ? $.position.scrollbarWidth() : 0
		};
	},
	getWithinInfo: function( element ) {
		var withinElement = $( element || window ),
			isWindow = $.isWindow( withinElement[ 0 ] ),
			isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9,
			hasOffset = !isWindow && !isDocument;
		return {
			element: withinElement,
			isWindow: isWindow,
			isDocument: isDocument,
			offset: hasOffset ? $( element ).offset() : { left: 0, top: 0 },
			scrollLeft: withinElement.scrollLeft(),
			scrollTop: withinElement.scrollTop(),
			width: withinElement.outerWidth(),
			height: withinElement.outerHeight()
		};
	}
};

$.fn.position = function( options ) {
	if ( !options || !options.of ) {
		return _position.apply( this, arguments );
	}

	// Make a copy, we don't want to modify arguments
	options = $.extend( {}, options );

	var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,
		target = $( options.of ),
		within = $.position.getWithinInfo( options.within ),
		scrollInfo = $.position.getScrollInfo( within ),
		collision = ( options.collision || "flip" ).split( " " ),
		offsets = {};

	dimensions = getDimensions( target );
	if ( target[ 0 ].preventDefault ) {

		// Force left top to allow flipping
		options.at = "left top";
	}
	targetWidth = dimensions.width;
	targetHeight = dimensions.height;
	targetOffset = dimensions.offset;

	// Clone to reuse original targetOffset later
	basePosition = $.extend( {}, targetOffset );

	// Force my and at to have valid horizontal and vertical positions
	// if a value is missing or invalid, it will be converted to center
	$.each( [ "my", "at" ], function() {
		var pos = ( options[ this ] || "" ).split( " " ),
			horizontalOffset,
			verticalOffset;

		if ( pos.length === 1 ) {
			pos = rhorizontal.test( pos[ 0 ] ) ?
				pos.concat( [ "center" ] ) :
				rvertical.test( pos[ 0 ] ) ?
					[ "center" ].concat( pos ) :
					[ "center", "center" ];
		}
		pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
		pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";

		// Calculate offsets
		horizontalOffset = roffset.exec( pos[ 0 ] );
		verticalOffset = roffset.exec( pos[ 1 ] );
		offsets[ this ] = [
			horizontalOffset ? horizontalOffset[ 0 ] : 0,
			verticalOffset ? verticalOffset[ 0 ] : 0
		];

		// Reduce to just the positions without the offsets
		options[ this ] = [
			rposition.exec( pos[ 0 ] )[ 0 ],
			rposition.exec( pos[ 1 ] )[ 0 ]
		];
	} );

	// Normalize collision option
	if ( collision.length === 1 ) {
		collision[ 1 ] = collision[ 0 ];
	}

	if ( options.at[ 0 ] === "right" ) {
		basePosition.left += targetWidth;
	} else if ( options.at[ 0 ] === "center" ) {
		basePosition.left += targetWidth / 2;
	}

	if ( options.at[ 1 ] === "bottom" ) {
		basePosition.top += targetHeight;
	} else if ( options.at[ 1 ] === "center" ) {
		basePosition.top += targetHeight / 2;
	}

	atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
	basePosition.left += atOffset[ 0 ];
	basePosition.top += atOffset[ 1 ];

	return this.each( function() {
		var collisionPosition, using,
			elem = $( this ),
			elemWidth = elem.outerWidth(),
			elemHeight = elem.outerHeight(),
			marginLeft = parseCss( this, "marginLeft" ),
			marginTop = parseCss( this, "marginTop" ),
			collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) +
				scrollInfo.width,
			collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) +
				scrollInfo.height,
			position = $.extend( {}, basePosition ),
			myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );

		if ( options.my[ 0 ] === "right" ) {
			position.left -= elemWidth;
		} else if ( options.my[ 0 ] === "center" ) {
			position.left -= elemWidth / 2;
		}

		if ( options.my[ 1 ] === "bottom" ) {
			position.top -= elemHeight;
		} else if ( options.my[ 1 ] === "center" ) {
			position.top -= elemHeight / 2;
		}

		position.left += myOffset[ 0 ];
		position.top += myOffset[ 1 ];

		collisionPosition = {
			marginLeft: marginLeft,
			marginTop: marginTop
		};

		$.each( [ "left", "top" ], function( i, dir ) {
			if ( $.ui.position[ collision[ i ] ] ) {
				$.ui.position[ collision[ i ] ][ dir ]( position, {
					targetWidth: targetWidth,
					targetHeight: targetHeight,
					elemWidth: elemWidth,
					elemHeight: elemHeight,
					collisionPosition: collisionPosition,
					collisionWidth: collisionWidth,
					collisionHeight: collisionHeight,
					offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
					my: options.my,
					at: options.at,
					within: within,
					elem: elem
				} );
			}
		} );

		if ( options.using ) {

			// Adds feedback as second argument to using callback, if present
			using = function( props ) {
				var left = targetOffset.left - position.left,
					right = left + targetWidth - elemWidth,
					top = targetOffset.top - position.top,
					bottom = top + targetHeight - elemHeight,
					feedback = {
						target: {
							element: target,
							left: targetOffset.left,
							top: targetOffset.top,
							width: targetWidth,
							height: targetHeight
						},
						element: {
							element: elem,
							left: position.left,
							top: position.top,
							width: elemWidth,
							height: elemHeight
						},
						horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
						vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
					};
				if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
					feedback.horizontal = "center";
				}
				if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
					feedback.vertical = "middle";
				}
				if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
					feedback.important = "horizontal";
				} else {
					feedback.important = "vertical";
				}
				options.using.call( this, props, feedback );
			};
		}

		elem.offset( $.extend( position, { using: using } ) );
	} );
};

$.ui.position = {
	fit: {
		left: function( position, data ) {
			var within = data.within,
				withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
				outerWidth = within.width,
				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
				overLeft = withinOffset - collisionPosLeft,
				overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
				newOverRight;

			// Element is wider than within
			if ( data.collisionWidth > outerWidth ) {

				// Element is initially over the left side of within
				if ( overLeft > 0 && overRight <= 0 ) {
					newOverRight = position.left + overLeft + data.collisionWidth - outerWidth -
						withinOffset;
					position.left += overLeft - newOverRight;

				// Element is initially over right side of within
				} else if ( overRight > 0 && overLeft <= 0 ) {
					position.left = withinOffset;

				// Element is initially over both left and right sides of within
				} else {
					if ( overLeft > overRight ) {
						position.left = withinOffset + outerWidth - data.collisionWidth;
					} else {
						position.left = withinOffset;
					}
				}

			// Too far left -> align with left edge
			} else if ( overLeft > 0 ) {
				position.left += overLeft;

			// Too far right -> align with right edge
			} else if ( overRight > 0 ) {
				position.left -= overRight;

			// Adjust based on position and margin
			} else {
				position.left = max( position.left - collisionPosLeft, position.left );
			}
		},
		top: function( position, data ) {
			var within = data.within,
				withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
				outerHeight = data.within.height,
				collisionPosTop = position.top - data.collisionPosition.marginTop,
				overTop = withinOffset - collisionPosTop,
				overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
				newOverBottom;

			// Element is taller than within
			if ( data.collisionHeight > outerHeight ) {

				// Element is initially over the top of within
				if ( overTop > 0 && overBottom <= 0 ) {
					newOverBottom = position.top + overTop + data.collisionHeight - outerHeight -
						withinOffset;
					position.top += overTop - newOverBottom;

				// Element is initially over bottom of within
				} else if ( overBottom > 0 && overTop <= 0 ) {
					position.top = withinOffset;

				// Element is initially over both top and bottom of within
				} else {
					if ( overTop > overBottom ) {
						position.top = withinOffset + outerHeight - data.collisionHeight;
					} else {
						position.top = withinOffset;
					}
				}

			// Too far up -> align with top
			} else if ( overTop > 0 ) {
				position.top += overTop;

			// Too far down -> align with bottom edge
			} else if ( overBottom > 0 ) {
				position.top -= overBottom;

			// Adjust based on position and margin
			} else {
				position.top = max( position.top - collisionPosTop, position.top );
			}
		}
	},
	flip: {
		left: function( position, data ) {
			var within = data.within,
				withinOffset = within.offset.left + within.scrollLeft,
				outerWidth = within.width,
				offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
				overLeft = collisionPosLeft - offsetLeft,
				overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
				myOffset = data.my[ 0 ] === "left" ?
					-data.elemWidth :
					data.my[ 0 ] === "right" ?
						data.elemWidth :
						0,
				atOffset = data.at[ 0 ] === "left" ?
					data.targetWidth :
					data.at[ 0 ] === "right" ?
						-data.targetWidth :
						0,
				offset = -2 * data.offset[ 0 ],
				newOverRight,
				newOverLeft;

			if ( overLeft < 0 ) {
				newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth -
					outerWidth - withinOffset;
				if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
					position.left += myOffset + atOffset + offset;
				}
			} else if ( overRight > 0 ) {
				newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset +
					atOffset + offset - offsetLeft;
				if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
					position.left += myOffset + atOffset + offset;
				}
			}
		},
		top: function( position, data ) {
			var within = data.within,
				withinOffset = within.offset.top + within.scrollTop,
				outerHeight = within.height,
				offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
				collisionPosTop = position.top - data.collisionPosition.marginTop,
				overTop = collisionPosTop - offsetTop,
				overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
				top = data.my[ 1 ] === "top",
				myOffset = top ?
					-data.elemHeight :
					data.my[ 1 ] === "bottom" ?
						data.elemHeight :
						0,
				atOffset = data.at[ 1 ] === "top" ?
					data.targetHeight :
					data.at[ 1 ] === "bottom" ?
						-data.targetHeight :
						0,
				offset = -2 * data.offset[ 1 ],
				newOverTop,
				newOverBottom;
			if ( overTop < 0 ) {
				newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight -
					outerHeight - withinOffset;
				if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) {
					position.top += myOffset + atOffset + offset;
				}
			} else if ( overBottom > 0 ) {
				newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset +
					offset - offsetTop;
				if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) {
					position.top += myOffset + atOffset + offset;
				}
			}
		}
	},
	flipfit: {
		left: function() {
			$.ui.position.flip.left.apply( this, arguments );
			$.ui.position.fit.left.apply( this, arguments );
		},
		top: function() {
			$.ui.position.flip.top.apply( this, arguments );
			$.ui.position.fit.top.apply( this, arguments );
		}
	}
};

} )();

return $.ui.position;

} ) );

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [ "jquery", "./version" ], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
} ( function( $ ) {
return $.ui.safeActiveElement = function( document ) {
	var activeElement;

	// Support: IE 9 only
	// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
	try {
		activeElement = document.activeElement;
	} catch ( error ) {
		activeElement = document.body;
	}

	// Support: IE 9 - 11 only
	// IE may return null instead of an element
	// Interestingly, this only seems to occur when NOT in an iframe
	if ( !activeElement ) {
		activeElement = document.body;
	}

	// Support: IE 11 only
	// IE11 returns a seemingly empty object in some cases when accessing
	// document.activeElement from an <iframe>
	if ( !activeElement.nodeName ) {
		activeElement = document.body;
	}

	return activeElement;
};

} ) );


/*!
 * jQuery UI Unique ID 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: uniqueId
//>>group: Core
//>>description: Functions to generate and remove uniqueId's
//>>docs: http://api.jqueryui.com/uniqueId/

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [ "jquery", "./version" ], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
} ( function( $ ) {

return $.fn.extend( {
	uniqueId: ( function() {
		var uuid = 0;

		return function() {
			return this.each( function() {
				if ( !this.id ) {
					this.id = "ui-id-" + ( ++uuid );
				}
			} );
		};
	} )(),

	removeUniqueId: function() {
		return this.each( function() {
			if ( /^ui-id-\d+$/.test( this.id ) ) {
				$( this ).removeAttr( "id" );
			}
		} );
	}
} );

} ) );


/*!
 * jQuery UI Widget 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Widget
//>>group: Core
//>>description: Provides a factory for creating stateful widgets with a common API.
//>>docs: http://api.jqueryui.com/jQuery.widget/
//>>demos: http://jqueryui.com/widget/

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [ "jquery", "./version" ], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
}( function( $ ) {

var widgetUuid = 0;
var widgetSlice = Array.prototype.slice;

$.cleanData = ( function( orig ) {
	return function( elems ) {
		var events, elem, i;
		for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) {
			try {

				// Only trigger remove when necessary to save time
				events = $._data( elem, "events" );
				if ( events && events.remove ) {
					$( elem ).triggerHandler( "remove" );
				}

			// Http://bugs.jquery.com/ticket/8235
			} catch ( e ) {}
		}
		orig( elems );
	};
} )( $.cleanData );

$.widget = function( name, base, prototype ) {
	var existingConstructor, constructor, basePrototype;

	// ProxiedPrototype allows the provided prototype to remain unmodified
	// so that it can be used as a mixin for multiple widgets (#8876)
	var proxiedPrototype = {};

	var namespace = name.split( "." )[ 0 ];
	name = name.split( "." )[ 1 ];
	var fullName = namespace + "-" + name;

	if ( !prototype ) {
		prototype = base;
		base = $.Widget;
	}

	if ( $.isArray( prototype ) ) {
		prototype = $.extend.apply( null, [ {} ].concat( prototype ) );
	}

	// Create selector for plugin
	$.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
		return !!$.data( elem, fullName );
	};

	$[ namespace ] = $[ namespace ] || {};
	existingConstructor = $[ namespace ][ name ];
	constructor = $[ namespace ][ name ] = function( options, element ) {

		// Allow instantiation without "new" keyword
		if ( !this._createWidget ) {
			return new constructor( options, element );
		}

		// Allow instantiation without initializing for simple inheritance
		// must use "new" keyword (the code above always passes args)
		if ( arguments.length ) {
			this._createWidget( options, element );
		}
	};

	// Extend with the existing constructor to carry over any static properties
	$.extend( constructor, existingConstructor, {
		version: prototype.version,

		// Copy the object used to create the prototype in case we need to
		// redefine the widget later
		_proto: $.extend( {}, prototype ),

		// Track widgets that inherit from this widget in case this widget is
		// redefined after a widget inherits from it
		_childConstructors: []
	} );

	basePrototype = new base();

	// We need to make the options hash a property directly on the new instance
	// otherwise we'll modify the options hash on the prototype that we're
	// inheriting from
	basePrototype.options = $.widget.extend( {}, basePrototype.options );
	$.each( prototype, function( prop, value ) {
		if ( !$.isFunction( value ) ) {
			proxiedPrototype[ prop ] = value;
			return;
		}
		proxiedPrototype[ prop ] = ( function() {
			function _super() {
				return base.prototype[ prop ].apply( this, arguments );
			}

			function _superApply( args ) {
				return base.prototype[ prop ].apply( this, args );
			}

			return function() {
				var __super = this._super;
				var __superApply = this._superApply;
				var returnValue;

				this._super = _super;
				this._superApply = _superApply;

				returnValue = value.apply( this, arguments );

				this._super = __super;
				this._superApply = __superApply;

				return returnValue;
			};
		} )();
	} );
	constructor.prototype = $.widget.extend( basePrototype, {

		// TODO: remove support for widgetEventPrefix
		// always use the name + a colon as the prefix, e.g., draggable:start
		// don't prefix for widgets that aren't DOM-based
		widgetEventPrefix: existingConstructor ? ( basePrototype.widgetEventPrefix || name ) : name
	}, proxiedPrototype, {
		constructor: constructor,
		namespace: namespace,
		widgetName: name,
		widgetFullName: fullName
	} );

	// If this widget is being redefined then we need to find all widgets that
	// are inheriting from it and redefine all of them so that they inherit from
	// the new version of this widget. We're essentially trying to replace one
	// level in the prototype chain.
	if ( existingConstructor ) {
		$.each( existingConstructor._childConstructors, function( i, child ) {
			var childPrototype = child.prototype;

			// Redefine the child widget using the same prototype that was
			// originally used, but inherit from the new version of the base
			$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor,
				child._proto );
		} );

		// Remove the list of existing child constructors from the old constructor
		// so the old child constructors can be garbage collected
		delete existingConstructor._childConstructors;
	} else {
		base._childConstructors.push( constructor );
	}

	$.widget.bridge( name, constructor );

	return constructor;
};

$.widget.extend = function( target ) {
	var input = widgetSlice.call( arguments, 1 );
	var inputIndex = 0;
	var inputLength = input.length;
	var key;
	var value;

	for ( ; inputIndex < inputLength; inputIndex++ ) {
		for ( key in input[ inputIndex ] ) {
			value = input[ inputIndex ][ key ];
			if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {

				// Clone objects
				if ( $.isPlainObject( value ) ) {
					target[ key ] = $.isPlainObject( target[ key ] ) ?
						$.widget.extend( {}, target[ key ], value ) :

						// Don't extend strings, arrays, etc. with objects
						$.widget.extend( {}, value );

				// Copy everything else by reference
				} else {
					target[ key ] = value;
				}
			}
		}
	}
	return target;
};

$.widget.bridge = function( name, object ) {
	var fullName = object.prototype.widgetFullName || name;
	$.fn[ name ] = function( options ) {
		var isMethodCall = typeof options === "string";
		var args = widgetSlice.call( arguments, 1 );
		var returnValue = this;

		if ( isMethodCall ) {

			// If this is an empty collection, we need to have the instance method
			// return undefined instead of the jQuery instance
			if ( !this.length && options === "instance" ) {
				returnValue = undefined;
			} else {
				this.each( function() {
					var methodValue;
					var instance = $.data( this, fullName );

					if ( options === "instance" ) {
						returnValue = instance;
						return false;
					}

					if ( !instance ) {
						return $.error( "cannot call methods on " + name +
							" prior to initialization; " +
							"attempted to call method '" + options + "'" );
					}

					if ( !$.isFunction( instance[ options ] ) || options.charAt( 0 ) === "_" ) {
						return $.error( "no such method '" + options + "' for " + name +
							" widget instance" );
					}

					methodValue = instance[ options ].apply( instance, args );

					if ( methodValue !== instance && methodValue !== undefined ) {
						returnValue = methodValue && methodValue.jquery ?
							returnValue.pushStack( methodValue.get() ) :
							methodValue;
						return false;
					}
				} );
			}
		} else {

			// Allow multiple hashes to be passed on init
			if ( args.length ) {
				options = $.widget.extend.apply( null, [ options ].concat( args ) );
			}

			this.each( function() {
				var instance = $.data( this, fullName );
				if ( instance ) {
					instance.option( options || {} );
					if ( instance._init ) {
						instance._init();
					}
				} else {
					$.data( this, fullName, new object( options, this ) );
				}
			} );
		}

		return returnValue;
	};
};

$.Widget = function( /* options, element */ ) {};
$.Widget._childConstructors = [];

$.Widget.prototype = {
	widgetName: "widget",
	widgetEventPrefix: "",
	defaultElement: "<div>",

	options: {
		classes: {},
		disabled: false,

		// Callbacks
		create: null
	},

	_createWidget: function( options, element ) {
		element = $( element || this.defaultElement || this )[ 0 ];
		this.element = $( element );
		this.uuid = widgetUuid++;
		this.eventNamespace = "." + this.widgetName + this.uuid;

		this.bindings = $();
		this.hoverable = $();
		this.focusable = $();
		this.classesElementLookup = {};

		if ( element !== this ) {
			$.data( element, this.widgetFullName, this );
			this._on( true, this.element, {
				remove: function( event ) {
					if ( event.target === element ) {
						this.destroy();
					}
				}
			} );
			this.document = $( element.style ?

				// Element within the document
				element.ownerDocument :

				// Element is window or document
				element.document || element );
			this.window = $( this.document[ 0 ].defaultView || this.document[ 0 ].parentWindow );
		}

		this.options = $.widget.extend( {},
			this.options,
			this._getCreateOptions(),
			options );

		this._create();

		if ( this.options.disabled ) {
			this._setOptionDisabled( this.options.disabled );
		}

		this._trigger( "create", null, this._getCreateEventData() );
		this._init();
	},

	_getCreateOptions: function() {
		return {};
	},

	_getCreateEventData: $.noop,

	_create: $.noop,

	_init: $.noop,

	destroy: function() {
		var that = this;

		this._destroy();
		$.each( this.classesElementLookup, function( key, value ) {
			that._removeClass( value, key );
		} );

		// We can probably remove the unbind calls in 2.0
		// all event bindings should go through this._on()
		this.element
			.off( this.eventNamespace )
			.removeData( this.widgetFullName );
		this.widget()
			.off( this.eventNamespace )
			.removeAttr( "aria-disabled" );

		// Clean up events and states
		this.bindings.off( this.eventNamespace );
	},

	_destroy: $.noop,

	widget: function() {
		return this.element;
	},

	option: function( key, value ) {
		var options = key;
		var parts;
		var curOption;
		var i;

		if ( arguments.length === 0 ) {

			// Don't return a reference to the internal hash
			return $.widget.extend( {}, this.options );
		}

		if ( typeof key === "string" ) {

			// Handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
			options = {};
			parts = key.split( "." );
			key = parts.shift();
			if ( parts.length ) {
				curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
				for ( i = 0; i < parts.length - 1; i++ ) {
					curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
					curOption = curOption[ parts[ i ] ];
				}
				key = parts.pop();
				if ( arguments.length === 1 ) {
					return curOption[ key ] === undefined ? null : curOption[ key ];
				}
				curOption[ key ] = value;
			} else {
				if ( arguments.length === 1 ) {
					return this.options[ key ] === undefined ? null : this.options[ key ];
				}
				options[ key ] = value;
			}
		}

		this._setOptions( options );

		return this;
	},

	_setOptions: function( options ) {
		var key;

		for ( key in options ) {
			this._setOption( key, options[ key ] );
		}

		return this;
	},

	_setOption: function( key, value ) {
		if ( key === "classes" ) {
			this._setOptionClasses( value );
		}

		this.options[ key ] = value;

		if ( key === "disabled" ) {
			this._setOptionDisabled( value );
		}

		return this;
	},

	_setOptionClasses: function( value ) {
		var classKey, elements, currentElements;

		for ( classKey in value ) {
			currentElements = this.classesElementLookup[ classKey ];
			if ( value[ classKey ] === this.options.classes[ classKey ] ||
					!currentElements ||
					!currentElements.length ) {
				continue;
			}

			// We are doing this to create a new jQuery object because the _removeClass() call
			// on the next line is going to destroy the reference to the current elements being
			// tracked. We need to save a copy of this collection so that we can add the new classes
			// below.
			elements = $( currentElements.get() );
			this._removeClass( currentElements, classKey );

			// We don't use _addClass() here, because that uses this.options.classes
			// for generating the string of classes. We want to use the value passed in from
			// _setOption(), this is the new value of the classes option which was passed to
			// _setOption(). We pass this value directly to _classes().
			elements.addClass( this._classes( {
				element: elements,
				keys: classKey,
				classes: value,
				add: true
			} ) );
		}
	},

	_setOptionDisabled: function( value ) {
		this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null, !!value );

		// If the widget is becoming disabled, then nothing is interactive
		if ( value ) {
			this._removeClass( this.hoverable, null, "ui-state-hover" );
			this._removeClass( this.focusable, null, "ui-state-focus" );
		}
	},

	enable: function() {
		return this._setOptions( { disabled: false } );
	},

	disable: function() {
		return this._setOptions( { disabled: true } );
	},

	_classes: function( options ) {
		var full = [];
		var that = this;

		options = $.extend( {
			element: this.element,
			classes: this.options.classes || {}
		}, options );

		function processClassString( classes, checkOption ) {
			var current, i;
			for ( i = 0; i < classes.length; i++ ) {
				current = that.classesElementLookup[ classes[ i ] ] || $();
				if ( options.add ) {
					current = $( $.unique( current.get().concat( options.element.get() ) ) );
				} else {
					current = $( current.not( options.element ).get() );
				}
				that.classesElementLookup[ classes[ i ] ] = current;
				full.push( classes[ i ] );
				if ( checkOption && options.classes[ classes[ i ] ] ) {
					full.push( options.classes[ classes[ i ] ] );
				}
			}
		}

		this._on( options.element, {
			"remove": "_untrackClassesElement"
		} );

		if ( options.keys ) {
			processClassString( options.keys.match( /\S+/g ) || [], true );
		}
		if ( options.extra ) {
			processClassString( options.extra.match( /\S+/g ) || [] );
		}

		return full.join( " " );
	},

	_untrackClassesElement: function( event ) {
		var that = this;
		$.each( that.classesElementLookup, function( key, value ) {
			if ( $.inArray( event.target, value ) !== -1 ) {
				that.classesElementLookup[ key ] = $( value.not( event.target ).get() );
			}
		} );
	},

	_removeClass: function( element, keys, extra ) {
		return this._toggleClass( element, keys, extra, false );
	},

	_addClass: function( element, keys, extra ) {
		return this._toggleClass( element, keys, extra, true );
	},

	_toggleClass: function( element, keys, extra, add ) {
		add = ( typeof add === "boolean" ) ? add : extra;
		var shift = ( typeof element === "string" || element === null ),
			options = {
				extra: shift ? keys : extra,
				keys: shift ? element : keys,
				element: shift ? this.element : element,
				add: add
			};
		options.element.toggleClass( this._classes( options ), add );
		return this;
	},

	_on: function( suppressDisabledCheck, element, handlers ) {
		var delegateElement;
		var instance = this;

		// No suppressDisabledCheck flag, shuffle arguments
		if ( typeof suppressDisabledCheck !== "boolean" ) {
			handlers = element;
			element = suppressDisabledCheck;
			suppressDisabledCheck = false;
		}

		// No element argument, shuffle and use this.element
		if ( !handlers ) {
			handlers = element;
			element = this.element;
			delegateElement = this.widget();
		} else {
			element = delegateElement = $( element );
			this.bindings = this.bindings.add( element );
		}

		$.each( handlers, function( event, handler ) {
			function handlerProxy() {

				// Allow widgets to customize the disabled handling
				// - disabled as an array instead of boolean
				// - disabled class as method for disabling individual parts
				if ( !suppressDisabledCheck &&
						( instance.options.disabled === true ||
						$( this ).hasClass( "ui-state-disabled" ) ) ) {
					return;
				}
				return ( typeof handler === "string" ? instance[ handler ] : handler )
					.apply( instance, arguments );
			}

			// Copy the guid so direct unbinding works
			if ( typeof handler !== "string" ) {
				handlerProxy.guid = handler.guid =
					handler.guid || handlerProxy.guid || $.guid++;
			}

			var match = event.match( /^([\w:-]*)\s*(.*)$/ );
			var eventName = match[ 1 ] + instance.eventNamespace;
			var selector = match[ 2 ];

			if ( selector ) {
				delegateElement.on( eventName, selector, handlerProxy );
			} else {
				element.on( eventName, handlerProxy );
			}
		} );
	},

	_off: function( element, eventName ) {
		eventName = ( eventName || "" ).split( " " ).join( this.eventNamespace + " " ) +
			this.eventNamespace;
		element.off( eventName ).off( eventName );

		// Clear the stack to avoid memory leaks (#10056)
		this.bindings = $( this.bindings.not( element ).get() );
		this.focusable = $( this.focusable.not( element ).get() );
		this.hoverable = $( this.hoverable.not( element ).get() );
	},

	_delay: function( handler, delay ) {
		function handlerProxy() {
			return ( typeof handler === "string" ? instance[ handler ] : handler )
				.apply( instance, arguments );
		}
		var instance = this;
		return setTimeout( handlerProxy, delay || 0 );
	},

	_hoverable: function( element ) {
		this.hoverable = this.hoverable.add( element );
		this._on( element, {
			mouseenter: function( event ) {
				this._addClass( $( event.currentTarget ), null, "ui-state-hover" );
			},
			mouseleave: function( event ) {
				this._removeClass( $( event.currentTarget ), null, "ui-state-hover" );
			}
		} );
	},

	_focusable: function( element ) {
		this.focusable = this.focusable.add( element );
		this._on( element, {
			focusin: function( event ) {
				this._addClass( $( event.currentTarget ), null, "ui-state-focus" );
			},
			focusout: function( event ) {
				this._removeClass( $( event.currentTarget ), null, "ui-state-focus" );
			}
		} );
	},

	_trigger: function( type, event, data ) {
		var prop, orig;
		var callback = this.options[ type ];

		data = data || {};
		event = $.Event( event );
		event.type = ( type === this.widgetEventPrefix ?
			type :
			this.widgetEventPrefix + type ).toLowerCase();

		// The original event may come from any element
		// so we need to reset the target on the new event
		event.target = this.element[ 0 ];

		// Copy original event properties over to the new event
		orig = event.originalEvent;
		if ( orig ) {
			for ( prop in orig ) {
				if ( !( prop in event ) ) {
					event[ prop ] = orig[ prop ];
				}
			}
		}

		this.element.trigger( event, data );
		return !( $.isFunction( callback ) &&
			callback.apply( this.element[ 0 ], [ event ].concat( data ) ) === false ||
			event.isDefaultPrevented() );
	}
};

$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
	$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
		if ( typeof options === "string" ) {
			options = { effect: options };
		}

		var hasOptions;
		var effectName = !options ?
			method :
			options === true || typeof options === "number" ?
				defaultEffect :
				options.effect || defaultEffect;

		options = options || {};
		if ( typeof options === "number" ) {
			options = { duration: options };
		}

		hasOptions = !$.isEmptyObject( options );
		options.complete = callback;

		if ( options.delay ) {
			element.delay( options.delay );
		}

		if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
			element[ method ]( options );
		} else if ( effectName !== method && element[ effectName ] ) {
			element[ effectName ]( options.duration, options.easing, callback );
		} else {
			element.queue( function( next ) {
				$( this )[ method ]();
				if ( callback ) {
					callback.call( element[ 0 ] );
				}
				next();
			} );
		}
	};
} );

return $.widget;

} ) );







/*!
 * jQuery UI Menu 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Menu
//>>group: Widgets
//>>description: Creates nestable menus.
//>>docs: http://api.jqueryui.com/menu/
//>>demos: http://jqueryui.com/menu/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/menu.css
//>>css.theme: ../../themes/base/theme.css

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [
			"jquery",
			"../keycode",
			"../position",
			"../safe-active-element",
			"../unique-id",
			"../version",
			"../widget"
		], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
}( function( $ ) {

return $.widget( "ui.menu", {
	version: "1.12.1",
	defaultElement: "<ul>",
	delay: 300,
	options: {
		icons: {
			submenu: "ui-icon-caret-1-e"
		},
		items: "> *",
		menus: "ul",
		position: {
			my: "left top",
			at: "right top"
		},
		role: "menu",

		// Callbacks
		blur: null,
		focus: null,
		select: null
	},

	_create: function() {
		this.activeMenu = this.element;

		// Flag used to prevent firing of the click handler
		// as the event bubbles up through nested menus
		this.mouseHandled = false;
		this.element
			.uniqueId()
			.attr( {
				role: this.options.role,
				tabIndex: 0
			} );

		this._addClass( "ui-menu", "ui-widget ui-widget-content" );
		this._on( {

			// Prevent focus from sticking to links inside menu after clicking
			// them (focus should always stay on UL during navigation).
			"mousedown .ui-menu-item": function( event ) {
				event.preventDefault();
			},
			"click .ui-menu-item": function( event ) {
				var target = $( event.target );
				var active = $( $.ui.safeActiveElement( this.document[ 0 ] ) );
				if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
					this.select( event );

					// Only set the mouseHandled flag if the event will bubble, see #9469.
					if ( !event.isPropagationStopped() ) {
						this.mouseHandled = true;
					}

					// Open submenu on click
					if ( target.has( ".ui-menu" ).length ) {
						this.expand( event );
					} else if ( !this.element.is( ":focus" ) &&
							active.closest( ".ui-menu" ).length ) {

						// Redirect focus to the menu
						this.element.trigger( "focus", [ true ] );

						// If the active item is on the top level, let it stay active.
						// Otherwise, blur the active item since it is no longer visible.
						if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
							clearTimeout( this.timer );
						}
					}
				}
			},
			"mouseenter .ui-menu-item": function( event ) {

				// Ignore mouse events while typeahead is active, see #10458.
				// Prevents focusing the wrong item when typeahead causes a scroll while the mouse
				// is over an item in the menu
				if ( this.previousFilter ) {
					return;
				}

				var actualTarget = $( event.target ).closest( ".ui-menu-item" ),
					target = $( event.currentTarget );

				// Ignore bubbled events on parent items, see #11641
				if ( actualTarget[ 0 ] !== target[ 0 ] ) {
					return;
				}

				// Remove ui-state-active class from siblings of the newly focused menu item
				// to avoid a jump caused by adjacent elements both having a class with a border
				this._removeClass( target.siblings().children( ".ui-state-active" ),
					null, "ui-state-active" );
				this.focus( event, target );
			},
			mouseleave: "collapseAll",
			"mouseleave .ui-menu": "collapseAll",
			focus: function( event, keepActiveItem ) {

				// If there's already an active item, keep it active
				// If not, activate the first item
				var item = this.active || this.element.find( this.options.items ).eq( 0 );

				if ( !keepActiveItem ) {
					this.focus( event, item );
				}
			},
			blur: function( event ) {
				this._delay( function() {
					var notContained = !$.contains(
						this.element[ 0 ],
						$.ui.safeActiveElement( this.document[ 0 ] )
					);
					if ( notContained ) {
						this.collapseAll( event );
					}
				} );
			},
			keydown: "_keydown"
		} );

		this.refresh();

		// Clicks outside of a menu collapse any open menus
		this._on( this.document, {
			click: function( event ) {
				if ( this._closeOnDocumentClick( event ) ) {
					this.collapseAll( event );
				}

				// Reset the mouseHandled flag
				this.mouseHandled = false;
			}
		} );
	},

	_destroy: function() {
		var items = this.element.find( ".ui-menu-item" )
				.removeAttr( "role aria-disabled" ),
			submenus = items.children( ".ui-menu-item-wrapper" )
				.removeUniqueId()
				.removeAttr( "tabIndex role aria-haspopup" );

		// Destroy (sub)menus
		this.element
			.removeAttr( "aria-activedescendant" )
			.find( ".ui-menu" ).addBack()
				.removeAttr( "role aria-labelledby aria-expanded aria-hidden aria-disabled " +
					"tabIndex" )
				.removeUniqueId()
				.show();

		submenus.children().each( function() {
			var elem = $( this );
			if ( elem.data( "ui-menu-submenu-caret" ) ) {
				elem.remove();
			}
		} );
	},

	_keydown: function( event ) {
		var match, prev, character, skip,
			preventDefault = true;

		switch ( event.keyCode ) {
		case $.ui.keyCode.PAGE_UP:
			this.previousPage( event );
			break;
		case $.ui.keyCode.PAGE_DOWN:
			this.nextPage( event );
			break;
		case $.ui.keyCode.HOME:
			this._move( "first", "first", event );
			break;
		case $.ui.keyCode.END:
			this._move( "last", "last", event );
			break;
		case $.ui.keyCode.UP:
			this.previous( event );
			break;
		case $.ui.keyCode.DOWN:
			this.next( event );
			break;
		case $.ui.keyCode.LEFT:
			this.collapse( event );
			break;
		case $.ui.keyCode.RIGHT:
			if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
				this.expand( event );
			}
			break;
		case $.ui.keyCode.ENTER:
		case $.ui.keyCode.SPACE:
			this._activate( event );
			break;
		case $.ui.keyCode.ESCAPE:
			this.collapse( event );
			break;
		default:
			preventDefault = false;
			prev = this.previousFilter || "";
			skip = false;

			// Support number pad values
			character = event.keyCode >= 96 && event.keyCode <= 105 ?
				( event.keyCode - 96 ).toString() : String.fromCharCode( event.keyCode );

			clearTimeout( this.filterTimer );

			if ( character === prev ) {
				skip = true;
			} else {
				character = prev + character;
			}

			match = this._filterMenuItems( character );
			match = skip && match.index( this.active.next() ) !== -1 ?
				this.active.nextAll( ".ui-menu-item" ) :
				match;

			// If no matches on the current filter, reset to the last character pressed
			// to move down the menu to the first item that starts with that character
			if ( !match.length ) {
				character = String.fromCharCode( event.keyCode );
				match = this._filterMenuItems( character );
			}

			if ( match.length ) {
				this.focus( event, match );
				this.previousFilter = character;
				this.filterTimer = this._delay( function() {
					delete this.previousFilter;
				}, 1000 );
			} else {
				delete this.previousFilter;
			}
		}

		if ( preventDefault ) {
			event.preventDefault();
		}
	},

	_activate: function( event ) {
		if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
			if ( this.active.children( "[aria-haspopup='true']" ).length ) {
				this.expand( event );
			} else {
				this.select( event );
			}
		}
	},

	refresh: function() {
		var menus, items, newSubmenus, newItems, newWrappers,
			that = this,
			icon = this.options.icons.submenu,
			submenus = this.element.find( this.options.menus );

		this._toggleClass( "ui-menu-icons", null, !!this.element.find( ".ui-icon" ).length );

		// Initialize nested menus
		newSubmenus = submenus.filter( ":not(.ui-menu)" )
			.hide()
			.attr( {
				role: this.options.role,
				"aria-hidden": "true",
				"aria-expanded": "false"
			} )
			.each( function() {
				var menu = $( this ),
					item = menu.prev(),
					submenuCaret = $( "<span>" ).data( "ui-menu-submenu-caret", true );

				that._addClass( submenuCaret, "ui-menu-icon", "ui-icon " + icon );
				item
					.attr( "aria-haspopup", "true" )
					.prepend( submenuCaret );
				menu.attr( "aria-labelledby", item.attr( "id" ) );
			} );

		this._addClass( newSubmenus, "ui-menu", "ui-widget ui-widget-content ui-front" );

		menus = submenus.add( this.element );
		items = menus.find( this.options.items );

		// Initialize menu-items containing spaces and/or dashes only as dividers
		items.not( ".ui-menu-item" ).each( function() {
			var item = $( this );
			if ( that._isDivider( item ) ) {
				that._addClass( item, "ui-menu-divider", "ui-widget-content" );
			}
		} );

		// Don't refresh list items that are already adapted
		newItems = items.not( ".ui-menu-item, .ui-menu-divider" );
		newWrappers = newItems.children()
			.not( ".ui-menu" )
				.uniqueId()
				.attr( {
					tabIndex: -1,
					role: this._itemRole()
				} );
		this._addClass( newItems, "ui-menu-item" )
			._addClass( newWrappers, "ui-menu-item-wrapper" );

		// Add aria-disabled attribute to any disabled menu item
		items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );

		// If the active item has been removed, blur the menu
		if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
			this.blur();
		}
	},

	_itemRole: function() {
		return {
			menu: "menuitem",
			listbox: "option"
		}[ this.options.role ];
	},

	_setOption: function( key, value ) {
		if ( key === "icons" ) {
			var icons = this.element.find( ".ui-menu-icon" );
			this._removeClass( icons, null, this.options.icons.submenu )
				._addClass( icons, null, value.submenu );
		}
		this._super( key, value );
	},

	_setOptionDisabled: function( value ) {
		this._super( value );

		this.element.attr( "aria-disabled", String( value ) );
		this._toggleClass( null, "ui-state-disabled", !!value );
	},

	focus: function( event, item ) {
		var nested, focused, activeParent;
		this.blur( event, event && event.type === "focus" );

		this._scrollIntoView( item );

		this.active = item.first();

		focused = this.active.children( ".ui-menu-item-wrapper" );
		this._addClass( focused, null, "ui-state-active" );

		// Only update aria-activedescendant if there's a role
		// otherwise we assume focus is managed elsewhere
		if ( this.options.role ) {
			this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
		}

		// Highlight active parent menu item, if any
		activeParent = this.active
			.parent()
				.closest( ".ui-menu-item" )
					.children( ".ui-menu-item-wrapper" );
		this._addClass( activeParent, null, "ui-state-active" );

		if ( event && event.type === "keydown" ) {
			this._close();
		} else {
			this.timer = this._delay( function() {
				this._close();
			}, this.delay );
		}

		nested = item.children( ".ui-menu" );
		if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
			this._startOpening( nested );
		}
		this.activeMenu = item.parent();

		this._trigger( "focus", event, { item: item } );
	},

	_scrollIntoView: function( item ) {
		var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
		if ( this._hasScroll() ) {
			borderTop = parseFloat( $.css( this.activeMenu[ 0 ], "borderTopWidth" ) ) || 0;
			paddingTop = parseFloat( $.css( this.activeMenu[ 0 ], "paddingTop" ) ) || 0;
			offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
			scroll = this.activeMenu.scrollTop();
			elementHeight = this.activeMenu.height();
			itemHeight = item.outerHeight();

			if ( offset < 0 ) {
				this.activeMenu.scrollTop( scroll + offset );
			} else if ( offset + itemHeight > elementHeight ) {
				this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
			}
		}
	},

	blur: function( event, fromFocus ) {
		if ( !fromFocus ) {
			clearTimeout( this.timer );
		}

		if ( !this.active ) {
			return;
		}

		this._removeClass( this.active.children( ".ui-menu-item-wrapper" ),
			null, "ui-state-active" );

		this._trigger( "blur", event, { item: this.active } );
		this.active = null;
	},

	_startOpening: function( submenu ) {
		clearTimeout( this.timer );

		// Don't open if already open fixes a Firefox bug that caused a .5 pixel
		// shift in the submenu position when mousing over the caret icon
		if ( submenu.attr( "aria-hidden" ) !== "true" ) {
			return;
		}

		this.timer = this._delay( function() {
			this._close();
			this._open( submenu );
		}, this.delay );
	},

	_open: function( submenu ) {
		var position = $.extend( {
			of: this.active
		}, this.options.position );

		clearTimeout( this.timer );
		this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
			.hide()
			.attr( "aria-hidden", "true" );

		submenu
			.show()
			.removeAttr( "aria-hidden" )
			.attr( "aria-expanded", "true" )
			.position( position );
	},

	collapseAll: function( event, all ) {
		clearTimeout( this.timer );
		this.timer = this._delay( function() {

			// If we were passed an event, look for the submenu that contains the event
			var currentMenu = all ? this.element :
				$( event && event.target ).closest( this.element.find( ".ui-menu" ) );

			// If we found no valid submenu ancestor, use the main menu to close all
			// sub menus anyway
			if ( !currentMenu.length ) {
				currentMenu = this.element;
			}

			this._close( currentMenu );

			this.blur( event );

			// Work around active item staying active after menu is blurred
			this._removeClass( currentMenu.find( ".ui-state-active" ), null, "ui-state-active" );

			this.activeMenu = currentMenu;
		}, this.delay );
	},

	// With no arguments, closes the currently active menu - if nothing is active
	// it closes all menus.  If passed an argument, it will search for menus BELOW
	_close: function( startMenu ) {
		if ( !startMenu ) {
			startMenu = this.active ? this.active.parent() : this.element;
		}

		startMenu.find( ".ui-menu" )
			.hide()
			.attr( "aria-hidden", "true" )
			.attr( "aria-expanded", "false" );
	},

	_closeOnDocumentClick: function( event ) {
		return !$( event.target ).closest( ".ui-menu" ).length;
	},

	_isDivider: function( item ) {

		// Match hyphen, em dash, en dash
		return !/[^\-\u2014\u2013\s]/.test( item.text() );
	},

	collapse: function( event ) {
		var newItem = this.active &&
			this.active.parent().closest( ".ui-menu-item", this.element );
		if ( newItem && newItem.length ) {
			this._close();
			this.focus( event, newItem );
		}
	},

	expand: function( event ) {
		var newItem = this.active &&
			this.active
				.children( ".ui-menu " )
					.find( this.options.items )
						.first();

		if ( newItem && newItem.length ) {
			this._open( newItem.parent() );

			// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
			this._delay( function() {
				this.focus( event, newItem );
			} );
		}
	},

	next: function( event ) {
		this._move( "next", "first", event );
	},

	previous: function( event ) {
		this._move( "prev", "last", event );
	},

	isFirstItem: function() {
		return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
	},

	isLastItem: function() {
		return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
	},

	_move: function( direction, filter, event ) {
		var next;
		if ( this.active ) {
			if ( direction === "first" || direction === "last" ) {
				next = this.active
					[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
					.eq( -1 );
			} else {
				next = this.active
					[ direction + "All" ]( ".ui-menu-item" )
					.eq( 0 );
			}
		}
		if ( !next || !next.length || !this.active ) {
			next = this.activeMenu.find( this.options.items )[ filter ]();
		}

		this.focus( event, next );
	},

	nextPage: function( event ) {
		var item, base, height;

		if ( !this.active ) {
			this.next( event );
			return;
		}
		if ( this.isLastItem() ) {
			return;
		}
		if ( this._hasScroll() ) {
			base = this.active.offset().top;
			height = this.element.height();
			this.active.nextAll( ".ui-menu-item" ).each( function() {
				item = $( this );
				return item.offset().top - base - height < 0;
			} );

			this.focus( event, item );
		} else {
			this.focus( event, this.activeMenu.find( this.options.items )
				[ !this.active ? "first" : "last" ]() );
		}
	},

	previousPage: function( event ) {
		var item, base, height;
		if ( !this.active ) {
			this.next( event );
			return;
		}
		if ( this.isFirstItem() ) {
			return;
		}
		if ( this._hasScroll() ) {
			base = this.active.offset().top;
			height = this.element.height();
			this.active.prevAll( ".ui-menu-item" ).each( function() {
				item = $( this );
				return item.offset().top - base + height > 0;
			} );

			this.focus( event, item );
		} else {
			this.focus( event, this.activeMenu.find( this.options.items ).first() );
		}
	},

	_hasScroll: function() {
		return this.element.outerHeight() < this.element.prop( "scrollHeight" );
	},

	select: function( event ) {

		// TODO: It should never be possible to not have an active item at this
		// point, but the tests don't trigger mouseenter before click.
		this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
		var ui = { item: this.active };
		if ( !this.active.has( ".ui-menu" ).length ) {
			this.collapseAll( event, true );
		}
		this._trigger( "select", event, ui );
	},

	_filterMenuItems: function( character ) {
		var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ),
			regex = new RegExp( "^" + escapedCharacter, "i" );

		return this.activeMenu
			.find( this.options.items )

				// Only match on items, not dividers or other content (#10571)
				.filter( ".ui-menu-item" )
					.filter( function() {
						return regex.test(
							$.trim( $( this ).children( ".ui-menu-item-wrapper" ).text() ) );
					} );
	}
} );

} ) );







/*!
 * jQuery UI Autocomplete 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Autocomplete
//>>group: Widgets
//>>description: Lists suggested words as the user is typing.
//>>docs: http://api.jqueryui.com/autocomplete/
//>>demos: http://jqueryui.com/autocomplete/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/autocomplete.css
//>>css.theme: ../../themes/base/theme.css

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [
			"jquery",
			"./menu",
			"../keycode",
			"../position",
			"../safe-active-element",
			"../version",
			"../widget"
		], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
}( function( $ ) {

$.widget( "ui.autocomplete", {
	version: "1.12.1",
	defaultElement: "<input>",
	options: {
		appendTo: null,
		autoFocus: false,
		delay: 300,
		minLength: 1,
		position: {
			my: "left top",
			at: "left bottom",
			collision: "none"
		},
		source: null,

		// Callbacks
		change: null,
		close: null,
		focus: null,
		open: null,
		response: null,
		search: null,
		select: null
	},

	requestIndex: 0,
	pending: 0,

	_create: function() {

		// Some browsers only repeat keydown events, not keypress events,
		// so we use the suppressKeyPress flag to determine if we've already
		// handled the keydown event. #7269
		// Unfortunately the code for & in keypress is the same as the up arrow,
		// so we use the suppressKeyPressRepeat flag to avoid handling keypress
		// events when we know the keydown event was used to modify the
		// search term. #7799
		var suppressKeyPress, suppressKeyPressRepeat, suppressInput,
			nodeName = this.element[ 0 ].nodeName.toLowerCase(),
			isTextarea = nodeName === "textarea",
			isInput = nodeName === "input";

		// Textareas are always multi-line
		// Inputs are always single-line, even if inside a contentEditable element
		// IE also treats inputs as contentEditable
		// All other element types are determined by whether or not they're contentEditable
		this.isMultiLine = isTextarea || !isInput && this._isContentEditable( this.element );

		this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ];
		this.isNewMenu = true;

		this._addClass( "ui-autocomplete-input" );
		this.element.attr( "autocomplete", "off" );

		this._on( this.element, {
			keydown: function( event ) {
				if ( this.element.prop( "readOnly" ) ) {
					suppressKeyPress = true;
					suppressInput = true;
					suppressKeyPressRepeat = true;
					return;
				}

				suppressKeyPress = false;
				suppressInput = false;
				suppressKeyPressRepeat = false;
				var keyCode = $.ui.keyCode;
				switch ( event.keyCode ) {
				case keyCode.PAGE_UP:
					suppressKeyPress = true;
					this._move( "previousPage", event );
					break;
				case keyCode.PAGE_DOWN:
					suppressKeyPress = true;
					this._move( "nextPage", event );
					break;
				case keyCode.UP:
					suppressKeyPress = true;
					this._keyEvent( "previous", event );
					break;
				case keyCode.DOWN:
					suppressKeyPress = true;
					this._keyEvent( "next", event );
					break;
				case keyCode.ENTER:

					// when menu is open and has focus
					if ( this.menu.active ) {

						// #6055 - Opera still allows the keypress to occur
						// which causes forms to submit
						suppressKeyPress = true;
						event.preventDefault();
						this.menu.select( event );
					}
					break;
				case keyCode.TAB:
					if ( this.menu.active ) {
						this.menu.select( event );
					}
					break;
				case keyCode.ESCAPE:
					if ( this.menu.element.is( ":visible" ) ) {
						if ( !this.isMultiLine ) {
							this._value( this.term );
						}
						this.close( event );

						// Different browsers have different default behavior for escape
						// Single press can mean undo or clear
						// Double press in IE means clear the whole form
						event.preventDefault();
					}
					break;
				default:
					suppressKeyPressRepeat = true;

					// search timeout should be triggered before the input value is changed
					this._searchTimeout( event );
					break;
				}
			},
			keypress: function( event ) {
				if ( suppressKeyPress ) {
					suppressKeyPress = false;
					if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
						event.preventDefault();
					}
					return;
				}
				if ( suppressKeyPressRepeat ) {
					return;
				}

				// Replicate some key handlers to allow them to repeat in Firefox and Opera
				var keyCode = $.ui.keyCode;
				switch ( event.keyCode ) {
				case keyCode.PAGE_UP:
					this._move( "previousPage", event );
					break;
				case keyCode.PAGE_DOWN:
					this._move( "nextPage", event );
					break;
				case keyCode.UP:
					this._keyEvent( "previous", event );
					break;
				case keyCode.DOWN:
					this._keyEvent( "next", event );
					break;
				}
			},
			input: function( event ) {
				if ( suppressInput ) {
					suppressInput = false;
					event.preventDefault();
					return;
				}
				this._searchTimeout( event );
			},
			focus: function() {
				this.selectedItem = null;
				this.previous = this._value();
			},
			blur: function( event ) {
				if ( this.cancelBlur ) {
					delete this.cancelBlur;
					return;
				}

				clearTimeout( this.searching );
				this.close( event );
				this._change( event );
			}
		} );

		this._initSource();
		this.menu = $( "<ul>" )
			.appendTo( this._appendTo() )
			.menu( {

				// disable ARIA support, the live region takes care of that
				role: null
			} )
			.hide()
			.menu( "instance" );

		this._addClass( this.menu.element, "ui-autocomplete", "ui-front" );
		this._on( this.menu.element, {
			mousedown: function( event ) {

				// prevent moving focus out of the text field
				event.preventDefault();

				// IE doesn't prevent moving focus even with event.preventDefault()
				// so we set a flag to know when we should ignore the blur event
				this.cancelBlur = true;
				this._delay( function() {
					delete this.cancelBlur;

					// Support: IE 8 only
					// Right clicking a menu item or selecting text from the menu items will
					// result in focus moving out of the input. However, we've already received
					// and ignored the blur event because of the cancelBlur flag set above. So
					// we restore focus to ensure that the menu closes properly based on the user's
					// next actions.
					if ( this.element[ 0 ] !== $.ui.safeActiveElement( this.document[ 0 ] ) ) {
						this.element.trigger( "focus" );
					}
				} );
			},
			menufocus: function( event, ui ) {
				var label, item;

				// support: Firefox
				// Prevent accidental activation of menu items in Firefox (#7024 #9118)
				if ( this.isNewMenu ) {
					this.isNewMenu = false;
					if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) {
						this.menu.blur();

						this.document.one( "mousemove", function() {
							$( event.target ).trigger( event.originalEvent );
						} );

						return;
					}
				}

				item = ui.item.data( "ui-autocomplete-item" );
				if ( false !== this._trigger( "focus", event, { item: item } ) ) {

					// use value to match what will end up in the input, if it was a key event
					if ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) {
						this._value( item.value );
					}
				}

				// Announce the value in the liveRegion
				label = ui.item.attr( "aria-label" ) || item.value;
				if ( label && $.trim( label ).length ) {
					this.liveRegion.children().hide();
					$( "<div>" ).text( label ).appendTo( this.liveRegion );
				}
			},
			menuselect: function( event, ui ) {
				var item = ui.item.data( "ui-autocomplete-item" ),
					previous = this.previous;

				// Only trigger when focus was lost (click on menu)
				if ( this.element[ 0 ] !== $.ui.safeActiveElement( this.document[ 0 ] ) ) {
					this.element.trigger( "focus" );
					this.previous = previous;

					// #6109 - IE triggers two focus events and the second
					// is asynchronous, so we need to reset the previous
					// term synchronously and asynchronously :-(
					this._delay( function() {
						this.previous = previous;
						this.selectedItem = item;
					} );
				}

				if ( false !== this._trigger( "select", event, { item: item } ) ) {
					this._value( item.value );
				}

				// reset the term after the select event
				// this allows custom select handling to work properly
				this.term = this._value();

				this.close( event );
				this.selectedItem = item;
			}
		} );

		this.liveRegion = $( "<div>", {
			role: "status",
			"aria-live": "assertive",
			"aria-relevant": "additions"
		} )
			.appendTo( this.document[ 0 ].body );

		this._addClass( this.liveRegion, null, "ui-helper-hidden-accessible" );

		// Turning off autocomplete prevents the browser from remembering the
		// value when navigating through history, so we re-enable autocomplete
		// if the page is unloaded before the widget is destroyed. #7790
		this._on( this.window, {
			beforeunload: function() {
				this.element.removeAttr( "autocomplete" );
			}
		} );
	},

	_destroy: function() {
		clearTimeout( this.searching );
		this.element.removeAttr( "autocomplete" );
		this.menu.element.remove();
		this.liveRegion.remove();
	},

	_setOption: function( key, value ) {
		this._super( key, value );
		if ( key === "source" ) {
			this._initSource();
		}
		if ( key === "appendTo" ) {
			this.menu.element.appendTo( this._appendTo() );
		}
		if ( key === "disabled" && value && this.xhr ) {
			this.xhr.abort();
		}
	},

	_isEventTargetInWidget: function( event ) {
		var menuElement = this.menu.element[ 0 ];

		return event.target === this.element[ 0 ] ||
			event.target === menuElement ||
			$.contains( menuElement, event.target );
	},

	_closeOnClickOutside: function( event ) {
		if ( !this._isEventTargetInWidget( event ) ) {
			this.close();
		}
	},

	_appendTo: function() {
		var element = this.options.appendTo;

		if ( element ) {
			element = element.jquery || element.nodeType ?
				$( element ) :
				this.document.find( element ).eq( 0 );
		}

		if ( !element || !element[ 0 ] ) {
			element = this.element.closest( ".ui-front, dialog" );
		}

		if ( !element.length ) {
			element = this.document[ 0 ].body;
		}

		return element;
	},

	_initSource: function() {
		var array, url,
			that = this;
		if ( $.isArray( this.options.source ) ) {
			array = this.options.source;
			this.source = function( request, response ) {
				response( $.ui.autocomplete.filter( array, request.term ) );
			};
		} else if ( typeof this.options.source === "string" ) {
			url = this.options.source;
			this.source = function( request, response ) {
				if ( that.xhr ) {
					that.xhr.abort();
				}
				that.xhr = $.ajax( {
					url: url,
					data: request,
					dataType: "json",
					success: function( data ) {
						response( data );
					},
					error: function() {
						response( [] );
					}
				} );
			};
		} else {
			this.source = this.options.source;
		}
	},

	_searchTimeout: function( event ) {
		clearTimeout( this.searching );
		this.searching = this._delay( function() {

			// Search if the value has changed, or if the user retypes the same value (see #7434)
			var equalValues = this.term === this._value(),
				menuVisible = this.menu.element.is( ":visible" ),
				modifierKey = event.altKey || event.ctrlKey || event.metaKey || event.shiftKey;

			if ( !equalValues || ( equalValues && !menuVisible && !modifierKey ) ) {
				this.selectedItem = null;
				this.search( null, event );
			}
		}, this.options.delay );
	},

	search: function( value, event ) {
		value = value != null ? value : this._value();

		// Always save the actual value, not the one passed as an argument
		this.term = this._value();

		if ( value.length < this.options.minLength ) {
			return this.close( event );
		}

		if ( this._trigger( "search", event ) === false ) {
			return;
		}

		return this._search( value );
	},

	_search: function( value ) {
		this.pending++;
		this._addClass( "ui-autocomplete-loading" );
		this.cancelSearch = false;

		this.source( { term: value }, this._response() );
	},

	_response: function() {
		var index = ++this.requestIndex;

		return $.proxy( function( content ) {
			if ( index === this.requestIndex ) {
				this.__response( content );
			}

			this.pending--;
			if ( !this.pending ) {
				this._removeClass( "ui-autocomplete-loading" );
			}
		}, this );
	},

	__response: function( content ) {
		if ( content ) {
			content = this._normalize( content );
		}
		this._trigger( "response", null, { content: content } );
		if ( !this.options.disabled && content && content.length && !this.cancelSearch ) {
			this._suggest( content );
			this._trigger( "open" );
		} else {

			// use ._close() instead of .close() so we don't cancel future searches
			this._close();
		}
	},

	close: function( event ) {
		this.cancelSearch = true;
		this._close( event );
	},

	_close: function( event ) {

		// Remove the handler that closes the menu on outside clicks
		this._off( this.document, "mousedown" );

		if ( this.menu.element.is( ":visible" ) ) {
			this.menu.element.hide();
			this.menu.blur();
			this.isNewMenu = true;
			this._trigger( "close", event );
		}
	},

	_change: function( event ) {
		if ( this.previous !== this._value() ) {
			this._trigger( "change", event, { item: this.selectedItem } );
		}
	},

	_normalize: function( items ) {

		// assume all items have the right format when the first item is complete
		if ( items.length && items[ 0 ].label && items[ 0 ].value ) {
			return items;
		}
		return $.map( items, function( item ) {
			if ( typeof item === "string" ) {
				return {
					label: item,
					value: item
				};
			}
			return $.extend( {}, item, {
				label: item.label || item.value,
				value: item.value || item.label
			} );
		} );
	},

	_suggest: function( items ) {
		var ul = this.menu.element.empty();
		this._renderMenu( ul, items );
		this.isNewMenu = true;
		this.menu.refresh();

		// Size and position menu
		ul.show();
		this._resizeMenu();
		ul.position( $.extend( {
			of: this.element
		}, this.options.position ) );

		if ( this.options.autoFocus ) {
			this.menu.next();
		}

		// Listen for interactions outside of the widget (#6642)
		this._on( this.document, {
			mousedown: "_closeOnClickOutside"
		} );
	},

	_resizeMenu: function() {
		var ul = this.menu.element;
		ul.outerWidth( Math.max(

			// Firefox wraps long text (possibly a rounding bug)
			// so we add 1px to avoid the wrapping (#7513)
			ul.width( "" ).outerWidth() + 1,
			this.element.outerWidth()
		) );
	},

	_renderMenu: function( ul, items ) {
		var that = this;
		$.each( items, function( index, item ) {
			that._renderItemData( ul, item );
		} );
	},

	_renderItemData: function( ul, item ) {
		return this._renderItem( ul, item ).data( "ui-autocomplete-item", item );
	},

	_renderItem: function( ul, item ) {
		return $( "<li>" )
			.append( $( "<div>" ).text( item.label ) )
			.appendTo( ul );
	},

	_move: function( direction, event ) {
		if ( !this.menu.element.is( ":visible" ) ) {
			this.search( null, event );
			return;
		}
		if ( this.menu.isFirstItem() && /^previous/.test( direction ) ||
				this.menu.isLastItem() && /^next/.test( direction ) ) {

			if ( !this.isMultiLine ) {
				this._value( this.term );
			}

			this.menu.blur();
			return;
		}
		this.menu[ direction ]( event );
	},

	widget: function() {
		return this.menu.element;
	},

	_value: function() {
		return this.valueMethod.apply( this.element, arguments );
	},

	_keyEvent: function( keyEvent, event ) {
		if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
			this._move( keyEvent, event );

			// Prevents moving cursor to beginning/end of the text field in some browsers
			event.preventDefault();
		}
	},

	// Support: Chrome <=50
	// We should be able to just use this.element.prop( "isContentEditable" )
	// but hidden elements always report false in Chrome.
	// https://code.google.com/p/chromium/issues/detail?id=313082
	_isContentEditable: function( element ) {
		if ( !element.length ) {
			return false;
		}

		var editable = element.prop( "contentEditable" );

		if ( editable === "inherit" ) {
		  return this._isContentEditable( element.parent() );
		}

		return editable === "true";
	}
} );

$.extend( $.ui.autocomplete, {
	escapeRegex: function( value ) {
		return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
	},
	filter: function( array, term ) {
		var matcher = new RegExp( $.ui.autocomplete.escapeRegex( term ), "i" );
		return $.grep( array, function( value ) {
			return matcher.test( value.label || value.value || value );
		} );
	}
} );

// Live region extension, adding a `messages` option
// NOTE: This is an experimental API. We are still investigating
// a full solution for string manipulation and internationalization.
$.widget( "ui.autocomplete", $.ui.autocomplete, {
	options: {
		messages: {
			noResults: "No search results.",
			results: function( amount ) {
				return amount + ( amount > 1 ? " results are" : " result is" ) +
					" available, use up and down arrow keys to navigate.";
			}
		}
	},

	__response: function( content ) {
		var message;
		this._superApply( arguments );
		if ( this.options.disabled || this.cancelSearch ) {
			return;
		}
		if ( content && content.length ) {
			message = this.options.messages.results( content.length );
		} else {
			message = this.options.messages.noResults;
		}
		this.liveRegion.children().hide();
		$( "<div>" ).text( message ).appendTo( this.liveRegion );
	}
} );

return $.ui.autocomplete;

} ) );
/*

	jQuery Tags Input Plugin 1.3.3

	Copyright (c) 2011 XOXCO, Inc

	Documentation for this plugin lives here:
	http://xoxco.com/clickable/jquery-tags-input

	Licensed under the MIT license:
	http://www.opensource.org/licenses/mit-license.php

	ben@xoxco.com

*/


(function($) {

	var delimiter = new Array();
	var tags_callbacks = new Array();
	$.fn.doAutosize = function(o){
	    var minWidth = $(this).data('minwidth'),
	        maxWidth = $(this).data('maxwidth'),
	        val = '',
	        input = $(this),
	        testSubject = $('#'+$(this).data('tester_id'));

	    if (val === (val = input.val())) {return;}

	    // Enter new content into testSubject
	    var escaped = val.replace(/&/g, '&amp;').replace(/\s/g,' ').replace(/</g, '&lt;').replace(/>/g, '&gt;');
	    testSubject.html(escaped);
	    // Calculate new width + whether to change
	    var testerWidth = testSubject.width(),
	        newWidth = (testerWidth + o.comfortZone) >= minWidth ? testerWidth + o.comfortZone : minWidth,
	        currentWidth = input.width(),
	        isValidWidthChange = (newWidth < currentWidth && newWidth >= minWidth)
	                             || (newWidth > minWidth && newWidth < maxWidth);

	    // Animate width
	    if (isValidWidthChange) {
	        input.width(newWidth);
	    }


  };
  $.fn.resetAutosize = function(options){
    // alert(JSON.stringify(options));
    var minWidth =  $(this).data('minwidth') || options.minInputWidth || $(this).width(),
        maxWidth = $(this).data('maxwidth') || options.maxInputWidth || ($(this).closest('.tagsinput').width() - options.inputPadding),
        val = '',
        input = $(this),
        testSubject = $('<tester/>').css({
            position: 'absolute',
            top: -9999,
            left: -9999,
            width: 'auto',
            fontSize: input.css('fontSize'),
            fontFamily: input.css('fontFamily'),
            fontWeight: input.css('fontWeight'),
            letterSpacing: input.css('letterSpacing'),
            whiteSpace: 'nowrap'
        }),
        testerId = $(this).attr('id')+'_autosize_tester';
    if(! $('#'+testerId).length > 0){
      testSubject.attr('id', testerId);
      testSubject.appendTo('body');
    }

    input.data('minwidth', minWidth);
    input.data('maxwidth', maxWidth);
    input.data('tester_id', testerId);
    input.css('width', minWidth);
  };

	$.fn.addTag = function(value,options) {
			options = jQuery.extend({focus:false,callback:true},options);
			this.each(function() {
				var id = $(this).attr('id');

				var tagslist = $(this).val().split(delimiter[id]);
				if (tagslist[0] == '') {
					tagslist = new Array();
				}

				value = jQuery.trim(value);

				if (options.unique) {
					var skipTag = $(this).tagExist(value);
					if(skipTag == true) {
					    //Marks fake input as not_valid to let styling it
    				    $('#'+id+'_tag').addClass('not_valid');
    				}
				} else {
					var skipTag = false;
				}

				if (value !='' && skipTag != true) {
                    $('<span>').addClass('tag').append(
                        $('<span>').text(value).append('&nbsp;&nbsp;'),
                        $('<a>', {
                            href  : '#',
                            title : 'Removing tag',
                            text  : 'x'
                        }).click(function () {
                            return $('#' + id).removeTag(escape(value));
                        })
                    ).insertBefore('#' + id + '_addTag');

					tagslist.push(value);

					$('#'+id+'_tag').val('');
					if (options.focus) {
						$('#'+id+'_tag').focus();
					} else {
						$('#'+id+'_tag').blur();
					}

					$.fn.tagsInput.updateTagsField(this,tagslist);

					if (options.callback && tags_callbacks[id] && tags_callbacks[id]['onAddTag']) {
						var f = tags_callbacks[id]['onAddTag'];
						f.call(this, value);
					}
					if(tags_callbacks[id] && tags_callbacks[id]['onChange'])
					{
						var i = tagslist.length;
						var f = tags_callbacks[id]['onChange'];
						f.call(this, $(this), tagslist[i-1]);
					}
				}

			});

			return false;
		};

	$.fn.removeTag = function(value) {
			value = unescape(value);
			this.each(function() {
				var id = $(this).attr('id');

				var old = $(this).val().split(delimiter[id]);

				$('#'+id+'_tagsinput .tag').remove();
				str = '';
				for (i=0; i< old.length; i++) {
					if (old[i]!=value) {
						str = str + delimiter[id] +old[i];
					}
				}

				$.fn.tagsInput.importTags(this,str);

				if (tags_callbacks[id] && tags_callbacks[id]['onRemoveTag']) {
					var f = tags_callbacks[id]['onRemoveTag'];
					f.call(this, value);
				}
			});

			return false;
		};

	$.fn.tagExist = function(val) {
		var id = $(this).attr('id');
		var tagslist = $(this).val().split(delimiter[id]);
		return (jQuery.inArray(val, tagslist) >= 0); //true when tag exists, false when not
	};

   // clear all existing tags and import new ones from a string
   $.fn.importTags = function(str) {
      var id = $(this).attr('id');
      $('#'+id+'_tagsinput .tag').remove();
      $.fn.tagsInput.importTags(this,str);
   }

	$.fn.tagsInput = function(options) {
    var settings = jQuery.extend({
      interactive:true,
      defaultText:'add a tag',
      minChars:0,
      width:'300px',
      height:'100px',
      autocomplete: {selectFirst: false },
      hide:true,
      delimiter: ',',
      unique:true,
      removeWithBackspace:true,
      placeholderColor:'#666666',
      autosize: true,
      comfortZone: 20,
      inputPadding: 6*2
    },options);

    	var uniqueIdCounter = 0;

		this.each(function() {
         // If we have already initialized the field, do not do it again
         if (typeof $(this).attr('data-tagsinput-init') !== 'undefined') {
            return;
         }

         // Mark the field as having been initialized
         $(this).attr('data-tagsinput-init', true);

			if (settings.hide) {
				$(this).hide();
			}
			var id = $(this).attr('id');
			if (!id || delimiter[$(this).attr('id')]) {
				id = $(this).attr('id', 'tags' + new Date().getTime() + (uniqueIdCounter++)).attr('id');
			}

			var data = jQuery.extend({
				pid:id,
				real_input: '#'+id,
				holder: '#'+id+'_tagsinput',
				input_wrapper: '#'+id+'_addTag',
				fake_input: '#'+id+'_tag'
			},settings);

			delimiter[id] = data.delimiter;

			if (settings.onAddTag || settings.onRemoveTag || settings.onChange) {
				tags_callbacks[id] = new Array();
				tags_callbacks[id]['onAddTag'] = settings.onAddTag;
				tags_callbacks[id]['onRemoveTag'] = settings.onRemoveTag;
				tags_callbacks[id]['onChange'] = settings.onChange;
			}

			var markup = '<div id="'+id+'_tagsinput" class="tagsinput"><div id="'+id+'_addTag">';

			if (settings.interactive) {
				markup = markup + '<input id="'+id+'_tag" value="" data-default="'+settings.defaultText+'" />';
			}

			markup = markup + '</div><div class="tags_clear"></div></div>';

			$(markup).insertAfter(this);

			$(data.holder).css('width',settings.width);
			$(data.holder).css('min-height',settings.height);
			$(data.holder).css('height',settings.height);

			if ($(data.real_input).val()!='') {
				$.fn.tagsInput.importTags($(data.real_input),$(data.real_input).val());
			}
			if (settings.interactive) {
				$(data.fake_input).val($(data.fake_input).attr('data-default'));
				$(data.fake_input).css('color',settings.placeholderColor);
		        $(data.fake_input).resetAutosize(settings);

				$(data.holder).bind('click',data,function(event) {
					$(event.data.fake_input).focus();
				});

				$(data.fake_input).bind('focus',data,function(event) {
					if ($(event.data.fake_input).val()==$(event.data.fake_input).attr('data-default')) {
						$(event.data.fake_input).val('');
					}
					$(event.data.fake_input).css('color','#000000');
				});

				if (settings.autocomplete_url != undefined) {
					autocomplete_options = {source: settings.autocomplete_url};
					for (attrname in settings.autocomplete) {
						autocomplete_options[attrname] = settings.autocomplete[attrname];
					}

					if (jQuery.Autocompleter !== undefined) {
						$(data.fake_input).autocomplete(settings.autocomplete_url, settings.autocomplete);
						$(data.fake_input).bind('result',data,function(event,data,formatted) {
							if (data) {
								$('#'+id).addTag(data[0] + "",{focus:true,unique:(settings.unique)});
							}
					  	});
					} else if (jQuery.ui.autocomplete !== undefined) {
						$(data.fake_input).autocomplete(autocomplete_options);
						$(data.fake_input).bind('autocompleteselect',data,function(event,ui) {
							$(event.data.real_input).addTag(ui.item.value,{focus:true,unique:(settings.unique)});
							return false;
						});
					}


				} else {
						// if a user tabs out of the field, create a new tag
						// this is only available if autocomplete is not used.
						$(data.fake_input).bind('blur',data,function(event) {
							var d = $(this).attr('data-default');
							if ($(event.data.fake_input).val()!='' && $(event.data.fake_input).val()!=d) {
								if( (event.data.minChars <= $(event.data.fake_input).val().length) && (!event.data.maxChars || (event.data.maxChars >= $(event.data.fake_input).val().length)) )
									$(event.data.real_input).addTag($(event.data.fake_input).val(),{focus:true,unique:(settings.unique)});
							} else {
								$(event.data.fake_input).val($(event.data.fake_input).attr('data-default'));
								$(event.data.fake_input).css('color',settings.placeholderColor);
							}
							return false;
						});

				}
				// if user types a default delimiter like comma,semicolon and then create a new tag
				$(data.fake_input).bind('keypress',data,function(event) {
					if (_checkDelimiter(event)) {
					    event.preventDefault();
						if( (event.data.minChars <= $(event.data.fake_input).val().length) && (!event.data.maxChars || (event.data.maxChars >= $(event.data.fake_input).val().length)) )
							$(event.data.real_input).addTag($(event.data.fake_input).val(),{focus:true,unique:(settings.unique)});
					  	$(event.data.fake_input).resetAutosize(settings);
						return false;
					} else if (event.data.autosize) {
			            $(event.data.fake_input).doAutosize(settings);

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				});
				//Delete last tag on backspace
				data.removeWithBackspace && $(data.fake_input).bind('keydown', function(event)
				{
					if(event.keyCode == 8 && $(this).val() == '')
					{
						 event.preventDefault();
						 var last_tag = $(this).closest('.tagsinput').find('.tag:last').text();
						 var id = $(this).attr('id').replace(/_tag$/, '');
						 last_tag = last_tag.replace(/[\s]+x$/, '');
						 $('#' + id).removeTag(escape(last_tag));
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					}
				});
				$(data.fake_input).blur();

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				            $(this).removeClass('not_valid');
				        }
				    });
				}
			} // if settings.interactive
		});

		return this;

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		$(obj).val(tagslist.join(delimiter[id]));
	};

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		var tags = val.split(delimiter[id]);
		for (i=0; i<tags.length; i++) {
			$(obj).addTag(tags[i],{focus:false,callback:false});
		}
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		{
			var f = tags_callbacks[id]['onChange'];
			f.call(obj, obj, tags[i]);
		}
	};

   /**
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     * @param event
     * @returns {boolean}
     * @private
     */
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      }

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            if (event.which == delimiter.charCodeAt(0)) {
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            }
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   }
})(jQuery);
/*
Turbolinks 5.0.3
Copyright © 2017 Basecamp, LLC
 */

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r(r){this.delegate=r,this.onScroll=e(this.onScroll,this),this.onScroll=t.throttle(this.onScroll)}return r.prototype.start=function(){return this.started?void 0:(addEventListener("scroll",this.onScroll,!1),this.onScroll(),this.started=!0)},r.prototype.stop=function(){return this.started?(removeEventListener("scroll",this.onScroll,!1),this.started=!1):void 0},r.prototype.scrollToElement=function(t){return t.scrollIntoView()},r.prototype.scrollToPosition=function(t){var e,r;return e=t.x,r=t.y,window.scrollTo(e,r)},r.prototype.onScroll=function(t){return this.updatePosition({x:window.pageXOffset,y:window.pageYOffset})},r.prototype.updatePosition=function(t){var e;return this.position=t,null!=(e=this.delegate)?e.scrollPositionChanged(this.position):void 0},r}()}.call(this),function(){t.SnapshotCache=function(){function e(t){this.size=t,this.keys=[],this.snapshots={}}var r;return e.prototype.has=function(t){var e;return e=r(t),e in this.snapshots},e.prototype.get=function(t){var e;if(this.has(t))return e=this.read(t),this.touch(t),e},e.prototype.put=function(t,e){return this.write(t,e),this.touch(t),e},e.prototype.read=function(t){var e;return e=r(t),this.snapshots[e]},e.prototype.write=function(t,e){var n;return n=r(t),this.snapshots[n]=e},e.prototype.touch=function(t){var e,n;return n=r(t),e=this.keys.indexOf(n),e>-1&&this.keys.splice(e,1),this.keys.unshift(n),this.trim()},e.prototype.trim=function(){var t,e,r,n,o;for(n=this.keys.splice(this.size),o=[],t=0,r=n.length;r>t;t++)e=n[t],o.push(delete this.snapshots[e]);return o},r=function(e){return t.Location.wrap(e).toCacheKey()},e}()}.call(this),function(){var e=function(t,e){return function(){return t.apply(e,arguments)}};t.Visit=function(){function r(r,n,o){this.controller=r,this.action=o,this.performScroll=e(this.performScroll,this),this.identifier=t.uuid(),this.location=t.Location.wrap(n),this.adapter=this.controller.adapter,this.state="initialized",this.timingMetrics={}}var n;return r.prototype.start=function(){return"initialized"===this.state?(this.recordTimingMetric("visitStart"),this.state="started",this.adapter.visitStarted(this)):void 0},r.prototype.cancel=function(){var t;return"started"===this.state?(null!=(t=this.request)&&t.cancel(),this.cancelRender(),this.state="canceled"):void 0},r.prototype.complete=function(){var t;return"started"===this.state?(this.recordTimingMetric("visitEnd"),this.state="completed","function"==typeof(t=this.adapter).visitCompleted&&t.visitCompleted(this),this.controller.visitCompleted(this)):void 0},r.prototype.fail=function(){var t;return"started"===this.state?(this.state="failed","function"==typeof(t=this.adapter).visitFailed?t.visitFailed(this):void 0):void 0},r.prototype.changeHistory=function(){var t,e;return this.historyChanged?void 0:(t=this.location.isEqualTo(this.referrer)?"replace":this.action,e=n(t),this.controller[e](this.location,this.restorationIdentifier),this.historyChanged=!0)},r.prototype.issueRequest=function(){return this.shouldIssueRequest()&&null==this.request?(this.progress=0,this.request=new t.HttpRequest(this,this.location,this.referrer),this.request.send()):void 0},r.prototype.getCachedSnapshot=function(){var t;return!(t=this.controller.getCachedSnapshotForLocation(this.location))||null!=this.location.anchor&&!t.hasAnchor(this.location.anchor)||"restore"!==this.action&&!t.isPreviewable()?void 0:t},r.prototype.hasCachedSnapshot=function(){return null!=this.getCachedSnapshot()},r.prototype.loadCachedSnapshot=function(){var t,e;return(e=this.getCachedSnapshot())?(t=this.shouldIssueRequest(),this.render(function(){var r;return this.cacheSnapshot(),this.controller.render({snapshot:e,isPreview:t},this.performScroll),"function"==typeof(r=this.adapter).visitRendered&&r.visitRendered(this),t?void 0:this.complete()})):void 0},r.prototype.loadResponse=function(){return null!=this.response?this.render(function(){var t,e;return this.cacheSnapshot(),this.request.failed?(this.controller.render({error:this.response},this.performScroll),"function"==typeof(t=this.adapter).visitRendered&&t.visitRendered(this),this.fail()):(this.controller.render({snapshot:this.response},this.performScroll),"function"==typeof(e=this.adapter).visitRendered&&e.visitRendered(this),this.complete())}):void 0},r.prototype.followRedirect=function(){return this.redirectedToLocation&&!this.followedRedirect?(this.location=this.redirectedToLocation,this.controller.replaceHistoryWithLocationAndRestorationIdentifier(this.redirectedToLocation,this.restorationIdentifier),this.followedRedirect=!0):void 0},r.prototype.requestStarted=function(){var t;return this.recordTimingMetric("requestStart"),"function"==typeof(t=this.adapter).visitRequestStarted?t.visitRequestStarted(this):void 0},r.prototype.requestProgressed=function(t){var e;return this.progress=t,"function"==typeof(e=this.adapter).visitRequestProgressed?e.visitRequestProgressed(this):void 0},r.prototype.requestCompletedWithResponse=function(e,r){return this.response=e,null!=r&&(this.redirectedToLocation=t.Location.wrap(r)),this.adapter.visitRequestCompleted(this)},r.prototype.requestFailedWithStatusCode=function(t,e){return this.response=e,this.adapter.visitRequestFailedWithStatusCode(this,t)},r.prototype.requestFinished=function(){var t;return this.recordTimingMetric("requestEnd"),"function"==typeof(t=this.adapter).visitRequestFinished?t.visitRequestFinished(this):void 0},r.prototype.performScroll=function(){return this.scrolled?void 0:("restore"===this.action?this.scrollToRestoredPosition()||this.scrollToTop():this.scrollToAnchor()||this.scrollToTop(),this.scrolled=!0)},r.prototype.scrollToRestoredPosition=function(){var t,e;return t=null!=(e=this.restorationData)?e.scrollPosition:void 0,null!=t?(this.controller.scrollToPosition(t),!0):void 0},r.prototype.scrollToAnchor=function(){return null!=this.location.anchor?(this.controller.scrollToAnchor(this.location.anchor),!0):void 0},r.prototype.scrollToTop=function(){return this.controller.scrollToPosition({x:0,y:0})},r.prototype.recordTimingMetric=function(t){var e;return null!=(e=this.timingMetrics)[t]?e[t]:e[t]=(new Date).getTime()},r.prototype.getTimingMetrics=function(){return t.copyObject(this.timingMetrics)},n=function(t){switch(t){case"replace":return"replaceHistoryWithLocationAndRestorationIdentifier";case"advance":case"restore":return"pushHistoryWithLocationAndRestorationIdentifier"}},r.prototype.shouldIssueRequest=function(){return"restore"===this.action?!this.hasCachedSnapshot():!0},r.prototype.cacheSnapshot=function(){return this.snapshotCached?void 0:(this.controller.cacheSnapshot(),this.snapshotCached=!0)},r.prototype.render=function(t){return this.cancelRender(),this.frame=requestAnimationFrame(function(e){return function(){return e.frame=null,t.call(e)}}(this))},r.prototype.cancelRender=function(){return this.frame?cancelAnimationFrame(this.frame):void 0},r}()}.call(this),function(){var e=function(t,e){return function(){return t.apply(e,arguments)}};t.Controller=function(){function r(){this.clickBubbled=e(this.clickBubbled,this),this.clickCaptured=e(this.clickCaptured,this),this.pageLoaded=e(this.pageLoaded,this),this.history=new t.History(this),this.view=new t.View(this),this.scrollManager=new t.ScrollManager(this),this.restorationData={},this.clearCache()}return r.prototype.start=function(){return t.supported&&!this.started?(addEventListener("click",this.clickCaptured,!0),addEventListener("DOMContentLoaded",this.pageLoaded,!1),this.scrollManager.start(),this.startHistory(),this.started=!0,this.enabled=!0):void 0},r.prototype.disable=function(){return this.enabled=!1},r.prototype.stop=function(){return this.started?(removeEventListener("click",this.clickCaptured,!0),removeEventListener("DOMContentLoaded",this.pageLoaded,!1),this.scrollManager.stop(),this.stopHistory(),this.started=!1):void 0},r.prototype.clearCache=function(){return this.cache=new t.SnapshotCache(10)},r.prototype.visit=function(e,r){var n,o;return null==r&&(r={}),e=t.Location.wrap(e),this.applicationAllowsVisitingLocation(e)?this.locationIsVisitable(e)?(n=null!=(o=r.action)?o:"advance",this.adapter.visitProposedToLocationWithAction(e,n)):window.location=e:void 0},r.prototype.startVisitToLocationWithAction=function(e,r,n){var o;return t.supported?(o=this.getRestorationDataForIdentifier(n),this.startVisit(e,r,{restorationData:o})):window.location=e},r.prototype.startHistory=function(){return this.location=t.Location.wrap(window.location),this.restorationIdentifier=t.uuid(),this.history.start(),this.history.replace(this.location,this.restorationIdentifier)},r.prototype.stopHistory=function(){return this.history.stop()},r.prototype.pushHistoryWithLocationAndRestorationIdentifier=function(e,r){return this.restorationIdentifier=r,this.location=t.Location.wrap(e),this.history.push(this.location,this.restorationIdentifier)},r.prototype.replaceHistoryWithLocationAndRestorationIdentifier=function(e,r){return this.restorationIdentifier=r,this.location=t.Location.wrap(e),this.history.replace(this.location,this.restorationIdentifier)},r.prototype.historyPoppedToLocationWithRestorationIdentifier=function(e,r){var n;return this.restorationIdentifier=r,this.enabled?(n=this.getRestorationDataForIdentifier(this.restorationIdentifier),this.startVisit(e,"restore",{restorationIdentifier:this.restorationIdentifier,restorationData:n,historyChanged:!0}),this.location=t.Location.wrap(e)):this.adapter.pageInvalidated()},r.prototype.getCachedSnapshotForLocation=function(t){var e;return e=this.cache.get(t),e?e.clone():void 0},r.prototype.shouldCacheSnapshot=function(){return this.view.getSnapshot().isCacheable()},r.prototype.cacheSnapshot=function(){var t;return this.shouldCacheSnapshot()?(this.notifyApplicationBeforeCachingSnapshot(),t=this.view.getSnapshot(),this.cache.put(this.lastRenderedLocation,t.clone())):void 0},r.prototype.scrollToAnchor=function(t){var e;return(e=document.getElementById(t))?this.scrollToElement(e):this.scrollToPosition({x:0,y:0})},r.prototype.scrollToElement=function(t){return this.scrollManager.scrollToElement(t)},r.prototype.scrollToPosition=function(t){return this.scrollManager.scrollToPosition(t)},r.prototype.scrollPositionChanged=function(t){var e;return e=this.getCurrentRestorationData(),e.scrollPosition=t},r.prototype.render=function(t,e){return this.view.render(t,e)},r.prototype.viewInvalidated=function(){return this.adapter.pageInvalidated()},r.prototype.viewWillRender=function(t){return this.notifyApplicationBeforeRender(t)},r.prototype.viewRendered=function(){return this.lastRenderedLocation=this.currentVisit.location,this.notifyApplicationAfterRender()},r.prototype.pageLoaded=function(){return this.lastRenderedLocation=this.location,this.notifyApplicationAfterPageLoad()},r.prototype.clickCaptured=function(){return removeEventListener("click",this.clickBubbled,!1),addEventListener("click",this.clickBubbled,!1)},r.prototype.clickBubbled=function(t){var e,r,n;return this.enabled&&this.clickEventIsSignificant(t)&&(r=this.getVisitableLinkForNode(t.target))&&(n=this.getVisitableLocationForLink(r))&&this.applicationAllowsFollowingLinkToLocation(r,n)?(t.preventDefault(),e=this.getActionForLink(r),this.visit(n,{action:e})):void 0},r.prototype.applicationAllowsFollowingLinkToLocation=function(t,e){var r;return r=this.notifyApplicationAfterClickingLinkToLocation(t,e),!r.defaultPrevented},r.prototype.applicationAllowsVisitingLocation=function(t){var e;return e=this.notifyApplicationBeforeVisitingLocation(t),!e.defaultPrevented},r.prototype.notifyApplicationAfterClickingLinkToLocation=function(e,r){return t.dispatch("turbolinks:click",{target:e,data:{url:r.absoluteURL},cancelable:!0})},r.prototype.notifyApplicationBeforeVisitingLocation=function(e){return t.dispatch("turbolinks:before-visit",{data:{url:e.absoluteURL},cancelable:!0})},r.prototype.notifyApplicationAfterVisitingLocation=function(e){return t.dispatch("turbolinks:visit",{data:{url:e.absoluteURL}})},r.prototype.notifyApplicationBeforeCachingSnapshot=function(){return t.dispatch("turbolinks:before-cache")},r.prototype.notifyApplicationBeforeRender=function(e){
return t.dispatch("turbolinks:before-render",{data:{newBody:e}})},r.prototype.notifyApplicationAfterRender=function(){return t.dispatch("turbolinks:render")},r.prototype.notifyApplicationAfterPageLoad=function(e){return null==e&&(e={}),t.dispatch("turbolinks:load",{data:{url:this.location.absoluteURL,timing:e}})},r.prototype.startVisit=function(t,e,r){var n;return null!=(n=this.currentVisit)&&n.cancel(),this.currentVisit=this.createVisit(t,e,r),this.currentVisit.start(),this.notifyApplicationAfterVisitingLocation(t)},r.prototype.createVisit=function(e,r,n){var o,i,s,a,u;return i=null!=n?n:{},a=i.restorationIdentifier,s=i.restorationData,o=i.historyChanged,u=new t.Visit(this,e,r),u.restorationIdentifier=null!=a?a:t.uuid(),u.restorationData=t.copyObject(s),u.historyChanged=o,u.referrer=this.location,u},r.prototype.visitCompleted=function(t){return this.notifyApplicationAfterPageLoad(t.getTimingMetrics())},r.prototype.clickEventIsSignificant=function(t){return!(t.defaultPrevented||t.target.isContentEditable||t.which>1||t.altKey||t.ctrlKey||t.metaKey||t.shiftKey)},r.prototype.getVisitableLinkForNode=function(e){return this.nodeIsVisitable(e)?t.closest(e,"a[href]:not([target]):not([download])"):void 0},r.prototype.getVisitableLocationForLink=function(e){var r;return r=new t.Location(e.getAttribute("href")),this.locationIsVisitable(r)?r:void 0},r.prototype.getActionForLink=function(t){var e;return null!=(e=t.getAttribute("data-turbolinks-action"))?e:"advance"},r.prototype.nodeIsVisitable=function(e){var r;return(r=t.closest(e,"[data-turbolinks]"))?"false"!==r.getAttribute("data-turbolinks"):!0},r.prototype.locationIsVisitable=function(t){return t.isPrefixedBy(this.view.getRootLocation())&&t.isHTML()},r.prototype.getCurrentRestorationData=function(){return this.getRestorationDataForIdentifier(this.restorationIdentifier)},r.prototype.getRestorationDataForIdentifier=function(t){var e;return null!=(e=this.restorationData)[t]?e[t]:e[t]={}},r}()}.call(this),function(){var e,r,n;t.start=function(){return r()?(null==t.controller&&(t.controller=e()),t.controller.start()):void 0},r=function(){return null==window.Turbolinks&&(window.Turbolinks=t),n()},e=function(){var e;return e=new t.Controller,e.adapter=new t.BrowserAdapter(e),e},n=function(){return window.Turbolinks===t},n()&&t.start()}.call(this)}).call(this),"object"==typeof module&&module.exports?module.exports=t:"function"==typeof define&&define.amd&&define(t)}).call(this);
window.tinymce = window.tinymce || {
  base:   '/assets/tinymce',
  suffix: ''
};

if (typeof Turbolinks != 'undefined' && Turbolinks.supported) {
  document.addEventListener('turbolinks:before-render', function() {
    tinymce.remove();
  });
}
;
// 4.6.2 (2017-05-23)
(function () {

var defs = {}; // id -> {dependencies, definition, instance (possibly undefined)}

// Used when there is no 'main' module.
// The name is probably (hopefully) unique so minification removes for releases.
var register_3795 = function (id) {
  var module = dem(id);
  var fragments = id.split('.');
  var target = Function('return this;')();
  for (var i = 0; i < fragments.length - 1; ++i) {
    if (target[fragments[i]] === undefined)
      target[fragments[i]] = {};
    target = target[fragments[i]];
  }
  target[fragments[fragments.length - 1]] = module;
};

var instantiate = function (id) {
  var actual = defs[id];
  var dependencies = actual.deps;
  var definition = actual.defn;
  var len = dependencies.length;
  var instances = new Array(len);
  for (var i = 0; i < len; ++i)
    instances[i] = dem(dependencies[i]);
  var defResult = definition.apply(null, instances);
  if (defResult === undefined)
     throw 'module [' + id + '] returned undefined';
  actual.instance = defResult;
};

var def = function (id, dependencies, definition) {
  if (typeof id !== 'string')
    throw 'module id must be a string';
  else if (dependencies === undefined)
    throw 'no dependencies for ' + id;
  else if (definition === undefined)
    throw 'no definition function for ' + id;
  defs[id] = {
    deps: dependencies,
    defn: definition,
    instance: undefined
  };
};

var dem = function (id) {
  var actual = defs[id];
  if (actual === undefined)
    throw 'module [' + id + '] was undefined';
  else if (actual.instance === undefined)
    instantiate(id);
  return actual.instance;
};

var req = function (ids, callback) {
  var len = ids.length;
  var instances = new Array(len);
  for (var i = 0; i < len; ++i)
    instances.push(dem(ids[i]));
  callback.apply(null, callback);
};

var ephox = {};

ephox.bolt = {
  module: {
    api: {
      define: def,
      require: req,
      demand: dem
    }
  }
};

var define = def;
var require = req;
var demand = dem;
// this helps with minificiation when using a lot of global references
var defineGlobal = function (id, ref) {
  define(id, [], function () { return ref; });
};
/*jsc
["tinymce.core.api.Main","tinymce.core.api.Tinymce","tinymce.core.Register","tinymce.core.geom.Rect","tinymce.core.util.Promise","tinymce.core.util.Delay","tinymce.core.Env","tinymce.core.dom.EventUtils","tinymce.core.dom.Sizzle","tinymce.core.util.Tools","tinymce.core.dom.DomQuery","tinymce.core.html.Styles","tinymce.core.dom.TreeWalker","tinymce.core.html.Entities","tinymce.core.dom.DOMUtils","tinymce.core.dom.ScriptLoader","tinymce.core.AddOnManager","tinymce.core.dom.RangeUtils","tinymce.core.html.Node","tinymce.core.html.Schema","tinymce.core.html.SaxParser","tinymce.core.html.DomParser","tinymce.core.html.Writer","tinymce.core.html.Serializer","tinymce.core.dom.Serializer","tinymce.core.util.VK","tinymce.core.dom.ControlSelection","tinymce.core.dom.BookmarkManager","tinymce.core.dom.Selection","tinymce.core.Formatter","tinymce.core.UndoManager","tinymce.core.EditorCommands","tinymce.core.util.URI","tinymce.core.util.Class","tinymce.core.util.EventDispatcher","tinymce.core.util.Observable","tinymce.core.WindowManager","tinymce.core.NotificationManager","tinymce.core.EditorObservable","tinymce.core.Shortcuts","tinymce.core.Editor","tinymce.core.util.I18n","tinymce.core.FocusManager","tinymce.core.EditorManager","tinymce.core.util.XHR","tinymce.core.util.JSON","tinymce.core.util.JSONRequest","tinymce.core.util.JSONP","tinymce.core.util.LocalStorage","tinymce.core.api.Compat","tinymce.core.util.Color","tinymce.core.ui.Api","tinymce.core.util.Arr","tinymce.core.dom.Range","tinymce.core.dom.StyleSheetLoader","tinymce.core.dom.NodeType","tinymce.core.caret.CaretContainer","tinymce.core.text.Zwsp","tinymce.core.caret.CaretBookmark","tinymce.core.caret.CaretPosition","tinymce.core.dom.ScrollIntoView","tinymce.core.dom.TridentSelection","tinymce.core.selection.FragmentReader","tinymce.core.dom.ElementUtils","tinymce.core.util.Fun","tinymce.core.fmt.Preview","tinymce.core.fmt.Hooks","tinymce.core.undo.Levels","tinymce.core.delete.DeleteCommands","tinymce.core.InsertContent","global!document","tinymce.core.ui.Window","tinymce.core.ui.MessageBox","tinymce.core.ui.Notification","tinymce.core.init.Render","tinymce.core.Mode","tinymce.core.ui.Sidebar","tinymce.core.util.Uuid","tinymce.core.ErrorReporter","tinymce.core.LegacyInput","tinymce.core.ui.Selector","tinymce.core.ui.Collection","tinymce.core.ui.ReflowQueue","tinymce.core.ui.Control","tinymce.core.ui.Factory","tinymce.core.ui.KeyboardNavigation","tinymce.core.ui.Container","tinymce.core.ui.DragHelper","tinymce.core.ui.Scrollable","tinymce.core.ui.Panel","tinymce.core.ui.Movable","tinymce.core.ui.Resizable","tinymce.core.ui.FloatPanel","tinymce.core.ui.Tooltip","tinymce.core.ui.Widget","tinymce.core.ui.Progress","tinymce.core.ui.Layout","tinymce.core.ui.AbsoluteLayout","tinymce.core.ui.Button","tinymce.core.ui.ButtonGroup","tinymce.core.ui.Checkbox","tinymce.core.ui.ComboBox","tinymce.core.ui.ColorBox","tinymce.core.ui.PanelButton","tinymce.core.ui.ColorButton","tinymce.core.ui.ColorPicker","tinymce.core.ui.Path","tinymce.core.ui.ElementPath","tinymce.core.ui.FormItem","tinymce.core.ui.Form","tinymce.core.ui.FieldSet","tinymce.core.ui.FilePicker","tinymce.core.ui.FitLayout","tinymce.core.ui.FlexLayout","tinymce.core.ui.FlowLayout","tinymce.core.ui.FormatControls","tinymce.core.ui.GridLayout","tinymce.core.ui.Iframe","tinymce.core.ui.InfoBox","tinymce.core.ui.Label","tinymce.core.ui.Toolbar","tinymce.core.ui.MenuBar","tinymce.core.ui.MenuButton","tinymce.core.ui.MenuItem","tinymce.core.ui.Throbber","tinymce.core.ui.Menu","tinymce.core.ui.ListBox","tinymce.core.ui.Radio","tinymce.core.ui.ResizeHandle","tinymce.core.ui.SelectBox","tinymce.core.ui.Slider","tinymce.core.ui.Spacer","tinymce.core.ui.SplitButton","tinymce.core.ui.StackLayout","tinymce.core.ui.TabPanel","tinymce.core.ui.TextBox","ephox.katamari.api.Arr","ephox.katamari.api.Fun","ephox.katamari.api.Future","ephox.katamari.api.Futures","ephox.katamari.api.Result","tinymce.core.caret.CaretCandidate","tinymce.core.geom.ClientRect","tinymce.core.text.ExtendingChar","ephox.sugar.api.dom.Insert","ephox.sugar.api.dom.Replication","ephox.sugar.api.node.Element","ephox.sugar.api.node.Fragment","ephox.sugar.api.node.Node","tinymce.core.dom.ElementType","tinymce.core.dom.Parents","tinymce.core.selection.SelectionUtils","tinymce.core.undo.Fragments","tinymce.core.delete.BlockBoundaryDelete","tinymce.core.delete.BlockRangeDelete","tinymce.core.delete.CefDelete","tinymce.core.delete.InlineBoundaryDelete","tinymce.core.caret.CaretWalker","tinymce.core.dom.RangeNormalizer","tinymce.core.InsertList","tinymce.core.data.ObservableObject","tinymce.core.ui.DomUtils","tinymce.core.ui.BoxUtils","tinymce.core.ui.ClassList","global!window","tinymce.core.init.Init","tinymce.core.PluginManager","tinymce.core.ThemeManager","tinymce.core.content.LinkTargets","tinymce.core.fmt.FontInfo","ephox.katamari.api.Option","global!Array","global!Error","global!String","ephox.katamari.api.LazyValue","ephox.katamari.async.Bounce","ephox.katamari.async.AsyncValues","ephox.sugar.api.search.Traverse","ephox.sugar.api.properties.Attr","global!console","ephox.sugar.api.dom.InsertAll","ephox.sugar.api.dom.Remove","ephox.sugar.api.node.NodeTypes","ephox.sugar.api.dom.Compare","ephox.katamari.api.Options","tinymce.core.undo.Diff","tinymce.core.delete.BlockBoundary","tinymce.core.delete.MergeBlocks","tinymce.core.delete.DeleteUtils","tinymce.core.caret.CaretUtils","tinymce.core.delete.CefDeleteAction","tinymce.core.delete.DeleteElement","tinymce.core.keyboard.BoundaryCaret","tinymce.core.keyboard.BoundaryLocation","tinymce.core.keyboard.BoundarySelection","tinymce.core.keyboard.InlineUtils","tinymce.core.caret.CaretFinder","tinymce.core.data.Binding","tinymce.core.init.InitContentBody","global!Object","global!setTimeout","ephox.katamari.api.Type","ephox.katamari.api.Struct","ephox.sugar.alien.Recurse","ephox.sand.api.Node","ephox.sand.api.PlatformDetection","ephox.sugar.api.search.Selectors","ephox.katamari.api.Obj","ephox.sugar.api.search.PredicateFind","tinymce.core.dom.Empty","ephox.katamari.api.Adt","tinymce.core.text.Bidi","tinymce.core.caret.CaretContainerInline","tinymce.core.caret.CaretContainerRemove","tinymce.core.util.LazyEvaluator","ephox.katamari.api.Cell","tinymce.core.caret.CaretContainerInput","tinymce.core.EditorUpload","tinymce.core.ForceBlocks","tinymce.core.keyboard.KeyboardOverrides","tinymce.core.NodeChange","tinymce.core.SelectionOverrides","tinymce.core.util.Quirks","ephox.katamari.data.Immutable","ephox.katamari.data.MixedBag","ephox.sand.util.Global","ephox.katamari.api.Thunk","ephox.sand.core.PlatformDetection","global!navigator","ephox.sugar.api.node.Body","ephox.sugar.impl.ClosestOrAncestor","ephox.sugar.api.search.SelectorExists","tinymce.core.file.Uploader","tinymce.core.file.ImageScanner","tinymce.core.file.BlobCache","tinymce.core.file.UploadStatus","tinymce.core.keyboard.ArrowKeys","tinymce.core.keyboard.DeleteBackspaceKeys","tinymce.core.keyboard.EnterKey","tinymce.core.keyboard.SpaceKey","tinymce.core.caret.FakeCaret","tinymce.core.caret.LineUtils","tinymce.core.DragDropOverrides","tinymce.core.keyboard.CefUtils","tinymce.core.dom.NodePath","ephox.katamari.util.BagUtils","ephox.katamari.api.Resolve","ephox.sand.core.Browser","ephox.sand.core.OperatingSystem","ephox.sand.detect.DeviceType","ephox.sand.detect.UaString","ephox.sand.info.PlatformInfo","ephox.sugar.api.search.SelectorFind","tinymce.core.file.Conversions","global!URL","tinymce.core.keyboard.CefNavigation","tinymce.core.keyboard.MatchKeys","tinymce.core.keyboard.InsertSpace","tinymce.core.dom.Dimensions","tinymce.core.dom.MousePosition","ephox.katamari.api.Global","ephox.sand.detect.Version","ephox.katamari.api.Strings","tinymce.core.caret.LineWalker","ephox.katamari.api.Merger","global!Number","ephox.katamari.str.StrAppend","ephox.katamari.str.StringParts"]
jsc*/
/**
 * Rect.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Contains various tools for rect/position calculation.
 *
 * @class tinymce.geom.Rect
 */
define(
  'tinymce.core.geom.Rect',
  [
  ],
  function () {
    "use strict";

    var min = Math.min, max = Math.max, round = Math.round;

    /**
     * Returns the rect positioned based on the relative position name
     * to the target rect.
     *
     * @method relativePosition
     * @param {Rect} rect Source rect to modify into a new rect.
     * @param {Rect} targetRect Rect to move relative to based on the rel option.
     * @param {String} rel Relative position. For example: tr-bl.
     */
    function relativePosition(rect, targetRect, rel) {
      var x, y, w, h, targetW, targetH;

      x = targetRect.x;
      y = targetRect.y;
      w = rect.w;
      h = rect.h;
      targetW = targetRect.w;
      targetH = targetRect.h;

      rel = (rel || '').split('');

      if (rel[0] === 'b') {
        y += targetH;
      }

      if (rel[1] === 'r') {
        x += targetW;
      }

      if (rel[0] === 'c') {
        y += round(targetH / 2);
      }

      if (rel[1] === 'c') {
        x += round(targetW / 2);
      }

      if (rel[3] === 'b') {
        y -= h;
      }

      if (rel[4] === 'r') {
        x -= w;
      }

      if (rel[3] === 'c') {
        y -= round(h / 2);
      }

      if (rel[4] === 'c') {
        x -= round(w / 2);
      }

      return create(x, y, w, h);
    }

    /**
     * Tests various positions to get the most suitable one.
     *
     * @method findBestRelativePosition
     * @param {Rect} rect Rect to use as source.
     * @param {Rect} targetRect Rect to move relative to.
     * @param {Rect} constrainRect Rect to constrain within.
     * @param {Array} rels Array of relative positions to test against.
     */
    function findBestRelativePosition(rect, targetRect, constrainRect, rels) {
      var pos, i;

      for (i = 0; i < rels.length; i++) {
        pos = relativePosition(rect, targetRect, rels[i]);

        if (pos.x >= constrainRect.x && pos.x + pos.w <= constrainRect.w + constrainRect.x &&
          pos.y >= constrainRect.y && pos.y + pos.h <= constrainRect.h + constrainRect.y) {
          return rels[i];
        }
      }

      return null;
    }

    /**
     * Inflates the rect in all directions.
     *
     * @method inflate
     * @param {Rect} rect Rect to expand.
     * @param {Number} w Relative width to expand by.
     * @param {Number} h Relative height to expand by.
     * @return {Rect} New expanded rect.
     */
    function inflate(rect, w, h) {
      return create(rect.x - w, rect.y - h, rect.w + w * 2, rect.h + h * 2);
    }

    /**
     * Returns the intersection of the specified rectangles.
     *
     * @method intersect
     * @param {Rect} rect The first rectangle to compare.
     * @param {Rect} cropRect The second rectangle to compare.
     * @return {Rect} The intersection of the two rectangles or null if they don't intersect.
     */
    function intersect(rect, cropRect) {
      var x1, y1, x2, y2;

      x1 = max(rect.x, cropRect.x);
      y1 = max(rect.y, cropRect.y);
      x2 = min(rect.x + rect.w, cropRect.x + cropRect.w);
      y2 = min(rect.y + rect.h, cropRect.y + cropRect.h);

      if (x2 - x1 < 0 || y2 - y1 < 0) {
        return null;
      }

      return create(x1, y1, x2 - x1, y2 - y1);
    }

    /**
     * Returns a rect clamped within the specified clamp rect. This forces the
     * rect to be inside the clamp rect.
     *
     * @method clamp
     * @param {Rect} rect Rectangle to force within clamp rect.
     * @param {Rect} clampRect Rectable to force within.
     * @param {Boolean} fixedSize True/false if size should be fixed.
     * @return {Rect} Clamped rect.
     */
    function clamp(rect, clampRect, fixedSize) {
      var underflowX1, underflowY1, overflowX2, overflowY2,
        x1, y1, x2, y2, cx2, cy2;

      x1 = rect.x;
      y1 = rect.y;
      x2 = rect.x + rect.w;
      y2 = rect.y + rect.h;
      cx2 = clampRect.x + clampRect.w;
      cy2 = clampRect.y + clampRect.h;

      underflowX1 = max(0, clampRect.x - x1);
      underflowY1 = max(0, clampRect.y - y1);
      overflowX2 = max(0, x2 - cx2);
      overflowY2 = max(0, y2 - cy2);

      x1 += underflowX1;
      y1 += underflowY1;

      if (fixedSize) {
        x2 += underflowX1;
        y2 += underflowY1;
        x1 -= overflowX2;
        y1 -= overflowY2;
      }

      x2 -= overflowX2;
      y2 -= overflowY2;

      return create(x1, y1, x2 - x1, y2 - y1);
    }

    /**
     * Creates a new rectangle object.
     *
     * @method create
     * @param {Number} x Rectangle x location.
     * @param {Number} y Rectangle y location.
     * @param {Number} w Rectangle width.
     * @param {Number} h Rectangle height.
     * @return {Rect} New rectangle object.
     */
    function create(x, y, w, h) {
      return { x: x, y: y, w: w, h: h };
    }

    /**
     * Creates a new rectangle object form a clientRects object.
     *
     * @method fromClientRect
     * @param {ClientRect} clientRect DOM ClientRect object.
     * @return {Rect} New rectangle object.
     */
    function fromClientRect(clientRect) {
      return create(clientRect.left, clientRect.top, clientRect.width, clientRect.height);
    }

    return {
      inflate: inflate,
      relativePosition: relativePosition,
      findBestRelativePosition: findBestRelativePosition,
      intersect: intersect,
      clamp: clamp,
      create: create,
      fromClientRect: fromClientRect
    };
  }
);

/**
 * Promise.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * Promise polyfill under MIT license: https://github.com/taylorhakes/promise-polyfill
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/* eslint-disable */
/* jshint ignore:start */

/**
 * Modifed to be a feature fill and wrapped as tinymce module.
 */
define(
  'tinymce.core.util.Promise',
  [],
  function () {
    if (window.Promise) {
      return window.Promise;
    }

    // Use polyfill for setImmediate for performance gains
    var asap = Promise.immediateFn || (typeof setImmediate === 'function' && setImmediate) ||
      function (fn) { setTimeout(fn, 1); };

    // Polyfill for Function.prototype.bind
    function bind(fn, thisArg) {
      return function () {
        fn.apply(thisArg, arguments);
      };
    }

    var isArray = Array.isArray || function (value) { return Object.prototype.toString.call(value) === "[object Array]"; };

    function Promise(fn) {
      if (typeof this !== 'object') throw new TypeError('Promises must be constructed via new');
      if (typeof fn !== 'function') throw new TypeError('not a function');
      this._state = null;
      this._value = null;
      this._deferreds = [];

      doResolve(fn, bind(resolve, this), bind(reject, this));
    }

    function handle(deferred) {
      var me = this;
      if (this._state === null) {
        this._deferreds.push(deferred);
        return;
      }
      asap(function () {
        var cb = me._state ? deferred.onFulfilled : deferred.onRejected;
        if (cb === null) {
          (me._state ? deferred.resolve : deferred.reject)(me._value);
          return;
        }
        var ret;
        try {
          ret = cb(me._value);
        }
        catch (e) {
          deferred.reject(e);
          return;
        }
        deferred.resolve(ret);
      });
    }

    function resolve(newValue) {
      try { //Promise Resolution Procedure: https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure
        if (newValue === this) throw new TypeError('A promise cannot be resolved with itself.');
        if (newValue && (typeof newValue === 'object' || typeof newValue === 'function')) {
          var then = newValue.then;
          if (typeof then === 'function') {
            doResolve(bind(then, newValue), bind(resolve, this), bind(reject, this));
            return;
          }
        }
        this._state = true;
        this._value = newValue;
        finale.call(this);
      } catch (e) { reject.call(this, e); }
    }

    function reject(newValue) {
      this._state = false;
      this._value = newValue;
      finale.call(this);
    }

    function finale() {
      for (var i = 0, len = this._deferreds.length; i < len; i++) {
        handle.call(this, this._deferreds[i]);
      }
      this._deferreds = null;
    }

    function Handler(onFulfilled, onRejected, resolve, reject) {
      this.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null;
      this.onRejected = typeof onRejected === 'function' ? onRejected : null;
      this.resolve = resolve;
      this.reject = reject;
    }

    /**
     * Take a potentially misbehaving resolver function and make sure
     * onFulfilled and onRejected are only called once.
     *
     * Makes no guarantees about asynchrony.
     */
    function doResolve(fn, onFulfilled, onRejected) {
      var done = false;
      try {
        fn(function (value) {
          if (done) return;
          done = true;
          onFulfilled(value);
        }, function (reason) {
          if (done) return;
          done = true;
          onRejected(reason);
        });
      } catch (ex) {
        if (done) return;
        done = true;
        onRejected(ex);
      }
    }

    Promise.prototype['catch'] = function (onRejected) {
      return this.then(null, onRejected);
    };

    Promise.prototype.then = function (onFulfilled, onRejected) {
      var me = this;
      return new Promise(function (resolve, reject) {
        handle.call(me, new Handler(onFulfilled, onRejected, resolve, reject));
      });
    };

    Promise.all = function () {
      var args = Array.prototype.slice.call(arguments.length === 1 && isArray(arguments[0]) ? arguments[0] : arguments);

      return new Promise(function (resolve, reject) {
        if (args.length === 0) return resolve([]);
        var remaining = args.length;
        function res(i, val) {
          try {
            if (val && (typeof val === 'object' || typeof val === 'function')) {
              var then = val.then;
              if (typeof then === 'function') {
                then.call(val, function (val) { res(i, val); }, reject);
                return;
              }
            }
            args[i] = val;
            if (--remaining === 0) {
              resolve(args);
            }
          } catch (ex) {
            reject(ex);
          }
        }
        for (var i = 0; i < args.length; i++) {
          res(i, args[i]);
        }
      });
    };

    Promise.resolve = function (value) {
      if (value && typeof value === 'object' && value.constructor === Promise) {
        return value;
      }

      return new Promise(function (resolve) {
        resolve(value);
      });
    };

    Promise.reject = function (value) {
      return new Promise(function (resolve, reject) {
        reject(value);
      });
    };

    Promise.race = function (values) {
      return new Promise(function (resolve, reject) {
        for (var i = 0, len = values.length; i < len; i++) {
          values[i].then(resolve, reject);
        }
      });
    };

    return Promise;
  }
);

/* jshint ignore:end */
/* eslint-enable */
/**
 * Delay.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility class for working with delayed actions like setTimeout.
 *
 * @class tinymce.util.Delay
 */
define(
  'tinymce.core.util.Delay',
  [
    "tinymce.core.util.Promise"
  ],
  function (Promise) {
    var requestAnimationFramePromise;

    function requestAnimationFrame(callback, element) {
      var i, requestAnimationFrameFunc = window.requestAnimationFrame, vendors = ['ms', 'moz', 'webkit'];

      function featurefill(callback) {
        window.setTimeout(callback, 0);
      }

      for (i = 0; i < vendors.length && !requestAnimationFrameFunc; i++) {
        requestAnimationFrameFunc = window[vendors[i] + 'RequestAnimationFrame'];
      }

      if (!requestAnimationFrameFunc) {
        requestAnimationFrameFunc = featurefill;
      }

      requestAnimationFrameFunc(callback, element);
    }

    function wrappedSetTimeout(callback, time) {
      if (typeof time != 'number') {
        time = 0;
      }

      return setTimeout(callback, time);
    }

    function wrappedSetInterval(callback, time) {
      if (typeof time != 'number') {
        time = 1; // IE 8 needs it to be > 0
      }

      return setInterval(callback, time);
    }

    function wrappedClearTimeout(id) {
      return clearTimeout(id);
    }

    function wrappedClearInterval(id) {
      return clearInterval(id);
    }

    function debounce(callback, time) {
      var timer, func;

      func = function () {
        var args = arguments;

        clearTimeout(timer);

        timer = wrappedSetTimeout(function () {
          callback.apply(this, args);
        }, time);
      };

      func.stop = function () {
        clearTimeout(timer);
      };

      return func;
    }

    return {
      /**
       * Requests an animation frame and fallbacks to a timeout on older browsers.
       *
       * @method requestAnimationFrame
       * @param {function} callback Callback to execute when a new frame is available.
       * @param {DOMElement} element Optional element to scope it to.
       */
      requestAnimationFrame: function (callback, element) {
        if (requestAnimationFramePromise) {
          requestAnimationFramePromise.then(callback);
          return;
        }

        requestAnimationFramePromise = new Promise(function (resolve) {
          if (!element) {
            element = document.body;
          }

          requestAnimationFrame(resolve, element);
        }).then(callback);
      },

      /**
       * Sets a timer in ms and executes the specified callback when the timer runs out.
       *
       * @method setTimeout
       * @param {function} callback Callback to execute when timer runs out.
       * @param {Number} time Optional time to wait before the callback is executed, defaults to 0.
       * @return {Number} Timeout id number.
       */
      setTimeout: wrappedSetTimeout,

      /**
       * Sets an interval timer in ms and executes the specified callback at every interval of that time.
       *
       * @method setInterval
       * @param {function} callback Callback to execute when interval time runs out.
       * @param {Number} time Optional time to wait before the callback is executed, defaults to 0.
       * @return {Number} Timeout id number.
       */
      setInterval: wrappedSetInterval,

      /**
       * Sets an editor timeout it's similar to setTimeout except that it checks if the editor instance is
       * still alive when the callback gets executed.
       *
       * @method setEditorTimeout
       * @param {tinymce.Editor} editor Editor instance to check the removed state on.
       * @param {function} callback Callback to execute when timer runs out.
       * @param {Number} time Optional time to wait before the callback is executed, defaults to 0.
       * @return {Number} Timeout id number.
       */
      setEditorTimeout: function (editor, callback, time) {
        return wrappedSetTimeout(function () {
          if (!editor.removed) {
            callback();
          }
        }, time);
      },

      /**
       * Sets an interval timer it's similar to setInterval except that it checks if the editor instance is
       * still alive when the callback gets executed.
       *
       * @method setEditorInterval
       * @param {function} callback Callback to execute when interval time runs out.
       * @param {Number} time Optional time to wait before the callback is executed, defaults to 0.
       * @return {Number} Timeout id number.
       */
      setEditorInterval: function (editor, callback, time) {
        var timer;

        timer = wrappedSetInterval(function () {
          if (!editor.removed) {
            callback();
          } else {
            clearInterval(timer);
          }
        }, time);

        return timer;
      },

      /**
       * Creates debounced callback function that only gets executed once within the specified time.
       *
       * @method debounce
       * @param {function} callback Callback to execute when timer finishes.
       * @param {Number} time Optional time to wait before the callback is executed, defaults to 0.
       * @return {Function} debounced function callback.
       */
      debounce: debounce,

      // Throttle needs to be debounce due to backwards compatibility.
      throttle: debounce,

      /**
       * Clears an interval timer so it won't execute.
       *
       * @method clearInterval
       * @param {Number} Interval timer id number.
       */
      clearInterval: wrappedClearInterval,

      /**
       * Clears an timeout timer so it won't execute.
       *
       * @method clearTimeout
       * @param {Number} Timeout timer id number.
       */
      clearTimeout: wrappedClearTimeout
    };
  }
);

/**
 * Env.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class contains various environment constants like browser versions etc.
 * Normally you don't want to sniff specific browser versions but sometimes you have
 * to when it's impossible to feature detect. So use this with care.
 *
 * @class tinymce.Env
 * @static
 */
define(
  'tinymce.core.Env',
  [
  ],
  function () {
    var nav = navigator, userAgent = nav.userAgent;
    var opera, webkit, ie, ie11, ie12, gecko, mac, iDevice, android, fileApi, phone, tablet, windowsPhone;

    function matchMediaQuery(query) {
      return "matchMedia" in window ? matchMedia(query).matches : false;
    }

    opera = window.opera && window.opera.buildNumber;
    android = /Android/.test(userAgent);
    webkit = /WebKit/.test(userAgent);
    ie = !webkit && !opera && (/MSIE/gi).test(userAgent) && (/Explorer/gi).test(nav.appName);
    ie = ie && /MSIE (\w+)\./.exec(userAgent)[1];
    ie11 = userAgent.indexOf('Trident/') != -1 && (userAgent.indexOf('rv:') != -1 || nav.appName.indexOf('Netscape') != -1) ? 11 : false;
    ie12 = (userAgent.indexOf('Edge/') != -1 && !ie && !ie11) ? 12 : false;
    ie = ie || ie11 || ie12;
    gecko = !webkit && !ie11 && /Gecko/.test(userAgent);
    mac = userAgent.indexOf('Mac') != -1;
    iDevice = /(iPad|iPhone)/.test(userAgent);
    fileApi = "FormData" in window && "FileReader" in window && "URL" in window && !!URL.createObjectURL;
    phone = matchMediaQuery("only screen and (max-device-width: 480px)") && (android || iDevice);
    tablet = matchMediaQuery("only screen and (min-width: 800px)") && (android || iDevice);
    windowsPhone = userAgent.indexOf('Windows Phone') != -1;

    if (ie12) {
      webkit = false;
    }

    // Is a iPad/iPhone and not on iOS5 sniff the WebKit version since older iOS WebKit versions
    // says it has contentEditable support but there is no visible caret.
    var contentEditable = !iDevice || fileApi || userAgent.match(/AppleWebKit\/(\d*)/)[1] >= 534;

    return {
      /**
       * Constant that is true if the browser is Opera.
       *
       * @property opera
       * @type Boolean
       * @final
       */
      opera: opera,

      /**
       * Constant that is true if the browser is WebKit (Safari/Chrome).
       *
       * @property webKit
       * @type Boolean
       * @final
       */
      webkit: webkit,

      /**
       * Constant that is more than zero if the browser is IE.
       *
       * @property ie
       * @type Boolean
       * @final
       */
      ie: ie,

      /**
       * Constant that is true if the browser is Gecko.
       *
       * @property gecko
       * @type Boolean
       * @final
       */
      gecko: gecko,

      /**
       * Constant that is true if the os is Mac OS.
       *
       * @property mac
       * @type Boolean
       * @final
       */
      mac: mac,

      /**
       * Constant that is true if the os is iOS.
       *
       * @property iOS
       * @type Boolean
       * @final
       */
      iOS: iDevice,

      /**
       * Constant that is true if the os is android.
       *
       * @property android
       * @type Boolean
       * @final
       */
      android: android,

      /**
       * Constant that is true if the browser supports editing.
       *
       * @property contentEditable
       * @type Boolean
       * @final
       */
      contentEditable: contentEditable,

      /**
       * Transparent image data url.
       *
       * @property transparentSrc
       * @type Boolean
       * @final
       */
      transparentSrc: "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7",

      /**
       * Returns true/false if the browser can or can't place the caret after a inline block like an image.
       *
       * @property noCaretAfter
       * @type Boolean
       * @final
       */
      caretAfter: ie != 8,

      /**
       * Constant that is true if the browser supports native DOM Ranges. IE 9+.
       *
       * @property range
       * @type Boolean
       */
      range: window.getSelection && "Range" in window,

      /**
       * Returns the IE document mode for non IE browsers this will fake IE 10.
       *
       * @property documentMode
       * @type Number
       */
      documentMode: ie && !ie12 ? (document.documentMode || 7) : 10,

      /**
       * Constant that is true if the browser has a modern file api.
       *
       * @property fileApi
       * @type Boolean
       */
      fileApi: fileApi,

      /**
       * Constant that is true if the browser supports contentEditable=false regions.
       *
       * @property ceFalse
       * @type Boolean
       */
      ceFalse: (ie === false || ie > 8),

      /**
       * Constant if CSP mode is possible or not. Meaning we can't use script urls for the iframe.
       */
      canHaveCSP: (ie === false || ie > 11),

      desktop: !phone && !tablet,
      windowsPhone: windowsPhone
    };
  }
);

/**
 * EventUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*jshint loopfunc:true*/
/*eslint no-loop-func:0 */

/**
 * This class wraps the browsers native event logic with more convenient methods.
 *
 * @class tinymce.dom.EventUtils
 */
define(
  'tinymce.core.dom.EventUtils',
  [
    "tinymce.core.util.Delay",
    "tinymce.core.Env"
  ],
  function (Delay, Env) {
    "use strict";

    var eventExpandoPrefix = "mce-data-";
    var mouseEventRe = /^(?:mouse|contextmenu)|click/;
    var deprecated = {
      keyLocation: 1, layerX: 1, layerY: 1, returnValue: 1,
      webkitMovementX: 1, webkitMovementY: 1, keyIdentifier: 1
    };

    // Checks if it is our own isDefaultPrevented function
    var hasIsDefaultPrevented = function (event) {
      return event.isDefaultPrevented === returnTrue || event.isDefaultPrevented === returnFalse;
    };

    // Dummy function that gets replaced on the delegation state functions
    var returnFalse = function () {
      return false;
    };

    // Dummy function that gets replaced on the delegation state functions
    var returnTrue = function () {
      return true;
    };

    /**
     * Binds a native event to a callback on the speified target.
     */
    function addEvent(target, name, callback, capture) {
      if (target.addEventListener) {
        target.addEventListener(name, callback, capture || false);
      } else if (target.attachEvent) {
        target.attachEvent('on' + name, callback);
      }
    }

    /**
     * Unbinds a native event callback on the specified target.
     */
    function removeEvent(target, name, callback, capture) {
      if (target.removeEventListener) {
        target.removeEventListener(name, callback, capture || false);
      } else if (target.detachEvent) {
        target.detachEvent('on' + name, callback);
      }
    }

    /**
     * Gets the event target based on shadow dom properties like path and deepPath.
     */
    function getTargetFromShadowDom(event, defaultTarget) {
      var path, target = defaultTarget;

      // When target element is inside Shadow DOM we need to take first element from path
      // otherwise we'll get Shadow Root parent, not actual target element

      // Normalize target for WebComponents v0 implementation (in Chrome)
      path = event.path;
      if (path && path.length > 0) {
        target = path[0];
      }

      // Normalize target for WebComponents v1 implementation (standard)
      if (event.deepPath) {
        path = event.deepPath();
        if (path && path.length > 0) {
          target = path[0];
        }
      }

      return target;
    }

    /**
     * Normalizes a native event object or just adds the event specific methods on a custom event.
     */
    function fix(originalEvent, data) {
      var name, event = data || {}, undef;

      // Copy all properties from the original event
      for (name in originalEvent) {
        // layerX/layerY is deprecated in Chrome and produces a warning
        if (!deprecated[name]) {
          event[name] = originalEvent[name];
        }
      }

      // Normalize target IE uses srcElement
      if (!event.target) {
        event.target = event.srcElement || document;
      }

      // Experimental shadow dom support
      if (Env.experimentalShadowDom) {
        event.target = getTargetFromShadowDom(originalEvent, event.target);
      }

      // Calculate pageX/Y if missing and clientX/Y available
      if (originalEvent && mouseEventRe.test(originalEvent.type) && originalEvent.pageX === undef && originalEvent.clientX !== undef) {
        var eventDoc = event.target.ownerDocument || document;
        var doc = eventDoc.documentElement;
        var body = eventDoc.body;

        event.pageX = originalEvent.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) -
          (doc && doc.clientLeft || body && body.clientLeft || 0);

        event.pageY = originalEvent.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) -
          (doc && doc.clientTop || body && body.clientTop || 0);
      }

      // Add preventDefault method
      event.preventDefault = function () {
        event.isDefaultPrevented = returnTrue;

        // Execute preventDefault on the original event object
        if (originalEvent) {
          if (originalEvent.preventDefault) {
            originalEvent.preventDefault();
          } else {
            originalEvent.returnValue = false; // IE
          }
        }
      };

      // Add stopPropagation
      event.stopPropagation = function () {
        event.isPropagationStopped = returnTrue;

        // Execute stopPropagation on the original event object
        if (originalEvent) {
          if (originalEvent.stopPropagation) {
            originalEvent.stopPropagation();
          } else {
            originalEvent.cancelBubble = true; // IE
          }
        }
      };

      // Add stopImmediatePropagation
      event.stopImmediatePropagation = function () {
        event.isImmediatePropagationStopped = returnTrue;
        event.stopPropagation();
      };

      // Add event delegation states
      if (hasIsDefaultPrevented(event) === false) {
        event.isDefaultPrevented = returnFalse;
        event.isPropagationStopped = returnFalse;
        event.isImmediatePropagationStopped = returnFalse;
      }

      // Add missing metaKey for IE 8
      if (typeof event.metaKey == 'undefined') {
        event.metaKey = false;
      }

      return event;
    }

    /**
     * Bind a DOMContentLoaded event across browsers and executes the callback once the page DOM is initialized.
     * It will also set/check the domLoaded state of the event_utils instance so ready isn't called multiple times.
     */
    function bindOnReady(win, callback, eventUtils) {
      var doc = win.document, event = { type: 'ready' };

      if (eventUtils.domLoaded) {
        callback(event);
        return;
      }

      function isDocReady() {
        // Check complete or interactive state if there is a body
        // element on some iframes IE 8 will produce a null body
        return doc.readyState === "complete" || (doc.readyState === "interactive" && doc.body);
      }

      // Gets called when the DOM is ready
      function readyHandler() {
        if (!eventUtils.domLoaded) {
          eventUtils.domLoaded = true;
          callback(event);
        }
      }

      function waitForDomLoaded() {
        if (isDocReady()) {
          removeEvent(doc, "readystatechange", waitForDomLoaded);
          readyHandler();
        }
      }

      function tryScroll() {
        try {
          // If IE is used, use the trick by Diego Perini licensed under MIT by request to the author.
          // http://javascript.nwbox.com/IEContentLoaded/
          doc.documentElement.doScroll("left");
        } catch (ex) {
          Delay.setTimeout(tryScroll);
          return;
        }

        readyHandler();
      }

      // Use W3C method (exclude IE 9,10 - readyState "interactive" became valid only in IE 11)
      if (doc.addEventListener && !(Env.ie && Env.ie < 11)) {
        if (isDocReady()) {
          readyHandler();
        } else {
          addEvent(win, 'DOMContentLoaded', readyHandler);
        }
      } else {
        // Use IE method
        addEvent(doc, "readystatechange", waitForDomLoaded);

        // Wait until we can scroll, when we can the DOM is initialized
        if (doc.documentElement.doScroll && win.self === win.top) {
          tryScroll();
        }
      }

      // Fallback if any of the above methods should fail for some odd reason
      addEvent(win, 'load', readyHandler);
    }

    /**
     * This class enables you to bind/unbind native events to elements and normalize it's behavior across browsers.
     */
    function EventUtils() {
      var self = this, events = {}, count, expando, hasFocusIn, hasMouseEnterLeave, mouseEnterLeave;

      expando = eventExpandoPrefix + (+new Date()).toString(32);
      hasMouseEnterLeave = "onmouseenter" in document.documentElement;
      hasFocusIn = "onfocusin" in document.documentElement;
      mouseEnterLeave = { mouseenter: 'mouseover', mouseleave: 'mouseout' };
      count = 1;

      // State if the DOMContentLoaded was executed or not
      self.domLoaded = false;
      self.events = events;

      /**
       * Executes all event handler callbacks for a specific event.
       *
       * @private
       * @param {Event} evt Event object.
       * @param {String} id Expando id value to look for.
       */
      function executeHandlers(evt, id) {
        var callbackList, i, l, callback, container = events[id];

        callbackList = container && container[evt.type];
        if (callbackList) {
          for (i = 0, l = callbackList.length; i < l; i++) {
            callback = callbackList[i];

            // Check if callback exists might be removed if a unbind is called inside the callback
            if (callback && callback.func.call(callback.scope, evt) === false) {
              evt.preventDefault();
            }

            // Should we stop propagation to immediate listeners
            if (evt.isImmediatePropagationStopped()) {
              return;
            }
          }
        }
      }

      /**
       * Binds a callback to an event on the specified target.
       *
       * @method bind
       * @param {Object} target Target node/window or custom object.
       * @param {String} names Name of the event to bind.
       * @param {function} callback Callback function to execute when the event occurs.
       * @param {Object} scope Scope to call the callback function on, defaults to target.
       * @return {function} Callback function that got bound.
       */
      self.bind = function (target, names, callback, scope) {
        var id, callbackList, i, name, fakeName, nativeHandler, capture, win = window;

        // Native event handler function patches the event and executes the callbacks for the expando
        function defaultNativeHandler(evt) {
          executeHandlers(fix(evt || win.event), id);
        }

        // Don't bind to text nodes or comments
        if (!target || target.nodeType === 3 || target.nodeType === 8) {
          return;
        }

        // Create or get events id for the target
        if (!target[expando]) {
          id = count++;
          target[expando] = id;
          events[id] = {};
        } else {
          id = target[expando];
        }

        // Setup the specified scope or use the target as a default
        scope = scope || target;

        // Split names and bind each event, enables you to bind multiple events with one call
        names = names.split(' ');
        i = names.length;
        while (i--) {
          name = names[i];
          nativeHandler = defaultNativeHandler;
          fakeName = capture = false;

          // Use ready instead of DOMContentLoaded
          if (name === "DOMContentLoaded") {
            name = "ready";
          }

          // DOM is already ready
          if (self.domLoaded && name === "ready" && target.readyState == 'complete') {
            callback.call(scope, fix({ type: name }));
            continue;
          }

          // Handle mouseenter/mouseleaver
          if (!hasMouseEnterLeave) {
            fakeName = mouseEnterLeave[name];

            if (fakeName) {
              nativeHandler = function (evt) {
                var current, related;

                current = evt.currentTarget;
                related = evt.relatedTarget;

                // Check if related is inside the current target if it's not then the event should
                // be ignored since it's a mouseover/mouseout inside the element
                if (related && current.contains) {
                  // Use contains for performance
                  related = current.contains(related);
                } else {
                  while (related && related !== current) {
                    related = related.parentNode;
                  }
                }

                // Fire fake event
                if (!related) {
                  evt = fix(evt || win.event);
                  evt.type = evt.type === 'mouseout' ? 'mouseleave' : 'mouseenter';
                  evt.target = current;
                  executeHandlers(evt, id);
                }
              };
            }
          }

          // Fake bubbling of focusin/focusout
          if (!hasFocusIn && (name === "focusin" || name === "focusout")) {
            capture = true;
            fakeName = name === "focusin" ? "focus" : "blur";
            nativeHandler = function (evt) {
              evt = fix(evt || win.event);
              evt.type = evt.type === 'focus' ? 'focusin' : 'focusout';
              executeHandlers(evt, id);
            };
          }

          // Setup callback list and bind native event
          callbackList = events[id][name];
          if (!callbackList) {
            events[id][name] = callbackList = [{ func: callback, scope: scope }];
            callbackList.fakeName = fakeName;
            callbackList.capture = capture;
            //callbackList.callback = callback;

            // Add the nativeHandler to the callback list so that we can later unbind it
            callbackList.nativeHandler = nativeHandler;

            // Check if the target has native events support

            if (name === "ready") {
              bindOnReady(target, nativeHandler, self);
            } else {
              addEvent(target, fakeName || name, nativeHandler, capture);
            }
          } else {
            if (name === "ready" && self.domLoaded) {
              callback({ type: name });
            } else {
              // If it already has an native handler then just push the callback
              callbackList.push({ func: callback, scope: scope });
            }
          }
        }

        target = callbackList = 0; // Clean memory for IE

        return callback;
      };

      /**
       * Unbinds the specified event by name, name and callback or all events on the target.
       *
       * @method unbind
       * @param {Object} target Target node/window or custom object.
       * @param {String} names Optional event name to unbind.
       * @param {function} callback Optional callback function to unbind.
       * @return {EventUtils} Event utils instance.
       */
      self.unbind = function (target, names, callback) {
        var id, callbackList, i, ci, name, eventMap;

        // Don't bind to text nodes or comments
        if (!target || target.nodeType === 3 || target.nodeType === 8) {
          return self;
        }

        // Unbind event or events if the target has the expando
        id = target[expando];
        if (id) {
          eventMap = events[id];

          // Specific callback
          if (names) {
            names = names.split(' ');
            i = names.length;
            while (i--) {
              name = names[i];
              callbackList = eventMap[name];

              // Unbind the event if it exists in the map
              if (callbackList) {
                // Remove specified callback
                if (callback) {
                  ci = callbackList.length;
                  while (ci--) {
                    if (callbackList[ci].func === callback) {
                      var nativeHandler = callbackList.nativeHandler;
                      var fakeName = callbackList.fakeName, capture = callbackList.capture;

                      // Clone callbackList since unbind inside a callback would otherwise break the handlers loop
                      callbackList = callbackList.slice(0, ci).concat(callbackList.slice(ci + 1));
                      callbackList.nativeHandler = nativeHandler;
                      callbackList.fakeName = fakeName;
                      callbackList.capture = capture;

                      eventMap[name] = callbackList;
                    }
                  }
                }

                // Remove all callbacks if there isn't a specified callback or there is no callbacks left
                if (!callback || callbackList.length === 0) {
                  delete eventMap[name];
                  removeEvent(target, callbackList.fakeName || name, callbackList.nativeHandler, callbackList.capture);
                }
              }
            }
          } else {
            // All events for a specific element
            for (name in eventMap) {
              callbackList = eventMap[name];
              removeEvent(target, callbackList.fakeName || name, callbackList.nativeHandler, callbackList.capture);
            }

            eventMap = {};
          }

          // Check if object is empty, if it isn't then we won't remove the expando map
          for (name in eventMap) {
            return self;
          }

          // Delete event object
          delete events[id];

          // Remove expando from target
          try {
            // IE will fail here since it can't delete properties from window
            delete target[expando];
          } catch (ex) {
            // IE will set it to null
            target[expando] = null;
          }
        }

        return self;
      };

      /**
       * Fires the specified event on the specified target.
       *
       * @method fire
       * @param {Object} target Target node/window or custom object.
       * @param {String} name Event name to fire.
       * @param {Object} args Optional arguments to send to the observers.
       * @return {EventUtils} Event utils instance.
       */
      self.fire = function (target, name, args) {
        var id;

        // Don't bind to text nodes or comments
        if (!target || target.nodeType === 3 || target.nodeType === 8) {
          return self;
        }

        // Build event object by patching the args
        args = fix(null, args);
        args.type = name;
        args.target = target;

        do {
          // Found an expando that means there is listeners to execute
          id = target[expando];
          if (id) {
            executeHandlers(args, id);
          }

          // Walk up the DOM
          target = target.parentNode || target.ownerDocument || target.defaultView || target.parentWindow;
        } while (target && !args.isPropagationStopped());

        return self;
      };

      /**
       * Removes all bound event listeners for the specified target. This will also remove any bound
       * listeners to child nodes within that target.
       *
       * @method clean
       * @param {Object} target Target node/window object.
       * @return {EventUtils} Event utils instance.
       */
      self.clean = function (target) {
        var i, children, unbind = self.unbind;

        // Don't bind to text nodes or comments
        if (!target || target.nodeType === 3 || target.nodeType === 8) {
          return self;
        }

        // Unbind any element on the specified target
        if (target[expando]) {
          unbind(target);
        }

        // Target doesn't have getElementsByTagName it's probably a window object then use it's document to find the children
        if (!target.getElementsByTagName) {
          target = target.document;
        }

        // Remove events from each child element
        if (target && target.getElementsByTagName) {
          unbind(target);

          children = target.getElementsByTagName('*');
          i = children.length;
          while (i--) {
            target = children[i];

            if (target[expando]) {
              unbind(target);
            }
          }
        }

        return self;
      };

      /**
       * Destroys the event object. Call this on IE to remove memory leaks.
       */
      self.destroy = function () {
        events = {};
      };

      // Legacy function for canceling events
      self.cancel = function (e) {
        if (e) {
          e.preventDefault();
          e.stopImmediatePropagation();
        }

        return false;
      };
    }

    EventUtils.Event = new EventUtils();
    EventUtils.Event.bind(window, 'ready', function () { });

    return EventUtils;
  }
);

/**
 * Sizzle.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 *
 * @ignore-file
 */

/*jshint bitwise:false, expr:true, noempty:false, sub:true, eqnull:true, latedef:false, maxlen:255 */
/*eslint-disable */

/**
 * Sizzle CSS Selector Engine v@VERSION
 * http://sizzlejs.com/
 *
 * Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: @DATE
 */
define(
  'tinymce.core.dom.Sizzle',
  [],
  function () {
    var i,
      support,
      Expr,
      getText,
      isXML,
      tokenize,
      compile,
      select,
      outermostContext,
      sortInput,
      hasDuplicate,

      // Local document vars
      setDocument,
      document,
      docElem,
      documentIsHTML,
      rbuggyQSA,
      rbuggyMatches,
      matches,
      contains,

      // Instance-specific data
      expando = "sizzle" + -(new Date()),
      preferredDoc = window.document,
      dirruns = 0,
      done = 0,
      classCache = createCache(),
      tokenCache = createCache(),
      compilerCache = createCache(),
      sortOrder = function (a, b) {
        if (a === b) {
          hasDuplicate = true;
        }
        return 0;
      },

      // General-purpose constants
      strundefined = typeof undefined,
      MAX_NEGATIVE = 1 << 31,

      // Instance methods
      hasOwn = ({}).hasOwnProperty,
      arr = [],
      pop = arr.pop,
      push_native = arr.push,
      push = arr.push,
      slice = arr.slice,
      // Use a stripped-down indexOf if we can't use a native one
      indexOf = arr.indexOf || function (elem) {
        var i = 0,
          len = this.length;
        for (; i < len; i++) {
          if (this[i] === elem) {
            return i;
          }
        }
        return -1;
      },

      booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

      // Regular expressions

      // http://www.w3.org/TR/css3-selectors/#whitespace
      whitespace = "[\\x20\\t\\r\\n\\f]",

      // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
      identifier = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

      // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
      attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
        // Operator (capture 2)
        "*([*^$|!~]?=)" + whitespace +
        // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
        "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
        "*\\]",

      pseudos = ":(" + identifier + ")(?:\\((" +
        // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
        // 1. quoted (capture 3; capture 4 or capture 5)
        "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
        // 2. simple (capture 6)
        "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
        // 3. anything else (capture 2)
        ".*" +
        ")\\)|)",

      // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
      rtrim = new RegExp("^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g"),

      rcomma = new RegExp("^" + whitespace + "*," + whitespace + "*"),
      rcombinators = new RegExp("^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*"),

      rattributeQuotes = new RegExp("=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g"),

      rpseudo = new RegExp(pseudos),
      ridentifier = new RegExp("^" + identifier + "$"),

      matchExpr = {
        "ID": new RegExp("^#(" + identifier + ")"),
        "CLASS": new RegExp("^\\.(" + identifier + ")"),
        "TAG": new RegExp("^(" + identifier + "|[*])"),
        "ATTR": new RegExp("^" + attributes),
        "PSEUDO": new RegExp("^" + pseudos),
        "CHILD": new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
          "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
          "*(\\d+)|))" + whitespace + "*\\)|)", "i"),
        "bool": new RegExp("^(?:" + booleans + ")$", "i"),
        // For use in libraries implementing .is()
        // We use this for POS matching in `select`
        "needsContext": new RegExp("^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
          whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i")
      },

      rinputs = /^(?:input|select|textarea|button)$/i,
      rheader = /^h\d$/i,

      rnative = /^[^{]+\{\s*\[native \w/,

      // Easily-parseable/retrievable ID or TAG or CLASS selectors
      rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

      rsibling = /[+~]/,
      rescape = /'|\\/g,

      // CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
      runescape = new RegExp("\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig"),
      funescape = function (_, escaped, escapedWhitespace) {
        var high = "0x" + escaped - 0x10000;
        // NaN means non-codepoint
        // Support: Firefox<24
        // Workaround erroneous numeric interpretation of +"0x"
        return high !== high || escapedWhitespace ?
          escaped :
          high < 0 ?
            // BMP codepoint
            String.fromCharCode(high + 0x10000) :
            // Supplemental Plane codepoint (surrogate pair)
            String.fromCharCode(high >> 10 | 0xD800, high & 0x3FF | 0xDC00);
      };

    // Optimize for push.apply( _, NodeList )
    try {
      push.apply(
        (arr = slice.call(preferredDoc.childNodes)),
        preferredDoc.childNodes
      );
      // Support: Android<4.0
      // Detect silently failing push.apply
      arr[preferredDoc.childNodes.length].nodeType;
    } catch (e) {
      push = {
        apply: arr.length ?

          // Leverage slice if possible
          function (target, els) {
            push_native.apply(target, slice.call(els));
          } :

          // Support: IE<9
          // Otherwise append directly
          function (target, els) {
            var j = target.length,
              i = 0;
            // Can't trust NodeList.length
            while ((target[j++] = els[i++])) { }
            target.length = j - 1;
          }
      };
    }

    function Sizzle(selector, context, results, seed) {
      var match, elem, m, nodeType,
        // QSA vars
        i, groups, old, nid, newContext, newSelector;

      if ((context ? context.ownerDocument || context : preferredDoc) !== document) {
        setDocument(context);
      }

      context = context || document;
      results = results || [];

      if (!selector || typeof selector !== "string") {
        return results;
      }

      if ((nodeType = context.nodeType) !== 1 && nodeType !== 9) {
        return [];
      }

      if (documentIsHTML && !seed) {

        // Shortcuts
        if ((match = rquickExpr.exec(selector))) {
          // Speed-up: Sizzle("#ID")
          if ((m = match[1])) {
            if (nodeType === 9) {
              elem = context.getElementById(m);
              // Check parentNode to catch when Blackberry 4.6 returns
              // nodes that are no longer in the document (jQuery #6963)
              if (elem && elem.parentNode) {
                // Handle the case where IE, Opera, and Webkit return items
                // by name instead of ID
                if (elem.id === m) {
                  results.push(elem);
                  return results;
                }
              } else {
                return results;
              }
            } else {
              // Context is not a document
              if (context.ownerDocument && (elem = context.ownerDocument.getElementById(m)) &&
                contains(context, elem) && elem.id === m) {
                results.push(elem);
                return results;
              }
            }

            // Speed-up: Sizzle("TAG")
          } else if (match[2]) {
            push.apply(results, context.getElementsByTagName(selector));
            return results;

            // Speed-up: Sizzle(".CLASS")
          } else if ((m = match[3]) && support.getElementsByClassName) {
            push.apply(results, context.getElementsByClassName(m));
            return results;
          }
        }

        // QSA path
        if (support.qsa && (!rbuggyQSA || !rbuggyQSA.test(selector))) {
          nid = old = expando;
          newContext = context;
          newSelector = nodeType === 9 && selector;

          // qSA works strangely on Element-rooted queries
          // We can work around this by specifying an extra ID on the root
          // and working up from there (Thanks to Andrew Dupont for the technique)
          // IE 8 doesn't work on object elements
          if (nodeType === 1 && context.nodeName.toLowerCase() !== "object") {
            groups = tokenize(selector);

            if ((old = context.getAttribute("id"))) {
              nid = old.replace(rescape, "\\$&");
            } else {
              context.setAttribute("id", nid);
            }
            nid = "[id='" + nid + "'] ";

            i = groups.length;
            while (i--) {
              groups[i] = nid + toSelector(groups[i]);
            }
            newContext = rsibling.test(selector) && testContext(context.parentNode) || context;
            newSelector = groups.join(",");
          }

          if (newSelector) {
            try {
              push.apply(results,
                newContext.querySelectorAll(newSelector)
              );
              return results;
            } catch (qsaError) {
            } finally {
              if (!old) {
                context.removeAttribute("id");
              }
            }
          }
        }
      }

      // All others
      return select(selector.replace(rtrim, "$1"), context, results, seed);
    }

    /**
     * Create key-value caches of limited size
     * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
     * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
     * deleting the oldest entry
     */
    function createCache() {
      var keys = [];

      function cache(key, value) {
        // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
        if (keys.push(key + " ") > Expr.cacheLength) {
          // Only keep the most recent entries
          delete cache[keys.shift()];
        }
        return (cache[key + " "] = value);
      }
      return cache;
    }

    /**
     * Mark a function for special use by Sizzle
     * @param {Function} fn The function to mark
     */
    function markFunction(fn) {
      fn[expando] = true;
      return fn;
    }

    /**
     * Support testing using an element
     * @param {Function} fn Passed the created div and expects a boolean result
     */
    function assert(fn) {
      var div = document.createElement("div");

      try {
        return !!fn(div);
      } catch (e) {
        return false;
      } finally {
        // Remove from its parent by default
        if (div.parentNode) {
          div.parentNode.removeChild(div);
        }
        // release memory in IE
        div = null;
      }
    }

    /**
     * Adds the same handler for all of the specified attrs
     * @param {String} attrs Pipe-separated list of attributes
     * @param {Function} handler The method that will be applied
     */
    function addHandle(attrs, handler) {
      var arr = attrs.split("|"),
        i = attrs.length;

      while (i--) {
        Expr.attrHandle[arr[i]] = handler;
      }
    }

    /**
     * Checks document order of two siblings
     * @param {Element} a
     * @param {Element} b
     * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
     */
    function siblingCheck(a, b) {
      var cur = b && a,
        diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
          (~b.sourceIndex || MAX_NEGATIVE) -
          (~a.sourceIndex || MAX_NEGATIVE);

      // Use IE sourceIndex if available on both nodes
      if (diff) {
        return diff;
      }

      // Check if b follows a
      if (cur) {
        while ((cur = cur.nextSibling)) {
          if (cur === b) {
            return -1;
          }
        }
      }

      return a ? 1 : -1;
    }

    /**
     * Returns a function to use in pseudos for input types
     * @param {String} type
     */
    function createInputPseudo(type) {
      return function (elem) {
        var name = elem.nodeName.toLowerCase();
        return name === "input" && elem.type === type;
      };
    }

    /**
     * Returns a function to use in pseudos for buttons
     * @param {String} type
     */
    function createButtonPseudo(type) {
      return function (elem) {
        var name = elem.nodeName.toLowerCase();
        return (name === "input" || name === "button") && elem.type === type;
      };
    }

    /**
     * Returns a function to use in pseudos for positionals
     * @param {Function} fn
     */
    function createPositionalPseudo(fn) {
      return markFunction(function (argument) {
        argument = +argument;
        return markFunction(function (seed, matches) {
          var j,
            matchIndexes = fn([], seed.length, argument),
            i = matchIndexes.length;

          // Match elements found at the specified indexes
          while (i--) {
            if (seed[(j = matchIndexes[i])]) {
              seed[j] = !(matches[j] = seed[j]);
            }
          }
        });
      });
    }

    /**
     * Checks a node for validity as a Sizzle context
     * @param {Element|Object=} context
     * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
     */
    function testContext(context) {
      return context && typeof context.getElementsByTagName !== strundefined && context;
    }

    // Expose support vars for convenience
    support = Sizzle.support = {};

    /**
     * Detects XML nodes
     * @param {Element|Object} elem An element or a document
     * @returns {Boolean} True iff elem is a non-HTML XML node
     */
    isXML = Sizzle.isXML = function (elem) {
      // documentElement is verified for cases where it doesn't yet exist
      // (such as loading iframes in IE - #4833)
      var documentElement = elem && (elem.ownerDocument || elem).documentElement;
      return documentElement ? documentElement.nodeName !== "HTML" : false;
    };

    /**
     * Sets document-related variables once based on the current document
     * @param {Element|Object} [doc] An element or document object to use to set the document
     * @returns {Object} Returns the current document
     */
    setDocument = Sizzle.setDocument = function (node) {
      var hasCompare,
        doc = node ? node.ownerDocument || node : preferredDoc,
        parent = doc.defaultView;

      function getTop(win) {
        // Edge throws a lovely Object expected if you try to get top on a detached reference see #2642
        try {
          return win.top;
        } catch (ex) {
          // Ignore
        }

        return null;
      }

      // If no document and documentElement is available, return
      if (doc === document || doc.nodeType !== 9 || !doc.documentElement) {
        return document;
      }

      // Set our document
      document = doc;
      docElem = doc.documentElement;

      // Support tests
      documentIsHTML = !isXML(doc);

      // Support: IE>8
      // If iframe document is assigned to "document" variable and if iframe has been reloaded,
      // IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
      // IE6-8 do not support the defaultView property so parent will be undefined
      if (parent && parent !== getTop(parent)) {
        // IE11 does not have attachEvent, so all must suffer
        if (parent.addEventListener) {
          parent.addEventListener("unload", function () {
            setDocument();
          }, false);
        } else if (parent.attachEvent) {
          parent.attachEvent("onunload", function () {
            setDocument();
          });
        }
      }

      /* Attributes
      ---------------------------------------------------------------------- */

      // Support: IE<8
      // Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)
      support.attributes = assert(function (div) {
        div.className = "i";
        return !div.getAttribute("className");
      });

      /* getElement(s)By*
      ---------------------------------------------------------------------- */

      // Check if getElementsByTagName("*") returns only elements
      support.getElementsByTagName = assert(function (div) {
        div.appendChild(doc.createComment(""));
        return !div.getElementsByTagName("*").length;
      });

      // Support: IE<9
      support.getElementsByClassName = rnative.test(doc.getElementsByClassName);

      // Support: IE<10
      // Check if getElementById returns elements by name
      // The broken getElementById methods don't pick up programatically-set names,
      // so use a roundabout getElementsByName test
      support.getById = assert(function (div) {
        docElem.appendChild(div).id = expando;
        return !doc.getElementsByName || !doc.getElementsByName(expando).length;
      });

      // ID find and filter
      if (support.getById) {
        Expr.find["ID"] = function (id, context) {
          if (typeof context.getElementById !== strundefined && documentIsHTML) {
            var m = context.getElementById(id);
            // Check parentNode to catch when Blackberry 4.6 returns
            // nodes that are no longer in the document #6963
            return m && m.parentNode ? [m] : [];
          }
        };
        Expr.filter["ID"] = function (id) {
          var attrId = id.replace(runescape, funescape);
          return function (elem) {
            return elem.getAttribute("id") === attrId;
          };
        };
      } else {
        // Support: IE6/7
        // getElementById is not reliable as a find shortcut
        delete Expr.find["ID"];

        Expr.filter["ID"] = function (id) {
          var attrId = id.replace(runescape, funescape);
          return function (elem) {
            var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
            return node && node.value === attrId;
          };
        };
      }

      // Tag
      Expr.find["TAG"] = support.getElementsByTagName ?
        function (tag, context) {
          if (typeof context.getElementsByTagName !== strundefined) {
            return context.getElementsByTagName(tag);
          }
        } :
        function (tag, context) {
          var elem,
            tmp = [],
            i = 0,
            results = context.getElementsByTagName(tag);

          // Filter out possible comments
          if (tag === "*") {
            while ((elem = results[i++])) {
              if (elem.nodeType === 1) {
                tmp.push(elem);
              }
            }

            return tmp;
          }
          return results;
        };

      // Class
      Expr.find["CLASS"] = support.getElementsByClassName && function (className, context) {
        if (documentIsHTML) {
          return context.getElementsByClassName(className);
        }
      };

      /* QSA/matchesSelector
      ---------------------------------------------------------------------- */

      // QSA and matchesSelector support

      // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
      rbuggyMatches = [];

      // qSa(:focus) reports false when true (Chrome 21)
      // We allow this because of a bug in IE8/9 that throws an error
      // whenever `document.activeElement` is accessed on an iframe
      // So, we allow :focus to pass through QSA all the time to avoid the IE error
      // See http://bugs.jquery.com/ticket/13378
      rbuggyQSA = [];

      if ((support.qsa = rnative.test(doc.querySelectorAll))) {
        // Build QSA regex
        // Regex strategy adopted from Diego Perini
        assert(function (div) {
          // Select is set to empty string on purpose
          // This is to test IE's treatment of not explicitly
          // setting a boolean content attribute,
          // since its presence should be enough
          // http://bugs.jquery.com/ticket/12359
          div.innerHTML = "<select msallowcapture=''><option selected=''></option></select>";

          // Support: IE8, Opera 11-12.16
          // Nothing should be selected when empty strings follow ^= or $= or *=
          // The test attribute must be unknown in Opera but "safe" for WinRT
          // http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
          if (div.querySelectorAll("[msallowcapture^='']").length) {
            rbuggyQSA.push("[*^$]=" + whitespace + "*(?:''|\"\")");
          }

          // Support: IE8
          // Boolean attributes and "value" are not treated correctly
          if (!div.querySelectorAll("[selected]").length) {
            rbuggyQSA.push("\\[" + whitespace + "*(?:value|" + booleans + ")");
          }

          // Webkit/Opera - :checked should return selected option elements
          // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
          // IE8 throws error here and will not see later tests
          if (!div.querySelectorAll(":checked").length) {
            rbuggyQSA.push(":checked");
          }
        });

        assert(function (div) {
          // Support: Windows 8 Native Apps
          // The type and name attributes are restricted during .innerHTML assignment
          var input = doc.createElement("input");
          input.setAttribute("type", "hidden");
          div.appendChild(input).setAttribute("name", "D");

          // Support: IE8
          // Enforce case-sensitivity of name attribute
          if (div.querySelectorAll("[name=d]").length) {
            rbuggyQSA.push("name" + whitespace + "*[*^$|!~]?=");
          }

          // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
          // IE8 throws error here and will not see later tests
          if (!div.querySelectorAll(":enabled").length) {
            rbuggyQSA.push(":enabled", ":disabled");
          }

          // Opera 10-11 does not throw on post-comma invalid pseudos
          div.querySelectorAll("*,:x");
          rbuggyQSA.push(",.*:");
        });
      }

      if ((support.matchesSelector = rnative.test((matches = docElem.matches ||
        docElem.webkitMatchesSelector ||
        docElem.mozMatchesSelector ||
        docElem.oMatchesSelector ||
        docElem.msMatchesSelector)))) {

        assert(function (div) {
          // Check to see if it's possible to do matchesSelector
          // on a disconnected node (IE 9)
          support.disconnectedMatch = matches.call(div, "div");

          // This should fail with an exception
          // Gecko does not error, returns false instead
          matches.call(div, "[s!='']:x");
          rbuggyMatches.push("!=", pseudos);
        });
      }

      rbuggyQSA = rbuggyQSA.length && new RegExp(rbuggyQSA.join("|"));
      rbuggyMatches = rbuggyMatches.length && new RegExp(rbuggyMatches.join("|"));

      /* Contains
      ---------------------------------------------------------------------- */
      hasCompare = rnative.test(docElem.compareDocumentPosition);

      // Element contains another
      // Purposefully does not implement inclusive descendent
      // As in, an element does not contain itself
      contains = hasCompare || rnative.test(docElem.contains) ?
        function (a, b) {
          var adown = a.nodeType === 9 ? a.documentElement : a,
            bup = b && b.parentNode;
          return a === bup || !!(bup && bup.nodeType === 1 && (
            adown.contains ?
              adown.contains(bup) :
              a.compareDocumentPosition && a.compareDocumentPosition(bup) & 16
          ));
        } :
        function (a, b) {
          if (b) {
            while ((b = b.parentNode)) {
              if (b === a) {
                return true;
              }
            }
          }
          return false;
        };

      /* Sorting
      ---------------------------------------------------------------------- */

      // Document order sorting
      sortOrder = hasCompare ?
        function (a, b) {

          // Flag for duplicate removal
          if (a === b) {
            hasDuplicate = true;
            return 0;
          }

          // Sort on method existence if only one input has compareDocumentPosition
          var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
          if (compare) {
            return compare;
          }

          // Calculate position if both inputs belong to the same document
          compare = (a.ownerDocument || a) === (b.ownerDocument || b) ?
            a.compareDocumentPosition(b) :

            // Otherwise we know they are disconnected
            1;

          // Disconnected nodes
          if (compare & 1 ||
            (!support.sortDetached && b.compareDocumentPosition(a) === compare)) {

            // Choose the first element that is related to our preferred document
            if (a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a)) {
              return -1;
            }
            if (b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b)) {
              return 1;
            }

            // Maintain original order
            return sortInput ?
              (indexOf.call(sortInput, a) - indexOf.call(sortInput, b)) :
              0;
          }

          return compare & 4 ? -1 : 1;
        } :
        function (a, b) {
          // Exit early if the nodes are identical
          if (a === b) {
            hasDuplicate = true;
            return 0;
          }

          var cur,
            i = 0,
            aup = a.parentNode,
            bup = b.parentNode,
            ap = [a],
            bp = [b];

          // Parentless nodes are either documents or disconnected
          if (!aup || !bup) {
            return a === doc ? -1 :
              b === doc ? 1 :
                aup ? -1 :
                  bup ? 1 :
                    sortInput ?
                      (indexOf.call(sortInput, a) - indexOf.call(sortInput, b)) :
                      0;

            // If the nodes are siblings, we can do a quick check
          } else if (aup === bup) {
            return siblingCheck(a, b);
          }

          // Otherwise we need full lists of their ancestors for comparison
          cur = a;
          while ((cur = cur.parentNode)) {
            ap.unshift(cur);
          }
          cur = b;
          while ((cur = cur.parentNode)) {
            bp.unshift(cur);
          }

          // Walk down the tree looking for a discrepancy
          while (ap[i] === bp[i]) {
            i++;
          }

          return i ?
            // Do a sibling check if the nodes have a common ancestor
            siblingCheck(ap[i], bp[i]) :

            // Otherwise nodes in our document sort first
            ap[i] === preferredDoc ? -1 :
              bp[i] === preferredDoc ? 1 :
                0;
        };

      return doc;
    };

    Sizzle.matches = function (expr, elements) {
      return Sizzle(expr, null, null, elements);
    };

    Sizzle.matchesSelector = function (elem, expr) {
      // Set document vars if needed
      if ((elem.ownerDocument || elem) !== document) {
        setDocument(elem);
      }

      // Make sure that attribute selectors are quoted
      expr = expr.replace(rattributeQuotes, "='$1']");

      if (support.matchesSelector && documentIsHTML &&
        (!rbuggyMatches || !rbuggyMatches.test(expr)) &&
        (!rbuggyQSA || !rbuggyQSA.test(expr))) {

        try {
          var ret = matches.call(elem, expr);

          // IE 9's matchesSelector returns false on disconnected nodes
          if (ret || support.disconnectedMatch ||
            // As well, disconnected nodes are said to be in a document
            // fragment in IE 9
            elem.document && elem.document.nodeType !== 11) {
            return ret;
          }
        } catch (e) { }
      }

      return Sizzle(expr, document, null, [elem]).length > 0;
    };

    Sizzle.contains = function (context, elem) {
      // Set document vars if needed
      if ((context.ownerDocument || context) !== document) {
        setDocument(context);
      }
      return contains(context, elem);
    };

    Sizzle.attr = function (elem, name) {
      // Set document vars if needed
      if ((elem.ownerDocument || elem) !== document) {
        setDocument(elem);
      }

      var fn = Expr.attrHandle[name.toLowerCase()],
        // Don't get fooled by Object.prototype properties (jQuery #13807)
        val = fn && hasOwn.call(Expr.attrHandle, name.toLowerCase()) ?
          fn(elem, name, !documentIsHTML) :
          undefined;

      return val !== undefined ?
        val :
        support.attributes || !documentIsHTML ?
          elem.getAttribute(name) :
          (val = elem.getAttributeNode(name)) && val.specified ?
            val.value :
            null;
    };

    Sizzle.error = function (msg) {
      throw new Error("Syntax error, unrecognized expression: " + msg);
    };

    /**
     * Document sorting and removing duplicates
     * @param {ArrayLike} results
     */
    Sizzle.uniqueSort = function (results) {
      var elem,
        duplicates = [],
        j = 0,
        i = 0;

      // Unless we *know* we can detect duplicates, assume their presence
      hasDuplicate = !support.detectDuplicates;
      sortInput = !support.sortStable && results.slice(0);
      results.sort(sortOrder);

      if (hasDuplicate) {
        while ((elem = results[i++])) {
          if (elem === results[i]) {
            j = duplicates.push(i);
          }
        }
        while (j--) {
          results.splice(duplicates[j], 1);
        }
      }

      // Clear input after sorting to release objects
      // See https://github.com/jquery/sizzle/pull/225
      sortInput = null;

      return results;
    };

    /**
     * Utility function for retrieving the text value of an array of DOM nodes
     * @param {Array|Element} elem
     */
    getText = Sizzle.getText = function (elem) {
      var node,
        ret = "",
        i = 0,
        nodeType = elem.nodeType;

      if (!nodeType) {
        // If no nodeType, this is expected to be an array
        while ((node = elem[i++])) {
          // Do not traverse comment nodes
          ret += getText(node);
        }
      } else if (nodeType === 1 || nodeType === 9 || nodeType === 11) {
        // Use textContent for elements
        // innerText usage removed for consistency of new lines (jQuery #11153)
        if (typeof elem.textContent === "string") {
          return elem.textContent;
        } else {
          // Traverse its children
          for (elem = elem.firstChild; elem; elem = elem.nextSibling) {
            ret += getText(elem);
          }
        }
      } else if (nodeType === 3 || nodeType === 4) {
        return elem.nodeValue;
      }
      // Do not include comment or processing instruction nodes

      return ret;
    };

    Expr = Sizzle.selectors = {

      // Can be adjusted by the user
      cacheLength: 50,

      createPseudo: markFunction,

      match: matchExpr,

      attrHandle: {},

      find: {},

      relative: {
        ">": { dir: "parentNode", first: true },
        " ": { dir: "parentNode" },
        "+": { dir: "previousSibling", first: true },
        "~": { dir: "previousSibling" }
      },

      preFilter: {
        "ATTR": function (match) {
          match[1] = match[1].replace(runescape, funescape);

          // Move the given value to match[3] whether quoted or unquoted
          match[3] = (match[3] || match[4] || match[5] || "").replace(runescape, funescape);

          if (match[2] === "~=") {
            match[3] = " " + match[3] + " ";
          }

          return match.slice(0, 4);
        },

        "CHILD": function (match) {
          /* matches from matchExpr["CHILD"]
            1 type (only|nth|...)
            2 what (child|of-type)
            3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
            4 xn-component of xn+y argument ([+-]?\d*n|)
            5 sign of xn-component
            6 x of xn-component
            7 sign of y-component
            8 y of y-component
          */
          match[1] = match[1].toLowerCase();

          if (match[1].slice(0, 3) === "nth") {
            // nth-* requires argument
            if (!match[3]) {
              Sizzle.error(match[0]);
            }

            // numeric x and y parameters for Expr.filter.CHILD
            // remember that false/true cast respectively to 0/1
            match[4] = +(match[4] ? match[5] + (match[6] || 1) : 2 * (match[3] === "even" || match[3] === "odd"));
            match[5] = +((match[7] + match[8]) || match[3] === "odd");

            // other types prohibit arguments
          } else if (match[3]) {
            Sizzle.error(match[0]);
          }

          return match;
        },

        "PSEUDO": function (match) {
          var excess,
            unquoted = !match[6] && match[2];

          if (matchExpr["CHILD"].test(match[0])) {
            return null;
          }

          // Accept quoted arguments as-is
          if (match[3]) {
            match[2] = match[4] || match[5] || "";

            // Strip excess characters from unquoted arguments
          } else if (unquoted && rpseudo.test(unquoted) &&
            // Get excess from tokenize (recursively)
            (excess = tokenize(unquoted, true)) &&
            // advance to the next closing parenthesis
            (excess = unquoted.indexOf(")", unquoted.length - excess) - unquoted.length)) {

            // excess is a negative index
            match[0] = match[0].slice(0, excess);
            match[2] = unquoted.slice(0, excess);
          }

          // Return only captures needed by the pseudo filter method (type and argument)
          return match.slice(0, 3);
        }
      },

      filter: {

        "TAG": function (nodeNameSelector) {
          var nodeName = nodeNameSelector.replace(runescape, funescape).toLowerCase();
          return nodeNameSelector === "*" ?
            function () { return true; } :
            function (elem) {
              return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
            };
        },

        "CLASS": function (className) {
          var pattern = classCache[className + " "];

          return pattern ||
            (pattern = new RegExp("(^|" + whitespace + ")" + className + "(" + whitespace + "|$)")) &&
            classCache(className, function (elem) {
              return pattern.test(typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "");
            });
        },

        "ATTR": function (name, operator, check) {
          return function (elem) {
            var result = Sizzle.attr(elem, name);

            if (result == null) {
              return operator === "!=";
            }
            if (!operator) {
              return true;
            }

            result += "";

            return operator === "=" ? result === check :
              operator === "!=" ? result !== check :
                operator === "^=" ? check && result.indexOf(check) === 0 :
                  operator === "*=" ? check && result.indexOf(check) > -1 :
                    operator === "$=" ? check && result.slice(-check.length) === check :
                      operator === "~=" ? (" " + result + " ").indexOf(check) > -1 :
                        operator === "|=" ? result === check || result.slice(0, check.length + 1) === check + "-" :
                          false;
          };
        },

        "CHILD": function (type, what, argument, first, last) {
          var simple = type.slice(0, 3) !== "nth",
            forward = type.slice(-4) !== "last",
            ofType = what === "of-type";

          return first === 1 && last === 0 ?

            // Shortcut for :nth-*(n)
            function (elem) {
              return !!elem.parentNode;
            } :

            function (elem, context, xml) {
              var cache, outerCache, node, diff, nodeIndex, start,
                dir = simple !== forward ? "nextSibling" : "previousSibling",
                parent = elem.parentNode,
                name = ofType && elem.nodeName.toLowerCase(),
                useCache = !xml && !ofType;

              if (parent) {

                // :(first|last|only)-(child|of-type)
                if (simple) {
                  while (dir) {
                    node = elem;
                    while ((node = node[dir])) {
                      if (ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1) {
                        return false;
                      }
                    }
                    // Reverse direction for :only-* (if we haven't yet done so)
                    start = dir = type === "only" && !start && "nextSibling";
                  }
                  return true;
                }

                start = [forward ? parent.firstChild : parent.lastChild];

                // non-xml :nth-child(...) stores cache data on `parent`
                if (forward && useCache) {
                  // Seek `elem` from a previously-cached index
                  outerCache = parent[expando] || (parent[expando] = {});
                  cache = outerCache[type] || [];
                  nodeIndex = cache[0] === dirruns && cache[1];
                  diff = cache[0] === dirruns && cache[2];
                  node = nodeIndex && parent.childNodes[nodeIndex];

                  while ((node = ++nodeIndex && node && node[dir] ||

                    // Fallback to seeking `elem` from the start
                    (diff = nodeIndex = 0) || start.pop())) {

                    // When found, cache indexes on `parent` and break
                    if (node.nodeType === 1 && ++diff && node === elem) {
                      outerCache[type] = [dirruns, nodeIndex, diff];
                      break;
                    }
                  }

                  // Use previously-cached element index if available
                } else if (useCache && (cache = (elem[expando] || (elem[expando] = {}))[type]) && cache[0] === dirruns) {
                  diff = cache[1];

                  // xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
                } else {
                  // Use the same loop as above to seek `elem` from the start
                  while ((node = ++nodeIndex && node && node[dir] ||
                    (diff = nodeIndex = 0) || start.pop())) {

                    if ((ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1) && ++diff) {
                      // Cache the index of each encountered element
                      if (useCache) {
                        (node[expando] || (node[expando] = {}))[type] = [dirruns, diff];
                      }

                      if (node === elem) {
                        break;
                      }
                    }
                  }
                }

                // Incorporate the offset, then check against cycle size
                diff -= last;
                return diff === first || (diff % first === 0 && diff / first >= 0);
              }
            };
        },

        "PSEUDO": function (pseudo, argument) {
          // pseudo-class names are case-insensitive
          // http://www.w3.org/TR/selectors/#pseudo-classes
          // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
          // Remember that setFilters inherits from pseudos
          var args,
            fn = Expr.pseudos[pseudo] || Expr.setFilters[pseudo.toLowerCase()] ||
              Sizzle.error("unsupported pseudo: " + pseudo);

          // The user may use createPseudo to indicate that
          // arguments are needed to create the filter function
          // just as Sizzle does
          if (fn[expando]) {
            return fn(argument);
          }

          // But maintain support for old signatures
          if (fn.length > 1) {
            args = [pseudo, pseudo, "", argument];
            return Expr.setFilters.hasOwnProperty(pseudo.toLowerCase()) ?
              markFunction(function (seed, matches) {
                var idx,
                  matched = fn(seed, argument),
                  i = matched.length;
                while (i--) {
                  idx = indexOf.call(seed, matched[i]);
                  seed[idx] = !(matches[idx] = matched[i]);
                }
              }) :
              function (elem) {
                return fn(elem, 0, args);
              };
          }

          return fn;
        }
      },

      pseudos: {
        // Potentially complex pseudos
        "not": markFunction(function (selector) {
          // Trim the selector passed to compile
          // to avoid treating leading and trailing
          // spaces as combinators
          var input = [],
            results = [],
            matcher = compile(selector.replace(rtrim, "$1"));

          return matcher[expando] ?
            markFunction(function (seed, matches, context, xml) {
              var elem,
                unmatched = matcher(seed, null, xml, []),
                i = seed.length;

              // Match elements unmatched by `matcher`
              while (i--) {
                if ((elem = unmatched[i])) {
                  seed[i] = !(matches[i] = elem);
                }
              }
            }) :
            function (elem, context, xml) {
              input[0] = elem;
              matcher(input, null, xml, results);
              return !results.pop();
            };
        }),

        "has": markFunction(function (selector) {
          return function (elem) {
            return Sizzle(selector, elem).length > 0;
          };
        }),

        "contains": markFunction(function (text) {
          text = text.replace(runescape, funescape);
          return function (elem) {
            return (elem.textContent || elem.innerText || getText(elem)).indexOf(text) > -1;
          };
        }),

        // "Whether an element is represented by a :lang() selector
        // is based solely on the element's language value
        // being equal to the identifier C,
        // or beginning with the identifier C immediately followed by "-".
        // The matching of C against the element's language value is performed case-insensitively.
        // The identifier C does not have to be a valid language name."
        // http://www.w3.org/TR/selectors/#lang-pseudo
        "lang": markFunction(function (lang) {
          // lang value must be a valid identifier
          if (!ridentifier.test(lang || "")) {
            Sizzle.error("unsupported lang: " + lang);
          }
          lang = lang.replace(runescape, funescape).toLowerCase();
          return function (elem) {
            var elemLang;
            do {
              if ((elemLang = documentIsHTML ?
                elem.lang :
                elem.getAttribute("xml:lang") || elem.getAttribute("lang"))) {

                elemLang = elemLang.toLowerCase();
                return elemLang === lang || elemLang.indexOf(lang + "-") === 0;
              }
            } while ((elem = elem.parentNode) && elem.nodeType === 1);
            return false;
          };
        }),

        // Miscellaneous
        "target": function (elem) {
          var hash = window.location && window.location.hash;
          return hash && hash.slice(1) === elem.id;
        },

        "root": function (elem) {
          return elem === docElem;
        },

        "focus": function (elem) {
          return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
        },

        // Boolean properties
        "enabled": function (elem) {
          return elem.disabled === false;
        },

        "disabled": function (elem) {
          return elem.disabled === true;
        },

        "checked": function (elem) {
          // In CSS3, :checked should return both checked and selected elements
          // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
          var nodeName = elem.nodeName.toLowerCase();
          return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
        },

        "selected": function (elem) {
          // Accessing this property makes selected-by-default
          // options in Safari work properly
          if (elem.parentNode) {
            elem.parentNode.selectedIndex;
          }

          return elem.selected === true;
        },

        // Contents
        "empty": function (elem) {
          // http://www.w3.org/TR/selectors/#empty-pseudo
          // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
          //   but not by others (comment: 8; processing instruction: 7; etc.)
          // nodeType < 6 works because attributes (2) do not appear as children
          for (elem = elem.firstChild; elem; elem = elem.nextSibling) {
            if (elem.nodeType < 6) {
              return false;
            }
          }
          return true;
        },

        "parent": function (elem) {
          return !Expr.pseudos["empty"](elem);
        },

        // Element/input types
        "header": function (elem) {
          return rheader.test(elem.nodeName);
        },

        "input": function (elem) {
          return rinputs.test(elem.nodeName);
        },

        "button": function (elem) {
          var name = elem.nodeName.toLowerCase();
          return name === "input" && elem.type === "button" || name === "button";
        },

        "text": function (elem) {
          var attr;
          return elem.nodeName.toLowerCase() === "input" &&
            elem.type === "text" &&

            // Support: IE<8
            // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
            ((attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text");
        },

        // Position-in-collection
        "first": createPositionalPseudo(function () {
          return [0];
        }),

        "last": createPositionalPseudo(function (matchIndexes, length) {
          return [length - 1];
        }),

        "eq": createPositionalPseudo(function (matchIndexes, length, argument) {
          return [argument < 0 ? argument + length : argument];
        }),

        "even": createPositionalPseudo(function (matchIndexes, length) {
          var i = 0;
          for (; i < length; i += 2) {
            matchIndexes.push(i);
          }
          return matchIndexes;
        }),

        "odd": createPositionalPseudo(function (matchIndexes, length) {
          var i = 1;
          for (; i < length; i += 2) {
            matchIndexes.push(i);
          }
          return matchIndexes;
        }),

        "lt": createPositionalPseudo(function (matchIndexes, length, argument) {
          var i = argument < 0 ? argument + length : argument;
          for (; --i >= 0;) {
            matchIndexes.push(i);
          }
          return matchIndexes;
        }),

        "gt": createPositionalPseudo(function (matchIndexes, length, argument) {
          var i = argument < 0 ? argument + length : argument;
          for (; ++i < length;) {
            matchIndexes.push(i);
          }
          return matchIndexes;
        })
      }
    };

    Expr.pseudos["nth"] = Expr.pseudos["eq"];

    // Add button/input type pseudos
    for (i in { radio: true, checkbox: true, file: true, password: true, image: true }) {
      Expr.pseudos[i] = createInputPseudo(i);
    }
    for (i in { submit: true, reset: true }) {
      Expr.pseudos[i] = createButtonPseudo(i);
    }

    // Easy API for creating new setFilters
    function setFilters() { }
    setFilters.prototype = Expr.filters = Expr.pseudos;
    Expr.setFilters = new setFilters();

    tokenize = Sizzle.tokenize = function (selector, parseOnly) {
      var matched, match, tokens, type,
        soFar, groups, preFilters,
        cached = tokenCache[selector + " "];

      if (cached) {
        return parseOnly ? 0 : cached.slice(0);
      }

      soFar = selector;
      groups = [];
      preFilters = Expr.preFilter;

      while (soFar) {

        // Comma and first run
        if (!matched || (match = rcomma.exec(soFar))) {
          if (match) {
            // Don't consume trailing commas as valid
            soFar = soFar.slice(match[0].length) || soFar;
          }
          groups.push((tokens = []));
        }

        matched = false;

        // Combinators
        if ((match = rcombinators.exec(soFar))) {
          matched = match.shift();
          tokens.push({
            value: matched,
            // Cast descendant combinators to space
            type: match[0].replace(rtrim, " ")
          });
          soFar = soFar.slice(matched.length);
        }

        // Filters
        for (type in Expr.filter) {
          if ((match = matchExpr[type].exec(soFar)) && (!preFilters[type] ||
            (match = preFilters[type](match)))) {
            matched = match.shift();
            tokens.push({
              value: matched,
              type: type,
              matches: match
            });
            soFar = soFar.slice(matched.length);
          }
        }

        if (!matched) {
          break;
        }
      }

      // Return the length of the invalid excess
      // if we're just parsing
      // Otherwise, throw an error or return tokens
      return parseOnly ?
        soFar.length :
        soFar ?
          Sizzle.error(selector) :
          // Cache the tokens
          tokenCache(selector, groups).slice(0);
    };

    function toSelector(tokens) {
      var i = 0,
        len = tokens.length,
        selector = "";
      for (; i < len; i++) {
        selector += tokens[i].value;
      }
      return selector;
    }

    function addCombinator(matcher, combinator, base) {
      var dir = combinator.dir,
        checkNonElements = base && dir === "parentNode",
        doneName = done++;

      return combinator.first ?
        // Check against closest ancestor/preceding element
        function (elem, context, xml) {
          while ((elem = elem[dir])) {
            if (elem.nodeType === 1 || checkNonElements) {
              return matcher(elem, context, xml);
            }
          }
        } :

        // Check against all ancestor/preceding elements
        function (elem, context, xml) {
          var oldCache, outerCache,
            newCache = [dirruns, doneName];

          // We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
          if (xml) {
            while ((elem = elem[dir])) {
              if (elem.nodeType === 1 || checkNonElements) {
                if (matcher(elem, context, xml)) {
                  return true;
                }
              }
            }
          } else {
            while ((elem = elem[dir])) {
              if (elem.nodeType === 1 || checkNonElements) {
                outerCache = elem[expando] || (elem[expando] = {});
                if ((oldCache = outerCache[dir]) &&
                  oldCache[0] === dirruns && oldCache[1] === doneName) {

                  // Assign to newCache so results back-propagate to previous elements
                  return (newCache[2] = oldCache[2]);
                } else {
                  // Reuse newcache so results back-propagate to previous elements
                  outerCache[dir] = newCache;

                  // A match means we're done; a fail means we have to keep checking
                  if ((newCache[2] = matcher(elem, context, xml))) {
                    return true;
                  }
                }
              }
            }
          }
        };
    }

    function elementMatcher(matchers) {
      return matchers.length > 1 ?
        function (elem, context, xml) {
          var i = matchers.length;
          while (i--) {
            if (!matchers[i](elem, context, xml)) {
              return false;
            }
          }
          return true;
        } :
        matchers[0];
    }

    function multipleContexts(selector, contexts, results) {
      var i = 0,
        len = contexts.length;
      for (; i < len; i++) {
        Sizzle(selector, contexts[i], results);
      }
      return results;
    }

    function condense(unmatched, map, filter, context, xml) {
      var elem,
        newUnmatched = [],
        i = 0,
        len = unmatched.length,
        mapped = map != null;

      for (; i < len; i++) {
        if ((elem = unmatched[i])) {
          if (!filter || filter(elem, context, xml)) {
            newUnmatched.push(elem);
            if (mapped) {
              map.push(i);
            }
          }
        }
      }

      return newUnmatched;
    }

    function setMatcher(preFilter, selector, matcher, postFilter, postFinder, postSelector) {
      if (postFilter && !postFilter[expando]) {
        postFilter = setMatcher(postFilter);
      }
      if (postFinder && !postFinder[expando]) {
        postFinder = setMatcher(postFinder, postSelector);
      }
      return markFunction(function (seed, results, context, xml) {
        var temp, i, elem,
          preMap = [],
          postMap = [],
          preexisting = results.length,

          // Get initial elements from seed or context
          elems = seed || multipleContexts(selector || "*", context.nodeType ? [context] : context, []),

          // Prefilter to get matcher input, preserving a map for seed-results synchronization
          matcherIn = preFilter && (seed || !selector) ?
            condense(elems, preMap, preFilter, context, xml) :
            elems,

          matcherOut = matcher ?
            // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
            postFinder || (seed ? preFilter : preexisting || postFilter) ?

              // ...intermediate processing is necessary
              [] :

              // ...otherwise use results directly
              results :
            matcherIn;

        // Find primary matches
        if (matcher) {
          matcher(matcherIn, matcherOut, context, xml);
        }

        // Apply postFilter
        if (postFilter) {
          temp = condense(matcherOut, postMap);
          postFilter(temp, [], context, xml);

          // Un-match failing elements by moving them back to matcherIn
          i = temp.length;
          while (i--) {
            if ((elem = temp[i])) {
              matcherOut[postMap[i]] = !(matcherIn[postMap[i]] = elem);
            }
          }
        }

        if (seed) {
          if (postFinder || preFilter) {
            if (postFinder) {
              // Get the final matcherOut by condensing this intermediate into postFinder contexts
              temp = [];
              i = matcherOut.length;
              while (i--) {
                if ((elem = matcherOut[i])) {
                  // Restore matcherIn since elem is not yet a final match
                  temp.push((matcherIn[i] = elem));
                }
              }
              postFinder(null, (matcherOut = []), temp, xml);
            }

            // Move matched elements from seed to results to keep them synchronized
            i = matcherOut.length;
            while (i--) {
              if ((elem = matcherOut[i]) &&
                (temp = postFinder ? indexOf.call(seed, elem) : preMap[i]) > -1) {

                seed[temp] = !(results[temp] = elem);
              }
            }
          }

          // Add elements to results, through postFinder if defined
        } else {
          matcherOut = condense(
            matcherOut === results ?
              matcherOut.splice(preexisting, matcherOut.length) :
              matcherOut
          );
          if (postFinder) {
            postFinder(null, results, matcherOut, xml);
          } else {
            push.apply(results, matcherOut);
          }
        }
      });
    }

    function matcherFromTokens(tokens) {
      var checkContext, matcher, j,
        len = tokens.length,
        leadingRelative = Expr.relative[tokens[0].type],
        implicitRelative = leadingRelative || Expr.relative[" "],
        i = leadingRelative ? 1 : 0,

        // The foundational matcher ensures that elements are reachable from top-level context(s)
        matchContext = addCombinator(function (elem) {
          return elem === checkContext;
        }, implicitRelative, true),
        matchAnyContext = addCombinator(function (elem) {
          return indexOf.call(checkContext, elem) > -1;
        }, implicitRelative, true),
        matchers = [function (elem, context, xml) {
          return (!leadingRelative && (xml || context !== outermostContext)) || (
            (checkContext = context).nodeType ?
              matchContext(elem, context, xml) :
              matchAnyContext(elem, context, xml));
        }];

      for (; i < len; i++) {
        if ((matcher = Expr.relative[tokens[i].type])) {
          matchers = [addCombinator(elementMatcher(matchers), matcher)];
        } else {
          matcher = Expr.filter[tokens[i].type].apply(null, tokens[i].matches);

          // Return special upon seeing a positional matcher
          if (matcher[expando]) {
            // Find the next relative operator (if any) for proper handling
            j = ++i;
            for (; j < len; j++) {
              if (Expr.relative[tokens[j].type]) {
                break;
              }
            }
            return setMatcher(
              i > 1 && elementMatcher(matchers),
              i > 1 && toSelector(
                // If the preceding token was a descendant combinator, insert an implicit any-element `*`
                tokens.slice(0, i - 1).concat({ value: tokens[i - 2].type === " " ? "*" : "" })
              ).replace(rtrim, "$1"),
              matcher,
              i < j && matcherFromTokens(tokens.slice(i, j)),
              j < len && matcherFromTokens((tokens = tokens.slice(j))),
              j < len && toSelector(tokens)
            );
          }
          matchers.push(matcher);
        }
      }

      return elementMatcher(matchers);
    }

    function matcherFromGroupMatchers(elementMatchers, setMatchers) {
      var bySet = setMatchers.length > 0,
        byElement = elementMatchers.length > 0,
        superMatcher = function (seed, context, xml, results, outermost) {
          var elem, j, matcher,
            matchedCount = 0,
            i = "0",
            unmatched = seed && [],
            setMatched = [],
            contextBackup = outermostContext,
            // We must always have either seed elements or outermost context
            elems = seed || byElement && Expr.find["TAG"]("*", outermost),
            // Use integer dirruns iff this is the outermost matcher
            dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
            len = elems.length;

          if (outermost) {
            outermostContext = context !== document && context;
          }

          // Add elements passing elementMatchers directly to results
          // Keep `i` a string if there are no elements so `matchedCount` will be "00" below
          // Support: IE<9, Safari
          // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
          for (; i !== len && (elem = elems[i]) != null; i++) {
            if (byElement && elem) {
              j = 0;
              while ((matcher = elementMatchers[j++])) {
                if (matcher(elem, context, xml)) {
                  results.push(elem);
                  break;
                }
              }
              if (outermost) {
                dirruns = dirrunsUnique;
              }
            }

            // Track unmatched elements for set filters
            if (bySet) {
              // They will have gone through all possible matchers
              if ((elem = !matcher && elem)) {
                matchedCount--;
              }

              // Lengthen the array for every element, matched or not
              if (seed) {
                unmatched.push(elem);
              }
            }
          }

          // Apply set filters to unmatched elements
          matchedCount += i;
          if (bySet && i !== matchedCount) {
            j = 0;
            while ((matcher = setMatchers[j++])) {
              matcher(unmatched, setMatched, context, xml);
            }

            if (seed) {
              // Reintegrate element matches to eliminate the need for sorting
              if (matchedCount > 0) {
                while (i--) {
                  if (!(unmatched[i] || setMatched[i])) {
                    setMatched[i] = pop.call(results);
                  }
                }
              }

              // Discard index placeholder values to get only actual matches
              setMatched = condense(setMatched);
            }

            // Add matches to results
            push.apply(results, setMatched);

            // Seedless set matches succeeding multiple successful matchers stipulate sorting
            if (outermost && !seed && setMatched.length > 0 &&
              (matchedCount + setMatchers.length) > 1) {

              Sizzle.uniqueSort(results);
            }
          }

          // Override manipulation of globals by nested matchers
          if (outermost) {
            dirruns = dirrunsUnique;
            outermostContext = contextBackup;
          }

          return unmatched;
        };

      return bySet ?
        markFunction(superMatcher) :
        superMatcher;
    }

    compile = Sizzle.compile = function (selector, match /* Internal Use Only */) {
      var i,
        setMatchers = [],
        elementMatchers = [],
        cached = compilerCache[selector + " "];

      if (!cached) {
        // Generate a function of recursive functions that can be used to check each element
        if (!match) {
          match = tokenize(selector);
        }
        i = match.length;
        while (i--) {
          cached = matcherFromTokens(match[i]);
          if (cached[expando]) {
            setMatchers.push(cached);
          } else {
            elementMatchers.push(cached);
          }
        }

        // Cache the compiled function
        cached = compilerCache(selector, matcherFromGroupMatchers(elementMatchers, setMatchers));

        // Save selector and tokenization
        cached.selector = selector;
      }
      return cached;
    };

    /**
     * A low-level selection function that works with Sizzle's compiled
     *  selector functions
     * @param {String|Function} selector A selector or a pre-compiled
     *  selector function built with Sizzle.compile
     * @param {Element} context
     * @param {Array} [results]
     * @param {Array} [seed] A set of elements to match against
     */
    select = Sizzle.select = function (selector, context, results, seed) {
      var i, tokens, token, type, find,
        compiled = typeof selector === "function" && selector,
        match = !seed && tokenize((selector = compiled.selector || selector));

      results = results || [];

      // Try to minimize operations if there is no seed and only one group
      if (match.length === 1) {

        // Take a shortcut and set the context if the root selector is an ID
        tokens = match[0] = match[0].slice(0);
        if (tokens.length > 2 && (token = tokens[0]).type === "ID" &&
          support.getById && context.nodeType === 9 && documentIsHTML &&
          Expr.relative[tokens[1].type]) {

          context = (Expr.find["ID"](token.matches[0].replace(runescape, funescape), context) || [])[0];
          if (!context) {
            return results;

            // Precompiled matchers will still verify ancestry, so step up a level
          } else if (compiled) {
            context = context.parentNode;
          }

          selector = selector.slice(tokens.shift().value.length);
        }

        // Fetch a seed set for right-to-left matching
        i = matchExpr["needsContext"].test(selector) ? 0 : tokens.length;
        while (i--) {
          token = tokens[i];

          // Abort if we hit a combinator
          if (Expr.relative[(type = token.type)]) {
            break;
          }
          if ((find = Expr.find[type])) {
            // Search, expanding context for leading sibling combinators
            if ((seed = find(
              token.matches[0].replace(runescape, funescape),
              rsibling.test(tokens[0].type) && testContext(context.parentNode) || context
            ))) {

              // If seed is empty or no tokens remain, we can return early
              tokens.splice(i, 1);
              selector = seed.length && toSelector(tokens);
              if (!selector) {
                push.apply(results, seed);
                return results;
              }

              break;
            }
          }
        }
      }

      // Compile and execute a filtering function if one is not provided
      // Provide `match` to avoid retokenization if we modified the selector above
      (compiled || compile(selector, match))(
        seed,
        context,
        !documentIsHTML,
        results,
        rsibling.test(selector) && testContext(context.parentNode) || context
      );
      return results;
    };

    // One-time assignments

    // Sort stability
    support.sortStable = expando.split("").sort(sortOrder).join("") === expando;

    // Support: Chrome 14-35+
    // Always assume duplicates if they aren't passed to the comparison function
    support.detectDuplicates = !!hasDuplicate;

    // Initialize against the default document
    setDocument();

    // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
    // Detached nodes confoundingly follow *each other*
    support.sortDetached = assert(function (div1) {
      // Should return 1, but returns 4 (following)
      return div1.compareDocumentPosition(document.createElement("div")) & 1;
    }
    );

    // Support: IE<8
    // Prevent attribute/property "interpolation"
    // http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
    if (!assert(function (div) {
      div.innerHTML = "<a href='#'></a>";
      return div.firstChild.getAttribute("href") === "#";
    })) {
      addHandle("type|href|height|width", function (elem, name, isXML) {
        if (!isXML) {
          return elem.getAttribute(name, name.toLowerCase() === "type" ? 1 : 2);
        }
      });
    }

    // Support: IE<9
    // Use defaultValue in place of getAttribute("value")
    if (!support.attributes || !assert(function (div) {
      div.innerHTML = "<input/>";
      div.firstChild.setAttribute("value", "");
      return div.firstChild.getAttribute("value") === "";
    })) {
      addHandle("value", function (elem, name, isXML) {
        if (!isXML && elem.nodeName.toLowerCase() === "input") {
          return elem.defaultValue;
        }
      });
    }

    // Support: IE<9
    // Use getAttributeNode to fetch booleans when getAttribute lies
    if (!assert(function (div) {
      return div.getAttribute("disabled") == null;
    })) {
      addHandle(booleans, function (elem, name, isXML) {
        var val;
        if (!isXML) {
          return elem[name] === true ? name.toLowerCase() :
            (val = elem.getAttributeNode(name)) && val.specified ?
              val.value :
              null;
        }
      });
    }

    // EXPOSE
    return Sizzle;
  }
);

/*eslint-enable */

/**
 * Arr.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Array utility class.
 *
 * @private
 * @class tinymce.util.Arr
 */
define(
  'tinymce.core.util.Arr',
  [
  ],
  function () {
    var isArray = Array.isArray || function (obj) {
      return Object.prototype.toString.call(obj) === "[object Array]";
    };

    function toArray(obj) {
      var array = obj, i, l;

      if (!isArray(obj)) {
        array = [];
        for (i = 0, l = obj.length; i < l; i++) {
          array[i] = obj[i];
        }
      }

      return array;
    }

    function each(o, cb, s) {
      var n, l;

      if (!o) {
        return 0;
      }

      s = s || o;

      if (o.length !== undefined) {
        // Indexed arrays, needed for Safari
        for (n = 0, l = o.length; n < l; n++) {
          if (cb.call(s, o[n], n, o) === false) {
            return 0;
          }
        }
      } else {
        // Hashtables
        for (n in o) {
          if (o.hasOwnProperty(n)) {
            if (cb.call(s, o[n], n, o) === false) {
              return 0;
            }
          }
        }
      }

      return 1;
    }

    function map(array, callback) {
      var out = [];

      each(array, function (item, index) {
        out.push(callback(item, index, array));
      });

      return out;
    }

    function filter(a, f) {
      var o = [];

      each(a, function (v, index) {
        if (!f || f(v, index, a)) {
          o.push(v);
        }
      });

      return o;
    }

    function indexOf(a, v) {
      var i, l;

      if (a) {
        for (i = 0, l = a.length; i < l; i++) {
          if (a[i] === v) {
            return i;
          }
        }
      }

      return -1;
    }

    function reduce(collection, iteratee, accumulator, thisArg) {
      var i = 0;

      if (arguments.length < 3) {
        accumulator = collection[0];
      }

      for (; i < collection.length; i++) {
        accumulator = iteratee.call(thisArg, accumulator, collection[i], i);
      }

      return accumulator;
    }

    function findIndex(array, predicate, thisArg) {
      var i, l;

      for (i = 0, l = array.length; i < l; i++) {
        if (predicate.call(thisArg, array[i], i, array)) {
          return i;
        }
      }

      return -1;
    }

    function find(array, predicate, thisArg) {
      var idx = findIndex(array, predicate, thisArg);

      if (idx !== -1) {
        return array[idx];
      }

      return undefined;
    }

    function last(collection) {
      return collection[collection.length - 1];
    }

    return {
      isArray: isArray,
      toArray: toArray,
      each: each,
      map: map,
      filter: filter,
      indexOf: indexOf,
      reduce: reduce,
      findIndex: findIndex,
      find: find,
      last: last
    };
  }
);
/**
 * Tools.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class contains various utlity functions. These are also exposed
 * directly on the tinymce namespace.
 *
 * @class tinymce.util.Tools
 */
define(
  'tinymce.core.util.Tools',
  [
    "tinymce.core.Env",
    "tinymce.core.util.Arr"
  ],
  function (Env, Arr) {
    /**
     * Removes whitespace from the beginning and end of a string.
     *
     * @method trim
     * @param {String} s String to remove whitespace from.
     * @return {String} New string with removed whitespace.
     */
    var whiteSpaceRegExp = /^\s*|\s*$/g;

    function trim(str) {
      return (str === null || str === undefined) ? '' : ("" + str).replace(whiteSpaceRegExp, '');
    }

    /**
     * Checks if a object is of a specific type for example an array.
     *
     * @method is
     * @param {Object} obj Object to check type of.
     * @param {string} type Optional type to check for.
     * @return {Boolean} true/false if the object is of the specified type.
     */
    function is(obj, type) {
      if (!type) {
        return obj !== undefined;
      }

      if (type == 'array' && Arr.isArray(obj)) {
        return true;
      }

      return typeof obj == type;
    }

    /**
     * Makes a name/object map out of an array with names.
     *
     * @method makeMap
     * @param {Array/String} items Items to make map out of.
     * @param {String} delim Optional delimiter to split string by.
     * @param {Object} map Optional map to add items to.
     * @return {Object} Name/value map of items.
     */
    function makeMap(items, delim, map) {
      var i;

      items = items || [];
      delim = delim || ',';

      if (typeof items == "string") {
        items = items.split(delim);
      }

      map = map || {};

      i = items.length;
      while (i--) {
        map[items[i]] = {};
      }

      return map;
    }

    /**
     * JavaScript does not protect hasOwnProperty method, so it is possible to overwrite it. This is
     * object independent version.
     *
     * @param {Object} obj
     * @param {String} prop
     * @returns {Boolean}
     */
    function hasOwnProperty(obj, prop) {
      return Object.prototype.hasOwnProperty.call(obj, prop);
    }

    /**
     * Creates a class, subclass or static singleton.
     * More details on this method can be found in the Wiki.
     *
     * @method create
     * @param {String} s Class name, inheritance and prefix.
     * @param {Object} p Collection of methods to add to the class.
     * @param {Object} root Optional root object defaults to the global window object.
     * @example
     * // Creates a basic class
     * tinymce.create('tinymce.somepackage.SomeClass', {
     *     SomeClass: function() {
     *         // Class constructor
     *     },
     *
     *     method: function() {
     *         // Some method
     *     }
     * });
     *
     * // Creates a basic subclass class
     * tinymce.create('tinymce.somepackage.SomeSubClass:tinymce.somepackage.SomeClass', {
     *     SomeSubClass: function() {
     *         // Class constructor
     *         this.parent(); // Call parent constructor
     *     },
     *
     *     method: function() {
     *         // Some method
     *         this.parent(); // Call parent method
     *     },
     *
     *     'static': {
     *         staticMethod: function() {
     *             // Static method
     *         }
     *     }
     * });
     *
     * // Creates a singleton/static class
     * tinymce.create('static tinymce.somepackage.SomeSingletonClass', {
     *     method: function() {
     *         // Some method
     *     }
     * });
     */
    function create(s, p, root) {
      var self = this, sp, ns, cn, scn, c, de = 0;

      // Parse : <prefix> <class>:<super class>
      s = /^((static) )?([\w.]+)(:([\w.]+))?/.exec(s);
      cn = s[3].match(/(^|\.)(\w+)$/i)[2]; // Class name

      // Create namespace for new class
      ns = self.createNS(s[3].replace(/\.\w+$/, ''), root);

      // Class already exists
      if (ns[cn]) {
        return;
      }

      // Make pure static class
      if (s[2] == 'static') {
        ns[cn] = p;

        if (this.onCreate) {
          this.onCreate(s[2], s[3], ns[cn]);
        }

        return;
      }

      // Create default constructor
      if (!p[cn]) {
        p[cn] = function () { };
        de = 1;
      }

      // Add constructor and methods
      ns[cn] = p[cn];
      self.extend(ns[cn].prototype, p);

      // Extend
      if (s[5]) {
        sp = self.resolve(s[5]).prototype;
        scn = s[5].match(/\.(\w+)$/i)[1]; // Class name

        // Extend constructor
        c = ns[cn];
        if (de) {
          // Add passthrough constructor
          ns[cn] = function () {
            return sp[scn].apply(this, arguments);
          };
        } else {
          // Add inherit constructor
          ns[cn] = function () {
            this.parent = sp[scn];
            return c.apply(this, arguments);
          };
        }
        ns[cn].prototype[cn] = ns[cn];

        // Add super methods
        self.each(sp, function (f, n) {
          ns[cn].prototype[n] = sp[n];
        });

        // Add overridden methods
        self.each(p, function (f, n) {
          // Extend methods if needed
          if (sp[n]) {
            ns[cn].prototype[n] = function () {
              this.parent = sp[n];
              return f.apply(this, arguments);
            };
          } else {
            if (n != cn) {
              ns[cn].prototype[n] = f;
            }
          }
        });
      }

      // Add static methods
      /*jshint sub:true*/
      /*eslint dot-notation:0*/
      self.each(p['static'], function (f, n) {
        ns[cn][n] = f;
      });
    }

    function extend(obj, ext) {
      var i, l, name, args = arguments, value;

      for (i = 1, l = args.length; i < l; i++) {
        ext = args[i];
        for (name in ext) {
          if (ext.hasOwnProperty(name)) {
            value = ext[name];

            if (value !== undefined) {
              obj[name] = value;
            }
          }
        }
      }

      return obj;
    }

    /**
     * Executed the specified function for each item in a object tree.
     *
     * @method walk
     * @param {Object} o Object tree to walk though.
     * @param {function} f Function to call for each item.
     * @param {String} n Optional name of collection inside the objects to walk for example childNodes.
     * @param {String} s Optional scope to execute the function in.
     */
    function walk(o, f, n, s) {
      s = s || this;

      if (o) {
        if (n) {
          o = o[n];
        }

        Arr.each(o, function (o, i) {
          if (f.call(s, o, i, n) === false) {
            return false;
          }

          walk(o, f, n, s);
        });
      }
    }

    /**
     * Creates a namespace on a specific object.
     *
     * @method createNS
     * @param {String} n Namespace to create for example a.b.c.d.
     * @param {Object} o Optional object to add namespace to, defaults to window.
     * @return {Object} New namespace object the last item in path.
     * @example
     * // Create some namespace
     * tinymce.createNS('tinymce.somepackage.subpackage');
     *
     * // Add a singleton
     * var tinymce.somepackage.subpackage.SomeSingleton = {
     *     method: function() {
     *         // Some method
     *     }
     * };
     */
    function createNS(n, o) {
      var i, v;

      o = o || window;

      n = n.split('.');
      for (i = 0; i < n.length; i++) {
        v = n[i];

        if (!o[v]) {
          o[v] = {};
        }

        o = o[v];
      }

      return o;
    }

    /**
     * Resolves a string and returns the object from a specific structure.
     *
     * @method resolve
     * @param {String} n Path to resolve for example a.b.c.d.
     * @param {Object} o Optional object to search though, defaults to window.
     * @return {Object} Last object in path or null if it couldn't be resolved.
     * @example
     * // Resolve a path into an object reference
     * var obj = tinymce.resolve('a.b.c.d');
     */
    function resolve(n, o) {
      var i, l;

      o = o || window;

      n = n.split('.');
      for (i = 0, l = n.length; i < l; i++) {
        o = o[n[i]];

        if (!o) {
          break;
        }
      }

      return o;
    }

    /**
     * Splits a string but removes the whitespace before and after each value.
     *
     * @method explode
     * @param {string} s String to split.
     * @param {string} d Delimiter to split by.
     * @example
     * // Split a string into an array with a,b,c
     * var arr = tinymce.explode('a, b,   c');
     */
    function explode(s, d) {
      if (!s || is(s, 'array')) {
        return s;
      }

      return Arr.map(s.split(d || ','), trim);
    }

    function _addCacheSuffix(url) {
      var cacheSuffix = Env.cacheSuffix;

      if (cacheSuffix) {
        url += (url.indexOf('?') === -1 ? '?' : '&') + cacheSuffix;
      }

      return url;
    }

    return {
      trim: trim,

      /**
       * Returns true/false if the object is an array or not.
       *
       * @method isArray
       * @param {Object} obj Object to check.
       * @return {boolean} true/false state if the object is an array or not.
       */
      isArray: Arr.isArray,

      is: is,

      /**
       * Converts the specified object into a real JavaScript array.
       *
       * @method toArray
       * @param {Object} obj Object to convert into array.
       * @return {Array} Array object based in input.
       */
      toArray: Arr.toArray,
      makeMap: makeMap,

      /**
       * Performs an iteration of all items in a collection such as an object or array. This method will execure the
       * callback function for each item in the collection, if the callback returns false the iteration will terminate.
       * The callback has the following format: cb(value, key_or_index).
       *
       * @method each
       * @param {Object} o Collection to iterate.
       * @param {function} cb Callback function to execute for each item.
       * @param {Object} s Optional scope to execute the callback in.
       * @example
       * // Iterate an array
       * tinymce.each([1,2,3], function(v, i) {
       *     console.debug("Value: " + v + ", Index: " + i);
       * });
       *
       * // Iterate an object
       * tinymce.each({a: 1, b: 2, c: 3], function(v, k) {
       *     console.debug("Value: " + v + ", Key: " + k);
       * });
       */
      each: Arr.each,

      /**
       * Creates a new array by the return value of each iteration function call. This enables you to convert
       * one array list into another.
       *
       * @method map
       * @param {Array} array Array of items to iterate.
       * @param {function} callback Function to call for each item. It's return value will be the new value.
       * @return {Array} Array with new values based on function return values.
       */
      map: Arr.map,

      /**
       * Filters out items from the input array by calling the specified function for each item.
       * If the function returns false the item will be excluded if it returns true it will be included.
       *
       * @method grep
       * @param {Array} a Array of items to loop though.
       * @param {function} f Function to call for each item. Include/exclude depends on it's return value.
       * @return {Array} New array with values imported and filtered based in input.
       * @example
       * // Filter out some items, this will return an array with 4 and 5
       * var items = tinymce.grep([1,2,3,4,5], function(v) {return v > 3;});
       */
      grep: Arr.filter,

      /**
       * Returns an index of the item or -1 if item is not present in the array.
       *
       * @method inArray
       * @param {any} item Item to search for.
       * @param {Array} arr Array to search in.
       * @return {Number} index of the item or -1 if item was not found.
       */
      inArray: Arr.indexOf,

      hasOwn: hasOwnProperty,

      extend: extend,
      create: create,
      walk: walk,
      createNS: createNS,
      resolve: resolve,
      explode: explode,
      _addCacheSuffix: _addCacheSuffix
    };
  }
);
/**
 * DomQuery.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class mimics most of the jQuery API:
 *
 * This is whats currently implemented:
 * - Utility functions
 * - DOM traversial
 * - DOM manipulation
 * - Event binding
 *
 * This is not currently implemented:
 * - Dimension
 * - Ajax
 * - Animation
 * - Advanced chaining
 *
 * @example
 * var $ = tinymce.dom.DomQuery;
 * $('p').attr('attr', 'value').addClass('class');
 *
 * @class tinymce.dom.DomQuery
 */
define(
  'tinymce.core.dom.DomQuery',
  [
    "tinymce.core.dom.EventUtils",
    "tinymce.core.dom.Sizzle",
    "tinymce.core.util.Tools",
    "tinymce.core.Env"
  ],
  function (EventUtils, Sizzle, Tools, Env) {
    var doc = document, push = Array.prototype.push, slice = Array.prototype.slice;
    var rquickExpr = /^(?:[^#<]*(<[\w\W]+>)[^>]*$|#([\w\-]*)$)/;
    var Event = EventUtils.Event, undef;
    var skipUniques = Tools.makeMap('children,contents,next,prev');

    function isDefined(obj) {
      return typeof obj !== 'undefined';
    }

    function isString(obj) {
      return typeof obj === 'string';
    }

    function isWindow(obj) {
      return obj && obj == obj.window;
    }

    function createFragment(html, fragDoc) {
      var frag, node, container;

      fragDoc = fragDoc || doc;
      container = fragDoc.createElement('div');
      frag = fragDoc.createDocumentFragment();
      container.innerHTML = html;

      while ((node = container.firstChild)) {
        frag.appendChild(node);
      }

      return frag;
    }

    function domManipulate(targetNodes, sourceItem, callback, reverse) {
      var i;

      if (isString(sourceItem)) {
        sourceItem = createFragment(sourceItem, getElementDocument(targetNodes[0]));
      } else if (sourceItem.length && !sourceItem.nodeType) {
        sourceItem = DomQuery.makeArray(sourceItem);

        if (reverse) {
          for (i = sourceItem.length - 1; i >= 0; i--) {
            domManipulate(targetNodes, sourceItem[i], callback, reverse);
          }
        } else {
          for (i = 0; i < sourceItem.length; i++) {
            domManipulate(targetNodes, sourceItem[i], callback, reverse);
          }
        }

        return targetNodes;
      }

      if (sourceItem.nodeType) {
        i = targetNodes.length;
        while (i--) {
          callback.call(targetNodes[i], sourceItem);
        }
      }

      return targetNodes;
    }

    function hasClass(node, className) {
      return node && className && (' ' + node.className + ' ').indexOf(' ' + className + ' ') !== -1;
    }

    function wrap(elements, wrapper, all) {
      var lastParent, newWrapper;

      wrapper = DomQuery(wrapper)[0];

      elements.each(function () {
        var self = this;

        if (!all || lastParent != self.parentNode) {
          lastParent = self.parentNode;
          newWrapper = wrapper.cloneNode(false);
          self.parentNode.insertBefore(newWrapper, self);
          newWrapper.appendChild(self);
        } else {
          newWrapper.appendChild(self);
        }
      });

      return elements;
    }

    var numericCssMap = Tools.makeMap('fillOpacity fontWeight lineHeight opacity orphans widows zIndex zoom', ' ');
    var booleanMap = Tools.makeMap('checked compact declare defer disabled ismap multiple nohref noshade nowrap readonly selected', ' ');
    var propFix = {
      'for': 'htmlFor',
      'class': 'className',
      'readonly': 'readOnly'
    };
    var cssFix = {
      'float': 'cssFloat'
    };

    var attrHooks = {}, cssHooks = {};

    function DomQuery(selector, context) {
      /*eslint new-cap:0 */
      return new DomQuery.fn.init(selector, context);
    }

    function inArray(item, array) {
      var i;

      if (array.indexOf) {
        return array.indexOf(item);
      }

      i = array.length;
      while (i--) {
        if (array[i] === item) {
          return i;
        }
      }

      return -1;
    }

    var whiteSpaceRegExp = /^\s*|\s*$/g;

    function trim(str) {
      return (str === null || str === undef) ? '' : ("" + str).replace(whiteSpaceRegExp, '');
    }

    function each(obj, callback) {
      var length, key, i, undef, value;

      if (obj) {
        length = obj.length;

        if (length === undef) {
          // Loop object items
          for (key in obj) {
            if (obj.hasOwnProperty(key)) {
              value = obj[key];
              if (callback.call(value, key, value) === false) {
                break;
              }
            }
          }
        } else {
          // Loop array items
          for (i = 0; i < length; i++) {
            value = obj[i];
            if (callback.call(value, i, value) === false) {
              break;
            }
          }
        }
      }

      return obj;
    }

    function grep(array, callback) {
      var out = [];

      each(array, function (i, item) {
        if (callback(item, i)) {
          out.push(item);
        }
      });

      return out;
    }

    function getElementDocument(element) {
      if (!element) {
        return doc;
      }

      if (element.nodeType == 9) {
        return element;
      }

      return element.ownerDocument;
    }

    DomQuery.fn = DomQuery.prototype = {
      constructor: DomQuery,

      /**
       * Selector for the current set.
       *
       * @property selector
       * @type String
       */
      selector: "",

      /**
       * Context used to create the set.
       *
       * @property context
       * @type Element
       */
      context: null,

      /**
       * Number of items in the current set.
       *
       * @property length
       * @type Number
       */
      length: 0,

      /**
       * Constructs a new DomQuery instance with the specified selector or context.
       *
       * @constructor
       * @method init
       * @param {String/Array/DomQuery} selector Optional CSS selector/Array or array like object or HTML string.
       * @param {Document/Element} context Optional context to search in.
       */
      init: function (selector, context) {
        var self = this, match, node;

        if (!selector) {
          return self;
        }

        if (selector.nodeType) {
          self.context = self[0] = selector;
          self.length = 1;

          return self;
        }

        if (context && context.nodeType) {
          self.context = context;
        } else {
          if (context) {
            return DomQuery(selector).attr(context);
          }

          self.context = context = document;
        }

        if (isString(selector)) {
          self.selector = selector;

          if (selector.charAt(0) === "<" && selector.charAt(selector.length - 1) === ">" && selector.length >= 3) {
            match = [null, selector, null];
          } else {
            match = rquickExpr.exec(selector);
          }

          if (match) {
            if (match[1]) {
              node = createFragment(selector, getElementDocument(context)).firstChild;

              while (node) {
                push.call(self, node);
                node = node.nextSibling;
              }
            } else {
              node = getElementDocument(context).getElementById(match[2]);

              if (!node) {
                return self;
              }

              if (node.id !== match[2]) {
                return self.find(selector);
              }

              self.length = 1;
              self[0] = node;
            }
          } else {
            return DomQuery(context).find(selector);
          }
        } else {
          this.add(selector, false);
        }

        return self;
      },

      /**
       * Converts the current set to an array.
       *
       * @method toArray
       * @return {Array} Array of all nodes in set.
       */
      toArray: function () {
        return Tools.toArray(this);
      },

      /**
       * Adds new nodes to the set.
       *
       * @method add
       * @param {Array/tinymce.core.dom.DomQuery} items Array of all nodes to add to set.
       * @param {Boolean} sort Optional sort flag that enables sorting of elements.
       * @return {tinymce.dom.DomQuery} New instance with nodes added.
       */
      add: function (items, sort) {
        var self = this, nodes, i;

        if (isString(items)) {
          return self.add(DomQuery(items));
        }

        if (sort !== false) {
          nodes = DomQuery.unique(self.toArray().concat(DomQuery.makeArray(items)));
          self.length = nodes.length;
          for (i = 0; i < nodes.length; i++) {
            self[i] = nodes[i];
          }
        } else {
          push.apply(self, DomQuery.makeArray(items));
        }

        return self;
      },

      /**
       * Sets/gets attributes on the elements in the current set.
       *
       * @method attr
       * @param {String/Object} name Name of attribute to get or an object with attributes to set.
       * @param {String} value Optional value to set.
       * @return {tinymce.dom.DomQuery/String} Current set or the specified attribute when only the name is specified.
       */
      attr: function (name, value) {
        var self = this, hook;

        if (typeof name === "object") {
          each(name, function (name, value) {
            self.attr(name, value);
          });
        } else if (isDefined(value)) {
          this.each(function () {
            var hook;

            if (this.nodeType === 1) {
              hook = attrHooks[name];
              if (hook && hook.set) {
                hook.set(this, value);
                return;
              }

              if (value === null) {
                this.removeAttribute(name, 2);
              } else {
                this.setAttribute(name, value, 2);
              }
            }
          });
        } else {
          if (self[0] && self[0].nodeType === 1) {
            hook = attrHooks[name];
            if (hook && hook.get) {
              return hook.get(self[0], name);
            }

            if (booleanMap[name]) {
              return self.prop(name) ? name : undef;
            }

            value = self[0].getAttribute(name, 2);

            if (value === null) {
              value = undef;
            }
          }

          return value;
        }

        return self;
      },

      /**
       * Removes attributse on the elements in the current set.
       *
       * @method removeAttr
       * @param {String/Object} name Name of attribute to remove.
       * @return {tinymce.dom.DomQuery/String} Current set.
       */
      removeAttr: function (name) {
        return this.attr(name, null);
      },

      /**
       * Sets/gets properties on the elements in the current set.
       *
       * @method attr
       * @param {String/Object} name Name of property to get or an object with properties to set.
       * @param {String} value Optional value to set.
       * @return {tinymce.dom.DomQuery/String} Current set or the specified property when only the name is specified.
       */
      prop: function (name, value) {
        var self = this;

        name = propFix[name] || name;

        if (typeof name === "object") {
          each(name, function (name, value) {
            self.prop(name, value);
          });
        } else if (isDefined(value)) {
          this.each(function () {
            if (this.nodeType == 1) {
              this[name] = value;
            }
          });
        } else {
          if (self[0] && self[0].nodeType && name in self[0]) {
            return self[0][name];
          }

          return value;
        }

        return self;
      },

      /**
       * Sets/gets styles on the elements in the current set.
       *
       * @method css
       * @param {String/Object} name Name of style to get or an object with styles to set.
       * @param {String} value Optional value to set.
       * @return {tinymce.dom.DomQuery/String} Current set or the specified style when only the name is specified.
       */
      css: function (name, value) {
        var self = this, elm, hook;

        function camel(name) {
          return name.replace(/-(\D)/g, function (a, b) {
            return b.toUpperCase();
          });
        }

        function dashed(name) {
          return name.replace(/[A-Z]/g, function (a) {
            return '-' + a;
          });
        }

        if (typeof name === "object") {
          each(name, function (name, value) {
            self.css(name, value);
          });
        } else {
          if (isDefined(value)) {
            name = camel(name);

            // Default px suffix on these
            if (typeof value === 'number' && !numericCssMap[name]) {
              value += 'px';
            }

            self.each(function () {
              var style = this.style;

              hook = cssHooks[name];
              if (hook && hook.set) {
                hook.set(this, value);
                return;
              }

              try {
                this.style[cssFix[name] || name] = value;
              } catch (ex) {
                // Ignore
              }

              if (value === null || value === '') {
                if (style.removeProperty) {
                  style.removeProperty(dashed(name));
                } else {
                  style.removeAttribute(name);
                }
              }
            });
          } else {
            elm = self[0];

            hook = cssHooks[name];
            if (hook && hook.get) {
              return hook.get(elm);
            }

            if (elm.ownerDocument.defaultView) {
              try {
                return elm.ownerDocument.defaultView.getComputedStyle(elm, null).getPropertyValue(dashed(name));
              } catch (ex) {
                return undef;
              }
            } else if (elm.currentStyle) {
              return elm.currentStyle[camel(name)];
            }
          }
        }

        return self;
      },

      /**
       * Removes all nodes in set from the document.
       *
       * @method remove
       * @return {tinymce.dom.DomQuery} Current set with the removed nodes.
       */
      remove: function () {
        var self = this, node, i = this.length;

        while (i--) {
          node = self[i];
          Event.clean(node);

          if (node.parentNode) {
            node.parentNode.removeChild(node);
          }
        }

        return this;
      },

      /**
       * Empties all elements in set.
       *
       * @method empty
       * @return {tinymce.dom.DomQuery} Current set with the empty nodes.
       */
      empty: function () {
        var self = this, node, i = this.length;

        while (i--) {
          node = self[i];
          while (node.firstChild) {
            node.removeChild(node.firstChild);
          }
        }

        return this;
      },

      /**
       * Sets or gets the HTML of the current set or first set node.
       *
       * @method html
       * @param {String} value Optional innerHTML value to set on each element.
       * @return {tinymce.dom.DomQuery/String} Current set or the innerHTML of the first element.
       */
      html: function (value) {
        var self = this, i;

        if (isDefined(value)) {
          i = self.length;

          try {
            while (i--) {
              self[i].innerHTML = value;
            }
          } catch (ex) {
            // Workaround for "Unknown runtime error" when DIV is added to P on IE
            DomQuery(self[i]).empty().append(value);
          }

          return self;
        }

        return self[0] ? self[0].innerHTML : '';
      },

      /**
       * Sets or gets the text of the current set or first set node.
       *
       * @method text
       * @param {String} value Optional innerText value to set on each element.
       * @return {tinymce.dom.DomQuery/String} Current set or the innerText of the first element.
       */
      text: function (value) {
        var self = this, i;

        if (isDefined(value)) {
          i = self.length;
          while (i--) {
            if ("innerText" in self[i]) {
              self[i].innerText = value;
            } else {
              self[0].textContent = value;
            }
          }

          return self;
        }

        return self[0] ? (self[0].innerText || self[0].textContent) : '';
      },

      /**
       * Appends the specified node/html or node set to the current set nodes.
       *
       * @method append
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to append to each element in set.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      append: function () {
        return domManipulate(this, arguments, function (node) {
          // Either element or Shadow Root
          if (this.nodeType === 1 || (this.host && this.host.nodeType === 1)) {
            this.appendChild(node);
          }
        });
      },

      /**
       * Prepends the specified node/html or node set to the current set nodes.
       *
       * @method prepend
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to prepend to each element in set.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      prepend: function () {
        return domManipulate(this, arguments, function (node) {
          // Either element or Shadow Root
          if (this.nodeType === 1 || (this.host && this.host.nodeType === 1)) {
            this.insertBefore(node, this.firstChild);
          }
        }, true);
      },

      /**
       * Adds the specified elements before current set nodes.
       *
       * @method before
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to add before to each element in set.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      before: function () {
        var self = this;

        if (self[0] && self[0].parentNode) {
          return domManipulate(self, arguments, function (node) {
            this.parentNode.insertBefore(node, this);
          });
        }

        return self;
      },

      /**
       * Adds the specified elements after current set nodes.
       *
       * @method after
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to add after to each element in set.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      after: function () {
        var self = this;

        if (self[0] && self[0].parentNode) {
          return domManipulate(self, arguments, function (node) {
            this.parentNode.insertBefore(node, this.nextSibling);
          }, true);
        }

        return self;
      },

      /**
       * Appends the specified set nodes to the specified selector/instance.
       *
       * @method appendTo
       * @param {String/Element/Array/tinymce.dom.DomQuery} val Item to append the current set to.
       * @return {tinymce.dom.DomQuery} Current set with the appended nodes.
       */
      appendTo: function (val) {
        DomQuery(val).append(this);

        return this;
      },

      /**
       * Prepends the specified set nodes to the specified selector/instance.
       *
       * @method prependTo
       * @param {String/Element/Array/tinymce.dom.DomQuery} val Item to prepend the current set to.
       * @return {tinymce.dom.DomQuery} Current set with the prepended nodes.
       */
      prependTo: function (val) {
        DomQuery(val).prepend(this);

        return this;
      },

      /**
       * Replaces the nodes in set with the specified content.
       *
       * @method replaceWith
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to replace nodes with.
       * @return {tinymce.dom.DomQuery} Set with replaced nodes.
       */
      replaceWith: function (content) {
        return this.before(content).remove();
      },

      /**
       * Wraps all elements in set with the specified wrapper.
       *
       * @method wrap
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to wrap nodes with.
       * @return {tinymce.dom.DomQuery} Set with wrapped nodes.
       */
      wrap: function (content) {
        return wrap(this, content);
      },

      /**
       * Wraps all nodes in set with the specified wrapper. If the nodes are siblings all of them
       * will be wrapped in the same wrapper.
       *
       * @method wrapAll
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to wrap nodes with.
       * @return {tinymce.dom.DomQuery} Set with wrapped nodes.
       */
      wrapAll: function (content) {
        return wrap(this, content, true);
      },

      /**
       * Wraps all elements inner contents in set with the specified wrapper.
       *
       * @method wrapInner
       * @param {String/Element/Array/tinymce.dom.DomQuery} content Content to wrap nodes with.
       * @return {tinymce.dom.DomQuery} Set with wrapped nodes.
       */
      wrapInner: function (content) {
        this.each(function () {
          DomQuery(this).contents().wrapAll(content);
        });

        return this;
      },

      /**
       * Unwraps all elements by removing the parent element of each item in set.
       *
       * @method unwrap
       * @return {tinymce.dom.DomQuery} Set with unwrapped nodes.
       */
      unwrap: function () {
        return this.parent().each(function () {
          DomQuery(this).replaceWith(this.childNodes);
        });
      },

      /**
       * Clones all nodes in set.
       *
       * @method clone
       * @return {tinymce.dom.DomQuery} Set with cloned nodes.
       */
      clone: function () {
        var result = [];

        this.each(function () {
          result.push(this.cloneNode(true));
        });

        return DomQuery(result);
      },

      /**
       * Adds the specified class name to the current set elements.
       *
       * @method addClass
       * @param {String} className Class name to add.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      addClass: function (className) {
        return this.toggleClass(className, true);
      },

      /**
       * Removes the specified class name to the current set elements.
       *
       * @method removeClass
       * @param {String} className Class name to remove.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      removeClass: function (className) {
        return this.toggleClass(className, false);
      },

      /**
       * Toggles the specified class name on the current set elements.
       *
       * @method toggleClass
       * @param {String} className Class name to add/remove.
       * @param {Boolean} state Optional state to toggle on/off.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      toggleClass: function (className, state) {
        var self = this;

        // Functions are not supported
        if (typeof className != 'string') {
          return self;
        }

        if (className.indexOf(' ') !== -1) {
          each(className.split(' '), function () {
            self.toggleClass(this, state);
          });
        } else {
          self.each(function (index, node) {
            var existingClassName, classState;

            classState = hasClass(node, className);
            if (classState !== state) {
              existingClassName = node.className;

              if (classState) {
                node.className = trim((" " + existingClassName + " ").replace(' ' + className + ' ', ' '));
              } else {
                node.className += existingClassName ? ' ' + className : className;
              }
            }
          });
        }

        return self;
      },

      /**
       * Returns true/false if the first item in set has the specified class.
       *
       * @method hasClass
       * @param {String} className Class name to check for.
       * @return {Boolean} True/false if the set has the specified class.
       */
      hasClass: function (className) {
        return hasClass(this[0], className);
      },

      /**
       * Executes the callback function for each item DomQuery collection. If you return false in the
       * callback it will break the loop.
       *
       * @method each
       * @param {function} callback Callback function to execute for each item.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      each: function (callback) {
        return each(this, callback);
      },

      /**
       * Binds an event with callback function to the elements in set.
       *
       * @method on
       * @param {String} name Name of the event to bind.
       * @param {function} callback Callback function to execute when the event occurs.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      on: function (name, callback) {
        return this.each(function () {
          Event.bind(this, name, callback);
        });
      },

      /**
       * Unbinds an event with callback function to the elements in set.
       *
       * @method off
       * @param {String} name Optional name of the event to bind.
       * @param {function} callback Optional callback function to execute when the event occurs.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      off: function (name, callback) {
        return this.each(function () {
          Event.unbind(this, name, callback);
        });
      },

      /**
       * Triggers the specified event by name or event object.
       *
       * @method trigger
       * @param {String/Object} name Name of the event to trigger or event object.
       * @return {tinymce.dom.DomQuery} Current set.
       */
      trigger: function (name) {
        return this.each(function () {
          if (typeof name == 'object') {
            Event.fire(this, name.type, name);
          } else {
            Event.fire(this, name);
          }
        });
      },

      /**
       * Shows all elements in set.
       *
       * @method show
       * @return {tinymce.dom.DomQuery} Current set.
       */
      show: function () {
        return this.css('display', '');
      },

      /**
       * Hides all elements in set.
       *
       * @method hide
       * @return {tinymce.dom.DomQuery} Current set.
       */
      hide: function () {
        return this.css('display', 'none');
      },

      /**
       * Slices the current set.
       *
       * @method slice
       * @param {Number} start Start index to slice at.
       * @param {Number} end Optional end index to end slice at.
       * @return {tinymce.dom.DomQuery} Sliced set.
       */
      slice: function () {
        return new DomQuery(slice.apply(this, arguments));
      },

      /**
       * Makes the set equal to the specified index.
       *
       * @method eq
       * @param {Number} index Index to set it equal to.
       * @return {tinymce.dom.DomQuery} Single item set.
       */
      eq: function (index) {
        return index === -1 ? this.slice(index) : this.slice(index, +index + 1);
      },

      /**
       * Makes the set equal to first element in set.
       *
       * @method first
       * @return {tinymce.dom.DomQuery} Single item set.
       */
      first: function () {
        return this.eq(0);
      },

      /**
       * Makes the set equal to last element in set.
       *
       * @method last
       * @return {tinymce.dom.DomQuery} Single item set.
       */
      last: function () {
        return this.eq(-1);
      },

      /**
       * Finds elements by the specified selector for each element in set.
       *
       * @method find
       * @param {String} selector Selector to find elements by.
       * @return {tinymce.dom.DomQuery} Set with matches elements.
       */
      find: function (selector) {
        var i, l, ret = [];

        for (i = 0, l = this.length; i < l; i++) {
          DomQuery.find(selector, this[i], ret);
        }

        return DomQuery(ret);
      },

      /**
       * Filters the current set with the specified selector.
       *
       * @method filter
       * @param {String/function} selector Selector to filter elements by.
       * @return {tinymce.dom.DomQuery} Set with filtered elements.
       */
      filter: function (selector) {
        if (typeof selector == 'function') {
          return DomQuery(grep(this.toArray(), function (item, i) {
            return selector(i, item);
          }));
        }

        return DomQuery(DomQuery.filter(selector, this.toArray()));
      },

      /**
       * Gets the current node or any parent matching the specified selector.
       *
       * @method closest
       * @param {String/Element/tinymce.dom.DomQuery} selector Selector or element to find.
       * @return {tinymce.dom.DomQuery} Set with closest elements.
       */
      closest: function (selector) {
        var result = [];

        if (selector instanceof DomQuery) {
          selector = selector[0];
        }

        this.each(function (i, node) {
          while (node) {
            if (typeof selector == 'string' && DomQuery(node).is(selector)) {
              result.push(node);
              break;
            } else if (node == selector) {
              result.push(node);
              break;
            }

            node = node.parentNode;
          }
        });

        return DomQuery(result);
      },

      /**
       * Returns the offset of the first element in set or sets the top/left css properties of all elements in set.
       *
       * @method offset
       * @param {Object} offset Optional offset object to set on each item.
       * @return {Object/tinymce.dom.DomQuery} Returns the first element offset or the current set if you specified an offset.
       */
      offset: function (offset) {
        var elm, doc, docElm;
        var x = 0, y = 0, pos;

        if (!offset) {
          elm = this[0];

          if (elm) {
            doc = elm.ownerDocument;
            docElm = doc.documentElement;

            if (elm.getBoundingClientRect) {
              pos = elm.getBoundingClientRect();
              x = pos.left + (docElm.scrollLeft || doc.body.scrollLeft) - docElm.clientLeft;
              y = pos.top + (docElm.scrollTop || doc.body.scrollTop) - docElm.clientTop;
            }
          }

          return {
            left: x,
            top: y
          };
        }

        return this.css(offset);
      },

      push: push,
      sort: [].sort,
      splice: [].splice
    };

    // Static members
    Tools.extend(DomQuery, {
      /**
       * Extends the specified object with one or more objects.
       *
       * @static
       * @method extend
       * @param {Object} target Target object to extend with new items.
       * @param {Object..} object Object to extend the target with.
       * @return {Object} Extended input object.
       */
      extend: Tools.extend,

      /**
       * Creates an array out of an array like object.
       *
       * @static
       * @method makeArray
       * @param {Object} object Object to convert to array.
       * @return {Array} Array produced from object.
       */
      makeArray: function (object) {
        if (isWindow(object) || object.nodeType) {
          return [object];
        }

        return Tools.toArray(object);
      },

      /**
       * Returns the index of the specified item inside the array.
       *
       * @static
       * @method inArray
       * @param {Object} item Item to look for.
       * @param {Array} array Array to look for item in.
       * @return {Number} Index of the item or -1.
       */
      inArray: inArray,

      /**
       * Returns true/false if the specified object is an array or not.
       *
       * @static
       * @method isArray
       * @param {Object} array Object to check if it's an array or not.
       * @return {Boolean} True/false if the object is an array.
       */
      isArray: Tools.isArray,

      /**
       * Executes the callback function for each item in array/object. If you return false in the
       * callback it will break the loop.
       *
       * @static
       * @method each
       * @param {Object} obj Object to iterate.
       * @param {function} callback Callback function to execute for each item.
       */
      each: each,

      /**
       * Removes whitespace from the beginning and end of a string.
       *
       * @static
       * @method trim
       * @param {String} str String to remove whitespace from.
       * @return {String} New string with removed whitespace.
       */
      trim: trim,

      /**
       * Filters out items from the input array by calling the specified function for each item.
       * If the function returns false the item will be excluded if it returns true it will be included.
       *
       * @static
       * @method grep
       * @param {Array} array Array of items to loop though.
       * @param {function} callback Function to call for each item. Include/exclude depends on it's return value.
       * @return {Array} New array with values imported and filtered based in input.
       * @example
       * // Filter out some items, this will return an array with 4 and 5
       * var items = DomQuery.grep([1, 2, 3, 4, 5], function(v) {return v > 3;});
       */
      grep: grep,

      // Sizzle
      find: Sizzle,
      expr: Sizzle.selectors,
      unique: Sizzle.uniqueSort,
      text: Sizzle.getText,
      contains: Sizzle.contains,
      filter: function (expr, elems, not) {
        var i = elems.length;

        if (not) {
          expr = ":not(" + expr + ")";
        }

        while (i--) {
          if (elems[i].nodeType != 1) {
            elems.splice(i, 1);
          }
        }

        if (elems.length === 1) {
          elems = DomQuery.find.matchesSelector(elems[0], expr) ? [elems[0]] : [];
        } else {
          elems = DomQuery.find.matches(expr, elems);
        }

        return elems;
      }
    });

    function dir(el, prop, until) {
      var matched = [], cur = el[prop];

      if (typeof until != 'string' && until instanceof DomQuery) {
        until = until[0];
      }

      while (cur && cur.nodeType !== 9) {
        if (until !== undefined) {
          if (cur === until) {
            break;
          }

          if (typeof until == 'string' && DomQuery(cur).is(until)) {
            break;
          }
        }

        if (cur.nodeType === 1) {
          matched.push(cur);
        }

        cur = cur[prop];
      }

      return matched;
    }

    function sibling(node, siblingName, nodeType, until) {
      var result = [];

      if (until instanceof DomQuery) {
        until = until[0];
      }

      for (; node; node = node[siblingName]) {
        if (nodeType && node.nodeType !== nodeType) {
          continue;
        }

        if (until !== undefined) {
          if (node === until) {
            break;
          }

          if (typeof until == 'string' && DomQuery(node).is(until)) {
            break;
          }
        }

        result.push(node);
      }

      return result;
    }

    function firstSibling(node, siblingName, nodeType) {
      for (node = node[siblingName]; node; node = node[siblingName]) {
        if (node.nodeType == nodeType) {
          return node;
        }
      }

      return null;
    }

    each({
      /**
       * Returns a new collection with the parent of each item in current collection matching the optional selector.
       *
       * @method parent
       * @param {Element/tinymce.dom.DomQuery} node Node to match parents against.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching parents.
       */
      parent: function (node) {
        var parent = node.parentNode;

        return parent && parent.nodeType !== 11 ? parent : null;
      },

      /**
       * Returns a new collection with the all the parents of each item in current collection matching the optional selector.
       *
       * @method parents
       * @param {Element/tinymce.dom.DomQuery} node Node to match parents against.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching parents.
       */
      parents: function (node) {
        return dir(node, "parentNode");
      },

      /**
       * Returns a new collection with next sibling of each item in current collection matching the optional selector.
       *
       * @method next
       * @param {Element/tinymce.dom.DomQuery} node Node to match the next element against.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching elements.
       */
      next: function (node) {
        return firstSibling(node, 'nextSibling', 1);
      },

      /**
       * Returns a new collection with previous sibling of each item in current collection matching the optional selector.
       *
       * @method prev
       * @param {Element/tinymce.dom.DomQuery} node Node to match the previous element against.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching elements.
       */
      prev: function (node) {
        return firstSibling(node, 'previousSibling', 1);
      },

      /**
       * Returns all child elements matching the optional selector.
       *
       * @method children
       * @param {Element/tinymce.dom.DomQuery} node Node to match the elements against.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching elements.
       */
      children: function (node) {
        return sibling(node.firstChild, 'nextSibling', 1);
      },

      /**
       * Returns all child nodes matching the optional selector.
       *
       * @method contents
       * @param {Element/tinymce.dom.DomQuery} node Node to get the contents of.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching elements.
       */
      contents: function (node) {
        return Tools.toArray((node.nodeName === "iframe" ? node.contentDocument || node.contentWindow.document : node).childNodes);
      }
    }, function (name, fn) {
      DomQuery.fn[name] = function (selector) {
        var self = this, result = [];

        self.each(function () {
          var nodes = fn.call(result, this, selector, result);

          if (nodes) {
            if (DomQuery.isArray(nodes)) {
              result.push.apply(result, nodes);
            } else {
              result.push(nodes);
            }
          }
        });

        // If traversing on multiple elements we might get the same elements twice
        if (this.length > 1) {
          if (!skipUniques[name]) {
            result = DomQuery.unique(result);
          }

          if (name.indexOf('parents') === 0) {
            result = result.reverse();
          }
        }

        result = DomQuery(result);

        if (selector) {
          return result.filter(selector);
        }

        return result;
      };
    });

    each({
      /**
       * Returns a new collection with the all the parents until the matching selector/element
       * of each item in current collection matching the optional selector.
       *
       * @method parentsUntil
       * @param {Element/tinymce.dom.DomQuery} node Node to find parent of.
       * @param {String/Element/tinymce.dom.DomQuery} until Until the matching selector or element.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching parents.
       */
      parentsUntil: function (node, until) {
        return dir(node, "parentNode", until);
      },

      /**
       * Returns a new collection with all next siblings of each item in current collection matching the optional selector.
       *
       * @method nextUntil
       * @param {Element/tinymce.dom.DomQuery} node Node to find next siblings on.
       * @param {String/Element/tinymce.dom.DomQuery} until Until the matching selector or element.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching elements.
       */
      nextUntil: function (node, until) {
        return sibling(node, 'nextSibling', 1, until).slice(1);
      },

      /**
       * Returns a new collection with all previous siblings of each item in current collection matching the optional selector.
       *
       * @method prevUntil
       * @param {Element/tinymce.dom.DomQuery} node Node to find previous siblings on.
       * @param {String/Element/tinymce.dom.DomQuery} until Until the matching selector or element.
       * @return {tinymce.dom.DomQuery} New DomQuery instance with all matching elements.
       */
      prevUntil: function (node, until) {
        return sibling(node, 'previousSibling', 1, until).slice(1);
      }
    }, function (name, fn) {
      DomQuery.fn[name] = function (selector, filter) {
        var self = this, result = [];

        self.each(function () {
          var nodes = fn.call(result, this, selector, result);

          if (nodes) {
            if (DomQuery.isArray(nodes)) {
              result.push.apply(result, nodes);
            } else {
              result.push(nodes);
            }
          }
        });

        // If traversing on multiple elements we might get the same elements twice
        if (this.length > 1) {
          result = DomQuery.unique(result);

          if (name.indexOf('parents') === 0 || name === 'prevUntil') {
            result = result.reverse();
          }
        }

        result = DomQuery(result);

        if (filter) {
          return result.filter(filter);
        }

        return result;
      };
    });

    /**
     * Returns true/false if the current set items matches the selector.
     *
     * @method is
     * @param {String} selector Selector to match the elements against.
     * @return {Boolean} True/false if the current set matches the selector.
     */
    DomQuery.fn.is = function (selector) {
      return !!selector && this.filter(selector).length > 0;
    };

    DomQuery.fn.init.prototype = DomQuery.fn;

    DomQuery.overrideDefaults = function (callback) {
      var defaults;

      function sub(selector, context) {
        defaults = defaults || callback();

        if (arguments.length === 0) {
          selector = defaults.element;
        }

        if (!context) {
          context = defaults.context;
        }

        return new sub.fn.init(selector, context);
      }

      DomQuery.extend(sub, this);

      return sub;
    };

    function appendHooks(targetHooks, prop, hooks) {
      each(hooks, function (name, func) {
        targetHooks[name] = targetHooks[name] || {};
        targetHooks[name][prop] = func;
      });
    }

    if (Env.ie && Env.ie < 8) {
      appendHooks(attrHooks, 'get', {
        maxlength: function (elm) {
          var value = elm.maxLength;

          if (value === 0x7fffffff) {
            return undef;
          }

          return value;
        },

        size: function (elm) {
          var value = elm.size;

          if (value === 20) {
            return undef;
          }

          return value;
        },

        'class': function (elm) {
          return elm.className;
        },

        style: function (elm) {
          var value = elm.style.cssText;

          if (value.length === 0) {
            return undef;
          }

          return value;
        }
      });

      appendHooks(attrHooks, 'set', {
        'class': function (elm, value) {
          elm.className = value;
        },

        style: function (elm, value) {
          elm.style.cssText = value;
        }
      });
    }

    if (Env.ie && Env.ie < 9) {
      /*jshint sub:true */
      /*eslint dot-notation: 0*/
      cssFix['float'] = 'styleFloat';

      appendHooks(cssHooks, 'set', {
        opacity: function (elm, value) {
          var style = elm.style;

          if (value === null || value === '') {
            style.removeAttribute('filter');
          } else {
            style.zoom = 1;
            style.filter = 'alpha(opacity=' + (value * 100) + ')';
          }
        }
      });
    }

    DomQuery.attrHooks = attrHooks;
    DomQuery.cssHooks = cssHooks;

    return DomQuery;
  }
);

/**
 * Styles.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is used to parse CSS styles it also compresses styles to reduce the output size.
 *
 * @example
 * var Styles = new tinymce.html.Styles({
 *    url_converter: function(url) {
 *       return url;
 *    }
 * });
 *
 * styles = Styles.parse('border: 1px solid red');
 * styles.color = 'red';
 *
 * console.log(new tinymce.html.StyleSerializer().serialize(styles));
 *
 * @class tinymce.html.Styles
 * @version 3.4
 */
define(
  'tinymce.core.html.Styles',
  [
  ],
  function () {
    return function (settings, schema) {
      /*jshint maxlen:255 */
      /*eslint max-len:0 */
      var rgbRegExp = /rgb\s*\(\s*([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\s*\)/gi,
        urlOrStrRegExp = /(?:url(?:(?:\(\s*\"([^\"]+)\"\s*\))|(?:\(\s*\'([^\']+)\'\s*\))|(?:\(\s*([^)\s]+)\s*\))))|(?:\'([^\']+)\')|(?:\"([^\"]+)\")/gi,
        styleRegExp = /\s*([^:]+):\s*([^;]+);?/g,
        trimRightRegExp = /\s+$/,
        i, encodingLookup = {}, encodingItems, validStyles, invalidStyles, invisibleChar = '\uFEFF';

      settings = settings || {};

      if (schema) {
        validStyles = schema.getValidStyles();
        invalidStyles = schema.getInvalidStyles();
      }

      encodingItems = ('\\" \\\' \\; \\: ; : ' + invisibleChar).split(' ');
      for (i = 0; i < encodingItems.length; i++) {
        encodingLookup[encodingItems[i]] = invisibleChar + i;
        encodingLookup[invisibleChar + i] = encodingItems[i];
      }

      function toHex(match, r, g, b) {
        function hex(val) {
          val = parseInt(val, 10).toString(16);

          return val.length > 1 ? val : '0' + val; // 0 -> 00
        }

        return '#' + hex(r) + hex(g) + hex(b);
      }

      return {
        /**
         * Parses the specified RGB color value and returns a hex version of that color.
         *
         * @method toHex
         * @param {String} color RGB string value like rgb(1,2,3)
         * @return {String} Hex version of that RGB value like #FF00FF.
         */
        toHex: function (color) {
          return color.replace(rgbRegExp, toHex);
        },

        /**
         * Parses the specified style value into an object collection. This parser will also
         * merge and remove any redundant items that browsers might have added. It will also convert non hex
         * colors to hex values. Urls inside the styles will also be converted to absolute/relative based on settings.
         *
         * @method parse
         * @param {String} css Style value to parse for example: border:1px solid red;.
         * @return {Object} Object representation of that style like {border: '1px solid red'}
         */
        parse: function (css) {
          var styles = {}, matches, name, value, isEncoded, urlConverter = settings.url_converter;
          var urlConverterScope = settings.url_converter_scope || this;

          function compress(prefix, suffix, noJoin) {
            var top, right, bottom, left;

            top = styles[prefix + '-top' + suffix];
            if (!top) {
              return;
            }

            right = styles[prefix + '-right' + suffix];
            if (!right) {
              return;
            }

            bottom = styles[prefix + '-bottom' + suffix];
            if (!bottom) {
              return;
            }

            left = styles[prefix + '-left' + suffix];
            if (!left) {
              return;
            }

            var box = [top, right, bottom, left];
            i = box.length - 1;
            while (i--) {
              if (box[i] !== box[i + 1]) {
                break;
              }
            }

            if (i > -1 && noJoin) {
              return;
            }

            styles[prefix + suffix] = i == -1 ? box[0] : box.join(' ');
            delete styles[prefix + '-top' + suffix];
            delete styles[prefix + '-right' + suffix];
            delete styles[prefix + '-bottom' + suffix];
            delete styles[prefix + '-left' + suffix];
          }

          /**
           * Checks if the specific style can be compressed in other words if all border-width are equal.
           */
          function canCompress(key) {
            var value = styles[key], i;

            if (!value) {
              return;
            }

            value = value.split(' ');
            i = value.length;
            while (i--) {
              if (value[i] !== value[0]) {
                return false;
              }
            }

            styles[key] = value[0];

            return true;
          }

          /**
           * Compresses multiple styles into one style.
           */
          function compress2(target, a, b, c) {
            if (!canCompress(a)) {
              return;
            }

            if (!canCompress(b)) {
              return;
            }

            if (!canCompress(c)) {
              return;
            }

            // Compress
            styles[target] = styles[a] + ' ' + styles[b] + ' ' + styles[c];
            delete styles[a];
            delete styles[b];
            delete styles[c];
          }

          // Encodes the specified string by replacing all \" \' ; : with _<num>
          function encode(str) {
            isEncoded = true;

            return encodingLookup[str];
          }

          // Decodes the specified string by replacing all _<num> with it's original value \" \' etc
          // It will also decode the \" \' if keepSlashes is set to fale or omitted
          function decode(str, keepSlashes) {
            if (isEncoded) {
              str = str.replace(/\uFEFF[0-9]/g, function (str) {
                return encodingLookup[str];
              });
            }

            if (!keepSlashes) {
              str = str.replace(/\\([\'\";:])/g, "$1");
            }

            return str;
          }

          function decodeSingleHexSequence(escSeq) {
            return String.fromCharCode(parseInt(escSeq.slice(1), 16));
          }

          function decodeHexSequences(value) {
            return value.replace(/\\[0-9a-f]+/gi, decodeSingleHexSequence);
          }

          function processUrl(match, url, url2, url3, str, str2) {
            str = str || str2;

            if (str) {
              str = decode(str);

              // Force strings into single quote format
              return "'" + str.replace(/\'/g, "\\'") + "'";
            }

            url = decode(url || url2 || url3);

            if (!settings.allow_script_urls) {
              var scriptUrl = url.replace(/[\s\r\n]+/g, '');

              if (/(java|vb)script:/i.test(scriptUrl)) {
                return "";
              }

              if (!settings.allow_svg_data_urls && /^data:image\/svg/i.test(scriptUrl)) {
                return "";
              }
            }

            // Convert the URL to relative/absolute depending on config
            if (urlConverter) {
              url = urlConverter.call(urlConverterScope, url, 'style');
            }

            // Output new URL format
            return "url('" + url.replace(/\'/g, "\\'") + "')";
          }

          if (css) {
            css = css.replace(/[\u0000-\u001F]/g, '');

            // Encode \" \' % and ; and : inside strings so they don't interfere with the style parsing
            css = css.replace(/\\[\"\';:\uFEFF]/g, encode).replace(/\"[^\"]+\"|\'[^\']+\'/g, function (str) {
              return str.replace(/[;:]/g, encode);
            });

            // Parse styles
            while ((matches = styleRegExp.exec(css))) {
              styleRegExp.lastIndex = matches.index + matches[0].length;
              name = matches[1].replace(trimRightRegExp, '').toLowerCase();
              value = matches[2].replace(trimRightRegExp, '');

              if (name && value) {
                // Decode escaped sequences like \65 -> e
                name = decodeHexSequences(name);
                value = decodeHexSequences(value);

                // Skip properties with double quotes and sequences like \" \' in their names
                // See 'mXSS Attacks: Attacking well-secured Web-Applications by using innerHTML Mutations'
                // https://cure53.de/fp170.pdf
                if (name.indexOf(invisibleChar) !== -1 || name.indexOf('"') !== -1) {
                  continue;
                }

                // Don't allow behavior name or expression/comments within the values
                if (!settings.allow_script_urls && (name == "behavior" || /expression\s*\(|\/\*|\*\//.test(value))) {
                  continue;
                }

                // Opera will produce 700 instead of bold in their style values
                if (name === 'font-weight' && value === '700') {
                  value = 'bold';
                } else if (name === 'color' || name === 'background-color') { // Lowercase colors like RED
                  value = value.toLowerCase();
                }

                // Convert RGB colors to HEX
                value = value.replace(rgbRegExp, toHex);

                // Convert URLs and force them into url('value') format
                value = value.replace(urlOrStrRegExp, processUrl);
                styles[name] = isEncoded ? decode(value, true) : value;
              }
            }
            // Compress the styles to reduce it's size for example IE will expand styles
            compress("border", "", true);
            compress("border", "-width");
            compress("border", "-color");
            compress("border", "-style");
            compress("padding", "");
            compress("margin", "");
            compress2('border', 'border-width', 'border-style', 'border-color');

            // Remove pointless border, IE produces these
            if (styles.border === 'medium none') {
              delete styles.border;
            }

            // IE 11 will produce a border-image: none when getting the style attribute from <p style="border: 1px solid red"></p>
            // So let us assume it shouldn't be there
            if (styles['border-image'] === 'none') {
              delete styles['border-image'];
            }
          }

          return styles;
        },

        /**
         * Serializes the specified style object into a string.
         *
         * @method serialize
         * @param {Object} styles Object to serialize as string for example: {border: '1px solid red'}
         * @param {String} elementName Optional element name, if specified only the styles that matches the schema will be serialized.
         * @return {String} String representation of the style object for example: border: 1px solid red.
         */
        serialize: function (styles, elementName) {
          var css = '', name, value;

          function serializeStyles(name) {
            var styleList, i, l, value;

            styleList = validStyles[name];
            if (styleList) {
              for (i = 0, l = styleList.length; i < l; i++) {
                name = styleList[i];
                value = styles[name];

                if (value) {
                  css += (css.length > 0 ? ' ' : '') + name + ': ' + value + ';';
                }
              }
            }
          }

          function isValid(name, elementName) {
            var styleMap;

            styleMap = invalidStyles['*'];
            if (styleMap && styleMap[name]) {
              return false;
            }

            styleMap = invalidStyles[elementName];
            if (styleMap && styleMap[name]) {
              return false;
            }

            return true;
          }

          // Serialize styles according to schema
          if (elementName && validStyles) {
            // Serialize global styles and element specific styles
            serializeStyles('*');
            serializeStyles(elementName);
          } else {
            // Output the styles in the order they are inside the object
            for (name in styles) {
              value = styles[name];

              if (value && (!invalidStyles || isValid(name, elementName))) {
                css += (css.length > 0 ? ' ' : '') + name + ': ' + value + ';';
              }
            }
          }

          return css;
        }
      };
    };
  }
);

/**
 * TreeWalker.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * TreeWalker class enables you to walk the DOM in a linear manner.
 *
 * @class tinymce.dom.TreeWalker
 * @example
 * var walker = new tinymce.dom.TreeWalker(startNode);
 *
 * do {
 *     console.log(walker.current());
 * } while (walker.next());
 */
define(
  'tinymce.core.dom.TreeWalker',
  [
  ],
  function () {
    /**
     * Constructs a new TreeWalker instance.
     *
     * @constructor
     * @method TreeWalker
     * @param {Node} startNode Node to start walking from.
     * @param {node} rootNode Optional root node to never walk out of.
     */
    return function (startNode, rootNode) {
      var node = startNode;

      function findSibling(node, startName, siblingName, shallow) {
        var sibling, parent;

        if (node) {
          // Walk into nodes if it has a start
          if (!shallow && node[startName]) {
            return node[startName];
          }

          // Return the sibling if it has one
          if (node != rootNode) {
            sibling = node[siblingName];
            if (sibling) {
              return sibling;
            }

            // Walk up the parents to look for siblings
            for (parent = node.parentNode; parent && parent != rootNode; parent = parent.parentNode) {
              sibling = parent[siblingName];
              if (sibling) {
                return sibling;
              }
            }
          }
        }
      }

      function findPreviousNode(node, startName, siblingName, shallow) {
        var sibling, parent, child;

        if (node) {
          sibling = node[siblingName];
          if (rootNode && sibling === rootNode) {
            return;
          }

          if (sibling) {
            if (!shallow) {
              // Walk up the parents to look for siblings
              for (child = sibling[startName]; child; child = child[startName]) {
                if (!child[startName]) {
                  return child;
                }
              }
            }

            return sibling;
          }

          parent = node.parentNode;
          if (parent && parent !== rootNode) {
            return parent;
          }
        }
      }

      /**
       * Returns the current node.
       *
       * @method current
       * @return {Node} Current node where the walker is.
       */
      this.current = function () {
        return node;
      };

      /**
       * Walks to the next node in tree.
       *
       * @method next
       * @return {Node} Current node where the walker is after moving to the next node.
       */
      this.next = function (shallow) {
        node = findSibling(node, 'firstChild', 'nextSibling', shallow);
        return node;
      };

      /**
       * Walks to the previous node in tree.
       *
       * @method prev
       * @return {Node} Current node where the walker is after moving to the previous node.
       */
      this.prev = function (shallow) {
        node = findSibling(node, 'lastChild', 'previousSibling', shallow);
        return node;
      };

      this.prev2 = function (shallow) {
        node = findPreviousNode(node, 'lastChild', 'previousSibling', shallow);
        return node;
      };
    };
  }
);

/**
 * Entities.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*jshint bitwise:false */
/*eslint no-bitwise:0 */

/**
 * Entity encoder class.
 *
 * @class tinymce.html.Entities
 * @static
 * @version 3.4
 */
define(
  'tinymce.core.html.Entities',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    var makeMap = Tools.makeMap;

    var namedEntities, baseEntities, reverseEntities,
      attrsCharsRegExp = /[&<>\"\u0060\u007E-\uD7FF\uE000-\uFFEF]|[\uD800-\uDBFF][\uDC00-\uDFFF]/g,
      textCharsRegExp = /[<>&\u007E-\uD7FF\uE000-\uFFEF]|[\uD800-\uDBFF][\uDC00-\uDFFF]/g,
      rawCharsRegExp = /[<>&\"\']/g,
      entityRegExp = /&#([a-z0-9]+);?|&([a-z0-9]+);/gi,
      asciiMap = {
        128: "\u20AC", 130: "\u201A", 131: "\u0192", 132: "\u201E", 133: "\u2026", 134: "\u2020",
        135: "\u2021", 136: "\u02C6", 137: "\u2030", 138: "\u0160", 139: "\u2039", 140: "\u0152",
        142: "\u017D", 145: "\u2018", 146: "\u2019", 147: "\u201C", 148: "\u201D", 149: "\u2022",
        150: "\u2013", 151: "\u2014", 152: "\u02DC", 153: "\u2122", 154: "\u0161", 155: "\u203A",
        156: "\u0153", 158: "\u017E", 159: "\u0178"
      };

    // Raw entities
    baseEntities = {
      '\"': '&quot;', // Needs to be escaped since the YUI compressor would otherwise break the code
      "'": '&#39;',
      '<': '&lt;',
      '>': '&gt;',
      '&': '&amp;',
      '\u0060': '&#96;'
    };

    // Reverse lookup table for raw entities
    reverseEntities = {
      '&lt;': '<',
      '&gt;': '>',
      '&amp;': '&',
      '&quot;': '"',
      '&apos;': "'"
    };

    // Decodes text by using the browser
    function nativeDecode(text) {
      var elm;

      elm = document.createElement("div");
      elm.innerHTML = text;

      return elm.textContent || elm.innerText || text;
    }

    // Build a two way lookup table for the entities
    function buildEntitiesLookup(items, radix) {
      var i, chr, entity, lookup = {};

      if (items) {
        items = items.split(',');
        radix = radix || 10;

        // Build entities lookup table
        for (i = 0; i < items.length; i += 2) {
          chr = String.fromCharCode(parseInt(items[i], radix));

          // Only add non base entities
          if (!baseEntities[chr]) {
            entity = '&' + items[i + 1] + ';';
            lookup[chr] = entity;
            lookup[entity] = chr;
          }
        }

        return lookup;
      }
    }

    // Unpack entities lookup where the numbers are in radix 32 to reduce the size
    namedEntities = buildEntitiesLookup(
      '50,nbsp,51,iexcl,52,cent,53,pound,54,curren,55,yen,56,brvbar,57,sect,58,uml,59,copy,' +
      '5a,ordf,5b,laquo,5c,not,5d,shy,5e,reg,5f,macr,5g,deg,5h,plusmn,5i,sup2,5j,sup3,5k,acute,' +
      '5l,micro,5m,para,5n,middot,5o,cedil,5p,sup1,5q,ordm,5r,raquo,5s,frac14,5t,frac12,5u,frac34,' +
      '5v,iquest,60,Agrave,61,Aacute,62,Acirc,63,Atilde,64,Auml,65,Aring,66,AElig,67,Ccedil,' +
      '68,Egrave,69,Eacute,6a,Ecirc,6b,Euml,6c,Igrave,6d,Iacute,6e,Icirc,6f,Iuml,6g,ETH,6h,Ntilde,' +
      '6i,Ograve,6j,Oacute,6k,Ocirc,6l,Otilde,6m,Ouml,6n,times,6o,Oslash,6p,Ugrave,6q,Uacute,' +
      '6r,Ucirc,6s,Uuml,6t,Yacute,6u,THORN,6v,szlig,70,agrave,71,aacute,72,acirc,73,atilde,74,auml,' +
      '75,aring,76,aelig,77,ccedil,78,egrave,79,eacute,7a,ecirc,7b,euml,7c,igrave,7d,iacute,7e,icirc,' +
      '7f,iuml,7g,eth,7h,ntilde,7i,ograve,7j,oacute,7k,ocirc,7l,otilde,7m,ouml,7n,divide,7o,oslash,' +
      '7p,ugrave,7q,uacute,7r,ucirc,7s,uuml,7t,yacute,7u,thorn,7v,yuml,ci,fnof,sh,Alpha,si,Beta,' +
      'sj,Gamma,sk,Delta,sl,Epsilon,sm,Zeta,sn,Eta,so,Theta,sp,Iota,sq,Kappa,sr,Lambda,ss,Mu,' +
      'st,Nu,su,Xi,sv,Omicron,t0,Pi,t1,Rho,t3,Sigma,t4,Tau,t5,Upsilon,t6,Phi,t7,Chi,t8,Psi,' +
      't9,Omega,th,alpha,ti,beta,tj,gamma,tk,delta,tl,epsilon,tm,zeta,tn,eta,to,theta,tp,iota,' +
      'tq,kappa,tr,lambda,ts,mu,tt,nu,tu,xi,tv,omicron,u0,pi,u1,rho,u2,sigmaf,u3,sigma,u4,tau,' +
      'u5,upsilon,u6,phi,u7,chi,u8,psi,u9,omega,uh,thetasym,ui,upsih,um,piv,812,bull,816,hellip,' +
      '81i,prime,81j,Prime,81u,oline,824,frasl,88o,weierp,88h,image,88s,real,892,trade,89l,alefsym,' +
      '8cg,larr,8ch,uarr,8ci,rarr,8cj,darr,8ck,harr,8dl,crarr,8eg,lArr,8eh,uArr,8ei,rArr,8ej,dArr,' +
      '8ek,hArr,8g0,forall,8g2,part,8g3,exist,8g5,empty,8g7,nabla,8g8,isin,8g9,notin,8gb,ni,8gf,prod,' +
      '8gh,sum,8gi,minus,8gn,lowast,8gq,radic,8gt,prop,8gu,infin,8h0,ang,8h7,and,8h8,or,8h9,cap,8ha,cup,' +
      '8hb,int,8hk,there4,8hs,sim,8i5,cong,8i8,asymp,8j0,ne,8j1,equiv,8j4,le,8j5,ge,8k2,sub,8k3,sup,8k4,' +
      'nsub,8k6,sube,8k7,supe,8kl,oplus,8kn,otimes,8l5,perp,8m5,sdot,8o8,lceil,8o9,rceil,8oa,lfloor,8ob,' +
      'rfloor,8p9,lang,8pa,rang,9ea,loz,9j0,spades,9j3,clubs,9j5,hearts,9j6,diams,ai,OElig,aj,oelig,b0,' +
      'Scaron,b1,scaron,bo,Yuml,m6,circ,ms,tilde,802,ensp,803,emsp,809,thinsp,80c,zwnj,80d,zwj,80e,lrm,' +
      '80f,rlm,80j,ndash,80k,mdash,80o,lsquo,80p,rsquo,80q,sbquo,80s,ldquo,80t,rdquo,80u,bdquo,810,dagger,' +
      '811,Dagger,81g,permil,81p,lsaquo,81q,rsaquo,85c,euro', 32);

    var Entities = {
      /**
       * Encodes the specified string using raw entities. This means only the required XML base entities will be encoded.
       *
       * @method encodeRaw
       * @param {String} text Text to encode.
       * @param {Boolean} attr Optional flag to specify if the text is attribute contents.
       * @return {String} Entity encoded text.
       */
      encodeRaw: function (text, attr) {
        return text.replace(attr ? attrsCharsRegExp : textCharsRegExp, function (chr) {
          return baseEntities[chr] || chr;
        });
      },

      /**
       * Encoded the specified text with both the attributes and text entities. This function will produce larger text contents
       * since it doesn't know if the context is within a attribute or text node. This was added for compatibility
       * and is exposed as the DOMUtils.encode function.
       *
       * @method encodeAllRaw
       * @param {String} text Text to encode.
       * @return {String} Entity encoded text.
       */
      encodeAllRaw: function (text) {
        return ('' + text).replace(rawCharsRegExp, function (chr) {
          return baseEntities[chr] || chr;
        });
      },

      /**
       * Encodes the specified string using numeric entities. The core entities will be
       * encoded as named ones but all non lower ascii characters will be encoded into numeric entities.
       *
       * @method encodeNumeric
       * @param {String} text Text to encode.
       * @param {Boolean} attr Optional flag to specify if the text is attribute contents.
       * @return {String} Entity encoded text.
       */
      encodeNumeric: function (text, attr) {
        return text.replace(attr ? attrsCharsRegExp : textCharsRegExp, function (chr) {
          // Multi byte sequence convert it to a single entity
          if (chr.length > 1) {
            return '&#' + (((chr.charCodeAt(0) - 0xD800) * 0x400) + (chr.charCodeAt(1) - 0xDC00) + 0x10000) + ';';
          }

          return baseEntities[chr] || '&#' + chr.charCodeAt(0) + ';';
        });
      },

      /**
       * Encodes the specified string using named entities. The core entities will be encoded
       * as named ones but all non lower ascii characters will be encoded into named entities.
       *
       * @method encodeNamed
       * @param {String} text Text to encode.
       * @param {Boolean} attr Optional flag to specify if the text is attribute contents.
       * @param {Object} entities Optional parameter with entities to use.
       * @return {String} Entity encoded text.
       */
      encodeNamed: function (text, attr, entities) {
        entities = entities || namedEntities;

        return text.replace(attr ? attrsCharsRegExp : textCharsRegExp, function (chr) {
          return baseEntities[chr] || entities[chr] || chr;
        });
      },

      /**
       * Returns an encode function based on the name(s) and it's optional entities.
       *
       * @method getEncodeFunc
       * @param {String} name Comma separated list of encoders for example named,numeric.
       * @param {String} entities Optional parameter with entities to use instead of the built in set.
       * @return {function} Encode function to be used.
       */
      getEncodeFunc: function (name, entities) {
        entities = buildEntitiesLookup(entities) || namedEntities;

        function encodeNamedAndNumeric(text, attr) {
          return text.replace(attr ? attrsCharsRegExp : textCharsRegExp, function (chr) {
            if (baseEntities[chr] !== undefined) {
              return baseEntities[chr];
            }

            if (entities[chr] !== undefined) {
              return entities[chr];
            }

            // Convert multi-byte sequences to a single entity.
            if (chr.length > 1) {
              return '&#' + (((chr.charCodeAt(0) - 0xD800) * 0x400) + (chr.charCodeAt(1) - 0xDC00) + 0x10000) + ';';
            }

            return '&#' + chr.charCodeAt(0) + ';';
          });
        }

        function encodeCustomNamed(text, attr) {
          return Entities.encodeNamed(text, attr, entities);
        }

        // Replace + with , to be compatible with previous TinyMCE versions
        name = makeMap(name.replace(/\+/g, ','));

        // Named and numeric encoder
        if (name.named && name.numeric) {
          return encodeNamedAndNumeric;
        }

        // Named encoder
        if (name.named) {
          // Custom names
          if (entities) {
            return encodeCustomNamed;
          }

          return Entities.encodeNamed;
        }

        // Numeric
        if (name.numeric) {
          return Entities.encodeNumeric;
        }

        // Raw encoder
        return Entities.encodeRaw;
      },

      /**
       * Decodes the specified string, this will replace entities with raw UTF characters.
       *
       * @method decode
       * @param {String} text Text to entity decode.
       * @return {String} Entity decoded string.
       */
      decode: function (text) {
        return text.replace(entityRegExp, function (all, numeric) {
          if (numeric) {
            if (numeric.charAt(0).toLowerCase() === 'x') {
              numeric = parseInt(numeric.substr(1), 16);
            } else {
              numeric = parseInt(numeric, 10);
            }

            // Support upper UTF
            if (numeric > 0xFFFF) {
              numeric -= 0x10000;

              return String.fromCharCode(0xD800 + (numeric >> 10), 0xDC00 + (numeric & 0x3FF));
            }

            return asciiMap[numeric] || String.fromCharCode(numeric);
          }

          return reverseEntities[all] || namedEntities[all] || nativeDecode(all);
        });
      }
    };

    return Entities;
  }
);

/**
 * Range.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Old IE Range.
 *
 * @private
 * @class tinymce.dom.Range
 */
define(
  'tinymce.core.dom.Range',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    // Range constructor
    function Range(dom) {
      var self = this,
        doc = dom.doc,
        EXTRACT = 0,
        CLONE = 1,
        DELETE = 2,
        TRUE = true,
        FALSE = false,
        START_OFFSET = 'startOffset',
        START_CONTAINER = 'startContainer',
        END_CONTAINER = 'endContainer',
        END_OFFSET = 'endOffset',
        extend = Tools.extend,
        nodeIndex = dom.nodeIndex;

      function createDocumentFragment() {
        return doc.createDocumentFragment();
      }

      function setStart(n, o) {
        _setEndPoint(TRUE, n, o);
      }

      function setEnd(n, o) {
        _setEndPoint(FALSE, n, o);
      }

      function setStartBefore(n) {
        setStart(n.parentNode, nodeIndex(n));
      }

      function setStartAfter(n) {
        setStart(n.parentNode, nodeIndex(n) + 1);
      }

      function setEndBefore(n) {
        setEnd(n.parentNode, nodeIndex(n));
      }

      function setEndAfter(n) {
        setEnd(n.parentNode, nodeIndex(n) + 1);
      }

      function collapse(ts) {
        if (ts) {
          self[END_CONTAINER] = self[START_CONTAINER];
          self[END_OFFSET] = self[START_OFFSET];
        } else {
          self[START_CONTAINER] = self[END_CONTAINER];
          self[START_OFFSET] = self[END_OFFSET];
        }

        self.collapsed = TRUE;
      }

      function selectNode(n) {
        setStartBefore(n);
        setEndAfter(n);
      }

      function selectNodeContents(n) {
        setStart(n, 0);
        setEnd(n, n.nodeType === 1 ? n.childNodes.length : n.nodeValue.length);
      }

      function compareBoundaryPoints(h, r) {
        var sc = self[START_CONTAINER], so = self[START_OFFSET], ec = self[END_CONTAINER], eo = self[END_OFFSET],
          rsc = r.startContainer, rso = r.startOffset, rec = r.endContainer, reo = r.endOffset;

        // Check START_TO_START
        if (h === 0) {
          return _compareBoundaryPoints(sc, so, rsc, rso);
        }

        // Check START_TO_END
        if (h === 1) {
          return _compareBoundaryPoints(ec, eo, rsc, rso);
        }

        // Check END_TO_END
        if (h === 2) {
          return _compareBoundaryPoints(ec, eo, rec, reo);
        }

        // Check END_TO_START
        if (h === 3) {
          return _compareBoundaryPoints(sc, so, rec, reo);
        }
      }

      function deleteContents() {
        _traverse(DELETE);
      }

      function extractContents() {
        return _traverse(EXTRACT);
      }

      function cloneContents() {
        return _traverse(CLONE);
      }

      function insertNode(n) {
        var startContainer = this[START_CONTAINER],
          startOffset = this[START_OFFSET], nn, o;

        // Node is TEXT_NODE or CDATA
        if ((startContainer.nodeType === 3 || startContainer.nodeType === 4) && startContainer.nodeValue) {
          if (!startOffset) {
            // At the start of text
            startContainer.parentNode.insertBefore(n, startContainer);
          } else if (startOffset >= startContainer.nodeValue.length) {
            // At the end of text
            dom.insertAfter(n, startContainer);
          } else {
            // Middle, need to split
            nn = startContainer.splitText(startOffset);
            startContainer.parentNode.insertBefore(n, nn);
          }
        } else {
          // Insert element node
          if (startContainer.childNodes.length > 0) {
            o = startContainer.childNodes[startOffset];
          }

          if (o) {
            startContainer.insertBefore(n, o);
          } else {
            if (startContainer.nodeType == 3) {
              dom.insertAfter(n, startContainer);
            } else {
              startContainer.appendChild(n);
            }
          }
        }
      }

      function surroundContents(n) {
        var f = self.extractContents();

        self.insertNode(n);
        n.appendChild(f);
        self.selectNode(n);
      }

      function cloneRange() {
        return extend(new Range(dom), {
          startContainer: self[START_CONTAINER],
          startOffset: self[START_OFFSET],
          endContainer: self[END_CONTAINER],
          endOffset: self[END_OFFSET],
          collapsed: self.collapsed,
          commonAncestorContainer: self.commonAncestorContainer
        });
      }

      // Private methods

      function _getSelectedNode(container, offset) {
        var child;

        // TEXT_NODE
        if (container.nodeType == 3) {
          return container;
        }

        if (offset < 0) {
          return container;
        }

        child = container.firstChild;
        while (child && offset > 0) {
          --offset;
          child = child.nextSibling;
        }

        if (child) {
          return child;
        }

        return container;
      }

      function _isCollapsed() {
        return (self[START_CONTAINER] == self[END_CONTAINER] && self[START_OFFSET] == self[END_OFFSET]);
      }

      function _compareBoundaryPoints(containerA, offsetA, containerB, offsetB) {
        var c, offsetC, n, cmnRoot, childA, childB;

        // In the first case the boundary-points have the same container. A is before B
        // if its offset is less than the offset of B, A is equal to B if its offset is
        // equal to the offset of B, and A is after B if its offset is greater than the
        // offset of B.
        if (containerA == containerB) {
          if (offsetA == offsetB) {
            return 0; // equal
          }

          if (offsetA < offsetB) {
            return -1; // before
          }

          return 1; // after
        }

        // In the second case a child node C of the container of A is an ancestor
        // container of B. In this case, A is before B if the offset of A is less than or
        // equal to the index of the child node C and A is after B otherwise.
        c = containerB;
        while (c && c.parentNode != containerA) {
          c = c.parentNode;
        }

        if (c) {
          offsetC = 0;
          n = containerA.firstChild;

          while (n != c && offsetC < offsetA) {
            offsetC++;
            n = n.nextSibling;
          }

          if (offsetA <= offsetC) {
            return -1; // before
          }

          return 1; // after
        }

        // In the third case a child node C of the container of B is an ancestor container
        // of A. In this case, A is before B if the index of the child node C is less than
        // the offset of B and A is after B otherwise.
        c = containerA;
        while (c && c.parentNode != containerB) {
          c = c.parentNode;
        }

        if (c) {
          offsetC = 0;
          n = containerB.firstChild;

          while (n != c && offsetC < offsetB) {
            offsetC++;
            n = n.nextSibling;
          }

          if (offsetC < offsetB) {
            return -1; // before
          }

          return 1; // after
        }

        // In the fourth case, none of three other cases hold: the containers of A and B
        // are siblings or descendants of sibling nodes. In this case, A is before B if
        // the container of A is before the container of B in a pre-order traversal of the
        // Ranges' context tree and A is after B otherwise.
        cmnRoot = dom.findCommonAncestor(containerA, containerB);
        childA = containerA;

        while (childA && childA.parentNode != cmnRoot) {
          childA = childA.parentNode;
        }

        if (!childA) {
          childA = cmnRoot;
        }

        childB = containerB;
        while (childB && childB.parentNode != cmnRoot) {
          childB = childB.parentNode;
        }

        if (!childB) {
          childB = cmnRoot;
        }

        if (childA == childB) {
          return 0; // equal
        }

        n = cmnRoot.firstChild;
        while (n) {
          if (n == childA) {
            return -1; // before
          }

          if (n == childB) {
            return 1; // after
          }

          n = n.nextSibling;
        }
      }

      function _setEndPoint(st, n, o) {
        var ec, sc;

        if (st) {
          self[START_CONTAINER] = n;
          self[START_OFFSET] = o;
        } else {
          self[END_CONTAINER] = n;
          self[END_OFFSET] = o;
        }

        // If one boundary-point of a Range is set to have a root container
        // other than the current one for the Range, the Range is collapsed to
        // the new position. This enforces the restriction that both boundary-
        // points of a Range must have the same root container.
        ec = self[END_CONTAINER];
        while (ec.parentNode) {
          ec = ec.parentNode;
        }

        sc = self[START_CONTAINER];
        while (sc.parentNode) {
          sc = sc.parentNode;
        }

        if (sc == ec) {
          // The start position of a Range is guaranteed to never be after the
          // end position. To enforce this restriction, if the start is set to
          // be at a position after the end, the Range is collapsed to that
          // position.
          if (_compareBoundaryPoints(self[START_CONTAINER], self[START_OFFSET], self[END_CONTAINER], self[END_OFFSET]) > 0) {
            self.collapse(st);
          }
        } else {
          self.collapse(st);
        }

        self.collapsed = _isCollapsed();
        self.commonAncestorContainer = dom.findCommonAncestor(self[START_CONTAINER], self[END_CONTAINER]);
      }

      function _traverse(how) {
        var c, endContainerDepth = 0, startContainerDepth = 0, p, depthDiff, startNode, endNode, sp, ep;

        if (self[START_CONTAINER] == self[END_CONTAINER]) {
          return _traverseSameContainer(how);
        }

        for (c = self[END_CONTAINER], p = c.parentNode; p; c = p, p = p.parentNode) {
          if (p == self[START_CONTAINER]) {
            return _traverseCommonStartContainer(c, how);
          }

          ++endContainerDepth;
        }

        for (c = self[START_CONTAINER], p = c.parentNode; p; c = p, p = p.parentNode) {
          if (p == self[END_CONTAINER]) {
            return _traverseCommonEndContainer(c, how);
          }

          ++startContainerDepth;
        }

        depthDiff = startContainerDepth - endContainerDepth;

        startNode = self[START_CONTAINER];
        while (depthDiff > 0) {
          startNode = startNode.parentNode;
          depthDiff--;
        }

        endNode = self[END_CONTAINER];
        while (depthDiff < 0) {
          endNode = endNode.parentNode;
          depthDiff++;
        }

        // ascend the ancestor hierarchy until we have a common parent.
        for (sp = startNode.parentNode, ep = endNode.parentNode; sp != ep; sp = sp.parentNode, ep = ep.parentNode) {
          startNode = sp;
          endNode = ep;
        }

        return _traverseCommonAncestors(startNode, endNode, how);
      }

      function _traverseSameContainer(how) {
        var frag, s, sub, n, cnt, sibling, xferNode, start, len;

        if (how != DELETE) {
          frag = createDocumentFragment();
        }

        // If selection is empty, just return the fragment
        if (self[START_OFFSET] == self[END_OFFSET]) {
          return frag;
        }

        // Text node needs special case handling
        if (self[START_CONTAINER].nodeType == 3) { // TEXT_NODE
          // get the substring
          s = self[START_CONTAINER].nodeValue;
          sub = s.substring(self[START_OFFSET], self[END_OFFSET]);

          // set the original text node to its new value
          if (how != CLONE) {
            n = self[START_CONTAINER];
            start = self[START_OFFSET];
            len = self[END_OFFSET] - self[START_OFFSET];

            if (start === 0 && len >= n.nodeValue.length - 1) {
              n.parentNode.removeChild(n);
            } else {
              n.deleteData(start, len);
            }

            // Nothing is partially selected, so collapse to start point
            self.collapse(TRUE);
          }

          if (how == DELETE) {
            return;
          }

          if (sub.length > 0) {
            frag.appendChild(doc.createTextNode(sub));
          }

          return frag;
        }

        // Copy nodes between the start/end offsets.
        n = _getSelectedNode(self[START_CONTAINER], self[START_OFFSET]);
        cnt = self[END_OFFSET] - self[START_OFFSET];

        while (n && cnt > 0) {
          sibling = n.nextSibling;
          xferNode = _traverseFullySelected(n, how);

          if (frag) {
            frag.appendChild(xferNode);
          }

          --cnt;
          n = sibling;
        }

        // Nothing is partially selected, so collapse to start point
        if (how != CLONE) {
          self.collapse(TRUE);
        }

        return frag;
      }

      function _traverseCommonStartContainer(endAncestor, how) {
        var frag, n, endIdx, cnt, sibling, xferNode;

        if (how != DELETE) {
          frag = createDocumentFragment();
        }

        n = _traverseRightBoundary(endAncestor, how);

        if (frag) {
          frag.appendChild(n);
        }

        endIdx = nodeIndex(endAncestor);
        cnt = endIdx - self[START_OFFSET];

        if (cnt <= 0) {
          // Collapse to just before the endAncestor, which
          // is partially selected.
          if (how != CLONE) {
            self.setEndBefore(endAncestor);
            self.collapse(FALSE);
          }

          return frag;
        }

        n = endAncestor.previousSibling;
        while (cnt > 0) {
          sibling = n.previousSibling;
          xferNode = _traverseFullySelected(n, how);

          if (frag) {
            frag.insertBefore(xferNode, frag.firstChild);
          }

          --cnt;
          n = sibling;
        }

        // Collapse to just before the endAncestor, which
        // is partially selected.
        if (how != CLONE) {
          self.setEndBefore(endAncestor);
          self.collapse(FALSE);
        }

        return frag;
      }

      function _traverseCommonEndContainer(startAncestor, how) {
        var frag, startIdx, n, cnt, sibling, xferNode;

        if (how != DELETE) {
          frag = createDocumentFragment();
        }

        n = _traverseLeftBoundary(startAncestor, how);
        if (frag) {
          frag.appendChild(n);
        }

        startIdx = nodeIndex(startAncestor);
        ++startIdx; // Because we already traversed it

        cnt = self[END_OFFSET] - startIdx;
        n = startAncestor.nextSibling;
        while (n && cnt > 0) {
          sibling = n.nextSibling;
          xferNode = _traverseFullySelected(n, how);

          if (frag) {
            frag.appendChild(xferNode);
          }

          --cnt;
          n = sibling;
        }

        if (how != CLONE) {
          self.setStartAfter(startAncestor);
          self.collapse(TRUE);
        }

        return frag;
      }

      function _traverseCommonAncestors(startAncestor, endAncestor, how) {
        var n, frag, startOffset, endOffset, cnt, sibling, nextSibling;

        if (how != DELETE) {
          frag = createDocumentFragment();
        }

        n = _traverseLeftBoundary(startAncestor, how);
        if (frag) {
          frag.appendChild(n);
        }

        startOffset = nodeIndex(startAncestor);
        endOffset = nodeIndex(endAncestor);
        ++startOffset;

        cnt = endOffset - startOffset;
        sibling = startAncestor.nextSibling;

        while (cnt > 0) {
          nextSibling = sibling.nextSibling;
          n = _traverseFullySelected(sibling, how);

          if (frag) {
            frag.appendChild(n);
          }

          sibling = nextSibling;
          --cnt;
        }

        n = _traverseRightBoundary(endAncestor, how);

        if (frag) {
          frag.appendChild(n);
        }

        if (how != CLONE) {
          self.setStartAfter(startAncestor);
          self.collapse(TRUE);
        }

        return frag;
      }

      function _traverseRightBoundary(root, how) {
        var next = _getSelectedNode(self[END_CONTAINER], self[END_OFFSET] - 1), parent, clonedParent;
        var prevSibling, clonedChild, clonedGrandParent, isFullySelected = next != self[END_CONTAINER];

        if (next == root) {
          return _traverseNode(next, isFullySelected, FALSE, how);
        }

        parent = next.parentNode;
        clonedParent = _traverseNode(parent, FALSE, FALSE, how);

        while (parent) {
          while (next) {
            prevSibling = next.previousSibling;
            clonedChild = _traverseNode(next, isFullySelected, FALSE, how);

            if (how != DELETE) {
              clonedParent.insertBefore(clonedChild, clonedParent.firstChild);
            }

            isFullySelected = TRUE;
            next = prevSibling;
          }

          if (parent == root) {
            return clonedParent;
          }

          next = parent.previousSibling;
          parent = parent.parentNode;

          clonedGrandParent = _traverseNode(parent, FALSE, FALSE, how);

          if (how != DELETE) {
            clonedGrandParent.appendChild(clonedParent);
          }

          clonedParent = clonedGrandParent;
        }
      }

      function _traverseLeftBoundary(root, how) {
        var next = _getSelectedNode(self[START_CONTAINER], self[START_OFFSET]), isFullySelected = next != self[START_CONTAINER];
        var parent, clonedParent, nextSibling, clonedChild, clonedGrandParent;

        if (next == root) {
          return _traverseNode(next, isFullySelected, TRUE, how);
        }

        parent = next.parentNode;
        clonedParent = _traverseNode(parent, FALSE, TRUE, how);

        while (parent) {
          while (next) {
            nextSibling = next.nextSibling;
            clonedChild = _traverseNode(next, isFullySelected, TRUE, how);

            if (how != DELETE) {
              clonedParent.appendChild(clonedChild);
            }

            isFullySelected = TRUE;
            next = nextSibling;
          }

          if (parent == root) {
            return clonedParent;
          }

          next = parent.nextSibling;
          parent = parent.parentNode;

          clonedGrandParent = _traverseNode(parent, FALSE, TRUE, how);

          if (how != DELETE) {
            clonedGrandParent.appendChild(clonedParent);
          }

          clonedParent = clonedGrandParent;
        }
      }

      function _traverseNode(n, isFullySelected, isLeft, how) {
        var txtValue, newNodeValue, oldNodeValue, offset, newNode;

        if (isFullySelected) {
          return _traverseFullySelected(n, how);
        }

        // TEXT_NODE
        if (n.nodeType == 3) {
          txtValue = n.nodeValue;

          if (isLeft) {
            offset = self[START_OFFSET];
            newNodeValue = txtValue.substring(offset);
            oldNodeValue = txtValue.substring(0, offset);
          } else {
            offset = self[END_OFFSET];
            newNodeValue = txtValue.substring(0, offset);
            oldNodeValue = txtValue.substring(offset);
          }

          if (how != CLONE) {
            n.nodeValue = oldNodeValue;
          }

          if (how == DELETE) {
            return;
          }

          newNode = dom.clone(n, FALSE);
          newNode.nodeValue = newNodeValue;

          return newNode;
        }

        if (how == DELETE) {
          return;
        }

        return dom.clone(n, FALSE);
      }

      function _traverseFullySelected(n, how) {
        if (how != DELETE) {
          return how == CLONE ? dom.clone(n, TRUE) : n;
        }

        n.parentNode.removeChild(n);
      }

      function toStringIE() {
        return dom.create('body', null, cloneContents()).outerText;
      }

      extend(self, {
        // Initial states
        startContainer: doc,
        startOffset: 0,
        endContainer: doc,
        endOffset: 0,
        collapsed: TRUE,
        commonAncestorContainer: doc,

        // Range constants
        START_TO_START: 0,
        START_TO_END: 1,
        END_TO_END: 2,
        END_TO_START: 3,

        // Public methods
        setStart: setStart,
        setEnd: setEnd,
        setStartBefore: setStartBefore,
        setStartAfter: setStartAfter,
        setEndBefore: setEndBefore,
        setEndAfter: setEndAfter,
        collapse: collapse,
        selectNode: selectNode,
        selectNodeContents: selectNodeContents,
        compareBoundaryPoints: compareBoundaryPoints,
        deleteContents: deleteContents,
        extractContents: extractContents,
        cloneContents: cloneContents,
        insertNode: insertNode,
        surroundContents: surroundContents,
        cloneRange: cloneRange,
        toStringIE: toStringIE
      });

      return self;
    }

    // Older IE versions doesn't let you override toString by it's constructor so we have to stick it in the prototype
    Range.prototype.toString = function () {
      return this.toStringIE();
    };

    return Range;
  }
);

defineGlobal("global!Array", Array);
defineGlobal("global!Error", Error);
define(
  'ephox.katamari.api.Fun',

  [
    'global!Array',
    'global!Error'
  ],

  function (Array, Error) {

    var noop = function () { };

    var compose = function (fa, fb) {
      return function () {
        return fa(fb.apply(null, arguments));
      };
    };

    var constant = function (value) {
      return function () {
        return value;
      };
    };

    var identity = function (x) {
      return x;
    };

    var tripleEquals = function(a, b) {
      return a === b;
    };

    // Don't use array slice(arguments), makes the whole function unoptimisable on Chrome
    var curry = function (f) {
      // equivalent to arguments.slice(1)
      // starting at 1 because 0 is the f, makes things tricky.
      // Pay attention to what variable is where, and the -1 magic.
      // thankfully, we have tests for this.
      var args = new Array(arguments.length - 1);
      for (var i = 1; i < arguments.length; i++) args[i-1] = arguments[i];

      return function () {
        var newArgs = new Array(arguments.length);
        for (var j = 0; j < newArgs.length; j++) newArgs[j] = arguments[j];

        var all = args.concat(newArgs);
        return f.apply(null, all);
      };
    };

    var not = function (f) {
      return function () {
        return !f.apply(null, arguments);
      };
    };

    var die = function (msg) {
      return function () {
        throw new Error(msg);
      };
    };

    var apply = function (f) {
      return f();
    };

    var call = function(f) {
      f();
    };

    var never = constant(false);
    var always = constant(true);
    

    return {
      noop: noop,
      compose: compose,
      constant: constant,
      identity: identity,
      tripleEquals: tripleEquals,
      curry: curry,
      not: not,
      die: die,
      apply: apply,
      call: call,
      never: never,
      always: always
    };
  }
);

defineGlobal("global!Object", Object);
define(
  'ephox.katamari.api.Option',

  [
    'ephox.katamari.api.Fun',
    'global!Object'
  ],

  function (Fun, Object) {

    var never = Fun.never;
    var always = Fun.always;

    /**
      Option objects support the following methods:

      fold :: this Option a -> ((() -> b, a -> b)) -> Option b

      is :: this Option a -> a -> Boolean

      isSome :: this Option a -> () -> Boolean

      isNone :: this Option a -> () -> Boolean

      getOr :: this Option a -> a -> a

      getOrThunk :: this Option a -> (() -> a) -> a

      getOrDie :: this Option a -> String -> a

      or :: this Option a -> Option a -> Option a
        - if some: return self
        - if none: return opt

      orThunk :: this Option a -> (() -> Option a) -> Option a
        - Same as "or", but uses a thunk instead of a value

      map :: this Option a -> (a -> b) -> Option b
        - "fmap" operation on the Option Functor.
        - same as 'each'

      ap :: this Option a -> Option (a -> b) -> Option b
        - "apply" operation on the Option Apply/Applicative.
        - Equivalent to <*> in Haskell/PureScript.

      each :: this Option a -> (a -> b) -> Option b
        - same as 'map'

      bind :: this Option a -> (a -> Option b) -> Option b
        - "bind"/"flatMap" operation on the Option Bind/Monad.
        - Equivalent to >>= in Haskell/PureScript; flatMap in Scala.

      flatten :: {this Option (Option a))} -> () -> Option a
        - "flatten"/"join" operation on the Option Monad.

      exists :: this Option a -> (a -> Boolean) -> Boolean

      forall :: this Option a -> (a -> Boolean) -> Boolean

      filter :: this Option a -> (a -> Boolean) -> Option a

      equals :: this Option a -> Option a -> Boolean

      equals_ :: this Option a -> (Option a, a -> Boolean) -> Boolean

      toArray :: this Option a -> () -> [a]

    */

    var none = function () { return NONE; };

    var NONE = (function () {
      var eq = function (o) {
        return o.isNone();
      };

      // inlined from peanut, maybe a micro-optimisation?
      var call = function (thunk) { return thunk(); };
      var id = function (n) { return n; };
      var noop = function () { };

      var me = {
        fold: function (n, s) { return n(); },
        is: never,
        isSome: never,
        isNone: always,
        getOr: id,
        getOrThunk: call,
        getOrDie: function (msg) {
          throw new Error(msg || 'error: getOrDie called on none.');
        },
        or: id,
        orThunk: call,
        map: none,
        ap: none,
        each: noop,
        bind: none,
        flatten: none,
        exists: never,
        forall: always,
        filter: none,
        equals: eq,
        equals_: eq,
        toArray: function () { return []; },
        toString: Fun.constant("none()")
      };
      if (Object.freeze) Object.freeze(me);
      return me;
    })();


    /** some :: a -> Option a */
    var some = function (a) {

      // inlined from peanut, maybe a micro-optimisation?
      var constant_a = function () { return a; };

      var self = function () {
        // can't Fun.constant this one
        return me;
      };

      var map = function (f) {
        return some(f(a));
      };

      var bind = function (f) {
        return f(a);
      };

      var me = {
        fold: function (n, s) { return s(a); },
        is: function (v) { return a === v; },
        isSome: always,
        isNone: never,
        getOr: constant_a,
        getOrThunk: constant_a,
        getOrDie: constant_a,
        or: self,
        orThunk: self,
        map: map,
        ap: function (optfab) {
          return optfab.fold(none, function(fab) {
            return some(fab(a));
          });
        },
        each: function (f) {
          f(a);
        },
        bind: bind,
        flatten: constant_a,
        exists: bind,
        forall: bind,
        filter: function (f) {
          return f(a) ? me : NONE;
        },
        equals: function (o) {
          return o.is(a);
        },
        equals_: function (o, elementEq) {
          return o.fold(
            never,
            function (b) { return elementEq(a, b); }
          );
        },
        toArray: function () {
          return [a];
        },
        toString: function () {
          return 'some(' + a + ')';
        }
      };
      return me;
    };

    /** from :: undefined|null|a -> Option a */
    var from = function (value) {
      return value === null || value === undefined ? NONE : some(value);
    };

    return {
      some: some,
      none: none,
      from: from
    };
  }
);

defineGlobal("global!String", String);
define(
  'ephox.katamari.api.Arr',

  [
    'ephox.katamari.api.Option',
    'global!Array',
    'global!Error',
    'global!String'
  ],

  function (Option, Array, Error, String) {
    // Use the native Array.indexOf if it is available (IE9+) otherwise fall back to manual iteration
    // https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
    var rawIndexOf = (function () {
      var pIndexOf = Array.prototype.indexOf;

      var fastIndex = function (xs, x) { return  pIndexOf.call(xs, x); };

      var slowIndex = function(xs, x) { return slowIndexOf(xs, x); };

      return pIndexOf === undefined ? slowIndex : fastIndex;
    })();

    var indexOf = function (xs, x) {
      // The rawIndexOf method does not wrap up in an option. This is for performance reasons.
      var r = rawIndexOf(xs, x);
      return r === -1 ? Option.none() : Option.some(r);
    };

    var contains = function (xs, x) {
      return rawIndexOf(xs, x) > -1;
    };

    // Using findIndex is likely less optimal in Chrome (dynamic return type instead of bool)
    // but if we need that micro-optimisation we can inline it later.
    var exists = function (xs, pred) {
      return findIndex(xs, pred).isSome();
    };

    var range = function (num, f) {
      var r = [];
      for (var i = 0; i < num; i++) {
        r.push(f(i));
      }
      return r;
    };

    // It's a total micro optimisation, but these do make some difference.
    // Particularly for browsers other than Chrome.
    // - length caching
    // http://jsperf.com/browser-diet-jquery-each-vs-for-loop/69
    // - not using push
    // http://jsperf.com/array-direct-assignment-vs-push/2

    var chunk = function (array, size) {
      var r = [];
      for (var i = 0; i < array.length; i += size) {
        var s = array.slice(i, i + size);
        r.push(s);
      }
      return r;
    };

    var map = function(xs, f) {
      // pre-allocating array size when it's guaranteed to be known
      // http://jsperf.com/push-allocated-vs-dynamic/22
      var len = xs.length;
      var r = new Array(len);
      for (var i = 0; i < len; i++) {
        var x = xs[i];
        r[i] = f(x, i, xs);
      }
      return r;
    };

    // Unwound implementing other functions in terms of each.
    // The code size is roughly the same, and it should allow for better optimisation.
    var each = function(xs, f) {
      for (var i = 0, len = xs.length; i < len; i++) {
        var x = xs[i];
        f(x, i, xs);
      }
    };

    var eachr = function (xs, f) {
      for (var i = xs.length - 1; i >= 0; i--) {
        var x = xs[i];
        f(x, i, xs);
      }
    };

    var partition = function(xs, pred) {
      var pass = [];
      var fail = [];
      for (var i = 0, len = xs.length; i < len; i++) {
        var x = xs[i];
        var arr = pred(x, i, xs) ? pass : fail;
        arr.push(x);
      }
      return { pass: pass, fail: fail };
    };

    var filter = function(xs, pred) {
      var r = [];
      for (var i = 0, len = xs.length; i < len; i++) {
        var x = xs[i];
        if (pred(x, i, xs)) {
          r.push(x);
        }
      }
      return r;
    };

    /*
     * Groups an array into contiguous arrays of like elements. Whether an element is like or not depends on f.
     *
     * f is a function that derives a value from an element - e.g. true or false, or a string.
     * Elements are like if this function generates the same value for them (according to ===).
     *
     *
     * Order of the elements is preserved. Arr.flatten() on the result will return the original list, as with Haskell groupBy function.
     *  For a good explanation, see the group function (which is a special case of groupBy)
     *  http://hackage.haskell.org/package/base-4.7.0.0/docs/Data-List.html#v:group
     */
    var groupBy = function (xs, f) {
      if (xs.length === 0) {
        return [];
      } else {
        var wasType = f(xs[0]); // initial case for matching
        var r = [];
        var group = [];

        for (var i = 0, len = xs.length; i < len; i++) {
          var x = xs[i];
          var type = f(x);
          if (type !== wasType) {
            r.push(group);
            group = [];
          }
          wasType = type;
          group.push(x);
        }
        if (group.length !== 0) {
          r.push(group);
        }
        return r;
      }
    };

    var foldr = function (xs, f, acc) {
      eachr(xs, function (x) {
        acc = f(acc, x);
      });
      return acc;
    };

    var foldl = function (xs, f, acc) {
      each(xs, function (x) {
        acc = f(acc, x);
      });
      return acc;
    };

    var find = function (xs, pred) {
      for (var i = 0, len = xs.length; i < len; i++) {
        var x = xs[i];
        if (pred(x, i, xs)) {
          return Option.some(x);
        }
      }
      return Option.none();
    };

    var findIndex = function (xs, pred) {
      for (var i = 0, len = xs.length; i < len; i++) {
        var x = xs[i];
        if (pred(x, i, xs)) {
          return Option.some(i);
        }
      }

      return Option.none();
    };

    var slowIndexOf = function (xs, x) {
      for (var i = 0, len = xs.length; i < len; ++i) {
        if (xs[i] === x) {
          return i;
        }
      }

      return -1;
    };

    var push = Array.prototype.push;
    var flatten = function (xs) {
      // Note, this is possible because push supports multiple arguments:
      // http://jsperf.com/concat-push/6
      // Note that in the past, concat() would silently work (very slowly) for array-like objects.
      // With this change it will throw an error.
      var r = [];
      for (var i = 0, len = xs.length; i < len; ++i) {
        // Ensure that each value is an array itself
        if (! Array.prototype.isPrototypeOf(xs[i])) throw new Error('Arr.flatten item ' + i + ' was not an array, input: ' + xs);
        push.apply(r, xs[i]);
      }
      return r;
    };

    var bind = function (xs, f) {
      var output = map(xs, f);
      return flatten(output);
    };

    var forall = function (xs, pred) {
      for (var i = 0, len = xs.length; i < len; ++i) {
        var x = xs[i];
        if (pred(x, i, xs) !== true) {
          return false;
        }
      }
      return true;
    };

    var equal = function (a1, a2) {
      return a1.length === a2.length && forall(a1, function (x, i) {
        return x === a2[i];
      });
    };

    var slice = Array.prototype.slice;
    var reverse = function (xs) {
      var r = slice.call(xs, 0);
      r.reverse();
      return r;
    };

    var difference = function (a1, a2) {
      return filter(a1, function (x) {
        return !contains(a2, x);
      });
    };

    var mapToObject = function(xs, f) {
      var r = {};
      for (var i = 0, len = xs.length; i < len; i++) {
        var x = xs[i];
        r[String(x)] = f(x, i);
      }
      return r;
    };

    var pure = function(x) {
      return [x];
    };

    var sort = function (xs, comparator) {
      var copy = slice.call(xs, 0);
      copy.sort(comparator);
      return copy;
    };

    return {
      map: map,
      each: each,
      eachr: eachr,
      partition: partition,
      filter: filter,
      groupBy: groupBy,
      indexOf: indexOf,
      foldr: foldr,
      foldl: foldl,
      find: find,
      findIndex: findIndex,
      flatten: flatten,
      bind: bind,
      forall: forall,
      exists: exists,
      contains: contains,
      equal: equal,
      reverse: reverse,
      chunk: chunk,
      difference: difference,
      mapToObject: mapToObject,
      pure: pure,
      sort: sort,
      range: range
    };
  }
);
defineGlobal("global!setTimeout", setTimeout);
define(
  'ephox.katamari.api.LazyValue',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Option',
    'global!setTimeout'
  ],

  function (Arr, Option, setTimeout) {
    var nu = function (baseFn) {
      var data = Option.none();
      var callbacks = [];

      /** map :: this LazyValue a -> (a -> b) -> LazyValue b */
      var map = function (f) {
        return nu(function (nCallback) {
          get(function (data) {
            nCallback(f(data));
          });
        });
      };

      var get = function (nCallback) {
        if (isReady()) call(nCallback);
        else callbacks.push(nCallback);
      };

      var set = function (x) {
        data = Option.some(x);
        run(callbacks);
        callbacks = [];
      };

      var isReady = function () {
        return data.isSome();
      };

      var run = function (cbs) {
        Arr.each(cbs, call);
      };

      var call = function(cb) {
        data.each(function(x) {
          setTimeout(function() {
            cb(x);
          }, 0);
        });
      };

      // Lazy values cache the value and kick off immediately
      baseFn(set);

      return {
        get: get,
        map: map,
        isReady: isReady
      };
    };

    var pure = function (a) {
      return nu(function (callback) {
        callback(a);
      });
    };

    return {
      nu: nu,
      pure: pure
    };
  }
);
define(
  'ephox.katamari.async.Bounce',

  [
    'global!Array',
    'global!setTimeout'
  ],

  function (Array, setTimeout) {

    var bounce = function(f) {
      return function() {
        var args = Array.prototype.slice.call(arguments);
        var me = this;
        setTimeout(function() {
          f.apply(me, args);
        }, 0);
      };
    };

    return {
      bounce: bounce
    };
  }
);

define(
  'ephox.katamari.api.Future',

  [
    'ephox.katamari.api.LazyValue',
    'ephox.katamari.async.Bounce'
  ],

  /** A future value that is evaluated on demand. The base function is re-evaluated each time 'get' is called. */
  function (LazyValue, Bounce) {
    var nu = function (baseFn) {
      var get = function(callback) {
        baseFn(Bounce.bounce(callback));
      };

      /** map :: this Future a -> (a -> b) -> Future b */
      var map = function (fab) {
        return nu(function (callback) {
          get(function (a) {
            var value = fab(a);
            callback(value);
          });
        });
      };

      /** bind :: this Future a -> (a -> Future b) -> Future b */
      var bind = function (aFutureB) {
        return nu(function (callback) {
          get(function (a) {
            aFutureB(a).get(callback);
          });
        });
      };

      /** anonBind :: this Future a -> Future b -> Future b
       *  Returns a future, which evaluates the first future, ignores the result, then evaluates the second.
       */
      var anonBind = function (futureB) {
        return nu(function (callback) {
          get(function (a) {
            futureB.get(callback);
          });
        });
      };

      var toLazy = function () {
        return LazyValue.nu(get);
      };

      return {
        map: map,
        bind: bind,
        anonBind: anonBind,
        toLazy: toLazy,
        get: get
      };

    };

    /** a -> Future a */
    var pure = function (a) {
      return nu(function (callback) {
        callback(a);
      });
    };

    return {
      nu: nu,
      pure: pure
    };
  }
);

define(
  'ephox.katamari.async.AsyncValues',

  [
    'ephox.katamari.api.Arr'
  ],

  function (Arr) {
    /* 
     * NOTE: an `asyncValue` must have a `get` function which gets given a callback and calls 
     * that callback with a value once it is ready
     *
     * e.g 
     * {
     *   get: function (callback) { callback(10); }
     * }
     */
    var par = function (asyncValues, nu) {
      return nu(function(callback) {
        var r = [];
        var count = 0;

        var cb = function(i) {
          return function(value) {
            r[i] = value;
            count++;
            if (count >= asyncValues.length) {
              callback(r);
            }
          };
        };

        if (asyncValues.length === 0) {
          callback([]);
        } else {
          Arr.each(asyncValues, function(asyncValue, i) {
            asyncValue.get(cb(i));
          });
        }
      });
    };

    return {
      par: par
    };
  }
);
define(
  'ephox.katamari.api.Futures',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Future',
    'ephox.katamari.async.AsyncValues'
  ],

  function (Arr, Future, AsyncValues) {
    /** par :: [Future a] -> Future [a] */
    var par = function(futures) {
      return AsyncValues.par(futures, Future.nu);
    };

    /** mapM :: [a] -> (a -> Future b) -> Future [b] */
    var mapM = function(array, fn) {
      var futures = Arr.map(array, fn);
      return par(futures);
    };

    /** Kleisli composition of two functions: a -> Future b.
     *  Note the order of arguments: g is invoked first, then the result passed to f.
     *  This is in line with f . g = \x -> f (g a)
     *
     *  compose :: ((b -> Future c), (a -> Future b)) -> a -> Future c
     */
    var compose = function (f, g) {
      return function (a) {
        return g(a).bind(f);
      };
    };

    return {
      par: par,
      mapM: mapM,
      compose: compose
    };
  }
);
define(
  'ephox.katamari.api.Result',

  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option'
  ],

  function (Fun, Option) {
    /* The type signatures for Result 
     * is :: this Result a -> a -> Bool
     * or :: this Result a -> Result a -> Result a
     * orThunk :: this Result a -> (_ -> Result a) -> Result a
     * map :: this Result a -> (a -> b) -> Result b
     * each :: this Result a -> (a -> _) -> _ 
     * bind :: this Result a -> (a -> Result b) -> Result b
     * fold :: this Result a -> (_ -> b, a -> b) -> b
     * exists :: this Result a -> (a -> Bool) -> Bool
     * forall :: this Result a -> (a -> Bool) -> Bool
     * toOption :: this Result a -> Option a
     * isValue :: this Result a -> Bool
     * isError :: this Result a -> Bool
     * getOr :: this Result a -> a -> a
     * getOrThunk :: this Result a -> (_ -> a) -> a
     * getOrDie :: this Result a -> a (or throws error)
    */

    var value = function (o) {
      var is = function (v) {
        return o === v;      
      };

      var or = function (opt) {
        return value(o);
      };

      var orThunk = function (f) {
        return value(o);
      };

      var map = function (f) {
        return value(f(o));
      };

      var each = function (f) {
        f(o);
      };

      var bind = function (f) {
        return f(o);
      };

      var fold = function (_, onValue) {
        return onValue(o);
      };

      var exists = function (f) {
        return f(o);
      };

      var forall = function (f) {
        return f(o);
      };

      var toOption = function () {
        return Option.some(o);
      };
     
      return {
        is: is,
        isValue: Fun.constant(true),
        isError: Fun.constant(false),
        getOr: Fun.constant(o),
        getOrThunk: Fun.constant(o),
        getOrDie: Fun.constant(o),
        or: or,
        orThunk: orThunk,
        fold: fold,
        map: map,
        each: each,
        bind: bind,
        exists: exists,
        forall: forall,
        toOption: toOption
      };
    };

    var error = function (message) {
      var getOrThunk = function (f) {
        return f();
      };

      var getOrDie = function () {
        return Fun.die(message)();
      };

      var or = function (opt) {
        return opt;
      };

      var orThunk = function (f) {
        return f();
      };

      var map = function (f) {
        return error(message);
      };

      var bind = function (f) {
        return error(message);
      };

      var fold = function (onError, _) {
        return onError(message);
      };

      return {
        is: Fun.constant(false),
        isValue: Fun.constant(false),
        isError: Fun.constant(true),
        getOr: Fun.identity,
        getOrThunk: getOrThunk,
        getOrDie: getOrDie,
        or: or,
        orThunk: orThunk,
        fold: fold,
        map: map,
        each: Fun.noop,
        bind: bind,
        exists: Fun.constant(false),
        forall: Fun.constant(true),
        toOption: Option.none
      };
    };

    return {
      value: value,
      error: error
    };
  }
);

/**
 * StyleSheetLoader.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles loading of external stylesheets and fires events when these are loaded.
 *
 * @class tinymce.dom.StyleSheetLoader
 * @private
 */
define(
  'tinymce.core.dom.StyleSheetLoader',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Future',
    'ephox.katamari.api.Futures',
    'ephox.katamari.api.Result',
    'tinymce.core.util.Delay',
    'tinymce.core.util.Tools'
  ],
  function (Arr, Fun, Future, Futures, Result, Delay, Tools) {
    "use strict";

    return function (document, settings) {
      var idCount = 0, loadedStates = {}, maxLoadTime;

      settings = settings || {};
      maxLoadTime = settings.maxLoadTime || 5000;

      function appendToHead(node) {
        document.getElementsByTagName('head')[0].appendChild(node);
      }

      /**
       * Loads the specified css style sheet file and call the loadedCallback once it's finished loading.
       *
       * @method load
       * @param {String} url Url to be loaded.
       * @param {Function} loadedCallback Callback to be executed when loaded.
       * @param {Function} errorCallback Callback to be executed when failed loading.
       */
      function load(url, loadedCallback, errorCallback) {
        var link, style, startTime, state;

        function passed() {
          var callbacks = state.passed, i = callbacks.length;

          while (i--) {
            callbacks[i]();
          }

          state.status = 2;
          state.passed = [];
          state.failed = [];
        }

        function failed() {
          var callbacks = state.failed, i = callbacks.length;

          while (i--) {
            callbacks[i]();
          }

          state.status = 3;
          state.passed = [];
          state.failed = [];
        }

        // Sniffs for older WebKit versions that have the link.onload but a broken one
        function isOldWebKit() {
          var webKitChunks = navigator.userAgent.match(/WebKit\/(\d*)/);
          return !!(webKitChunks && webKitChunks[1] < 536);
        }

        // Calls the waitCallback until the test returns true or the timeout occurs
        function wait(testCallback, waitCallback) {
          if (!testCallback()) {
            // Wait for timeout
            if ((new Date().getTime()) - startTime < maxLoadTime) {
              Delay.setTimeout(waitCallback);
            } else {
              failed();
            }
          }
        }

        // Workaround for WebKit that doesn't properly support the onload event for link elements
        // Or WebKit that fires the onload event before the StyleSheet is added to the document
        function waitForWebKitLinkLoaded() {
          wait(function () {
            var styleSheets = document.styleSheets, styleSheet, i = styleSheets.length, owner;

            while (i--) {
              styleSheet = styleSheets[i];
              owner = styleSheet.ownerNode ? styleSheet.ownerNode : styleSheet.owningElement;
              if (owner && owner.id === link.id) {
                passed();
                return true;
              }
            }
          }, waitForWebKitLinkLoaded);
        }

        // Workaround for older Geckos that doesn't have any onload event for StyleSheets
        function waitForGeckoLinkLoaded() {
          wait(function () {
            try {
              // Accessing the cssRules will throw an exception until the CSS file is loaded
              var cssRules = style.sheet.cssRules;
              passed();
              return !!cssRules;
            } catch (ex) {
              // Ignore
            }
          }, waitForGeckoLinkLoaded);
        }

        url = Tools._addCacheSuffix(url);

        if (!loadedStates[url]) {
          state = {
            passed: [],
            failed: []
          };

          loadedStates[url] = state;
        } else {
          state = loadedStates[url];
        }

        if (loadedCallback) {
          state.passed.push(loadedCallback);
        }

        if (errorCallback) {
          state.failed.push(errorCallback);
        }

        // Is loading wait for it to pass
        if (state.status == 1) {
          return;
        }

        // Has finished loading and was success
        if (state.status == 2) {
          passed();
          return;
        }

        // Has finished loading and was a failure
        if (state.status == 3) {
          failed();
          return;
        }

        // Start loading
        state.status = 1;
        link = document.createElement('link');
        link.rel = 'stylesheet';
        link.type = 'text/css';
        link.id = 'u' + (idCount++);
        link.async = false;
        link.defer = false;
        startTime = new Date().getTime();

        // Feature detect onload on link element and sniff older webkits since it has an broken onload event
        if ("onload" in link && !isOldWebKit()) {
          link.onload = waitForWebKitLinkLoaded;
          link.onerror = failed;
        } else {
          // Sniff for old Firefox that doesn't support the onload event on link elements
          // TODO: Remove this in the future when everyone uses modern browsers
          if (navigator.userAgent.indexOf("Firefox") > 0) {
            style = document.createElement('style');
            style.textContent = '@import "' + url + '"';
            waitForGeckoLinkLoaded();
            appendToHead(style);
            return;
          }

          // Use the id owner on older webkits
          waitForWebKitLinkLoaded();
        }

        appendToHead(link);
        link.href = url;
      }

      var loadF = function (url) {
        return Future.nu(function (resolve) {
          load(
            url,
            Fun.compose(resolve, Fun.constant(Result.value(url))),
            Fun.compose(resolve, Fun.constant(Result.error(url)))
          );
        });
      };

      var unbox = function (result) {
        return result.fold(Fun.identity, Fun.identity);
      };

      var loadAll = function (urls, success, failure) {
        Futures.par(Arr.map(urls, loadF)).get(function (result) {
          var parts = Arr.partition(result, function (r) {
            return r.isValue();
          });

          if (parts.fail.length > 0) {
            failure(parts.fail.map(unbox));
          } else {
            success(parts.pass.map(unbox));
          }
        });
      };

      return {
        load: load,
        loadAll: loadAll
      };
    };
  }
);

/**
 * Schema.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Schema validator class.
 *
 * @class tinymce.html.Schema
 * @example
 *  if (tinymce.activeEditor.schema.isValidChild('p', 'span'))
 *    alert('span is valid child of p.');
 *
 *  if (tinymce.activeEditor.schema.getElementRule('p'))
 *    alert('P is a valid element.');
 *
 * @class tinymce.html.Schema
 * @version 3.4
 */
define(
  'tinymce.core.html.Schema',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    var mapCache = {}, dummyObj = {};
    var makeMap = Tools.makeMap, each = Tools.each, extend = Tools.extend, explode = Tools.explode, inArray = Tools.inArray;

    function split(items, delim) {
      items = Tools.trim(items);
      return items ? items.split(delim || ' ') : [];
    }

    /**
     * Builds a schema lookup table
     *
     * @private
     * @param {String} type html4, html5 or html5-strict schema type.
     * @return {Object} Schema lookup table.
     */
    function compileSchema(type) {
      var schema = {}, globalAttributes, blockContent;
      var phrasingContent, flowContent, html4BlockContent, html4PhrasingContent;

      function add(name, attributes, children) {
        var ni, attributesOrder, element;

        function arrayToMap(array, obj) {
          var map = {}, i, l;

          for (i = 0, l = array.length; i < l; i++) {
            map[array[i]] = obj || {};
          }

          return map;
        }

        children = children || [];
        attributes = attributes || "";

        if (typeof children === "string") {
          children = split(children);
        }

        name = split(name);
        ni = name.length;
        while (ni--) {
          attributesOrder = split([globalAttributes, attributes].join(' '));

          element = {
            attributes: arrayToMap(attributesOrder),
            attributesOrder: attributesOrder,
            children: arrayToMap(children, dummyObj)
          };

          schema[name[ni]] = element;
        }
      }

      function addAttrs(name, attributes) {
        var ni, schemaItem, i, l;

        name = split(name);
        ni = name.length;
        attributes = split(attributes);
        while (ni--) {
          schemaItem = schema[name[ni]];
          for (i = 0, l = attributes.length; i < l; i++) {
            schemaItem.attributes[attributes[i]] = {};
            schemaItem.attributesOrder.push(attributes[i]);
          }
        }
      }

      // Use cached schema
      if (mapCache[type]) {
        return mapCache[type];
      }

      // Attributes present on all elements
      globalAttributes = "id accesskey class dir lang style tabindex title role";

      // Event attributes can be opt-in/opt-out
      /*eventAttributes = split("onabort onblur oncancel oncanplay oncanplaythrough onchange onclick onclose oncontextmenu oncuechange " +
       "ondblclick ondrag ondragend ondragenter ondragleave ondragover ondragstart ondrop ondurationchange onemptied onended " +
       "onerror onfocus oninput oninvalid onkeydown onkeypress onkeyup onload onloadeddata onloadedmetadata onloadstart " +
       "onmousedown onmousemove onmouseout onmouseover onmouseup onmousewheel onpause onplay onplaying onprogress onratechange " +
       "onreset onscroll onseeked onseeking onseeking onselect onshow onstalled onsubmit onsuspend ontimeupdate onvolumechange " +
       "onwaiting"
       );*/

      // Block content elements
      blockContent =
        "address blockquote div dl fieldset form h1 h2 h3 h4 h5 h6 hr menu ol p pre table ul";

      // Phrasing content elements from the HTML5 spec (inline)
      phrasingContent =
        "a abbr b bdo br button cite code del dfn em embed i iframe img input ins kbd " +
        "label map noscript object q s samp script select small span strong sub sup " +
        "textarea u var #text #comment"
        ;

      // Add HTML5 items to globalAttributes, blockContent, phrasingContent
      if (type != "html4") {
        globalAttributes += " contenteditable contextmenu draggable dropzone " +
          "hidden spellcheck translate";
        blockContent += " article aside details dialog figure header footer hgroup section nav";
        phrasingContent += " audio canvas command datalist mark meter output picture " +
          "progress time wbr video ruby bdi keygen";
      }

      // Add HTML4 elements unless it's html5-strict
      if (type != "html5-strict") {
        globalAttributes += " xml:lang";

        html4PhrasingContent = "acronym applet basefont big font strike tt";
        phrasingContent = [phrasingContent, html4PhrasingContent].join(' ');

        each(split(html4PhrasingContent), function (name) {
          add(name, "", phrasingContent);
        });

        html4BlockContent = "center dir isindex noframes";
        blockContent = [blockContent, html4BlockContent].join(' ');

        // Flow content elements from the HTML5 spec (block+inline)
        flowContent = [blockContent, phrasingContent].join(' ');

        each(split(html4BlockContent), function (name) {
          add(name, "", flowContent);
        });
      }

      // Flow content elements from the HTML5 spec (block+inline)
      flowContent = flowContent || [blockContent, phrasingContent].join(" ");

      // HTML4 base schema TODO: Move HTML5 specific attributes to HTML5 specific if statement
      // Schema items <element name>, <specific attributes>, <children ..>
      add("html", "manifest", "head body");
      add("head", "", "base command link meta noscript script style title");
      add("title hr noscript br");
      add("base", "href target");
      add("link", "href rel media hreflang type sizes hreflang");
      add("meta", "name http-equiv content charset");
      add("style", "media type scoped");
      add("script", "src async defer type charset");
      add("body", "onafterprint onbeforeprint onbeforeunload onblur onerror onfocus " +
        "onhashchange onload onmessage onoffline ononline onpagehide onpageshow " +
        "onpopstate onresize onscroll onstorage onunload", flowContent);
      add("address dt dd div caption", "", flowContent);
      add("h1 h2 h3 h4 h5 h6 pre p abbr code var samp kbd sub sup i b u bdo span legend em strong small s cite dfn", "", phrasingContent);
      add("blockquote", "cite", flowContent);
      add("ol", "reversed start type", "li");
      add("ul", "", "li");
      add("li", "value", flowContent);
      add("dl", "", "dt dd");
      add("a", "href target rel media hreflang type", phrasingContent);
      add("q", "cite", phrasingContent);
      add("ins del", "cite datetime", flowContent);
      add("img", "src sizes srcset alt usemap ismap width height");
      add("iframe", "src name width height", flowContent);
      add("embed", "src type width height");
      add("object", "data type typemustmatch name usemap form width height", [flowContent, "param"].join(' '));
      add("param", "name value");
      add("map", "name", [flowContent, "area"].join(' '));
      add("area", "alt coords shape href target rel media hreflang type");
      add("table", "border", "caption colgroup thead tfoot tbody tr" + (type == "html4" ? " col" : ""));
      add("colgroup", "span", "col");
      add("col", "span");
      add("tbody thead tfoot", "", "tr");
      add("tr", "", "td th");
      add("td", "colspan rowspan headers", flowContent);
      add("th", "colspan rowspan headers scope abbr", flowContent);
      add("form", "accept-charset action autocomplete enctype method name novalidate target", flowContent);
      add("fieldset", "disabled form name", [flowContent, "legend"].join(' '));
      add("label", "form for", phrasingContent);
      add("input", "accept alt autocomplete checked dirname disabled form formaction formenctype formmethod formnovalidate " +
        "formtarget height list max maxlength min multiple name pattern readonly required size src step type value width"
      );
      add("button", "disabled form formaction formenctype formmethod formnovalidate formtarget name type value",
        type == "html4" ? flowContent : phrasingContent);
      add("select", "disabled form multiple name required size", "option optgroup");
      add("optgroup", "disabled label", "option");
      add("option", "disabled label selected value");
      add("textarea", "cols dirname disabled form maxlength name readonly required rows wrap");
      add("menu", "type label", [flowContent, "li"].join(' '));
      add("noscript", "", flowContent);

      // Extend with HTML5 elements
      if (type != "html4") {
        add("wbr");
        add("ruby", "", [phrasingContent, "rt rp"].join(' '));
        add("figcaption", "", flowContent);
        add("mark rt rp summary bdi", "", phrasingContent);
        add("canvas", "width height", flowContent);
        add("video", "src crossorigin poster preload autoplay mediagroup loop " +
          "muted controls width height buffered", [flowContent, "track source"].join(' '));
        add("audio", "src crossorigin preload autoplay mediagroup loop muted controls " +
          "buffered volume", [flowContent, "track source"].join(' '));
        add("picture", "", "img source");
        add("source", "src srcset type media sizes");
        add("track", "kind src srclang label default");
        add("datalist", "", [phrasingContent, "option"].join(' '));
        add("article section nav aside header footer", "", flowContent);
        add("hgroup", "", "h1 h2 h3 h4 h5 h6");
        add("figure", "", [flowContent, "figcaption"].join(' '));
        add("time", "datetime", phrasingContent);
        add("dialog", "open", flowContent);
        add("command", "type label icon disabled checked radiogroup command");
        add("output", "for form name", phrasingContent);
        add("progress", "value max", phrasingContent);
        add("meter", "value min max low high optimum", phrasingContent);
        add("details", "open", [flowContent, "summary"].join(' '));
        add("keygen", "autofocus challenge disabled form keytype name");
      }

      // Extend with HTML4 attributes unless it's html5-strict
      if (type != "html5-strict") {
        addAttrs("script", "language xml:space");
        addAttrs("style", "xml:space");
        addAttrs("object", "declare classid code codebase codetype archive standby align border hspace vspace");
        addAttrs("embed", "align name hspace vspace");
        addAttrs("param", "valuetype type");
        addAttrs("a", "charset name rev shape coords");
        addAttrs("br", "clear");
        addAttrs("applet", "codebase archive code object alt name width height align hspace vspace");
        addAttrs("img", "name longdesc align border hspace vspace");
        addAttrs("iframe", "longdesc frameborder marginwidth marginheight scrolling align");
        addAttrs("font basefont", "size color face");
        addAttrs("input", "usemap align");
        addAttrs("select", "onchange");
        addAttrs("textarea");
        addAttrs("h1 h2 h3 h4 h5 h6 div p legend caption", "align");
        addAttrs("ul", "type compact");
        addAttrs("li", "type");
        addAttrs("ol dl menu dir", "compact");
        addAttrs("pre", "width xml:space");
        addAttrs("hr", "align noshade size width");
        addAttrs("isindex", "prompt");
        addAttrs("table", "summary width frame rules cellspacing cellpadding align bgcolor");
        addAttrs("col", "width align char charoff valign");
        addAttrs("colgroup", "width align char charoff valign");
        addAttrs("thead", "align char charoff valign");
        addAttrs("tr", "align char charoff valign bgcolor");
        addAttrs("th", "axis align char charoff valign nowrap bgcolor width height");
        addAttrs("form", "accept");
        addAttrs("td", "abbr axis scope align char charoff valign nowrap bgcolor width height");
        addAttrs("tfoot", "align char charoff valign");
        addAttrs("tbody", "align char charoff valign");
        addAttrs("area", "nohref");
        addAttrs("body", "background bgcolor text link vlink alink");
      }

      // Extend with HTML5 attributes unless it's html4
      if (type != "html4") {
        addAttrs("input button select textarea", "autofocus");
        addAttrs("input textarea", "placeholder");
        addAttrs("a", "download");
        addAttrs("link script img", "crossorigin");
        addAttrs("iframe", "sandbox seamless allowfullscreen"); // Excluded: srcdoc
      }

      // Special: iframe, ruby, video, audio, label

      // Delete children of the same name from it's parent
      // For example: form can't have a child of the name form
      each(split('a form meter progress dfn'), function (name) {
        if (schema[name]) {
          delete schema[name].children[name];
        }
      });

      // Delete header, footer, sectioning and heading content descendants
      /*each('dt th address', function(name) {
       delete schema[name].children[name];
       });*/

      // Caption can't have tables
      delete schema.caption.children.table;

      // Delete scripts by default due to possible XSS
      delete schema.script;

      // TODO: LI:s can only have value if parent is OL

      // TODO: Handle transparent elements
      // a ins del canvas map

      mapCache[type] = schema;

      return schema;
    }

    function compileElementMap(value, mode) {
      var styles;

      if (value) {
        styles = {};

        if (typeof value == 'string') {
          value = {
            '*': value
          };
        }

        // Convert styles into a rule list
        each(value, function (value, key) {
          styles[key] = styles[key.toUpperCase()] = mode == 'map' ? makeMap(value, /[, ]/) : explode(value, /[, ]/);
        });
      }

      return styles;
    }

    /**
     * Constructs a new Schema instance.
     *
     * @constructor
     * @method Schema
     * @param {Object} settings Name/value settings object.
     */
    return function (settings) {
      var self = this, elements = {}, children = {}, patternElements = [], validStyles, invalidStyles, schemaItems;
      var whiteSpaceElementsMap, selfClosingElementsMap, shortEndedElementsMap, boolAttrMap, validClasses;
      var blockElementsMap, nonEmptyElementsMap, moveCaretBeforeOnEnterElementsMap, textBlockElementsMap, textInlineElementsMap;
      var customElementsMap = {}, specialElements = {};

      // Creates an lookup table map object for the specified option or the default value
      function createLookupTable(option, defaultValue, extendWith) {
        var value = settings[option];

        if (!value) {
          // Get cached default map or make it if needed
          value = mapCache[option];

          if (!value) {
            value = makeMap(defaultValue, ' ', makeMap(defaultValue.toUpperCase(), ' '));
            value = extend(value, extendWith);

            mapCache[option] = value;
          }
        } else {
          // Create custom map
          value = makeMap(value, /[, ]/, makeMap(value.toUpperCase(), /[, ]/));
        }

        return value;
      }

      settings = settings || {};
      schemaItems = compileSchema(settings.schema);

      // Allow all elements and attributes if verify_html is set to false
      if (settings.verify_html === false) {
        settings.valid_elements = '*[*]';
      }

      validStyles = compileElementMap(settings.valid_styles);
      invalidStyles = compileElementMap(settings.invalid_styles, 'map');
      validClasses = compileElementMap(settings.valid_classes, 'map');

      // Setup map objects
      whiteSpaceElementsMap = createLookupTable(
        'whitespace_elements',
        'pre script noscript style textarea video audio iframe object code'
      );
      selfClosingElementsMap = createLookupTable('self_closing_elements', 'colgroup dd dt li option p td tfoot th thead tr');
      shortEndedElementsMap = createLookupTable('short_ended_elements', 'area base basefont br col frame hr img input isindex link ' +
        'meta param embed source wbr track');
      boolAttrMap = createLookupTable('boolean_attributes', 'checked compact declare defer disabled ismap multiple nohref noresize ' +
        'noshade nowrap readonly selected autoplay loop controls');
      nonEmptyElementsMap = createLookupTable('non_empty_elements', 'td th iframe video audio object ' +
        'script pre code', shortEndedElementsMap);
      moveCaretBeforeOnEnterElementsMap = createLookupTable('move_caret_before_on_enter_elements', 'table', nonEmptyElementsMap);
      textBlockElementsMap = createLookupTable('text_block_elements', 'h1 h2 h3 h4 h5 h6 p div address pre form ' +
        'blockquote center dir fieldset header footer article section hgroup aside nav figure');
      blockElementsMap = createLookupTable('block_elements', 'hr table tbody thead tfoot ' +
        'th tr td li ol ul caption dl dt dd noscript menu isindex option ' +
        'datalist select optgroup figcaption', textBlockElementsMap);
      textInlineElementsMap = createLookupTable('text_inline_elements', 'span strong b em i font strike u var cite ' +
        'dfn code mark q sup sub samp');

      each((settings.special || 'script noscript style textarea').split(' '), function (name) {
        specialElements[name] = new RegExp('<\/' + name + '[^>]*>', 'gi');
      });

      // Converts a wildcard expression string to a regexp for example *a will become /.*a/.
      function patternToRegExp(str) {
        return new RegExp('^' + str.replace(/([?+*])/g, '.$1') + '$');
      }

      // Parses the specified valid_elements string and adds to the current rules
      // This function is a bit hard to read since it's heavily optimized for speed
      function addValidElements(validElements) {
        var ei, el, ai, al, matches, element, attr, attrData, elementName, attrName, attrType, attributes, attributesOrder,
          prefix, outputName, globalAttributes, globalAttributesOrder, key, value,
          elementRuleRegExp = /^([#+\-])?([^\[!\/]+)(?:\/([^\[!]+))?(?:(!?)\[([^\]]+)\])?$/,
          attrRuleRegExp = /^([!\-])?(\w+::\w+|[^=:<]+)?(?:([=:<])(.*))?$/,
          hasPatternsRegExp = /[*?+]/;

        if (validElements) {
          // Split valid elements into an array with rules
          validElements = split(validElements, ',');

          if (elements['@']) {
            globalAttributes = elements['@'].attributes;
            globalAttributesOrder = elements['@'].attributesOrder;
          }

          // Loop all rules
          for (ei = 0, el = validElements.length; ei < el; ei++) {
            // Parse element rule
            matches = elementRuleRegExp.exec(validElements[ei]);
            if (matches) {
              // Setup local names for matches
              prefix = matches[1];
              elementName = matches[2];
              outputName = matches[3];
              attrData = matches[5];

              // Create new attributes and attributesOrder
              attributes = {};
              attributesOrder = [];

              // Create the new element
              element = {
                attributes: attributes,
                attributesOrder: attributesOrder
              };

              // Padd empty elements prefix
              if (prefix === '#') {
                element.paddEmpty = true;
              }

              // Remove empty elements prefix
              if (prefix === '-') {
                element.removeEmpty = true;
              }

              if (matches[4] === '!') {
                element.removeEmptyAttrs = true;
              }

              // Copy attributes from global rule into current rule
              if (globalAttributes) {
                for (key in globalAttributes) {
                  attributes[key] = globalAttributes[key];
                }

                attributesOrder.push.apply(attributesOrder, globalAttributesOrder);
              }

              // Attributes defined
              if (attrData) {
                attrData = split(attrData, '|');
                for (ai = 0, al = attrData.length; ai < al; ai++) {
                  matches = attrRuleRegExp.exec(attrData[ai]);
                  if (matches) {
                    attr = {};
                    attrType = matches[1];
                    attrName = matches[2].replace(/::/g, ':');
                    prefix = matches[3];
                    value = matches[4];

                    // Required
                    if (attrType === '!') {
                      element.attributesRequired = element.attributesRequired || [];
                      element.attributesRequired.push(attrName);
                      attr.required = true;
                    }

                    // Denied from global
                    if (attrType === '-') {
                      delete attributes[attrName];
                      attributesOrder.splice(inArray(attributesOrder, attrName), 1);
                      continue;
                    }

                    // Default value
                    if (prefix) {
                      // Default value
                      if (prefix === '=') {
                        element.attributesDefault = element.attributesDefault || [];
                        element.attributesDefault.push({ name: attrName, value: value });
                        attr.defaultValue = value;
                      }

                      // Forced value
                      if (prefix === ':') {
                        element.attributesForced = element.attributesForced || [];
                        element.attributesForced.push({ name: attrName, value: value });
                        attr.forcedValue = value;
                      }

                      // Required values
                      if (prefix === '<') {
                        attr.validValues = makeMap(value, '?');
                      }
                    }

                    // Check for attribute patterns
                    if (hasPatternsRegExp.test(attrName)) {
                      element.attributePatterns = element.attributePatterns || [];
                      attr.pattern = patternToRegExp(attrName);
                      element.attributePatterns.push(attr);
                    } else {
                      // Add attribute to order list if it doesn't already exist
                      if (!attributes[attrName]) {
                        attributesOrder.push(attrName);
                      }

                      attributes[attrName] = attr;
                    }
                  }
                }
              }

              // Global rule, store away these for later usage
              if (!globalAttributes && elementName == '@') {
                globalAttributes = attributes;
                globalAttributesOrder = attributesOrder;
              }

              // Handle substitute elements such as b/strong
              if (outputName) {
                element.outputName = elementName;
                elements[outputName] = element;
              }

              // Add pattern or exact element
              if (hasPatternsRegExp.test(elementName)) {
                element.pattern = patternToRegExp(elementName);
                patternElements.push(element);
              } else {
                elements[elementName] = element;
              }
            }
          }
        }
      }

      function setValidElements(validElements) {
        elements = {};
        patternElements = [];

        addValidElements(validElements);

        each(schemaItems, function (element, name) {
          children[name] = element.children;
        });
      }

      // Adds custom non HTML elements to the schema
      function addCustomElements(customElements) {
        var customElementRegExp = /^(~)?(.+)$/;

        if (customElements) {
          // Flush cached items since we are altering the default maps
          mapCache.text_block_elements = mapCache.block_elements = null;

          each(split(customElements, ','), function (rule) {
            var matches = customElementRegExp.exec(rule),
              inline = matches[1] === '~',
              cloneName = inline ? 'span' : 'div',
              name = matches[2];

            children[name] = children[cloneName];
            customElementsMap[name] = cloneName;

            // If it's not marked as inline then add it to valid block elements
            if (!inline) {
              blockElementsMap[name.toUpperCase()] = {};
              blockElementsMap[name] = {};
            }

            // Add elements clone if needed
            if (!elements[name]) {
              var customRule = elements[cloneName];

              customRule = extend({}, customRule);
              delete customRule.removeEmptyAttrs;
              delete customRule.removeEmpty;

              elements[name] = customRule;
            }

            // Add custom elements at span/div positions
            each(children, function (element, elmName) {
              if (element[cloneName]) {
                children[elmName] = element = extend({}, children[elmName]);
                element[name] = element[cloneName];
              }
            });
          });
        }
      }

      // Adds valid children to the schema object
      function addValidChildren(validChildren) {
        var childRuleRegExp = /^([+\-]?)(\w+)\[([^\]]+)\]$/;

        // Invalidate the schema cache if the schema is mutated
        mapCache[settings.schema] = null;

        if (validChildren) {
          each(split(validChildren, ','), function (rule) {
            var matches = childRuleRegExp.exec(rule), parent, prefix;

            if (matches) {
              prefix = matches[1];

              // Add/remove items from default
              if (prefix) {
                parent = children[matches[2]];
              } else {
                parent = children[matches[2]] = { '#comment': {} };
              }

              parent = children[matches[2]];

              each(split(matches[3], '|'), function (child) {
                if (prefix === '-') {
                  delete parent[child];
                } else {
                  parent[child] = {};
                }
              });
            }
          });
        }
      }

      function getElementRule(name) {
        var element = elements[name], i;

        // Exact match found
        if (element) {
          return element;
        }

        // No exact match then try the patterns
        i = patternElements.length;
        while (i--) {
          element = patternElements[i];

          if (element.pattern.test(name)) {
            return element;
          }
        }
      }

      if (!settings.valid_elements) {
        // No valid elements defined then clone the elements from the schema spec
        each(schemaItems, function (element, name) {
          elements[name] = {
            attributes: element.attributes,
            attributesOrder: element.attributesOrder
          };

          children[name] = element.children;
        });

        // Switch these on HTML4
        if (settings.schema != "html5") {
          each(split('strong/b em/i'), function (item) {
            item = split(item, '/');
            elements[item[1]].outputName = item[0];
          });
        }

        // Add default alt attribute for images, removed since alt="" is treated as presentational.
        // elements.img.attributesDefault = [{name: 'alt', value: ''}];

        // Remove these if they are empty by default
        each(split('ol ul sub sup blockquote span font a table tbody tr strong em b i'), function (name) {
          if (elements[name]) {
            elements[name].removeEmpty = true;
          }
        });

        // Padd these by default
        each(split('p h1 h2 h3 h4 h5 h6 th td pre div address caption'), function (name) {
          elements[name].paddEmpty = true;
        });

        // Remove these if they have no attributes
        each(split('span'), function (name) {
          elements[name].removeEmptyAttrs = true;
        });

        // Remove these by default
        // TODO: Reenable in 4.1
        /*each(split('script style'), function(name) {
         delete elements[name];
         });*/
      } else {
        setValidElements(settings.valid_elements);
      }

      addCustomElements(settings.custom_elements);
      addValidChildren(settings.valid_children);
      addValidElements(settings.extended_valid_elements);

      // Todo: Remove this when we fix list handling to be valid
      addValidChildren('+ol[ul|ol],+ul[ul|ol]');


      // Some elements are not valid by themselves - require parents
      each({
        dd: 'dl',
        dt: 'dl',
        li: 'ul ol',
        td: 'tr',
        th: 'tr',
        tr: 'tbody thead tfoot',
        tbody: 'table',
        thead: 'table',
        tfoot: 'table',
        legend: 'fieldset',
        area: 'map',
        param: 'video audio object'
      }, function (parents, item) {
        if (elements[item]) {
          elements[item].parentsRequired = split(parents);
        }
      });


      // Delete invalid elements
      if (settings.invalid_elements) {
        each(explode(settings.invalid_elements), function (item) {
          if (elements[item]) {
            delete elements[item];
          }
        });
      }

      // If the user didn't allow span only allow internal spans
      if (!getElementRule('span')) {
        addValidElements('span[!data-mce-type|*]');
      }

      /**
       * Name/value map object with valid parents and children to those parents.
       *
       * @example
       * children = {
       *    div:{p:{}, h1:{}}
       * };
       * @field children
       * @type Object
       */
      self.children = children;

      /**
       * Name/value map object with valid styles for each element.
       *
       * @method getValidStyles
       * @type Object
       */
      self.getValidStyles = function () {
        return validStyles;
      };

      /**
       * Name/value map object with valid styles for each element.
       *
       * @method getInvalidStyles
       * @type Object
       */
      self.getInvalidStyles = function () {
        return invalidStyles;
      };

      /**
       * Name/value map object with valid classes for each element.
       *
       * @method getValidClasses
       * @type Object
       */
      self.getValidClasses = function () {
        return validClasses;
      };

      /**
       * Returns a map with boolean attributes.
       *
       * @method getBoolAttrs
       * @return {Object} Name/value lookup map for boolean attributes.
       */
      self.getBoolAttrs = function () {
        return boolAttrMap;
      };

      /**
       * Returns a map with block elements.
       *
       * @method getBlockElements
       * @return {Object} Name/value lookup map for block elements.
       */
      self.getBlockElements = function () {
        return blockElementsMap;
      };

      /**
       * Returns a map with text block elements. Such as: p,h1-h6,div,address
       *
       * @method getTextBlockElements
       * @return {Object} Name/value lookup map for block elements.
       */
      self.getTextBlockElements = function () {
        return textBlockElementsMap;
      };

      /**
       * Returns a map of inline text format nodes for example strong/span or ins.
       *
       * @method getTextInlineElements
       * @return {Object} Name/value lookup map for text format elements.
       */
      self.getTextInlineElements = function () {
        return textInlineElementsMap;
      };

      /**
       * Returns a map with short ended elements such as BR or IMG.
       *
       * @method getShortEndedElements
       * @return {Object} Name/value lookup map for short ended elements.
       */
      self.getShortEndedElements = function () {
        return shortEndedElementsMap;
      };

      /**
       * Returns a map with self closing tags such as <li>.
       *
       * @method getSelfClosingElements
       * @return {Object} Name/value lookup map for self closing tags elements.
       */
      self.getSelfClosingElements = function () {
        return selfClosingElementsMap;
      };

      /**
       * Returns a map with elements that should be treated as contents regardless if it has text
       * content in them or not such as TD, VIDEO or IMG.
       *
       * @method getNonEmptyElements
       * @return {Object} Name/value lookup map for non empty elements.
       */
      self.getNonEmptyElements = function () {
        return nonEmptyElementsMap;
      };

      /**
       * Returns a map with elements that the caret should be moved in front of after enter is
       * pressed
       *
       * @method getMoveCaretBeforeOnEnterElements
       * @return {Object} Name/value lookup map for elements to place the caret in front of.
       */
      self.getMoveCaretBeforeOnEnterElements = function () {
        return moveCaretBeforeOnEnterElementsMap;
      };

      /**
       * Returns a map with elements where white space is to be preserved like PRE or SCRIPT.
       *
       * @method getWhiteSpaceElements
       * @return {Object} Name/value lookup map for white space elements.
       */
      self.getWhiteSpaceElements = function () {
        return whiteSpaceElementsMap;
      };

      /**
       * Returns a map with special elements. These are elements that needs to be parsed
       * in a special way such as script, style, textarea etc. The map object values
       * are regexps used to find the end of the element.
       *
       * @method getSpecialElements
       * @return {Object} Name/value lookup map for special elements.
       */
      self.getSpecialElements = function () {
        return specialElements;
      };

      /**
       * Returns true/false if the specified element and it's child is valid or not
       * according to the schema.
       *
       * @method isValidChild
       * @param {String} name Element name to check for.
       * @param {String} child Element child to verify.
       * @return {Boolean} True/false if the element is a valid child of the specified parent.
       */
      self.isValidChild = function (name, child) {
        var parent = children[name.toLowerCase()];

        return !!(parent && parent[child.toLowerCase()]);
      };

      /**
       * Returns true/false if the specified element name and optional attribute is
       * valid according to the schema.
       *
       * @method isValid
       * @param {String} name Name of element to check.
       * @param {String} attr Optional attribute name to check for.
       * @return {Boolean} True/false if the element and attribute is valid.
       */
      self.isValid = function (name, attr) {
        var attrPatterns, i, rule = getElementRule(name);

        // Check if it's a valid element
        if (rule) {
          if (attr) {
            // Check if attribute name exists
            if (rule.attributes[attr]) {
              return true;
            }

            // Check if attribute matches a regexp pattern
            attrPatterns = rule.attributePatterns;
            if (attrPatterns) {
              i = attrPatterns.length;
              while (i--) {
                if (attrPatterns[i].pattern.test(name)) {
                  return true;
                }
              }
            }
          } else {
            return true;
          }
        }

        // No match
        return false;
      };

      /**
       * Returns true/false if the specified element is valid or not
       * according to the schema.
       *
       * @method getElementRule
       * @param {String} name Element name to check for.
       * @return {Object} Element object or undefined if the element isn't valid.
       */
      self.getElementRule = getElementRule;

      /**
       * Returns an map object of all custom elements.
       *
       * @method getCustomElements
       * @return {Object} Name/value map object of all custom elements.
       */
      self.getCustomElements = function () {
        return customElementsMap;
      };

      /**
       * Parses a valid elements string and adds it to the schema. The valid elements
       * format is for example "element[attr=default|otherattr]".
       * Existing rules will be replaced with the ones specified, so this extends the schema.
       *
       * @method addValidElements
       * @param {String} valid_elements String in the valid elements format to be parsed.
       */
      self.addValidElements = addValidElements;

      /**
       * Parses a valid elements string and sets it to the schema. The valid elements
       * format is for example "element[attr=default|otherattr]".
       * Existing rules will be replaced with the ones specified, so this extends the schema.
       *
       * @method setValidElements
       * @param {String} valid_elements String in the valid elements format to be parsed.
       */
      self.setValidElements = setValidElements;

      /**
       * Adds custom non HTML elements to the schema.
       *
       * @method addCustomElements
       * @param {String} custom_elements Comma separated list of custom elements to add.
       */
      self.addCustomElements = addCustomElements;

      /**
       * Parses a valid children string and adds them to the schema structure. The valid children
       * format is for example: "element[child1|child2]".
       *
       * @method addValidChildren
       * @param {String} valid_children Valid children elements string to parse
       */
      self.addValidChildren = addValidChildren;

      self.elements = elements;
    };
  }
);

/**
 * DOMUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility class for various DOM manipulation and retrieval functions.
 *
 * @class tinymce.dom.DOMUtils
 * @example
 * // Add a class to an element by id in the page
 * tinymce.DOM.addClass('someid', 'someclass');
 *
 * // Add a class to an element by id inside the editor
 * tinymce.activeEditor.dom.addClass('someid', 'someclass');
 */
define(
  'tinymce.core.dom.DOMUtils',
  [
    'tinymce.core.dom.DomQuery',
    'tinymce.core.dom.EventUtils',
    'tinymce.core.dom.Range',
    'tinymce.core.dom.Sizzle',
    'tinymce.core.dom.StyleSheetLoader',
    'tinymce.core.dom.TreeWalker',
    'tinymce.core.Env',
    'tinymce.core.html.Entities',
    'tinymce.core.html.Schema',
    'tinymce.core.html.Styles',
    'tinymce.core.util.Tools'
  ],
  function (DomQuery, EventUtils, Range, Sizzle, StyleSheetLoader, TreeWalker, Env, Entities, Schema, Styles, Tools) {
    // Shorten names
    var each = Tools.each, is = Tools.is, grep = Tools.grep, trim = Tools.trim;
    var isIE = Env.ie;
    var simpleSelectorRe = /^([a-z0-9],?)+$/i;
    var whiteSpaceRegExp = /^[ \t\r\n]*$/;

    function setupAttrHooks(domUtils, settings) {
      var attrHooks = {}, keepValues = settings.keep_values, keepUrlHook;

      keepUrlHook = {
        set: function ($elm, value, name) {
          if (settings.url_converter) {
            value = settings.url_converter.call(settings.url_converter_scope || domUtils, value, name, $elm[0]);
          }

          $elm.attr('data-mce-' + name, value).attr(name, value);
        },

        get: function ($elm, name) {
          return $elm.attr('data-mce-' + name) || $elm.attr(name);
        }
      };

      attrHooks = {
        style: {
          set: function ($elm, value) {
            if (value !== null && typeof value === 'object') {
              $elm.css(value);
              return;
            }

            if (keepValues) {
              $elm.attr('data-mce-style', value);
            }

            $elm.attr('style', value);
          },

          get: function ($elm) {
            var value = $elm.attr('data-mce-style') || $elm.attr('style');

            value = domUtils.serializeStyle(domUtils.parseStyle(value), $elm[0].nodeName);

            return value;
          }
        }
      };

      if (keepValues) {
        attrHooks.href = attrHooks.src = keepUrlHook;
      }

      return attrHooks;
    }

    function updateInternalStyleAttr(domUtils, $elm) {
      var value = $elm.attr('style');

      value = domUtils.serializeStyle(domUtils.parseStyle(value), $elm[0].nodeName);

      if (!value) {
        value = null;
      }

      $elm.attr('data-mce-style', value);
    }

    function nodeIndex(node, normalized) {
      var idx = 0, lastNodeType, nodeType;

      if (node) {
        for (lastNodeType = node.nodeType, node = node.previousSibling; node; node = node.previousSibling) {
          nodeType = node.nodeType;

          // Normalize text nodes
          if (normalized && nodeType == 3) {
            if (nodeType == lastNodeType || !node.nodeValue.length) {
              continue;
            }
          }
          idx++;
          lastNodeType = nodeType;
        }
      }

      return idx;
    }

    /**
     * Constructs a new DOMUtils instance. Consult the Wiki for more details on settings etc for this class.
     *
     * @constructor
     * @method DOMUtils
     * @param {Document} doc Document reference to bind the utility class to.
     * @param {settings} settings Optional settings collection.
     */
    function DOMUtils(doc, settings) {
      var self = this, blockElementsMap;

      self.doc = doc;
      self.win = window;
      self.files = {};
      self.counter = 0;
      self.stdMode = !isIE || doc.documentMode >= 8;
      self.boxModel = !isIE || doc.compatMode == "CSS1Compat" || self.stdMode;
      self.styleSheetLoader = new StyleSheetLoader(doc);
      self.boundEvents = [];
      self.settings = settings = settings || {};
      self.schema = settings.schema ? settings.schema : new Schema({});
      self.styles = new Styles({
        url_converter: settings.url_converter,
        url_converter_scope: settings.url_converter_scope
      }, settings.schema);

      self.fixDoc(doc);
      self.events = settings.ownEvents ? new EventUtils(settings.proxy) : EventUtils.Event;
      self.attrHooks = setupAttrHooks(self, settings);
      blockElementsMap = settings.schema ? settings.schema.getBlockElements() : {};
      self.$ = DomQuery.overrideDefaults(function () {
        return {
          context: doc,
          element: self.getRoot()
        };
      });

      /**
       * Returns true/false if the specified element is a block element or not.
       *
       * @method isBlock
       * @param {Node/String} node Element/Node to check.
       * @return {Boolean} True/False state if the node is a block element or not.
       */
      self.isBlock = function (node) {
        // Fix for #5446
        if (!node) {
          return false;
        }

        // This function is called in module pattern style since it might be executed with the wrong this scope
        var type = node.nodeType;

        // If it's a node then check the type and use the nodeName
        if (type) {
          return !!(type === 1 && blockElementsMap[node.nodeName]);
        }

        return !!blockElementsMap[node];
      };
    }

    DOMUtils.prototype = {
      $$: function (elm) {
        if (typeof elm == 'string') {
          elm = this.get(elm);
        }

        return this.$(elm);
      },

      root: null,

      fixDoc: function (doc) {
        var settings = this.settings, name;

        if (isIE && settings.schema) {
          // Add missing HTML 4/5 elements to IE
          ('abbr article aside audio canvas ' +
            'details figcaption figure footer ' +
            'header hgroup mark menu meter nav ' +
            'output progress section summary ' +
            'time video').replace(/\w+/g, function (name) {
              doc.createElement(name);
            });

          // Create all custom elements
          for (name in settings.schema.getCustomElements()) {
            doc.createElement(name);
          }
        }
      },

      clone: function (node, deep) {
        var self = this, clone, doc;

        // TODO: Add feature detection here in the future
        if (!isIE || node.nodeType !== 1 || deep) {
          return node.cloneNode(deep);
        }

        doc = self.doc;

        // Make a HTML5 safe shallow copy
        if (!deep) {
          clone = doc.createElement(node.nodeName);

          // Copy attribs
          each(self.getAttribs(node), function (attr) {
            self.setAttrib(clone, attr.nodeName, self.getAttrib(node, attr.nodeName));
          });

          return clone;
        }

        return clone.firstChild;
      },

      /**
       * Returns the root node of the document. This is normally the body but might be a DIV. Parents like getParent will not
       * go above the point of this root node.
       *
       * @method getRoot
       * @return {Element} Root element for the utility class.
       */
      getRoot: function () {
        var self = this;

        return self.settings.root_element || self.doc.body;
      },

      /**
       * Returns the viewport of the window.
       *
       * @method getViewPort
       * @param {Window} win Optional window to get viewport of.
       * @return {Object} Viewport object with fields x, y, w and h.
       */
      getViewPort: function (win) {
        var doc, rootElm;

        win = !win ? this.win : win;
        doc = win.document;
        rootElm = this.boxModel ? doc.documentElement : doc.body;

        // Returns viewport size excluding scrollbars
        return {
          x: win.pageXOffset || rootElm.scrollLeft,
          y: win.pageYOffset || rootElm.scrollTop,
          w: win.innerWidth || rootElm.clientWidth,
          h: win.innerHeight || rootElm.clientHeight
        };
      },

      /**
       * Returns the rectangle for a specific element.
       *
       * @method getRect
       * @param {Element/String} elm Element object or element ID to get rectangle from.
       * @return {object} Rectangle for specified element object with x, y, w, h fields.
       */
      getRect: function (elm) {
        var self = this, pos, size;

        elm = self.get(elm);
        pos = self.getPos(elm);
        size = self.getSize(elm);

        return {
          x: pos.x, y: pos.y,
          w: size.w, h: size.h
        };
      },

      /**
       * Returns the size dimensions of the specified element.
       *
       * @method getSize
       * @param {Element/String} elm Element object or element ID to get rectangle from.
       * @return {object} Rectangle for specified element object with w, h fields.
       */
      getSize: function (elm) {
        var self = this, w, h;

        elm = self.get(elm);
        w = self.getStyle(elm, 'width');
        h = self.getStyle(elm, 'height');

        // Non pixel value, then force offset/clientWidth
        if (w.indexOf('px') === -1) {
          w = 0;
        }

        // Non pixel value, then force offset/clientWidth
        if (h.indexOf('px') === -1) {
          h = 0;
        }

        return {
          w: parseInt(w, 10) || elm.offsetWidth || elm.clientWidth,
          h: parseInt(h, 10) || elm.offsetHeight || elm.clientHeight
        };
      },

      /**
       * Returns a node by the specified selector function. This function will
       * loop through all parent nodes and call the specified function for each node.
       * If the function then returns true indicating that it has found what it was looking for, the loop execution will then end
       * and the node it found will be returned.
       *
       * @method getParent
       * @param {Node/String} node DOM node to search parents on or ID string.
       * @param {function} selector Selection function or CSS selector to execute on each node.
       * @param {Node} root Optional root element, never go beyond this point.
       * @return {Node} DOM Node or null if it wasn't found.
       */
      getParent: function (node, selector, root) {
        return this.getParents(node, selector, root, false);
      },

      /**
       * Returns a node list of all parents matching the specified selector function or pattern.
       * If the function then returns true indicating that it has found what it was looking for and that node will be collected.
       *
       * @method getParents
       * @param {Node/String} node DOM node to search parents on or ID string.
       * @param {function} selector Selection function to execute on each node or CSS pattern.
       * @param {Node} root Optional root element, never go beyond this point.
       * @return {Array} Array of nodes or null if it wasn't found.
       */
      getParents: function (node, selector, root, collect) {
        var self = this, selectorVal, result = [];

        node = self.get(node);
        collect = collect === undefined;

        // Default root on inline mode
        root = root || (self.getRoot().nodeName != 'BODY' ? self.getRoot().parentNode : null);

        // Wrap node name as func
        if (is(selector, 'string')) {
          selectorVal = selector;

          if (selector === '*') {
            selector = function (node) {
              return node.nodeType == 1;
            };
          } else {
            selector = function (node) {
              return self.is(node, selectorVal);
            };
          }
        }

        while (node) {
          if (node == root || !node.nodeType || node.nodeType === 9) {
            break;
          }

          if (!selector || selector(node)) {
            if (collect) {
              result.push(node);
            } else {
              return node;
            }
          }

          node = node.parentNode;
        }

        return collect ? result : null;
      },

      /**
       * Returns the specified element by ID or the input element if it isn't a string.
       *
       * @method get
       * @param {String/Element} n Element id to look for or element to just pass though.
       * @return {Element} Element matching the specified id or null if it wasn't found.
       */
      get: function (elm) {
        var name;

        if (elm && this.doc && typeof elm == 'string') {
          name = elm;
          elm = this.doc.getElementById(elm);

          // IE and Opera returns meta elements when they match the specified input ID, but getElementsByName seems to do the trick
          if (elm && elm.id !== name) {
            return this.doc.getElementsByName(name)[1];
          }
        }

        return elm;
      },

      /**
       * Returns the next node that matches selector or function
       *
       * @method getNext
       * @param {Node} node Node to find siblings from.
       * @param {String/function} selector Selector CSS expression or function.
       * @return {Node} Next node item matching the selector or null if it wasn't found.
       */
      getNext: function (node, selector) {
        return this._findSib(node, selector, 'nextSibling');
      },

      /**
       * Returns the previous node that matches selector or function
       *
       * @method getPrev
       * @param {Node} node Node to find siblings from.
       * @param {String/function} selector Selector CSS expression or function.
       * @return {Node} Previous node item matching the selector or null if it wasn't found.
       */
      getPrev: function (node, selector) {
        return this._findSib(node, selector, 'previousSibling');
      },

      // #ifndef jquery

      /**
       * Selects specific elements by a CSS level 3 pattern. For example "div#a1 p.test".
       * This function is optimized for the most common patterns needed in TinyMCE but it also performs well enough
       * on more complex patterns.
       *
       * @method select
       * @param {String} selector CSS level 3 pattern to select/find elements by.
       * @param {Object} scope Optional root element/scope element to search in.
       * @return {Array} Array with all matched elements.
       * @example
       * // Adds a class to all paragraphs in the currently active editor
       * tinymce.activeEditor.dom.addClass(tinymce.activeEditor.dom.select('p'), 'someclass');
       *
       * // Adds a class to all spans that have the test class in the currently active editor
       * tinymce.activeEditor.dom.addClass(tinymce.activeEditor.dom.select('span.test'), 'someclass')
       */
      select: function (selector, scope) {
        var self = this;

        /*eslint new-cap:0 */
        return Sizzle(selector, self.get(scope) || self.settings.root_element || self.doc, []);
      },

      /**
       * Returns true/false if the specified element matches the specified css pattern.
       *
       * @method is
       * @param {Node/NodeList} elm DOM node to match or an array of nodes to match.
       * @param {String} selector CSS pattern to match the element against.
       */
      is: function (elm, selector) {
        var i;

        if (!elm) {
          return false;
        }

        // If it isn't an array then try to do some simple selectors instead of Sizzle for to boost performance
        if (elm.length === undefined) {
          // Simple all selector
          if (selector === '*') {
            return elm.nodeType == 1;
          }

          // Simple selector just elements
          if (simpleSelectorRe.test(selector)) {
            selector = selector.toLowerCase().split(/,/);
            elm = elm.nodeName.toLowerCase();

            for (i = selector.length - 1; i >= 0; i--) {
              if (selector[i] == elm) {
                return true;
              }
            }

            return false;
          }
        }

        // Is non element
        if (elm.nodeType && elm.nodeType != 1) {
          return false;
        }

        var elms = elm.nodeType ? [elm] : elm;

        /*eslint new-cap:0 */
        return Sizzle(selector, elms[0].ownerDocument || elms[0], null, elms).length > 0;
      },

      // #endif

      /**
       * Adds the specified element to another element or elements.
       *
       * @method add
       * @param {String/Element/Array} parentElm Element id string, DOM node element or array of ids or elements to add to.
       * @param {String/Element} name Name of new element to add or existing element to add.
       * @param {Object} attrs Optional object collection with arguments to add to the new element(s).
       * @param {String} html Optional inner HTML contents to add for each element.
       * @param {Boolean} create Optional flag if the element should be created or added.
       * @return {Element/Array} Element that got created, or an array of created elements if multiple input elements
       * were passed in.
       * @example
       * // Adds a new paragraph to the end of the active editor
       * tinymce.activeEditor.dom.add(tinymce.activeEditor.getBody(), 'p', {title: 'my title'}, 'Some content');
       */
      add: function (parentElm, name, attrs, html, create) {
        var self = this;

        return this.run(parentElm, function (parentElm) {
          var newElm;

          newElm = is(name, 'string') ? self.doc.createElement(name) : name;
          self.setAttribs(newElm, attrs);

          if (html) {
            if (html.nodeType) {
              newElm.appendChild(html);
            } else {
              self.setHTML(newElm, html);
            }
          }

          return !create ? parentElm.appendChild(newElm) : newElm;
        });
      },

      /**
       * Creates a new element.
       *
       * @method create
       * @param {String} name Name of new element.
       * @param {Object} attrs Optional object name/value collection with element attributes.
       * @param {String} html Optional HTML string to set as inner HTML of the element.
       * @return {Element} HTML DOM node element that got created.
       * @example
       * // Adds an element where the caret/selection is in the active editor
       * var el = tinymce.activeEditor.dom.create('div', {id: 'test', 'class': 'myclass'}, 'some content');
       * tinymce.activeEditor.selection.setNode(el);
       */
      create: function (name, attrs, html) {
        return this.add(this.doc.createElement(name), name, attrs, html, 1);
      },

      /**
       * Creates HTML string for element. The element will be closed unless an empty inner HTML string is passed in.
       *
       * @method createHTML
       * @param {String} name Name of new element.
       * @param {Object} attrs Optional object name/value collection with element attributes.
       * @param {String} html Optional HTML string to set as inner HTML of the element.
       * @return {String} String with new HTML element, for example: <a href="#">test</a>.
       * @example
       * // Creates a html chunk and inserts it at the current selection/caret location
       * tinymce.activeEditor.selection.setContent(tinymce.activeEditor.dom.createHTML('a', {href: 'test.html'}, 'some line'));
       */
      createHTML: function (name, attrs, html) {
        var outHtml = '', key;

        outHtml += '<' + name;

        for (key in attrs) {
          if (attrs.hasOwnProperty(key) && attrs[key] !== null && typeof attrs[key] != 'undefined') {
            outHtml += ' ' + key + '="' + this.encode(attrs[key]) + '"';
          }
        }

        // A call to tinymce.is doesn't work for some odd reason on IE9 possible bug inside their JS runtime
        if (typeof html != "undefined") {
          return outHtml + '>' + html + '</' + name + '>';
        }

        return outHtml + ' />';
      },

      /**
       * Creates a document fragment out of the specified HTML string.
       *
       * @method createFragment
       * @param {String} html Html string to create fragment from.
       * @return {DocumentFragment} Document fragment node.
       */
      createFragment: function (html) {
        var frag, node, doc = this.doc, container;

        container = doc.createElement("div");
        frag = doc.createDocumentFragment();

        if (html) {
          container.innerHTML = html;
        }

        while ((node = container.firstChild)) {
          frag.appendChild(node);
        }

        return frag;
      },

      /**
       * Removes/deletes the specified element(s) from the DOM.
       *
       * @method remove
       * @param {String/Element/Array} node ID of element or DOM element object or array containing multiple elements/ids.
       * @param {Boolean} keepChildren Optional state to keep children or not. If set to true all children will be
       * placed at the location of the removed element.
       * @return {Element/Array} HTML DOM element that got removed, or an array of removed elements if multiple input elements
       * were passed in.
       * @example
       * // Removes all paragraphs in the active editor
       * tinymce.activeEditor.dom.remove(tinymce.activeEditor.dom.select('p'));
       *
       * // Removes an element by id in the document
       * tinymce.DOM.remove('mydiv');
       */
      remove: function (node, keepChildren) {
        node = this.$$(node);

        if (keepChildren) {
          node.each(function () {
            var child;

            while ((child = this.firstChild)) {
              if (child.nodeType == 3 && child.data.length === 0) {
                this.removeChild(child);
              } else {
                this.parentNode.insertBefore(child, this);
              }
            }
          }).remove();
        } else {
          node.remove();
        }

        return node.length > 1 ? node.toArray() : node[0];
      },

      /**
       * Sets the CSS style value on a HTML element. The name can be a camelcase string
       * or the CSS style name like background-color.
       *
       * @method setStyle
       * @param {String/Element/Array} elm HTML element/Array of elements to set CSS style value on.
       * @param {String} name Name of the style value to set.
       * @param {String} value Value to set on the style.
       * @example
       * // Sets a style value on all paragraphs in the currently active editor
       * tinymce.activeEditor.dom.setStyle(tinymce.activeEditor.dom.select('p'), 'background-color', 'red');
       *
       * // Sets a style value to an element by id in the current document
       * tinymce.DOM.setStyle('mydiv', 'background-color', 'red');
       */
      setStyle: function (elm, name, value) {
        elm = this.$$(elm).css(name, value);

        if (this.settings.update_styles) {
          updateInternalStyleAttr(this, elm);
        }
      },

      /**
       * Returns the current style or runtime/computed value of an element.
       *
       * @method getStyle
       * @param {String/Element} elm HTML element or element id string to get style from.
       * @param {String} name Style name to return.
       * @param {Boolean} computed Computed style.
       * @return {String} Current style or computed style value of an element.
       */
      getStyle: function (elm, name, computed) {
        elm = this.$$(elm);

        if (computed) {
          return elm.css(name);
        }

        // Camelcase it, if needed
        name = name.replace(/-(\D)/g, function (a, b) {
          return b.toUpperCase();
        });

        if (name == 'float') {
          name = Env.ie && Env.ie < 12 ? 'styleFloat' : 'cssFloat';
        }

        return elm[0] && elm[0].style ? elm[0].style[name] : undefined;
      },

      /**
       * Sets multiple styles on the specified element(s).
       *
       * @method setStyles
       * @param {Element/String/Array} elm DOM element, element id string or array of elements/ids to set styles on.
       * @param {Object} styles Name/Value collection of style items to add to the element(s).
       * @example
       * // Sets styles on all paragraphs in the currently active editor
       * tinymce.activeEditor.dom.setStyles(tinymce.activeEditor.dom.select('p'), {'background-color': 'red', 'color': 'green'});
       *
       * // Sets styles to an element by id in the current document
       * tinymce.DOM.setStyles('mydiv', {'background-color': 'red', 'color': 'green'});
       */
      setStyles: function (elm, styles) {
        elm = this.$$(elm).css(styles);

        if (this.settings.update_styles) {
          updateInternalStyleAttr(this, elm);
        }
      },

      /**
       * Removes all attributes from an element or elements.
       *
       * @method removeAllAttribs
       * @param {Element/String/Array} e DOM element, element id string or array of elements/ids to remove attributes from.
       */
      removeAllAttribs: function (e) {
        return this.run(e, function (e) {
          var i, attrs = e.attributes;
          for (i = attrs.length - 1; i >= 0; i--) {
            e.removeAttributeNode(attrs.item(i));
          }
        });
      },

      /**
       * Sets the specified attribute of an element or elements.
       *
       * @method setAttrib
       * @param {Element/String/Array} elm DOM element, element id string or array of elements/ids to set attribute on.
       * @param {String} name Name of attribute to set.
       * @param {String} value Value to set on the attribute - if this value is falsy like null, 0 or '' it will remove
       * the attribute instead.
       * @example
       * // Sets class attribute on all paragraphs in the active editor
       * tinymce.activeEditor.dom.setAttrib(tinymce.activeEditor.dom.select('p'), 'class', 'myclass');
       *
       * // Sets class attribute on a specific element in the current page
       * tinymce.dom.setAttrib('mydiv', 'class', 'myclass');
       */
      setAttrib: function (elm, name, value) {
        var self = this, originalValue, hook, settings = self.settings;

        if (value === '') {
          value = null;
        }

        elm = self.$$(elm);
        originalValue = elm.attr(name);

        if (!elm.length) {
          return;
        }

        hook = self.attrHooks[name];
        if (hook && hook.set) {
          hook.set(elm, value, name);
        } else {
          elm.attr(name, value);
        }

        if (originalValue != value && settings.onSetAttrib) {
          settings.onSetAttrib({
            attrElm: elm,
            attrName: name,
            attrValue: value
          });
        }
      },

      /**
       * Sets two or more specified attributes of an element or elements.
       *
       * @method setAttribs
       * @param {Element/String/Array} elm DOM element, element id string or array of elements/ids to set attributes on.
       * @param {Object} attrs Name/Value collection of attribute items to add to the element(s).
       * @example
       * // Sets class and title attributes on all paragraphs in the active editor
       * tinymce.activeEditor.dom.setAttribs(tinymce.activeEditor.dom.select('p'), {'class': 'myclass', title: 'some title'});
       *
       * // Sets class and title attributes on a specific element in the current page
       * tinymce.DOM.setAttribs('mydiv', {'class': 'myclass', title: 'some title'});
       */
      setAttribs: function (elm, attrs) {
        var self = this;

        self.$$(elm).each(function (i, node) {
          each(attrs, function (value, name) {
            self.setAttrib(node, name, value);
          });
        });
      },

      /**
       * Returns the specified attribute by name.
       *
       * @method getAttrib
       * @param {String/Element} elm Element string id or DOM element to get attribute from.
       * @param {String} name Name of attribute to get.
       * @param {String} defaultVal Optional default value to return if the attribute didn't exist.
       * @return {String} Attribute value string, default value or null if the attribute wasn't found.
       */
      getAttrib: function (elm, name, defaultVal) {
        var self = this, hook, value;

        elm = self.$$(elm);

        if (elm.length) {
          hook = self.attrHooks[name];

          if (hook && hook.get) {
            value = hook.get(elm, name);
          } else {
            value = elm.attr(name);
          }
        }

        if (typeof value == 'undefined') {
          value = defaultVal || '';
        }

        return value;
      },

      /**
       * Returns the absolute x, y position of a node. The position will be returned in an object with x, y fields.
       *
       * @method getPos
       * @param {Element/String} elm HTML element or element id to get x, y position from.
       * @param {Element} rootElm Optional root element to stop calculations at.
       * @return {object} Absolute position of the specified element object with x, y fields.
       */
      getPos: function (elm, rootElm) {
        var self = this, x = 0, y = 0, offsetParent, doc = self.doc, body = doc.body, pos;

        elm = self.get(elm);
        rootElm = rootElm || body;

        if (elm) {
          // Use getBoundingClientRect if it exists since it's faster than looping offset nodes
          // Fallback to offsetParent calculations if the body isn't static better since it stops at the body root
          if (rootElm === body && elm.getBoundingClientRect && DomQuery(body).css('position') === 'static') {
            pos = elm.getBoundingClientRect();
            rootElm = self.boxModel ? doc.documentElement : body;

            // Add scroll offsets from documentElement or body since IE with the wrong box model will use d.body and so do WebKit
            // Also remove the body/documentelement clientTop/clientLeft on IE 6, 7 since they offset the position
            x = pos.left + (doc.documentElement.scrollLeft || body.scrollLeft) - rootElm.clientLeft;
            y = pos.top + (doc.documentElement.scrollTop || body.scrollTop) - rootElm.clientTop;

            return { x: x, y: y };
          }

          offsetParent = elm;
          while (offsetParent && offsetParent != rootElm && offsetParent.nodeType) {
            x += offsetParent.offsetLeft || 0;
            y += offsetParent.offsetTop || 0;
            offsetParent = offsetParent.offsetParent;
          }

          offsetParent = elm.parentNode;
          while (offsetParent && offsetParent != rootElm && offsetParent.nodeType) {
            x -= offsetParent.scrollLeft || 0;
            y -= offsetParent.scrollTop || 0;
            offsetParent = offsetParent.parentNode;
          }
        }

        return { x: x, y: y };
      },

      /**
       * Parses the specified style value into an object collection. This parser will also
       * merge and remove any redundant items that browsers might have added. It will also convert non-hex
       * colors to hex values. Urls inside the styles will also be converted to absolute/relative based on settings.
       *
       * @method parseStyle
       * @param {String} cssText Style value to parse, for example: border:1px solid red;.
       * @return {Object} Object representation of that style, for example: {border: '1px solid red'}
       */
      parseStyle: function (cssText) {
        return this.styles.parse(cssText);
      },

      /**
       * Serializes the specified style object into a string.
       *
       * @method serializeStyle
       * @param {Object} styles Object to serialize as string, for example: {border: '1px solid red'}
       * @param {String} name Optional element name.
       * @return {String} String representation of the style object, for example: border: 1px solid red.
       */
      serializeStyle: function (styles, name) {
        return this.styles.serialize(styles, name);
      },

      /**
       * Adds a style element at the top of the document with the specified cssText content.
       *
       * @method addStyle
       * @param {String} cssText CSS Text style to add to top of head of document.
       */
      addStyle: function (cssText) {
        var self = this, doc = self.doc, head, styleElm;

        // Prevent inline from loading the same styles twice
        if (self !== DOMUtils.DOM && doc === document) {
          var addedStyles = DOMUtils.DOM.addedStyles;

          addedStyles = addedStyles || [];
          if (addedStyles[cssText]) {
            return;
          }

          addedStyles[cssText] = true;
          DOMUtils.DOM.addedStyles = addedStyles;
        }

        // Create style element if needed
        styleElm = doc.getElementById('mceDefaultStyles');
        if (!styleElm) {
          styleElm = doc.createElement('style');
          styleElm.id = 'mceDefaultStyles';
          styleElm.type = 'text/css';

          head = doc.getElementsByTagName('head')[0];
          if (head.firstChild) {
            head.insertBefore(styleElm, head.firstChild);
          } else {
            head.appendChild(styleElm);
          }
        }

        // Append style data to old or new style element
        if (styleElm.styleSheet) {
          styleElm.styleSheet.cssText += cssText;
        } else {
          styleElm.appendChild(doc.createTextNode(cssText));
        }
      },

      /**
       * Imports/loads the specified CSS file into the document bound to the class.
       *
       * @method loadCSS
       * @param {String} url URL to CSS file to load.
       * @example
       * // Loads a CSS file dynamically into the current document
       * tinymce.DOM.loadCSS('somepath/some.css');
       *
       * // Loads a CSS file into the currently active editor instance
       * tinymce.activeEditor.dom.loadCSS('somepath/some.css');
       *
       * // Loads a CSS file into an editor instance by id
       * tinymce.get('someid').dom.loadCSS('somepath/some.css');
       *
       * // Loads multiple CSS files into the current document
       * tinymce.DOM.loadCSS('somepath/some.css,somepath/someother.css');
       */
      loadCSS: function (url) {
        var self = this, doc = self.doc, head;

        // Prevent inline from loading the same CSS file twice
        if (self !== DOMUtils.DOM && doc === document) {
          DOMUtils.DOM.loadCSS(url);
          return;
        }

        if (!url) {
          url = '';
        }

        head = doc.getElementsByTagName('head')[0];

        each(url.split(','), function (url) {
          var link;

          url = Tools._addCacheSuffix(url);

          if (self.files[url]) {
            return;
          }

          self.files[url] = true;
          link = self.create('link', { rel: 'stylesheet', href: url });

          // IE 8 has a bug where dynamically loading stylesheets would produce a 1 item remaining bug
          // This fix seems to resolve that issue by recalcing the document once a stylesheet finishes loading
          // It's ugly but it seems to work fine.
          if (isIE && doc.documentMode && doc.recalc) {
            link.onload = function () {
              if (doc.recalc) {
                doc.recalc();
              }

              link.onload = null;
            };
          }

          head.appendChild(link);
        });
      },

      /**
       * Adds a class to the specified element or elements.
       *
       * @method addClass
       * @param {String/Element/Array} elm Element ID string or DOM element or array with elements or IDs.
       * @param {String} cls Class name to add to each element.
       * @return {String/Array} String with new class value or array with new class values for all elements.
       * @example
       * // Adds a class to all paragraphs in the active editor
       * tinymce.activeEditor.dom.addClass(tinymce.activeEditor.dom.select('p'), 'myclass');
       *
       * // Adds a class to a specific element in the current page
       * tinymce.DOM.addClass('mydiv', 'myclass');
       */
      addClass: function (elm, cls) {
        this.$$(elm).addClass(cls);
      },

      /**
       * Removes a class from the specified element or elements.
       *
       * @method removeClass
       * @param {String/Element/Array} elm Element ID string or DOM element or array with elements or IDs.
       * @param {String} cls Class name to remove from each element.
       * @return {String/Array} String of remaining class name(s), or an array of strings if multiple input elements
       * were passed in.
       * @example
       * // Removes a class from all paragraphs in the active editor
       * tinymce.activeEditor.dom.removeClass(tinymce.activeEditor.dom.select('p'), 'myclass');
       *
       * // Removes a class from a specific element in the current page
       * tinymce.DOM.removeClass('mydiv', 'myclass');
       */
      removeClass: function (elm, cls) {
        this.toggleClass(elm, cls, false);
      },

      /**
       * Returns true if the specified element has the specified class.
       *
       * @method hasClass
       * @param {String/Element} elm HTML element or element id string to check CSS class on.
       * @param {String} cls CSS class to check for.
       * @return {Boolean} true/false if the specified element has the specified class.
       */
      hasClass: function (elm, cls) {
        return this.$$(elm).hasClass(cls);
      },

      /**
       * Toggles the specified class on/off.
       *
       * @method toggleClass
       * @param {Element} elm Element to toggle class on.
       * @param {[type]} cls Class to toggle on/off.
       * @param {[type]} state Optional state to set.
       */
      toggleClass: function (elm, cls, state) {
        this.$$(elm).toggleClass(cls, state).each(function () {
          if (this.className === '') {
            DomQuery(this).attr('class', null);
          }
        });
      },

      /**
       * Shows the specified element(s) by ID by setting the "display" style.
       *
       * @method show
       * @param {String/Element/Array} elm ID of DOM element or DOM element or array with elements or IDs to show.
       */
      show: function (elm) {
        this.$$(elm).show();
      },

      /**
       * Hides the specified element(s) by ID by setting the "display" style.
       *
       * @method hide
       * @param {String/Element/Array} elm ID of DOM element or DOM element or array with elements or IDs to hide.
       * @example
       * // Hides an element by id in the document
       * tinymce.DOM.hide('myid');
       */
      hide: function (elm) {
        this.$$(elm).hide();
      },

      /**
       * Returns true/false if the element is hidden or not by checking the "display" style.
       *
       * @method isHidden
       * @param {String/Element} elm Id or element to check display state on.
       * @return {Boolean} true/false if the element is hidden or not.
       */
      isHidden: function (elm) {
        return this.$$(elm).css('display') == 'none';
      },

      /**
       * Returns a unique id. This can be useful when generating elements on the fly.
       * This method will not check if the element already exists.
       *
       * @method uniqueId
       * @param {String} prefix Optional prefix to add in front of all ids - defaults to "mce_".
       * @return {String} Unique id.
       */
      uniqueId: function (prefix) {
        return (!prefix ? 'mce_' : prefix) + (this.counter++);
      },

      /**
       * Sets the specified HTML content inside the element or elements. The HTML will first be processed. This means
       * URLs will get converted, hex color values fixed etc. Check processHTML for details.
       *
       * @method setHTML
       * @param {Element/String/Array} elm DOM element, element id string or array of elements/ids to set HTML inside of.
       * @param {String} html HTML content to set as inner HTML of the element.
       * @example
       * // Sets the inner HTML of all paragraphs in the active editor
       * tinymce.activeEditor.dom.setHTML(tinymce.activeEditor.dom.select('p'), 'some inner html');
       *
       * // Sets the inner HTML of an element by id in the document
       * tinymce.DOM.setHTML('mydiv', 'some inner html');
       */
      setHTML: function (elm, html) {
        elm = this.$$(elm);

        if (isIE) {
          elm.each(function (i, target) {
            if (target.canHaveHTML === false) {
              return;
            }

            // Remove all child nodes, IE keeps empty text nodes in DOM
            while (target.firstChild) {
              target.removeChild(target.firstChild);
            }

            try {
              // IE will remove comments from the beginning
              // unless you padd the contents with something
              target.innerHTML = '<br>' + html;
              target.removeChild(target.firstChild);
            } catch (ex) {
              // IE sometimes produces an unknown runtime error on innerHTML if it's a div inside a p
              DomQuery('<div></div>').html('<br>' + html).contents().slice(1).appendTo(target);
            }

            return html;
          });
        } else {
          elm.html(html);
        }
      },

      /**
       * Returns the outer HTML of an element.
       *
       * @method getOuterHTML
       * @param {String/Element} elm Element ID or element object to get outer HTML from.
       * @return {String} Outer HTML string.
       * @example
       * tinymce.DOM.getOuterHTML(editorElement);
       * tinymce.activeEditor.getOuterHTML(tinymce.activeEditor.getBody());
       */
      getOuterHTML: function (elm) {
        elm = this.get(elm);

        // Older FF doesn't have outerHTML 3.6 is still used by some orgaizations
        return elm.nodeType == 1 && "outerHTML" in elm ? elm.outerHTML : DomQuery('<div></div>').append(DomQuery(elm).clone()).html();
      },

      /**
       * Sets the specified outer HTML on an element or elements.
       *
       * @method setOuterHTML
       * @param {Element/String/Array} elm DOM element, element id string or array of elements/ids to set outer HTML on.
       * @param {Object} html HTML code to set as outer value for the element.
       * @example
       * // Sets the outer HTML of all paragraphs in the active editor
       * tinymce.activeEditor.dom.setOuterHTML(tinymce.activeEditor.dom.select('p'), '<div>some html</div>');
       *
       * // Sets the outer HTML of an element by id in the document
       * tinymce.DOM.setOuterHTML('mydiv', '<div>some html</div>');
       */
      setOuterHTML: function (elm, html) {
        var self = this;

        self.$$(elm).each(function () {
          try {
            // Older FF doesn't have outerHTML 3.6 is still used by some organizations
            if ("outerHTML" in this) {
              this.outerHTML = html;
              return;
            }
          } catch (ex) {
            // Ignore
          }

          // OuterHTML for IE it sometimes produces an "unknown runtime error"
          self.remove(DomQuery(this).html(html), true);
        });
      },

      /**
       * Entity decodes a string. This method decodes any HTML entities, such as &aring;.
       *
       * @method decode
       * @param {String} s String to decode entities on.
       * @return {String} Entity decoded string.
       */
      decode: Entities.decode,

      /**
       * Entity encodes a string. This method encodes the most common entities, such as <>"&.
       *
       * @method encode
       * @param {String} text String to encode with entities.
       * @return {String} Entity encoded string.
       */
      encode: Entities.encodeAllRaw,

      /**
       * Inserts an element after the reference element.
       *
       * @method insertAfter
       * @param {Element} node Element to insert after the reference.
       * @param {Element/String/Array} referenceNode Reference element, element id or array of elements to insert after.
       * @return {Element/Array} Element that got added or an array with elements.
       */
      insertAfter: function (node, referenceNode) {
        referenceNode = this.get(referenceNode);

        return this.run(node, function (node) {
          var parent, nextSibling;

          parent = referenceNode.parentNode;
          nextSibling = referenceNode.nextSibling;

          if (nextSibling) {
            parent.insertBefore(node, nextSibling);
          } else {
            parent.appendChild(node);
          }

          return node;
        });
      },

      /**
       * Replaces the specified element or elements with the new element specified. The new element will
       * be cloned if multiple input elements are passed in.
       *
       * @method replace
       * @param {Element} newElm New element to replace old ones with.
       * @param {Element/String/Array} oldElm Element DOM node, element id or array of elements or ids to replace.
       * @param {Boolean} keepChildren Optional keep children state, if set to true child nodes from the old object will be added
       * to new ones.
       */
      replace: function (newElm, oldElm, keepChildren) {
        var self = this;

        return self.run(oldElm, function (oldElm) {
          if (is(oldElm, 'array')) {
            newElm = newElm.cloneNode(true);
          }

          if (keepChildren) {
            each(grep(oldElm.childNodes), function (node) {
              newElm.appendChild(node);
            });
          }

          return oldElm.parentNode.replaceChild(newElm, oldElm);
        });
      },

      /**
       * Renames the specified element and keeps its attributes and children.
       *
       * @method rename
       * @param {Element} elm Element to rename.
       * @param {String} name Name of the new element.
       * @return {Element} New element or the old element if it needed renaming.
       */
      rename: function (elm, name) {
        var self = this, newElm;

        if (elm.nodeName != name.toUpperCase()) {
          // Rename block element
          newElm = self.create(name);

          // Copy attribs to new block
          each(self.getAttribs(elm), function (attrNode) {
            self.setAttrib(newElm, attrNode.nodeName, self.getAttrib(elm, attrNode.nodeName));
          });

          // Replace block
          self.replace(newElm, elm, 1);
        }

        return newElm || elm;
      },

      /**
       * Find the common ancestor of two elements. This is a shorter method than using the DOM Range logic.
       *
       * @method findCommonAncestor
       * @param {Element} a Element to find common ancestor of.
       * @param {Element} b Element to find common ancestor of.
       * @return {Element} Common ancestor element of the two input elements.
       */
      findCommonAncestor: function (a, b) {
        var ps = a, pe;

        while (ps) {
          pe = b;

          while (pe && ps != pe) {
            pe = pe.parentNode;
          }

          if (ps == pe) {
            break;
          }

          ps = ps.parentNode;
        }

        if (!ps && a.ownerDocument) {
          return a.ownerDocument.documentElement;
        }

        return ps;
      },

      /**
       * Parses the specified RGB color value and returns a hex version of that color.
       *
       * @method toHex
       * @param {String} rgbVal RGB string value like rgb(1,2,3)
       * @return {String} Hex version of that RGB value like #FF00FF.
       */
      toHex: function (rgbVal) {
        return this.styles.toHex(Tools.trim(rgbVal));
      },

      /**
       * Executes the specified function on the element by id or dom element node or array of elements/id.
       *
       * @method run
       * @param {String/Element/Array} elm ID or DOM element object or array with ids or elements.
       * @param {function} func Function to execute for each item.
       * @param {Object} scope Optional scope to execute the function in.
       * @return {Object/Array} Single object, or an array of objects if multiple input elements were passed in.
       */
      run: function (elm, func, scope) {
        var self = this, result;

        if (typeof elm === 'string') {
          elm = self.get(elm);
        }

        if (!elm) {
          return false;
        }

        scope = scope || this;
        if (!elm.nodeType && (elm.length || elm.length === 0)) {
          result = [];

          each(elm, function (elm, i) {
            if (elm) {
              if (typeof elm == 'string') {
                elm = self.get(elm);
              }

              result.push(func.call(scope, elm, i));
            }
          });

          return result;
        }

        return func.call(scope, elm);
      },

      /**
       * Returns a NodeList with attributes for the element.
       *
       * @method getAttribs
       * @param {HTMLElement/string} elm Element node or string id to get attributes from.
       * @return {NodeList} NodeList with attributes.
       */
      getAttribs: function (elm) {
        var attrs;

        elm = this.get(elm);

        if (!elm) {
          return [];
        }

        if (isIE) {
          attrs = [];

          // Object will throw exception in IE
          if (elm.nodeName == 'OBJECT') {
            return elm.attributes;
          }

          // IE doesn't keep the selected attribute if you clone option elements
          if (elm.nodeName === 'OPTION' && this.getAttrib(elm, 'selected')) {
            attrs.push({ specified: 1, nodeName: 'selected' });
          }

          // It's crazy that this is faster in IE but it's because it returns all attributes all the time
          var attrRegExp = /<\/?[\w:\-]+ ?|=[\"][^\"]+\"|=\'[^\']+\'|=[\w\-]+|>/gi;
          elm.cloneNode(false).outerHTML.replace(attrRegExp, '').replace(/[\w:\-]+/gi, function (a) {
            attrs.push({ specified: 1, nodeName: a });
          });

          return attrs;
        }

        return elm.attributes;
      },

      /**
       * Returns true/false if the specified node is to be considered empty or not.
       *
       * @example
       * tinymce.DOM.isEmpty(node, {img: true});
       * @method isEmpty
       * @param {Object} elements Optional name/value object with elements that are automatically treated as non-empty elements.
       * @return {Boolean} true/false if the node is empty or not.
       */
      isEmpty: function (node, elements) {
        var self = this, i, attributes, type, whitespace, walker, name, brCount = 0;

        node = node.firstChild;
        if (node) {
          walker = new TreeWalker(node, node.parentNode);
          elements = elements || (self.schema ? self.schema.getNonEmptyElements() : null);
          whitespace = self.schema ? self.schema.getWhiteSpaceElements() : {};

          do {
            type = node.nodeType;

            if (type === 1) {
              // Ignore bogus elements
              var bogusVal = node.getAttribute('data-mce-bogus');
              if (bogusVal) {
                node = walker.next(bogusVal === 'all');
                continue;
              }

              // Keep empty elements like <img />
              name = node.nodeName.toLowerCase();
              if (elements && elements[name]) {
                // Ignore single BR elements in blocks like <p><br /></p> or <p><span><br /></span></p>
                if (name === 'br') {
                  brCount++;
                  node = walker.next();
                  continue;
                }

                return false;
              }

              // Keep elements with data-bookmark attributes or name attribute like <a name="1"></a>
              attributes = self.getAttribs(node);
              i = attributes.length;
              while (i--) {
                name = attributes[i].nodeName;
                if (name === "name" || name === 'data-mce-bookmark') {
                  return false;
                }
              }
            }

            // Keep comment nodes
            if (type == 8) {
              return false;
            }

            // Keep non whitespace text nodes
            if (type === 3 && !whiteSpaceRegExp.test(node.nodeValue)) {
              return false;
            }

            // Keep whitespace preserve elements
            if (type === 3 && node.parentNode && whitespace[node.parentNode.nodeName] && whiteSpaceRegExp.test(node.nodeValue)) {
              return false;
            }

            node = walker.next();
          } while (node);
        }

        return brCount <= 1;
      },

      /**
       * Creates a new DOM Range object. This will use the native DOM Range API if it's
       * available. If it's not, it will fall back to the custom TinyMCE implementation.
       *
       * @method createRng
       * @return {DOMRange} DOM Range object.
       * @example
       * var rng = tinymce.DOM.createRng();
       * alert(rng.startContainer + "," + rng.startOffset);
       */
      createRng: function () {
        var doc = this.doc;

        return doc.createRange ? doc.createRange() : new Range(this);
      },

      /**
       * Returns the index of the specified node within its parent.
       *
       * @method nodeIndex
       * @param {Node} node Node to look for.
       * @param {boolean} normalized Optional true/false state if the index is what it would be after a normalization.
       * @return {Number} Index of the specified node.
       */
      nodeIndex: nodeIndex,

      /**
       * Splits an element into two new elements and places the specified split
       * element or elements between the new ones. For example splitting the paragraph at the bold element in
       * this example <p>abc<b>abc</b>123</p> would produce <p>abc</p><b>abc</b><p>123</p>.
       *
       * @method split
       * @param {Element} parentElm Parent element to split.
       * @param {Element} splitElm Element to split at.
       * @param {Element} replacementElm Optional replacement element to replace the split element with.
       * @return {Element} Returns the split element or the replacement element if that is specified.
       */
      split: function (parentElm, splitElm, replacementElm) {
        var self = this, r = self.createRng(), bef, aft, pa;

        // W3C valid browsers tend to leave empty nodes to the left/right side of the contents - this makes sense
        // but we don't want that in our code since it serves no purpose for the end user
        // For example splitting this html at the bold element:
        //   <p>text 1<span><b>CHOP</b></span>text 2</p>
        // would produce:
        //   <p>text 1<span></span></p><b>CHOP</b><p><span></span>text 2</p>
        // this function will then trim off empty edges and produce:
        //   <p>text 1</p><b>CHOP</b><p>text 2</p>
        function trimNode(node) {
          var i, children = node.childNodes, type = node.nodeType;

          function surroundedBySpans(node) {
            var previousIsSpan = node.previousSibling && node.previousSibling.nodeName == 'SPAN';
            var nextIsSpan = node.nextSibling && node.nextSibling.nodeName == 'SPAN';
            return previousIsSpan && nextIsSpan;
          }

          if (type == 1 && node.getAttribute('data-mce-type') == 'bookmark') {
            return;
          }

          for (i = children.length - 1; i >= 0; i--) {
            trimNode(children[i]);
          }

          if (type != 9) {
            // Keep non whitespace text nodes
            if (type == 3 && node.nodeValue.length > 0) {
              // If parent element isn't a block or there isn't any useful contents for example "<p>   </p>"
              // Also keep text nodes with only spaces if surrounded by spans.
              // eg. "<p><span>a</span> <span>b</span></p>" should keep space between a and b
              var trimmedLength = trim(node.nodeValue).length;
              if (!self.isBlock(node.parentNode) || trimmedLength > 0 || trimmedLength === 0 && surroundedBySpans(node)) {
                return;
              }
            } else if (type == 1) {
              // If the only child is a bookmark then move it up
              children = node.childNodes;

              // TODO fix this complex if
              if (children.length == 1 && children[0] && children[0].nodeType == 1 &&
                children[0].getAttribute('data-mce-type') == 'bookmark') {
                node.parentNode.insertBefore(children[0], node);
              }

              // Keep non empty elements or img, hr etc
              if (children.length || /^(br|hr|input|img)$/i.test(node.nodeName)) {
                return;
              }
            }

            self.remove(node);
          }

          return node;
        }

        if (parentElm && splitElm) {
          // Get before chunk
          r.setStart(parentElm.parentNode, self.nodeIndex(parentElm));
          r.setEnd(splitElm.parentNode, self.nodeIndex(splitElm));
          bef = r.extractContents();

          // Get after chunk
          r = self.createRng();
          r.setStart(splitElm.parentNode, self.nodeIndex(splitElm) + 1);
          r.setEnd(parentElm.parentNode, self.nodeIndex(parentElm) + 1);
          aft = r.extractContents();

          // Insert before chunk
          pa = parentElm.parentNode;
          pa.insertBefore(trimNode(bef), parentElm);

          // Insert middle chunk
          if (replacementElm) {
            pa.insertBefore(replacementElm, parentElm);
            //pa.replaceChild(replacementElm, splitElm);
          } else {
            pa.insertBefore(splitElm, parentElm);
          }

          // Insert after chunk
          pa.insertBefore(trimNode(aft), parentElm);
          self.remove(parentElm);

          return replacementElm || splitElm;
        }
      },

      /**
       * Adds an event handler to the specified object.
       *
       * @method bind
       * @param {Element/Document/Window/Array} target Target element to bind events to.
       * handler to or an array of elements/ids/documents.
       * @param {String} name Name of event handler to add, for example: click.
       * @param {function} func Function to execute when the event occurs.
       * @param {Object} scope Optional scope to execute the function in.
       * @return {function} Function callback handler the same as the one passed in.
       */
      bind: function (target, name, func, scope) {
        var self = this;

        if (Tools.isArray(target)) {
          var i = target.length;

          while (i--) {
            target[i] = self.bind(target[i], name, func, scope);
          }

          return target;
        }

        // Collect all window/document events bound by editor instance
        if (self.settings.collect && (target === self.doc || target === self.win)) {
          self.boundEvents.push([target, name, func, scope]);
        }

        return self.events.bind(target, name, func, scope || self);
      },

      /**
       * Removes the specified event handler by name and function from an element or collection of elements.
       *
       * @method unbind
       * @param {Element/Document/Window/Array} target Target element to unbind events on.
       * @param {String} name Event handler name, for example: "click"
       * @param {function} func Function to remove.
       * @return {bool/Array} Bool state of true if the handler was removed, or an array of states if multiple input elements
       * were passed in.
       */
      unbind: function (target, name, func) {
        var self = this, i;

        if (Tools.isArray(target)) {
          i = target.length;

          while (i--) {
            target[i] = self.unbind(target[i], name, func);
          }

          return target;
        }

        // Remove any bound events matching the input
        if (self.boundEvents && (target === self.doc || target === self.win)) {
          i = self.boundEvents.length;

          while (i--) {
            var item = self.boundEvents[i];

            if (target == item[0] && (!name || name == item[1]) && (!func || func == item[2])) {
              this.events.unbind(item[0], item[1], item[2]);
            }
          }
        }

        return this.events.unbind(target, name, func);
      },

      /**
       * Fires the specified event name with object on target.
       *
       * @method fire
       * @param {Node/Document/Window} target Target element or object to fire event on.
       * @param {String} name Name of the event to fire.
       * @param {Object} evt Event object to send.
       * @return {Event} Event object.
       */
      fire: function (target, name, evt) {
        return this.events.fire(target, name, evt);
      },

      // Returns the content editable state of a node
      getContentEditable: function (node) {
        var contentEditable;

        // Check type
        if (!node || node.nodeType != 1) {
          return null;
        }

        // Check for fake content editable
        contentEditable = node.getAttribute("data-mce-contenteditable");
        if (contentEditable && contentEditable !== "inherit") {
          return contentEditable;
        }

        // Check for real content editable
        return node.contentEditable !== "inherit" ? node.contentEditable : null;
      },

      getContentEditableParent: function (node) {
        var root = this.getRoot(), state = null;

        for (; node && node !== root; node = node.parentNode) {
          state = this.getContentEditable(node);

          if (state !== null) {
            break;
          }
        }

        return state;
      },

      /**
       * Destroys all internal references to the DOM to solve IE leak issues.
       *
       * @method destroy
       */
      destroy: function () {
        var self = this;

        // Unbind all events bound to window/document by editor instance
        if (self.boundEvents) {
          var i = self.boundEvents.length;

          while (i--) {
            var item = self.boundEvents[i];
            this.events.unbind(item[0], item[1], item[2]);
          }

          self.boundEvents = null;
        }

        // Restore sizzle document to window.document
        // Since the current document might be removed producing "Permission denied" on IE see #6325
        if (Sizzle.setDocument) {
          Sizzle.setDocument();
        }

        self.win = self.doc = self.root = self.events = self.frag = null;
      },

      isChildOf: function (node, parent) {
        while (node) {
          if (parent === node) {
            return true;
          }

          node = node.parentNode;
        }

        return false;
      },

      // #ifdef debug

      dumpRng: function (r) {
        return (
          'startContainer: ' + r.startContainer.nodeName +
          ', startOffset: ' + r.startOffset +
          ', endContainer: ' + r.endContainer.nodeName +
          ', endOffset: ' + r.endOffset
        );
      },

      // #endif

      _findSib: function (node, selector, name) {
        var self = this, func = selector;

        if (node) {
          // If expression make a function of it using is
          if (typeof func == 'string') {
            func = function (node) {
              return self.is(node, selector);
            };
          }

          // Loop all siblings
          for (node = node[name]; node; node = node[name]) {
            if (func(node)) {
              return node;
            }
          }
        }

        return null;
      }
    };

    /**
     * Instance of DOMUtils for the current document.
     *
     * @static
     * @property DOM
     * @type tinymce.dom.DOMUtils
     * @example
     * // Example of how to add a class to some element by id
     * tinymce.DOM.addClass('someid', 'someclass');
     */
    DOMUtils.DOM = new DOMUtils(document);
    DOMUtils.nodeIndex = nodeIndex;

    return DOMUtils;
  }
);

/**
 * ScriptLoader.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*globals console*/

/**
 * This class handles asynchronous/synchronous loading of JavaScript files it will execute callbacks
 * when various items gets loaded. This class is useful to load external JavaScript files.
 *
 * @class tinymce.dom.ScriptLoader
 * @example
 * // Load a script from a specific URL using the global script loader
 * tinymce.ScriptLoader.load('somescript.js');
 *
 * // Load a script using a unique instance of the script loader
 * var scriptLoader = new tinymce.dom.ScriptLoader();
 *
 * scriptLoader.load('somescript.js');
 *
 * // Load multiple scripts
 * var scriptLoader = new tinymce.dom.ScriptLoader();
 *
 * scriptLoader.add('somescript1.js');
 * scriptLoader.add('somescript2.js');
 * scriptLoader.add('somescript3.js');
 *
 * scriptLoader.loadQueue(function() {
 *    alert('All scripts are now loaded.');
 * });
 */
define(
  'tinymce.core.dom.ScriptLoader',
  [
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.util.Tools"
  ],
  function (DOMUtils, Tools) {
    var DOM = DOMUtils.DOM;
    var each = Tools.each, grep = Tools.grep;

    var isFunction = function (f) {
      return typeof f === 'function';
    };

    function ScriptLoader() {
      var QUEUED = 0,
        LOADING = 1,
        LOADED = 2,
        FAILED = 3,
        states = {},
        queue = [],
        scriptLoadedCallbacks = {},
        queueLoadedCallbacks = [],
        loading = 0,
        undef;

      /**
       * Loads a specific script directly without adding it to the load queue.
       *
       * @method load
       * @param {String} url Absolute URL to script to add.
       * @param {function} callback Optional success callback function when the script loaded successfully.
       * @param {function} callback Optional failure callback function when the script failed to load.
       */
      function loadScript(url, success, failure) {
        var dom = DOM, elm, id;

        // Execute callback when script is loaded
        function done() {
          dom.remove(id);

          if (elm) {
            elm.onreadystatechange = elm.onload = elm = null;
          }

          success();
        }

        function error() {
          /*eslint no-console:0 */

          // We can't mark it as done if there is a load error since
          // A) We don't want to produce 404 errors on the server and
          // B) the onerror event won't fire on all browsers.
          // done();

          if (isFunction(failure)) {
            failure();
          } else {
            // Report the error so it's easier for people to spot loading errors
            if (typeof console !== "undefined" && console.log) {
              console.log("Failed to load script: " + url);
            }
          }
        }

        id = dom.uniqueId();

        // Create new script element
        elm = document.createElement('script');
        elm.id = id;
        elm.type = 'text/javascript';
        elm.src = Tools._addCacheSuffix(url);

        // Seems that onreadystatechange works better on IE 10 onload seems to fire incorrectly
        if ("onreadystatechange" in elm) {
          elm.onreadystatechange = function () {
            if (/loaded|complete/.test(elm.readyState)) {
              done();
            }
          };
        } else {
          elm.onload = done;
        }

        // Add onerror event will get fired on some browsers but not all of them
        elm.onerror = error;

        // Add script to document
        (document.getElementsByTagName('head')[0] || document.body).appendChild(elm);
      }

      /**
       * Returns true/false if a script has been loaded or not.
       *
       * @method isDone
       * @param {String} url URL to check for.
       * @return {Boolean} true/false if the URL is loaded.
       */
      this.isDone = function (url) {
        return states[url] == LOADED;
      };

      /**
       * Marks a specific script to be loaded. This can be useful if a script got loaded outside
       * the script loader or to skip it from loading some script.
       *
       * @method markDone
       * @param {string} url Absolute URL to the script to mark as loaded.
       */
      this.markDone = function (url) {
        states[url] = LOADED;
      };

      /**
       * Adds a specific script to the load queue of the script loader.
       *
       * @method add
       * @param {String} url Absolute URL to script to add.
       * @param {function} success Optional success callback function to execute when the script loades successfully.
       * @param {Object} scope Optional scope to execute callback in.
       * @param {function} failure Optional failure callback function to execute when the script failed to load.
       */
      this.add = this.load = function (url, success, scope, failure) {
        var state = states[url];

        // Add url to load queue
        if (state == undef) {
          queue.push(url);
          states[url] = QUEUED;
        }

        if (success) {
          // Store away callback for later execution
          if (!scriptLoadedCallbacks[url]) {
            scriptLoadedCallbacks[url] = [];
          }

          scriptLoadedCallbacks[url].push({
            success: success,
            failure: failure,
            scope: scope || this
          });
        }
      };

      this.remove = function (url) {
        delete states[url];
        delete scriptLoadedCallbacks[url];
      };

      /**
       * Starts the loading of the queue.
       *
       * @method loadQueue
       * @param {function} success Optional callback to execute when all queued items are loaded.
       * @param {function} failure Optional callback to execute when queued items failed to load.
       * @param {Object} scope Optional scope to execute the callback in.
       */
      this.loadQueue = function (success, scope, failure) {
        this.loadScripts(queue, success, scope, failure);
      };

      /**
       * Loads the specified queue of files and executes the callback ones they are loaded.
       * This method is generally not used outside this class but it might be useful in some scenarios.
       *
       * @method loadScripts
       * @param {Array} scripts Array of queue items to load.
       * @param {function} callback Optional callback to execute when scripts is loaded successfully.
       * @param {Object} scope Optional scope to execute callback in.
       * @param {function} callback Optional callback to execute if scripts failed to load.
       */
      this.loadScripts = function (scripts, success, scope, failure) {
        var loadScripts, failures = [];

        function execCallbacks(name, url) {
          // Execute URL callback functions
          each(scriptLoadedCallbacks[url], function (callback) {
            if (isFunction(callback[name])) {
              callback[name].call(callback.scope);
            }
          });

          scriptLoadedCallbacks[url] = undef;
        }

        queueLoadedCallbacks.push({
          success: success,
          failure: failure,
          scope: scope || this
        });

        loadScripts = function () {
          var loadingScripts = grep(scripts);

          // Current scripts has been handled
          scripts.length = 0;

          // Load scripts that needs to be loaded
          each(loadingScripts, function (url) {
            // Script is already loaded then execute script callbacks directly
            if (states[url] === LOADED) {
              execCallbacks('success', url);
              return;
            }

            if (states[url] === FAILED) {
              execCallbacks('failure', url);
              return;
            }

            // Is script not loading then start loading it
            if (states[url] !== LOADING) {
              states[url] = LOADING;
              loading++;

              loadScript(url, function () {
                states[url] = LOADED;
                loading--;

                execCallbacks('success', url);

                // Load more scripts if they where added by the recently loaded script
                loadScripts();
              }, function () {
                states[url] = FAILED;
                loading--;

                failures.push(url);
                execCallbacks('failure', url);

                // Load more scripts if they where added by the recently loaded script
                loadScripts();
              });
            }
          });

          // No scripts are currently loading then execute all pending queue loaded callbacks
          if (!loading) {
            each(queueLoadedCallbacks, function (callback) {
              if (failures.length === 0) {
                if (isFunction(callback.success)) {
                  callback.success.call(callback.scope);
                }
              } else {
                if (isFunction(callback.failure)) {
                  callback.failure.call(callback.scope, failures);
                }
              }
            });

            queueLoadedCallbacks.length = 0;
          }
        };

        loadScripts();
      };
    }

    ScriptLoader.ScriptLoader = new ScriptLoader();

    return ScriptLoader;
  }
);

/**
 * AddOnManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles the loading of themes/plugins or other add-ons and their language packs.
 *
 * @class tinymce.AddOnManager
 */
define(
  'tinymce.core.AddOnManager',
  [
    "tinymce.core.dom.ScriptLoader",
    "tinymce.core.util.Tools"
  ],
  function (ScriptLoader, Tools) {
    var each = Tools.each;

    function AddOnManager() {
      var self = this;

      self.items = [];
      self.urls = {};
      self.lookup = {};
    }

    AddOnManager.prototype = {
      /**
       * Returns the specified add on by the short name.
       *
       * @method get
       * @param {String} name Add-on to look for.
       * @return {tinymce.Theme/tinymce.Plugin} Theme or plugin add-on instance or undefined.
       */
      get: function (name) {
        if (this.lookup[name]) {
          return this.lookup[name].instance;
        }

        return undefined;
      },

      dependencies: function (name) {
        var result;

        if (this.lookup[name]) {
          result = this.lookup[name].dependencies;
        }

        return result || [];
      },

      /**
       * Loads a language pack for the specified add-on.
       *
       * @method requireLangPack
       * @param {String} name Short name of the add-on.
       * @param {String} languages Optional comma or space separated list of languages to check if it matches the name.
       */
      requireLangPack: function (name, languages) {
        var language = AddOnManager.language;

        if (language && AddOnManager.languageLoad !== false) {
          if (languages) {
            languages = ',' + languages + ',';

            // Load short form sv.js or long form sv_SE.js
            if (languages.indexOf(',' + language.substr(0, 2) + ',') != -1) {
              language = language.substr(0, 2);
            } else if (languages.indexOf(',' + language + ',') == -1) {
              return;
            }
          }

          ScriptLoader.ScriptLoader.add(this.urls[name] + '/langs/' + language + '.js');
        }
      },

      /**
       * Adds a instance of the add-on by it's short name.
       *
       * @method add
       * @param {String} id Short name/id for the add-on.
       * @param {tinymce.Theme/tinymce.Plugin} addOn Theme or plugin to add.
       * @return {tinymce.Theme/tinymce.Plugin} The same theme or plugin instance that got passed in.
       * @example
       * // Create a simple plugin
       * tinymce.create('tinymce.plugins.TestPlugin', {
       *   TestPlugin: function(ed, url) {
       *   ed.on('click', function(e) {
       *      ed.windowManager.alert('Hello World!');
       *   });
       *   }
       * });
       *
       * // Register plugin using the add method
       * tinymce.PluginManager.add('test', tinymce.plugins.TestPlugin);
       *
       * // Initialize TinyMCE
       * tinymce.init({
       *  ...
       *  plugins: '-test' // Init the plugin but don't try to load it
       * });
       */
      add: function (id, addOn, dependencies) {
        this.items.push(addOn);
        this.lookup[id] = { instance: addOn, dependencies: dependencies };

        return addOn;
      },

      remove: function (name) {
        delete this.urls[name];
        delete this.lookup[name];
      },

      createUrl: function (baseUrl, dep) {
        if (typeof dep === "object") {
          return dep;
        }

        return { prefix: baseUrl.prefix, resource: dep, suffix: baseUrl.suffix };
      },

      /**
       * Add a set of components that will make up the add-on. Using the url of the add-on name as the base url.
       * This should be used in development mode.  A new compressor/javascript munger process will ensure that the
       * components are put together into the plugin.js file and compressed correctly.
       *
       * @method addComponents
       * @param {String} pluginName name of the plugin to load scripts from (will be used to get the base url for the plugins).
       * @param {Array} scripts Array containing the names of the scripts to load.
       */
      addComponents: function (pluginName, scripts) {
        var pluginUrl = this.urls[pluginName];

        each(scripts, function (script) {
          ScriptLoader.ScriptLoader.add(pluginUrl + "/" + script);
        });
      },

      /**
       * Loads an add-on from a specific url.
       *
       * @method load
       * @param {String} name Short name of the add-on that gets loaded.
       * @param {String} addOnUrl URL to the add-on that will get loaded.
       * @param {function} success Optional success callback to execute when an add-on is loaded.
       * @param {Object} scope Optional scope to execute the callback in.
       * @param {function} failure Optional failure callback to execute when an add-on failed to load.
       * @example
       * // Loads a plugin from an external URL
       * tinymce.PluginManager.load('myplugin', '/some/dir/someplugin/plugin.js');
       *
       * // Initialize TinyMCE
       * tinymce.init({
       *  ...
       *  plugins: '-myplugin' // Don't try to load it again
       * });
       */
      load: function (name, addOnUrl, success, scope, failure) {
        var self = this, url = addOnUrl;

        function loadDependencies() {
          var dependencies = self.dependencies(name);

          each(dependencies, function (dep) {
            var newUrl = self.createUrl(addOnUrl, dep);

            self.load(newUrl.resource, newUrl, undefined, undefined);
          });

          if (success) {
            if (scope) {
              success.call(scope);
            } else {
              success.call(ScriptLoader);
            }
          }
        }

        if (self.urls[name]) {
          return;
        }

        if (typeof addOnUrl === "object") {
          url = addOnUrl.prefix + addOnUrl.resource + addOnUrl.suffix;
        }

        if (url.indexOf('/') !== 0 && url.indexOf('://') == -1) {
          url = AddOnManager.baseURL + '/' + url;
        }

        self.urls[name] = url.substring(0, url.lastIndexOf('/'));

        if (self.lookup[name]) {
          loadDependencies();
        } else {
          ScriptLoader.ScriptLoader.add(url, loadDependencies, scope, failure);
        }
      }
    };

    AddOnManager.PluginManager = new AddOnManager();
    AddOnManager.ThemeManager = new AddOnManager();

    return AddOnManager;
  }
);

/**
 * TinyMCE theme class.
 *
 * @class tinymce.Theme
 */

/**
 * This method is responsible for rendering/generating the overall user interface with toolbars, buttons, iframe containers etc.
 *
 * @method renderUI
 * @param {Object} obj Object parameter containing the targetNode DOM node that will be replaced visually with an editor instance.
 * @return {Object} an object with items like iframeContainer, editorContainer, sizeContainer, deltaWidth, deltaHeight.
 */

/**
 * Plugin base class, this is a pseudo class that describes how a plugin is to be created for TinyMCE. The methods below are all optional.
 *
 * @class tinymce.Plugin
 * @example
 * tinymce.PluginManager.add('example', function(editor, url) {
 *     // Add a button that opens a window
 *     editor.addButton('example', {
 *         text: 'My button',
 *         icon: false,
 *         onclick: function() {
 *             // Open window
 *             editor.windowManager.open({
 *                 title: 'Example plugin',
 *                 body: [
 *                     {type: 'textbox', name: 'title', label: 'Title'}
 *                 ],
 *                 onsubmit: function(e) {
 *                     // Insert content when the window form is submitted
 *                     editor.insertContent('Title: ' + e.data.title);
 *                 }
 *             });
 *         }
 *     });
 *
 *     // Adds a menu item to the tools menu
 *     editor.addMenuItem('example', {
 *         text: 'Example plugin',
 *         context: 'tools',
 *         onclick: function() {
 *             // Open window with a specific url
 *             editor.windowManager.open({
 *                 title: 'TinyMCE site',
 *                 url: 'http://www.tinymce.com',
 *                 width: 800,
 *                 height: 600,
 *                 buttons: [{
 *                     text: 'Close',
 *                     onclick: 'close'
 *                 }]
 *             });
 *         }
 *     });
 * });
 */

/**
 * NodeType.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Contains various node validation functions.
 *
 * @private
 * @class tinymce.dom.NodeType
 */
define(
  'tinymce.core.dom.NodeType',
  [
  ],
  function () {
    function isNodeType(type) {
      return function (node) {
        return !!node && node.nodeType == type;
      };
    }

    var isElement = isNodeType(1);

    function matchNodeNames(names) {
      names = names.toLowerCase().split(' ');

      return function (node) {
        var i, name;

        if (node && node.nodeType) {
          name = node.nodeName.toLowerCase();

          for (i = 0; i < names.length; i++) {
            if (name === names[i]) {
              return true;
            }
          }
        }

        return false;
      };
    }

    function matchStyleValues(name, values) {
      values = values.toLowerCase().split(' ');

      return function (node) {
        var i, cssValue;

        if (isElement(node)) {
          for (i = 0; i < values.length; i++) {
            cssValue = node.ownerDocument.defaultView.getComputedStyle(node, null).getPropertyValue(name);
            if (cssValue === values[i]) {
              return true;
            }
          }
        }

        return false;
      };
    }

    function hasPropValue(propName, propValue) {
      return function (node) {
        return isElement(node) && node[propName] === propValue;
      };
    }

    function hasAttribute(attrName, attrValue) {
      return function (node) {
        return isElement(node) && node.hasAttribute(attrName);
      };
    }

    function hasAttributeValue(attrName, attrValue) {
      return function (node) {
        return isElement(node) && node.getAttribute(attrName) === attrValue;
      };
    }

    function isBogus(node) {
      return isElement(node) && node.hasAttribute('data-mce-bogus');
    }

    function hasContentEditableState(value) {
      return function (node) {
        if (isElement(node)) {
          if (node.contentEditable === value) {
            return true;
          }

          if (node.getAttribute('data-mce-contenteditable') === value) {
            return true;
          }
        }

        return false;
      };
    }

    return {
      isText: isNodeType(3),
      isElement: isElement,
      isComment: isNodeType(8),
      isBr: matchNodeNames('br'),
      isContentEditableTrue: hasContentEditableState('true'),
      isContentEditableFalse: hasContentEditableState('false'),
      matchNodeNames: matchNodeNames,
      hasPropValue: hasPropValue,
      hasAttribute: hasAttribute,
      hasAttributeValue: hasAttributeValue,
      matchStyleValues: matchStyleValues,
      isBogus: isBogus
    };
  }
);
/**
 * Zwsp.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility functions for working with zero width space
 * characters used as character containers etc.
 *
 * @private
 * @class tinymce.text.Zwsp
 * @example
 * var isZwsp = Zwsp.isZwsp('\uFEFF');
 * var abc = Zwsp.trim('a\uFEFFc');
 */
define(
  'tinymce.core.text.Zwsp',
  [
  ],
  function () {
    // This is technically not a ZWSP but a ZWNBSP or a BYTE ORDER MARK it used to be a ZWSP
    var ZWSP = '\uFEFF';

    var isZwsp = function (chr) {
      return chr === ZWSP;
    };

    var trim = function (text) {
      return text.replace(new RegExp(ZWSP, 'g'), '');
    };

    return {
      isZwsp: isZwsp,
      ZWSP: ZWSP,
      trim: trim
    };
  }
);
/**
 * CaretContainer.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module handles caret containers. A caret container is a node that
 * holds the caret for positional purposes.
 *
 * @private
 * @class tinymce.caret.CaretContainer
 */
define(
  'tinymce.core.caret.CaretContainer',
  [
    "tinymce.core.dom.NodeType",
    "tinymce.core.text.Zwsp"
  ],
  function (NodeType, Zwsp) {
    var isElement = NodeType.isElement,
      isText = NodeType.isText;

    function isCaretContainerBlock(node) {
      if (isText(node)) {
        node = node.parentNode;
      }

      return isElement(node) && node.hasAttribute('data-mce-caret');
    }

    function isCaretContainerInline(node) {
      return isText(node) && Zwsp.isZwsp(node.data);
    }

    function isCaretContainer(node) {
      return isCaretContainerBlock(node) || isCaretContainerInline(node);
    }

    var hasContent = function (node) {
      return node.firstChild !== node.lastChild || !NodeType.isBr(node.firstChild);
    };

    function insertInline(node, before) {
      var doc, sibling, textNode, parentNode;

      doc = node.ownerDocument;
      textNode = doc.createTextNode(Zwsp.ZWSP);
      parentNode = node.parentNode;

      if (!before) {
        sibling = node.nextSibling;
        if (isText(sibling)) {
          if (isCaretContainer(sibling)) {
            return sibling;
          }

          if (startsWithCaretContainer(sibling)) {
            sibling.splitText(1);
            return sibling;
          }
        }

        if (node.nextSibling) {
          parentNode.insertBefore(textNode, node.nextSibling);
        } else {
          parentNode.appendChild(textNode);
        }
      } else {
        sibling = node.previousSibling;
        if (isText(sibling)) {
          if (isCaretContainer(sibling)) {
            return sibling;
          }

          if (endsWithCaretContainer(sibling)) {
            return sibling.splitText(sibling.data.length - 1);
          }
        }

        parentNode.insertBefore(textNode, node);
      }

      return textNode;
    }

    var prependInline = function (node) {
      if (NodeType.isText(node)) {
        var data = node.data;
        if (data.length > 0 && data.charAt(0) !== Zwsp.ZWSP) {
          node.insertData(0, Zwsp.ZWSP);
        }
        return node;
      } else {
        return null;
      }
    };

    var appendInline = function (node) {
      if (NodeType.isText(node)) {
        var data = node.data;
        if (data.length > 0 && data.charAt(data.length - 1) !== Zwsp.ZWSP) {
          node.insertData(data.length, Zwsp.ZWSP);
        }
        return node;
      } else {
        return null;
      }
    };

    var isBeforeInline = function (pos) {
      return pos && NodeType.isText(pos.container()) && pos.container().data.charAt(pos.offset()) === Zwsp.ZWSP;
    };

    var isAfterInline = function (pos) {
      return pos && NodeType.isText(pos.container()) && pos.container().data.charAt(pos.offset() - 1) === Zwsp.ZWSP;
    };

    function createBogusBr() {
      var br = document.createElement('br');
      br.setAttribute('data-mce-bogus', '1');
      return br;
    }

    function insertBlock(blockName, node, before) {
      var doc, blockNode, parentNode;

      doc = node.ownerDocument;
      blockNode = doc.createElement(blockName);
      blockNode.setAttribute('data-mce-caret', before ? 'before' : 'after');
      blockNode.setAttribute('data-mce-bogus', 'all');
      blockNode.appendChild(createBogusBr());
      parentNode = node.parentNode;

      if (!before) {
        if (node.nextSibling) {
          parentNode.insertBefore(blockNode, node.nextSibling);
        } else {
          parentNode.appendChild(blockNode);
        }
      } else {
        parentNode.insertBefore(blockNode, node);
      }

      return blockNode;
    }

    function startsWithCaretContainer(node) {
      return isText(node) && node.data[0] == Zwsp.ZWSP;
    }

    function endsWithCaretContainer(node) {
      return isText(node) && node.data[node.data.length - 1] == Zwsp.ZWSP;
    }

    function trimBogusBr(elm) {
      var brs = elm.getElementsByTagName('br');
      var lastBr = brs[brs.length - 1];
      if (NodeType.isBogus(lastBr)) {
        lastBr.parentNode.removeChild(lastBr);
      }
    }

    function showCaretContainerBlock(caretContainer) {
      if (caretContainer && caretContainer.hasAttribute('data-mce-caret')) {
        trimBogusBr(caretContainer);
        caretContainer.removeAttribute('data-mce-caret');
        caretContainer.removeAttribute('data-mce-bogus');
        caretContainer.removeAttribute('style');
        caretContainer.removeAttribute('_moz_abspos');
        return caretContainer;
      }

      return null;
    }

    return {
      isCaretContainer: isCaretContainer,
      isCaretContainerBlock: isCaretContainerBlock,
      isCaretContainerInline: isCaretContainerInline,
      showCaretContainerBlock: showCaretContainerBlock,
      insertInline: insertInline,
      prependInline: prependInline,
      appendInline: appendInline,
      isBeforeInline: isBeforeInline,
      isAfterInline: isAfterInline,
      insertBlock: insertBlock,
      hasContent: hasContent,
      startsWithCaretContainer: startsWithCaretContainer,
      endsWithCaretContainer: endsWithCaretContainer
    };
  }
);
/**
 * RangeUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class contains a few utility methods for ranges.
 *
 * @class tinymce.dom.RangeUtils
 */
define(
  'tinymce.core.dom.RangeUtils',
  [
    "tinymce.core.util.Tools",
    "tinymce.core.dom.TreeWalker",
    "tinymce.core.dom.NodeType",
    "tinymce.core.dom.Range",
    "tinymce.core.caret.CaretContainer"
  ],
  function (Tools, TreeWalker, NodeType, Range, CaretContainer) {
    var each = Tools.each,
      isContentEditableTrue = NodeType.isContentEditableTrue,
      isContentEditableFalse = NodeType.isContentEditableFalse,
      isCaretContainer = CaretContainer.isCaretContainer;

    function hasCeProperty(node) {
      return isContentEditableTrue(node) || isContentEditableFalse(node);
    }

    function getEndChild(container, index) {
      var childNodes = container.childNodes;

      index--;

      if (index > childNodes.length - 1) {
        index = childNodes.length - 1;
      } else if (index < 0) {
        index = 0;
      }

      return childNodes[index] || container;
    }

    function findParent(node, rootNode, predicate) {
      while (node && node !== rootNode) {
        if (predicate(node)) {
          return node;
        }

        node = node.parentNode;
      }

      return null;
    }

    function hasParent(node, rootNode, predicate) {
      return findParent(node, rootNode, predicate) !== null;
    }

    function hasParentWithName(node, rootNode, name) {
      return hasParent(node, rootNode, function (node) {
        return node.nodeName === name;
      });
    }

    function isFormatterCaret(node) {
      return node.id === '_mce_caret';
    }

    function isCeFalseCaretContainer(node, rootNode) {
      return isCaretContainer(node) && hasParent(node, rootNode, isFormatterCaret) === false;
    }

    function RangeUtils(dom) {
      /**
       * Walks the specified range like object and executes the callback for each sibling collection it finds.
       *
       * @private
       * @method walk
       * @param {Object} rng Range like object.
       * @param {function} callback Callback function to execute for each sibling collection.
       */
      this.walk = function (rng, callback) {
        var startContainer = rng.startContainer,
          startOffset = rng.startOffset,
          endContainer = rng.endContainer,
          endOffset = rng.endOffset,
          ancestor, startPoint,
          endPoint, node, parent, siblings, nodes;

        // Handle table cell selection the table plugin enables
        // you to fake select table cells and perform formatting actions on them
        nodes = dom.select('td[data-mce-selected],th[data-mce-selected]');
        if (nodes.length > 0) {
          each(nodes, function (node) {
            callback([node]);
          });

          return;
        }

        /**
         * Excludes start/end text node if they are out side the range
         *
         * @private
         * @param {Array} nodes Nodes to exclude items from.
         * @return {Array} Array with nodes excluding the start/end container if needed.
         */
        function exclude(nodes) {
          var node;

          // First node is excluded
          node = nodes[0];
          if (node.nodeType === 3 && node === startContainer && startOffset >= node.nodeValue.length) {
            nodes.splice(0, 1);
          }

          // Last node is excluded
          node = nodes[nodes.length - 1];
          if (endOffset === 0 && nodes.length > 0 && node === endContainer && node.nodeType === 3) {
            nodes.splice(nodes.length - 1, 1);
          }

          return nodes;
        }

        /**
         * Collects siblings
         *
         * @private
         * @param {Node} node Node to collect siblings from.
         * @param {String} name Name of the sibling to check for.
         * @param {Node} endNode
         * @return {Array} Array of collected siblings.
         */
        function collectSiblings(node, name, endNode) {
          var siblings = [];

          for (; node && node != endNode; node = node[name]) {
            siblings.push(node);
          }

          return siblings;
        }

        /**
         * Find an end point this is the node just before the common ancestor root.
         *
         * @private
         * @param {Node} node Node to start at.
         * @param {Node} root Root/ancestor element to stop just before.
         * @return {Node} Node just before the root element.
         */
        function findEndPoint(node, root) {
          do {
            if (node.parentNode == root) {
              return node;
            }

            node = node.parentNode;
          } while (node);
        }

        function walkBoundary(startNode, endNode, next) {
          var siblingName = next ? 'nextSibling' : 'previousSibling';

          for (node = startNode, parent = node.parentNode; node && node != endNode; node = parent) {
            parent = node.parentNode;
            siblings = collectSiblings(node == startNode ? node : node[siblingName], siblingName);

            if (siblings.length) {
              if (!next) {
                siblings.reverse();
              }

              callback(exclude(siblings));
            }
          }
        }

        // If index based start position then resolve it
        if (startContainer.nodeType == 1 && startContainer.hasChildNodes()) {
          startContainer = startContainer.childNodes[startOffset];
        }

        // If index based end position then resolve it
        if (endContainer.nodeType == 1 && endContainer.hasChildNodes()) {
          endContainer = getEndChild(endContainer, endOffset);
        }

        // Same container
        if (startContainer == endContainer) {
          return callback(exclude([startContainer]));
        }

        // Find common ancestor and end points
        ancestor = dom.findCommonAncestor(startContainer, endContainer);

        // Process left side
        for (node = startContainer; node; node = node.parentNode) {
          if (node === endContainer) {
            return walkBoundary(startContainer, ancestor, true);
          }

          if (node === ancestor) {
            break;
          }
        }

        // Process right side
        for (node = endContainer; node; node = node.parentNode) {
          if (node === startContainer) {
            return walkBoundary(endContainer, ancestor);
          }

          if (node === ancestor) {
            break;
          }
        }

        // Find start/end point
        startPoint = findEndPoint(startContainer, ancestor) || startContainer;
        endPoint = findEndPoint(endContainer, ancestor) || endContainer;

        // Walk left leaf
        walkBoundary(startContainer, startPoint, true);

        // Walk the middle from start to end point
        siblings = collectSiblings(
          startPoint == startContainer ? startPoint : startPoint.nextSibling,
          'nextSibling',
          endPoint == endContainer ? endPoint.nextSibling : endPoint
        );

        if (siblings.length) {
          callback(exclude(siblings));
        }

        // Walk right leaf
        walkBoundary(endContainer, endPoint);
      };

      /**
       * Splits the specified range at it's start/end points.
       *
       * @private
       * @param {Range/RangeObject} rng Range to split.
       * @return {Object} Range position object.
       */
      this.split = function (rng) {
        var startContainer = rng.startContainer,
          startOffset = rng.startOffset,
          endContainer = rng.endContainer,
          endOffset = rng.endOffset;

        function splitText(node, offset) {
          return node.splitText(offset);
        }

        // Handle single text node
        if (startContainer == endContainer && startContainer.nodeType == 3) {
          if (startOffset > 0 && startOffset < startContainer.nodeValue.length) {
            endContainer = splitText(startContainer, startOffset);
            startContainer = endContainer.previousSibling;

            if (endOffset > startOffset) {
              endOffset = endOffset - startOffset;
              startContainer = endContainer = splitText(endContainer, endOffset).previousSibling;
              endOffset = endContainer.nodeValue.length;
              startOffset = 0;
            } else {
              endOffset = 0;
            }
          }
        } else {
          // Split startContainer text node if needed
          if (startContainer.nodeType == 3 && startOffset > 0 && startOffset < startContainer.nodeValue.length) {
            startContainer = splitText(startContainer, startOffset);
            startOffset = 0;
          }

          // Split endContainer text node if needed
          if (endContainer.nodeType == 3 && endOffset > 0 && endOffset < endContainer.nodeValue.length) {
            endContainer = splitText(endContainer, endOffset).previousSibling;
            endOffset = endContainer.nodeValue.length;
          }
        }

        return {
          startContainer: startContainer,
          startOffset: startOffset,
          endContainer: endContainer,
          endOffset: endOffset
        };
      };

      /**
       * Normalizes the specified range by finding the closest best suitable caret location.
       *
       * @private
       * @param {Range} rng Range to normalize.
       * @return {Boolean} True/false if the specified range was normalized or not.
       */
      this.normalize = function (rng) {
        var normalized = false, collapsed;

        function normalizeEndPoint(start) {
          var container, offset, walker, body = dom.getRoot(), node, nonEmptyElementsMap;
          var directionLeft, isAfterNode;

          function isTableCell(node) {
            return node && /^(TD|TH|CAPTION)$/.test(node.nodeName);
          }

          function hasBrBeforeAfter(node, left) {
            var walker = new TreeWalker(node, dom.getParent(node.parentNode, dom.isBlock) || body);

            while ((node = walker[left ? 'prev' : 'next']())) {
              if (node.nodeName === "BR") {
                return true;
              }
            }
          }

          function hasContentEditableFalseParent(node) {
            while (node && node != body) {
              if (isContentEditableFalse(node)) {
                return true;
              }

              node = node.parentNode;
            }

            return false;
          }

          function isPrevNode(node, name) {
            return node.previousSibling && node.previousSibling.nodeName == name;
          }

          // Walks the dom left/right to find a suitable text node to move the endpoint into
          // It will only walk within the current parent block or body and will stop if it hits a block or a BR/IMG
          function findTextNodeRelative(left, startNode) {
            var walker, lastInlineElement, parentBlockContainer;

            startNode = startNode || container;
            parentBlockContainer = dom.getParent(startNode.parentNode, dom.isBlock) || body;

            // Lean left before the BR element if it's the only BR within a block element. Gecko bug: #6680
            // This: <p><br>|</p> becomes <p>|<br></p>
            if (left && startNode.nodeName == 'BR' && isAfterNode && dom.isEmpty(parentBlockContainer)) {
              container = startNode.parentNode;
              offset = dom.nodeIndex(startNode);
              normalized = true;
              return;
            }

            // Walk left until we hit a text node we can move to or a block/br/img
            walker = new TreeWalker(startNode, parentBlockContainer);
            while ((node = walker[left ? 'prev' : 'next']())) {
              // Break if we hit a non content editable node
              if (dom.getContentEditableParent(node) === "false" || isCeFalseCaretContainer(node, dom.getRoot())) {
                return;
              }

              // Found text node that has a length
              if (node.nodeType === 3 && node.nodeValue.length > 0) {
                if (hasParentWithName(node, body, 'A') === false) {
                  container = node;
                  offset = left ? node.nodeValue.length : 0;
                  normalized = true;
                }

                return;
              }

              // Break if we find a block or a BR/IMG/INPUT etc
              if (dom.isBlock(node) || nonEmptyElementsMap[node.nodeName.toLowerCase()]) {
                return;
              }

              lastInlineElement = node;
            }

            // Only fetch the last inline element when in caret mode for now
            if (collapsed && lastInlineElement) {
              container = lastInlineElement;
              normalized = true;
              offset = 0;
            }
          }

          container = rng[(start ? 'start' : 'end') + 'Container'];
          offset = rng[(start ? 'start' : 'end') + 'Offset'];
          isAfterNode = container.nodeType == 1 && offset === container.childNodes.length;
          nonEmptyElementsMap = dom.schema.getNonEmptyElements();
          directionLeft = start;

          if (isCaretContainer(container)) {
            return;
          }

          if (container.nodeType == 1 && offset > container.childNodes.length - 1) {
            directionLeft = false;
          }

          // If the container is a document move it to the body element
          if (container.nodeType === 9) {
            container = dom.getRoot();
            offset = 0;
          }

          // If the container is body try move it into the closest text node or position
          if (container === body) {
            // If start is before/after a image, table etc
            if (directionLeft) {
              node = container.childNodes[offset > 0 ? offset - 1 : 0];
              if (node) {
                if (isCaretContainer(node)) {
                  return;
                }

                if (nonEmptyElementsMap[node.nodeName] || node.nodeName == "TABLE") {
                  return;
                }
              }
            }

            // Resolve the index
            if (container.hasChildNodes()) {
              offset = Math.min(!directionLeft && offset > 0 ? offset - 1 : offset, container.childNodes.length - 1);
              container = container.childNodes[offset];
              offset = 0;

              // Don't normalize non collapsed selections like <p>[a</p><table></table>]
              if (!collapsed && container === body.lastChild && container.nodeName === 'TABLE') {
                return;
              }

              if (hasContentEditableFalseParent(container) || isCaretContainer(container)) {
                return;
              }

              // Don't walk into elements that doesn't have any child nodes like a IMG
              if (container.hasChildNodes() && !/TABLE/.test(container.nodeName)) {
                // Walk the DOM to find a text node to place the caret at or a BR
                node = container;
                walker = new TreeWalker(container, body);

                do {
                  if (isContentEditableFalse(node) || isCaretContainer(node)) {
                    normalized = false;
                    break;
                  }

                  // Found a text node use that position
                  if (node.nodeType === 3 && node.nodeValue.length > 0) {
                    offset = directionLeft ? 0 : node.nodeValue.length;
                    container = node;
                    normalized = true;
                    break;
                  }

                  // Found a BR/IMG element that we can place the caret before
                  if (nonEmptyElementsMap[node.nodeName.toLowerCase()] && !isTableCell(node)) {
                    offset = dom.nodeIndex(node);
                    container = node.parentNode;

                    // Put caret after image when moving the end point
                    if (node.nodeName == "IMG" && !directionLeft) {
                      offset++;
                    }

                    normalized = true;
                    break;
                  }
                } while ((node = (directionLeft ? walker.next() : walker.prev())));
              }
            }
          }

          // Lean the caret to the left if possible
          if (collapsed) {
            // So this: <b>x</b><i>|x</i>
            // Becomes: <b>x|</b><i>x</i>
            // Seems that only gecko has issues with this
            if (container.nodeType === 3 && offset === 0) {
              findTextNodeRelative(true);
            }

            // Lean left into empty inline elements when the caret is before a BR
            // So this: <i><b></b><i>|<br></i>
            // Becomes: <i><b>|</b><i><br></i>
            // Seems that only gecko has issues with this.
            // Special edge case for <p><a>x</a>|<br></p> since we don't want <p><a>x|</a><br></p>
            if (container.nodeType === 1) {
              node = container.childNodes[offset];

              // Offset is after the containers last child
              // then use the previous child for normalization
              if (!node) {
                node = container.childNodes[offset - 1];
              }

              if (node && node.nodeName === 'BR' && !isPrevNode(node, 'A') &&
                !hasBrBeforeAfter(node) && !hasBrBeforeAfter(node, true)) {
                findTextNodeRelative(true, node);
              }
            }
          }

          // Lean the start of the selection right if possible
          // So this: x[<b>x]</b>
          // Becomes: x<b>[x]</b>
          if (directionLeft && !collapsed && container.nodeType === 3 && offset === container.nodeValue.length) {
            findTextNodeRelative(false);
          }

          // Set endpoint if it was normalized
          if (normalized) {
            rng['set' + (start ? 'Start' : 'End')](container, offset);
          }
        }

        collapsed = rng.collapsed;

        normalizeEndPoint(true);

        if (!collapsed) {
          normalizeEndPoint();
        }

        // If it was collapsed then make sure it still is
        if (normalized && collapsed) {
          rng.collapse(true);
        }

        return normalized;
      };
    }

    /**
     * Compares two ranges and checks if they are equal.
     *
     * @static
     * @method compareRanges
     * @param {DOMRange} rng1 First range to compare.
     * @param {DOMRange} rng2 First range to compare.
     * @return {Boolean} true/false if the ranges are equal.
     */
    RangeUtils.compareRanges = function (rng1, rng2) {
      if (rng1 && rng2) {
        // Compare native IE ranges
        if (rng1.item || rng1.duplicate) {
          // Both are control ranges and the selected element matches
          if (rng1.item && rng2.item && rng1.item(0) === rng2.item(0)) {
            return true;
          }

          // Both are text ranges and the range matches
          if (rng1.isEqual && rng2.isEqual && rng2.isEqual(rng1)) {
            return true;
          }
        } else {
          // Compare w3c ranges
          return rng1.startContainer == rng2.startContainer && rng1.startOffset == rng2.startOffset;
        }
      }

      return false;
    };

    /**
     * Finds the closest selection rect tries to get the range from that.
     */
    function findClosestIeRange(clientX, clientY, doc) {
      var element, rng, rects;

      element = doc.elementFromPoint(clientX, clientY);
      rng = doc.body.createTextRange();

      if (!element || element.tagName == 'HTML') {
        element = doc.body;
      }

      rng.moveToElementText(element);
      rects = Tools.toArray(rng.getClientRects());

      rects = rects.sort(function (a, b) {
        a = Math.abs(Math.max(a.top - clientY, a.bottom - clientY));
        b = Math.abs(Math.max(b.top - clientY, b.bottom - clientY));

        return a - b;
      });

      if (rects.length > 0) {
        clientY = (rects[0].bottom + rects[0].top) / 2;

        try {
          rng.moveToPoint(clientX, clientY);
          rng.collapse(true);

          return rng;
        } catch (ex) {
          // At least we tried
        }
      }

      return null;
    }

    function moveOutOfContentEditableFalse(rng, rootNode) {
      var parentElement = rng && rng.parentElement ? rng.parentElement() : null;
      return isContentEditableFalse(findParent(parentElement, rootNode, hasCeProperty)) ? null : rng;
    }

    /**
     * Gets the caret range for the given x/y location.
     *
     * @static
     * @method getCaretRangeFromPoint
     * @param {Number} clientX X coordinate for range
     * @param {Number} clientY Y coordinate for range
     * @param {Document} doc Document that x/y are relative to
     * @returns {Range} caret range
     */
    RangeUtils.getCaretRangeFromPoint = function (clientX, clientY, doc) {
      var rng, point;

      if (doc.caretPositionFromPoint) {
        point = doc.caretPositionFromPoint(clientX, clientY);
        rng = doc.createRange();
        rng.setStart(point.offsetNode, point.offset);
        rng.collapse(true);
      } else if (doc.caretRangeFromPoint) {
        rng = doc.caretRangeFromPoint(clientX, clientY);
      } else if (doc.body.createTextRange) {
        rng = doc.body.createTextRange();

        try {
          rng.moveToPoint(clientX, clientY);
          rng.collapse(true);
        } catch (ex) {
          rng = findClosestIeRange(clientX, clientY, doc);
        }

        return moveOutOfContentEditableFalse(rng, doc.body);
      }

      return rng;
    };

    RangeUtils.getSelectedNode = function (range) {
      var startContainer = range.startContainer,
        startOffset = range.startOffset;

      if (startContainer.hasChildNodes() && range.endOffset == startOffset + 1) {
        return startContainer.childNodes[startOffset];
      }

      return null;
    };

    RangeUtils.getNode = function (container, offset) {
      if (container.nodeType == 1 && container.hasChildNodes()) {
        if (offset >= container.childNodes.length) {
          offset = container.childNodes.length - 1;
        }

        container = container.childNodes[offset];
      }

      return container;
    };

    return RangeUtils;
  }
);

/**
 * Node.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is a minimalistic implementation of a DOM like node used by the DomParser class.
 *
 * @example
 * var node = new tinymce.html.Node('strong', 1);
 * someRoot.append(node);
 *
 * @class tinymce.html.Node
 * @version 3.4
 */
define(
  'tinymce.core.html.Node',
  [
  ],
  function () {
    var whiteSpaceRegExp = /^[ \t\r\n]*$/;
    var typeLookup = {
      '#text': 3,
      '#comment': 8,
      '#cdata': 4,
      '#pi': 7,
      '#doctype': 10,
      '#document-fragment': 11
    };

    // Walks the tree left/right
    function walk(node, rootNode, prev) {
      var sibling, parent, startName = prev ? 'lastChild' : 'firstChild', siblingName = prev ? 'prev' : 'next';

      // Walk into nodes if it has a start
      if (node[startName]) {
        return node[startName];
      }

      // Return the sibling if it has one
      if (node !== rootNode) {
        sibling = node[siblingName];

        if (sibling) {
          return sibling;
        }

        // Walk up the parents to look for siblings
        for (parent = node.parent; parent && parent !== rootNode; parent = parent.parent) {
          sibling = parent[siblingName];

          if (sibling) {
            return sibling;
          }
        }
      }
    }

    /**
     * Constructs a new Node instance.
     *
     * @constructor
     * @method Node
     * @param {String} name Name of the node type.
     * @param {Number} type Numeric type representing the node.
     */
    function Node(name, type) {
      this.name = name;
      this.type = type;

      if (type === 1) {
        this.attributes = [];
        this.attributes.map = {};
      }
    }

    Node.prototype = {
      /**
       * Replaces the current node with the specified one.
       *
       * @example
       * someNode.replace(someNewNode);
       *
       * @method replace
       * @param {tinymce.html.Node} node Node to replace the current node with.
       * @return {tinymce.html.Node} The old node that got replaced.
       */
      replace: function (node) {
        var self = this;

        if (node.parent) {
          node.remove();
        }

        self.insert(node, self);
        self.remove();

        return self;
      },

      /**
       * Gets/sets or removes an attribute by name.
       *
       * @example
       * someNode.attr("name", "value"); // Sets an attribute
       * console.log(someNode.attr("name")); // Gets an attribute
       * someNode.attr("name", null); // Removes an attribute
       *
       * @method attr
       * @param {String} name Attribute name to set or get.
       * @param {String} value Optional value to set.
       * @return {String/tinymce.html.Node} String or undefined on a get operation or the current node on a set operation.
       */
      attr: function (name, value) {
        var self = this, attrs, i, undef;

        if (typeof name !== "string") {
          for (i in name) {
            self.attr(i, name[i]);
          }

          return self;
        }

        if ((attrs = self.attributes)) {
          if (value !== undef) {
            // Remove attribute
            if (value === null) {
              if (name in attrs.map) {
                delete attrs.map[name];

                i = attrs.length;
                while (i--) {
                  if (attrs[i].name === name) {
                    attrs = attrs.splice(i, 1);
                    return self;
                  }
                }
              }

              return self;
            }

            // Set attribute
            if (name in attrs.map) {
              // Set attribute
              i = attrs.length;
              while (i--) {
                if (attrs[i].name === name) {
                  attrs[i].value = value;
                  break;
                }
              }
            } else {
              attrs.push({ name: name, value: value });
            }

            attrs.map[name] = value;

            return self;
          }

          return attrs.map[name];
        }
      },

      /**
       * Does a shallow clones the node into a new node. It will also exclude id attributes since
       * there should only be one id per document.
       *
       * @example
       * var clonedNode = node.clone();
       *
       * @method clone
       * @return {tinymce.html.Node} New copy of the original node.
       */
      clone: function () {
        var self = this, clone = new Node(self.name, self.type), i, l, selfAttrs, selfAttr, cloneAttrs;

        // Clone element attributes
        if ((selfAttrs = self.attributes)) {
          cloneAttrs = [];
          cloneAttrs.map = {};

          for (i = 0, l = selfAttrs.length; i < l; i++) {
            selfAttr = selfAttrs[i];

            // Clone everything except id
            if (selfAttr.name !== 'id') {
              cloneAttrs[cloneAttrs.length] = { name: selfAttr.name, value: selfAttr.value };
              cloneAttrs.map[selfAttr.name] = selfAttr.value;
            }
          }

          clone.attributes = cloneAttrs;
        }

        clone.value = self.value;
        clone.shortEnded = self.shortEnded;

        return clone;
      },

      /**
       * Wraps the node in in another node.
       *
       * @example
       * node.wrap(wrapperNode);
       *
       * @method wrap
       */
      wrap: function (wrapper) {
        var self = this;

        self.parent.insert(wrapper, self);
        wrapper.append(self);

        return self;
      },

      /**
       * Unwraps the node in other words it removes the node but keeps the children.
       *
       * @example
       * node.unwrap();
       *
       * @method unwrap
       */
      unwrap: function () {
        var self = this, node, next;

        for (node = self.firstChild; node;) {
          next = node.next;
          self.insert(node, self, true);
          node = next;
        }

        self.remove();
      },

      /**
       * Removes the node from it's parent.
       *
       * @example
       * node.remove();
       *
       * @method remove
       * @return {tinymce.html.Node} Current node that got removed.
       */
      remove: function () {
        var self = this, parent = self.parent, next = self.next, prev = self.prev;

        if (parent) {
          if (parent.firstChild === self) {
            parent.firstChild = next;

            if (next) {
              next.prev = null;
            }
          } else {
            prev.next = next;
          }

          if (parent.lastChild === self) {
            parent.lastChild = prev;

            if (prev) {
              prev.next = null;
            }
          } else {
            next.prev = prev;
          }

          self.parent = self.next = self.prev = null;
        }

        return self;
      },

      /**
       * Appends a new node as a child of the current node.
       *
       * @example
       * node.append(someNode);
       *
       * @method append
       * @param {tinymce.html.Node} node Node to append as a child of the current one.
       * @return {tinymce.html.Node} The node that got appended.
       */
      append: function (node) {
        var self = this, last;

        if (node.parent) {
          node.remove();
        }

        last = self.lastChild;
        if (last) {
          last.next = node;
          node.prev = last;
          self.lastChild = node;
        } else {
          self.lastChild = self.firstChild = node;
        }

        node.parent = self;

        return node;
      },

      /**
       * Inserts a node at a specific position as a child of the current node.
       *
       * @example
       * parentNode.insert(newChildNode, oldChildNode);
       *
       * @method insert
       * @param {tinymce.html.Node} node Node to insert as a child of the current node.
       * @param {tinymce.html.Node} refNode Reference node to set node before/after.
       * @param {Boolean} before Optional state to insert the node before the reference node.
       * @return {tinymce.html.Node} The node that got inserted.
       */
      insert: function (node, refNode, before) {
        var parent;

        if (node.parent) {
          node.remove();
        }

        parent = refNode.parent || this;

        if (before) {
          if (refNode === parent.firstChild) {
            parent.firstChild = node;
          } else {
            refNode.prev.next = node;
          }

          node.prev = refNode.prev;
          node.next = refNode;
          refNode.prev = node;
        } else {
          if (refNode === parent.lastChild) {
            parent.lastChild = node;
          } else {
            refNode.next.prev = node;
          }

          node.next = refNode.next;
          node.prev = refNode;
          refNode.next = node;
        }

        node.parent = parent;

        return node;
      },

      /**
       * Get all children by name.
       *
       * @method getAll
       * @param {String} name Name of the child nodes to collect.
       * @return {Array} Array with child nodes matchin the specified name.
       */
      getAll: function (name) {
        var self = this, node, collection = [];

        for (node = self.firstChild; node; node = walk(node, self)) {
          if (node.name === name) {
            collection.push(node);
          }
        }

        return collection;
      },

      /**
       * Removes all children of the current node.
       *
       * @method empty
       * @return {tinymce.html.Node} The current node that got cleared.
       */
      empty: function () {
        var self = this, nodes, i, node;

        // Remove all children
        if (self.firstChild) {
          nodes = [];

          // Collect the children
          for (node = self.firstChild; node; node = walk(node, self)) {
            nodes.push(node);
          }

          // Remove the children
          i = nodes.length;
          while (i--) {
            node = nodes[i];
            node.parent = node.firstChild = node.lastChild = node.next = node.prev = null;
          }
        }

        self.firstChild = self.lastChild = null;

        return self;
      },

      /**
       * Returns true/false if the node is to be considered empty or not.
       *
       * @example
       * node.isEmpty({img: true});
       * @method isEmpty
       * @param {Object} elements Name/value object with elements that are automatically treated as non empty elements.
       * @param {Object} whitespace Name/value object with elements that are automatically treated whitespace preservables.
       * @return {Boolean} true/false if the node is empty or not.
       */
      isEmpty: function (elements, whitespace) {
        var self = this, node = self.firstChild, i, name;

        whitespace = whitespace || {};

        if (node) {
          do {
            if (node.type === 1) {
              // Ignore bogus elements
              if (node.attributes.map['data-mce-bogus']) {
                continue;
              }

              // Keep empty elements like <img />
              if (elements[node.name]) {
                return false;
              }

              // Keep bookmark nodes and name attribute like <a name="1"></a>
              i = node.attributes.length;
              while (i--) {
                name = node.attributes[i].name;
                if (name === "name" || name.indexOf('data-mce-bookmark') === 0) {
                  return false;
                }
              }
            }

            // Keep comments
            if (node.type === 8) {
              return false;
            }

            // Keep non whitespace text nodes
            if (node.type === 3 && !whiteSpaceRegExp.test(node.value)) {
              return false;
            }

            // Keep whitespace preserve elements
            if (node.type === 3 && node.parent && whitespace[node.parent.name] && whiteSpaceRegExp.test(node.value)) {
              return false;
            }
          } while ((node = walk(node, self)));
        }

        return true;
      },

      /**
       * Walks to the next or previous node and returns that node or null if it wasn't found.
       *
       * @method walk
       * @param {Boolean} prev Optional previous node state defaults to false.
       * @return {tinymce.html.Node} Node that is next to or previous of the current node.
       */
      walk: function (prev) {
        return walk(this, null, prev);
      }
    };

    /**
     * Creates a node of a specific type.
     *
     * @static
     * @method create
     * @param {String} name Name of the node type to create for example "b" or "#text".
     * @param {Object} attrs Name/value collection of attributes that will be applied to elements.
     */
    Node.create = function (name, attrs) {
      var node, attrName;

      // Create node
      node = new Node(name, typeLookup[name] || 1);

      // Add attributes if needed
      if (attrs) {
        for (attrName in attrs) {
          node.attr(attrName, attrs[attrName]);
        }
      }

      return node;
    };

    return Node;
  }
);

/**
 * SaxParser.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*eslint max-depth:[2, 9] */

/**
 * This class parses HTML code using pure JavaScript and executes various events for each item it finds. It will
 * always execute the events in the right order for tag soup code like <b><p></b></p>. It will also remove elements
 * and attributes that doesn't fit the schema if the validate setting is enabled.
 *
 * @example
 * var parser = new tinymce.html.SaxParser({
 *     validate: true,
 *
 *     comment: function(text) {
 *         console.log('Comment:', text);
 *     },
 *
 *     cdata: function(text) {
 *         console.log('CDATA:', text);
 *     },
 *
 *     text: function(text, raw) {
 *         console.log('Text:', text, 'Raw:', raw);
 *     },
 *
 *     start: function(name, attrs, empty) {
 *         console.log('Start:', name, attrs, empty);
 *     },
 *
 *     end: function(name) {
 *         console.log('End:', name);
 *     },
 *
 *     pi: function(name, text) {
 *         console.log('PI:', name, text);
 *     },
 *
 *     doctype: function(text) {
 *         console.log('DocType:', text);
 *     }
 * }, schema);
 * @class tinymce.html.SaxParser
 * @version 3.4
 */
define(
  'tinymce.core.html.SaxParser',
  [
    "tinymce.core.html.Schema",
    "tinymce.core.html.Entities",
    "tinymce.core.util.Tools"
  ],
  function (Schema, Entities, Tools) {
    var each = Tools.each;

    var isValidPrefixAttrName = function (name) {
      return name.indexOf('data-') === 0 || name.indexOf('aria-') === 0;
    };

    /**
     * Returns the index of the end tag for a specific start tag. This can be
     * used to skip all children of a parent element from being processed.
     *
     * @private
     * @method findEndTag
     * @param {tinymce.html.Schema} schema Schema instance to use to match short ended elements.
     * @param {String} html HTML string to find the end tag in.
     * @param {Number} startIndex Indext to start searching at should be after the start tag.
     * @return {Number} Index of the end tag.
     */
    function findEndTag(schema, html, startIndex) {
      var count = 1, index, matches, tokenRegExp, shortEndedElements;

      shortEndedElements = schema.getShortEndedElements();
      tokenRegExp = /<([!?\/])?([A-Za-z0-9\-_\:\.]+)((?:\s+[^"\'>]+(?:(?:"[^"]*")|(?:\'[^\']*\')|[^>]*))*|\/|\s+)>/g;
      tokenRegExp.lastIndex = index = startIndex;

      while ((matches = tokenRegExp.exec(html))) {
        index = tokenRegExp.lastIndex;

        if (matches[1] === '/') { // End element
          count--;
        } else if (!matches[1]) { // Start element
          if (matches[2] in shortEndedElements) {
            continue;
          }

          count++;
        }

        if (count === 0) {
          break;
        }
      }

      return index;
    }

    /**
     * Constructs a new SaxParser instance.
     *
     * @constructor
     * @method SaxParser
     * @param {Object} settings Name/value collection of settings. comment, cdata, text, start and end are callbacks.
     * @param {tinymce.html.Schema} schema HTML Schema class to use when parsing.
     */
    function SaxParser(settings, schema) {
      var self = this;

      function noop() { }

      settings = settings || {};
      self.schema = schema = schema || new Schema();

      if (settings.fix_self_closing !== false) {
        settings.fix_self_closing = true;
      }

      // Add handler functions from settings and setup default handlers
      each('comment cdata text start end pi doctype'.split(' '), function (name) {
        if (name) {
          self[name] = settings[name] || noop;
        }
      });

      /**
       * Parses the specified HTML string and executes the callbacks for each item it finds.
       *
       * @example
       * new SaxParser({...}).parse('<b>text</b>');
       * @method parse
       * @param {String} html Html string to sax parse.
       */
      self.parse = function (html) {
        var self = this, matches, index = 0, value, endRegExp, stack = [], attrList, i, text, name;
        var isInternalElement, removeInternalElements, shortEndedElements, fillAttrsMap, isShortEnded;
        var validate, elementRule, isValidElement, attr, attribsValue, validAttributesMap, validAttributePatterns;
        var attributesRequired, attributesDefault, attributesForced, processHtml;
        var anyAttributesRequired, selfClosing, tokenRegExp, attrRegExp, specialElements, attrValue, idCount = 0;
        var decode = Entities.decode, fixSelfClosing, filteredUrlAttrs = Tools.makeMap('src,href,data,background,formaction,poster');
        var scriptUriRegExp = /((java|vb)script|mhtml):/i, dataUriRegExp = /^data:/i;

        function processEndTag(name) {
          var pos, i;

          // Find position of parent of the same type
          pos = stack.length;
          while (pos--) {
            if (stack[pos].name === name) {
              break;
            }
          }

          // Found parent
          if (pos >= 0) {
            // Close all the open elements
            for (i = stack.length - 1; i >= pos; i--) {
              name = stack[i];

              if (name.valid) {
                self.end(name.name);
              }
            }

            // Remove the open elements from the stack
            stack.length = pos;
          }
        }

        function parseAttribute(match, name, value, val2, val3) {
          var attrRule, i, trimRegExp = /[\s\u0000-\u001F]+/g;

          name = name.toLowerCase();
          value = name in fillAttrsMap ? name : decode(value || val2 || val3 || ''); // Handle boolean attribute than value attribute

          // Validate name and value pass through all data- attributes
          if (validate && !isInternalElement && isValidPrefixAttrName(name) === false) {
            attrRule = validAttributesMap[name];

            // Find rule by pattern matching
            if (!attrRule && validAttributePatterns) {
              i = validAttributePatterns.length;
              while (i--) {
                attrRule = validAttributePatterns[i];
                if (attrRule.pattern.test(name)) {
                  break;
                }
              }

              // No rule matched
              if (i === -1) {
                attrRule = null;
              }
            }

            // No attribute rule found
            if (!attrRule) {
              return;
            }

            // Validate value
            if (attrRule.validValues && !(value in attrRule.validValues)) {
              return;
            }
          }

          // Block any javascript: urls or non image data uris
          if (filteredUrlAttrs[name] && !settings.allow_script_urls) {
            var uri = value.replace(trimRegExp, '');

            try {
              // Might throw malformed URI sequence
              uri = decodeURIComponent(uri);
            } catch (ex) {
              // Fallback to non UTF-8 decoder
              uri = unescape(uri);
            }

            if (scriptUriRegExp.test(uri)) {
              return;
            }

            if (!settings.allow_html_data_urls && dataUriRegExp.test(uri) && !/^data:image\//i.test(uri)) {
              return;
            }
          }

          // Add attribute to list and map
          attrList.map[name] = value;
          attrList.push({
            name: name,
            value: value
          });
        }

        // Precompile RegExps and map objects
        tokenRegExp = new RegExp('<(?:' +
          '(?:!--([\\w\\W]*?)-->)|' + // Comment
          '(?:!\\[CDATA\\[([\\w\\W]*?)\\]\\]>)|' + // CDATA
          '(?:!DOCTYPE([\\w\\W]*?)>)|' + // DOCTYPE
          '(?:\\?([^\\s\\/<>]+) ?([\\w\\W]*?)[?/]>)|' + // PI
          '(?:\\/([A-Za-z][A-Za-z0-9\\-_\\:\\.]*)>)|' + // End element
          '(?:([A-Za-z][A-Za-z0-9\\-_\\:\\.]*)((?:\\s+[^"\'>]+(?:(?:"[^"]*")|(?:\'[^\']*\')|[^>]*))*|\\/|\\s+)>)' + // Start element
          ')', 'g');

        attrRegExp = /([\w:\-]+)(?:\s*=\s*(?:(?:\"((?:[^\"])*)\")|(?:\'((?:[^\'])*)\')|([^>\s]+)))?/g;

        // Setup lookup tables for empty elements and boolean attributes
        shortEndedElements = schema.getShortEndedElements();
        selfClosing = settings.self_closing_elements || schema.getSelfClosingElements();
        fillAttrsMap = schema.getBoolAttrs();
        validate = settings.validate;
        removeInternalElements = settings.remove_internals;
        fixSelfClosing = settings.fix_self_closing;
        specialElements = schema.getSpecialElements();
        processHtml = html + '>';

        while ((matches = tokenRegExp.exec(processHtml))) { // Adds and extra '>' to keep regexps from doing catastrofic backtracking on malformed html
          // Text
          if (index < matches.index) {
            self.text(decode(html.substr(index, matches.index - index)));
          }

          if ((value = matches[6])) { // End element
            value = value.toLowerCase();

            // IE will add a ":" in front of elements it doesn't understand like custom elements or HTML5 elements
            if (value.charAt(0) === ':') {
              value = value.substr(1);
            }

            processEndTag(value);
          } else if ((value = matches[7])) { // Start element
            // Did we consume the extra character then treat it as text
            // This handles the case with html like this: "text a<b text"
            if (matches.index + matches[0].length > html.length) {
              self.text(decode(html.substr(matches.index)));
              index = matches.index + matches[0].length;
              continue;
            }

            value = value.toLowerCase();

            // IE will add a ":" in front of elements it doesn't understand like custom elements or HTML5 elements
            if (value.charAt(0) === ':') {
              value = value.substr(1);
            }

            isShortEnded = value in shortEndedElements;

            // Is self closing tag for example an <li> after an open <li>
            if (fixSelfClosing && selfClosing[value] && stack.length > 0 && stack[stack.length - 1].name === value) {
              processEndTag(value);
            }

            // Validate element
            if (!validate || (elementRule = schema.getElementRule(value))) {
              isValidElement = true;

              // Grab attributes map and patters when validation is enabled
              if (validate) {
                validAttributesMap = elementRule.attributes;
                validAttributePatterns = elementRule.attributePatterns;
              }

              // Parse attributes
              if ((attribsValue = matches[8])) {
                isInternalElement = attribsValue.indexOf('data-mce-type') !== -1; // Check if the element is an internal element

                // If the element has internal attributes then remove it if we are told to do so
                if (isInternalElement && removeInternalElements) {
                  isValidElement = false;
                }

                attrList = [];
                attrList.map = {};

                attribsValue.replace(attrRegExp, parseAttribute);
              } else {
                attrList = [];
                attrList.map = {};
              }

              // Process attributes if validation is enabled
              if (validate && !isInternalElement) {
                attributesRequired = elementRule.attributesRequired;
                attributesDefault = elementRule.attributesDefault;
                attributesForced = elementRule.attributesForced;
                anyAttributesRequired = elementRule.removeEmptyAttrs;

                // Check if any attribute exists
                if (anyAttributesRequired && !attrList.length) {
                  isValidElement = false;
                }

                // Handle forced attributes
                if (attributesForced) {
                  i = attributesForced.length;
                  while (i--) {
                    attr = attributesForced[i];
                    name = attr.name;
                    attrValue = attr.value;

                    if (attrValue === '{$uid}') {
                      attrValue = 'mce_' + idCount++;
                    }

                    attrList.map[name] = attrValue;
                    attrList.push({ name: name, value: attrValue });
                  }
                }

                // Handle default attributes
                if (attributesDefault) {
                  i = attributesDefault.length;
                  while (i--) {
                    attr = attributesDefault[i];
                    name = attr.name;

                    if (!(name in attrList.map)) {
                      attrValue = attr.value;

                      if (attrValue === '{$uid}') {
                        attrValue = 'mce_' + idCount++;
                      }

                      attrList.map[name] = attrValue;
                      attrList.push({ name: name, value: attrValue });
                    }
                  }
                }

                // Handle required attributes
                if (attributesRequired) {
                  i = attributesRequired.length;
                  while (i--) {
                    if (attributesRequired[i] in attrList.map) {
                      break;
                    }
                  }

                  // None of the required attributes where found
                  if (i === -1) {
                    isValidElement = false;
                  }
                }

                // Invalidate element if it's marked as bogus
                if ((attr = attrList.map['data-mce-bogus'])) {
                  if (attr === 'all') {
                    index = findEndTag(schema, html, tokenRegExp.lastIndex);
                    tokenRegExp.lastIndex = index;
                    continue;
                  }

                  isValidElement = false;
                }
              }

              if (isValidElement) {
                self.start(value, attrList, isShortEnded);
              }
            } else {
              isValidElement = false;
            }

            // Treat script, noscript and style a bit different since they may include code that looks like elements
            if ((endRegExp = specialElements[value])) {
              endRegExp.lastIndex = index = matches.index + matches[0].length;

              if ((matches = endRegExp.exec(html))) {
                if (isValidElement) {
                  text = html.substr(index, matches.index - index);
                }

                index = matches.index + matches[0].length;
              } else {
                text = html.substr(index);
                index = html.length;
              }

              if (isValidElement) {
                if (text.length > 0) {
                  self.text(text, true);
                }

                self.end(value);
              }

              tokenRegExp.lastIndex = index;
              continue;
            }

            // Push value on to stack
            if (!isShortEnded) {
              if (!attribsValue || attribsValue.indexOf('/') != attribsValue.length - 1) {
                stack.push({ name: value, valid: isValidElement });
              } else if (isValidElement) {
                self.end(value);
              }
            }
          } else if ((value = matches[1])) { // Comment
            // Padd comment value to avoid browsers from parsing invalid comments as HTML
            if (value.charAt(0) === '>') {
              value = ' ' + value;
            }

            if (!settings.allow_conditional_comments && value.substr(0, 3).toLowerCase() === '[if') {
              value = ' ' + value;
            }

            self.comment(value);
          } else if ((value = matches[2])) { // CDATA
            self.cdata(value);
          } else if ((value = matches[3])) { // DOCTYPE
            self.doctype(value);
          } else if ((value = matches[4])) { // PI
            self.pi(value, matches[5]);
          }

          index = matches.index + matches[0].length;
        }

        // Text
        if (index < html.length) {
          self.text(decode(html.substr(index)));
        }

        // Close any open elements
        for (i = stack.length - 1; i >= 0; i--) {
          value = stack[i];

          if (value.valid) {
            self.end(value.name);
          }
        }
      };
    }

    SaxParser.findEndTag = findEndTag;

    return SaxParser;
  }
);
/**
 * DomParser.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class parses HTML code into a DOM like structure of nodes it will remove redundant whitespace and make
 * sure that the node tree is valid according to the specified schema.
 * So for example: <p>a<p>b</p>c</p> will become <p>a</p><p>b</p><p>c</p>
 *
 * @example
 * var parser = new tinymce.html.DomParser({validate: true}, schema);
 * var rootNode = parser.parse('<h1>content</h1>');
 *
 * @class tinymce.html.DomParser
 * @version 3.4
 */
define(
  'tinymce.core.html.DomParser',
  [
    "tinymce.core.html.Node",
    "tinymce.core.html.Schema",
    "tinymce.core.html.SaxParser",
    "tinymce.core.util.Tools"
  ],
  function (Node, Schema, SaxParser, Tools) {
    var makeMap = Tools.makeMap, each = Tools.each, explode = Tools.explode, extend = Tools.extend;

    var paddEmptyNode = function (settings, node) {
      if (settings.padd_empty_with_br) {
        node.empty().append(new Node('br', '1')).shortEnded = true;
      } else {
        node.empty().append(new Node('#text', '3')).value = '\u00a0';
      }
    };

    var hasOnlyChild = function (node, name) {
      return node && node.firstChild === node.lastChild && node.firstChild.name === name;
    };

    /**
     * Constructs a new DomParser instance.
     *
     * @constructor
     * @method DomParser
     * @param {Object} settings Name/value collection of settings. comment, cdata, text, start and end are callbacks.
     * @param {tinymce.html.Schema} schema HTML Schema class to use when parsing.
     */
    return function (settings, schema) {
      var self = this, nodeFilters = {}, attributeFilters = [], matchedNodes = {}, matchedAttributes = {};

      settings = settings || {};
      settings.validate = "validate" in settings ? settings.validate : true;
      settings.root_name = settings.root_name || 'body';
      self.schema = schema = schema || new Schema();

      function fixInvalidChildren(nodes) {
        var ni, node, parent, parents, newParent, currentNode, tempNode, childNode, i;
        var nonEmptyElements, whitespaceElements, nonSplitableElements, textBlockElements, specialElements, sibling, nextNode;

        nonSplitableElements = makeMap('tr,td,th,tbody,thead,tfoot,table');
        nonEmptyElements = schema.getNonEmptyElements();
        whitespaceElements = schema.getWhiteSpaceElements();
        textBlockElements = schema.getTextBlockElements();
        specialElements = schema.getSpecialElements();

        for (ni = 0; ni < nodes.length; ni++) {
          node = nodes[ni];

          // Already removed or fixed
          if (!node.parent || node.fixed) {
            continue;
          }

          // If the invalid element is a text block and the text block is within a parent LI element
          // Then unwrap the first text block and convert other sibling text blocks to LI elements similar to Word/Open Office
          if (textBlockElements[node.name] && node.parent.name == 'li') {
            // Move sibling text blocks after LI element
            sibling = node.next;
            while (sibling) {
              if (textBlockElements[sibling.name]) {
                sibling.name = 'li';
                sibling.fixed = true;
                node.parent.insert(sibling, node.parent);
              } else {
                break;
              }

              sibling = sibling.next;
            }

            // Unwrap current text block
            node.unwrap(node);
            continue;
          }

          // Get list of all parent nodes until we find a valid parent to stick the child into
          parents = [node];
          for (parent = node.parent; parent && !schema.isValidChild(parent.name, node.name) &&
            !nonSplitableElements[parent.name]; parent = parent.parent) {
            parents.push(parent);
          }

          // Found a suitable parent
          if (parent && parents.length > 1) {
            // Reverse the array since it makes looping easier
            parents.reverse();

            // Clone the related parent and insert that after the moved node
            newParent = currentNode = self.filterNode(parents[0].clone());

            // Start cloning and moving children on the left side of the target node
            for (i = 0; i < parents.length - 1; i++) {
              if (schema.isValidChild(currentNode.name, parents[i].name)) {
                tempNode = self.filterNode(parents[i].clone());
                currentNode.append(tempNode);
              } else {
                tempNode = currentNode;
              }

              for (childNode = parents[i].firstChild; childNode && childNode != parents[i + 1];) {
                nextNode = childNode.next;
                tempNode.append(childNode);
                childNode = nextNode;
              }

              currentNode = tempNode;
            }

            if (!newParent.isEmpty(nonEmptyElements, whitespaceElements)) {
              parent.insert(newParent, parents[0], true);
              parent.insert(node, newParent);
            } else {
              parent.insert(node, parents[0], true);
            }

            // Check if the element is empty by looking through it's contents and special treatment for <p><br /></p>
            parent = parents[0];
            if (parent.isEmpty(nonEmptyElements, whitespaceElements) || hasOnlyChild(parent, 'br')) {
              parent.empty().remove();
            }
          } else if (node.parent) {
            // If it's an LI try to find a UL/OL for it or wrap it
            if (node.name === 'li') {
              sibling = node.prev;
              if (sibling && (sibling.name === 'ul' || sibling.name === 'ul')) {
                sibling.append(node);
                continue;
              }

              sibling = node.next;
              if (sibling && (sibling.name === 'ul' || sibling.name === 'ul')) {
                sibling.insert(node, sibling.firstChild, true);
                continue;
              }

              node.wrap(self.filterNode(new Node('ul', 1)));
              continue;
            }

            // Try wrapping the element in a DIV
            if (schema.isValidChild(node.parent.name, 'div') && schema.isValidChild('div', node.name)) {
              node.wrap(self.filterNode(new Node('div', 1)));
            } else {
              // We failed wrapping it, then remove or unwrap it
              if (specialElements[node.name]) {
                node.empty().remove();
              } else {
                node.unwrap();
              }
            }
          }
        }
      }

      /**
       * Runs the specified node though the element and attributes filters.
       *
       * @method filterNode
       * @param {tinymce.html.Node} Node the node to run filters on.
       * @return {tinymce.html.Node} The passed in node.
       */
      self.filterNode = function (node) {
        var i, name, list;

        // Run element filters
        if (name in nodeFilters) {
          list = matchedNodes[name];

          if (list) {
            list.push(node);
          } else {
            matchedNodes[name] = [node];
          }
        }

        // Run attribute filters
        i = attributeFilters.length;
        while (i--) {
          name = attributeFilters[i].name;

          if (name in node.attributes.map) {
            list = matchedAttributes[name];

            if (list) {
              list.push(node);
            } else {
              matchedAttributes[name] = [node];
            }
          }
        }

        return node;
      };

      /**
       * Adds a node filter function to the parser, the parser will collect the specified nodes by name
       * and then execute the callback ones it has finished parsing the document.
       *
       * @example
       * parser.addNodeFilter('p,h1', function(nodes, name) {
       *  for (var i = 0; i < nodes.length; i++) {
       *   console.log(nodes[i].name);
       *  }
       * });
       * @method addNodeFilter
       * @method {String} name Comma separated list of nodes to collect.
       * @param {function} callback Callback function to execute once it has collected nodes.
       */
      self.addNodeFilter = function (name, callback) {
        each(explode(name), function (name) {
          var list = nodeFilters[name];

          if (!list) {
            nodeFilters[name] = list = [];
          }

          list.push(callback);
        });
      };

      /**
       * Adds a attribute filter function to the parser, the parser will collect nodes that has the specified attributes
       * and then execute the callback ones it has finished parsing the document.
       *
       * @example
       * parser.addAttributeFilter('src,href', function(nodes, name) {
       *  for (var i = 0; i < nodes.length; i++) {
       *   console.log(nodes[i].name);
       *  }
       * });
       * @method addAttributeFilter
       * @method {String} name Comma separated list of nodes to collect.
       * @param {function} callback Callback function to execute once it has collected nodes.
       */
      self.addAttributeFilter = function (name, callback) {
        each(explode(name), function (name) {
          var i;

          for (i = 0; i < attributeFilters.length; i++) {
            if (attributeFilters[i].name === name) {
              attributeFilters[i].callbacks.push(callback);
              return;
            }
          }

          attributeFilters.push({ name: name, callbacks: [callback] });
        });
      };

      /**
       * Parses the specified HTML string into a DOM like node tree and returns the result.
       *
       * @example
       * var rootNode = new DomParser({...}).parse('<b>text</b>');
       * @method parse
       * @param {String} html Html string to sax parse.
       * @param {Object} args Optional args object that gets passed to all filter functions.
       * @return {tinymce.html.Node} Root node containing the tree.
       */
      self.parse = function (html, args) {
        var parser, rootNode, node, nodes, i, l, fi, fl, list, name, validate;
        var blockElements, startWhiteSpaceRegExp, invalidChildren = [], isInWhiteSpacePreservedElement;
        var endWhiteSpaceRegExp, allWhiteSpaceRegExp, isAllWhiteSpaceRegExp, whiteSpaceElements;
        var children, nonEmptyElements, rootBlockName;

        args = args || {};
        matchedNodes = {};
        matchedAttributes = {};
        blockElements = extend(makeMap('script,style,head,html,body,title,meta,param'), schema.getBlockElements());
        nonEmptyElements = schema.getNonEmptyElements();
        children = schema.children;
        validate = settings.validate;
        rootBlockName = "forced_root_block" in args ? args.forced_root_block : settings.forced_root_block;

        whiteSpaceElements = schema.getWhiteSpaceElements();
        startWhiteSpaceRegExp = /^[ \t\r\n]+/;
        endWhiteSpaceRegExp = /[ \t\r\n]+$/;
        allWhiteSpaceRegExp = /[ \t\r\n]+/g;
        isAllWhiteSpaceRegExp = /^[ \t\r\n]+$/;

        function addRootBlocks() {
          var node = rootNode.firstChild, next, rootBlockNode;

          // Removes whitespace at beginning and end of block so:
          // <p> x </p> -> <p>x</p>
          function trim(rootBlockNode) {
            if (rootBlockNode) {
              node = rootBlockNode.firstChild;
              if (node && node.type == 3) {
                node.value = node.value.replace(startWhiteSpaceRegExp, '');
              }

              node = rootBlockNode.lastChild;
              if (node && node.type == 3) {
                node.value = node.value.replace(endWhiteSpaceRegExp, '');
              }
            }
          }

          // Check if rootBlock is valid within rootNode for example if P is valid in H1 if H1 is the contentEditabe root
          if (!schema.isValidChild(rootNode.name, rootBlockName.toLowerCase())) {
            return;
          }

          while (node) {
            next = node.next;

            if (node.type == 3 || (node.type == 1 && node.name !== 'p' &&
              !blockElements[node.name] && !node.attr('data-mce-type'))) {
              if (!rootBlockNode) {
                // Create a new root block element
                rootBlockNode = createNode(rootBlockName, 1);
                rootBlockNode.attr(settings.forced_root_block_attrs);
                rootNode.insert(rootBlockNode, node);
                rootBlockNode.append(node);
              } else {
                rootBlockNode.append(node);
              }
            } else {
              trim(rootBlockNode);
              rootBlockNode = null;
            }

            node = next;
          }

          trim(rootBlockNode);
        }

        function createNode(name, type) {
          var node = new Node(name, type), list;

          if (name in nodeFilters) {
            list = matchedNodes[name];

            if (list) {
              list.push(node);
            } else {
              matchedNodes[name] = [node];
            }
          }

          return node;
        }

        function removeWhitespaceBefore(node) {
          var textNode, textNodeNext, textVal, sibling, blockElements = schema.getBlockElements();

          for (textNode = node.prev; textNode && textNode.type === 3;) {
            textVal = textNode.value.replace(endWhiteSpaceRegExp, '');

            // Found a text node with non whitespace then trim that and break
            if (textVal.length > 0) {
              textNode.value = textVal;
              return;
            }

            textNodeNext = textNode.next;

            // Fix for bug #7543 where bogus nodes would produce empty
            // text nodes and these would be removed if a nested list was before it
            if (textNodeNext) {
              if (textNodeNext.type == 3 && textNodeNext.value.length) {
                textNode = textNode.prev;
                continue;
              }

              if (!blockElements[textNodeNext.name] && textNodeNext.name != 'script' && textNodeNext.name != 'style') {
                textNode = textNode.prev;
                continue;
              }
            }

            sibling = textNode.prev;
            textNode.remove();
            textNode = sibling;
          }
        }

        function cloneAndExcludeBlocks(input) {
          var name, output = {};

          for (name in input) {
            if (name !== 'li' && name != 'p') {
              output[name] = input[name];
            }
          }

          return output;
        }

        parser = new SaxParser({
          validate: validate,
          allow_script_urls: settings.allow_script_urls,
          allow_conditional_comments: settings.allow_conditional_comments,

          // Exclude P and LI from DOM parsing since it's treated better by the DOM parser
          self_closing_elements: cloneAndExcludeBlocks(schema.getSelfClosingElements()),

          cdata: function (text) {
            node.append(createNode('#cdata', 4)).value = text;
          },

          text: function (text, raw) {
            var textNode;

            // Trim all redundant whitespace on non white space elements
            if (!isInWhiteSpacePreservedElement) {
              text = text.replace(allWhiteSpaceRegExp, ' ');

              if (node.lastChild && blockElements[node.lastChild.name]) {
                text = text.replace(startWhiteSpaceRegExp, '');
              }
            }

            // Do we need to create the node
            if (text.length !== 0) {
              textNode = createNode('#text', 3);
              textNode.raw = !!raw;
              node.append(textNode).value = text;
            }
          },

          comment: function (text) {
            node.append(createNode('#comment', 8)).value = text;
          },

          pi: function (name, text) {
            node.append(createNode(name, 7)).value = text;
            removeWhitespaceBefore(node);
          },

          doctype: function (text) {
            var newNode;

            newNode = node.append(createNode('#doctype', 10));
            newNode.value = text;
            removeWhitespaceBefore(node);
          },

          start: function (name, attrs, empty) {
            var newNode, attrFiltersLen, elementRule, attrName, parent;

            elementRule = validate ? schema.getElementRule(name) : {};
            if (elementRule) {
              newNode = createNode(elementRule.outputName || name, 1);
              newNode.attributes = attrs;
              newNode.shortEnded = empty;

              node.append(newNode);

              // Check if node is valid child of the parent node is the child is
              // unknown we don't collect it since it's probably a custom element
              parent = children[node.name];
              if (parent && children[newNode.name] && !parent[newNode.name]) {
                invalidChildren.push(newNode);
              }

              attrFiltersLen = attributeFilters.length;
              while (attrFiltersLen--) {
                attrName = attributeFilters[attrFiltersLen].name;

                if (attrName in attrs.map) {
                  list = matchedAttributes[attrName];

                  if (list) {
                    list.push(newNode);
                  } else {
                    matchedAttributes[attrName] = [newNode];
                  }
                }
              }

              // Trim whitespace before block
              if (blockElements[name]) {
                removeWhitespaceBefore(newNode);
              }

              // Change current node if the element wasn't empty i.e not <br /> or <img />
              if (!empty) {
                node = newNode;
              }

              // Check if we are inside a whitespace preserved element
              if (!isInWhiteSpacePreservedElement && whiteSpaceElements[name]) {
                isInWhiteSpacePreservedElement = true;
              }
            }
          },

          end: function (name) {
            var textNode, elementRule, text, sibling, tempNode;

            elementRule = validate ? schema.getElementRule(name) : {};
            if (elementRule) {
              if (blockElements[name]) {
                if (!isInWhiteSpacePreservedElement) {
                  // Trim whitespace of the first node in a block
                  textNode = node.firstChild;
                  if (textNode && textNode.type === 3) {
                    text = textNode.value.replace(startWhiteSpaceRegExp, '');

                    // Any characters left after trim or should we remove it
                    if (text.length > 0) {
                      textNode.value = text;
                      textNode = textNode.next;
                    } else {
                      sibling = textNode.next;
                      textNode.remove();
                      textNode = sibling;

                      // Remove any pure whitespace siblings
                      while (textNode && textNode.type === 3) {
                        text = textNode.value;
                        sibling = textNode.next;

                        if (text.length === 0 || isAllWhiteSpaceRegExp.test(text)) {
                          textNode.remove();
                          textNode = sibling;
                        }

                        textNode = sibling;
                      }
                    }
                  }

                  // Trim whitespace of the last node in a block
                  textNode = node.lastChild;
                  if (textNode && textNode.type === 3) {
                    text = textNode.value.replace(endWhiteSpaceRegExp, '');

                    // Any characters left after trim or should we remove it
                    if (text.length > 0) {
                      textNode.value = text;
                      textNode = textNode.prev;
                    } else {
                      sibling = textNode.prev;
                      textNode.remove();
                      textNode = sibling;

                      // Remove any pure whitespace siblings
                      while (textNode && textNode.type === 3) {
                        text = textNode.value;
                        sibling = textNode.prev;

                        if (text.length === 0 || isAllWhiteSpaceRegExp.test(text)) {
                          textNode.remove();
                          textNode = sibling;
                        }

                        textNode = sibling;
                      }
                    }
                  }
                }

                // Trim start white space
                // Removed due to: #5424
                /*textNode = node.prev;
                if (textNode && textNode.type === 3) {
                  text = textNode.value.replace(startWhiteSpaceRegExp, '');

                  if (text.length > 0)
                    textNode.value = text;
                  else
                    textNode.remove();
                }*/
              }

              // Check if we exited a whitespace preserved element
              if (isInWhiteSpacePreservedElement && whiteSpaceElements[name]) {
                isInWhiteSpacePreservedElement = false;
              }

              // Handle empty nodes
              if (elementRule.removeEmpty || elementRule.paddEmpty) {
                if (node.isEmpty(nonEmptyElements, whiteSpaceElements)) {
                  if (elementRule.paddEmpty) {
                    paddEmptyNode(settings, node);
                  } else {
                    // Leave nodes that have a name like <a name="name">
                    if (!node.attributes.map.name && !node.attributes.map.id) {
                      tempNode = node.parent;

                      if (blockElements[node.name]) {
                        node.empty().remove();
                      } else {
                        node.unwrap();
                      }

                      node = tempNode;
                      return;
                    }
                  }
                }
              }

              node = node.parent;
            }
          }
        }, schema);

        rootNode = node = new Node(args.context || settings.root_name, 11);

        parser.parse(html);

        // Fix invalid children or report invalid children in a contextual parsing
        if (validate && invalidChildren.length) {
          if (!args.context) {
            fixInvalidChildren(invalidChildren);
          } else {
            args.invalid = true;
          }
        }

        // Wrap nodes in the root into block elements if the root is body
        if (rootBlockName && (rootNode.name == 'body' || args.isRootContent)) {
          addRootBlocks();
        }

        // Run filters only when the contents is valid
        if (!args.invalid) {
          // Run node filters
          for (name in matchedNodes) {
            list = nodeFilters[name];
            nodes = matchedNodes[name];

            // Remove already removed children
            fi = nodes.length;
            while (fi--) {
              if (!nodes[fi].parent) {
                nodes.splice(fi, 1);
              }
            }

            for (i = 0, l = list.length; i < l; i++) {
              list[i](nodes, name, args);
            }
          }

          // Run attribute filters
          for (i = 0, l = attributeFilters.length; i < l; i++) {
            list = attributeFilters[i];

            if (list.name in matchedAttributes) {
              nodes = matchedAttributes[list.name];

              // Remove already removed children
              fi = nodes.length;
              while (fi--) {
                if (!nodes[fi].parent) {
                  nodes.splice(fi, 1);
                }
              }

              for (fi = 0, fl = list.callbacks.length; fi < fl; fi++) {
                list.callbacks[fi](nodes, list.name, args);
              }
            }
          }
        }

        return rootNode;
      };

      // Remove <br> at end of block elements Gecko and WebKit injects BR elements to
      // make it possible to place the caret inside empty blocks. This logic tries to remove
      // these elements and keep br elements that where intended to be there intact
      if (settings.remove_trailing_brs) {
        self.addNodeFilter('br', function (nodes) {
          var i, l = nodes.length, node, blockElements = extend({}, schema.getBlockElements());
          var nonEmptyElements = schema.getNonEmptyElements(), parent, lastParent, prev, prevName;
          var whiteSpaceElements = schema.getNonEmptyElements();
          var elementRule, textNode;

          // Remove brs from body element as well
          blockElements.body = 1;

          // Must loop forwards since it will otherwise remove all brs in <p>a<br><br><br></p>
          for (i = 0; i < l; i++) {
            node = nodes[i];
            parent = node.parent;

            if (blockElements[node.parent.name] && node === parent.lastChild) {
              // Loop all nodes to the left of the current node and check for other BR elements
              // excluding bookmarks since they are invisible
              prev = node.prev;
              while (prev) {
                prevName = prev.name;

                // Ignore bookmarks
                if (prevName !== "span" || prev.attr('data-mce-type') !== 'bookmark') {
                  // Found a non BR element
                  if (prevName !== "br") {
                    break;
                  }

                  // Found another br it's a <br><br> structure then don't remove anything
                  if (prevName === 'br') {
                    node = null;
                    break;
                  }
                }

                prev = prev.prev;
              }

              if (node) {
                node.remove();

                // Is the parent to be considered empty after we removed the BR
                if (parent.isEmpty(nonEmptyElements, whiteSpaceElements)) {
                  elementRule = schema.getElementRule(parent.name);

                  // Remove or padd the element depending on schema rule
                  if (elementRule) {
                    if (elementRule.removeEmpty) {
                      parent.remove();
                    } else if (elementRule.paddEmpty) {
                      paddEmptyNode(settings, parent);
                    }
                  }
                }
              }
            } else {
              // Replaces BR elements inside inline elements like <p><b><i><br></i></b></p>
              // so they become <p><b><i>&nbsp;</i></b></p>
              lastParent = node;
              while (parent && parent.firstChild === lastParent && parent.lastChild === lastParent) {
                lastParent = parent;

                if (blockElements[parent.name]) {
                  break;
                }

                parent = parent.parent;
              }

              if (lastParent === parent && settings.padd_empty_with_br !== true) {
                textNode = new Node('#text', 3);
                textNode.value = '\u00a0';
                node.replace(textNode);
              }
            }
          }
        });
      }

      if (!settings.allow_unsafe_link_target) {
        self.addAttributeFilter('href', function (nodes) {
          var i = nodes.length, node, rel;
          var rules = 'noopener noreferrer';

          function addTargetRules(rel) {
            rel = removeTargetRules(rel);
            return rel ? [rel, rules].join(' ') : rules;
          }

          function removeTargetRules(rel) {
            var regExp = new RegExp('(' + rules.replace(' ', '|') + ')', 'g');
            if (rel) {
              rel = Tools.trim(rel.replace(regExp, ''));
            }
            return rel ? rel : null;
          }

          function toggleTargetRules(rel, isUnsafe) {
            return isUnsafe ? addTargetRules(rel) : removeTargetRules(rel);
          }

          while (i--) {
            node = nodes[i];
            rel = node.attr('rel');
            if (node.name === 'a') {
              node.attr('rel', toggleTargetRules(rel, node.attr('target') == '_blank'));
            }
          }
        });
      }

      // Force anchor names closed, unless the setting "allow_html_in_named_anchor" is explicitly included.
      if (!settings.allow_html_in_named_anchor) {
        self.addAttributeFilter('id,name', function (nodes) {
          var i = nodes.length, sibling, prevSibling, parent, node;

          while (i--) {
            node = nodes[i];
            if (node.name === 'a' && node.firstChild && !node.attr('href')) {
              parent = node.parent;

              // Move children after current node
              sibling = node.lastChild;
              do {
                prevSibling = sibling.prev;
                parent.insert(sibling, node);
                sibling = prevSibling;
              } while (sibling);
            }
          }
        });
      }

      if (settings.fix_list_elements) {
        self.addNodeFilter('ul,ol', function (nodes) {
          var i = nodes.length, node, parentNode;

          while (i--) {
            node = nodes[i];
            parentNode = node.parent;

            if (parentNode.name === 'ul' || parentNode.name === 'ol') {
              if (node.prev && node.prev.name === 'li') {
                node.prev.append(node);
              } else {
                var li = new Node('li', 1);
                li.attr('style', 'list-style-type: none');
                node.wrap(li);
              }
            }
          }
        });
      }

      if (settings.validate && schema.getValidClasses()) {
        self.addAttributeFilter('class', function (nodes) {
          var i = nodes.length, node, classList, ci, className, classValue;
          var validClasses = schema.getValidClasses(), validClassesMap, valid;

          while (i--) {
            node = nodes[i];
            classList = node.attr('class').split(' ');
            classValue = '';

            for (ci = 0; ci < classList.length; ci++) {
              className = classList[ci];
              valid = false;

              validClassesMap = validClasses['*'];
              if (validClassesMap && validClassesMap[className]) {
                valid = true;
              }

              validClassesMap = validClasses[node.name];
              if (!valid && validClassesMap && validClassesMap[className]) {
                valid = true;
              }

              if (valid) {
                if (classValue) {
                  classValue += ' ';
                }

                classValue += className;
              }
            }

            if (!classValue.length) {
              classValue = null;
            }

            node.attr('class', classValue);
          }
        });
      }
    };
  }
);

/**
 * Writer.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is used to write HTML tags out it can be used with the Serializer or the SaxParser.
 *
 * @class tinymce.html.Writer
 * @example
 * var writer = new tinymce.html.Writer({indent: true});
 * var parser = new tinymce.html.SaxParser(writer).parse('<p><br></p>');
 * console.log(writer.getContent());
 *
 * @class tinymce.html.Writer
 * @version 3.4
 */
define(
  'tinymce.core.html.Writer',
  [
    "tinymce.core.html.Entities",
    "tinymce.core.util.Tools"
  ],
  function (Entities, Tools) {
    var makeMap = Tools.makeMap;

    /**
     * Constructs a new Writer instance.
     *
     * @constructor
     * @method Writer
     * @param {Object} settings Name/value settings object.
     */
    return function (settings) {
      var html = [], indent, indentBefore, indentAfter, encode, htmlOutput;

      settings = settings || {};
      indent = settings.indent;
      indentBefore = makeMap(settings.indent_before || '');
      indentAfter = makeMap(settings.indent_after || '');
      encode = Entities.getEncodeFunc(settings.entity_encoding || 'raw', settings.entities);
      htmlOutput = settings.element_format == "html";

      return {
        /**
         * Writes the a start element such as <p id="a">.
         *
         * @method start
         * @param {String} name Name of the element.
         * @param {Array} attrs Optional attribute array or undefined if it hasn't any.
         * @param {Boolean} empty Optional empty state if the tag should end like <br />.
         */
        start: function (name, attrs, empty) {
          var i, l, attr, value;

          if (indent && indentBefore[name] && html.length > 0) {
            value = html[html.length - 1];

            if (value.length > 0 && value !== '\n') {
              html.push('\n');
            }
          }

          html.push('<', name);

          if (attrs) {
            for (i = 0, l = attrs.length; i < l; i++) {
              attr = attrs[i];
              html.push(' ', attr.name, '="', encode(attr.value, true), '"');
            }
          }

          if (!empty || htmlOutput) {
            html[html.length] = '>';
          } else {
            html[html.length] = ' />';
          }

          if (empty && indent && indentAfter[name] && html.length > 0) {
            value = html[html.length - 1];

            if (value.length > 0 && value !== '\n') {
              html.push('\n');
            }
          }
        },

        /**
         * Writes the a end element such as </p>.
         *
         * @method end
         * @param {String} name Name of the element.
         */
        end: function (name) {
          var value;

          /*if (indent && indentBefore[name] && html.length > 0) {
            value = html[html.length - 1];

            if (value.length > 0 && value !== '\n')
              html.push('\n');
          }*/

          html.push('</', name, '>');

          if (indent && indentAfter[name] && html.length > 0) {
            value = html[html.length - 1];

            if (value.length > 0 && value !== '\n') {
              html.push('\n');
            }
          }
        },

        /**
         * Writes a text node.
         *
         * @method text
         * @param {String} text String to write out.
         * @param {Boolean} raw Optional raw state if true the contents wont get encoded.
         */
        text: function (text, raw) {
          if (text.length > 0) {
            html[html.length] = raw ? text : encode(text);
          }
        },

        /**
         * Writes a cdata node such as <![CDATA[data]]>.
         *
         * @method cdata
         * @param {String} text String to write out inside the cdata.
         */
        cdata: function (text) {
          html.push('<![CDATA[', text, ']]>');
        },

        /**
         * Writes a comment node such as <!-- Comment -->.
         *
         * @method cdata
         * @param {String} text String to write out inside the comment.
         */
        comment: function (text) {
          html.push('<!--', text, '-->');
        },

        /**
         * Writes a PI node such as <?xml attr="value" ?>.
         *
         * @method pi
         * @param {String} name Name of the pi.
         * @param {String} text String to write out inside the pi.
         */
        pi: function (name, text) {
          if (text) {
            html.push('<?', name, ' ', encode(text), '?>');
          } else {
            html.push('<?', name, '?>');
          }

          if (indent) {
            html.push('\n');
          }
        },

        /**
         * Writes a doctype node such as <!DOCTYPE data>.
         *
         * @method doctype
         * @param {String} text String to write out inside the doctype.
         */
        doctype: function (text) {
          html.push('<!DOCTYPE', text, '>', indent ? '\n' : '');
        },

        /**
         * Resets the internal buffer if one wants to reuse the writer.
         *
         * @method reset
         */
        reset: function () {
          html.length = 0;
        },

        /**
         * Returns the contents that got serialized.
         *
         * @method getContent
         * @return {String} HTML contents that got written down.
         */
        getContent: function () {
          return html.join('').replace(/\n$/, '');
        }
      };
    };
  }
);
/**
 * Serializer.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is used to serialize down the DOM tree into a string using a Writer instance.
 *
 *
 * @example
 * new tinymce.html.Serializer().serialize(new tinymce.html.DomParser().parse('<p>text</p>'));
 * @class tinymce.html.Serializer
 * @version 3.4
 */
define(
  'tinymce.core.html.Serializer',
  [
    "tinymce.core.html.Writer",
    "tinymce.core.html.Schema"
  ],
  function (Writer, Schema) {
    /**
     * Constructs a new Serializer instance.
     *
     * @constructor
     * @method Serializer
     * @param {Object} settings Name/value settings object.
     * @param {tinymce.html.Schema} schema Schema instance to use.
     */
    return function (settings, schema) {
      var self = this, writer = new Writer(settings);

      settings = settings || {};
      settings.validate = "validate" in settings ? settings.validate : true;

      self.schema = schema = schema || new Schema();
      self.writer = writer;

      /**
       * Serializes the specified node into a string.
       *
       * @example
       * new tinymce.html.Serializer().serialize(new tinymce.html.DomParser().parse('<p>text</p>'));
       * @method serialize
       * @param {tinymce.html.Node} node Node instance to serialize.
       * @return {String} String with HTML based on DOM tree.
       */
      self.serialize = function (node) {
        var handlers, validate;

        validate = settings.validate;

        handlers = {
          // #text
          3: function (node) {
            writer.text(node.value, node.raw);
          },

          // #comment
          8: function (node) {
            writer.comment(node.value);
          },

          // Processing instruction
          7: function (node) {
            writer.pi(node.name, node.value);
          },

          // Doctype
          10: function (node) {
            writer.doctype(node.value);
          },

          // CDATA
          4: function (node) {
            writer.cdata(node.value);
          },

          // Document fragment
          11: function (node) {
            if ((node = node.firstChild)) {
              do {
                walk(node);
              } while ((node = node.next));
            }
          }
        };

        writer.reset();

        function walk(node) {
          var handler = handlers[node.type], name, isEmpty, attrs, attrName, attrValue, sortedAttrs, i, l, elementRule;

          if (!handler) {
            name = node.name;
            isEmpty = node.shortEnded;
            attrs = node.attributes;

            // Sort attributes
            if (validate && attrs && attrs.length > 1) {
              sortedAttrs = [];
              sortedAttrs.map = {};

              elementRule = schema.getElementRule(node.name);
              if (elementRule) {
                for (i = 0, l = elementRule.attributesOrder.length; i < l; i++) {
                  attrName = elementRule.attributesOrder[i];

                  if (attrName in attrs.map) {
                    attrValue = attrs.map[attrName];
                    sortedAttrs.map[attrName] = attrValue;
                    sortedAttrs.push({ name: attrName, value: attrValue });
                  }
                }

                for (i = 0, l = attrs.length; i < l; i++) {
                  attrName = attrs[i].name;

                  if (!(attrName in sortedAttrs.map)) {
                    attrValue = attrs.map[attrName];
                    sortedAttrs.map[attrName] = attrValue;
                    sortedAttrs.push({ name: attrName, value: attrValue });
                  }
                }

                attrs = sortedAttrs;
              }
            }

            writer.start(node.name, attrs, isEmpty);

            if (!isEmpty) {
              if ((node = node.firstChild)) {
                do {
                  walk(node);
                } while ((node = node.next));
              }

              writer.end(name);
            }
          } else {
            handler(node);
          }
        }

        // Serialize element and treat all non elements as fragments
        if (node.type == 1 && !settings.inner) {
          walk(node);
        } else {
          handlers[11](node);
        }

        return writer.getContent();
      };
    };
  }
);

/**
 * Serializer.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is used to serialize DOM trees into a string. Consult the TinyMCE Wiki API for
 * more details and examples on how to use this class.
 *
 * @class tinymce.dom.Serializer
 */
define(
  'tinymce.core.dom.Serializer',
  [
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.html.DomParser",
    "tinymce.core.html.SaxParser",
    "tinymce.core.html.Entities",
    "tinymce.core.html.Serializer",
    "tinymce.core.html.Node",
    "tinymce.core.html.Schema",
    "tinymce.core.Env",
    "tinymce.core.util.Tools",
    "tinymce.core.text.Zwsp"
  ],
  function (DOMUtils, DomParser, SaxParser, Entities, Serializer, Node, Schema, Env, Tools, Zwsp) {
    var each = Tools.each, trim = Tools.trim;
    var DOM = DOMUtils.DOM;

    /**
     * IE 11 has a fantastic bug where it will produce two trailing BR elements to iframe bodies when
     * the iframe is hidden by display: none on a parent container. The DOM is actually out of sync
     * with innerHTML in this case. It's like IE adds shadow DOM BR elements that appears on innerHTML
     * but not as the lastChild of the body. So this fix simply removes the last two
     * BR elements at the end of the document.
     *
     * Example of what happens: <body>text</body> becomes <body>text<br><br></body>
     */
    function trimTrailingBr(rootNode) {
      var brNode1, brNode2;

      function isBr(node) {
        return node && node.name === 'br';
      }

      brNode1 = rootNode.lastChild;
      if (isBr(brNode1)) {
        brNode2 = brNode1.prev;

        if (isBr(brNode2)) {
          brNode1.remove();
          brNode2.remove();
        }
      }
    }

    /**
     * Constructs a new DOM serializer class.
     *
     * @constructor
     * @method Serializer
     * @param {Object} settings Serializer settings object.
     * @param {tinymce.Editor} editor Optional editor to bind events to and get schema/dom from.
     */
    return function (settings, editor) {
      var dom, schema, htmlParser, tempAttrs = ["data-mce-selected"];

      if (editor) {
        dom = editor.dom;
        schema = editor.schema;
      }

      function trimHtml(html) {
        var trimContentRegExp = new RegExp([
          '<span[^>]+data-mce-bogus[^>]+>[\u200B\uFEFF]+<\\/span>', // Trim bogus spans like caret containers
          '\\s?(' + tempAttrs.join('|') + ')="[^"]+"' // Trim temporaty data-mce prefixed attributes like data-mce-selected
        ].join('|'), 'gi');

        html = Zwsp.trim(html.replace(trimContentRegExp, ''));

        return html;
      }

      function trimContent(html) {
        var content = html;
        var bogusAllRegExp = /<(\w+) [^>]*data-mce-bogus="all"[^>]*>/g;
        var endTagIndex, index, matchLength, matches, shortEndedElements, schema = editor.schema;

        content = trimHtml(content);
        shortEndedElements = schema.getShortEndedElements();

        // Remove all bogus elements marked with "all"
        while ((matches = bogusAllRegExp.exec(content))) {
          index = bogusAllRegExp.lastIndex;
          matchLength = matches[0].length;

          if (shortEndedElements[matches[1]]) {
            endTagIndex = index;
          } else {
            endTagIndex = SaxParser.findEndTag(schema, content, index);
          }

          content = content.substring(0, index - matchLength) + content.substring(endTagIndex);
          bogusAllRegExp.lastIndex = index - matchLength;
        }

        return content;
      }

      /**
       * Returns a trimmed version of the editor contents to be used for the undo level. This
       * will remove any data-mce-bogus="all" marked elements since these are used for UI it will also
       * remove the data-mce-selected attributes used for selection of objects and caret containers.
       * It will keep all data-mce-bogus="1" elements since these can be used to place the caret etc and will
       * be removed by the serialization logic when you save.
       *
       * @private
       * @return {String} HTML contents of the editor excluding some internal bogus elements.
       */
      function getTrimmedContent() {
        return trimContent(editor.getBody().innerHTML);
      }

      function addTempAttr(name) {
        if (Tools.inArray(tempAttrs, name) === -1) {
          htmlParser.addAttributeFilter(name, function (nodes, name) {
            var i = nodes.length;

            while (i--) {
              nodes[i].attr(name, null);
            }
          });

          tempAttrs.push(name);
        }
      }

      // Default DOM and Schema if they are undefined
      dom = dom || DOM;
      schema = schema || new Schema(settings);
      settings.entity_encoding = settings.entity_encoding || 'named';
      settings.remove_trailing_brs = "remove_trailing_brs" in settings ? settings.remove_trailing_brs : true;

      htmlParser = new DomParser(settings, schema);

      // Convert tabindex back to elements when serializing contents
      htmlParser.addAttributeFilter('data-mce-tabindex', function (nodes, name) {
        var i = nodes.length, node;

        while (i--) {
          node = nodes[i];
          node.attr('tabindex', node.attributes.map['data-mce-tabindex']);
          node.attr(name, null);
        }
      });

      // Convert move data-mce-src, data-mce-href and data-mce-style into nodes or process them if needed
      htmlParser.addAttributeFilter('src,href,style', function (nodes, name) {
        var i = nodes.length, node, value, internalName = 'data-mce-' + name;
        var urlConverter = settings.url_converter, urlConverterScope = settings.url_converter_scope, undef;

        while (i--) {
          node = nodes[i];

          value = node.attributes.map[internalName];
          if (value !== undef) {
            // Set external name to internal value and remove internal
            node.attr(name, value.length > 0 ? value : null);
            node.attr(internalName, null);
          } else {
            // No internal attribute found then convert the value we have in the DOM
            value = node.attributes.map[name];

            if (name === "style") {
              value = dom.serializeStyle(dom.parseStyle(value), node.name);
            } else if (urlConverter) {
              value = urlConverter.call(urlConverterScope, value, name, node.name);
            }

            node.attr(name, value.length > 0 ? value : null);
          }
        }
      });

      // Remove internal classes mceItem<..> or mceSelected
      htmlParser.addAttributeFilter('class', function (nodes) {
        var i = nodes.length, node, value;

        while (i--) {
          node = nodes[i];
          value = node.attr('class');

          if (value) {
            value = node.attr('class').replace(/(?:^|\s)mce-item-\w+(?!\S)/g, '');
            node.attr('class', value.length > 0 ? value : null);
          }
        }
      });

      // Remove bookmark elements
      htmlParser.addAttributeFilter('data-mce-type', function (nodes, name, args) {
        var i = nodes.length, node;

        while (i--) {
          node = nodes[i];

          if (node.attributes.map['data-mce-type'] === 'bookmark' && !args.cleanup) {
            node.remove();
          }
        }
      });

      htmlParser.addNodeFilter('noscript', function (nodes) {
        var i = nodes.length, node;

        while (i--) {
          node = nodes[i].firstChild;

          if (node) {
            node.value = Entities.decode(node.value);
          }
        }
      });

      // Force script into CDATA sections and remove the mce- prefix also add comments around styles
      htmlParser.addNodeFilter('script,style', function (nodes, name) {
        var i = nodes.length, node, value, type;

        function trim(value) {
          /*jshint maxlen:255 */
          /*eslint max-len:0 */
          return value.replace(/(<!--\[CDATA\[|\]\]-->)/g, '\n')
            .replace(/^[\r\n]*|[\r\n]*$/g, '')
            .replace(/^\s*((<!--)?(\s*\/\/)?\s*<!\[CDATA\[|(<!--\s*)?\/\*\s*<!\[CDATA\[\s*\*\/|(\/\/)?\s*<!--|\/\*\s*<!--\s*\*\/)\s*[\r\n]*/gi, '')
            .replace(/\s*(\/\*\s*\]\]>\s*\*\/(-->)?|\s*\/\/\s*\]\]>(-->)?|\/\/\s*(-->)?|\]\]>|\/\*\s*-->\s*\*\/|\s*-->\s*)\s*$/g, '');
        }

        while (i--) {
          node = nodes[i];
          value = node.firstChild ? node.firstChild.value : '';

          if (name === "script") {
            // Remove mce- prefix from script elements and remove default type since the user specified
            // a script element without type attribute
            type = node.attr('type');
            if (type) {
              node.attr('type', type == 'mce-no/type' ? null : type.replace(/^mce\-/, ''));
            }

            if (value.length > 0) {
              node.firstChild.value = '// <![CDATA[\n' + trim(value) + '\n// ]]>';
            }
          } else {
            if (value.length > 0) {
              node.firstChild.value = '<!--\n' + trim(value) + '\n-->';
            }
          }
        }
      });

      // Convert comments to cdata and handle protected comments
      htmlParser.addNodeFilter('#comment', function (nodes) {
        var i = nodes.length, node;

        while (i--) {
          node = nodes[i];

          if (node.value.indexOf('[CDATA[') === 0) {
            node.name = '#cdata';
            node.type = 4;
            node.value = node.value.replace(/^\[CDATA\[|\]\]$/g, '');
          } else if (node.value.indexOf('mce:protected ') === 0) {
            node.name = "#text";
            node.type = 3;
            node.raw = true;
            node.value = unescape(node.value).substr(14);
          }
        }
      });

      htmlParser.addNodeFilter('xml:namespace,input', function (nodes, name) {
        var i = nodes.length, node;

        while (i--) {
          node = nodes[i];
          if (node.type === 7) {
            node.remove();
          } else if (node.type === 1) {
            if (name === "input" && !("type" in node.attributes.map)) {
              node.attr('type', 'text');
            }
          }
        }
      });

      // Remove internal data attributes
      htmlParser.addAttributeFilter(
        'data-mce-src,data-mce-href,data-mce-style,' +
        'data-mce-selected,data-mce-expando,' +
        'data-mce-type,data-mce-resize',

        function (nodes, name) {
          var i = nodes.length;

          while (i--) {
            nodes[i].attr(name, null);
          }
        }
      );

      // Return public methods
      return {
        /**
         * Schema instance that was used to when the Serializer was constructed.
         *
         * @field {tinymce.html.Schema} schema
         */
        schema: schema,

        /**
         * Adds a node filter function to the parser used by the serializer, the parser will collect the specified nodes by name
         * and then execute the callback ones it has finished parsing the document.
         *
         * @example
         * parser.addNodeFilter('p,h1', function(nodes, name) {
         *  for (var i = 0; i < nodes.length; i++) {
         *   console.log(nodes[i].name);
         *  }
         * });
         * @method addNodeFilter
         * @method {String} name Comma separated list of nodes to collect.
         * @param {function} callback Callback function to execute once it has collected nodes.
         */
        addNodeFilter: htmlParser.addNodeFilter,

        /**
         * Adds a attribute filter function to the parser used by the serializer, the parser will
         * collect nodes that has the specified attributes
         * and then execute the callback ones it has finished parsing the document.
         *
         * @example
         * parser.addAttributeFilter('src,href', function(nodes, name) {
         *  for (var i = 0; i < nodes.length; i++) {
         *   console.log(nodes[i].name);
         *  }
         * });
         * @method addAttributeFilter
         * @method {String} name Comma separated list of nodes to collect.
         * @param {function} callback Callback function to execute once it has collected nodes.
         */
        addAttributeFilter: htmlParser.addAttributeFilter,

        /**
         * Serializes the specified browser DOM node into a HTML string.
         *
         * @method serialize
         * @param {DOMNode} node DOM node to serialize.
         * @param {Object} args Arguments option that gets passed to event handlers.
         */
        serialize: function (node, args) {
          var self = this, impl, doc, oldDoc, htmlSerializer, content, rootNode;

          // Explorer won't clone contents of script and style and the
          // selected index of select elements are cleared on a clone operation.
          if (Env.ie && dom.select('script,style,select,map').length > 0) {
            content = node.innerHTML;
            node = node.cloneNode(false);
            dom.setHTML(node, content);
          } else {
            node = node.cloneNode(true);
          }

          // Nodes needs to be attached to something in WebKit/Opera
          // This fix will make DOM ranges and make Sizzle happy!
          impl = document.implementation;
          if (impl.createHTMLDocument) {
            // Create an empty HTML document
            doc = impl.createHTMLDocument("");

            // Add the element or it's children if it's a body element to the new document
            each(node.nodeName == 'BODY' ? node.childNodes : [node], function (node) {
              doc.body.appendChild(doc.importNode(node, true));
            });

            // Grab first child or body element for serialization
            if (node.nodeName != 'BODY') {
              node = doc.body.firstChild;
            } else {
              node = doc.body;
            }

            // set the new document in DOMUtils so createElement etc works
            oldDoc = dom.doc;
            dom.doc = doc;
          }

          args = args || {};
          args.format = args.format || 'html';

          // Don't wrap content if we want selected html
          if (args.selection) {
            args.forced_root_block = '';
          }

          // Pre process
          if (!args.no_events) {
            args.node = node;
            self.onPreProcess(args);
          }

          // Parse HTML
          rootNode = htmlParser.parse(trim(args.getInner ? node.innerHTML : dom.getOuterHTML(node)), args);
          trimTrailingBr(rootNode);

          // Serialize HTML
          htmlSerializer = new Serializer(settings, schema);
          args.content = htmlSerializer.serialize(rootNode);

          // Replace all BOM characters for now until we can find a better solution
          if (!args.cleanup) {
            args.content = Zwsp.trim(args.content);
            args.content = args.content.replace(/\uFEFF/g, '');
          }

          // Post process
          if (!args.no_events) {
            self.onPostProcess(args);
          }

          // Restore the old document if it was changed
          if (oldDoc) {
            dom.doc = oldDoc;
          }

          args.node = null;

          return args.content;
        },

        /**
         * Adds valid elements rules to the serializers schema instance this enables you to specify things
         * like what elements should be outputted and what attributes specific elements might have.
         * Consult the Wiki for more details on this format.
         *
         * @method addRules
         * @param {String} rules Valid elements rules string to add to schema.
         */
        addRules: function (rules) {
          schema.addValidElements(rules);
        },

        /**
         * Sets the valid elements rules to the serializers schema instance this enables you to specify things
         * like what elements should be outputted and what attributes specific elements might have.
         * Consult the Wiki for more details on this format.
         *
         * @method setRules
         * @param {String} rules Valid elements rules string.
         */
        setRules: function (rules) {
          schema.setValidElements(rules);
        },

        onPreProcess: function (args) {
          if (editor) {
            editor.fire('PreProcess', args);
          }
        },

        onPostProcess: function (args) {
          if (editor) {
            editor.fire('PostProcess', args);
          }
        },

        /**
         * Adds a temporary internal attribute these attributes will get removed on undo and
         * when getting contents out of the editor.
         *
         * @method addTempAttr
         * @param {String} name string
         */
        addTempAttr: addTempAttr,

        // Internal
        trimHtml: trimHtml,
        getTrimmedContent: getTrimmedContent,
        trimContent: trimContent
      };
    };
  }
);

/**
 * VK.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This file exposes a set of the common KeyCodes for use. Please grow it as needed.
 */
define(
  'tinymce.core.util.VK',
  [
    "tinymce.core.Env"
  ],
  function (Env) {
    return {
      BACKSPACE: 8,
      DELETE: 46,
      DOWN: 40,
      ENTER: 13,
      LEFT: 37,
      RIGHT: 39,
      SPACEBAR: 32,
      TAB: 9,
      UP: 38,

      modifierPressed: function (e) {
        return e.shiftKey || e.ctrlKey || e.altKey || this.metaKeyPressed(e);
      },

      metaKeyPressed: function (e) {
        // Check if ctrl or meta key is pressed. Edge case for AltGr on Windows where it produces ctrlKey+altKey states
        return (Env.mac ? e.metaKey : e.ctrlKey && !e.altKey);
      }
    };
  }
);

/**
 * ControlSelection.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles control selection of elements. Controls are elements
 * that can be resized and needs to be selected as a whole. It adds custom resize handles
 * to all browser engines that support properly disabling the built in resize logic.
 *
 * @class tinymce.dom.ControlSelection
 */
define(
  'tinymce.core.dom.ControlSelection',
  [
    "tinymce.core.util.VK",
    "tinymce.core.util.Tools",
    "tinymce.core.util.Delay",
    "tinymce.core.Env",
    "tinymce.core.dom.NodeType"
  ],
  function (VK, Tools, Delay, Env, NodeType) {
    var isContentEditableFalse = NodeType.isContentEditableFalse;
    var isContentEditableTrue = NodeType.isContentEditableTrue;

    function getContentEditableRoot(root, node) {
      while (node && node != root) {
        if (isContentEditableTrue(node) || isContentEditableFalse(node)) {
          return node;
        }

        node = node.parentNode;
      }

      return null;
    }

    return function (selection, editor) {
      var dom = editor.dom, each = Tools.each;
      var selectedElm, selectedElmGhost, resizeHelper, resizeHandles, selectedHandle, lastMouseDownEvent;
      var startX, startY, selectedElmX, selectedElmY, startW, startH, ratio, resizeStarted;
      var width, height, editableDoc = editor.getDoc(), rootDocument = document, isIE = Env.ie && Env.ie < 11;
      var abs = Math.abs, round = Math.round, rootElement = editor.getBody(), startScrollWidth, startScrollHeight;

      // Details about each resize handle how to scale etc
      resizeHandles = {
        // Name: x multiplier, y multiplier, delta size x, delta size y
        /*n: [0.5, 0, 0, -1],
        e: [1, 0.5, 1, 0],
        s: [0.5, 1, 0, 1],
        w: [0, 0.5, -1, 0],*/
        nw: [0, 0, -1, -1],
        ne: [1, 0, 1, -1],
        se: [1, 1, 1, 1],
        sw: [0, 1, -1, 1]
      };

      // Add CSS for resize handles, cloned element and selected
      var rootClass = '.mce-content-body';
      editor.contentStyles.push(
        rootClass + ' div.mce-resizehandle {' +
        'position: absolute;' +
        'border: 1px solid black;' +
        'box-sizing: box-sizing;' +
        'background: #FFF;' +
        'width: 7px;' +
        'height: 7px;' +
        'z-index: 10000' +
        '}' +
        rootClass + ' .mce-resizehandle:hover {' +
        'background: #000' +
        '}' +
        rootClass + ' img[data-mce-selected],' + rootClass + ' hr[data-mce-selected] {' +
        'outline: 1px solid black;' +
        'resize: none' + // Have been talks about implementing this in browsers
        '}' +
        rootClass + ' .mce-clonedresizable {' +
        'position: absolute;' +
        (Env.gecko ? '' : 'outline: 1px dashed black;') + // Gecko produces trails while resizing
        'opacity: .5;' +
        'filter: alpha(opacity=50);' +
        'z-index: 10000' +
        '}' +
        rootClass + ' .mce-resize-helper {' +
        'background: #555;' +
        'background: rgba(0,0,0,0.75);' +
        'border-radius: 3px;' +
        'border: 1px;' +
        'color: white;' +
        'display: none;' +
        'font-family: sans-serif;' +
        'font-size: 12px;' +
        'white-space: nowrap;' +
        'line-height: 14px;' +
        'margin: 5px 10px;' +
        'padding: 5px;' +
        'position: absolute;' +
        'z-index: 10001' +
        '}'
      );

      function isResizable(elm) {
        var selector = editor.settings.object_resizing;

        if (selector === false || Env.iOS) {
          return false;
        }

        if (typeof selector != 'string') {
          selector = 'table,img,div';
        }

        if (elm.getAttribute('data-mce-resize') === 'false') {
          return false;
        }

        if (elm == editor.getBody()) {
          return false;
        }

        return editor.dom.is(elm, selector);
      }

      function resizeGhostElement(e) {
        var deltaX, deltaY, proportional;
        var resizeHelperX, resizeHelperY;

        // Calc new width/height
        deltaX = e.screenX - startX;
        deltaY = e.screenY - startY;

        // Calc new size
        width = deltaX * selectedHandle[2] + startW;
        height = deltaY * selectedHandle[3] + startH;

        // Never scale down lower than 5 pixels
        width = width < 5 ? 5 : width;
        height = height < 5 ? 5 : height;

        if (selectedElm.nodeName == "IMG" && editor.settings.resize_img_proportional !== false) {
          proportional = !VK.modifierPressed(e);
        } else {
          proportional = VK.modifierPressed(e) || (selectedElm.nodeName == "IMG" && selectedHandle[2] * selectedHandle[3] !== 0);
        }

        // Constrain proportions
        if (proportional) {
          if (abs(deltaX) > abs(deltaY)) {
            height = round(width * ratio);
            width = round(height / ratio);
          } else {
            width = round(height / ratio);
            height = round(width * ratio);
          }
        }

        // Update ghost size
        dom.setStyles(selectedElmGhost, {
          width: width,
          height: height
        });

        // Update resize helper position
        resizeHelperX = selectedHandle.startPos.x + deltaX;
        resizeHelperY = selectedHandle.startPos.y + deltaY;
        resizeHelperX = resizeHelperX > 0 ? resizeHelperX : 0;
        resizeHelperY = resizeHelperY > 0 ? resizeHelperY : 0;

        dom.setStyles(resizeHelper, {
          left: resizeHelperX,
          top: resizeHelperY,
          display: 'block'
        });

        resizeHelper.innerHTML = width + ' &times; ' + height;

        // Update ghost X position if needed
        if (selectedHandle[2] < 0 && selectedElmGhost.clientWidth <= width) {
          dom.setStyle(selectedElmGhost, 'left', selectedElmX + (startW - width));
        }

        // Update ghost Y position if needed
        if (selectedHandle[3] < 0 && selectedElmGhost.clientHeight <= height) {
          dom.setStyle(selectedElmGhost, 'top', selectedElmY + (startH - height));
        }

        // Calculate how must overflow we got
        deltaX = rootElement.scrollWidth - startScrollWidth;
        deltaY = rootElement.scrollHeight - startScrollHeight;

        // Re-position the resize helper based on the overflow
        if (deltaX + deltaY !== 0) {
          dom.setStyles(resizeHelper, {
            left: resizeHelperX - deltaX,
            top: resizeHelperY - deltaY
          });
        }

        if (!resizeStarted) {
          editor.fire('ObjectResizeStart', { target: selectedElm, width: startW, height: startH });
          resizeStarted = true;
        }
      }

      function endGhostResize() {
        resizeStarted = false;

        function setSizeProp(name, value) {
          if (value) {
            // Resize by using style or attribute
            if (selectedElm.style[name] || !editor.schema.isValid(selectedElm.nodeName.toLowerCase(), name)) {
              dom.setStyle(selectedElm, name, value);
            } else {
              dom.setAttrib(selectedElm, name, value);
            }
          }
        }

        // Set width/height properties
        setSizeProp('width', width);
        setSizeProp('height', height);

        dom.unbind(editableDoc, 'mousemove', resizeGhostElement);
        dom.unbind(editableDoc, 'mouseup', endGhostResize);

        if (rootDocument != editableDoc) {
          dom.unbind(rootDocument, 'mousemove', resizeGhostElement);
          dom.unbind(rootDocument, 'mouseup', endGhostResize);
        }

        // Remove ghost/helper and update resize handle positions
        dom.remove(selectedElmGhost);
        dom.remove(resizeHelper);

        if (!isIE || selectedElm.nodeName == "TABLE") {
          showResizeRect(selectedElm);
        }

        editor.fire('ObjectResized', { target: selectedElm, width: width, height: height });
        dom.setAttrib(selectedElm, 'style', dom.getAttrib(selectedElm, 'style'));
        editor.nodeChanged();
      }

      function showResizeRect(targetElm, mouseDownHandleName, mouseDownEvent) {
        var position, targetWidth, targetHeight, e, rect;

        hideResizeRect();
        unbindResizeHandleEvents();

        // Get position and size of target
        position = dom.getPos(targetElm, rootElement);
        selectedElmX = position.x;
        selectedElmY = position.y;
        rect = targetElm.getBoundingClientRect(); // Fix for Gecko offsetHeight for table with caption
        targetWidth = rect.width || (rect.right - rect.left);
        targetHeight = rect.height || (rect.bottom - rect.top);

        // Reset width/height if user selects a new image/table
        if (selectedElm != targetElm) {
          detachResizeStartListener();
          selectedElm = targetElm;
          width = height = 0;
        }

        // Makes it possible to disable resizing
        e = editor.fire('ObjectSelected', { target: targetElm });

        if (isResizable(targetElm) && !e.isDefaultPrevented()) {
          each(resizeHandles, function (handle, name) {
            var handleElm;

            function startDrag(e) {
              startX = e.screenX;
              startY = e.screenY;
              startW = selectedElm.clientWidth;
              startH = selectedElm.clientHeight;
              ratio = startH / startW;
              selectedHandle = handle;

              handle.startPos = {
                x: targetWidth * handle[0] + selectedElmX,
                y: targetHeight * handle[1] + selectedElmY
              };

              startScrollWidth = rootElement.scrollWidth;
              startScrollHeight = rootElement.scrollHeight;

              selectedElmGhost = selectedElm.cloneNode(true);
              dom.addClass(selectedElmGhost, 'mce-clonedresizable');
              dom.setAttrib(selectedElmGhost, 'data-mce-bogus', 'all');
              selectedElmGhost.contentEditable = false; // Hides IE move layer cursor
              selectedElmGhost.unSelectabe = true;
              dom.setStyles(selectedElmGhost, {
                left: selectedElmX,
                top: selectedElmY,
                margin: 0
              });

              selectedElmGhost.removeAttribute('data-mce-selected');
              rootElement.appendChild(selectedElmGhost);

              dom.bind(editableDoc, 'mousemove', resizeGhostElement);
              dom.bind(editableDoc, 'mouseup', endGhostResize);

              if (rootDocument != editableDoc) {
                dom.bind(rootDocument, 'mousemove', resizeGhostElement);
                dom.bind(rootDocument, 'mouseup', endGhostResize);
              }

              resizeHelper = dom.add(rootElement, 'div', {
                'class': 'mce-resize-helper',
                'data-mce-bogus': 'all'
              }, startW + ' &times; ' + startH);
            }

            if (mouseDownHandleName) {
              // Drag started by IE native resizestart
              if (name == mouseDownHandleName) {
                startDrag(mouseDownEvent);
              }

              return;
            }

            // Get existing or render resize handle
            handleElm = dom.get('mceResizeHandle' + name);
            if (handleElm) {
              dom.remove(handleElm);
            }

            handleElm = dom.add(rootElement, 'div', {
              id: 'mceResizeHandle' + name,
              'data-mce-bogus': 'all',
              'class': 'mce-resizehandle',
              unselectable: true,
              style: 'cursor:' + name + '-resize; margin:0; padding:0'
            });

            // Hides IE move layer cursor
            // If we set it on Chrome we get this wounderful bug: #6725
            if (Env.ie) {
              handleElm.contentEditable = false;
            }

            dom.bind(handleElm, 'mousedown', function (e) {
              e.stopImmediatePropagation();
              e.preventDefault();
              startDrag(e);
            });

            handle.elm = handleElm;

            // Position element
            dom.setStyles(handleElm, {
              left: (targetWidth * handle[0] + selectedElmX) - (handleElm.offsetWidth / 2),
              top: (targetHeight * handle[1] + selectedElmY) - (handleElm.offsetHeight / 2)
            });
          });
        } else {
          hideResizeRect();
        }

        selectedElm.setAttribute('data-mce-selected', '1');
      }

      function hideResizeRect() {
        var name, handleElm;

        unbindResizeHandleEvents();

        if (selectedElm) {
          selectedElm.removeAttribute('data-mce-selected');
        }

        for (name in resizeHandles) {
          handleElm = dom.get('mceResizeHandle' + name);
          if (handleElm) {
            dom.unbind(handleElm);
            dom.remove(handleElm);
          }
        }
      }

      function updateResizeRect(e) {
        var startElm, controlElm;

        function isChildOrEqual(node, parent) {
          if (node) {
            do {
              if (node === parent) {
                return true;
              }
            } while ((node = node.parentNode));
          }
        }

        // Ignore all events while resizing or if the editor instance was removed
        if (resizeStarted || editor.removed) {
          return;
        }

        // Remove data-mce-selected from all elements since they might have been copied using Ctrl+c/v
        each(dom.select('img[data-mce-selected],hr[data-mce-selected]'), function (img) {
          img.removeAttribute('data-mce-selected');
        });

        controlElm = e.type == 'mousedown' ? e.target : selection.getNode();
        controlElm = dom.$(controlElm).closest(isIE ? 'table' : 'table,img,hr')[0];

        if (isChildOrEqual(controlElm, rootElement)) {
          disableGeckoResize();
          startElm = selection.getStart(true);

          if (isChildOrEqual(startElm, controlElm) && isChildOrEqual(selection.getEnd(true), controlElm)) {
            if (!isIE || (controlElm != startElm && startElm.nodeName !== 'IMG')) {
              showResizeRect(controlElm);
              return;
            }
          }
        }

        hideResizeRect();
      }

      function attachEvent(elm, name, func) {
        if (elm && elm.attachEvent) {
          elm.attachEvent('on' + name, func);
        }
      }

      function detachEvent(elm, name, func) {
        if (elm && elm.detachEvent) {
          elm.detachEvent('on' + name, func);
        }
      }

      function resizeNativeStart(e) {
        var target = e.srcElement, pos, name, corner, cornerX, cornerY, relativeX, relativeY;

        pos = target.getBoundingClientRect();
        relativeX = lastMouseDownEvent.clientX - pos.left;
        relativeY = lastMouseDownEvent.clientY - pos.top;

        // Figure out what corner we are draging on
        for (name in resizeHandles) {
          corner = resizeHandles[name];

          cornerX = target.offsetWidth * corner[0];
          cornerY = target.offsetHeight * corner[1];

          if (abs(cornerX - relativeX) < 8 && abs(cornerY - relativeY) < 8) {
            selectedHandle = corner;
            break;
          }
        }

        // Remove native selection and let the magic begin
        resizeStarted = true;
        editor.fire('ObjectResizeStart', {
          target: selectedElm,
          width: selectedElm.clientWidth,
          height: selectedElm.clientHeight
        });
        editor.getDoc().selection.empty();
        showResizeRect(target, name, lastMouseDownEvent);
      }

      function preventDefault(e) {
        if (e.preventDefault) {
          e.preventDefault();
        } else {
          e.returnValue = false; // IE
        }
      }

      function isWithinContentEditableFalse(elm) {
        return isContentEditableFalse(getContentEditableRoot(editor.getBody(), elm));
      }

      function nativeControlSelect(e) {
        var target = e.srcElement;

        if (isWithinContentEditableFalse(target)) {
          preventDefault(e);
          return;
        }

        if (target != selectedElm) {
          editor.fire('ObjectSelected', { target: target });
          detachResizeStartListener();

          if (target.id.indexOf('mceResizeHandle') === 0) {
            e.returnValue = false;
            return;
          }

          if (target.nodeName == 'IMG' || target.nodeName == 'TABLE') {
            hideResizeRect();
            selectedElm = target;
            attachEvent(target, 'resizestart', resizeNativeStart);
          }
        }
      }

      function detachResizeStartListener() {
        detachEvent(selectedElm, 'resizestart', resizeNativeStart);
      }

      function unbindResizeHandleEvents() {
        for (var name in resizeHandles) {
          var handle = resizeHandles[name];

          if (handle.elm) {
            dom.unbind(handle.elm);
            delete handle.elm;
          }
        }
      }

      function disableGeckoResize() {
        try {
          // Disable object resizing on Gecko
          editor.getDoc().execCommand('enableObjectResizing', false, false);
        } catch (ex) {
          // Ignore
        }
      }

      function controlSelect(elm) {
        var ctrlRng;

        if (!isIE) {
          return;
        }

        ctrlRng = editableDoc.body.createControlRange();

        try {
          ctrlRng.addElement(elm);
          ctrlRng.select();
          return true;
        } catch (ex) {
          // Ignore since the element can't be control selected for example a P tag
        }
      }

      editor.on('init', function () {
        if (isIE) {
          // Hide the resize rect on resize and reselect the image
          editor.on('ObjectResized', function (e) {
            if (e.target.nodeName != 'TABLE') {
              hideResizeRect();
              controlSelect(e.target);
            }
          });

          attachEvent(rootElement, 'controlselect', nativeControlSelect);

          editor.on('mousedown', function (e) {
            lastMouseDownEvent = e;
          });
        } else {
          disableGeckoResize();

          // Sniff sniff, hard to feature detect this stuff
          if (Env.ie >= 11) {
            // Needs to be mousedown for drag/drop to work on IE 11
            // Needs to be click on Edge to properly select images
            editor.on('mousedown click', function (e) {
              var target = e.target, nodeName = target.nodeName;

              if (!resizeStarted && /^(TABLE|IMG|HR)$/.test(nodeName) && !isWithinContentEditableFalse(target)) {
                editor.selection.select(target, nodeName == 'TABLE');

                // Only fire once since nodeChange is expensive
                if (e.type == 'mousedown') {
                  editor.nodeChanged();
                }
              }
            });

            editor.dom.bind(rootElement, 'mscontrolselect', function (e) {
              function delayedSelect(node) {
                Delay.setEditorTimeout(editor, function () {
                  editor.selection.select(node);
                });
              }

              if (isWithinContentEditableFalse(e.target)) {
                e.preventDefault();
                delayedSelect(e.target);
                return;
              }

              if (/^(TABLE|IMG|HR)$/.test(e.target.nodeName)) {
                e.preventDefault();

                // This moves the selection from being a control selection to a text like selection like in WebKit #6753
                // TODO: Fix this the day IE works like other browsers without this nasty native ugly control selections.
                if (e.target.tagName == 'IMG') {
                  delayedSelect(e.target);
                }
              }
            });
          }
        }

        var throttledUpdateResizeRect = Delay.throttle(function (e) {
          if (!editor.composing) {
            updateResizeRect(e);
          }
        });

        editor.on('nodechange ResizeEditor ResizeWindow drop', throttledUpdateResizeRect);

        // Update resize rect while typing in a table
        editor.on('keyup compositionend', function (e) {
          // Don't update the resize rect while composing since it blows away the IME see: #2710
          if (selectedElm && selectedElm.nodeName == "TABLE") {
            throttledUpdateResizeRect(e);
          }
        });

        editor.on('hide blur', hideResizeRect);

        // Hide rect on focusout since it would float on top of windows otherwise
        //editor.on('focusout', hideResizeRect);
      });

      editor.on('remove', unbindResizeHandleEvents);

      function destroy() {
        selectedElm = selectedElmGhost = null;

        if (isIE) {
          detachResizeStartListener();
          detachEvent(rootElement, 'controlselect', nativeControlSelect);
        }
      }

      return {
        isResizable: isResizable,
        showResizeRect: showResizeRect,
        hideResizeRect: hideResizeRect,
        updateResizeRect: updateResizeRect,
        controlSelect: controlSelect,
        destroy: destroy
      };
    };
  }
);

/**
 * Fun.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Functional utility class.
 *
 * @private
 * @class tinymce.util.Fun
 */
define(
  'tinymce.core.util.Fun',
  [
  ],
  function () {
    var slice = [].slice;

    function constant(value) {
      return function () {
        return value;
      };
    }

    function negate(predicate) {
      return function (x) {
        return !predicate(x);
      };
    }

    function compose(f, g) {
      return function (x) {
        return f(g(x));
      };
    }

    function or() {
      var args = slice.call(arguments);

      return function (x) {
        for (var i = 0; i < args.length; i++) {
          if (args[i](x)) {
            return true;
          }
        }

        return false;
      };
    }

    function and() {
      var args = slice.call(arguments);

      return function (x) {
        for (var i = 0; i < args.length; i++) {
          if (!args[i](x)) {
            return false;
          }
        }

        return true;
      };
    }

    function curry(fn) {
      var args = slice.call(arguments);

      if (args.length - 1 >= fn.length) {
        return fn.apply(this, args.slice(1));
      }

      return function () {
        var tempArgs = args.concat([].slice.call(arguments));
        return curry.apply(this, tempArgs);
      };
    }

    function noop() {
    }

    return {
      constant: constant,
      negate: negate,
      and: and,
      or: or,
      curry: curry,
      compose: compose,
      noop: noop
    };
  }
);
/**
 * CaretCandidate.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module contains logic for handling caret candidates. A caret candidate is
 * for example text nodes, images, input elements, cE=false elements etc.
 *
 * @private
 * @class tinymce.caret.CaretCandidate
 */
define(
  'tinymce.core.caret.CaretCandidate',
  [
    "tinymce.core.dom.NodeType",
    "tinymce.core.util.Arr",
    "tinymce.core.caret.CaretContainer"
  ],
  function (NodeType, Arr, CaretContainer) {
    var isContentEditableTrue = NodeType.isContentEditableTrue,
      isContentEditableFalse = NodeType.isContentEditableFalse,
      isBr = NodeType.isBr,
      isText = NodeType.isText,
      isInvalidTextElement = NodeType.matchNodeNames('script style textarea'),
      isAtomicInline = NodeType.matchNodeNames('img input textarea hr iframe video audio object'),
      isTable = NodeType.matchNodeNames('table'),
      isCaretContainer = CaretContainer.isCaretContainer;

    function isCaretCandidate(node) {
      if (isCaretContainer(node)) {
        return false;
      }

      if (isText(node)) {
        if (isInvalidTextElement(node.parentNode)) {
          return false;
        }

        return true;
      }

      return isAtomicInline(node) || isBr(node) || isTable(node) || isContentEditableFalse(node);
    }

    function isInEditable(node, rootNode) {
      for (node = node.parentNode; node && node != rootNode; node = node.parentNode) {
        if (isContentEditableFalse(node)) {
          return false;
        }

        if (isContentEditableTrue(node)) {
          return true;
        }
      }

      return true;
    }

    function isAtomicContentEditableFalse(node) {
      if (!isContentEditableFalse(node)) {
        return false;
      }

      return Arr.reduce(node.getElementsByTagName('*'), function (result, elm) {
        return result || isContentEditableTrue(elm);
      }, false) !== true;
    }

    function isAtomic(node) {
      return isAtomicInline(node) || isAtomicContentEditableFalse(node);
    }

    function isEditableCaretCandidate(node, rootNode) {
      return isCaretCandidate(node) && isInEditable(node, rootNode);
    }

    return {
      isCaretCandidate: isCaretCandidate,
      isInEditable: isInEditable,
      isAtomic: isAtomic,
      isEditableCaretCandidate: isEditableCaretCandidate
    };
  }
);
/**
 * ClientRect.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility functions for working with client rects.
 *
 * @private
 * @class tinymce.geom.ClientRect
 */
define(
  'tinymce.core.geom.ClientRect',
  [
  ],
  function () {
    var round = Math.round;

    function clone(rect) {
      if (!rect) {
        return { left: 0, top: 0, bottom: 0, right: 0, width: 0, height: 0 };
      }

      return {
        left: round(rect.left),
        top: round(rect.top),
        bottom: round(rect.bottom),
        right: round(rect.right),
        width: round(rect.width),
        height: round(rect.height)
      };
    }

    function collapse(clientRect, toStart) {
      clientRect = clone(clientRect);

      if (toStart) {
        clientRect.right = clientRect.left;
      } else {
        clientRect.left = clientRect.left + clientRect.width;
        clientRect.right = clientRect.left;
      }

      clientRect.width = 0;

      return clientRect;
    }

    function isEqual(rect1, rect2) {
      return (
        rect1.left === rect2.left &&
        rect1.top === rect2.top &&
        rect1.bottom === rect2.bottom &&
        rect1.right === rect2.right
      );
    }

    function isValidOverflow(overflowY, clientRect1, clientRect2) {
      return overflowY >= 0 && overflowY <= Math.min(clientRect1.height, clientRect2.height) / 2;

    }

    function isAbove(clientRect1, clientRect2) {
      if ((clientRect1.bottom - clientRect1.height / 2) < clientRect2.top) {
        return true;
      }

      if (clientRect1.top > clientRect2.bottom) {
        return false;
      }

      return isValidOverflow(clientRect2.top - clientRect1.bottom, clientRect1, clientRect2);
    }

    function isBelow(clientRect1, clientRect2) {
      if (clientRect1.top > clientRect2.bottom) {
        return true;
      }

      if (clientRect1.bottom < clientRect2.top) {
        return false;
      }

      return isValidOverflow(clientRect2.bottom - clientRect1.top, clientRect1, clientRect2);
    }

    function isLeft(clientRect1, clientRect2) {
      return clientRect1.left < clientRect2.left;
    }

    function isRight(clientRect1, clientRect2) {
      return clientRect1.right > clientRect2.right;
    }

    function compare(clientRect1, clientRect2) {
      if (isAbove(clientRect1, clientRect2)) {
        return -1;
      }

      if (isBelow(clientRect1, clientRect2)) {
        return 1;
      }

      if (isLeft(clientRect1, clientRect2)) {
        return -1;
      }

      if (isRight(clientRect1, clientRect2)) {
        return 1;
      }

      return 0;
    }

    function containsXY(clientRect, clientX, clientY) {
      return (
        clientX >= clientRect.left &&
        clientX <= clientRect.right &&
        clientY >= clientRect.top &&
        clientY <= clientRect.bottom
      );
    }

    return {
      clone: clone,
      collapse: collapse,
      isEqual: isEqual,
      isAbove: isAbove,
      isBelow: isBelow,
      isLeft: isLeft,
      isRight: isRight,
      compare: compare,
      containsXY: containsXY
    };
  }
);

/**
 * ExtendingChar.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class contains logic for detecting extending characters.
 *
 * @private
 * @class tinymce.text.ExtendingChar
 * @example
 * var isExtending = ExtendingChar.isExtendingChar('a');
 */
define(
  'tinymce.core.text.ExtendingChar',
  [
  ],
  function () {
    // Generated from: http://www.unicode.org/Public/UNIDATA/DerivedCoreProperties.txt
    // Only includes the characters in that fit into UCS-2 16 bit
    var extendingChars = new RegExp(
      "[\u0300-\u036F\u0483-\u0487\u0488-\u0489\u0591-\u05BD\u05BF\u05C1-\u05C2\u05C4-\u05C5\u05C7\u0610-\u061A" +
      "\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7-\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0" +
      "\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08E3-\u0902\u093A\u093C" +
      "\u0941-\u0948\u094D\u0951-\u0957\u0962-\u0963\u0981\u09BC\u09BE\u09C1-\u09C4\u09CD\u09D7\u09E2-\u09E3" +
      "\u0A01-\u0A02\u0A3C\u0A41-\u0A42\u0A47-\u0A48\u0A4B-\u0A4D\u0A51\u0A70-\u0A71\u0A75\u0A81-\u0A82\u0ABC" +
      "\u0AC1-\u0AC5\u0AC7-\u0AC8\u0ACD\u0AE2-\u0AE3\u0B01\u0B3C\u0B3E\u0B3F\u0B41-\u0B44\u0B4D\u0B56\u0B57" +
      "\u0B62-\u0B63\u0B82\u0BBE\u0BC0\u0BCD\u0BD7\u0C00\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55-\u0C56" +
      "\u0C62-\u0C63\u0C81\u0CBC\u0CBF\u0CC2\u0CC6\u0CCC-\u0CCD\u0CD5-\u0CD6\u0CE2-\u0CE3\u0D01\u0D3E\u0D41-\u0D44" +
      "\u0D4D\u0D57\u0D62-\u0D63\u0DCA\u0DCF\u0DD2-\u0DD4\u0DD6\u0DDF\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EB9" +
      "\u0EBB-\u0EBC\u0EC8-\u0ECD\u0F18-\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86-\u0F87\u0F8D-\u0F97" +
      "\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039-\u103A\u103D-\u103E\u1058-\u1059\u105E-\u1060\u1071-\u1074" +
      "\u1082\u1085-\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752-\u1753\u1772-\u1773\u17B4-\u17B5" +
      "\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u18A9\u1920-\u1922\u1927-\u1928\u1932\u1939-\u193B\u1A17-\u1A18" +
      "\u1A1B\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1AB0-\u1ABD\u1ABE\u1B00-\u1B03\u1B34" +
      "\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80-\u1B81\u1BA2-\u1BA5\u1BA8-\u1BA9\u1BAB-\u1BAD\u1BE6\u1BE8-\u1BE9" +
      "\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1CF4\u1CF8-\u1CF9" +
      "\u1DC0-\u1DF5\u1DFC-\u1DFF\u200C-\u200D\u20D0-\u20DC\u20DD-\u20E0\u20E1\u20E2-\u20E4\u20E5-\u20F0\u2CEF-\u2CF1" +
      "\u2D7F\u2DE0-\u2DFF\u302A-\u302D\u302E-\u302F\u3099-\u309A\uA66F\uA670-\uA672\uA674-\uA67D\uA69E-\uA69F\uA6F0-\uA6F1" +
      "\uA802\uA806\uA80B\uA825-\uA826\uA8C4\uA8E0-\uA8F1\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC" +
      "\uA9E5\uAA29-\uAA2E\uAA31-\uAA32\uAA35-\uAA36\uAA43\uAA4C\uAA7C\uAAB0\uAAB2-\uAAB4\uAAB7-\uAAB8\uAABE-\uAABF\uAAC1" +
      "\uAAEC-\uAAED\uAAF6\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFF9E-\uFF9F]"
    );

    function isExtendingChar(ch) {
      return typeof ch == "string" && ch.charCodeAt(0) >= 768 && extendingChars.test(ch);
    }

    return {
      isExtendingChar: isExtendingChar
    };
  }
);
/**
 * CaretPosition.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module contains logic for creating caret positions within a document a caretposition
 * is similar to a DOMRange object but it doesn't have two endpoints and is also more lightweight
 * since it's now updated live when the DOM changes.
 *
 * @private
 * @class tinymce.caret.CaretPosition
 * @example
 * var caretPos1 = new CaretPosition(container, offset);
 * var caretPos2 = CaretPosition.fromRangeStart(someRange);
 */
define(
  'tinymce.core.caret.CaretPosition',
  [
    "tinymce.core.util.Fun",
    "tinymce.core.dom.NodeType",
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.dom.RangeUtils",
    "tinymce.core.caret.CaretCandidate",
    "tinymce.core.geom.ClientRect",
    "tinymce.core.text.ExtendingChar"
  ],
  function (Fun, NodeType, DOMUtils, RangeUtils, CaretCandidate, ClientRect, ExtendingChar) {
    var isElement = NodeType.isElement,
      isCaretCandidate = CaretCandidate.isCaretCandidate,
      isBlock = NodeType.matchStyleValues('display', 'block table'),
      isFloated = NodeType.matchStyleValues('float', 'left right'),
      isValidElementCaretCandidate = Fun.and(isElement, isCaretCandidate, Fun.negate(isFloated)),
      isNotPre = Fun.negate(NodeType.matchStyleValues('white-space', 'pre pre-line pre-wrap')),
      isText = NodeType.isText,
      isBr = NodeType.isBr,
      nodeIndex = DOMUtils.nodeIndex,
      resolveIndex = RangeUtils.getNode;

    function createRange(doc) {
      return "createRange" in doc ? doc.createRange() : DOMUtils.DOM.createRng();
    }

    function isWhiteSpace(chr) {
      return chr && /[\r\n\t ]/.test(chr);
    }

    function isHiddenWhiteSpaceRange(range) {
      var container = range.startContainer,
        offset = range.startOffset,
        text;

      if (isWhiteSpace(range.toString()) && isNotPre(container.parentNode)) {
        text = container.data;

        if (isWhiteSpace(text[offset - 1]) || isWhiteSpace(text[offset + 1])) {
          return true;
        }
      }

      return false;
    }

    function getCaretPositionClientRects(caretPosition) {
      var clientRects = [], beforeNode, node;

      // Hack for older WebKit versions that doesn't
      // support getBoundingClientRect on BR elements
      function getBrClientRect(brNode) {
        var doc = brNode.ownerDocument,
          rng = createRange(doc),
          nbsp = doc.createTextNode('\u00a0'),
          parentNode = brNode.parentNode,
          clientRect;

        parentNode.insertBefore(nbsp, brNode);
        rng.setStart(nbsp, 0);
        rng.setEnd(nbsp, 1);
        clientRect = ClientRect.clone(rng.getBoundingClientRect());
        parentNode.removeChild(nbsp);

        return clientRect;
      }

      function getBoundingClientRect(item) {
        var clientRect, clientRects;

        clientRects = item.getClientRects();
        if (clientRects.length > 0) {
          clientRect = ClientRect.clone(clientRects[0]);
        } else {
          clientRect = ClientRect.clone(item.getBoundingClientRect());
        }

        if (isBr(item) && clientRect.left === 0) {
          return getBrClientRect(item);
        }

        return clientRect;
      }

      function collapseAndInflateWidth(clientRect, toStart) {
        clientRect = ClientRect.collapse(clientRect, toStart);
        clientRect.width = 1;
        clientRect.right = clientRect.left + 1;

        return clientRect;
      }

      function addUniqueAndValidRect(clientRect) {
        if (clientRect.height === 0) {
          return;
        }

        if (clientRects.length > 0) {
          if (ClientRect.isEqual(clientRect, clientRects[clientRects.length - 1])) {
            return;
          }
        }

        clientRects.push(clientRect);
      }

      function addCharacterOffset(container, offset) {
        var range = createRange(container.ownerDocument);

        if (offset < container.data.length) {
          if (ExtendingChar.isExtendingChar(container.data[offset])) {
            return clientRects;
          }

          // WebKit returns two client rects for a position after an extending
          // character a\uxxx|b so expand on "b" and collapse to start of "b" box
          if (ExtendingChar.isExtendingChar(container.data[offset - 1])) {
            range.setStart(container, offset);
            range.setEnd(container, offset + 1);

            if (!isHiddenWhiteSpaceRange(range)) {
              addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(range), false));
              return clientRects;
            }
          }
        }

        if (offset > 0) {
          range.setStart(container, offset - 1);
          range.setEnd(container, offset);

          if (!isHiddenWhiteSpaceRange(range)) {
            addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(range), false));
          }
        }

        if (offset < container.data.length) {
          range.setStart(container, offset);
          range.setEnd(container, offset + 1);

          if (!isHiddenWhiteSpaceRange(range)) {
            addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(range), true));
          }
        }
      }

      if (isText(caretPosition.container())) {
        addCharacterOffset(caretPosition.container(), caretPosition.offset());
        return clientRects;
      }

      if (isElement(caretPosition.container())) {
        if (caretPosition.isAtEnd()) {
          node = resolveIndex(caretPosition.container(), caretPosition.offset());
          if (isText(node)) {
            addCharacterOffset(node, node.data.length);
          }

          if (isValidElementCaretCandidate(node) && !isBr(node)) {
            addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(node), false));
          }
        } else {
          node = resolveIndex(caretPosition.container(), caretPosition.offset());
          if (isText(node)) {
            addCharacterOffset(node, 0);
          }

          if (isValidElementCaretCandidate(node) && caretPosition.isAtEnd()) {
            addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(node), false));
            return clientRects;
          }

          beforeNode = resolveIndex(caretPosition.container(), caretPosition.offset() - 1);
          if (isValidElementCaretCandidate(beforeNode) && !isBr(beforeNode)) {
            if (isBlock(beforeNode) || isBlock(node) || !isValidElementCaretCandidate(node)) {
              addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(beforeNode), false));
            }
          }

          if (isValidElementCaretCandidate(node)) {
            addUniqueAndValidRect(collapseAndInflateWidth(getBoundingClientRect(node), true));
          }
        }
      }

      return clientRects;
    }

    /**
     * Represents a location within the document by a container and an offset.
     *
     * @constructor
     * @param {Node} container Container node.
     * @param {Number} offset Offset within that container node.
     * @param {Array} clientRects Optional client rects array for the position.
     */
    function CaretPosition(container, offset, clientRects) {
      function isAtStart() {
        if (isText(container)) {
          return offset === 0;
        }

        return offset === 0;
      }

      function isAtEnd() {
        if (isText(container)) {
          return offset >= container.data.length;
        }

        return offset >= container.childNodes.length;
      }

      function toRange() {
        var range;

        range = createRange(container.ownerDocument);
        range.setStart(container, offset);
        range.setEnd(container, offset);

        return range;
      }

      function getClientRects() {
        if (!clientRects) {
          clientRects = getCaretPositionClientRects(new CaretPosition(container, offset));
        }

        return clientRects;
      }

      function isVisible() {
        return getClientRects().length > 0;
      }

      function isEqual(caretPosition) {
        return caretPosition && container === caretPosition.container() && offset === caretPosition.offset();
      }

      function getNode(before) {
        return resolveIndex(container, before ? offset - 1 : offset);
      }

      return {
        /**
         * Returns the container node.
         *
         * @method container
         * @return {Node} Container node.
         */
        container: Fun.constant(container),

        /**
         * Returns the offset within the container node.
         *
         * @method offset
         * @return {Number} Offset within the container node.
         */
        offset: Fun.constant(offset),

        /**
         * Returns a range out of a the caret position.
         *
         * @method toRange
         * @return {DOMRange} range for the caret position.
         */
        toRange: toRange,

        /**
         * Returns the client rects for the caret position. Might be multiple rects between
         * block elements.
         *
         * @method getClientRects
         * @return {Array} Array of client rects.
         */
        getClientRects: getClientRects,

        /**
         * Returns true if the caret location is visible/displayed on screen.
         *
         * @method isVisible
         * @return {Boolean} true/false if the position is visible or not.
         */
        isVisible: isVisible,

        /**
         * Returns true if the caret location is at the beginning of text node or container.
         *
         * @method isVisible
         * @return {Boolean} true/false if the position is at the beginning.
         */
        isAtStart: isAtStart,

        /**
         * Returns true if the caret location is at the end of text node or container.
         *
         * @method isVisible
         * @return {Boolean} true/false if the position is at the end.
         */
        isAtEnd: isAtEnd,

        /**
         * Compares the caret position to another caret position. This will only compare the
         * container and offset not it's visual position.
         *
         * @method isEqual
         * @param {tinymce.caret.CaretPosition} caretPosition Caret position to compare with.
         * @return {Boolean} true if the caret positions are equal.
         */
        isEqual: isEqual,

        /**
         * Returns the closest resolved node from a node index. That means if you have an offset after the
         * last node in a container it will return that last node.
         *
         * @method getNode
         * @return {Node} Node that is closest to the index.
         */
        getNode: getNode
      };
    }

    /**
     * Creates a caret position from the start of a range.
     *
     * @method fromRangeStart
     * @param {DOMRange} range DOM Range to create caret position from.
     * @return {tinymce.caret.CaretPosition} Caret position from the start of DOM range.
     */
    CaretPosition.fromRangeStart = function (range) {
      return new CaretPosition(range.startContainer, range.startOffset);
    };

    /**
     * Creates a caret position from the end of a range.
     *
     * @method fromRangeEnd
     * @param {DOMRange} range DOM Range to create caret position from.
     * @return {tinymce.caret.CaretPosition} Caret position from the end of DOM range.
     */
    CaretPosition.fromRangeEnd = function (range) {
      return new CaretPosition(range.endContainer, range.endOffset);
    };

    /**
     * Creates a caret position from a node and places the offset after it.
     *
     * @method after
     * @param {Node} node Node to get caret position from.
     * @return {tinymce.caret.CaretPosition} Caret position from the node.
     */
    CaretPosition.after = function (node) {
      return new CaretPosition(node.parentNode, nodeIndex(node) + 1);
    };

    /**
     * Creates a caret position from a node and places the offset before it.
     *
     * @method before
     * @param {Node} node Node to get caret position from.
     * @return {tinymce.caret.CaretPosition} Caret position from the node.
     */
    CaretPosition.before = function (node) {
      return new CaretPosition(node.parentNode, nodeIndex(node));
    };

    CaretPosition.isAtStart = function (pos) {
      return pos ? pos.isAtStart() : false;
    };

    CaretPosition.isAtEnd = function (pos) {
      return pos ? pos.isAtEnd() : false;
    };

    CaretPosition.isTextPosition = function (pos) {
      return pos ? NodeType.isText(pos.container()) : false;
    };

    return CaretPosition;
  }
);
/**
 * CaretBookmark.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module creates or resolves xpath like string representation of a CaretPositions.
 *
 * The format is a / separated list of chunks with:
 * <element|text()>[index|after|before]
 *
 * For example:
 *  p[0]/b[0]/text()[0],1 = <p><b>a|c</b></p>
 *  p[0]/img[0],before = <p>|<img></p>
 *  p[0]/img[0],after = <p><img>|</p>
 *
 * @private
 * @static
 * @class tinymce.caret.CaretBookmark
 * @example
 * var bookmark = CaretBookmark.create(rootElm, CaretPosition.before(rootElm.firstChild));
 * var caretPosition = CaretBookmark.resolve(bookmark);
 */
define(
  'tinymce.core.caret.CaretBookmark',
  [
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.util.Fun',
    'tinymce.core.util.Arr',
    'tinymce.core.caret.CaretPosition'
  ],
  function (NodeType, DomUtils, Fun, Arr, CaretPosition) {
    var isText = NodeType.isText,
      isBogus = NodeType.isBogus,
      nodeIndex = DomUtils.nodeIndex;

    function normalizedParent(node) {
      var parentNode = node.parentNode;

      if (isBogus(parentNode)) {
        return normalizedParent(parentNode);
      }

      return parentNode;
    }

    function getChildNodes(node) {
      if (!node) {
        return [];
      }

      return Arr.reduce(node.childNodes, function (result, node) {
        if (isBogus(node) && node.nodeName != 'BR') {
          result = result.concat(getChildNodes(node));
        } else {
          result.push(node);
        }

        return result;
      }, []);
    }

    function normalizedTextOffset(textNode, offset) {
      while ((textNode = textNode.previousSibling)) {
        if (!isText(textNode)) {
          break;
        }

        offset += textNode.data.length;
      }

      return offset;
    }

    function equal(targetValue) {
      return function (value) {
        return targetValue === value;
      };
    }

    function normalizedNodeIndex(node) {
      var nodes, index, numTextFragments;

      nodes = getChildNodes(normalizedParent(node));
      index = Arr.findIndex(nodes, equal(node), node);
      nodes = nodes.slice(0, index + 1);
      numTextFragments = Arr.reduce(nodes, function (result, node, i) {
        if (isText(node) && isText(nodes[i - 1])) {
          result++;
        }

        return result;
      }, 0);

      nodes = Arr.filter(nodes, NodeType.matchNodeNames(node.nodeName));
      index = Arr.findIndex(nodes, equal(node), node);

      return index - numTextFragments;
    }

    function createPathItem(node) {
      var name;

      if (isText(node)) {
        name = 'text()';
      } else {
        name = node.nodeName.toLowerCase();
      }

      return name + '[' + normalizedNodeIndex(node) + ']';
    }

    function parentsUntil(rootNode, node, predicate) {
      var parents = [];

      for (node = node.parentNode; node != rootNode; node = node.parentNode) {
        if (predicate && predicate(node)) {
          break;
        }

        parents.push(node);
      }

      return parents;
    }

    function create(rootNode, caretPosition) {
      var container, offset, path = [],
        outputOffset, childNodes, parents;

      container = caretPosition.container();
      offset = caretPosition.offset();

      if (isText(container)) {
        outputOffset = normalizedTextOffset(container, offset);
      } else {
        childNodes = container.childNodes;
        if (offset >= childNodes.length) {
          outputOffset = 'after';
          offset = childNodes.length - 1;
        } else {
          outputOffset = 'before';
        }

        container = childNodes[offset];
      }

      path.push(createPathItem(container));
      parents = parentsUntil(rootNode, container);
      parents = Arr.filter(parents, Fun.negate(NodeType.isBogus));
      path = path.concat(Arr.map(parents, function (node) {
        return createPathItem(node);
      }));

      return path.reverse().join('/') + ',' + outputOffset;
    }

    function resolvePathItem(node, name, index) {
      var nodes = getChildNodes(node);

      nodes = Arr.filter(nodes, function (node, index) {
        return !isText(node) || !isText(nodes[index - 1]);
      });

      nodes = Arr.filter(nodes, NodeType.matchNodeNames(name));
      return nodes[index];
    }

    function findTextPosition(container, offset) {
      var node = container, targetOffset = 0, dataLen;

      while (isText(node)) {
        dataLen = node.data.length;

        if (offset >= targetOffset && offset <= targetOffset + dataLen) {
          container = node;
          offset = offset - targetOffset;
          break;
        }

        if (!isText(node.nextSibling)) {
          container = node;
          offset = dataLen;
          break;
        }

        targetOffset += dataLen;
        node = node.nextSibling;
      }

      if (offset > container.data.length) {
        offset = container.data.length;
      }

      return new CaretPosition(container, offset);
    }

    function resolve(rootNode, path) {
      var parts, container, offset;

      if (!path) {
        return null;
      }

      parts = path.split(',');
      path = parts[0].split('/');
      offset = parts.length > 1 ? parts[1] : 'before';

      container = Arr.reduce(path, function (result, value) {
        value = /([\w\-\(\)]+)\[([0-9]+)\]/.exec(value);
        if (!value) {
          return null;
        }

        if (value[1] === 'text()') {
          value[1] = '#text';
        }

        return resolvePathItem(result, value[1], parseInt(value[2], 10));
      }, rootNode);

      if (!container) {
        return null;
      }

      if (!isText(container)) {
        if (offset === 'after') {
          offset = nodeIndex(container) + 1;
        } else {
          offset = nodeIndex(container);
        }

        return new CaretPosition(container.parentNode, offset);
      }

      return findTextPosition(container, parseInt(offset, 10));
    }

    return {
      /**
       * Create a xpath bookmark location for the specified caret position.
       *
       * @method create
       * @param {Node} rootNode Root node to create bookmark within.
       * @param {tinymce.caret.CaretPosition} caretPosition Caret position within the root node.
       * @return {String} String xpath like location of caret position.
       */
      create: create,

      /**
       * Resolves a xpath like bookmark location to the a caret position.
       *
       * @method resolve
       * @param {Node} rootNode Root node to resolve xpath bookmark within.
       * @param {String} bookmark Bookmark string to resolve.
       * @return {tinymce.caret.CaretPosition} Caret position resolved from xpath like bookmark.
       */
      resolve: resolve
    };
  }
);
/**
 * BookmarkManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles selection bookmarks.
 *
 * @class tinymce.dom.BookmarkManager
 */
define(
  'tinymce.core.dom.BookmarkManager',
  [
    'tinymce.core.caret.CaretBookmark',
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.Env',
    'tinymce.core.text.Zwsp',
    'tinymce.core.util.Tools'
  ],
  function (CaretBookmark, CaretContainer, CaretPosition, NodeType, RangeUtils, Env, Zwsp, Tools) {
    var isContentEditableFalse = NodeType.isContentEditableFalse;

    var getNormalizedTextOffset = function (container, offset) {
      var node, trimmedOffset;

      trimmedOffset = Zwsp.trim(container.data.slice(0, offset)).length;
      for (node = container.previousSibling; node && node.nodeType === 3; node = node.previousSibling) {
        trimmedOffset += Zwsp.trim(node.data).length;
      }

      return trimmedOffset;
    };

    /**
     * Constructs a new BookmarkManager instance for a specific selection instance.
     *
     * @constructor
     * @method BookmarkManager
     * @param {tinymce.dom.Selection} selection Selection instance to handle bookmarks for.
     */
    function BookmarkManager(selection) {
      var dom = selection.dom;

      /**
       * Returns a bookmark location for the current selection. This bookmark object
       * can then be used to restore the selection after some content modification to the document.
       *
       * @method getBookmark
       * @param {Number} type Optional state if the bookmark should be simple or not. Default is complex.
       * @param {Boolean} normalized Optional state that enables you to get a position that it would be after normalization.
       * @return {Object} Bookmark object, use moveToBookmark with this object to restore the selection.
       * @example
       * // Stores a bookmark of the current selection
       * var bm = tinymce.activeEditor.selection.getBookmark();
       *
       * tinymce.activeEditor.setContent(tinymce.activeEditor.getContent() + 'Some new content');
       *
       * // Restore the selection bookmark
       * tinymce.activeEditor.selection.moveToBookmark(bm);
       */
      this.getBookmark = function (type, normalized) {
        var rng, rng2, id, collapsed, name, element, chr = '&#xFEFF;', styles;

        function findIndex(name, element) {
          var count = 0;

          Tools.each(dom.select(name), function (node) {
            if (node.getAttribute('data-mce-bogus') === 'all') {
              return;
            }

            if (node == element) {
              return false;
            }

            count++;
          });

          return count;
        }

        function normalizeTableCellSelection(rng) {
          function moveEndPoint(start) {
            var container, offset, childNodes, prefix = start ? 'start' : 'end';

            container = rng[prefix + 'Container'];
            offset = rng[prefix + 'Offset'];

            if (container.nodeType == 1 && container.nodeName == "TR") {
              childNodes = container.childNodes;
              container = childNodes[Math.min(start ? offset : offset - 1, childNodes.length - 1)];
              if (container) {
                offset = start ? 0 : container.childNodes.length;
                rng['set' + (start ? 'Start' : 'End')](container, offset);
              }
            }
          }

          moveEndPoint(true);
          moveEndPoint();

          return rng;
        }

        function getLocation(rng) {
          var root = dom.getRoot(), bookmark = {};

          function getPoint(rng, start) {
            var container = rng[start ? 'startContainer' : 'endContainer'],
              offset = rng[start ? 'startOffset' : 'endOffset'], point = [], childNodes, after = 0;

            if (container.nodeType === 3) {
              point.push(normalized ? getNormalizedTextOffset(container, offset) : offset);
            } else {
              childNodes = container.childNodes;

              if (offset >= childNodes.length && childNodes.length) {
                after = 1;
                offset = Math.max(0, childNodes.length - 1);
              }

              point.push(dom.nodeIndex(childNodes[offset], normalized) + after);
            }

            for (; container && container != root; container = container.parentNode) {
              point.push(dom.nodeIndex(container, normalized));
            }

            return point;
          }

          bookmark.start = getPoint(rng, true);

          if (!selection.isCollapsed()) {
            bookmark.end = getPoint(rng);
          }

          return bookmark;
        }

        function findAdjacentContentEditableFalseElm(rng) {
          function findSibling(node, offset) {
            var sibling;

            if (NodeType.isElement(node)) {
              node = RangeUtils.getNode(node, offset);
              if (isContentEditableFalse(node)) {
                return node;
              }
            }

            if (CaretContainer.isCaretContainer(node)) {
              if (NodeType.isText(node) && CaretContainer.isCaretContainerBlock(node)) {
                node = node.parentNode;
              }

              sibling = node.previousSibling;
              if (isContentEditableFalse(sibling)) {
                return sibling;
              }

              sibling = node.nextSibling;
              if (isContentEditableFalse(sibling)) {
                return sibling;
              }
            }
          }

          return findSibling(rng.startContainer, rng.startOffset) || findSibling(rng.endContainer, rng.endOffset);
        }

        if (type == 2) {
          element = selection.getNode();
          name = element ? element.nodeName : null;
          rng = selection.getRng();

          if (isContentEditableFalse(element) || name == 'IMG') {
            return { name: name, index: findIndex(name, element) };
          }

          if (selection.tridentSel) {
            return selection.tridentSel.getBookmark(type);
          }

          element = findAdjacentContentEditableFalseElm(rng);
          if (element) {
            name = element.tagName;
            return { name: name, index: findIndex(name, element) };
          }

          return getLocation(rng);
        }

        if (type == 3) {
          rng = selection.getRng();

          return {
            start: CaretBookmark.create(dom.getRoot(), CaretPosition.fromRangeStart(rng)),
            end: CaretBookmark.create(dom.getRoot(), CaretPosition.fromRangeEnd(rng))
          };
        }

        // Handle simple range
        if (type) {
          return { rng: selection.getRng() };
        }

        rng = selection.getRng();
        id = dom.uniqueId();
        collapsed = selection.isCollapsed();
        styles = 'overflow:hidden;line-height:0px';

        // Explorer method
        if (rng.duplicate || rng.item) {
          // Text selection
          if (!rng.item) {
            rng2 = rng.duplicate();

            try {
              // Insert start marker
              rng.collapse();
              rng.pasteHTML('<span data-mce-type="bookmark" id="' + id + '_start" style="' + styles + '">' + chr + '</span>');

              // Insert end marker
              if (!collapsed) {
                rng2.collapse(false);

                // Detect the empty space after block elements in IE and move the
                // end back one character <p></p>] becomes <p>]</p>
                rng.moveToElementText(rng2.parentElement());
                if (rng.compareEndPoints('StartToEnd', rng2) === 0) {
                  rng2.move('character', -1);
                }

                rng2.pasteHTML('<span data-mce-type="bookmark" id="' + id + '_end" style="' + styles + '">' + chr + '</span>');
              }
            } catch (ex) {
              // IE might throw unspecified error so lets ignore it
              return null;
            }
          } else {
            // Control selection
            element = rng.item(0);
            name = element.nodeName;

            return { name: name, index: findIndex(name, element) };
          }
        } else {
          element = selection.getNode();
          name = element.nodeName;
          if (name == 'IMG') {
            return { name: name, index: findIndex(name, element) };
          }

          // W3C method
          rng2 = normalizeTableCellSelection(rng.cloneRange());

          // Insert end marker
          if (!collapsed) {
            rng2.collapse(false);
            rng2.insertNode(dom.create('span', { 'data-mce-type': "bookmark", id: id + '_end', style: styles }, chr));
          }

          rng = normalizeTableCellSelection(rng);
          rng.collapse(true);
          rng.insertNode(dom.create('span', { 'data-mce-type': "bookmark", id: id + '_start', style: styles }, chr));
        }

        selection.moveToBookmark({ id: id, keep: 1 });

        return { id: id };
      };

      /**
       * Restores the selection to the specified bookmark.
       *
       * @method moveToBookmark
       * @param {Object} bookmark Bookmark to restore selection from.
       * @return {Boolean} true/false if it was successful or not.
       * @example
       * // Stores a bookmark of the current selection
       * var bm = tinymce.activeEditor.selection.getBookmark();
       *
       * tinymce.activeEditor.setContent(tinymce.activeEditor.getContent() + 'Some new content');
       *
       * // Restore the selection bookmark
       * tinymce.activeEditor.selection.moveToBookmark(bm);
       */
      this.moveToBookmark = function (bookmark) {
        var rng, root, startContainer, endContainer, startOffset, endOffset;

        function setEndPoint(start) {
          var point = bookmark[start ? 'start' : 'end'], i, node, offset, children;

          if (point) {
            offset = point[0];

            // Find container node
            for (node = root, i = point.length - 1; i >= 1; i--) {
              children = node.childNodes;

              if (point[i] > children.length - 1) {
                return;
              }

              node = children[point[i]];
            }

            // Move text offset to best suitable location
            if (node.nodeType === 3) {
              offset = Math.min(point[0], node.nodeValue.length);
            }

            // Move element offset to best suitable location
            if (node.nodeType === 1) {
              offset = Math.min(point[0], node.childNodes.length);
            }

            // Set offset within container node
            if (start) {
              rng.setStart(node, offset);
            } else {
              rng.setEnd(node, offset);
            }
          }

          return true;
        }

        function restoreEndPoint(suffix) {
          var marker = dom.get(bookmark.id + '_' + suffix), node, idx, next, prev, keep = bookmark.keep;

          if (marker) {
            node = marker.parentNode;

            if (suffix == 'start') {
              if (!keep) {
                idx = dom.nodeIndex(marker);
              } else {
                node = marker.firstChild;
                idx = 1;
              }

              startContainer = endContainer = node;
              startOffset = endOffset = idx;
            } else {
              if (!keep) {
                idx = dom.nodeIndex(marker);
              } else {
                node = marker.firstChild;
                idx = 1;
              }

              endContainer = node;
              endOffset = idx;
            }

            if (!keep) {
              prev = marker.previousSibling;
              next = marker.nextSibling;

              // Remove all marker text nodes
              Tools.each(Tools.grep(marker.childNodes), function (node) {
                if (node.nodeType == 3) {
                  node.nodeValue = node.nodeValue.replace(/\uFEFF/g, '');
                }
              });

              // Remove marker but keep children if for example contents where inserted into the marker
              // Also remove duplicated instances of the marker for example by a
              // split operation or by WebKit auto split on paste feature
              while ((marker = dom.get(bookmark.id + '_' + suffix))) {
                dom.remove(marker, 1);
              }

              // If siblings are text nodes then merge them unless it's Opera since it some how removes the node
              // and we are sniffing since adding a lot of detection code for a browser with 3% of the market
              // isn't worth the effort. Sorry, Opera but it's just a fact
              if (prev && next && prev.nodeType == next.nodeType && prev.nodeType == 3 && !Env.opera) {
                idx = prev.nodeValue.length;
                prev.appendData(next.nodeValue);
                dom.remove(next);

                if (suffix == 'start') {
                  startContainer = endContainer = prev;
                  startOffset = endOffset = idx;
                } else {
                  endContainer = prev;
                  endOffset = idx;
                }
              }
            }
          }
        }

        function addBogus(node) {
          // Adds a bogus BR element for empty block elements
          if (dom.isBlock(node) && !node.innerHTML && !Env.ie) {
            node.innerHTML = '<br data-mce-bogus="1" />';
          }

          return node;
        }

        function resolveCaretPositionBookmark() {
          var rng, pos;

          rng = dom.createRng();
          pos = CaretBookmark.resolve(dom.getRoot(), bookmark.start);
          rng.setStart(pos.container(), pos.offset());

          pos = CaretBookmark.resolve(dom.getRoot(), bookmark.end);
          rng.setEnd(pos.container(), pos.offset());

          return rng;
        }

        if (bookmark) {
          if (Tools.isArray(bookmark.start)) {
            rng = dom.createRng();
            root = dom.getRoot();

            if (selection.tridentSel) {
              return selection.tridentSel.moveToBookmark(bookmark);
            }

            if (setEndPoint(true) && setEndPoint()) {
              selection.setRng(rng);
            }
          } else if (typeof bookmark.start == 'string') {
            selection.setRng(resolveCaretPositionBookmark(bookmark));
          } else if (bookmark.id) {
            // Restore start/end points
            restoreEndPoint('start');
            restoreEndPoint('end');

            if (startContainer) {
              rng = dom.createRng();
              rng.setStart(addBogus(startContainer), startOffset);
              rng.setEnd(addBogus(endContainer), endOffset);
              selection.setRng(rng);
            }
          } else if (bookmark.name) {
            selection.select(dom.select(bookmark.name)[bookmark.index]);
          } else if (bookmark.rng) {
            selection.setRng(bookmark.rng);
          }
        }
      };
    }

    /**
     * Returns true/false if the specified node is a bookmark node or not.
     *
     * @static
     * @method isBookmarkNode
     * @param {DOMNode} node DOM Node to check if it's a bookmark node or not.
     * @return {Boolean} true/false if the node is a bookmark node or not.
     */
    BookmarkManager.isBookmarkNode = function (node) {
      return node && node.tagName === 'SPAN' && node.getAttribute('data-mce-type') === 'bookmark';
    };

    return BookmarkManager;
  }
);
/**
 * ScrollIntoView.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.dom.ScrollIntoView',
  [
    'tinymce.core.dom.NodeType'
  ],
  function (NodeType) {
    var getPos = function (elm) {
      var x = 0, y = 0;

      var offsetParent = elm;
      while (offsetParent && offsetParent.nodeType) {
        x += offsetParent.offsetLeft || 0;
        y += offsetParent.offsetTop || 0;
        offsetParent = offsetParent.offsetParent;
      }

      return { x: x, y: y };
    };

    var fireScrollIntoViewEvent = function (editor, elm, alignToTop) {
      var scrollEvent = { elm: elm, alignToTop: alignToTop };
      editor.fire('scrollIntoView', scrollEvent);
      return scrollEvent.isDefaultPrevented();
    };

    var scrollIntoView = function (editor, elm, alignToTop) {
      var y, viewPort, dom = editor.dom, root = dom.getRoot(), viewPortY, viewPortH, offsetY = 0;

      if (fireScrollIntoViewEvent(editor, elm, alignToTop)) {
        return;
      }

      if (!NodeType.isElement(elm)) {
        return;
      }

      if (alignToTop === false) {
        offsetY = elm.offsetHeight;
      }

      if (root.nodeName !== 'BODY') {
        var scrollContainer = editor.selection.getScrollContainer();
        if (scrollContainer) {
          y = getPos(elm).y - getPos(scrollContainer).y + offsetY;
          viewPortH = scrollContainer.clientHeight;
          viewPortY = scrollContainer.scrollTop;
          if (y < viewPortY || y + 25 > viewPortY + viewPortH) {
            scrollContainer.scrollTop = y < viewPortY ? y : y - viewPortH + 25;
          }

          return;
        }
      }

      viewPort = dom.getViewPort(editor.getWin());
      y = dom.getPos(elm).y + offsetY;
      viewPortY = viewPort.y;
      viewPortH = viewPort.h;
      if (y < viewPort.y || y + 25 > viewPortY + viewPortH) {
        editor.getWin().scrollTo(0, y < viewPortY ? y : y - viewPortH + 25);
      }
    };

    return {
      scrollIntoView: scrollIntoView
    };
  }
);

/**
 * TridentSelection.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Selection class for old explorer versions. This one fakes the
 * native selection object available on modern browsers.
 *
 * @private
 * @class tinymce.dom.TridentSelection
 */
define(
  'tinymce.core.dom.TridentSelection',
  [
  ],
  function () {
    function Selection(selection) {
      var self = this, dom = selection.dom, FALSE = false;

      function getPosition(rng, start) {
        var checkRng, startIndex = 0, endIndex, inside,
          children, child, offset, index, position = -1, parent;

        // Setup test range, collapse it and get the parent
        checkRng = rng.duplicate();
        checkRng.collapse(start);
        parent = checkRng.parentElement();

        // Check if the selection is within the right document
        if (parent.ownerDocument !== selection.dom.doc) {
          return;
        }

        // IE will report non editable elements as it's parent so look for an editable one
        while (parent.contentEditable === "false") {
          parent = parent.parentNode;
        }

        // If parent doesn't have any children then return that we are inside the element
        if (!parent.hasChildNodes()) {
          return { node: parent, inside: 1 };
        }

        // Setup node list and endIndex
        children = parent.children;
        endIndex = children.length - 1;

        // Perform a binary search for the position
        while (startIndex <= endIndex) {
          index = Math.floor((startIndex + endIndex) / 2);

          // Move selection to node and compare the ranges
          child = children[index];
          checkRng.moveToElementText(child);
          position = checkRng.compareEndPoints(start ? 'StartToStart' : 'EndToEnd', rng);

          // Before/after or an exact match
          if (position > 0) {
            endIndex = index - 1;
          } else if (position < 0) {
            startIndex = index + 1;
          } else {
            return { node: child };
          }
        }

        // Check if child position is before or we didn't find a position
        if (position < 0) {
          // No element child was found use the parent element and the offset inside that
          if (!child) {
            checkRng.moveToElementText(parent);
            checkRng.collapse(true);
            child = parent;
            inside = true;
          } else {
            checkRng.collapse(false);
          }

          // Walk character by character in text node until we hit the selected range endpoint,
          // hit the end of document or parent isn't the right one
          // We need to walk char by char since rng.text or rng.htmlText will trim line endings
          offset = 0;
          while (checkRng.compareEndPoints(start ? 'StartToStart' : 'StartToEnd', rng) !== 0) {
            if (checkRng.move('character', 1) === 0 || parent != checkRng.parentElement()) {
              break;
            }

            offset++;
          }
        } else {
          // Child position is after the selection endpoint
          checkRng.collapse(true);

          // Walk character by character in text node until we hit the selected range endpoint, hit
          // the end of document or parent isn't the right one
          offset = 0;
          while (checkRng.compareEndPoints(start ? 'StartToStart' : 'StartToEnd', rng) !== 0) {
            if (checkRng.move('character', -1) === 0 || parent != checkRng.parentElement()) {
              break;
            }

            offset++;
          }
        }

        return { node: child, position: position, offset: offset, inside: inside };
      }

      // Returns a W3C DOM compatible range object by using the IE Range API
      function getRange() {
        var ieRange = selection.getRng(), domRange = dom.createRng(), element, collapsed, tmpRange, element2, bookmark;

        // If selection is outside the current document just return an empty range
        element = ieRange.item ? ieRange.item(0) : ieRange.parentElement();
        if (element.ownerDocument != dom.doc) {
          return domRange;
        }

        collapsed = selection.isCollapsed();

        // Handle control selection
        if (ieRange.item) {
          domRange.setStart(element.parentNode, dom.nodeIndex(element));
          domRange.setEnd(domRange.startContainer, domRange.startOffset + 1);

          return domRange;
        }

        function findEndPoint(start) {
          var endPoint = getPosition(ieRange, start), container, offset, textNodeOffset = 0, sibling, undef, nodeValue;

          container = endPoint.node;
          offset = endPoint.offset;

          if (endPoint.inside && !container.hasChildNodes()) {
            domRange[start ? 'setStart' : 'setEnd'](container, 0);
            return;
          }

          if (offset === undef) {
            domRange[start ? 'setStartBefore' : 'setEndAfter'](container);
            return;
          }

          if (endPoint.position < 0) {
            sibling = endPoint.inside ? container.firstChild : container.nextSibling;

            if (!sibling) {
              domRange[start ? 'setStartAfter' : 'setEndAfter'](container);
              return;
            }

            if (!offset) {
              if (sibling.nodeType == 3) {
                domRange[start ? 'setStart' : 'setEnd'](sibling, 0);
              } else {
                domRange[start ? 'setStartBefore' : 'setEndBefore'](sibling);
              }

              return;
            }

            // Find the text node and offset
            while (sibling) {
              if (sibling.nodeType == 3) {
                nodeValue = sibling.nodeValue;
                textNodeOffset += nodeValue.length;

                // We are at or passed the position we where looking for
                if (textNodeOffset >= offset) {
                  container = sibling;
                  textNodeOffset -= offset;
                  textNodeOffset = nodeValue.length - textNodeOffset;
                  break;
                }
              }

              sibling = sibling.nextSibling;
            }
          } else {
            // Find the text node and offset
            sibling = container.previousSibling;

            if (!sibling) {
              return domRange[start ? 'setStartBefore' : 'setEndBefore'](container);
            }

            // If there isn't any text to loop then use the first position
            if (!offset) {
              if (container.nodeType == 3) {
                domRange[start ? 'setStart' : 'setEnd'](sibling, container.nodeValue.length);
              } else {
                domRange[start ? 'setStartAfter' : 'setEndAfter'](sibling);
              }

              return;
            }

            while (sibling) {
              if (sibling.nodeType == 3) {
                textNodeOffset += sibling.nodeValue.length;

                // We are at or passed the position we where looking for
                if (textNodeOffset >= offset) {
                  container = sibling;
                  textNodeOffset -= offset;
                  break;
                }
              }

              sibling = sibling.previousSibling;
            }
          }

          domRange[start ? 'setStart' : 'setEnd'](container, textNodeOffset);
        }

        try {
          // Find start point
          findEndPoint(true);

          // Find end point if needed
          if (!collapsed) {
            findEndPoint();
          }
        } catch (ex) {
          // IE has a nasty bug where text nodes might throw "invalid argument" when you
          // access the nodeValue or other properties of text nodes. This seems to happen when
          // text nodes are split into two nodes by a delete/backspace call.
          // So let us detect and try to fix it.
          if (ex.number == -2147024809) {
            // Get the current selection
            bookmark = self.getBookmark(2);

            // Get start element
            tmpRange = ieRange.duplicate();
            tmpRange.collapse(true);
            element = tmpRange.parentElement();

            // Get end element
            if (!collapsed) {
              tmpRange = ieRange.duplicate();
              tmpRange.collapse(false);
              element2 = tmpRange.parentElement();
              element2.innerHTML = element2.innerHTML;
            }

            // Remove the broken elements
            element.innerHTML = element.innerHTML;

            // Restore the selection
            self.moveToBookmark(bookmark);

            // Since the range has moved we need to re-get it
            ieRange = selection.getRng();

            // Find start point
            findEndPoint(true);

            // Find end point if needed
            if (!collapsed) {
              findEndPoint();
            }
          } else {
            throw ex; // Throw other errors
          }
        }

        return domRange;
      }

      this.getBookmark = function (type) {
        var rng = selection.getRng(), bookmark = {};

        function getIndexes(node) {
          var parent, root, children, i, indexes = [];

          parent = node.parentNode;
          root = dom.getRoot().parentNode;

          while (parent != root && parent.nodeType !== 9) {
            children = parent.children;

            i = children.length;
            while (i--) {
              if (node === children[i]) {
                indexes.push(i);
                break;
              }
            }

            node = parent;
            parent = parent.parentNode;
          }

          return indexes;
        }

        function getBookmarkEndPoint(start) {
          var position;

          position = getPosition(rng, start);
          if (position) {
            return {
              position: position.position,
              offset: position.offset,
              indexes: getIndexes(position.node),
              inside: position.inside
            };
          }
        }

        // Non ubstructive bookmark
        if (type === 2) {
          // Handle text selection
          if (!rng.item) {
            bookmark.start = getBookmarkEndPoint(true);

            if (!selection.isCollapsed()) {
              bookmark.end = getBookmarkEndPoint();
            }
          } else {
            bookmark.start = { ctrl: true, indexes: getIndexes(rng.item(0)) };
          }
        }

        return bookmark;
      };

      this.moveToBookmark = function (bookmark) {
        var rng, body = dom.doc.body;

        function resolveIndexes(indexes) {
          var node, i, idx, children;

          node = dom.getRoot();
          for (i = indexes.length - 1; i >= 0; i--) {
            children = node.children;
            idx = indexes[i];

            if (idx <= children.length - 1) {
              node = children[idx];
            }
          }

          return node;
        }

        function setBookmarkEndPoint(start) {
          var endPoint = bookmark[start ? 'start' : 'end'], moveLeft, moveRng, undef, offset;

          if (endPoint) {
            moveLeft = endPoint.position > 0;

            moveRng = body.createTextRange();
            moveRng.moveToElementText(resolveIndexes(endPoint.indexes));

            offset = endPoint.offset;
            if (offset !== undef) {
              moveRng.collapse(endPoint.inside || moveLeft);
              moveRng.moveStart('character', moveLeft ? -offset : offset);
            } else {
              moveRng.collapse(start);
            }

            rng.setEndPoint(start ? 'StartToStart' : 'EndToStart', moveRng);

            if (start) {
              rng.collapse(true);
            }
          }
        }

        if (bookmark.start) {
          if (bookmark.start.ctrl) {
            rng = body.createControlRange();
            rng.addElement(resolveIndexes(bookmark.start.indexes));
            rng.select();
          } else {
            rng = body.createTextRange();
            setBookmarkEndPoint(true);
            setBookmarkEndPoint();
            rng.select();
          }
        }
      };

      this.addRange = function (rng) {
        var ieRng, ctrlRng, startContainer, startOffset, endContainer, endOffset, sibling,
          doc = selection.dom.doc, body = doc.body, nativeRng, ctrlElm;

        function setEndPoint(start) {
          var container, offset, marker, tmpRng, nodes;

          marker = dom.create('a');
          container = start ? startContainer : endContainer;
          offset = start ? startOffset : endOffset;
          tmpRng = ieRng.duplicate();

          if (container == doc || container == doc.documentElement) {
            container = body;
            offset = 0;
          }

          if (container.nodeType == 3) {
            container.parentNode.insertBefore(marker, container);
            tmpRng.moveToElementText(marker);
            tmpRng.moveStart('character', offset);
            dom.remove(marker);
            ieRng.setEndPoint(start ? 'StartToStart' : 'EndToEnd', tmpRng);
          } else {
            nodes = container.childNodes;

            if (nodes.length) {
              if (offset >= nodes.length) {
                dom.insertAfter(marker, nodes[nodes.length - 1]);
              } else {
                container.insertBefore(marker, nodes[offset]);
              }

              tmpRng.moveToElementText(marker);
            } else if (container.canHaveHTML) {
              // Empty node selection for example <div>|</div>
              // Setting innerHTML with a span marker then remove that marker seems to keep empty block elements open
              container.innerHTML = '<span>&#xFEFF;</span>';
              marker = container.firstChild;
              tmpRng.moveToElementText(marker);
              tmpRng.collapse(FALSE); // Collapse false works better than true for some odd reason
            }

            ieRng.setEndPoint(start ? 'StartToStart' : 'EndToEnd', tmpRng);
            dom.remove(marker);
          }
        }

        // Setup some shorter versions
        startContainer = rng.startContainer;
        startOffset = rng.startOffset;
        endContainer = rng.endContainer;
        endOffset = rng.endOffset;
        ieRng = body.createTextRange();

        // If single element selection then try making a control selection out of it
        if (startContainer == endContainer && startContainer.nodeType == 1) {
          // Trick to place the caret inside an empty block element like <p></p>
          if (startOffset == endOffset && !startContainer.hasChildNodes()) {
            if (startContainer.canHaveHTML) {
              // Check if previous sibling is an empty block if it is then we need to render it
              // IE would otherwise move the caret into the sibling instead of the empty startContainer see: #5236
              // Example this: <p></p><p>|</p> would become this: <p>|</p><p></p>
              sibling = startContainer.previousSibling;
              if (sibling && !sibling.hasChildNodes() && dom.isBlock(sibling)) {
                sibling.innerHTML = '&#xFEFF;';
              } else {
                sibling = null;
              }

              startContainer.innerHTML = '<span>&#xFEFF;</span><span>&#xFEFF;</span>';
              ieRng.moveToElementText(startContainer.lastChild);
              ieRng.select();
              dom.doc.selection.clear();
              startContainer.innerHTML = '';

              if (sibling) {
                sibling.innerHTML = '';
              }
              return;
            }

            startOffset = dom.nodeIndex(startContainer);
            startContainer = startContainer.parentNode;
          }

          if (startOffset == endOffset - 1) {
            try {
              ctrlElm = startContainer.childNodes[startOffset];
              ctrlRng = body.createControlRange();
              ctrlRng.addElement(ctrlElm);
              ctrlRng.select();

              // Check if the range produced is on the correct element and is a control range
              // On IE 8 it will select the parent contentEditable container if you select an inner element see: #5398
              nativeRng = selection.getRng();
              if (nativeRng.item && ctrlElm === nativeRng.item(0)) {
                return;
              }
            } catch (ex) {
              // Ignore
            }
          }
        }

        // Set start/end point of selection
        setEndPoint(true);
        setEndPoint();

        // Select the new range and scroll it into view
        ieRng.select();
      };

      // Expose range method
      this.getRangeAt = getRange;
    }

    return Selection;
  }
);

define(
  'ephox.katamari.api.Type',

  [
    'global!Array',
    'global!String'
  ],

  function (Array, String) {
    var typeOf = function(x) {
      if (x === null) return 'null';
      var t = typeof x;
      if (t === 'object' && Array.prototype.isPrototypeOf(x)) return 'array';
      if (t === 'object' && String.prototype.isPrototypeOf(x)) return 'string';
      return t;
    };

    var isType = function (type) {
      return function (value) {
        return typeOf(value) === type;
      };
    };

    return {
      isString: isType('string'),
      isObject: isType('object'),
      isArray: isType('array'),
      isNull: isType('null'),
      isBoolean: isType('boolean'),
      isUndefined: isType('undefined'),
      isFunction: isType('function'),
      isNumber: isType('number')
    };
  }
);


define(
  'ephox.katamari.data.Immutable',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'global!Array',
    'global!Error'
  ],

  function (Arr, Fun, Array, Error) {
    return function () {
      var fields = arguments;
      return function(/* values */) {
        //  Don't use array slice(arguments), makes the whole function unoptimisable on Chrome
        var values = new Array(arguments.length);
        for (var i = 0; i < values.length; i++) values[i] = arguments[i];

        if (fields.length !== values.length)
          throw new Error('Wrong number of arguments to struct. Expected "[' + fields.length + ']", got ' + values.length + ' arguments');

        var struct = {};
        Arr.each(fields, function (name, i) {
          struct[name] = Fun.constant(values[i]);
        });
        return struct;
      };
    };
  }
);

define(
  'ephox.katamari.api.Obj',

  [
    'ephox.katamari.api.Option',
    'global!Object'
  ],

  function (Option, Object) {
    // There are many variations of Object iteration that are faster than the 'for-in' style:
    // http://jsperf.com/object-keys-iteration/107
    //
    // Use the native keys if it is available (IE9+), otherwise fall back to manually filtering
    var keys = (function () {
      var fastKeys = Object.keys;

      // This technically means that 'each' and 'find' on IE8 iterate through the object twice.
      // This code doesn't run on IE8 much, so it's an acceptable tradeoff.
      // If it becomes a problem we can always duplicate the feature detection inside each and find as well.
      var slowKeys = function (o) {
        var r = [];
        for (var i in o) {
          if (o.hasOwnProperty(i)) {
            r.push(i);
          }
        }
        return r;
      };

      return fastKeys === undefined ? slowKeys : fastKeys;
    })();


    var each = function (obj, f) {
      var props = keys(obj);
      for (var k = 0, len = props.length; k < len; k++) {
        var i = props[k];
        var x = obj[i];
        f(x, i, obj);
      }
    };

    /** objectMap :: (JsObj(k, v), (v, k, JsObj(k, v) -> x)) -> JsObj(k, x) */
    var objectMap = function (obj, f) {
      return tupleMap(obj, function (x, i, obj) {
        return {
          k: i,
          v: f(x, i, obj)
        };
      });
    };

    /** tupleMap :: (JsObj(k, v), (v, k, JsObj(k, v) -> { k: x, v: y })) -> JsObj(x, y) */
    var tupleMap = function (obj, f) {
      var r = {};
      each(obj, function (x, i) {
        var tuple = f(x, i, obj);
        r[tuple.k] = tuple.v;
      });
      return r;
    };

    /** bifilter :: (JsObj(k, v), (v, k -> Bool)) -> { t: JsObj(k, v), f: JsObj(k, v) } */
    var bifilter = function (obj, pred) {
      var t = {};
      var f = {};
      each(obj, function(x, i) {
        var branch = pred(x, i) ? t : f;
        branch[i] = x;
      });
      return {
        t: t,
        f: f
      };
    };

    /** mapToArray :: (JsObj(k, v), (v, k -> a)) -> [a] */
    var mapToArray = function (obj, f) {
      var r = [];
      each(obj, function(value, name) {
        r.push(f(value, name));
      });
      return r;
    };

    /** find :: (JsObj(k, v), (v, k, JsObj(k, v) -> Bool)) -> Option v */
    var find = function (obj, pred) {
      var props = keys(obj);
      for (var k = 0, len = props.length; k < len; k++) {
        var i = props[k];
        var x = obj[i];
        if (pred(x, i, obj)) {
          return Option.some(x);
        }
      }
      return Option.none();
    };

    /** values :: JsObj(k, v) -> [v] */
    var values = function (obj) {
      return mapToArray(obj, function (v) {
        return v;
      });
    };

    var size = function (obj) {
      return values(obj).length;
    };

    return {
      bifilter: bifilter,
      each: each,
      map: objectMap,
      mapToArray: mapToArray,
      tupleMap: tupleMap,
      find: find,
      keys: keys,
      values: values,
      size: size
    };
  }
);
define(
  'ephox.katamari.util.BagUtils',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Type',
    'global!Error'
  ],

  function (Arr, Type, Error) {
    var sort = function (arr) {
      return arr.slice(0).sort();
    };

    var reqMessage = function (required, keys) {
      throw new Error('All required keys (' + sort(required).join(', ') + ') were not specified. Specified keys were: ' + sort(keys).join(', ') + '.');
    };

    var unsuppMessage = function (unsupported) {
      throw new Error('Unsupported keys for object: ' + sort(unsupported).join(', '));
    };

    var validateStrArr = function (label, array) {
      if (!Type.isArray(array)) throw new Error('The ' + label + ' fields must be an array. Was: ' + array + '.');
      Arr.each(array, function (a) {
        if (!Type.isString(a)) throw new Error('The value ' + a + ' in the ' + label + ' fields was not a string.');
      });
    };

    var invalidTypeMessage = function (incorrect, type) {
      throw new Error('All values need to be of type: ' + type + '. Keys (' + sort(incorrect).join(', ') + ') were not.');
    };

    var checkDupes = function (everything) {
      var sorted = sort(everything);
      var dupe = Arr.find(sorted, function (s, i) {
        return i < sorted.length -1 && s === sorted[i + 1];
      });

      dupe.each(function (d) {
        throw new Error('The field: ' + d + ' occurs more than once in the combined fields: [' + sorted.join(', ') + '].');
      });
    };

    return {
      sort: sort,
      reqMessage: reqMessage,
      unsuppMessage: unsuppMessage,
      validateStrArr: validateStrArr,
      invalidTypeMessage: invalidTypeMessage,
      checkDupes: checkDupes
    };
  }
);
define(
  'ephox.katamari.data.MixedBag',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Obj',
    'ephox.katamari.api.Option',
    'ephox.katamari.util.BagUtils',
    'global!Error',
    'global!Object'
  ],

  function (Arr, Fun, Obj, Option, BagUtils, Error, Object) {
    
    return function (required, optional) {
      var everything = required.concat(optional);
      if (everything.length === 0) throw new Error('You must specify at least one required or optional field.');

      BagUtils.validateStrArr('required', required);
      BagUtils.validateStrArr('optional', optional);

      BagUtils.checkDupes(everything);

      return function (obj) {
        var keys = Obj.keys(obj);

        // Ensure all required keys are present.
        var allReqd = Arr.forall(required, function (req) {
          return Arr.contains(keys, req);
        });

        if (! allReqd) BagUtils.reqMessage(required, keys);

        var unsupported = Arr.filter(keys, function (key) {
          return !Arr.contains(everything, key);
        });

        if (unsupported.length > 0) BagUtils.unsuppMessage(unsupported);

        var r = {};
        Arr.each(required, function (req) {
          r[req] = Fun.constant(obj[req]);
        });

        Arr.each(optional, function (opt) {
          r[opt] = Fun.constant(Object.prototype.hasOwnProperty.call(obj, opt) ? Option.some(obj[opt]): Option.none());
        });

        return r;
      };
    };
  }
);
define(
  'ephox.katamari.api.Struct',

  [
    'ephox.katamari.data.Immutable',
    'ephox.katamari.data.MixedBag'
  ],

  function (Immutable, MixedBag) {
    return {
      immutable: Immutable,
      immutableBag: MixedBag
    };
  }
);

define(
  'ephox.sugar.alien.Recurse',

  [

  ],

  function () {
    /**
     * Applies f repeatedly until it completes (by returning Option.none()).
     *
     * Normally would just use recursion, but JavaScript lacks tail call optimisation.
     *
     * This is what recursion looks like when manually unravelled :)
     */
    var toArray = function (target, f) {
      var r = [];

      var recurse = function (e) {
        r.push(e);
        return f(e);
      };

      var cur = f(target);
      do {
        cur = cur.bind(recurse);
      } while (cur.isSome());

      return r;
    };

    return {
      toArray: toArray
    };
  }
);
define(
  'ephox.katamari.api.Global',

  [
  ],

  function () {
    // Use window object as the global if it's available since CSP will block script evals
    if (typeof window !== 'undefined') {
      return window;
    } else {
      return Function('return this;')();
    }
  }
);


define(
  'ephox.katamari.api.Resolve',

  [
    'ephox.katamari.api.Global'
  ],

  function (Global) {
    /** path :: ([String], JsObj?) -> JsObj */
    var path = function (parts, scope) {
      var o = scope !== undefined ? scope : Global;
      for (var i = 0; i < parts.length && o !== undefined && o !== null; ++i)
        o = o[parts[i]];
      return o;
    };

    /** resolve :: (String, JsObj?) -> JsObj */
    var resolve = function (p, scope) {
      var parts = p.split('.');
      return path(parts, scope);
    };

    /** step :: (JsObj, String) -> JsObj */
    var step = function (o, part) {
      if (o[part] === undefined || o[part] === null)
        o[part] = {};
      return o[part];
    };

    /** forge :: ([String], JsObj?) -> JsObj */
    var forge = function (parts, target) {
      var o = target !== undefined ? target : Global;      
      for (var i = 0; i < parts.length; ++i)
        o = step(o, parts[i]);
      return o;
    };

    /** namespace :: (String, JsObj?) -> JsObj */
    var namespace = function (name, target) {
      var parts = name.split('.');
      return forge(parts, target);
    };

    return {
      path: path,
      resolve: resolve,
      forge: forge,
      namespace: namespace
    };
  }
);


define(
  'ephox.sand.util.Global',

  [
    'ephox.katamari.api.Resolve'
  ],

  function (Resolve) {
    var unsafe = function (name, scope) {
      return Resolve.resolve(name, scope);
    };

    var getOrDie = function (name, scope) {
      var actual = unsafe(name, scope);

      if (actual === undefined) throw name + ' not available on this browser';
      return actual;
    };

    return {
      getOrDie: getOrDie
    };
  }
);
define(
  'ephox.sand.api.Node',

  [
    'ephox.sand.util.Global'
  ],

  function (Global) {
    /*
     * MDN says (yes) for IE, but it's undefined on IE8
     */
    var node = function () {
      var f = Global.getOrDie('Node');
      return f;
    };

    /*
     * Most of numerosity doesn't alter the methods on the object.
     * We're making an exception for Node, because bitwise and is so easy to get wrong.
     *
     * Might be nice to ADT this at some point instead of having individual methods.
     */

    var compareDocumentPosition = function (a, b, match) {
      // Returns: 0 if e1 and e2 are the same node, or a bitmask comparing the positions
      // of nodes e1 and e2 in their documents. See the URL below for bitmask interpretation
      // https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition
      return (a.compareDocumentPosition(b) & match) !== 0;
    };

    var documentPositionPreceding = function (a, b) {
      return compareDocumentPosition(a, b, node().DOCUMENT_POSITION_PRECEDING);
    };

    var documentPositionContainedBy = function (a, b) {
      return compareDocumentPosition(a, b, node().DOCUMENT_POSITION_CONTAINED_BY);
    };

    return {
      documentPositionPreceding: documentPositionPreceding,
      documentPositionContainedBy: documentPositionContainedBy
    };
  }
);
define(
  'ephox.katamari.api.Thunk',

  [
  ],

  function () {

    var cached = function (f) {
      var called = false;
      var r;
      return function() {
        if (!called) {
          called = true;
          r = f.apply(null, arguments);
        }
        return r;
      };
    };

    return {
      cached: cached
    };
  }
);

defineGlobal("global!Number", Number);
define(
  'ephox.sand.detect.Version',

  [
    'ephox.katamari.api.Arr',
    'global!Number',
    'global!String'
  ],

  function (Arr, Number, String) {
    var firstMatch = function (regexes, s) {
      for (var i = 0; i < regexes.length; i++) {
        var x = regexes[i];
        if (x.test(s)) return x;
      }
      return undefined;
    };

    var find = function (regexes, agent) {
      var r = firstMatch(regexes, agent);
      if (!r) return { major : 0, minor : 0 };
      var group = function(i) {
        return Number(agent.replace(r, '$' + i));
      };
      return nu(group(1), group(2));
    };

    var detect = function (versionRegexes, agent) {
      var cleanedAgent = String(agent).toLowerCase();

      if (versionRegexes.length === 0) return unknown();
      return find(versionRegexes, cleanedAgent);
    };

    var unknown = function () {
      return nu(0, 0);
    };

    var nu = function (major, minor) {
      return { major: major, minor: minor };
    };

    return {
      nu: nu,
      detect: detect,
      unknown: unknown
    };
  }
);
define(
  'ephox.sand.core.Browser',

  [
    'ephox.katamari.api.Fun',
    'ephox.sand.detect.Version'
  ],

  function (Fun, Version) {
    var edge = 'Edge';
    var chrome = 'Chrome';
    var ie = 'IE';
    var opera = 'Opera';
    var firefox = 'Firefox';
    var safari = 'Safari';

    var isBrowser = function (name, current) {
      return function () {
        return current === name;
      };
    };

    var unknown = function () {
      return nu({
        current: undefined,
        version: Version.unknown()
      });
    };

    var nu = function (info) {
      var current = info.current;
      var version = info.version;

      return {
        current: current,
        version: version,

        // INVESTIGATE: Rename to Edge ?
        isEdge: isBrowser(edge, current),
        isChrome: isBrowser(chrome, current),
        // NOTE: isIe just looks too weird
        isIE: isBrowser(ie, current),
        isOpera: isBrowser(opera, current),
        isFirefox: isBrowser(firefox, current),
        isSafari: isBrowser(safari, current)
      };
    };

    return {
      unknown: unknown,
      nu: nu,
      edge: Fun.constant(edge),
      chrome: Fun.constant(chrome),
      ie: Fun.constant(ie),
      opera: Fun.constant(opera),
      firefox: Fun.constant(firefox),
      safari: Fun.constant(safari)
    };
  }
);
define(
  'ephox.sand.core.OperatingSystem',

  [
    'ephox.katamari.api.Fun',
    'ephox.sand.detect.Version'
  ],

  function (Fun, Version) {
    var windows = 'Windows';
    var ios = 'iOS';
    var android = 'Android';
    var linux = 'Linux';
    var osx = 'OSX';
    var solaris = 'Solaris';
    var freebsd = 'FreeBSD';

    // Though there is a bit of dupe with this and Browser, trying to 
    // reuse code makes it much harder to follow and change.
    var isOS = function (name, current) {
      return function () {
        return current === name;
      };
    };

    var unknown = function () {
      return nu({
        current: undefined,
        version: Version.unknown()
      });
    };

    var nu = function (info) {
      var current = info.current;
      var version = info.version;

      return {
        current: current,
        version: version,

        isWindows: isOS(windows, current),
        // TODO: Fix capitalisation
        isiOS: isOS(ios, current),
        isAndroid: isOS(android, current),
        isOSX: isOS(osx, current),
        isLinux: isOS(linux, current),
        isSolaris: isOS(solaris, current),
        isFreeBSD: isOS(freebsd, current)
      };
    };

    return {
      unknown: unknown,
      nu: nu,

      windows: Fun.constant(windows),
      ios: Fun.constant(ios),
      android: Fun.constant(android),
      linux: Fun.constant(linux),
      osx: Fun.constant(osx),
      solaris: Fun.constant(solaris),
      freebsd: Fun.constant(freebsd)
    };
  }
);
define(
  'ephox.sand.detect.DeviceType',

  [
    'ephox.katamari.api.Fun'
  ],

  function (Fun) {
    return function (os, browser, userAgent) {
      var isiPad = os.isiOS() && /ipad/i.test(userAgent) === true;
      var isiPhone = os.isiOS() && !isiPad;
      var isAndroid3 = os.isAndroid() && os.version.major === 3;
      var isAndroid4 = os.isAndroid() && os.version.major === 4;
      var isTablet = isiPad || isAndroid3 || ( isAndroid4 && /mobile/i.test(userAgent) === true );
      var isTouch = os.isiOS() || os.isAndroid();
      var isPhone = isTouch && !isTablet;

      var iOSwebview = browser.isSafari() && os.isiOS() && /safari/i.test(userAgent) === false;

      return {
        isiPad : Fun.constant(isiPad),
        isiPhone: Fun.constant(isiPhone),
        isTablet: Fun.constant(isTablet),
        isPhone: Fun.constant(isPhone),
        isTouch: Fun.constant(isTouch),
        isAndroid: os.isAndroid,
        isiOS: os.isiOS,
        isWebView: Fun.constant(iOSwebview)
      };
    };
  }
);
define(
  'ephox.sand.detect.UaString',

  [
    'ephox.katamari.api.Arr',
    'ephox.sand.detect.Version',
    'global!String'
  ],

  function (Arr, Version, String) {
    var detect = function (candidates, userAgent) {
      var agent = String(userAgent).toLowerCase();
      return Arr.find(candidates, function (candidate) {
        return candidate.search(agent);
      });
    };

    // They (browser and os) are the same at the moment, but they might
    // not stay that way.
    var detectBrowser = function (browsers, userAgent) {
      return detect(browsers, userAgent).map(function (browser) {
        var version = Version.detect(browser.versionRegexes, userAgent);
        return {
          current: browser.name,
          version: version
        };
      });
    };

    var detectOs = function (oses, userAgent) {
      return detect(oses, userAgent).map(function (os) {
        var version = Version.detect(os.versionRegexes, userAgent);
        return {
          current: os.name,
          version: version
        };
      });
    };

    return {
      detectBrowser: detectBrowser,
      detectOs: detectOs
    };
  }
);
define(
  'ephox.katamari.str.StrAppend',

  [

  ],

  function () {
    var addToStart = function (str, prefix) {
      return prefix + str;
    };

    var addToEnd = function (str, suffix) {
      return str + suffix;
    };

    var removeFromStart = function (str, numChars) {
      return str.substring(numChars);
    };

    var removeFromEnd = function (str, numChars) {
      return str.substring(0, str.length - numChars);
    };
 
    return {
      addToStart: addToStart,
      addToEnd: addToEnd,
      removeFromStart: removeFromStart,
      removeFromEnd: removeFromEnd
    };
  }
);
define(
  'ephox.katamari.str.StringParts',

  [
    'ephox.katamari.api.Option',
    'global!Error'
  ],

  function (Option, Error) {
    /** Return the first 'count' letters from 'str'.
-     *  e.g. first("abcde", 2) === "ab"
-     */
    var first = function(str, count) {
     return str.substr(0, count);
    };

    /** Return the last 'count' letters from 'str'.
    *  e.g. last("abcde", 2) === "de"
    */
    var last = function(str, count) {
     return str.substr(str.length - count, str.length);
    };

    var head = function(str) {
      return str === '' ? Option.none() : Option.some(str.substr(0, 1));
    };

    var tail = function(str) {
      return str === '' ? Option.none() : Option.some(str.substring(1));
    };

    return {
      first: first,
      last: last,
      head: head,
      tail: tail
    };
  }
);
define(
  'ephox.katamari.api.Strings',

  [
    'ephox.katamari.str.StrAppend',
    'ephox.katamari.str.StringParts',
    'global!Error'
  ],

  function (StrAppend, StringParts, Error) {
    var checkRange = function(str, substr, start) {
      if (substr === '') return true;
      if (str.length < substr.length) return false;
      var x = str.substr(start, start + substr.length);
      return x === substr;
    };

    /** Given a string and object, perform template-replacements on the string, as specified by the object.
     * Any template fields of the form ${name} are replaced by the string or number specified as obj["name"]
     * Based on Douglas Crockford's 'supplant' method for template-replace of strings. Uses different template format.
     */
    var supplant = function(str, obj) {
      var isStringOrNumber = function(a) {
        var t = typeof a;
        return t === 'string' || t === 'number';
      };

      return str.replace(/\${([^{}]*)}/g,
        function (a, b) {
          var value = obj[b];
          return isStringOrNumber(value) ? value : a;
        }
      );
    };

    var removeLeading = function (str, prefix) {
      return startsWith(str, prefix) ? StrAppend.removeFromStart(str, prefix.length) : str;
    };

    var removeTrailing = function (str, prefix) {
      return endsWith(str, prefix) ? StrAppend.removeFromEnd(str, prefix.length) : str;
    };

    var ensureLeading = function (str, prefix) {
      return startsWith(str, prefix) ? str : StrAppend.addToStart(str, prefix);
    };

    var ensureTrailing = function (str, prefix) {
      return endsWith(str, prefix) ? str : StrAppend.addToEnd(str, prefix);
    };
 
    var contains = function(str, substr) {
      return str.indexOf(substr) !== -1;
    };

    var capitalize = function(str) {
      return StringParts.head(str).bind(function (head) {
        return StringParts.tail(str).map(function (tail) {
          return head.toUpperCase() + tail;
        });
      }).getOr(str);
    };

    /** Does 'str' start with 'prefix'?
     *  Note: all strings start with the empty string.
     *        More formally, for all strings x, startsWith(x, "").
     *        This is so that for all strings x and y, startsWith(y + x, y)
     */
    var startsWith = function(str, prefix) {
      return checkRange(str, prefix, 0);
    };

    /** Does 'str' end with 'suffix'?
     *  Note: all strings end with the empty string.
     *        More formally, for all strings x, endsWith(x, "").
     *        This is so that for all strings x and y, endsWith(x + y, y)
     */
    var endsWith = function(str, suffix) {
      return checkRange(str, suffix, str.length - suffix.length);
    };

   
    /** removes all leading and trailing spaces */
    var trim = function(str) {
      return str.replace(/^\s+|\s+$/g, '');
    };

    var lTrim = function(str) {
      return str.replace(/^\s+/g, '');
    };

    var rTrim = function(str) {
      return str.replace(/\s+$/g, '');
    };

    return {
      supplant: supplant,
      startsWith: startsWith,
      removeLeading: removeLeading,
      removeTrailing: removeTrailing,
      ensureLeading: ensureLeading,
      ensureTrailing: ensureTrailing,
      endsWith: endsWith,
      contains: contains,
      trim: trim,
      lTrim: lTrim,
      rTrim: rTrim,
      capitalize: capitalize
    };
  }
);

define(
  'ephox.sand.info.PlatformInfo',

  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Strings'
  ],

  function (Fun, Strings) {
    var normalVersionRegex = /.*?version\/\ ?([0-9]+)\.([0-9]+).*/;

    var checkContains = function (target) {
      return function (uastring) {
        return Strings.contains(uastring, target);
      };
    };

    var browsers = [
      {
        name : 'Edge',
        versionRegexes: [/.*?edge\/ ?([0-9]+)\.([0-9]+)$/],
        search: function (uastring) {
          var monstrosity = Strings.contains(uastring, 'edge/') && Strings.contains(uastring, 'chrome') && Strings.contains(uastring, 'safari') && Strings.contains(uastring, 'applewebkit');
          return monstrosity;
        }
      },
      {
        name : 'Chrome',
        versionRegexes: [/.*?chrome\/([0-9]+)\.([0-9]+).*/, normalVersionRegex],
        search : function (uastring) {
          return Strings.contains(uastring, 'chrome') && !Strings.contains(uastring, 'chromeframe');
        }
      },
      {
        name : 'IE',
        versionRegexes: [/.*?msie\ ?([0-9]+)\.([0-9]+).*/, /.*?rv:([0-9]+)\.([0-9]+).*/],
        search: function (uastring) {
          return Strings.contains(uastring, 'msie') || Strings.contains(uastring, 'trident');
        }
      },
      // INVESTIGATE: Is this still the Opera user agent?
      {
        name : 'Opera',
        versionRegexes: [normalVersionRegex, /.*?opera\/([0-9]+)\.([0-9]+).*/],
        search : checkContains('opera')
      },
      {
        name : 'Firefox',
        versionRegexes: [/.*?firefox\/\ ?([0-9]+)\.([0-9]+).*/],
        search : checkContains('firefox')
      },
      {
        name : 'Safari',
        versionRegexes: [normalVersionRegex, /.*?cpu os ([0-9]+)_([0-9]+).*/],
        search : function (uastring) {
          return (Strings.contains(uastring, 'safari') || Strings.contains(uastring, 'mobile/')) && Strings.contains(uastring, 'applewebkit');
        }
      }
    ];

    var oses = [
      {
        name : 'Windows',
        search : checkContains('win'),
        versionRegexes: [/.*?windows\ nt\ ?([0-9]+)\.([0-9]+).*/]
      },
      {
        name : 'iOS',
        search : function (uastring) {
          return Strings.contains(uastring, 'iphone') || Strings.contains(uastring, 'ipad');
        },
        versionRegexes: [/.*?version\/\ ?([0-9]+)\.([0-9]+).*/, /.*cpu os ([0-9]+)_([0-9]+).*/, /.*cpu iphone os ([0-9]+)_([0-9]+).*/]
      },
      {
        name : 'Android',
        search : checkContains('android'),
        versionRegexes: [/.*?android\ ?([0-9]+)\.([0-9]+).*/]
      },
      {
        name : 'OSX',
        search : checkContains('os x'),
        versionRegexes: [/.*?os\ x\ ?([0-9]+)_([0-9]+).*/]
      },
      {
        name : 'Linux',
        search : checkContains('linux'),
        versionRegexes: [ ]
      },
      { name : 'Solaris',
        search : checkContains('sunos'),
        versionRegexes: [ ]
      },
      {
       name : 'FreeBSD',
       search : checkContains('freebsd'),
       versionRegexes: [ ]
      }
    ];

    return {
      browsers: Fun.constant(browsers),
      oses: Fun.constant(oses)
    };
  }
);
define(
  'ephox.sand.core.PlatformDetection',

  [
    'ephox.sand.core.Browser',
    'ephox.sand.core.OperatingSystem',
    'ephox.sand.detect.DeviceType',
    'ephox.sand.detect.UaString',
    'ephox.sand.info.PlatformInfo'
  ],

  function (Browser, OperatingSystem, DeviceType, UaString, PlatformInfo) {
    var detect = function (userAgent) {
      var browsers = PlatformInfo.browsers();
      var oses = PlatformInfo.oses();

      var browser = UaString.detectBrowser(browsers, userAgent).fold(
        Browser.unknown,
        Browser.nu
      );
      var os = UaString.detectOs(oses, userAgent).fold(
        OperatingSystem.unknown,
        OperatingSystem.nu
      );
      var deviceType = DeviceType(os, browser, userAgent);

      return {
        browser: browser,
        os: os,
        deviceType: deviceType
      };
    };

    return {
      detect: detect
    };
  }
);
defineGlobal("global!navigator", navigator);
define(
  'ephox.sand.api.PlatformDetection',

  [
    'ephox.katamari.api.Thunk',
    'ephox.sand.core.PlatformDetection',
    'global!navigator'
  ],

  function (Thunk, PlatformDetection, navigator) {
    var detect = Thunk.cached(function () {
      var userAgent = navigator.userAgent;
      return PlatformDetection.detect(userAgent);
    });

    return {
      detect: detect
    };
  }
);
define("global!console", [], function () { if (typeof console === "undefined") console = { log: function () {} }; return console; });
defineGlobal("global!document", document);
define(
  'ephox.sugar.api.node.Element',

  [
    'ephox.katamari.api.Fun',
    'global!Error',
    'global!console',
    'global!document'
  ],

  function (Fun, Error, console, document) {
    var fromHtml = function (html, scope) {
      var doc = scope || document;
      var div = doc.createElement('div');
      div.innerHTML = html;
      if (!div.hasChildNodes() || div.childNodes.length > 1) {
        console.error('HTML does not have a single root node', html);
        throw 'HTML must have a single root node';
      }
      return fromDom(div.childNodes[0]);
    };

    var fromTag = function (tag, scope) {
      var doc = scope || document;
      var node = doc.createElement(tag);
      return fromDom(node);
    };

    var fromText = function (text, scope) {
      var doc = scope || document;
      var node = doc.createTextNode(text);
      return fromDom(node);
    };

    var fromDom = function (node) {
      if (node === null || node === undefined) throw new Error('Node cannot be null or undefined');
      return {
        dom: Fun.constant(node)
      };
    };

    return {
      fromHtml: fromHtml,
      fromTag: fromTag,
      fromText: fromText,
      fromDom: fromDom
    };
  }
);

define(
  'ephox.sugar.api.node.NodeTypes',

  [

  ],

  function () {
    return {
      ATTRIBUTE:              2,
      CDATA_SECTION:          4,
      COMMENT:                8,
      DOCUMENT:               9,
      DOCUMENT_TYPE:          10,
      DOCUMENT_FRAGMENT:      11,
      ELEMENT:                1,
      TEXT:                   3,
      PROCESSING_INSTRUCTION: 7,
      ENTITY_REFERENCE:       5,
      ENTITY:                 6,
      NOTATION:               12
    };
  }
);
define(
  'ephox.sugar.api.search.Selectors',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Option',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.NodeTypes',
    'global!Error',
    'global!document'
  ],

  function (Arr, Option, Element, NodeTypes, Error, document) {
    /*
     * There's a lot of code here; the aim is to allow the browser to optimise constant comparisons,
     * instead of doing object lookup feature detection on every call
     */
    var STANDARD = 0;
    var MSSTANDARD = 1;
    var WEBKITSTANDARD = 2;
    var FIREFOXSTANDARD = 3;

    var selectorType = (function () {
      var test = document.createElement('span');
      // As of Chrome 34 / Safari 7.1 / FireFox 34, everyone except IE has the unprefixed function.
      // Still check for the others, but do it last.
      return test.matches !== undefined ? STANDARD :
             test.msMatchesSelector !== undefined ? MSSTANDARD :
             test.webkitMatchesSelector !== undefined ? WEBKITSTANDARD :
             test.mozMatchesSelector !== undefined ? FIREFOXSTANDARD :
             -1;
    })();


    var ELEMENT = NodeTypes.ELEMENT;
    var DOCUMENT = NodeTypes.DOCUMENT;

    var is = function (element, selector) {
      var elem = element.dom();
      if (elem.nodeType !== ELEMENT) return false; // documents have querySelector but not matches

      // As of Chrome 34 / Safari 7.1 / FireFox 34, everyone except IE has the unprefixed function.
      // Still check for the others, but do it last.
      else if (selectorType === STANDARD) return elem.matches(selector);
      else if (selectorType === MSSTANDARD) return elem.msMatchesSelector(selector);
      else if (selectorType === WEBKITSTANDARD) return elem.webkitMatchesSelector(selector);
      else if (selectorType === FIREFOXSTANDARD) return elem.mozMatchesSelector(selector);
      else throw new Error('Browser lacks native selectors'); // unfortunately we can't throw this on startup :(
    };

    var bypassSelector = function (dom) {
      // Only elements and documents support querySelector
      return dom.nodeType !== ELEMENT && dom.nodeType !== DOCUMENT ||
              // IE fix for complex queries on empty nodes: http://jsfiddle.net/spyder/fv9ptr5L/
              dom.childElementCount === 0;
    };

    var all = function (selector, scope) {
      var base = scope === undefined ? document : scope.dom();
      return bypassSelector(base) ? [] : Arr.map(base.querySelectorAll(selector), Element.fromDom);
    };

    var one = function (selector, scope) {
      var base = scope === undefined ? document : scope.dom();
      return bypassSelector(base) ? Option.none() : Option.from(base.querySelector(selector)).map(Element.fromDom);
    };

    return {
      all: all,
      is: is,
      one: one
    };
  }
);

define(
  'ephox.sugar.api.dom.Compare',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.sand.api.Node',
    'ephox.sand.api.PlatformDetection',
    'ephox.sugar.api.search.Selectors'
  ],

  function (Arr, Fun, Node, PlatformDetection, Selectors) {

    var eq = function (e1, e2) {
      return e1.dom() === e2.dom();
    };

    var isEqualNode = function (e1, e2) {
      return e1.dom().isEqualNode(e2.dom());
    };

    var member = function (element, elements) {
      return Arr.exists(elements, Fun.curry(eq, element));
    };

    // DOM contains() method returns true if e1===e2, we define our contains() to return false (a node does not contain itself).
    var regularContains = function (e1, e2) {
      var d1 = e1.dom(), d2 = e2.dom();
      return d1 === d2 ? false : d1.contains(d2);
    };

    var ieContains = function (e1, e2) {
      // IE only implements the contains() method for Element nodes.
      // It fails for Text nodes, so implement it using compareDocumentPosition()
      // https://connect.microsoft.com/IE/feedback/details/780874/node-contains-is-incorrect
      // Note that compareDocumentPosition returns CONTAINED_BY if 'e2 *is_contained_by* e1':
      // Also, compareDocumentPosition defines a node containing itself as false.
      return Node.documentPositionContainedBy(e1.dom(), e2.dom());
    };

    var browser = PlatformDetection.detect().browser;

    // Returns: true if node e1 contains e2, otherwise false.
    // (returns false if e1===e2: A node does not contain itself).
    var contains = browser.isIE() ? ieContains : regularContains;

    return {
      eq: eq,
      isEqualNode: isEqualNode,
      member: member,
      contains: contains,

      // Only used by DomUniverse. Remove (or should Selectors.is move here?)
      is: Selectors.is
    };
  }
);

define(
  'ephox.sugar.api.search.Traverse',

  [
    'ephox.katamari.api.Type',
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Struct',
    'ephox.sugar.alien.Recurse',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element'
  ],

  function (Type, Arr, Fun, Option, Struct, Recurse, Compare, Element) {
    // The document associated with the current element
    var owner = function (element) {
      return Element.fromDom(element.dom().ownerDocument);
    };

    var documentElement = function (element) {
      // TODO: Avoid unnecessary wrap/unwrap here
      var doc = owner(element);
      return Element.fromDom(doc.dom().documentElement);
    };

    // The window element associated with the element
    var defaultView = function (element) {
      var el = element.dom();
      var defaultView = el.ownerDocument.defaultView;
      return Element.fromDom(defaultView);
    };

    var parent = function (element) {
      var dom = element.dom();
      return Option.from(dom.parentNode).map(Element.fromDom);
    };

    var findIndex = function (element) {
      return parent(element).bind(function (p) {
        // TODO: Refactor out children so we can avoid the constant unwrapping
        var kin = children(p);
        return Arr.findIndex(kin, function (elem) {
          return Compare.eq(element, elem);
        });
      });
    };

    var parents = function (element, isRoot) {
      var stop = Type.isFunction(isRoot) ? isRoot : Fun.constant(false);

      // This is used a *lot* so it needs to be performant, not recursive
      var dom = element.dom();
      var ret = [];

      while (dom.parentNode !== null && dom.parentNode !== undefined) {
        var rawParent = dom.parentNode;
        var parent = Element.fromDom(rawParent);
        ret.push(parent);

        if (stop(parent) === true) break;
        else dom = rawParent;
      }
      return ret;
    };

    var siblings = function (element) {
      // TODO: Refactor out children so we can just not add self instead of filtering afterwards
      var filterSelf = function (elements) {
        return Arr.filter(elements, function (x) {
          return !Compare.eq(element, x);
        });
      };

      return parent(element).map(children).map(filterSelf).getOr([]);
    };

    var offsetParent = function (element) {
      var dom = element.dom();
      return Option.from(dom.offsetParent).map(Element.fromDom);
    };

    var prevSibling = function (element) {
      var dom = element.dom();
      return Option.from(dom.previousSibling).map(Element.fromDom);
    };

    var nextSibling = function (element) {
      var dom = element.dom();
      return Option.from(dom.nextSibling).map(Element.fromDom);
    };

    var prevSiblings = function (element) {
      // This one needs to be reversed, so they're still in DOM order
      return Arr.reverse(Recurse.toArray(element, prevSibling));
    };

    var nextSiblings = function (element) {
      return Recurse.toArray(element, nextSibling);
    };

    var children = function (element) {
      var dom = element.dom();
      return Arr.map(dom.childNodes, Element.fromDom);
    };

    var child = function (element, index) {
      var children = element.dom().childNodes;
      return Option.from(children[index]).map(Element.fromDom);
    };

    var firstChild = function (element) {
      return child(element, 0);
    };

    var lastChild = function (element) {
      return child(element, element.dom().childNodes.length - 1);
    };

    var spot = Struct.immutable('element', 'offset');
    var leaf = function (element, offset) {
      var cs = children(element);
      return cs.length > 0 && offset < cs.length ? spot(cs[offset], 0) : spot(element, offset);
    };

    return {
      owner: owner,
      defaultView: defaultView,
      documentElement: documentElement,
      parent: parent,
      findIndex: findIndex,
      parents: parents,
      siblings: siblings,
      prevSibling: prevSibling,
      offsetParent: offsetParent,
      prevSiblings: prevSiblings,
      nextSibling: nextSibling,
      nextSiblings: nextSiblings,
      children: children,
      child: child,
      firstChild: firstChild,
      lastChild: lastChild,
      leaf: leaf
    };
  }
);

define(
  'ephox.sugar.api.dom.Insert',

  [
    'ephox.sugar.api.search.Traverse'
  ],

  function (Traverse) {
    var before = function (marker, element) {
      var parent = Traverse.parent(marker);
      parent.each(function (v) {
        v.dom().insertBefore(element.dom(), marker.dom());
      });
    };

    var after = function (marker, element) {
      var sibling = Traverse.nextSibling(marker);
      sibling.fold(function () {
        var parent = Traverse.parent(marker);
        parent.each(function (v) {
          append(v, element);
        });
      }, function (v) {
        before(v, element);
      });
    };

    var prepend = function (parent, element) {
      var firstChild = Traverse.firstChild(parent);
      firstChild.fold(function () {
        append(parent, element);
      }, function (v) {
        parent.dom().insertBefore(element.dom(), v.dom());
      });
    };

    var append = function (parent, element) {
      parent.dom().appendChild(element.dom());
    };

    var appendAt = function (parent, element, index) {
      Traverse.child(parent, index).fold(function () {
        append(parent, element);
      }, function (v) {
        before(v, element);
      });
    };

    var wrap = function (element, wrapper) {
      before(element, wrapper);
      append(wrapper, element);
    };

    return {
      before: before,
      after: after,
      prepend: prepend,
      append: append,
      appendAt: appendAt,
      wrap: wrap
    };
  }
);

define(
  'ephox.sugar.api.node.Node',

  [
    'ephox.sugar.api.node.NodeTypes'
  ],

  function (NodeTypes) {
    var name = function (element) {
      var r = element.dom().nodeName;
      return r.toLowerCase();
    };

    var type = function (element) {
      return element.dom().nodeType;
    };

    var value = function (element) {
      return element.dom().nodeValue;
    };

    var isType = function (t) {
      return function (element) {
        return type(element) === t;
      };
    };

    var isComment = function (element) {
      return type(element) === NodeTypes.COMMENT || name(element) === '#comment';
    };

    var isElement = isType(NodeTypes.ELEMENT);
    var isText = isType(NodeTypes.TEXT);
    var isDocument = isType(NodeTypes.DOCUMENT);

    return {
      name: name,
      type: type,
      value: value,
      isElement: isElement,
      isText: isText,
      isDocument: isDocument,
      isComment: isComment
    };
  }
);

define(
  'ephox.sugar.api.properties.Attr',

  [
    'ephox.katamari.api.Type',
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Obj',
    'ephox.sugar.api.node.Node',
    'global!Error',
    'global!console'
  ],

  /*
   * Direct attribute manipulation has been around since IE8, but
   * was apparently unstable until IE10.
   */
  function (Type, Arr, Obj, Node, Error, console) {
    var rawSet = function (dom, key, value) {
      /*
       * JQuery coerced everything to a string, and silently did nothing on text node/null/undefined.
       *
       * We fail on those invalid cases, only allowing numbers and booleans.
       */
      if (Type.isString(value) || Type.isBoolean(value) || Type.isNumber(value)) {
        dom.setAttribute(key, value + '');
      } else {
        console.error('Invalid call to Attr.set. Key ', key, ':: Value ', value, ':: Element ', dom);
        throw new Error('Attribute value was not simple');
      }
    };

    var set = function (element, key, value) {
      rawSet(element.dom(), key, value);
    };

    var setAll = function (element, attrs) {
      var dom = element.dom();
      Obj.each(attrs, function (v, k) {
        rawSet(dom, k, v);
      });
    };

    var get = function (element, key) {
      var v = element.dom().getAttribute(key);

      // undefined is the more appropriate value for JS, and this matches JQuery
      return v === null ? undefined : v;
    };

    var has = function (element, key) {
      var dom = element.dom();

      // return false for non-element nodes, no point in throwing an error
      return dom && dom.hasAttribute ? dom.hasAttribute(key) : false;
    };

    var remove = function (element, key) {
      element.dom().removeAttribute(key);
    };

    var hasNone = function (element) {
      var attrs = element.dom().attributes;
      return attrs === undefined || attrs === null || attrs.length === 0;
    };

    var clone = function (element) {
      return Arr.foldl(element.dom().attributes, function (acc, attr) {
        acc[attr.name] = attr.value;
        return acc;
      }, {});
    };

    var transferOne = function (source, destination, attr) {
      // NOTE: We don't want to clobber any existing attributes
      if (has(source, attr) && !has(destination, attr)) set(destination, attr, get(source, attr));        
    };

    // Transfer attributes(attrs) from source to destination, unless they are already present
    var transfer = function (source, destination, attrs) {
      if (!Node.isElement(source) || !Node.isElement(destination)) return;
      Arr.each(attrs, function (attr) {
        transferOne(source, destination, attr);
      });
    };

    return {
      clone: clone,
      set: set,
      setAll: setAll,
      get: get,
      has: has,
      remove: remove,
      hasNone: hasNone,
      transfer: transfer
    };
  }
);

define(
  'ephox.sugar.api.dom.InsertAll',

  [
    'ephox.katamari.api.Arr',
    'ephox.sugar.api.dom.Insert'
  ],

  function (Arr, Insert) {
    var before = function (marker, elements) {
      Arr.each(elements, function (x) {
        Insert.before(marker, x);
      });
    };

    var after = function (marker, elements) {
      Arr.each(elements, function (x, i) {
        var e = i === 0 ? marker : elements[i - 1];
        Insert.after(e, x);
      });
    };

    var prepend = function (parent, elements) {
      Arr.each(elements.slice().reverse(), function (x) {
        Insert.prepend(parent, x);
      });
    };

    var append = function (parent, elements) {
      Arr.each(elements, function (x) {
        Insert.append(parent, x);
      });
    };

    return {
      before: before,
      after: after,
      prepend: prepend,
      append: append
    };
  }
);

define(
  'ephox.sugar.api.dom.Remove',

  [
    'ephox.katamari.api.Arr',
    'ephox.sugar.api.dom.InsertAll',
    'ephox.sugar.api.search.Traverse'
  ],

  function (Arr, InsertAll, Traverse) {
    var empty = function (element) {
      // shortcut "empty node" trick. Requires IE 9.
      element.dom().textContent = '';

      // If the contents was a single empty text node, the above doesn't remove it. But, it's still faster in general
      // than removing every child node manually.
      // The following is (probably) safe for performance as 99.9% of the time the trick works and
      // Traverse.children will return an empty array.
      Arr.each(Traverse.children(element), function (rogue) {
        remove(rogue);
      });
    };

    var remove = function (element) {
      var dom = element.dom();
      if (dom.parentNode !== null)
        dom.parentNode.removeChild(dom);
    };

    var unwrap = function (wrapper) {
      var children = Traverse.children(wrapper);
      if (children.length > 0)
        InsertAll.before(wrapper, children);
      remove(wrapper);
    };

    return {
      empty: empty,
      remove: remove,
      unwrap: unwrap
    };
  }
);

define(
  'ephox.sugar.api.dom.Replication',

  [
    'ephox.sugar.api.properties.Attr',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.dom.Insert',
    'ephox.sugar.api.dom.InsertAll',
    'ephox.sugar.api.dom.Remove',
    'ephox.sugar.api.search.Traverse'
  ],

  function (Attr, Element, Insert, InsertAll, Remove, Traverse) {
    var clone = function (original, deep) {
      return Element.fromDom(original.dom().cloneNode(deep));
    };

    /** Shallow clone - just the tag, no children */
    var shallow = function (original) {
      return clone(original, false);
    };

    /** Deep clone - everything copied including children */
    var deep = function (original) {
      return clone(original, true);
    };

    /** Shallow clone, with a new tag */
    var shallowAs = function (original, tag) {
      var nu = Element.fromTag(tag);

      var attributes = Attr.clone(original);
      Attr.setAll(nu, attributes);

      return nu;
    };

    /** Deep clone, with a new tag */
    var copy = function (original, tag) {
      var nu = shallowAs(original, tag);

      // NOTE
      // previously this used serialisation:
      // nu.dom().innerHTML = original.dom().innerHTML;
      //
      // Clone should be equivalent (and faster), but if TD <-> TH toggle breaks, put it back.

      var cloneChildren = Traverse.children(deep(original));
      InsertAll.append(nu, cloneChildren);

      return nu;
    };

    /** Change the tag name, but keep all children */
    var mutate = function (original, tag) {
      var nu = shallowAs(original, tag);

      Insert.before(original, nu);
      var children = Traverse.children(original);
      InsertAll.append(nu, children);
      Remove.remove(original);
      return nu;
    };

    return {
      shallow: shallow,
      shallowAs: shallowAs,
      deep: deep,
      copy: copy,
      mutate: mutate
    };
  }
);

define(
  'ephox.sugar.api.node.Fragment',

  [
    'ephox.katamari.api.Arr',
    'ephox.sugar.api.node.Element',
    'global!document'
  ],

  function (Arr, Element, document) {
    var fromElements = function (elements, scope) {
      var doc = scope || document;
      var fragment = doc.createDocumentFragment();
      Arr.each(elements, function (element) {
        fragment.appendChild(element.dom());
      });
      return Element.fromDom(fragment);
    };

    return {
      fromElements: fromElements
    };
  }
);

/**
 * ElementType.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.dom.ElementType',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.sugar.api.node.Node'
  ],
  function (Arr, Fun, Node) {
    var blocks = [
      'article', 'aside', 'details', 'div', 'dt', 'figcaption', 'footer',
      'form', 'fieldset', 'header', 'hgroup', 'html', 'main', 'nav',
      'section', 'summary', 'body', 'p', 'dl', 'multicol', 'dd', 'figure',
      'address', 'center', 'blockquote', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
      'listing', 'xmp', 'pre', 'plaintext', 'menu', 'dir', 'ul', 'ol', 'li', 'hr',
      'table', 'tbody', 'thead', 'tfoot', 'th', 'tr', 'td', 'caption'
    ];

    var voids = [
      'area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', 'img', 'input',
      'isindex', 'link', 'meta', 'param', 'embed', 'source', 'wbr', 'track'
    ];

    var tableCells = ['td', 'th'];

    var textBlocks = [
      'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'div', 'address', 'pre', 'form',
      'blockquote', 'center', 'dir', 'fieldset', 'header', 'footer', 'article',
      'section', 'hgroup', 'aside', 'nav', 'figure'
    ];

    var headings = ['h1', 'h2', 'h3', 'h4', 'h5', 'h6'];

    var lazyLookup = function (items) {
      var lookup;
      return function (node) {
        lookup = lookup ? lookup : Arr.mapToObject(items, Fun.constant(true));
        return lookup.hasOwnProperty(Node.name(node));
      };
    };

    var isHeading = lazyLookup(headings);

    var isBlock = lazyLookup(blocks);

    var isInline = function (node) {
      return Node.isElement(node) && !isBlock(node);
    };

    return {
      isBlock: isBlock,
      isInline: isInline,
      isHeading: isHeading,
      isTextBlock: lazyLookup(textBlocks),
      isVoid: lazyLookup(voids),
      isTableCell: lazyLookup(tableCells)
    };
  }
);

/**
 * Parents.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.dom.Parents',
  [
    'ephox.katamari.api.Fun',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.search.Traverse'
  ],
  function (Fun, Compare, Traverse) {
    var dropLast = function (xs) {
      return xs.slice(0, -1);
    };

    var parentsUntil = function (startNode, rootElm, predicate) {
      if (Compare.contains(rootElm, startNode)) {
        return dropLast(Traverse.parents(startNode, function (elm) {
          return predicate(elm) || Compare.eq(elm, rootElm);
        }));
      } else {
        return [];
      }
    };

    var parents = function (startNode, rootElm) {
      return parentsUntil(startNode, rootElm, Fun.constant(false));
    };

    var parentsAndSelf = function (startNode, rootElm) {
      return [startNode].concat(parents(startNode, rootElm));
    };

    return {
      parentsUntil: parentsUntil,
      parents: parents,
      parentsAndSelf: parentsAndSelf
    };
  }
);

define(
  'ephox.katamari.api.Options',

  [
    'ephox.katamari.api.Option'
  ],

  function (Option) {
    /** cat :: [Option a] -> [a] */
    var cat = function (arr) {
      var r = [];
      var push = function (x) {
        r.push(x);
      };
      for (var i = 0; i < arr.length; i++) {
        arr[i].each(push);
      }
      return r;
    };

    /** findMap :: ([a], (a, Int -> Option b)) -> Option b */
    var findMap = function (arr, f) {
      for (var i = 0; i < arr.length; i++) {
        var r = f(arr[i], i);
        if (r.isSome()) {
          return r;
        }
      }
      return Option.none();
    };

    /**
     * if all elements in arr are 'some', their inner values are passed as arguments to f
     * f must have arity arr.length
    */
    var liftN = function(arr, f) {
      var r = [];
      for (var i = 0; i < arr.length; i++) {
        var x = arr[i];
        if (x.isSome()) {
          r.push(x.getOrDie());
        } else {
          return Option.none();
        }
      }
      return Option.some(f.apply(null, r));
    };

    return {
      cat: cat,
      findMap: findMap,
      liftN: liftN
    };
  }
);

/**
 * SelectionUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.selection.SelectionUtils',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Options',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Node',
    'ephox.sugar.api.search.Traverse',
    'tinymce.core.dom.NodeType'
  ],
  function (Arr, Fun, Option, Options, Compare, Element, Node, Traverse, NodeType) {
    var getStartNode = function (rng) {
      var sc = rng.startContainer, so = rng.startOffset;
      if (NodeType.isText(sc)) {
        return so === 0 ? Option.some(Element.fromDom(sc)) : Option.none();
      } else {
        return Option.from(sc.childNodes[so]).map(Element.fromDom);
      }
    };

    var getEndNode = function (rng) {
      var ec = rng.endContainer, eo = rng.endOffset;
      if (NodeType.isText(ec)) {
        return eo === ec.data.length ? Option.some(Element.fromDom(ec)) : Option.none();
      } else {
        return Option.from(ec.childNodes[eo - 1]).map(Element.fromDom);
      }
    };

    var getFirstChildren = function (node) {
      return Traverse.firstChild(node).fold(
        Fun.constant([node]),
        function (child) {
          return [node].concat(getFirstChildren(child));
        }
      );
    };

    var getLastChildren = function (node) {
      return Traverse.lastChild(node).fold(
        Fun.constant([node]),
        function (child) {
          if (Node.name(child) === 'br') {
            return Traverse.prevSibling(child).map(function (sibling) {
              return [node].concat(getLastChildren(sibling));
            }).getOr([]);
          } else {
            return [node].concat(getLastChildren(child));
          }
        }
      );
    };

    var hasAllContentsSelected = function (elm, rng) {
      return Options.liftN([getStartNode(rng), getEndNode(rng)], function (startNode, endNode) {
        var start = Arr.find(getFirstChildren(elm), Fun.curry(Compare.eq, startNode));
        var end = Arr.find(getLastChildren(elm), Fun.curry(Compare.eq, endNode));
        return start.isSome() && end.isSome();
      }).getOr(false);
    };

    return {
      hasAllContentsSelected: hasAllContentsSelected
    };
  }
);

/**
 * FragmentReader.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.selection.FragmentReader',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.sugar.api.dom.Insert',
    'ephox.sugar.api.dom.Replication',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Fragment',
    'ephox.sugar.api.node.Node',
    'tinymce.core.dom.ElementType',
    'tinymce.core.dom.Parents',
    'tinymce.core.selection.SelectionUtils'
  ],
  function (Arr, Fun, Insert, Replication, Element, Fragment, Node, ElementType, Parents, SelectionUtils) {
    var findParentListContainer = function (parents) {
      return Arr.find(parents, function (elm) {
        return Node.name(elm) === 'ul' || Node.name(elm) === 'ol';
      });
    };

    var getFullySelectedListWrappers = function (parents, rng) {
      return Arr.find(parents, function (elm) {
        return Node.name(elm) === 'li' && SelectionUtils.hasAllContentsSelected(elm, rng);
      }).fold(
        Fun.constant([]),
        function (li) {
          return findParentListContainer(parents).map(function (listCont) {
            return [
              Element.fromTag('li'),
              Element.fromTag(Node.name(listCont))
            ];
          }).getOr([]);
        }
      );
    };

    var wrap = function (innerElm, elms) {
      var wrapped = Arr.foldl(elms, function (acc, elm) {
        Insert.append(elm, acc);
        return elm;
      }, innerElm);
      return elms.length > 0 ? Fragment.fromElements([wrapped]) : wrapped;
    };

    var getWrapElements = function (rootNode, rng) {
      var parents = Parents.parentsAndSelf(Element.fromDom(rng.commonAncestorContainer), Element.fromDom(rootNode));
      var wrapElements = Arr.filter(parents, function (elm) {
        return ElementType.isInline(elm) || ElementType.isHeading(elm);
      });
      var fullWrappers = getFullySelectedListWrappers(parents, rng);
      return Arr.map(wrapElements.concat(fullWrappers), Replication.shallow);
    };

    var getFragmentFromRange = function (rootNode, rng) {
      return wrap(Element.fromDom(rng.cloneContents()), getWrapElements(rootNode, rng));
    };

    var read = function (rootNode, rng) {
      return rng.collapsed ? Fragment.fromElements([]) : getFragmentFromRange(rootNode, rng);
    };

    return {
      read: read
    };
  }
);

/**
 * Selection.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles text and control selection it's an crossbrowser utility class.
 * Consult the TinyMCE Wiki API for more details and examples on how to use this class.
 *
 * @class tinymce.dom.Selection
 * @example
 * // Getting the currently selected node for the active editor
 * alert(tinymce.activeEditor.selection.getNode().nodeName);
 */
define(
  'tinymce.core.dom.Selection',
  [
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.BookmarkManager',
    'tinymce.core.dom.ControlSelection',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.dom.ScrollIntoView',
    'tinymce.core.dom.TreeWalker',
    'tinymce.core.dom.TridentSelection',
    'tinymce.core.Env',
    'tinymce.core.selection.FragmentReader',
    'tinymce.core.text.Zwsp',
    'tinymce.core.util.Tools'
  ],
  function (CaretPosition, BookmarkManager, ControlSelection, NodeType, RangeUtils, ScrollIntoView, TreeWalker, TridentSelection, Env, FragmentReader, Zwsp, Tools) {
    var each = Tools.each, trim = Tools.trim;
    var isIE = Env.ie;

    /**
     * Constructs a new selection instance.
     *
     * @constructor
     * @method Selection
     * @param {tinymce.dom.DOMUtils} dom DOMUtils object reference.
     * @param {Window} win Window to bind the selection object to.
     * @param {tinymce.Editor} editor Editor instance of the selection.
     * @param {tinymce.dom.Serializer} serializer DOM serialization class to use for getContent.
     */
    function Selection(dom, win, serializer, editor) {
      var self = this;

      self.dom = dom;
      self.win = win;
      self.serializer = serializer;
      self.editor = editor;
      self.bookmarkManager = new BookmarkManager(self);
      self.controlSelection = new ControlSelection(self, editor);

      // No W3C Range support
      if (!self.win.getSelection) {
        self.tridentSel = new TridentSelection(self);
      }
    }

    Selection.prototype = {
      /**
       * Move the selection cursor range to the specified node and offset.
       * If there is no node specified it will move it to the first suitable location within the body.
       *
       * @method setCursorLocation
       * @param {Node} node Optional node to put the cursor in.
       * @param {Number} offset Optional offset from the start of the node to put the cursor at.
       */
      setCursorLocation: function (node, offset) {
        var self = this, rng = self.dom.createRng();

        if (!node) {
          self._moveEndPoint(rng, self.editor.getBody(), true);
          self.setRng(rng);
        } else {
          rng.setStart(node, offset);
          rng.setEnd(node, offset);
          self.setRng(rng);
          self.collapse(false);
        }
      },

      /**
       * Returns the selected contents using the DOM serializer passed in to this class.
       *
       * @method getContent
       * @param {Object} args Optional settings class with for example output format text or html.
       * @return {String} Selected contents in for example HTML format.
       * @example
       * // Alerts the currently selected contents
       * alert(tinymce.activeEditor.selection.getContent());
       *
       * // Alerts the currently selected contents as plain text
       * alert(tinymce.activeEditor.selection.getContent({format: 'text'}));
       */
      getContent: function (args) {
        var self = this, rng = self.getRng(), tmpElm = self.dom.create("body");
        var se = self.getSel(), whiteSpaceBefore, whiteSpaceAfter, fragment;

        args = args || {};
        whiteSpaceBefore = whiteSpaceAfter = '';
        args.get = true;
        args.format = args.format || 'html';
        args.selection = true;
        self.editor.fire('BeforeGetContent', args);

        if (args.format === 'text') {
          return self.isCollapsed() ? '' : Zwsp.trim(rng.text || (se.toString ? se.toString() : ''));
        }

        if (rng.cloneContents) {
          fragment = args.contextual ? FragmentReader.read(self.editor.getBody(), rng).dom() : rng.cloneContents();
          if (fragment) {
            tmpElm.appendChild(fragment);
          }
        } else if (rng.item !== undefined || rng.htmlText !== undefined) {
          // IE will produce invalid markup if elements are present that
          // it doesn't understand like custom elements or HTML5 elements.
          // Adding a BR in front of the contents and then remoiving it seems to fix it though.
          tmpElm.innerHTML = '<br>' + (rng.item ? rng.item(0).outerHTML : rng.htmlText);
          tmpElm.removeChild(tmpElm.firstChild);
        } else {
          tmpElm.innerHTML = rng.toString();
        }

        // Keep whitespace before and after
        if (/^\s/.test(tmpElm.innerHTML)) {
          whiteSpaceBefore = ' ';
        }

        if (/\s+$/.test(tmpElm.innerHTML)) {
          whiteSpaceAfter = ' ';
        }

        args.getInner = true;

        args.content = self.isCollapsed() ? '' : whiteSpaceBefore + self.serializer.serialize(tmpElm, args) + whiteSpaceAfter;
        self.editor.fire('GetContent', args);

        return args.content;
      },

      /**
       * Sets the current selection to the specified content. If any contents is selected it will be replaced
       * with the contents passed in to this function. If there is no selection the contents will be inserted
       * where the caret is placed in the editor/page.
       *
       * @method setContent
       * @param {String} content HTML contents to set could also be other formats depending on settings.
       * @param {Object} args Optional settings object with for example data format.
       * @example
       * // Inserts some HTML contents at the current selection
       * tinymce.activeEditor.selection.setContent('<strong>Some contents</strong>');
       */
      setContent: function (content, args) {
        var self = this, rng = self.getRng(), caretNode, doc = self.win.document, frag, temp;

        args = args || { format: 'html' };
        args.set = true;
        args.selection = true;
        args.content = content;

        // Dispatch before set content event
        if (!args.no_events) {
          self.editor.fire('BeforeSetContent', args);
        }

        content = args.content;

        if (rng.insertNode) {
          // Make caret marker since insertNode places the caret in the beginning of text after insert
          content += '<span id="__caret">_</span>';

          // Delete and insert new node
          if (rng.startContainer == doc && rng.endContainer == doc) {
            // WebKit will fail if the body is empty since the range is then invalid and it can't insert contents
            doc.body.innerHTML = content;
          } else {
            rng.deleteContents();

            if (doc.body.childNodes.length === 0) {
              doc.body.innerHTML = content;
            } else {
              // createContextualFragment doesn't exists in IE 9 DOMRanges
              if (rng.createContextualFragment) {
                rng.insertNode(rng.createContextualFragment(content));
              } else {
                // Fake createContextualFragment call in IE 9
                frag = doc.createDocumentFragment();
                temp = doc.createElement('div');

                frag.appendChild(temp);
                temp.outerHTML = content;

                rng.insertNode(frag);
              }
            }
          }

          // Move to caret marker
          caretNode = self.dom.get('__caret');

          // Make sure we wrap it compleatly, Opera fails with a simple select call
          rng = doc.createRange();
          rng.setStartBefore(caretNode);
          rng.setEndBefore(caretNode);
          self.setRng(rng);

          // Remove the caret position
          self.dom.remove('__caret');

          try {
            self.setRng(rng);
          } catch (ex) {
            // Might fail on Opera for some odd reason
          }
        } else {
          if (rng.item) {
            // Delete content and get caret text selection
            doc.execCommand('Delete', false, null);
            rng = self.getRng();
          }

          // Explorer removes spaces from the beginning of pasted contents
          if (/^\s+/.test(content)) {
            rng.pasteHTML('<span id="__mce_tmp">_</span>' + content);
            self.dom.remove('__mce_tmp');
          } else {
            rng.pasteHTML(content);
          }
        }

        // Dispatch set content event
        if (!args.no_events) {
          self.editor.fire('SetContent', args);
        }
      },

      /**
       * Returns the start element of a selection range. If the start is in a text
       * node the parent element will be returned.
       *
       * @method getStart
       * @param {Boolean} real Optional state to get the real parent when the selection is collapsed not the closest element.
       * @return {Element} Start element of selection range.
       */
      getStart: function (real) {
        var self = this, rng = self.getRng(), startElement, parentElement, checkRng, node;

        if (rng.duplicate || rng.item) {
          // Control selection, return first item
          if (rng.item) {
            return rng.item(0);
          }

          // Get start element
          checkRng = rng.duplicate();
          checkRng.collapse(1);
          startElement = checkRng.parentElement();
          if (startElement.ownerDocument !== self.dom.doc) {
            startElement = self.dom.getRoot();
          }

          // Check if range parent is inside the start element, then return the inner parent element
          // This will fix issues when a single element is selected, IE would otherwise return the wrong start element
          parentElement = node = rng.parentElement();
          while ((node = node.parentNode)) {
            if (node == startElement) {
              startElement = parentElement;
              break;
            }
          }

          return startElement;
        }

        startElement = rng.startContainer;

        if (startElement.nodeType == 1 && startElement.hasChildNodes()) {
          if (!real || !rng.collapsed) {
            startElement = startElement.childNodes[Math.min(startElement.childNodes.length - 1, rng.startOffset)];
          }
        }

        if (startElement && startElement.nodeType == 3) {
          return startElement.parentNode;
        }

        return startElement;
      },

      /**
       * Returns the end element of a selection range. If the end is in a text
       * node the parent element will be returned.
       *
       * @method getEnd
       * @param {Boolean} real Optional state to get the real parent when the selection is collapsed not the closest element.
       * @return {Element} End element of selection range.
       */
      getEnd: function (real) {
        var self = this, rng = self.getRng(), endElement, endOffset;

        if (rng.duplicate || rng.item) {
          if (rng.item) {
            return rng.item(0);
          }

          rng = rng.duplicate();
          rng.collapse(0);
          endElement = rng.parentElement();
          if (endElement.ownerDocument !== self.dom.doc) {
            endElement = self.dom.getRoot();
          }

          if (endElement && endElement.nodeName == 'BODY') {
            return endElement.lastChild || endElement;
          }

          return endElement;
        }

        endElement = rng.endContainer;
        endOffset = rng.endOffset;

        if (endElement.nodeType == 1 && endElement.hasChildNodes()) {
          if (!real || !rng.collapsed) {
            endElement = endElement.childNodes[endOffset > 0 ? endOffset - 1 : endOffset];
          }
        }

        if (endElement && endElement.nodeType == 3) {
          return endElement.parentNode;
        }

        return endElement;
      },

      /**
       * Returns a bookmark location for the current selection. This bookmark object
       * can then be used to restore the selection after some content modification to the document.
       *
       * @method getBookmark
       * @param {Number} type Optional state if the bookmark should be simple or not. Default is complex.
       * @param {Boolean} normalized Optional state that enables you to get a position that it would be after normalization.
       * @return {Object} Bookmark object, use moveToBookmark with this object to restore the selection.
       * @example
       * // Stores a bookmark of the current selection
       * var bm = tinymce.activeEditor.selection.getBookmark();
       *
       * tinymce.activeEditor.setContent(tinymce.activeEditor.getContent() + 'Some new content');
       *
       * // Restore the selection bookmark
       * tinymce.activeEditor.selection.moveToBookmark(bm);
       */
      getBookmark: function (type, normalized) {
        return this.bookmarkManager.getBookmark(type, normalized);
      },

      /**
       * Restores the selection to the specified bookmark.
       *
       * @method moveToBookmark
       * @param {Object} bookmark Bookmark to restore selection from.
       * @return {Boolean} true/false if it was successful or not.
       * @example
       * // Stores a bookmark of the current selection
       * var bm = tinymce.activeEditor.selection.getBookmark();
       *
       * tinymce.activeEditor.setContent(tinymce.activeEditor.getContent() + 'Some new content');
       *
       * // Restore the selection bookmark
       * tinymce.activeEditor.selection.moveToBookmark(bm);
       */
      moveToBookmark: function (bookmark) {
        return this.bookmarkManager.moveToBookmark(bookmark);
      },

      /**
       * Selects the specified element. This will place the start and end of the selection range around the element.
       *
       * @method select
       * @param {Element} node HTML DOM element to select.
       * @param {Boolean} content Optional bool state if the contents should be selected or not on non IE browser.
       * @return {Element} Selected element the same element as the one that got passed in.
       * @example
       * // Select the first paragraph in the active editor
       * tinymce.activeEditor.selection.select(tinymce.activeEditor.dom.select('p')[0]);
       */
      select: function (node, content) {
        var self = this, dom = self.dom, rng = dom.createRng(), idx;

        // Clear stored range set by FocusManager
        self.lastFocusBookmark = null;

        if (node) {
          if (!content && self.controlSelection.controlSelect(node)) {
            return;
          }

          idx = dom.nodeIndex(node);
          rng.setStart(node.parentNode, idx);
          rng.setEnd(node.parentNode, idx + 1);

          // Find first/last text node or BR element
          if (content) {
            self._moveEndPoint(rng, node, true);
            self._moveEndPoint(rng, node);
          }

          self.setRng(rng);
        }

        return node;
      },

      /**
       * Returns true/false if the selection range is collapsed or not. Collapsed means if it's a caret or a larger selection.
       *
       * @method isCollapsed
       * @return {Boolean} true/false state if the selection range is collapsed or not.
       * Collapsed means if it's a caret or a larger selection.
       */
      isCollapsed: function () {
        var self = this, rng = self.getRng(), sel = self.getSel();

        if (!rng || rng.item) {
          return false;
        }

        if (rng.compareEndPoints) {
          return rng.compareEndPoints('StartToEnd', rng) === 0;
        }

        return !sel || rng.collapsed;
      },

      /**
       * Collapse the selection to start or end of range.
       *
       * @method collapse
       * @param {Boolean} toStart Optional boolean state if to collapse to end or not. Defaults to false.
       */
      collapse: function (toStart) {
        var self = this, rng = self.getRng(), node;

        // Control range on IE
        if (rng.item) {
          node = rng.item(0);
          rng = self.win.document.body.createTextRange();
          rng.moveToElementText(node);
        }

        rng.collapse(!!toStart);
        self.setRng(rng);
      },

      /**
       * Returns the browsers internal selection object.
       *
       * @method getSel
       * @return {Selection} Internal browser selection object.
       */
      getSel: function () {
        var win = this.win;

        return win.getSelection ? win.getSelection() : win.document.selection;
      },

      /**
       * Returns the browsers internal range object.
       *
       * @method getRng
       * @param {Boolean} w3c Forces a compatible W3C range on IE.
       * @return {Range} Internal browser range object.
       * @see http://www.quirksmode.org/dom/range_intro.html
       * @see http://www.dotvoid.com/2001/03/using-the-range-object-in-mozilla/
       */
      getRng: function (w3c) {
        var self = this, selection, rng, elm, doc, ieRng, evt;

        function tryCompareBoundaryPoints(how, sourceRange, destinationRange) {
          try {
            return sourceRange.compareBoundaryPoints(how, destinationRange);
          } catch (ex) {
            // Gecko throws wrong document exception if the range points
            // to nodes that where removed from the dom #6690
            // Browsers should mutate existing DOMRange instances so that they always point
            // to something in the document this is not the case in Gecko works fine in IE/WebKit/Blink
            // For performance reasons just return -1
            return -1;
          }
        }

        if (!self.win) {
          return null;
        }

        doc = self.win.document;

        if (typeof doc === 'undefined' || doc === null) {
          return null;
        }

        // Use last rng passed from FocusManager if it's available this enables
        // calls to editor.selection.getStart() to work when caret focus is lost on IE
        if (!w3c && self.lastFocusBookmark) {
          var bookmark = self.lastFocusBookmark;

          // Convert bookmark to range IE 11 fix
          if (bookmark.startContainer) {
            rng = doc.createRange();
            rng.setStart(bookmark.startContainer, bookmark.startOffset);
            rng.setEnd(bookmark.endContainer, bookmark.endOffset);
          } else {
            rng = bookmark;
          }

          return rng;
        }

        // Found tridentSel object then we need to use that one
        if (w3c && self.tridentSel) {
          return self.tridentSel.getRangeAt(0);
        }

        try {
          if ((selection = self.getSel())) {
            if (selection.rangeCount > 0) {
              rng = selection.getRangeAt(0);
            } else {
              rng = selection.createRange ? selection.createRange() : doc.createRange();
            }
          }
        } catch (ex) {
          // IE throws unspecified error here if TinyMCE is placed in a frame/iframe
        }

        evt = self.editor.fire('GetSelectionRange', { range: rng });
        if (evt.range !== rng) {
          return evt.range;
        }

        // We have W3C ranges and it's IE then fake control selection since IE9 doesn't handle that correctly yet
        // IE 11 doesn't support the selection object so we check for that as well
        if (isIE && rng && rng.setStart && doc.selection) {
          try {
            // IE will sometimes throw an exception here
            ieRng = doc.selection.createRange();
          } catch (ex) {
            // Ignore
          }

          if (ieRng && ieRng.item) {
            elm = ieRng.item(0);
            rng = doc.createRange();
            rng.setStartBefore(elm);
            rng.setEndAfter(elm);
          }
        }

        // No range found then create an empty one
        // This can occur when the editor is placed in a hidden container element on Gecko
        // Or on IE when there was an exception
        if (!rng) {
          rng = doc.createRange ? doc.createRange() : doc.body.createTextRange();
        }

        // If range is at start of document then move it to start of body
        if (rng.setStart && rng.startContainer.nodeType === 9 && rng.collapsed) {
          elm = self.dom.getRoot();
          rng.setStart(elm, 0);
          rng.setEnd(elm, 0);
        }

        if (self.selectedRange && self.explicitRange) {
          if (tryCompareBoundaryPoints(rng.START_TO_START, rng, self.selectedRange) === 0 &&
            tryCompareBoundaryPoints(rng.END_TO_END, rng, self.selectedRange) === 0) {
            // Safari, Opera and Chrome only ever select text which causes the range to change.
            // This lets us use the originally set range if the selection hasn't been changed by the user.
            rng = self.explicitRange;
          } else {
            self.selectedRange = null;
            self.explicitRange = null;
          }
        }

        return rng;
      },

      /**
       * Changes the selection to the specified DOM range.
       *
       * @method setRng
       * @param {Range} rng Range to select.
       * @param {Boolean} forward Optional boolean if the selection is forwards or backwards.
       */
      setRng: function (rng, forward) {
        var self = this, sel, node, evt;

        if (!rng) {
          return;
        }

        // Is IE specific range
        if (rng.select) {
          self.explicitRange = null;

          try {
            rng.select();
          } catch (ex) {
            // Needed for some odd IE bug #1843306
          }

          return;
        }

        if (!self.tridentSel) {
          sel = self.getSel();

          evt = self.editor.fire('SetSelectionRange', { range: rng, forward: forward });
          rng = evt.range;

          if (sel) {
            self.explicitRange = rng;

            try {
              sel.removeAllRanges();
              sel.addRange(rng);
            } catch (ex) {
              // IE might throw errors here if the editor is within a hidden container and selection is changed
            }

            // Forward is set to false and we have an extend function
            if (forward === false && sel.extend) {
              sel.collapse(rng.endContainer, rng.endOffset);
              sel.extend(rng.startContainer, rng.startOffset);
            }

            // adding range isn't always successful so we need to check range count otherwise an exception can occur
            self.selectedRange = sel.rangeCount > 0 ? sel.getRangeAt(0) : null;
          }

          // WebKit egde case selecting images works better using setBaseAndExtent when the image is floated
          if (!rng.collapsed && rng.startContainer === rng.endContainer && sel.setBaseAndExtent && !Env.ie) {
            if (rng.endOffset - rng.startOffset < 2) {
              if (rng.startContainer.hasChildNodes()) {
                node = rng.startContainer.childNodes[rng.startOffset];
                if (node && node.tagName === 'IMG') {
                  sel.setBaseAndExtent(
                    rng.startContainer,
                    rng.startOffset,
                    rng.endContainer,
                    rng.endOffset
                  );

                  // Since the setBaseAndExtent is fixed in more recent Blink versions we
                  // need to detect if it's doing the wrong thing and falling back to the
                  // crazy incorrect behavior api call since that seems to be the only way
                  // to get it to work on Safari WebKit as of 2017-02-23
                  if (sel.anchorNode !== rng.startContainer || sel.focusNode !== rng.endContainer) {
                    sel.setBaseAndExtent(node, 0, node, 1);
                  }
                }
              }
            }
          }

          self.editor.fire('AfterSetSelectionRange', { range: rng, forward: forward });
        } else {
          // Is W3C Range fake range on IE
          if (rng.cloneRange) {
            try {
              self.tridentSel.addRange(rng);
            } catch (ex) {
              //IE9 throws an error here if called before selection is placed in the editor
            }
          }
        }
      },

      /**
       * Sets the current selection to the specified DOM element.
       *
       * @method setNode
       * @param {Element} elm Element to set as the contents of the selection.
       * @return {Element} Returns the element that got passed in.
       * @example
       * // Inserts a DOM node at current selection/caret location
       * tinymce.activeEditor.selection.setNode(tinymce.activeEditor.dom.create('img', {src: 'some.gif', title: 'some title'}));
       */
      setNode: function (elm) {
        var self = this;

        self.setContent(self.dom.getOuterHTML(elm));

        return elm;
      },

      /**
       * Returns the currently selected element or the common ancestor element for both start and end of the selection.
       *
       * @method getNode
       * @return {Element} Currently selected element or common ancestor element.
       * @example
       * // Alerts the currently selected elements node name
       * alert(tinymce.activeEditor.selection.getNode().nodeName);
       */
      getNode: function () {
        var self = this, rng = self.getRng(), elm;
        var startContainer, endContainer, startOffset, endOffset, root = self.dom.getRoot();

        function skipEmptyTextNodes(node, forwards) {
          var orig = node;

          while (node && node.nodeType === 3 && node.length === 0) {
            node = forwards ? node.nextSibling : node.previousSibling;
          }

          return node || orig;
        }

        // Range maybe lost after the editor is made visible again
        if (!rng) {
          return root;
        }

        startContainer = rng.startContainer;
        endContainer = rng.endContainer;
        startOffset = rng.startOffset;
        endOffset = rng.endOffset;

        if (rng.setStart) {
          elm = rng.commonAncestorContainer;

          // Handle selection a image or other control like element such as anchors
          if (!rng.collapsed) {
            if (startContainer == endContainer) {
              if (endOffset - startOffset < 2) {
                if (startContainer.hasChildNodes()) {
                  elm = startContainer.childNodes[startOffset];
                }
              }
            }

            // If the anchor node is a element instead of a text node then return this element
            //if (tinymce.isWebKit && sel.anchorNode && sel.anchorNode.nodeType == 1)
            // return sel.anchorNode.childNodes[sel.anchorOffset];

            // Handle cases where the selection is immediately wrapped around a node and return that node instead of it's parent.
            // This happens when you double click an underlined word in FireFox.
            if (startContainer.nodeType === 3 && endContainer.nodeType === 3) {
              if (startContainer.length === startOffset) {
                startContainer = skipEmptyTextNodes(startContainer.nextSibling, true);
              } else {
                startContainer = startContainer.parentNode;
              }

              if (endOffset === 0) {
                endContainer = skipEmptyTextNodes(endContainer.previousSibling, false);
              } else {
                endContainer = endContainer.parentNode;
              }

              if (startContainer && startContainer === endContainer) {
                return startContainer;
              }
            }
          }

          if (elm && elm.nodeType == 3) {
            return elm.parentNode;
          }

          return elm;
        }

        elm = rng.item ? rng.item(0) : rng.parentElement();

        // IE 7 might return elements outside the iframe
        if (elm.ownerDocument !== self.win.document) {
          elm = root;
        }

        return elm;
      },

      getSelectedBlocks: function (startElm, endElm) {
        var self = this, dom = self.dom, node, root, selectedBlocks = [];

        root = dom.getRoot();
        startElm = dom.getParent(startElm || self.getStart(), dom.isBlock);
        endElm = dom.getParent(endElm || self.getEnd(), dom.isBlock);

        if (startElm && startElm != root) {
          selectedBlocks.push(startElm);
        }

        if (startElm && endElm && startElm != endElm) {
          node = startElm;

          var walker = new TreeWalker(startElm, root);
          while ((node = walker.next()) && node != endElm) {
            if (dom.isBlock(node)) {
              selectedBlocks.push(node);
            }
          }
        }

        if (endElm && startElm != endElm && endElm != root) {
          selectedBlocks.push(endElm);
        }

        return selectedBlocks;
      },

      isForward: function () {
        var dom = this.dom, sel = this.getSel(), anchorRange, focusRange;

        // No support for selection direction then always return true
        if (!sel || !sel.anchorNode || !sel.focusNode) {
          return true;
        }

        anchorRange = dom.createRng();
        anchorRange.setStart(sel.anchorNode, sel.anchorOffset);
        anchorRange.collapse(true);

        focusRange = dom.createRng();
        focusRange.setStart(sel.focusNode, sel.focusOffset);
        focusRange.collapse(true);

        return anchorRange.compareBoundaryPoints(anchorRange.START_TO_START, focusRange) <= 0;
      },

      normalize: function () {
        var self = this, rng = self.getRng();

        if (Env.range && new RangeUtils(self.dom).normalize(rng)) {
          self.setRng(rng, self.isForward());
        }

        return rng;
      },

      /**
       * Executes callback when the current selection starts/stops matching the specified selector. The current
       * state will be passed to the callback as it's first argument.
       *
       * @method selectorChanged
       * @param {String} selector CSS selector to check for.
       * @param {function} callback Callback with state and args when the selector is matches or not.
       */
      selectorChanged: function (selector, callback) {
        var self = this, currentSelectors;

        if (!self.selectorChangedData) {
          self.selectorChangedData = {};
          currentSelectors = {};

          self.editor.on('NodeChange', function (e) {
            var node = e.element, dom = self.dom, parents = dom.getParents(node, null, dom.getRoot()), matchedSelectors = {};

            // Check for new matching selectors
            each(self.selectorChangedData, function (callbacks, selector) {
              each(parents, function (node) {
                if (dom.is(node, selector)) {
                  if (!currentSelectors[selector]) {
                    // Execute callbacks
                    each(callbacks, function (callback) {
                      callback(true, { node: node, selector: selector, parents: parents });
                    });

                    currentSelectors[selector] = callbacks;
                  }

                  matchedSelectors[selector] = callbacks;
                  return false;
                }
              });
            });

            // Check if current selectors still match
            each(currentSelectors, function (callbacks, selector) {
              if (!matchedSelectors[selector]) {
                delete currentSelectors[selector];

                each(callbacks, function (callback) {
                  callback(false, { node: node, selector: selector, parents: parents });
                });
              }
            });
          });
        }

        // Add selector listeners
        if (!self.selectorChangedData[selector]) {
          self.selectorChangedData[selector] = [];
        }

        self.selectorChangedData[selector].push(callback);

        return self;
      },

      getScrollContainer: function () {
        var scrollContainer, node = this.dom.getRoot();

        while (node && node.nodeName != 'BODY') {
          if (node.scrollHeight > node.clientHeight) {
            scrollContainer = node;
            break;
          }

          node = node.parentNode;
        }

        return scrollContainer;
      },

      scrollIntoView: function (elm, alignToTop) {
        ScrollIntoView.scrollIntoView(this.editor, elm, alignToTop);
      },

      placeCaretAt: function (clientX, clientY) {
        this.setRng(RangeUtils.getCaretRangeFromPoint(clientX, clientY, this.editor.getDoc()));
      },

      _moveEndPoint: function (rng, node, start) {
        var root = node, walker = new TreeWalker(node, root);
        var nonEmptyElementsMap = this.dom.schema.getNonEmptyElements();

        do {
          // Text node
          if (node.nodeType == 3 && trim(node.nodeValue).length !== 0) {
            if (start) {
              rng.setStart(node, 0);
            } else {
              rng.setEnd(node, node.nodeValue.length);
            }

            return;
          }

          // BR/IMG/INPUT elements but not table cells
          if (nonEmptyElementsMap[node.nodeName] && !/^(TD|TH)$/.test(node.nodeName)) {
            if (start) {
              rng.setStartBefore(node);
            } else {
              if (node.nodeName == 'BR') {
                rng.setEndBefore(node);
              } else {
                rng.setEndAfter(node);
              }
            }

            return;
          }

          // Found empty text block old IE can place the selection inside those
          if (Env.ie && Env.ie < 11 && this.dom.isBlock(node) && this.dom.isEmpty(node)) {
            if (start) {
              rng.setStart(node, 0);
            } else {
              rng.setEnd(node, 0);
            }

            return;
          }
        } while ((node = (start ? walker.next() : walker.prev())));

        // Failed to find any text node or other suitable location then move to the root of body
        if (root.nodeName == 'BODY') {
          if (start) {
            rng.setStart(root, 0);
          } else {
            rng.setEnd(root, root.childNodes.length);
          }
        }
      },

      getBoundingClientRect: function () {
        var rng = this.getRng();
        return rng.collapsed ? CaretPosition.fromRangeStart(rng).getClientRects()[0] : rng.getBoundingClientRect();
      },

      destroy: function () {
        this.win = null;
        this.controlSelection.destroy();
      }
    };

    return Selection;
  }
);

/**
 * ElementUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility class for various element specific functions.
 *
 * @private
 * @class tinymce.dom.ElementUtils
 */
define(
  'tinymce.core.dom.ElementUtils',
  [
    "tinymce.core.dom.BookmarkManager",
    "tinymce.core.util.Tools"
  ],
  function (BookmarkManager, Tools) {
    var each = Tools.each;

    function ElementUtils(dom) {
      /**
       * Compares two nodes and checks if it's attributes and styles matches.
       * This doesn't compare classes as items since their order is significant.
       *
       * @method compare
       * @param {Node} node1 First node to compare with.
       * @param {Node} node2 Second node to compare with.
       * @return {boolean} True/false if the nodes are the same or not.
       */
      this.compare = function (node1, node2) {
        // Not the same name
        if (node1.nodeName != node2.nodeName) {
          return false;
        }

        /**
         * Returns all the nodes attributes excluding internal ones, styles and classes.
         *
         * @private
         * @param {Node} node Node to get attributes from.
         * @return {Object} Name/value object with attributes and attribute values.
         */
        function getAttribs(node) {
          var attribs = {};

          each(dom.getAttribs(node), function (attr) {
            var name = attr.nodeName.toLowerCase();

            // Don't compare internal attributes or style
            if (name.indexOf('_') !== 0 && name !== 'style' && name.indexOf('data-') !== 0) {
              attribs[name] = dom.getAttrib(node, name);
            }
          });

          return attribs;
        }

        /**
         * Compares two objects checks if it's key + value exists in the other one.
         *
         * @private
         * @param {Object} obj1 First object to compare.
         * @param {Object} obj2 Second object to compare.
         * @return {boolean} True/false if the objects matches or not.
         */
        function compareObjects(obj1, obj2) {
          var value, name;

          for (name in obj1) {
            // Obj1 has item obj2 doesn't have
            if (obj1.hasOwnProperty(name)) {
              value = obj2[name];

              // Obj2 doesn't have obj1 item
              if (typeof value == "undefined") {
                return false;
              }

              // Obj2 item has a different value
              if (obj1[name] != value) {
                return false;
              }

              // Delete similar value
              delete obj2[name];
            }
          }

          // Check if obj 2 has something obj 1 doesn't have
          for (name in obj2) {
            // Obj2 has item obj1 doesn't have
            if (obj2.hasOwnProperty(name)) {
              return false;
            }
          }

          return true;
        }

        // Attribs are not the same
        if (!compareObjects(getAttribs(node1), getAttribs(node2))) {
          return false;
        }

        // Styles are not the same
        if (!compareObjects(dom.parseStyle(dom.getAttrib(node1, 'style')), dom.parseStyle(dom.getAttrib(node2, 'style')))) {
          return false;
        }

        return !BookmarkManager.isBookmarkNode(node1) && !BookmarkManager.isBookmarkNode(node2);
      };
    }

    return ElementUtils;
  }
);

/**
 * Preview.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Internal class for generating previews styles for formats.
 *
 * Example:
 *  Preview.getCssText(editor, 'bold');
 *
 * @private
 * @class tinymce.fmt.Preview
 */
define(
  'tinymce.core.fmt.Preview',
  [
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.util.Tools",
    "tinymce.core.html.Schema"
  ],
  function (DOMUtils, Tools, Schema) {
    var each = Tools.each;
    var dom = DOMUtils.DOM;

    function parsedSelectorToHtml(ancestry, editor) {
      var elm, item, fragment;
      var schema = editor && editor.schema || new Schema({});

      function decorate(elm, item) {
        if (item.classes.length) {
          dom.addClass(elm, item.classes.join(' '));
        }
        dom.setAttribs(elm, item.attrs);
      }

      function createElement(sItem) {
        var elm;

        item = typeof sItem === 'string' ? {
          name: sItem,
          classes: [],
          attrs: {}
        } : sItem;

        elm = dom.create(item.name);
        decorate(elm, item);
        return elm;
      }

      function getRequiredParent(elm, candidate) {
        var name = typeof elm !== 'string' ? elm.nodeName.toLowerCase() : elm;
        var elmRule = schema.getElementRule(name);
        var parentsRequired = elmRule && elmRule.parentsRequired;

        if (parentsRequired && parentsRequired.length) {
          return candidate && Tools.inArray(parentsRequired, candidate) !== -1 ? candidate : parentsRequired[0];
        } else {
          return false;
        }
      }

      function wrapInHtml(elm, ancestry, siblings) {
        var parent, parentCandidate, parentRequired;
        var ancestor = ancestry.length > 0 && ancestry[0];
        var ancestorName = ancestor && ancestor.name;

        parentRequired = getRequiredParent(elm, ancestorName);

        if (parentRequired) {
          if (ancestorName == parentRequired) {
            parentCandidate = ancestry[0];
            ancestry = ancestry.slice(1);
          } else {
            parentCandidate = parentRequired;
          }
        } else if (ancestor) {
          parentCandidate = ancestry[0];
          ancestry = ancestry.slice(1);
        } else if (!siblings) {
          return elm;
        }

        if (parentCandidate) {
          parent = createElement(parentCandidate);
          parent.appendChild(elm);
        }

        if (siblings) {
          if (!parent) {
            // if no more ancestry, wrap in generic div
            parent = dom.create('div');
            parent.appendChild(elm);
          }

          Tools.each(siblings, function (sibling) {
            var siblingElm = createElement(sibling);
            parent.insertBefore(siblingElm, elm);
          });
        }

        return wrapInHtml(parent, ancestry, parentCandidate && parentCandidate.siblings);
      }

      if (ancestry && ancestry.length) {
        item = ancestry[0];
        elm = createElement(item);
        fragment = dom.create('div');
        fragment.appendChild(wrapInHtml(elm, ancestry.slice(1), item.siblings));
        return fragment;
      } else {
        return '';
      }
    }


    function selectorToHtml(selector, editor) {
      return parsedSelectorToHtml(parseSelector(selector), editor);
    }


    function parseSelectorItem(item) {
      var tagName;
      var obj = {
        classes: [],
        attrs: {}
      };

      item = obj.selector = Tools.trim(item);

      if (item !== '*') {
        // matching IDs, CLASSes, ATTRIBUTES and PSEUDOs
        tagName = item.replace(/(?:([#\.]|::?)([\w\-]+)|(\[)([^\]]+)\]?)/g, function ($0, $1, $2, $3, $4) {
          switch ($1) {
            case '#':
              obj.attrs.id = $2;
              break;

            case '.':
              obj.classes.push($2);
              break;

            case ':':
              if (Tools.inArray('checked disabled enabled read-only required'.split(' '), $2) !== -1) {
                obj.attrs[$2] = $2;
              }
              break;
          }

          // atribute matched
          if ($3 == '[') {
            var m = $4.match(/([\w\-]+)(?:\=\"([^\"]+))?/);
            if (m) {
              obj.attrs[m[1]] = m[2];
            }
          }

          return '';
        });
      }

      obj.name = tagName || 'div';
      return obj;
    }


    function parseSelector(selector) {
      if (!selector || typeof selector !== 'string') {
        return [];
      }

      // take into account only first one
      selector = selector.split(/\s*,\s*/)[0];

      // tighten
      selector = selector.replace(/\s*(~\+|~|\+|>)\s*/g, '$1');

      // split either on > or on space, but not the one inside brackets
      return Tools.map(selector.split(/(?:>|\s+(?![^\[\]]+\]))/), function (item) {
        // process each sibling selector separately
        var siblings = Tools.map(item.split(/(?:~\+|~|\+)/), parseSelectorItem);
        var obj = siblings.pop(); // the last one is our real target

        if (siblings.length) {
          obj.siblings = siblings;
        }
        return obj;
      }).reverse();
    }


    function getCssText(editor, format) {
      var name, previewFrag, previewElm, items;
      var previewCss = '', parentFontSize, previewStyles;

      previewStyles = editor.settings.preview_styles;

      // No preview forced
      if (previewStyles === false) {
        return '';
      }

      // Default preview
      if (typeof previewStyles !== 'string') {
        previewStyles = 'font-family font-size font-weight font-style text-decoration ' +
          'text-transform color background-color border border-radius outline text-shadow';
      }

      // Removes any variables since these can't be previewed
      function removeVars(val) {
        return val.replace(/%(\w+)/g, '');
      }

      // Create block/inline element to use for preview
      if (typeof format == "string") {
        format = editor.formatter.get(format);
        if (!format) {
          return;
        }

        format = format[0];
      }

      // Format specific preview override
      // TODO: This should probably be further reduced by the previewStyles option
      if ('preview' in format) {
        previewStyles = format.preview;
        if (previewStyles === false) {
          return '';
        }
      }

      name = format.block || format.inline || 'span';

      items = parseSelector(format.selector);
      if (items.length) {
        if (!items[0].name) { // e.g. something like ul > .someClass was provided
          items[0].name = name;
        }
        name = format.selector;
        previewFrag = parsedSelectorToHtml(items, editor);
      } else {
        previewFrag = parsedSelectorToHtml([name], editor);
      }

      previewElm = dom.select(name, previewFrag)[0] || previewFrag.firstChild;

      // Add format styles to preview element
      each(format.styles, function (value, name) {
        value = removeVars(value);

        if (value) {
          dom.setStyle(previewElm, name, value);
        }
      });

      // Add attributes to preview element
      each(format.attributes, function (value, name) {
        value = removeVars(value);

        if (value) {
          dom.setAttrib(previewElm, name, value);
        }
      });

      // Add classes to preview element
      each(format.classes, function (value) {
        value = removeVars(value);

        if (!dom.hasClass(previewElm, value)) {
          dom.addClass(previewElm, value);
        }
      });

      editor.fire('PreviewFormats');

      // Add the previewElm outside the visual area
      dom.setStyles(previewFrag, { position: 'absolute', left: -0xFFFF });
      editor.getBody().appendChild(previewFrag);

      // Get parent container font size so we can compute px values out of em/% for older IE:s
      parentFontSize = dom.getStyle(editor.getBody(), 'fontSize', true);
      parentFontSize = /px$/.test(parentFontSize) ? parseInt(parentFontSize, 10) : 0;

      each(previewStyles.split(' '), function (name) {
        var value = dom.getStyle(previewElm, name, true);

        // If background is transparent then check if the body has a background color we can use
        if (name == 'background-color' && /transparent|rgba\s*\([^)]+,\s*0\)/.test(value)) {
          value = dom.getStyle(editor.getBody(), name, true);

          // Ignore white since it's the default color, not the nicest fix
          // TODO: Fix this by detecting runtime style
          if (dom.toHex(value).toLowerCase() == '#ffffff') {
            return;
          }
        }

        if (name == 'color') {
          // Ignore black since it's the default color, not the nicest fix
          // TODO: Fix this by detecting runtime style
          if (dom.toHex(value).toLowerCase() == '#000000') {
            return;
          }
        }

        // Old IE won't calculate the font size so we need to do that manually
        if (name == 'font-size') {
          if (/em|%$/.test(value)) {
            if (parentFontSize === 0) {
              return;
            }

            // Convert font size from em/% to px
            value = parseFloat(value, 10) / (/%$/.test(value) ? 100 : 1);
            value = (value * parentFontSize) + 'px';
          }
        }

        if (name == "border" && value) {
          previewCss += 'padding:0 2px;';
        }

        previewCss += name + ':' + value + ';';
      });

      editor.fire('AfterPreviewFormats');

      //previewCss += 'line-height:normal';

      dom.remove(previewFrag);

      return previewCss;
    }

    return {
      getCssText: getCssText,
      parseSelector: parseSelector,
      selectorToHtml: selectorToHtml
    };
  }
);

/**
 * Hooks.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Internal class for overriding formatting.
 *
 * @private
 * @class tinymce.fmt.Hooks
 */
define(
  'tinymce.core.fmt.Hooks',
  [
    "tinymce.core.util.Arr",
    "tinymce.core.dom.NodeType",
    "tinymce.core.dom.DomQuery"
  ],
  function (Arr, NodeType, $) {
    var postProcessHooks = {}, filter = Arr.filter, each = Arr.each;

    function addPostProcessHook(name, hook) {
      var hooks = postProcessHooks[name];

      if (!hooks) {
        postProcessHooks[name] = hooks = [];
      }

      postProcessHooks[name].push(hook);
    }

    function postProcess(name, editor) {
      each(postProcessHooks[name], function (hook) {
        hook(editor);
      });
    }

    addPostProcessHook("pre", function (editor) {
      var rng = editor.selection.getRng(), isPre, blocks;

      function hasPreSibling(pre) {
        return isPre(pre.previousSibling) && Arr.indexOf(blocks, pre.previousSibling) != -1;
      }

      function joinPre(pre1, pre2) {
        $(pre2).remove();
        $(pre1).append('<br><br>').append(pre2.childNodes);
      }

      isPre = NodeType.matchNodeNames('pre');

      if (!rng.collapsed) {
        blocks = editor.selection.getSelectedBlocks();

        each(filter(filter(blocks, isPre), hasPreSibling), function (pre) {
          joinPre(pre.previousSibling, pre);
        });
      }
    });

    return {
      postProcess: postProcess
    };
  }
);

/**
 * Formatter.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Text formatter engine class. This class is used to apply formats like bold, italic, font size
 * etc to the current selection or specific nodes. This engine was built to replace the browser's
 * default formatting logic for execCommand due to its inconsistent and buggy behavior.
 *
 * @class tinymce.Formatter
 * @example
 *  tinymce.activeEditor.formatter.register('mycustomformat', {
 *    inline: 'span',
 *    styles: {color: '#ff0000'}
 *  });
 *
 *  tinymce.activeEditor.formatter.apply('mycustomformat');
 */
define(
  'tinymce.core.Formatter',
  [
    "tinymce.core.dom.TreeWalker",
    "tinymce.core.dom.RangeUtils",
    "tinymce.core.dom.BookmarkManager",
    "tinymce.core.dom.ElementUtils",
    "tinymce.core.dom.NodeType",
    "tinymce.core.util.Fun",
    "tinymce.core.util.Tools",
    "tinymce.core.fmt.Preview",
    "tinymce.core.fmt.Hooks"
  ],
  function (TreeWalker, RangeUtils, BookmarkManager, ElementUtils, NodeType, Fun, Tools, Preview, Hooks) {
    /**
     * Constructs a new formatter instance.
     *
     * @constructor Formatter
     * @param {tinymce.Editor} ed Editor instance to construct the formatter engine to.
     */
    return function (ed) {
      var formats = {},
        dom = ed.dom,
        selection = ed.selection,
        rangeUtils = new RangeUtils(dom),
        isValid = ed.schema.isValidChild,
        isBlock = dom.isBlock,
        forcedRootBlock = ed.settings.forced_root_block,
        nodeIndex = dom.nodeIndex,
        INVISIBLE_CHAR = '\uFEFF',
        MCE_ATTR_RE = /^(src|href|style)$/,
        FALSE = false,
        TRUE = true,
        formatChangeData,
        undef,
        getContentEditable = dom.getContentEditable,
        disableCaretContainer,
        markCaretContainersBogus,
        isBookmarkNode = BookmarkManager.isBookmarkNode;

      var each = Tools.each,
        grep = Tools.grep,
        walk = Tools.walk,
        extend = Tools.extend;

      function isTextBlock(name) {
        if (name.nodeType) {
          name = name.nodeName;
        }

        return !!ed.schema.getTextBlockElements()[name.toLowerCase()];
      }

      function isTableCell(node) {
        return /^(TH|TD)$/.test(node.nodeName);
      }

      function isInlineBlock(node) {
        return node && /^(IMG)$/.test(node.nodeName);
      }

      function getParents(node, selector) {
        return dom.getParents(node, selector, dom.getRoot());
      }

      function isCaretNode(node) {
        return node.nodeType === 1 && node.id === '_mce_caret';
      }

      function defaultFormats() {
        register({
          valigntop: [
            { selector: 'td,th', styles: { 'verticalAlign': 'top' } }
          ],

          valignmiddle: [
            { selector: 'td,th', styles: { 'verticalAlign': 'middle' } }
          ],

          valignbottom: [
            { selector: 'td,th', styles: { 'verticalAlign': 'bottom' } }
          ],

          alignleft: [
            {
              selector: 'figure.image',
              collapsed: false,
              classes: 'align-left',
              ceFalseOverride: true,
              preview: 'font-family font-size'
            },
            {
              selector: 'figure,p,h1,h2,h3,h4,h5,h6,td,th,tr,div,ul,ol,li',
              styles: {
                textAlign: 'left'
              },
              inherit: false,
              preview: false,
              defaultBlock: 'div'
            },
            { selector: 'img,table', collapsed: false, styles: { 'float': 'left' }, preview: 'font-family font-size' }
          ],

          aligncenter: [
            {
              selector: 'figure,p,h1,h2,h3,h4,h5,h6,td,th,tr,div,ul,ol,li',
              styles: {
                textAlign: 'center'
              },
              inherit: false,
              preview: false,
              defaultBlock: 'div'
            },
            {
              selector: 'figure.image',
              collapsed: false,
              classes: 'align-center',
              ceFalseOverride: true,
              preview: 'font-family font-size'
            },
            {
              selector: 'img',
              collapsed: false,
              styles: {
                display: 'block',
                marginLeft: 'auto',
                marginRight: 'auto'
              },
              preview: false
            },
            {
              selector: 'table',
              collapsed: false,
              styles: {
                marginLeft: 'auto',
                marginRight: 'auto'
              },
              preview: 'font-family font-size'
            }
          ],

          alignright: [
            {
              selector: 'figure.image',
              collapsed: false,
              classes: 'align-right',
              ceFalseOverride: true,
              preview: 'font-family font-size'
            },
            {
              selector: 'figure,p,h1,h2,h3,h4,h5,h6,td,th,tr,div,ul,ol,li',
              styles: {
                textAlign: 'right'
              },
              inherit: false,
              preview: 'font-family font-size',
              defaultBlock: 'div'
            },
            {
              selector: 'img,table',
              collapsed: false,
              styles: {
                'float': 'right'
              },
              preview: 'font-family font-size'
            }
          ],

          alignjustify: [
            {
              selector: 'figure,p,h1,h2,h3,h4,h5,h6,td,th,tr,div,ul,ol,li',
              styles: {
                textAlign: 'justify'
              },
              inherit: false,
              defaultBlock: 'div',
              preview: 'font-family font-size'
            }
          ],

          bold: [
            { inline: 'strong', remove: 'all' },
            { inline: 'span', styles: { fontWeight: 'bold' } },
            { inline: 'b', remove: 'all' }
          ],

          italic: [
            { inline: 'em', remove: 'all' },
            { inline: 'span', styles: { fontStyle: 'italic' } },
            { inline: 'i', remove: 'all' }
          ],

          underline: [
            { inline: 'span', styles: { textDecoration: 'underline' }, exact: true },
            { inline: 'u', remove: 'all' }
          ],

          strikethrough: [
            { inline: 'span', styles: { textDecoration: 'line-through' }, exact: true },
            { inline: 'strike', remove: 'all' }
          ],

          forecolor: { inline: 'span', styles: { color: '%value' }, links: true, remove_similar: true, clear_child_styles: true },
          hilitecolor: { inline: 'span', styles: { backgroundColor: '%value' }, links: true, remove_similar: true, clear_child_styles: true },
          fontname: { inline: 'span', styles: { fontFamily: '%value' }, clear_child_styles: true },
          fontsize: { inline: 'span', styles: { fontSize: '%value' }, clear_child_styles: true },
          fontsize_class: { inline: 'span', attributes: { 'class': '%value' } },
          blockquote: { block: 'blockquote', wrapper: 1, remove: 'all' },
          subscript: { inline: 'sub' },
          superscript: { inline: 'sup' },
          code: { inline: 'code' },

          link: {
            inline: 'a', selector: 'a', remove: 'all', split: true, deep: true,
            onmatch: function () {
              return true;
            },

            onformat: function (elm, fmt, vars) {
              each(vars, function (value, key) {
                dom.setAttrib(elm, key, value);
              });
            }
          },

          removeformat: [
            {
              selector: 'b,strong,em,i,font,u,strike,sub,sup,dfn,code,samp,kbd,var,cite,mark,q,del,ins',
              remove: 'all',
              split: true,
              expand: false,
              block_expand: true,
              deep: true
            },
            { selector: 'span', attributes: ['style', 'class'], remove: 'empty', split: true, expand: false, deep: true },
            { selector: '*', attributes: ['style', 'class'], split: false, expand: false, deep: true }
          ]
        });

        // Register default block formats
        each('p h1 h2 h3 h4 h5 h6 div address pre div dt dd samp'.split(/\s/), function (name) {
          register(name, { block: name, remove: 'all' });
        });

        // Register user defined formats
        register(ed.settings.formats);
      }

      var clearChildStyles = function (format, node) {
        if (format.clear_child_styles) {
          each(dom.select('*', node), function (node) {
            each(format.styles, function (value, name) {
              dom.setStyle(node, name, '');
            });
          });
        }
      };

      function addKeyboardShortcuts() {
        // Add some inline shortcuts
        ed.addShortcut('meta+b', 'bold_desc', 'Bold');
        ed.addShortcut('meta+i', 'italic_desc', 'Italic');
        ed.addShortcut('meta+u', 'underline_desc', 'Underline');

        // BlockFormat shortcuts keys
        for (var i = 1; i <= 6; i++) {
          ed.addShortcut('access+' + i, '', ['FormatBlock', false, 'h' + i]);
        }

        ed.addShortcut('access+7', '', ['FormatBlock', false, 'p']);
        ed.addShortcut('access+8', '', ['FormatBlock', false, 'div']);
        ed.addShortcut('access+9', '', ['FormatBlock', false, 'address']);
      }

      // Public functions

      /**
       * Returns the format by name or all formats if no name is specified.
       *
       * @method get
       * @param {String} name Optional name to retrieve by.
       * @return {Array/Object} Array/Object with all registered formats or a specific format.
       */
      function get(name) {
        return name ? formats[name] : formats;
      }

      /**
       * Registers a specific format by name.
       *
       * @method register
       * @param {Object/String} name Name of the format for example "bold".
       * @param {Object/Array} format Optional format object or array of format variants
       * can only be omitted if the first arg is an object.
       */
      function register(name, format) {
        if (name) {
          if (typeof name !== 'string') {
            each(name, function (format, name) {
              register(name, format);
            });
          } else {
            // Force format into array and add it to internal collection
            format = format.length ? format : [format];

            each(format, function (format) {
              // Set deep to false by default on selector formats this to avoid removing
              // alignment on images inside paragraphs when alignment is changed on paragraphs
              if (format.deep === undef) {
                format.deep = !format.selector;
              }

              // Default to true
              if (format.split === undef) {
                format.split = !format.selector || format.inline;
              }

              // Default to true
              if (format.remove === undef && format.selector && !format.inline) {
                format.remove = 'none';
              }

              // Mark format as a mixed format inline + block level
              if (format.selector && format.inline) {
                format.mixed = true;
                format.block_expand = true;
              }

              // Split classes if needed
              if (typeof format.classes === 'string') {
                format.classes = format.classes.split(/\s+/);
              }
            });

            formats[name] = format;
          }
        }
      }

      /**
       * Unregister a specific format by name.
       *
       * @method unregister
       * @param {String} name Name of the format for example "bold".
       */
      function unregister(name) {
        if (name && formats[name]) {
          delete formats[name];
        }

        return formats;
      }

      function matchesUnInheritedFormatSelector(node, name) {
        var formatList = get(name);

        if (formatList) {
          for (var i = 0; i < formatList.length; i++) {
            if (formatList[i].inherit === false && dom.is(node, formatList[i].selector)) {
              return true;
            }
          }
        }

        return false;
      }

      function getTextDecoration(node) {
        var decoration;

        ed.dom.getParent(node, function (n) {
          decoration = ed.dom.getStyle(n, 'text-decoration');
          return decoration && decoration !== 'none';
        });

        return decoration;
      }

      function processUnderlineAndColor(node) {
        var textDecoration;
        if (node.nodeType === 1 && node.parentNode && node.parentNode.nodeType === 1) {
          textDecoration = getTextDecoration(node.parentNode);
          if (ed.dom.getStyle(node, 'color') && textDecoration) {
            ed.dom.setStyle(node, 'text-decoration', textDecoration);
          } else if (ed.dom.getStyle(node, 'text-decoration') === textDecoration) {
            ed.dom.setStyle(node, 'text-decoration', null);
          }
        }
      }

      /**
       * Applies the specified format to the current selection or specified node.
       *
       * @method apply
       * @param {String} name Name of format to apply.
       * @param {Object} vars Optional list of variables to replace within format before applying it.
       * @param {Node} node Optional node to apply the format to defaults to current selection.
       */
      function apply(name, vars, node) {
        var formatList = get(name), format = formatList[0], bookmark, rng, isCollapsed = !node && selection.isCollapsed();

        function setElementFormat(elm, fmt) {
          fmt = fmt || format;

          if (elm) {
            if (fmt.onformat) {
              fmt.onformat(elm, fmt, vars, node);
            }

            each(fmt.styles, function (value, name) {
              dom.setStyle(elm, name, replaceVars(value, vars));
            });

            // Needed for the WebKit span spam bug
            // TODO: Remove this once WebKit/Blink fixes this
            if (fmt.styles) {
              var styleVal = dom.getAttrib(elm, 'style');

              if (styleVal) {
                elm.setAttribute('data-mce-style', styleVal);
              }
            }

            each(fmt.attributes, function (value, name) {
              dom.setAttrib(elm, name, replaceVars(value, vars));
            });

            each(fmt.classes, function (value) {
              value = replaceVars(value, vars);

              if (!dom.hasClass(elm, value)) {
                dom.addClass(elm, value);
              }
            });
          }
        }

        function applyNodeStyle(formatList, node) {
          var found = false;

          if (!format.selector) {
            return false;
          }

          // Look for matching formats
          each(formatList, function (format) {
            // Check collapsed state if it exists
            if ('collapsed' in format && format.collapsed !== isCollapsed) {
              return;
            }

            if (dom.is(node, format.selector) && !isCaretNode(node)) {
              setElementFormat(node, format);
              found = true;
              return false;
            }
          });

          return found;
        }

        // This converts: <p>[a</p><p>]b</p> -> <p>[a]</p><p>b</p>
        function adjustSelectionToVisibleSelection() {
          function findSelectionEnd(start, end) {
            var walker = new TreeWalker(end);
            for (node = walker.prev2(); node; node = walker.prev2()) {
              if (node.nodeType == 3 && node.data.length > 0) {
                return node;
              }

              if (node.childNodes.length > 1 || node == start || node.tagName == 'BR') {
                return node;
              }
            }
          }

          // Adjust selection so that a end container with a end offset of zero is not included in the selection
          // as this isn't visible to the user.
          var rng = ed.selection.getRng();
          var start = rng.startContainer;
          var end = rng.endContainer;

          if (start != end && rng.endOffset === 0) {
            var newEnd = findSelectionEnd(start, end);
            var endOffset = newEnd.nodeType == 3 ? newEnd.data.length : newEnd.childNodes.length;

            rng.setEnd(newEnd, endOffset);
          }

          return rng;
        }

        function applyRngStyle(rng, bookmark, nodeSpecific) {
          var newWrappers = [], wrapName, wrapElm, contentEditable = true;

          // Setup wrapper element
          wrapName = format.inline || format.block;
          wrapElm = dom.create(wrapName);
          setElementFormat(wrapElm);

          rangeUtils.walk(rng, function (nodes) {
            var currentWrapElm;

            /**
             * Process a list of nodes wrap them.
             */
            function process(node) {
              var nodeName, parentName, hasContentEditableState, lastContentEditable;

              lastContentEditable = contentEditable;
              nodeName = node.nodeName.toLowerCase();
              parentName = node.parentNode.nodeName.toLowerCase();

              // Node has a contentEditable value
              if (node.nodeType === 1 && getContentEditable(node)) {
                lastContentEditable = contentEditable;
                contentEditable = getContentEditable(node) === "true";
                hasContentEditableState = true; // We don't want to wrap the container only it's children
              }

              // Stop wrapping on br elements
              if (isEq(nodeName, 'br')) {
                currentWrapElm = 0;

                // Remove any br elements when we wrap things
                if (format.block) {
                  dom.remove(node);
                }

                return;
              }

              // If node is wrapper type
              if (format.wrapper && matchNode(node, name, vars)) {
                currentWrapElm = 0;
                return;
              }

              // Can we rename the block
              // TODO: Break this if up, too complex
              if (contentEditable && !hasContentEditableState && format.block &&
                !format.wrapper && isTextBlock(nodeName) && isValid(parentName, wrapName)) {
                node = dom.rename(node, wrapName);
                setElementFormat(node);
                newWrappers.push(node);
                currentWrapElm = 0;
                return;
              }

              // Handle selector patterns
              if (format.selector) {
                var found = applyNodeStyle(formatList, node);

                // Continue processing if a selector match wasn't found and a inline element is defined
                if (!format.inline || found) {
                  currentWrapElm = 0;
                  return;
                }
              }

              // Is it valid to wrap this item
              // TODO: Break this if up, too complex
              if (contentEditable && !hasContentEditableState && isValid(wrapName, nodeName) && isValid(parentName, wrapName) &&
                !(!nodeSpecific && node.nodeType === 3 &&
                  node.nodeValue.length === 1 &&
                  node.nodeValue.charCodeAt(0) === 65279) &&
                !isCaretNode(node) &&
                (!format.inline || !isBlock(node))) {
                // Start wrapping
                if (!currentWrapElm) {
                  // Wrap the node
                  currentWrapElm = dom.clone(wrapElm, FALSE);
                  node.parentNode.insertBefore(currentWrapElm, node);
                  newWrappers.push(currentWrapElm);
                }

                currentWrapElm.appendChild(node);
              } else {
                // Start a new wrapper for possible children
                currentWrapElm = 0;

                each(grep(node.childNodes), process);

                if (hasContentEditableState) {
                  contentEditable = lastContentEditable; // Restore last contentEditable state from stack
                }

                // End the last wrapper
                currentWrapElm = 0;
              }
            }

            // Process siblings from range
            each(nodes, process);
          });

          // Apply formats to links as well to get the color of the underline to change as well
          if (format.links === true) {
            each(newWrappers, function (node) {
              function process(node) {
                if (node.nodeName === 'A') {
                  setElementFormat(node, format);
                }

                each(grep(node.childNodes), process);
              }

              process(node);
            });
          }

          // Cleanup
          each(newWrappers, function (node) {
            var childCount;

            function getChildCount(node) {
              var count = 0;

              each(node.childNodes, function (node) {
                if (!isWhiteSpaceNode(node) && !isBookmarkNode(node)) {
                  count++;
                }
              });

              return count;
            }

            function getChildElementNode(root) {
              var child = false;
              each(root.childNodes, function (node) {
                if (isElementNode(node)) {
                  child = node;
                  return false; // break loop
                }
              });
              return child;
            }

            function matchNestedWrapper(node, filter) {
              do {
                if (getChildCount(node) !== 1) {
                  break;
                }

                node = getChildElementNode(node);
                if (!node) {
                  break;
                } else if (filter(node)) {
                  return node;
                }
              } while (node);

              return null;
            }

            function mergeStyles(node) {
              var child, clone;

              child = getChildElementNode(node);

              // If child was found and of the same type as the current node
              if (child && !isBookmarkNode(child) && matchName(child, format)) {
                clone = dom.clone(child, FALSE);
                setElementFormat(clone);

                dom.replace(clone, node, TRUE);
                dom.remove(child, 1);
              }

              return clone || node;
            }

            childCount = getChildCount(node);

            // Remove empty nodes but only if there is multiple wrappers and they are not block
            // elements so never remove single <h1></h1> since that would remove the
            // current empty block element where the caret is at
            if ((newWrappers.length > 1 || !isBlock(node)) && childCount === 0) {
              dom.remove(node, 1);
              return;
            }

            if (format.inline || format.wrapper) {
              // Merges the current node with it's children of similar type to reduce the number of elements
              if (!format.exact && childCount === 1) {
                node = mergeStyles(node);
              }

              // Remove/merge children
              each(formatList, function (format) {
                // Merge all children of similar type will move styles from child to parent
                // this: <span style="color:red"><b><span style="color:red; font-size:10px">text</span></b></span>
                // will become: <span style="color:red"><b><span style="font-size:10px">text</span></b></span>
                each(dom.select(format.inline, node), function (child) {
                  if (!isElementNode(child)) {
                    return;
                  }

                  removeFormat(format, vars, child, format.exact ? child : null);
                });

                clearChildStyles(format, node);
              });

              // Remove format if direct parent already has the same format
              if (matchNode(node.parentNode, name, vars)) {
                if (removeFormat(format, vars, node)) {
                  node = 0;
                }
              }

              // Remove format if any ancestor already has the same format
              if (format.merge_with_parents) {
                dom.getParent(node.parentNode, function (parent) {
                  if (matchNode(parent, name, vars)) {
                    if (removeFormat(format, vars, node)) {
                      node = 0;
                    }
                    return TRUE;
                  }
                });
              }

              // fontSize defines the line height for the whole branch of nested style wrappers,
              // therefore it should be set on the outermost wrapper
              if (node && !isBlock(node) && !getStyle(node, 'fontSize')) {
                var styleNode = matchNestedWrapper(node, hasStyle('fontSize'));
                if (styleNode) {
                  apply('fontsize', { value: getStyle(styleNode, 'fontSize') }, node);
                }
              }

              // Merge next and previous siblings if they are similar <b>text</b><b>text</b> becomes <b>texttext</b>
              if (node && format.merge_siblings !== false) {
                node = mergeSiblings(getNonWhiteSpaceSibling(node), node);
                node = mergeSiblings(node, getNonWhiteSpaceSibling(node, TRUE));
              }
            }
          });
        }

        if (getContentEditable(selection.getNode()) === "false") {
          node = selection.getNode();
          for (var i = 0, l = formatList.length; i < l; i++) {
            if (formatList[i].ceFalseOverride && dom.is(node, formatList[i].selector)) {
              setElementFormat(node, formatList[i]);
              return;
            }
          }

          return;
        }

        if (format) {
          if (node) {
            if (node.nodeType) {
              if (!applyNodeStyle(formatList, node)) {
                rng = dom.createRng();
                rng.setStartBefore(node);
                rng.setEndAfter(node);
                applyRngStyle(expandRng(rng, formatList), null, true);
              }
            } else {
              applyRngStyle(node, null, true);
            }
          } else {
            if (!isCollapsed || !format.inline || dom.select('td[data-mce-selected],th[data-mce-selected]').length) {
              // Obtain selection node before selection is unselected by applyRngStyle()
              var curSelNode = ed.selection.getNode();

              // If the formats have a default block and we can't find a parent block then
              // start wrapping it with a DIV this is for forced_root_blocks: false
              // It's kind of a hack but people should be using the default block type P since all desktop editors work that way
              if (!forcedRootBlock && formatList[0].defaultBlock && !dom.getParent(curSelNode, dom.isBlock)) {
                apply(formatList[0].defaultBlock);
              }

              // Apply formatting to selection
              ed.selection.setRng(adjustSelectionToVisibleSelection());
              bookmark = selection.getBookmark();
              applyRngStyle(expandRng(selection.getRng(TRUE), formatList), bookmark);

              if (format.styles) {
                // Colored nodes should be underlined so that the color of the underline matches the text color.
                if (format.styles.color || format.styles.textDecoration) {
                  walk(curSelNode, processUnderlineAndColor, 'childNodes');
                  processUnderlineAndColor(curSelNode);
                }

                // nodes with font-size should have their own background color as well to fit the line-height (see TINY-882)
                if (format.styles.backgroundColor) {
                  processChildElements(curSelNode,
                    hasStyle('fontSize'),
                    applyStyle('backgroundColor', replaceVars(format.styles.backgroundColor, vars))
                  );
                }
              }

              selection.moveToBookmark(bookmark);
              moveStart(selection.getRng(TRUE));
              ed.nodeChanged();
            } else {
              performCaretAction('apply', name, vars);
            }
          }

          Hooks.postProcess(name, ed);
        }
      }

      /**
       * Removes the specified format from the current selection or specified node.
       *
       * @method remove
       * @param {String} name Name of format to remove.
       * @param {Object} vars Optional list of variables to replace within format before removing it.
       * @param {Node/Range} node Optional node or DOM range to remove the format from defaults to current selection.
       */
      function remove(name, vars, node, similar) {
        var formatList = get(name), format = formatList[0], bookmark, rng, contentEditable = true;

        // Merges the styles for each node
        function process(node) {
          var children, i, l, lastContentEditable, hasContentEditableState;

          // Node has a contentEditable value
          if (node.nodeType === 1 && getContentEditable(node)) {
            lastContentEditable = contentEditable;
            contentEditable = getContentEditable(node) === "true";
            hasContentEditableState = true; // We don't want to wrap the container only it's children
          }

          // Grab the children first since the nodelist might be changed
          children = grep(node.childNodes);

          // Process current node
          if (contentEditable && !hasContentEditableState) {
            for (i = 0, l = formatList.length; i < l; i++) {
              if (removeFormat(formatList[i], vars, node, node)) {
                break;
              }
            }
          }

          // Process the children
          if (format.deep) {
            if (children.length) {
              for (i = 0, l = children.length; i < l; i++) {
                process(children[i]);
              }

              if (hasContentEditableState) {
                contentEditable = lastContentEditable; // Restore last contentEditable state from stack
              }
            }
          }
        }

        function findFormatRoot(container) {
          var formatRoot;

          // Find format root
          each(getParents(container.parentNode).reverse(), function (parent) {
            var format;

            // Find format root element
            if (!formatRoot && parent.id != '_start' && parent.id != '_end') {
              // Is the node matching the format we are looking for
              format = matchNode(parent, name, vars, similar);
              if (format && format.split !== false) {
                formatRoot = parent;
              }
            }
          });

          return formatRoot;
        }

        function wrapAndSplit(formatRoot, container, target, split) {
          var parent, clone, lastClone, firstClone, i, formatRootParent;

          // Format root found then clone formats and split it
          if (formatRoot) {
            formatRootParent = formatRoot.parentNode;

            for (parent = container.parentNode; parent && parent != formatRootParent; parent = parent.parentNode) {
              clone = dom.clone(parent, FALSE);

              for (i = 0; i < formatList.length; i++) {
                if (removeFormat(formatList[i], vars, clone, clone)) {
                  clone = 0;
                  break;
                }
              }

              // Build wrapper node
              if (clone) {
                if (lastClone) {
                  clone.appendChild(lastClone);
                }

                if (!firstClone) {
                  firstClone = clone;
                }

                lastClone = clone;
              }
            }

            // Never split block elements if the format is mixed
            if (split && (!format.mixed || !isBlock(formatRoot))) {
              container = dom.split(formatRoot, container);
            }

            // Wrap container in cloned formats
            if (lastClone) {
              target.parentNode.insertBefore(lastClone, target);
              firstClone.appendChild(target);
            }
          }

          return container;
        }

        function splitToFormatRoot(container) {
          return wrapAndSplit(findFormatRoot(container), container, container, true);
        }

        function unwrap(start) {
          var node = dom.get(start ? '_start' : '_end'),
            out = node[start ? 'firstChild' : 'lastChild'];

          // If the end is placed within the start the result will be removed
          // So this checks if the out node is a bookmark node if it is it
          // checks for another more suitable node
          if (isBookmarkNode(out)) {
            out = out[start ? 'firstChild' : 'lastChild'];
          }

          // Since dom.remove removes empty text nodes then we need to try to find a better node
          if (out.nodeType == 3 && out.data.length === 0) {
            out = start ? node.previousSibling || node.nextSibling : node.nextSibling || node.previousSibling;
          }

          dom.remove(node, true);

          return out;
        }

        function removeRngStyle(rng) {
          var startContainer, endContainer;
          var commonAncestorContainer = rng.commonAncestorContainer;

          rng = expandRng(rng, formatList, TRUE);

          if (format.split) {
            startContainer = getContainer(rng, TRUE);
            endContainer = getContainer(rng);

            if (startContainer != endContainer) {
              // WebKit will render the table incorrectly if we wrap a TH or TD in a SPAN
              // so let's see if we can use the first child instead
              // This will happen if you triple click a table cell and use remove formatting
              if (/^(TR|TH|TD)$/.test(startContainer.nodeName) && startContainer.firstChild) {
                if (startContainer.nodeName == "TR") {
                  startContainer = startContainer.firstChild.firstChild || startContainer;
                } else {
                  startContainer = startContainer.firstChild || startContainer;
                }
              }

              // Try to adjust endContainer as well if cells on the same row were selected - bug #6410
              if (commonAncestorContainer &&
                /^T(HEAD|BODY|FOOT|R)$/.test(commonAncestorContainer.nodeName) &&
                isTableCell(endContainer) && endContainer.firstChild) {
                endContainer = endContainer.firstChild || endContainer;
              }

              if (dom.isChildOf(startContainer, endContainer) && !isBlock(endContainer) &&
                !isTableCell(startContainer) && !isTableCell(endContainer)) {
                startContainer = wrap(startContainer, 'span', { id: '_start', 'data-mce-type': 'bookmark' });
                splitToFormatRoot(startContainer);
                startContainer = unwrap(TRUE);
                return;
              }

              // Wrap start/end nodes in span element since these might be cloned/moved
              startContainer = wrap(startContainer, 'span', { id: '_start', 'data-mce-type': 'bookmark' });
              endContainer = wrap(endContainer, 'span', { id: '_end', 'data-mce-type': 'bookmark' });

              // Split start/end
              splitToFormatRoot(startContainer);
              splitToFormatRoot(endContainer);

              // Unwrap start/end to get real elements again
              startContainer = unwrap(TRUE);
              endContainer = unwrap();
            } else {
              startContainer = endContainer = splitToFormatRoot(startContainer);
            }

            // Update range positions since they might have changed after the split operations
            rng.startContainer = startContainer.parentNode ? startContainer.parentNode : startContainer;
            rng.startOffset = nodeIndex(startContainer);
            rng.endContainer = endContainer.parentNode ? endContainer.parentNode : endContainer;
            rng.endOffset = nodeIndex(endContainer) + 1;
          }

          // Remove items between start/end
          rangeUtils.walk(rng, function (nodes) {
            each(nodes, function (node) {
              process(node);

              // Remove parent span if it only contains text-decoration: underline, yet a parent node is also underlined.
              if (node.nodeType === 1 && ed.dom.getStyle(node, 'text-decoration') === 'underline' &&
                node.parentNode && getTextDecoration(node.parentNode) === 'underline') {
                removeFormat({
                  'deep': false,
                  'exact': true,
                  'inline': 'span',
                  'styles': {
                    'textDecoration': 'underline'
                  }
                }, null, node);
              }
            });
          });
        }

        // Handle node
        if (node) {
          if (node.nodeType) {
            rng = dom.createRng();
            rng.setStartBefore(node);
            rng.setEndAfter(node);
            removeRngStyle(rng);
          } else {
            removeRngStyle(node);
          }

          return;
        }

        if (getContentEditable(selection.getNode()) === "false") {
          node = selection.getNode();
          for (var i = 0, l = formatList.length; i < l; i++) {
            if (formatList[i].ceFalseOverride) {
              if (removeFormat(formatList[i], vars, node, node)) {
                break;
              }
            }
          }

          return;
        }

        if (!selection.isCollapsed() || !format.inline || dom.select('td[data-mce-selected],th[data-mce-selected]').length) {
          bookmark = selection.getBookmark();
          removeRngStyle(selection.getRng(TRUE));
          selection.moveToBookmark(bookmark);

          // Check if start element still has formatting then we are at: "<b>text|</b>text"
          // and need to move the start into the next text node
          if (format.inline && match(name, vars, selection.getStart())) {
            moveStart(selection.getRng(true));
          }

          ed.nodeChanged();
        } else {
          performCaretAction('remove', name, vars, similar);
        }
      }

      /**
       * Toggles the specified format on/off.
       *
       * @method toggle
       * @param {String} name Name of format to apply/remove.
       * @param {Object} vars Optional list of variables to replace within format before applying/removing it.
       * @param {Node} node Optional node to apply the format to or remove from. Defaults to current selection.
       */
      function toggle(name, vars, node) {
        var fmt = get(name);

        if (match(name, vars, node) && (!('toggle' in fmt[0]) || fmt[0].toggle)) {
          remove(name, vars, node);
        } else {
          apply(name, vars, node);
        }
      }

      /**
       * Return true/false if the specified node has the specified format.
       *
       * @method matchNode
       * @param {Node} node Node to check the format on.
       * @param {String} name Format name to check.
       * @param {Object} vars Optional list of variables to replace before checking it.
       * @param {Boolean} similar Match format that has similar properties.
       * @return {Object} Returns the format object it matches or undefined if it doesn't match.
       */
      function matchNode(node, name, vars, similar) {
        var formatList = get(name), format, i, classes;

        function matchItems(node, format, itemName) {
          var key, value, items = format[itemName], i;

          // Custom match
          if (format.onmatch) {
            return format.onmatch(node, format, itemName);
          }

          // Check all items
          if (items) {
            // Non indexed object
            if (items.length === undef) {
              for (key in items) {
                if (items.hasOwnProperty(key)) {
                  if (itemName === 'attributes') {
                    value = dom.getAttrib(node, key);
                  } else {
                    value = getStyle(node, key);
                  }

                  if (similar && !value && !format.exact) {
                    return;
                  }

                  if ((!similar || format.exact) && !isEq(value, normalizeStyleValue(replaceVars(items[key], vars), key))) {
                    return;
                  }
                }
              }
            } else {
              // Only one match needed for indexed arrays
              for (i = 0; i < items.length; i++) {
                if (itemName === 'attributes' ? dom.getAttrib(node, items[i]) : getStyle(node, items[i])) {
                  return format;
                }
              }
            }
          }

          return format;
        }

        if (formatList && node) {
          // Check each format in list
          for (i = 0; i < formatList.length; i++) {
            format = formatList[i];

            // Name name, attributes, styles and classes
            if (matchName(node, format) && matchItems(node, format, 'attributes') && matchItems(node, format, 'styles')) {
              // Match classes
              if ((classes = format.classes)) {
                for (i = 0; i < classes.length; i++) {
                  if (!dom.hasClass(node, classes[i])) {
                    return;
                  }
                }
              }

              return format;
            }
          }
        }
      }

      /**
       * Matches the current selection or specified node against the specified format name.
       *
       * @method match
       * @param {String} name Name of format to match.
       * @param {Object} vars Optional list of variables to replace before checking it.
       * @param {Node} node Optional node to check.
       * @return {boolean} true/false if the specified selection/node matches the format.
       */
      function match(name, vars, node) {
        var startNode;

        function matchParents(node) {
          var root = dom.getRoot();

          if (node === root) {
            return false;
          }

          // Find first node with similar format settings
          node = dom.getParent(node, function (node) {
            if (matchesUnInheritedFormatSelector(node, name)) {
              return true;
            }

            return node.parentNode === root || !!matchNode(node, name, vars, true);
          });

          // Do an exact check on the similar format element
          return matchNode(node, name, vars);
        }

        // Check specified node
        if (node) {
          return matchParents(node);
        }

        // Check selected node
        node = selection.getNode();
        if (matchParents(node)) {
          return TRUE;
        }

        // Check start node if it's different
        startNode = selection.getStart();
        if (startNode != node) {
          if (matchParents(startNode)) {
            return TRUE;
          }
        }

        return FALSE;
      }

      /**
       * Matches the current selection against the array of formats and returns a new array with matching formats.
       *
       * @method matchAll
       * @param {Array} names Name of format to match.
       * @param {Object} vars Optional list of variables to replace before checking it.
       * @return {Array} Array with matched formats.
       */
      function matchAll(names, vars) {
        var startElement, matchedFormatNames = [], checkedMap = {};

        // Check start of selection for formats
        startElement = selection.getStart();
        dom.getParent(startElement, function (node) {
          var i, name;

          for (i = 0; i < names.length; i++) {
            name = names[i];

            if (!checkedMap[name] && matchNode(node, name, vars)) {
              checkedMap[name] = true;
              matchedFormatNames.push(name);
            }
          }
        }, dom.getRoot());

        return matchedFormatNames;
      }

      /**
       * Returns true/false if the specified format can be applied to the current selection or not. It
       * will currently only check the state for selector formats, it returns true on all other format types.
       *
       * @method canApply
       * @param {String} name Name of format to check.
       * @return {boolean} true/false if the specified format can be applied to the current selection/node.
       */
      function canApply(name) {
        var formatList = get(name), startNode, parents, i, x, selector;

        if (formatList) {
          startNode = selection.getStart();
          parents = getParents(startNode);

          for (x = formatList.length - 1; x >= 0; x--) {
            selector = formatList[x].selector;

            // Format is not selector based then always return TRUE
            // Is it has a defaultBlock then it's likely it can be applied for example align on a non block element line
            if (!selector || formatList[x].defaultBlock) {
              return TRUE;
            }

            for (i = parents.length - 1; i >= 0; i--) {
              if (dom.is(parents[i], selector)) {
                return TRUE;
              }
            }
          }
        }

        return FALSE;
      }

      /**
       * Executes the specified callback when the current selection matches the formats or not.
       *
       * @method formatChanged
       * @param {String} formats Comma separated list of formats to check for.
       * @param {function} callback Callback with state and args when the format is changed/toggled on/off.
       * @param {Boolean} similar True/false state if the match should handle similar or exact formats.
       */
      function formatChanged(formats, callback, similar) {
        var currentFormats;

        // Setup format node change logic
        if (!formatChangeData) {
          formatChangeData = {};
          currentFormats = {};

          ed.on('NodeChange', function (e) {
            var parents = getParents(e.element), matchedFormats = {};

            // Ignore bogus nodes like the <a> tag created by moveStart()
            parents = Tools.grep(parents, function (node) {
              return node.nodeType == 1 && !node.getAttribute('data-mce-bogus');
            });

            // Check for new formats
            each(formatChangeData, function (callbacks, format) {
              each(parents, function (node) {
                if (matchNode(node, format, {}, callbacks.similar)) {
                  if (!currentFormats[format]) {
                    // Execute callbacks
                    each(callbacks, function (callback) {
                      callback(true, { node: node, format: format, parents: parents });
                    });

                    currentFormats[format] = callbacks;
                  }

                  matchedFormats[format] = callbacks;
                  return false;
                }

                if (matchesUnInheritedFormatSelector(node, format)) {
                  return false;
                }
              });
            });

            // Check if current formats still match
            each(currentFormats, function (callbacks, format) {
              if (!matchedFormats[format]) {
                delete currentFormats[format];

                each(callbacks, function (callback) {
                  callback(false, { node: e.element, format: format, parents: parents });
                });
              }
            });
          });
        }

        // Add format listeners
        each(formats.split(','), function (format) {
          if (!formatChangeData[format]) {
            formatChangeData[format] = [];
            formatChangeData[format].similar = similar;
          }

          formatChangeData[format].push(callback);
        });

        return this;
      }

      /**
       * Returns a preview css text for the specified format.
       *
       * @method getCssText
       * @param {String/Object} format Format to generate preview css text for.
       * @return {String} Css text for the specified format.
       * @example
       * var cssText1 = editor.formatter.getCssText('bold');
       * var cssText2 = editor.formatter.getCssText({inline: 'b'});
       */
      function getCssText(format) {
        return Preview.getCssText(ed, format);
      }

      // Expose to public
      extend(this, {
        get: get,
        register: register,
        unregister: unregister,
        apply: apply,
        remove: remove,
        toggle: toggle,
        match: match,
        matchAll: matchAll,
        matchNode: matchNode,
        canApply: canApply,
        formatChanged: formatChanged,
        getCssText: getCssText
      });

      // Initialize
      defaultFormats();
      addKeyboardShortcuts();
      ed.on('BeforeGetContent', function (e) {
        if (markCaretContainersBogus && e.format != 'raw') {
          markCaretContainersBogus();
        }
      });
      ed.on('mouseup keydown', function (e) {
        if (disableCaretContainer) {
          disableCaretContainer(e);
        }
      });

      // Private functions

      /**
       * Checks if the specified nodes name matches the format inline/block or selector.
       *
       * @private
       * @param {Node} node Node to match against the specified format.
       * @param {Object} format Format object o match with.
       * @return {boolean} true/false if the format matches.
       */
      function matchName(node, format) {
        // Check for inline match
        if (isEq(node, format.inline)) {
          return TRUE;
        }

        // Check for block match
        if (isEq(node, format.block)) {
          return TRUE;
        }

        // Check for selector match
        if (format.selector) {
          return node.nodeType == 1 && dom.is(node, format.selector);
        }
      }

      /**
       * Compares two string/nodes regardless of their case.
       *
       * @private
       * @param {String/Node} str1 Node or string to compare.
       * @param {String/Node} str2 Node or string to compare.
       * @return {boolean} True/false if they match.
       */
      function isEq(str1, str2) {
        str1 = str1 || '';
        str2 = str2 || '';

        str1 = '' + (str1.nodeName || str1);
        str2 = '' + (str2.nodeName || str2);

        return str1.toLowerCase() == str2.toLowerCase();
      }

      function processChildElements(node, filter, process) {
        each(node.childNodes, function (node) {
          if (isElementNode(node)) {
            if (filter(node)) {
              process(node);
            }
            if (node.hasChildNodes()) {
              processChildElements(node, filter, process);
            }
          }
        });
      }

      function isElementNode(node) {
        return node && node.nodeType === 1 && !isBookmarkNode(node) && !isCaretNode(node) && !NodeType.isBogus(node);
      }

      function hasStyle(name) {
        return Fun.curry(function (name, node) {
          return !!(node && getStyle(node, name));
        }, name);
      }

      function applyStyle(name, value) {
        return Fun.curry(function (name, value, node) {
          dom.setStyle(node, name, value);
        }, name, value);
      }

      /**
       * Returns the style by name on the specified node. This method modifies the style
       * contents to make it more easy to match. This will resolve a few browser issues.
       *
       * @private
       * @param {Node} node to get style from.
       * @param {String} name Style name to get.
       * @return {String} Style item value.
       */
      function getStyle(node, name) {
        return normalizeStyleValue(dom.getStyle(node, name), name);
      }

      /**
       * Normalize style value by name. This method modifies the style contents
       * to make it more easy to match. This will resolve a few browser issues.
       *
       * @private
       * @param {String} value Value to get style from.
       * @param {String} name Style name to get.
       * @return {String} Style item value.
       */
      function normalizeStyleValue(value, name) {
        // Force the format to hex
        if (name == 'color' || name == 'backgroundColor') {
          value = dom.toHex(value);
        }

        // Opera will return bold as 700
        if (name == 'fontWeight' && value == 700) {
          value = 'bold';
        }

        // Normalize fontFamily so "'Font name', Font" becomes: "Font name,Font"
        if (name == 'fontFamily') {
          value = value.replace(/[\'\"]/g, '').replace(/,\s+/g, ',');
        }

        return '' + value;
      }

      /**
       * Replaces variables in the value. The variable format is %var.
       *
       * @private
       * @param {String} value Value to replace variables in.
       * @param {Object} vars Name/value array with variables to replace.
       * @return {String} New value with replaced variables.
       */
      function replaceVars(value, vars) {
        if (typeof value != "string") {
          value = value(vars);
        } else if (vars) {
          value = value.replace(/%(\w+)/g, function (str, name) {
            return vars[name] || str;
          });
        }

        return value;
      }

      function isWhiteSpaceNode(node) {
        return node && node.nodeType === 3 && /^([\t \r\n]+|)$/.test(node.nodeValue);
      }

      function wrap(node, name, attrs) {
        var wrapper = dom.create(name, attrs);

        node.parentNode.insertBefore(wrapper, node);
        wrapper.appendChild(node);

        return wrapper;
      }

      /**
       * Expands the specified range like object to depending on format.
       *
       * For example on block formats it will move the start/end position
       * to the beginning of the current block.
       *
       * @private
       * @param {Object} rng Range like object.
       * @param {Array} format Array with formats to expand by.
       * @param {Boolean} remove
       * @return {Object} Expanded range like object.
       */
      function expandRng(rng, format, remove) {
        var lastIdx, leaf, endPoint,
          startContainer = rng.startContainer,
          startOffset = rng.startOffset,
          endContainer = rng.endContainer,
          endOffset = rng.endOffset;

        // This function walks up the tree if there is no siblings before/after the node
        function findParentContainer(start) {
          var container, parent, sibling, siblingName, root;

          container = parent = start ? startContainer : endContainer;
          siblingName = start ? 'previousSibling' : 'nextSibling';
          root = dom.getRoot();

          function isBogusBr(node) {
            return node.nodeName == "BR" && node.getAttribute('data-mce-bogus') && !node.nextSibling;
          }

          // If it's a text node and the offset is inside the text
          if (container.nodeType == 3 && !isWhiteSpaceNode(container)) {
            if (start ? startOffset > 0 : endOffset < container.nodeValue.length) {
              return container;
            }
          }

          /*eslint no-constant-condition:0 */
          while (true) {
            // Stop expanding on block elements
            if (!format[0].block_expand && isBlock(parent)) {
              return parent;
            }

            // Walk left/right
            for (sibling = parent[siblingName]; sibling; sibling = sibling[siblingName]) {
              if (!isBookmarkNode(sibling) && !isWhiteSpaceNode(sibling) && !isBogusBr(sibling)) {
                return parent;
              }
            }

            // Check if we can move up are we at root level or body level
            if (parent == root || parent.parentNode == root) {
              container = parent;
              break;
            }

            parent = parent.parentNode;
          }

          return container;
        }

        // This function walks down the tree to find the leaf at the selection.
        // The offset is also returned as if node initially a leaf, the offset may be in the middle of the text node.
        function findLeaf(node, offset) {
          if (offset === undef) {
            offset = node.nodeType === 3 ? node.length : node.childNodes.length;
          }

          while (node && node.hasChildNodes()) {
            node = node.childNodes[offset];
            if (node) {
              offset = node.nodeType === 3 ? node.length : node.childNodes.length;
            }
          }
          return { node: node, offset: offset };
        }

        // If index based start position then resolve it
        if (startContainer.nodeType == 1 && startContainer.hasChildNodes()) {
          lastIdx = startContainer.childNodes.length - 1;
          startContainer = startContainer.childNodes[startOffset > lastIdx ? lastIdx : startOffset];

          if (startContainer.nodeType == 3) {
            startOffset = 0;
          }
        }

        // If index based end position then resolve it
        if (endContainer.nodeType == 1 && endContainer.hasChildNodes()) {
          lastIdx = endContainer.childNodes.length - 1;
          endContainer = endContainer.childNodes[endOffset > lastIdx ? lastIdx : endOffset - 1];

          if (endContainer.nodeType == 3) {
            endOffset = endContainer.nodeValue.length;
          }
        }

        // Expands the node to the closes contentEditable false element if it exists
        function findParentContentEditable(node) {
          var parent = node;

          while (parent) {
            if (parent.nodeType === 1 && getContentEditable(parent)) {
              return getContentEditable(parent) === "false" ? parent : node;
            }

            parent = parent.parentNode;
          }

          return node;
        }

        function findWordEndPoint(container, offset, start) {
          var walker, node, pos, lastTextNode;

          function findSpace(node, offset) {
            var pos, pos2, str = node.nodeValue;

            if (typeof offset == "undefined") {
              offset = start ? str.length : 0;
            }

            if (start) {
              pos = str.lastIndexOf(' ', offset);
              pos2 = str.lastIndexOf('\u00a0', offset);
              pos = pos > pos2 ? pos : pos2;

              // Include the space on remove to avoid tag soup
              if (pos !== -1 && !remove) {
                pos++;
              }
            } else {
              pos = str.indexOf(' ', offset);
              pos2 = str.indexOf('\u00a0', offset);
              pos = pos !== -1 && (pos2 === -1 || pos < pos2) ? pos : pos2;
            }

            return pos;
          }

          if (container.nodeType === 3) {
            pos = findSpace(container, offset);

            if (pos !== -1) {
              return { container: container, offset: pos };
            }

            lastTextNode = container;
          }

          // Walk the nodes inside the block
          walker = new TreeWalker(container, dom.getParent(container, isBlock) || ed.getBody());
          while ((node = walker[start ? 'prev' : 'next']())) {
            if (node.nodeType === 3) {
              lastTextNode = node;
              pos = findSpace(node);

              if (pos !== -1) {
                return { container: node, offset: pos };
              }
            } else if (isBlock(node)) {
              break;
            }
          }

          if (lastTextNode) {
            if (start) {
              offset = 0;
            } else {
              offset = lastTextNode.length;
            }

            return { container: lastTextNode, offset: offset };
          }
        }

        function findSelectorEndPoint(container, siblingName) {
          var parents, i, y, curFormat;

          if (container.nodeType == 3 && container.nodeValue.length === 0 && container[siblingName]) {
            container = container[siblingName];
          }

          parents = getParents(container);
          for (i = 0; i < parents.length; i++) {
            for (y = 0; y < format.length; y++) {
              curFormat = format[y];

              // If collapsed state is set then skip formats that doesn't match that
              if ("collapsed" in curFormat && curFormat.collapsed !== rng.collapsed) {
                continue;
              }

              if (dom.is(parents[i], curFormat.selector)) {
                return parents[i];
              }
            }
          }

          return container;
        }

        function findBlockEndPoint(container, siblingName) {
          var node, root = dom.getRoot();

          // Expand to block of similar type
          if (!format[0].wrapper) {
            node = dom.getParent(container, format[0].block, root);
          }

          // Expand to first wrappable block element or any block element
          if (!node) {
            node = dom.getParent(container.nodeType == 3 ? container.parentNode : container, function (node) {
              // Fixes #6183 where it would expand to editable parent element in inline mode
              return node != root && isTextBlock(node);
            });
          }

          // Exclude inner lists from wrapping
          if (node && format[0].wrapper) {
            node = getParents(node, 'ul,ol').reverse()[0] || node;
          }

          // Didn't find a block element look for first/last wrappable element
          if (!node) {
            node = container;

            while (node[siblingName] && !isBlock(node[siblingName])) {
              node = node[siblingName];

              // Break on BR but include it will be removed later on
              // we can't remove it now since we need to check if it can be wrapped
              if (isEq(node, 'br')) {
                break;
              }
            }
          }

          return node || container;
        }

        // Expand to closest contentEditable element
        startContainer = findParentContentEditable(startContainer);
        endContainer = findParentContentEditable(endContainer);

        // Exclude bookmark nodes if possible
        if (isBookmarkNode(startContainer.parentNode) || isBookmarkNode(startContainer)) {
          startContainer = isBookmarkNode(startContainer) ? startContainer : startContainer.parentNode;
          startContainer = startContainer.nextSibling || startContainer;

          if (startContainer.nodeType == 3) {
            startOffset = 0;
          }
        }

        if (isBookmarkNode(endContainer.parentNode) || isBookmarkNode(endContainer)) {
          endContainer = isBookmarkNode(endContainer) ? endContainer : endContainer.parentNode;
          endContainer = endContainer.previousSibling || endContainer;

          if (endContainer.nodeType == 3) {
            endOffset = endContainer.length;
          }
        }

        if (format[0].inline) {
          if (rng.collapsed) {
            // Expand left to closest word boundary
            endPoint = findWordEndPoint(startContainer, startOffset, true);
            if (endPoint) {
              startContainer = endPoint.container;
              startOffset = endPoint.offset;
            }

            // Expand right to closest word boundary
            endPoint = findWordEndPoint(endContainer, endOffset);
            if (endPoint) {
              endContainer = endPoint.container;
              endOffset = endPoint.offset;
            }
          }

          // Avoid applying formatting to a trailing space.
          leaf = findLeaf(endContainer, endOffset);
          if (leaf.node) {
            while (leaf.node && leaf.offset === 0 && leaf.node.previousSibling) {
              leaf = findLeaf(leaf.node.previousSibling);
            }

            if (leaf.node && leaf.offset > 0 && leaf.node.nodeType === 3 &&
              leaf.node.nodeValue.charAt(leaf.offset - 1) === ' ') {

              if (leaf.offset > 1) {
                endContainer = leaf.node;
                endContainer.splitText(leaf.offset - 1);
              }
            }
          }
        }

        // Move start/end point up the tree if the leaves are sharp and if we are in different containers
        // Example * becomes !: !<p><b><i>*text</i><i>text*</i></b></p>!
        // This will reduce the number of wrapper elements that needs to be created
        // Move start point up the tree
        if (format[0].inline || format[0].block_expand) {
          if (!format[0].inline || (startContainer.nodeType != 3 || startOffset === 0)) {
            startContainer = findParentContainer(true);
          }

          if (!format[0].inline || (endContainer.nodeType != 3 || endOffset === endContainer.nodeValue.length)) {
            endContainer = findParentContainer();
          }
        }

        // Expand start/end container to matching selector
        if (format[0].selector && format[0].expand !== FALSE && !format[0].inline) {
          // Find new startContainer/endContainer if there is better one
          startContainer = findSelectorEndPoint(startContainer, 'previousSibling');
          endContainer = findSelectorEndPoint(endContainer, 'nextSibling');
        }

        // Expand start/end container to matching block element or text node
        if (format[0].block || format[0].selector) {
          // Find new startContainer/endContainer if there is better one
          startContainer = findBlockEndPoint(startContainer, 'previousSibling');
          endContainer = findBlockEndPoint(endContainer, 'nextSibling');

          // Non block element then try to expand up the leaf
          if (format[0].block) {
            if (!isBlock(startContainer)) {
              startContainer = findParentContainer(true);
            }

            if (!isBlock(endContainer)) {
              endContainer = findParentContainer();
            }
          }
        }

        // Setup index for startContainer
        if (startContainer.nodeType == 1) {
          startOffset = nodeIndex(startContainer);
          startContainer = startContainer.parentNode;
        }

        // Setup index for endContainer
        if (endContainer.nodeType == 1) {
          endOffset = nodeIndex(endContainer) + 1;
          endContainer = endContainer.parentNode;
        }

        // Return new range like object
        return {
          startContainer: startContainer,
          startOffset: startOffset,
          endContainer: endContainer,
          endOffset: endOffset
        };
      }

      function isColorFormatAndAnchor(node, format) {
        return format.links && node.tagName == 'A';
      }

      /**
       * Removes the specified format for the specified node. It will also remove the node if it doesn't have
       * any attributes if the format specifies it to do so.
       *
       * @private
       * @param {Object} format Format object with items to remove from node.
       * @param {Object} vars Name/value object with variables to apply to format.
       * @param {Node} node Node to remove the format styles on.
       * @param {Node} compareNode Optional compare node, if specified the styles will be compared to that node.
       * @return {Boolean} True/false if the node was removed or not.
       */
      function removeFormat(format, vars, node, compareNode) {
        var i, attrs, stylesModified;

        // Check if node matches format
        if (!matchName(node, format) && !isColorFormatAndAnchor(node, format)) {
          return FALSE;
        }

        // Should we compare with format attribs and styles
        if (format.remove != 'all') {
          // Remove styles
          each(format.styles, function (value, name) {
            value = normalizeStyleValue(replaceVars(value, vars), name);

            // Indexed array
            if (typeof name === 'number') {
              name = value;
              compareNode = 0;
            }

            if (format.remove_similar || (!compareNode || isEq(getStyle(compareNode, name), value))) {
              dom.setStyle(node, name, '');
            }

            stylesModified = 1;
          });

          // Remove style attribute if it's empty
          if (stylesModified && dom.getAttrib(node, 'style') === '') {
            node.removeAttribute('style');
            node.removeAttribute('data-mce-style');
          }

          // Remove attributes
          each(format.attributes, function (value, name) {
            var valueOut;

            value = replaceVars(value, vars);

            // Indexed array
            if (typeof name === 'number') {
              name = value;
              compareNode = 0;
            }

            if (!compareNode || isEq(dom.getAttrib(compareNode, name), value)) {
              // Keep internal classes
              if (name == 'class') {
                value = dom.getAttrib(node, name);
                if (value) {
                  // Build new class value where everything is removed except the internal prefixed classes
                  valueOut = '';
                  each(value.split(/\s+/), function (cls) {
                    if (/mce\-\w+/.test(cls)) {
                      valueOut += (valueOut ? ' ' : '') + cls;
                    }
                  });

                  // We got some internal classes left
                  if (valueOut) {
                    dom.setAttrib(node, name, valueOut);
                    return;
                  }
                }
              }

              // IE6 has a bug where the attribute doesn't get removed correctly
              if (name == "class") {
                node.removeAttribute('className');
              }

              // Remove mce prefixed attributes
              if (MCE_ATTR_RE.test(name)) {
                node.removeAttribute('data-mce-' + name);
              }

              node.removeAttribute(name);
            }
          });

          // Remove classes
          each(format.classes, function (value) {
            value = replaceVars(value, vars);

            if (!compareNode || dom.hasClass(compareNode, value)) {
              dom.removeClass(node, value);
            }
          });

          // Check for non internal attributes
          attrs = dom.getAttribs(node);
          for (i = 0; i < attrs.length; i++) {
            var attrName = attrs[i].nodeName;
            if (attrName.indexOf('_') !== 0 && attrName.indexOf('data-') !== 0) {
              return FALSE;
            }
          }
        }

        // Remove the inline child if it's empty for example <b> or <span>
        if (format.remove != 'none') {
          removeNode(node, format);
          return TRUE;
        }
      }

      /**
       * Removes the node and wrap it's children in paragraphs before doing so or
       * appends BR elements to the beginning/end of the block element if forcedRootBlocks is disabled.
       *
       * If the div in the node below gets removed:
       *  text<div>text</div>text
       *
       * Output becomes:
       *  text<div><br />text<br /></div>text
       *
       * So when the div is removed the result is:
       *  text<br />text<br />text
       *
       * @private
       * @param {Node} node Node to remove + apply BR/P elements to.
       * @param {Object} format Format rule.
       * @return {Node} Input node.
       */
      function removeNode(node, format) {
        var parentNode = node.parentNode, rootBlockElm;

        function find(node, next, inc) {
          node = getNonWhiteSpaceSibling(node, next, inc);

          return !node || (node.nodeName == 'BR' || isBlock(node));
        }

        if (format.block) {
          if (!forcedRootBlock) {
            // Append BR elements if needed before we remove the block
            if (isBlock(node) && !isBlock(parentNode)) {
              if (!find(node, FALSE) && !find(node.firstChild, TRUE, 1)) {
                node.insertBefore(dom.create('br'), node.firstChild);
              }

              if (!find(node, TRUE) && !find(node.lastChild, FALSE, 1)) {
                node.appendChild(dom.create('br'));
              }
            }
          } else {
            // Wrap the block in a forcedRootBlock if we are at the root of document
            if (parentNode == dom.getRoot()) {
              if (!format.list_block || !isEq(node, format.list_block)) {
                each(grep(node.childNodes), function (node) {
                  if (isValid(forcedRootBlock, node.nodeName.toLowerCase())) {
                    if (!rootBlockElm) {
                      rootBlockElm = wrap(node, forcedRootBlock);
                      dom.setAttribs(rootBlockElm, ed.settings.forced_root_block_attrs);
                    } else {
                      rootBlockElm.appendChild(node);
                    }
                  } else {
                    rootBlockElm = 0;
                  }
                });
              }
            }
          }
        }

        // Never remove nodes that isn't the specified inline element if a selector is specified too
        if (format.selector && format.inline && !isEq(format.inline, node)) {
          return;
        }

        dom.remove(node, 1);
      }

      /**
       * Returns the next/previous non whitespace node.
       *
       * @private
       * @param {Node} node Node to start at.
       * @param {boolean} next (Optional) Include next or previous node defaults to previous.
       * @param {boolean} inc (Optional) Include the current node in checking. Defaults to false.
       * @return {Node} Next or previous node or undefined if it wasn't found.
       */
      function getNonWhiteSpaceSibling(node, next, inc) {
        if (node) {
          next = next ? 'nextSibling' : 'previousSibling';

          for (node = inc ? node : node[next]; node; node = node[next]) {
            if (node.nodeType == 1 || !isWhiteSpaceNode(node)) {
              return node;
            }
          }
        }
      }

      /**
       * Merges the next/previous sibling element if they match.
       *
       * @private
       * @param {Node} prev Previous node to compare/merge.
       * @param {Node} next Next node to compare/merge.
       * @return {Node} Next node if we didn't merge and prev node if we did.
       */
      function mergeSiblings(prev, next) {
        var sibling, tmpSibling, elementUtils = new ElementUtils(dom);

        function findElementSibling(node, siblingName) {
          for (sibling = node; sibling; sibling = sibling[siblingName]) {
            if (sibling.nodeType == 3 && sibling.nodeValue.length !== 0) {
              return node;
            }

            if (sibling.nodeType == 1 && !isBookmarkNode(sibling)) {
              return sibling;
            }
          }

          return node;
        }

        // Check if next/prev exists and that they are elements
        if (prev && next) {
          // If previous sibling is empty then jump over it
          prev = findElementSibling(prev, 'previousSibling');
          next = findElementSibling(next, 'nextSibling');

          // Compare next and previous nodes
          if (elementUtils.compare(prev, next)) {
            // Append nodes between
            for (sibling = prev.nextSibling; sibling && sibling != next;) {
              tmpSibling = sibling;
              sibling = sibling.nextSibling;
              prev.appendChild(tmpSibling);
            }

            // Remove next node
            dom.remove(next);

            // Move children into prev node
            each(grep(next.childNodes), function (node) {
              prev.appendChild(node);
            });

            return prev;
          }
        }

        return next;
      }

      function getContainer(rng, start) {
        var container, offset, lastIdx;

        container = rng[start ? 'startContainer' : 'endContainer'];
        offset = rng[start ? 'startOffset' : 'endOffset'];

        if (container.nodeType == 1) {
          lastIdx = container.childNodes.length - 1;

          if (!start && offset) {
            offset--;
          }

          container = container.childNodes[offset > lastIdx ? lastIdx : offset];
        }

        // If start text node is excluded then walk to the next node
        if (container.nodeType === 3 && start && offset >= container.nodeValue.length) {
          container = new TreeWalker(container, ed.getBody()).next() || container;
        }

        // If end text node is excluded then walk to the previous node
        if (container.nodeType === 3 && !start && offset === 0) {
          container = new TreeWalker(container, ed.getBody()).prev() || container;
        }

        return container;
      }

      function performCaretAction(type, name, vars, similar) {
        var caretContainerId = '_mce_caret', debug = ed.settings.caret_debug;

        // Creates a caret container bogus element
        function createCaretContainer(fill) {
          var caretContainer = dom.create('span', { id: caretContainerId, 'data-mce-bogus': true, style: debug ? 'color:red' : '' });

          if (fill) {
            caretContainer.appendChild(ed.getDoc().createTextNode(INVISIBLE_CHAR));
          }

          return caretContainer;
        }

        function isCaretContainerEmpty(node, nodes) {
          while (node) {
            if ((node.nodeType === 3 && node.nodeValue !== INVISIBLE_CHAR) || node.childNodes.length > 1) {
              return false;
            }

            // Collect nodes
            if (nodes && node.nodeType === 1) {
              nodes.push(node);
            }

            node = node.firstChild;
          }

          return true;
        }

        // Returns any parent caret container element
        function getParentCaretContainer(node) {
          while (node) {
            if (node.id === caretContainerId) {
              return node;
            }

            node = node.parentNode;
          }
        }

        // Finds the first text node in the specified node
        function findFirstTextNode(node) {
          var walker;

          if (node) {
            walker = new TreeWalker(node, node);

            for (node = walker.current(); node; node = walker.next()) {
              if (node.nodeType === 3) {
                return node;
              }
            }
          }
        }

        // Removes the caret container for the specified node or all on the current document
        function removeCaretContainer(node, moveCaret) {
          var child, rng;

          if (!node) {
            node = getParentCaretContainer(selection.getStart());

            if (!node) {
              while ((node = dom.get(caretContainerId))) {
                removeCaretContainer(node, false);
              }
            }
          } else {
            rng = selection.getRng(true);

            if (isCaretContainerEmpty(node)) {
              if (moveCaret !== false) {
                rng.setStartBefore(node);
                rng.setEndBefore(node);
              }

              dom.remove(node);
            } else {
              child = findFirstTextNode(node);

              if (child.nodeValue.charAt(0) === INVISIBLE_CHAR) {
                child.deleteData(0, 1);

                // Fix for bug #6976
                if (rng.startContainer == child && rng.startOffset > 0) {
                  rng.setStart(child, rng.startOffset - 1);
                }

                if (rng.endContainer == child && rng.endOffset > 0) {
                  rng.setEnd(child, rng.endOffset - 1);
                }
              }

              dom.remove(node, 1);
            }

            selection.setRng(rng);
          }
        }

        // Applies formatting to the caret position
        function applyCaretFormat() {
          var rng, caretContainer, textNode, offset, bookmark, container, text;

          rng = selection.getRng(true);
          offset = rng.startOffset;
          container = rng.startContainer;
          text = container.nodeValue;

          caretContainer = getParentCaretContainer(selection.getStart());
          if (caretContainer) {
            textNode = findFirstTextNode(caretContainer);
          }

          // Expand to word if caret is in the middle of a text node and the char before/after is a alpha numeric character
          var wordcharRegex = /[^\s\u00a0\u00ad\u200b\ufeff]/;
          if (text && offset > 0 && offset < text.length &&
            wordcharRegex.test(text.charAt(offset)) && wordcharRegex.test(text.charAt(offset - 1))) {
            // Get bookmark of caret position
            bookmark = selection.getBookmark();

            // Collapse bookmark range (WebKit)
            rng.collapse(true);

            // Expand the range to the closest word and split it at those points
            rng = expandRng(rng, get(name));
            rng = rangeUtils.split(rng);

            // Apply the format to the range
            apply(name, vars, rng);

            // Move selection back to caret position
            selection.moveToBookmark(bookmark);
          } else {
            if (!caretContainer || textNode.nodeValue !== INVISIBLE_CHAR) {
              caretContainer = createCaretContainer(true);
              textNode = caretContainer.firstChild;

              rng.insertNode(caretContainer);
              offset = 1;

              apply(name, vars, caretContainer);
            } else {
              apply(name, vars, caretContainer);
            }

            // Move selection to text node
            selection.setCursorLocation(textNode, offset);
          }
        }

        function removeCaretFormat() {
          var rng = selection.getRng(true), container, offset, bookmark,
            hasContentAfter, node, formatNode, parents = [], i, caretContainer;

          container = rng.startContainer;
          offset = rng.startOffset;
          node = container;

          if (container.nodeType == 3) {
            if (offset != container.nodeValue.length) {
              hasContentAfter = true;
            }

            node = node.parentNode;
          }

          while (node) {
            if (matchNode(node, name, vars, similar)) {
              formatNode = node;
              break;
            }

            if (node.nextSibling) {
              hasContentAfter = true;
            }

            parents.push(node);
            node = node.parentNode;
          }

          // Node doesn't have the specified format
          if (!formatNode) {
            return;
          }

          // Is there contents after the caret then remove the format on the element
          if (hasContentAfter) {
            // Get bookmark of caret position
            bookmark = selection.getBookmark();

            // Collapse bookmark range (WebKit)
            rng.collapse(true);

            // Expand the range to the closest word and split it at those points
            rng = expandRng(rng, get(name), true);
            rng = rangeUtils.split(rng);

            // Remove the format from the range
            remove(name, vars, rng);

            // Move selection back to caret position
            selection.moveToBookmark(bookmark);
          } else {
            caretContainer = createCaretContainer();

            node = caretContainer;
            for (i = parents.length - 1; i >= 0; i--) {
              node.appendChild(dom.clone(parents[i], false));
              node = node.firstChild;
            }

            // Insert invisible character into inner most format element
            node.appendChild(dom.doc.createTextNode(INVISIBLE_CHAR));
            node = node.firstChild;

            var block = dom.getParent(formatNode, isTextBlock);

            if (block && dom.isEmpty(block)) {
              // Replace formatNode with caretContainer when removing format from empty block like <p><b>|</b></p>
              formatNode.parentNode.replaceChild(caretContainer, formatNode);
            } else {
              // Insert caret container after the formatted node
              dom.insertAfter(caretContainer, formatNode);
            }

            // Move selection to text node
            selection.setCursorLocation(node, 1);

            // If the formatNode is empty, we can remove it safely.
            if (dom.isEmpty(formatNode)) {
              dom.remove(formatNode);
            }
          }
        }

        // Checks if the parent caret container node isn't empty if that is the case it
        // will remove the bogus state on all children that isn't empty
        function unmarkBogusCaretParents() {
          var caretContainer;

          caretContainer = getParentCaretContainer(selection.getStart());
          if (caretContainer && !dom.isEmpty(caretContainer)) {
            walk(caretContainer, function (node) {
              if (node.nodeType == 1 && node.id !== caretContainerId && !dom.isEmpty(node)) {
                dom.setAttrib(node, 'data-mce-bogus', null);
              }
            }, 'childNodes');
          }
        }

        // Only bind the caret events once
        if (!ed._hasCaretEvents) {
          // Mark current caret container elements as bogus when getting the contents so we don't end up with empty elements
          markCaretContainersBogus = function () {
            var nodes = [], i;

            if (isCaretContainerEmpty(getParentCaretContainer(selection.getStart()), nodes)) {
              // Mark children
              i = nodes.length;
              while (i--) {
                dom.setAttrib(nodes[i], 'data-mce-bogus', '1');
              }
            }
          };

          disableCaretContainer = function (e) {
            var keyCode = e.keyCode;

            removeCaretContainer();

            // Remove caret container if it's empty
            if (keyCode == 8 && selection.isCollapsed() && selection.getStart().innerHTML == INVISIBLE_CHAR) {
              removeCaretContainer(getParentCaretContainer(selection.getStart()));
            }

            // Remove caret container on keydown and it's left/right arrow keys
            if (keyCode == 37 || keyCode == 39) {
              removeCaretContainer(getParentCaretContainer(selection.getStart()));
            }

            unmarkBogusCaretParents();
          };

          // Remove bogus state if they got filled by contents using editor.selection.setContent
          ed.on('SetContent', function (e) {
            if (e.selection) {
              unmarkBogusCaretParents();
            }
          });
          ed._hasCaretEvents = true;
        }

        // Do apply or remove caret format
        if (type == "apply") {
          applyCaretFormat();
        } else {
          removeCaretFormat();
        }
      }

      /**
       * Moves the start to the first suitable text node.
       */
      function moveStart(rng) {
        var container = rng.startContainer,
          offset = rng.startOffset,
          walker, node, nodes;

        if (rng.startContainer == rng.endContainer) {
          if (isInlineBlock(rng.startContainer.childNodes[rng.startOffset])) {
            return;
          }
        }

        // Convert text node into index if possible
        if (container.nodeType == 3 && offset >= container.nodeValue.length) {
          // Get the parent container location and walk from there
          offset = nodeIndex(container);
          container = container.parentNode;
        }

        // Move startContainer/startOffset in to a suitable node
        if (container.nodeType == 1) {
          nodes = container.childNodes;
          if (offset < nodes.length) {
            container = nodes[offset];
            walker = new TreeWalker(container, dom.getParent(container, dom.isBlock));
          } else {
            container = nodes[nodes.length - 1];
            walker = new TreeWalker(container, dom.getParent(container, dom.isBlock));
            walker.next(true);
          }

          for (node = walker.current(); node; node = walker.next()) {
            if (node.nodeType == 3 && !isWhiteSpaceNode(node)) {
              rng.setStart(node, 0);
              selection.setRng(rng);

              return;
            }
          }
        }
      }
    };
  }
);

/**
 * Diff.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * JS Implementation of the O(ND) Difference Algorithm by Eugene W. Myers.
 *
 * @class tinymce.undo.Diff
 * @private
 */
define(
  'tinymce.core.undo.Diff',
  [
  ],
  function () {
    var KEEP = 0, INSERT = 1, DELETE = 2;

    var diff = function (left, right) {
      var size = left.length + right.length + 2;
      var vDown = new Array(size);
      var vUp = new Array(size);

      var snake = function (start, end, diag) {
        return {
          start: start,
          end: end,
          diag: diag
        };
      };

      var buildScript = function (start1, end1, start2, end2, script) {
        var middle = getMiddleSnake(start1, end1, start2, end2);

        if (middle === null || middle.start === end1 && middle.diag === end1 - end2 ||
          middle.end === start1 && middle.diag === start1 - start2) {
          var i = start1;
          var j = start2;
          while (i < end1 || j < end2) {
            if (i < end1 && j < end2 && left[i] === right[j]) {
              script.push([KEEP, left[i]]);
              ++i;
              ++j;
            } else {
              if (end1 - start1 > end2 - start2) {
                script.push([DELETE, left[i]]);
                ++i;
              } else {
                script.push([INSERT, right[j]]);
                ++j;
              }
            }
          }
        } else {
          buildScript(start1, middle.start, start2, middle.start - middle.diag, script);
          for (var i2 = middle.start; i2 < middle.end; ++i2) {
            script.push([KEEP, left[i2]]);
          }
          buildScript(middle.end, end1, middle.end - middle.diag, end2, script);
        }
      };

      var buildSnake = function (start, diag, end1, end2) {
        var end = start;
        while (end - diag < end2 && end < end1 && left[end] === right[end - diag]) {
          ++end;
        }
        return snake(start, end, diag);
      };

      var getMiddleSnake = function (start1, end1, start2, end2) {
        // Myers Algorithm
        // Initialisations
        var m = end1 - start1;
        var n = end2 - start2;
        if (m === 0 || n === 0) {
          return null;
        }

        var delta = m - n;
        var sum = n + m;
        var offset = (sum % 2 === 0 ? sum : sum + 1) / 2;
        vDown[1 + offset] = start1;
        vUp[1 + offset] = end1 + 1;

        for (var d = 0; d <= offset; ++d) {
          // Down
          for (var k = -d; k <= d; k += 2) {
            // First step

            var i = k + offset;
            if (k === -d || k != d && vDown[i - 1] < vDown[i + 1]) {
              vDown[i] = vDown[i + 1];
            } else {
              vDown[i] = vDown[i - 1] + 1;
            }

            var x = vDown[i];
            var y = x - start1 + start2 - k;

            while (x < end1 && y < end2 && left[x] === right[y]) {
              vDown[i] = ++x;
              ++y;
            }
            // Second step
            if (delta % 2 != 0 && delta - d <= k && k <= delta + d) {
              if (vUp[i - delta] <= vDown[i]) {
                return buildSnake(vUp[i - delta], k + start1 - start2, end1, end2);
              }
            }
          }

          // Up
          for (k = delta - d; k <= delta + d; k += 2) {
            // First step
            i = k + offset - delta;
            if (k === delta - d || k != delta + d && vUp[i + 1] <= vUp[i - 1]) {
              vUp[i] = vUp[i + 1] - 1;
            } else {
              vUp[i] = vUp[i - 1];
            }

            x = vUp[i] - 1;
            y = x - start1 + start2 - k;
            while (x >= start1 && y >= start2 && left[x] === right[y]) {
              vUp[i] = x--;
              y--;
            }
            // Second step
            if (delta % 2 === 0 && -d <= k && k <= d) {
              if (vUp[i] <= vDown[i + delta]) {
                return buildSnake(vUp[i], k + start1 - start2, end1, end2);
              }
            }
          }
        }
      };

      var script = [];
      buildScript(0, left.length, 0, right.length, script);
      return script;
    };

    return {
      KEEP: KEEP,
      DELETE: DELETE,
      INSERT: INSERT,
      diff: diff
    };
  }
);
/**
 * Fragments.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module reads and applies html fragments from/to dom nodes.
 *
 * @class tinymce.undo.Fragments
 * @private
 */
define(
  'tinymce.core.undo.Fragments',
  [
    "tinymce.core.util.Arr",
    "tinymce.core.html.Entities",
    "tinymce.core.undo.Diff"
  ],
  function (Arr, Entities, Diff) {
    var getOuterHtml = function (elm) {
      if (elm.nodeType === 1) {
        return elm.outerHTML;
      } else if (elm.nodeType === 3) {
        return Entities.encodeRaw(elm.data, false);
      } else if (elm.nodeType === 8) {
        return '<!--' + elm.data + '-->';
      }

      return '';
    };

    var createFragment = function (html) {
      var frag, node, container;

      container = document.createElement("div");
      frag = document.createDocumentFragment();

      if (html) {
        container.innerHTML = html;
      }

      while ((node = container.firstChild)) {
        frag.appendChild(node);
      }

      return frag;
    };

    var insertAt = function (elm, html, index) {
      var fragment = createFragment(html);
      if (elm.hasChildNodes() && index < elm.childNodes.length) {
        var target = elm.childNodes[index];
        target.parentNode.insertBefore(fragment, target);
      } else {
        elm.appendChild(fragment);
      }
    };

    var removeAt = function (elm, index) {
      if (elm.hasChildNodes() && index < elm.childNodes.length) {
        var target = elm.childNodes[index];
        target.parentNode.removeChild(target);
      }
    };

    var applyDiff = function (diff, elm) {
      var index = 0;
      Arr.each(diff, function (action) {
        if (action[0] === Diff.KEEP) {
          index++;
        } else if (action[0] === Diff.INSERT) {
          insertAt(elm, action[1], index);
          index++;
        } else if (action[0] === Diff.DELETE) {
          removeAt(elm, index);
        }
      });
    };

    var read = function (elm) {
      return Arr.filter(Arr.map(elm.childNodes, getOuterHtml), function (item) {
        return item.length > 0;
      });
    };

    var write = function (fragments, elm) {
      var currentFragments = Arr.map(elm.childNodes, getOuterHtml);
      applyDiff(Diff.diff(currentFragments, fragments), elm);
      return elm;
    };

    return {
      read: read,
      write: write
    };
  }
);
/**
 * Levels.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module handles getting/setting undo levels to/from editor instances.
 *
 * @class tinymce.undo.Levels
 * @private
 */
define(
  'tinymce.core.undo.Levels',
  [
    "tinymce.core.util.Arr",
    "tinymce.core.undo.Fragments"
  ],
  function (Arr, Fragments) {
    var hasIframes = function (html) {
      return html.indexOf('</iframe>') !== -1;
    };

    var createFragmentedLevel = function (fragments) {
      return {
        type: 'fragmented',
        fragments: fragments,
        content: '',
        bookmark: null,
        beforeBookmark: null
      };
    };

    var createCompleteLevel = function (content) {
      return {
        type: 'complete',
        fragments: null,
        content: content,
        bookmark: null,
        beforeBookmark: null
      };
    };

    var createFromEditor = function (editor) {
      var fragments, content, trimmedFragments;

      fragments = Fragments.read(editor.getBody());
      trimmedFragments = Arr.map(fragments, function (html) {
        return editor.serializer.trimContent(html);
      });
      content = trimmedFragments.join('');

      return hasIframes(content) ? createFragmentedLevel(trimmedFragments) : createCompleteLevel(content);
    };

    var applyToEditor = function (editor, level, before) {
      if (level.type === 'fragmented') {
        Fragments.write(level.fragments, editor.getBody());
      } else {
        editor.setContent(level.content, { format: 'raw' });
      }

      editor.selection.moveToBookmark(before ? level.beforeBookmark : level.bookmark);
    };

    var getLevelContent = function (level) {
      return level.type === 'fragmented' ? level.fragments.join('') : level.content;
    };

    var isEq = function (level1, level2) {
      return getLevelContent(level1) === getLevelContent(level2);
    };

    return {
      createFragmentedLevel: createFragmentedLevel,
      createCompleteLevel: createCompleteLevel,
      createFromEditor: createFromEditor,
      applyToEditor: applyToEditor,
      isEq: isEq
    };
  }
);
/**
 * UndoManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles the undo/redo history levels for the editor. Since the built-in undo/redo has major drawbacks a custom one was needed.
 *
 * @class tinymce.UndoManager
 */
define(
  'tinymce.core.UndoManager',
  [
    "tinymce.core.util.VK",
    "tinymce.core.util.Tools",
    "tinymce.core.undo.Levels"
  ],
  function (VK, Tools, Levels) {
    return function (editor) {
      var self = this, index = 0, data = [], beforeBookmark, isFirstTypedCharacter, locks = 0;

      var isUnlocked = function () {
        return locks === 0;
      };

      var setTyping = function (typing) {
        if (isUnlocked()) {
          self.typing = typing;
        }
      };

      function setDirty(state) {
        editor.setDirty(state);
      }

      function addNonTypingUndoLevel(e) {
        setTyping(false);
        self.add({}, e);
      }

      function endTyping() {
        if (self.typing) {
          setTyping(false);
          self.add();
        }
      }

      // Add initial undo level when the editor is initialized
      editor.on('init', function () {
        self.add();
      });

      // Get position before an execCommand is processed
      editor.on('BeforeExecCommand', function (e) {
        var cmd = e.command;

        if (cmd !== 'Undo' && cmd !== 'Redo' && cmd !== 'mceRepaint') {
          endTyping();
          self.beforeChange();
        }
      });

      // Add undo level after an execCommand call was made
      editor.on('ExecCommand', function (e) {
        var cmd = e.command;

        if (cmd !== 'Undo' && cmd !== 'Redo' && cmd !== 'mceRepaint') {
          addNonTypingUndoLevel(e);
        }
      });

      editor.on('ObjectResizeStart Cut', function () {
        self.beforeChange();
      });

      editor.on('SaveContent ObjectResized blur', addNonTypingUndoLevel);
      editor.on('DragEnd', addNonTypingUndoLevel);

      editor.on('KeyUp', function (e) {
        var keyCode = e.keyCode;

        // If key is prevented then don't add undo level
        // This would happen on keyboard shortcuts for example
        if (e.isDefaultPrevented()) {
          return;
        }

        if ((keyCode >= 33 && keyCode <= 36) || (keyCode >= 37 && keyCode <= 40) || keyCode === 45 || e.ctrlKey) {
          addNonTypingUndoLevel();
          editor.nodeChanged();
        }

        if (keyCode === 46 || keyCode === 8) {
          editor.nodeChanged();
        }

        // Fire a TypingUndo/Change event on the first character entered
        if (isFirstTypedCharacter && self.typing && Levels.isEq(Levels.createFromEditor(editor), data[0]) === false) {
          if (editor.isDirty() === false) {
            setDirty(true);
            editor.fire('change', { level: data[0], lastLevel: null });
          }

          editor.fire('TypingUndo');
          isFirstTypedCharacter = false;
          editor.nodeChanged();
        }
      });

      editor.on('KeyDown', function (e) {
        var keyCode = e.keyCode;

        // If key is prevented then don't add undo level
        // This would happen on keyboard shortcuts for example
        if (e.isDefaultPrevented()) {
          return;
        }

        // Is character position keys left,right,up,down,home,end,pgdown,pgup,enter
        if ((keyCode >= 33 && keyCode <= 36) || (keyCode >= 37 && keyCode <= 40) || keyCode === 45) {
          if (self.typing) {
            addNonTypingUndoLevel(e);
          }

          return;
        }

        // If key isn't Ctrl+Alt/AltGr
        var modKey = (e.ctrlKey && !e.altKey) || e.metaKey;
        if ((keyCode < 16 || keyCode > 20) && keyCode !== 224 && keyCode !== 91 && !self.typing && !modKey) {
          self.beforeChange();
          setTyping(true);
          self.add({}, e);
          isFirstTypedCharacter = true;
        }
      });

      editor.on('MouseDown', function (e) {
        if (self.typing) {
          addNonTypingUndoLevel(e);
        }
      });

      // Add keyboard shortcuts for undo/redo keys
      editor.addShortcut('meta+z', '', 'Undo');
      editor.addShortcut('meta+y,meta+shift+z', '', 'Redo');

      editor.on('AddUndo Undo Redo ClearUndos', function (e) {
        if (!e.isDefaultPrevented()) {
          editor.nodeChanged();
        }
      });

      /*eslint consistent-this:0 */
      self = {
        // Explode for debugging reasons
        data: data,

        /**
         * State if the user is currently typing or not. This will add a typing operation into one undo
         * level instead of one new level for each keystroke.
         *
         * @field {Boolean} typing
         */
        typing: false,

        /**
         * Stores away a bookmark to be used when performing an undo action so that the selection is before
         * the change has been made.
         *
         * @method beforeChange
         */
        beforeChange: function () {
          if (isUnlocked()) {
            beforeBookmark = editor.selection.getBookmark(2, true);
          }
        },

        /**
         * Adds a new undo level/snapshot to the undo list.
         *
         * @method add
         * @param {Object} level Optional undo level object to add.
         * @param {DOMEvent} event Optional event responsible for the creation of the undo level.
         * @return {Object} Undo level that got added or null it a level wasn't needed.
         */
        add: function (level, event) {
          var i, settings = editor.settings, lastLevel, currentLevel;

          currentLevel = Levels.createFromEditor(editor);
          level = level || {};
          level = Tools.extend(level, currentLevel);

          if (isUnlocked() === false || editor.removed) {
            return null;
          }

          lastLevel = data[index];
          if (editor.fire('BeforeAddUndo', { level: level, lastLevel: lastLevel, originalEvent: event }).isDefaultPrevented()) {
            return null;
          }

          // Add undo level if needed
          if (lastLevel && Levels.isEq(lastLevel, level)) {
            return null;
          }

          // Set before bookmark on previous level
          if (data[index]) {
            data[index].beforeBookmark = beforeBookmark;
          }

          // Time to compress
          if (settings.custom_undo_redo_levels) {
            if (data.length > settings.custom_undo_redo_levels) {
              for (i = 0; i < data.length - 1; i++) {
                data[i] = data[i + 1];
              }

              data.length--;
              index = data.length;
            }
          }

          // Get a non intrusive normalized bookmark
          level.bookmark = editor.selection.getBookmark(2, true);

          // Crop array if needed
          if (index < data.length - 1) {
            data.length = index + 1;
          }

          data.push(level);
          index = data.length - 1;

          var args = { level: level, lastLevel: lastLevel, originalEvent: event };

          editor.fire('AddUndo', args);

          if (index > 0) {
            setDirty(true);
            editor.fire('change', args);
          }

          return level;
        },

        /**
         * Undoes the last action.
         *
         * @method undo
         * @return {Object} Undo level or null if no undo was performed.
         */
        undo: function () {
          var level;

          if (self.typing) {
            self.add();
            self.typing = false;
            setTyping(false);
          }

          if (index > 0) {
            level = data[--index];
            Levels.applyToEditor(editor, level, true);
            setDirty(true);
            editor.fire('undo', { level: level });
          }

          return level;
        },

        /**
         * Redoes the last action.
         *
         * @method redo
         * @return {Object} Redo level or null if no redo was performed.
         */
        redo: function () {
          var level;

          if (index < data.length - 1) {
            level = data[++index];
            Levels.applyToEditor(editor, level, false);
            setDirty(true);
            editor.fire('redo', { level: level });
          }

          return level;
        },

        /**
         * Removes all undo levels.
         *
         * @method clear
         */
        clear: function () {
          data = [];
          index = 0;
          self.typing = false;
          self.data = data;
          editor.fire('ClearUndos');
        },

        /**
         * Returns true/false if the undo manager has any undo levels.
         *
         * @method hasUndo
         * @return {Boolean} true/false if the undo manager has any undo levels.
         */
        hasUndo: function () {
          // Has undo levels or typing and content isn't the same as the initial level
          return index > 0 || (self.typing && data[0] && !Levels.isEq(Levels.createFromEditor(editor), data[0]));
        },

        /**
         * Returns true/false if the undo manager has any redo levels.
         *
         * @method hasRedo
         * @return {Boolean} true/false if the undo manager has any redo levels.
         */
        hasRedo: function () {
          return index < data.length - 1 && !self.typing;
        },

        /**
         * Executes the specified mutator function as an undo transaction. The selection
         * before the modification will be stored to the undo stack and if the DOM changes
         * it will add a new undo level. Any logic within the translation that adds undo levels will
         * be ignored. So a translation can include calls to execCommand or editor.insertContent.
         *
         * @method transact
         * @param {function} callback Function that gets executed and has dom manipulation logic in it.
         * @return {Object} Undo level that got added or null it a level wasn't needed.
         */
        transact: function (callback) {
          endTyping();
          self.beforeChange();
          self.ignore(callback);
          return self.add();
        },

        /**
         * Executes the specified mutator function as an undo transaction. But without adding an undo level.
         * Any logic within the translation that adds undo levels will be ignored. So a translation can
         * include calls to execCommand or editor.insertContent.
         *
         * @method ignore
         * @param {function} callback Function that gets executed and has dom manipulation logic in it.
         * @return {Object} Undo level that got added or null it a level wasn't needed.
         */
        ignore: function (callback) {
          try {
            locks++;
            callback();
          } finally {
            locks--;
          }
        },

        /**
         * Adds an extra "hidden" undo level by first applying the first mutation and store that to the undo stack
         * then roll back that change and do the second mutation on top of the stack. This will produce an extra
         * undo level that the user doesn't see until they undo.
         *
         * @method extra
         * @param {function} callback1 Function that does mutation but gets stored as a "hidden" extra undo level.
         * @param {function} callback2 Function that does mutation but gets displayed to the user.
         */
        extra: function (callback1, callback2) {
          var lastLevel, bookmark;

          if (self.transact(callback1)) {
            bookmark = data[index].bookmark;
            lastLevel = data[index - 1];
            Levels.applyToEditor(editor, lastLevel, true);

            if (self.transact(callback2)) {
              data[index - 1].beforeBookmark = bookmark;
            }
          }
        }
      };

      return self;
    };
  }
);

define(
  'ephox.sugar.api.node.Body',

  [
    'ephox.katamari.api.Thunk',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Node',
    'global!document'
  ],

  function (Thunk, Element, Node, document) {

    // Node.contains() is very, very, very good performance
    // http://jsperf.com/closest-vs-contains/5
    var inBody = function (element) {
      // Technically this is only required on IE, where contains() returns false for text nodes.
      // But it's cheap enough to run everywhere and Sugar doesn't have platform detection (yet).
      var dom = Node.isText(element) ? element.dom().parentNode : element.dom();

      // use ownerDocument.body to ensure this works inside iframes.
      // Normally contains is bad because an element "contains" itself, but here we want that.
      return dom !== undefined && dom !== null && dom.ownerDocument.body.contains(dom);
    };

    var body = Thunk.cached(function() {
      return getBody(Element.fromDom(document));
    });

    var getBody = function (doc) {
      var body = doc.dom().body;
      if (body === null || body === undefined) throw 'Body is not available yet';
      return Element.fromDom(body);
    };

    return {
      body: body,
      getBody: getBody,
      inBody: inBody
    };
  }
);

define(
  'ephox.sugar.impl.ClosestOrAncestor',

  [
    'ephox.katamari.api.Type',
    'ephox.katamari.api.Option'
  ],

  function (Type, Option) {
    return function (is, ancestor, scope, a, isRoot) {
      return is(scope, a) ?
              Option.some(scope) :
              Type.isFunction(isRoot) && isRoot(scope) ?
                  Option.none() :
                  ancestor(scope, a, isRoot);
    };
  }
);
define(
  'ephox.sugar.api.search.PredicateFind',

  [
    'ephox.katamari.api.Type',
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.sugar.api.node.Body',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.impl.ClosestOrAncestor'
  ],

  function (Type, Arr, Fun, Option, Body, Compare, Element, ClosestOrAncestor) {
    var first = function (predicate) {
      return descendant(Body.body(), predicate);
    };

    var ancestor = function (scope, predicate, isRoot) {
      var element = scope.dom();
      var stop = Type.isFunction(isRoot) ? isRoot : Fun.constant(false);

      while (element.parentNode) {
        element = element.parentNode;
        var el = Element.fromDom(element);

        if (predicate(el)) return Option.some(el);
        else if (stop(el)) break;
      }
      return Option.none();
    };

    var closest = function (scope, predicate, isRoot) {
      // This is required to avoid ClosestOrAncestor passing the predicate to itself
      var is = function (scope) {
        return predicate(scope);
      };
      return ClosestOrAncestor(is, ancestor, scope, predicate, isRoot);
    };

    var sibling = function (scope, predicate) {
      var element = scope.dom();
      if (!element.parentNode) return Option.none();

      return child(Element.fromDom(element.parentNode), function (x) {
        return !Compare.eq(scope, x) && predicate(x);
      });
    };

    var child = function (scope, predicate) {
      var result = Arr.find(scope.dom().childNodes,
        Fun.compose(predicate, Element.fromDom));
      return result.map(Element.fromDom);
    };

    var descendant = function (scope, predicate) {
      var descend = function (element) {
        for (var i = 0; i < element.childNodes.length; i++) {
          if (predicate(Element.fromDom(element.childNodes[i])))
            return Option.some(Element.fromDom(element.childNodes[i]));

          var res = descend(element.childNodes[i]);
          if (res.isSome())
            return res;
        }

        return Option.none();
      };

      return descend(scope.dom());
    };

    return {
      first: first,
      ancestor: ancestor,
      closest: closest,
      sibling: sibling,
      child: child,
      descendant: descendant
    };
  }
);

/**
 * CaretUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility functions shared by the caret logic.
 *
 * @private
 * @class tinymce.caret.CaretUtils
 */
define(
  'tinymce.core.caret.CaretUtils',
  [
    "tinymce.core.util.Fun",
    "tinymce.core.dom.TreeWalker",
    "tinymce.core.dom.NodeType",
    "tinymce.core.caret.CaretPosition",
    "tinymce.core.caret.CaretContainer",
    "tinymce.core.caret.CaretCandidate"
  ],
  function (Fun, TreeWalker, NodeType, CaretPosition, CaretContainer, CaretCandidate) {
    var isContentEditableTrue = NodeType.isContentEditableTrue,
      isContentEditableFalse = NodeType.isContentEditableFalse,
      isBlockLike = NodeType.matchStyleValues('display', 'block table table-cell table-caption'),
      isCaretContainer = CaretContainer.isCaretContainer,
      isCaretContainerBlock = CaretContainer.isCaretContainerBlock,
      curry = Fun.curry,
      isElement = NodeType.isElement,
      isCaretCandidate = CaretCandidate.isCaretCandidate;

    function isForwards(direction) {
      return direction > 0;
    }

    function isBackwards(direction) {
      return direction < 0;
    }

    function skipCaretContainers(walk, shallow) {
      var node;

      while ((node = walk(shallow))) {
        if (!isCaretContainerBlock(node)) {
          return node;
        }
      }

      return null;
    }

    function findNode(node, direction, predicateFn, rootNode, shallow) {
      var walker = new TreeWalker(node, rootNode);

      if (isBackwards(direction)) {
        if (isContentEditableFalse(node) || isCaretContainerBlock(node)) {
          node = skipCaretContainers(walker.prev, true);
          if (predicateFn(node)) {
            return node;
          }
        }

        while ((node = skipCaretContainers(walker.prev, shallow))) {
          if (predicateFn(node)) {
            return node;
          }
        }
      }

      if (isForwards(direction)) {
        if (isContentEditableFalse(node) || isCaretContainerBlock(node)) {
          node = skipCaretContainers(walker.next, true);
          if (predicateFn(node)) {
            return node;
          }
        }

        while ((node = skipCaretContainers(walker.next, shallow))) {
          if (predicateFn(node)) {
            return node;
          }
        }
      }

      return null;
    }

    function getEditingHost(node, rootNode) {
      for (node = node.parentNode; node && node != rootNode; node = node.parentNode) {
        if (isContentEditableTrue(node)) {
          return node;
        }
      }

      return rootNode;
    }

    function getParentBlock(node, rootNode) {
      while (node && node != rootNode) {
        if (isBlockLike(node)) {
          return node;
        }

        node = node.parentNode;
      }

      return null;
    }

    function isInSameBlock(caretPosition1, caretPosition2, rootNode) {
      return getParentBlock(caretPosition1.container(), rootNode) == getParentBlock(caretPosition2.container(), rootNode);
    }

    function isInSameEditingHost(caretPosition1, caretPosition2, rootNode) {
      return getEditingHost(caretPosition1.container(), rootNode) == getEditingHost(caretPosition2.container(), rootNode);
    }

    function getChildNodeAtRelativeOffset(relativeOffset, caretPosition) {
      var container, offset;

      if (!caretPosition) {
        return null;
      }

      container = caretPosition.container();
      offset = caretPosition.offset();

      if (!isElement(container)) {
        return null;
      }

      return container.childNodes[offset + relativeOffset];
    }

    function beforeAfter(before, node) {
      var range = node.ownerDocument.createRange();

      if (before) {
        range.setStartBefore(node);
        range.setEndBefore(node);
      } else {
        range.setStartAfter(node);
        range.setEndAfter(node);
      }

      return range;
    }

    function isNodesInSameBlock(rootNode, node1, node2) {
      return getParentBlock(node1, rootNode) == getParentBlock(node2, rootNode);
    }

    function lean(left, rootNode, node) {
      var sibling, siblingName;

      if (left) {
        siblingName = 'previousSibling';
      } else {
        siblingName = 'nextSibling';
      }

      while (node && node != rootNode) {
        sibling = node[siblingName];

        if (isCaretContainer(sibling)) {
          sibling = sibling[siblingName];
        }

        if (isContentEditableFalse(sibling)) {
          if (isNodesInSameBlock(rootNode, sibling, node)) {
            return sibling;
          }

          break;
        }

        if (isCaretCandidate(sibling)) {
          break;
        }

        node = node.parentNode;
      }

      return null;
    }

    var before = curry(beforeAfter, true);
    var after = curry(beforeAfter, false);

    function normalizeRange(direction, rootNode, range) {
      var node, container, offset, location;
      var leanLeft = curry(lean, true, rootNode);
      var leanRight = curry(lean, false, rootNode);

      container = range.startContainer;
      offset = range.startOffset;

      if (CaretContainer.isCaretContainerBlock(container)) {
        if (!isElement(container)) {
          container = container.parentNode;
        }

        location = container.getAttribute('data-mce-caret');

        if (location == 'before') {
          node = container.nextSibling;
          if (isContentEditableFalse(node)) {
            return before(node);
          }
        }

        if (location == 'after') {
          node = container.previousSibling;
          if (isContentEditableFalse(node)) {
            return after(node);
          }
        }
      }

      if (!range.collapsed) {
        return range;
      }

      if (NodeType.isText(container)) {
        if (isCaretContainer(container)) {
          if (direction === 1) {
            node = leanRight(container);
            if (node) {
              return before(node);
            }

            node = leanLeft(container);
            if (node) {
              return after(node);
            }
          }

          if (direction === -1) {
            node = leanLeft(container);
            if (node) {
              return after(node);
            }

            node = leanRight(container);
            if (node) {
              return before(node);
            }
          }

          return range;
        }

        if (CaretContainer.endsWithCaretContainer(container) && offset >= container.data.length - 1) {
          if (direction === 1) {
            node = leanRight(container);
            if (node) {
              return before(node);
            }
          }

          return range;
        }

        if (CaretContainer.startsWithCaretContainer(container) && offset <= 1) {
          if (direction === -1) {
            node = leanLeft(container);
            if (node) {
              return after(node);
            }
          }

          return range;
        }

        if (offset === container.data.length) {
          node = leanRight(container);
          if (node) {
            return before(node);
          }

          return range;
        }

        if (offset === 0) {
          node = leanLeft(container);
          if (node) {
            return after(node);
          }

          return range;
        }
      }

      return range;
    }

    function isNextToContentEditableFalse(relativeOffset, caretPosition) {
      return isContentEditableFalse(getChildNodeAtRelativeOffset(relativeOffset, caretPosition));
    }

    return {
      isForwards: isForwards,
      isBackwards: isBackwards,
      findNode: findNode,
      getEditingHost: getEditingHost,
      getParentBlock: getParentBlock,
      isInSameBlock: isInSameBlock,
      isInSameEditingHost: isInSameEditingHost,
      isBeforeContentEditableFalse: curry(isNextToContentEditableFalse, 0),
      isAfterContentEditableFalse: curry(isNextToContentEditableFalse, -1),
      normalizeRange: normalizeRange
    };
  }
);

/**
 * CaretWalker.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module contains logic for moving around a virtual caret in logical order within a DOM element.
 *
 * It ignores the most obvious invalid caret locations such as within a script element or within a
 * contentEditable=false element but it will return locations that isn't possible to render visually.
 *
 * @private
 * @class tinymce.caret.CaretWalker
 * @example
 * var caretWalker = new CaretWalker(rootElm);
 *
 * var prevLogicalCaretPosition = caretWalker.prev(CaretPosition.fromRangeStart(range));
 * var nextLogicalCaretPosition = caretWalker.next(CaretPosition.fromRangeEnd(range));
 */
define(
  'tinymce.core.caret.CaretWalker',
  [
    "tinymce.core.dom.NodeType",
    "tinymce.core.caret.CaretCandidate",
    "tinymce.core.caret.CaretPosition",
    "tinymce.core.caret.CaretUtils",
    "tinymce.core.util.Arr",
    "tinymce.core.util.Fun"
  ],
  function (NodeType, CaretCandidate, CaretPosition, CaretUtils, Arr, Fun) {
    var isContentEditableFalse = NodeType.isContentEditableFalse,
      isText = NodeType.isText,
      isElement = NodeType.isElement,
      isBr = NodeType.isBr,
      isForwards = CaretUtils.isForwards,
      isBackwards = CaretUtils.isBackwards,
      isCaretCandidate = CaretCandidate.isCaretCandidate,
      isAtomic = CaretCandidate.isAtomic,
      isEditableCaretCandidate = CaretCandidate.isEditableCaretCandidate;

    function getParents(node, rootNode) {
      var parents = [];

      while (node && node != rootNode) {
        parents.push(node);
        node = node.parentNode;
      }

      return parents;
    }

    function nodeAtIndex(container, offset) {
      if (container.hasChildNodes() && offset < container.childNodes.length) {
        return container.childNodes[offset];
      }

      return null;
    }

    function getCaretCandidatePosition(direction, node) {
      if (isForwards(direction)) {
        if (isCaretCandidate(node.previousSibling) && !isText(node.previousSibling)) {
          return CaretPosition.before(node);
        }

        if (isText(node)) {
          return CaretPosition(node, 0);
        }
      }

      if (isBackwards(direction)) {
        if (isCaretCandidate(node.nextSibling) && !isText(node.nextSibling)) {
          return CaretPosition.after(node);
        }

        if (isText(node)) {
          return CaretPosition(node, node.data.length);
        }
      }

      if (isBackwards(direction)) {
        if (isBr(node)) {
          return CaretPosition.before(node);
        }

        return CaretPosition.after(node);
      }

      return CaretPosition.before(node);
    }

    // Jumps over BR elements <p>|<br></p><p>a</p> -> <p><br></p><p>|a</p>
    function isBrBeforeBlock(node, rootNode) {
      var next;

      if (!NodeType.isBr(node)) {
        return false;
      }

      next = findCaretPosition(1, CaretPosition.after(node), rootNode);
      if (!next) {
        return false;
      }

      return !CaretUtils.isInSameBlock(CaretPosition.before(node), CaretPosition.before(next), rootNode);
    }

    function findCaretPosition(direction, startCaretPosition, rootNode) {
      var container, offset, node, nextNode, innerNode,
        rootContentEditableFalseElm, caretPosition;

      if (!isElement(rootNode) || !startCaretPosition) {
        return null;
      }

      if (startCaretPosition.isEqual(CaretPosition.after(rootNode)) && rootNode.lastChild) {
        caretPosition = CaretPosition.after(rootNode.lastChild);
        if (isBackwards(direction) && isCaretCandidate(rootNode.lastChild) && isElement(rootNode.lastChild)) {
          return isBr(rootNode.lastChild) ? CaretPosition.before(rootNode.lastChild) : caretPosition;
        }
      } else {
        caretPosition = startCaretPosition;
      }

      container = caretPosition.container();
      offset = caretPosition.offset();

      if (isText(container)) {
        if (isBackwards(direction) && offset > 0) {
          return CaretPosition(container, --offset);
        }

        if (isForwards(direction) && offset < container.length) {
          return CaretPosition(container, ++offset);
        }

        node = container;
      } else {
        if (isBackwards(direction) && offset > 0) {
          nextNode = nodeAtIndex(container, offset - 1);
          if (isCaretCandidate(nextNode)) {
            if (!isAtomic(nextNode)) {
              innerNode = CaretUtils.findNode(nextNode, direction, isEditableCaretCandidate, nextNode);
              if (innerNode) {
                if (isText(innerNode)) {
                  return CaretPosition(innerNode, innerNode.data.length);
                }

                return CaretPosition.after(innerNode);
              }
            }

            if (isText(nextNode)) {
              return CaretPosition(nextNode, nextNode.data.length);
            }

            return CaretPosition.before(nextNode);
          }
        }

        if (isForwards(direction) && offset < container.childNodes.length) {
          nextNode = nodeAtIndex(container, offset);
          if (isCaretCandidate(nextNode)) {
            if (isBrBeforeBlock(nextNode, rootNode)) {
              return findCaretPosition(direction, CaretPosition.after(nextNode), rootNode);
            }

            if (!isAtomic(nextNode)) {
              innerNode = CaretUtils.findNode(nextNode, direction, isEditableCaretCandidate, nextNode);
              if (innerNode) {
                if (isText(innerNode)) {
                  return CaretPosition(innerNode, 0);
                }

                return CaretPosition.before(innerNode);
              }
            }

            if (isText(nextNode)) {
              return CaretPosition(nextNode, 0);
            }

            return CaretPosition.after(nextNode);
          }
        }

        node = caretPosition.getNode();
      }

      if ((isForwards(direction) && caretPosition.isAtEnd()) || (isBackwards(direction) && caretPosition.isAtStart())) {
        node = CaretUtils.findNode(node, direction, Fun.constant(true), rootNode, true);
        if (isEditableCaretCandidate(node)) {
          return getCaretCandidatePosition(direction, node);
        }
      }

      nextNode = CaretUtils.findNode(node, direction, isEditableCaretCandidate, rootNode);

      rootContentEditableFalseElm = Arr.last(Arr.filter(getParents(container, rootNode), isContentEditableFalse));
      if (rootContentEditableFalseElm && (!nextNode || !rootContentEditableFalseElm.contains(nextNode))) {
        if (isForwards(direction)) {
          caretPosition = CaretPosition.after(rootContentEditableFalseElm);
        } else {
          caretPosition = CaretPosition.before(rootContentEditableFalseElm);
        }

        return caretPosition;
      }

      if (nextNode) {
        return getCaretCandidatePosition(direction, nextNode);
      }

      return null;
    }

    return function (rootNode) {
      return {
        /**
         * Returns the next logical caret position from the specificed input
         * caretPoisiton or null if there isn't any more positions left for example
         * at the end specified root element.
         *
         * @method next
         * @param {tinymce.caret.CaretPosition} caretPosition Caret position to start from.
         * @return {tinymce.caret.CaretPosition} CaretPosition or null if no position was found.
         */
        next: function (caretPosition) {
          return findCaretPosition(1, caretPosition, rootNode);
        },

        /**
         * Returns the previous logical caret position from the specificed input
         * caretPoisiton or null if there isn't any more positions left for example
         * at the end specified root element.
         *
         * @method prev
         * @param {tinymce.caret.CaretPosition} caretPosition Caret position to start from.
         * @return {tinymce.caret.CaretPosition} CaretPosition or null if no position was found.
         */
        prev: function (caretPosition) {
          return findCaretPosition(-1, caretPosition, rootNode);
        }
      };
    };
  }
);
/**
 * CaretFinder.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.caret.CaretFinder',
  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'tinymce.core.caret.CaretCandidate',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretWalker',
    'tinymce.core.dom.NodeType'
  ],
  function (Fun, Option, CaretCandidate, CaretPosition, CaretWalker, NodeType) {
    var fromPosition = function (forward, rootElement, position) {
      var walker = new CaretWalker(rootElement);
      return Option.from(forward ? walker.next(position) : walker.prev(position));
    };

    var walkToPositionIn = function (forward, rootNode, startNode) {
      var caretWalker = new CaretWalker(rootNode);
      var startPos = forward ? CaretPosition.before(startNode) : CaretPosition.after(startNode);
      return Option.from(forward ? caretWalker.next(startPos) : caretWalker.prev(startPos));
    };

    var afterElement = function (node) {
      return NodeType.isBr(node) ? CaretPosition.before(node) : CaretPosition.after(node);
    };

    var positionIn = function (forward, element) {
      var startNode = forward ? element.firstChild : element.lastChild;
      if (NodeType.isText(startNode)) {
        return Option.some(new CaretPosition(startNode, forward ? 0 : startNode.data.length));
      } else if (startNode) {
        if (CaretCandidate.isCaretCandidate(startNode)) {
          return Option.some(forward ? CaretPosition.before(startNode) : afterElement(startNode));
        } else {
          return walkToPositionIn(forward, element, startNode);
        }
      } else {
        return Option.none();
      }
    };

    return {
      fromPosition: fromPosition,
      positionIn: positionIn
    };
  }
);

/**
 * DeleteUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.DeleteUtils',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Option',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Node',
    'ephox.sugar.api.search.PredicateFind'
  ],
  function (Arr, Option, Compare, Element, Node, PredicateFind) {
    var toLookup = function (names) {
      var lookup = Arr.foldl(names, function (acc, name) {
        acc[name] = true;
        return acc;
      }, { });

      return function (elm) {
        return lookup[Node.name(elm)] === true;
      };
    };

    var isTextBlock = toLookup([
      'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'div', 'address', 'pre', 'form', 'blockquote', 'center',
      'dir', 'fieldset', 'header', 'footer', 'article', 'section', 'hgroup', 'aside', 'nav', 'figure'
    ]);

    var isBeforeRoot = function (rootNode) {
      return function (elm) {
        return Compare.eq(rootNode, Element.fromDom(elm.dom().parentNode));
      };
    };

    var getParentTextBlock = function (rootNode, elm) {
      return Compare.contains(rootNode, elm) ? PredicateFind.closest(elm, isTextBlock, isBeforeRoot(rootNode)) : Option.none();
    };

    return {
      getParentTextBlock: getParentTextBlock
    };
  }
);

define(
  'ephox.sugar.api.search.SelectorFind',

  [
    'ephox.sugar.api.search.PredicateFind',
    'ephox.sugar.api.search.Selectors',
    'ephox.sugar.impl.ClosestOrAncestor'
  ],

  function (PredicateFind, Selectors, ClosestOrAncestor) {
    // TODO: An internal SelectorFilter module that doesn't Element.fromDom() everything

    var first = function (selector) {
      return Selectors.one(selector);
    };

    var ancestor = function (scope, selector, isRoot) {
      return PredicateFind.ancestor(scope, function (e) {
        return Selectors.is(e, selector);
      }, isRoot);
    };

    var sibling = function (scope, selector) {
      return PredicateFind.sibling(scope, function (e) {
        return Selectors.is(e, selector);
      });
    };

    var child = function (scope, selector) {
      return PredicateFind.child(scope, function (e) {
        return Selectors.is(e, selector);
      });
    };

    var descendant = function (scope, selector) {
      return Selectors.one(selector, scope);
    };

    var closest = function (scope, selector, isRoot) {
      return ClosestOrAncestor(Selectors.is, ancestor, scope, selector, isRoot);
    };

    return {
      first: first,
      ancestor: ancestor,
      sibling: sibling,
      child: child,
      descendant: descendant,
      closest: closest
    };
  }
);

define(
  'ephox.sugar.api.search.SelectorExists',

  [
    'ephox.sugar.api.search.SelectorFind'
  ],

  function (SelectorFind) {
    var any = function (selector) {
      return SelectorFind.first(selector).isSome();
    };

    var ancestor = function (scope, selector, isRoot) {
      return SelectorFind.ancestor(scope, selector, isRoot).isSome();
    };

    var sibling = function (scope, selector) {
      return SelectorFind.sibling(scope, selector).isSome();
    };

    var child = function (scope, selector) {
      return SelectorFind.child(scope, selector).isSome();
    };

    var descendant = function (scope, selector) {
      return SelectorFind.descendant(scope, selector).isSome();
    };

    var closest = function (scope, selector, isRoot) {
      return SelectorFind.closest(scope, selector, isRoot).isSome();
    };

    return {
      any: any,
      ancestor: ancestor,
      sibling: sibling,
      child: child,
      descendant: descendant,
      closest: closest
    };
  }
);

/**
 * Empty.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.dom.Empty',
  [
    'ephox.katamari.api.Fun',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.search.SelectorExists',
    'tinymce.core.caret.CaretCandidate',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.TreeWalker'
  ],
  function (Fun, Compare, Element, SelectorExists, CaretCandidate, NodeType, TreeWalker) {
    var hasWhitespacePreserveParent = function (rootNode, node) {
      var rootElement = Element.fromDom(rootNode);
      var startNode = Element.fromDom(node);
      return SelectorExists.ancestor(startNode, 'pre,code', Fun.curry(Compare.eq, rootElement));
    };

    var isWhitespace = function (rootNode, node) {
      return NodeType.isText(node) && /^[ \t\r\n]*$/.test(node.data) && hasWhitespacePreserveParent(rootNode, node) === false;
    };

    var isNamedAnchor = function (node) {
      return NodeType.isElement(node) && node.nodeName === 'A' && node.hasAttribute('name');
    };

    var isContent = function (rootNode, node) {
      return (CaretCandidate.isCaretCandidate(node) && isWhitespace(rootNode, node) === false) || isNamedAnchor(node) || isBookmark(node);
    };

    var isBookmark = NodeType.hasAttribute('data-mce-bookmark');
    var isBogus = NodeType.hasAttribute('data-mce-bogus');
    var isBogusAll = NodeType.hasAttributeValue('data-mce-bogus', 'all');

    var isEmptyNode = function (targetNode) {
      var walker, node, brCount = 0;

      if (isContent(targetNode, targetNode)) {
        return false;
      } else {
        node = targetNode.firstChild;
        if (!node) {
          return true;
        }

        walker = new TreeWalker(node, targetNode);
        do {
          if (isBogusAll(node)) {
            node = walker.next(true);
            continue;
          }

          if (isBogus(node)) {
            node = walker.next();
            continue;
          }

          if (NodeType.isBr(node)) {
            brCount++;
            node = walker.next();
            continue;
          }

          if (isContent(targetNode, node)) {
            return false;
          }

          node = walker.next();
        } while (node);

        return brCount <= 1;
      }
    };

    var isEmpty = function (elm) {
      return isEmptyNode(elm.dom());
    };

    return {
      isEmpty: isEmpty
    };
  }
);

/**
 * BlockBoundary.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.BlockBoundary',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Options',
    'ephox.katamari.api.Struct',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Node',
    'ephox.sugar.api.search.PredicateFind',
    'ephox.sugar.api.search.Traverse',
    'tinymce.core.caret.CaretFinder',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.delete.DeleteUtils',
    'tinymce.core.dom.Empty',
    'tinymce.core.dom.NodeType'
  ],
  function (Arr, Fun, Option, Options, Struct, Compare, Element, Node, PredicateFind, Traverse, CaretFinder, CaretPosition, DeleteUtils, Empty, NodeType) {
    var BlockPosition = Struct.immutable('block', 'position');
    var BlockBoundary = Struct.immutable('from', 'to');

    var getBlockPosition = function (rootNode, pos) {
      var rootElm = Element.fromDom(rootNode);
      var containerElm = Element.fromDom(pos.container());
      return DeleteUtils.getParentTextBlock(rootElm, containerElm).map(function (block) {
        return BlockPosition(block, pos);
      });
    };

    var isDifferentBlocks = function (blockBoundary) {
      return Compare.eq(blockBoundary.from().block(), blockBoundary.to().block()) === false;
    };

    var hasSameParent = function (blockBoundary) {
      return Traverse.parent(blockBoundary.from().block()).bind(function (parent1) {
        return Traverse.parent(blockBoundary.to().block()).filter(function (parent2) {
          return Compare.eq(parent1, parent2);
        });
      }).isSome();
    };

    var isEditable = function (blockBoundary) {
      return NodeType.isContentEditableFalse(blockBoundary.from().block()) === false && NodeType.isContentEditableFalse(blockBoundary.to().block()) === false;
    };

    var skipLastBr = function (rootNode, forward, blockPosition) {
      if (NodeType.isBr(blockPosition.position().getNode()) && Empty.isEmpty(blockPosition.block()) === false) {
        return CaretFinder.positionIn(false, blockPosition.block().dom()).bind(function (lastPositionInBlock) {
          if (lastPositionInBlock.isEqual(blockPosition.position())) {
            return CaretFinder.fromPosition(forward, rootNode, lastPositionInBlock).bind(function (to) {
              return getBlockPosition(rootNode, to);
            });
          } else {
            return Option.some(blockPosition);
          }
        }).getOr(blockPosition);
      } else {
        return blockPosition;
      }
    };

    var readFromRange = function (rootNode, forward, rng) {
      var fromBlockPos = getBlockPosition(rootNode, CaretPosition.fromRangeStart(rng));
      var toBlockPos = fromBlockPos.bind(function (blockPos) {
        return CaretFinder.fromPosition(forward, rootNode, blockPos.position()).bind(function (to) {
          return getBlockPosition(rootNode, to).map(function (blockPos) {
            return skipLastBr(rootNode, forward, blockPos);
          });
        });
      });

      return Options.liftN([fromBlockPos, toBlockPos], BlockBoundary).filter(function (blockBoundary) {
        return isDifferentBlocks(blockBoundary) && hasSameParent(blockBoundary) && isEditable(blockBoundary);
      });
    };

    var read = function (rootNode, forward, rng) {
      return rng.collapsed ? readFromRange(rootNode, forward, rng) : Option.none();
    };

    return {
      read: read
    };
  }
);

/**
 * MergeBlocks.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.MergeBlocks',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Option',
    'ephox.sugar.api.dom.Insert',
    'ephox.sugar.api.dom.Remove',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.search.Traverse',
    'tinymce.core.caret.CaretFinder',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.Empty',
    'tinymce.core.dom.NodeType'
  ],
  function (Arr, Option, Insert, Remove, Element, Traverse, CaretFinder, CaretPosition, Empty, NodeType) {
    var mergeBlocksAndReposition = function (forward, fromBlock, toBlock, toPosition) {
      var children = Traverse.children(fromBlock);

      if (NodeType.isBr(toPosition.getNode())) {
        Remove.remove(Element.fromDom(toPosition.getNode()));
        toPosition = CaretFinder.positionIn(false, toBlock.dom()).getOr(toPosition);
      }

      if (Empty.isEmpty(fromBlock) === false) {
        Arr.each(children, function (node) {
          Insert.append(toBlock, node);
        });
      }

      if (Empty.isEmpty(fromBlock)) {
        Remove.remove(fromBlock);
      }

      return children.length > 0 ? Option.from(toPosition) : Option.none();
    };

    var mergeBlocks = function (forward, block1, block2) {
      if (forward) {
        if (Empty.isEmpty(block1)) {
          Remove.remove(block1);
          return CaretFinder.positionIn(true, block2.dom());
        } else {
          return CaretFinder.positionIn(false, block1.dom()).bind(function (toPosition) {
            return mergeBlocksAndReposition(forward, block2, block1, toPosition);
          });
        }
      } else {
        if (Empty.isEmpty(block2)) {
          Remove.remove(block2);
          return CaretFinder.positionIn(true, block1.dom());
        } else {
          return CaretFinder.positionIn(false, block2.dom()).bind(function (toPosition) {
            return mergeBlocksAndReposition(forward, block1, block2, toPosition);
          });
        }
      }
    };

    return {
      mergeBlocks: mergeBlocks
    };
  }
);

/**
 * BlockBoundaryDelete.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.BlockBoundaryDelete',
  [
    'tinymce.core.delete.BlockBoundary',
    'tinymce.core.delete.MergeBlocks'
  ],
  function (BlockBoundary, MergeBlocks) {
    var backspaceDelete = function (editor, forward) {
      var position;

      position = BlockBoundary.read(editor.getBody(), forward, editor.selection.getRng()).bind(function (blockBoundary) {
        return MergeBlocks.mergeBlocks(forward, blockBoundary.from().block(), blockBoundary.to().block());
      });

      position.each(function (pos) {
        editor.selection.setRng(pos.toRange());
      });

      return position.isSome();
    };

    return {
      backspaceDelete: backspaceDelete
    };
  }
);

/**
 * BlockRangeDelete.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.BlockRangeDelete',
  [
    'ephox.katamari.api.Options',
    'ephox.sugar.api.dom.Compare',
    'ephox.sugar.api.node.Element',
    'tinymce.core.delete.DeleteUtils',
    'tinymce.core.delete.MergeBlocks'
  ],
  function (Options, Compare, Element, DeleteUtils, MergeBlocks) {
    var deleteRange = function (rootNode, selection) {
      var rng = selection.getRng();

      return Options.liftN([
        DeleteUtils.getParentTextBlock(rootNode, Element.fromDom(rng.startContainer)),
        DeleteUtils.getParentTextBlock(rootNode, Element.fromDom(rng.endContainer))
      ], function (block1, block2) {
        if (Compare.eq(block1, block2) === false) {
          rng.deleteContents();

          MergeBlocks.mergeBlocks(true, block1, block2).each(function (pos) {
            selection.setRng(pos.toRange());
          });

          return true;
        } else {
          return false;
        }
      }).getOr(false);
    };

    var backspaceDelete = function (editor, forward) {
      var rootNode = Element.fromDom(editor.getBody());

      if (editor.selection.isCollapsed() === false) {
        return deleteRange(rootNode, editor.selection);
      } else {
        return false;
      }
    };

    return {
      backspaceDelete: backspaceDelete
    };
  }
);

define(
  'ephox.katamari.api.Adt',

  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Obj',
    'ephox.katamari.api.Type',
    'global!Array',
    'global!Error',
    'global!console'
  ],

  function (Arr, Obj, Type, Array, Error, console) {
    /*
     * Generates a church encoded ADT (https://en.wikipedia.org/wiki/Church_encoding)
     * For syntax and use, look at the test code.
     */
    var generate = function (cases) {
      // validation
      if (!Type.isArray(cases)) {
        throw new Error('cases must be an array');
      }
      if (cases.length === 0) {
        throw new Error('there must be at least one case');
      }

      var constructors = [ ];

      // adt is mutated to add the individual cases
      var adt = {};
      Arr.each(cases, function (acase, count) {
        var keys = Obj.keys(acase);

        // validation
        if (keys.length !== 1) {
          throw new Error('one and only one name per case');
        }

        var key = keys[0];
        var value = acase[key];

        // validation
        if (adt[key] !== undefined) {
          throw new Error('duplicate key detected:' + key);
        } else if (key === 'cata') {
          throw new Error('cannot have a case named cata (sorry)');
        } else if (!Type.isArray(value)) {
          // this implicitly checks if acase is an object
          throw new Error('case arguments must be an array');
        }

        constructors.push(key);
        //
        // constructor for key
        //
        adt[key] = function () {
          var argLength = arguments.length;

          // validation
          if (argLength !== value.length) {
            throw new Error('Wrong number of arguments to case ' + key + '. Expected ' + value.length + ' (' + value + '), got ' + argLength);
          }

          // Don't use array slice(arguments), makes the whole function unoptimisable on Chrome
          var args = new Array(argLength);
          for (var i = 0; i < args.length; i++) args[i] = arguments[i];


          var match = function (branches) {
            var branchKeys = Obj.keys(branches);
            if (constructors.length !== branchKeys.length) {
              throw new Error('Wrong number of arguments to match. Expected: ' + constructors.join(',') + '\nActual: ' + branchKeys.join(','));
            }

            var allReqd = Arr.forall(constructors, function (reqKey) {
              return Arr.contains(branchKeys, reqKey);
            });

            if (!allReqd) throw new Error('Not all branches were specified when using match. Specified: ' + branchKeys.join(', ') + '\nRequired: ' + constructors.join(', '));

            return branches[key].apply(null, args);
          };

          //
          // the fold function for key
          //
          return {
            fold: function (/* arguments */) {
              // runtime validation
              if (arguments.length !== cases.length) {
                throw new Error('Wrong number of arguments to fold. Expected ' + cases.length + ', got ' + arguments.length);
              }
              var target = arguments[count];
              return target.apply(null, args);
            },
            match: match,

            // NOTE: Only for debugging.
            log: function (label) {
              console.log(label, {
                constructors: constructors,
                constructor: key,
                params: args
              });
            }
          };
        };
      });

      return adt;
    };
    return {
      generate: generate
    };
  }
);
/**
 * CefDeleteAction.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.CefDeleteAction',
  [
    'ephox.katamari.api.Adt',
    'ephox.katamari.api.Option',
    'ephox.sugar.api.node.Element',
    'tinymce.core.caret.CaretFinder',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.delete.DeleteUtils',
    'tinymce.core.dom.Empty',
    'tinymce.core.dom.NodeType'
  ],
  function (Adt, Option, Element, CaretFinder, CaretPosition, CaretUtils, DeleteUtils, Empty, NodeType) {
    var DeleteAction = Adt.generate([
      { remove: [ 'element' ] },
      { moveToElement: [ 'element' ] },
      { moveToPosition: [ 'position' ] }
    ]);

    var isAtContentEditableBlockCaret = function (forward, from) {
      var elm = from.getNode(forward === false);
      var caretLocation = forward ? 'after' : 'before';
      return NodeType.isElement(elm) && elm.getAttribute('data-mce-caret') === caretLocation;
    };

    var deleteEmptyBlockOrMoveToCef = function (rootNode, forward, from, to) {
      var toCefElm = to.getNode(forward === false);
      return DeleteUtils.getParentTextBlock(Element.fromDom(rootNode), Element.fromDom(from.getNode())).map(function (blockElm) {
        return Empty.isEmpty(blockElm) ? DeleteAction.remove(blockElm.dom()) : DeleteAction.moveToElement(toCefElm);
      }).orThunk(function () {
        return Option.some(DeleteAction.moveToElement(toCefElm));
      });
    };

    var findCefPosition = function (rootNode, forward, from) {
      return CaretFinder.fromPosition(forward, rootNode, from).bind(function (to) {
        if (forward && NodeType.isContentEditableFalse(to.getNode())) {
          return deleteEmptyBlockOrMoveToCef(rootNode, forward, from, to);
        } else if (forward === false && NodeType.isContentEditableFalse(to.getNode(true))) {
          return deleteEmptyBlockOrMoveToCef(rootNode, forward, from, to);
        } else if (forward && CaretUtils.isAfterContentEditableFalse(from)) {
          return Option.some(DeleteAction.moveToPosition(to));
        } else if (forward === false && CaretUtils.isBeforeContentEditableFalse(from)) {
          return Option.some(DeleteAction.moveToPosition(to));
        } else {
          return Option.none();
        }
      });
    };

    var getContentEditableBlockAction = function (forward, elm) {
      if (forward && NodeType.isContentEditableFalse(elm.nextSibling)) {
        return Option.some(DeleteAction.moveToElement(elm.nextSibling));
      } else if (forward === false && NodeType.isContentEditableFalse(elm.previousSibling)) {
        return Option.some(DeleteAction.moveToElement(elm.previousSibling));
      } else {
        return Option.none();
      }
    };

    var getContentEditableAction = function (rootNode, forward, from) {
      if (isAtContentEditableBlockCaret(forward, from)) {
        return getContentEditableBlockAction(forward, from.getNode(forward === false))
          .fold(
            function () {
              return findCefPosition(rootNode, forward, from);
            },
            Option.some
          );
      } else {
        return findCefPosition(rootNode, forward, from);
      }
    };

    var read = function (rootNode, forward, rng) {
      var normalizedRange = CaretUtils.normalizeRange(forward ? 1 : -1, rootNode, rng);
      var from = CaretPosition.fromRangeStart(normalizedRange);

      if (forward === false && CaretUtils.isAfterContentEditableFalse(from)) {
        return Option.some(DeleteAction.remove(from.getNode(true)));
      } else if (forward && CaretUtils.isBeforeContentEditableFalse(from)) {
        return Option.some(DeleteAction.remove(from.getNode()));
      } else {
        return getContentEditableAction(rootNode, forward, from);
      }
    };

    return {
      read: read
    };
  }
);

/**
 * Bidi.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.text.Bidi',
  [
  ],
  function () {
    var strongRtl = /[\u0591-\u07FF\uFB1D-\uFDFF\uFE70-\uFEFC]/;

    var hasStrongRtl = function (text) {
      return strongRtl.test(text);
    };

    return {
      hasStrongRtl: hasStrongRtl
    };
  }
);
/**
 * InlineUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.InlineUtils',
  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Options',
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretFinder',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.caret.CaretWalker',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.text.Bidi'
  ],
  function (Fun, Option, Options, CaretContainer, CaretFinder, CaretPosition, CaretUtils, CaretWalker, DOMUtils, Bidi) {
    var isInlineTarget = function (elm) {
      return DOMUtils.DOM.is(elm, 'a[href],code');
    };

    var isRtl = function (element) {
      return DOMUtils.DOM.getStyle(element, 'direction', true) === 'rtl' || Bidi.hasStrongRtl(element.textContent);
    };

    var findInline = function (rootNode, pos) {
      return Option.from(DOMUtils.DOM.getParent(pos.container(), isInlineTarget, rootNode));
    };

    var hasSameParentBlock = function (rootNode, node1, node2) {
      var block1 = CaretUtils.getParentBlock(node1, rootNode);
      var block2 = CaretUtils.getParentBlock(node2, rootNode);
      return block1 && block1 === block2;
    };

    var isInInline = function (rootNode, pos) {
      return pos ? findInline(rootNode, pos).isSome() : false;
    };

    var isAtInlineEndPoint = function (rootNode, pos) {
      return findInline(rootNode, pos).map(function (inline) {
        return findCaretPosition(inline, false, pos).isNone() || findCaretPosition(inline, true, pos).isNone();
      }).getOr(false);
    };

    var isAtZwsp = function (pos) {
      return CaretContainer.isBeforeInline(pos) || CaretContainer.isAfterInline(pos);
    };

    var findCaretPositionIn = function (node, forward) {
      return CaretFinder.positionIn(forward, node);
    };

    var findCaretPosition = function (rootNode, forward, from) {
      return CaretFinder.fromPosition(forward, rootNode, from);
    };

    var normalizePosition = function (forward, pos) {
      var container = pos.container(), offset = pos.offset();

      if (forward) {
        return CaretContainer.isBeforeInline(pos) ? new CaretPosition(container, offset + 1) : pos;
      } else {
        return CaretContainer.isAfterInline(pos) ? new CaretPosition(container, offset - 1) : pos;
      }
    };

    var normalizeForwards = Fun.curry(normalizePosition, true);
    var normalizeBackwards = Fun.curry(normalizePosition, false);

    return {
      isInlineTarget: isInlineTarget,
      findInline: findInline,
      isInInline: isInInline,
      isRtl: isRtl,
      isAtInlineEndPoint: isAtInlineEndPoint,
      isAtZwsp: isAtZwsp,
      findCaretPositionIn: findCaretPositionIn,
      findCaretPosition: findCaretPosition,
      normalizePosition: normalizePosition,
      normalizeForwards: normalizeForwards,
      normalizeBackwards: normalizeBackwards,
      hasSameParentBlock: hasSameParentBlock
    };
  }
);
/**
 * DeleteElement.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.DeleteElement',
  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Options',
    'ephox.sugar.api.dom.Insert',
    'ephox.sugar.api.dom.Remove',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Node',
    'ephox.sugar.api.search.PredicateFind',
    'ephox.sugar.api.search.Traverse',
    'tinymce.core.caret.CaretCandidate',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.Empty',
    'tinymce.core.dom.NodeType',
    'tinymce.core.keyboard.InlineUtils'
  ],
  function (Fun, Option, Options, Insert, Remove, Element, Node, PredicateFind, Traverse, CaretCandidate, CaretPosition, Empty, NodeType, InlineUtils) {
    var needsReposition = function (pos, elm) {
      var container = pos.container();
      var offset = pos.offset();
      return CaretPosition.isTextPosition(pos) === false && container === elm.parentNode && offset > CaretPosition.before(elm).offset();
    };

    var reposition = function (elm, pos) {
      return needsReposition(pos, elm) ? new CaretPosition(pos.container(), pos.offset() - 1) : pos;
    };

    var beforeOrStartOf = function (node) {
      return NodeType.isText(node) ? new CaretPosition(node, 0) : CaretPosition.before(node);
    };

    var afterOrEndOf = function (node) {
      return NodeType.isText(node) ? new CaretPosition(node, node.data.length) : CaretPosition.after(node);
    };

    var getPreviousSiblingCaretPosition = function (elm) {
      if (CaretCandidate.isCaretCandidate(elm.previousSibling)) {
        return Option.some(afterOrEndOf(elm.previousSibling));
      } else {
        return elm.previousSibling ? InlineUtils.findCaretPositionIn(elm.previousSibling, false) : Option.none();
      }
    };

    var getNextSiblingCaretPosition = function (elm) {
      if (CaretCandidate.isCaretCandidate(elm.nextSibling)) {
        return Option.some(beforeOrStartOf(elm.nextSibling));
      } else {
        return elm.nextSibling ? InlineUtils.findCaretPositionIn(elm.nextSibling, true) : Option.none();
      }
    };

    var findCaretPositionBackwardsFromElm = function (rootElement, elm) {
      var startPosition = CaretPosition.before(elm.previousSibling ? elm.previousSibling : elm.parentNode);
      return InlineUtils.findCaretPosition(rootElement, false, startPosition).fold(
        function () {
          return InlineUtils.findCaretPosition(rootElement, true, CaretPosition.after(elm));
        },
        Option.some
      );
    };

    var findCaretPositionForwardsFromElm = function (rootElement, elm) {
      return InlineUtils.findCaretPosition(rootElement, true, CaretPosition.after(elm)).fold(
        function () {
          return InlineUtils.findCaretPosition(rootElement, false, CaretPosition.before(elm));
        },
        Option.some
      );
    };

    var findCaretPositionBackwards = function (rootElement, elm) {
      return getPreviousSiblingCaretPosition(elm).orThunk(function () {
        return getNextSiblingCaretPosition(elm);
      }).orThunk(function () {
        return findCaretPositionBackwardsFromElm(rootElement, elm);
      });
    };

    var findCaretPositionForward = function (rootElement, elm) {
      return getNextSiblingCaretPosition(elm).orThunk(function () {
        return getPreviousSiblingCaretPosition(elm);
      }).orThunk(function () {
        return findCaretPositionForwardsFromElm(rootElement, elm);
      });
    };

    var findCaretPosition = function (forward, rootElement, elm) {
      return forward ? findCaretPositionForward(rootElement, elm) : findCaretPositionBackwards(rootElement, elm);
    };

    var findCaretPosOutsideElmAfterDelete = function (forward, rootElement, elm) {
      return findCaretPosition(forward, rootElement, elm).map(Fun.curry(reposition, elm));
    };

    var setSelection = function (editor, forward, pos) {
      pos.fold(
        function () {
          editor.focus();
        },
        function (pos) {
          editor.selection.setRng(pos.toRange(), forward);
        }
      );
    };

    var eqRawNode = function (rawNode) {
      return function (elm) {
        return elm.dom() === rawNode;
      };
    };

    var isBlock = function (editor, elm) {
      return elm && editor.schema.getBlockElements().hasOwnProperty(Node.name(elm));
    };

    var paddEmptyBlock = function (elm) {
      if (Empty.isEmpty(elm)) {
        var br = Element.fromHtml('<br data-mce-bogus="1">');
        Remove.empty(elm);
        Insert.append(elm, br);
        return Option.some(CaretPosition.before(br.dom()));
      } else {
        return Option.none();
      }
    };

    // When deleting an element between two text nodes IE 11 doesn't automatically merge the adjacent text nodes
    var deleteNormalized = function (elm, afterDeletePosOpt) {
      return Options.liftN([Traverse.prevSibling(elm), Traverse.nextSibling(elm), afterDeletePosOpt], function (prev, next, afterDeletePos) {
        var offset, prevNode = prev.dom(), nextNode = next.dom();

        if (NodeType.isText(prevNode) && NodeType.isText(nextNode)) {
          offset = prevNode.data.length;
          prevNode.appendData(nextNode.data);
          Remove.remove(next);
          Remove.remove(elm);
          if (afterDeletePos.container() === nextNode) {
            return new CaretPosition(prevNode, offset);
          } else {
            return afterDeletePos;
          }
        } else {
          Remove.remove(elm);
          return afterDeletePos;
        }
      }).orThunk(function () {
        Remove.remove(elm);
        return afterDeletePosOpt;
      });
    };

    var deleteElement = function (editor, forward, elm) {
      var afterDeletePos = findCaretPosOutsideElmAfterDelete(forward, editor.getBody(), elm.dom());
      var parentBlock = PredicateFind.ancestor(elm, Fun.curry(isBlock, editor), eqRawNode(editor.getBody()));
      var normalizedAfterDeletePos = deleteNormalized(elm, afterDeletePos);

      parentBlock.bind(paddEmptyBlock).fold(
        function () {
          setSelection(editor, forward, normalizedAfterDeletePos);
        },
        function (paddPos) {
          setSelection(editor, forward, Option.some(paddPos));
        }
      );
    };

    return {
      deleteElement: deleteElement
    };
  }
);
/**
 * CefDelete.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.CefDelete',
  [
    'ephox.sugar.api.node.Element',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.delete.BlockBoundary',
    'tinymce.core.delete.CefDeleteAction',
    'tinymce.core.delete.DeleteElement',
    'tinymce.core.delete.MergeBlocks',
    'tinymce.core.dom.NodeType'
  ],
  function (Element, CaretPosition, CaretUtils, BlockBoundary, CefDeleteAction, DeleteElement, MergeBlocks, NodeType) {
    var deleteElement = function (editor, forward) {
      return function (element) {
        DeleteElement.deleteElement(editor, forward, Element.fromDom(element));
        return true;
      };
    };

    var moveToElement = function (editor, forward) {
      return function (element) {
        var pos = forward ? CaretPosition.before(element) : CaretPosition.after(element);
        editor.selection.setRng(pos.toRange());
        return true;
      };
    };

    var moveToPosition = function (editor) {
      return function (pos) {
        editor.selection.setRng(pos.toRange());
        return true;
      };
    };

    var backspaceDeleteCaret = function (editor, forward) {
      var result = CefDeleteAction.read(editor.getBody(), forward, editor.selection.getRng()).map(function (deleteAction) {
        return deleteAction.fold(
          deleteElement(editor, forward),
          moveToElement(editor, forward),
          moveToPosition(editor)
        );
      });

      return result.getOr(false);
    };

    var backspaceDeleteRange = function (editor, forward) {
      var selectedElement = editor.selection.getNode();
      if (NodeType.isContentEditableFalse(selectedElement)) {
        DeleteElement.deleteElement(editor, forward, Element.fromDom(editor.selection.getNode()));
        return true;
      } else {
        return false;
      }
    };

    var getContentEditableRoot = function (root, node) {
      while (node && node !== root) {
        if (NodeType.isContentEditableTrue(node) || NodeType.isContentEditableFalse(node)) {
          return node;
        }

        node = node.parentNode;
      }

      return null;
    };

    var paddEmptyElement = function (editor) {
      var br, ceRoot = getContentEditableRoot(editor.getBody(), editor.selection.getNode());

      if (NodeType.isContentEditableTrue(ceRoot) && editor.dom.isBlock(ceRoot) && editor.dom.isEmpty(ceRoot)) {
        br = editor.dom.create('br', { "data-mce-bogus": "1" });
        editor.dom.setHTML(ceRoot, '');
        ceRoot.appendChild(br);
        editor.selection.setRng(CaretPosition.before(br).toRange());
      }

      return true;
    };

    var backspaceDelete = function (editor, forward) {
      if (editor.selection.isCollapsed()) {
        return backspaceDeleteCaret(editor, forward);
      } else {
        return backspaceDeleteRange(editor, forward);
      }
    };

    return {
      backspaceDelete: backspaceDelete,
      paddEmptyElement: paddEmptyElement
    };
  }
);

/**
 * CaretContainerInline.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.caret.CaretContainerInline',
  [
    'ephox.katamari.api.Fun',
    'tinymce.core.dom.NodeType',
    'tinymce.core.text.Zwsp'
  ],
  function (Fun, NodeType, Zwsp) {
    var isText = NodeType.isText;

    var startsWithCaretContainer = function (node) {
      return isText(node) && node.data[0] === Zwsp.ZWSP;
    };

    var endsWithCaretContainer = function (node) {
      return isText(node) && node.data[node.data.length - 1] === Zwsp.ZWSP;
    };

    var createZwsp = function (node) {
      return node.ownerDocument.createTextNode(Zwsp.ZWSP);
    };

    var insertBefore = function (node) {
      if (isText(node.previousSibling)) {
        if (endsWithCaretContainer(node.previousSibling)) {
          return node.previousSibling;
        } else {
          node.previousSibling.appendData(Zwsp.ZWSP);
          return node.previousSibling;
        }
      } else if (isText(node)) {
        if (startsWithCaretContainer(node)) {
          return node;
        } else {
          node.insertData(0, Zwsp.ZWSP);
          return node;
        }
      } else {
        var newNode = createZwsp(node);
        node.parentNode.insertBefore(newNode, node);
        return newNode;
      }
    };

    var insertAfter = function (node) {
      if (isText(node.nextSibling)) {
        if (startsWithCaretContainer(node.nextSibling)) {
          return node.nextSibling;
        } else {
          node.nextSibling.insertData(0, Zwsp.ZWSP);
          return node.nextSibling;
        }
      } else if (isText(node)) {
        if (endsWithCaretContainer(node)) {
          return node;
        } else {
          node.appendData(Zwsp.ZWSP);
          return node;
        }
      } else {
        var newNode = createZwsp(node);
        if (node.nextSibling) {
          node.parentNode.insertBefore(newNode, node.nextSibling);
        } else {
          node.parentNode.appendChild(newNode);
        }
        return newNode;
      }
    };

    var insertInline = function (before, node) {
      return before ? insertBefore(node) : insertAfter(node);
    };

    return {
      insertInline: insertInline,
      insertInlineBefore: Fun.curry(insertInline, true),
      insertInlineAfter: Fun.curry(insertInline, false)
    };
  }
);
/**
 * CaretContainerRemove.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.caret.CaretContainerRemove',
  [
    'ephox.katamari.api.Arr',
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.NodeType',
    'tinymce.core.text.Zwsp',
    'tinymce.core.util.Tools'
  ],
  function (Arr, CaretContainer, CaretPosition, NodeType, Zwsp, Tools) {
    var isElement = NodeType.isElement;
    var isText = NodeType.isText;

    var removeNode = function (node) {
      var parentNode = node.parentNode;
      if (parentNode) {
        parentNode.removeChild(node);
      }
    };

    var getNodeValue = function (node) {
      try {
        return node.nodeValue;
      } catch (ex) {
        // IE sometimes produces "Invalid argument" on nodes
        return "";
      }
    };

    var setNodeValue = function (node, text) {
      if (text.length === 0) {
        removeNode(node);
      } else {
        node.nodeValue = text;
      }
    };

    var trimCount = function (text) {
      var trimmedText = Zwsp.trim(text);
      return { count: text.length - trimmedText.length, text: trimmedText };
    };

    var removeUnchanged = function (caretContainer, pos) {
      remove(caretContainer);
      return pos;
    };

    var removeTextAndReposition = function (caretContainer, pos) {
      var before = trimCount(caretContainer.data.substr(0, pos.offset()));
      var after = trimCount(caretContainer.data.substr(pos.offset()));
      var text = before.text + after.text;

      if (text.length > 0) {
        setNodeValue(caretContainer, text);
        return new CaretPosition(caretContainer, pos.offset() - before.count);
      } else {
        return pos;
      }
    };

    var removeElementAndReposition = function (caretContainer, pos) {
      var parentNode = pos.container();
      var newPosition = Arr.indexOf(parentNode.childNodes, caretContainer).map(function (index) {
        return index < pos.offset() ? new CaretPosition(parentNode, pos.offset() - 1) : pos;
      }).getOr(pos);
      remove(caretContainer);
      return newPosition;
    };

    var removeTextCaretContainer = function (caretContainer, pos) {
      return pos.container() === caretContainer ? removeTextAndReposition(caretContainer, pos) : removeUnchanged(caretContainer, pos);
    };

    var removeElementCaretContainer = function (caretContainer, pos) {
      return pos.container() === caretContainer.parentNode ? removeElementAndReposition(caretContainer, pos) : removeUnchanged(caretContainer, pos);
    };

    var removeAndReposition = function (container, pos) {
      return CaretPosition.isTextPosition(pos) ? removeTextCaretContainer(container, pos) : removeElementCaretContainer(container, pos);
    };

    var remove = function (caretContainerNode) {
      if (isElement(caretContainerNode) && CaretContainer.isCaretContainer(caretContainerNode)) {
        if (CaretContainer.hasContent(caretContainerNode)) {
          caretContainerNode.removeAttribute('data-mce-caret');
        } else {
          removeNode(caretContainerNode);
        }
      }

      if (isText(caretContainerNode)) {
        var text = Zwsp.trim(getNodeValue(caretContainerNode));
        setNodeValue(caretContainerNode, text);
      }
    };

    return {
      removeAndReposition: removeAndReposition,
      remove: remove
    };
  }
);
/**
 * BoundaryCaret.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.BoundaryCaret',
  [
    'ephox.katamari.api.Option',
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretContainerInline',
    'tinymce.core.caret.CaretContainerRemove',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.NodeType',
    'tinymce.core.keyboard.InlineUtils'
  ],
  function (Option, CaretContainer, CaretContainerInline, CaretContainerRemove, CaretPosition, NodeType, InlineUtils) {
    var insertInlinePos = function (pos, before) {
      if (NodeType.isText(pos.container())) {
        return CaretContainerInline.insertInline(before, pos.container());
      } else {
        return CaretContainerInline.insertInline(before, pos.getNode());
      }
    };

    var renderCaret = function (caret, location) {
      return location.fold(
        function (element) { // Before
          CaretContainerRemove.remove(caret.get());
          var text = CaretContainerInline.insertInlineBefore(element);
          caret.set(text);
          return Option.some(new CaretPosition(text, text.length - 1));
        },
        function (element) { // Start
          return InlineUtils.findCaretPositionIn(element, true).map(function (pos) {
            CaretContainerRemove.remove(caret.get());
            var text = insertInlinePos(pos, true);
            caret.set(text);
            return new CaretPosition(text, 1);
          });
        },
        function (element) { // End
          return InlineUtils.findCaretPositionIn(element, false).map(function (pos) {
            CaretContainerRemove.remove(caret.get());
            var text = insertInlinePos(pos, false);
            caret.set(text);
            return new CaretPosition(text, text.length - 1);
          });
        },
        function (element) { // After
          CaretContainerRemove.remove(caret.get());
          var text = CaretContainerInline.insertInlineAfter(element);
          caret.set(text);
          return Option.some(new CaretPosition(text, 1));
        }
      );
    };

    return {
      renderCaret: renderCaret
    };
  }
);
/**
 * LazyEvaluator.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.util.LazyEvaluator',
  [
    'ephox.katamari.api.Option'
  ],
  function (Option) {
    var evaluateUntil = function (fns, args) {
      for (var i = 0; i < fns.length; i++) {
        var result = fns[i].apply(null, args);
        if (result.isSome()) {
          return result;
        }
      }

      return Option.none();
    };

    return {
      evaluateUntil: evaluateUntil
    };
  }
);
/**
 * BoundaryLocation.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.BoundaryLocation',
  [
    'ephox.katamari.api.Adt',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Options',
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.dom.NodeType',
    'tinymce.core.keyboard.InlineUtils',
    'tinymce.core.util.LazyEvaluator'
  ],
  function (Adt, Fun, Option, Options, CaretContainer, CaretPosition, CaretUtils, NodeType, InlineUtils, LazyEvaluator) {
    var Location = Adt.generate([
      { before: [ 'element' ] },
      { start: [ 'element' ] },
      { end: [ 'element' ] },
      { after: [ 'element' ] }
    ]);

    var rescope = function (rootNode, node) {
      var parentBlock = CaretUtils.getParentBlock(node, rootNode);
      return parentBlock ? parentBlock : rootNode;
    };

    var before = function (rootNode, pos) {
      var nPos = InlineUtils.normalizeForwards(pos);
      var scope = rescope(rootNode, nPos.container());
      return InlineUtils.findInline(scope, nPos).fold(
        function () {
          return InlineUtils.findCaretPosition(scope, true, nPos)
            .bind(Fun.curry(InlineUtils.findInline, scope))
            .map(function (inline) {
              return Location.before(inline);
            });
        },
        Option.none
      );
    };

    var start = function (rootNode, pos) {
      var nPos = InlineUtils.normalizeBackwards(pos);
      return InlineUtils.findInline(rootNode, nPos).bind(function (inline) {
        var prevPos = InlineUtils.findCaretPosition(inline, false, nPos);
        return prevPos.isNone() ? Option.some(Location.start(inline)) : Option.none();
      });
    };

    var end = function (rootNode, pos) {
      var nPos = InlineUtils.normalizeForwards(pos);
      return InlineUtils.findInline(rootNode, nPos).bind(function (inline) {
        var nextPos = InlineUtils.findCaretPosition(inline, true, nPos);
        return nextPos.isNone() ? Option.some(Location.end(inline)) : Option.none();
      });
    };

    var after = function (rootNode, pos) {
      var nPos = InlineUtils.normalizeBackwards(pos);
      var scope = rescope(rootNode, nPos.container());
      return InlineUtils.findInline(scope, nPos).fold(
        function () {
          return InlineUtils.findCaretPosition(scope, false, nPos)
            .bind(Fun.curry(InlineUtils.findInline, scope))
            .map(function (inline) {
              return Location.after(inline);
            });
        },
        Option.none
      );
    };

    var isValidLocation = function (location) {
      return InlineUtils.isRtl(getElement(location)) === false;
    };

    var readLocation = function (rootNode, pos) {
      var location = LazyEvaluator.evaluateUntil([
        before,
        start,
        end,
        after
      ], [rootNode, pos]);

      return location.filter(isValidLocation);
    };

    var getElement = function (location) {
      return location.fold(
        Fun.identity, // Before
        Fun.identity, // Start
        Fun.identity, // End
        Fun.identity  // After
      );
    };

    var getName = function (location) {
      return location.fold(
        Fun.constant('before'), // Before
        Fun.constant('start'),  // Start
        Fun.constant('end'),    // End
        Fun.constant('after')   // After
      );
    };

    var outside = function (location) {
      return location.fold(
        Location.before, // Before
        Location.before, // Start
        Location.after,  // End
        Location.after   // After
      );
    };

    var inside = function (location) {
      return location.fold(
        Location.start, // Before
        Location.start, // Start
        Location.end,   // End
        Location.end    // After
      );
    };

    var isEq = function (location1, location2) {
      return getName(location1) === getName(location2) && getElement(location1) === getElement(location2);
    };

    var betweenInlines = function (forward, rootNode, from, to, location) {
      return Options.liftN([
        InlineUtils.findInline(rootNode, from),
        InlineUtils.findInline(rootNode, to)
      ], function (fromInline, toInline) {
        if (fromInline !== toInline && InlineUtils.hasSameParentBlock(rootNode, fromInline, toInline)) {
          // Force after since some browsers normalize and lean left into the closest inline
          return Location.after(forward ? fromInline : toInline);
        } else {
          return location;
        }
      }).getOr(location);
    };

    var skipNoMovement = function (fromLocation, toLocation) {
      return fromLocation.fold(
        Fun.constant(true),
        function (fromLocation) {
          return !isEq(fromLocation, toLocation);
        }
      );
    };

    var findLocationTraverse = function (forward, rootNode, fromLocation, pos) {
      var from = InlineUtils.normalizePosition(forward, pos);
      var to = InlineUtils.findCaretPosition(rootNode, forward, from).map(Fun.curry(InlineUtils.normalizePosition, forward));

      var location = to.fold(
        function () {
          return fromLocation.map(outside);
        },
        function (to) {
          return readLocation(rootNode, to)
            .map(Fun.curry(betweenInlines, forward, rootNode, from, to))
            .filter(Fun.curry(skipNoMovement, fromLocation));
        }
      );

      return location.filter(isValidLocation);
    };

    var findLocationSimple = function (forward, location) {
      if (forward) {
        return location.fold(
          Fun.compose(Option.some, Location.start), // Before -> Start
          Option.none,
          Fun.compose(Option.some, Location.after), // End -> After
          Option.none
        );
      } else {
        return location.fold(
          Option.none,
          Fun.compose(Option.some, Location.before), // Before <- Start
          Option.none,
          Fun.compose(Option.some, Location.end) // End <- After
        );
      }
    };

    var findLocation = function (forward, rootNode, pos) {
      var from = InlineUtils.normalizePosition(forward, pos);
      var fromLocation = readLocation(rootNode, from);

      return readLocation(rootNode, from).bind(Fun.curry(findLocationSimple, forward)).orThunk(function () {
        return findLocationTraverse(forward, rootNode, fromLocation, pos);
      });
    };

    return {
      readLocation: readLocation,
      prevLocation: Fun.curry(findLocation, false),
      nextLocation: Fun.curry(findLocation, true),
      getElement: getElement,
      outside: outside,
      inside: inside
    };
  }
);
define(
  'ephox.katamari.api.Cell',

  [
  ],

  function () {
    var Cell = function (initial) {
      var value = initial;

      var get = function () {
        return value;
      };

      var set = function (v) {
        value = v;
      };

      var clone = function () {
        return Cell(get());
      };

      return {
        get: get,
        set: set,
        clone: clone
      };
    };

    return Cell;
  }
);

/**
 * BoundarySelection.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.BoundarySelection',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Cell',
    'ephox.katamari.api.Fun',
    'tinymce.core.caret.CaretContainerRemove',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.keyboard.BoundaryCaret',
    'tinymce.core.keyboard.BoundaryLocation',
    'tinymce.core.keyboard.InlineUtils'
  ],
  function (Arr, Cell, Fun, CaretContainerRemove, CaretPosition, BoundaryCaret, BoundaryLocation, InlineUtils) {
    var setCaretPosition = function (editor, pos) {
      var rng = editor.dom.createRng();
      rng.setStart(pos.container(), pos.offset());
      rng.setEnd(pos.container(), pos.offset());
      editor.selection.setRng(rng);
    };

    var isFeatureEnabled = function (editor) {
      return editor.settings.inline_boundaries !== false;
    };

    var setSelected = function (state, elm) {
      if (state) {
        elm.setAttribute('data-mce-selected', '1');
      } else {
        elm.removeAttribute('data-mce-selected', '1');
      }
    };

    var renderCaretLocation = function (editor, caret, location) {
      return BoundaryCaret.renderCaret(caret, location).map(function (pos) {
        setCaretPosition(editor, pos);
        return location;
      });
    };

    var findLocation = function (editor, caret, forward) {
      var rootNode = editor.getBody();
      var from = CaretPosition.fromRangeStart(editor.selection.getRng());
      var location = forward ? BoundaryLocation.nextLocation(rootNode, from) : BoundaryLocation.prevLocation(rootNode, from);
      return location.bind(function (location) {
        return renderCaretLocation(editor, caret, location);
      });
    };

    var toggleInlines = function (dom, elms) {
      var selectedInlines = dom.select('a[href][data-mce-selected],code[data-mce-selected]');
      var targetInlines = Arr.filter(elms, InlineUtils.isInlineTarget);
      Arr.each(Arr.difference(selectedInlines, targetInlines), Fun.curry(setSelected, false));
      Arr.each(Arr.difference(targetInlines, selectedInlines), Fun.curry(setSelected, true));
    };

    var safeRemoveCaretContainer = function (editor, caret) {
      if (editor.selection.isCollapsed() && editor.composing !== true && caret.get()) {
        var pos = CaretPosition.fromRangeStart(editor.selection.getRng());
        if (CaretPosition.isTextPosition(pos) && InlineUtils.isAtZwsp(pos) === false) {
          setCaretPosition(editor, CaretContainerRemove.removeAndReposition(caret.get(), pos));
          caret.set(null);
        }
      }
    };

    var renderInsideInlineCaret = function (editor, caret, elms) {
      if (editor.selection.isCollapsed()) {
        var inlines = Arr.filter(elms, InlineUtils.isInlineTarget);
        Arr.each(inlines, function (inline) {
          var pos = CaretPosition.fromRangeStart(editor.selection.getRng());
          BoundaryLocation.readLocation(editor.getBody(), pos).bind(function (location) {
            return renderCaretLocation(editor, caret, location);
          });
        });
      }
    };

    var move = function (editor, caret, forward) {
      return function () {
        return isFeatureEnabled(editor) ? findLocation(editor, caret, forward).isSome() : false;
      };
    };

    var setupSelectedState = function (editor) {
      var caret = new Cell(null);

      editor.on('NodeChange', function (e) {
        if (isFeatureEnabled(editor)) {
          toggleInlines(editor.dom, e.parents);
          safeRemoveCaretContainer(editor, caret);
          renderInsideInlineCaret(editor, caret, e.parents);
        }
      });

      return caret;
    };

    return {
      move: move,
      setupSelectedState: setupSelectedState,
      setCaretPosition: setCaretPosition
    };
  }
);
/**
 * InlineBoundaryDelete.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.InlineBoundaryDelete',
  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.katamari.api.Options',
    'ephox.sugar.api.node.Element',
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.delete.DeleteElement',
    'tinymce.core.keyboard.BoundaryCaret',
    'tinymce.core.keyboard.BoundaryLocation',
    'tinymce.core.keyboard.BoundarySelection',
    'tinymce.core.keyboard.InlineUtils'
  ],
  function (Fun, Option, Options, Element, CaretContainer, CaretPosition, CaretUtils, DeleteElement, BoundaryCaret, BoundaryLocation, BoundarySelection, InlineUtils) {
    var isFeatureEnabled = function (editor) {
      return editor.settings.inline_boundaries !== false;
    };

    var rangeFromPositions = function (from, to) {
      var range = document.createRange();

      range.setStart(from.container(), from.offset());
      range.setEnd(to.container(), to.offset());

      return range;
    };

    var setCaretLocation = function (editor, caret) {
      return function (location) {
        return BoundaryCaret.renderCaret(caret, location).map(function (pos) {
          BoundarySelection.setCaretPosition(editor, pos);
          return true;
        }).getOr(false);
      };
    };

    var deleteFromTo = function (editor, caret, from, to) {
      var rootNode = editor.getBody();

      editor.undoManager.ignore(function () {
        editor.selection.setRng(rangeFromPositions(from, to));
        editor.execCommand('Delete');

        BoundaryLocation.readLocation(rootNode, CaretPosition.fromRangeStart(editor.selection.getRng()))
          .map(BoundaryLocation.inside)
          .map(setCaretLocation(editor, caret));
      });

      editor.nodeChanged();
    };

    var rescope = function (rootNode, node) {
      var parentBlock = CaretUtils.getParentBlock(node, rootNode);
      return parentBlock ? parentBlock : rootNode;
    };

    var backspaceDeleteCollapsed = function (editor, caret, forward, from) {
      var rootNode = rescope(editor.getBody(), from.container());
      var fromLocation = BoundaryLocation.readLocation(rootNode, from);

      return fromLocation.bind(function (location) {
        if (forward) {
          return location.fold(
            Fun.constant(Option.some(BoundaryLocation.inside(location))), // Before
            Option.none, // Start
            Fun.constant(Option.some(BoundaryLocation.outside(location))), // End
            Option.none  // After
          );
        } else {
          return location.fold(
            Option.none, // Before
            Fun.constant(Option.some(BoundaryLocation.outside(location))), // Start
            Option.none, // End
            Fun.constant(Option.some(BoundaryLocation.inside(location)))  // After
          );
        }
      })
      .map(setCaretLocation(editor, caret))
      .getOrThunk(function () {
        var toPosition = InlineUtils.findCaretPosition(rootNode, forward, from);
        var toLocation = toPosition.bind(function (pos) {
          return BoundaryLocation.readLocation(rootNode, pos);
        });

        if (fromLocation.isSome() && toLocation.isSome()) {
          return InlineUtils.findInline(rootNode, from).map(function (elm) {
            DeleteElement.deleteElement(editor, forward, Element.fromDom(elm));
            return true;
          }).getOr(false);
        } else {
          return toLocation.map(function (_) {
            toPosition.map(function (to) {
              if (forward) {
                deleteFromTo(editor, caret, from, to);
              } else {
                deleteFromTo(editor, caret, to, from);
              }
            });

            return true;
          }).getOr(false);
        }
      });
    };

    var backspaceDelete = function (editor, caret, forward) {
      if (editor.selection.isCollapsed() && isFeatureEnabled(editor)) {
        var from = CaretPosition.fromRangeStart(editor.selection.getRng());
        return backspaceDeleteCollapsed(editor, caret, forward, from);
      }

      return false;
    };

    return {
      backspaceDelete: backspaceDelete
    };
  }
);
/**
 * Commands.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.delete.DeleteCommands',
  [
    'tinymce.core.delete.BlockBoundaryDelete',
    'tinymce.core.delete.BlockRangeDelete',
    'tinymce.core.delete.CefDelete',
    'tinymce.core.delete.InlineBoundaryDelete'
  ],
  function (BlockBoundaryDelete, BlockRangeDelete, CefDelete, BoundaryDelete) {
    var nativeCommand = function (editor, command) {
      editor.getDoc().execCommand(command, false, null);
    };

    var paddEmptyBody = function (editor) {
      var dom = editor.dom;

      // Check if body is empty after the delete call if so then set the contents
      // to an empty string and move the caret to any block produced by that operation
      // this fixes the issue with root blocks not being properly produced after a delete call on IE
      var body = editor.getBody();

      if (dom.isEmpty(body)) {
        editor.setContent('');

        if (body.firstChild && dom.isBlock(body.firstChild)) {
          editor.selection.setCursorLocation(body.firstChild, 0);
        } else {
          editor.selection.setCursorLocation(body, 0);
        }
      }
    };

    var deleteCommand = function (editor) {
      if (CefDelete.backspaceDelete(editor, false)) {
        return;
      } else if (BoundaryDelete.backspaceDelete(editor, false)) {
        return;
      } else if (BlockBoundaryDelete.backspaceDelete(editor, false)) {
        return;
      } else if (BlockRangeDelete.backspaceDelete(editor, false)) {
        return;
      } else {
        nativeCommand(editor, 'Delete');
        paddEmptyBody(editor);
      }
    };

    var forwardDeleteCommand = function (editor) {
      if (CefDelete.backspaceDelete(editor, true)) {
        return;
      } else if (BoundaryDelete.backspaceDelete(editor, true)) {
        return;
      } else if (BlockBoundaryDelete.backspaceDelete(editor, true)) {
        return;
      } else if (BlockRangeDelete.backspaceDelete(editor, true)) {
        return;
      } else {
        nativeCommand(editor, 'ForwardDelete');
      }
    };

    return {
      deleteCommand: deleteCommand,
      forwardDeleteCommand: forwardDeleteCommand
    };
  }
);
/**
 * RangeNormalizer.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.dom.RangeNormalizer',
  [
    'tinymce.core.caret.CaretFinder',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.dom.NodeType'
  ],
  function (CaretFinder, CaretPosition, CaretUtils, NodeType) {
    var isTextBlock = function (elm) {
      return NodeType.isElement(elm) && /^(P|H[1-6]|DIV)$/.test(elm.nodeName);
    };

    var matchEndContainer = function (rng, predicate) {
      return predicate(rng.endContainer);
    };

    var createRange = function (sc, so, ec, eo) {
      var rng = document.createRange();
      rng.setStart(sc, so);
      rng.setEnd(ec, eo);
      return rng;
    };

    // If you tripple click a paragraph in this case:
    //   <blockquote><p>a</p></blockquote><p>b</p>
    // It would become this range in webkit:
    //   <blockquote><p>[a</p></blockquote><p>]b</p>
    // We would want it to be:
    //   <blockquote><p>[a]</p></blockquote><p>b</p>
    // Since it would otherwise produces spans out of thin air on insertContent for example.
    var normalizeBlockSelection = function (rng) {
      var startPos = CaretPosition.fromRangeStart(rng);
      var endPos = CaretPosition.fromRangeEnd(rng);
      var rootNode = rng.commonAncestorContainer;

      if (rng.collapsed === false && matchEndContainer(rng, isTextBlock) && rng.endOffset === 0) {
        return CaretFinder.fromPosition(false, rootNode, endPos)
          .map(function (newEndPos) {
            if (!CaretUtils.isInSameBlock(startPos, endPos, rootNode) && CaretUtils.isInSameBlock(startPos, newEndPos, rootNode)) {
              return createRange(startPos.container(), startPos.offset(), newEndPos.container(), newEndPos.offset());
            } else {
              return rng;
            }
          }).getOr(rng);
      } else {
        return rng;
      }
    };

    var normalize = function (rng) {
      return normalizeBlockSelection(rng);
    };

    return {
      normalize: normalize
    };
  }
);
/**
 * InsertList.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Handles inserts of lists into the editor instance.
 *
 * @class tinymce.InsertList
 * @private
 */
define(
  'tinymce.core.InsertList',
  [
    "tinymce.core.util.Tools",
    "tinymce.core.caret.CaretWalker",
    "tinymce.core.caret.CaretPosition"
  ],
  function (Tools, CaretWalker, CaretPosition) {
    var isListFragment = function (fragment) {
      var firstChild = fragment.firstChild;
      var lastChild = fragment.lastChild;

      // Skip meta since it's likely <meta><ul>..</ul>
      if (firstChild && firstChild.name === 'meta') {
        firstChild = firstChild.next;
      }

      // Skip mce_marker since it's likely <ul>..</ul><span id="mce_marker"></span>
      if (lastChild && lastChild.attr('id') === 'mce_marker') {
        lastChild = lastChild.prev;
      }

      if (!firstChild || firstChild !== lastChild) {
        return false;
      }

      return firstChild.name === 'ul' || firstChild.name === 'ol';
    };

    var cleanupDomFragment = function (domFragment) {
      var firstChild = domFragment.firstChild;
      var lastChild = domFragment.lastChild;

      // TODO: remove the meta tag from paste logic
      if (firstChild && firstChild.nodeName === 'META') {
        firstChild.parentNode.removeChild(firstChild);
      }

      if (lastChild && lastChild.id === 'mce_marker') {
        lastChild.parentNode.removeChild(lastChild);
      }

      return domFragment;
    };

    var toDomFragment = function (dom, serializer, fragment) {
      var html = serializer.serialize(fragment);
      var domFragment = dom.createFragment(html);

      return cleanupDomFragment(domFragment);
    };

    var listItems = function (elm) {
      return Tools.grep(elm.childNodes, function (child) {
        return child.nodeName === 'LI';
      });
    };

    var isEmpty = function (elm) {
      return !elm.firstChild;
    };

    var trimListItems = function (elms) {
      return elms.length > 0 && isEmpty(elms[elms.length - 1]) ? elms.slice(0, -1) : elms;
    };

    var getParentLi = function (dom, node) {
      var parentBlock = dom.getParent(node, dom.isBlock);
      return parentBlock && parentBlock.nodeName === 'LI' ? parentBlock : null;
    };

    var isParentBlockLi = function (dom, node) {
      return !!getParentLi(dom, node);
    };

    var getSplit = function (parentNode, rng) {
      var beforeRng = rng.cloneRange();
      var afterRng = rng.cloneRange();

      beforeRng.setStartBefore(parentNode);
      afterRng.setEndAfter(parentNode);

      return [
        beforeRng.cloneContents(),
        afterRng.cloneContents()
      ];
    };

    var findFirstIn = function (node, rootNode) {
      var caretPos = CaretPosition.before(node);
      var caretWalker = new CaretWalker(rootNode);
      var newCaretPos = caretWalker.next(caretPos);

      return newCaretPos ? newCaretPos.toRange() : null;
    };

    var findLastOf = function (node, rootNode) {
      var caretPos = CaretPosition.after(node);
      var caretWalker = new CaretWalker(rootNode);
      var newCaretPos = caretWalker.prev(caretPos);

      return newCaretPos ? newCaretPos.toRange() : null;
    };

    var insertMiddle = function (target, elms, rootNode, rng) {
      var parts = getSplit(target, rng);
      var parentElm = target.parentNode;

      parentElm.insertBefore(parts[0], target);
      Tools.each(elms, function (li) {
        parentElm.insertBefore(li, target);
      });
      parentElm.insertBefore(parts[1], target);
      parentElm.removeChild(target);

      return findLastOf(elms[elms.length - 1], rootNode);
    };

    var insertBefore = function (target, elms, rootNode) {
      var parentElm = target.parentNode;

      Tools.each(elms, function (elm) {
        parentElm.insertBefore(elm, target);
      });

      return findFirstIn(target, rootNode);
    };

    var insertAfter = function (target, elms, rootNode, dom) {
      dom.insertAfter(elms.reverse(), target);
      return findLastOf(elms[0], rootNode);
    };

    var insertAtCaret = function (serializer, dom, rng, fragment) {
      var domFragment = toDomFragment(dom, serializer, fragment);
      var liTarget = getParentLi(dom, rng.startContainer);
      var liElms = trimListItems(listItems(domFragment.firstChild));
      var BEGINNING = 1, END = 2;
      var rootNode = dom.getRoot();

      var isAt = function (location) {
        var caretPos = CaretPosition.fromRangeStart(rng);
        var caretWalker = new CaretWalker(dom.getRoot());
        var newPos = location === BEGINNING ? caretWalker.prev(caretPos) : caretWalker.next(caretPos);

        return newPos ? getParentLi(dom, newPos.getNode()) !== liTarget : true;
      };

      if (isAt(BEGINNING)) {
        return insertBefore(liTarget, liElms, rootNode);
      } else if (isAt(END)) {
        return insertAfter(liTarget, liElms, rootNode, dom);
      }

      return insertMiddle(liTarget, liElms, rootNode, rng);
    };

    return {
      isListFragment: isListFragment,
      insertAtCaret: insertAtCaret,
      isParentBlockLi: isParentBlockLi,
      trimListItems: trimListItems,
      listItems: listItems
    };
  }
);
/**
 * InsertContent.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Handles inserts of contents into the editor instance.
 *
 * @class tinymce.InsertContent
 * @private
 */
define(
  'tinymce.core.InsertContent',
  [
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretWalker',
    'tinymce.core.dom.ElementUtils',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeNormalizer',
    'tinymce.core.Env',
    'tinymce.core.html.Serializer',
    'tinymce.core.InsertList',
    'tinymce.core.util.Tools'
  ],
  function (CaretPosition, CaretWalker, ElementUtils, NodeType, RangeNormalizer, Env, Serializer, InsertList, Tools) {
    var isTableCell = NodeType.matchNodeNames('td th');

    var validInsertion = function (editor, value, parentNode) {
      // Should never insert content into bogus elements, since these can
      // be resize handles or similar
      if (parentNode.getAttribute('data-mce-bogus') === 'all') {
        parentNode.parentNode.insertBefore(editor.dom.createFragment(value), parentNode);
      } else {
        // Check if parent is empty or only has one BR element then set the innerHTML of that parent
        var node = parentNode.firstChild;
        var node2 = parentNode.lastChild;
        if (!node || (node === node2 && node.nodeName === 'BR')) {///
          editor.dom.setHTML(parentNode, value);
        } else {
          editor.selection.setContent(value);
        }
      }
    };

    var insertHtmlAtCaret = function (editor, value, details) {
      var parser, serializer, parentNode, rootNode, fragment, args;
      var marker, rng, node, node2, bookmarkHtml, merge;
      var textInlineElements = editor.schema.getTextInlineElements();
      var selection = editor.selection, dom = editor.dom;

      function trimOrPaddLeftRight(html) {
        var rng, container, offset;

        rng = selection.getRng(true);
        container = rng.startContainer;
        offset = rng.startOffset;

        function hasSiblingText(siblingName) {
          return container[siblingName] && container[siblingName].nodeType == 3;
        }

        if (container.nodeType == 3) {
          if (offset > 0) {
            html = html.replace(/^&nbsp;/, ' ');
          } else if (!hasSiblingText('previousSibling')) {
            html = html.replace(/^ /, '&nbsp;');
          }

          if (offset < container.length) {
            html = html.replace(/&nbsp;(<br>|)$/, ' ');
          } else if (!hasSiblingText('nextSibling')) {
            html = html.replace(/(&nbsp;| )(<br>|)$/, '&nbsp;');
          }
        }

        return html;
      }

      // Removes &nbsp; from a [b] c -> a &nbsp;c -> a c
      function trimNbspAfterDeleteAndPaddValue() {
        var rng, container, offset;

        rng = selection.getRng(true);
        container = rng.startContainer;
        offset = rng.startOffset;

        if (container.nodeType == 3 && rng.collapsed) {
          if (container.data[offset] === '\u00a0') {
            container.deleteData(offset, 1);

            if (!/[\u00a0| ]$/.test(value)) {
              value += ' ';
            }
          } else if (container.data[offset - 1] === '\u00a0') {
            container.deleteData(offset - 1, 1);

            if (!/[\u00a0| ]$/.test(value)) {
              value = ' ' + value;
            }
          }
        }
      }

      function reduceInlineTextElements() {
        if (merge) {
          var root = editor.getBody(), elementUtils = new ElementUtils(dom);

          Tools.each(dom.select('*[data-mce-fragment]'), function (node) {
            for (var testNode = node.parentNode; testNode && testNode != root; testNode = testNode.parentNode) {
              if (textInlineElements[node.nodeName.toLowerCase()] && elementUtils.compare(testNode, node)) {
                dom.remove(node, true);
              }
            }
          });
        }
      }

      function markFragmentElements(fragment) {
        var node = fragment;

        while ((node = node.walk())) {
          if (node.type === 1) {
            node.attr('data-mce-fragment', '1');
          }
        }
      }

      function umarkFragmentElements(elm) {
        Tools.each(elm.getElementsByTagName('*'), function (elm) {
          elm.removeAttribute('data-mce-fragment');
        });
      }

      function isPartOfFragment(node) {
        return !!node.getAttribute('data-mce-fragment');
      }

      function canHaveChildren(node) {
        return node && !editor.schema.getShortEndedElements()[node.nodeName];
      }

      function moveSelectionToMarker(marker) {
        var parentEditableFalseElm, parentBlock, nextRng;

        function getContentEditableFalseParent(node) {
          var root = editor.getBody();

          for (; node && node !== root; node = node.parentNode) {
            if (editor.dom.getContentEditable(node) === 'false') {
              return node;
            }
          }

          return null;
        }

        if (!marker) {
          return;
        }

        selection.scrollIntoView(marker);

        // If marker is in cE=false then move selection to that element instead
        parentEditableFalseElm = getContentEditableFalseParent(marker);
        if (parentEditableFalseElm) {
          dom.remove(marker);
          selection.select(parentEditableFalseElm);
          return;
        }

        // Move selection before marker and remove it
        rng = dom.createRng();

        // If previous sibling is a text node set the selection to the end of that node
        node = marker.previousSibling;
        if (node && node.nodeType == 3) {
          rng.setStart(node, node.nodeValue.length);

          // TODO: Why can't we normalize on IE
          if (!Env.ie) {
            node2 = marker.nextSibling;
            if (node2 && node2.nodeType == 3) {
              node.appendData(node2.data);
              node2.parentNode.removeChild(node2);
            }
          }
        } else {
          // If the previous sibling isn't a text node or doesn't exist set the selection before the marker node
          rng.setStartBefore(marker);
          rng.setEndBefore(marker);
        }

        function findNextCaretRng(rng) {
          var caretPos = CaretPosition.fromRangeStart(rng);
          var caretWalker = new CaretWalker(editor.getBody());

          caretPos = caretWalker.next(caretPos);
          if (caretPos) {
            return caretPos.toRange();
          }
        }

        // Remove the marker node and set the new range
        parentBlock = dom.getParent(marker, dom.isBlock);
        dom.remove(marker);

        if (parentBlock && dom.isEmpty(parentBlock)) {
          editor.$(parentBlock).empty();

          rng.setStart(parentBlock, 0);
          rng.setEnd(parentBlock, 0);

          if (!isTableCell(parentBlock) && !isPartOfFragment(parentBlock) && (nextRng = findNextCaretRng(rng))) {
            rng = nextRng;
            dom.remove(parentBlock);
          } else {
            dom.add(parentBlock, dom.create('br', { 'data-mce-bogus': '1' }));
          }
        }

        selection.setRng(rng);
      }

      // Check for whitespace before/after value
      if (/^ | $/.test(value)) {
        value = trimOrPaddLeftRight(value);
      }

      // Setup parser and serializer
      parser = editor.parser;
      merge = details.merge;

      serializer = new Serializer({
        validate: editor.settings.validate
      }, editor.schema);
      bookmarkHtml = '<span id="mce_marker" data-mce-type="bookmark">&#xFEFF;&#x200B;</span>';

      // Run beforeSetContent handlers on the HTML to be inserted
      args = { content: value, format: 'html', selection: true };
      editor.fire('BeforeSetContent', args);
      value = args.content;

      // Add caret at end of contents if it's missing
      if (value.indexOf('{$caret}') == -1) {
        value += '{$caret}';
      }

      // Replace the caret marker with a span bookmark element
      value = value.replace(/\{\$caret\}/, bookmarkHtml);

      // If selection is at <body>|<p></p> then move it into <body><p>|</p>
      rng = selection.getRng();
      var caretElement = rng.startContainer || (rng.parentElement ? rng.parentElement() : null);
      var body = editor.getBody();
      if (caretElement === body && selection.isCollapsed()) {
        if (dom.isBlock(body.firstChild) && canHaveChildren(body.firstChild) && dom.isEmpty(body.firstChild)) {
          rng = dom.createRng();
          rng.setStart(body.firstChild, 0);
          rng.setEnd(body.firstChild, 0);
          selection.setRng(rng);
        }
      }

      // Insert node maker where we will insert the new HTML and get it's parent
      if (!selection.isCollapsed()) {
        // Fix for #2595 seems that delete removes one extra character on
        // WebKit for some odd reason if you double click select a word
        editor.selection.setRng(RangeNormalizer.normalize(editor.selection.getRng()));
        editor.getDoc().execCommand('Delete', false, null);
        trimNbspAfterDeleteAndPaddValue();
      }

      parentNode = selection.getNode();

      // Parse the fragment within the context of the parent node
      var parserArgs = { context: parentNode.nodeName.toLowerCase(), data: details.data };
      fragment = parser.parse(value, parserArgs);

      // Custom handling of lists
      if (details.paste === true && InsertList.isListFragment(fragment) && InsertList.isParentBlockLi(dom, parentNode)) {
        rng = InsertList.insertAtCaret(serializer, dom, editor.selection.getRng(true), fragment);
        editor.selection.setRng(rng);
        editor.fire('SetContent', args);
        return;
      }

      markFragmentElements(fragment);

      // Move the caret to a more suitable location
      node = fragment.lastChild;
      if (node.attr('id') == 'mce_marker') {
        marker = node;

        for (node = node.prev; node; node = node.walk(true)) {
          if (node.type == 3 || !dom.isBlock(node.name)) {
            if (editor.schema.isValidChild(node.parent.name, 'span')) {
              node.parent.insert(marker, node, node.name === 'br');
            }
            break;
          }
        }
      }

      editor._selectionOverrides.showBlockCaretContainer(parentNode);

      // If parser says valid we can insert the contents into that parent
      if (!parserArgs.invalid) {
        value = serializer.serialize(fragment);
        validInsertion(editor, value, parentNode);
      } else {
        // If the fragment was invalid within that context then we need
        // to parse and process the parent it's inserted into

        // Insert bookmark node and get the parent
        selection.setContent(bookmarkHtml);
        parentNode = selection.getNode();
        rootNode = editor.getBody();

        // Opera will return the document node when selection is in root
        if (parentNode.nodeType == 9) {
          parentNode = node = rootNode;
        } else {
          node = parentNode;
        }

        // Find the ancestor just before the root element
        while (node !== rootNode) {
          parentNode = node;
          node = node.parentNode;
        }

        // Get the outer/inner HTML depending on if we are in the root and parser and serialize that
        value = parentNode == rootNode ? rootNode.innerHTML : dom.getOuterHTML(parentNode);
        value = serializer.serialize(
          parser.parse(
            // Need to replace by using a function since $ in the contents would otherwise be a problem
            value.replace(/<span (id="mce_marker"|id=mce_marker).+?<\/span>/i, function () {
              return serializer.serialize(fragment);
            })
          )
        );

        // Set the inner/outer HTML depending on if we are in the root or not
        if (parentNode == rootNode) {
          dom.setHTML(rootNode, value);
        } else {
          dom.setOuterHTML(parentNode, value);
        }
      }

      reduceInlineTextElements();
      moveSelectionToMarker(dom.get('mce_marker'));
      umarkFragmentElements(editor.getBody());
      editor.fire('SetContent', args);
      editor.addVisual();
    };

    var processValue = function (value) {
      var details;

      if (typeof value !== 'string') {
        details = Tools.extend({
          paste: value.paste,
          data: {
            paste: value.paste
          }
        }, value);

        return {
          content: value.content,
          details: details
        };
      }

      return {
        content: value,
        details: {}
      };
    };

    var insertAtCaret = function (editor, value) {
      var result = processValue(value);
      insertHtmlAtCaret(editor, result.content, result.details);
    };

    return {
      insertAtCaret: insertAtCaret
    };
  }
);
/**
 * EditorCommands.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class enables you to add custom editor commands and it contains
 * overrides for native browser commands to address various bugs and issues.
 *
 * @class tinymce.EditorCommands
 */
define(
  'tinymce.core.EditorCommands',
  [
    'tinymce.core.delete.DeleteCommands',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.dom.TreeWalker',
    'tinymce.core.Env',
    'tinymce.core.InsertContent',
    'tinymce.core.util.Tools'
  ],
  function (DeleteCommands, NodeType, RangeUtils, TreeWalker, Env, InsertContent, Tools) {
    // Added for compression purposes
    var each = Tools.each, extend = Tools.extend;
    var map = Tools.map, inArray = Tools.inArray, explode = Tools.explode;
    var isOldIE = Env.ie && Env.ie < 11;
    var TRUE = true, FALSE = false;

    return function (editor) {
      var dom, selection, formatter,
        commands = { state: {}, exec: {}, value: {} },
        settings = editor.settings,
        bookmark;

      editor.on('PreInit', function () {
        dom = editor.dom;
        selection = editor.selection;
        settings = editor.settings;
        formatter = editor.formatter;
      });

      /**
       * Executes the specified command.
       *
       * @method execCommand
       * @param {String} command Command to execute.
       * @param {Boolean} ui Optional user interface state.
       * @param {Object} value Optional value for command.
       * @param {Object} args Optional extra arguments to the execCommand.
       * @return {Boolean} true/false if the command was found or not.
       */
      function execCommand(command, ui, value, args) {
        var func, customCommand, state = 0;

        if (editor.removed) {
          return;
        }

        if (!/^(mceAddUndoLevel|mceEndUndoLevel|mceBeginUndoLevel|mceRepaint)$/.test(command) && (!args || !args.skip_focus)) {
          editor.focus();
        }

        args = editor.fire('BeforeExecCommand', { command: command, ui: ui, value: value });
        if (args.isDefaultPrevented()) {
          return false;
        }

        customCommand = command.toLowerCase();
        if ((func = commands.exec[customCommand])) {
          func(customCommand, ui, value);
          editor.fire('ExecCommand', { command: command, ui: ui, value: value });
          return true;
        }

        // Plugin commands
        each(editor.plugins, function (p) {
          if (p.execCommand && p.execCommand(command, ui, value)) {
            editor.fire('ExecCommand', { command: command, ui: ui, value: value });
            state = true;
            return false;
          }
        });

        if (state) {
          return state;
        }

        // Theme commands
        if (editor.theme && editor.theme.execCommand && editor.theme.execCommand(command, ui, value)) {
          editor.fire('ExecCommand', { command: command, ui: ui, value: value });
          return true;
        }

        // Browser commands
        try {
          state = editor.getDoc().execCommand(command, ui, value);
        } catch (ex) {
          // Ignore old IE errors
        }

        if (state) {
          editor.fire('ExecCommand', { command: command, ui: ui, value: value });
          return true;
        }

        return false;
      }

      /**
       * Queries the current state for a command for example if the current selection is "bold".
       *
       * @method queryCommandState
       * @param {String} command Command to check the state of.
       * @return {Boolean/Number} true/false if the selected contents is bold or not, -1 if it's not found.
       */
      function queryCommandState(command) {
        var func;

        if (editor.quirks.isHidden() || editor.removed) {
          return;
        }

        command = command.toLowerCase();
        if ((func = commands.state[command])) {
          return func(command);
        }

        // Browser commands
        try {
          return editor.getDoc().queryCommandState(command);
        } catch (ex) {
          // Fails sometimes see bug: 1896577
        }

        return false;
      }

      /**
       * Queries the command value for example the current fontsize.
       *
       * @method queryCommandValue
       * @param {String} command Command to check the value of.
       * @return {Object} Command value of false if it's not found.
       */
      function queryCommandValue(command) {
        var func;

        if (editor.quirks.isHidden() || editor.removed) {
          return;
        }

        command = command.toLowerCase();
        if ((func = commands.value[command])) {
          return func(command);
        }

        // Browser commands
        try {
          return editor.getDoc().queryCommandValue(command);
        } catch (ex) {
          // Fails sometimes see bug: 1896577
        }
      }

      /**
       * Adds commands to the command collection.
       *
       * @method addCommands
       * @param {Object} commandList Name/value collection with commands to add, the names can also be comma separated.
       * @param {String} type Optional type to add, defaults to exec. Can be value or state as well.
       */
      function addCommands(commandList, type) {
        type = type || 'exec';

        each(commandList, function (callback, command) {
          each(command.toLowerCase().split(','), function (command) {
            commands[type][command] = callback;
          });
        });
      }

      function addCommand(command, callback, scope) {
        command = command.toLowerCase();
        commands.exec[command] = function (command, ui, value, args) {
          return callback.call(scope || editor, ui, value, args);
        };
      }

      /**
       * Returns true/false if the command is supported or not.
       *
       * @method queryCommandSupported
       * @param {String} command Command that we check support for.
       * @return {Boolean} true/false if the command is supported or not.
       */
      function queryCommandSupported(command) {
        command = command.toLowerCase();

        if (commands.exec[command]) {
          return true;
        }

        // Browser commands
        try {
          return editor.getDoc().queryCommandSupported(command);
        } catch (ex) {
          // Fails sometimes see bug: 1896577
        }

        return false;
      }

      function addQueryStateHandler(command, callback, scope) {
        command = command.toLowerCase();
        commands.state[command] = function () {
          return callback.call(scope || editor);
        };
      }

      function addQueryValueHandler(command, callback, scope) {
        command = command.toLowerCase();
        commands.value[command] = function () {
          return callback.call(scope || editor);
        };
      }

      function hasCustomCommand(command) {
        command = command.toLowerCase();
        return !!commands.exec[command];
      }

      // Expose public methods
      extend(this, {
        execCommand: execCommand,
        queryCommandState: queryCommandState,
        queryCommandValue: queryCommandValue,
        queryCommandSupported: queryCommandSupported,
        addCommands: addCommands,
        addCommand: addCommand,
        addQueryStateHandler: addQueryStateHandler,
        addQueryValueHandler: addQueryValueHandler,
        hasCustomCommand: hasCustomCommand
      });

      // Private methods

      function execNativeCommand(command, ui, value) {
        if (ui === undefined) {
          ui = FALSE;
        }

        if (value === undefined) {
          value = null;
        }

        return editor.getDoc().execCommand(command, ui, value);
      }

      function isFormatMatch(name) {
        return formatter.match(name);
      }

      function toggleFormat(name, value) {
        formatter.toggle(name, value ? { value: value } : undefined);
        editor.nodeChanged();
      }

      function storeSelection(type) {
        bookmark = selection.getBookmark(type);
      }

      function restoreSelection() {
        selection.moveToBookmark(bookmark);
      }

      // Add execCommand overrides
      addCommands({
        // Ignore these, added for compatibility
        'mceResetDesignMode,mceBeginUndoLevel': function () { },

        // Add undo manager logic
        'mceEndUndoLevel,mceAddUndoLevel': function () {
          editor.undoManager.add();
        },

        'Cut,Copy,Paste': function (command) {
          var doc = editor.getDoc(), failed;

          // Try executing the native command
          try {
            execNativeCommand(command);
          } catch (ex) {
            // Command failed
            failed = TRUE;
          }

          // Chrome reports the paste command as supported however older IE:s will return false for cut/paste
          if (command === 'paste' && !doc.queryCommandEnabled(command)) {
            failed = true;
          }

          // Present alert message about clipboard access not being available
          if (failed || !doc.queryCommandSupported(command)) {
            var msg = editor.translate(
              "Your browser doesn't support direct access to the clipboard. " +
              "Please use the Ctrl+X/C/V keyboard shortcuts instead."
            );

            if (Env.mac) {
              msg = msg.replace(/Ctrl\+/g, '\u2318+');
            }

            editor.notificationManager.open({ text: msg, type: 'error' });
          }
        },

        // Override unlink command
        unlink: function () {
          if (selection.isCollapsed()) {
            var elm = editor.dom.getParent(editor.selection.getStart(), 'a');
            if (elm) {
              editor.dom.remove(elm, true);
            }

            return;
          }

          formatter.remove("link");
        },

        // Override justify commands to use the text formatter engine
        'JustifyLeft,JustifyCenter,JustifyRight,JustifyFull,JustifyNone': function (command) {
          var align = command.substring(7);

          if (align == 'full') {
            align = 'justify';
          }

          // Remove all other alignments first
          each('left,center,right,justify'.split(','), function (name) {
            if (align != name) {
              formatter.remove('align' + name);
            }
          });

          if (align != 'none') {
            toggleFormat('align' + align);
          }
        },

        // Override list commands to fix WebKit bug
        'InsertUnorderedList,InsertOrderedList': function (command) {
          var listElm, listParent;

          execNativeCommand(command);

          // WebKit produces lists within block elements so we need to split them
          // we will replace the native list creation logic to custom logic later on
          // TODO: Remove this when the list creation logic is removed
          listElm = dom.getParent(selection.getNode(), 'ol,ul');
          if (listElm) {
            listParent = listElm.parentNode;

            // If list is within a text block then split that block
            if (/^(H[1-6]|P|ADDRESS|PRE)$/.test(listParent.nodeName)) {
              storeSelection();
              dom.split(listParent, listElm);
              restoreSelection();
            }
          }
        },

        // Override commands to use the text formatter engine
        'Bold,Italic,Underline,Strikethrough,Superscript,Subscript': function (command) {
          toggleFormat(command);
        },

        // Override commands to use the text formatter engine
        'ForeColor,HiliteColor,FontName': function (command, ui, value) {
          toggleFormat(command, value);
        },

        FontSize: function (command, ui, value) {
          var fontClasses, fontSizes;

          // Convert font size 1-7 to styles
          if (value >= 1 && value <= 7) {
            fontSizes = explode(settings.font_size_style_values);
            fontClasses = explode(settings.font_size_classes);

            if (fontClasses) {
              value = fontClasses[value - 1] || value;
            } else {
              value = fontSizes[value - 1] || value;
            }
          }

          toggleFormat(command, value);
        },

        RemoveFormat: function (command) {
          formatter.remove(command);
        },

        mceBlockQuote: function () {
          toggleFormat('blockquote');
        },

        FormatBlock: function (command, ui, value) {
          return toggleFormat(value || 'p');
        },

        mceCleanup: function () {
          var bookmark = selection.getBookmark();

          editor.setContent(editor.getContent({ cleanup: TRUE }), { cleanup: TRUE });

          selection.moveToBookmark(bookmark);
        },

        mceRemoveNode: function (command, ui, value) {
          var node = value || selection.getNode();

          // Make sure that the body node isn't removed
          if (node != editor.getBody()) {
            storeSelection();
            editor.dom.remove(node, TRUE);
            restoreSelection();
          }
        },

        mceSelectNodeDepth: function (command, ui, value) {
          var counter = 0;

          dom.getParent(selection.getNode(), function (node) {
            if (node.nodeType == 1 && counter++ == value) {
              selection.select(node);
              return FALSE;
            }
          }, editor.getBody());
        },

        mceSelectNode: function (command, ui, value) {
          selection.select(value);
        },

        mceInsertContent: function (command, ui, value) {
          InsertContent.insertAtCaret(editor, value);
        },

        mceInsertRawHTML: function (command, ui, value) {
          selection.setContent('tiny_mce_marker');
          editor.setContent(
            editor.getContent().replace(/tiny_mce_marker/g, function () {
              return value;
            })
          );
        },

        mceToggleFormat: function (command, ui, value) {
          toggleFormat(value);
        },

        mceSetContent: function (command, ui, value) {
          editor.setContent(value);
        },

        'Indent,Outdent': function (command) {
          var intentValue, indentUnit, value;

          // Setup indent level
          intentValue = settings.indentation;
          indentUnit = /[a-z%]+$/i.exec(intentValue);
          intentValue = parseInt(intentValue, 10);

          if (!queryCommandState('InsertUnorderedList') && !queryCommandState('InsertOrderedList')) {
            // If forced_root_blocks is set to false we don't have a block to indent so lets create a div
            if (!settings.forced_root_block && !dom.getParent(selection.getNode(), dom.isBlock)) {
              formatter.apply('div');
            }

            each(selection.getSelectedBlocks(), function (element) {
              if (dom.getContentEditable(element) === "false") {
                return;
              }

              if (element.nodeName !== "LI") {
                var indentStyleName = editor.getParam('indent_use_margin', false) ? 'margin' : 'padding';
                indentStyleName = element.nodeName === 'TABLE' ? 'margin' : indentStyleName;
                indentStyleName += dom.getStyle(element, 'direction', true) == 'rtl' ? 'Right' : 'Left';

                if (command == 'outdent') {
                  value = Math.max(0, parseInt(element.style[indentStyleName] || 0, 10) - intentValue);
                  dom.setStyle(element, indentStyleName, value ? value + indentUnit : '');
                } else {
                  value = (parseInt(element.style[indentStyleName] || 0, 10) + intentValue) + indentUnit;
                  dom.setStyle(element, indentStyleName, value);
                }
              }
            });
          } else {
            execNativeCommand(command);
          }
        },

        mceRepaint: function () {
        },

        InsertHorizontalRule: function () {
          editor.execCommand('mceInsertContent', false, '<hr />');
        },

        mceToggleVisualAid: function () {
          editor.hasVisual = !editor.hasVisual;
          editor.addVisual();
        },

        mceReplaceContent: function (command, ui, value) {
          editor.execCommand('mceInsertContent', false, value.replace(/\{\$selection\}/g, selection.getContent({ format: 'text' })));
        },

        mceInsertLink: function (command, ui, value) {
          var anchor;

          if (typeof value == 'string') {
            value = { href: value };
          }

          anchor = dom.getParent(selection.getNode(), 'a');

          // Spaces are never valid in URLs and it's a very common mistake for people to make so we fix it here.
          value.href = value.href.replace(' ', '%20');

          // Remove existing links if there could be child links or that the href isn't specified
          if (!anchor || !value.href) {
            formatter.remove('link');
          }

          // Apply new link to selection
          if (value.href) {
            formatter.apply('link', value, anchor);
          }
        },

        selectAll: function () {
          var root = dom.getRoot(), rng;

          if (selection.getRng().setStart) {
            var editingHost = dom.getParent(selection.getStart(), NodeType.isContentEditableTrue);
            if (editingHost) {
              rng = dom.createRng();
              rng.selectNodeContents(editingHost);
              selection.setRng(rng);
            }
          } else {
            // IE will render it's own root level block elements and sometimes
            // even put font elements in them when the user starts typing. So we need to
            // move the selection to a more suitable element from this:
            // <body>|<p></p></body> to this: <body><p>|</p></body>
            rng = selection.getRng();
            if (!rng.item) {
              rng.moveToElementText(root);
              rng.select();
            }
          }
        },

        "delete": function () {
          DeleteCommands.deleteCommand(editor);
        },

        "forwardDelete": function () {
          DeleteCommands.forwardDeleteCommand(editor);
        },

        mceNewDocument: function () {
          editor.setContent('');
        },

        InsertLineBreak: function (command, ui, value) {
          // We load the current event in from EnterKey.js when appropriate to heed
          // certain event-specific variations such as ctrl-enter in a list
          var evt = value;
          var brElm, extraBr, marker;
          var rng = selection.getRng(true);
          new RangeUtils(dom).normalize(rng);

          var offset = rng.startOffset;
          var container = rng.startContainer;

          // Resolve node index
          if (container.nodeType == 1 && container.hasChildNodes()) {
            var isAfterLastNodeInContainer = offset > container.childNodes.length - 1;

            container = container.childNodes[Math.min(offset, container.childNodes.length - 1)] || container;
            if (isAfterLastNodeInContainer && container.nodeType == 3) {
              offset = container.nodeValue.length;
            } else {
              offset = 0;
            }
          }

          var parentBlock = dom.getParent(container, dom.isBlock);
          var parentBlockName = parentBlock ? parentBlock.nodeName.toUpperCase() : ''; // IE < 9 & HTML5
          var containerBlock = parentBlock ? dom.getParent(parentBlock.parentNode, dom.isBlock) : null;
          var containerBlockName = containerBlock ? containerBlock.nodeName.toUpperCase() : ''; // IE < 9 & HTML5

          // Enter inside block contained within a LI then split or insert before/after LI
          var isControlKey = evt && evt.ctrlKey;
          if (containerBlockName == 'LI' && !isControlKey) {
            parentBlock = containerBlock;
            parentBlockName = containerBlockName;
          }

          // Walks the parent block to the right and look for BR elements
          function hasRightSideContent() {
            var walker = new TreeWalker(container, parentBlock), node;
            var nonEmptyElementsMap = editor.schema.getNonEmptyElements();

            while ((node = walker.next())) {
              if (nonEmptyElementsMap[node.nodeName.toLowerCase()] || node.length > 0) {
                return true;
              }
            }
          }

          if (container && container.nodeType == 3 && offset >= container.nodeValue.length) {
            // Insert extra BR element at the end block elements
            if (!isOldIE && !hasRightSideContent()) {
              brElm = dom.create('br');
              rng.insertNode(brElm);
              rng.setStartAfter(brElm);
              rng.setEndAfter(brElm);
              extraBr = true;
            }
          }

          brElm = dom.create('br');
          rng.insertNode(brElm);

          // Rendering modes below IE8 doesn't display BR elements in PRE unless we have a \n before it
          var documentMode = dom.doc.documentMode;
          if (isOldIE && parentBlockName == 'PRE' && (!documentMode || documentMode < 8)) {
            brElm.parentNode.insertBefore(dom.doc.createTextNode('\r'), brElm);
          }

          // Insert temp marker and scroll to that
          marker = dom.create('span', {}, '&nbsp;');
          brElm.parentNode.insertBefore(marker, brElm);
          selection.scrollIntoView(marker);
          dom.remove(marker);

          if (!extraBr) {
            rng.setStartAfter(brElm);
            rng.setEndAfter(brElm);
          } else {
            rng.setStartBefore(brElm);
            rng.setEndBefore(brElm);
          }

          selection.setRng(rng);
          editor.undoManager.add();

          return TRUE;
        }
      });

      // Add queryCommandState overrides
      addCommands({
        // Override justify commands
        'JustifyLeft,JustifyCenter,JustifyRight,JustifyFull': function (command) {
          var name = 'align' + command.substring(7);
          var nodes = selection.isCollapsed() ? [dom.getParent(selection.getNode(), dom.isBlock)] : selection.getSelectedBlocks();
          var matches = map(nodes, function (node) {
            return !!formatter.matchNode(node, name);
          });
          return inArray(matches, TRUE) !== -1;
        },

        'Bold,Italic,Underline,Strikethrough,Superscript,Subscript': function (command) {
          return isFormatMatch(command);
        },

        mceBlockQuote: function () {
          return isFormatMatch('blockquote');
        },

        Outdent: function () {
          var node;

          if (settings.inline_styles) {
            if ((node = dom.getParent(selection.getStart(), dom.isBlock)) && parseInt(node.style.paddingLeft, 10) > 0) {
              return TRUE;
            }

            if ((node = dom.getParent(selection.getEnd(), dom.isBlock)) && parseInt(node.style.paddingLeft, 10) > 0) {
              return TRUE;
            }
          }

          return (
            queryCommandState('InsertUnorderedList') ||
            queryCommandState('InsertOrderedList') ||
            (!settings.inline_styles && !!dom.getParent(selection.getNode(), 'BLOCKQUOTE'))
          );
        },

        'InsertUnorderedList,InsertOrderedList': function (command) {
          var list = dom.getParent(selection.getNode(), 'ul,ol');

          return list &&
            (
              command === 'insertunorderedlist' && list.tagName === 'UL' ||
              command === 'insertorderedlist' && list.tagName === 'OL'
            );
        }
      }, 'state');

      // Add queryCommandValue overrides
      addCommands({
        'FontSize,FontName': function (command) {
          var value = 0, parent;

          if ((parent = dom.getParent(selection.getNode(), 'span'))) {
            if (command == 'fontsize') {
              value = parent.style.fontSize;
            } else {
              value = parent.style.fontFamily.replace(/, /g, ',').replace(/[\'\"]/g, '').toLowerCase();
            }
          }

          return value;
        }
      }, 'value');

      // Add undo manager logic
      addCommands({
        Undo: function () {
          editor.undoManager.undo();
        },

        Redo: function () {
          editor.undoManager.redo();
        }
      });
    };
  }
);

/**
 * URI.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles parsing, modification and serialization of URI/URL strings.
 * @class tinymce.util.URI
 */
define(
  'tinymce.core.util.URI',
  [
    'global!document',
    'tinymce.core.util.Tools'
  ],
  function (document, Tools) {
    var each = Tools.each, trim = Tools.trim;
    var queryParts = "source protocol authority userInfo user password host port relative path directory file query anchor".split(' ');
    var DEFAULT_PORTS = {
      'ftp': 21,
      'http': 80,
      'https': 443,
      'mailto': 25
    };

    /**
     * Constructs a new URI instance.
     *
     * @constructor
     * @method URI
     * @param {String} url URI string to parse.
     * @param {Object} settings Optional settings object.
     */
    function URI(url, settings) {
      var self = this, baseUri, baseUrl;

      url = trim(url);
      settings = self.settings = settings || {};
      baseUri = settings.base_uri;

      // Strange app protocol that isn't http/https or local anchor
      // For example: mailto,skype,tel etc.
      if (/^([\w\-]+):([^\/]{2})/i.test(url) || /^\s*#/.test(url)) {
        self.source = url;
        return;
      }

      var isProtocolRelative = url.indexOf('//') === 0;

      // Absolute path with no host, fake host and protocol
      if (url.indexOf('/') === 0 && !isProtocolRelative) {
        url = (baseUri ? baseUri.protocol || 'http' : 'http') + '://mce_host' + url;
      }

      // Relative path http:// or protocol relative //path
      if (!/^[\w\-]*:?\/\//.test(url)) {
        baseUrl = settings.base_uri ? settings.base_uri.path : new URI(document.location.href).directory;
        if (settings.base_uri.protocol === "") {
          url = '//mce_host' + self.toAbsPath(baseUrl, url);
        } else {
          url = /([^#?]*)([#?]?.*)/.exec(url);
          url = ((baseUri && baseUri.protocol) || 'http') + '://mce_host' + self.toAbsPath(baseUrl, url[1]) + url[2];
        }
      }

      // Parse URL (Credits goes to Steave, http://blog.stevenlevithan.com/archives/parseuri)
      url = url.replace(/@@/g, '(mce_at)'); // Zope 3 workaround, they use @@something

      /*jshint maxlen: 255 */
      /*eslint max-len: 0 */
      url = /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@\/]*):?([^:@\/]*))?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/.exec(url);

      each(queryParts, function (v, i) {
        var part = url[i];

        // Zope 3 workaround, they use @@something
        if (part) {
          part = part.replace(/\(mce_at\)/g, '@@');
        }

        self[v] = part;
      });

      if (baseUri) {
        if (!self.protocol) {
          self.protocol = baseUri.protocol;
        }

        if (!self.userInfo) {
          self.userInfo = baseUri.userInfo;
        }

        if (!self.port && self.host === 'mce_host') {
          self.port = baseUri.port;
        }

        if (!self.host || self.host === 'mce_host') {
          self.host = baseUri.host;
        }

        self.source = '';
      }

      if (isProtocolRelative) {
        self.protocol = '';
      }

      //t.path = t.path || '/';
    }

    URI.prototype = {
      /**
       * Sets the internal path part of the URI.
       *
       * @method setPath
       * @param {string} path Path string to set.
       */
      setPath: function (path) {
        var self = this;

        path = /^(.*?)\/?(\w+)?$/.exec(path);

        // Update path parts
        self.path = path[0];
        self.directory = path[1];
        self.file = path[2];

        // Rebuild source
        self.source = '';
        self.getURI();
      },

      /**
       * Converts the specified URI into a relative URI based on the current URI instance location.
       *
       * @method toRelative
       * @param {String} uri URI to convert into a relative path/URI.
       * @return {String} Relative URI from the point specified in the current URI instance.
       * @example
       * // Converts an absolute URL to an relative URL url will be somedir/somefile.htm
       * var url = new tinymce.util.URI('http://www.site.com/dir/').toRelative('http://www.site.com/dir/somedir/somefile.htm');
       */
      toRelative: function (uri) {
        var self = this, output;

        if (uri === "./") {
          return uri;
        }

        uri = new URI(uri, { base_uri: self });

        // Not on same domain/port or protocol
        if ((uri.host != 'mce_host' && self.host != uri.host && uri.host) || self.port != uri.port ||
          (self.protocol != uri.protocol && uri.protocol !== "")) {
          return uri.getURI();
        }

        var tu = self.getURI(), uu = uri.getURI();

        // Allow usage of the base_uri when relative_urls = true
        if (tu == uu || (tu.charAt(tu.length - 1) == "/" && tu.substr(0, tu.length - 1) == uu)) {
          return tu;
        }

        output = self.toRelPath(self.path, uri.path);

        // Add query
        if (uri.query) {
          output += '?' + uri.query;
        }

        // Add anchor
        if (uri.anchor) {
          output += '#' + uri.anchor;
        }

        return output;
      },

      /**
       * Converts the specified URI into a absolute URI based on the current URI instance location.
       *
       * @method toAbsolute
       * @param {String} uri URI to convert into a relative path/URI.
       * @param {Boolean} noHost No host and protocol prefix.
       * @return {String} Absolute URI from the point specified in the current URI instance.
       * @example
       * // Converts an relative URL to an absolute URL url will be http://www.site.com/dir/somedir/somefile.htm
       * var url = new tinymce.util.URI('http://www.site.com/dir/').toAbsolute('somedir/somefile.htm');
       */
      toAbsolute: function (uri, noHost) {
        uri = new URI(uri, { base_uri: this });

        return uri.getURI(noHost && this.isSameOrigin(uri));
      },

      /**
       * Determine whether the given URI has the same origin as this URI.  Based on RFC-6454.
       * Supports default ports for protocols listed in DEFAULT_PORTS.  Unsupported protocols will fail safe: they
       * won't match, if the port specifications differ.
       *
       * @method isSameOrigin
       * @param {tinymce.util.URI} uri Uri instance to compare.
       * @returns {Boolean} True if the origins are the same.
       */
      isSameOrigin: function (uri) {
        if (this.host == uri.host && this.protocol == uri.protocol) {
          if (this.port == uri.port) {
            return true;
          }

          var defaultPort = DEFAULT_PORTS[this.protocol];
          if (defaultPort && ((this.port || defaultPort) == (uri.port || defaultPort))) {
            return true;
          }
        }

        return false;
      },

      /**
       * Converts a absolute path into a relative path.
       *
       * @method toRelPath
       * @param {String} base Base point to convert the path from.
       * @param {String} path Absolute path to convert into a relative path.
       */
      toRelPath: function (base, path) {
        var items, breakPoint = 0, out = '', i, l;

        // Split the paths
        base = base.substring(0, base.lastIndexOf('/'));
        base = base.split('/');
        items = path.split('/');

        if (base.length >= items.length) {
          for (i = 0, l = base.length; i < l; i++) {
            if (i >= items.length || base[i] != items[i]) {
              breakPoint = i + 1;
              break;
            }
          }
        }

        if (base.length < items.length) {
          for (i = 0, l = items.length; i < l; i++) {
            if (i >= base.length || base[i] != items[i]) {
              breakPoint = i + 1;
              break;
            }
          }
        }

        if (breakPoint === 1) {
          return path;
        }

        for (i = 0, l = base.length - (breakPoint - 1); i < l; i++) {
          out += "../";
        }

        for (i = breakPoint - 1, l = items.length; i < l; i++) {
          if (i != breakPoint - 1) {
            out += "/" + items[i];
          } else {
            out += items[i];
          }
        }

        return out;
      },

      /**
       * Converts a relative path into a absolute path.
       *
       * @method toAbsPath
       * @param {String} base Base point to convert the path from.
       * @param {String} path Relative path to convert into an absolute path.
       */
      toAbsPath: function (base, path) {
        var i, nb = 0, o = [], tr, outPath;

        // Split paths
        tr = /\/$/.test(path) ? '/' : '';
        base = base.split('/');
        path = path.split('/');

        // Remove empty chunks
        each(base, function (k) {
          if (k) {
            o.push(k);
          }
        });

        base = o;

        // Merge relURLParts chunks
        for (i = path.length - 1, o = []; i >= 0; i--) {
          // Ignore empty or .
          if (path[i].length === 0 || path[i] === ".") {
            continue;
          }

          // Is parent
          if (path[i] === '..') {
            nb++;
            continue;
          }

          // Move up
          if (nb > 0) {
            nb--;
            continue;
          }

          o.push(path[i]);
        }

        i = base.length - nb;

        // If /a/b/c or /
        if (i <= 0) {
          outPath = o.reverse().join('/');
        } else {
          outPath = base.slice(0, i).join('/') + '/' + o.reverse().join('/');
        }

        // Add front / if it's needed
        if (outPath.indexOf('/') !== 0) {
          outPath = '/' + outPath;
        }

        // Add traling / if it's needed
        if (tr && outPath.lastIndexOf('/') !== outPath.length - 1) {
          outPath += tr;
        }

        return outPath;
      },

      /**
       * Returns the full URI of the internal structure.
       *
       * @method getURI
       * @param {Boolean} noProtoHost Optional no host and protocol part. Defaults to false.
       */
      getURI: function (noProtoHost) {
        var s, self = this;

        // Rebuild source
        if (!self.source || noProtoHost) {
          s = '';

          if (!noProtoHost) {
            if (self.protocol) {
              s += self.protocol + '://';
            } else {
              s += '//';
            }

            if (self.userInfo) {
              s += self.userInfo + '@';
            }

            if (self.host) {
              s += self.host;
            }

            if (self.port) {
              s += ':' + self.port;
            }
          }

          if (self.path) {
            s += self.path;
          }

          if (self.query) {
            s += '?' + self.query;
          }

          if (self.anchor) {
            s += '#' + self.anchor;
          }

          self.source = s;
        }

        return self.source;
      }
    };

    URI.parseDataUri = function (uri) {
      var type, matches;

      uri = decodeURIComponent(uri).split(',');

      matches = /data:([^;]+)/.exec(uri[0]);
      if (matches) {
        type = matches[1];
      }

      return {
        type: type,
        data: uri[1]
      };
    };

    URI.getDocumentBaseUrl = function (loc) {
      var baseUrl;

      // Pass applewebdata:// and other non web protocols though
      if (loc.protocol.indexOf('http') !== 0 && loc.protocol !== 'file:') {
        baseUrl = loc.href;
      } else {
        baseUrl = loc.protocol + '//' + loc.host + loc.pathname;
      }

      if (/^[^:]+:\/\/\/?[^\/]+\//.test(baseUrl)) {
        baseUrl = baseUrl.replace(/[\?#].*$/, '').replace(/[\/\\][^\/]+$/, '');

        if (!/[\/\\]$/.test(baseUrl)) {
          baseUrl += '/';
        }
      }

      return baseUrl;
    };

    return URI;
  }
);

/**
 * Class.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This utilitiy class is used for easier inheritance.
 *
 * Features:
 * * Exposed super functions: this._super();
 * * Mixins
 * * Dummy functions
 * * Property functions: var value = object.value(); and object.value(newValue);
 * * Static functions
 * * Defaults settings
 */
define(
  'tinymce.core.util.Class',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    var each = Tools.each, extend = Tools.extend;

    var extendClass, initializing;

    function Class() {
    }

    // Provides classical inheritance, based on code made by John Resig
    Class.extend = extendClass = function (prop) {
      var self = this, _super = self.prototype, prototype, name, member;

      // The dummy class constructor
      function Class() {
        var i, mixins, mixin, self = this;

        // All construction is actually done in the init method
        if (!initializing) {
          // Run class constuctor
          if (self.init) {
            self.init.apply(self, arguments);
          }

          // Run mixin constructors
          mixins = self.Mixins;
          if (mixins) {
            i = mixins.length;
            while (i--) {
              mixin = mixins[i];
              if (mixin.init) {
                mixin.init.apply(self, arguments);
              }
            }
          }
        }
      }

      // Dummy function, needs to be extended in order to provide functionality
      function dummy() {
        return this;
      }

      // Creates a overloaded method for the class
      // this enables you to use this._super(); to call the super function
      function createMethod(name, fn) {
        return function () {
          var self = this, tmp = self._super, ret;

          self._super = _super[name];
          ret = fn.apply(self, arguments);
          self._super = tmp;

          return ret;
        };
      }

      // Instantiate a base class (but only create the instance,
      // don't run the init constructor)
      initializing = true;

      /*eslint new-cap:0 */
      prototype = new self();
      initializing = false;

      // Add mixins
      if (prop.Mixins) {
        each(prop.Mixins, function (mixin) {
          for (var name in mixin) {
            if (name !== "init") {
              prop[name] = mixin[name];
            }
          }
        });

        if (_super.Mixins) {
          prop.Mixins = _super.Mixins.concat(prop.Mixins);
        }
      }

      // Generate dummy methods
      if (prop.Methods) {
        each(prop.Methods.split(','), function (name) {
          prop[name] = dummy;
        });
      }

      // Generate property methods
      if (prop.Properties) {
        each(prop.Properties.split(','), function (name) {
          var fieldName = '_' + name;

          prop[name] = function (value) {
            var self = this, undef;

            // Set value
            if (value !== undef) {
              self[fieldName] = value;

              return self;
            }

            // Get value
            return self[fieldName];
          };
        });
      }

      // Static functions
      if (prop.Statics) {
        each(prop.Statics, function (func, name) {
          Class[name] = func;
        });
      }

      // Default settings
      if (prop.Defaults && _super.Defaults) {
        prop.Defaults = extend({}, _super.Defaults, prop.Defaults);
      }

      // Copy the properties over onto the new prototype
      for (name in prop) {
        member = prop[name];

        if (typeof member == "function" && _super[name]) {
          prototype[name] = createMethod(name, member);
        } else {
          prototype[name] = member;
        }
      }

      // Populate our constructed prototype object
      Class.prototype = prototype;

      // Enforce the constructor to be what we expect
      Class.constructor = Class;

      // And make this class extendible
      Class.extend = extendClass;

      return Class;
    };

    return Class;
  }
);
/**
 * EventDispatcher.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class lets you add/remove and fire events by name on the specified scope. This makes
 * it easy to add event listener logic to any class.
 *
 * @class tinymce.util.EventDispatcher
 * @example
 *  var eventDispatcher = new EventDispatcher();
 *
 *  eventDispatcher.on('click', function() {console.log('data');});
 *  eventDispatcher.fire('click', {data: 123});
 */
define(
  'tinymce.core.util.EventDispatcher',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    var nativeEvents = Tools.makeMap(
      "focus blur focusin focusout click dblclick mousedown mouseup mousemove mouseover beforepaste paste cut copy selectionchange " +
      "mouseout mouseenter mouseleave wheel keydown keypress keyup input contextmenu dragstart dragend dragover " +
      "draggesture dragdrop drop drag submit " +
      "compositionstart compositionend compositionupdate touchstart touchmove touchend",
      ' '
    );

    function Dispatcher(settings) {
      var self = this, scope, bindings = {}, toggleEvent;

      function returnFalse() {
        return false;
      }

      function returnTrue() {
        return true;
      }

      settings = settings || {};
      scope = settings.scope || self;
      toggleEvent = settings.toggleEvent || returnFalse;

      /**
       * Fires the specified event by name.
       *
       * @method fire
       * @param {String} name Name of the event to fire.
       * @param {Object?} args Event arguments.
       * @return {Object} Event args instance passed in.
       * @example
       * instance.fire('event', {...});
       */
      function fire(name, args) {
        var handlers, i, l, callback;

        name = name.toLowerCase();
        args = args || {};
        args.type = name;

        // Setup target is there isn't one
        if (!args.target) {
          args.target = scope;
        }

        // Add event delegation methods if they are missing
        if (!args.preventDefault) {
          // Add preventDefault method
          args.preventDefault = function () {
            args.isDefaultPrevented = returnTrue;
          };

          // Add stopPropagation
          args.stopPropagation = function () {
            args.isPropagationStopped = returnTrue;
          };

          // Add stopImmediatePropagation
          args.stopImmediatePropagation = function () {
            args.isImmediatePropagationStopped = returnTrue;
          };

          // Add event delegation states
          args.isDefaultPrevented = returnFalse;
          args.isPropagationStopped = returnFalse;
          args.isImmediatePropagationStopped = returnFalse;
        }

        if (settings.beforeFire) {
          settings.beforeFire(args);
        }

        handlers = bindings[name];
        if (handlers) {
          for (i = 0, l = handlers.length; i < l; i++) {
            callback = handlers[i];

            // Unbind handlers marked with "once"
            if (callback.once) {
              off(name, callback.func);
            }

            // Stop immediate propagation if needed
            if (args.isImmediatePropagationStopped()) {
              args.stopPropagation();
              return args;
            }

            // If callback returns false then prevent default and stop all propagation
            if (callback.func.call(scope, args) === false) {
              args.preventDefault();
              return args;
            }
          }
        }

        return args;
      }

      /**
       * Binds an event listener to a specific event by name.
       *
       * @method on
       * @param {String} name Event name or space separated list of events to bind.
       * @param {callback} callback Callback to be executed when the event occurs.
       * @param {Boolean} first Optional flag if the event should be prepended. Use this with care.
       * @return {Object} Current class instance.
       * @example
       * instance.on('event', function(e) {
       *     // Callback logic
       * });
       */
      function on(name, callback, prepend, extra) {
        var handlers, names, i;

        if (callback === false) {
          callback = returnFalse;
        }

        if (callback) {
          callback = {
            func: callback
          };

          if (extra) {
            Tools.extend(callback, extra);
          }

          names = name.toLowerCase().split(' ');
          i = names.length;
          while (i--) {
            name = names[i];
            handlers = bindings[name];
            if (!handlers) {
              handlers = bindings[name] = [];
              toggleEvent(name, true);
            }

            if (prepend) {
              handlers.unshift(callback);
            } else {
              handlers.push(callback);
            }
          }
        }

        return self;
      }

      /**
       * Unbinds an event listener to a specific event by name.
       *
       * @method off
       * @param {String?} name Name of the event to unbind.
       * @param {callback?} callback Callback to unbind.
       * @return {Object} Current class instance.
       * @example
       * // Unbind specific callback
       * instance.off('event', handler);
       *
       * // Unbind all listeners by name
       * instance.off('event');
       *
       * // Unbind all events
       * instance.off();
       */
      function off(name, callback) {
        var i, handlers, bindingName, names, hi;

        if (name) {
          names = name.toLowerCase().split(' ');
          i = names.length;
          while (i--) {
            name = names[i];
            handlers = bindings[name];

            // Unbind all handlers
            if (!name) {
              for (bindingName in bindings) {
                toggleEvent(bindingName, false);
                delete bindings[bindingName];
              }

              return self;
            }

            if (handlers) {
              // Unbind all by name
              if (!callback) {
                handlers.length = 0;
              } else {
                // Unbind specific ones
                hi = handlers.length;
                while (hi--) {
                  if (handlers[hi].func === callback) {
                    handlers = handlers.slice(0, hi).concat(handlers.slice(hi + 1));
                    bindings[name] = handlers;
                  }
                }
              }

              if (!handlers.length) {
                toggleEvent(name, false);
                delete bindings[name];
              }
            }
          }
        } else {
          for (name in bindings) {
            toggleEvent(name, false);
          }

          bindings = {};
        }

        return self;
      }

      /**
       * Binds an event listener to a specific event by name
       * and automatically unbind the event once the callback fires.
       *
       * @method once
       * @param {String} name Event name or space separated list of events to bind.
       * @param {callback} callback Callback to be executed when the event occurs.
       * @param {Boolean} first Optional flag if the event should be prepended. Use this with care.
       * @return {Object} Current class instance.
       * @example
       * instance.once('event', function(e) {
       *     // Callback logic
       * });
       */
      function once(name, callback, prepend) {
        return on(name, callback, prepend, { once: true });
      }

      /**
       * Returns true/false if the dispatcher has a event of the specified name.
       *
       * @method has
       * @param {String} name Name of the event to check for.
       * @return {Boolean} true/false if the event exists or not.
       */
      function has(name) {
        name = name.toLowerCase();
        return !(!bindings[name] || bindings[name].length === 0);
      }

      // Expose
      self.fire = fire;
      self.on = on;
      self.off = off;
      self.once = once;
      self.has = has;
    }

    /**
     * Returns true/false if the specified event name is a native browser event or not.
     *
     * @method isNative
     * @param {String} name Name to check if it's native.
     * @return {Boolean} true/false if the event is native or not.
     * @static
     */
    Dispatcher.isNative = function (name) {
      return !!nativeEvents[name.toLowerCase()];
    };

    return Dispatcher;
  }
);

/**
 * Observable.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This mixin will add event binding logic to classes.
 *
 * @mixin tinymce.util.Observable
 */
define(
  'tinymce.core.util.Observable',
  [
    "tinymce.core.util.EventDispatcher"
  ],
  function (EventDispatcher) {
    function getEventDispatcher(obj) {
      if (!obj._eventDispatcher) {
        obj._eventDispatcher = new EventDispatcher({
          scope: obj,
          toggleEvent: function (name, state) {
            if (EventDispatcher.isNative(name) && obj.toggleNativeEvent) {
              obj.toggleNativeEvent(name, state);
            }
          }
        });
      }

      return obj._eventDispatcher;
    }

    return {
      /**
       * Fires the specified event by name. Consult the
       * <a href="/docs/advanced/events">event reference</a> for more details on each event.
       *
       * @method fire
       * @param {String} name Name of the event to fire.
       * @param {Object?} args Event arguments.
       * @param {Boolean?} bubble True/false if the event is to be bubbled.
       * @return {Object} Event args instance passed in.
       * @example
       * instance.fire('event', {...});
       */
      fire: function (name, args, bubble) {
        var self = this;

        // Prevent all events except the remove event after the instance has been removed
        if (self.removed && name !== "remove") {
          return args;
        }

        args = getEventDispatcher(self).fire(name, args, bubble);

        // Bubble event up to parents
        if (bubble !== false && self.parent) {
          var parent = self.parent();
          while (parent && !args.isPropagationStopped()) {
            parent.fire(name, args, false);
            parent = parent.parent();
          }
        }

        return args;
      },

      /**
       * Binds an event listener to a specific event by name. Consult the
       * <a href="/docs/advanced/events">event reference</a> for more details on each event.
       *
       * @method on
       * @param {String} name Event name or space separated list of events to bind.
       * @param {callback} callback Callback to be executed when the event occurs.
       * @param {Boolean} first Optional flag if the event should be prepended. Use this with care.
       * @return {Object} Current class instance.
       * @example
       * instance.on('event', function(e) {
       *     // Callback logic
       * });
       */
      on: function (name, callback, prepend) {
        return getEventDispatcher(this).on(name, callback, prepend);
      },

      /**
       * Unbinds an event listener to a specific event by name. Consult the
       * <a href="/docs/advanced/events">event reference</a> for more details on each event.
       *
       * @method off
       * @param {String?} name Name of the event to unbind.
       * @param {callback?} callback Callback to unbind.
       * @return {Object} Current class instance.
       * @example
       * // Unbind specific callback
       * instance.off('event', handler);
       *
       * // Unbind all listeners by name
       * instance.off('event');
       *
       * // Unbind all events
       * instance.off();
       */
      off: function (name, callback) {
        return getEventDispatcher(this).off(name, callback);
      },

      /**
       * Bind the event callback and once it fires the callback is removed. Consult the
       * <a href="/docs/advanced/events">event reference</a> for more details on each event.
       *
       * @method once
       * @param {String} name Name of the event to bind.
       * @param {callback} callback Callback to bind only once.
       * @return {Object} Current class instance.
       */
      once: function (name, callback) {
        return getEventDispatcher(this).once(name, callback);
      },

      /**
       * Returns true/false if the object has a event of the specified name.
       *
       * @method hasEventListeners
       * @param {String} name Name of the event to check for.
       * @return {Boolean} true/false if the event exists or not.
       */
      hasEventListeners: function (name) {
        return getEventDispatcher(this).has(name);
      }
    };
  }
);
/**
 * Binding.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class gets dynamically extended to provide a binding between two models. This makes it possible to
 * sync the state of two properties in two models by a layer of abstraction.
 *
 * @private
 * @class tinymce.data.Binding
 */
define(
  'tinymce.core.data.Binding',
  [
  ],
  function () {
    /**
     * Constructs a new bidning.
     *
     * @constructor
     * @method Binding
     * @param {Object} settings Settings to the binding.
     */
    function Binding(settings) {
      this.create = settings.create;
    }

    /**
     * Creates a binding for a property on a model.
     *
     * @method create
     * @param {tinymce.data.ObservableObject} model Model to create binding to.
     * @param {String} name Name of property to bind.
     * @return {tinymce.data.Binding} Binding instance.
     */
    Binding.create = function (model, name) {
      return new Binding({
        create: function (otherModel, otherName) {
          var bindings;

          function fromSelfToOther(e) {
            otherModel.set(otherName, e.value);
          }

          function fromOtherToSelf(e) {
            model.set(name, e.value);
          }

          otherModel.on('change:' + otherName, fromOtherToSelf);
          model.on('change:' + name, fromSelfToOther);

          // Keep track of the bindings
          bindings = otherModel._bindings;

          if (!bindings) {
            bindings = otherModel._bindings = [];

            otherModel.on('destroy', function () {
              var i = bindings.length;

              while (i--) {
                bindings[i]();
              }
            });
          }

          bindings.push(function () {
            model.off('change:' + name, fromSelfToOther);
          });

          return model.get(name);
        }
      });
    };

    return Binding;
  }
);
/**
 * ObservableObject.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is a object that is observable when properties changes a change event gets emitted.
 *
 * @private
 * @class tinymce.data.ObservableObject
 */
define(
  'tinymce.core.data.ObservableObject',
  [
    'tinymce.core.data.Binding',
    'tinymce.core.util.Class',
    'tinymce.core.util.Observable',
    'tinymce.core.util.Tools'
  ], function (Binding, Class, Observable, Tools) {
    function isNode(node) {
      return node.nodeType > 0;
    }

    // Todo: Maybe this should be shallow compare since it might be huge object references
    function isEqual(a, b) {
      var k, checked;

      // Strict equals
      if (a === b) {
        return true;
      }

      // Compare null
      if (a === null || b === null) {
        return a === b;
      }

      // Compare number, boolean, string, undefined
      if (typeof a !== "object" || typeof b !== "object") {
        return a === b;
      }

      // Compare arrays
      if (Tools.isArray(b)) {
        if (a.length !== b.length) {
          return false;
        }

        k = a.length;
        while (k--) {
          if (!isEqual(a[k], b[k])) {
            return false;
          }
        }
      }

      // Shallow compare nodes
      if (isNode(a) || isNode(b)) {
        return a === b;
      }

      // Compare objects
      checked = {};
      for (k in b) {
        if (!isEqual(a[k], b[k])) {
          return false;
        }

        checked[k] = true;
      }

      for (k in a) {
        if (!checked[k] && !isEqual(a[k], b[k])) {
          return false;
        }
      }

      return true;
    }

    return Class.extend({
      Mixins: [Observable],

      /**
       * Constructs a new observable object instance.
       *
       * @constructor
       * @param {Object} data Initial data for the object.
       */
      init: function (data) {
        var name, value;

        data = data || {};

        for (name in data) {
          value = data[name];

          if (value instanceof Binding) {
            data[name] = value.create(this, name);
          }
        }

        this.data = data;
      },

      /**
       * Sets a property on the value this will call
       * observers if the value is a change from the current value.
       *
       * @method set
       * @param {String/object} name Name of the property to set or a object of items to set.
       * @param {Object} value Value to set for the property.
       * @return {tinymce.data.ObservableObject} Observable object instance.
       */
      set: function (name, value) {
        var key, args, oldValue = this.data[name];

        if (value instanceof Binding) {
          value = value.create(this, name);
        }

        if (typeof name === "object") {
          for (key in name) {
            this.set(key, name[key]);
          }

          return this;
        }

        if (!isEqual(oldValue, value)) {
          this.data[name] = value;

          args = {
            target: this,
            name: name,
            value: value,
            oldValue: oldValue
          };

          this.fire('change:' + name, args);
          this.fire('change', args);
        }

        return this;
      },

      /**
       * Gets a property by name.
       *
       * @method get
       * @param {String} name Name of the property to get.
       * @return {Object} Object value of propery.
       */
      get: function (name) {
        return this.data[name];
      },

      /**
       * Returns true/false if the specified property exists.
       *
       * @method has
       * @param {String} name Name of the property to check for.
       * @return {Boolean} true/false if the item exists.
       */
      has: function (name) {
        return name in this.data;
      },

      /**
       * Returns a dynamic property binding for the specified property name. This makes
       * it possible to sync the state of two properties in two ObservableObject instances.
       *
       * @method bind
       * @param {String} name Name of the property to sync with the property it's inserted to.
       * @return {tinymce.data.Binding} Data binding instance.
       */
      bind: function (name) {
        return Binding.create(this, name);
      },

      /**
       * Destroys the observable object and fires the "destroy"
       * event and clean up any internal resources.
       *
       * @method destroy
       */
      destroy: function () {
        this.fire('destroy');
      }
    });
  }
);
/**
 * Selector.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*eslint no-nested-ternary:0 */

/**
 * Selector engine, enables you to select controls by using CSS like expressions.
 * We currently only support basic CSS expressions to reduce the size of the core
 * and the ones we support should be enough for most cases.
 *
 * @example
 * Supported expressions:
 *  element
 *  element#name
 *  element.class
 *  element[attr]
 *  element[attr*=value]
 *  element[attr~=value]
 *  element[attr!=value]
 *  element[attr^=value]
 *  element[attr$=value]
 *  element:<state>
 *  element:not(<expression>)
 *  element:first
 *  element:last
 *  element:odd
 *  element:even
 *  element element
 *  element > element
 *
 * @class tinymce.ui.Selector
 */
define(
  'tinymce.core.ui.Selector',
  [
    "tinymce.core.util.Class"
  ],
  function (Class) {
    "use strict";

    /**
     * Produces an array with a unique set of objects. It will not compare the values
     * but the references of the objects.
     *
     * @private
     * @method unqiue
     * @param {Array} array Array to make into an array with unique items.
     * @return {Array} Array with unique items.
     */
    function unique(array) {
      var uniqueItems = [], i = array.length, item;

      while (i--) {
        item = array[i];

        if (!item.__checked) {
          uniqueItems.push(item);
          item.__checked = 1;
        }
      }

      i = uniqueItems.length;
      while (i--) {
        delete uniqueItems[i].__checked;
      }

      return uniqueItems;
    }

    var expression = /^([\w\\*]+)?(?:#([\w\-\\]+))?(?:\.([\w\\\.]+))?(?:\[\@?([\w\\]+)([\^\$\*!~]?=)([\w\\]+)\])?(?:\:(.+))?/i;

    /*jshint maxlen:255 */
    /*eslint max-len:0 */
    var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^\[\]]*\]|['"][^'"]*['"]|[^\[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
      whiteSpace = /^\s*|\s*$/g,
      Collection;

    var Selector = Class.extend({
      /**
       * Constructs a new Selector instance.
       *
       * @constructor
       * @method init
       * @param {String} selector CSS like selector expression.
       */
      init: function (selector) {
        var match = this.match;

        function compileNameFilter(name) {
          if (name) {
            name = name.toLowerCase();

            return function (item) {
              return name === '*' || item.type === name;
            };
          }
        }

        function compileIdFilter(id) {
          if (id) {
            return function (item) {
              return item._name === id;
            };
          }
        }

        function compileClassesFilter(classes) {
          if (classes) {
            classes = classes.split('.');

            return function (item) {
              var i = classes.length;

              while (i--) {
                if (!item.classes.contains(classes[i])) {
                  return false;
                }
              }

              return true;
            };
          }
        }

        function compileAttrFilter(name, cmp, check) {
          if (name) {
            return function (item) {
              var value = item[name] ? item[name]() : '';

              return !cmp ? !!check :
                cmp === "=" ? value === check :
                  cmp === "*=" ? value.indexOf(check) >= 0 :
                    cmp === "~=" ? (" " + value + " ").indexOf(" " + check + " ") >= 0 :
                      cmp === "!=" ? value != check :
                        cmp === "^=" ? value.indexOf(check) === 0 :
                          cmp === "$=" ? value.substr(value.length - check.length) === check :
                            false;
            };
          }
        }

        function compilePsuedoFilter(name) {
          var notSelectors;

          if (name) {
            name = /(?:not\((.+)\))|(.+)/i.exec(name);

            if (!name[1]) {
              name = name[2];

              return function (item, index, length) {
                return name === 'first' ? index === 0 :
                  name === 'last' ? index === length - 1 :
                    name === 'even' ? index % 2 === 0 :
                      name === 'odd' ? index % 2 === 1 :
                        item[name] ? item[name]() :
                          false;
              };
            }

            // Compile not expression
            notSelectors = parseChunks(name[1], []);

            return function (item) {
              return !match(item, notSelectors);
            };
          }
        }

        function compile(selector, filters, direct) {
          var parts;

          function add(filter) {
            if (filter) {
              filters.push(filter);
            }
          }

          // Parse expression into parts
          parts = expression.exec(selector.replace(whiteSpace, ''));

          add(compileNameFilter(parts[1]));
          add(compileIdFilter(parts[2]));
          add(compileClassesFilter(parts[3]));
          add(compileAttrFilter(parts[4], parts[5], parts[6]));
          add(compilePsuedoFilter(parts[7]));

          // Mark the filter with pseudo for performance
          filters.pseudo = !!parts[7];
          filters.direct = direct;

          return filters;
        }

        // Parser logic based on Sizzle by John Resig
        function parseChunks(selector, selectors) {
          var parts = [], extra, matches, i;

          do {
            chunker.exec("");
            matches = chunker.exec(selector);

            if (matches) {
              selector = matches[3];
              parts.push(matches[1]);

              if (matches[2]) {
                extra = matches[3];
                break;
              }
            }
          } while (matches);

          if (extra) {
            parseChunks(extra, selectors);
          }

          selector = [];
          for (i = 0; i < parts.length; i++) {
            if (parts[i] != '>') {
              selector.push(compile(parts[i], [], parts[i - 1] === '>'));
            }
          }

          selectors.push(selector);

          return selectors;
        }

        this._selectors = parseChunks(selector, []);
      },

      /**
       * Returns true/false if the selector matches the specified control.
       *
       * @method match
       * @param {tinymce.ui.Control} control Control to match against the selector.
       * @param {Array} selectors Optional array of selectors, mostly used internally.
       * @return {Boolean} true/false state if the control matches or not.
       */
      match: function (control, selectors) {
        var i, l, si, sl, selector, fi, fl, filters, index, length, siblings, count, item;

        selectors = selectors || this._selectors;
        for (i = 0, l = selectors.length; i < l; i++) {
          selector = selectors[i];
          sl = selector.length;
          item = control;
          count = 0;

          for (si = sl - 1; si >= 0; si--) {
            filters = selector[si];

            while (item) {
              // Find the index and length since a pseudo filter like :first needs it
              if (filters.pseudo) {
                siblings = item.parent().items();
                index = length = siblings.length;
                while (index--) {
                  if (siblings[index] === item) {
                    break;
                  }
                }
              }

              for (fi = 0, fl = filters.length; fi < fl; fi++) {
                if (!filters[fi](item, index, length)) {
                  fi = fl + 1;
                  break;
                }
              }

              if (fi === fl) {
                count++;
                break;
              } else {
                // If it didn't match the right most expression then
                // break since it's no point looking at the parents
                if (si === sl - 1) {
                  break;
                }
              }

              item = item.parent();
            }
          }

          // If we found all selectors then return true otherwise continue looking
          if (count === sl) {
            return true;
          }
        }

        return false;
      },

      /**
       * Returns a tinymce.ui.Collection with matches of the specified selector inside the specified container.
       *
       * @method find
       * @param {tinymce.ui.Control} container Container to look for items in.
       * @return {tinymce.ui.Collection} Collection with matched elements.
       */
      find: function (container) {
        var matches = [], i, l, selectors = this._selectors;

        function collect(items, selector, index) {
          var i, l, fi, fl, item, filters = selector[index];

          for (i = 0, l = items.length; i < l; i++) {
            item = items[i];

            // Run each filter against the item
            for (fi = 0, fl = filters.length; fi < fl; fi++) {
              if (!filters[fi](item, i, l)) {
                fi = fl + 1;
                break;
              }
            }

            // All filters matched the item
            if (fi === fl) {
              // Matched item is on the last expression like: panel toolbar [button]
              if (index == selector.length - 1) {
                matches.push(item);
              } else {
                // Collect next expression type
                if (item.items) {
                  collect(item.items(), selector, index + 1);
                }
              }
            } else if (filters.direct) {
              return;
            }

            // Collect child items
            if (item.items) {
              collect(item.items(), selector, index);
            }
          }
        }

        if (container.items) {
          for (i = 0, l = selectors.length; i < l; i++) {
            collect(container.items(), selectors[i], 0);
          }

          // Unique the matches if needed
          if (l > 1) {
            matches = unique(matches);
          }
        }

        // Fix for circular reference
        if (!Collection) {
          // TODO: Fix me!
          Collection = Selector.Collection;
        }

        return new Collection(matches);
      }
    });

    return Selector;
  }
);

/**
 * Collection.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Control collection, this class contains control instances and it enables you to
 * perform actions on all the contained items. This is very similar to how jQuery works.
 *
 * @example
 * someCollection.show().disabled(true);
 *
 * @class tinymce.ui.Collection
 */
define(
  'tinymce.core.ui.Collection',
  [
    "tinymce.core.util.Tools",
    "tinymce.core.ui.Selector",
    "tinymce.core.util.Class"
  ],
  function (Tools, Selector, Class) {
    "use strict";

    var Collection, proto, push = Array.prototype.push, slice = Array.prototype.slice;

    proto = {
      /**
       * Current number of contained control instances.
       *
       * @field length
       * @type Number
       */
      length: 0,

      /**
       * Constructor for the collection.
       *
       * @constructor
       * @method init
       * @param {Array} items Optional array with items to add.
       */
      init: function (items) {
        if (items) {
          this.add(items);
        }
      },

      /**
       * Adds new items to the control collection.
       *
       * @method add
       * @param {Array} items Array if items to add to collection.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      add: function (items) {
        var self = this;

        // Force single item into array
        if (!Tools.isArray(items)) {
          if (items instanceof Collection) {
            self.add(items.toArray());
          } else {
            push.call(self, items);
          }
        } else {
          push.apply(self, items);
        }

        return self;
      },

      /**
       * Sets the contents of the collection. This will remove any existing items
       * and replace them with the ones specified in the input array.
       *
       * @method set
       * @param {Array} items Array with items to set into the Collection.
       * @return {tinymce.ui.Collection} Collection instance.
       */
      set: function (items) {
        var self = this, len = self.length, i;

        self.length = 0;
        self.add(items);

        // Remove old entries
        for (i = self.length; i < len; i++) {
          delete self[i];
        }

        return self;
      },

      /**
       * Filters the collection item based on the specified selector expression or selector function.
       *
       * @method filter
       * @param {String} selector Selector expression to filter items by.
       * @return {tinymce.ui.Collection} Collection containing the filtered items.
       */
      filter: function (selector) {
        var self = this, i, l, matches = [], item, match;

        // Compile string into selector expression
        if (typeof selector === "string") {
          selector = new Selector(selector);

          match = function (item) {
            return selector.match(item);
          };
        } else {
          // Use selector as matching function
          match = selector;
        }

        for (i = 0, l = self.length; i < l; i++) {
          item = self[i];

          if (match(item)) {
            matches.push(item);
          }
        }

        return new Collection(matches);
      },

      /**
       * Slices the items within the collection.
       *
       * @method slice
       * @param {Number} index Index to slice at.
       * @param {Number} len Optional length to slice.
       * @return {tinymce.ui.Collection} Current collection.
       */
      slice: function () {
        return new Collection(slice.apply(this, arguments));
      },

      /**
       * Makes the current collection equal to the specified index.
       *
       * @method eq
       * @param {Number} index Index of the item to set the collection to.
       * @return {tinymce.ui.Collection} Current collection.
       */
      eq: function (index) {
        return index === -1 ? this.slice(index) : this.slice(index, +index + 1);
      },

      /**
       * Executes the specified callback on each item in collection.
       *
       * @method each
       * @param {function} callback Callback to execute for each item in collection.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      each: function (callback) {
        Tools.each(this, callback);

        return this;
      },

      /**
       * Returns an JavaScript array object of the contents inside the collection.
       *
       * @method toArray
       * @return {Array} Array with all items from collection.
       */
      toArray: function () {
        return Tools.toArray(this);
      },

      /**
       * Finds the index of the specified control or return -1 if it isn't in the collection.
       *
       * @method indexOf
       * @param {Control} ctrl Control instance to look for.
       * @return {Number} Index of the specified control or -1.
       */
      indexOf: function (ctrl) {
        var self = this, i = self.length;

        while (i--) {
          if (self[i] === ctrl) {
            break;
          }
        }

        return i;
      },

      /**
       * Returns a new collection of the contents in reverse order.
       *
       * @method reverse
       * @return {tinymce.ui.Collection} Collection instance with reversed items.
       */
      reverse: function () {
        return new Collection(Tools.toArray(this).reverse());
      },

      /**
       * Returns true/false if the class exists or not.
       *
       * @method hasClass
       * @param {String} cls Class to check for.
       * @return {Boolean} true/false state if the class exists or not.
       */
      hasClass: function (cls) {
        return this[0] ? this[0].classes.contains(cls) : false;
      },

      /**
       * Sets/gets the specific property on the items in the collection. The same as executing control.<property>(<value>);
       *
       * @method prop
       * @param {String} name Property name to get/set.
       * @param {Object} value Optional object value to set.
       * @return {tinymce.ui.Collection} Current collection instance or value of the first item on a get operation.
       */
      prop: function (name, value) {
        var self = this, undef, item;

        if (value !== undef) {
          self.each(function (item) {
            if (item[name]) {
              item[name](value);
            }
          });

          return self;
        }

        item = self[0];

        if (item && item[name]) {
          return item[name]();
        }
      },

      /**
       * Executes the specific function name with optional arguments an all items in collection if it exists.
       *
       * @example collection.exec("myMethod", arg1, arg2, arg3);
       * @method exec
       * @param {String} name Name of the function to execute.
       * @param {Object} ... Multiple arguments to pass to each function.
       * @return {tinymce.ui.Collection} Current collection.
       */
      exec: function (name) {
        var self = this, args = Tools.toArray(arguments).slice(1);

        self.each(function (item) {
          if (item[name]) {
            item[name].apply(item, args);
          }
        });

        return self;
      },

      /**
       * Remove all items from collection and DOM.
       *
       * @method remove
       * @return {tinymce.ui.Collection} Current collection.
       */
      remove: function () {
        var i = this.length;

        while (i--) {
          this[i].remove();
        }

        return this;
      },

      /**
       * Adds a class to all items in the collection.
       *
       * @method addClass
       * @param {String} cls Class to add to each item.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      addClass: function (cls) {
        return this.each(function (item) {
          item.classes.add(cls);
        });
      },

      /**
       * Removes the specified class from all items in collection.
       *
       * @method removeClass
       * @param {String} cls Class to remove from each item.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      removeClass: function (cls) {
        return this.each(function (item) {
          item.classes.remove(cls);
        });
      }

      /**
       * Fires the specified event by name and arguments on the control. This will execute all
       * bound event handlers.
       *
       * @method fire
       * @param {String} name Name of the event to fire.
       * @param {Object} args Optional arguments to pass to the event.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      // fire: function(event, args) {}, -- Generated by code below

      /**
       * Binds a callback to the specified event. This event can both be
       * native browser events like "click" or custom ones like PostRender.
       *
       * The callback function will have two parameters the first one being the control that received the event
       * the second one will be the event object either the browsers native event object or a custom JS object.
       *
       * @method on
       * @param {String} name Name of the event to bind. For example "click".
       * @param {String/function} callback Callback function to execute ones the event occurs.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      // on: function(name, callback) {}, -- Generated by code below

      /**
       * Unbinds the specified event and optionally a specific callback. If you omit the name
       * parameter all event handlers will be removed. If you omit the callback all event handles
       * by the specified name will be removed.
       *
       * @method off
       * @param {String} name Optional name for the event to unbind.
       * @param {function} callback Optional callback function to unbind.
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      // off: function(name, callback) {}, -- Generated by code below

      /**
       * Shows the items in the current collection.
       *
       * @method show
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      // show: function() {}, -- Generated by code below

      /**
       * Hides the items in the current collection.
       *
       * @method hide
       * @return {tinymce.ui.Collection} Current collection instance.
       */
      // hide: function() {}, -- Generated by code below

      /**
       * Sets/gets the text contents of the items in the current collection.
       *
       * @method text
       * @return {tinymce.ui.Collection} Current collection instance or text value of the first item on a get operation.
       */
      // text: function(value) {}, -- Generated by code below

      /**
       * Sets/gets the name contents of the items in the current collection.
       *
       * @method name
       * @return {tinymce.ui.Collection} Current collection instance or name value of the first item on a get operation.
       */
      // name: function(value) {}, -- Generated by code below

      /**
       * Sets/gets the disabled state on the items in the current collection.
       *
       * @method disabled
       * @return {tinymce.ui.Collection} Current collection instance or disabled state of the first item on a get operation.
       */
      // disabled: function(state) {}, -- Generated by code below

      /**
       * Sets/gets the active state on the items in the current collection.
       *
       * @method active
       * @return {tinymce.ui.Collection} Current collection instance or active state of the first item on a get operation.
       */
      // active: function(state) {}, -- Generated by code below

      /**
       * Sets/gets the selected state on the items in the current collection.
       *
       * @method selected
       * @return {tinymce.ui.Collection} Current collection instance or selected state of the first item on a get operation.
       */
      // selected: function(state) {}, -- Generated by code below

      /**
       * Sets/gets the selected state on the items in the current collection.
       *
       * @method visible
       * @return {tinymce.ui.Collection} Current collection instance or visible state of the first item on a get operation.
       */
      // visible: function(state) {}, -- Generated by code below
    };

    // Extend tinymce.ui.Collection prototype with some generated control specific methods
    Tools.each('fire on off show hide append prepend before after reflow'.split(' '), function (name) {
      proto[name] = function () {
        var args = Tools.toArray(arguments);

        this.each(function (ctrl) {
          if (name in ctrl) {
            ctrl[name].apply(ctrl, args);
          }
        });

        return this;
      };
    });

    // Extend tinymce.ui.Collection prototype with some property methods
    Tools.each('text name disabled active selected checked visible parent value data'.split(' '), function (name) {
      proto[name] = function (value) {
        return this.prop(name, value);
      };
    });

    // Create class based on the new prototype
    Collection = Class.extend(proto);

    // Stick Collection into Selector to prevent circual references
    Selector.Collection = Collection;

    return Collection;
  }
);
/**
 * DomUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Private UI DomUtils proxy.
 *
 * @private
 * @class tinymce.ui.DomUtils
 */
define(
  'tinymce.core.ui.DomUtils',
  [
    "tinymce.core.Env",
    "tinymce.core.util.Tools",
    "tinymce.core.dom.DOMUtils"
  ],
  function (Env, Tools, DOMUtils) {
    "use strict";

    var count = 0;

    var funcs = {
      id: function () {
        return 'mceu_' + (count++);
      },

      create: function (name, attrs, children) {
        var elm = document.createElement(name);

        DOMUtils.DOM.setAttribs(elm, attrs);

        if (typeof children === 'string') {
          elm.innerHTML = children;
        } else {
          Tools.each(children, function (child) {
            if (child.nodeType) {
              elm.appendChild(child);
            }
          });
        }

        return elm;
      },

      createFragment: function (html) {
        return DOMUtils.DOM.createFragment(html);
      },

      getWindowSize: function () {
        return DOMUtils.DOM.getViewPort();
      },

      getSize: function (elm) {
        var width, height;

        if (elm.getBoundingClientRect) {
          var rect = elm.getBoundingClientRect();

          width = Math.max(rect.width || (rect.right - rect.left), elm.offsetWidth);
          height = Math.max(rect.height || (rect.bottom - rect.bottom), elm.offsetHeight);
        } else {
          width = elm.offsetWidth;
          height = elm.offsetHeight;
        }

        return { width: width, height: height };
      },

      getPos: function (elm, root) {
        return DOMUtils.DOM.getPos(elm, root || funcs.getContainer());
      },

      getContainer: function () {
        return Env.container ? Env.container : document.body;
      },

      getViewPort: function (win) {
        return DOMUtils.DOM.getViewPort(win);
      },

      get: function (id) {
        return document.getElementById(id);
      },

      addClass: function (elm, cls) {
        return DOMUtils.DOM.addClass(elm, cls);
      },

      removeClass: function (elm, cls) {
        return DOMUtils.DOM.removeClass(elm, cls);
      },

      hasClass: function (elm, cls) {
        return DOMUtils.DOM.hasClass(elm, cls);
      },

      toggleClass: function (elm, cls, state) {
        return DOMUtils.DOM.toggleClass(elm, cls, state);
      },

      css: function (elm, name, value) {
        return DOMUtils.DOM.setStyle(elm, name, value);
      },

      getRuntimeStyle: function (elm, name) {
        return DOMUtils.DOM.getStyle(elm, name, true);
      },

      on: function (target, name, callback, scope) {
        return DOMUtils.DOM.bind(target, name, callback, scope);
      },

      off: function (target, name, callback) {
        return DOMUtils.DOM.unbind(target, name, callback);
      },

      fire: function (target, name, args) {
        return DOMUtils.DOM.fire(target, name, args);
      },

      innerHtml: function (elm, html) {
        // Workaround for <div> in <p> bug on IE 8 #6178
        DOMUtils.DOM.setHTML(elm, html);
      }
    };

    return funcs;
  }
);
/**
 * BoxUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility class for box parsing and measuring.
 *
 * @private
 * @class tinymce.ui.BoxUtils
 */
define(
  'tinymce.core.ui.BoxUtils',
  [
  ],
  function () {
    "use strict";

    return {
      /**
       * Parses the specified box value. A box value contains 1-4 properties in clockwise order.
       *
       * @method parseBox
       * @param {String/Number} value Box value "0 1 2 3" or "0" etc.
       * @return {Object} Object with top/right/bottom/left properties.
       * @private
       */
      parseBox: function (value) {
        var len, radix = 10;

        if (!value) {
          return;
        }

        if (typeof value === "number") {
          value = value || 0;

          return {
            top: value,
            left: value,
            bottom: value,
            right: value
          };
        }

        value = value.split(' ');
        len = value.length;

        if (len === 1) {
          value[1] = value[2] = value[3] = value[0];
        } else if (len === 2) {
          value[2] = value[0];
          value[3] = value[1];
        } else if (len === 3) {
          value[3] = value[1];
        }

        return {
          top: parseInt(value[0], radix) || 0,
          right: parseInt(value[1], radix) || 0,
          bottom: parseInt(value[2], radix) || 0,
          left: parseInt(value[3], radix) || 0
        };
      },

      measureBox: function (elm, prefix) {
        function getStyle(name) {
          var defaultView = document.defaultView;

          if (defaultView) {
            // Remove camelcase
            name = name.replace(/[A-Z]/g, function (a) {
              return '-' + a;
            });

            return defaultView.getComputedStyle(elm, null).getPropertyValue(name);
          }

          return elm.currentStyle[name];
        }

        function getSide(name) {
          var val = parseFloat(getStyle(name), 10);

          return isNaN(val) ? 0 : val;
        }

        return {
          top: getSide(prefix + "TopWidth"),
          right: getSide(prefix + "RightWidth"),
          bottom: getSide(prefix + "BottomWidth"),
          left: getSide(prefix + "LeftWidth")
        };
      }
    };
  }
);

/**
 * ClassList.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Handles adding and removal of classes.
 *
 * @private
 * @class tinymce.ui.ClassList
 */
define(
  'tinymce.core.ui.ClassList',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    "use strict";

    function noop() {
    }

    /**
     * Constructs a new class list the specified onchange
     * callback will be executed when the class list gets modifed.
     *
     * @constructor ClassList
     * @param {function} onchange Onchange callback to be executed.
     */
    function ClassList(onchange) {
      this.cls = [];
      this.cls._map = {};
      this.onchange = onchange || noop;
      this.prefix = '';
    }

    Tools.extend(ClassList.prototype, {
      /**
       * Adds a new class to the class list.
       *
       * @method add
       * @param {String} cls Class to be added.
       * @return {tinymce.ui.ClassList} Current class list instance.
       */
      add: function (cls) {
        if (cls && !this.contains(cls)) {
          this.cls._map[cls] = true;
          this.cls.push(cls);
          this._change();
        }

        return this;
      },

      /**
       * Removes the specified class from the class list.
       *
       * @method remove
       * @param {String} cls Class to be removed.
       * @return {tinymce.ui.ClassList} Current class list instance.
       */
      remove: function (cls) {
        if (this.contains(cls)) {
          for (var i = 0; i < this.cls.length; i++) {
            if (this.cls[i] === cls) {
              break;
            }
          }

          this.cls.splice(i, 1);
          delete this.cls._map[cls];
          this._change();
        }

        return this;
      },

      /**
       * Toggles a class in the class list.
       *
       * @method toggle
       * @param {String} cls Class to be added/removed.
       * @param {Boolean} state Optional state if it should be added/removed.
       * @return {tinymce.ui.ClassList} Current class list instance.
       */
      toggle: function (cls, state) {
        var curState = this.contains(cls);

        if (curState !== state) {
          if (curState) {
            this.remove(cls);
          } else {
            this.add(cls);
          }

          this._change();
        }

        return this;
      },

      /**
       * Returns true if the class list has the specified class.
       *
       * @method contains
       * @param {String} cls Class to look for.
       * @return {Boolean} true/false if the class exists or not.
       */
      contains: function (cls) {
        return !!this.cls._map[cls];
      },

      /**
       * Returns a space separated list of classes.
       *
       * @method toString
       * @return {String} Space separated list of classes.
       */

      _change: function () {
        delete this.clsValue;
        this.onchange.call(this);
      }
    });

    // IE 8 compatibility
    ClassList.prototype.toString = function () {
      var value;

      if (this.clsValue) {
        return this.clsValue;
      }

      value = '';
      for (var i = 0; i < this.cls.length; i++) {
        if (i > 0) {
          value += ' ';
        }

        value += this.prefix + this.cls[i];
      }

      return value;
    };

    return ClassList;
  }
);
/**
 * ReflowQueue.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class will automatically reflow controls on the next animation frame within a few milliseconds on older browsers.
 * If the user manually reflows then the automatic reflow will be cancelled. This class is used internally when various control states
 * changes that triggers a reflow.
 *
 * @class tinymce.ui.ReflowQueue
 * @static
 */
define(
  'tinymce.core.ui.ReflowQueue',
  [
    "tinymce.core.util.Delay"
  ],
  function (Delay) {
    var dirtyCtrls = {}, animationFrameRequested;

    return {
      /**
       * Adds a control to the next automatic reflow call. This is the control that had a state
       * change for example if the control was hidden/shown.
       *
       * @method add
       * @param {tinymce.ui.Control} ctrl Control to add to queue.
       */
      add: function (ctrl) {
        var parent = ctrl.parent();

        if (parent) {
          if (!parent._layout || parent._layout.isNative()) {
            return;
          }

          if (!dirtyCtrls[parent._id]) {
            dirtyCtrls[parent._id] = parent;
          }

          if (!animationFrameRequested) {
            animationFrameRequested = true;

            Delay.requestAnimationFrame(function () {
              var id, ctrl;

              animationFrameRequested = false;

              for (id in dirtyCtrls) {
                ctrl = dirtyCtrls[id];

                if (ctrl.state.get('rendered')) {
                  ctrl.reflow();
                }
              }

              dirtyCtrls = {};
            }, document.body);
          }
        }
      },

      /**
       * Removes the specified control from the automatic reflow. This will happen when for example the user
       * manually triggers a reflow.
       *
       * @method remove
       * @param {tinymce.ui.Control} ctrl Control to remove from queue.
       */
      remove: function (ctrl) {
        if (dirtyCtrls[ctrl._id]) {
          delete dirtyCtrls[ctrl._id];
        }
      }
    };
  }
);

/**
 * Control.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*eslint consistent-this:0 */

/**
 * This is the base class for all controls and containers. All UI control instances inherit
 * from this one as it has the base logic needed by all of them.
 *
 * @class tinymce.ui.Control
 */
define(
  'tinymce.core.ui.Control',
  [
    "tinymce.core.util.Class",
    "tinymce.core.util.Tools",
    "tinymce.core.util.EventDispatcher",
    "tinymce.core.data.ObservableObject",
    "tinymce.core.ui.Collection",
    "tinymce.core.ui.DomUtils",
    "tinymce.core.dom.DomQuery",
    "tinymce.core.ui.BoxUtils",
    "tinymce.core.ui.ClassList",
    "tinymce.core.ui.ReflowQueue"
  ],
  function (Class, Tools, EventDispatcher, ObservableObject, Collection, DomUtils, $, BoxUtils, ClassList, ReflowQueue) {
    "use strict";

    var hasMouseWheelEventSupport = "onmousewheel" in document;
    var hasWheelEventSupport = false;
    var classPrefix = "mce-";
    var Control, idCounter = 0;

    var proto = {
      Statics: {
        classPrefix: classPrefix
      },

      isRtl: function () {
        return Control.rtl;
      },

      /**
       * Class/id prefix to use for all controls.
       *
       * @final
       * @field {String} classPrefix
       */
      classPrefix: classPrefix,

      /**
       * Constructs a new control instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {String} style Style CSS properties to add.
       * @setting {String} border Border box values example: 1 1 1 1
       * @setting {String} padding Padding box values example: 1 1 1 1
       * @setting {String} margin Margin box values example: 1 1 1 1
       * @setting {Number} minWidth Minimal width for the control.
       * @setting {Number} minHeight Minimal height for the control.
       * @setting {String} classes Space separated list of classes to add.
       * @setting {String} role WAI-ARIA role to use for control.
       * @setting {Boolean} hidden Is the control hidden by default.
       * @setting {Boolean} disabled Is the control disabled by default.
       * @setting {String} name Name of the control instance.
       */
      init: function (settings) {
        var self = this, classes, defaultClasses;

        function applyClasses(classes) {
          var i;

          classes = classes.split(' ');
          for (i = 0; i < classes.length; i++) {
            self.classes.add(classes[i]);
          }
        }

        self.settings = settings = Tools.extend({}, self.Defaults, settings);

        // Initial states
        self._id = settings.id || ('mceu_' + (idCounter++));
        self._aria = { role: settings.role };
        self._elmCache = {};
        self.$ = $;

        self.state = new ObservableObject({
          visible: true,
          active: false,
          disabled: false,
          value: ''
        });

        self.data = new ObservableObject(settings.data);

        self.classes = new ClassList(function () {
          if (self.state.get('rendered')) {
            self.getEl().className = this.toString();
          }
        });
        self.classes.prefix = self.classPrefix;

        // Setup classes
        classes = settings.classes;
        if (classes) {
          if (self.Defaults) {
            defaultClasses = self.Defaults.classes;

            if (defaultClasses && classes != defaultClasses) {
              applyClasses(defaultClasses);
            }
          }

          applyClasses(classes);
        }

        Tools.each('title text name visible disabled active value'.split(' '), function (name) {
          if (name in settings) {
            self[name](settings[name]);
          }
        });

        self.on('click', function () {
          if (self.disabled()) {
            return false;
          }
        });

        /**
         * Name/value object with settings for the current control.
         *
         * @field {Object} settings
         */
        self.settings = settings;

        self.borderBox = BoxUtils.parseBox(settings.border);
        self.paddingBox = BoxUtils.parseBox(settings.padding);
        self.marginBox = BoxUtils.parseBox(settings.margin);

        if (settings.hidden) {
          self.hide();
        }
      },

      // Will generate getter/setter methods for these properties
      Properties: 'parent,name',

      /**
       * Returns the root element to render controls into.
       *
       * @method getContainerElm
       * @return {Element} HTML DOM element to render into.
       */
      getContainerElm: function () {
        return DomUtils.getContainer();
      },

      /**
       * Returns a control instance for the current DOM element.
       *
       * @method getParentCtrl
       * @param {Element} elm HTML dom element to get parent control from.
       * @return {tinymce.ui.Control} Control instance or undefined.
       */
      getParentCtrl: function (elm) {
        var ctrl, lookup = this.getRoot().controlIdLookup;

        while (elm && lookup) {
          ctrl = lookup[elm.id];
          if (ctrl) {
            break;
          }

          elm = elm.parentNode;
        }

        return ctrl;
      },

      /**
       * Initializes the current controls layout rect.
       * This will be executed by the layout managers to determine the
       * default minWidth/minHeight etc.
       *
       * @method initLayoutRect
       * @return {Object} Layout rect instance.
       */
      initLayoutRect: function () {
        var self = this, settings = self.settings, borderBox, layoutRect;
        var elm = self.getEl(), width, height, minWidth, minHeight, autoResize;
        var startMinWidth, startMinHeight, initialSize;

        // Measure the current element
        borderBox = self.borderBox = self.borderBox || BoxUtils.measureBox(elm, 'border');
        self.paddingBox = self.paddingBox || BoxUtils.measureBox(elm, 'padding');
        self.marginBox = self.marginBox || BoxUtils.measureBox(elm, 'margin');
        initialSize = DomUtils.getSize(elm);

        // Setup minWidth/minHeight and width/height
        startMinWidth = settings.minWidth;
        startMinHeight = settings.minHeight;
        minWidth = startMinWidth || initialSize.width;
        minHeight = startMinHeight || initialSize.height;
        width = settings.width;
        height = settings.height;
        autoResize = settings.autoResize;
        autoResize = typeof autoResize != "undefined" ? autoResize : !width && !height;

        width = width || minWidth;
        height = height || minHeight;

        var deltaW = borderBox.left + borderBox.right;
        var deltaH = borderBox.top + borderBox.bottom;

        var maxW = settings.maxWidth || 0xFFFF;
        var maxH = settings.maxHeight || 0xFFFF;

        // Setup initial layout rect
        self._layoutRect = layoutRect = {
          x: settings.x || 0,
          y: settings.y || 0,
          w: width,
          h: height,
          deltaW: deltaW,
          deltaH: deltaH,
          contentW: width - deltaW,
          contentH: height - deltaH,
          innerW: width - deltaW,
          innerH: height - deltaH,
          startMinWidth: startMinWidth || 0,
          startMinHeight: startMinHeight || 0,
          minW: Math.min(minWidth, maxW),
          minH: Math.min(minHeight, maxH),
          maxW: maxW,
          maxH: maxH,
          autoResize: autoResize,
          scrollW: 0
        };

        self._lastLayoutRect = {};

        return layoutRect;
      },

      /**
       * Getter/setter for the current layout rect.
       *
       * @method layoutRect
       * @param {Object} [newRect] Optional new layout rect.
       * @return {tinymce.ui.Control/Object} Current control or rect object.
       */
      layoutRect: function (newRect) {
        var self = this, curRect = self._layoutRect, lastLayoutRect, size, deltaWidth, deltaHeight, undef, repaintControls;

        // Initialize default layout rect
        if (!curRect) {
          curRect = self.initLayoutRect();
        }

        // Set new rect values
        if (newRect) {
          // Calc deltas between inner and outer sizes
          deltaWidth = curRect.deltaW;
          deltaHeight = curRect.deltaH;

          // Set x position
          if (newRect.x !== undef) {
            curRect.x = newRect.x;
          }

          // Set y position
          if (newRect.y !== undef) {
            curRect.y = newRect.y;
          }

          // Set minW
          if (newRect.minW !== undef) {
            curRect.minW = newRect.minW;
          }

          // Set minH
          if (newRect.minH !== undef) {
            curRect.minH = newRect.minH;
          }

          // Set new width and calculate inner width
          size = newRect.w;
          if (size !== undef) {
            size = size < curRect.minW ? curRect.minW : size;
            size = size > curRect.maxW ? curRect.maxW : size;
            curRect.w = size;
            curRect.innerW = size - deltaWidth;
          }

          // Set new height and calculate inner height
          size = newRect.h;
          if (size !== undef) {
            size = size < curRect.minH ? curRect.minH : size;
            size = size > curRect.maxH ? curRect.maxH : size;
            curRect.h = size;
            curRect.innerH = size - deltaHeight;
          }

          // Set new inner width and calculate width
          size = newRect.innerW;
          if (size !== undef) {
            size = size < curRect.minW - deltaWidth ? curRect.minW - deltaWidth : size;
            size = size > curRect.maxW - deltaWidth ? curRect.maxW - deltaWidth : size;
            curRect.innerW = size;
            curRect.w = size + deltaWidth;
          }

          // Set new height and calculate inner height
          size = newRect.innerH;
          if (size !== undef) {
            size = size < curRect.minH - deltaHeight ? curRect.minH - deltaHeight : size;
            size = size > curRect.maxH - deltaHeight ? curRect.maxH - deltaHeight : size;
            curRect.innerH = size;
            curRect.h = size + deltaHeight;
          }

          // Set new contentW
          if (newRect.contentW !== undef) {
            curRect.contentW = newRect.contentW;
          }

          // Set new contentH
          if (newRect.contentH !== undef) {
            curRect.contentH = newRect.contentH;
          }

          // Compare last layout rect with the current one to see if we need to repaint or not
          lastLayoutRect = self._lastLayoutRect;
          if (lastLayoutRect.x !== curRect.x || lastLayoutRect.y !== curRect.y ||
            lastLayoutRect.w !== curRect.w || lastLayoutRect.h !== curRect.h) {
            repaintControls = Control.repaintControls;

            if (repaintControls) {
              if (repaintControls.map && !repaintControls.map[self._id]) {
                repaintControls.push(self);
                repaintControls.map[self._id] = true;
              }
            }

            lastLayoutRect.x = curRect.x;
            lastLayoutRect.y = curRect.y;
            lastLayoutRect.w = curRect.w;
            lastLayoutRect.h = curRect.h;
          }

          return self;
        }

        return curRect;
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this, style, bodyStyle, bodyElm, rect, borderBox;
        var borderW, borderH, lastRepaintRect, round, value;

        // Use Math.round on all values on IE < 9
        round = !document.createRange ? Math.round : function (value) {
          return value;
        };

        style = self.getEl().style;
        rect = self._layoutRect;
        lastRepaintRect = self._lastRepaintRect || {};

        borderBox = self.borderBox;
        borderW = borderBox.left + borderBox.right;
        borderH = borderBox.top + borderBox.bottom;

        if (rect.x !== lastRepaintRect.x) {
          style.left = round(rect.x) + 'px';
          lastRepaintRect.x = rect.x;
        }

        if (rect.y !== lastRepaintRect.y) {
          style.top = round(rect.y) + 'px';
          lastRepaintRect.y = rect.y;
        }

        if (rect.w !== lastRepaintRect.w) {
          value = round(rect.w - borderW);
          style.width = (value >= 0 ? value : 0) + 'px';
          lastRepaintRect.w = rect.w;
        }

        if (rect.h !== lastRepaintRect.h) {
          value = round(rect.h - borderH);
          style.height = (value >= 0 ? value : 0) + 'px';
          lastRepaintRect.h = rect.h;
        }

        // Update body if needed
        if (self._hasBody && rect.innerW !== lastRepaintRect.innerW) {
          value = round(rect.innerW);

          bodyElm = self.getEl('body');
          if (bodyElm) {
            bodyStyle = bodyElm.style;
            bodyStyle.width = (value >= 0 ? value : 0) + 'px';
          }

          lastRepaintRect.innerW = rect.innerW;
        }

        if (self._hasBody && rect.innerH !== lastRepaintRect.innerH) {
          value = round(rect.innerH);

          bodyElm = bodyElm || self.getEl('body');
          if (bodyElm) {
            bodyStyle = bodyStyle || bodyElm.style;
            bodyStyle.height = (value >= 0 ? value : 0) + 'px';
          }

          lastRepaintRect.innerH = rect.innerH;
        }

        self._lastRepaintRect = lastRepaintRect;
        self.fire('repaint', {}, false);
      },

      /**
       * Updates the controls layout rect by re-measuing it.
       */
      updateLayoutRect: function () {
        var self = this;

        self.parent()._lastRect = null;

        DomUtils.css(self.getEl(), { width: '', height: '' });

        self._layoutRect = self._lastRepaintRect = self._lastLayoutRect = null;
        self.initLayoutRect();
      },

      /**
       * Binds a callback to the specified event. This event can both be
       * native browser events like "click" or custom ones like PostRender.
       *
       * The callback function will be passed a DOM event like object that enables yout do stop propagation.
       *
       * @method on
       * @param {String} name Name of the event to bind. For example "click".
       * @param {String/function} callback Callback function to execute ones the event occurs.
       * @return {tinymce.ui.Control} Current control object.
       */
      on: function (name, callback) {
        var self = this;

        function resolveCallbackName(name) {
          var callback, scope;

          if (typeof name != 'string') {
            return name;
          }

          return function (e) {
            if (!callback) {
              self.parentsAndSelf().each(function (ctrl) {
                var callbacks = ctrl.settings.callbacks;

                if (callbacks && (callback = callbacks[name])) {
                  scope = ctrl;
                  return false;
                }
              });
            }

            if (!callback) {
              e.action = name;
              this.fire('execute', e);
              return;
            }

            return callback.call(scope, e);
          };
        }

        getEventDispatcher(self).on(name, resolveCallbackName(callback));

        return self;
      },

      /**
       * Unbinds the specified event and optionally a specific callback. If you omit the name
       * parameter all event handlers will be removed. If you omit the callback all event handles
       * by the specified name will be removed.
       *
       * @method off
       * @param {String} [name] Name for the event to unbind.
       * @param {function} [callback] Callback function to unbind.
       * @return {tinymce.ui.Control} Current control object.
       */
      off: function (name, callback) {
        getEventDispatcher(this).off(name, callback);
        return this;
      },

      /**
       * Fires the specified event by name and arguments on the control. This will execute all
       * bound event handlers.
       *
       * @method fire
       * @param {String} name Name of the event to fire.
       * @param {Object} [args] Arguments to pass to the event.
       * @param {Boolean} [bubble] Value to control bubbling. Defaults to true.
       * @return {Object} Current arguments object.
       */
      fire: function (name, args, bubble) {
        var self = this;

        args = args || {};

        if (!args.control) {
          args.control = self;
        }

        args = getEventDispatcher(self).fire(name, args);

        // Bubble event up to parents
        if (bubble !== false && self.parent) {
          var parent = self.parent();
          while (parent && !args.isPropagationStopped()) {
            parent.fire(name, args, false);
            parent = parent.parent();
          }
        }

        return args;
      },

      /**
       * Returns true/false if the specified event has any listeners.
       *
       * @method hasEventListeners
       * @param {String} name Name of the event to check for.
       * @return {Boolean} True/false state if the event has listeners.
       */
      hasEventListeners: function (name) {
        return getEventDispatcher(this).has(name);
      },

      /**
       * Returns a control collection with all parent controls.
       *
       * @method parents
       * @param {String} selector Optional selector expression to find parents.
       * @return {tinymce.ui.Collection} Collection with all parent controls.
       */
      parents: function (selector) {
        var self = this, ctrl, parents = new Collection();

        // Add each parent to collection
        for (ctrl = self.parent(); ctrl; ctrl = ctrl.parent()) {
          parents.add(ctrl);
        }

        // Filter away everything that doesn't match the selector
        if (selector) {
          parents = parents.filter(selector);
        }

        return parents;
      },

      /**
       * Returns the current control and it's parents.
       *
       * @method parentsAndSelf
       * @param {String} selector Optional selector expression to find parents.
       * @return {tinymce.ui.Collection} Collection with all parent controls.
       */
      parentsAndSelf: function (selector) {
        return new Collection(this).add(this.parents(selector));
      },

      /**
       * Returns the control next to the current control.
       *
       * @method next
       * @return {tinymce.ui.Control} Next control instance.
       */
      next: function () {
        var parentControls = this.parent().items();

        return parentControls[parentControls.indexOf(this) + 1];
      },

      /**
       * Returns the control previous to the current control.
       *
       * @method prev
       * @return {tinymce.ui.Control} Previous control instance.
       */
      prev: function () {
        var parentControls = this.parent().items();

        return parentControls[parentControls.indexOf(this) - 1];
      },

      /**
       * Sets the inner HTML of the control element.
       *
       * @method innerHtml
       * @param {String} html Html string to set as inner html.
       * @return {tinymce.ui.Control} Current control object.
       */
      innerHtml: function (html) {
        this.$el.html(html);
        return this;
      },

      /**
       * Returns the control DOM element or sub element.
       *
       * @method getEl
       * @param {String} [suffix] Suffix to get element by.
       * @return {Element} HTML DOM element for the current control or it's children.
       */
      getEl: function (suffix) {
        var id = suffix ? this._id + '-' + suffix : this._id;

        if (!this._elmCache[id]) {
          this._elmCache[id] = $('#' + id)[0];
        }

        return this._elmCache[id];
      },

      /**
       * Sets the visible state to true.
       *
       * @method show
       * @return {tinymce.ui.Control} Current control instance.
       */
      show: function () {
        return this.visible(true);
      },

      /**
       * Sets the visible state to false.
       *
       * @method hide
       * @return {tinymce.ui.Control} Current control instance.
       */
      hide: function () {
        return this.visible(false);
      },

      /**
       * Focuses the current control.
       *
       * @method focus
       * @return {tinymce.ui.Control} Current control instance.
       */
      focus: function () {
        try {
          this.getEl().focus();
        } catch (ex) {
          // Ignore IE error
        }

        return this;
      },

      /**
       * Blurs the current control.
       *
       * @method blur
       * @return {tinymce.ui.Control} Current control instance.
       */
      blur: function () {
        this.getEl().blur();

        return this;
      },

      /**
       * Sets the specified aria property.
       *
       * @method aria
       * @param {String} name Name of the aria property to set.
       * @param {String} value Value of the aria property.
       * @return {tinymce.ui.Control} Current control instance.
       */
      aria: function (name, value) {
        var self = this, elm = self.getEl(self.ariaTarget);

        if (typeof value === "undefined") {
          return self._aria[name];
        }

        self._aria[name] = value;

        if (self.state.get('rendered')) {
          elm.setAttribute(name == 'role' ? name : 'aria-' + name, value);
        }

        return self;
      },

      /**
       * Encodes the specified string with HTML entities. It will also
       * translate the string to different languages.
       *
       * @method encode
       * @param {String/Object/Array} text Text to entity encode.
       * @param {Boolean} [translate=true] False if the contents shouldn't be translated.
       * @return {String} Encoded and possible traslated string.
       */
      encode: function (text, translate) {
        if (translate !== false) {
          text = this.translate(text);
        }

        return (text || '').replace(/[&<>"]/g, function (match) {
          return '&#' + match.charCodeAt(0) + ';';
        });
      },

      /**
       * Returns the translated string.
       *
       * @method translate
       * @param {String} text Text to translate.
       * @return {String} Translated string or the same as the input.
       */
      translate: function (text) {
        return Control.translate ? Control.translate(text) : text;
      },

      /**
       * Adds items before the current control.
       *
       * @method before
       * @param {Array/tinymce.ui.Collection} items Array of items to prepend before this control.
       * @return {tinymce.ui.Control} Current control instance.
       */
      before: function (items) {
        var self = this, parent = self.parent();

        if (parent) {
          parent.insert(items, parent.items().indexOf(self), true);
        }

        return self;
      },

      /**
       * Adds items after the current control.
       *
       * @method after
       * @param {Array/tinymce.ui.Collection} items Array of items to append after this control.
       * @return {tinymce.ui.Control} Current control instance.
       */
      after: function (items) {
        var self = this, parent = self.parent();

        if (parent) {
          parent.insert(items, parent.items().indexOf(self));
        }

        return self;
      },

      /**
       * Removes the current control from DOM and from UI collections.
       *
       * @method remove
       * @return {tinymce.ui.Control} Current control instance.
       */
      remove: function () {
        var self = this, elm = self.getEl(), parent = self.parent(), newItems, i;

        if (self.items) {
          var controls = self.items().toArray();
          i = controls.length;
          while (i--) {
            controls[i].remove();
          }
        }

        if (parent && parent.items) {
          newItems = [];

          parent.items().each(function (item) {
            if (item !== self) {
              newItems.push(item);
            }
          });

          parent.items().set(newItems);
          parent._lastRect = null;
        }

        if (self._eventsRoot && self._eventsRoot == self) {
          $(elm).off();
        }

        var lookup = self.getRoot().controlIdLookup;
        if (lookup) {
          delete lookup[self._id];
        }

        if (elm && elm.parentNode) {
          elm.parentNode.removeChild(elm);
        }

        self.state.set('rendered', false);
        self.state.destroy();

        self.fire('remove');

        return self;
      },

      /**
       * Renders the control before the specified element.
       *
       * @method renderBefore
       * @param {Element} elm Element to render before.
       * @return {tinymce.ui.Control} Current control instance.
       */
      renderBefore: function (elm) {
        $(elm).before(this.renderHtml());
        this.postRender();
        return this;
      },

      /**
       * Renders the control to the specified element.
       *
       * @method renderBefore
       * @param {Element} elm Element to render to.
       * @return {tinymce.ui.Control} Current control instance.
       */
      renderTo: function (elm) {
        $(elm || this.getContainerElm()).append(this.renderHtml());
        this.postRender();
        return this;
      },

      preRender: function () {
      },

      render: function () {
      },

      renderHtml: function () {
        return '<div id="' + this._id + '" class="' + this.classes + '"></div>';
      },

      /**
       * Post render method. Called after the control has been rendered to the target.
       *
       * @method postRender
       * @return {tinymce.ui.Control} Current control instance.
       */
      postRender: function () {
        var self = this, settings = self.settings, elm, box, parent, name, parentEventsRoot;

        self.$el = $(self.getEl());
        self.state.set('rendered', true);

        // Bind on<event> settings
        for (name in settings) {
          if (name.indexOf("on") === 0) {
            self.on(name.substr(2), settings[name]);
          }
        }

        if (self._eventsRoot) {
          for (parent = self.parent(); !parentEventsRoot && parent; parent = parent.parent()) {
            parentEventsRoot = parent._eventsRoot;
          }

          if (parentEventsRoot) {
            for (name in parentEventsRoot._nativeEvents) {
              self._nativeEvents[name] = true;
            }
          }
        }

        bindPendingEvents(self);

        if (settings.style) {
          elm = self.getEl();
          if (elm) {
            elm.setAttribute('style', settings.style);
            elm.style.cssText = settings.style;
          }
        }

        if (self.settings.border) {
          box = self.borderBox;
          self.$el.css({
            'border-top-width': box.top,
            'border-right-width': box.right,
            'border-bottom-width': box.bottom,
            'border-left-width': box.left
          });
        }

        // Add instance to lookup
        var root = self.getRoot();
        if (!root.controlIdLookup) {
          root.controlIdLookup = {};
        }

        root.controlIdLookup[self._id] = self;

        for (var key in self._aria) {
          self.aria(key, self._aria[key]);
        }

        if (self.state.get('visible') === false) {
          self.getEl().style.display = 'none';
        }

        self.bindStates();

        self.state.on('change:visible', function (e) {
          var state = e.value, parentCtrl;

          if (self.state.get('rendered')) {
            self.getEl().style.display = state === false ? 'none' : '';

            // Need to force a reflow here on IE 8
            self.getEl().getBoundingClientRect();
          }

          // Parent container needs to reflow
          parentCtrl = self.parent();
          if (parentCtrl) {
            parentCtrl._lastRect = null;
          }

          self.fire(state ? 'show' : 'hide');

          ReflowQueue.add(self);
        });

        self.fire('postrender', {}, false);
      },

      bindStates: function () {
      },

      /**
       * Scrolls the current control into view.
       *
       * @method scrollIntoView
       * @param {String} align Alignment in view top|center|bottom.
       * @return {tinymce.ui.Control} Current control instance.
       */
      scrollIntoView: function (align) {
        function getOffset(elm, rootElm) {
          var x, y, parent = elm;

          x = y = 0;
          while (parent && parent != rootElm && parent.nodeType) {
            x += parent.offsetLeft || 0;
            y += parent.offsetTop || 0;
            parent = parent.offsetParent;
          }

          return { x: x, y: y };
        }

        var elm = this.getEl(), parentElm = elm.parentNode;
        var x, y, width, height, parentWidth, parentHeight;
        var pos = getOffset(elm, parentElm);

        x = pos.x;
        y = pos.y;
        width = elm.offsetWidth;
        height = elm.offsetHeight;
        parentWidth = parentElm.clientWidth;
        parentHeight = parentElm.clientHeight;

        if (align == "end") {
          x -= parentWidth - width;
          y -= parentHeight - height;
        } else if (align == "center") {
          x -= (parentWidth / 2) - (width / 2);
          y -= (parentHeight / 2) - (height / 2);
        }

        parentElm.scrollLeft = x;
        parentElm.scrollTop = y;

        return this;
      },

      getRoot: function () {
        var ctrl = this, rootControl, parents = [];

        while (ctrl) {
          if (ctrl.rootControl) {
            rootControl = ctrl.rootControl;
            break;
          }

          parents.push(ctrl);
          rootControl = ctrl;
          ctrl = ctrl.parent();
        }

        if (!rootControl) {
          rootControl = this;
        }

        var i = parents.length;
        while (i--) {
          parents[i].rootControl = rootControl;
        }

        return rootControl;
      },

      /**
       * Reflows the current control and it's parents.
       * This should be used after you for example append children to the current control so
       * that the layout managers know that they need to reposition everything.
       *
       * @example
       * container.append({type: 'button', text: 'My button'}).reflow();
       *
       * @method reflow
       * @return {tinymce.ui.Control} Current control instance.
       */
      reflow: function () {
        ReflowQueue.remove(this);

        var parent = this.parent();
        if (parent && parent._layout && !parent._layout.isNative()) {
          parent.reflow();
        }

        return this;
      }

      /**
       * Sets/gets the parent container for the control.
       *
       * @method parent
       * @param {tinymce.ui.Container} parent Optional parent to set.
       * @return {tinymce.ui.Control} Parent control or the current control on a set action.
       */
      // parent: function(parent) {} -- Generated

      /**
       * Sets/gets the text for the control.
       *
       * @method text
       * @param {String} value Value to set to control.
       * @return {String/tinymce.ui.Control} Current control on a set operation or current value on a get.
       */
      // text: function(value) {} -- Generated

      /**
       * Sets/gets the disabled state on the control.
       *
       * @method disabled
       * @param {Boolean} state Value to set to control.
       * @return {Boolean/tinymce.ui.Control} Current control on a set operation or current state on a get.
       */
      // disabled: function(state) {} -- Generated

      /**
       * Sets/gets the active for the control.
       *
       * @method active
       * @param {Boolean} state Value to set to control.
       * @return {Boolean/tinymce.ui.Control} Current control on a set operation or current state on a get.
       */
      // active: function(state) {} -- Generated

      /**
       * Sets/gets the name for the control.
       *
       * @method name
       * @param {String} value Value to set to control.
       * @return {String/tinymce.ui.Control} Current control on a set operation or current value on a get.
       */
      // name: function(value) {} -- Generated

      /**
       * Sets/gets the title for the control.
       *
       * @method title
       * @param {String} value Value to set to control.
       * @return {String/tinymce.ui.Control} Current control on a set operation or current value on a get.
       */
      // title: function(value) {} -- Generated

      /**
       * Sets/gets the visible for the control.
       *
       * @method visible
       * @param {Boolean} state Value to set to control.
       * @return {Boolean/tinymce.ui.Control} Current control on a set operation or current state on a get.
       */
      // visible: function(value) {} -- Generated
    };

    /**
     * Setup state properties.
     */
    Tools.each('text title visible disabled active value'.split(' '), function (name) {
      proto[name] = function (value) {
        if (arguments.length === 0) {
          return this.state.get(name);
        }

        if (typeof value != "undefined") {
          this.state.set(name, value);
        }

        return this;
      };
    });

    Control = Class.extend(proto);

    function getEventDispatcher(obj) {
      if (!obj._eventDispatcher) {
        obj._eventDispatcher = new EventDispatcher({
          scope: obj,
          toggleEvent: function (name, state) {
            if (state && EventDispatcher.isNative(name)) {
              if (!obj._nativeEvents) {
                obj._nativeEvents = {};
              }

              obj._nativeEvents[name] = true;

              if (obj.state.get('rendered')) {
                bindPendingEvents(obj);
              }
            }
          }
        });
      }

      return obj._eventDispatcher;
    }

    function bindPendingEvents(eventCtrl) {
      var i, l, parents, eventRootCtrl, nativeEvents, name;

      function delegate(e) {
        var control = eventCtrl.getParentCtrl(e.target);

        if (control) {
          control.fire(e.type, e);
        }
      }

      function mouseLeaveHandler() {
        var ctrl = eventRootCtrl._lastHoverCtrl;

        if (ctrl) {
          ctrl.fire("mouseleave", { target: ctrl.getEl() });

          ctrl.parents().each(function (ctrl) {
            ctrl.fire("mouseleave", { target: ctrl.getEl() });
          });

          eventRootCtrl._lastHoverCtrl = null;
        }
      }

      function mouseEnterHandler(e) {
        var ctrl = eventCtrl.getParentCtrl(e.target), lastCtrl = eventRootCtrl._lastHoverCtrl, idx = 0, i, parents, lastParents;

        // Over on a new control
        if (ctrl !== lastCtrl) {
          eventRootCtrl._lastHoverCtrl = ctrl;

          parents = ctrl.parents().toArray().reverse();
          parents.push(ctrl);

          if (lastCtrl) {
            lastParents = lastCtrl.parents().toArray().reverse();
            lastParents.push(lastCtrl);

            for (idx = 0; idx < lastParents.length; idx++) {
              if (parents[idx] !== lastParents[idx]) {
                break;
              }
            }

            for (i = lastParents.length - 1; i >= idx; i--) {
              lastCtrl = lastParents[i];
              lastCtrl.fire("mouseleave", {
                target: lastCtrl.getEl()
              });
            }
          }

          for (i = idx; i < parents.length; i++) {
            ctrl = parents[i];
            ctrl.fire("mouseenter", {
              target: ctrl.getEl()
            });
          }
        }
      }

      function fixWheelEvent(e) {
        e.preventDefault();

        if (e.type == "mousewheel") {
          e.deltaY = -1 / 40 * e.wheelDelta;

          if (e.wheelDeltaX) {
            e.deltaX = -1 / 40 * e.wheelDeltaX;
          }
        } else {
          e.deltaX = 0;
          e.deltaY = e.detail;
        }

        e = eventCtrl.fire("wheel", e);
      }

      nativeEvents = eventCtrl._nativeEvents;
      if (nativeEvents) {
        // Find event root element if it exists
        parents = eventCtrl.parents().toArray();
        parents.unshift(eventCtrl);
        for (i = 0, l = parents.length; !eventRootCtrl && i < l; i++) {
          eventRootCtrl = parents[i]._eventsRoot;
        }

        // Event root wasn't found the use the root control
        if (!eventRootCtrl) {
          eventRootCtrl = parents[parents.length - 1] || eventCtrl;
        }

        // Set the eventsRoot property on children that didn't have it
        eventCtrl._eventsRoot = eventRootCtrl;
        for (l = i, i = 0; i < l; i++) {
          parents[i]._eventsRoot = eventRootCtrl;
        }

        var eventRootDelegates = eventRootCtrl._delegates;
        if (!eventRootDelegates) {
          eventRootDelegates = eventRootCtrl._delegates = {};
        }

        // Bind native event delegates
        for (name in nativeEvents) {
          if (!nativeEvents) {
            return false;
          }

          if (name === "wheel" && !hasWheelEventSupport) {
            if (hasMouseWheelEventSupport) {
              $(eventCtrl.getEl()).on("mousewheel", fixWheelEvent);
            } else {
              $(eventCtrl.getEl()).on("DOMMouseScroll", fixWheelEvent);
            }

            continue;
          }

          // Special treatment for mousenter/mouseleave since these doesn't bubble
          if (name === "mouseenter" || name === "mouseleave") {
            // Fake mousenter/mouseleave
            if (!eventRootCtrl._hasMouseEnter) {
              $(eventRootCtrl.getEl()).on("mouseleave", mouseLeaveHandler).on("mouseover", mouseEnterHandler);
              eventRootCtrl._hasMouseEnter = 1;
            }
          } else if (!eventRootDelegates[name]) {
            $(eventRootCtrl.getEl()).on(name, delegate);
            eventRootDelegates[name] = true;
          }

          // Remove the event once it's bound
          nativeEvents[name] = false;
        }
      }
    }

    return Control;
  }
);

/**
 * Factory.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is a factory for control instances. This enables you
 * to create instances of controls without having to require the UI controls directly.
 *
 * It also allow you to override or add new control types.
 *
 * @class tinymce.ui.Factory
 */
define(
  'tinymce.core.ui.Factory',
  [
  ],
  function () {
    "use strict";

    var types = {};

    return {
      /**
       * Adds a new control instance type to the factory.
       *
       * @method add
       * @param {String} type Type name for example "button".
       * @param {function} typeClass Class type function.
       */
      add: function (type, typeClass) {
        types[type.toLowerCase()] = typeClass;
      },

      /**
       * Returns true/false if the specified type exists or not.
       *
       * @method has
       * @param {String} type Type to look for.
       * @return {Boolean} true/false if the control by name exists.
       */
      has: function (type) {
        return !!types[type.toLowerCase()];
      },

      /**
       * Creates a new control instance based on the settings provided. The instance created will be
       * based on the specified type property it can also create whole structures of components out of
       * the specified JSON object.
       *
       * @example
       * tinymce.ui.Factory.create({
       *     type: 'button',
       *     text: 'Hello world!'
       * });
       *
       * @method create
       * @param {Object/String} settings Name/Value object with items used to create the type.
       * @return {tinymce.ui.Control} Control instance based on the specified type.
       */
      create: function (type, settings) {
        var ControlType;

        // If string is specified then use it as the type
        if (typeof type == 'string') {
          settings = settings || {};
          settings.type = type;
        } else {
          settings = type;
          type = settings.type;
        }

        // Find control type
        type = type.toLowerCase();
        ControlType = types[type];

        // #if debug

        if (!ControlType) {
          throw new Error("Could not find control by type: " + type);
        }

        // #endif

        ControlType = new ControlType(settings);
        ControlType.type = type; // Set the type on the instance, this will be used by the Selector engine

        return ControlType;
      }
    };
  }
);
/**
 * KeyboardNavigation.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles keyboard navigation of controls and elements.
 *
 * @class tinymce.ui.KeyboardNavigation
 */
define(
  'tinymce.core.ui.KeyboardNavigation',
  [
  ],
  function () {
    "use strict";

    var hasTabstopData = function (elm) {
      return elm.getAttribute('data-mce-tabstop') ? true : false;
    };

    /**
     * This class handles all keyboard navigation for WAI-ARIA support. Each root container
     * gets an instance of this class.
     *
     * @constructor
     */
    return function (settings) {
      var root = settings.root, focusedElement, focusedControl;

      function isElement(node) {
        return node && node.nodeType === 1;
      }

      try {
        focusedElement = document.activeElement;
      } catch (ex) {
        // IE sometimes fails to return a proper element
        focusedElement = document.body;
      }

      focusedControl = root.getParentCtrl(focusedElement);

      /**
       * Returns the currently focused elements wai aria role of the currently
       * focused element or specified element.
       *
       * @private
       * @param {Element} elm Optional element to get role from.
       * @return {String} Role of specified element.
       */
      function getRole(elm) {
        elm = elm || focusedElement;

        if (isElement(elm)) {
          return elm.getAttribute('role');
        }

        return null;
      }

      /**
       * Returns the wai role of the parent element of the currently
       * focused element or specified element.
       *
       * @private
       * @param {Element} elm Optional element to get parent role from.
       * @return {String} Role of the first parent that has a role.
       */
      function getParentRole(elm) {
        var role, parent = elm || focusedElement;

        while ((parent = parent.parentNode)) {
          if ((role = getRole(parent))) {
            return role;
          }
        }
      }

      /**
       * Returns a wai aria property by name for example aria-selected.
       *
       * @private
       * @param {String} name Name of the aria property to get for example "disabled".
       * @return {String} Aria property value.
       */
      function getAriaProp(name) {
        var elm = focusedElement;

        if (isElement(elm)) {
          return elm.getAttribute('aria-' + name);
        }
      }

      /**
       * Is the element a text input element or not.
       *
       * @private
       * @param {Element} elm Element to check if it's an text input element or not.
       * @return {Boolean} True/false if the element is a text element or not.
       */
      function isTextInputElement(elm) {
        var tagName = elm.tagName.toUpperCase();

        // Notice: since type can be "email" etc we don't check the type
        // So all input elements gets treated as text input elements
        return tagName == "INPUT" || tagName == "TEXTAREA" || tagName == "SELECT";
      }

      /**
       * Returns true/false if the specified element can be focused or not.
       *
       * @private
       * @param {Element} elm DOM element to check if it can be focused or not.
       * @return {Boolean} True/false if the element can have focus.
       */
      function canFocus(elm) {
        if (isTextInputElement(elm) && !elm.hidden) {
          return true;
        }

        if (hasTabstopData(elm)) {
          return true;
        }

        if (/^(button|menuitem|checkbox|tab|menuitemcheckbox|option|gridcell|slider)$/.test(getRole(elm))) {
          return true;
        }

        return false;
      }

      /**
       * Returns an array of focusable visible elements within the specified container element.
       *
       * @private
       * @param {Element} elm DOM element to find focusable elements within.
       * @return {Array} Array of focusable elements.
       */
      function getFocusElements(elm) {
        var elements = [];

        function collect(elm) {
          if (elm.nodeType != 1 || elm.style.display == 'none' || elm.disabled) {
            return;
          }

          if (canFocus(elm)) {
            elements.push(elm);
          }

          for (var i = 0; i < elm.childNodes.length; i++) {
            collect(elm.childNodes[i]);
          }
        }

        collect(elm || root.getEl());

        return elements;
      }

      /**
       * Returns the navigation root control for the specified control. The navigation root
       * is the control that the keyboard navigation gets scoped to for example a menubar or toolbar group.
       * It will look for parents of the specified target control or the currently focused control if this option is omitted.
       *
       * @private
       * @param {tinymce.ui.Control} targetControl Optional target control to find root of.
       * @return {tinymce.ui.Control} Navigation root control.
       */
      function getNavigationRoot(targetControl) {
        var navigationRoot, controls;

        targetControl = targetControl || focusedControl;
        controls = targetControl.parents().toArray();
        controls.unshift(targetControl);

        for (var i = 0; i < controls.length; i++) {
          navigationRoot = controls[i];

          if (navigationRoot.settings.ariaRoot) {
            break;
          }
        }

        return navigationRoot;
      }

      /**
       * Focuses the first item in the specified targetControl element or the last aria index if the
       * navigation root has the ariaRemember option enabled.
       *
       * @private
       * @param {tinymce.ui.Control} targetControl Target control to focus the first item in.
       */
      function focusFirst(targetControl) {
        var navigationRoot = getNavigationRoot(targetControl);
        var focusElements = getFocusElements(navigationRoot.getEl());

        if (navigationRoot.settings.ariaRemember && "lastAriaIndex" in navigationRoot) {
          moveFocusToIndex(navigationRoot.lastAriaIndex, focusElements);
        } else {
          moveFocusToIndex(0, focusElements);
        }
      }

      /**
       * Moves the focus to the specified index within the elements list.
       * This will scope the index to the size of the element list if it changed.
       *
       * @private
       * @param {Number} idx Specified index to move to.
       * @param {Array} elements Array with dom elements to move focus within.
       * @return {Number} Input index or a changed index if it was out of range.
       */
      function moveFocusToIndex(idx, elements) {
        if (idx < 0) {
          idx = elements.length - 1;
        } else if (idx >= elements.length) {
          idx = 0;
        }

        if (elements[idx]) {
          elements[idx].focus();
        }

        return idx;
      }

      /**
       * Moves the focus forwards or backwards.
       *
       * @private
       * @param {Number} dir Direction to move in positive means forward, negative means backwards.
       * @param {Array} elements Optional array of elements to move within defaults to the current navigation roots elements.
       */
      function moveFocus(dir, elements) {
        var idx = -1, navigationRoot = getNavigationRoot();

        elements = elements || getFocusElements(navigationRoot.getEl());

        for (var i = 0; i < elements.length; i++) {
          if (elements[i] === focusedElement) {
            idx = i;
          }
        }

        idx += dir;
        navigationRoot.lastAriaIndex = moveFocusToIndex(idx, elements);
      }

      /**
       * Moves the focus to the left this is called by the left key.
       *
       * @private
       */
      function left() {
        var parentRole = getParentRole();

        if (parentRole == "tablist") {
          moveFocus(-1, getFocusElements(focusedElement.parentNode));
        } else if (focusedControl.parent().submenu) {
          cancel();
        } else {
          moveFocus(-1);
        }
      }

      /**
       * Moves the focus to the right this is called by the right key.
       *
       * @private
       */
      function right() {
        var role = getRole(), parentRole = getParentRole();

        if (parentRole == "tablist") {
          moveFocus(1, getFocusElements(focusedElement.parentNode));
        } else if (role == "menuitem" && parentRole == "menu" && getAriaProp('haspopup')) {
          enter();
        } else {
          moveFocus(1);
        }
      }

      /**
       * Moves the focus to the up this is called by the up key.
       *
       * @private
       */
      function up() {
        moveFocus(-1);
      }

      /**
       * Moves the focus to the up this is called by the down key.
       *
       * @private
       */
      function down() {
        var role = getRole(), parentRole = getParentRole();

        if (role == "menuitem" && parentRole == "menubar") {
          enter();
        } else if (role == "button" && getAriaProp('haspopup')) {
          enter({ key: 'down' });
        } else {
          moveFocus(1);
        }
      }

      /**
       * Moves the focus to the next item or previous item depending on shift key.
       *
       * @private
       * @param {DOMEvent} e DOM event object.
       */
      function tab(e) {
        var parentRole = getParentRole();

        if (parentRole == "tablist") {
          var elm = getFocusElements(focusedControl.getEl('body'))[0];

          if (elm) {
            elm.focus();
          }
        } else {
          moveFocus(e.shiftKey ? -1 : 1);
        }
      }

      /**
       * Calls the cancel event on the currently focused control. This is normally done using the Esc key.
       *
       * @private
       */
      function cancel() {
        focusedControl.fire('cancel');
      }

      /**
       * Calls the click event on the currently focused control. This is normally done using the Enter/Space keys.
       *
       * @private
       * @param {Object} aria Optional aria data to pass along with the enter event.
       */
      function enter(aria) {
        aria = aria || {};
        focusedControl.fire('click', { target: focusedElement, aria: aria });
      }

      root.on('keydown', function (e) {
        function handleNonTabOrEscEvent(e, handler) {
          // Ignore non tab keys for text elements
          if (isTextInputElement(focusedElement) || hasTabstopData(focusedElement)) {
            return;
          }

          if (getRole(focusedElement) === 'slider') {
            return;
          }

          if (handler(e) !== false) {
            e.preventDefault();
          }
        }

        if (e.isDefaultPrevented()) {
          return;
        }

        switch (e.keyCode) {
          case 37: // DOM_VK_LEFT
            handleNonTabOrEscEvent(e, left);
            break;

          case 39: // DOM_VK_RIGHT
            handleNonTabOrEscEvent(e, right);
            break;

          case 38: // DOM_VK_UP
            handleNonTabOrEscEvent(e, up);
            break;

          case 40: // DOM_VK_DOWN
            handleNonTabOrEscEvent(e, down);
            break;

          case 27: // DOM_VK_ESCAPE
            cancel();
            break;

          case 14: // DOM_VK_ENTER
          case 13: // DOM_VK_RETURN
          case 32: // DOM_VK_SPACE
            handleNonTabOrEscEvent(e, enter);
            break;

          case 9: // DOM_VK_TAB
            if (tab(e) !== false) {
              e.preventDefault();
            }
            break;
        }
      });

      root.on('focusin', function (e) {
        focusedElement = e.target;
        focusedControl = e.control;
      });

      return {
        focusFirst: focusFirst
      };
    };
  }
);
/**
 * Container.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Container control. This is extended by all controls that can have
 * children such as panels etc. You can also use this class directly as an
 * generic container instance. The container doesn't have any specific role or style.
 *
 * @-x-less Container.less
 * @class tinymce.ui.Container
 * @extends tinymce.ui.Control
 */
define(
  'tinymce.core.ui.Container',
  [
    "tinymce.core.ui.Control",
    "tinymce.core.ui.Collection",
    "tinymce.core.ui.Selector",
    "tinymce.core.ui.Factory",
    "tinymce.core.ui.KeyboardNavigation",
    "tinymce.core.util.Tools",
    "tinymce.core.dom.DomQuery",
    "tinymce.core.ui.ClassList",
    "tinymce.core.ui.ReflowQueue"
  ],
  function (Control, Collection, Selector, Factory, KeyboardNavigation, Tools, $, ClassList, ReflowQueue) {
    "use strict";

    var selectorCache = {};

    return Control.extend({
      /**
       * Constructs a new control instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Array} items Items to add to container in JSON format or control instances.
       * @setting {String} layout Layout manager by name to use.
       * @setting {Object} defaults Default settings to apply to all items.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        settings = self.settings;

        if (settings.fixed) {
          self.state.set('fixed', true);
        }

        self._items = new Collection();

        if (self.isRtl()) {
          self.classes.add('rtl');
        }

        self.bodyClasses = new ClassList(function () {
          if (self.state.get('rendered')) {
            self.getEl('body').className = this.toString();
          }
        });
        self.bodyClasses.prefix = self.classPrefix;

        self.classes.add('container');
        self.bodyClasses.add('container-body');

        if (settings.containerCls) {
          self.classes.add(settings.containerCls);
        }

        self._layout = Factory.create((settings.layout || '') + 'layout');

        if (self.settings.items) {
          self.add(self.settings.items);
        } else {
          self.add(self.render());
        }

        // TODO: Fix this!
        self._hasBody = true;
      },

      /**
       * Returns a collection of child items that the container currently have.
       *
       * @method items
       * @return {tinymce.ui.Collection} Control collection direct child controls.
       */
      items: function () {
        return this._items;
      },

      /**
       * Find child controls by selector.
       *
       * @method find
       * @param {String} selector Selector CSS pattern to find children by.
       * @return {tinymce.ui.Collection} Control collection with child controls.
       */
      find: function (selector) {
        selector = selectorCache[selector] = selectorCache[selector] || new Selector(selector);

        return selector.find(this);
      },

      /**
       * Adds one or many items to the current container. This will create instances of
       * the object representations if needed.
       *
       * @method add
       * @param {Array/Object/tinymce.ui.Control} items Array or item that will be added to the container.
       * @return {tinymce.ui.Collection} Current collection control.
       */
      add: function (items) {
        var self = this;

        self.items().add(self.create(items)).parent(self);

        return self;
      },

      /**
       * Focuses the current container instance. This will look
       * for the first control in the container and focus that.
       *
       * @method focus
       * @param {Boolean} keyboard Optional true/false if the focus was a keyboard focus or not.
       * @return {tinymce.ui.Collection} Current instance.
       */
      focus: function (keyboard) {
        var self = this, focusCtrl, keyboardNav, items;

        if (keyboard) {
          keyboardNav = self.keyboardNav || self.parents().eq(-1)[0].keyboardNav;

          if (keyboardNav) {
            keyboardNav.focusFirst(self);
            return;
          }
        }

        items = self.find('*');

        // TODO: Figure out a better way to auto focus alert dialog buttons
        if (self.statusbar) {
          items.add(self.statusbar.items());
        }

        items.each(function (ctrl) {
          if (ctrl.settings.autofocus) {
            focusCtrl = null;
            return false;
          }

          if (ctrl.canFocus) {
            focusCtrl = focusCtrl || ctrl;
          }
        });

        if (focusCtrl) {
          focusCtrl.focus();
        }

        return self;
      },

      /**
       * Replaces the specified child control with a new control.
       *
       * @method replace
       * @param {tinymce.ui.Control} oldItem Old item to be replaced.
       * @param {tinymce.ui.Control} newItem New item to be inserted.
       */
      replace: function (oldItem, newItem) {
        var ctrlElm, items = this.items(), i = items.length;

        // Replace the item in collection
        while (i--) {
          if (items[i] === oldItem) {
            items[i] = newItem;
            break;
          }
        }

        if (i >= 0) {
          // Remove new item from DOM
          ctrlElm = newItem.getEl();
          if (ctrlElm) {
            ctrlElm.parentNode.removeChild(ctrlElm);
          }

          // Remove old item from DOM
          ctrlElm = oldItem.getEl();
          if (ctrlElm) {
            ctrlElm.parentNode.removeChild(ctrlElm);
          }
        }

        // Adopt the item
        newItem.parent(this);
      },

      /**
       * Creates the specified items. If any of the items is plain JSON style objects
       * it will convert these into real tinymce.ui.Control instances.
       *
       * @method create
       * @param {Array} items Array of items to convert into control instances.
       * @return {Array} Array with control instances.
       */
      create: function (items) {
        var self = this, settings, ctrlItems = [];

        // Non array structure, then force it into an array
        if (!Tools.isArray(items)) {
          items = [items];
        }

        // Add default type to each child control
        Tools.each(items, function (item) {
          if (item) {
            // Construct item if needed
            if (!(item instanceof Control)) {
              // Name only then convert it to an object
              if (typeof item == "string") {
                item = { type: item };
              }

              // Create control instance based on input settings and default settings
              settings = Tools.extend({}, self.settings.defaults, item);
              item.type = settings.type = settings.type || item.type || self.settings.defaultType ||
                (settings.defaults ? settings.defaults.type : null);
              item = Factory.create(settings);
            }

            ctrlItems.push(item);
          }
        });

        return ctrlItems;
      },

      /**
       * Renders new control instances.
       *
       * @private
       */
      renderNew: function () {
        var self = this;

        // Render any new items
        self.items().each(function (ctrl, index) {
          var containerElm;

          ctrl.parent(self);

          if (!ctrl.state.get('rendered')) {
            containerElm = self.getEl('body');

            // Insert or append the item
            if (containerElm.hasChildNodes() && index <= containerElm.childNodes.length - 1) {
              $(containerElm.childNodes[index]).before(ctrl.renderHtml());
            } else {
              $(containerElm).append(ctrl.renderHtml());
            }

            ctrl.postRender();
            ReflowQueue.add(ctrl);
          }
        });

        self._layout.applyClasses(self.items().filter(':visible'));
        self._lastRect = null;

        return self;
      },

      /**
       * Appends new instances to the current container.
       *
       * @method append
       * @param {Array/tinymce.ui.Collection} items Array if controls to append.
       * @return {tinymce.ui.Container} Current container instance.
       */
      append: function (items) {
        return this.add(items).renderNew();
      },

      /**
       * Prepends new instances to the current container.
       *
       * @method prepend
       * @param {Array/tinymce.ui.Collection} items Array if controls to prepend.
       * @return {tinymce.ui.Container} Current container instance.
       */
      prepend: function (items) {
        var self = this;

        self.items().set(self.create(items).concat(self.items().toArray()));

        return self.renderNew();
      },

      /**
       * Inserts an control at a specific index.
       *
       * @method insert
       * @param {Array/tinymce.ui.Collection} items Array if controls to insert.
       * @param {Number} index Index to insert controls at.
       * @param {Boolean} [before=false] Inserts controls before the index.
       */
      insert: function (items, index, before) {
        var self = this, curItems, beforeItems, afterItems;

        items = self.create(items);
        curItems = self.items();

        if (!before && index < curItems.length - 1) {
          index += 1;
        }

        if (index >= 0 && index < curItems.length) {
          beforeItems = curItems.slice(0, index).toArray();
          afterItems = curItems.slice(index).toArray();
          curItems.set(beforeItems.concat(items, afterItems));
        }

        return self.renderNew();
      },

      /**
       * Populates the form fields from the specified JSON data object.
       *
       * Control items in the form that matches the data will have it's value set.
       *
       * @method fromJSON
       * @param {Object} data JSON data object to set control values by.
       * @return {tinymce.ui.Container} Current form instance.
       */
      fromJSON: function (data) {
        var self = this;

        for (var name in data) {
          self.find('#' + name).value(data[name]);
        }

        return self;
      },

      /**
       * Serializes the form into a JSON object by getting all items
       * that has a name and a value.
       *
       * @method toJSON
       * @return {Object} JSON object with form data.
       */
      toJSON: function () {
        var self = this, data = {};

        self.find('*').each(function (ctrl) {
          var name = ctrl.name(), value = ctrl.value();

          if (name && typeof value != "undefined") {
            data[name] = value;
          }
        });

        return data;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout, role = this.settings.role;

        self.preRender();
        layout.preRender(self);

        return (
          '<div id="' + self._id + '" class="' + self.classes + '"' + (role ? ' role="' + this.settings.role + '"' : '') + '>' +
          '<div id="' + self._id + '-body" class="' + self.bodyClasses + '">' +
          (self.settings.html || '') + layout.renderHtml(self) +
          '</div>' +
          '</div>'
        );
      },

      /**
       * Post render method. Called after the control has been rendered to the target.
       *
       * @method postRender
       * @return {tinymce.ui.Container} Current combobox instance.
       */
      postRender: function () {
        var self = this, box;

        self.items().exec('postRender');
        self._super();

        self._layout.postRender(self);
        self.state.set('rendered', true);

        if (self.settings.style) {
          self.$el.css(self.settings.style);
        }

        if (self.settings.border) {
          box = self.borderBox;
          self.$el.css({
            'border-top-width': box.top,
            'border-right-width': box.right,
            'border-bottom-width': box.bottom,
            'border-left-width': box.left
          });
        }

        if (!self.parent()) {
          self.keyboardNav = new KeyboardNavigation({
            root: self
          });
        }

        return self;
      },

      /**
       * Initializes the current controls layout rect.
       * This will be executed by the layout managers to determine the
       * default minWidth/minHeight etc.
       *
       * @method initLayoutRect
       * @return {Object} Layout rect instance.
       */
      initLayoutRect: function () {
        var self = this, layoutRect = self._super();

        // Recalc container size by asking layout manager
        self._layout.recalc(self);

        return layoutRect;
      },

      /**
       * Recalculates the positions of the controls in the current container.
       * This is invoked by the reflow method and shouldn't be called directly.
       *
       * @method recalc
       */
      recalc: function () {
        var self = this, rect = self._layoutRect, lastRect = self._lastRect;

        if (!lastRect || lastRect.w != rect.w || lastRect.h != rect.h) {
          self._layout.recalc(self);
          rect = self.layoutRect();
          self._lastRect = { x: rect.x, y: rect.y, w: rect.w, h: rect.h };
          return true;
        }
      },

      /**
       * Reflows the current container and it's children and possible parents.
       * This should be used after you for example append children to the current control so
       * that the layout managers know that they need to reposition everything.
       *
       * @example
       * container.append({type: 'button', text: 'My button'}).reflow();
       *
       * @method reflow
       * @return {tinymce.ui.Container} Current container instance.
       */
      reflow: function () {
        var i;

        ReflowQueue.remove(this);

        if (this.visible()) {
          Control.repaintControls = [];
          Control.repaintControls.map = {};

          this.recalc();
          i = Control.repaintControls.length;

          while (i--) {
            Control.repaintControls[i].repaint();
          }

          // TODO: Fix me!
          if (this.settings.layout !== "flow" && this.settings.layout !== "stack") {
            this.repaint();
          }

          Control.repaintControls = [];
        }

        return this;
      }
    });
  }
);
/**
 * DragHelper.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Drag/drop helper class.
 *
 * @example
 * var dragHelper = new tinymce.ui.DragHelper('mydiv', {
 *     start: function(evt) {
 *     },
 *
 *     drag: function(evt) {
 *     },
 *
 *     end: function(evt) {
 *     }
 * });
 *
 * @class tinymce.ui.DragHelper
 */
define(
  'tinymce.core.ui.DragHelper',
  [
    "tinymce.core.dom.DomQuery"
  ],
  function ($) {
    "use strict";

    function getDocumentSize(doc) {
      var documentElement, body, scrollWidth, clientWidth;
      var offsetWidth, scrollHeight, clientHeight, offsetHeight, max = Math.max;

      documentElement = doc.documentElement;
      body = doc.body;

      scrollWidth = max(documentElement.scrollWidth, body.scrollWidth);
      clientWidth = max(documentElement.clientWidth, body.clientWidth);
      offsetWidth = max(documentElement.offsetWidth, body.offsetWidth);

      scrollHeight = max(documentElement.scrollHeight, body.scrollHeight);
      clientHeight = max(documentElement.clientHeight, body.clientHeight);
      offsetHeight = max(documentElement.offsetHeight, body.offsetHeight);

      return {
        width: scrollWidth < offsetWidth ? clientWidth : scrollWidth,
        height: scrollHeight < offsetHeight ? clientHeight : scrollHeight
      };
    }

    function updateWithTouchData(e) {
      var keys, i;

      if (e.changedTouches) {
        keys = "screenX screenY pageX pageY clientX clientY".split(' ');
        for (i = 0; i < keys.length; i++) {
          e[keys[i]] = e.changedTouches[0][keys[i]];
        }
      }
    }

    return function (id, settings) {
      var $eventOverlay, doc = settings.document || document, downButton, start, stop, drag, startX, startY;

      settings = settings || {};

      function getHandleElm() {
        return doc.getElementById(settings.handle || id);
      }

      start = function (e) {
        var docSize = getDocumentSize(doc), handleElm, cursor;

        updateWithTouchData(e);

        e.preventDefault();
        downButton = e.button;
        handleElm = getHandleElm();
        startX = e.screenX;
        startY = e.screenY;

        // Grab cursor from handle so we can place it on overlay
        if (window.getComputedStyle) {
          cursor = window.getComputedStyle(handleElm, null).getPropertyValue("cursor");
        } else {
          cursor = handleElm.runtimeStyle.cursor;
        }

        $eventOverlay = $('<div></div>').css({
          position: "absolute",
          top: 0, left: 0,
          width: docSize.width,
          height: docSize.height,
          zIndex: 0x7FFFFFFF,
          opacity: 0.0001,
          cursor: cursor
        }).appendTo(doc.body);

        $(doc).on('mousemove touchmove', drag).on('mouseup touchend', stop);

        settings.start(e);
      };

      drag = function (e) {
        updateWithTouchData(e);

        if (e.button !== downButton) {
          return stop(e);
        }

        e.deltaX = e.screenX - startX;
        e.deltaY = e.screenY - startY;

        e.preventDefault();
        settings.drag(e);
      };

      stop = function (e) {
        updateWithTouchData(e);

        $(doc).off('mousemove touchmove', drag).off('mouseup touchend', stop);

        $eventOverlay.remove();

        if (settings.stop) {
          settings.stop(e);
        }
      };

      /**
       * Destroys the drag/drop helper instance.
       *
       * @method destroy
       */
      this.destroy = function () {
        $(getHandleElm()).off();
      };

      $(getHandleElm()).on('mousedown touchstart', start);
    };
  }
);
/**
 * Scrollable.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This mixin makes controls scrollable using custom scrollbars.
 *
 * @-x-less Scrollable.less
 * @mixin tinymce.ui.Scrollable
 */
define(
  'tinymce.core.ui.Scrollable',
  [
    "tinymce.core.dom.DomQuery",
    "tinymce.core.ui.DragHelper"
  ],
  function ($, DragHelper) {
    "use strict";

    return {
      init: function () {
        var self = this;
        self.on('repaint', self.renderScroll);
      },

      renderScroll: function () {
        var self = this, margin = 2;

        function repaintScroll() {
          var hasScrollH, hasScrollV, bodyElm;

          function repaintAxis(axisName, posName, sizeName, contentSizeName, hasScroll, ax) {
            var containerElm, scrollBarElm, scrollThumbElm;
            var containerSize, scrollSize, ratio, rect;
            var posNameLower, sizeNameLower;

            scrollBarElm = self.getEl('scroll' + axisName);
            if (scrollBarElm) {
              posNameLower = posName.toLowerCase();
              sizeNameLower = sizeName.toLowerCase();

              $(self.getEl('absend')).css(posNameLower, self.layoutRect()[contentSizeName] - 1);

              if (!hasScroll) {
                $(scrollBarElm).css('display', 'none');
                return;
              }

              $(scrollBarElm).css('display', 'block');
              containerElm = self.getEl('body');
              scrollThumbElm = self.getEl('scroll' + axisName + "t");
              containerSize = containerElm["client" + sizeName] - (margin * 2);
              containerSize -= hasScrollH && hasScrollV ? scrollBarElm["client" + ax] : 0;
              scrollSize = containerElm["scroll" + sizeName];
              ratio = containerSize / scrollSize;

              rect = {};
              rect[posNameLower] = containerElm["offset" + posName] + margin;
              rect[sizeNameLower] = containerSize;
              $(scrollBarElm).css(rect);

              rect = {};
              rect[posNameLower] = containerElm["scroll" + posName] * ratio;
              rect[sizeNameLower] = containerSize * ratio;
              $(scrollThumbElm).css(rect);
            }
          }

          bodyElm = self.getEl('body');
          hasScrollH = bodyElm.scrollWidth > bodyElm.clientWidth;
          hasScrollV = bodyElm.scrollHeight > bodyElm.clientHeight;

          repaintAxis("h", "Left", "Width", "contentW", hasScrollH, "Height");
          repaintAxis("v", "Top", "Height", "contentH", hasScrollV, "Width");
        }

        function addScroll() {
          function addScrollAxis(axisName, posName, sizeName, deltaPosName, ax) {
            var scrollStart, axisId = self._id + '-scroll' + axisName, prefix = self.classPrefix;

            $(self.getEl()).append(
              '<div id="' + axisId + '" class="' + prefix + 'scrollbar ' + prefix + 'scrollbar-' + axisName + '">' +
              '<div id="' + axisId + 't" class="' + prefix + 'scrollbar-thumb"></div>' +
              '</div>'
            );

            self.draghelper = new DragHelper(axisId + 't', {
              start: function () {
                scrollStart = self.getEl('body')["scroll" + posName];
                $('#' + axisId).addClass(prefix + 'active');
              },

              drag: function (e) {
                var ratio, hasScrollH, hasScrollV, containerSize, layoutRect = self.layoutRect();

                hasScrollH = layoutRect.contentW > layoutRect.innerW;
                hasScrollV = layoutRect.contentH > layoutRect.innerH;
                containerSize = self.getEl('body')["client" + sizeName] - (margin * 2);
                containerSize -= hasScrollH && hasScrollV ? self.getEl('scroll' + axisName)["client" + ax] : 0;

                ratio = containerSize / self.getEl('body')["scroll" + sizeName];
                self.getEl('body')["scroll" + posName] = scrollStart + (e["delta" + deltaPosName] / ratio);
              },

              stop: function () {
                $('#' + axisId).removeClass(prefix + 'active');
              }
            });
          }

          self.classes.add('scroll');

          addScrollAxis("v", "Top", "Height", "Y", "Width");
          addScrollAxis("h", "Left", "Width", "X", "Height");
        }

        if (self.settings.autoScroll) {
          if (!self._hasScroll) {
            self._hasScroll = true;
            addScroll();

            self.on('wheel', function (e) {
              var bodyEl = self.getEl('body');

              bodyEl.scrollLeft += (e.deltaX || 0) * 10;
              bodyEl.scrollTop += e.deltaY * 10;

              repaintScroll();
            });

            $(self.getEl('body')).on("scroll", repaintScroll);
          }

          repaintScroll();
        }
      }
    };
  }
);
/**
 * Panel.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new panel.
 *
 * @-x-less Panel.less
 * @class tinymce.ui.Panel
 * @extends tinymce.ui.Container
 * @mixes tinymce.ui.Scrollable
 */
define(
  'tinymce.core.ui.Panel',
  [
    "tinymce.core.ui.Container",
    "tinymce.core.ui.Scrollable"
  ],
  function (Container, Scrollable) {
    "use strict";

    return Container.extend({
      Defaults: {
        layout: 'fit',
        containerCls: 'panel'
      },

      Mixins: [Scrollable],

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout, innerHtml = self.settings.html;

        self.preRender();
        layout.preRender(self);

        if (typeof innerHtml == "undefined") {
          innerHtml = (
            '<div id="' + self._id + '-body" class="' + self.bodyClasses + '">' +
            layout.renderHtml(self) +
            '</div>'
          );
        } else {
          if (typeof innerHtml == 'function') {
            innerHtml = innerHtml.call(self);
          }

          self._hasBody = false;
        }

        return (
          '<div id="' + self._id + '" class="' + self.classes + '" hidefocus="1" tabindex="-1" role="group">' +
          (self._preBodyHtml || '') +
          innerHtml +
          '</div>'
        );
      }
    });
  }
);

/**
 * Movable.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Movable mixin. Makes controls movable absolute and relative to other elements.
 *
 * @mixin tinymce.ui.Movable
 */
define(
  'tinymce.core.ui.Movable',
  [
    "tinymce.core.ui.DomUtils"
  ],
  function (DomUtils) {
    "use strict";

    function calculateRelativePosition(ctrl, targetElm, rel) {
      var ctrlElm, pos, x, y, selfW, selfH, targetW, targetH, viewport, size;

      viewport = DomUtils.getViewPort();

      // Get pos of target
      pos = DomUtils.getPos(targetElm);
      x = pos.x;
      y = pos.y;

      if (ctrl.state.get('fixed') && DomUtils.getRuntimeStyle(document.body, 'position') == 'static') {
        x -= viewport.x;
        y -= viewport.y;
      }

      // Get size of self
      ctrlElm = ctrl.getEl();
      size = DomUtils.getSize(ctrlElm);
      selfW = size.width;
      selfH = size.height;

      // Get size of target
      size = DomUtils.getSize(targetElm);
      targetW = size.width;
      targetH = size.height;

      // Parse align string
      rel = (rel || '').split('');

      // Target corners
      if (rel[0] === 'b') {
        y += targetH;
      }

      if (rel[1] === 'r') {
        x += targetW;
      }

      if (rel[0] === 'c') {
        y += Math.round(targetH / 2);
      }

      if (rel[1] === 'c') {
        x += Math.round(targetW / 2);
      }

      // Self corners
      if (rel[3] === 'b') {
        y -= selfH;
      }

      if (rel[4] === 'r') {
        x -= selfW;
      }

      if (rel[3] === 'c') {
        y -= Math.round(selfH / 2);
      }

      if (rel[4] === 'c') {
        x -= Math.round(selfW / 2);
      }

      return {
        x: x,
        y: y,
        w: selfW,
        h: selfH
      };
    }

    return {
      /**
       * Tests various positions to get the most suitable one.
       *
       * @method testMoveRel
       * @param {DOMElement} elm Element to position against.
       * @param {Array} rels Array with relative positions.
       * @return {String} Best suitable relative position.
       */
      testMoveRel: function (elm, rels) {
        var viewPortRect = DomUtils.getViewPort();

        for (var i = 0; i < rels.length; i++) {
          var pos = calculateRelativePosition(this, elm, rels[i]);

          if (this.state.get('fixed')) {
            if (pos.x > 0 && pos.x + pos.w < viewPortRect.w && pos.y > 0 && pos.y + pos.h < viewPortRect.h) {
              return rels[i];
            }
          } else {
            if (pos.x > viewPortRect.x && pos.x + pos.w < viewPortRect.w + viewPortRect.x &&
              pos.y > viewPortRect.y && pos.y + pos.h < viewPortRect.h + viewPortRect.y) {
              return rels[i];
            }
          }
        }

        return rels[0];
      },

      /**
       * Move relative to the specified element.
       *
       * @method moveRel
       * @param {Element} elm Element to move relative to.
       * @param {String} rel Relative mode. For example: br-tl.
       * @return {tinymce.ui.Control} Current control instance.
       */
      moveRel: function (elm, rel) {
        if (typeof rel != 'string') {
          rel = this.testMoveRel(elm, rel);
        }

        var pos = calculateRelativePosition(this, elm, rel);
        return this.moveTo(pos.x, pos.y);
      },

      /**
       * Move by a relative x, y values.
       *
       * @method moveBy
       * @param {Number} dx Relative x position.
       * @param {Number} dy Relative y position.
       * @return {tinymce.ui.Control} Current control instance.
       */
      moveBy: function (dx, dy) {
        var self = this, rect = self.layoutRect();

        self.moveTo(rect.x + dx, rect.y + dy);

        return self;
      },

      /**
       * Move to absolute position.
       *
       * @method moveTo
       * @param {Number} x Absolute x position.
       * @param {Number} y Absolute y position.
       * @return {tinymce.ui.Control} Current control instance.
       */
      moveTo: function (x, y) {
        var self = this;

        // TODO: Move this to some global class
        function constrain(value, max, size) {
          if (value < 0) {
            return 0;
          }

          if (value + size > max) {
            value = max - size;
            return value < 0 ? 0 : value;
          }

          return value;
        }

        if (self.settings.constrainToViewport) {
          var viewPortRect = DomUtils.getViewPort(window);
          var layoutRect = self.layoutRect();

          x = constrain(x, viewPortRect.w + viewPortRect.x, layoutRect.w);
          y = constrain(y, viewPortRect.h + viewPortRect.y, layoutRect.h);
        }

        if (self.state.get('rendered')) {
          self.layoutRect({ x: x, y: y }).repaint();
        } else {
          self.settings.x = x;
          self.settings.y = y;
        }

        self.fire('move', { x: x, y: y });

        return self;
      }
    };
  }
);
/**
 * Resizable.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Resizable mixin. Enables controls to be resized.
 *
 * @mixin tinymce.ui.Resizable
 */
define(
  'tinymce.core.ui.Resizable',
  [
    "tinymce.core.ui.DomUtils"
  ],
  function (DomUtils) {
    "use strict";

    return {
      /**
       * Resizes the control to contents.
       *
       * @method resizeToContent
       */
      resizeToContent: function () {
        this._layoutRect.autoResize = true;
        this._lastRect = null;
        this.reflow();
      },

      /**
       * Resizes the control to a specific width/height.
       *
       * @method resizeTo
       * @param {Number} w Control width.
       * @param {Number} h Control height.
       * @return {tinymce.ui.Control} Current control instance.
       */
      resizeTo: function (w, h) {
        // TODO: Fix hack
        if (w <= 1 || h <= 1) {
          var rect = DomUtils.getWindowSize();

          w = w <= 1 ? w * rect.w : w;
          h = h <= 1 ? h * rect.h : h;
        }

        this._layoutRect.autoResize = false;
        return this.layoutRect({ minW: w, minH: h, w: w, h: h }).reflow();
      },

      /**
       * Resizes the control to a specific relative width/height.
       *
       * @method resizeBy
       * @param {Number} dw Relative control width.
       * @param {Number} dh Relative control height.
       * @return {tinymce.ui.Control} Current control instance.
       */
      resizeBy: function (dw, dh) {
        var self = this, rect = self.layoutRect();

        return self.resizeTo(rect.w + dw, rect.h + dh);
      }
    };
  }
);
/**
 * FloatPanel.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates a floating panel.
 *
 * @-x-less FloatPanel.less
 * @class tinymce.ui.FloatPanel
 * @extends tinymce.ui.Panel
 * @mixes tinymce.ui.Movable
 * @mixes tinymce.ui.Resizable
 */
define(
  'tinymce.core.ui.FloatPanel',
  [
    "tinymce.core.ui.Panel",
    "tinymce.core.ui.Movable",
    "tinymce.core.ui.Resizable",
    "tinymce.core.ui.DomUtils",
    "tinymce.core.dom.DomQuery",
    "tinymce.core.util.Delay"
  ],
  function (Panel, Movable, Resizable, DomUtils, $, Delay) {
    "use strict";

    var documentClickHandler, documentScrollHandler, windowResizeHandler, visiblePanels = [];
    var zOrder = [], hasModal;

    function isChildOf(ctrl, parent) {
      while (ctrl) {
        if (ctrl == parent) {
          return true;
        }

        ctrl = ctrl.parent();
      }
    }

    function skipOrHidePanels(e) {
      // Hide any float panel when a click/focus out is out side that float panel and the
      // float panels direct parent for example a click on a menu button
      var i = visiblePanels.length;

      while (i--) {
        var panel = visiblePanels[i], clickCtrl = panel.getParentCtrl(e.target);

        if (panel.settings.autohide) {
          if (clickCtrl) {
            if (isChildOf(clickCtrl, panel) || panel.parent() === clickCtrl) {
              continue;
            }
          }

          e = panel.fire('autohide', { target: e.target });
          if (!e.isDefaultPrevented()) {
            panel.hide();
          }
        }
      }
    }

    function bindDocumentClickHandler() {

      if (!documentClickHandler) {
        documentClickHandler = function (e) {
          // Gecko fires click event and in the wrong order on Mac so lets normalize
          if (e.button == 2) {
            return;
          }

          skipOrHidePanels(e);
        };

        $(document).on('click touchstart', documentClickHandler);
      }
    }

    function bindDocumentScrollHandler() {
      if (!documentScrollHandler) {
        documentScrollHandler = function () {
          var i;

          i = visiblePanels.length;
          while (i--) {
            repositionPanel(visiblePanels[i]);
          }
        };

        $(window).on('scroll', documentScrollHandler);
      }
    }

    function bindWindowResizeHandler() {
      if (!windowResizeHandler) {
        var docElm = document.documentElement, clientWidth = docElm.clientWidth, clientHeight = docElm.clientHeight;

        windowResizeHandler = function () {
          // Workaround for #7065 IE 7 fires resize events event though the window wasn't resized
          if (!document.all || clientWidth != docElm.clientWidth || clientHeight != docElm.clientHeight) {
            clientWidth = docElm.clientWidth;
            clientHeight = docElm.clientHeight;
            FloatPanel.hideAll();
          }
        };

        $(window).on('resize', windowResizeHandler);
      }
    }

    /**
     * Repositions the panel to the top of page if the panel is outside of the visual viewport. It will
     * also reposition all child panels of the current panel.
     */
    function repositionPanel(panel) {
      var scrollY = DomUtils.getViewPort().y;

      function toggleFixedChildPanels(fixed, deltaY) {
        var parent;

        for (var i = 0; i < visiblePanels.length; i++) {
          if (visiblePanels[i] != panel) {
            parent = visiblePanels[i].parent();

            while (parent && (parent = parent.parent())) {
              if (parent == panel) {
                visiblePanels[i].fixed(fixed).moveBy(0, deltaY).repaint();
              }
            }
          }
        }
      }

      if (panel.settings.autofix) {
        if (!panel.state.get('fixed')) {
          panel._autoFixY = panel.layoutRect().y;

          if (panel._autoFixY < scrollY) {
            panel.fixed(true).layoutRect({ y: 0 }).repaint();
            toggleFixedChildPanels(true, scrollY - panel._autoFixY);
          }
        } else {
          if (panel._autoFixY > scrollY) {
            panel.fixed(false).layoutRect({ y: panel._autoFixY }).repaint();
            toggleFixedChildPanels(false, panel._autoFixY - scrollY);
          }
        }
      }
    }

    function addRemove(add, ctrl) {
      var i, zIndex = FloatPanel.zIndex || 0xFFFF, topModal;

      if (add) {
        zOrder.push(ctrl);
      } else {
        i = zOrder.length;

        while (i--) {
          if (zOrder[i] === ctrl) {
            zOrder.splice(i, 1);
          }
        }
      }

      if (zOrder.length) {
        for (i = 0; i < zOrder.length; i++) {
          if (zOrder[i].modal) {
            zIndex++;
            topModal = zOrder[i];
          }

          zOrder[i].getEl().style.zIndex = zIndex;
          zOrder[i].zIndex = zIndex;
          zIndex++;
        }
      }

      var modalBlockEl = $('#' + ctrl.classPrefix + 'modal-block', ctrl.getContainerElm())[0];

      if (topModal) {
        $(modalBlockEl).css('z-index', topModal.zIndex - 1);
      } else if (modalBlockEl) {
        modalBlockEl.parentNode.removeChild(modalBlockEl);
        hasModal = false;
      }

      FloatPanel.currentZIndex = zIndex;
    }

    var FloatPanel = Panel.extend({
      Mixins: [Movable, Resizable],

      /**
       * Constructs a new control instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Boolean} autohide Automatically hide the panel.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        self._eventsRoot = self;

        self.classes.add('floatpanel');

        // Hide floatpanes on click out side the root button
        if (settings.autohide) {
          bindDocumentClickHandler();
          bindWindowResizeHandler();
          visiblePanels.push(self);
        }

        if (settings.autofix) {
          bindDocumentScrollHandler();

          self.on('move', function () {
            repositionPanel(this);
          });
        }

        self.on('postrender show', function (e) {
          if (e.control == self) {
            var $modalBlockEl, prefix = self.classPrefix;

            if (self.modal && !hasModal) {
              $modalBlockEl = $('#' + prefix + 'modal-block', self.getContainerElm());
              if (!$modalBlockEl[0]) {
                $modalBlockEl = $(
                  '<div id="' + prefix + 'modal-block" class="' + prefix + 'reset ' + prefix + 'fade"></div>'
                ).appendTo(self.getContainerElm());
              }

              Delay.setTimeout(function () {
                $modalBlockEl.addClass(prefix + 'in');
                $(self.getEl()).addClass(prefix + 'in');
              });

              hasModal = true;
            }

            addRemove(true, self);
          }
        });

        self.on('show', function () {
          self.parents().each(function (ctrl) {
            if (ctrl.state.get('fixed')) {
              self.fixed(true);
              return false;
            }
          });
        });

        if (settings.popover) {
          self._preBodyHtml = '<div class="' + self.classPrefix + 'arrow"></div>';
          self.classes.add('popover').add('bottom').add(self.isRtl() ? 'end' : 'start');
        }

        self.aria('label', settings.ariaLabel);
        self.aria('labelledby', self._id);
        self.aria('describedby', self.describedBy || self._id + '-none');
      },

      fixed: function (state) {
        var self = this;

        if (self.state.get('fixed') != state) {
          if (self.state.get('rendered')) {
            var viewport = DomUtils.getViewPort();

            if (state) {
              self.layoutRect().y -= viewport.y;
            } else {
              self.layoutRect().y += viewport.y;
            }
          }

          self.classes.toggle('fixed', state);
          self.state.set('fixed', state);
        }

        return self;
      },

      /**
       * Shows the current float panel.
       *
       * @method show
       * @return {tinymce.ui.FloatPanel} Current floatpanel instance.
       */
      show: function () {
        var self = this, i, state = self._super();

        i = visiblePanels.length;
        while (i--) {
          if (visiblePanels[i] === self) {
            break;
          }
        }

        if (i === -1) {
          visiblePanels.push(self);
        }

        return state;
      },

      /**
       * Hides the current float panel.
       *
       * @method hide
       * @return {tinymce.ui.FloatPanel} Current floatpanel instance.
       */
      hide: function () {
        removeVisiblePanel(this);
        addRemove(false, this);

        return this._super();
      },

      /**
       * Hide all visible float panels with he autohide setting enabled. This is for
       * manually hiding floating menus or panels.
       *
       * @method hideAll
       */
      hideAll: function () {
        FloatPanel.hideAll();
      },

      /**
       * Closes the float panel. This will remove the float panel from page and fire the close event.
       *
       * @method close
       */
      close: function () {
        var self = this;

        if (!self.fire('close').isDefaultPrevented()) {
          self.remove();
          addRemove(false, self);
        }

        return self;
      },

      /**
       * Removes the float panel from page.
       *
       * @method remove
       */
      remove: function () {
        removeVisiblePanel(this);
        this._super();
      },

      postRender: function () {
        var self = this;

        if (self.settings.bodyRole) {
          this.getEl('body').setAttribute('role', self.settings.bodyRole);
        }

        return self._super();
      }
    });

    /**
     * Hide all visible float panels with he autohide setting enabled. This is for
     * manually hiding floating menus or panels.
     *
     * @static
     * @method hideAll
     */
    FloatPanel.hideAll = function () {
      var i = visiblePanels.length;

      while (i--) {
        var panel = visiblePanels[i];

        if (panel && panel.settings.autohide) {
          panel.hide();
          visiblePanels.splice(i, 1);
        }
      }
    };

    function removeVisiblePanel(panel) {
      var i;

      i = visiblePanels.length;
      while (i--) {
        if (visiblePanels[i] === panel) {
          visiblePanels.splice(i, 1);
        }
      }

      i = zOrder.length;
      while (i--) {
        if (zOrder[i] === panel) {
          zOrder.splice(i, 1);
        }
      }
    }

    return FloatPanel;
  }
);

/**
 * Window.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new window.
 *
 * @-x-less Window.less
 * @class tinymce.ui.Window
 * @extends tinymce.ui.FloatPanel
 */
define(
  'tinymce.core.ui.Window',
  [
    "tinymce.core.ui.FloatPanel",
    "tinymce.core.ui.Panel",
    "tinymce.core.ui.DomUtils",
    "tinymce.core.dom.DomQuery",
    "tinymce.core.ui.DragHelper",
    "tinymce.core.ui.BoxUtils",
    "tinymce.core.Env",
    "tinymce.core.util.Delay"
  ],
  function (FloatPanel, Panel, DomUtils, $, DragHelper, BoxUtils, Env, Delay) {
    "use strict";

    var windows = [], oldMetaValue = '';

    function toggleFullScreenState(state) {
      var noScaleMetaValue = 'width=device-width,initial-scale=1.0,user-scalable=0,minimum-scale=1.0,maximum-scale=1.0',
        viewport = $("meta[name=viewport]")[0],
        contentValue;

      if (Env.overrideViewPort === false) {
        return;
      }

      if (!viewport) {
        viewport = document.createElement('meta');
        viewport.setAttribute('name', 'viewport');
        document.getElementsByTagName('head')[0].appendChild(viewport);
      }

      contentValue = viewport.getAttribute('content');
      if (contentValue && typeof oldMetaValue != 'undefined') {
        oldMetaValue = contentValue;
      }

      viewport.setAttribute('content', state ? noScaleMetaValue : oldMetaValue);
    }

    function toggleBodyFullScreenClasses(classPrefix, state) {
      if (checkFullscreenWindows() && state === false) {
        $([document.documentElement, document.body]).removeClass(classPrefix + 'fullscreen');
      }
    }

    function checkFullscreenWindows() {
      for (var i = 0; i < windows.length; i++) {
        if (windows[i]._fullscreen) {
          return true;
        }
      }
      return false;
    }

    function handleWindowResize() {
      if (!Env.desktop) {
        var lastSize = {
          w: window.innerWidth,
          h: window.innerHeight
        };

        Delay.setInterval(function () {
          var w = window.innerWidth,
            h = window.innerHeight;

          if (lastSize.w != w || lastSize.h != h) {
            lastSize = {
              w: w,
              h: h
            };

            $(window).trigger('resize');
          }
        }, 100);
      }

      function reposition() {
        var i, rect = DomUtils.getWindowSize(), layoutRect;

        for (i = 0; i < windows.length; i++) {
          layoutRect = windows[i].layoutRect();

          windows[i].moveTo(
            windows[i].settings.x || Math.max(0, rect.w / 2 - layoutRect.w / 2),
            windows[i].settings.y || Math.max(0, rect.h / 2 - layoutRect.h / 2)
          );
        }
      }

      $(window).on('resize', reposition);
    }

    var Window = FloatPanel.extend({
      modal: true,

      Defaults: {
        border: 1,
        layout: 'flex',
        containerCls: 'panel',
        role: 'dialog',
        callbacks: {
          submit: function () {
            this.fire('submit', { data: this.toJSON() });
          },

          close: function () {
            this.close();
          }
        }
      },

      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);

        if (self.isRtl()) {
          self.classes.add('rtl');
        }

        self.classes.add('window');
        self.bodyClasses.add('window-body');
        self.state.set('fixed', true);

        // Create statusbar
        if (settings.buttons) {
          self.statusbar = new Panel({
            layout: 'flex',
            border: '1 0 0 0',
            spacing: 3,
            padding: 10,
            align: 'center',
            pack: self.isRtl() ? 'start' : 'end',
            defaults: {
              type: 'button'
            },
            items: settings.buttons
          });

          self.statusbar.classes.add('foot');
          self.statusbar.parent(self);
        }

        self.on('click', function (e) {
          var closeClass = self.classPrefix + 'close';

          if (DomUtils.hasClass(e.target, closeClass) || DomUtils.hasClass(e.target.parentNode, closeClass)) {
            self.close();
          }
        });

        self.on('cancel', function () {
          self.close();
        });

        self.aria('describedby', self.describedBy || self._id + '-none');
        self.aria('label', settings.title);
        self._fullscreen = false;
      },

      /**
       * Recalculates the positions of the controls in the current container.
       * This is invoked by the reflow method and shouldn't be called directly.
       *
       * @method recalc
       */
      recalc: function () {
        var self = this, statusbar = self.statusbar, layoutRect, width, x, needsRecalc;

        if (self._fullscreen) {
          self.layoutRect(DomUtils.getWindowSize());
          self.layoutRect().contentH = self.layoutRect().innerH;
        }

        self._super();

        layoutRect = self.layoutRect();

        // Resize window based on title width
        if (self.settings.title && !self._fullscreen) {
          width = layoutRect.headerW;
          if (width > layoutRect.w) {
            x = layoutRect.x - Math.max(0, width / 2);
            self.layoutRect({ w: width, x: x });
            needsRecalc = true;
          }
        }

        // Resize window based on statusbar width
        if (statusbar) {
          statusbar.layoutRect({ w: self.layoutRect().innerW }).recalc();

          width = statusbar.layoutRect().minW + layoutRect.deltaW;
          if (width > layoutRect.w) {
            x = layoutRect.x - Math.max(0, width - layoutRect.w);
            self.layoutRect({ w: width, x: x });
            needsRecalc = true;
          }
        }

        // Recalc body and disable auto resize
        if (needsRecalc) {
          self.recalc();
        }
      },

      /**
       * Initializes the current controls layout rect.
       * This will be executed by the layout managers to determine the
       * default minWidth/minHeight etc.
       *
       * @method initLayoutRect
       * @return {Object} Layout rect instance.
       */
      initLayoutRect: function () {
        var self = this, layoutRect = self._super(), deltaH = 0, headEl;

        // Reserve vertical space for title
        if (self.settings.title && !self._fullscreen) {
          headEl = self.getEl('head');

          var size = DomUtils.getSize(headEl);

          layoutRect.headerW = size.width;
          layoutRect.headerH = size.height;

          deltaH += layoutRect.headerH;
        }

        // Reserve vertical space for statusbar
        if (self.statusbar) {
          deltaH += self.statusbar.layoutRect().h;
        }

        layoutRect.deltaH += deltaH;
        layoutRect.minH += deltaH;
        //layoutRect.innerH -= deltaH;
        layoutRect.h += deltaH;

        var rect = DomUtils.getWindowSize();

        layoutRect.x = self.settings.x || Math.max(0, rect.w / 2 - layoutRect.w / 2);
        layoutRect.y = self.settings.y || Math.max(0, rect.h / 2 - layoutRect.h / 2);

        return layoutRect;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout, id = self._id, prefix = self.classPrefix;
        var settings = self.settings, headerHtml = '', footerHtml = '', html = settings.html;

        self.preRender();
        layout.preRender(self);

        if (settings.title) {
          headerHtml = (
            '<div id="' + id + '-head" class="' + prefix + 'window-head">' +
            '<div id="' + id + '-title" class="' + prefix + 'title">' + self.encode(settings.title) + '</div>' +
            '<div id="' + id + '-dragh" class="' + prefix + 'dragh"></div>' +
            '<button type="button" class="' + prefix + 'close" aria-hidden="true">' +
            '<i class="mce-ico mce-i-remove"></i>' +
            '</button>' +
            '</div>'
          );
        }

        if (settings.url) {
          html = '<iframe src="' + settings.url + '" tabindex="-1"></iframe>';
        }

        if (typeof html == "undefined") {
          html = layout.renderHtml(self);
        }

        if (self.statusbar) {
          footerHtml = self.statusbar.renderHtml();
        }

        return (
          '<div id="' + id + '" class="' + self.classes + '" hidefocus="1">' +
          '<div class="' + self.classPrefix + 'reset" role="application">' +
          headerHtml +
          '<div id="' + id + '-body" class="' + self.bodyClasses + '">' +
          html +
          '</div>' +
          footerHtml +
          '</div>' +
          '</div>'
        );
      },

      /**
       * Switches the window fullscreen mode.
       *
       * @method fullscreen
       * @param {Boolean} state True/false state.
       * @return {tinymce.ui.Window} Current window instance.
       */
      fullscreen: function (state) {
        var self = this, documentElement = document.documentElement, slowRendering, prefix = self.classPrefix, layoutRect;

        if (state != self._fullscreen) {
          $(window).on('resize', function () {
            var time;

            if (self._fullscreen) {
              // Time the layout time if it's to slow use a timeout to not hog the CPU
              if (!slowRendering) {
                time = new Date().getTime();

                var rect = DomUtils.getWindowSize();
                self.moveTo(0, 0).resizeTo(rect.w, rect.h);

                if ((new Date().getTime()) - time > 50) {
                  slowRendering = true;
                }
              } else {
                if (!self._timer) {
                  self._timer = Delay.setTimeout(function () {
                    var rect = DomUtils.getWindowSize();
                    self.moveTo(0, 0).resizeTo(rect.w, rect.h);

                    self._timer = 0;
                  }, 50);
                }
              }
            }
          });

          layoutRect = self.layoutRect();
          self._fullscreen = state;

          if (!state) {
            self.borderBox = BoxUtils.parseBox(self.settings.border);
            self.getEl('head').style.display = '';
            layoutRect.deltaH += layoutRect.headerH;
            $([documentElement, document.body]).removeClass(prefix + 'fullscreen');
            self.classes.remove('fullscreen');
            self.moveTo(self._initial.x, self._initial.y).resizeTo(self._initial.w, self._initial.h);
          } else {
            self._initial = { x: layoutRect.x, y: layoutRect.y, w: layoutRect.w, h: layoutRect.h };

            self.borderBox = BoxUtils.parseBox('0');
            self.getEl('head').style.display = 'none';
            layoutRect.deltaH -= layoutRect.headerH + 2;
            $([documentElement, document.body]).addClass(prefix + 'fullscreen');
            self.classes.add('fullscreen');

            var rect = DomUtils.getWindowSize();
            self.moveTo(0, 0).resizeTo(rect.w, rect.h);
          }
        }

        return self.reflow();
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this, startPos;

        setTimeout(function () {
          self.classes.add('in');
          self.fire('open');
        }, 0);

        self._super();

        if (self.statusbar) {
          self.statusbar.postRender();
        }

        self.focus();

        this.dragHelper = new DragHelper(self._id + '-dragh', {
          start: function () {
            startPos = {
              x: self.layoutRect().x,
              y: self.layoutRect().y
            };
          },

          drag: function (e) {
            self.moveTo(startPos.x + e.deltaX, startPos.y + e.deltaY);
          }
        });

        self.on('submit', function (e) {
          if (!e.isDefaultPrevented()) {
            self.close();
          }
        });

        windows.push(self);
        toggleFullScreenState(true);
      },

      /**
       * Fires a submit event with the serialized form.
       *
       * @method submit
       * @return {Object} Event arguments object.
       */
      submit: function () {
        return this.fire('submit', { data: this.toJSON() });
      },

      /**
       * Removes the current control from DOM and from UI collections.
       *
       * @method remove
       * @return {tinymce.ui.Control} Current control instance.
       */
      remove: function () {
        var self = this, i;

        self.dragHelper.destroy();
        self._super();

        if (self.statusbar) {
          this.statusbar.remove();
        }

        toggleBodyFullScreenClasses(self.classPrefix, false);

        i = windows.length;
        while (i--) {
          if (windows[i] === self) {
            windows.splice(i, 1);
          }
        }

        toggleFullScreenState(windows.length > 0);
      },

      /**
       * Returns the contentWindow object of the iframe if it exists.
       *
       * @method getContentWindow
       * @return {Window} window object or null.
       */
      getContentWindow: function () {
        var ifr = this.getEl().getElementsByTagName('iframe')[0];
        return ifr ? ifr.contentWindow : null;
      }
    });

    handleWindowResize();

    return Window;
  }
);
/**
 * MessageBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is used to create MessageBoxes like alerts/confirms etc.
 *
 * @class tinymce.ui.MessageBox
 * @extends tinymce.ui.FloatPanel
 */
define(
  'tinymce.core.ui.MessageBox',
  [
    "tinymce.core.ui.Window"
  ],
  function (Window) {
    "use strict";

    var MessageBox = Window.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        settings = {
          border: 1,
          padding: 20,
          layout: 'flex',
          pack: "center",
          align: "center",
          containerCls: 'panel',
          autoScroll: true,
          buttons: { type: "button", text: "Ok", action: "ok" },
          items: {
            type: "label",
            multiline: true,
            maxWidth: 500,
            maxHeight: 200
          }
        };

        this._super(settings);
      },

      Statics: {
        /**
         * Ok buttons constant.
         *
         * @static
         * @final
         * @field {Number} OK
         */
        OK: 1,

        /**
         * Ok/cancel buttons constant.
         *
         * @static
         * @final
         * @field {Number} OK_CANCEL
         */
        OK_CANCEL: 2,

        /**
         * yes/no buttons constant.
         *
         * @static
         * @final
         * @field {Number} YES_NO
         */
        YES_NO: 3,

        /**
         * yes/no/cancel buttons constant.
         *
         * @static
         * @final
         * @field {Number} YES_NO_CANCEL
         */
        YES_NO_CANCEL: 4,

        /**
         * Constructs a new message box and renders it to the body element.
         *
         * @static
         * @method msgBox
         * @param {Object} settings Name/value object with settings.
         */
        msgBox: function (settings) {
          var buttons, callback = settings.callback || function () { };

          function createButton(text, status, primary) {
            return {
              type: "button",
              text: text,
              subtype: primary ? 'primary' : '',
              onClick: function (e) {
                e.control.parents()[1].close();
                callback(status);
              }
            };
          }

          switch (settings.buttons) {
            case MessageBox.OK_CANCEL:
              buttons = [
                createButton('Ok', true, true),
                createButton('Cancel', false)
              ];
              break;

            case MessageBox.YES_NO:
            case MessageBox.YES_NO_CANCEL:
              buttons = [
                createButton('Yes', 1, true),
                createButton('No', 0)
              ];

              if (settings.buttons == MessageBox.YES_NO_CANCEL) {
                buttons.push(createButton('Cancel', -1));
              }
              break;

            default:
              buttons = [
                createButton('Ok', true, true)
              ];
              break;
          }

          return new Window({
            padding: 20,
            x: settings.x,
            y: settings.y,
            minWidth: 300,
            minHeight: 100,
            layout: "flex",
            pack: "center",
            align: "center",
            buttons: buttons,
            title: settings.title,
            role: 'alertdialog',
            items: {
              type: "label",
              multiline: true,
              maxWidth: 500,
              maxHeight: 200,
              text: settings.text
            },
            onPostRender: function () {
              this.aria('describedby', this.items()[0]._id);
            },
            onClose: settings.onClose,
            onCancel: function () {
              callback(false);
            }
          }).renderTo(document.body).reflow();
        },

        /**
         * Creates a new alert dialog.
         *
         * @method alert
         * @param {Object} settings Settings for the alert dialog.
         * @param {function} [callback] Callback to execute when the user makes a choice.
         */
        alert: function (settings, callback) {
          if (typeof settings == "string") {
            settings = { text: settings };
          }

          settings.callback = callback;
          return MessageBox.msgBox(settings);
        },

        /**
         * Creates a new confirm dialog.
         *
         * @method confirm
         * @param {Object} settings Settings for the confirm dialog.
         * @param {function} [callback] Callback to execute when the user makes a choice.
         */
        confirm: function (settings, callback) {
          if (typeof settings == "string") {
            settings = { text: settings };
          }

          settings.callback = callback;
          settings.buttons = MessageBox.OK_CANCEL;

          return MessageBox.msgBox(settings);
        }
      }
    });

    return MessageBox;
  }
);

/**
 * WindowManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles the creation of native windows and dialogs. This class can be extended to provide for example inline dialogs.
 *
 * @class tinymce.WindowManager
 * @example
 * // Opens a new dialog with the file.htm file and the size 320x240
 * // It also adds a custom parameter this can be retrieved by using tinyMCEPopup.getWindowArg inside the dialog.
 * tinymce.activeEditor.windowManager.open({
 *    url: 'file.htm',
 *    width: 320,
 *    height: 240
 * }, {
 *    custom_param: 1
 * });
 *
 * // Displays an alert box using the active editors window manager instance
 * tinymce.activeEditor.windowManager.alert('Hello world!');
 *
 * // Displays an confirm box and an alert message will be displayed depending on what you choose in the confirm
 * tinymce.activeEditor.windowManager.confirm("Do you want to do something", function(s) {
 *    if (s)
 *       tinymce.activeEditor.windowManager.alert("Ok");
 *    else
 *       tinymce.activeEditor.windowManager.alert("Cancel");
 * });
 */
define(
  'tinymce.core.WindowManager',
  [
    "tinymce.core.ui.Window",
    "tinymce.core.ui.MessageBox"
  ],
  function (Window, MessageBox) {
    return function (editor) {
      var self = this, windows = [];

      function getTopMostWindow() {
        if (windows.length) {
          return windows[windows.length - 1];
        }
      }

      function fireOpenEvent(win) {
        editor.fire('OpenWindow', {
          win: win
        });
      }

      function fireCloseEvent(win) {
        editor.fire('CloseWindow', {
          win: win
        });
      }

      self.windows = windows;

      editor.on('remove', function () {
        var i = windows.length;

        while (i--) {
          windows[i].close();
        }
      });

      /**
       * Opens a new window.
       *
       * @method open
       * @param {Object} args Optional name/value settings collection contains things like width/height/url etc.
       * @param {Object} params Options like title, file, width, height etc.
       * @option {String} title Window title.
       * @option {String} file URL of the file to open in the window.
       * @option {Number} width Width in pixels.
       * @option {Number} height Height in pixels.
       * @option {Boolean} autoScroll Specifies whether the popup window can have scrollbars if required (i.e. content
       * larger than the popup size specified).
       */
      self.open = function (args, params) {
        var win;

        editor.editorManager.setActive(editor);

        args.title = args.title || ' ';

        // Handle URL
        args.url = args.url || args.file; // Legacy
        if (args.url) {
          args.width = parseInt(args.width || 320, 10);
          args.height = parseInt(args.height || 240, 10);
        }

        // Handle body
        if (args.body) {
          args.items = {
            defaults: args.defaults,
            type: args.bodyType || 'form',
            items: args.body,
            data: args.data,
            callbacks: args.commands
          };
        }

        if (!args.url && !args.buttons) {
          args.buttons = [
            {
              text: 'Ok', subtype: 'primary', onclick: function () {
                win.find('form')[0].submit();
              }
            },

            {
              text: 'Cancel', onclick: function () {
                win.close();
              }
            }
          ];
        }

        win = new Window(args);
        windows.push(win);

        win.on('close', function () {
          var i = windows.length;

          while (i--) {
            if (windows[i] === win) {
              windows.splice(i, 1);
            }
          }

          if (!windows.length) {
            editor.focus();
          }

          fireCloseEvent(win);
        });

        // Handle data
        if (args.data) {
          win.on('postRender', function () {
            this.find('*').each(function (ctrl) {
              var name = ctrl.name();

              if (name in args.data) {
                ctrl.value(args.data[name]);
              }
            });
          });
        }

        // store args and parameters
        win.features = args || {};
        win.params = params || {};

        // Takes a snapshot in the FocusManager of the selection before focus is lost to dialog
        if (windows.length === 1) {
          editor.nodeChanged();
        }

        win = win.renderTo().reflow();

        fireOpenEvent(win);

        return win;
      };

      /**
       * Creates a alert dialog. Please don't use the blocking behavior of this
       * native version use the callback method instead then it can be extended.
       *
       * @method alert
       * @param {String} message Text to display in the new alert dialog.
       * @param {function} callback Callback function to be executed after the user has selected ok.
       * @param {Object} scope Optional scope to execute the callback in.
       * @example
       * // Displays an alert box using the active editors window manager instance
       * tinymce.activeEditor.windowManager.alert('Hello world!');
       */
      self.alert = function (message, callback, scope) {
        var win;

        win = MessageBox.alert(message, function () {
          if (callback) {
            callback.call(scope || this);
          } else {
            editor.focus();
          }
        });

        win.on('close', function () {
          fireCloseEvent(win);
        });

        fireOpenEvent(win);
      };

      /**
       * Creates a confirm dialog. Please don't use the blocking behavior of this
       * native version use the callback method instead then it can be extended.
       *
       * @method confirm
       * @param {String} message Text to display in the new confirm dialog.
       * @param {function} callback Callback function to be executed after the user has selected ok or cancel.
       * @param {Object} scope Optional scope to execute the callback in.
       * @example
       * // Displays an confirm box and an alert message will be displayed depending on what you choose in the confirm
       * tinymce.activeEditor.windowManager.confirm("Do you want to do something", function(s) {
       *    if (s)
       *       tinymce.activeEditor.windowManager.alert("Ok");
       *    else
       *       tinymce.activeEditor.windowManager.alert("Cancel");
       * });
       */
      self.confirm = function (message, callback, scope) {
        var win;

        win = MessageBox.confirm(message, function (state) {
          callback.call(scope || this, state);
        });

        win.on('close', function () {
          fireCloseEvent(win);
        });

        fireOpenEvent(win);
      };

      /**
       * Closes the top most window.
       *
       * @method close
       */
      self.close = function () {
        if (getTopMostWindow()) {
          getTopMostWindow().close();
        }
      };

      /**
       * Returns the params of the last window open call. This can be used in iframe based
       * dialog to get params passed from the tinymce plugin.
       *
       * @example
       * var dialogArguments = top.tinymce.activeEditor.windowManager.getParams();
       *
       * @method getParams
       * @return {Object} Name/value object with parameters passed from windowManager.open call.
       */
      self.getParams = function () {
        return getTopMostWindow() ? getTopMostWindow().params : null;
      };

      /**
       * Sets the params of the last opened window.
       *
       * @method setParams
       * @param {Object} params Params object to set for the last opened window.
       */
      self.setParams = function (params) {
        if (getTopMostWindow()) {
          getTopMostWindow().params = params;
        }
      };

      /**
       * Returns the currently opened window objects.
       *
       * @method getWindows
       * @return {Array} Array of the currently opened windows.
       */
      self.getWindows = function () {
        return windows;
      };
    };
  }
);

/**
 * Tooltip.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a tooltip instance.
 *
 * @-x-less ToolTip.less
 * @class tinymce.ui.ToolTip
 * @extends tinymce.ui.Control
 * @mixes tinymce.ui.Movable
 */
define(
  'tinymce.core.ui.Tooltip',
  [
    "tinymce.core.ui.Control",
    "tinymce.core.ui.Movable"
  ],
  function (Control, Movable) {
    return Control.extend({
      Mixins: [Movable],

      Defaults: {
        classes: 'widget tooltip tooltip-n'
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, prefix = self.classPrefix;

        return (
          '<div id="' + self._id + '" class="' + self.classes + '" role="presentation">' +
          '<div class="' + prefix + 'tooltip-arrow"></div>' +
          '<div class="' + prefix + 'tooltip-inner">' + self.encode(self.state.get('text')) + '</div>' +
          '</div>'
        );
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:text', function (e) {
          self.getEl().lastChild.innerHTML = self.encode(e.value);
        });

        return self._super();
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this, style, rect;

        style = self.getEl().style;
        rect = self._layoutRect;

        style.left = rect.x + 'px';
        style.top = rect.y + 'px';
        style.zIndex = 0xFFFF + 0xFFFF;
      }
    });
  }
);
/**
 * Widget.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Widget base class a widget is a control that has a tooltip and some basic states.
 *
 * @class tinymce.ui.Widget
 * @extends tinymce.ui.Control
 */
define(
  'tinymce.core.ui.Widget',
  [
    "tinymce.core.ui.Control",
    "tinymce.core.ui.Tooltip"
  ],
  function (Control, Tooltip) {
    "use strict";

    var tooltip;

    var Widget = Control.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {String} tooltip Tooltip text to display when hovering.
       * @setting {Boolean} autofocus True if the control should be focused when rendered.
       * @setting {String} text Text to display inside widget.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        settings = self.settings;
        self.canFocus = true;

        if (settings.tooltip && Widget.tooltips !== false) {
          self.on('mouseenter', function (e) {
            var tooltip = self.tooltip().moveTo(-0xFFFF);

            if (e.control == self) {
              var rel = tooltip.text(settings.tooltip).show().testMoveRel(self.getEl(), ['bc-tc', 'bc-tl', 'bc-tr']);

              tooltip.classes.toggle('tooltip-n', rel == 'bc-tc');
              tooltip.classes.toggle('tooltip-nw', rel == 'bc-tl');
              tooltip.classes.toggle('tooltip-ne', rel == 'bc-tr');

              tooltip.moveRel(self.getEl(), rel);
            } else {
              tooltip.hide();
            }
          });

          self.on('mouseleave mousedown click', function () {
            self.tooltip().hide();
          });
        }

        self.aria('label', settings.ariaLabel || settings.tooltip);
      },

      /**
       * Returns the current tooltip instance.
       *
       * @method tooltip
       * @return {tinymce.ui.Tooltip} Tooltip instance.
       */
      tooltip: function () {
        if (!tooltip) {
          tooltip = new Tooltip({ type: 'tooltip' });
          tooltip.renderTo();
        }

        return tooltip;
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this, settings = self.settings;

        self._super();

        if (!self.parent() && (settings.width || settings.height)) {
          self.initLayoutRect();
          self.repaint();
        }

        if (settings.autofocus) {
          self.focus();
        }
      },

      bindStates: function () {
        var self = this;

        function disable(state) {
          self.aria('disabled', state);
          self.classes.toggle('disabled', state);
        }

        function active(state) {
          self.aria('pressed', state);
          self.classes.toggle('active', state);
        }

        self.state.on('change:disabled', function (e) {
          disable(e.value);
        });

        self.state.on('change:active', function (e) {
          active(e.value);
        });

        if (self.state.get('disabled')) {
          disable(true);
        }

        if (self.state.get('active')) {
          active(true);
        }

        return self._super();
      },

      /**
       * Removes the current control from DOM and from UI collections.
       *
       * @method remove
       * @return {tinymce.ui.Control} Current control instance.
       */
      remove: function () {
        this._super();

        if (tooltip) {
          tooltip.remove();
          tooltip = null;
        }
      }
    });

    return Widget;
  }
);

/**
 * Progress.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Progress control.
 *
 * @-x-less Progress.less
 * @class tinymce.ui.Progress
 * @extends tinymce.ui.Control
 */
define(
  'tinymce.core.ui.Progress',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    return Widget.extend({
      Defaults: {
        value: 0
      },

      init: function (settings) {
        var self = this;

        self._super(settings);
        self.classes.add('progress');

        if (!self.settings.filter) {
          self.settings.filter = function (value) {
            return Math.round(value);
          };
        }
      },

      renderHtml: function () {
        var self = this, id = self._id, prefix = this.classPrefix;

        return (
          '<div id="' + id + '" class="' + self.classes + '">' +
          '<div class="' + prefix + 'bar-container">' +
          '<div class="' + prefix + 'bar"></div>' +
          '</div>' +
          '<div class="' + prefix + 'text">0%</div>' +
          '</div>'
        );
      },

      postRender: function () {
        var self = this;

        self._super();
        self.value(self.settings.value);

        return self;
      },

      bindStates: function () {
        var self = this;

        function setValue(value) {
          value = self.settings.filter(value);
          self.getEl().lastChild.innerHTML = value + '%';
          self.getEl().firstChild.firstChild.style.width = value + '%';
        }

        self.state.on('change:value', function (e) {
          setValue(e.value);
        });

        setValue(self.state.get('value'));

        return self._super();
      }
    });
  }
);
/**
 * Notification.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a notification instance.
 *
 * @-x-less Notification.less
 * @class tinymce.ui.Notification
 * @extends tinymce.ui.Container
 * @mixes tinymce.ui.Movable
 */
define(
  'tinymce.core.ui.Notification',
  [
    "tinymce.core.ui.Control",
    "tinymce.core.ui.Movable",
    "tinymce.core.ui.Progress",
    "tinymce.core.util.Delay"
  ],
  function (Control, Movable, Progress, Delay) {
    return Control.extend({
      Mixins: [Movable],

      Defaults: {
        classes: 'widget notification'
      },

      init: function (settings) {
        var self = this;

        self._super(settings);

        if (settings.text) {
          self.text(settings.text);
        }

        if (settings.icon) {
          self.icon = settings.icon;
        }

        if (settings.color) {
          self.color = settings.color;
        }

        if (settings.type) {
          self.classes.add('notification-' + settings.type);
        }

        if (settings.timeout && (settings.timeout < 0 || settings.timeout > 0) && !settings.closeButton) {
          self.closeButton = false;
        } else {
          self.classes.add('has-close');
          self.closeButton = true;
        }

        if (settings.progressBar) {
          self.progressBar = new Progress();
        }

        self.on('click', function (e) {
          if (e.target.className.indexOf(self.classPrefix + 'close') != -1) {
            self.close();
          }
        });
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, prefix = self.classPrefix, icon = '', closeButton = '', progressBar = '', notificationStyle = '';

        if (self.icon) {
          icon = '<i class="' + prefix + 'ico' + ' ' + prefix + 'i-' + self.icon + '"></i>';
        }

        if (self.color) {
          notificationStyle = ' style="background-color: ' + self.color + '"';
        }

        if (self.closeButton) {
          closeButton = '<button type="button" class="' + prefix + 'close" aria-hidden="true">\u00d7</button>';
        }

        if (self.progressBar) {
          progressBar = self.progressBar.renderHtml();
        }

        return (
          '<div id="' + self._id + '" class="' + self.classes + '"' + notificationStyle + ' role="presentation">' +
          icon +
          '<div class="' + prefix + 'notification-inner">' + self.state.get('text') + '</div>' +
          progressBar +
          closeButton +
          '</div>'
        );
      },

      postRender: function () {
        var self = this;

        Delay.setTimeout(function () {
          self.$el.addClass(self.classPrefix + 'in');
        });

        return self._super();
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:text', function (e) {
          self.getEl().childNodes[1].innerHTML = e.value;
        });
        if (self.progressBar) {
          self.progressBar.bindStates();
        }
        return self._super();
      },

      close: function () {
        var self = this;

        if (!self.fire('close').isDefaultPrevented()) {
          self.remove();
        }

        return self;
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this, style, rect;

        style = self.getEl().style;
        rect = self._layoutRect;

        style.left = rect.x + 'px';
        style.top = rect.y + 'px';

        // Hardcoded arbitrary z-value because we want the
        // notifications under the other windows
        style.zIndex = 0xFFFF - 1;
      }
    });
  }
);
/**
 * NotificationManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles the creation of TinyMCE's notifications.
 *
 * @class tinymce.NotificationManager
 * @example
 * // Opens a new notification of type "error" with text "An error occurred."
 * tinymce.activeEditor.notificationManager.open({
 *    text: 'An error occurred.',
 *    type: 'error'
 * });
 */
define(
  'tinymce.core.NotificationManager',
  [
    "tinymce.core.ui.Notification",
    "tinymce.core.util.Delay",
    "tinymce.core.util.Tools"
  ],
  function (Notification, Delay, Tools) {
    return function (editor) {
      var self = this, notifications = [];

      function getLastNotification() {
        if (notifications.length) {
          return notifications[notifications.length - 1];
        }
      }

      self.notifications = notifications;

      function resizeWindowEvent() {
        Delay.requestAnimationFrame(function () {
          prePositionNotifications();
          positionNotifications();
        });
      }

      // Since the viewport will change based on the present notifications, we need to move them all to the
      // top left of the viewport to give an accurate size measurement so we can position them later.
      function prePositionNotifications() {
        for (var i = 0; i < notifications.length; i++) {
          notifications[i].moveTo(0, 0);
        }
      }

      function positionNotifications() {
        if (notifications.length > 0) {
          var firstItem = notifications.slice(0, 1)[0];
          var container = editor.inline ? editor.getElement() : editor.getContentAreaContainer();
          firstItem.moveRel(container, 'tc-tc');
          if (notifications.length > 1) {
            for (var i = 1; i < notifications.length; i++) {
              notifications[i].moveRel(notifications[i - 1].getEl(), 'bc-tc');
            }
          }
        }
      }

      editor.on('remove', function () {
        var i = notifications.length;

        while (i--) {
          notifications[i].close();
        }
      });

      editor.on('ResizeEditor', positionNotifications);
      editor.on('ResizeWindow', resizeWindowEvent);

      /**
       * Opens a new notification.
       *
       * @method open
       * @param {Object} args Optional name/value settings collection contains things like timeout/color/message etc.
       */
      self.open = function (args) {
        // Never open notification if editor has been removed.
        if (editor.removed) {
          return;
        }

        var notif;

        editor.editorManager.setActive(editor);

        var duplicate = findDuplicateMessage(notifications, args);

        if (duplicate === null) {
          notif = new Notification(args);
          notifications.push(notif);

          //If we have a timeout value
          if (args.timeout > 0) {
            notif.timer = setTimeout(function () {
              notif.close();
            }, args.timeout);
          }

          notif.on('close', function () {
            var i = notifications.length;

            if (notif.timer) {
              editor.getWin().clearTimeout(notif.timer);
            }

            while (i--) {
              if (notifications[i] === notif) {
                notifications.splice(i, 1);
              }
            }

            positionNotifications();
          });

          notif.renderTo();

          positionNotifications();
        } else {
          notif = duplicate;
        }

        return notif;
      };

      /**
       * Closes the top most notification.
       *
       * @method close
       */
      self.close = function () {
        if (getLastNotification()) {
          getLastNotification().close();
        }
      };

      /**
       * Returns the currently opened notification objects.
       *
       * @method getNotifications
       * @return {Array} Array of the currently opened notifications.
       */
      self.getNotifications = function () {
        return notifications;
      };

      editor.on('SkinLoaded', function () {
        var serviceMessage = editor.settings.service_message;

        if (serviceMessage) {
          editor.notificationManager.open({
            text: serviceMessage,
            type: 'warning',
            timeout: 0,
            icon: ''
          });
        }
      });

      /**
       * Finds any existing notification with the same properties as the new one.
       * Returns either the found notification or null.
       *
       * @param {Notification[]} notificationArray - Array of current notifications
       * @param {type: string, } newNotification - New notification object
       * @returns {?Notification}
       */
      function findDuplicateMessage(notificationArray, newNotification) {
        if (!isPlainTextNotification(newNotification)) {
          return null;
        }

        var filteredNotifications = Tools.grep(notificationArray, function (notification) {
          return isSameNotification(newNotification, notification);
        });

        return filteredNotifications.length === 0 ? null : filteredNotifications[0];
      }

      /**
       * Checks if the passed in args object has the same
       * type and text properties as the sent in notification.
       *
       * @param {type: string, text: string} a - New notification args object
       * @param {Notification} b - Old notification
       * @returns {boolean}
       */
      function isSameNotification(a, b) {
        return a.type === b.settings.type && a.text === b.settings.text;
      }

      /**
       * Checks that the notification does not have a progressBar
       * or timeour property.
       *
       * @param {Notification} notification - Notification to check
       * @returns {boolean}
       */
      function isPlainTextNotification(notification) {
        return !notification.progressBar && !notification.timeout;
      }

      //self.positionNotifications = positionNotifications;
    };
  }
);

/**
 * EditorObservable.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This mixin contains the event logic for the tinymce.Editor class.
 *
 * @mixin tinymce.EditorObservable
 * @extends tinymce.util.Observable
 */
define(
  'tinymce.core.EditorObservable',
  [
    "tinymce.core.util.Observable",
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.util.Tools"
  ],
  function (Observable, DOMUtils, Tools) {
    var DOM = DOMUtils.DOM, customEventRootDelegates;

    /**
     * Returns the event target so for the specified event. Some events fire
     * only on document, some fire on documentElement etc. This also handles the
     * custom event root setting where it returns that element instead of the body.
     *
     * @private
     * @param {tinymce.Editor} editor Editor instance to get event target from.
     * @param {String} eventName Name of the event for example "click".
     * @return {Element/Document} HTML Element or document target to bind on.
     */
    function getEventTarget(editor, eventName) {
      if (eventName == 'selectionchange') {
        return editor.getDoc();
      }

      // Need to bind mousedown/mouseup etc to document not body in iframe mode
      // Since the user might click on the HTML element not the BODY
      if (!editor.inline && /^mouse|touch|click|contextmenu|drop|dragover|dragend/.test(eventName)) {
        return editor.getDoc().documentElement;
      }

      // Bind to event root instead of body if it's defined
      if (editor.settings.event_root) {
        if (!editor.eventRoot) {
          editor.eventRoot = DOM.select(editor.settings.event_root)[0];
        }

        return editor.eventRoot;
      }

      return editor.getBody();
    }

    /**
     * Binds a event delegate for the specified name this delegate will fire
     * the event to the editor dispatcher.
     *
     * @private
     * @param {tinymce.Editor} editor Editor instance to get event target from.
     * @param {String} eventName Name of the event for example "click".
     */
    function bindEventDelegate(editor, eventName) {
      var eventRootElm, delegate;

      function isListening(editor) {
        return !editor.hidden && !editor.readonly;
      }

      if (!editor.delegates) {
        editor.delegates = {};
      }

      if (editor.delegates[eventName] || editor.removed) {
        return;
      }

      eventRootElm = getEventTarget(editor, eventName);

      if (editor.settings.event_root) {
        if (!customEventRootDelegates) {
          customEventRootDelegates = {};
          editor.editorManager.on('removeEditor', function () {
            var name;

            if (!editor.editorManager.activeEditor) {
              if (customEventRootDelegates) {
                for (name in customEventRootDelegates) {
                  editor.dom.unbind(getEventTarget(editor, name));
                }

                customEventRootDelegates = null;
              }
            }
          });
        }

        if (customEventRootDelegates[eventName]) {
          return;
        }

        delegate = function (e) {
          var target = e.target, editors = editor.editorManager.editors, i = editors.length;

          while (i--) {
            var body = editors[i].getBody();

            if (body === target || DOM.isChildOf(target, body)) {
              if (isListening(editors[i])) {
                editors[i].fire(eventName, e);
              }
            }
          }
        };

        customEventRootDelegates[eventName] = delegate;
        DOM.bind(eventRootElm, eventName, delegate);
      } else {
        delegate = function (e) {
          if (isListening(editor)) {
            editor.fire(eventName, e);
          }
        };

        DOM.bind(eventRootElm, eventName, delegate);
        editor.delegates[eventName] = delegate;
      }
    }

    var EditorObservable = {
      /**
       * Bind any pending event delegates. This gets executed after the target body/document is created.
       *
       * @private
       */
      bindPendingEventDelegates: function () {
        var self = this;

        Tools.each(self._pendingNativeEvents, function (name) {
          bindEventDelegate(self, name);
        });
      },

      /**
       * Toggles a native event on/off this is called by the EventDispatcher when
       * the first native event handler is added and when the last native event handler is removed.
       *
       * @private
       */
      toggleNativeEvent: function (name, state) {
        var self = this;

        // Never bind focus/blur since the FocusManager fakes those
        if (name == "focus" || name == "blur") {
          return;
        }

        if (state) {
          if (self.initialized) {
            bindEventDelegate(self, name);
          } else {
            if (!self._pendingNativeEvents) {
              self._pendingNativeEvents = [name];
            } else {
              self._pendingNativeEvents.push(name);
            }
          }
        } else if (self.initialized) {
          self.dom.unbind(getEventTarget(self, name), name, self.delegates[name]);
          delete self.delegates[name];
        }
      },

      /**
       * Unbinds all native event handlers that means delegates, custom events bound using the Events API etc.
       *
       * @private
       */
      unbindAllNativeEvents: function () {
        var self = this, name;

        if (self.delegates) {
          for (name in self.delegates) {
            self.dom.unbind(getEventTarget(self, name), name, self.delegates[name]);
          }

          delete self.delegates;
        }

        if (!self.inline) {
          self.getBody().onload = null;
          self.dom.unbind(self.getWin());
          self.dom.unbind(self.getDoc());
        }

        self.dom.unbind(self.getBody());
        self.dom.unbind(self.getContainer());
      }
    };

    EditorObservable = Tools.extend({}, Observable, EditorObservable);

    return EditorObservable;
  }
);

/**
 * Shortcuts.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Contains all logic for handling of keyboard shortcuts.
 *
 * @class tinymce.Shortcuts
 * @example
 * editor.shortcuts.add('ctrl+a', function() {});
 * editor.shortcuts.add('meta+a', function() {}); // "meta" maps to Command on Mac and Ctrl on PC
 * editor.shortcuts.add('ctrl+alt+a', function() {});
 * editor.shortcuts.add('access+a', function() {}); // "access" maps to ctrl+alt on Mac and shift+alt on PC
 */
define(
  'tinymce.core.Shortcuts',
  [
    "tinymce.core.util.Tools",
    "tinymce.core.Env"
  ],
  function (Tools, Env) {
    var each = Tools.each, explode = Tools.explode;

    var keyCodeLookup = {
      "f9": 120,
      "f10": 121,
      "f11": 122
    };

    var modifierNames = Tools.makeMap('alt,ctrl,shift,meta,access');

    return function (editor) {
      var self = this, shortcuts = {}, pendingPatterns = [];

      function parseShortcut(pattern) {
        var id, key, shortcut = {};

        // Parse modifiers and keys ctrl+alt+b for example
        each(explode(pattern, '+'), function (value) {
          if (value in modifierNames) {
            shortcut[value] = true;
          } else {
            // Allow numeric keycodes like ctrl+219 for ctrl+[
            if (/^[0-9]{2,}$/.test(value)) {
              shortcut.keyCode = parseInt(value, 10);
            } else {
              shortcut.charCode = value.charCodeAt(0);
              shortcut.keyCode = keyCodeLookup[value] || value.toUpperCase().charCodeAt(0);
            }
          }
        });

        // Generate unique id for modifier combination and set default state for unused modifiers
        id = [shortcut.keyCode];
        for (key in modifierNames) {
          if (shortcut[key]) {
            id.push(key);
          } else {
            shortcut[key] = false;
          }
        }
        shortcut.id = id.join(',');

        // Handle special access modifier differently depending on Mac/Win
        if (shortcut.access) {
          shortcut.alt = true;

          if (Env.mac) {
            shortcut.ctrl = true;
          } else {
            shortcut.shift = true;
          }
        }

        // Handle special meta modifier differently depending on Mac/Win
        if (shortcut.meta) {
          if (Env.mac) {
            shortcut.meta = true;
          } else {
            shortcut.ctrl = true;
            shortcut.meta = false;
          }
        }

        return shortcut;
      }

      function createShortcut(pattern, desc, cmdFunc, scope) {
        var shortcuts;

        shortcuts = Tools.map(explode(pattern, '>'), parseShortcut);
        shortcuts[shortcuts.length - 1] = Tools.extend(shortcuts[shortcuts.length - 1], {
          func: cmdFunc,
          scope: scope || editor
        });

        return Tools.extend(shortcuts[0], {
          desc: editor.translate(desc),
          subpatterns: shortcuts.slice(1)
        });
      }

      function hasModifier(e) {
        return e.altKey || e.ctrlKey || e.metaKey;
      }

      function isFunctionKey(e) {
        return e.type === "keydown" && e.keyCode >= 112 && e.keyCode <= 123;
      }

      function matchShortcut(e, shortcut) {
        if (!shortcut) {
          return false;
        }

        if (shortcut.ctrl != e.ctrlKey || shortcut.meta != e.metaKey) {
          return false;
        }

        if (shortcut.alt != e.altKey || shortcut.shift != e.shiftKey) {
          return false;
        }

        if (e.keyCode == shortcut.keyCode || (e.charCode && e.charCode == shortcut.charCode)) {
          e.preventDefault();
          return true;
        }

        return false;
      }

      function executeShortcutAction(shortcut) {
        return shortcut.func ? shortcut.func.call(shortcut.scope) : null;
      }

      editor.on('keyup keypress keydown', function (e) {
        if ((hasModifier(e) || isFunctionKey(e)) && !e.isDefaultPrevented()) {
          each(shortcuts, function (shortcut) {
            if (matchShortcut(e, shortcut)) {
              pendingPatterns = shortcut.subpatterns.slice(0);

              if (e.type == "keydown") {
                executeShortcutAction(shortcut);
              }

              return true;
            }
          });

          if (matchShortcut(e, pendingPatterns[0])) {
            if (pendingPatterns.length === 1) {
              if (e.type == "keydown") {
                executeShortcutAction(pendingPatterns[0]);
              }
            }

            pendingPatterns.shift();
          }
        }
      });

      /**
       * Adds a keyboard shortcut for some command or function.
       *
       * @method add
       * @param {String} pattern Shortcut pattern. Like for example: ctrl+alt+o.
       * @param {String} desc Text description for the command.
       * @param {String/Function} cmdFunc Command name string or function to execute when the key is pressed.
       * @param {Object} scope Optional scope to execute the function in.
       * @return {Boolean} true/false state if the shortcut was added or not.
       */
      self.add = function (pattern, desc, cmdFunc, scope) {
        var cmd;

        cmd = cmdFunc;

        if (typeof cmdFunc === 'string') {
          cmdFunc = function () {
            editor.execCommand(cmd, false, null);
          };
        } else if (Tools.isArray(cmd)) {
          cmdFunc = function () {
            editor.execCommand(cmd[0], cmd[1], cmd[2]);
          };
        }

        each(explode(Tools.trim(pattern.toLowerCase())), function (pattern) {
          var shortcut = createShortcut(pattern, desc, cmdFunc, scope);
          shortcuts[shortcut.id] = shortcut;
        });

        return true;
      };

      /**
       * Remove a keyboard shortcut by pattern.
       *
       * @method remove
       * @param {String} pattern Shortcut pattern. Like for example: ctrl+alt+o.
       * @return {Boolean} true/false state if the shortcut was removed or not.
       */
      self.remove = function (pattern) {
        var shortcut = createShortcut(pattern);

        if (shortcuts[shortcut.id]) {
          delete shortcuts[shortcut.id];
          return true;
        }

        return false;
      };
    };
  }
);

defineGlobal("global!window", window);
/**
 * ErrorReporter.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Various error reporting helper functions.
 *
 * @class tinymce.ErrorReporter
 * @private
 */
define(
  'tinymce.core.ErrorReporter',
  [
    "tinymce.core.AddOnManager"
  ],
  function (AddOnManager) {
    var PluginManager = AddOnManager.PluginManager;

    var resolvePluginName = function (targetUrl, suffix) {
      for (var name in PluginManager.urls) {
        var matchUrl = PluginManager.urls[name] + '/plugin' + suffix + '.js';
        if (matchUrl === targetUrl) {
          return name;
        }
      }

      return null;
    };

    var pluginUrlToMessage = function (editor, url) {
      var plugin = resolvePluginName(url, editor.suffix);
      return plugin ?
        'Failed to load plugin: ' + plugin + ' from url ' + url :
        'Failed to load plugin url: ' + url;
    };

    var displayNotification = function (editor, message) {
      editor.notificationManager.open({
        type: 'error',
        text: message
      });
    };

    var displayError = function (editor, message) {
      if (editor._skinLoaded) {
        displayNotification(editor, message);
      } else {
        editor.on('SkinLoaded', function () {
          displayNotification(editor, message);
        });
      }
    };

    var uploadError = function (editor, message) {
      displayError(editor, 'Failed to upload image: ' + message);
    };

    var pluginLoadError = function (editor, url) {
      displayError(editor, pluginUrlToMessage(editor, url));
    };

    var contentCssError = function (editor, urls) {
      displayError(editor, 'Failed to load content css: ' + urls[0]);
    };

    var initError = function (message) {
      var console = window.console;
      if (console && !window.test) { // Skip test env
        if (console.error) {
          console.error.apply(console, arguments);
        } else {
          console.log.apply(console, arguments);
        }
      }
    };

    return {
      pluginLoadError: pluginLoadError,
      uploadError: uploadError,
      displayError: displayError,
      contentCssError: contentCssError,
      initError: initError
    };
  }
);
/**
 * CaretContainerInput.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module shows the invisble block that the caret is currently in when contents is added to that block.
 */
define(
  'tinymce.core.caret.CaretContainerInput',
  [
    'ephox.katamari.api.Fun',
    'tinymce.core.caret.CaretContainer'
  ],
  function (Fun, CaretContainer) {
    var findBlockCaretContainer = function (editor) {
      return editor.dom.select('*[data-mce-caret]')[0];
    };

    var removeIeControlRect = function (editor) {
      editor.selection.setRng(editor.selection.getRng());
    };

    var showBlockCaretContainer = function (editor, blockCaretContainer) {
      if (blockCaretContainer.hasAttribute('data-mce-caret')) {
        CaretContainer.showCaretContainerBlock(blockCaretContainer);
        removeIeControlRect(editor);
        editor.selection.scrollIntoView(blockCaretContainer);
      }
    };

    var handleBlockContainer = function (editor, e) {
      var blockCaretContainer = findBlockCaretContainer(editor);

      if (!blockCaretContainer) {
        return;
      }

      if (e.type === 'compositionstart') {
        e.preventDefault();
        e.stopPropagation();
        showBlockCaretContainer(blockCaretContainer);
        return;
      }

      if (CaretContainer.hasContent(blockCaretContainer)) {
        showBlockCaretContainer(editor, blockCaretContainer);
      }
    };

    var setup = function (editor) {
      editor.on('keyup compositionstart', Fun.curry(handleBlockContainer, editor));
    };

    return {
      setup: setup
    };
  }
);
/**
 * Uploader.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Upload blobs or blob infos to the specified URL or handler.
 *
 * @private
 * @class tinymce.file.Uploader
 * @example
 * var uploader = new Uploader({
 *     url: '/upload.php',
 *     basePath: '/base/path',
 *     credentials: true,
 *     handler: function(data, success, failure) {
 *         ...
 *     }
 * });
 *
 * uploader.upload(blobInfos).then(function(result) {
 *     ...
 * });
 */
define(
  'tinymce.core.file.Uploader',
  [
    "tinymce.core.util.Promise",
    "tinymce.core.util.Tools",
    "tinymce.core.util.Fun"
  ],
  function (Promise, Tools, Fun) {
    return function (uploadStatus, settings) {
      var pendingPromises = {};

      function pathJoin(path1, path2) {
        if (path1) {
          return path1.replace(/\/$/, '') + '/' + path2.replace(/^\//, '');
        }

        return path2;
      }

      function defaultHandler(blobInfo, success, failure, progress) {
        var xhr, formData;

        xhr = new XMLHttpRequest();
        xhr.open('POST', settings.url);
        xhr.withCredentials = settings.credentials;

        xhr.upload.onprogress = function (e) {
          progress(e.loaded / e.total * 100);
        };

        xhr.onerror = function () {
          failure("Image upload failed due to a XHR Transport error. Code: " + xhr.status);
        };

        xhr.onload = function () {
          var json;

          if (xhr.status != 200) {
            failure("HTTP Error: " + xhr.status);
            return;
          }

          json = JSON.parse(xhr.responseText);

          if (!json || typeof json.location != "string") {
            failure("Invalid JSON: " + xhr.responseText);
            return;
          }

          success(pathJoin(settings.basePath, json.location));
        };

        formData = new FormData();
        formData.append('file', blobInfo.blob(), blobInfo.filename());

        xhr.send(formData);
      }

      function noUpload() {
        return new Promise(function (resolve) {
          resolve([]);
        });
      }

      function handlerSuccess(blobInfo, url) {
        return {
          url: url,
          blobInfo: blobInfo,
          status: true
        };
      }

      function handlerFailure(blobInfo, error) {
        return {
          url: '',
          blobInfo: blobInfo,
          status: false,
          error: error
        };
      }

      function resolvePending(blobUri, result) {
        Tools.each(pendingPromises[blobUri], function (resolve) {
          resolve(result);
        });

        delete pendingPromises[blobUri];
      }

      function uploadBlobInfo(blobInfo, handler, openNotification) {
        uploadStatus.markPending(blobInfo.blobUri());

        return new Promise(function (resolve) {
          var notification, progress;

          var noop = function () {
          };

          try {
            var closeNotification = function () {
              if (notification) {
                notification.close();
                progress = noop; // Once it's closed it's closed
              }
            };

            var success = function (url) {
              closeNotification();
              uploadStatus.markUploaded(blobInfo.blobUri(), url);
              resolvePending(blobInfo.blobUri(), handlerSuccess(blobInfo, url));
              resolve(handlerSuccess(blobInfo, url));
            };

            var failure = function (error) {
              closeNotification();
              uploadStatus.removeFailed(blobInfo.blobUri());
              resolvePending(blobInfo.blobUri(), handlerFailure(blobInfo, error));
              resolve(handlerFailure(blobInfo, error));
            };

            progress = function (percent) {
              if (percent < 0 || percent > 100) {
                return;
              }

              if (!notification) {
                notification = openNotification();
              }

              notification.progressBar.value(percent);
            };

            handler(blobInfo, success, failure, progress);
          } catch (ex) {
            resolve(handlerFailure(blobInfo, ex.message));
          }
        });
      }

      function isDefaultHandler(handler) {
        return handler === defaultHandler;
      }

      function pendingUploadBlobInfo(blobInfo) {
        var blobUri = blobInfo.blobUri();

        return new Promise(function (resolve) {
          pendingPromises[blobUri] = pendingPromises[blobUri] || [];
          pendingPromises[blobUri].push(resolve);
        });
      }

      function uploadBlobs(blobInfos, openNotification) {
        blobInfos = Tools.grep(blobInfos, function (blobInfo) {
          return !uploadStatus.isUploaded(blobInfo.blobUri());
        });

        return Promise.all(Tools.map(blobInfos, function (blobInfo) {
          return uploadStatus.isPending(blobInfo.blobUri()) ?
            pendingUploadBlobInfo(blobInfo) : uploadBlobInfo(blobInfo, settings.handler, openNotification);
        }));
      }

      function upload(blobInfos, openNotification) {
        return (!settings.url && isDefaultHandler(settings.handler)) ? noUpload() : uploadBlobs(blobInfos, openNotification);
      }

      settings = Tools.extend({
        credentials: false,
        // We are adding a notify argument to this (at the moment, until it doesn't work)
        handler: defaultHandler
      }, settings);

      return {
        upload: upload
      };
    };
  }
);
/**
 * Conversions.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Converts blob/uris back and forth.
 *
 * @private
 * @class tinymce.file.Conversions
 */
define(
  'tinymce.core.file.Conversions',
  [
    "tinymce.core.util.Promise"
  ],
  function (Promise) {
    function blobUriToBlob(url) {
      return new Promise(function (resolve, reject) {

        var rejectWithError = function () {
          reject("Cannot convert " + url + " to Blob. Resource might not exist or is inaccessible.");
        };

        try {
          var xhr = new XMLHttpRequest();

          xhr.open('GET', url, true);
          xhr.responseType = 'blob';

          xhr.onload = function () {
            if (this.status == 200) {
              resolve(this.response);
            } else {
              // IE11 makes it into onload but responds with status 500
              rejectWithError();
            }
          };

          // Chrome fires an error event instead of the exception
          // Also there seems to be no way to intercept the message that is logged to the console
          xhr.onerror = rejectWithError;

          xhr.send();
        } catch (ex) {
          rejectWithError();
        }
      });
    }

    function parseDataUri(uri) {
      var type, matches;

      uri = decodeURIComponent(uri).split(',');

      matches = /data:([^;]+)/.exec(uri[0]);
      if (matches) {
        type = matches[1];
      }

      return {
        type: type,
        data: uri[1]
      };
    }

    function dataUriToBlob(uri) {
      return new Promise(function (resolve) {
        var str, arr, i;

        uri = parseDataUri(uri);

        // Might throw error if data isn't proper base64
        try {
          str = atob(uri.data);
        } catch (e) {
          resolve(new Blob([]));
          return;
        }

        arr = new Uint8Array(str.length);

        for (i = 0; i < arr.length; i++) {
          arr[i] = str.charCodeAt(i);
        }

        resolve(new Blob([arr], { type: uri.type }));
      });
    }

    function uriToBlob(url) {
      if (url.indexOf('blob:') === 0) {
        return blobUriToBlob(url);
      }

      if (url.indexOf('data:') === 0) {
        return dataUriToBlob(url);
      }

      return null;
    }

    function blobToDataUri(blob) {
      return new Promise(function (resolve) {
        var reader = new FileReader();

        reader.onloadend = function () {
          resolve(reader.result);
        };

        reader.readAsDataURL(blob);
      });
    }

    return {
      uriToBlob: uriToBlob,
      blobToDataUri: blobToDataUri,
      parseDataUri: parseDataUri
    };
  }
);
/**
 * ImageScanner.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Finds images with data uris or blob uris. If data uris are found it will convert them into blob uris.
 *
 * @private
 * @class tinymce.file.ImageScanner
 */
define(
  'tinymce.core.file.ImageScanner',
  [
    "tinymce.core.util.Promise",
    "tinymce.core.util.Arr",
    "tinymce.core.util.Fun",
    "tinymce.core.file.Conversions",
    "tinymce.core.Env"
  ],
  function (Promise, Arr, Fun, Conversions, Env) {
    var count = 0;

    var uniqueId = function (prefix) {
      return (prefix || 'blobid') + (count++);
    };

    var imageToBlobInfo = function (blobCache, img, resolve, reject) {
      var base64, blobInfo;

      if (img.src.indexOf('blob:') === 0) {
        blobInfo = blobCache.getByUri(img.src);

        if (blobInfo) {
          resolve({
            image: img,
            blobInfo: blobInfo
          });
        } else {
          Conversions.uriToBlob(img.src).then(function (blob) {
            Conversions.blobToDataUri(blob).then(function (dataUri) {
              base64 = Conversions.parseDataUri(dataUri).data;
              blobInfo = blobCache.create(uniqueId(), blob, base64);
              blobCache.add(blobInfo);

              resolve({
                image: img,
                blobInfo: blobInfo
              });
            });
          }, function (err) {
            reject(err);
          });
        }

        return;
      }

      base64 = Conversions.parseDataUri(img.src).data;
      blobInfo = blobCache.findFirst(function (cachedBlobInfo) {
        return cachedBlobInfo.base64() === base64;
      });

      if (blobInfo) {
        resolve({
          image: img,
          blobInfo: blobInfo
        });
      } else {
        Conversions.uriToBlob(img.src).then(function (blob) {
          blobInfo = blobCache.create(uniqueId(), blob, base64);
          blobCache.add(blobInfo);

          resolve({
            image: img,
            blobInfo: blobInfo
          });
        }, function (err) {
          reject(err);
        });
      }
    };

    var getAllImages = function (elm) {
      return elm ? elm.getElementsByTagName('img') : [];
    };

    return function (uploadStatus, blobCache) {
      var cachedPromises = {};

      function findAll(elm, predicate) {
        var images, promises;

        if (!predicate) {
          predicate = Fun.constant(true);
        }

        images = Arr.filter(getAllImages(elm), function (img) {
          var src = img.src;

          if (!Env.fileApi) {
            return false;
          }

          if (img.hasAttribute('data-mce-bogus')) {
            return false;
          }

          if (img.hasAttribute('data-mce-placeholder')) {
            return false;
          }

          if (!src || src == Env.transparentSrc) {
            return false;
          }

          if (src.indexOf('blob:') === 0) {
            return !uploadStatus.isUploaded(src);
          }

          if (src.indexOf('data:') === 0) {
            return predicate(img);
          }

          return false;
        });

        promises = Arr.map(images, function (img) {
          var newPromise;

          if (cachedPromises[img.src]) {
            // Since the cached promise will return the cached image
            // We need to wrap it and resolve with the actual image
            return new Promise(function (resolve) {
              cachedPromises[img.src].then(function (imageInfo) {
                if (typeof imageInfo === 'string') { // error apparently
                  return imageInfo;
                }
                resolve({
                  image: img,
                  blobInfo: imageInfo.blobInfo
                });
              });
            });
          }

          newPromise = new Promise(function (resolve, reject) {
            imageToBlobInfo(blobCache, img, resolve, reject);
          }).then(function (result) {
            delete cachedPromises[result.image.src];
            return result;
          })['catch'](function (error) {
            delete cachedPromises[img.src];
            return error;
          });

          cachedPromises[img.src] = newPromise;

          return newPromise;
        });

        return Promise.all(promises);
      }

      return {
        findAll: findAll
      };
    };
  }
);
/**
 * Uuid.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Generates unique ids.
 *
 * @class tinymce.util.Uuid
 * @private
 */
define(
  'tinymce.core.util.Uuid',
  [
  ],
  function () {
    var count = 0;

    var seed = function () {
      var rnd = function () {
        return Math.round(Math.random() * 0xFFFFFFFF).toString(36);
      };

      var now = new Date().getTime();
      return 's' + now.toString(36) + rnd() + rnd() + rnd();
    };

    var uuid = function (prefix) {
      return prefix + (count++) + seed();
    };

    return {
      uuid: uuid
    };
  }
);

defineGlobal("global!URL", URL);
/**
 * BlobCache.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Hold blob info objects where a blob has extra internal information.
 *
 * @private
 * @class tinymce.file.BlobCache
 */
define(
  'tinymce.core.file.BlobCache',
  [
    'tinymce.core.util.Arr',
    'tinymce.core.util.Fun',
    'tinymce.core.util.Uuid',
    'global!URL'
  ],
  function (Arr, Fun, Uuid, URL) {
    return function () {
      var cache = [], constant = Fun.constant;

      function mimeToExt(mime) {
        var mimes = {
          'image/jpeg': 'jpg',
          'image/jpg': 'jpg',
          'image/gif': 'gif',
          'image/png': 'png'
        };

        return mimes[mime.toLowerCase()] || 'dat';
      }

      function create(o, blob, base64, filename) {
        return typeof o === 'object' ? toBlobInfo(o) : toBlobInfo({
          id: o,
          name: filename,
          blob: blob,
          base64: base64
        });
      }

      function toBlobInfo(o) {
        var id, name;

        if (!o.blob || !o.base64) {
          throw "blob and base64 representations of the image are required for BlobInfo to be created";
        }

        id = o.id || Uuid.uuid('blobid');
        name = o.name || id;

        return {
          id: constant(id),
          name: constant(name),
          filename: constant(name + '.' + mimeToExt(o.blob.type)),
          blob: constant(o.blob),
          base64: constant(o.base64),
          blobUri: constant(o.blobUri || URL.createObjectURL(o.blob)),
          uri: constant(o.uri)
        };
      }

      function add(blobInfo) {
        if (!get(blobInfo.id())) {
          cache.push(blobInfo);
        }
      }

      function get(id) {
        return findFirst(function (cachedBlobInfo) {
          return cachedBlobInfo.id() === id;
        });
      }

      function findFirst(predicate) {
        return Arr.filter(cache, predicate)[0];
      }

      function getByUri(blobUri) {
        return findFirst(function (blobInfo) {
          return blobInfo.blobUri() == blobUri;
        });
      }

      function removeByUri(blobUri) {
        cache = Arr.filter(cache, function (blobInfo) {
          if (blobInfo.blobUri() === blobUri) {
            URL.revokeObjectURL(blobInfo.blobUri());
            return false;
          }

          return true;
        });
      }

      function destroy() {
        Arr.each(cache, function (cachedBlobInfo) {
          URL.revokeObjectURL(cachedBlobInfo.blobUri());
        });

        cache = [];
      }

      return {
        create: create,
        add: add,
        get: get,
        getByUri: getByUri,
        findFirst: findFirst,
        removeByUri: removeByUri,
        destroy: destroy
      };
    };
  }
);
/**
 * UploadStatus.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Holds the current status of a blob uri, if it's pending or uploaded and what the result urls was.
 *
 * @private
 * @class tinymce.file.UploadStatus
 */
define(
  'tinymce.core.file.UploadStatus',
  [
  ],
  function () {
    return function () {
      var PENDING = 1, UPLOADED = 2;
      var blobUriStatuses = {};

      function createStatus(status, resultUri) {
        return {
          status: status,
          resultUri: resultUri
        };
      }

      function hasBlobUri(blobUri) {
        return blobUri in blobUriStatuses;
      }

      function getResultUri(blobUri) {
        var result = blobUriStatuses[blobUri];

        return result ? result.resultUri : null;
      }

      function isPending(blobUri) {
        return hasBlobUri(blobUri) ? blobUriStatuses[blobUri].status === PENDING : false;
      }

      function isUploaded(blobUri) {
        return hasBlobUri(blobUri) ? blobUriStatuses[blobUri].status === UPLOADED : false;
      }

      function markPending(blobUri) {
        blobUriStatuses[blobUri] = createStatus(PENDING, null);
      }

      function markUploaded(blobUri, resultUri) {
        blobUriStatuses[blobUri] = createStatus(UPLOADED, resultUri);
      }

      function removeFailed(blobUri) {
        delete blobUriStatuses[blobUri];
      }

      function destroy() {
        blobUriStatuses = {};
      }

      return {
        hasBlobUri: hasBlobUri,
        getResultUri: getResultUri,
        isPending: isPending,
        isUploaded: isUploaded,
        markPending: markPending,
        markUploaded: markUploaded,
        removeFailed: removeFailed,
        destroy: destroy
      };
    };
  }
);
/**
 * EditorUpload.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Handles image uploads, updates undo stack and patches over various internal functions.
 *
 * @private
 * @class tinymce.EditorUpload
 */
define(
  'tinymce.core.EditorUpload',
  [
    "tinymce.core.util.Arr",
    "tinymce.core.file.Uploader",
    "tinymce.core.file.ImageScanner",
    "tinymce.core.file.BlobCache",
    "tinymce.core.file.UploadStatus",
    "tinymce.core.ErrorReporter"
  ],
  function (Arr, Uploader, ImageScanner, BlobCache, UploadStatus, ErrorReporter) {
    return function (editor) {
      var blobCache = new BlobCache(), uploader, imageScanner, settings = editor.settings;
      var uploadStatus = new UploadStatus();

      function aliveGuard(callback) {
        return function (result) {
          if (editor.selection) {
            return callback(result);
          }

          return [];
        };
      }

      function cacheInvalidator() {
        return '?' + (new Date()).getTime();
      }

      // Replaces strings without regexps to avoid FF regexp to big issue
      function replaceString(content, search, replace) {
        var index = 0;

        do {
          index = content.indexOf(search, index);

          if (index !== -1) {
            content = content.substring(0, index) + replace + content.substr(index + search.length);
            index += replace.length - search.length + 1;
          }
        } while (index !== -1);

        return content;
      }

      function replaceImageUrl(content, targetUrl, replacementUrl) {
        content = replaceString(content, 'src="' + targetUrl + '"', 'src="' + replacementUrl + '"');
        content = replaceString(content, 'data-mce-src="' + targetUrl + '"', 'data-mce-src="' + replacementUrl + '"');

        return content;
      }

      function replaceUrlInUndoStack(targetUrl, replacementUrl) {
        Arr.each(editor.undoManager.data, function (level) {
          if (level.type === 'fragmented') {
            level.fragments = Arr.map(level.fragments, function (fragment) {
              return replaceImageUrl(fragment, targetUrl, replacementUrl);
            });
          } else {
            level.content = replaceImageUrl(level.content, targetUrl, replacementUrl);
          }
        });
      }

      function openNotification() {
        return editor.notificationManager.open({
          text: editor.translate('Image uploading...'),
          type: 'info',
          timeout: -1,
          progressBar: true
        });
      }

      function replaceImageUri(image, resultUri) {
        blobCache.removeByUri(image.src);
        replaceUrlInUndoStack(image.src, resultUri);

        editor.$(image).attr({
          src: settings.images_reuse_filename ? resultUri + cacheInvalidator() : resultUri,
          'data-mce-src': editor.convertURL(resultUri, 'src')
        });
      }

      function uploadImages(callback) {
        if (!uploader) {
          uploader = new Uploader(uploadStatus, {
            url: settings.images_upload_url,
            basePath: settings.images_upload_base_path,
            credentials: settings.images_upload_credentials,
            handler: settings.images_upload_handler
          });
        }

        return scanForImages().then(aliveGuard(function (imageInfos) {
          var blobInfos;

          blobInfos = Arr.map(imageInfos, function (imageInfo) {
            return imageInfo.blobInfo;
          });

          return uploader.upload(blobInfos, openNotification).then(aliveGuard(function (result) {
            var filteredResult = Arr.map(result, function (uploadInfo, index) {
              var image = imageInfos[index].image;

              if (uploadInfo.status && editor.settings.images_replace_blob_uris !== false) {
                replaceImageUri(image, uploadInfo.url);
              } else if (uploadInfo.error) {
                ErrorReporter.uploadError(editor, uploadInfo.error);
              }

              return {
                element: image,
                status: uploadInfo.status
              };
            });

            if (callback) {
              callback(filteredResult);
            }

            return filteredResult;
          }));
        }));
      }

      function uploadImagesAuto(callback) {
        if (settings.automatic_uploads !== false) {
          return uploadImages(callback);
        }
      }

      function isValidDataUriImage(imgElm) {
        return settings.images_dataimg_filter ? settings.images_dataimg_filter(imgElm) : true;
      }

      function scanForImages() {
        if (!imageScanner) {
          imageScanner = new ImageScanner(uploadStatus, blobCache);
        }

        return imageScanner.findAll(editor.getBody(), isValidDataUriImage).then(aliveGuard(function (result) {
          result = Arr.filter(result, function (resultItem) {
            // ImageScanner internally converts images that it finds, but it may fail to do so if image source is inaccessible.
            // In such case resultItem will contain appropriate text error message, instead of image data.
            if (typeof resultItem === 'string') {
              ErrorReporter.displayError(editor, resultItem);
              return false;
            }
            return true;
          });

          Arr.each(result, function (resultItem) {
            replaceUrlInUndoStack(resultItem.image.src, resultItem.blobInfo.blobUri());
            resultItem.image.src = resultItem.blobInfo.blobUri();
            resultItem.image.removeAttribute('data-mce-src');
          });

          return result;
        }));
      }

      function destroy() {
        blobCache.destroy();
        uploadStatus.destroy();
        imageScanner = uploader = null;
      }

      function replaceBlobUris(content) {
        return content.replace(/src="(blob:[^"]+)"/g, function (match, blobUri) {
          var resultUri = uploadStatus.getResultUri(blobUri);

          if (resultUri) {
            return 'src="' + resultUri + '"';
          }

          var blobInfo = blobCache.getByUri(blobUri);

          if (!blobInfo) {
            blobInfo = Arr.reduce(editor.editorManager.editors, function (result, editor) {
              return result || editor.editorUpload && editor.editorUpload.blobCache.getByUri(blobUri);
            }, null);
          }

          if (blobInfo) {
            return 'src="data:' + blobInfo.blob().type + ';base64,' + blobInfo.base64() + '"';
          }

          return match;
        });
      }

      editor.on('setContent', function () {
        if (editor.settings.automatic_uploads !== false) {
          uploadImagesAuto();
        } else {
          scanForImages();
        }
      });

      editor.on('RawSaveContent', function (e) {
        e.content = replaceBlobUris(e.content);
      });

      editor.on('getContent', function (e) {
        if (e.source_view || e.format == 'raw') {
          return;
        }

        e.content = replaceBlobUris(e.content);
      });

      editor.on('PostRender', function () {
        editor.parser.addNodeFilter('img', function (images) {
          Arr.each(images, function (img) {
            var src = img.attr('src');

            if (blobCache.getByUri(src)) {
              return;
            }

            var resultUri = uploadStatus.getResultUri(src);
            if (resultUri) {
              img.attr('src', resultUri);
            }
          });
        });
      });

      return {
        blobCache: blobCache,
        uploadImages: uploadImages,
        uploadImagesAuto: uploadImagesAuto,
        scanForImages: scanForImages,
        destroy: destroy
      };
    };
  }
);
/**
 * ForceBlocks.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Makes sure that everything gets wrapped in paragraphs.
 *
 * @private
 * @class tinymce.ForceBlocks
 */
define(
  'tinymce.core.ForceBlocks',
  [
    'ephox.katamari.api.Fun'
  ],
  function (Fun) {
    var addRootBlocks = function (editor) {
      var settings = editor.settings, dom = editor.dom, selection = editor.selection;
      var schema = editor.schema, blockElements = schema.getBlockElements();
      var node = selection.getStart(), rootNode = editor.getBody(), rng;
      var startContainer, startOffset, endContainer, endOffset, rootBlockNode;
      var tempNode, offset = -0xFFFFFF, wrapped, restoreSelection;
      var tmpRng, rootNodeName, forcedRootBlock;

      forcedRootBlock = settings.forced_root_block;

      if (!node || node.nodeType !== 1 || !forcedRootBlock) {
        return;
      }

      // Check if node is wrapped in block
      while (node && node !== rootNode) {
        if (blockElements[node.nodeName]) {
          return;
        }

        node = node.parentNode;
      }

      // Get current selection
      rng = selection.getRng();
      if (rng.setStart) {
        startContainer = rng.startContainer;
        startOffset = rng.startOffset;
        endContainer = rng.endContainer;
        endOffset = rng.endOffset;

        try {
          restoreSelection = editor.getDoc().activeElement === rootNode;
        } catch (ex) {
          // IE throws unspecified error here sometimes
        }
      } else {
        // Force control range into text range
        if (rng.item) {
          node = rng.item(0);
          rng = editor.getDoc().body.createTextRange();
          rng.moveToElementText(node);
        }

        restoreSelection = rng.parentElement().ownerDocument === editor.getDoc();
        tmpRng = rng.duplicate();
        tmpRng.collapse(true);
        startOffset = tmpRng.move('character', offset) * -1;

        if (!tmpRng.collapsed) {
          tmpRng = rng.duplicate();
          tmpRng.collapse(false);
          endOffset = (tmpRng.move('character', offset) * -1) - startOffset;
        }
      }

      // Wrap non block elements and text nodes
      node = rootNode.firstChild;
      rootNodeName = rootNode.nodeName.toLowerCase();
      while (node) {
        // TODO: Break this up, too complex
        if (((node.nodeType === 3 || (node.nodeType == 1 && !blockElements[node.nodeName]))) &&
          schema.isValidChild(rootNodeName, forcedRootBlock.toLowerCase())) {
          // Remove empty text nodes
          if (node.nodeType === 3 && node.nodeValue.length === 0) {
            tempNode = node;
            node = node.nextSibling;
            dom.remove(tempNode);
            continue;
          }

          if (!rootBlockNode) {
            rootBlockNode = dom.create(forcedRootBlock, editor.settings.forced_root_block_attrs);
            node.parentNode.insertBefore(rootBlockNode, node);
            wrapped = true;
          }

          tempNode = node;
          node = node.nextSibling;
          rootBlockNode.appendChild(tempNode);
        } else {
          rootBlockNode = null;
          node = node.nextSibling;
        }
      }

      if (wrapped && restoreSelection) {
        if (rng.setStart) {
          rng.setStart(startContainer, startOffset);
          rng.setEnd(endContainer, endOffset);
          selection.setRng(rng);
        } else {
          // Only select if the previous selection was inside the document to prevent auto focus in quirks mode
          try {
            rng = editor.getDoc().body.createTextRange();
            rng.moveToElementText(rootNode);
            rng.collapse(true);
            rng.moveStart('character', startOffset);

            if (endOffset > 0) {
              rng.moveEnd('character', endOffset);
            }

            rng.select();
          } catch (ex) {
            // Ignore
          }
        }

        editor.nodeChanged();
      }
    };

    var setup = function (editor) {
      if (editor.settings.forced_root_block) {
        editor.on('NodeChange', Fun.curry(addRootBlocks, editor));
      }
    };

    return {
      setup: setup
    };
  }
);
/**
 * Dimensions.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module measures nodes and returns client rects. The client rects has an
 * extra node property.
 *
 * @private
 * @class tinymce.dom.Dimensions
 */
define(
  'tinymce.core.dom.Dimensions',
  [
    "tinymce.core.util.Arr",
    "tinymce.core.dom.NodeType",
    "tinymce.core.geom.ClientRect"
  ],
  function (Arr, NodeType, ClientRect) {

    function getClientRects(node) {
      function toArrayWithNode(clientRects) {
        return Arr.map(clientRects, function (clientRect) {
          clientRect = ClientRect.clone(clientRect);
          clientRect.node = node;

          return clientRect;
        });
      }

      if (Arr.isArray(node)) {
        return Arr.reduce(node, function (result, node) {
          return result.concat(getClientRects(node));
        }, []);
      }

      if (NodeType.isElement(node)) {
        return toArrayWithNode(node.getClientRects());
      }

      if (NodeType.isText(node)) {
        var rng = node.ownerDocument.createRange();

        rng.setStart(node, 0);
        rng.setEnd(node, node.data.length);

        return toArrayWithNode(rng.getClientRects());
      }
    }

    return {
      /**
       * Returns the client rects for a specific node.
       *
       * @method getClientRects
       * @param {Array/DOMNode} node Node or array of nodes to get client rects on.
       * @param {Array} Array of client rects with a extra node property.
       */
      getClientRects: getClientRects
    };
  }
);
/**
 * LineUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Utility functions for working with lines.
 *
 * @private
 * @class tinymce.caret.LineUtils
 */
define(
  'tinymce.core.caret.LineUtils',
  [
    "tinymce.core.util.Fun",
    "tinymce.core.util.Arr",
    "tinymce.core.dom.NodeType",
    "tinymce.core.dom.Dimensions",
    "tinymce.core.geom.ClientRect",
    "tinymce.core.caret.CaretUtils",
    "tinymce.core.caret.CaretCandidate"
  ],
  function (Fun, Arr, NodeType, Dimensions, ClientRect, CaretUtils, CaretCandidate) {
    var isContentEditableFalse = NodeType.isContentEditableFalse,
      findNode = CaretUtils.findNode,
      curry = Fun.curry;

    function distanceToRectLeft(clientRect, clientX) {
      return Math.abs(clientRect.left - clientX);
    }

    function distanceToRectRight(clientRect, clientX) {
      return Math.abs(clientRect.right - clientX);
    }

    function findClosestClientRect(clientRects, clientX) {
      function isInside(clientX, clientRect) {
        return clientX >= clientRect.left && clientX <= clientRect.right;
      }

      return Arr.reduce(clientRects, function (oldClientRect, clientRect) {
        var oldDistance, newDistance;

        oldDistance = Math.min(distanceToRectLeft(oldClientRect, clientX), distanceToRectRight(oldClientRect, clientX));
        newDistance = Math.min(distanceToRectLeft(clientRect, clientX), distanceToRectRight(clientRect, clientX));

        if (isInside(clientX, clientRect)) {
          return clientRect;
        }

        if (isInside(clientX, oldClientRect)) {
          return oldClientRect;
        }

        // cE=false has higher priority
        if (newDistance == oldDistance && isContentEditableFalse(clientRect.node)) {
          return clientRect;
        }

        if (newDistance < oldDistance) {
          return clientRect;
        }

        return oldClientRect;
      });
    }

    function walkUntil(direction, rootNode, predicateFn, node) {
      while ((node = findNode(node, direction, CaretCandidate.isEditableCaretCandidate, rootNode))) {
        if (predicateFn(node)) {
          return;
        }
      }
    }

    function findLineNodeRects(rootNode, targetNodeRect) {
      var clientRects = [];

      function collect(checkPosFn, node) {
        var lineRects;

        lineRects = Arr.filter(Dimensions.getClientRects(node), function (clientRect) {
          return !checkPosFn(clientRect, targetNodeRect);
        });

        clientRects = clientRects.concat(lineRects);

        return lineRects.length === 0;
      }

      clientRects.push(targetNodeRect);
      walkUntil(-1, rootNode, curry(collect, ClientRect.isAbove), targetNodeRect.node);
      walkUntil(1, rootNode, curry(collect, ClientRect.isBelow), targetNodeRect.node);

      return clientRects;
    }

    function getContentEditableFalseChildren(rootNode) {
      return Arr.filter(Arr.toArray(rootNode.getElementsByTagName('*')), isContentEditableFalse);
    }

    function caretInfo(clientRect, clientX) {
      return {
        node: clientRect.node,
        before: distanceToRectLeft(clientRect, clientX) < distanceToRectRight(clientRect, clientX)
      };
    }

    function closestCaret(rootNode, clientX, clientY) {
      var contentEditableFalseNodeRects, closestNodeRect;

      contentEditableFalseNodeRects = Dimensions.getClientRects(getContentEditableFalseChildren(rootNode));
      contentEditableFalseNodeRects = Arr.filter(contentEditableFalseNodeRects, function (clientRect) {
        return clientY >= clientRect.top && clientY <= clientRect.bottom;
      });

      closestNodeRect = findClosestClientRect(contentEditableFalseNodeRects, clientX);
      if (closestNodeRect) {
        closestNodeRect = findClosestClientRect(findLineNodeRects(rootNode, closestNodeRect), clientX);
        if (closestNodeRect && isContentEditableFalse(closestNodeRect.node)) {
          return caretInfo(closestNodeRect, clientX);
        }
      }

      return null;
    }

    return {
      findClosestClientRect: findClosestClientRect,
      findLineNodeRects: findLineNodeRects,
      closestCaret: closestCaret
    };
  }
);
/**
 * LineWalker.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module lets you walk the document line by line
 * returing nodes and client rects for each line.
 *
 * @private
 * @class tinymce.caret.LineWalker
 */
define(
  'tinymce.core.caret.LineWalker',
  [
    "tinymce.core.util.Fun",
    "tinymce.core.util.Arr",
    "tinymce.core.dom.Dimensions",
    "tinymce.core.caret.CaretCandidate",
    "tinymce.core.caret.CaretUtils",
    "tinymce.core.caret.CaretWalker",
    "tinymce.core.caret.CaretPosition",
    "tinymce.core.geom.ClientRect"
  ],
  function (Fun, Arr, Dimensions, CaretCandidate, CaretUtils, CaretWalker, CaretPosition, ClientRect) {
    var curry = Fun.curry;

    function findUntil(direction, rootNode, predicateFn, node) {
      while ((node = CaretUtils.findNode(node, direction, CaretCandidate.isEditableCaretCandidate, rootNode))) {
        if (predicateFn(node)) {
          return;
        }
      }
    }

    function walkUntil(direction, isAboveFn, isBeflowFn, rootNode, predicateFn, caretPosition) {
      var line = 0, node, result = [], targetClientRect;

      function add(node) {
        var i, clientRect, clientRects;

        clientRects = Dimensions.getClientRects(node);
        if (direction == -1) {
          clientRects = clientRects.reverse();
        }

        for (i = 0; i < clientRects.length; i++) {
          clientRect = clientRects[i];
          if (isBeflowFn(clientRect, targetClientRect)) {
            continue;
          }

          if (result.length > 0 && isAboveFn(clientRect, Arr.last(result))) {
            line++;
          }

          clientRect.line = line;

          if (predicateFn(clientRect)) {
            return true;
          }

          result.push(clientRect);
        }
      }

      targetClientRect = Arr.last(caretPosition.getClientRects());
      if (!targetClientRect) {
        return result;
      }

      node = caretPosition.getNode();
      add(node);
      findUntil(direction, rootNode, add, node);

      return result;
    }

    function aboveLineNumber(lineNumber, clientRect) {
      return clientRect.line > lineNumber;
    }

    function isLine(lineNumber, clientRect) {
      return clientRect.line === lineNumber;
    }

    var upUntil = curry(walkUntil, -1, ClientRect.isAbove, ClientRect.isBelow);
    var downUntil = curry(walkUntil, 1, ClientRect.isBelow, ClientRect.isAbove);

    function positionsUntil(direction, rootNode, predicateFn, node) {
      var caretWalker = new CaretWalker(rootNode), walkFn, isBelowFn, isAboveFn,
        caretPosition, result = [], line = 0, clientRect, targetClientRect;

      function getClientRect(caretPosition) {
        if (direction == 1) {
          return Arr.last(caretPosition.getClientRects());
        }

        return Arr.last(caretPosition.getClientRects());
      }

      if (direction == 1) {
        walkFn = caretWalker.next;
        isBelowFn = ClientRect.isBelow;
        isAboveFn = ClientRect.isAbove;
        caretPosition = CaretPosition.after(node);
      } else {
        walkFn = caretWalker.prev;
        isBelowFn = ClientRect.isAbove;
        isAboveFn = ClientRect.isBelow;
        caretPosition = CaretPosition.before(node);
      }

      targetClientRect = getClientRect(caretPosition);

      do {
        if (!caretPosition.isVisible()) {
          continue;
        }

        clientRect = getClientRect(caretPosition);

        if (isAboveFn(clientRect, targetClientRect)) {
          continue;
        }

        if (result.length > 0 && isBelowFn(clientRect, Arr.last(result))) {
          line++;
        }

        clientRect = ClientRect.clone(clientRect);
        clientRect.position = caretPosition;
        clientRect.line = line;

        if (predicateFn(clientRect)) {
          return result;
        }

        result.push(clientRect);
      } while ((caretPosition = walkFn(caretPosition)));

      return result;
    }

    return {
      upUntil: upUntil,
      downUntil: downUntil,

      /**
       * Find client rects with line and caret position until the predicate returns true.
       *
       * @method positionsUntil
       * @param {Number} direction Direction forward/backward 1/-1.
       * @param {DOMNode} rootNode Root node to walk within.
       * @param {function} predicateFn Gets the client rect as it's input.
       * @param {DOMNode} node Node to start walking from.
       * @return {Array} Array of client rects with line and position properties.
       */
      positionsUntil: positionsUntil,

      isAboveLine: curry(aboveLineNumber),
      isLine: curry(isLine)
    };
  }
);
/**
 * CefUtils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.CefUtils',
  [
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.dom.NodeType',
    'tinymce.core.util.Fun'
  ],
  function (CaretPosition, CaretUtils, NodeType, Fun) {
    var isContentEditableTrue = NodeType.isContentEditableTrue;
    var isContentEditableFalse = NodeType.isContentEditableFalse;

    var showCaret = function (direction, editor, node, before) {
      // TODO: Figure out a better way to handle this dependency
      return editor._selectionOverrides.showCaret(direction, node, before);
    };

    var getNodeRange = function (node) {
      var rng = node.ownerDocument.createRange();
      rng.selectNode(node);
      return rng;
    };

    var selectNode = function (editor, node) {
      var e;

      e = editor.fire('BeforeObjectSelected', { target: node });
      if (e.isDefaultPrevented()) {
        return null;
      }

      return getNodeRange(node);
    };

    var renderCaretAtRange = function (editor, range) {
      var caretPosition, ceRoot;

      range = CaretUtils.normalizeRange(1, editor.getBody(), range);
      caretPosition = CaretPosition.fromRangeStart(range);

      if (isContentEditableFalse(caretPosition.getNode())) {
        return showCaret(1, editor, caretPosition.getNode(), !caretPosition.isAtEnd());
      }

      if (isContentEditableFalse(caretPosition.getNode(true))) {
        return showCaret(1, editor, caretPosition.getNode(true), false);
      }

      // TODO: Should render caret before/after depending on where you click on the page forces after now
      ceRoot = editor.dom.getParent(caretPosition.getNode(), Fun.or(isContentEditableFalse, isContentEditableTrue));
      if (isContentEditableFalse(ceRoot)) {
        return showCaret(1, editor, ceRoot, false);
      }

      return null;
    };

    var renderRangeCaret = function (editor, range) {
      var caretRange;

      if (!range || !range.collapsed) {
        return range;
      }

      caretRange = renderCaretAtRange(editor, range);
      if (caretRange) {
        return caretRange;
      }

      return range;
    };

    return {
      showCaret: showCaret,
      selectNode: selectNode,
      renderCaretAtRange: renderCaretAtRange,
      renderRangeCaret: renderRangeCaret
    };
  }
);

/**
 * CefNavigation.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.CefNavigation',
  [
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.caret.CaretWalker',
    'tinymce.core.caret.LineUtils',
    'tinymce.core.caret.LineWalker',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.Env',
    'tinymce.core.keyboard.CefUtils',
    'tinymce.core.util.Arr',
    'tinymce.core.util.Fun'
  ],
  function (CaretContainer, CaretPosition, CaretUtils, CaretWalker, LineUtils, LineWalker, NodeType, RangeUtils, Env, CefUtils, Arr, Fun) {
    var isContentEditableFalse = NodeType.isContentEditableFalse;
    var getSelectedNode = RangeUtils.getSelectedNode;
    var isAfterContentEditableFalse = CaretUtils.isAfterContentEditableFalse;
    var isBeforeContentEditableFalse = CaretUtils.isBeforeContentEditableFalse;

    var getVisualCaretPosition = function (walkFn, caretPosition) {
      while ((caretPosition = walkFn(caretPosition))) {
        if (caretPosition.isVisible()) {
          return caretPosition;
        }
      }

      return caretPosition;
    };

    var isMoveInsideSameBlock = function (fromCaretPosition, toCaretPosition) {
      var inSameBlock = CaretUtils.isInSameBlock(fromCaretPosition, toCaretPosition);

      // Handle bogus BR <p>abc|<br></p>
      if (!inSameBlock && NodeType.isBr(fromCaretPosition.getNode())) {
        return true;
      }

      return inSameBlock;
    };

    var isRangeInCaretContainerBlock = function (range) {
      return CaretContainer.isCaretContainerBlock(range.startContainer);
    };

    var getNormalizedRangeEndPoint = function (direction, rootNode, range) {
      range = CaretUtils.normalizeRange(direction, rootNode, range);

      if (direction === -1) {
        return CaretPosition.fromRangeStart(range);
      }

      return CaretPosition.fromRangeEnd(range);
    };

    var moveToCeFalseHorizontally = function (direction, editor, getNextPosFn, isBeforeContentEditableFalseFn, range) {
      var node, caretPosition, peekCaretPosition, rangeIsInContainerBlock;

      if (!range.collapsed) {
        node = getSelectedNode(range);
        if (isContentEditableFalse(node)) {
          return CefUtils.showCaret(direction, editor, node, direction === -1);
        }
      }

      rangeIsInContainerBlock = isRangeInCaretContainerBlock(range);
      caretPosition = getNormalizedRangeEndPoint(direction, editor.getBody(), range);

      if (isBeforeContentEditableFalseFn(caretPosition)) {
        return CefUtils.selectNode(editor, caretPosition.getNode(direction === -1));
      }

      caretPosition = getNextPosFn(caretPosition);
      if (!caretPosition) {
        if (rangeIsInContainerBlock) {
          return range;
        }

        return null;
      }

      if (isBeforeContentEditableFalseFn(caretPosition)) {
        return CefUtils.showCaret(direction, editor, caretPosition.getNode(direction === -1), direction === 1);
      }

      // Peek ahead for handling of ab|c<span cE=false> -> abc|<span cE=false>
      peekCaretPosition = getNextPosFn(caretPosition);
      if (isBeforeContentEditableFalseFn(peekCaretPosition)) {
        if (isMoveInsideSameBlock(caretPosition, peekCaretPosition)) {
          return CefUtils.showCaret(direction, editor, peekCaretPosition.getNode(direction === -1), direction === 1);
        }
      }

      if (rangeIsInContainerBlock) {
        return CefUtils.renderRangeCaret(editor, caretPosition.toRange());
      }

      return null;
    };

    var moveToCeFalseVertically = function (direction, editor, walkerFn, range) {
      var caretPosition, linePositions, nextLinePositions,
        closestNextLineRect, caretClientRect, clientX,
        dist1, dist2, contentEditableFalseNode;

      contentEditableFalseNode = getSelectedNode(range);
      caretPosition = getNormalizedRangeEndPoint(direction, editor.getBody(), range);
      linePositions = walkerFn(editor.getBody(), LineWalker.isAboveLine(1), caretPosition);
      nextLinePositions = Arr.filter(linePositions, LineWalker.isLine(1));
      caretClientRect = Arr.last(caretPosition.getClientRects());

      if (isBeforeContentEditableFalse(caretPosition)) {
        contentEditableFalseNode = caretPosition.getNode();
      }

      if (isAfterContentEditableFalse(caretPosition)) {
        contentEditableFalseNode = caretPosition.getNode(true);
      }

      if (!caretClientRect) {
        return null;
      }

      clientX = caretClientRect.left;

      closestNextLineRect = LineUtils.findClosestClientRect(nextLinePositions, clientX);
      if (closestNextLineRect) {
        if (isContentEditableFalse(closestNextLineRect.node)) {
          dist1 = Math.abs(clientX - closestNextLineRect.left);
          dist2 = Math.abs(clientX - closestNextLineRect.right);

          return CefUtils.showCaret(direction, editor, closestNextLineRect.node, dist1 < dist2);
        }
      }

      if (contentEditableFalseNode) {
        var caretPositions = LineWalker.positionsUntil(direction, editor.getBody(), LineWalker.isAboveLine(1), contentEditableFalseNode);

        closestNextLineRect = LineUtils.findClosestClientRect(Arr.filter(caretPositions, LineWalker.isLine(1)), clientX);
        if (closestNextLineRect) {
          return CefUtils.renderRangeCaret(editor, closestNextLineRect.position.toRange());
        }

        closestNextLineRect = Arr.last(Arr.filter(caretPositions, LineWalker.isLine(0)));
        if (closestNextLineRect) {
          return CefUtils.renderRangeCaret(editor, closestNextLineRect.position.toRange());
        }
      }
    };

    var createTextBlock = function (editor) {
      var textBlock = editor.dom.create(editor.settings.forced_root_block);

      if (!Env.ie || Env.ie >= 11) {
        textBlock.innerHTML = '<br data-mce-bogus="1">';
      }

      return textBlock;
    };

    var exitPreBlock = function (editor, direction, range) {
      var pre, caretPos, newBlock;
      var caretWalker = new CaretWalker(editor.getBody());
      var getNextVisualCaretPosition = Fun.curry(getVisualCaretPosition, caretWalker.next);
      var getPrevVisualCaretPosition = Fun.curry(getVisualCaretPosition, caretWalker.prev);

      if (range.collapsed && editor.settings.forced_root_block) {
        pre = editor.dom.getParent(range.startContainer, 'PRE');
        if (!pre) {
          return;
        }

        if (direction === 1) {
          caretPos = getNextVisualCaretPosition(CaretPosition.fromRangeStart(range));
        } else {
          caretPos = getPrevVisualCaretPosition(CaretPosition.fromRangeStart(range));
        }

        if (!caretPos) {
          newBlock = createTextBlock(editor);

          if (direction === 1) {
            editor.$(pre).after(newBlock);
          } else {
            editor.$(pre).before(newBlock);
          }

          editor.selection.select(newBlock, true);
          editor.selection.collapse();
        }
      }
    };

    var getHorizontalRange = function (editor, forward) {
      var caretWalker = new CaretWalker(editor.getBody());
      var getNextVisualCaretPosition = Fun.curry(getVisualCaretPosition, caretWalker.next);
      var getPrevVisualCaretPosition = Fun.curry(getVisualCaretPosition, caretWalker.prev);
      var newRange, direction = forward ? 1 : -1;
      var getNextPosFn = forward ? getNextVisualCaretPosition : getPrevVisualCaretPosition;
      var isBeforeContentEditableFalseFn = forward ? isBeforeContentEditableFalse : isAfterContentEditableFalse;
      var range = editor.selection.getRng();

      newRange = moveToCeFalseHorizontally(direction, editor, getNextPosFn, isBeforeContentEditableFalseFn, range);
      if (newRange) {
        return newRange;
      }

      newRange = exitPreBlock(editor, direction, range);
      if (newRange) {
        return newRange;
      }

      return null;
    };

    var getVerticalRange = function (editor, down) {
      var newRange, direction = down ? 1 : -1;
      var walkerFn = down ? LineWalker.downUntil : LineWalker.upUntil;
      var range = editor.selection.getRng();

      newRange = moveToCeFalseVertically(direction, editor, walkerFn, range);
      if (newRange) {
        return newRange;
      }

      newRange = exitPreBlock(editor, direction, range);
      if (newRange) {
        return newRange;
      }

      return null;
    };

    var moveH = function (editor, forward) {
      return function () {
        var newRng = getHorizontalRange(editor, forward);

        if (newRng) {
          editor.selection.setRng(newRng);
          return true;
        } else {
          return false;
        }
      };
    };

    var moveV = function (editor, down) {
      return function () {
        var newRng = getVerticalRange(editor, down);

        if (newRng) {
          editor.selection.setRng(newRng);
          return true;
        } else {
          return false;
        }
      };
    };

    return {
      moveH: moveH,
      moveV: moveV
    };
  }
);

define(
  'ephox.katamari.api.Merger',

  [
    'ephox.katamari.api.Type',
    'global!Array',
    'global!Error'
  ],

  function (Type, Array, Error) {

    var shallow = function (old, nu) {
      return nu;
    };

    var deep = function (old, nu) {
      var bothObjects = Type.isObject(old) && Type.isObject(nu);
      return bothObjects ? deepMerge(old, nu) : nu;
    };

    var baseMerge = function (merger) {
      return function() {
        // Don't use array slice(arguments), makes the whole function unoptimisable on Chrome
        var objects = new Array(arguments.length);
        for (var i = 0; i < objects.length; i++) objects[i] = arguments[i];

        if (objects.length === 0) throw new Error('Can\'t merge zero objects');

        var ret = {};
        for (var j = 0; j < objects.length; j++) {
          var curObject = objects[j];
          for (var key in curObject) if (curObject.hasOwnProperty(key)) {
            ret[key] = merger(ret[key], curObject[key]);
          }
        }
        return ret;
      };
    };

    var deepMerge = baseMerge(deep);
    var merge = baseMerge(shallow);

    return {
      deepMerge: deepMerge,
      merge: merge
    };
  }
);
/**
 * MatchKeys.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.MatchKeys',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Merger'
  ],
  function (Arr, Fun, Merger) {
    var defaultPatterns = function (patterns) {
      return Arr.map(patterns, function (pattern) {
        return Merger.merge({
          shiftKey: false,
          altKey: false,
          ctrlKey: false,
          metaKey: false,
          keyCode: 0,
          action: Fun.noop
        }, pattern);
      });
    };

    var matchesEvent = function (pattern, evt) {
      return (
        evt.keyCode === pattern.keyCode &&
        evt.shiftKey === pattern.shiftKey &&
        evt.altKey === pattern.altKey &&
        evt.ctrlKey === pattern.ctrlKey &&
        evt.metaKey === pattern.metaKey
      );
    };

    var match = function (patterns, evt) {
      return Arr.bind(defaultPatterns(patterns), function (pattern) {
        return matchesEvent(pattern, evt) ? [pattern] : [ ];
      });
    };

    var action = function (f) {
      var args = Array.prototype.slice.call(arguments, 1);
      return function () {
        return f.apply(null, args);
      };
    };

    return {
      match: match,
      action: action
    };
  }
);
/**
 * ArrowKeys.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.ArrowKeys',
  [
    'ephox.katamari.api.Arr',
    'ephox.katamari.api.Cell',
    'tinymce.core.keyboard.BoundarySelection',
    'tinymce.core.keyboard.CefNavigation',
    'tinymce.core.keyboard.MatchKeys',
    'tinymce.core.util.VK'
  ],
  function (Arr, Cell, BoundarySelection, CefNavigation, MatchKeys, VK) {
    var setup = function (editor, caret) {
      editor.on('keydown', function (evt) {
        var matches = MatchKeys.match([
          { keyCode: VK.RIGHT, action: CefNavigation.moveH(editor, true) },
          { keyCode: VK.LEFT, action: CefNavigation.moveH(editor, false) },
          { keyCode: VK.UP, action: CefNavigation.moveV(editor, false) },
          { keyCode: VK.DOWN, action: CefNavigation.moveV(editor, true) },
          { keyCode: VK.RIGHT, action: BoundarySelection.move(editor, caret, true) },
          { keyCode: VK.LEFT, action: BoundarySelection.move(editor, caret, false) }
        ], evt);

        Arr.find(matches, function (pattern) {
          return pattern.action();
        }).each(function (_) {
          evt.preventDefault();
        });
      });
    };

    return {
      setup: setup
    };
  }
);

/**
 * DeleteBackspaceKeys.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.DeleteBackspaceKeys',
  [
    'ephox.katamari.api.Arr',
    'tinymce.core.delete.BlockBoundaryDelete',
    'tinymce.core.delete.BlockRangeDelete',
    'tinymce.core.delete.CefDelete',
    'tinymce.core.delete.InlineBoundaryDelete',
    'tinymce.core.keyboard.MatchKeys',
    'tinymce.core.util.VK'
  ],
  function (Arr, BlockBoundaryDelete, BlockRangeDelete, CefDelete, InlineBoundaryDelete, MatchKeys, VK) {
    var setupKeyDownHandler = function (editor, caret) {
      editor.on('keydown', function (evt) {
        var matches = MatchKeys.match([
          { keyCode: VK.BACKSPACE, action: MatchKeys.action(InlineBoundaryDelete.backspaceDelete, editor, caret, false) },
          { keyCode: VK.DELETE, action: MatchKeys.action(InlineBoundaryDelete.backspaceDelete, editor, caret, true) },
          { keyCode: VK.BACKSPACE, action: MatchKeys.action(CefDelete.backspaceDelete, editor, false) },
          { keyCode: VK.DELETE, action: MatchKeys.action(CefDelete.backspaceDelete, editor, true) },
          { keyCode: VK.BACKSPACE, action: MatchKeys.action(BlockRangeDelete.backspaceDelete, editor, false) },
          { keyCode: VK.DELETE, action: MatchKeys.action(BlockRangeDelete.backspaceDelete, editor, true) },
          { keyCode: VK.BACKSPACE, action: MatchKeys.action(BlockBoundaryDelete.backspaceDelete, editor, false) },
          { keyCode: VK.DELETE, action: MatchKeys.action(BlockBoundaryDelete.backspaceDelete, editor, true) }
        ], evt);

        Arr.find(matches, function (pattern) {
          return pattern.action();
        }).each(function (_) {
          evt.preventDefault();
        });
      });
    };

    var setupKeyUpHandler = function (editor) {
      editor.on('keyup', function (evt) {
        var matches = MatchKeys.match([
          { keyCode: VK.BACKSPACE, action: MatchKeys.action(CefDelete.paddEmptyElement, editor) },
          { keyCode: VK.DELETE, action: MatchKeys.action(CefDelete.paddEmptyElement, editor) }
        ], evt);

        Arr.find(matches, function (pattern) {
          return pattern.action();
        });
      });
    };

    var setup = function (editor, caret) {
      setupKeyDownHandler(editor, caret);
      setupKeyUpHandler(editor);
    };

    return {
      setup: setup
    };
  }
);

/**
 * EnterKey.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Contains logic for handling the enter key to split/generate block elements.
 */
define(
  'tinymce.core.keyboard.EnterKey',
  [
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.dom.TreeWalker',
    'tinymce.core.Env',
    'tinymce.core.text.Zwsp',
    'tinymce.core.util.Tools'
  ],
  function (CaretContainer, NodeType, RangeUtils, TreeWalker, Env, Zwsp, Tools) {
    var isIE = Env.ie && Env.ie < 11;

    var isEmptyAnchor = function (elm) {
      return elm && elm.nodeName === "A" && Tools.trim(Zwsp.trim(elm.innerText || elm.textContent)).length === 0;
    };

    var isTableCell = function (node) {
      return node && /^(TD|TH|CAPTION)$/.test(node.nodeName);
    };

    var emptyBlock = function (elm) {
      // BR is needed in empty blocks on non IE browsers
      elm.innerHTML = !isIE ? '<br data-mce-bogus="1">' : '';
    };

    var containerAndSiblingName = function (container, nodeName) {
      return container.nodeName === nodeName || (container.previousSibling && container.previousSibling.nodeName === nodeName);
    };

    // Returns true if the block can be split into two blocks or not
    var canSplitBlock = function (dom, node) {
      return node &&
        dom.isBlock(node) &&
        !/^(TD|TH|CAPTION|FORM)$/.test(node.nodeName) &&
        !/^(fixed|absolute)/i.test(node.style.position) &&
        dom.getContentEditable(node) !== "true";
    };

    // Renders empty block on IE
    var renderBlockOnIE = function (dom, selection, block) {
      var oldRng;

      if (dom.isBlock(block)) {
        oldRng = selection.getRng();
        block.appendChild(dom.create('span', null, '\u00a0'));
        selection.select(block);
        block.lastChild.outerHTML = '';
        selection.setRng(oldRng);
      }
    };

    // Remove the first empty inline element of the block so this: <p><b><em></em></b>x</p> becomes this: <p>x</p>
    var trimInlineElementsOnLeftSideOfBlock = function (dom, nonEmptyElementsMap, block) {
      var node = block, firstChilds = [], i;

      if (!node) {
        return;
      }

      // Find inner most first child ex: <p><i><b>*</b></i></p>
      while ((node = node.firstChild)) {
        if (dom.isBlock(node)) {
          return;
        }

        if (node.nodeType == 1 && !nonEmptyElementsMap[node.nodeName.toLowerCase()]) {
          firstChilds.push(node);
        }
      }

      i = firstChilds.length;
      while (i--) {
        node = firstChilds[i];
        if (!node.hasChildNodes() || (node.firstChild == node.lastChild && node.firstChild.nodeValue === '')) {
          dom.remove(node);
        } else {
          if (isEmptyAnchor(node)) {
            dom.remove(node);
          }
        }
      }
    };

    var normalizeZwspOffset = function (start, container, offset) {
      if (NodeType.isText(container) === false) {
        return offset;
      } if (start) {
        return offset === 1 && container.data.charAt(offset - 1) === Zwsp.ZWSP ? 0 : offset;
      } else {
        return offset === container.data.length - 1 && container.data.charAt(offset) === Zwsp.ZWSP ? container.data.length : offset;
      }
    };

    var includeZwspInRange = function (rng) {
      var newRng = rng.cloneRange();
      newRng.setStart(rng.startContainer, normalizeZwspOffset(true, rng.startContainer, rng.startOffset));
      newRng.setEnd(rng.endContainer, normalizeZwspOffset(false, rng.endContainer, rng.endOffset));
      return newRng;
    };

    var firstNonWhiteSpaceNodeSibling = function (node) {
      while (node) {
        if (node.nodeType === 1 || (node.nodeType === 3 && node.data && /[\r\n\s]/.test(node.data))) {
          return node;
        }

        node = node.nextSibling;
      }
    };

    var setup = function (editor) {
      var dom = editor.dom, selection = editor.selection, settings = editor.settings;
      var undoManager = editor.undoManager, schema = editor.schema, nonEmptyElementsMap = schema.getNonEmptyElements(),
        moveCaretBeforeOnEnterElementsMap = schema.getMoveCaretBeforeOnEnterElements();

      function handleEnterKey(evt) {
        var rng, tmpRng, editableRoot, container, offset, parentBlock, documentMode, shiftKey,
          newBlock, fragment, containerBlock, parentBlockName, containerBlockName, newBlockName, isAfterLastNodeInContainer;

        // Moves the caret to a suitable position within the root for example in the first non
        // pure whitespace text node or before an image
        function moveToCaretPosition(root) {
          var walker, node, rng, lastNode = root, tempElm;

          if (!root) {
            return;
          }

          // Old IE versions doesn't properly render blocks with br elements in them
          // For example <p><br></p> wont be rendered correctly in a contentEditable area
          // until you remove the br producing <p></p>
          if (Env.ie && Env.ie < 9 && parentBlock && parentBlock.firstChild) {
            if (parentBlock.firstChild == parentBlock.lastChild && parentBlock.firstChild.tagName == 'BR') {
              dom.remove(parentBlock.firstChild);
            }
          }

          if (/^(LI|DT|DD)$/.test(root.nodeName)) {
            var firstChild = firstNonWhiteSpaceNodeSibling(root.firstChild);

            if (firstChild && /^(UL|OL|DL)$/.test(firstChild.nodeName)) {
              root.insertBefore(dom.doc.createTextNode('\u00a0'), root.firstChild);
            }
          }

          rng = dom.createRng();

          // Normalize whitespace to remove empty text nodes. Fix for: #6904
          // Gecko will be able to place the caret in empty text nodes but it won't render propery
          // Older IE versions will sometimes crash so for now ignore all IE versions
          if (!Env.ie) {
            root.normalize();
          }

          if (root.hasChildNodes()) {
            walker = new TreeWalker(root, root);

            while ((node = walker.current())) {
              if (node.nodeType == 3) {
                rng.setStart(node, 0);
                rng.setEnd(node, 0);
                break;
              }

              if (moveCaretBeforeOnEnterElementsMap[node.nodeName.toLowerCase()]) {
                rng.setStartBefore(node);
                rng.setEndBefore(node);
                break;
              }

              lastNode = node;
              node = walker.next();
            }

            if (!node) {
              rng.setStart(lastNode, 0);
              rng.setEnd(lastNode, 0);
            }
          } else {
            if (root.nodeName == 'BR') {
              if (root.nextSibling && dom.isBlock(root.nextSibling)) {
                // Trick on older IE versions to render the caret before the BR between two lists
                if (!documentMode || documentMode < 9) {
                  tempElm = dom.create('br');
                  root.parentNode.insertBefore(tempElm, root);
                }

                rng.setStartBefore(root);
                rng.setEndBefore(root);
              } else {
                rng.setStartAfter(root);
                rng.setEndAfter(root);
              }
            } else {
              rng.setStart(root, 0);
              rng.setEnd(root, 0);
            }
          }

          selection.setRng(rng);

          // Remove tempElm created for old IE:s
          dom.remove(tempElm);
          selection.scrollIntoView(root);
        }

        function setForcedBlockAttrs(node) {
          var forcedRootBlockName = settings.forced_root_block;

          if (forcedRootBlockName && forcedRootBlockName.toLowerCase() === node.tagName.toLowerCase()) {
            dom.setAttribs(node, settings.forced_root_block_attrs);
          }
        }

        // Creates a new block element by cloning the current one or creating a new one if the name is specified
        // This function will also copy any text formatting from the parent block and add it to the new one
        function createNewBlock(name) {
          var node = container, block, clonedNode, caretNode, textInlineElements = schema.getTextInlineElements();

          if (name || parentBlockName == "TABLE" || parentBlockName == "HR") {
            block = dom.create(name || newBlockName);
            setForcedBlockAttrs(block);
          } else {
            block = parentBlock.cloneNode(false);
          }

          caretNode = block;

          if (settings.keep_styles === false) {
            dom.setAttrib(block, 'style', null); // wipe out any styles that came over with the block
            dom.setAttrib(block, 'class', null);
          } else {
            // Clone any parent styles
            do {
              if (textInlineElements[node.nodeName]) {
                // Never clone a caret containers
                if (node.id == '_mce_caret') {
                  continue;
                }

                clonedNode = node.cloneNode(false);
                dom.setAttrib(clonedNode, 'id', ''); // Remove ID since it needs to be document unique

                if (block.hasChildNodes()) {
                  clonedNode.appendChild(block.firstChild);
                  block.appendChild(clonedNode);
                } else {
                  caretNode = clonedNode;
                  block.appendChild(clonedNode);
                }
              }
            } while ((node = node.parentNode) && node != editableRoot);
          }

          // BR is needed in empty blocks on non IE browsers
          if (!isIE) {
            caretNode.innerHTML = '<br data-mce-bogus="1">';
          }

          return block;
        }

        // Returns true/false if the caret is at the start/end of the parent block element
        function isCaretAtStartOrEndOfBlock(start) {
          var walker, node, name, normalizedOffset;

          normalizedOffset = normalizeZwspOffset(start, container, offset);

          // Caret is in the middle of a text node like "a|b"
          if (container.nodeType == 3 && (start ? normalizedOffset > 0 : normalizedOffset < container.nodeValue.length)) {
            return false;
          }

          // If after the last element in block node edge case for #5091
          if (container.parentNode == parentBlock && isAfterLastNodeInContainer && !start) {
            return true;
          }

          // If the caret if before the first element in parentBlock
          if (start && container.nodeType == 1 && container == parentBlock.firstChild) {
            return true;
          }

          // Caret can be before/after a table or a hr
          if (containerAndSiblingName(container, 'TABLE') || containerAndSiblingName(container, 'HR')) {
            return (isAfterLastNodeInContainer && !start) || (!isAfterLastNodeInContainer && start);
          }

          // Walk the DOM and look for text nodes or non empty elements
          walker = new TreeWalker(container, parentBlock);

          // If caret is in beginning or end of a text block then jump to the next/previous node
          if (container.nodeType == 3) {
            if (start && normalizedOffset === 0) {
              walker.prev();
            } else if (!start && normalizedOffset == container.nodeValue.length) {
              walker.next();
            }
          }

          while ((node = walker.current())) {
            if (node.nodeType === 1) {
              // Ignore bogus elements
              if (!node.getAttribute('data-mce-bogus')) {
                // Keep empty elements like <img /> <input /> but not trailing br:s like <p>text|<br></p>
                name = node.nodeName.toLowerCase();
                if (nonEmptyElementsMap[name] && name !== 'br') {
                  return false;
                }
              }
            } else if (node.nodeType === 3 && !/^[ \t\r\n]*$/.test(node.nodeValue)) {
              return false;
            }

            if (start) {
              walker.prev();
            } else {
              walker.next();
            }
          }

          return true;
        }

        // Wraps any text nodes or inline elements in the specified forced root block name
        function wrapSelfAndSiblingsInDefaultBlock(container, offset) {
          var newBlock, parentBlock, startNode, node, next, rootBlockName, blockName = newBlockName || 'P';

          // Not in a block element or in a table cell or caption
          parentBlock = dom.getParent(container, dom.isBlock);
          if (!parentBlock || !canSplitBlock(dom, parentBlock)) {
            parentBlock = parentBlock || editableRoot;

            if (parentBlock == editor.getBody() || isTableCell(parentBlock)) {
              rootBlockName = parentBlock.nodeName.toLowerCase();
            } else {
              rootBlockName = parentBlock.parentNode.nodeName.toLowerCase();
            }

            if (!parentBlock.hasChildNodes()) {
              newBlock = dom.create(blockName);
              setForcedBlockAttrs(newBlock);
              parentBlock.appendChild(newBlock);
              rng.setStart(newBlock, 0);
              rng.setEnd(newBlock, 0);
              return newBlock;
            }

            // Find parent that is the first child of parentBlock
            node = container;
            while (node.parentNode != parentBlock) {
              node = node.parentNode;
            }

            // Loop left to find start node start wrapping at
            while (node && !dom.isBlock(node)) {
              startNode = node;
              node = node.previousSibling;
            }

            if (startNode && schema.isValidChild(rootBlockName, blockName.toLowerCase())) {
              newBlock = dom.create(blockName);
              setForcedBlockAttrs(newBlock);
              startNode.parentNode.insertBefore(newBlock, startNode);

              // Start wrapping until we hit a block
              node = startNode;
              while (node && !dom.isBlock(node)) {
                next = node.nextSibling;
                newBlock.appendChild(node);
                node = next;
              }

              // Restore range to it's past location
              rng.setStart(container, offset);
              rng.setEnd(container, offset);
            }
          }

          return container;
        }

        // Inserts a block or br before/after or in the middle of a split list of the LI is empty
        function handleEmptyListItem() {
          function isFirstOrLastLi(first) {
            var node = containerBlock[first ? 'firstChild' : 'lastChild'];

            // Find first/last element since there might be whitespace there
            while (node) {
              if (node.nodeType == 1) {
                break;
              }

              node = node[first ? 'nextSibling' : 'previousSibling'];
            }

            return node === parentBlock;
          }

          function getContainerBlock() {
            var containerBlockParent = containerBlock.parentNode;

            if (/^(LI|DT|DD)$/.test(containerBlockParent.nodeName)) {
              return containerBlockParent;
            }

            return containerBlock;
          }

          if (containerBlock == editor.getBody()) {
            return;
          }

          // Check if we are in an nested list
          var containerBlockParentName = containerBlock.parentNode.nodeName;
          if (/^(OL|UL|LI)$/.test(containerBlockParentName)) {
            newBlockName = 'LI';
          }

          newBlock = newBlockName ? createNewBlock(newBlockName) : dom.create('BR');

          if (isFirstOrLastLi(true) && isFirstOrLastLi()) {
            if (containerBlockParentName == 'LI') {
              // Nested list is inside a LI
              dom.insertAfter(newBlock, getContainerBlock());
            } else {
              // Is first and last list item then replace the OL/UL with a text block
              dom.replace(newBlock, containerBlock);
            }
          } else if (isFirstOrLastLi(true)) {
            if (containerBlockParentName == 'LI') {
              // List nested in an LI then move the list to a new sibling LI
              dom.insertAfter(newBlock, getContainerBlock());
              newBlock.appendChild(dom.doc.createTextNode(' ')); // Needed for IE so the caret can be placed
              newBlock.appendChild(containerBlock);
            } else {
              // First LI in list then remove LI and add text block before list
              containerBlock.parentNode.insertBefore(newBlock, containerBlock);
            }
          } else if (isFirstOrLastLi()) {
            // Last LI in list then remove LI and add text block after list
            dom.insertAfter(newBlock, getContainerBlock());
            renderBlockOnIE(dom, selection, newBlock);
          } else {
            // Middle LI in list the split the list and insert a text block in the middle
            // Extract after fragment and insert it after the current block
            containerBlock = getContainerBlock();
            tmpRng = rng.cloneRange();
            tmpRng.setStartAfter(parentBlock);
            tmpRng.setEndAfter(containerBlock);
            fragment = tmpRng.extractContents();

            if (newBlockName == 'LI' && fragment.firstChild.nodeName == 'LI') {
              newBlock = fragment.firstChild;
              dom.insertAfter(fragment, containerBlock);
            } else {
              dom.insertAfter(fragment, containerBlock);
              dom.insertAfter(newBlock, containerBlock);
            }
          }

          dom.remove(parentBlock);
          moveToCaretPosition(newBlock);
          undoManager.add();
        }

        // Inserts a BR element if the forced_root_block option is set to false or empty string
        function insertBr() {
          editor.execCommand("InsertLineBreak", false, evt);
        }

        // Trims any linebreaks at the beginning of node user for example when pressing enter in a PRE element
        function trimLeadingLineBreaks(node) {
          do {
            if (node.nodeType === 3) {
              node.nodeValue = node.nodeValue.replace(/^[\r\n]+/, '');
            }

            node = node.firstChild;
          } while (node);
        }

        function getEditableRoot(node) {
          var root = dom.getRoot(), parent, editableRoot;

          // Get all parents until we hit a non editable parent or the root
          parent = node;
          while (parent !== root && dom.getContentEditable(parent) !== "false") {
            if (dom.getContentEditable(parent) === "true") {
              editableRoot = parent;
            }

            parent = parent.parentNode;
          }

          return parent !== root ? editableRoot : root;
        }

        // Adds a BR at the end of blocks that only contains an IMG or INPUT since
        // these might be floated and then they won't expand the block
        function addBrToBlockIfNeeded(block) {
          var lastChild;

          // IE will render the blocks correctly other browsers needs a BR
          if (!isIE) {
            block.normalize(); // Remove empty text nodes that got left behind by the extract

            // Check if the block is empty or contains a floated last child
            lastChild = block.lastChild;
            if (!lastChild || (/^(left|right)$/gi.test(dom.getStyle(lastChild, 'float', true)))) {
              dom.add(block, 'br');
            }
          }
        }

        function insertNewBlockAfter() {
          // If the caret is at the end of a header we produce a P tag after it similar to Word unless we are in a hgroup
          if (/^(H[1-6]|PRE|FIGURE)$/.test(parentBlockName) && containerBlockName != 'HGROUP') {
            newBlock = createNewBlock(newBlockName);
          } else {
            newBlock = createNewBlock();
          }

          // Split the current container block element if enter is pressed inside an empty inner block element
          if (settings.end_container_on_empty_block && canSplitBlock(dom, containerBlock) && dom.isEmpty(parentBlock)) {
            // Split container block for example a BLOCKQUOTE at the current blockParent location for example a P
            newBlock = dom.split(containerBlock, parentBlock);
          } else {
            dom.insertAfter(newBlock, parentBlock);
          }

          moveToCaretPosition(newBlock);
        }

        rng = selection.getRng(true);

        // Event is blocked by some other handler for example the lists plugin
        if (evt.isDefaultPrevented()) {
          return;
        }

        // Delete any selected contents
        if (!rng.collapsed) {
          editor.execCommand('Delete');
          return;
        }

        // Setup range items and newBlockName
        new RangeUtils(dom).normalize(rng);
        container = rng.startContainer;
        offset = rng.startOffset;
        newBlockName = (settings.force_p_newlines ? 'p' : '') || settings.forced_root_block;
        newBlockName = newBlockName ? newBlockName.toUpperCase() : '';
        documentMode = dom.doc.documentMode;
        shiftKey = evt.shiftKey;

        // Resolve node index
        if (container.nodeType == 1 && container.hasChildNodes()) {
          isAfterLastNodeInContainer = offset > container.childNodes.length - 1;

          container = container.childNodes[Math.min(offset, container.childNodes.length - 1)] || container;
          if (isAfterLastNodeInContainer && container.nodeType == 3) {
            offset = container.nodeValue.length;
          } else {
            offset = 0;
          }
        }

        // Get editable root node, normally the body element but sometimes a div or span
        editableRoot = getEditableRoot(container);

        // If there is no editable root then enter is done inside a contentEditable false element
        if (!editableRoot) {
          return;
        }

        undoManager.beforeChange();

        // If editable root isn't block nor the root of the editor
        if (!dom.isBlock(editableRoot) && editableRoot != dom.getRoot()) {
          if (!newBlockName || shiftKey) {
            insertBr();
          }

          return;
        }

        // Wrap the current node and it's sibling in a default block if it's needed.
        // for example this <td>text|<b>text2</b></td> will become this <td><p>text|<b>text2</p></b></td>
        // This won't happen if root blocks are disabled or the shiftKey is pressed
        if ((newBlockName && !shiftKey) || (!newBlockName && shiftKey)) {
          container = wrapSelfAndSiblingsInDefaultBlock(container, offset);
        }

        // Find parent block and setup empty block paddings
        parentBlock = dom.getParent(container, dom.isBlock);
        containerBlock = parentBlock ? dom.getParent(parentBlock.parentNode, dom.isBlock) : null;

        // Setup block names
        parentBlockName = parentBlock ? parentBlock.nodeName.toUpperCase() : ''; // IE < 9 & HTML5
        containerBlockName = containerBlock ? containerBlock.nodeName.toUpperCase() : ''; // IE < 9 & HTML5

        // Enter inside block contained within a LI then split or insert before/after LI
        if (containerBlockName == 'LI' && !evt.ctrlKey) {
          parentBlock = containerBlock;
          parentBlockName = containerBlockName;
        }

        if (editor.undoManager.typing) {
          editor.undoManager.typing = false;
          editor.undoManager.add();
        }

        // Handle enter in list item
        if (/^(LI|DT|DD)$/.test(parentBlockName)) {
          if (!newBlockName && shiftKey) {
            insertBr();
            return;
          }

          // Handle enter inside an empty list item
          if (dom.isEmpty(parentBlock)) {
            handleEmptyListItem();
            return;
          }
        }

        // Don't split PRE tags but insert a BR instead easier when writing code samples etc
        if (parentBlockName == 'PRE' && settings.br_in_pre !== false) {
          if (!shiftKey) {
            insertBr();
            return;
          }
        } else {
          // If no root block is configured then insert a BR by default or if the shiftKey is pressed
          if ((!newBlockName && !shiftKey && parentBlockName != 'LI') || (newBlockName && shiftKey)) {
            insertBr();
            return;
          }
        }

        // If parent block is root then never insert new blocks
        if (newBlockName && parentBlock === editor.getBody()) {
          return;
        }

        // Default block name if it's not configured
        newBlockName = newBlockName || 'P';

        // Insert new block before/after the parent block depending on caret location
        if (CaretContainer.isCaretContainerBlock(parentBlock)) {
          newBlock = CaretContainer.showCaretContainerBlock(parentBlock);
          if (dom.isEmpty(parentBlock)) {
            emptyBlock(parentBlock);
          }
          moveToCaretPosition(newBlock);
        } else if (isCaretAtStartOrEndOfBlock()) {
          insertNewBlockAfter();
        } else if (isCaretAtStartOrEndOfBlock(true)) {
          // Insert new block before
          newBlock = parentBlock.parentNode.insertBefore(createNewBlock(), parentBlock);
          renderBlockOnIE(dom, selection, newBlock);

          // Adjust caret position if HR
          containerAndSiblingName(parentBlock, 'HR') ? moveToCaretPosition(newBlock) : moveToCaretPosition(parentBlock);
        } else {
          // Extract after fragment and insert it after the current block
          tmpRng = includeZwspInRange(rng).cloneRange();
          tmpRng.setEndAfter(parentBlock);
          fragment = tmpRng.extractContents();
          trimLeadingLineBreaks(fragment);
          newBlock = fragment.firstChild;
          dom.insertAfter(fragment, parentBlock);
          trimInlineElementsOnLeftSideOfBlock(dom, nonEmptyElementsMap, newBlock);
          addBrToBlockIfNeeded(parentBlock);

          if (dom.isEmpty(parentBlock)) {
            emptyBlock(parentBlock);
          }

          newBlock.normalize();

          // New block might become empty if it's <p><b>a |</b></p>
          if (dom.isEmpty(newBlock)) {
            dom.remove(newBlock);
            insertNewBlockAfter();
          } else {
            moveToCaretPosition(newBlock);
          }
        }

        dom.setAttrib(newBlock, 'id', ''); // Remove ID since it needs to be document unique

        // Allow custom handling of new blocks
        editor.fire('NewBlock', { newBlock: newBlock });

        undoManager.typing = false;
        undoManager.add();
      }

      editor.on('keydown', function (evt) {
        if (evt.keyCode == 13) {
          if (handleEnterKey(evt) !== false) {
            evt.preventDefault();
          }
        }
      });
    };

    return {
      setup: setup
    };
  }
);

/**
 * InsertSpace.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.InsertSpace',
  [
    'ephox.katamari.api.Fun',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.NodeType',
    'tinymce.core.keyboard.BoundaryLocation'
  ],
  function (Fun, CaretPosition, NodeType, BoundaryLocation) {
    var isValidInsertPoint = function (location, caretPosition) {
      return isAtStartOrEnd(location) && NodeType.isText(caretPosition.container());
    };

    var insertNbspAtPosition = function (editor, caretPosition) {
      var container = caretPosition.container();
      var offset = caretPosition.offset();

      container.insertData(offset, '\u00a0');
      editor.selection.setCursorLocation(container, offset + 1);
    };

    var insertAtLocation = function (editor, caretPosition, location) {
      if (isValidInsertPoint(location, caretPosition)) {
        insertNbspAtPosition(editor, caretPosition);
        return true;
      } else {
        return false;
      }
    };

    var insertAtCaret = function (editor) {
      var caretPosition = CaretPosition.fromRangeStart(editor.selection.getRng());
      var boundaryLocation = BoundaryLocation.readLocation(editor.getBody(), caretPosition);
      return boundaryLocation.map(Fun.curry(insertAtLocation, editor, caretPosition)).getOr(false);
    };

    var isAtStartOrEnd = function (location) {
      return location.fold(
        Fun.constant(false), // Before
        Fun.constant(true),  // Start
        Fun.constant(true),  // End
        Fun.constant(false)  // After
      );
    };

    var insertAtSelection = function (editor) {
      return editor.selection.isCollapsed() ? insertAtCaret(editor) : false;
    };

    return {
      insertAtSelection: insertAtSelection
    };
  }
);

/**
 * SpaceKey.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.SpaceKey',
  [
    'ephox.katamari.api.Arr',
    'tinymce.core.keyboard.InsertSpace',
    'tinymce.core.keyboard.MatchKeys',
    'tinymce.core.util.VK'
  ],
  function (Arr, InsertSpace, MatchKeys, VK) {
    var setupKeyDownHandler = function (editor, caret) {
      editor.on('keydown', function (evt) {
        var matches = MatchKeys.match([
          { keyCode: VK.SPACEBAR, action: MatchKeys.action(InsertSpace.insertAtSelection, editor) }
        ], evt);

        Arr.find(matches, function (pattern) {
          return pattern.action();
        }).each(function (_) {
          evt.preventDefault();
        });
      });
    };

    var setup = function (editor) {
      setupKeyDownHandler(editor);
    };

    return {
      setup: setup
    };
  }
);

/**
 * KeyboardOverrides.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.keyboard.KeyboardOverrides',
  [
    'tinymce.core.keyboard.ArrowKeys',
    'tinymce.core.keyboard.BoundarySelection',
    'tinymce.core.keyboard.DeleteBackspaceKeys',
    'tinymce.core.keyboard.EnterKey',
    'tinymce.core.keyboard.SpaceKey'
  ],
  function (ArrowKeys, BoundarySelection, DeleteBackspaceKeys, EnterKey, SpaceKey) {
    var setup = function (editor) {
      var caret = BoundarySelection.setupSelectedState(editor);

      ArrowKeys.setup(editor, caret);
      DeleteBackspaceKeys.setup(editor, caret);
      EnterKey.setup(editor);
      SpaceKey.setup(editor);
    };

    return {
      setup: setup
    };
  }
);
/**
 * NodeChange.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles the nodechange event dispatching both manual and through selection change events.
 *
 * @class tinymce.NodeChange
 * @private
 */
define(
  'tinymce.core.NodeChange',
  [
    "tinymce.core.dom.RangeUtils",
    "tinymce.core.Env",
    "tinymce.core.util.Delay"
  ],
  function (RangeUtils, Env, Delay) {
    return function (editor) {
      var lastRng, lastPath = [];

      /**
       * Returns true/false if the current element path has been changed or not.
       *
       * @private
       * @return {Boolean} True if the element path is the same false if it's not.
       */
      function isSameElementPath(startElm) {
        var i, currentPath;

        currentPath = editor.$(startElm).parentsUntil(editor.getBody()).add(startElm);
        if (currentPath.length === lastPath.length) {
          for (i = currentPath.length; i >= 0; i--) {
            if (currentPath[i] !== lastPath[i]) {
              break;
            }
          }

          if (i === -1) {
            lastPath = currentPath;
            return true;
          }
        }

        lastPath = currentPath;

        return false;
      }

      // Gecko doesn't support the "selectionchange" event
      if (!('onselectionchange' in editor.getDoc())) {
        editor.on('NodeChange Click MouseUp KeyUp Focus', function (e) {
          var nativeRng, fakeRng;

          // Since DOM Ranges mutate on modification
          // of the DOM we need to clone it's contents
          nativeRng = editor.selection.getRng();
          fakeRng = {
            startContainer: nativeRng.startContainer,
            startOffset: nativeRng.startOffset,
            endContainer: nativeRng.endContainer,
            endOffset: nativeRng.endOffset
          };

          // Always treat nodechange as a selectionchange since applying
          // formatting to the current range wouldn't update the range but it's parent
          if (e.type == 'nodechange' || !RangeUtils.compareRanges(fakeRng, lastRng)) {
            editor.fire('SelectionChange');
          }

          lastRng = fakeRng;
        });
      }

      // IE has a bug where it fires a selectionchange on right click that has a range at the start of the body
      // When the contextmenu event fires the selection is located at the right location
      editor.on('contextmenu', function () {
        editor.fire('SelectionChange');
      });

      // Selection change is delayed ~200ms on IE when you click inside the current range
      editor.on('SelectionChange', function () {
        var startElm = editor.selection.getStart(true);

        // IE 8 will fire a selectionchange event with an incorrect selection
        // when focusing out of table cells. Click inside cell -> toolbar = Invalid SelectionChange event
        if (!Env.range && editor.selection.isCollapsed()) {
          return;
        }

        if (!isSameElementPath(startElm) && editor.dom.isChildOf(startElm, editor.getBody())) {
          editor.nodeChanged({ selectionChange: true });
        }
      });

      // Fire an extra nodeChange on mouseup for compatibility reasons
      editor.on('MouseUp', function (e) {
        if (!e.isDefaultPrevented()) {
          // Delay nodeChanged call for WebKit edge case issue where the range
          // isn't updated until after you click outside a selected image
          if (editor.selection.getNode().nodeName == 'IMG') {
            Delay.setEditorTimeout(editor, function () {
              editor.nodeChanged();
            });
          } else {
            editor.nodeChanged();
          }
        }
      });

      /**
       * Dispatches out a onNodeChange event to all observers. This method should be called when you
       * need to update the UI states or element path etc.
       *
       * @method nodeChanged
       * @param {Object} args Optional args to pass to NodeChange event handlers.
       */
      this.nodeChanged = function (args) {
        var selection = editor.selection, node, parents, root;

        // Fix for bug #1896577 it seems that this can not be fired while the editor is loading
        if (editor.initialized && selection && !editor.settings.disable_nodechange && !editor.readonly) {
          // Get start node
          root = editor.getBody();
          node = selection.getStart(true) || root;

          // Make sure the node is within the editor root or is the editor root
          if (node.ownerDocument != editor.getDoc() || !editor.dom.isChildOf(node, root)) {
            node = root;
          }

          // Get parents and add them to object
          parents = [];
          editor.dom.getParent(node, function (node) {
            if (node === root) {
              return true;
            }

            parents.push(node);
          });

          args = args || {};
          args.element = node;
          args.parents = parents;

          editor.fire('NodeChange', args);
        }
      };
    };
  }
);

/**
 * FakeCaret.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module contains logic for rendering a fake visual caret.
 *
 * @private
 * @class tinymce.caret.FakeCaret
 */
define(
  'tinymce.core.caret.FakeCaret',
  [
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretContainerRemove',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.dom.DomQuery',
    'tinymce.core.dom.NodeType',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.geom.ClientRect',
    'tinymce.core.util.Delay'
  ],
  function (CaretContainer, CaretContainerRemove, CaretPosition, DomQuery, NodeType, RangeUtils, ClientRect, Delay) {
    var isContentEditableFalse = NodeType.isContentEditableFalse;

    var isTableCell = function (node) {
      return node && /^(TD|TH)$/i.test(node.nodeName);
    };

    return function (rootNode, isBlock) {
      var cursorInterval, $lastVisualCaret, caretContainerNode;

      function getAbsoluteClientRect(node, before) {
        var clientRect = ClientRect.collapse(node.getBoundingClientRect(), before),
          docElm, scrollX, scrollY, margin, rootRect;

        if (rootNode.tagName == 'BODY') {
          docElm = rootNode.ownerDocument.documentElement;
          scrollX = rootNode.scrollLeft || docElm.scrollLeft;
          scrollY = rootNode.scrollTop || docElm.scrollTop;
        } else {
          rootRect = rootNode.getBoundingClientRect();
          scrollX = rootNode.scrollLeft - rootRect.left;
          scrollY = rootNode.scrollTop - rootRect.top;
        }

        clientRect.left += scrollX;
        clientRect.right += scrollX;
        clientRect.top += scrollY;
        clientRect.bottom += scrollY;
        clientRect.width = 1;

        margin = node.offsetWidth - node.clientWidth;

        if (margin > 0) {
          if (before) {
            margin *= -1;
          }

          clientRect.left += margin;
          clientRect.right += margin;
        }

        return clientRect;
      }

      function trimInlineCaretContainers() {
        var contentEditableFalseNodes, node, sibling, i, data;

        contentEditableFalseNodes = DomQuery('*[contentEditable=false]', rootNode);
        for (i = 0; i < contentEditableFalseNodes.length; i++) {
          node = contentEditableFalseNodes[i];

          sibling = node.previousSibling;
          if (CaretContainer.endsWithCaretContainer(sibling)) {
            data = sibling.data;

            if (data.length == 1) {
              sibling.parentNode.removeChild(sibling);
            } else {
              sibling.deleteData(data.length - 1, 1);
            }
          }

          sibling = node.nextSibling;
          if (CaretContainer.startsWithCaretContainer(sibling)) {
            data = sibling.data;

            if (data.length == 1) {
              sibling.parentNode.removeChild(sibling);
            } else {
              sibling.deleteData(0, 1);
            }
          }
        }

        return null;
      }

      function show(before, node) {
        var clientRect, rng;

        hide();

        if (isTableCell(node)) {
          return null;
        }

        if (isBlock(node)) {
          caretContainerNode = CaretContainer.insertBlock('p', node, before);
          clientRect = getAbsoluteClientRect(node, before);
          DomQuery(caretContainerNode).css('top', clientRect.top);

          $lastVisualCaret = DomQuery('<div class="mce-visual-caret" data-mce-bogus="all"></div>').css(clientRect).appendTo(rootNode);

          if (before) {
            $lastVisualCaret.addClass('mce-visual-caret-before');
          }

          startBlink();

          rng = node.ownerDocument.createRange();
          rng.setStart(caretContainerNode, 0);
          rng.setEnd(caretContainerNode, 0);
        } else {
          caretContainerNode = CaretContainer.insertInline(node, before);
          rng = node.ownerDocument.createRange();

          if (isContentEditableFalse(caretContainerNode.nextSibling)) {
            rng.setStart(caretContainerNode, 0);
            rng.setEnd(caretContainerNode, 0);
          } else {
            rng.setStart(caretContainerNode, 1);
            rng.setEnd(caretContainerNode, 1);
          }

          return rng;
        }

        return rng;
      }

      function hide() {
        trimInlineCaretContainers();

        if (caretContainerNode) {
          CaretContainerRemove.remove(caretContainerNode);
          caretContainerNode = null;
        }

        if ($lastVisualCaret) {
          $lastVisualCaret.remove();
          $lastVisualCaret = null;
        }

        clearInterval(cursorInterval);
      }

      function startBlink() {
        cursorInterval = Delay.setInterval(function () {
          DomQuery('div.mce-visual-caret', rootNode).toggleClass('mce-visual-caret-hidden');
        }, 500);
      }

      function destroy() {
        Delay.clearInterval(cursorInterval);
      }

      function getCss() {
        return (
          '.mce-visual-caret {' +
          'position: absolute;' +
          'background-color: black;' +
          'background-color: currentcolor;' +
          '}' +
          '.mce-visual-caret-hidden {' +
          'display: none;' +
          '}' +
          '*[data-mce-caret] {' +
          'position: absolute;' +
          'left: -1000px;' +
          'right: auto;' +
          'top: 0;' +
          'margin: 0;' +
          'padding: 0;' +
          '}'
        );
      }

      return {
        show: show,
        hide: hide,
        getCss: getCss,
        destroy: destroy
      };
    };
  }
);
/**
 * MousePosition.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module calculates an absolute coordinate inside the editor body for both local and global mouse events.
 *
 * @private
 * @class tinymce.dom.MousePosition
 */
define(
  'tinymce.core.dom.MousePosition',
  [
  ],
  function () {
    var getAbsolutePosition = function (elm) {
      var doc, docElem, win, clientRect;

      clientRect = elm.getBoundingClientRect();
      doc = elm.ownerDocument;
      docElem = doc.documentElement;
      win = doc.defaultView;

      return {
        top: clientRect.top + win.pageYOffset - docElem.clientTop,
        left: clientRect.left + win.pageXOffset - docElem.clientLeft
      };
    };

    var getBodyPosition = function (editor) {
      return editor.inline ? getAbsolutePosition(editor.getBody()) : { left: 0, top: 0 };
    };

    var getScrollPosition = function (editor) {
      var body = editor.getBody();
      return editor.inline ? { left: body.scrollLeft, top: body.scrollTop } : { left: 0, top: 0 };
    };

    var getBodyScroll = function (editor) {
      var body = editor.getBody(), docElm = editor.getDoc().documentElement;
      var inlineScroll = { left: body.scrollLeft, top: body.scrollTop };
      var iframeScroll = { left: body.scrollLeft || docElm.scrollLeft, top: body.scrollTop || docElm.scrollTop };

      return editor.inline ? inlineScroll : iframeScroll;
    };

    var getMousePosition = function (editor, event) {
      if (event.target.ownerDocument !== editor.getDoc()) {
        var iframePosition = getAbsolutePosition(editor.getContentAreaContainer());
        var scrollPosition = getBodyScroll(editor);

        return {
          left: event.pageX - iframePosition.left + scrollPosition.left,
          top: event.pageY - iframePosition.top + scrollPosition.top
        };
      }

      return {
        left: event.pageX,
        top: event.pageY
      };
    };

    var calculatePosition = function (bodyPosition, scrollPosition, mousePosition) {
      return {
        pageX: (mousePosition.left - bodyPosition.left) + scrollPosition.left,
        pageY: (mousePosition.top - bodyPosition.top) + scrollPosition.top
      };
    };

    var calc = function (editor, event) {
      return calculatePosition(getBodyPosition(editor), getScrollPosition(editor), getMousePosition(editor, event));
    };

    return {
      calc: calc
    };
  }
);

/**
 * DragDropOverrides.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module contains logic overriding the drag/drop logic of the editor.
 *
 * @private
 * @class tinymce.DragDropOverrides
 */
define(
  'tinymce.core.DragDropOverrides',
  [
    "tinymce.core.dom.NodeType",
    "tinymce.core.util.Arr",
    "tinymce.core.util.Fun",
    "tinymce.core.util.Delay",
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.dom.MousePosition"
  ],
  function (
    NodeType, Arr, Fun, Delay, DOMUtils, MousePosition
  ) {
    var isContentEditableFalse = NodeType.isContentEditableFalse,
      isContentEditableTrue = NodeType.isContentEditableTrue;

    var isDraggable = function (rootElm, elm) {
      return isContentEditableFalse(elm) && elm !== rootElm;
    };

    var isValidDropTarget = function (editor, targetElement, dragElement) {
      if (targetElement === dragElement || editor.dom.isChildOf(targetElement, dragElement)) {
        return false;
      }

      if (isContentEditableFalse(targetElement)) {
        return false;
      }

      return true;
    };

    var cloneElement = function (elm) {
      var cloneElm = elm.cloneNode(true);
      cloneElm.removeAttribute('data-mce-selected');
      return cloneElm;
    };

    var createGhost = function (editor, elm, width, height) {
      var clonedElm = elm.cloneNode(true);

      editor.dom.setStyles(clonedElm, { width: width, height: height });
      editor.dom.setAttrib(clonedElm, 'data-mce-selected', null);

      var ghostElm = editor.dom.create('div', {
        'class': 'mce-drag-container',
        'data-mce-bogus': 'all',
        unselectable: 'on',
        contenteditable: 'false'
      });

      editor.dom.setStyles(ghostElm, {
        position: 'absolute',
        opacity: 0.5,
        overflow: 'hidden',
        border: 0,
        padding: 0,
        margin: 0,
        width: width,
        height: height
      });

      editor.dom.setStyles(clonedElm, {
        margin: 0,
        boxSizing: 'border-box'
      });

      ghostElm.appendChild(clonedElm);

      return ghostElm;
    };

    var appendGhostToBody = function (ghostElm, bodyElm) {
      if (ghostElm.parentNode !== bodyElm) {
        bodyElm.appendChild(ghostElm);
      }
    };

    var moveGhost = function (ghostElm, position, width, height, maxX, maxY) {
      var overflowX = 0, overflowY = 0;

      ghostElm.style.left = position.pageX + 'px';
      ghostElm.style.top = position.pageY + 'px';

      if (position.pageX + width > maxX) {
        overflowX = (position.pageX + width) - maxX;
      }

      if (position.pageY + height > maxY) {
        overflowY = (position.pageY + height) - maxY;
      }

      ghostElm.style.width = (width - overflowX) + 'px';
      ghostElm.style.height = (height - overflowY) + 'px';
    };

    var removeElement = function (elm) {
      if (elm && elm.parentNode) {
        elm.parentNode.removeChild(elm);
      }
    };

    var isLeftMouseButtonPressed = function (e) {
      return e.button === 0;
    };

    var hasDraggableElement = function (state) {
      return state.element;
    };

    var applyRelPos = function (state, position) {
      return {
        pageX: position.pageX - state.relX,
        pageY: position.pageY + 5
      };
    };

    var start = function (state, editor) {
      return function (e) {
        if (isLeftMouseButtonPressed(e)) {
          var ceElm = Arr.find(editor.dom.getParents(e.target), Fun.or(isContentEditableFalse, isContentEditableTrue));

          if (isDraggable(editor.getBody(), ceElm)) {
            var elmPos = editor.dom.getPos(ceElm);
            var bodyElm = editor.getBody();
            var docElm = editor.getDoc().documentElement;

            state.element = ceElm;
            state.screenX = e.screenX;
            state.screenY = e.screenY;
            state.maxX = (editor.inline ? bodyElm.scrollWidth : docElm.offsetWidth) - 2;
            state.maxY = (editor.inline ? bodyElm.scrollHeight : docElm.offsetHeight) - 2;
            state.relX = e.pageX - elmPos.x;
            state.relY = e.pageY - elmPos.y;
            state.width = ceElm.offsetWidth;
            state.height = ceElm.offsetHeight;
            state.ghost = createGhost(editor, ceElm, state.width, state.height);
          }
        }
      };
    };

    var move = function (state, editor) {
      // Reduces laggy drag behavior on Gecko
      var throttledPlaceCaretAt = Delay.throttle(function (clientX, clientY) {
        editor._selectionOverrides.hideFakeCaret();
        editor.selection.placeCaretAt(clientX, clientY);
      }, 0);

      return function (e) {
        var movement = Math.max(Math.abs(e.screenX - state.screenX), Math.abs(e.screenY - state.screenY));

        if (hasDraggableElement(state) && !state.dragging && movement > 10) {
          var args = editor.fire('dragstart', { target: state.element });
          if (args.isDefaultPrevented()) {
            return;
          }

          state.dragging = true;
          editor.focus();
        }

        if (state.dragging) {
          var targetPos = applyRelPos(state, MousePosition.calc(editor, e));

          appendGhostToBody(state.ghost, editor.getBody());
          moveGhost(state.ghost, targetPos, state.width, state.height, state.maxX, state.maxY);

          throttledPlaceCaretAt(e.clientX, e.clientY);
        }
      };
    };

    // Returns the raw element instead of the fake cE=false element
    var getRawTarget = function (selection) {
      var rng = selection.getSel().getRangeAt(0);
      var startContainer = rng.startContainer;
      return startContainer.nodeType === 3 ? startContainer.parentNode : startContainer;
    };

    var drop = function (state, editor) {
      return function (e) {
        if (state.dragging) {
          if (isValidDropTarget(editor, getRawTarget(editor.selection), state.element)) {
            var targetClone = cloneElement(state.element);

            var args = editor.fire('drop', {
              targetClone: targetClone,
              clientX: e.clientX,
              clientY: e.clientY
            });

            if (!args.isDefaultPrevented()) {
              targetClone = args.targetClone;

              editor.undoManager.transact(function () {
                removeElement(state.element);
                editor.insertContent(editor.dom.getOuterHTML(targetClone));
                editor._selectionOverrides.hideFakeCaret();
              });
            }
          }
        }

        removeDragState(state);
      };
    };

    var stop = function (state, editor) {
      return function () {
        removeDragState(state);
        if (state.dragging) {
          editor.fire('dragend');
        }
      };
    };

    var removeDragState = function (state) {
      state.dragging = false;
      state.element = null;
      removeElement(state.ghost);
    };

    var bindFakeDragEvents = function (editor) {
      var state = {}, pageDom, dragStartHandler, dragHandler, dropHandler, dragEndHandler, rootDocument;

      pageDom = DOMUtils.DOM;
      rootDocument = document;
      dragStartHandler = start(state, editor);
      dragHandler = move(state, editor);
      dropHandler = drop(state, editor);
      dragEndHandler = stop(state, editor);

      editor.on('mousedown', dragStartHandler);
      editor.on('mousemove', dragHandler);
      editor.on('mouseup', dropHandler);

      pageDom.bind(rootDocument, 'mousemove', dragHandler);
      pageDom.bind(rootDocument, 'mouseup', dragEndHandler);

      editor.on('remove', function () {
        pageDom.unbind(rootDocument, 'mousemove', dragHandler);
        pageDom.unbind(rootDocument, 'mouseup', dragEndHandler);
      });
    };

    var blockIeDrop = function (editor) {
      editor.on('drop', function (e) {
        // FF doesn't pass out clientX/clientY for drop since this is for IE we just use null instead
        var realTarget = typeof e.clientX !== 'undefined' ? editor.getDoc().elementFromPoint(e.clientX, e.clientY) : null;

        if (isContentEditableFalse(realTarget) || isContentEditableFalse(editor.dom.getContentEditableParent(realTarget))) {
          e.preventDefault();
        }
      });
    };

    var init = function (editor) {
      bindFakeDragEvents(editor);
      blockIeDrop(editor);
    };

    return {
      init: init
    };
  }
);

/**
 * SelectionOverrides.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module contains logic overriding the selection with keyboard/mouse
 * around contentEditable=false regions.
 *
 * @example
 * // Disable the default cE=false selection
 * tinymce.activeEditor.on('ShowCaret BeforeObjectSelected', function(e) {
 *     e.preventDefault();
 * });
 *
 * @private
 * @class tinymce.SelectionOverrides
 */
define(
  'tinymce.core.SelectionOverrides',
  [
    'tinymce.core.caret.CaretContainer',
    'tinymce.core.caret.CaretPosition',
    'tinymce.core.caret.CaretUtils',
    'tinymce.core.caret.CaretWalker',
    'tinymce.core.caret.FakeCaret',
    'tinymce.core.caret.LineUtils',
    'tinymce.core.dom.NodeType',
    'tinymce.core.DragDropOverrides',
    'tinymce.core.Env',
    'tinymce.core.geom.ClientRect',
    'tinymce.core.keyboard.CefUtils',
    'tinymce.core.util.Arr',
    'tinymce.core.util.Delay',
    'tinymce.core.util.Fun',
    'tinymce.core.util.VK'
  ],
  function (CaretContainer, CaretPosition, CaretUtils, CaretWalker, FakeCaret, LineUtils, NodeType, DragDropOverrides, Env, ClientRect, CefUtils, Arr, Delay, Fun, VK) {
    var isContentEditableTrue = NodeType.isContentEditableTrue,
      isContentEditableFalse = NodeType.isContentEditableFalse,
      isAfterContentEditableFalse = CaretUtils.isAfterContentEditableFalse,
      isBeforeContentEditableFalse = CaretUtils.isBeforeContentEditableFalse;

    function SelectionOverrides(editor) {
      var rootNode = editor.getBody();
      var fakeCaret = new FakeCaret(editor.getBody(), isBlock),
        realSelectionId = 'sel-' + editor.dom.uniqueId(),
        selectedContentEditableNode;

      function isFakeSelectionElement(elm) {
        return editor.dom.hasClass(elm, 'mce-offscreen-selection');
      }

      function getRealSelectionElement() {
        var container = editor.dom.get(realSelectionId);
        return container ? container.getElementsByTagName('*')[0] : container;
      }

      function isBlock(node) {
        return editor.dom.isBlock(node);
      }

      function setRange(range) {
        //console.log('setRange', range);
        if (range) {
          editor.selection.setRng(range);
        }
      }

      function getRange() {
        return editor.selection.getRng();
      }

      function scrollIntoView(node, alignToTop) {
        editor.selection.scrollIntoView(node, alignToTop);
      }

      function showCaret(direction, node, before) {
        var e;

        e = editor.fire('ShowCaret', {
          target: node,
          direction: direction,
          before: before
        });

        if (e.isDefaultPrevented()) {
          return null;
        }

        scrollIntoView(node, direction === -1);

        return fakeCaret.show(before, node);
      }

      function getNormalizedRangeEndPoint(direction, range) {
        range = CaretUtils.normalizeRange(direction, rootNode, range);

        if (direction == -1) {
          return CaretPosition.fromRangeStart(range);
        }

        return CaretPosition.fromRangeEnd(range);
      }

      function showBlockCaretContainer(blockCaretContainer) {
        if (blockCaretContainer.hasAttribute('data-mce-caret')) {
          CaretContainer.showCaretContainerBlock(blockCaretContainer);
          setRange(getRange()); // Removes control rect on IE
          scrollIntoView(blockCaretContainer[0]);
        }
      }

      function registerEvents() {
        function getContentEditableRoot(node) {
          var root = editor.getBody();

          while (node && node != root) {
            if (isContentEditableTrue(node) || isContentEditableFalse(node)) {
              return node;
            }

            node = node.parentNode;
          }

          return null;
        }

        function isXYWithinRange(clientX, clientY, range) {
          if (range.collapsed) {
            return false;
          }

          return Arr.reduce(range.getClientRects(), function (state, rect) {
            return state || ClientRect.containsXY(rect, clientX, clientY);
          }, false);
        }

        // Some browsers (Chrome) lets you place the caret after a cE=false
        // Make sure we render the caret container in this case
        editor.on('mouseup', function () {
          var range = getRange();

          if (range.collapsed) {
            setRange(CefUtils.renderCaretAtRange(editor, range));
          }
        });

        editor.on('click', function (e) {
          var contentEditableRoot;

          contentEditableRoot = getContentEditableRoot(e.target);
          if (contentEditableRoot) {
            // Prevent clicks on links in a cE=false element
            if (isContentEditableFalse(contentEditableRoot)) {
              e.preventDefault();
              editor.focus();
            }

            // Removes fake selection if a cE=true is clicked within a cE=false like the toc title
            if (isContentEditableTrue(contentEditableRoot)) {
              if (editor.dom.isChildOf(contentEditableRoot, editor.selection.getNode())) {
                removeContentEditableSelection();
              }
            }
          }
        });

        editor.on('blur NewBlock', function () {
          removeContentEditableSelection();
          hideFakeCaret();
        });

        function handleTouchSelect(editor) {
          var moved = false;

          editor.on('touchstart', function () {
            moved = false;
          });

          editor.on('touchmove', function () {
            moved = true;
          });

          editor.on('touchend', function (e) {
            var contentEditableRoot = getContentEditableRoot(e.target);

            if (isContentEditableFalse(contentEditableRoot)) {
              if (!moved) {
                e.preventDefault();
                setContentEditableSelection(CefUtils.selectNode(editor, contentEditableRoot));
              }
            }
          });
        }

        var hasNormalCaretPosition = function (elm) {
          var caretWalker = new CaretWalker(elm);

          if (!elm.firstChild) {
            return false;
          }

          var startPos = CaretPosition.before(elm.firstChild);
          var newPos = caretWalker.next(startPos);

          return newPos && !isBeforeContentEditableFalse(newPos) && !isAfterContentEditableFalse(newPos);
        };

        var isInSameBlock = function (node1, node2) {
          var block1 = editor.dom.getParent(node1, editor.dom.isBlock);
          var block2 = editor.dom.getParent(node2, editor.dom.isBlock);
          return block1 === block2;
        };

        var isContentKey = function (e) {
          if (e.keyCode >= 112 && e.keyCode <= 123) {
            return false;
          }

          return true;
        };

        // Checks if the target node is in a block and if that block has a caret position better than the
        // suggested caretNode this is to prevent the caret from being sucked in towards a cE=false block if
        // they are adjacent on the vertical axis
        var hasBetterMouseTarget = function (targetNode, caretNode) {
          var targetBlock = editor.dom.getParent(targetNode, editor.dom.isBlock);
          var caretBlock = editor.dom.getParent(caretNode, editor.dom.isBlock);

          return targetBlock && !isInSameBlock(targetBlock, caretBlock) && hasNormalCaretPosition(targetBlock);
        };

        handleTouchSelect(editor);

        editor.on('mousedown', function (e) {
          var contentEditableRoot;

          contentEditableRoot = getContentEditableRoot(e.target);
          if (contentEditableRoot) {
            if (isContentEditableFalse(contentEditableRoot)) {
              e.preventDefault();
              setContentEditableSelection(CefUtils.selectNode(editor, contentEditableRoot));
            } else {
              removeContentEditableSelection();

              // Check that we're not attempting a shift + click select within a contenteditable='true' element
              if (!(isContentEditableTrue(contentEditableRoot) && e.shiftKey) && !isXYWithinRange(e.clientX, e.clientY, editor.selection.getRng())) {
                editor.selection.placeCaretAt(e.clientX, e.clientY);
              }
            }
          } else {
            // Remove needs to be called here since the mousedown might alter the selection without calling selection.setRng
            // and therefore not fire the AfterSetSelectionRange event.
            removeContentEditableSelection();
            hideFakeCaret();

            var caretInfo = LineUtils.closestCaret(rootNode, e.clientX, e.clientY);
            if (caretInfo) {
              if (!hasBetterMouseTarget(e.target, caretInfo.node)) {
                e.preventDefault();
                editor.getBody().focus();
                setRange(showCaret(1, caretInfo.node, caretInfo.before));
              }
            }
          }
        });

        editor.on('keydown', function (e) {
          if (VK.modifierPressed(e)) {
            return;
          }

          switch (e.keyCode) {
            default:
              if (isContentEditableFalse(editor.selection.getNode()) && isContentKey(e)) {
                e.preventDefault();
              }
              break;
          }
        });

        editor.on('getSelectionRange', function (e) {
          var rng = e.range;

          if (selectedContentEditableNode) {
            if (!selectedContentEditableNode.parentNode) {
              selectedContentEditableNode = null;
              return;
            }

            rng = rng.cloneRange();
            rng.selectNode(selectedContentEditableNode);
            e.range = rng;
          }
        });

        editor.on('setSelectionRange', function (e) {
          var rng;

          rng = setContentEditableSelection(e.range, e.forward);
          if (rng) {
            e.range = rng;
          }
        });

        editor.on('AfterSetSelectionRange', function (e) {
          var rng = e.range;

          if (!isRangeInCaretContainer(rng)) {
            hideFakeCaret();
          }

          if (!isFakeSelectionElement(rng.startContainer.parentNode)) {
            removeContentEditableSelection();
          }
        });

        editor.on('focus', function () {
          // Make sure we have a proper fake caret on focus
          Delay.setEditorTimeout(editor, function () {
            editor.selection.setRng(CefUtils.renderRangeCaret(editor, editor.selection.getRng()));
          }, 0);
        });

        editor.on('copy', function (e) {
          var clipboardData = e.clipboardData;

          // Make sure we get proper html/text for the fake cE=false selection
          // Doesn't work at all on Edge since it doesn't have proper clipboardData support
          if (!e.isDefaultPrevented() && e.clipboardData && !Env.ie) {
            var realSelectionElement = getRealSelectionElement();
            if (realSelectionElement) {
              e.preventDefault();
              clipboardData.clearData();
              clipboardData.setData('text/html', realSelectionElement.outerHTML);
              clipboardData.setData('text/plain', realSelectionElement.outerText);
            }
          }
        });

        DragDropOverrides.init(editor);
      }

      function addCss() {
        var styles = editor.contentStyles, rootClass = '.mce-content-body';

        styles.push(fakeCaret.getCss());
        styles.push(
          rootClass + ' .mce-offscreen-selection {' +
          'position: absolute;' +
          'left: -9999999999px;' +
          'max-width: 1000000px;' +
          '}' +
          rootClass + ' *[contentEditable=false] {' +
          'cursor: default;' +
          '}' +
          rootClass + ' *[contentEditable=true] {' +
          'cursor: text;' +
          '}'
        );
      }

      function isWithinCaretContainer(node) {
        return (
          CaretContainer.isCaretContainer(node) ||
          CaretContainer.startsWithCaretContainer(node) ||
          CaretContainer.endsWithCaretContainer(node)
        );
      }

      function isRangeInCaretContainer(rng) {
        return isWithinCaretContainer(rng.startContainer) || isWithinCaretContainer(rng.endContainer);
      }

      function setContentEditableSelection(range, forward) {
        var node, $ = editor.$, dom = editor.dom, $realSelectionContainer, sel,
          startContainer, startOffset, endOffset, e, caretPosition, targetClone, origTargetClone;

        if (!range) {
          return null;
        }

        if (range.collapsed) {
          if (!isRangeInCaretContainer(range)) {
            if (forward === false) {
              caretPosition = getNormalizedRangeEndPoint(-1, range);

              if (isContentEditableFalse(caretPosition.getNode(true))) {
                return showCaret(-1, caretPosition.getNode(true), false);
              }

              if (isContentEditableFalse(caretPosition.getNode())) {
                return showCaret(-1, caretPosition.getNode(), !caretPosition.isAtEnd());
              }
            } else {
              caretPosition = getNormalizedRangeEndPoint(1, range);

              if (isContentEditableFalse(caretPosition.getNode())) {
                return showCaret(1, caretPosition.getNode(), !caretPosition.isAtEnd());
              }

              if (isContentEditableFalse(caretPosition.getNode(true))) {
                return showCaret(1, caretPosition.getNode(true), false);
              }
            }
          }

          return null;
        }

        startContainer = range.startContainer;
        startOffset = range.startOffset;
        endOffset = range.endOffset;

        // Normalizes <span cE=false>[</span>] to [<span cE=false></span>]
        if (startContainer.nodeType == 3 && startOffset == 0 && isContentEditableFalse(startContainer.parentNode)) {
          startContainer = startContainer.parentNode;
          startOffset = dom.nodeIndex(startContainer);
          startContainer = startContainer.parentNode;
        }

        if (startContainer.nodeType != 1) {
          return null;
        }

        if (endOffset == startOffset + 1) {
          node = startContainer.childNodes[startOffset];
        }

        if (!isContentEditableFalse(node)) {
          return null;
        }

        targetClone = origTargetClone = node.cloneNode(true);
        e = editor.fire('ObjectSelected', { target: node, targetClone: targetClone });
        if (e.isDefaultPrevented()) {
          return null;
        }

        targetClone = e.targetClone;
        $realSelectionContainer = $('#' + realSelectionId);
        if ($realSelectionContainer.length === 0) {
          $realSelectionContainer = $(
            '<div data-mce-bogus="all" class="mce-offscreen-selection"></div>'
          ).attr('id', realSelectionId);

          $realSelectionContainer.appendTo(editor.getBody());
        }

        range = editor.dom.createRng();

        // WHY is IE making things so hard! Copy on <i contentEditable="false">x</i> produces: <em>x</em>
        // This is a ridiculous hack where we place the selection from a block over the inline element
        // so that just the inline element is copied as is and not converted.
        if (targetClone === origTargetClone && Env.ie) {
          $realSelectionContainer.empty().append('<p style="font-size: 0" data-mce-bogus="all">\u00a0</p>').append(targetClone);
          range.setStartAfter($realSelectionContainer[0].firstChild.firstChild);
          range.setEndAfter(targetClone);
        } else {
          $realSelectionContainer.empty().append('\u00a0').append(targetClone).append('\u00a0');
          range.setStart($realSelectionContainer[0].firstChild, 1);
          range.setEnd($realSelectionContainer[0].lastChild, 0);
        }

        $realSelectionContainer.css({
          top: dom.getPos(node, editor.getBody()).y
        });

        $realSelectionContainer[0].focus();
        sel = editor.selection.getSel();
        sel.removeAllRanges();
        sel.addRange(range);

        editor.$('*[data-mce-selected]').removeAttr('data-mce-selected');
        node.setAttribute('data-mce-selected', 1);
        selectedContentEditableNode = node;
        hideFakeCaret();

        return range;
      }

      function removeContentEditableSelection() {
        if (selectedContentEditableNode) {
          selectedContentEditableNode.removeAttribute('data-mce-selected');
          editor.$('#' + realSelectionId).remove();
          selectedContentEditableNode = null;
        }
      }

      function destroy() {
        fakeCaret.destroy();
        selectedContentEditableNode = null;
      }

      function hideFakeCaret() {
        fakeCaret.hide();
      }

      if (Env.ceFalse) {
        registerEvents();
        addCss();
      }

      return {
        showCaret: showCaret,
        showBlockCaretContainer: showBlockCaretContainer,
        hideFakeCaret: hideFakeCaret,
        destroy: destroy
      };
    }

    return SelectionOverrides;
  }
);

/**
 * NodePath.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Handles paths of nodes within an element.
 *
 * @private
 * @class tinymce.dom.NodePath
 */
define(
  'tinymce.core.dom.NodePath',
  [
    "tinymce.core.dom.DOMUtils"
  ],
  function (DOMUtils) {
    function create(rootNode, targetNode, normalized) {
      var path = [];

      for (; targetNode && targetNode != rootNode; targetNode = targetNode.parentNode) {
        path.push(DOMUtils.nodeIndex(targetNode, normalized));
      }

      return path;
    }

    function resolve(rootNode, path) {
      var i, node, children;

      for (node = rootNode, i = path.length - 1; i >= 0; i--) {
        children = node.childNodes;

        if (path[i] > children.length - 1) {
          return null;
        }

        node = children[path[i]];
      }

      return node;
    }

    return {
      create: create,
      resolve: resolve
    };
  }
);
/**
 * Quirks.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 *
 * @ignore-file
 */

/**
 * This file includes fixes for various browser quirks it's made to make it easy to add/remove browser specific fixes.
 *
 * @private
 * @class tinymce.util.Quirks
 */
define(
  'tinymce.core.util.Quirks',
  [
    "tinymce.core.util.VK",
    "tinymce.core.dom.RangeUtils",
    "tinymce.core.dom.TreeWalker",
    "tinymce.core.dom.NodePath",
    "tinymce.core.html.Node",
    "tinymce.core.html.Entities",
    "tinymce.core.Env",
    "tinymce.core.util.Tools",
    "tinymce.core.util.Delay",
    "tinymce.core.caret.CaretContainer",
    "tinymce.core.caret.CaretPosition",
    "tinymce.core.caret.CaretWalker"
  ],
  function (VK, RangeUtils, TreeWalker, NodePath, Node, Entities, Env, Tools, Delay, CaretContainer, CaretPosition, CaretWalker) {
    return function (editor) {
      var each = Tools.each;
      var BACKSPACE = VK.BACKSPACE, DELETE = VK.DELETE, dom = editor.dom, selection = editor.selection,
        settings = editor.settings, parser = editor.parser, serializer = editor.serializer;
      var isGecko = Env.gecko, isIE = Env.ie, isWebKit = Env.webkit;
      var mceInternalUrlPrefix = 'data:text/mce-internal,';
      var mceInternalDataType = isIE ? 'Text' : 'URL';

      /**
       * Executes a command with a specific state this can be to enable/disable browser editing features.
       */
      function setEditorCommandState(cmd, state) {
        try {
          editor.getDoc().execCommand(cmd, false, state);
        } catch (ex) {
          // Ignore
        }
      }

      /**
       * Returns current IE document mode.
       */
      function getDocumentMode() {
        var documentMode = editor.getDoc().documentMode;

        return documentMode ? documentMode : 6;
      }

      /**
       * Returns true/false if the event is prevented or not.
       *
       * @private
       * @param {Event} e Event object.
       * @return {Boolean} true/false if the event is prevented or not.
       */
      function isDefaultPrevented(e) {
        return e.isDefaultPrevented();
      }

      /**
       * Sets Text/URL data on the event's dataTransfer object to a special data:text/mce-internal url.
       * This is to workaround the inability to set custom contentType on IE and Safari.
       * The editor's selected content is encoded into this url so drag and drop between editors will work.
       *
       * @private
       * @param {DragEvent} e Event object
       */
      function setMceInternalContent(e) {
        var selectionHtml, internalContent;

        if (e.dataTransfer) {
          if (editor.selection.isCollapsed() && e.target.tagName == 'IMG') {
            selection.select(e.target);
          }

          selectionHtml = editor.selection.getContent();

          // Safari/IE doesn't support custom dataTransfer items so we can only use URL and Text
          if (selectionHtml.length > 0) {
            internalContent = mceInternalUrlPrefix + escape(editor.id) + ',' + escape(selectionHtml);
            e.dataTransfer.setData(mceInternalDataType, internalContent);
          }
        }
      }

      /**
       * Gets content of special data:text/mce-internal url on the event's dataTransfer object.
       * This is to workaround the inability to set custom contentType on IE and Safari.
       * The editor's selected content is encoded into this url so drag and drop between editors will work.
       *
       * @private
       * @param {DragEvent} e Event object
       * @returns {String} mce-internal content
       */
      function getMceInternalContent(e) {
        var internalContent;

        if (e.dataTransfer) {
          internalContent = e.dataTransfer.getData(mceInternalDataType);

          if (internalContent && internalContent.indexOf(mceInternalUrlPrefix) >= 0) {
            internalContent = internalContent.substr(mceInternalUrlPrefix.length).split(',');

            return {
              id: unescape(internalContent[0]),
              html: unescape(internalContent[1])
            };
          }
        }

        return null;
      }

      /**
       * Inserts contents using the paste clipboard command if it's available if it isn't it will fallback
       * to the core command.
       *
       * @private
       * @param {String} content Content to insert at selection.
       * @param {Boolean} internal State if the paste is to be considered internal or external.
       */
      function insertClipboardContents(content, internal) {
        if (editor.queryCommandSupported('mceInsertClipboardContent')) {
          editor.execCommand('mceInsertClipboardContent', false, { content: content, internal: internal });
        } else {
          editor.execCommand('mceInsertContent', false, content);
        }
      }

      /**
       * Makes sure that the editor body becomes empty when backspace or delete is pressed in empty editors.
       *
       * For example:
       * <p><b>|</b></p>
       *
       * Or:
       * <h1>|</h1>
       *
       * Or:
       * [<h1></h1>]
       */
      function emptyEditorWhenDeleting() {
        function serializeRng(rng) {
          var body = dom.create("body");
          var contents = rng.cloneContents();
          body.appendChild(contents);
          return selection.serializer.serialize(body, { format: 'html' });
        }

        function allContentsSelected(rng) {
          if (!rng.setStart) {
            if (rng.item) {
              return false;
            }

            var bodyRng = rng.duplicate();
            bodyRng.moveToElementText(editor.getBody());
            return RangeUtils.compareRanges(rng, bodyRng);
          }

          var selection = serializeRng(rng);

          var allRng = dom.createRng();
          allRng.selectNode(editor.getBody());

          var allSelection = serializeRng(allRng);
          return selection === allSelection;
        }

        editor.on('keydown', function (e) {
          var keyCode = e.keyCode, isCollapsed, body;

          // Empty the editor if it's needed for example backspace at <p><b>|</b></p>
          if (!isDefaultPrevented(e) && (keyCode == DELETE || keyCode == BACKSPACE)) {
            isCollapsed = editor.selection.isCollapsed();
            body = editor.getBody();

            // Selection is collapsed but the editor isn't empty
            if (isCollapsed && !dom.isEmpty(body)) {
              return;
            }

            // Selection isn't collapsed but not all the contents is selected
            if (!isCollapsed && !allContentsSelected(editor.selection.getRng())) {
              return;
            }

            // Manually empty the editor
            e.preventDefault();
            editor.setContent('');

            if (body.firstChild && dom.isBlock(body.firstChild)) {
              editor.selection.setCursorLocation(body.firstChild, 0);
            } else {
              editor.selection.setCursorLocation(body, 0);
            }

            editor.nodeChanged();
          }
        });
      }

      /**
       * WebKit doesn't select all the nodes in the body when you press Ctrl+A.
       * IE selects more than the contents <body>[<p>a</p>]</body> instead of <body><p>[a]</p]</body> see bug #6438
       * This selects the whole body so that backspace/delete logic will delete everything
       */
      function selectAll() {
        editor.shortcuts.add('meta+a', null, 'SelectAll');
      }

      /**
       * WebKit has a weird issue where it some times fails to properly convert keypresses to input method keystrokes.
       * The IME on Mac doesn't initialize when it doesn't fire a proper focus event.
       *
       * This seems to happen when the user manages to click the documentElement element then the window doesn't get proper focus until
       * you enter a character into the editor.
       *
       * It also happens when the first focus in made to the body.
       *
       * See: https://bugs.webkit.org/show_bug.cgi?id=83566
       */
      function inputMethodFocus() {
        if (!editor.settings.content_editable) {
          // Case 1 IME doesn't initialize if you focus the document
          // Disabled since it was interferring with the cE=false logic
          // Also coultn't reproduce the issue on Safari 9
          /*dom.bind(editor.getDoc(), 'focusin', function() {
            selection.setRng(selection.getRng());
          });*/

          // Case 2 IME doesn't initialize if you click the documentElement it also doesn't properly fire the focusin event
          // Needs to be both down/up due to weird rendering bug on Chrome Windows
          dom.bind(editor.getDoc(), 'mousedown mouseup', function (e) {
            var rng;

            if (e.target == editor.getDoc().documentElement) {
              rng = selection.getRng();
              editor.getBody().focus();

              if (e.type == 'mousedown') {
                if (CaretContainer.isCaretContainer(rng.startContainer)) {
                  return;
                }

                // Edge case for mousedown, drag select and mousedown again within selection on Chrome Windows to render caret
                selection.placeCaretAt(e.clientX, e.clientY);
              } else {
                selection.setRng(rng);
              }
            }
          });
        }
      }

      /**
       * Backspacing in FireFox/IE from a paragraph into a horizontal rule results in a floating text node because the
       * browser just deletes the paragraph - the browser fails to merge the text node with a horizontal rule so it is
       * left there. TinyMCE sees a floating text node and wraps it in a paragraph on the key up event (ForceBlocks.js
       * addRootBlocks), meaning the action does nothing. With this code, FireFox/IE matche the behaviour of other
       * browsers.
       *
       * It also fixes a bug on Firefox where it's impossible to delete HR elements.
       */
      function removeHrOnBackspace() {
        editor.on('keydown', function (e) {
          if (!isDefaultPrevented(e) && e.keyCode === BACKSPACE) {
            // Check if there is any HR elements this is faster since getRng on IE 7 & 8 is slow
            if (!editor.getBody().getElementsByTagName('hr').length) {
              return;
            }

            if (selection.isCollapsed() && selection.getRng(true).startOffset === 0) {
              var node = selection.getNode();
              var previousSibling = node.previousSibling;

              if (node.nodeName == 'HR') {
                dom.remove(node);
                e.preventDefault();
                return;
              }

              if (previousSibling && previousSibling.nodeName && previousSibling.nodeName.toLowerCase() === "hr") {
                dom.remove(previousSibling);
                e.preventDefault();
              }
            }
          }
        });
      }

      /**
       * Firefox 3.x has an issue where the body element won't get proper focus if you click out
       * side it's rectangle.
       */
      function focusBody() {
        // Fix for a focus bug in FF 3.x where the body element
        // wouldn't get proper focus if the user clicked on the HTML element
        if (!window.Range.prototype.getClientRects) { // Detect getClientRects got introduced in FF 4
          editor.on('mousedown', function (e) {
            if (!isDefaultPrevented(e) && e.target.nodeName === "HTML") {
              var body = editor.getBody();

              // Blur the body it's focused but not correctly focused
              body.blur();

              // Refocus the body after a little while
              Delay.setEditorTimeout(editor, function () {
                body.focus();
              });
            }
          });
        }
      }

      /**
       * WebKit has a bug where it isn't possible to select image, hr or anchor elements
       * by clicking on them so we need to fake that.
       */
      function selectControlElements() {
        editor.on('click', function (e) {
          var target = e.target;

          // Workaround for bug, http://bugs.webkit.org/show_bug.cgi?id=12250
          // WebKit can't even do simple things like selecting an image
          // Needs to be the setBaseAndExtend or it will fail to select floated images
          if (/^(IMG|HR)$/.test(target.nodeName) && dom.getContentEditableParent(target) !== "false") {
            e.preventDefault();
            editor.selection.select(target);
            editor.nodeChanged();
          }

          if (target.nodeName == 'A' && dom.hasClass(target, 'mce-item-anchor')) {
            e.preventDefault();
            selection.select(target);
          }
        });
      }

      /**
       * Fixes a Gecko bug where the style attribute gets added to the wrong element when deleting between two block elements.
       *
       * Fixes do backspace/delete on this:
       * <p>bla[ck</p><p style="color:red">r]ed</p>
       *
       * Would become:
       * <p>bla|ed</p>
       *
       * Instead of:
       * <p style="color:red">bla|ed</p>
       */
      function removeStylesWhenDeletingAcrossBlockElements() {
        function getAttributeApplyFunction() {
          var template = dom.getAttribs(selection.getStart().cloneNode(false));

          return function () {
            var target = selection.getStart();

            if (target !== editor.getBody()) {
              dom.setAttrib(target, "style", null);

              each(template, function (attr) {
                target.setAttributeNode(attr.cloneNode(true));
              });
            }
          };
        }

        function isSelectionAcrossElements() {
          return !selection.isCollapsed() &&
            dom.getParent(selection.getStart(), dom.isBlock) != dom.getParent(selection.getEnd(), dom.isBlock);
        }

        editor.on('keypress', function (e) {
          var applyAttributes;

          if (!isDefaultPrevented(e) && (e.keyCode == 8 || e.keyCode == 46) && isSelectionAcrossElements()) {
            applyAttributes = getAttributeApplyFunction();
            editor.getDoc().execCommand('delete', false, null);
            applyAttributes();
            e.preventDefault();
            return false;
          }
        });

        dom.bind(editor.getDoc(), 'cut', function (e) {
          var applyAttributes;

          if (!isDefaultPrevented(e) && isSelectionAcrossElements()) {
            applyAttributes = getAttributeApplyFunction();

            Delay.setEditorTimeout(editor, function () {
              applyAttributes();
            });
          }
        });
      }

      /**
       * Screen readers on IE needs to have the role application set on the body.
       */
      function ensureBodyHasRoleApplication() {
        document.body.setAttribute("role", "application");
      }

      /**
       * Backspacing into a table behaves differently depending upon browser type.
       * Therefore, disable Backspace when cursor immediately follows a table.
       */
      function disableBackspaceIntoATable() {
        editor.on('keydown', function (e) {
          if (!isDefaultPrevented(e) && e.keyCode === BACKSPACE) {
            if (selection.isCollapsed() && selection.getRng(true).startOffset === 0) {
              var previousSibling = selection.getNode().previousSibling;
              if (previousSibling && previousSibling.nodeName && previousSibling.nodeName.toLowerCase() === "table") {
                e.preventDefault();
                return false;
              }
            }
          }
        });
      }

      /**
       * Old IE versions can't properly render BR elements in PRE tags white in contentEditable mode. So this
       * logic adds a \n before the BR so that it will get rendered.
       */
      function addNewLinesBeforeBrInPre() {
        // IE8+ rendering mode does the right thing with BR in PRE
        if (getDocumentMode() > 7) {
          return;
        }

        // Enable display: none in area and add a specific class that hides all BR elements in PRE to
        // avoid the caret from getting stuck at the BR elements while pressing the right arrow key
        setEditorCommandState('RespectVisibilityInDesign', true);
        editor.contentStyles.push('.mceHideBrInPre pre br {display: none}');
        dom.addClass(editor.getBody(), 'mceHideBrInPre');

        // Adds a \n before all BR elements in PRE to get them visual
        parser.addNodeFilter('pre', function (nodes) {
          var i = nodes.length, brNodes, j, brElm, sibling;

          while (i--) {
            brNodes = nodes[i].getAll('br');
            j = brNodes.length;
            while (j--) {
              brElm = brNodes[j];

              // Add \n before BR in PRE elements on older IE:s so the new lines get rendered
              sibling = brElm.prev;
              if (sibling && sibling.type === 3 && sibling.value.charAt(sibling.value - 1) != '\n') {
                sibling.value += '\n';
              } else {
                brElm.parent.insert(new Node('#text', 3), brElm, true).value = '\n';
              }
            }
          }
        });

        // Removes any \n before BR elements in PRE since other browsers and in contentEditable=false mode they will be visible
        serializer.addNodeFilter('pre', function (nodes) {
          var i = nodes.length, brNodes, j, brElm, sibling;

          while (i--) {
            brNodes = nodes[i].getAll('br');
            j = brNodes.length;
            while (j--) {
              brElm = brNodes[j];
              sibling = brElm.prev;
              if (sibling && sibling.type == 3) {
                sibling.value = sibling.value.replace(/\r?\n$/, '');
              }
            }
          }
        });
      }

      /**
       * Moves style width/height to attribute width/height when the user resizes an image on IE.
       */
      function removePreSerializedStylesWhenSelectingControls() {
        dom.bind(editor.getBody(), 'mouseup', function () {
          var value, node = selection.getNode();

          // Moved styles to attributes on IMG eements
          if (node.nodeName == 'IMG') {
            // Convert style width to width attribute
            if ((value = dom.getStyle(node, 'width'))) {
              dom.setAttrib(node, 'width', value.replace(/[^0-9%]+/g, ''));
              dom.setStyle(node, 'width', '');
            }

            // Convert style height to height attribute
            if ((value = dom.getStyle(node, 'height'))) {
              dom.setAttrib(node, 'height', value.replace(/[^0-9%]+/g, ''));
              dom.setStyle(node, 'height', '');
            }
          }
        });
      }

      /**
       * Removes a blockquote when backspace is pressed at the beginning of it.
       *
       * For example:
       * <blockquote><p>|x</p></blockquote>
       *
       * Becomes:
       * <p>|x</p>
       */
      function removeBlockQuoteOnBackSpace() {
        // Add block quote deletion handler
        editor.on('keydown', function (e) {
          var rng, container, offset, root, parent;

          if (isDefaultPrevented(e) || e.keyCode != VK.BACKSPACE) {
            return;
          }

          rng = selection.getRng();
          container = rng.startContainer;
          offset = rng.startOffset;
          root = dom.getRoot();
          parent = container;

          if (!rng.collapsed || offset !== 0) {
            return;
          }

          while (parent && parent.parentNode && parent.parentNode.firstChild == parent && parent.parentNode != root) {
            parent = parent.parentNode;
          }

          // Is the cursor at the beginning of a blockquote?
          if (parent.tagName === 'BLOCKQUOTE') {
            // Remove the blockquote
            editor.formatter.toggle('blockquote', null, parent);

            // Move the caret to the beginning of container
            rng = dom.createRng();
            rng.setStart(container, 0);
            rng.setEnd(container, 0);
            selection.setRng(rng);
          }
        });
      }

      /**
       * Sets various Gecko editing options on mouse down and before a execCommand to disable inline table editing that is broken etc.
       */
      function setGeckoEditingOptions() {
        function setOpts() {
          refreshContentEditable();

          setEditorCommandState("StyleWithCSS", false);
          setEditorCommandState("enableInlineTableEditing", false);

          if (!settings.object_resizing) {
            setEditorCommandState("enableObjectResizing", false);
          }
        }

        if (!settings.readonly) {
          editor.on('BeforeExecCommand MouseDown', setOpts);
        }
      }

      /**
       * Fixes a gecko link bug, when a link is placed at the end of block elements there is
       * no way to move the caret behind the link. This fix adds a bogus br element after the link.
       *
       * For example this:
       * <p><b><a href="#">x</a></b></p>
       *
       * Becomes this:
       * <p><b><a href="#">x</a></b><br></p>
       */
      function addBrAfterLastLinks() {
        function fixLinks() {
          each(dom.select('a'), function (node) {
            var parentNode = node.parentNode, root = dom.getRoot();

            if (parentNode.lastChild === node) {
              while (parentNode && !dom.isBlock(parentNode)) {
                if (parentNode.parentNode.lastChild !== parentNode || parentNode === root) {
                  return;
                }

                parentNode = parentNode.parentNode;
              }

              dom.add(parentNode, 'br', { 'data-mce-bogus': 1 });
            }
          });
        }

        editor.on('SetContent ExecCommand', function (e) {
          if (e.type == "setcontent" || e.command === 'mceInsertLink') {
            fixLinks();
          }
        });
      }

      /**
       * WebKit will produce DIV elements here and there by default. But since TinyMCE uses paragraphs by
       * default we want to change that behavior.
       */
      function setDefaultBlockType() {
        if (settings.forced_root_block) {
          editor.on('init', function () {
            setEditorCommandState('DefaultParagraphSeparator', settings.forced_root_block);
          });
        }
      }

      /**
       * Deletes the selected image on IE instead of navigating to previous page.
       */
      function deleteControlItemOnBackSpace() {
        editor.on('keydown', function (e) {
          var rng;

          if (!isDefaultPrevented(e) && e.keyCode == BACKSPACE) {
            rng = editor.getDoc().selection.createRange();
            if (rng && rng.item) {
              e.preventDefault();
              editor.undoManager.beforeChange();
              dom.remove(rng.item(0));
              editor.undoManager.add();
            }
          }
        });
      }

      /**
       * IE10 doesn't properly render block elements with the right height until you add contents to them.
       * This fixes that by adding a padding-right to all empty text block elements.
       * See: https://connect.microsoft.com/IE/feedback/details/743881
       */
      function renderEmptyBlocksFix() {
        var emptyBlocksCSS;

        // IE10+
        if (getDocumentMode() >= 10) {
          emptyBlocksCSS = '';
          each('p div h1 h2 h3 h4 h5 h6'.split(' '), function (name, i) {
            emptyBlocksCSS += (i > 0 ? ',' : '') + name + ':empty';
          });

          editor.contentStyles.push(emptyBlocksCSS + '{padding-right: 1px !important}');
        }
      }

      /**
       * Old IE versions can't retain contents within noscript elements so this logic will store the contents
       * as a attribute and the insert that value as it's raw text when the DOM is serialized.
       */
      function keepNoScriptContents() {
        if (getDocumentMode() < 9) {
          parser.addNodeFilter('noscript', function (nodes) {
            var i = nodes.length, node, textNode;

            while (i--) {
              node = nodes[i];
              textNode = node.firstChild;

              if (textNode) {
                node.attr('data-mce-innertext', textNode.value);
              }
            }
          });

          serializer.addNodeFilter('noscript', function (nodes) {
            var i = nodes.length, node, textNode, value;

            while (i--) {
              node = nodes[i];
              textNode = nodes[i].firstChild;

              if (textNode) {
                textNode.value = Entities.decode(textNode.value);
              } else {
                // Old IE can't retain noscript value so an attribute is used to store it
                value = node.attributes.map['data-mce-innertext'];
                if (value) {
                  node.attr('data-mce-innertext', null);
                  textNode = new Node('#text', 3);
                  textNode.value = value;
                  textNode.raw = true;
                  node.append(textNode);
                }
              }
            }
          });
        }
      }

      /**
       * IE has an issue where you can't select/move the caret by clicking outside the body if the document is in standards mode.
       */
      function fixCaretSelectionOfDocumentElementOnIe() {
        var doc = dom.doc, body = doc.body, started, startRng, htmlElm;

        // Return range from point or null if it failed
        function rngFromPoint(x, y) {
          var rng = body.createTextRange();

          try {
            rng.moveToPoint(x, y);
          } catch (ex) {
            // IE sometimes throws and exception, so lets just ignore it
            rng = null;
          }

          return rng;
        }

        // Fires while the selection is changing
        function selectionChange(e) {
          var pointRng;

          // Check if the button is down or not
          if (e.button) {
            // Create range from mouse position
            pointRng = rngFromPoint(e.x, e.y);

            if (pointRng) {
              // Check if pointRange is before/after selection then change the endPoint
              if (pointRng.compareEndPoints('StartToStart', startRng) > 0) {
                pointRng.setEndPoint('StartToStart', startRng);
              } else {
                pointRng.setEndPoint('EndToEnd', startRng);
              }

              pointRng.select();
            }
          } else {
            endSelection();
          }
        }

        // Removes listeners
        function endSelection() {
          var rng = doc.selection.createRange();

          // If the range is collapsed then use the last start range
          if (startRng && !rng.item && rng.compareEndPoints('StartToEnd', rng) === 0) {
            startRng.select();
          }

          dom.unbind(doc, 'mouseup', endSelection);
          dom.unbind(doc, 'mousemove', selectionChange);
          startRng = started = 0;
        }

        // Make HTML element unselectable since we are going to handle selection by hand
        doc.documentElement.unselectable = true;

        // Detect when user selects outside BODY
        dom.bind(doc, 'mousedown contextmenu', function (e) {
          if (e.target.nodeName === 'HTML') {
            if (started) {
              endSelection();
            }

            // Detect vertical scrollbar, since IE will fire a mousedown on the scrollbar and have target set as HTML
            htmlElm = doc.documentElement;
            if (htmlElm.scrollHeight > htmlElm.clientHeight) {
              return;
            }

            started = 1;
            // Setup start position
            startRng = rngFromPoint(e.x, e.y);
            if (startRng) {
              // Listen for selection change events
              dom.bind(doc, 'mouseup', endSelection);
              dom.bind(doc, 'mousemove', selectionChange);

              dom.getRoot().focus();
              startRng.select();
            }
          }
        });
      }

      /**
       * Fixes selection issues where the caret can be placed between two inline elements like <b>a</b>|<b>b</b>
       * this fix will lean the caret right into the closest inline element.
       */
      function normalizeSelection() {
        // Normalize selection for example <b>a</b><i>|a</i> becomes <b>a|</b><i>a</i> except for Ctrl+A since it selects everything
        editor.on('keyup focusin mouseup', function (e) {
          if (e.keyCode != 65 || !VK.metaKeyPressed(e)) {
            selection.normalize();
          }
        }, true);
      }

      /**
       * Forces Gecko to render a broken image icon if it fails to load an image.
       */
      function showBrokenImageIcon() {
        editor.contentStyles.push(
          'img:-moz-broken {' +
          '-moz-force-broken-image-icon:1;' +
          'min-width:24px;' +
          'min-height:24px' +
          '}'
        );
      }

      /**
       * iOS has a bug where it's impossible to type if the document has a touchstart event
       * bound and the user touches the document while having the on screen keyboard visible.
       *
       * The touch event moves the focus to the parent document while having the caret inside the iframe
       * this fix moves the focus back into the iframe document.
       */
      function restoreFocusOnKeyDown() {
        if (!editor.inline) {
          editor.on('keydown', function () {
            if (document.activeElement == document.body) {
              editor.getWin().focus();
            }
          });
        }
      }

      /**
       * IE 11 has an annoying issue where you can't move focus into the editor
       * by clicking on the white area HTML element. We used to be able to to fix this with
       * the fixCaretSelectionOfDocumentElementOnIe fix. But since M$ removed the selection
       * object it's not possible anymore. So we need to hack in a ungly CSS to force the
       * body to be at least 150px. If the user clicks the HTML element out side this 150px region
       * we simply move the focus into the first paragraph. Not ideal since you loose the
       * positioning of the caret but goot enough for most cases.
       */
      function bodyHeight() {
        if (!editor.inline) {
          editor.contentStyles.push('body {min-height: 150px}');
          editor.on('click', function (e) {
            var rng;

            if (e.target.nodeName == 'HTML') {
              // Edge seems to only need focus if we set the range
              // the caret will become invisible and moved out of the iframe!!
              if (Env.ie > 11) {
                editor.getBody().focus();
                return;
              }

              // Need to store away non collapsed ranges since the focus call will mess that up see #7382
              rng = editor.selection.getRng();
              editor.getBody().focus();
              editor.selection.setRng(rng);
              editor.selection.normalize();
              editor.nodeChanged();
            }
          });
        }
      }

      /**
       * Firefox on Mac OS will move the browser back to the previous page if you press CMD+Left arrow.
       * You might then loose all your work so we need to block that behavior and replace it with our own.
       */
      function blockCmdArrowNavigation() {
        if (Env.mac) {
          editor.on('keydown', function (e) {
            if (VK.metaKeyPressed(e) && !e.shiftKey && (e.keyCode == 37 || e.keyCode == 39)) {
              e.preventDefault();
              editor.selection.getSel().modify('move', e.keyCode == 37 ? 'backward' : 'forward', 'lineboundary');
            }
          });
        }
      }

      /**
       * Disables the autolinking in IE 9+ this is then re-enabled by the autolink plugin.
       */
      function disableAutoUrlDetect() {
        setEditorCommandState("AutoUrlDetect", false);
      }

      /**
       * iOS 7.1 introduced two new bugs:
       * 1) It's possible to open links within a contentEditable area by clicking on them.
       * 2) If you hold down the finger it will display the link/image touch callout menu.
       */
      function tapLinksAndImages() {
        editor.on('click', function (e) {
          var elm = e.target;

          do {
            if (elm.tagName === 'A') {
              e.preventDefault();
              return;
            }
          } while ((elm = elm.parentNode));
        });

        editor.contentStyles.push('.mce-content-body {-webkit-touch-callout: none}');
      }

      /**
       * iOS Safari and possible other browsers have a bug where it won't fire
       * a click event when a contentEditable is focused. This function fakes click events
       * by using touchstart/touchend and measuring the time and distance travelled.
       */
      /*
      function touchClickEvent() {
        editor.on('touchstart', function(e) {
          var elm, time, startTouch, changedTouches;

          elm = e.target;
          time = new Date().getTime();
          changedTouches = e.changedTouches;

          if (!changedTouches || changedTouches.length > 1) {
            return;
          }

          startTouch = changedTouches[0];

          editor.once('touchend', function(e) {
            var endTouch = e.changedTouches[0], args;

            if (new Date().getTime() - time > 500) {
              return;
            }

            if (Math.abs(startTouch.clientX - endTouch.clientX) > 5) {
              return;
            }

            if (Math.abs(startTouch.clientY - endTouch.clientY) > 5) {
              return;
            }

            args = {
              target: elm
            };

            each('pageX pageY clientX clientY screenX screenY'.split(' '), function(key) {
              args[key] = endTouch[key];
            });

            args = editor.fire('click', args);

            if (!args.isDefaultPrevented()) {
              // iOS WebKit can't place the caret properly once
              // you bind touch events so we need to do this manually
              // TODO: Expand to the closest word? Touble tap still works.
              editor.selection.placeCaretAt(endTouch.clientX, endTouch.clientY);
              editor.nodeChanged();
            }
          });
        });
      }
      */

      /**
       * WebKit has a bug where it will allow forms to be submitted if they are inside a contentEditable element.
       * For example this: <form><button></form>
       */
      function blockFormSubmitInsideEditor() {
        editor.on('init', function () {
          editor.dom.bind(editor.getBody(), 'submit', function (e) {
            e.preventDefault();
          });
        });
      }

      /**
       * Sometimes WebKit/Blink generates BR elements with the Apple-interchange-newline class.
       *
       * Scenario:
       *  1) Create a table 2x2.
       *  2) Select and copy cells A2-B2.
       *  3) Paste and it will add BR element to table cell.
       */
      function removeAppleInterchangeBrs() {
        parser.addNodeFilter('br', function (nodes) {
          var i = nodes.length;

          while (i--) {
            if (nodes[i].attr('class') == 'Apple-interchange-newline') {
              nodes[i].remove();
            }
          }
        });
      }

      /**
       * IE cannot set custom contentType's on drag events, and also does not properly drag/drop between
       * editors. This uses a special data:text/mce-internal URL to pass data when drag/drop between editors.
       */
      function ieInternalDragAndDrop() {
        editor.on('dragstart', function (e) {
          setMceInternalContent(e);
        });

        editor.on('drop', function (e) {
          if (!isDefaultPrevented(e)) {
            var internalContent = getMceInternalContent(e);

            if (internalContent && internalContent.id != editor.id) {
              e.preventDefault();

              var rng = RangeUtils.getCaretRangeFromPoint(e.x, e.y, editor.getDoc());
              selection.setRng(rng);
              insertClipboardContents(internalContent.html, true);
            }
          }
        });
      }

      function refreshContentEditable() {
        // No-op since Mozilla seems to have fixed the caret repaint issues
      }

      function isHidden() {
        var sel;

        if (!isGecko || editor.removed) {
          return 0;
        }

        // Weird, wheres that cursor selection?
        sel = editor.selection.getSel();
        return (!sel || !sel.rangeCount || sel.rangeCount === 0);
      }

      /**
       * Properly empties the editor if all contents is selected and deleted this to
       * prevent empty paragraphs from being produced at beginning/end of contents.
       */
      function emptyEditorOnDeleteEverything() {
        function isEverythingSelected(editor) {
          var caretWalker = new CaretWalker(editor.getBody());
          var rng = editor.selection.getRng();
          var startCaretPos = CaretPosition.fromRangeStart(rng);
          var endCaretPos = CaretPosition.fromRangeEnd(rng);
          var prev = caretWalker.prev(startCaretPos);
          var next = caretWalker.next(endCaretPos);

          return !editor.selection.isCollapsed() &&
            (!prev || (prev.isAtStart() && startCaretPos.isEqual(prev))) &&
            (!next || (next.isAtEnd() && startCaretPos.isEqual(next)));
        }

        // Type over case delete and insert this won't cover typeover with a IME but at least it covers the common case
        editor.on('keypress', function (e) {
          if (!isDefaultPrevented(e) && !selection.isCollapsed() && e.charCode > 31 && !VK.metaKeyPressed(e)) {
            if (isEverythingSelected(editor)) {
              e.preventDefault();
              editor.setContent(String.fromCharCode(e.charCode));
              editor.selection.select(editor.getBody(), true);
              editor.selection.collapse(false);
              editor.nodeChanged();
            }
          }
        });

        editor.on('keydown', function (e) {
          var keyCode = e.keyCode;

          if (!isDefaultPrevented(e) && (keyCode == DELETE || keyCode == BACKSPACE)) {
            if (isEverythingSelected(editor)) {
              e.preventDefault();
              editor.setContent('');
              editor.nodeChanged();
            }
          }
        });
      }

      // All browsers
      removeBlockQuoteOnBackSpace();
      emptyEditorWhenDeleting();

      // Windows phone will return a range like [body, 0] on mousedown so
      // it will always normalize to the wrong location
      if (!Env.windowsPhone) {
        normalizeSelection();
      }

      // WebKit
      if (isWebKit) {
        emptyEditorOnDeleteEverything();
        inputMethodFocus();
        selectControlElements();
        setDefaultBlockType();
        blockFormSubmitInsideEditor();
        disableBackspaceIntoATable();
        removeAppleInterchangeBrs();

        //touchClickEvent();

        // iOS
        if (Env.iOS) {
          restoreFocusOnKeyDown();
          bodyHeight();
          tapLinksAndImages();
        } else {
          selectAll();
        }
      }

      // IE
      if (isIE && Env.ie < 11) {
        removeHrOnBackspace();
        ensureBodyHasRoleApplication();
        addNewLinesBeforeBrInPre();
        removePreSerializedStylesWhenSelectingControls();
        deleteControlItemOnBackSpace();
        renderEmptyBlocksFix();
        keepNoScriptContents();
        fixCaretSelectionOfDocumentElementOnIe();
      }

      if (Env.ie >= 11) {
        bodyHeight();
        disableBackspaceIntoATable();
      }

      if (Env.ie) {
        selectAll();
        disableAutoUrlDetect();
        ieInternalDragAndDrop();
      }

      // Gecko
      if (isGecko) {
        emptyEditorOnDeleteEverything();
        removeHrOnBackspace();
        focusBody();
        removeStylesWhenDeletingAcrossBlockElements();
        setGeckoEditingOptions();
        addBrAfterLastLinks();
        showBrokenImageIcon();
        blockCmdArrowNavigation();
        disableBackspaceIntoATable();
      }

      return {
        refreshContentEditable: refreshContentEditable,
        isHidden: isHidden
      };
    };
  }
);

/**
 * InitContentBody.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.init.InitContentBody',
  [
    'global!document',
    'global!window',
    'tinymce.core.caret.CaretContainerInput',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.dom.Selection',
    'tinymce.core.dom.Serializer',
    'tinymce.core.EditorUpload',
    'tinymce.core.ErrorReporter',
    'tinymce.core.ForceBlocks',
    'tinymce.core.Formatter',
    'tinymce.core.html.DomParser',
    'tinymce.core.html.Node',
    'tinymce.core.html.Schema',
    'tinymce.core.keyboard.KeyboardOverrides',
    'tinymce.core.NodeChange',
    'tinymce.core.SelectionOverrides',
    'tinymce.core.UndoManager',
    'tinymce.core.util.Delay',
    'tinymce.core.util.Quirks',
    'tinymce.core.util.Tools'
  ],
  function (
    document, window, CaretContainerInput, DOMUtils, Selection, Serializer, EditorUpload, ErrorReporter, ForceBlocks, Formatter, DomParser, Node, Schema, KeyboardOverrides,
    NodeChange, SelectionOverrides, UndoManager, Delay, Quirks, Tools
  ) {
    var DOM = DOMUtils.DOM;

    var createParser = function (editor) {
      var parser = new DomParser(editor.settings, editor.schema);

      // Convert src and href into data-mce-src, data-mce-href and data-mce-style
      parser.addAttributeFilter('src,href,style,tabindex', function (nodes, name) {
        var i = nodes.length, node, dom = editor.dom, value, internalName;

        while (i--) {
          node = nodes[i];
          value = node.attr(name);
          internalName = 'data-mce-' + name;

          // Add internal attribute if we need to we don't on a refresh of the document
          if (!node.attributes.map[internalName]) {
            // Don't duplicate these since they won't get modified by any browser
            if (value.indexOf('data:') === 0 || value.indexOf('blob:') === 0) {
              continue;
            }

            if (name === "style") {
              value = dom.serializeStyle(dom.parseStyle(value), node.name);

              if (!value.length) {
                value = null;
              }

              node.attr(internalName, value);
              node.attr(name, value);
            } else if (name === "tabindex") {
              node.attr(internalName, value);
              node.attr(name, null);
            } else {
              node.attr(internalName, editor.convertURL(value, name, node.name));
            }
          }
        }
      });

      // Keep scripts from executing
      parser.addNodeFilter('script', function (nodes) {
        var i = nodes.length, node, type;

        while (i--) {
          node = nodes[i];
          type = node.attr('type') || 'no/type';
          if (type.indexOf('mce-') !== 0) {
            node.attr('type', 'mce-' + type);
          }
        }
      });

      parser.addNodeFilter('#cdata', function (nodes) {
        var i = nodes.length, node;

        while (i--) {
          node = nodes[i];
          node.type = 8;
          node.name = '#comment';
          node.value = '[CDATA[' + node.value + ']]';
        }
      });

      parser.addNodeFilter('p,h1,h2,h3,h4,h5,h6,div', function (nodes) {
        var i = nodes.length, node, nonEmptyElements = editor.schema.getNonEmptyElements();

        while (i--) {
          node = nodes[i];

          if (node.isEmpty(nonEmptyElements) && node.getAll('br').length === 0) {
            node.append(new Node('br', 1)).shortEnded = true;
          }
        }
      });

      return parser;
    };

    var autoFocus = function (editor) {
      if (editor.settings.auto_focus) {
        Delay.setEditorTimeout(editor, function () {
          var focusEditor;

          if (editor.settings.auto_focus === true) {
            focusEditor = editor;
          } else {
            focusEditor = editor.editorManager.get(editor.settings.auto_focus);
          }

          if (!focusEditor.destroyed) {
            focusEditor.focus();
          }
        }, 100);
      }
    };

    var initEditor = function (editor) {
      editor.bindPendingEventDelegates();
      editor.initialized = true;
      editor.fire('init');
      editor.focus(true);
      editor.nodeChanged({ initial: true });
      editor.execCallback('init_instance_callback', editor);
      autoFocus(editor);
    };

    var initContentBody = function (editor, skipWrite) {
      var settings = editor.settings, targetElm = editor.getElement(), doc = editor.getDoc(), body, contentCssText;

      // Restore visibility on target element
      if (!settings.inline) {
        editor.getElement().style.visibility = editor.orgVisibility;
      }

      // Setup iframe body
      if (!skipWrite && !settings.content_editable) {
        doc.open();
        doc.write(editor.iframeHTML);
        doc.close();
      }

      if (settings.content_editable) {
        editor.on('remove', function () {
          var bodyEl = this.getBody();

          DOM.removeClass(bodyEl, 'mce-content-body');
          DOM.removeClass(bodyEl, 'mce-edit-focus');
          DOM.setAttrib(bodyEl, 'contentEditable', null);
        });

        DOM.addClass(targetElm, 'mce-content-body');
        editor.contentDocument = doc = settings.content_document || document;
        editor.contentWindow = settings.content_window || window;
        editor.bodyElement = targetElm;

        // Prevent leak in IE
        settings.content_document = settings.content_window = null;

        // TODO: Fix this
        settings.root_name = targetElm.nodeName.toLowerCase();
      }

      // It will not steal focus while setting contentEditable
      body = editor.getBody();
      body.disabled = true;
      editor.readonly = settings.readonly;

      if (!editor.readonly) {
        if (editor.inline && DOM.getStyle(body, 'position', true) === 'static') {
          body.style.position = 'relative';
        }

        body.contentEditable = editor.getParam('content_editable_state', true);
      }

      body.disabled = false;

      editor.editorUpload = new EditorUpload(editor);
      editor.schema = new Schema(settings);
      editor.dom = new DOMUtils(doc, {
        keep_values: true,
        url_converter: editor.convertURL,
        url_converter_scope: editor,
        hex_colors: settings.force_hex_style_colors,
        class_filter: settings.class_filter,
        update_styles: true,
        root_element: editor.inline ? editor.getBody() : null,
        collect: settings.content_editable,
        schema: editor.schema,
        onSetAttrib: function (e) {
          editor.fire('SetAttrib', e);
        }
      });

      editor.parser = createParser(editor);
      editor.serializer = new Serializer(settings, editor);
      editor.selection = new Selection(editor.dom, editor.getWin(), editor.serializer, editor);
      editor.formatter = new Formatter(editor);
      editor.undoManager = new UndoManager(editor);
      editor._nodeChangeDispatcher = new NodeChange(editor);
      editor._selectionOverrides = new SelectionOverrides(editor);

      CaretContainerInput.setup(editor);
      KeyboardOverrides.setup(editor);
      ForceBlocks.setup(editor);

      editor.fire('PreInit');

      if (!settings.browser_spellcheck && !settings.gecko_spellcheck) {
        doc.body.spellcheck = false; // Gecko
        DOM.setAttrib(body, "spellcheck", "false");
      }

      editor.quirks = new Quirks(editor);
      editor.fire('PostRender');

      if (settings.directionality) {
        body.dir = settings.directionality;
      }

      if (settings.nowrap) {
        body.style.whiteSpace = "nowrap";
      }

      if (settings.protect) {
        editor.on('BeforeSetContent', function (e) {
          Tools.each(settings.protect, function (pattern) {
            e.content = e.content.replace(pattern, function (str) {
              return '<!--mce:protected ' + escape(str) + '-->';
            });
          });
        });
      }

      editor.on('SetContent', function () {
        editor.addVisual(editor.getBody());
      });

      // Remove empty contents
      if (settings.padd_empty_editor) {
        editor.on('PostProcess', function (e) {
          e.content = e.content.replace(/^(<p[^>]*>(&nbsp;|&#160;|\s|\u00a0|<br \/>|)<\/p>[\r\n]*|<br \/>[\r\n]*)$/, '');
        });
      }

      editor.load({ initial: true, format: 'html' });
      editor.startContent = editor.getContent({ format: 'raw' });

      editor.on('compositionstart compositionend', function (e) {
        editor.composing = e.type === 'compositionstart';
      });

      // Add editor specific CSS styles
      if (editor.contentStyles.length > 0) {
        contentCssText = '';

        Tools.each(editor.contentStyles, function (style) {
          contentCssText += style + "\r\n";
        });

        editor.dom.addStyle(contentCssText);
      }

      editor.dom.styleSheetLoader.loadAll(
        editor.contentCSS,
        function (_) {
          initEditor(editor);
        },
        function (urls) {
          initEditor(editor);
          ErrorReporter.contentCssError(editor, urls);
        }
      );
    };

    return {
      initContentBody: initContentBody
    };
  }
);

/**
 * PluginManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.PluginManager',
  [
    'tinymce.core.AddOnManager'
  ],
  function (AddOnManager) {
    return AddOnManager.PluginManager;
  }
);

/**
 * ThemeManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.ThemeManager',
  [
    'tinymce.core.AddOnManager'
  ],
  function (AddOnManager) {
    return AddOnManager.ThemeManager;
  }
);

/**
 * Init.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.init.Init',
  [
    'global!document',
    'global!window',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.Env',
    'tinymce.core.init.InitContentBody',
    'tinymce.core.PluginManager',
    'tinymce.core.ThemeManager',
    'tinymce.core.util.Tools',
    'tinymce.core.util.Uuid'
  ],
  function (document, window, DOMUtils, Env, InitContentBody, PluginManager, ThemeManager, Tools, Uuid) {
    var DOM = DOMUtils.DOM;

    var initPlugin = function (editor, initializedPlugins, plugin) {
      var Plugin = PluginManager.get(plugin), pluginUrl, pluginInstance;

      pluginUrl = PluginManager.urls[plugin] || editor.documentBaseUrl.replace(/\/$/, '');
      plugin = Tools.trim(plugin);
      if (Plugin && Tools.inArray(initializedPlugins, plugin) === -1) {
        Tools.each(PluginManager.dependencies(plugin), function (dep) {
          initPlugin(editor, initializedPlugins, dep);
        });

        if (editor.plugins[plugin]) {
          return;
        }

        pluginInstance = new Plugin(editor, pluginUrl, editor.$);

        editor.plugins[plugin] = pluginInstance;

        if (pluginInstance.init) {
          pluginInstance.init(editor, pluginUrl);
          initializedPlugins.push(plugin);
        }
      }
    };

    var initPlugins = function (editor) {
      var initializedPlugins = [];

      Tools.each(editor.settings.plugins.replace(/\-/g, '').split(/[ ,]/), function (name) {
        initPlugin(editor, initializedPlugins, name);
      });
    };

    var initTheme = function (editor) {
      var Theme, settings = editor.settings;

      if (settings.theme) {
        if (typeof settings.theme != "function") {
          settings.theme = settings.theme.replace(/-/, '');
          Theme = ThemeManager.get(settings.theme);
          editor.theme = new Theme(editor, ThemeManager.urls[settings.theme]);

          if (editor.theme.init) {
            editor.theme.init(editor, ThemeManager.urls[settings.theme] || editor.documentBaseUrl.replace(/\/$/, ''), editor.$);
          }
        } else {
          editor.theme = settings.theme;
        }
      }
    };

    var measueBox = function (editor) {
      var w, h, minHeight, re, o, settings = editor.settings, elm = editor.getElement();

      // Measure box
      if (settings.render_ui && editor.theme) {
        editor.orgDisplay = elm.style.display;

        if (typeof settings.theme != "function") {
          w = settings.width || DOM.getStyle(elm, 'width') || '100%';
          h = settings.height || DOM.getStyle(elm, 'height') || elm.offsetHeight;
          minHeight = settings.min_height || 100;
          re = /^[0-9\.]+(|px)$/i;

          if (re.test('' + w)) {
            w = Math.max(parseInt(w, 10), 100);
          }

          if (re.test('' + h)) {
            h = Math.max(parseInt(h, 10), minHeight);
          }

          // Render UI
          o = editor.theme.renderUI({
            targetNode: elm,
            width: w,
            height: h,
            deltaWidth: settings.delta_width,
            deltaHeight: settings.delta_height
          });

          // Resize editor
          if (!settings.content_editable) {
            h = (o.iframeHeight || h) + (typeof h === 'number' ? (o.deltaHeight || 0) : '');
            if (h < minHeight) {
              h = minHeight;
            }
          }
        } else {
          o = settings.theme(editor, elm);

          if (o.editorContainer.nodeType) {
            o.editorContainer.id = o.editorContainer.id || editor.id + "_parent";
          }

          if (o.iframeContainer.nodeType) {
            o.iframeContainer.id = o.iframeContainer.id || editor.id + "_iframecontainer";
          }

          // Use specified iframe height or the targets offsetHeight
          h = o.iframeHeight || elm.offsetHeight;
        }

        editor.editorContainer = o.editorContainer;
        o.height = h;
      }

      return o;
    };

    var relaxDomain = function (editor, ifr) {
      // Domain relaxing is required since the user has messed around with document.domain
      // This only applies to IE 11 other browsers including Edge seems to handle document.domain
      if (document.domain !== window.location.hostname && Env.ie && Env.ie < 12) {
        var bodyUuid = Uuid.uuid('mce');

        editor[bodyUuid] = function () {
          InitContentBody.initContentBody(editor);
        };

        /*eslint no-script-url:0 */
        var domainRelaxUrl = 'javascript:(function(){' +
          'document.open();document.domain="' + document.domain + '";' +
          'var ed = window.parent.tinymce.get("' + editor.id + '");document.write(ed.iframeHTML);' +
          'document.close();ed.' + bodyUuid + '(true);})()';

        DOM.setAttrib(ifr, 'src', domainRelaxUrl);
        return true;
      }

      return false;
    };

    var createIframe = function (editor, o) {
      var settings = editor.settings, bodyId, bodyClass;

      editor.iframeHTML = settings.doctype + '<html><head>';

      // We only need to override paths if we have to
      // IE has a bug where it remove site absolute urls to relative ones if this is specified
      if (settings.document_base_url != editor.documentBaseUrl) {
        editor.iframeHTML += '<base href="' + editor.documentBaseURI.getURI() + '" />';
      }

      // IE8 doesn't support carets behind images setting ie7_compat would force IE8+ to run in IE7 compat mode.
      if (!Env.caretAfter && settings.ie7_compat) {
        editor.iframeHTML += '<meta http-equiv="X-UA-Compatible" content="IE=7" />';
      }

      editor.iframeHTML += '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />';

      bodyId = settings.body_id || 'tinymce';
      if (bodyId.indexOf('=') != -1) {
        bodyId = editor.getParam('body_id', '', 'hash');
        bodyId = bodyId[editor.id] || bodyId;
      }

      bodyClass = settings.body_class || '';
      if (bodyClass.indexOf('=') != -1) {
        bodyClass = editor.getParam('body_class', '', 'hash');
        bodyClass = bodyClass[editor.id] || '';
      }

      if (settings.content_security_policy) {
        editor.iframeHTML += '<meta http-equiv="Content-Security-Policy" content="' + settings.content_security_policy + '" />';
      }

      editor.iframeHTML += '</head><body id="' + bodyId +
        '" class="mce-content-body ' + bodyClass +
        '" data-id="' + editor.id + '"><br></body></html>';

      // Create iframe
      // TODO: ACC add the appropriate description on this.
      var ifr = DOM.create('iframe', {
        id: editor.id + "_ifr",
        frameBorder: '0',
        allowTransparency: "true",
        title: editor.editorManager.translate(
          "Rich Text Area. Press ALT-F9 for menu. " +
          "Press ALT-F10 for toolbar. Press ALT-0 for help"
        ),
        style: {
          width: '100%',
          height: o.height,
          display: 'block' // Important for Gecko to render the iframe correctly
        }
      });

      ifr.onload = function () {
        ifr.onload = null;
        editor.fire("load");
      };

      var isDomainRelaxed = relaxDomain(editor, ifr);

      editor.contentAreaContainer = o.iframeContainer;
      editor.iframeElement = ifr;

      DOM.add(o.iframeContainer, ifr);

      return isDomainRelaxed;
    };

    var init = function (editor) {
      var settings = editor.settings, elm = editor.getElement(), boxInfo;

      editor.rtl = settings.rtl_ui || editor.editorManager.i18n.rtl;
      editor.editorManager.i18n.setCode(settings.language);
      settings.aria_label = settings.aria_label || DOM.getAttrib(elm, 'aria-label', editor.getLang('aria.rich_text_area'));

      editor.fire('ScriptsLoaded');

      initTheme(editor);
      initPlugins(editor);
      boxInfo = measueBox(editor);

      // Load specified content CSS last
      if (settings.content_css) {
        Tools.each(Tools.explode(settings.content_css), function (u) {
          editor.contentCSS.push(editor.documentBaseURI.toAbsolute(u));
        });
      }

      // Load specified content CSS last
      if (settings.content_style) {
        editor.contentStyles.push(settings.content_style);
      }

      // Content editable mode ends here
      if (settings.content_editable) {
        return InitContentBody.initContentBody(editor);
      }

      var isDomainRelaxed = createIframe(editor, boxInfo);

      if (boxInfo.editorContainer) {
        DOM.get(boxInfo.editorContainer).style.display = editor.orgDisplay;
        editor.hidden = DOM.isHidden(boxInfo.editorContainer);
      }

      editor.getElement().style.display = 'none';
      DOM.setAttrib(editor.id, 'aria-hidden', true);

      if (!isDomainRelaxed) {
        InitContentBody.initContentBody(editor);
      }
    };

    return {
      init: init
    };
  }
);

/**
 * Render.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.init.Render',
  [
    'global!window',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.dom.EventUtils',
    'tinymce.core.dom.ScriptLoader',
    'tinymce.core.Env',
    'tinymce.core.ErrorReporter',
    'tinymce.core.init.Init',
    'tinymce.core.NotificationManager',
    'tinymce.core.PluginManager',
    'tinymce.core.ThemeManager',
    'tinymce.core.util.Tools',
    'tinymce.core.WindowManager'
  ],
  function (window, DOMUtils, EventUtils, ScriptLoader, Env, ErrorReporter, Init, NotificationManager, PluginManager, ThemeManager, Tools, WindowManager) {
    var DOM = DOMUtils.DOM;

    var loadScripts = function (editor, suffix) {
      var settings = editor.settings, scriptLoader = ScriptLoader.ScriptLoader;

      if (settings.language && settings.language != 'en' && !settings.language_url) {
        settings.language_url = editor.editorManager.baseURL + '/langs/' + settings.language + '.js';
      }

      if (settings.language_url) {
        scriptLoader.add(settings.language_url);
      }

      if (settings.theme && typeof settings.theme != "function" &&
        settings.theme.charAt(0) != '-' && !ThemeManager.urls[settings.theme]) {
        var themeUrl = settings.theme_url;

        if (themeUrl) {
          themeUrl = editor.documentBaseURI.toAbsolute(themeUrl);
        } else {
          themeUrl = 'themes/' + settings.theme + '/theme' + suffix + '.js';
        }

        ThemeManager.load(settings.theme, themeUrl);
      }

      if (Tools.isArray(settings.plugins)) {
        settings.plugins = settings.plugins.join(' ');
      }

      Tools.each(settings.external_plugins, function (url, name) {
        PluginManager.load(name, url);
        settings.plugins += ' ' + name;
      });

      Tools.each(settings.plugins.split(/[ ,]/), function (plugin) {
        plugin = Tools.trim(plugin);

        if (plugin && !PluginManager.urls[plugin]) {
          if (plugin.charAt(0) === '-') {
            plugin = plugin.substr(1, plugin.length);

            var dependencies = PluginManager.dependencies(plugin);

            Tools.each(dependencies, function (dep) {
              var defaultSettings = {
                prefix: 'plugins/',
                resource: dep,
                suffix: '/plugin' + suffix + '.js'
              };

              dep = PluginManager.createUrl(defaultSettings, dep);
              PluginManager.load(dep.resource, dep);
            });
          } else {
            PluginManager.load(plugin, {
              prefix: 'plugins/',
              resource: plugin,
              suffix: '/plugin' + suffix + '.js'
            });
          }
        }
      });

      scriptLoader.loadQueue(function () {
        if (!editor.removed) {
          Init.init(editor);
        }
      }, editor, function (urls) {
        ErrorReporter.pluginLoadError(editor, urls[0]);

        if (!editor.removed) {
          Init.init(editor);
        }
      });
    };

    var render = function (editor) {
      var settings = editor.settings, id = editor.id;

      function readyHandler() {
        DOM.unbind(window, 'ready', readyHandler);
        editor.render();
      }

      // Page is not loaded yet, wait for it
      if (!EventUtils.Event.domLoaded) {
        DOM.bind(window, 'ready', readyHandler);
        return;
      }

      // Element not found, then skip initialization
      if (!editor.getElement()) {
        return;
      }

      // No editable support old iOS versions etc
      if (!Env.contentEditable) {
        return;
      }

      // Hide target element early to prevent content flashing
      if (!settings.inline) {
        editor.orgVisibility = editor.getElement().style.visibility;
        editor.getElement().style.visibility = 'hidden';
      } else {
        editor.inline = true;
      }

      var form = editor.getElement().form || DOM.getParent(id, 'form');
      if (form) {
        editor.formElement = form;

        // Add hidden input for non input elements inside form elements
        if (settings.hidden_input && !/TEXTAREA|INPUT/i.test(editor.getElement().nodeName)) {
          DOM.insertAfter(DOM.create('input', { type: 'hidden', name: id }), id);
          editor.hasHiddenInput = true;
        }

        // Pass submit/reset from form to editor instance
        editor.formEventDelegate = function (e) {
          editor.fire(e.type, e);
        };

        DOM.bind(form, 'submit reset', editor.formEventDelegate);

        // Reset contents in editor when the form is reset
        editor.on('reset', function () {
          editor.setContent(editor.startContent, { format: 'raw' });
        });

        // Check page uses id="submit" or name="submit" for it's submit button
        if (settings.submit_patch && !form.submit.nodeType && !form.submit.length && !form._mceOldSubmit) {
          form._mceOldSubmit = form.submit;
          form.submit = function () {
            editor.editorManager.triggerSave();
            editor.setDirty(false);

            return form._mceOldSubmit(form);
          };
        }
      }

      editor.windowManager = new WindowManager(editor);
      editor.notificationManager = new NotificationManager(editor);

      if (settings.encoding === 'xml') {
        editor.on('GetContent', function (e) {
          if (e.save) {
            e.content = DOM.encode(e.content);
          }
        });
      }

      if (settings.add_form_submit_trigger) {
        editor.on('submit', function () {
          if (editor.initialized) {
            editor.save();
          }
        });
      }

      if (settings.add_unload_trigger) {
        editor._beforeUnload = function () {
          if (editor.initialized && !editor.destroyed && !editor.isHidden()) {
            editor.save({ format: 'raw', no_events: true, set_dirty: false });
          }
        };

        editor.editorManager.on('BeforeUnload', editor._beforeUnload);
      }

      editor.editorManager.add(editor);
      loadScripts(editor, editor.suffix);
    };

    return {
      render: render
    };
  }
);

/**
 * Mode.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Mode switcher logic.
 *
 * @private
 * @class tinymce.Mode
 */
define(
  'tinymce.core.Mode',
  [
  ],
  function () {
    function setEditorCommandState(editor, cmd, state) {
      try {
        editor.getDoc().execCommand(cmd, false, state);
      } catch (ex) {
        // Ignore
      }
    }

    function clickBlocker(editor) {
      var target, handler;

      target = editor.getBody();

      handler = function (e) {
        if (editor.dom.getParents(e.target, 'a').length > 0) {
          e.preventDefault();
        }
      };

      editor.dom.bind(target, 'click', handler);

      return {
        unbind: function () {
          editor.dom.unbind(target, 'click', handler);
        }
      };
    }

    function toggleReadOnly(editor, state) {
      if (editor._clickBlocker) {
        editor._clickBlocker.unbind();
        editor._clickBlocker = null;
      }

      if (state) {
        editor._clickBlocker = clickBlocker(editor);
        editor.selection.controlSelection.hideResizeRect();
        editor.readonly = true;
        editor.getBody().contentEditable = false;
      } else {
        editor.readonly = false;
        editor.getBody().contentEditable = true;
        setEditorCommandState(editor, "StyleWithCSS", false);
        setEditorCommandState(editor, "enableInlineTableEditing", false);
        setEditorCommandState(editor, "enableObjectResizing", false);
        editor.focus();
        editor.nodeChanged();
      }
    }

    function setMode(editor, mode) {
      var currentMode = editor.readonly ? 'readonly' : 'design';

      if (mode == currentMode) {
        return;
      }

      if (editor.initialized) {
        toggleReadOnly(editor, mode == 'readonly');
      } else {
        editor.on('init', function () {
          toggleReadOnly(editor, mode == 'readonly');
        });
      }

      // Event is NOT preventable
      editor.fire('SwitchMode', { mode: mode });
    }

    return {
      setMode: setMode
    };
  }
);
/**
 * Sidebar.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module handle sidebar instances for the editor.
 *
 * @class tinymce.ui.Sidebar
 * @private
 */
define(
  'tinymce.core.ui.Sidebar',
  [
  ],
  function (
  ) {
    var add = function (editor, name, settings) {
      var sidebars = editor.sidebars ? editor.sidebars : [];
      sidebars.push({ name: name, settings: settings });
      editor.sidebars = sidebars;
    };

    return {
      add: add
    };
  }
);

/**
 * Editor.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*jshint scripturl:true */

/**
 * Include the base event class documentation.
 *
 * @include ../../../../../tools/docs/tinymce.Event.js
 */

/**
 * This class contains the core logic for a TinyMCE editor.
 *
 * @class tinymce.Editor
 * @mixes tinymce.util.Observable
 * @example
 * // Add a class to all paragraphs in the editor.
 * tinymce.activeEditor.dom.addClass(tinymce.activeEditor.dom.select('p'), 'someclass');
 *
 * // Gets the current editors selection as text
 * tinymce.activeEditor.selection.getContent({format: 'text'});
 *
 * // Creates a new editor instance
 * var ed = new tinymce.Editor('textareaid', {
 *     some_setting: 1
 * }, tinymce.EditorManager);
 *
 * ed.render();
 */
define(
  'tinymce.core.Editor',
  [
    'tinymce.core.AddOnManager',
    'tinymce.core.dom.DomQuery',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.EditorCommands',
    'tinymce.core.EditorObservable',
    'tinymce.core.Env',
    'tinymce.core.html.Serializer',
    'tinymce.core.init.Render',
    'tinymce.core.Mode',
    'tinymce.core.Shortcuts',
    'tinymce.core.ui.Sidebar',
    'tinymce.core.util.Tools',
    'tinymce.core.util.URI',
    'tinymce.core.util.Uuid'
  ],
  function (
    AddOnManager, DomQuery, DOMUtils, EditorCommands, EditorObservable, Env, Serializer, Render, Mode,
    Shortcuts, Sidebar, Tools, URI, Uuid
  ) {
    // Shorten these names
    var DOM = DOMUtils.DOM;
    var extend = Tools.extend, each = Tools.each;
    var trim = Tools.trim, resolve = Tools.resolve;
    var isGecko = Env.gecko, ie = Env.ie;

    /**
     * Include Editor API docs.
     *
     * @include ../../../../../tools/docs/tinymce.Editor.js
     */

    /**
     * Constructs a editor instance by id.
     *
     * @constructor
     * @method Editor
     * @param {String} id Unique id for the editor.
     * @param {Object} settings Settings for the editor.
     * @param {tinymce.EditorManager} editorManager EditorManager instance.
     */
    function Editor(id, settings, editorManager) {
      var self = this, documentBaseUrl, baseUri, defaultSettings;

      documentBaseUrl = self.documentBaseUrl = editorManager.documentBaseURL;
      baseUri = editorManager.baseURI;
      defaultSettings = editorManager.defaultSettings;

      /**
       * Name/value collection with editor settings.
       *
       * @property settings
       * @type Object
       * @example
       * // Get the value of the theme setting
       * tinymce.activeEditor.windowManager.alert("You are using the " + tinymce.activeEditor.settings.theme + " theme");
       */
      settings = extend({
        id: id,
        theme: 'modern',
        delta_width: 0,
        delta_height: 0,
        popup_css: '',
        plugins: '',
        document_base_url: documentBaseUrl,
        add_form_submit_trigger: true,
        submit_patch: true,
        add_unload_trigger: true,
        convert_urls: true,
        relative_urls: true,
        remove_script_host: true,
        object_resizing: true,
        doctype: '<!DOCTYPE html>',
        visual: true,
        font_size_style_values: 'xx-small,x-small,small,medium,large,x-large,xx-large',

        // See: http://www.w3.org/TR/CSS2/fonts.html#propdef-font-size
        font_size_legacy_values: 'xx-small,small,medium,large,x-large,xx-large,300%',
        forced_root_block: 'p',
        hidden_input: true,
        padd_empty_editor: true,
        render_ui: true,
        indentation: '30px',
        inline_styles: true,
        convert_fonts_to_spans: true,
        indent: 'simple',
        indent_before: 'p,h1,h2,h3,h4,h5,h6,blockquote,div,title,style,pre,script,td,th,ul,ol,li,dl,dt,dd,area,table,thead,' +
        'tfoot,tbody,tr,section,article,hgroup,aside,figure,figcaption,option,optgroup,datalist',
        indent_after: 'p,h1,h2,h3,h4,h5,h6,blockquote,div,title,style,pre,script,td,th,ul,ol,li,dl,dt,dd,area,table,thead,' +
        'tfoot,tbody,tr,section,article,hgroup,aside,figure,figcaption,option,optgroup,datalist',
        validate: true,
        entity_encoding: 'named',
        url_converter: self.convertURL,
        url_converter_scope: self,
        ie7_compat: true
      }, defaultSettings, settings);

      // Merge external_plugins
      if (defaultSettings && defaultSettings.external_plugins && settings.external_plugins) {
        settings.external_plugins = extend({}, defaultSettings.external_plugins, settings.external_plugins);
      }

      self.settings = settings;
      AddOnManager.language = settings.language || 'en';
      AddOnManager.languageLoad = settings.language_load;
      AddOnManager.baseURL = editorManager.baseURL;

      /**
       * Editor instance id, normally the same as the div/textarea that was replaced.
       *
       * @property id
       * @type String
       */
      self.id = settings.id = id;

      /**
       * State to force the editor to return false on a isDirty call.
       *
       * @property isNotDirty
       * @type Boolean
       * @deprecated Use editor.setDirty instead.
       */
      self.setDirty(false);

      /**
       * Name/Value object containing plugin instances.
       *
       * @property plugins
       * @type Object
       * @example
       * // Execute a method inside a plugin directly
       * tinymce.activeEditor.plugins.someplugin.someMethod();
       */
      self.plugins = {};

      /**
       * URI object to document configured for the TinyMCE instance.
       *
       * @property documentBaseURI
       * @type tinymce.util.URI
       * @example
       * // Get relative URL from the location of document_base_url
       * tinymce.activeEditor.documentBaseURI.toRelative('/somedir/somefile.htm');
       *
       * // Get absolute URL from the location of document_base_url
       * tinymce.activeEditor.documentBaseURI.toAbsolute('somefile.htm');
       */
      self.documentBaseURI = new URI(settings.document_base_url || documentBaseUrl, {
        base_uri: baseUri
      });

      /**
       * URI object to current document that holds the TinyMCE editor instance.
       *
       * @property baseURI
       * @type tinymce.util.URI
       * @example
       * // Get relative URL from the location of the API
       * tinymce.activeEditor.baseURI.toRelative('/somedir/somefile.htm');
       *
       * // Get absolute URL from the location of the API
       * tinymce.activeEditor.baseURI.toAbsolute('somefile.htm');
       */
      self.baseURI = baseUri;

      /**
       * Array with CSS files to load into the iframe.
       *
       * @property contentCSS
       * @type Array
       */
      self.contentCSS = [];

      /**
       * Array of CSS styles to add to head of document when the editor loads.
       *
       * @property contentStyles
       * @type Array
       */
      self.contentStyles = [];

      // Creates all events like onClick, onSetContent etc see Editor.Events.js for the actual logic
      self.shortcuts = new Shortcuts(self);
      self.loadedCSS = {};
      self.editorCommands = new EditorCommands(self);
      self.suffix = editorManager.suffix;
      self.editorManager = editorManager;
      self.inline = settings.inline;
      self.settings.content_editable = self.inline;

      if (settings.cache_suffix) {
        Env.cacheSuffix = settings.cache_suffix.replace(/^[\?\&]+/, '');
      }

      if (settings.override_viewport === false) {
        Env.overrideViewPort = false;
      }

      // Call setup
      editorManager.fire('SetupEditor', self);
      self.execCallback('setup', self);

      /**
       * Dom query instance with default scope to the editor document and default element is the body of the editor.
       *
       * @property $
       * @type tinymce.dom.DomQuery
       * @example
       * tinymce.activeEditor.$('p').css('color', 'red');
       * tinymce.activeEditor.$().append('<p>new</p>');
       */
      self.$ = DomQuery.overrideDefaults(function () {
        return {
          context: self.inline ? self.getBody() : self.getDoc(),
          element: self.getBody()
        };
      });
    }

    Editor.prototype = {
      /**
       * Renders the editor/adds it to the page.
       *
       * @method render
       */
      render: function () {
        Render.render(this);
      },

      /**
       * Focuses/activates the editor. This will set this editor as the activeEditor in the tinymce collection
       * it will also place DOM focus inside the editor.
       *
       * @method focus
       * @param {Boolean} skipFocus Skip DOM focus. Just set is as the active editor.
       */
      focus: function (skipFocus) {
        var self = this, selection = self.selection, contentEditable = self.settings.content_editable, rng;
        var controlElm, doc = self.getDoc(), body = self.getBody(), contentEditableHost;

        function getContentEditableHost(node) {
          return self.dom.getParent(node, function (node) {
            return self.dom.getContentEditable(node) === "true";
          });
        }

        if (self.removed) {
          return;
        }

        if (!skipFocus) {
          // Get selected control element
          rng = selection.getRng();
          if (rng.item) {
            controlElm = rng.item(0);
          }

          self.quirks.refreshContentEditable();

          // Move focus to contentEditable=true child if needed
          contentEditableHost = getContentEditableHost(selection.getNode());
          if (self.$.contains(body, contentEditableHost)) {
            contentEditableHost.focus();
            selection.normalize();
            self.editorManager.setActive(self);
            return;
          }

          // Focus the window iframe
          if (!contentEditable) {
            // WebKit needs this call to fire focusin event properly see #5948
            // But Opera pre Blink engine will produce an empty selection so skip Opera
            if (!Env.opera) {
              self.getBody().focus();
            }

            self.getWin().focus();
          }

          // Focus the body as well since it's contentEditable
          if (isGecko || contentEditable) {
            // Check for setActive since it doesn't scroll to the element
            if (body.setActive) {
              // IE 11 sometimes throws "Invalid function" then fallback to focus
              try {
                body.setActive();
              } catch (ex) {
                body.focus();
              }
            } else {
              body.focus();
            }

            if (contentEditable) {
              selection.normalize();
            }
          }

          // Restore selected control element
          // This is needed when for example an image is selected within a
          // layer a call to focus will then remove the control selection
          if (controlElm && controlElm.ownerDocument == doc) {
            rng = doc.body.createControlRange();
            rng.addElement(controlElm);
            rng.select();
          }
        }

        self.editorManager.setActive(self);
      },

      /**
       * Executes a legacy callback. This method is useful to call old 2.x option callbacks.
       * There new event model is a better way to add callback so this method might be removed in the future.
       *
       * @method execCallback
       * @param {String} name Name of the callback to execute.
       * @return {Object} Return value passed from callback function.
       */
      execCallback: function (name) {
        var self = this, callback = self.settings[name], scope;

        if (!callback) {
          return;
        }

        // Look through lookup
        if (self.callbackLookup && (scope = self.callbackLookup[name])) {
          callback = scope.func;
          scope = scope.scope;
        }

        if (typeof callback === 'string') {
          scope = callback.replace(/\.\w+$/, '');
          scope = scope ? resolve(scope) : 0;
          callback = resolve(callback);
          self.callbackLookup = self.callbackLookup || {};
          self.callbackLookup[name] = { func: callback, scope: scope };
        }

        return callback.apply(scope || self, Array.prototype.slice.call(arguments, 1));
      },

      /**
       * Translates the specified string by replacing variables with language pack items it will also check if there is
       * a key matching the input.
       *
       * @method translate
       * @param {String} text String to translate by the language pack data.
       * @return {String} Translated string.
       */
      translate: function (text) {
        var lang = this.settings.language || 'en', i18n = this.editorManager.i18n;

        if (!text) {
          return '';
        }

        text = i18n.data[lang + '.' + text] || text.replace(/\{\#([^\}]+)\}/g, function (a, b) {
          return i18n.data[lang + '.' + b] || '{#' + b + '}';
        });

        return this.editorManager.translate(text);
      },

      /**
       * Returns a language pack item by name/key.
       *
       * @method getLang
       * @param {String} name Name/key to get from the language pack.
       * @param {String} defaultVal Optional default value to retrieve.
       */
      getLang: function (name, defaultVal) {
        return (
          this.editorManager.i18n.data[(this.settings.language || 'en') + '.' + name] ||
          (defaultVal !== undefined ? defaultVal : '{#' + name + '}')
        );
      },

      /**
       * Returns a configuration parameter by name.
       *
       * @method getParam
       * @param {String} name Configruation parameter to retrieve.
       * @param {String} defaultVal Optional default value to return.
       * @param {String} type Optional type parameter.
       * @return {String} Configuration parameter value or default value.
       * @example
       * // Returns a specific config value from the currently active editor
       * var someval = tinymce.activeEditor.getParam('myvalue');
       *
       * // Returns a specific config value from a specific editor instance by id
       * var someval2 = tinymce.get('my_editor').getParam('myvalue');
       */
      getParam: function (name, defaultVal, type) {
        var value = name in this.settings ? this.settings[name] : defaultVal, output;

        if (type === 'hash') {
          output = {};

          if (typeof value === 'string') {
            each(value.indexOf('=') > 0 ? value.split(/[;,](?![^=;,]*(?:[;,]|$))/) : value.split(','), function (value) {
              value = value.split('=');

              if (value.length > 1) {
                output[trim(value[0])] = trim(value[1]);
              } else {
                output[trim(value[0])] = trim(value);
              }
            });
          } else {
            output = value;
          }

          return output;
        }

        return value;
      },

      /**
       * Dispatches out a onNodeChange event to all observers. This method should be called when you
       * need to update the UI states or element path etc.
       *
       * @method nodeChanged
       * @param {Object} args Optional args to pass to NodeChange event handlers.
       */
      nodeChanged: function (args) {
        this._nodeChangeDispatcher.nodeChanged(args);
      },

      /**
       * Adds a button that later gets created by the theme in the editors toolbars.
       *
       * @method addButton
       * @param {String} name Button name to add.
       * @param {Object} settings Settings object with title, cmd etc.
       * @example
       * // Adds a custom button to the editor that inserts contents when clicked
       * tinymce.init({
       *    ...
       *
       *    toolbar: 'example'
       *
       *    setup: function(ed) {
       *       ed.addButton('example', {
       *          title: 'My title',
       *          image: '../js/tinymce/plugins/example/img/example.gif',
       *          onclick: function() {
       *             ed.insertContent('Hello world!!');
       *          }
       *       });
       *    }
       * });
       */
      addButton: function (name, settings) {
        var self = this;

        if (settings.cmd) {
          settings.onclick = function () {
            self.execCommand(settings.cmd);
          };
        }

        if (!settings.text && !settings.icon) {
          settings.icon = name;
        }

        self.buttons = self.buttons || {};
        settings.tooltip = settings.tooltip || settings.title;
        self.buttons[name] = settings;
      },

      /**
       * Adds a sidebar for the editor instance.
       *
       * @method addSidebar
       * @param {String} name Sidebar name to add.
       * @param {Object} settings Settings object with icon, onshow etc.
       * @example
       * // Adds a custom sidebar that when clicked logs the panel element
       * tinymce.init({
       *    ...
       *    setup: function(ed) {
       *       ed.addSidebar('example', {
       *          tooltip: 'My sidebar',
       *          icon: 'my-side-bar',
       *          onshow: function(api) {
       *             console.log(api.element());
       *          }
       *       });
       *    }
       * });
       */
      addSidebar: function (name, settings) {
        return Sidebar.add(this, name, settings);
      },

      /**
       * Adds a menu item to be used in the menus of the theme. There might be multiple instances
       * of this menu item for example it might be used in the main menus of the theme but also in
       * the context menu so make sure that it's self contained and supports multiple instances.
       *
       * @method addMenuItem
       * @param {String} name Menu item name to add.
       * @param {Object} settings Settings object with title, cmd etc.
       * @example
       * // Adds a custom menu item to the editor that inserts contents when clicked
       * // The context option allows you to add the menu item to an existing default menu
       * tinymce.init({
       *    ...
       *
       *    setup: function(ed) {
       *       ed.addMenuItem('example', {
       *          text: 'My menu item',
       *          context: 'tools',
       *          onclick: function() {
       *             ed.insertContent('Hello world!!');
       *          }
       *       });
       *    }
       * });
       */
      addMenuItem: function (name, settings) {
        var self = this;

        if (settings.cmd) {
          settings.onclick = function () {
            self.execCommand(settings.cmd);
          };
        }

        self.menuItems = self.menuItems || {};
        self.menuItems[name] = settings;
      },

      /**
       * Adds a contextual toolbar to be rendered when the selector matches.
       *
       * @method addContextToolbar
       * @param {function/string} predicate Predicate that needs to return true if provided strings get converted into CSS predicates.
       * @param {String/Array} items String or array with items to add to the context toolbar.
       */
      addContextToolbar: function (predicate, items) {
        var self = this, selector;

        self.contextToolbars = self.contextToolbars || [];

        // Convert selector to predicate
        if (typeof predicate == "string") {
          selector = predicate;
          predicate = function (elm) {
            return self.dom.is(elm, selector);
          };
        }

        self.contextToolbars.push({
          id: Uuid.uuid('mcet'),
          predicate: predicate,
          items: items
        });
      },

      /**
       * Adds a custom command to the editor, you can also override existing commands with this method.
       * The command that you add can be executed with execCommand.
       *
       * @method addCommand
       * @param {String} name Command name to add/override.
       * @param {addCommandCallback} callback Function to execute when the command occurs.
       * @param {Object} scope Optional scope to execute the function in.
       * @example
       * // Adds a custom command that later can be executed using execCommand
       * tinymce.init({
       *    ...
       *
       *    setup: function(ed) {
       *       // Register example command
       *       ed.addCommand('mycommand', function(ui, v) {
       *          ed.windowManager.alert('Hello world!! Selection: ' + ed.selection.getContent({format: 'text'}));
       *       });
       *    }
       * });
       */
      addCommand: function (name, callback, scope) {
        /**
         * Callback function that gets called when a command is executed.
         *
         * @callback addCommandCallback
         * @param {Boolean} ui Display UI state true/false.
         * @param {Object} value Optional value for command.
         * @return {Boolean} True/false state if the command was handled or not.
         */
        this.editorCommands.addCommand(name, callback, scope);
      },

      /**
       * Adds a custom query state command to the editor, you can also override existing commands with this method.
       * The command that you add can be executed with queryCommandState function.
       *
       * @method addQueryStateHandler
       * @param {String} name Command name to add/override.
       * @param {addQueryStateHandlerCallback} callback Function to execute when the command state retrieval occurs.
       * @param {Object} scope Optional scope to execute the function in.
       */
      addQueryStateHandler: function (name, callback, scope) {
        /**
         * Callback function that gets called when a queryCommandState is executed.
         *
         * @callback addQueryStateHandlerCallback
         * @return {Boolean} True/false state if the command is enabled or not like is it bold.
         */
        this.editorCommands.addQueryStateHandler(name, callback, scope);
      },

      /**
       * Adds a custom query value command to the editor, you can also override existing commands with this method.
       * The command that you add can be executed with queryCommandValue function.
       *
       * @method addQueryValueHandler
       * @param {String} name Command name to add/override.
       * @param {addQueryValueHandlerCallback} callback Function to execute when the command value retrieval occurs.
       * @param {Object} scope Optional scope to execute the function in.
       */
      addQueryValueHandler: function (name, callback, scope) {
        /**
         * Callback function that gets called when a queryCommandValue is executed.
         *
         * @callback addQueryValueHandlerCallback
         * @return {Object} Value of the command or undefined.
         */
        this.editorCommands.addQueryValueHandler(name, callback, scope);
      },

      /**
       * Adds a keyboard shortcut for some command or function.
       *
       * @method addShortcut
       * @param {String} pattern Shortcut pattern. Like for example: ctrl+alt+o.
       * @param {String} desc Text description for the command.
       * @param {String/Function} cmdFunc Command name string or function to execute when the key is pressed.
       * @param {Object} sc Optional scope to execute the function in.
       * @return {Boolean} true/false state if the shortcut was added or not.
       */
      addShortcut: function (pattern, desc, cmdFunc, scope) {
        this.shortcuts.add(pattern, desc, cmdFunc, scope);
      },

      /**
       * Executes a command on the current instance. These commands can be TinyMCE internal commands prefixed with "mce" or
       * they can be build in browser commands such as "Bold". A compleate list of browser commands is available on MSDN or Mozilla.org.
       * This function will dispatch the execCommand function on each plugin, theme or the execcommand_callback option if none of these
       * return true it will handle the command as a internal browser command.
       *
       * @method execCommand
       * @param {String} cmd Command name to execute, for example mceLink or Bold.
       * @param {Boolean} ui True/false state if a UI (dialog) should be presented or not.
       * @param {mixed} value Optional command value, this can be anything.
       * @param {Object} args Optional arguments object.
       */
      execCommand: function (cmd, ui, value, args) {
        return this.editorCommands.execCommand(cmd, ui, value, args);
      },

      /**
       * Returns a command specific state, for example if bold is enabled or not.
       *
       * @method queryCommandState
       * @param {string} cmd Command to query state from.
       * @return {Boolean} Command specific state, for example if bold is enabled or not.
       */
      queryCommandState: function (cmd) {
        return this.editorCommands.queryCommandState(cmd);
      },

      /**
       * Returns a command specific value, for example the current font size.
       *
       * @method queryCommandValue
       * @param {string} cmd Command to query value from.
       * @return {Object} Command specific value, for example the current font size.
       */
      queryCommandValue: function (cmd) {
        return this.editorCommands.queryCommandValue(cmd);
      },

      /**
       * Returns true/false if the command is supported or not.
       *
       * @method queryCommandSupported
       * @param {String} cmd Command that we check support for.
       * @return {Boolean} true/false if the command is supported or not.
       */
      queryCommandSupported: function (cmd) {
        return this.editorCommands.queryCommandSupported(cmd);
      },

      /**
       * Shows the editor and hides any textarea/div that the editor is supposed to replace.
       *
       * @method show
       */
      show: function () {
        var self = this;

        if (self.hidden) {
          self.hidden = false;

          if (self.inline) {
            self.getBody().contentEditable = true;
          } else {
            DOM.show(self.getContainer());
            DOM.hide(self.id);
          }

          self.load();
          self.fire('show');
        }
      },

      /**
       * Hides the editor and shows any textarea/div that the editor is supposed to replace.
       *
       * @method hide
       */
      hide: function () {
        var self = this, doc = self.getDoc();

        if (!self.hidden) {
          // Fixed bug where IE has a blinking cursor left from the editor
          if (ie && doc && !self.inline) {
            doc.execCommand('SelectAll');
          }

          // We must save before we hide so Safari doesn't crash
          self.save();

          if (self.inline) {
            self.getBody().contentEditable = false;

            // Make sure the editor gets blurred
            if (self == self.editorManager.focusedEditor) {
              self.editorManager.focusedEditor = null;
            }
          } else {
            DOM.hide(self.getContainer());
            DOM.setStyle(self.id, 'display', self.orgDisplay);
          }

          self.hidden = true;
          self.fire('hide');
        }
      },

      /**
       * Returns true/false if the editor is hidden or not.
       *
       * @method isHidden
       * @return {Boolean} True/false if the editor is hidden or not.
       */
      isHidden: function () {
        return !!this.hidden;
      },

      /**
       * Sets the progress state, this will display a throbber/progess for the editor.
       * This is ideal for asynchronous operations like an AJAX save call.
       *
       * @method setProgressState
       * @param {Boolean} state Boolean state if the progress should be shown or hidden.
       * @param {Number} time Optional time to wait before the progress gets shown.
       * @return {Boolean} Same as the input state.
       * @example
       * // Show progress for the active editor
       * tinymce.activeEditor.setProgressState(true);
       *
       * // Hide progress for the active editor
       * tinymce.activeEditor.setProgressState(false);
       *
       * // Show progress after 3 seconds
       * tinymce.activeEditor.setProgressState(true, 3000);
       */
      setProgressState: function (state, time) {
        this.fire('ProgressState', { state: state, time: time });
      },

      /**
       * Loads contents from the textarea or div element that got converted into an editor instance.
       * This method will move the contents from that textarea or div into the editor by using setContent
       * so all events etc that method has will get dispatched as well.
       *
       * @method load
       * @param {Object} args Optional content object, this gets passed around through the whole load process.
       * @return {String} HTML string that got set into the editor.
       */
      load: function (args) {
        var self = this, elm = self.getElement(), html;

        if (self.removed) {
          return '';
        }

        if (elm) {
          args = args || {};
          args.load = true;

          html = self.setContent(elm.value !== undefined ? elm.value : elm.innerHTML, args);
          args.element = elm;

          if (!args.no_events) {
            self.fire('LoadContent', args);
          }

          args.element = elm = null;

          return html;
        }
      },

      /**
       * Saves the contents from a editor out to the textarea or div element that got converted into an editor instance.
       * This method will move the HTML contents from the editor into that textarea or div by getContent
       * so all events etc that method has will get dispatched as well.
       *
       * @method save
       * @param {Object} args Optional content object, this gets passed around through the whole save process.
       * @return {String} HTML string that got set into the textarea/div.
       */
      save: function (args) {
        var self = this, elm = self.getElement(), html, form;

        if (!elm || !self.initialized || self.removed) {
          return;
        }

        args = args || {};
        args.save = true;

        args.element = elm;
        html = args.content = self.getContent(args);

        if (!args.no_events) {
          self.fire('SaveContent', args);
        }

        // Always run this internal event
        if (args.format == 'raw') {
          self.fire('RawSaveContent', args);
        }

        html = args.content;

        if (!/TEXTAREA|INPUT/i.test(elm.nodeName)) {
          // Update DIV element when not in inline mode
          if (!self.inline) {
            elm.innerHTML = html;
          }

          // Update hidden form element
          if ((form = DOM.getParent(self.id, 'form'))) {
            each(form.elements, function (elm) {
              if (elm.name == self.id) {
                elm.value = html;
                return false;
              }
            });
          }
        } else {
          elm.value = html;
        }

        args.element = elm = null;

        if (args.set_dirty !== false) {
          self.setDirty(false);
        }

        return html;
      },

      /**
       * Sets the specified content to the editor instance, this will cleanup the content before it gets set using
       * the different cleanup rules options.
       *
       * @method setContent
       * @param {String} content Content to set to editor, normally HTML contents but can be other formats as well.
       * @param {Object} args Optional content object, this gets passed around through the whole set process.
       * @return {String} HTML string that got set into the editor.
       * @example
       * // Sets the HTML contents of the activeEditor editor
       * tinymce.activeEditor.setContent('<span>some</span> html');
       *
       * // Sets the raw contents of the activeEditor editor
       * tinymce.activeEditor.setContent('<span>some</span> html', {format: 'raw'});
       *
       * // Sets the content of a specific editor (my_editor in this example)
       * tinymce.get('my_editor').setContent(data);
       *
       * // Sets the bbcode contents of the activeEditor editor if the bbcode plugin was added
       * tinymce.activeEditor.setContent('[b]some[/b] html', {format: 'bbcode'});
       */
      setContent: function (content, args) {
        var self = this, body = self.getBody(), forcedRootBlockName, padd;

        // Setup args object
        args = args || {};
        args.format = args.format || 'html';
        args.set = true;
        args.content = content;

        // Do preprocessing
        if (!args.no_events) {
          self.fire('BeforeSetContent', args);
        }

        content = args.content;

        // Padd empty content in Gecko and Safari. Commands will otherwise fail on the content
        // It will also be impossible to place the caret in the editor unless there is a BR element present
        if (content.length === 0 || /^\s+$/.test(content)) {
          padd = ie && ie < 11 ? '' : '<br data-mce-bogus="1">';

          // Todo: There is a lot more root elements that need special padding
          // so separate this and add all of them at some point.
          if (body.nodeName == 'TABLE') {
            content = '<tr><td>' + padd + '</td></tr>';
          } else if (/^(UL|OL)$/.test(body.nodeName)) {
            content = '<li>' + padd + '</li>';
          }

          forcedRootBlockName = self.settings.forced_root_block;

          // Check if forcedRootBlock is configured and that the block is a valid child of the body
          if (forcedRootBlockName && self.schema.isValidChild(body.nodeName.toLowerCase(), forcedRootBlockName.toLowerCase())) {
            // Padd with bogus BR elements on modern browsers and IE 7 and 8 since they don't render empty P tags properly
            content = padd;
            content = self.dom.createHTML(forcedRootBlockName, self.settings.forced_root_block_attrs, content);
          } else if (!ie && !content) {
            // We need to add a BR when forced_root_block is disabled on non IE browsers to place the caret
            content = '<br data-mce-bogus="1">';
          }

          self.dom.setHTML(body, content);

          self.fire('SetContent', args);
        } else {
          // Parse and serialize the html
          if (args.format !== 'raw') {
            content = new Serializer({
              validate: self.validate
            }, self.schema).serialize(
              self.parser.parse(content, { isRootContent: true })
              );
          }

          // Set the new cleaned contents to the editor
          args.content = trim(content);
          self.dom.setHTML(body, args.content);

          // Do post processing
          if (!args.no_events) {
            self.fire('SetContent', args);
          }

          // Don't normalize selection if the focused element isn't the body in
          // content editable mode since it will steal focus otherwise
          /*if (!self.settings.content_editable || document.activeElement === self.getBody()) {
            self.selection.normalize();
          }*/
        }

        return args.content;
      },

      /**
       * Gets the content from the editor instance, this will cleanup the content before it gets returned using
       * the different cleanup rules options.
       *
       * @method getContent
       * @param {Object} args Optional content object, this gets passed around through the whole get process.
       * @return {String} Cleaned content string, normally HTML contents.
       * @example
       * // Get the HTML contents of the currently active editor
       * console.debug(tinymce.activeEditor.getContent());
       *
       * // Get the raw contents of the currently active editor
       * tinymce.activeEditor.getContent({format: 'raw'});
       *
       * // Get content of a specific editor:
       * tinymce.get('content id').getContent()
       */
      getContent: function (args) {
        var self = this, content, body = self.getBody();

        if (self.removed) {
          return '';
        }

        // Setup args object
        args = args || {};
        args.format = args.format || 'html';
        args.get = true;
        args.getInner = true;

        // Do preprocessing
        if (!args.no_events) {
          self.fire('BeforeGetContent', args);
        }

        // Get raw contents or by default the cleaned contents
        if (args.format == 'raw') {
          content = Tools.trim(self.serializer.getTrimmedContent());
        } else if (args.format == 'text') {
          content = body.innerText || body.textContent;
        } else {
          content = self.serializer.serialize(body, args);
        }

        // Trim whitespace in beginning/end of HTML
        if (args.format != 'text') {
          args.content = trim(content);
        } else {
          args.content = content;
        }

        // Do post processing
        if (!args.no_events) {
          self.fire('GetContent', args);
        }

        return args.content;
      },

      /**
       * Inserts content at caret position.
       *
       * @method insertContent
       * @param {String} content Content to insert.
       * @param {Object} args Optional args to pass to insert call.
       */
      insertContent: function (content, args) {
        if (args) {
          content = extend({ content: content }, args);
        }

        this.execCommand('mceInsertContent', false, content);
      },

      /**
       * Returns true/false if the editor is dirty or not. It will get dirty if the user has made modifications to the contents.
       *
       * The dirty state is automatically set to true if you do modifications to the content in other
       * words when new undo levels is created or if you undo/redo to update the contents of the editor. It will also be set
       * to false if you call editor.save().
       *
       * @method isDirty
       * @return {Boolean} True/false if the editor is dirty or not. It will get dirty if the user has made modifications to the contents.
       * @example
       * if (tinymce.activeEditor.isDirty())
       *     alert("You must save your contents.");
       */
      isDirty: function () {
        return !this.isNotDirty;
      },

      /**
       * Explicitly sets the dirty state. This will fire the dirty event if the editor dirty state is changed from false to true
       * by invoking this method.
       *
       * @method setDirty
       * @param {Boolean} state True/false if the editor is considered dirty.
       * @example
       * function ajaxSave() {
       *     var editor = tinymce.get('elm1');
       *
       *     // Save contents using some XHR call
       *     alert(editor.getContent());
       *
       *     editor.setDirty(false); // Force not dirty state
       * }
       */
      setDirty: function (state) {
        var oldState = !this.isNotDirty;

        this.isNotDirty = !state;

        if (state && state != oldState) {
          this.fire('dirty');
        }
      },

      /**
       * Sets the editor mode. Mode can be for example "design", "code" or "readonly".
       *
       * @method setMode
       * @param {String} mode Mode to set the editor in.
       */
      setMode: function (mode) {
        Mode.setMode(this, mode);
      },

      /**
       * Returns the editors container element. The container element wrappes in
       * all the elements added to the page for the editor. Such as UI, iframe etc.
       *
       * @method getContainer
       * @return {Element} HTML DOM element for the editor container.
       */
      getContainer: function () {
        var self = this;

        if (!self.container) {
          self.container = DOM.get(self.editorContainer || self.id + '_parent');
        }

        return self.container;
      },

      /**
       * Returns the editors content area container element. The this element is the one who
       * holds the iframe or the editable element.
       *
       * @method getContentAreaContainer
       * @return {Element} HTML DOM element for the editor area container.
       */
      getContentAreaContainer: function () {
        return this.contentAreaContainer;
      },

      /**
       * Returns the target element/textarea that got replaced with a TinyMCE editor instance.
       *
       * @method getElement
       * @return {Element} HTML DOM element for the replaced element.
       */
      getElement: function () {
        if (!this.targetElm) {
          this.targetElm = DOM.get(this.id);
        }

        return this.targetElm;
      },

      /**
       * Returns the iframes window object.
       *
       * @method getWin
       * @return {Window} Iframe DOM window object.
       */
      getWin: function () {
        var self = this, elm;

        if (!self.contentWindow) {
          elm = self.iframeElement;

          if (elm) {
            self.contentWindow = elm.contentWindow;
          }
        }

        return self.contentWindow;
      },

      /**
       * Returns the iframes document object.
       *
       * @method getDoc
       * @return {Document} Iframe DOM document object.
       */
      getDoc: function () {
        var self = this, win;

        if (!self.contentDocument) {
          win = self.getWin();

          if (win) {
            self.contentDocument = win.document;
          }
        }

        return self.contentDocument;
      },

      /**
       * Returns the root element of the editable area.
       * For a non-inline iframe-based editor, returns the iframe's body element.
       *
       * @method getBody
       * @return {Element} The root element of the editable area.
       */
      getBody: function () {
        var doc = this.getDoc();
        return this.bodyElement || (doc ? doc.body : null);
      },

      /**
       * URL converter function this gets executed each time a user adds an img, a or
       * any other element that has a URL in it. This will be called both by the DOM and HTML
       * manipulation functions.
       *
       * @method convertURL
       * @param {string} url URL to convert.
       * @param {string} name Attribute name src, href etc.
       * @param {string/HTMLElement} elm Tag name or HTML DOM element depending on HTML or DOM insert.
       * @return {string} Converted URL string.
       */
      convertURL: function (url, name, elm) {
        var self = this, settings = self.settings;

        // Use callback instead
        if (settings.urlconverter_callback) {
          return self.execCallback('urlconverter_callback', url, elm, true, name);
        }

        // Don't convert link href since thats the CSS files that gets loaded into the editor also skip local file URLs
        if (!settings.convert_urls || (elm && elm.nodeName == 'LINK') || url.indexOf('file:') === 0 || url.length === 0) {
          return url;
        }

        // Convert to relative
        if (settings.relative_urls) {
          return self.documentBaseURI.toRelative(url);
        }

        // Convert to absolute
        url = self.documentBaseURI.toAbsolute(url, settings.remove_script_host);

        return url;
      },

      /**
       * Adds visual aid for tables, anchors etc so they can be more easily edited inside the editor.
       *
       * @method addVisual
       * @param {Element} elm Optional root element to loop though to find tables etc that needs the visual aid.
       */
      addVisual: function (elm) {
        var self = this, settings = self.settings, dom = self.dom, cls;

        elm = elm || self.getBody();

        if (self.hasVisual === undefined) {
          self.hasVisual = settings.visual;
        }

        each(dom.select('table,a', elm), function (elm) {
          var value;

          switch (elm.nodeName) {
            case 'TABLE':
              cls = settings.visual_table_class || 'mce-item-table';
              value = dom.getAttrib(elm, 'border');

              if ((!value || value == '0') && self.hasVisual) {
                dom.addClass(elm, cls);
              } else {
                dom.removeClass(elm, cls);
              }

              return;

            case 'A':
              if (!dom.getAttrib(elm, 'href', false)) {
                value = dom.getAttrib(elm, 'name') || elm.id;
                cls = settings.visual_anchor_class || 'mce-item-anchor';

                if (value && self.hasVisual) {
                  dom.addClass(elm, cls);
                } else {
                  dom.removeClass(elm, cls);
                }
              }

              return;
          }
        });

        self.fire('VisualAid', { element: elm, hasVisual: self.hasVisual });
      },

      /**
       * Removes the editor from the dom and tinymce collection.
       *
       * @method remove
       */
      remove: function () {
        var self = this;

        if (!self.removed) {
          self.save();
          self.removed = 1;
          self.unbindAllNativeEvents();

          // Remove any hidden input
          if (self.hasHiddenInput) {
            DOM.remove(self.getElement().nextSibling);
          }

          if (!self.inline) {
            // IE 9 has a bug where the selection stops working if you place the
            // caret inside the editor then remove the iframe
            if (ie && ie < 10) {
              self.getDoc().execCommand('SelectAll', false, null);
            }

            DOM.setStyle(self.id, 'display', self.orgDisplay);
            self.getBody().onload = null; // Prevent #6816
          }

          self.fire('remove');

          self.editorManager.remove(self);
          DOM.remove(self.getContainer());
          self._selectionOverrides.destroy();
          self.editorUpload.destroy();
          self.destroy();
        }
      },

      /**
       * Destroys the editor instance by removing all events, element references or other resources
       * that could leak memory. This method will be called automatically when the page is unloaded
       * but you can also call it directly if you know what you are doing.
       *
       * @method destroy
       * @param {Boolean} automatic Optional state if the destroy is an automatic destroy or user called one.
       */
      destroy: function (automatic) {
        var self = this, form;

        // One time is enough
        if (self.destroyed) {
          return;
        }

        // If user manually calls destroy and not remove
        // Users seems to have logic that calls destroy instead of remove
        if (!automatic && !self.removed) {
          self.remove();
          return;
        }

        if (!automatic) {
          self.editorManager.off('beforeunload', self._beforeUnload);

          // Manual destroy
          if (self.theme && self.theme.destroy) {
            self.theme.destroy();
          }

          // Destroy controls, selection and dom
          self.selection.destroy();
          self.dom.destroy();
        }

        form = self.formElement;
        if (form) {
          if (form._mceOldSubmit) {
            form.submit = form._mceOldSubmit;
            form._mceOldSubmit = null;
          }

          DOM.unbind(form, 'submit reset', self.formEventDelegate);
        }

        self.contentAreaContainer = self.formElement = self.container = self.editorContainer = null;
        self.bodyElement = self.contentDocument = self.contentWindow = null;
        self.iframeElement = self.targetElm = null;

        if (self.selection) {
          self.selection = self.selection.win = self.selection.dom = self.selection.dom.doc = null;
        }

        self.destroyed = 1;
      },

      /**
       * Uploads all data uri/blob uri images in the editor contents to server.
       *
       * @method uploadImages
       * @param {function} callback Optional callback with images and status for each image.
       * @return {tinymce.util.Promise} Promise instance.
       */
      uploadImages: function (callback) {
        return this.editorUpload.uploadImages(callback);
      },

      // Internal functions

      _scanForImages: function () {
        return this.editorUpload.scanForImages();
      }
    };

    extend(Editor.prototype, EditorObservable);

    return Editor;
  }
);

/**
 * I18n.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * I18n class that handles translation of TinyMCE UI.
 * Uses po style with csharp style parameters.
 *
 * @class tinymce.util.I18n
 */
define(
  'tinymce.core.util.I18n',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    "use strict";

    var data = {}, code = "en";

    return {
      /**
       * Sets the current language code.
       *
       * @method setCode
       * @param {String} newCode Current language code.
       */
      setCode: function (newCode) {
        if (newCode) {
          code = newCode;
          this.rtl = this.data[newCode] ? this.data[newCode]._dir === 'rtl' : false;
        }
      },

      /**
       * Returns the current language code.
       *
       * @method getCode
       * @return {String} Current language code.
       */
      getCode: function () {
        return code;
      },

      /**
       * Property gets set to true if a RTL language pack was loaded.
       *
       * @property rtl
       * @type Boolean
       */
      rtl: false,

      /**
       * Adds translations for a specific language code.
       *
       * @method add
       * @param {String} code Language code like sv_SE.
       * @param {Array} items Name/value array with English en_US to sv_SE.
       */
      add: function (code, items) {
        var langData = data[code];

        if (!langData) {
          data[code] = langData = {};
        }

        for (var name in items) {
          langData[name] = items[name];
        }

        this.setCode(code);
      },

      /**
       * Translates the specified text.
       *
       * It has a few formats:
       * I18n.translate("Text");
       * I18n.translate(["Text {0}/{1}", 0, 1]);
       * I18n.translate({raw: "Raw string"});
       *
       * @method translate
       * @param {String/Object/Array} text Text to translate.
       * @return {String} String that got translated.
       */
      translate: function (text) {
        var langData = data[code] || {};

        /**
         * number - string
         * null, undefined and empty string - empty string
         * array - comma-delimited string
         * object - in [object Object]
         * function - in [object Function]
         *
         * @param obj
         * @returns {string}
         */
        function toString(obj) {
          if (Tools.is(obj, 'function')) {
            return Object.prototype.toString.call(obj);
          }
          return !isEmpty(obj) ? '' + obj : '';
        }

        function isEmpty(text) {
          return text === '' || text === null || Tools.is(text, 'undefined');
        }

        function getLangData(text) {
          // make sure we work on a string and return a string
          text = toString(text);
          return Tools.hasOwn(langData, text) ? toString(langData[text]) : text;
        }


        if (isEmpty(text)) {
          return '';
        }

        if (Tools.is(text, 'object') && Tools.hasOwn(text, 'raw')) {
          return toString(text.raw);
        }

        if (Tools.is(text, 'array')) {
          var values = text.slice(1);
          text = getLangData(text[0]).replace(/\{([0-9]+)\}/g, function ($1, $2) {
            return Tools.hasOwn(values, $2) ? toString(values[$2]) : $1;
          });
        }

        return getLangData(text).replace(/{context:\w+}$/, '');
      },

      data: data
    };
  }
);
/**
 * FocusManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class manages the focus/blur state of the editor. This class is needed since some
 * browsers fire false focus/blur states when the selection is moved to a UI dialog or similar.
 *
 * This class will fire two events focus and blur on the editor instances that got affected.
 * It will also handle the restore of selection when the focus is lost and returned.
 *
 * @class tinymce.FocusManager
 */
define(
  'tinymce.core.FocusManager',
  [
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.util.Delay",
    "tinymce.core.Env"
  ],
  function (DOMUtils, Delay, Env) {
    var selectionChangeHandler, documentFocusInHandler, documentMouseUpHandler, DOM = DOMUtils.DOM;

    var isUIElement = function (editor, elm) {
      var customSelector = editor ? editor.settings.custom_ui_selector : '';
      var parent = DOM.getParent(elm, function (elm) {
        return (
          FocusManager.isEditorUIElement(elm) ||
          (customSelector ? editor.dom.is(elm, customSelector) : false)
        );
      });
      return parent !== null;
    };

    var isInlineEditor = function (editor) {
      return editor.inline === true;
    };

    var isElementOursideInlineEditor = function (editor, target) {
      return isInlineEditor(editor) === false || editor.dom.isChildOf(target, editor.getBody()) === false;
    };

    /**
     * Constructs a new focus manager instance.
     *
     * @constructor FocusManager
     * @param {tinymce.EditorManager} editorManager Editor manager instance to handle focus for.
     */
    function FocusManager(editorManager) {
      function getActiveElement() {
        try {
          return document.activeElement;
        } catch (ex) {
          // IE sometimes fails to get the activeElement when resizing table
          // TODO: Investigate this
          return document.body;
        }
      }

      // We can't store a real range on IE 11 since it gets mutated so we need to use a bookmark object
      // TODO: Move this to a separate range utils class since it's it's logic is present in Selection as well.
      function createBookmark(dom, rng) {
        if (rng && rng.startContainer) {
          // Verify that the range is within the root of the editor
          if (!dom.isChildOf(rng.startContainer, dom.getRoot()) || !dom.isChildOf(rng.endContainer, dom.getRoot())) {
            return;
          }

          return {
            startContainer: rng.startContainer,
            startOffset: rng.startOffset,
            endContainer: rng.endContainer,
            endOffset: rng.endOffset
          };
        }

        return rng;
      }

      function bookmarkToRng(editor, bookmark) {
        var rng;

        if (bookmark.startContainer) {
          rng = editor.getDoc().createRange();
          rng.setStart(bookmark.startContainer, bookmark.startOffset);
          rng.setEnd(bookmark.endContainer, bookmark.endOffset);
        } else {
          rng = bookmark;
        }

        return rng;
      }

      function registerEvents(e) {
        var editor = e.editor;

        editor.on('init', function () {
          // Gecko/WebKit has ghost selections in iframes and IE only has one selection per browser tab
          if (editor.inline || Env.ie) {
            // Use the onbeforedeactivate event when available since it works better see #7023
            if ("onbeforedeactivate" in document && Env.ie < 9) {
              editor.dom.bind(editor.getBody(), 'beforedeactivate', function (e) {
                if (e.target != editor.getBody()) {
                  return;
                }

                try {
                  editor.lastRng = editor.selection.getRng();
                } catch (ex) {
                  // IE throws "Unexcpected call to method or property access" some times so lets ignore it
                }
              });
            } else {
              // On other browsers take snapshot on nodechange in inline mode since they have Ghost selections for iframes
              editor.on('nodechange mouseup keyup', function (e) {
                var node = getActiveElement();

                // Only act on manual nodechanges
                if (e.type == 'nodechange' && e.selectionChange) {
                  return;
                }

                // IE 11 reports active element as iframe not body of iframe
                if (node && node.id == editor.id + '_ifr') {
                  node = editor.getBody();
                }

                if (editor.dom.isChildOf(node, editor.getBody())) {
                  editor.lastRng = editor.selection.getRng();
                }
              });
            }

            // Handles the issue with WebKit not retaining selection within inline document
            // If the user releases the mouse out side the body since a mouse up event wont occur on the body
            if (Env.webkit && !selectionChangeHandler) {
              selectionChangeHandler = function () {
                var activeEditor = editorManager.activeEditor;

                if (activeEditor && activeEditor.selection) {
                  var rng = activeEditor.selection.getRng();

                  // Store when it's non collapsed
                  if (rng && !rng.collapsed) {
                    editor.lastRng = rng;
                  }
                }
              };

              DOM.bind(document, 'selectionchange', selectionChangeHandler);
            }
          }
        });

        editor.on('setcontent', function () {
          editor.lastRng = null;
        });

        // Remove last selection bookmark on mousedown see #6305
        editor.on('mousedown', function () {
          editor.selection.lastFocusBookmark = null;
        });

        editor.on('focusin', function () {
          var focusedEditor = editorManager.focusedEditor, lastRng;

          if (editor.selection.lastFocusBookmark) {
            lastRng = bookmarkToRng(editor, editor.selection.lastFocusBookmark);
            editor.selection.lastFocusBookmark = null;
            editor.selection.setRng(lastRng);
          }

          if (focusedEditor != editor) {
            if (focusedEditor) {
              focusedEditor.fire('blur', { focusedEditor: editor });
            }

            editorManager.setActive(editor);
            editorManager.focusedEditor = editor;
            editor.fire('focus', { blurredEditor: focusedEditor });
            editor.focus(true);
          }

          editor.lastRng = null;
        });

        editor.on('focusout', function () {
          Delay.setEditorTimeout(editor, function () {
            var focusedEditor = editorManager.focusedEditor;

            // Still the same editor the blur was outside any editor UI
            if (!isUIElement(editor, getActiveElement()) && focusedEditor == editor) {
              editor.fire('blur', { focusedEditor: null });
              editorManager.focusedEditor = null;

              // Make sure selection is valid could be invalid if the editor is blured and removed before the timeout occurs
              if (editor.selection) {
                editor.selection.lastFocusBookmark = null;
              }
            }
          });
        });

        // Check if focus is moved to an element outside the active editor by checking if the target node
        // isn't within the body of the activeEditor nor a UI element such as a dialog child control
        if (!documentFocusInHandler) {
          documentFocusInHandler = function (e) {
            var activeEditor = editorManager.activeEditor, target;

            target = e.target;

            if (activeEditor && target.ownerDocument === document) {
              // Check to make sure we have a valid selection don't update the bookmark if it's
              // a focusin to the body of the editor see #7025
              if (activeEditor.selection && target !== activeEditor.getBody() && isElementOursideInlineEditor(editor, target)) {
                activeEditor.selection.lastFocusBookmark = createBookmark(activeEditor.dom, activeEditor.lastRng);
              }

              // Fire a blur event if the element isn't a UI element
              if (target !== document.body && !isUIElement(activeEditor, target) && editorManager.focusedEditor === activeEditor) {
                activeEditor.fire('blur', { focusedEditor: null });
                editorManager.focusedEditor = null;
              }
            }
          };

          DOM.bind(document, 'focusin', documentFocusInHandler);
        }

        // Handle edge case when user starts the selection inside the editor and releases
        // the mouse outside the editor producing a new selection. This weird workaround is needed since
        // Gecko doesn't have the "selectionchange" event we need to do this. Fixes: #6843
        if (editor.inline && !documentMouseUpHandler) {
          documentMouseUpHandler = function (e) {
            var activeEditor = editorManager.activeEditor, dom = activeEditor.dom;

            if (activeEditor.inline && dom && !dom.isChildOf(e.target, activeEditor.getBody())) {
              var rng = activeEditor.selection.getRng();

              if (!rng.collapsed) {
                activeEditor.lastRng = rng;
              }
            }
          };

          DOM.bind(document, 'mouseup', documentMouseUpHandler);
        }
      }

      function unregisterDocumentEvents(e) {
        if (editorManager.focusedEditor == e.editor) {
          editorManager.focusedEditor = null;
        }

        if (!editorManager.activeEditor) {
          DOM.unbind(document, 'selectionchange', selectionChangeHandler);
          DOM.unbind(document, 'focusin', documentFocusInHandler);
          DOM.unbind(document, 'mouseup', documentMouseUpHandler);
          selectionChangeHandler = documentFocusInHandler = documentMouseUpHandler = null;
        }
      }

      editorManager.on('AddEditor', registerEvents);
      editorManager.on('RemoveEditor', unregisterDocumentEvents);
    }

    /**
     * Returns true if the specified element is part of the UI for example an button or text input.
     *
     * @method isEditorUIElement
     * @param  {Element} elm Element to check if it's part of the UI or not.
     * @return {Boolean} True/false state if the element is part of the UI or not.
     */
    FocusManager.isEditorUIElement = function (elm) {
      // Needs to be converted to string since svg can have focus: #6776
      return elm.className.toString().indexOf('mce-') !== -1;
    };

    FocusManager._isUIElement = isUIElement;

    return FocusManager;
  }
);

/**
 * LegacyInput.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Converts legacy input to modern HTML.
 *
 * @class tinymce.LegacyInput
 * @private
 */
define(
  'tinymce.core.LegacyInput',
  [
    "tinymce.core.util.Tools"
  ],
  function (Tools) {
    var each = Tools.each, explode = Tools.explode;

    var register = function (EditorManager) {
      EditorManager.on('AddEditor', function (e) {
        var editor = e.editor;

        editor.on('preInit', function () {
          var filters, fontSizes, dom, settings = editor.settings;

          function replaceWithSpan(node, styles) {
            each(styles, function (value, name) {
              if (value) {
                dom.setStyle(node, name, value);
              }
            });

            dom.rename(node, 'span');
          }

          function convert(e) {
            dom = editor.dom;

            if (settings.convert_fonts_to_spans) {
              each(dom.select('font,u,strike', e.node), function (node) {
                filters[node.nodeName.toLowerCase()](dom, node);
              });
            }
          }

          if (settings.inline_styles) {
            fontSizes = explode(settings.font_size_legacy_values);

            filters = {
              font: function (dom, node) {
                replaceWithSpan(node, {
                  backgroundColor: node.style.backgroundColor,
                  color: node.color,
                  fontFamily: node.face,
                  fontSize: fontSizes[parseInt(node.size, 10) - 1]
                });
              },

              u: function (dom, node) {
                // HTML5 allows U element
                if (editor.settings.schema === "html4") {
                  replaceWithSpan(node, {
                    textDecoration: 'underline'
                  });
                }
              },

              strike: function (dom, node) {
                replaceWithSpan(node, {
                  textDecoration: 'line-through'
                });
              }
            };

            editor.on('PreProcess SetContent', convert);
          }
        });
      });
    };

    return {
      register: register
    };
  }
);
/**
 * EditorManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class used as a factory for manager for tinymce.Editor instances.
 *
 * @example
 * tinymce.EditorManager.init({});
 *
 * @class tinymce.EditorManager
 * @mixes tinymce.util.Observable
 * @static
 */
define(
  'tinymce.core.EditorManager',
  [
    'tinymce.core.AddOnManager',
    'tinymce.core.dom.DomQuery',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.Editor',
    'tinymce.core.Env',
    'tinymce.core.ErrorReporter',
    'tinymce.core.FocusManager',
    'tinymce.core.LegacyInput',
    'tinymce.core.util.I18n',
    'tinymce.core.util.Observable',
    'tinymce.core.util.Promise',
    'tinymce.core.util.Tools',
    'tinymce.core.util.URI'
  ],
  function (AddOnManager, DomQuery, DOMUtils, Editor, Env, ErrorReporter, FocusManager, LegacyInput, I18n, Observable, Promise, Tools, URI) {
    var DOM = DOMUtils.DOM;
    var explode = Tools.explode, each = Tools.each, extend = Tools.extend;
    var instanceCounter = 0, beforeUnloadDelegate, EditorManager, boundGlobalEvents = false;

    function globalEventDelegate(e) {
      each(EditorManager.editors, function (editor) {
        if (e.type === 'scroll') {
          editor.fire('ScrollWindow', e);
        } else {
          editor.fire('ResizeWindow', e);
        }
      });
    }

    function toggleGlobalEvents(editors, state) {
      if (state !== boundGlobalEvents) {
        if (state) {
          DomQuery(window).on('resize scroll', globalEventDelegate);
        } else {
          DomQuery(window).off('resize scroll', globalEventDelegate);
        }

        boundGlobalEvents = state;
      }
    }

    function removeEditorFromList(editor) {
      var editors = EditorManager.editors, removedFromList;

      delete editors[editor.id];

      for (var i = 0; i < editors.length; i++) {
        if (editors[i] == editor) {
          editors.splice(i, 1);
          removedFromList = true;
          break;
        }
      }

      // Select another editor since the active one was removed
      if (EditorManager.activeEditor == editor) {
        EditorManager.activeEditor = editors[0];
      }

      // Clear focusedEditor if necessary, so that we don't try to blur the destroyed editor
      if (EditorManager.focusedEditor == editor) {
        EditorManager.focusedEditor = null;
      }

      return removedFromList;
    }

    function purgeDestroyedEditor(editor) {
      // User has manually destroyed the editor lets clean up the mess
      if (editor && editor.initialized && !(editor.getContainer() || editor.getBody()).parentNode) {
        removeEditorFromList(editor);
        editor.unbindAllNativeEvents();
        editor.destroy(true);
        editor.removed = true;
        editor = null;
      }

      return editor;
    }

    EditorManager = {
      /**
       * Dom query instance.
       *
       * @property $
       * @type tinymce.dom.DomQuery
       */
      $: DomQuery,

      /**
       * Major version of TinyMCE build.
       *
       * @property majorVersion
       * @type String
       */
      majorVersion: '4',

      /**
       * Minor version of TinyMCE build.
       *
       * @property minorVersion
       * @type String
       */
      minorVersion: '6.2',

      /**
       * Release date of TinyMCE build.
       *
       * @property releaseDate
       * @type String
       */
      releaseDate: '2017-05-23',

      /**
       * Collection of editor instances.
       *
       * @property editors
       * @type Object
       * @example
       * for (edId in tinymce.editors)
       *     tinymce.editors[edId].save();
       */
      editors: [],

      /**
       * Collection of language pack data.
       *
       * @property i18n
       * @type Object
       */
      i18n: I18n,

      /**
       * Currently active editor instance.
       *
       * @property activeEditor
       * @type tinymce.Editor
       * @example
       * tinyMCE.activeEditor.selection.getContent();
       * tinymce.EditorManager.activeEditor.selection.getContent();
       */
      activeEditor: null,

      setup: function () {
        var self = this, baseURL, documentBaseURL, suffix = "", preInit, src;

        // Get base URL for the current document
        documentBaseURL = URI.getDocumentBaseUrl(document.location);

        // Check if the URL is a document based format like: http://site/dir/file and file:///
        // leave other formats like applewebdata://... intact
        if (/^[^:]+:\/\/\/?[^\/]+\//.test(documentBaseURL)) {
          documentBaseURL = documentBaseURL.replace(/[\?#].*$/, '').replace(/[\/\\][^\/]+$/, '');

          if (!/[\/\\]$/.test(documentBaseURL)) {
            documentBaseURL += '/';
          }
        }

        // If tinymce is defined and has a base use that or use the old tinyMCEPreInit
        preInit = window.tinymce || window.tinyMCEPreInit;
        if (preInit) {
          baseURL = preInit.base || preInit.baseURL;
          suffix = preInit.suffix;
        } else {
          // Get base where the tinymce script is located
          var scripts = document.getElementsByTagName('script');
          for (var i = 0; i < scripts.length; i++) {
            src = scripts[i].src;

            // Script types supported:
            // tinymce.js tinymce.min.js tinymce.dev.js
            // tinymce.jquery.js tinymce.jquery.min.js tinymce.jquery.dev.js
            // tinymce.full.js tinymce.full.min.js tinymce.full.dev.js
            var srcScript = src.substring(src.lastIndexOf('/'));
            if (/tinymce(\.full|\.jquery|)(\.min|\.dev|)\.js/.test(src)) {
              if (srcScript.indexOf('.min') != -1) {
                suffix = '.min';
              }

              baseURL = src.substring(0, src.lastIndexOf('/'));
              break;
            }
          }

          // We didn't find any baseURL by looking at the script elements
          // Try to use the document.currentScript as a fallback
          if (!baseURL && document.currentScript) {
            src = document.currentScript.src;

            if (src.indexOf('.min') != -1) {
              suffix = '.min';
            }

            baseURL = src.substring(0, src.lastIndexOf('/'));
          }
        }

        /**
         * Base URL where the root directory if TinyMCE is located.
         *
         * @property baseURL
         * @type String
         */
        self.baseURL = new URI(documentBaseURL).toAbsolute(baseURL);

        /**
         * Document base URL where the current document is located.
         *
         * @property documentBaseURL
         * @type String
         */
        self.documentBaseURL = documentBaseURL;

        /**
         * Absolute baseURI for the installation path of TinyMCE.
         *
         * @property baseURI
         * @type tinymce.util.URI
         */
        self.baseURI = new URI(self.baseURL);

        /**
         * Current suffix to add to each plugin/theme that gets loaded for example ".min".
         *
         * @property suffix
         * @type String
         */
        self.suffix = suffix;

        self.focusManager = new FocusManager(self);
      },

      /**
       * Overrides the default settings for editor instances.
       *
       * @method overrideDefaults
       * @param {Object} defaultSettings Defaults settings object.
       */
      overrideDefaults: function (defaultSettings) {
        var baseUrl, suffix;

        baseUrl = defaultSettings.base_url;
        if (baseUrl) {
          this.baseURL = new URI(this.documentBaseURL).toAbsolute(baseUrl.replace(/\/+$/, ''));
          this.baseURI = new URI(this.baseURL);
        }

        suffix = defaultSettings.suffix;
        if (defaultSettings.suffix) {
          this.suffix = suffix;
        }

        this.defaultSettings = defaultSettings;

        var pluginBaseUrls = defaultSettings.plugin_base_urls;
        for (var name in pluginBaseUrls) {
          AddOnManager.PluginManager.urls[name] = pluginBaseUrls[name];
        }
      },

      /**
       * Initializes a set of editors. This method will create editors based on various settings.
       *
       * @method init
       * @param {Object} settings Settings object to be passed to each editor instance.
       * @return {tinymce.util.Promise} Promise that gets resolved with an array of editors when all editor instances are initialized.
       * @example
       * // Initializes a editor using the longer method
       * tinymce.EditorManager.init({
       *    some_settings : 'some value'
       * });
       *
       * // Initializes a editor instance using the shorter version and with a promise
       * tinymce.init({
       *    some_settings : 'some value'
       * }).then(function(editors) {
       *    ...
       * });
       */
      init: function (settings) {
        var self = this, result, invalidInlineTargets;

        invalidInlineTargets = Tools.makeMap(
          'area base basefont br col frame hr img input isindex link meta param embed source wbr track ' +
          'colgroup option tbody tfoot thead tr script noscript style textarea video audio iframe object menu',
          ' '
        );

        function isInvalidInlineTarget(settings, elm) {
          return settings.inline && elm.tagName.toLowerCase() in invalidInlineTargets;
        }

        function createId(elm) {
          var id = elm.id;

          // Use element id, or unique name or generate a unique id
          if (!id) {
            id = elm.name;

            if (id && !DOM.get(id)) {
              id = elm.name;
            } else {
              // Generate unique name
              id = DOM.uniqueId();
            }

            elm.setAttribute('id', id);
          }

          return id;
        }

        function execCallback(name) {
          var callback = settings[name];

          if (!callback) {
            return;
          }

          return callback.apply(self, Array.prototype.slice.call(arguments, 2));
        }

        function hasClass(elm, className) {
          return className.constructor === RegExp ? className.test(elm.className) : DOM.hasClass(elm, className);
        }

        function findTargets(settings) {
          var l, targets = [];

          if (Env.ie && Env.ie < 11) {
            ErrorReporter.initError(
              'TinyMCE does not support the browser you are using. For a list of supported' +
              ' browsers please see: https://www.tinymce.com/docs/get-started/system-requirements/'
            );
            return [];
          }

          if (settings.types) {
            each(settings.types, function (type) {
              targets = targets.concat(DOM.select(type.selector));
            });

            return targets;
          } else if (settings.selector) {
            return DOM.select(settings.selector);
          } else if (settings.target) {
            return [settings.target];
          }

          // Fallback to old setting
          switch (settings.mode) {
            case "exact":
              l = settings.elements || '';

              if (l.length > 0) {
                each(explode(l), function (id) {
                  var elm;

                  if ((elm = DOM.get(id))) {
                    targets.push(elm);
                  } else {
                    each(document.forms, function (f) {
                      each(f.elements, function (e) {
                        if (e.name === id) {
                          id = 'mce_editor_' + instanceCounter++;
                          DOM.setAttrib(e, 'id', id);
                          targets.push(e);
                        }
                      });
                    });
                  }
                });
              }
              break;

            case "textareas":
            case "specific_textareas":
              each(DOM.select('textarea'), function (elm) {
                if (settings.editor_deselector && hasClass(elm, settings.editor_deselector)) {
                  return;
                }

                if (!settings.editor_selector || hasClass(elm, settings.editor_selector)) {
                  targets.push(elm);
                }
              });
              break;
          }

          return targets;
        }

        var provideResults = function (editors) {
          result = editors;
        };

        function initEditors() {
          var initCount = 0, editors = [], targets;

          function createEditor(id, settings, targetElm) {
            var editor = new Editor(id, settings, self);

            editors.push(editor);

            editor.on('init', function () {
              if (++initCount === targets.length) {
                provideResults(editors);
              }
            });

            editor.targetElm = editor.targetElm || targetElm;
            editor.render();
          }

          DOM.unbind(window, 'ready', initEditors);
          execCallback('onpageload');

          targets = DomQuery.unique(findTargets(settings));

          // TODO: Deprecate this one
          if (settings.types) {
            each(settings.types, function (type) {
              Tools.each(targets, function (elm) {
                if (DOM.is(elm, type.selector)) {
                  createEditor(createId(elm), extend({}, settings, type), elm);
                  return false;
                }

                return true;
              });
            });

            return;
          }

          Tools.each(targets, function (elm) {
            purgeDestroyedEditor(self.get(elm.id));
          });

          targets = Tools.grep(targets, function (elm) {
            return !self.get(elm.id);
          });

          if (targets.length === 0) {
            provideResults([]);
          } else {
            each(targets, function (elm) {
              if (isInvalidInlineTarget(settings, elm)) {
                ErrorReporter.initError('Could not initialize inline editor on invalid inline target element', elm);
              } else {
                createEditor(createId(elm), settings, elm);
              }
            });
          }
        }

        self.settings = settings;
        DOM.bind(window, 'ready', initEditors);

        return new Promise(function (resolve) {
          if (result) {
            resolve(result);
          } else {
            provideResults = function (editors) {
              resolve(editors);
            };
          }
        });
      },

      /**
       * Returns a editor instance by id.
       *
       * @method get
       * @param {String/Number} id Editor instance id or index to return.
       * @return {tinymce.Editor} Editor instance to return.
       * @example
       * // Adds an onclick event to an editor by id (shorter version)
       * tinymce.get('mytextbox').on('click', function(e) {
       *    ed.windowManager.alert('Hello world!');
       * });
       *
       * // Adds an onclick event to an editor by id (longer version)
       * tinymce.EditorManager.get('mytextbox').on('click', function(e) {
       *    ed.windowManager.alert('Hello world!');
       * });
       */
      get: function (id) {
        if (!arguments.length) {
          return this.editors;
        }

        return id in this.editors ? this.editors[id] : null;
      },

      /**
       * Adds an editor instance to the editor collection. This will also set it as the active editor.
       *
       * @method add
       * @param {tinymce.Editor} editor Editor instance to add to the collection.
       * @return {tinymce.Editor} The same instance that got passed in.
       */
      add: function (editor) {
        var self = this, editors = self.editors;

        // Add named and index editor instance
        editors[editor.id] = editor;
        editors.push(editor);

        toggleGlobalEvents(editors, true);

        // Doesn't call setActive method since we don't want
        // to fire a bunch of activate/deactivate calls while initializing
        self.activeEditor = editor;

        self.fire('AddEditor', { editor: editor });

        if (!beforeUnloadDelegate) {
          beforeUnloadDelegate = function () {
            self.fire('BeforeUnload');
          };

          DOM.bind(window, 'beforeunload', beforeUnloadDelegate);
        }

        return editor;
      },

      /**
       * Creates an editor instance and adds it to the EditorManager collection.
       *
       * @method createEditor
       * @param {String} id Instance id to use for editor.
       * @param {Object} settings Editor instance settings.
       * @return {tinymce.Editor} Editor instance that got created.
       */
      createEditor: function (id, settings) {
        return this.add(new Editor(id, settings, this));
      },

      /**
       * Removes a editor or editors form page.
       *
       * @example
       * // Remove all editors bound to divs
       * tinymce.remove('div');
       *
       * // Remove all editors bound to textareas
       * tinymce.remove('textarea');
       *
       * // Remove all editors
       * tinymce.remove();
       *
       * // Remove specific instance by id
       * tinymce.remove('#id');
       *
       * @method remove
       * @param {tinymce.Editor/String/Object} [selector] CSS selector or editor instance to remove.
       * @return {tinymce.Editor} The editor that got passed in will be return if it was found otherwise null.
       */
      remove: function (selector) {
        var self = this, i, editors = self.editors, editor;

        // Remove all editors
        if (!selector) {
          for (i = editors.length - 1; i >= 0; i--) {
            self.remove(editors[i]);
          }

          return;
        }

        // Remove editors by selector
        if (typeof selector == "string") {
          selector = selector.selector || selector;

          each(DOM.select(selector), function (elm) {
            editor = editors[elm.id];

            if (editor) {
              self.remove(editor);
            }
          });

          return;
        }

        // Remove specific editor
        editor = selector;

        // Not in the collection
        if (!editors[editor.id]) {
          return null;
        }

        if (removeEditorFromList(editor)) {
          self.fire('RemoveEditor', { editor: editor });
        }

        if (!editors.length) {
          DOM.unbind(window, 'beforeunload', beforeUnloadDelegate);
        }

        editor.remove();

        toggleGlobalEvents(editors, editors.length > 0);

        return editor;
      },

      /**
       * Executes a specific command on the currently active editor.
       *
       * @method execCommand
       * @param {String} cmd Command to perform for example Bold.
       * @param {Boolean} ui Optional boolean state if a UI should be presented for the command or not.
       * @param {String} value Optional value parameter like for example an URL to a link.
       * @return {Boolean} true/false if the command was executed or not.
       */
      execCommand: function (cmd, ui, value) {
        var self = this, editor = self.get(value);

        // Manager commands
        switch (cmd) {
          case "mceAddEditor":
            if (!self.get(value)) {
              new Editor(value, self.settings, self).render();
            }

            return true;

          case "mceRemoveEditor":
            if (editor) {
              editor.remove();
            }

            return true;

          case 'mceToggleEditor':
            if (!editor) {
              self.execCommand('mceAddEditor', 0, value);
              return true;
            }

            if (editor.isHidden()) {
              editor.show();
            } else {
              editor.hide();
            }

            return true;
        }

        // Run command on active editor
        if (self.activeEditor) {
          return self.activeEditor.execCommand(cmd, ui, value);
        }

        return false;
      },

      /**
       * Calls the save method on all editor instances in the collection. This can be useful when a form is to be submitted.
       *
       * @method triggerSave
       * @example
       * // Saves all contents
       * tinyMCE.triggerSave();
       */
      triggerSave: function () {
        each(this.editors, function (editor) {
          editor.save();
        });
      },

      /**
       * Adds a language pack, this gets called by the loaded language files like en.js.
       *
       * @method addI18n
       * @param {String} code Optional language code.
       * @param {Object} items Name/value object with translations.
       */
      addI18n: function (code, items) {
        I18n.add(code, items);
      },

      /**
       * Translates the specified string using the language pack items.
       *
       * @method translate
       * @param {String/Array/Object} text String to translate
       * @return {String} Translated string.
       */
      translate: function (text) {
        return I18n.translate(text);
      },

      /**
       * Sets the active editor instance and fires the deactivate/activate events.
       *
       * @method setActive
       * @param {tinymce.Editor} editor Editor instance to set as the active instance.
       */
      setActive: function (editor) {
        var activeEditor = this.activeEditor;

        if (this.activeEditor != editor) {
          if (activeEditor) {
            activeEditor.fire('deactivate', { relatedTarget: editor });
          }

          editor.fire('activate', { relatedTarget: activeEditor });
        }

        this.activeEditor = editor;
      }
    };

    extend(EditorManager, Observable);

    EditorManager.setup();
    LegacyInput.register(EditorManager);

    return EditorManager;
  }
);

/**
 * XHR.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class enables you to send XMLHTTPRequests cross browser.
 * @class tinymce.util.XHR
 * @mixes tinymce.util.Observable
 * @static
 * @example
 * // Sends a low level Ajax request
 * tinymce.util.XHR.send({
 *    url: 'someurl',
 *    success: function(text) {
 *       console.debug(text);
 *    }
 * });
 *
 * // Add custom header to XHR request
 * tinymce.util.XHR.on('beforeSend', function(e) {
 *     e.xhr.setRequestHeader('X-Requested-With', 'Something');
 * });
 */
define(
  'tinymce.core.util.XHR',
  [
    "tinymce.core.util.Observable",
    "tinymce.core.util.Tools"
  ],
  function (Observable, Tools) {
    var XHR = {
      /**
       * Sends a XMLHTTPRequest.
       * Consult the Wiki for details on what settings this method takes.
       *
       * @method send
       * @param {Object} settings Object will target URL, callbacks and other info needed to make the request.
       */
      send: function (settings) {
        var xhr, count = 0;

        function ready() {
          if (!settings.async || xhr.readyState == 4 || count++ > 10000) {
            if (settings.success && count < 10000 && xhr.status == 200) {
              settings.success.call(settings.success_scope, '' + xhr.responseText, xhr, settings);
            } else if (settings.error) {
              settings.error.call(settings.error_scope, count > 10000 ? 'TIMED_OUT' : 'GENERAL', xhr, settings);
            }

            xhr = null;
          } else {
            setTimeout(ready, 10);
          }
        }

        // Default settings
        settings.scope = settings.scope || this;
        settings.success_scope = settings.success_scope || settings.scope;
        settings.error_scope = settings.error_scope || settings.scope;
        settings.async = settings.async === false ? false : true;
        settings.data = settings.data || '';

        XHR.fire('beforeInitialize', { settings: settings });

        xhr = new XMLHttpRequest();

        if (xhr) {
          if (xhr.overrideMimeType) {
            xhr.overrideMimeType(settings.content_type);
          }

          xhr.open(settings.type || (settings.data ? 'POST' : 'GET'), settings.url, settings.async);

          if (settings.crossDomain) {
            xhr.withCredentials = true;
          }

          if (settings.content_type) {
            xhr.setRequestHeader('Content-Type', settings.content_type);
          }

          if (settings.requestheaders) {
            Tools.each(settings.requestheaders, function (header) {
              xhr.setRequestHeader(header.key, header.value);
            });
          }

          xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');

          xhr = XHR.fire('beforeSend', { xhr: xhr, settings: settings }).xhr;
          xhr.send(settings.data);

          // Syncronous request
          if (!settings.async) {
            return ready();
          }

          // Wait for response, onReadyStateChange can not be used since it leaks memory in IE
          setTimeout(ready, 10);
        }
      }
    };

    Tools.extend(XHR, Observable);

    return XHR;
  }
);

/**
 * JSON.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * JSON parser and serializer class.
 *
 * @class tinymce.util.JSON
 * @static
 * @example
 * // JSON parse a string into an object
 * var obj = tinymce.util.JSON.parse(somestring);
 *
 * // JSON serialize a object into an string
 * var str = tinymce.util.JSON.serialize(obj);
 */
define(
  'tinymce.core.util.JSON',
  [
  ],
  function () {
    function serialize(o, quote) {
      var i, v, t, name;

      quote = quote || '"';

      if (o === null) {
        return 'null';
      }

      t = typeof o;

      if (t == 'string') {
        v = '\bb\tt\nn\ff\rr\""\'\'\\\\';

        /*eslint no-control-regex:0 */
        return quote + o.replace(/([\u0080-\uFFFF\x00-\x1f\"\'\\])/g, function (a, b) {
          // Make sure single quotes never get encoded inside double quotes for JSON compatibility
          if (quote === '"' && a === "'") {
            return a;
          }

          i = v.indexOf(b);

          if (i + 1) {
            return '\\' + v.charAt(i + 1);
          }

          a = b.charCodeAt().toString(16);

          return '\\u' + '0000'.substring(a.length) + a;
        }) + quote;
      }

      if (t == 'object') {
        if (o.hasOwnProperty && Object.prototype.toString.call(o) === '[object Array]') {
          for (i = 0, v = '['; i < o.length; i++) {
            v += (i > 0 ? ',' : '') + serialize(o[i], quote);
          }

          return v + ']';
        }

        v = '{';

        for (name in o) {
          if (o.hasOwnProperty(name)) {
            v += typeof o[name] != 'function' ? (v.length > 1 ? ',' + quote : quote) + name +
              quote + ':' + serialize(o[name], quote) : '';
          }
        }

        return v + '}';
      }

      return '' + o;
    }

    return {
      /**
       * Serializes the specified object as a JSON string.
       *
       * @method serialize
       * @param {Object} obj Object to serialize as a JSON string.
       * @param {String} quote Optional quote string defaults to ".
       * @return {string} JSON string serialized from input.
       */
      serialize: serialize,

      /**
       * Unserializes/parses the specified JSON string into a object.
       *
       * @method parse
       * @param {string} s JSON String to parse into a JavaScript object.
       * @return {Object} Object from input JSON string or undefined if it failed.
       */
      parse: function (text) {
        try {
          // Trick uglify JS
          return window[String.fromCharCode(101) + 'val']('(' + text + ')');
        } catch (ex) {
          // Ignore
        }
      }

      /**#@-*/
    };
  }
);

/**
 * JSONRequest.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class enables you to use JSON-RPC to call backend methods.
 *
 * @class tinymce.util.JSONRequest
 * @example
 * var json = new tinymce.util.JSONRequest({
 *     url: 'somebackend.php'
 * });
 *
 * // Send RPC call 1
 * json.send({
 *     method: 'someMethod1',
 *     params: ['a', 'b'],
 *     success: function(result) {
 *         console.dir(result);
 *     }
 * });
 *
 * // Send RPC call 2
 * json.send({
 *     method: 'someMethod2',
 *     params: ['a', 'b'],
 *     success: function(result) {
 *         console.dir(result);
 *     }
 * });
 */
define(
  'tinymce.core.util.JSONRequest',
  [
    "tinymce.core.util.JSON",
    "tinymce.core.util.XHR",
    "tinymce.core.util.Tools"
  ],
  function (JSON, XHR, Tools) {
    var extend = Tools.extend;

    function JSONRequest(settings) {
      this.settings = extend({}, settings);
      this.count = 0;
    }

    /**
     * Simple helper function to send a JSON-RPC request without the need to initialize an object.
     * Consult the Wiki API documentation for more details on what you can pass to this function.
     *
     * @method sendRPC
     * @static
     * @param {Object} o Call object where there are three field id, method and params this object should also contain callbacks etc.
     */
    JSONRequest.sendRPC = function (o) {
      return new JSONRequest().send(o);
    };

    JSONRequest.prototype = {
      /**
       * Sends a JSON-RPC call. Consult the Wiki API documentation for more details on what you can pass to this function.
       *
       * @method send
       * @param {Object} args Call object where there are three field id, method and params this object should also contain callbacks etc.
       */
      send: function (args) {
        var ecb = args.error, scb = args.success;

        args = extend(this.settings, args);

        args.success = function (c, x) {
          c = JSON.parse(c);

          if (typeof c == 'undefined') {
            c = {
              error: 'JSON Parse error.'
            };
          }

          if (c.error) {
            ecb.call(args.error_scope || args.scope, c.error, x);
          } else {
            scb.call(args.success_scope || args.scope, c.result);
          }
        };

        args.error = function (ty, x) {
          if (ecb) {
            ecb.call(args.error_scope || args.scope, ty, x);
          }
        };

        args.data = JSON.serialize({
          id: args.id || 'c' + (this.count++),
          method: args.method,
          params: args.params
        });

        // JSON content type for Ruby on rails. Bug: #1883287
        args.content_type = 'application/json';

        XHR.send(args);
      }
    };

    return JSONRequest;
  }
);
/**
 * JSONP.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.util.JSONP',
  [
    "tinymce.core.dom.DOMUtils"
  ],
  function (DOMUtils) {
    return {
      callbacks: {},
      count: 0,

      send: function (settings) {
        var self = this, dom = DOMUtils.DOM, count = settings.count !== undefined ? settings.count : self.count;
        var id = 'tinymce_jsonp_' + count;

        self.callbacks[count] = function (json) {
          dom.remove(id);
          delete self.callbacks[count];

          settings.callback(json);
        };

        dom.add(dom.doc.body, 'script', {
          id: id,
          src: settings.url,
          type: 'text/javascript'
        });

        self.count++;
      }
    };
  }
);
/**
 * LocalStorage.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class will simulate LocalStorage on IE 7 and return the native version on modern browsers.
 * Storage is done using userData on IE 7 and a special serialization format. The format is designed
 * to be as small as possible by making sure that the keys and values doesn't need to be encoded. This
 * makes it possible to store for example HTML data.
 *
 * Storage format for userData:
 * <base 32 key length>,<key string>,<base 32 value length>,<value>,...
 *
 * For example this data key1=value1,key2=value2 would be:
 * 4,key1,6,value1,4,key2,6,value2
 *
 * @class tinymce.util.LocalStorage
 * @static
 * @version 4.0
 * @example
 * tinymce.util.LocalStorage.setItem('key', 'value');
 * var value = tinymce.util.LocalStorage.getItem('key');
 */
define(
  'tinymce.core.util.LocalStorage',
  [
  ],
  function () {
    var LocalStorage, storageElm, items, keys, userDataKey, hasOldIEDataSupport;

    // Check for native support
    try {
      if (window.localStorage) {
        return localStorage;
      }
    } catch (ex) {
      // Ignore
    }

    userDataKey = "tinymce";
    storageElm = document.documentElement;
    hasOldIEDataSupport = !!storageElm.addBehavior;

    if (hasOldIEDataSupport) {
      storageElm.addBehavior('#default#userData');
    }

    /**
     * Gets the keys names and updates LocalStorage.length property. Since IE7 doesn't have any getters/setters.
     */
    function updateKeys() {
      keys = [];

      for (var key in items) {
        keys.push(key);
      }

      LocalStorage.length = keys.length;
    }

    /**
     * Loads the userData string and parses it into the items structure.
     */
    function load() {
      var key, data, value, pos = 0;

      items = {};

      // localStorage can be disabled on WebKit/Gecko so make a dummy storage
      if (!hasOldIEDataSupport) {
        return;
      }

      function next(end) {
        var value, nextPos;

        nextPos = end !== undefined ? pos + end : data.indexOf(',', pos);
        if (nextPos === -1 || nextPos > data.length) {
          return null;
        }

        value = data.substring(pos, nextPos);
        pos = nextPos + 1;

        return value;
      }

      storageElm.load(userDataKey);
      data = storageElm.getAttribute(userDataKey) || '';

      do {
        var offset = next();
        if (offset === null) {
          break;
        }

        key = next(parseInt(offset, 32) || 0);
        if (key !== null) {
          offset = next();
          if (offset === null) {
            break;
          }

          value = next(parseInt(offset, 32) || 0);

          if (key) {
            items[key] = value;
          }
        }
      } while (key !== null);

      updateKeys();
    }

    /**
     * Saves the items structure into a the userData format.
     */
    function save() {
      var value, data = '';

      // localStorage can be disabled on WebKit/Gecko so make a dummy storage
      if (!hasOldIEDataSupport) {
        return;
      }

      for (var key in items) {
        value = items[key];
        data += (data ? ',' : '') + key.length.toString(32) + ',' + key + ',' + value.length.toString(32) + ',' + value;
      }

      storageElm.setAttribute(userDataKey, data);

      try {
        storageElm.save(userDataKey);
      } catch (ex) {
        // Ignore disk full
      }

      updateKeys();
    }

    LocalStorage = {
      /**
       * Length of the number of items in storage.
       *
       * @property length
       * @type Number
       * @return {Number} Number of items in storage.
       */
      //length:0,

      /**
       * Returns the key name by index.
       *
       * @method key
       * @param {Number} index Index of key to return.
       * @return {String} Key value or null if it wasn't found.
       */
      key: function (index) {
        return keys[index];
      },

      /**
       * Returns the value if the specified key or null if it wasn't found.
       *
       * @method getItem
       * @param {String} key Key of item to retrieve.
       * @return {String} Value of the specified item or null if it wasn't found.
       */
      getItem: function (key) {
        return key in items ? items[key] : null;
      },

      /**
       * Sets the value of the specified item by it's key.
       *
       * @method setItem
       * @param {String} key Key of the item to set.
       * @param {String} value Value of the item to set.
       */
      setItem: function (key, value) {
        items[key] = "" + value;
        save();
      },

      /**
       * Removes the specified item by key.
       *
       * @method removeItem
       * @param {String} key Key of item to remove.
       */
      removeItem: function (key) {
        delete items[key];
        save();
      },

      /**
       * Removes all items.
       *
       * @method clear
       */
      clear: function () {
        items = {};
        save();
      }
    };

    load();

    return LocalStorage;
  }
);

/**
 * Compat.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * TinyMCE core class.
 *
 * @static
 * @class tinymce
 * @borrow-members tinymce.EditorManager
 * @borrow-members tinymce.util.Tools
 */
define(
  'tinymce.core.api.Compat',
  [
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.dom.EventUtils",
    "tinymce.core.dom.ScriptLoader",
    "tinymce.core.AddOnManager",
    "tinymce.core.util.Tools",
    "tinymce.core.Env"
  ],
  function (DOMUtils, EventUtils, ScriptLoader, AddOnManager, Tools, Env) {
    var register = function (tinymce) {
      /**
       * @property {tinymce.dom.DOMUtils} DOM Global DOM instance.
       * @property {tinymce.dom.ScriptLoader} ScriptLoader Global ScriptLoader instance.
       * @property {tinymce.AddOnManager} PluginManager Global PluginManager instance.
       * @property {tinymce.AddOnManager} ThemeManager Global ThemeManager instance.
       */
      tinymce.DOM = DOMUtils.DOM;
      tinymce.ScriptLoader = ScriptLoader.ScriptLoader;
      tinymce.PluginManager = AddOnManager.PluginManager;
      tinymce.ThemeManager = AddOnManager.ThemeManager;

      tinymce.dom = tinymce.dom || {};
      tinymce.dom.Event = EventUtils.Event;

      Tools.each(
        'trim isArray is toArray makeMap each map grep inArray extend create walk createNS resolve explode _addCacheSuffix'.split(' '),
        function (key) {
          tinymce[key] = Tools[key];
        }
      );

      Tools.each('isOpera isWebKit isIE isGecko isMac'.split(' '), function (name) {
        tinymce[name] = Env[name.substr(2).toLowerCase()];
      });
    };

    return {
      register: register
    };
  }
);

// Describe the different namespaces

/**
 * Root level namespace this contains classes directly related to the TinyMCE editor.
 *
 * @namespace tinymce
 */

/**
 * Contains classes for handling the browsers DOM.
 *
 * @namespace tinymce.dom
 */

/**
 * Contains html parser and serializer logic.
 *
 * @namespace tinymce.html
 */

/**
 * Contains the different UI types such as buttons, listboxes etc.
 *
 * @namespace tinymce.ui
 */

/**
 * Contains various utility classes such as json parser, cookies etc.
 *
 * @namespace tinymce.util
 */

/**
 * Contains modules to handle data binding.
 *
 * @namespace tinymce.data
 */

/**
 * Color.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class lets you parse/serialize colors and convert rgb/hsb.
 *
 * @class tinymce.util.Color
 * @example
 * var white = new tinymce.util.Color({r: 255, g: 255, b: 255});
 * var red = new tinymce.util.Color('#FF0000');
 *
 * console.log(white.toHex(), red.toHsv());
 */
define(
  'tinymce.core.util.Color',
  [
  ],
  function () {
    var min = Math.min, max = Math.max, round = Math.round;

    /**
     * Constructs a new color instance.
     *
     * @constructor
     * @method Color
     * @param {String} value Optional initial value to parse.
     */
    function Color(value) {
      var self = this, r = 0, g = 0, b = 0;

      function rgb2hsv(r, g, b) {
        var h, s, v, d, minRGB, maxRGB;

        h = 0;
        s = 0;
        v = 0;
        r = r / 255;
        g = g / 255;
        b = b / 255;

        minRGB = min(r, min(g, b));
        maxRGB = max(r, max(g, b));

        if (minRGB == maxRGB) {
          v = minRGB;

          return {
            h: 0,
            s: 0,
            v: v * 100
          };
        }

        /*eslint no-nested-ternary:0 */
        d = (r == minRGB) ? g - b : ((b == minRGB) ? r - g : b - r);
        h = (r == minRGB) ? 3 : ((b == minRGB) ? 1 : 5);
        h = 60 * (h - d / (maxRGB - minRGB));
        s = (maxRGB - minRGB) / maxRGB;
        v = maxRGB;

        return {
          h: round(h),
          s: round(s * 100),
          v: round(v * 100)
        };
      }

      function hsvToRgb(hue, saturation, brightness) {
        var side, chroma, x, match;

        hue = (parseInt(hue, 10) || 0) % 360;
        saturation = parseInt(saturation, 10) / 100;
        brightness = parseInt(brightness, 10) / 100;
        saturation = max(0, min(saturation, 1));
        brightness = max(0, min(brightness, 1));

        if (saturation === 0) {
          r = g = b = round(255 * brightness);
          return;
        }

        side = hue / 60;
        chroma = brightness * saturation;
        x = chroma * (1 - Math.abs(side % 2 - 1));
        match = brightness - chroma;

        switch (Math.floor(side)) {
          case 0:
            r = chroma;
            g = x;
            b = 0;
            break;

          case 1:
            r = x;
            g = chroma;
            b = 0;
            break;

          case 2:
            r = 0;
            g = chroma;
            b = x;
            break;

          case 3:
            r = 0;
            g = x;
            b = chroma;
            break;

          case 4:
            r = x;
            g = 0;
            b = chroma;
            break;

          case 5:
            r = chroma;
            g = 0;
            b = x;
            break;

          default:
            r = g = b = 0;
        }

        r = round(255 * (r + match));
        g = round(255 * (g + match));
        b = round(255 * (b + match));
      }

      /**
       * Returns the hex string of the current color. For example: #ff00ff
       *
       * @method toHex
       * @return {String} Hex string of current color.
       */
      function toHex() {
        function hex(val) {
          val = parseInt(val, 10).toString(16);

          return val.length > 1 ? val : '0' + val;
        }

        return '#' + hex(r) + hex(g) + hex(b);
      }

      /**
       * Returns the r, g, b values of the color. Each channel has a range from 0-255.
       *
       * @method toRgb
       * @return {Object} Object with r, g, b fields.
       */
      function toRgb() {
        return {
          r: r,
          g: g,
          b: b
        };
      }

      /**
       * Returns the h, s, v values of the color. Ranges: h=0-360, s=0-100, v=0-100.
       *
       * @method toHsv
       * @return {Object} Object with h, s, v fields.
       */
      function toHsv() {
        return rgb2hsv(r, g, b);
      }

      /**
       * Parses the specified value and populates the color instance.
       *
       * Supported format examples:
       *  * rbg(255,0,0)
       *  * #ff0000
       *  * #fff
       *  * {r: 255, g: 0, b: 0}
       *  * {h: 360, s: 100, v: 100}
       *
       * @method parse
       * @param {Object/String} value Color value to parse.
       * @return {tinymce.util.Color} Current color instance.
       */
      function parse(value) {
        var matches;

        if (typeof value == 'object') {
          if ("r" in value) {
            r = value.r;
            g = value.g;
            b = value.b;
          } else if ("v" in value) {
            hsvToRgb(value.h, value.s, value.v);
          }
        } else {
          if ((matches = /rgb\s*\(\s*([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)[^\)]*\)/gi.exec(value))) {
            r = parseInt(matches[1], 10);
            g = parseInt(matches[2], 10);
            b = parseInt(matches[3], 10);
          } else if ((matches = /#([0-F]{2})([0-F]{2})([0-F]{2})/gi.exec(value))) {
            r = parseInt(matches[1], 16);
            g = parseInt(matches[2], 16);
            b = parseInt(matches[3], 16);
          } else if ((matches = /#([0-F])([0-F])([0-F])/gi.exec(value))) {
            r = parseInt(matches[1] + matches[1], 16);
            g = parseInt(matches[2] + matches[2], 16);
            b = parseInt(matches[3] + matches[3], 16);
          }
        }

        r = r < 0 ? 0 : (r > 255 ? 255 : r);
        g = g < 0 ? 0 : (g > 255 ? 255 : g);
        b = b < 0 ? 0 : (b > 255 ? 255 : b);

        return self;
      }

      if (value) {
        parse(value);
      }

      self.toRgb = toRgb;
      self.toHsv = toHsv;
      self.toHex = toHex;
      self.parse = parse;
    }

    return Color;
  }
);

/**
 * Layout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Base layout manager class.
 *
 * @class tinymce.ui.Layout
 */
define(
  'tinymce.core.ui.Layout',
  [
    "tinymce.core.util.Class",
    "tinymce.core.util.Tools"
  ],
  function (Class, Tools) {
    "use strict";

    return Class.extend({
      Defaults: {
        firstControlClass: 'first',
        lastControlClass: 'last'
      },

      /**
       * Constructs a layout instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        this.settings = Tools.extend({}, this.Defaults, settings);
      },

      /**
       * This method gets invoked before the layout renders the controls.
       *
       * @method preRender
       * @param {tinymce.ui.Container} container Container instance to preRender.
       */
      preRender: function (container) {
        container.bodyClasses.add(this.settings.containerClass);
      },

      /**
       * Applies layout classes to the container.
       *
       * @private
       */
      applyClasses: function (items) {
        var self = this, settings = self.settings, firstClass, lastClass, firstItem, lastItem;

        firstClass = settings.firstControlClass;
        lastClass = settings.lastControlClass;

        items.each(function (item) {
          item.classes.remove(firstClass).remove(lastClass).add(settings.controlClass);

          if (item.visible()) {
            if (!firstItem) {
              firstItem = item;
            }

            lastItem = item;
          }
        });

        if (firstItem) {
          firstItem.classes.add(firstClass);
        }

        if (lastItem) {
          lastItem.classes.add(lastClass);
        }
      },

      /**
       * Renders the specified container and any layout specific HTML.
       *
       * @method renderHtml
       * @param {tinymce.ui.Container} container Container to render HTML for.
       */
      renderHtml: function (container) {
        var self = this, html = '';

        self.applyClasses(container.items());

        container.items().each(function (item) {
          html += item.renderHtml();
        });

        return html;
      },

      /**
       * Recalculates the positions of the controls in the specified container.
       *
       * @method recalc
       * @param {tinymce.ui.Container} container Container instance to recalc.
       */
      recalc: function () {
      },

      /**
       * This method gets invoked after the layout renders the controls.
       *
       * @method postRender
       * @param {tinymce.ui.Container} container Container instance to postRender.
       */
      postRender: function () {
      },

      isNative: function () {
        return false;
      }
    });
  }
);
/**
 * AbsoluteLayout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * LayoutManager for absolute positioning. This layout manager is more of
 * a base class for other layouts but can be created and used directly.
 *
 * @-x-less AbsoluteLayout.less
 * @class tinymce.ui.AbsoluteLayout
 * @extends tinymce.ui.Layout
 */
define(
  'tinymce.core.ui.AbsoluteLayout',
  [
    "tinymce.core.ui.Layout"
  ],
  function (Layout) {
    "use strict";

    return Layout.extend({
      Defaults: {
        containerClass: 'abs-layout',
        controlClass: 'abs-layout-item'
      },

      /**
       * Recalculates the positions of the controls in the specified container.
       *
       * @method recalc
       * @param {tinymce.ui.Container} container Container instance to recalc.
       */
      recalc: function (container) {
        container.items().filter(':visible').each(function (ctrl) {
          var settings = ctrl.settings;

          ctrl.layoutRect({
            x: settings.x,
            y: settings.y,
            w: settings.w,
            h: settings.h
          });

          if (ctrl.recalc) {
            ctrl.recalc();
          }
        });
      },

      /**
       * Renders the specified container and any layout specific HTML.
       *
       * @method renderHtml
       * @param {tinymce.ui.Container} container Container to render HTML for.
       */
      renderHtml: function (container) {
        return '<div id="' + container._id + '-absend" class="' + container.classPrefix + 'abs-end"></div>' + this._super(container);
      }
    });
  }
);
/**
 * Button.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is used to create buttons. You can create them directly or through the Factory.
 *
 * @example
 * // Create and render a button to the body element
 * tinymce.ui.Factory.create({
 *     type: 'button',
 *     text: 'My button'
 * }).renderTo(document.body);
 *
 * @-x-less Button.less
 * @class tinymce.ui.Button
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Button',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    return Widget.extend({
      Defaults: {
        classes: "widget btn",
        role: "button"
      },

      /**
       * Constructs a new button instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {String} size Size of the button small|medium|large.
       * @setting {String} image Image to use for icon.
       * @setting {String} icon Icon to use for button.
       */
      init: function (settings) {
        var self = this, size;

        self._super(settings);
        settings = self.settings;

        size = self.settings.size;

        self.on('click mousedown', function (e) {
          e.preventDefault();
        });

        self.on('touchstart', function (e) {
          self.fire('click', e);
          e.preventDefault();
        });

        if (settings.subtype) {
          self.classes.add(settings.subtype);
        }

        if (size) {
          self.classes.add('btn-' + size);
        }

        if (settings.icon) {
          self.icon(settings.icon);
        }
      },

      /**
       * Sets/gets the current button icon.
       *
       * @method icon
       * @param {String} [icon] New icon identifier.
       * @return {String|tinymce.ui.MenuButton} Current icon or current MenuButton instance.
       */
      icon: function (icon) {
        if (!arguments.length) {
          return this.state.get('icon');
        }

        this.state.set('icon', icon);

        return this;
      },

      /**
       * Repaints the button for example after it's been resizes by a layout engine.
       *
       * @method repaint
       */
      repaint: function () {
        var btnElm = this.getEl().firstChild,
          btnStyle;

        if (btnElm) {
          btnStyle = btnElm.style;
          btnStyle.width = btnStyle.height = "100%";
        }

        this._super();
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix;
        var icon = self.state.get('icon'), image, text = self.state.get('text'), textHtml = '';

        image = self.settings.image;
        if (image) {
          icon = 'none';

          // Support for [high dpi, low dpi] image sources
          if (typeof image != "string") {
            image = window.getSelection ? image[0] : image[1];
          }

          image = ' style="background-image: url(\'' + image + '\')"';
        } else {
          image = '';
        }

        if (text) {
          self.classes.add('btn-has-text');
          textHtml = '<span class="' + prefix + 'txt">' + self.encode(text) + '</span>';
        }

        icon = icon ? prefix + 'ico ' + prefix + 'i-' + icon : '';

        return (
          '<div id="' + id + '" class="' + self.classes + '" tabindex="-1">' +
          '<button role="presentation" type="button" tabindex="-1">' +
          (icon ? '<i class="' + icon + '"' + image + '></i>' : '') +
          textHtml +
          '</button>' +
          '</div>'
        );
      },

      bindStates: function () {
        var self = this, $ = self.$, textCls = self.classPrefix + 'txt';

        function setButtonText(text) {
          var $span = $('span.' + textCls, self.getEl());

          if (text) {
            if (!$span[0]) {
              $('button:first', self.getEl()).append('<span class="' + textCls + '"></span>');
              $span = $('span.' + textCls, self.getEl());
            }

            $span.html(self.encode(text));
          } else {
            $span.remove();
          }

          self.classes.toggle('btn-has-text', !!text);
        }

        self.state.on('change:text', function (e) {
          setButtonText(e.value);
        });

        self.state.on('change:icon', function (e) {
          var icon = e.value, prefix = self.classPrefix;

          self.settings.icon = icon;
          icon = icon ? prefix + 'ico ' + prefix + 'i-' + self.settings.icon : '';

          var btnElm = self.getEl().firstChild, iconElm = btnElm.getElementsByTagName('i')[0];

          if (icon) {
            if (!iconElm || iconElm != btnElm.firstChild) {
              iconElm = document.createElement('i');
              btnElm.insertBefore(iconElm, btnElm.firstChild);
            }

            iconElm.className = icon;
          } else if (iconElm) {
            btnElm.removeChild(iconElm);
          }

          setButtonText(self.state.get('text'));
        });

        return self._super();
      }
    });
  }
);

/**
 * ButtonGroup.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This control enables you to put multiple buttons into a group. This is
 * useful when you want to combine similar toolbar buttons into a group.
 *
 * @example
 * // Create and render a buttongroup with two buttons to the body element
 * tinymce.ui.Factory.create({
 *     type: 'buttongroup',
 *     items: [
 *         {text: 'Button A'},
 *         {text: 'Button B'}
 *     ]
 * }).renderTo(document.body);
 *
 * @-x-less ButtonGroup.less
 * @class tinymce.ui.ButtonGroup
 * @extends tinymce.ui.Container
 */
define(
  'tinymce.core.ui.ButtonGroup',
  [
    "tinymce.core.ui.Container"
  ],
  function (Container) {
    "use strict";

    return Container.extend({
      Defaults: {
        defaultType: 'button',
        role: 'group'
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout;

        self.classes.add('btn-group');
        self.preRender();
        layout.preRender(self);

        return (
          '<div id="' + self._id + '" class="' + self.classes + '">' +
          '<div id="' + self._id + '-body">' +
          (self.settings.html || '') + layout.renderHtml(self) +
          '</div>' +
          '</div>'
        );
      }
    });
  }
);
/**
 * Checkbox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This control creates a custom checkbox.
 *
 * @example
 * // Create and render a checkbox to the body element
 * tinymce.ui.Factory.create({
 *     type: 'checkbox',
 *     checked: true,
 *     text: 'My checkbox'
 * }).renderTo(document.body);
 *
 * @-x-less Checkbox.less
 * @class tinymce.ui.Checkbox
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Checkbox',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    return Widget.extend({
      Defaults: {
        classes: "checkbox",
        role: "checkbox",
        checked: false
      },

      /**
       * Constructs a new Checkbox instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Boolean} checked True if the checkbox should be checked by default.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);

        self.on('click mousedown', function (e) {
          e.preventDefault();
        });

        self.on('click', function (e) {
          e.preventDefault();

          if (!self.disabled()) {
            self.checked(!self.checked());
          }
        });

        self.checked(self.settings.checked);
      },

      /**
       * Getter/setter function for the checked state.
       *
       * @method checked
       * @param {Boolean} [state] State to be set.
       * @return {Boolean|tinymce.ui.Checkbox} True/false or checkbox if it's a set operation.
       */
      checked: function (state) {
        if (!arguments.length) {
          return this.state.get('checked');
        }

        this.state.set('checked', state);

        return this;
      },

      /**
       * Getter/setter function for the value state.
       *
       * @method value
       * @param {Boolean} [state] State to be set.
       * @return {Boolean|tinymce.ui.Checkbox} True/false or checkbox if it's a set operation.
       */
      value: function (state) {
        if (!arguments.length) {
          return this.checked();
        }

        return this.checked(state);
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix;

        return (
          '<div id="' + id + '" class="' + self.classes + '" unselectable="on" aria-labelledby="' + id + '-al" tabindex="-1">' +
          '<i class="' + prefix + 'ico ' + prefix + 'i-checkbox"></i>' +
          '<span id="' + id + '-al" class="' + prefix + 'label">' + self.encode(self.state.get('text')) + '</span>' +
          '</div>'
        );
      },

      bindStates: function () {
        var self = this;

        function checked(state) {
          self.classes.toggle("checked", state);
          self.aria('checked', state);
        }

        self.state.on('change:text', function (e) {
          self.getEl('al').firstChild.data = self.translate(e.value);
        });

        self.state.on('change:checked change:value', function (e) {
          self.fire('change');
          checked(e.value);
        });

        self.state.on('change:icon', function (e) {
          var icon = e.value, prefix = self.classPrefix;

          if (typeof icon == 'undefined') {
            return self.settings.icon;
          }

          self.settings.icon = icon;
          icon = icon ? prefix + 'ico ' + prefix + 'i-' + self.settings.icon : '';

          var btnElm = self.getEl().firstChild, iconElm = btnElm.getElementsByTagName('i')[0];

          if (icon) {
            if (!iconElm || iconElm != btnElm.firstChild) {
              iconElm = document.createElement('i');
              btnElm.insertBefore(iconElm, btnElm.firstChild);
            }

            iconElm.className = icon;
          } else if (iconElm) {
            btnElm.removeChild(iconElm);
          }
        });

        if (self.state.get('checked')) {
          checked(true);
        }

        return self._super();
      }
    });
  }
);
/**
 * ComboBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates a combobox control. Select box that you select a value from or
 * type a value into.
 *
 * @-x-less ComboBox.less
 * @class tinymce.ui.ComboBox
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.ComboBox',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.Factory",
    "tinymce.core.ui.DomUtils",
    "tinymce.core.dom.DomQuery",
    "tinymce.core.util.VK",
    "tinymce.core.util.Tools"
  ],
  function (Widget, Factory, DomUtils, $, VK, Tools) {
    "use strict";

    return Widget.extend({
      /**
       * Constructs a new control instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {String} placeholder Placeholder text to display.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        settings = self.settings;

        self.classes.add('combobox');
        self.subinput = true;
        self.ariaTarget = 'inp'; // TODO: Figure out a better way

        settings.menu = settings.menu || settings.values;

        if (settings.menu) {
          settings.icon = 'caret';
        }

        self.on('click', function (e) {
          var elm = e.target, root = self.getEl();

          if (!$.contains(root, elm) && elm != root) {
            return;
          }

          while (elm && elm != root) {
            if (elm.id && elm.id.indexOf('-open') != -1) {
              self.fire('action');

              if (settings.menu) {
                self.showMenu();

                if (e.aria) {
                  self.menu.items()[0].focus();
                }
              }
            }

            elm = elm.parentNode;
          }
        });

        // TODO: Rework this
        self.on('keydown', function (e) {
          var rootControl;

          if (e.keyCode == 13 && e.target.nodeName === 'INPUT') {
            e.preventDefault();

            // Find root control that we can do toJSON on
            self.parents().reverse().each(function (ctrl) {
              if (ctrl.toJSON) {
                rootControl = ctrl;
                return false;
              }
            });

            // Fire event on current text box with the serialized data of the whole form
            self.fire('submit', { data: rootControl.toJSON() });
          }
        });

        self.on('keyup', function (e) {
          if (e.target.nodeName == "INPUT") {
            var oldValue = self.state.get('value');
            var newValue = e.target.value;

            if (newValue !== oldValue) {
              self.state.set('value', newValue);
              self.fire('autocomplete', e);
            }
          }
        });

        self.on('mouseover', function (e) {
          var tooltip = self.tooltip().moveTo(-0xFFFF);

          if (self.statusLevel() && e.target.className.indexOf(self.classPrefix + 'status') !== -1) {
            var statusMessage = self.statusMessage() || 'Ok';
            var rel = tooltip.text(statusMessage).show().testMoveRel(e.target, ['bc-tc', 'bc-tl', 'bc-tr']);

            tooltip.classes.toggle('tooltip-n', rel == 'bc-tc');
            tooltip.classes.toggle('tooltip-nw', rel == 'bc-tl');
            tooltip.classes.toggle('tooltip-ne', rel == 'bc-tr');

            tooltip.moveRel(e.target, rel);
          }
        });
      },

      statusLevel: function (value) {
        if (arguments.length > 0) {
          this.state.set('statusLevel', value);
        }

        return this.state.get('statusLevel');
      },

      statusMessage: function (value) {
        if (arguments.length > 0) {
          this.state.set('statusMessage', value);
        }

        return this.state.get('statusMessage');
      },

      showMenu: function () {
        var self = this, settings = self.settings, menu;

        if (!self.menu) {
          menu = settings.menu || [];

          // Is menu array then auto constuct menu control
          if (menu.length) {
            menu = {
              type: 'menu',
              items: menu
            };
          } else {
            menu.type = menu.type || 'menu';
          }

          self.menu = Factory.create(menu).parent(self).renderTo(self.getContainerElm());
          self.fire('createmenu');
          self.menu.reflow();
          self.menu.on('cancel', function (e) {
            if (e.control === self.menu) {
              self.focus();
            }
          });

          self.menu.on('show hide', function (e) {
            e.control.items().each(function (ctrl) {
              ctrl.active(ctrl.value() == self.value());
            });
          }).fire('show');

          self.menu.on('select', function (e) {
            self.value(e.control.value());
          });

          self.on('focusin', function (e) {
            if (e.target.tagName.toUpperCase() == 'INPUT') {
              self.menu.hide();
            }
          });

          self.aria('expanded', true);
        }

        self.menu.show();
        self.menu.layoutRect({ w: self.layoutRect().w });
        self.menu.moveRel(self.getEl(), self.isRtl() ? ['br-tr', 'tr-br'] : ['bl-tl', 'tl-bl']);
      },

      /**
       * Focuses the input area of the control.
       *
       * @method focus
       */
      focus: function () {
        this.getEl('inp').focus();
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this, elm = self.getEl(), openElm = self.getEl('open'), rect = self.layoutRect();
        var width, lineHeight, innerPadding = 0, inputElm = elm.firstChild;

        if (self.statusLevel() && self.statusLevel() !== 'none') {
          innerPadding = (
            parseInt(DomUtils.getRuntimeStyle(inputElm, 'padding-right'), 10) -
            parseInt(DomUtils.getRuntimeStyle(inputElm, 'padding-left'), 10)
          );
        }

        if (openElm) {
          width = rect.w - DomUtils.getSize(openElm).width - 10;
        } else {
          width = rect.w - 10;
        }

        // Detect old IE 7+8 add lineHeight to align caret vertically in the middle
        var doc = document;
        if (doc.all && (!doc.documentMode || doc.documentMode <= 8)) {
          lineHeight = (self.layoutRect().h - 2) + 'px';
        }

        $(inputElm).css({
          width: width - innerPadding,
          lineHeight: lineHeight
        });

        self._super();

        return self;
      },

      /**
       * Post render method. Called after the control has been rendered to the target.
       *
       * @method postRender
       * @return {tinymce.ui.ComboBox} Current combobox instance.
       */
      postRender: function () {
        var self = this;

        $(this.getEl('inp')).on('change', function (e) {
          self.state.set('value', e.target.value);
          self.fire('change', e);
        });

        return self._super();
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, settings = self.settings, prefix = self.classPrefix;
        var value = self.state.get('value') || '';
        var icon, text, openBtnHtml = '', extraAttrs = '', statusHtml = '';

        if ("spellcheck" in settings) {
          extraAttrs += ' spellcheck="' + settings.spellcheck + '"';
        }

        if (settings.maxLength) {
          extraAttrs += ' maxlength="' + settings.maxLength + '"';
        }

        if (settings.size) {
          extraAttrs += ' size="' + settings.size + '"';
        }

        if (settings.subtype) {
          extraAttrs += ' type="' + settings.subtype + '"';
        }

        statusHtml = '<i id="' + id + '-status" class="mce-status mce-ico" style="display: none"></i>';

        if (self.disabled()) {
          extraAttrs += ' disabled="disabled"';
        }

        icon = settings.icon;
        if (icon && icon != 'caret') {
          icon = prefix + 'ico ' + prefix + 'i-' + settings.icon;
        }

        text = self.state.get('text');

        if (icon || text) {
          openBtnHtml = (
            '<div id="' + id + '-open" class="' + prefix + 'btn ' + prefix + 'open" tabIndex="-1" role="button">' +
            '<button id="' + id + '-action" type="button" hidefocus="1" tabindex="-1">' +
            (icon != 'caret' ? '<i class="' + icon + '"></i>' : '<i class="' + prefix + 'caret"></i>') +
            (text ? (icon ? ' ' : '') + text : '') +
            '</button>' +
            '</div>'
          );

          self.classes.add('has-open');
        }

        return (
          '<div id="' + id + '" class="' + self.classes + '">' +
          '<input id="' + id + '-inp" class="' + prefix + 'textbox" value="' +
          self.encode(value, false) + '" hidefocus="1"' + extraAttrs + ' placeholder="' +
          self.encode(settings.placeholder) + '" />' +
          statusHtml +
          openBtnHtml +
          '</div>'
        );
      },

      value: function (value) {
        if (arguments.length) {
          this.state.set('value', value);
          return this;
        }

        // Make sure the real state is in sync
        if (this.state.get('rendered')) {
          this.state.set('value', this.getEl('inp').value);
        }

        return this.state.get('value');
      },

      showAutoComplete: function (items, term) {
        var self = this;

        if (items.length === 0) {
          self.hideMenu();
          return;
        }

        var insert = function (value, title) {
          return function () {
            self.fire('selectitem', {
              title: title,
              value: value
            });
          };
        };

        if (self.menu) {
          self.menu.items().remove();
        } else {
          self.menu = Factory.create({
            type: 'menu',
            classes: 'combobox-menu',
            layout: 'flow'
          }).parent(self).renderTo();
        }

        Tools.each(items, function (item) {
          self.menu.add({
            text: item.title,
            url: item.previewUrl,
            match: term,
            classes: 'menu-item-ellipsis',
            onclick: insert(item.value, item.title)
          });
        });

        self.menu.renderNew();
        self.hideMenu();

        self.menu.on('cancel', function (e) {
          if (e.control.parent() === self.menu) {
            e.stopPropagation();
            self.focus();
            self.hideMenu();
          }
        });

        self.menu.on('select', function () {
          self.focus();
        });

        var maxW = self.layoutRect().w;
        self.menu.layoutRect({ w: maxW, minW: 0, maxW: maxW });
        self.menu.reflow();
        self.menu.show();
        self.menu.moveRel(self.getEl(), self.isRtl() ? ['br-tr', 'tr-br'] : ['bl-tl', 'tl-bl']);
      },

      hideMenu: function () {
        if (this.menu) {
          this.menu.hide();
        }
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:value', function (e) {
          if (self.getEl('inp').value != e.value) {
            self.getEl('inp').value = e.value;
          }
        });

        self.state.on('change:disabled', function (e) {
          self.getEl('inp').disabled = e.value;
        });

        self.state.on('change:statusLevel', function (e) {
          var statusIconElm = self.getEl('status');
          var prefix = self.classPrefix, value = e.value;

          DomUtils.css(statusIconElm, 'display', value === 'none' ? 'none' : '');
          DomUtils.toggleClass(statusIconElm, prefix + 'i-checkmark', value === 'ok');
          DomUtils.toggleClass(statusIconElm, prefix + 'i-warning', value === 'warn');
          DomUtils.toggleClass(statusIconElm, prefix + 'i-error', value === 'error');
          self.classes.toggle('has-status', value !== 'none');
          self.repaint();
        });

        DomUtils.on(self.getEl('status'), 'mouseleave', function () {
          self.tooltip().hide();
        });

        self.on('cancel', function (e) {
          if (self.menu && self.menu.visible()) {
            e.stopPropagation();
            self.hideMenu();
          }
        });

        var focusIdx = function (idx, menu) {
          if (menu && menu.items().length > 0) {
            menu.items().eq(idx)[0].focus();
          }
        };

        self.on('keydown', function (e) {
          var keyCode = e.keyCode;

          if (e.target.nodeName === 'INPUT') {
            if (keyCode === VK.DOWN) {
              e.preventDefault();
              self.fire('autocomplete');
              focusIdx(0, self.menu);
            } else if (keyCode === VK.UP) {
              e.preventDefault();
              focusIdx(-1, self.menu);
            }
          }
        });

        return self._super();
      },

      remove: function () {
        $(this.getEl('inp')).off();

        if (this.menu) {
          this.menu.remove();
        }

        this._super();
      }
    });
  }
);
/**
 * ColorBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This widget lets you enter colors and browse for colors by pressing the color button. It also displays
 * a preview of the current color.
 *
 * @-x-less ColorBox.less
 * @class tinymce.ui.ColorBox
 * @extends tinymce.ui.ComboBox
 */
define(
  'tinymce.core.ui.ColorBox',
  [
    "tinymce.core.ui.ComboBox"
  ],
  function (ComboBox) {
    "use strict";

    return ComboBox.extend({
      /**
       * Constructs a new control instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        var self = this;

        settings.spellcheck = false;

        if (settings.onaction) {
          settings.icon = 'none';
        }

        self._super(settings);

        self.classes.add('colorbox');
        self.on('change keyup postrender', function () {
          self.repaintColor(self.value());
        });
      },

      repaintColor: function (value) {
        var openElm = this.getEl('open');
        var elm = openElm ? openElm.getElementsByTagName('i')[0] : null;

        if (elm) {
          try {
            elm.style.background = value;
          } catch (ex) {
            // Ignore
          }
        }
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:value', function (e) {
          if (self.state.get('rendered')) {
            self.repaintColor(e.value);
          }
        });

        return self._super();
      }
    });
  }
);
/**
 * PanelButton.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new panel button.
 *
 * @class tinymce.ui.PanelButton
 * @extends tinymce.ui.Button
 */
define(
  'tinymce.core.ui.PanelButton',
  [
    "tinymce.core.ui.Button",
    "tinymce.core.ui.FloatPanel"
  ],
  function (Button, FloatPanel) {
    "use strict";

    return Button.extend({
      /**
       * Shows the panel for the button.
       *
       * @method showPanel
       */
      showPanel: function () {
        var self = this, settings = self.settings;

        self.active(true);

        if (!self.panel) {
          var panelSettings = settings.panel;

          // Wrap panel in grid layout if type if specified
          // This makes it possible to add forms or other containers directly in the panel option
          if (panelSettings.type) {
            panelSettings = {
              layout: 'grid',
              items: panelSettings
            };
          }

          panelSettings.role = panelSettings.role || 'dialog';
          panelSettings.popover = true;
          panelSettings.autohide = true;
          panelSettings.ariaRoot = true;

          self.panel = new FloatPanel(panelSettings).on('hide', function () {
            self.active(false);
          }).on('cancel', function (e) {
            e.stopPropagation();
            self.focus();
            self.hidePanel();
          }).parent(self).renderTo(self.getContainerElm());

          self.panel.fire('show');
          self.panel.reflow();
        } else {
          self.panel.show();
        }

        self.panel.moveRel(self.getEl(), settings.popoverAlign || (self.isRtl() ? ['bc-tr', 'bc-tc'] : ['bc-tl', 'bc-tc']));
      },

      /**
       * Hides the panel for the button.
       *
       * @method hidePanel
       */
      hidePanel: function () {
        var self = this;

        if (self.panel) {
          self.panel.hide();
        }
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this;

        self.aria('haspopup', true);

        self.on('click', function (e) {
          if (e.control === self) {
            if (self.panel && self.panel.visible()) {
              self.hidePanel();
            } else {
              self.showPanel();
              self.panel.focus(!!e.aria);
            }
          }
        });

        return self._super();
      },

      remove: function () {
        if (this.panel) {
          this.panel.remove();
          this.panel = null;
        }

        return this._super();
      }
    });
  }
);
/**
 * ColorButton.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates a color button control. This is a split button in which the main
 * button has a visual representation of the currently selected color. When clicked
 * the caret button displays a color picker, allowing the user to select a new color.
 *
 * @-x-less ColorButton.less
 * @class tinymce.ui.ColorButton
 * @extends tinymce.ui.PanelButton
 */
define(
  'tinymce.core.ui.ColorButton',
  [
    "tinymce.core.ui.PanelButton",
    "tinymce.core.dom.DOMUtils"
  ],
  function (PanelButton, DomUtils) {
    "use strict";

    var DOM = DomUtils.DOM;

    return PanelButton.extend({
      /**
       * Constructs a new ColorButton instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        this._super(settings);
        this.classes.add('colorbutton');
      },

      /**
       * Getter/setter for the current color.
       *
       * @method color
       * @param {String} [color] Color to set.
       * @return {String|tinymce.ui.ColorButton} Current color or current instance.
       */
      color: function (color) {
        if (color) {
          this._color = color;
          this.getEl('preview').style.backgroundColor = color;
          return this;
        }

        return this._color;
      },

      /**
       * Resets the current color.
       *
       * @method resetColor
       * @return {tinymce.ui.ColorButton} Current instance.
       */
      resetColor: function () {
        this._color = null;
        this.getEl('preview').style.backgroundColor = null;
        return this;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix, text = self.state.get('text');
        var icon = self.settings.icon ? prefix + 'ico ' + prefix + 'i-' + self.settings.icon : '';
        var image = self.settings.image ? ' style="background-image: url(\'' + self.settings.image + '\')"' : '',
          textHtml = '';

        if (text) {
          self.classes.add('btn-has-text');
          textHtml = '<span class="' + prefix + 'txt">' + self.encode(text) + '</span>';
        }

        return (
          '<div id="' + id + '" class="' + self.classes + '" role="button" tabindex="-1" aria-haspopup="true">' +
          '<button role="presentation" hidefocus="1" type="button" tabindex="-1">' +
          (icon ? '<i class="' + icon + '"' + image + '></i>' : '') +
          '<span id="' + id + '-preview" class="' + prefix + 'preview"></span>' +
          textHtml +
          '</button>' +
          '<button type="button" class="' + prefix + 'open" hidefocus="1" tabindex="-1">' +
          ' <i class="' + prefix + 'caret"></i>' +
          '</button>' +
          '</div>'
        );
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this, onClickHandler = self.settings.onclick;

        self.on('click', function (e) {
          if (e.aria && e.aria.key == 'down') {
            return;
          }

          if (e.control == self && !DOM.getParent(e.target, '.' + self.classPrefix + 'open')) {
            e.stopImmediatePropagation();
            onClickHandler.call(self, e);
          }
        });

        delete self.settings.onclick;

        return self._super();
      }
    });
  }
);

/**
 * ColorPicker.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Color picker widget lets you select colors.
 *
 * @-x-less ColorPicker.less
 * @class tinymce.ui.ColorPicker
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.ColorPicker',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.DragHelper",
    "tinymce.core.ui.DomUtils",
    "tinymce.core.util.Color"
  ],
  function (Widget, DragHelper, DomUtils, Color) {
    "use strict";

    return Widget.extend({
      Defaults: {
        classes: "widget colorpicker"
      },

      /**
       * Constructs a new colorpicker instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {String} color Initial color value.
       */
      init: function (settings) {
        this._super(settings);
      },

      postRender: function () {
        var self = this, color = self.color(), hsv, hueRootElm, huePointElm, svRootElm, svPointElm;

        hueRootElm = self.getEl('h');
        huePointElm = self.getEl('hp');
        svRootElm = self.getEl('sv');
        svPointElm = self.getEl('svp');

        function getPos(elm, event) {
          var pos = DomUtils.getPos(elm), x, y;

          x = event.pageX - pos.x;
          y = event.pageY - pos.y;

          x = Math.max(0, Math.min(x / elm.clientWidth, 1));
          y = Math.max(0, Math.min(y / elm.clientHeight, 1));

          return {
            x: x,
            y: y
          };
        }

        function updateColor(hsv, hueUpdate) {
          var hue = (360 - hsv.h) / 360;

          DomUtils.css(huePointElm, {
            top: (hue * 100) + '%'
          });

          if (!hueUpdate) {
            DomUtils.css(svPointElm, {
              left: hsv.s + '%',
              top: (100 - hsv.v) + '%'
            });
          }

          svRootElm.style.background = new Color({ s: 100, v: 100, h: hsv.h }).toHex();
          self.color().parse({ s: hsv.s, v: hsv.v, h: hsv.h });
        }

        function updateSaturationAndValue(e) {
          var pos;

          pos = getPos(svRootElm, e);
          hsv.s = pos.x * 100;
          hsv.v = (1 - pos.y) * 100;

          updateColor(hsv);
          self.fire('change');
        }

        function updateHue(e) {
          var pos;

          pos = getPos(hueRootElm, e);
          hsv = color.toHsv();
          hsv.h = (1 - pos.y) * 360;
          updateColor(hsv, true);
          self.fire('change');
        }

        self._repaint = function () {
          hsv = color.toHsv();
          updateColor(hsv);
        };

        self._super();

        self._svdraghelper = new DragHelper(self._id + '-sv', {
          start: updateSaturationAndValue,
          drag: updateSaturationAndValue
        });

        self._hdraghelper = new DragHelper(self._id + '-h', {
          start: updateHue,
          drag: updateHue
        });

        self._repaint();
      },

      rgb: function () {
        return this.color().toRgb();
      },

      value: function (value) {
        var self = this;

        if (arguments.length) {
          self.color().parse(value);

          if (self._rendered) {
            self._repaint();
          }
        } else {
          return self.color().toHex();
        }
      },

      color: function () {
        if (!this._color) {
          this._color = new Color();
        }

        return this._color;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix, hueHtml;
        var stops = '#ff0000,#ff0080,#ff00ff,#8000ff,#0000ff,#0080ff,#00ffff,#00ff80,#00ff00,#80ff00,#ffff00,#ff8000,#ff0000';

        function getOldIeFallbackHtml() {
          var i, l, html = '', gradientPrefix, stopsList;

          gradientPrefix = 'filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=';
          stopsList = stops.split(',');
          for (i = 0, l = stopsList.length - 1; i < l; i++) {
            html += (
              '<div class="' + prefix + 'colorpicker-h-chunk" style="' +
              'height:' + (100 / l) + '%;' +
              gradientPrefix + stopsList[i] + ',endColorstr=' + stopsList[i + 1] + ');' +
              '-ms-' + gradientPrefix + stopsList[i] + ',endColorstr=' + stopsList[i + 1] + ')' +
              '"></div>'
            );
          }

          return html;
        }

        var gradientCssText = (
          'background: -ms-linear-gradient(top,' + stops + ');' +
          'background: linear-gradient(to bottom,' + stops + ');'
        );

        hueHtml = (
          '<div id="' + id + '-h" class="' + prefix + 'colorpicker-h" style="' + gradientCssText + '">' +
          getOldIeFallbackHtml() +
          '<div id="' + id + '-hp" class="' + prefix + 'colorpicker-h-marker"></div>' +
          '</div>'
        );

        return (
          '<div id="' + id + '" class="' + self.classes + '">' +
          '<div id="' + id + '-sv" class="' + prefix + 'colorpicker-sv">' +
          '<div class="' + prefix + 'colorpicker-overlay1">' +
          '<div class="' + prefix + 'colorpicker-overlay2">' +
          '<div id="' + id + '-svp" class="' + prefix + 'colorpicker-selector1">' +
          '<div class="' + prefix + 'colorpicker-selector2"></div>' +
          '</div>' +
          '</div>' +
          '</div>' +
          '</div>' +
          hueHtml +
          '</div>'
        );
      }
    });
  }
);
/**
 * Path.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new path control.
 *
 * @-x-less Path.less
 * @class tinymce.ui.Path
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Path',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    return Widget.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {String} delimiter Delimiter to display between row in path.
       */
      init: function (settings) {
        var self = this;

        if (!settings.delimiter) {
          settings.delimiter = '\u00BB';
        }

        self._super(settings);
        self.classes.add('path');
        self.canFocus = true;

        self.on('click', function (e) {
          var index, target = e.target;

          if ((index = target.getAttribute('data-index'))) {
            self.fire('select', { value: self.row()[index], index: index });
          }
        });

        self.row(self.settings.row);
      },

      /**
       * Focuses the current control.
       *
       * @method focus
       * @return {tinymce.ui.Control} Current control instance.
       */
      focus: function () {
        var self = this;

        self.getEl().firstChild.focus();

        return self;
      },

      /**
       * Sets/gets the data to be used for the path.
       *
       * @method row
       * @param {Array} row Array with row name is rendered to path.
       */
      row: function (row) {
        if (!arguments.length) {
          return this.state.get('row');
        }

        this.state.set('row', row);

        return this;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this;

        return (
          '<div id="' + self._id + '" class="' + self.classes + '">' +
          self._getDataPathHtml(self.state.get('row')) +
          '</div>'
        );
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:row', function (e) {
          self.innerHtml(self._getDataPathHtml(e.value));
        });

        return self._super();
      },

      _getDataPathHtml: function (data) {
        var self = this, parts = data || [], i, l, html = '', prefix = self.classPrefix;

        for (i = 0, l = parts.length; i < l; i++) {
          html += (
            (i > 0 ? '<div class="' + prefix + 'divider" aria-hidden="true"> ' + self.settings.delimiter + ' </div>' : '') +
            '<div role="button" class="' + prefix + 'path-item' + (i == l - 1 ? ' ' + prefix + 'last' : '') + '" data-index="' +
            i + '" tabindex="-1" id="' + self._id + '-' + i + '" aria-level="' + (i + 1) + '">' + parts[i].name + '</div>'
          );
        }

        if (!html) {
          html = '<div class="' + prefix + 'path-item">\u00a0</div>';
        }

        return html;
      }
    });
  }
);

/**
 * ElementPath.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This control creates an path for the current selections parent elements in TinyMCE.
 *
 * @class tinymce.ui.ElementPath
 * @extends tinymce.ui.Path
 */
define(
  'tinymce.core.ui.ElementPath',
  [
    "tinymce.core.ui.Path"
  ],
  function (Path) {
    return Path.extend({
      /**
       * Post render method. Called after the control has been rendered to the target.
       *
       * @method postRender
       * @return {tinymce.ui.ElementPath} Current combobox instance.
       */
      postRender: function () {
        var self = this, editor = self.settings.editor;

        function isHidden(elm) {
          if (elm.nodeType === 1) {
            if (elm.nodeName == "BR" || !!elm.getAttribute('data-mce-bogus')) {
              return true;
            }

            if (elm.getAttribute('data-mce-type') === 'bookmark') {
              return true;
            }
          }

          return false;
        }

        if (editor.settings.elementpath !== false) {
          self.on('select', function (e) {
            editor.focus();
            editor.selection.select(this.row()[e.index].element);
            editor.nodeChanged();
          });

          editor.on('nodeChange', function (e) {
            var outParents = [], parents = e.parents, i = parents.length;

            while (i--) {
              if (parents[i].nodeType == 1 && !isHidden(parents[i])) {
                var args = editor.fire('ResolveName', {
                  name: parents[i].nodeName.toLowerCase(),
                  target: parents[i]
                });

                if (!args.isDefaultPrevented()) {
                  outParents.push({ name: args.name, element: parents[i] });
                }

                if (args.isPropagationStopped()) {
                  break;
                }
              }
            }

            self.row(outParents);
          });
        }

        return self._super();
      }
    });
  }
);
/**
 * FormItem.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class is a container created by the form element with
 * a label and control item.
 *
 * @class tinymce.ui.FormItem
 * @extends tinymce.ui.Container
 * @setting {String} label Label to display for the form item.
 */
define(
  'tinymce.core.ui.FormItem',
  [
    "tinymce.core.ui.Container"
  ],
  function (Container) {
    "use strict";

    return Container.extend({
      Defaults: {
        layout: 'flex',
        align: 'center',
        defaults: {
          flex: 1
        }
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout, prefix = self.classPrefix;

        self.classes.add('formitem');
        layout.preRender(self);

        return (
          '<div id="' + self._id + '" class="' + self.classes + '" hidefocus="1" tabindex="-1">' +
          (self.settings.title ? ('<div id="' + self._id + '-title" class="' + prefix + 'title">' +
            self.settings.title + '</div>') : '') +
          '<div id="' + self._id + '-body" class="' + self.bodyClasses + '">' +
          (self.settings.html || '') + layout.renderHtml(self) +
          '</div>' +
          '</div>'
        );
      }
    });
  }
);
/**
 * Form.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates a form container. A form container has the ability
 * to automatically wrap items in tinymce.ui.FormItem instances.
 *
 * Each FormItem instance is a container for the label and the item.
 *
 * @example
 * tinymce.ui.Factory.create({
 *     type: 'form',
 *     items: [
 *         {type: 'textbox', label: 'My text box'}
 *     ]
 * }).renderTo(document.body);
 *
 * @class tinymce.ui.Form
 * @extends tinymce.ui.Container
 */
define(
  'tinymce.core.ui.Form',
  [
    "tinymce.core.ui.Container",
    "tinymce.core.ui.FormItem",
    "tinymce.core.util.Tools"
  ],
  function (Container, FormItem, Tools) {
    "use strict";

    return Container.extend({
      Defaults: {
        containerCls: 'form',
        layout: 'flex',
        direction: 'column',
        align: 'stretch',
        flex: 1,
        padding: 20,
        labelGap: 30,
        spacing: 10,
        callbacks: {
          submit: function () {
            this.submit();
          }
        }
      },

      /**
       * This method gets invoked before the control is rendered.
       *
       * @method preRender
       */
      preRender: function () {
        var self = this, items = self.items();

        if (!self.settings.formItemDefaults) {
          self.settings.formItemDefaults = {
            layout: 'flex',
            autoResize: "overflow",
            defaults: { flex: 1 }
          };
        }

        // Wrap any labeled items in FormItems
        items.each(function (ctrl) {
          var formItem, label = ctrl.settings.label;

          if (label) {
            formItem = new FormItem(Tools.extend({
              items: {
                type: 'label',
                id: ctrl._id + '-l',
                text: label,
                flex: 0,
                forId: ctrl._id,
                disabled: ctrl.disabled()
              }
            }, self.settings.formItemDefaults));

            formItem.type = 'formitem';
            ctrl.aria('labelledby', ctrl._id + '-l');

            if (typeof ctrl.settings.flex == "undefined") {
              ctrl.settings.flex = 1;
            }

            self.replace(ctrl, formItem);
            formItem.add(ctrl);
          }
        });
      },

      /**
       * Fires a submit event with the serialized form.
       *
       * @method submit
       * @return {Object} Event arguments object.
       */
      submit: function () {
        return this.fire('submit', { data: this.toJSON() });
      },

      /**
       * Post render method. Called after the control has been rendered to the target.
       *
       * @method postRender
       * @return {tinymce.ui.ComboBox} Current combobox instance.
       */
      postRender: function () {
        var self = this;

        self._super();
        self.fromJSON(self.settings.data);
      },

      bindStates: function () {
        var self = this;

        self._super();

        function recalcLabels() {
          var maxLabelWidth = 0, labels = [], i, labelGap, items;

          if (self.settings.labelGapCalc === false) {
            return;
          }

          if (self.settings.labelGapCalc == "children") {
            items = self.find('formitem');
          } else {
            items = self.items();
          }

          items.filter('formitem').each(function (item) {
            var labelCtrl = item.items()[0], labelWidth = labelCtrl.getEl().clientWidth;

            maxLabelWidth = labelWidth > maxLabelWidth ? labelWidth : maxLabelWidth;
            labels.push(labelCtrl);
          });

          labelGap = self.settings.labelGap || 0;

          i = labels.length;
          while (i--) {
            labels[i].settings.minWidth = maxLabelWidth + labelGap;
          }
        }

        self.on('show', recalcLabels);
        recalcLabels();
      }
    });
  }
);
/**
 * FieldSet.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates fieldset containers.
 *
 * @-x-less FieldSet.less
 * @class tinymce.ui.FieldSet
 * @extends tinymce.ui.Form
 */
define(
  'tinymce.core.ui.FieldSet',
  [
    "tinymce.core.ui.Form"
  ],
  function (Form) {
    "use strict";

    return Form.extend({
      Defaults: {
        containerCls: 'fieldset',
        layout: 'flex',
        direction: 'column',
        align: 'stretch',
        flex: 1,
        padding: "25 15 5 15",
        labelGap: 30,
        spacing: 10,
        border: 1
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout, prefix = self.classPrefix;

        self.preRender();
        layout.preRender(self);

        return (
          '<fieldset id="' + self._id + '" class="' + self.classes + '" hidefocus="1" tabindex="-1">' +
          (self.settings.title ? ('<legend id="' + self._id + '-title" class="' + prefix + 'fieldset-title">' +
            self.settings.title + '</legend>') : '') +
          '<div id="' + self._id + '-body" class="' + self.bodyClasses + '">' +
          (self.settings.html || '') + layout.renderHtml(self) +
          '</div>' +
          '</fieldset>'
        );
      }
    });
  }
);
/**
 * LinkTargets.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This module is enables you to get anything that you can link to in a element.
 *
 * @private
 * @class tinymce.content.LinkTargets
 */
define(
  'tinymce.core.content.LinkTargets',
  [
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.dom.NodeType',
    'tinymce.core.util.Arr',
    'tinymce.core.util.Fun',
    'tinymce.core.util.Tools',
    'tinymce.core.util.Uuid'
  ],
  function (DOMUtils, NodeType, Arr, Fun, Tools, Uuid) {
    var trim = Tools.trim;

    var create = function (type, title, url, level, attach) {
      return {
        type: type,
        title: title,
        url: url,
        level: level,
        attach: attach
      };
    };

    var isChildOfContentEditableTrue = function (node) {
      while ((node = node.parentNode)) {
        var value = node.contentEditable;
        if (value && value !== 'inherit') {
          return NodeType.isContentEditableTrue(node);
        }
      }

      return false;
    };

    var select = function (selector, root) {
      return DOMUtils.DOM.select(selector, root);
    };

    var getElementText = function (elm) {
      return elm.innerText || elm.textContent;
    };

    var getOrGenerateId = function (elm) {
      return elm.id ? elm.id : Uuid.uuid('h');
    };

    var isAnchor = function (elm) {
      return elm && elm.nodeName === 'A' && (elm.id || elm.name);
    };

    var isValidAnchor = function (elm) {
      return isAnchor(elm) && isEditable(elm);
    };

    var isHeader = function (elm) {
      return elm && /^(H[1-6])$/.test(elm.nodeName);
    };

    var isEditable = function (elm) {
      return isChildOfContentEditableTrue(elm) && !NodeType.isContentEditableFalse(elm);
    };

    var isValidHeader = function (elm) {
      return isHeader(elm) && isEditable(elm);
    };

    var getLevel = function (elm) {
      return isHeader(elm) ? parseInt(elm.nodeName.substr(1), 10) : 0;
    };

    var headerTarget = function (elm) {
      var headerId = getOrGenerateId(elm);

      var attach = function () {
        elm.id = headerId;
      };

      return create('header', getElementText(elm), '#' + headerId, getLevel(elm), attach);
    };

    var anchorTarget = function (elm) {
      var anchorId = elm.id || elm.name;
      var anchorText = getElementText(elm);

      return create('anchor', anchorText ? anchorText : '#' + anchorId, '#' + anchorId, 0, Fun.noop);
    };

    var getHeaderTargets = function (elms) {
      return Arr.map(Arr.filter(elms, isValidHeader), headerTarget);
    };

    var getAnchorTargets = function (elms) {
      return Arr.map(Arr.filter(elms, isValidAnchor), anchorTarget);
    };

    var getTargetElements = function (elm) {
      var elms = select('h1,h2,h3,h4,h5,h6,a:not([href])', elm);
      return elms;
    };

    var hasTitle = function (target) {
      return trim(target.title).length > 0;
    };

    var find = function (elm) {
      var elms = getTargetElements(elm);
      return Arr.filter(getHeaderTargets(elms).concat(getAnchorTargets(elms)), hasTitle);
    };

    return {
      find: find
    };
  }
);

/**
 * FilePicker.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates a file picker control.
 *
 * @class tinymce.ui.FilePicker
 * @extends tinymce.ui.ComboBox
 */
define(
  'tinymce.core.ui.FilePicker',
  [
    'global!window',
    'tinymce.core.content.LinkTargets',
    'tinymce.core.EditorManager',
    'tinymce.core.ui.ComboBox',
    'tinymce.core.util.Arr',
    'tinymce.core.util.Fun',
    'tinymce.core.util.Tools'
  ],
  function (window, LinkTargets, EditorManager, ComboBox, Arr, Fun, Tools) {
    "use strict";

    var getActiveEditor = function () {
      return window.tinymce ? window.tinymce.activeEditor : EditorManager.activeEditor;
    };

    var history = {};
    var HISTORY_LENGTH = 5;

    var toMenuItem = function (target) {
      return {
        title: target.title,
        value: {
          title: { raw: target.title },
          url: target.url,
          attach: target.attach
        }
      };
    };

    var toMenuItems = function (targets) {
      return Tools.map(targets, toMenuItem);
    };

    var staticMenuItem = function (title, url) {
      return {
        title: title,
        value: {
          title: title,
          url: url,
          attach: Fun.noop
        }
      };
    };

    var isUniqueUrl = function (url, targets) {
      var foundTarget = Arr.find(targets, function (target) {
        return target.url === url;
      });

      return !foundTarget;
    };

    var getSetting = function (editorSettings, name, defaultValue) {
      var value = name in editorSettings ? editorSettings[name] : defaultValue;
      return value === false ? null : value;
    };

    var createMenuItems = function (term, targets, fileType, editorSettings) {
      var separator = { title: '-' };

      var fromHistoryMenuItems = function (history) {
        var uniqueHistory = Arr.filter(history[fileType], function (url) {
          return isUniqueUrl(url, targets);
        });

        return Tools.map(uniqueHistory, function (url) {
          return {
            title: url,
            value: {
              title: url,
              url: url,
              attach: Fun.noop
            }
          };
        });
      };

      var fromMenuItems = function (type) {
        var filteredTargets = Arr.filter(targets, function (target) {
          return target.type == type;
        });

        return toMenuItems(filteredTargets);
      };

      var anchorMenuItems = function () {
        var anchorMenuItems = fromMenuItems('anchor');
        var topAnchor = getSetting(editorSettings, 'anchor_top', '#top');
        var bottomAchor = getSetting(editorSettings, 'anchor_bottom', '#bottom');

        if (topAnchor !== null) {
          anchorMenuItems.unshift(staticMenuItem('<top>', topAnchor));
        }

        if (bottomAchor !== null) {
          anchorMenuItems.push(staticMenuItem('<bottom>', bottomAchor));
        }

        return anchorMenuItems;
      };

      var join = function (items) {
        return Arr.reduce(items, function (a, b) {
          var bothEmpty = a.length === 0 || b.length === 0;
          return bothEmpty ? a.concat(b) : a.concat(separator, b);
        }, []);
      };

      if (editorSettings.typeahead_urls === false) {
        return [];
      }

      return fileType === 'file' ? join([
        filterByQuery(term, fromHistoryMenuItems(history)),
        filterByQuery(term, fromMenuItems('header')),
        filterByQuery(term, anchorMenuItems())
      ]) : filterByQuery(term, fromHistoryMenuItems(history));
    };

    var addToHistory = function (url, fileType) {
      var items = history[fileType];

      if (!/^https?/.test(url)) {
        return;
      }

      if (items) {
        if (Arr.indexOf(items, url) === -1) {
          history[fileType] = items.slice(0, HISTORY_LENGTH).concat(url);
        }
      } else {
        history[fileType] = [url];
      }
    };

    var filterByQuery = function (term, menuItems) {
      var lowerCaseTerm = term.toLowerCase();
      var result = Tools.grep(menuItems, function (item) {
        return item.title.toLowerCase().indexOf(lowerCaseTerm) !== -1;
      });

      return result.length === 1 && result[0].title === term ? [] : result;
    };

    var getTitle = function (linkDetails) {
      var title = linkDetails.title;
      return title.raw ? title.raw : title;
    };

    var setupAutoCompleteHandler = function (ctrl, editorSettings, bodyElm, fileType) {
      var autocomplete = function (term) {
        var linkTargets = LinkTargets.find(bodyElm);
        var menuItems = createMenuItems(term, linkTargets, fileType, editorSettings);
        ctrl.showAutoComplete(menuItems, term);
      };

      ctrl.on('autocomplete', function () {
        autocomplete(ctrl.value());
      });

      ctrl.on('selectitem', function (e) {
        var linkDetails = e.value;

        ctrl.value(linkDetails.url);
        var title = getTitle(linkDetails);

        if (fileType === 'image') {
          ctrl.fire('change', { meta: { alt: title, attach: linkDetails.attach } });
        } else {
          ctrl.fire('change', { meta: { text: title, attach: linkDetails.attach } });
        }

        ctrl.focus();
      });

      ctrl.on('click', function (e) {
        if (ctrl.value().length === 0 && e.target.nodeName === 'INPUT') {
          autocomplete('');
        }
      });

      ctrl.on('PostRender', function () {
        ctrl.getRoot().on('submit', function (e) {
          if (!e.isDefaultPrevented()) {
            addToHistory(ctrl.value(), fileType);
          }
        });
      });
    };

    var statusToUiState = function (result) {
      var status = result.status, message = result.message;

      if (status === 'valid') {
        return { status: 'ok', message: message };
      } else if (status === 'unknown') {
        return { status: 'warn', message: message };
      } else if (status === 'invalid') {
        return { status: 'warn', message: message };
      } else {
        return { status: 'none', message: '' };
      }
    };

    var setupLinkValidatorHandler = function (ctrl, editorSettings, fileType) {
      var validatorHandler = editorSettings.filepicker_validator_handler;
      if (validatorHandler) {
        var validateUrl = function (url) {
          if (url.length === 0) {
            ctrl.statusLevel('none');
            return;
          }

          validatorHandler({
            url: url,
            type: fileType
          }, function (result) {
            var uiState = statusToUiState(result);

            ctrl.statusMessage(uiState.message);
            ctrl.statusLevel(uiState.status);
          });
        };

        ctrl.state.on('change:value', function (e) {
          validateUrl(e.value);
        });
      }
    };

    return ComboBox.extend({
      /**
       * Constructs a new control instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        var self = this, editor = getActiveEditor(), editorSettings = editor.settings;
        var actionCallback, fileBrowserCallback, fileBrowserCallbackTypes;
        var fileType = settings.filetype;

        settings.spellcheck = false;

        fileBrowserCallbackTypes = editorSettings.file_picker_types || editorSettings.file_browser_callback_types;
        if (fileBrowserCallbackTypes) {
          fileBrowserCallbackTypes = Tools.makeMap(fileBrowserCallbackTypes, /[, ]/);
        }

        if (!fileBrowserCallbackTypes || fileBrowserCallbackTypes[fileType]) {
          fileBrowserCallback = editorSettings.file_picker_callback;
          if (fileBrowserCallback && (!fileBrowserCallbackTypes || fileBrowserCallbackTypes[fileType])) {
            actionCallback = function () {
              var meta = self.fire('beforecall').meta;

              meta = Tools.extend({ filetype: fileType }, meta);

              // file_picker_callback(callback, currentValue, metaData)
              fileBrowserCallback.call(
                editor,
                function (value, meta) {
                  self.value(value).fire('change', { meta: meta });
                },
                self.value(),
                meta
              );
            };
          } else {
            // Legacy callback: file_picker_callback(id, currentValue, filetype, window)
            fileBrowserCallback = editorSettings.file_browser_callback;
            if (fileBrowserCallback && (!fileBrowserCallbackTypes || fileBrowserCallbackTypes[fileType])) {
              actionCallback = function () {
                fileBrowserCallback(
                  self.getEl('inp').id,
                  self.value(),
                  fileType,
                  window
                );
              };
            }
          }
        }

        if (actionCallback) {
          settings.icon = 'browse';
          settings.onaction = actionCallback;
        }

        self._super(settings);

        setupAutoCompleteHandler(self, editorSettings, editor.getBody(), fileType);
        setupLinkValidatorHandler(self, editorSettings, fileType);
      }
    });
  }
);
/**
 * FitLayout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This layout manager will resize the control to be the size of it's parent container.
 * In other words width: 100% and height: 100%.
 *
 * @-x-less FitLayout.less
 * @class tinymce.ui.FitLayout
 * @extends tinymce.ui.AbsoluteLayout
 */
define(
  'tinymce.core.ui.FitLayout',
  [
    "tinymce.core.ui.AbsoluteLayout"
  ],
  function (AbsoluteLayout) {
    "use strict";

    return AbsoluteLayout.extend({
      /**
       * Recalculates the positions of the controls in the specified container.
       *
       * @method recalc
       * @param {tinymce.ui.Container} container Container instance to recalc.
       */
      recalc: function (container) {
        var contLayoutRect = container.layoutRect(), paddingBox = container.paddingBox;

        container.items().filter(':visible').each(function (ctrl) {
          ctrl.layoutRect({
            x: paddingBox.left,
            y: paddingBox.top,
            w: contLayoutRect.innerW - paddingBox.right - paddingBox.left,
            h: contLayoutRect.innerH - paddingBox.top - paddingBox.bottom
          });

          if (ctrl.recalc) {
            ctrl.recalc();
          }
        });
      }
    });
  }
);
/**
 * FlexLayout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This layout manager works similar to the CSS flex box.
 *
 * @setting {String} direction row|row-reverse|column|column-reverse
 * @setting {Number} flex A positive-number to flex by.
 * @setting {String} align start|end|center|stretch
 * @setting {String} pack start|end|justify
 *
 * @class tinymce.ui.FlexLayout
 * @extends tinymce.ui.AbsoluteLayout
 */
define(
  'tinymce.core.ui.FlexLayout',
  [
    "tinymce.core.ui.AbsoluteLayout"
  ],
  function (AbsoluteLayout) {
    "use strict";

    return AbsoluteLayout.extend({
      /**
       * Recalculates the positions of the controls in the specified container.
       *
       * @method recalc
       * @param {tinymce.ui.Container} container Container instance to recalc.
       */
      recalc: function (container) {
        // A ton of variables, needs to be in the same scope for performance
        var i, l, items, contLayoutRect, contPaddingBox, contSettings, align, pack, spacing, totalFlex, availableSpace, direction;
        var ctrl, ctrlLayoutRect, ctrlSettings, flex, maxSizeItems = [], size, maxSize, ratio, rect, pos, maxAlignEndPos;
        var sizeName, minSizeName, posName, maxSizeName, beforeName, innerSizeName, deltaSizeName, contentSizeName;
        var alignAxisName, alignInnerSizeName, alignSizeName, alignMinSizeName, alignBeforeName, alignAfterName;
        var alignDeltaSizeName, alignContentSizeName;
        var max = Math.max, min = Math.min;

        // Get container items, properties and settings
        items = container.items().filter(':visible');
        contLayoutRect = container.layoutRect();
        contPaddingBox = container.paddingBox;
        contSettings = container.settings;
        direction = container.isRtl() ? (contSettings.direction || 'row-reversed') : contSettings.direction;
        align = contSettings.align;
        pack = container.isRtl() ? (contSettings.pack || 'end') : contSettings.pack;
        spacing = contSettings.spacing || 0;

        if (direction == "row-reversed" || direction == "column-reverse") {
          items = items.set(items.toArray().reverse());
          direction = direction.split('-')[0];
        }

        // Setup axis variable name for row/column direction since the calculations is the same
        if (direction == "column") {
          posName = "y";
          sizeName = "h";
          minSizeName = "minH";
          maxSizeName = "maxH";
          innerSizeName = "innerH";
          beforeName = 'top';
          deltaSizeName = "deltaH";
          contentSizeName = "contentH";

          alignBeforeName = "left";
          alignSizeName = "w";
          alignAxisName = "x";
          alignInnerSizeName = "innerW";
          alignMinSizeName = "minW";
          alignAfterName = "right";
          alignDeltaSizeName = "deltaW";
          alignContentSizeName = "contentW";
        } else {
          posName = "x";
          sizeName = "w";
          minSizeName = "minW";
          maxSizeName = "maxW";
          innerSizeName = "innerW";
          beforeName = 'left';
          deltaSizeName = "deltaW";
          contentSizeName = "contentW";

          alignBeforeName = "top";
          alignSizeName = "h";
          alignAxisName = "y";
          alignInnerSizeName = "innerH";
          alignMinSizeName = "minH";
          alignAfterName = "bottom";
          alignDeltaSizeName = "deltaH";
          alignContentSizeName = "contentH";
        }

        // Figure out total flex, availableSpace and collect any max size elements
        availableSpace = contLayoutRect[innerSizeName] - contPaddingBox[beforeName] - contPaddingBox[beforeName];
        maxAlignEndPos = totalFlex = 0;
        for (i = 0, l = items.length; i < l; i++) {
          ctrl = items[i];
          ctrlLayoutRect = ctrl.layoutRect();
          ctrlSettings = ctrl.settings;
          flex = ctrlSettings.flex;
          availableSpace -= (i < l - 1 ? spacing : 0);

          if (flex > 0) {
            totalFlex += flex;

            // Flexed item has a max size then we need to check if we will hit that size
            if (ctrlLayoutRect[maxSizeName]) {
              maxSizeItems.push(ctrl);
            }

            ctrlLayoutRect.flex = flex;
          }

          availableSpace -= ctrlLayoutRect[minSizeName];

          // Calculate the align end position to be used to check for overflow/underflow
          size = contPaddingBox[alignBeforeName] + ctrlLayoutRect[alignMinSizeName] + contPaddingBox[alignAfterName];
          if (size > maxAlignEndPos) {
            maxAlignEndPos = size;
          }
        }

        // Calculate minW/minH
        rect = {};
        if (availableSpace < 0) {
          rect[minSizeName] = contLayoutRect[minSizeName] - availableSpace + contLayoutRect[deltaSizeName];
        } else {
          rect[minSizeName] = contLayoutRect[innerSizeName] - availableSpace + contLayoutRect[deltaSizeName];
        }

        rect[alignMinSizeName] = maxAlignEndPos + contLayoutRect[alignDeltaSizeName];

        rect[contentSizeName] = contLayoutRect[innerSizeName] - availableSpace;
        rect[alignContentSizeName] = maxAlignEndPos;
        rect.minW = min(rect.minW, contLayoutRect.maxW);
        rect.minH = min(rect.minH, contLayoutRect.maxH);
        rect.minW = max(rect.minW, contLayoutRect.startMinWidth);
        rect.minH = max(rect.minH, contLayoutRect.startMinHeight);

        // Resize container container if minSize was changed
        if (contLayoutRect.autoResize && (rect.minW != contLayoutRect.minW || rect.minH != contLayoutRect.minH)) {
          rect.w = rect.minW;
          rect.h = rect.minH;

          container.layoutRect(rect);
          this.recalc(container);

          // Forced recalc for example if items are hidden/shown
          if (container._lastRect === null) {
            var parentCtrl = container.parent();
            if (parentCtrl) {
              parentCtrl._lastRect = null;
              parentCtrl.recalc();
            }
          }

          return;
        }

        // Handle max size elements, check if they will become to wide with current options
        ratio = availableSpace / totalFlex;
        for (i = 0, l = maxSizeItems.length; i < l; i++) {
          ctrl = maxSizeItems[i];
          ctrlLayoutRect = ctrl.layoutRect();
          maxSize = ctrlLayoutRect[maxSizeName];
          size = ctrlLayoutRect[minSizeName] + ctrlLayoutRect.flex * ratio;

          if (size > maxSize) {
            availableSpace -= (ctrlLayoutRect[maxSizeName] - ctrlLayoutRect[minSizeName]);
            totalFlex -= ctrlLayoutRect.flex;
            ctrlLayoutRect.flex = 0;
            ctrlLayoutRect.maxFlexSize = maxSize;
          } else {
            ctrlLayoutRect.maxFlexSize = 0;
          }
        }

        // Setup new ratio, target layout rect, start position
        ratio = availableSpace / totalFlex;
        pos = contPaddingBox[beforeName];
        rect = {};

        // Handle pack setting moves the start position to end, center
        if (totalFlex === 0) {
          if (pack == "end") {
            pos = availableSpace + contPaddingBox[beforeName];
          } else if (pack == "center") {
            pos = Math.round(
              (contLayoutRect[innerSizeName] / 2) - ((contLayoutRect[innerSizeName] - availableSpace) / 2)
            ) + contPaddingBox[beforeName];

            if (pos < 0) {
              pos = contPaddingBox[beforeName];
            }
          } else if (pack == "justify") {
            pos = contPaddingBox[beforeName];
            spacing = Math.floor(availableSpace / (items.length - 1));
          }
        }

        // Default aligning (start) the other ones needs to be calculated while doing the layout
        rect[alignAxisName] = contPaddingBox[alignBeforeName];

        // Start laying out controls
        for (i = 0, l = items.length; i < l; i++) {
          ctrl = items[i];
          ctrlLayoutRect = ctrl.layoutRect();
          size = ctrlLayoutRect.maxFlexSize || ctrlLayoutRect[minSizeName];

          // Align the control on the other axis
          if (align === "center") {
            rect[alignAxisName] = Math.round((contLayoutRect[alignInnerSizeName] / 2) - (ctrlLayoutRect[alignSizeName] / 2));
          } else if (align === "stretch") {
            rect[alignSizeName] = max(
              ctrlLayoutRect[alignMinSizeName] || 0,
              contLayoutRect[alignInnerSizeName] - contPaddingBox[alignBeforeName] - contPaddingBox[alignAfterName]
            );
            rect[alignAxisName] = contPaddingBox[alignBeforeName];
          } else if (align === "end") {
            rect[alignAxisName] = contLayoutRect[alignInnerSizeName] - ctrlLayoutRect[alignSizeName] - contPaddingBox.top;
          }

          // Calculate new size based on flex
          if (ctrlLayoutRect.flex > 0) {
            size += ctrlLayoutRect.flex * ratio;
          }

          rect[sizeName] = size;
          rect[posName] = pos;
          ctrl.layoutRect(rect);

          // Recalculate containers
          if (ctrl.recalc) {
            ctrl.recalc();
          }

          // Move x/y position
          pos += size + spacing;
        }
      }
    });
  }
);
/**
 * FlowLayout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This layout manager will place the controls by using the browsers native layout.
 *
 * @-x-less FlowLayout.less
 * @class tinymce.ui.FlowLayout
 * @extends tinymce.ui.Layout
 */
define(
  'tinymce.core.ui.FlowLayout',
  [
    "tinymce.core.ui.Layout"
  ],
  function (Layout) {
    return Layout.extend({
      Defaults: {
        containerClass: 'flow-layout',
        controlClass: 'flow-layout-item',
        endClass: 'break'
      },

      /**
       * Recalculates the positions of the controls in the specified container.
       *
       * @method recalc
       * @param {tinymce.ui.Container} container Container instance to recalc.
       */
      recalc: function (container) {
        container.items().filter(':visible').each(function (ctrl) {
          if (ctrl.recalc) {
            ctrl.recalc();
          }
        });
      },

      isNative: function () {
        return true;
      }
    });
  }
);
/**
 * FontInfo.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Internal class for computing font size for elements.
 *
 * @private
 * @class tinymce.fmt.FontInfo
 */
define(
  'tinymce.core.fmt.FontInfo',
  [
    'ephox.katamari.api.Fun',
    'ephox.katamari.api.Option',
    'ephox.sugar.api.node.Element',
    'ephox.sugar.api.node.Node',
    'tinymce.core.dom.DOMUtils'
  ],
  function (Fun, Option, Element, Node, DOMUtils) {
    var getSpecifiedFontProp = function (propName, rootElm, elm) {
      while (elm !== rootElm) {
        if (elm.style[propName]) {
          var foundStyle = elm.style[propName];
          return foundStyle !== '' ? Option.some(foundStyle) : Option.none();
        }
        elm = elm.parentNode;
      }
      return Option.none();
    };

    var toPt = function (fontSize) {
      if (/[0-9.]+px$/.test(fontSize)) {
        return Math.round(parseInt(fontSize, 10) * 72 / 96) + 'pt';
      }

      return fontSize;
    };

    var normalizeFontFamily = function (fontFamily) {
      // 'Font name', Font -> Font name,Font
      return fontFamily.replace(/[\'\"]/g, '').replace(/,\s+/g, ',');
    };

    var getComputedFontProp = function (propName, elm) {
      return Option.from(DOMUtils.DOM.getStyle(elm, propName, true));
    };

    var getFontProp = function (propName) {
      return function (rootElm, elm) {
        return Option.from(elm)
          .map(Element.fromDom)
          .filter(Node.isElement)
          .bind(function (element) {
            return getSpecifiedFontProp(propName, rootElm, element.dom())
              .or(getComputedFontProp(propName, element.dom()));
          })
          .getOr('');
      };
    };

    return {
      getFontSize: getFontProp('fontSize'),
      getFontFamily: Fun.compose(normalizeFontFamily, getFontProp('fontFamily')),
      toPt: toPt
    };
  }
);

/**
 * FormatControls.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Internal class containing all TinyMCE specific control types such as
 * format listboxes, fontlist boxes, toolbar buttons etc.
 *
 * @class tinymce.ui.FormatControls
 */
define(
  'tinymce.core.ui.FormatControls',
  [
    "tinymce.core.ui.Control",
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.FloatPanel",
    "tinymce.core.util.Tools",
    "tinymce.core.util.Arr",
    "tinymce.core.dom.DOMUtils",
    "tinymce.core.EditorManager",
    "tinymce.core.Env",
    "tinymce.core.fmt.FontInfo"
  ],
  function (Control, Widget, FloatPanel, Tools, Arr, DOMUtils, EditorManager, Env, FontInfo) {
    var each = Tools.each;

    var flatten = function (ar) {
      return Arr.reduce(ar, function (result, item) {
        return result.concat(item);
      }, []);
    };

    EditorManager.on('AddEditor', function (e) {
      var editor = e.editor;

      setupRtlMode(editor);
      registerControls(editor);
      setupContainer(editor);
    });

    Control.translate = function (text) {
      return EditorManager.translate(text);
    };

    Widget.tooltips = !Env.iOS;

    function setupContainer(editor) {
      if (editor.settings.ui_container) {
        Env.container = DOMUtils.DOM.select(editor.settings.ui_container)[0];
      }
    }

    function setupRtlMode(editor) {
      editor.on('ScriptsLoaded', function () {
        if (editor.rtl) {
          Control.rtl = true;
        }
      });
    }

    function registerControls(editor) {
      var formatMenu;

      function createListBoxChangeHandler(items, formatName) {
        return function () {
          var self = this;

          editor.on('nodeChange', function (e) {
            var formatter = editor.formatter;
            var value = null;

            each(e.parents, function (node) {
              each(items, function (item) {
                if (formatName) {
                  if (formatter.matchNode(node, formatName, { value: item.value })) {
                    value = item.value;
                  }
                } else {
                  if (formatter.matchNode(node, item.value)) {
                    value = item.value;
                  }
                }

                if (value) {
                  return false;
                }
              });

              if (value) {
                return false;
              }
            });

            self.value(value);
          });
        };
      }

      function createFontNameListBoxChangeHandler(items) {
        return function () {
          var self = this;

          var getFirstFont = function (fontFamily) {
            return fontFamily ? fontFamily.split(',')[0] : '';
          };

          editor.on('nodeChange', function (e) {
            var fontFamily, value = null;

            fontFamily = FontInfo.getFontFamily(editor.getBody(), e.element);

            each(items, function (item) {
              if (item.value.toLowerCase() === fontFamily.toLowerCase()) {
                value = item.value;
              }
            });

            each(items, function (item) {
              if (!value && getFirstFont(item.value).toLowerCase() === getFirstFont(fontFamily).toLowerCase()) {
                value = item.value;
              }
            });

            self.value(value);

            if (!value && fontFamily) {
              self.text(getFirstFont(fontFamily));
            }
          });
        };
      }

      function createFontSizeListBoxChangeHandler(items) {
        return function () {
          var self = this;

          editor.on('nodeChange', function (e) {
            var px, pt, value = null;

            px = FontInfo.getFontSize(editor.getBody(), e.element);
            pt = FontInfo.toPt(px);

            each(items, function (item) {
              if (item.value === px) {
                value = px;
              } else if (item.value === pt) {
                value = pt;
              }
            });

            self.value(value);

            if (!value) {
              self.text(pt);
            }
          });
        };
      }

      function createFormats(formats) {
        formats = formats.replace(/;$/, '').split(';');

        var i = formats.length;
        while (i--) {
          formats[i] = formats[i].split('=');
        }

        return formats;
      }

      function createFormatMenu() {
        var count = 0, newFormats = [];

        var defaultStyleFormats = [
          {
            title: 'Headings', items: [
              { title: 'Heading 1', format: 'h1' },
              { title: 'Heading 2', format: 'h2' },
              { title: 'Heading 3', format: 'h3' },
              { title: 'Heading 4', format: 'h4' },
              { title: 'Heading 5', format: 'h5' },
              { title: 'Heading 6', format: 'h6' }
            ]
          },

          {
            title: 'Inline', items: [
              { title: 'Bold', icon: 'bold', format: 'bold' },
              { title: 'Italic', icon: 'italic', format: 'italic' },
              { title: 'Underline', icon: 'underline', format: 'underline' },
              { title: 'Strikethrough', icon: 'strikethrough', format: 'strikethrough' },
              { title: 'Superscript', icon: 'superscript', format: 'superscript' },
              { title: 'Subscript', icon: 'subscript', format: 'subscript' },
              { title: 'Code', icon: 'code', format: 'code' }
            ]
          },

          {
            title: 'Blocks', items: [
              { title: 'Paragraph', format: 'p' },
              { title: 'Blockquote', format: 'blockquote' },
              { title: 'Div', format: 'div' },
              { title: 'Pre', format: 'pre' }
            ]
          },

          {
            title: 'Alignment', items: [
              { title: 'Left', icon: 'alignleft', format: 'alignleft' },
              { title: 'Center', icon: 'aligncenter', format: 'aligncenter' },
              { title: 'Right', icon: 'alignright', format: 'alignright' },
              { title: 'Justify', icon: 'alignjustify', format: 'alignjustify' }
            ]
          }
        ];

        function createMenu(formats) {
          var menu = [];

          if (!formats) {
            return;
          }

          each(formats, function (format) {
            var menuItem = {
              text: format.title,
              icon: format.icon
            };

            if (format.items) {
              menuItem.menu = createMenu(format.items);
            } else {
              var formatName = format.format || "custom" + count++;

              if (!format.format) {
                format.name = formatName;
                newFormats.push(format);
              }

              menuItem.format = formatName;
              menuItem.cmd = format.cmd;
            }

            menu.push(menuItem);
          });

          return menu;
        }

        function createStylesMenu() {
          var menu;

          if (editor.settings.style_formats_merge) {
            if (editor.settings.style_formats) {
              menu = createMenu(defaultStyleFormats.concat(editor.settings.style_formats));
            } else {
              menu = createMenu(defaultStyleFormats);
            }
          } else {
            menu = createMenu(editor.settings.style_formats || defaultStyleFormats);
          }

          return menu;
        }

        editor.on('init', function () {
          each(newFormats, function (format) {
            editor.formatter.register(format.name, format);
          });
        });

        return {
          type: 'menu',
          items: createStylesMenu(),
          onPostRender: function (e) {
            editor.fire('renderFormatsMenu', { control: e.control });
          },
          itemDefaults: {
            preview: true,

            textStyle: function () {
              if (this.settings.format) {
                return editor.formatter.getCssText(this.settings.format);
              }
            },

            onPostRender: function () {
              var self = this;

              self.parent().on('show', function () {
                var formatName, command;

                formatName = self.settings.format;
                if (formatName) {
                  self.disabled(!editor.formatter.canApply(formatName));
                  self.active(editor.formatter.match(formatName));
                }

                command = self.settings.cmd;
                if (command) {
                  self.active(editor.queryCommandState(command));
                }
              });
            },

            onclick: function () {
              if (this.settings.format) {
                toggleFormat(this.settings.format);
              }

              if (this.settings.cmd) {
                editor.execCommand(this.settings.cmd);
              }
            }
          }
        };
      }

      formatMenu = createFormatMenu();

      function initOnPostRender(name) {
        return function () {
          var self = this;

          // TODO: Fix this
          if (editor.formatter) {
            editor.formatter.formatChanged(name, function (state) {
              self.active(state);
            });
          } else {
            editor.on('init', function () {
              editor.formatter.formatChanged(name, function (state) {
                self.active(state);
              });
            });
          }
        };
      }

      // Simple format controls <control/format>:<UI text>
      each({
        bold: 'Bold',
        italic: 'Italic',
        underline: 'Underline',
        strikethrough: 'Strikethrough',
        subscript: 'Subscript',
        superscript: 'Superscript'
      }, function (text, name) {
        editor.addButton(name, {
          tooltip: text,
          onPostRender: initOnPostRender(name),
          onclick: function () {
            toggleFormat(name);
          }
        });
      });

      // Simple command controls <control>:[<UI text>,<Command>]
      each({
        outdent: ['Decrease indent', 'Outdent'],
        indent: ['Increase indent', 'Indent'],
        cut: ['Cut', 'Cut'],
        copy: ['Copy', 'Copy'],
        paste: ['Paste', 'Paste'],
        help: ['Help', 'mceHelp'],
        selectall: ['Select all', 'SelectAll'],
        removeformat: ['Clear formatting', 'RemoveFormat'],
        visualaid: ['Visual aids', 'mceToggleVisualAid'],
        newdocument: ['New document', 'mceNewDocument']
      }, function (item, name) {
        editor.addButton(name, {
          tooltip: item[0],
          cmd: item[1]
        });
      });

      // Simple command controls with format state
      each({
        blockquote: ['Blockquote', 'mceBlockQuote'],
        subscript: ['Subscript', 'Subscript'],
        superscript: ['Superscript', 'Superscript'],
        alignleft: ['Align left', 'JustifyLeft'],
        aligncenter: ['Align center', 'JustifyCenter'],
        alignright: ['Align right', 'JustifyRight'],
        alignjustify: ['Justify', 'JustifyFull'],
        alignnone: ['No alignment', 'JustifyNone']
      }, function (item, name) {
        editor.addButton(name, {
          tooltip: item[0],
          cmd: item[1],
          onPostRender: initOnPostRender(name)
        });
      });

      function toggleUndoRedoState(type) {
        return function () {
          var self = this;

          function checkState() {
            var typeFn = type == 'redo' ? 'hasRedo' : 'hasUndo';
            return editor.undoManager ? editor.undoManager[typeFn]() : false;
          }

          self.disabled(!checkState());
          editor.on('Undo Redo AddUndo TypingUndo ClearUndos SwitchMode', function () {
            self.disabled(editor.readonly || !checkState());
          });
        };
      }

      function toggleVisualAidState() {
        var self = this;

        editor.on('VisualAid', function (e) {
          self.active(e.hasVisual);
        });

        self.active(editor.hasVisual);
      }

      var trimMenuItems = function (menuItems) {
        var outputMenuItems = menuItems;

        if (outputMenuItems.length > 0 && outputMenuItems[0].text === '-') {
          outputMenuItems = outputMenuItems.slice(1);
        }

        if (outputMenuItems.length > 0 && outputMenuItems[outputMenuItems.length - 1].text === '-') {
          outputMenuItems = outputMenuItems.slice(0, outputMenuItems.length - 1);
        }

        return outputMenuItems;
      };

      var createCustomMenuItems = function (names) {
        var items, nameList;

        if (typeof names === 'string') {
          nameList = names.split(' ');
        } else if (Tools.isArray(names)) {
          return flatten(Tools.map(names, createCustomMenuItems));
        }

        items = Tools.grep(nameList, function (name) {
          return name === '|' || name in editor.menuItems;
        });

        return Tools.map(items, function (name) {
          return name === '|' ? { text: '-' } : editor.menuItems[name];
        });
      };

      var createContextMenuItems = function (context) {
        var outputMenuItems = [{ text: '-' }];
        var menuItems = Tools.grep(editor.menuItems, function (menuItem) {
          return menuItem.context === context;
        });

        Tools.each(menuItems, function (menuItem) {
          if (menuItem.separator == 'before') {
            outputMenuItems.push({ text: '|' });
          }

          if (menuItem.prependToContext) {
            outputMenuItems.unshift(menuItem);
          } else {
            outputMenuItems.push(menuItem);
          }

          if (menuItem.separator == 'after') {
            outputMenuItems.push({ text: '|' });
          }
        });

        return outputMenuItems;
      };

      var createInsertMenu = function (editorSettings) {
        if (editorSettings.insert_button_items) {
          return trimMenuItems(createCustomMenuItems(editorSettings.insert_button_items));
        } else {
          return trimMenuItems(createContextMenuItems('insert'));
        }
      };

      editor.addButton('undo', {
        tooltip: 'Undo',
        onPostRender: toggleUndoRedoState('undo'),
        cmd: 'undo'
      });

      editor.addButton('redo', {
        tooltip: 'Redo',
        onPostRender: toggleUndoRedoState('redo'),
        cmd: 'redo'
      });

      editor.addMenuItem('newdocument', {
        text: 'New document',
        icon: 'newdocument',
        cmd: 'mceNewDocument'
      });

      editor.addMenuItem('undo', {
        text: 'Undo',
        icon: 'undo',
        shortcut: 'Meta+Z',
        onPostRender: toggleUndoRedoState('undo'),
        cmd: 'undo'
      });

      editor.addMenuItem('redo', {
        text: 'Redo',
        icon: 'redo',
        shortcut: 'Meta+Y',
        onPostRender: toggleUndoRedoState('redo'),
        cmd: 'redo'
      });

      editor.addMenuItem('visualaid', {
        text: 'Visual aids',
        selectable: true,
        onPostRender: toggleVisualAidState,
        cmd: 'mceToggleVisualAid'
      });

      editor.addButton('remove', {
        tooltip: 'Remove',
        icon: 'remove',
        cmd: 'Delete'
      });

      editor.addButton('insert', {
        type: 'menubutton',
        icon: 'insert',
        menu: [],
        oncreatemenu: function () {
          this.menu.add(createInsertMenu(editor.settings));
          this.menu.renderNew();
        }
      });

      each({
        cut: ['Cut', 'Cut', 'Meta+X'],
        copy: ['Copy', 'Copy', 'Meta+C'],
        paste: ['Paste', 'Paste', 'Meta+V'],
        selectall: ['Select all', 'SelectAll', 'Meta+A'],
        bold: ['Bold', 'Bold', 'Meta+B'],
        italic: ['Italic', 'Italic', 'Meta+I'],
        underline: ['Underline', 'Underline', 'Meta+U'],
        strikethrough: ['Strikethrough', 'Strikethrough'],
        subscript: ['Subscript', 'Subscript'],
        superscript: ['Superscript', 'Superscript'],
        removeformat: ['Clear formatting', 'RemoveFormat']
      }, function (item, name) {
        editor.addMenuItem(name, {
          text: item[0],
          icon: name,
          shortcut: item[2],
          cmd: item[1]
        });
      });

      editor.on('mousedown', function () {
        FloatPanel.hideAll();
      });

      function toggleFormat(fmt) {
        if (fmt.control) {
          fmt = fmt.control.value();
        }

        if (fmt) {
          editor.execCommand('mceToggleFormat', false, fmt);
        }
      }

      function hideMenuObjects(menu) {
        var count = menu.length;

        Tools.each(menu, function (item) {
          if (item.menu) {
            item.hidden = hideMenuObjects(item.menu) === 0;
          }

          var formatName = item.format;
          if (formatName) {
            item.hidden = !editor.formatter.canApply(formatName);
          }

          if (item.hidden) {
            count--;
          }
        });

        return count;
      }

      function hideFormatMenuItems(menu) {
        var count = menu.items().length;

        menu.items().each(function (item) {
          if (item.menu) {
            item.visible(hideFormatMenuItems(item.menu) > 0);
          }

          if (!item.menu && item.settings.menu) {
            item.visible(hideMenuObjects(item.settings.menu) > 0);
          }

          var formatName = item.settings.format;
          if (formatName) {
            item.visible(editor.formatter.canApply(formatName));
          }

          if (!item.visible()) {
            count--;
          }
        });

        return count;
      }

      editor.addButton('styleselect', {
        type: 'menubutton',
        text: 'Formats',
        menu: formatMenu,
        onShowMenu: function () {
          if (editor.settings.style_formats_autohide) {
            hideFormatMenuItems(this.menu);
          }
        }
      });

      editor.addButton('formatselect', function () {
        var items = [], blocks = createFormats(editor.settings.block_formats ||
          'Paragraph=p;' +
          'Heading 1=h1;' +
          'Heading 2=h2;' +
          'Heading 3=h3;' +
          'Heading 4=h4;' +
          'Heading 5=h5;' +
          'Heading 6=h6;' +
          'Preformatted=pre'
        );

        each(blocks, function (block) {
          items.push({
            text: block[0],
            value: block[1],
            textStyle: function () {
              return editor.formatter.getCssText(block[1]);
            }
          });
        });

        return {
          type: 'listbox',
          text: blocks[0][0],
          values: items,
          fixedWidth: true,
          onselect: toggleFormat,
          onPostRender: createListBoxChangeHandler(items)
        };
      });

      editor.addButton('fontselect', function () {
        var defaultFontsFormats =
          'Andale Mono=andale mono,monospace;' +
          'Arial=arial,helvetica,sans-serif;' +
          'Arial Black=arial black,sans-serif;' +
          'Book Antiqua=book antiqua,palatino,serif;' +
          'Comic Sans MS=comic sans ms,sans-serif;' +
          'Courier New=courier new,courier,monospace;' +
          'Georgia=georgia,palatino,serif;' +
          'Helvetica=helvetica,arial,sans-serif;' +
          'Impact=impact,sans-serif;' +
          'Symbol=symbol;' +
          'Tahoma=tahoma,arial,helvetica,sans-serif;' +
          'Terminal=terminal,monaco,monospace;' +
          'Times New Roman=times new roman,times,serif;' +
          'Trebuchet MS=trebuchet ms,geneva,sans-serif;' +
          'Verdana=verdana,geneva,sans-serif;' +
          'Webdings=webdings;' +
          'Wingdings=wingdings,zapf dingbats';

        var items = [], fonts = createFormats(editor.settings.font_formats || defaultFontsFormats);

        each(fonts, function (font) {
          items.push({
            text: { raw: font[0] },
            value: font[1],
            textStyle: font[1].indexOf('dings') == -1 ? 'font-family:' + font[1] : ''
          });
        });

        return {
          type: 'listbox',
          text: 'Font Family',
          tooltip: 'Font Family',
          values: items,
          fixedWidth: true,
          onPostRender: createFontNameListBoxChangeHandler(items),
          onselect: function (e) {
            if (e.control.settings.value) {
              editor.execCommand('FontName', false, e.control.settings.value);
            }
          }
        };
      });

      editor.addButton('fontsizeselect', function () {
        var items = [], defaultFontsizeFormats = '8pt 10pt 12pt 14pt 18pt 24pt 36pt';
        var fontsizeFormats = editor.settings.fontsize_formats || defaultFontsizeFormats;

        each(fontsizeFormats.split(' '), function (item) {
          var text = item, value = item;
          // Allow text=value font sizes.
          var values = item.split('=');
          if (values.length > 1) {
            text = values[0];
            value = values[1];
          }
          items.push({ text: text, value: value });
        });

        return {
          type: 'listbox',
          text: 'Font Sizes',
          tooltip: 'Font Sizes',
          values: items,
          fixedWidth: true,
          onPostRender: createFontSizeListBoxChangeHandler(items),
          onclick: function (e) {
            if (e.control.settings.value) {
              editor.execCommand('FontSize', false, e.control.settings.value);
            }
          }
        };
      });

      editor.addMenuItem('formats', {
        text: 'Formats',
        menu: formatMenu
      });
    }

    return {};
  }
);

/**
 * GridLayout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This layout manager places controls in a grid.
 *
 * @setting {Number} spacing Spacing between controls.
 * @setting {Number} spacingH Horizontal spacing between controls.
 * @setting {Number} spacingV Vertical spacing between controls.
 * @setting {Number} columns Number of columns to use.
 * @setting {String/Array} alignH start|end|center|stretch or array of values for each column.
 * @setting {String/Array} alignV start|end|center|stretch or array of values for each column.
 * @setting {String} pack start|end
 *
 * @class tinymce.ui.GridLayout
 * @extends tinymce.ui.AbsoluteLayout
 */
define(
  'tinymce.core.ui.GridLayout',
  [
    "tinymce.core.ui.AbsoluteLayout"
  ],
  function (AbsoluteLayout) {
    "use strict";

    return AbsoluteLayout.extend({
      /**
       * Recalculates the positions of the controls in the specified container.
       *
       * @method recalc
       * @param {tinymce.ui.Container} container Container instance to recalc.
       */
      recalc: function (container) {
        var settings, rows, cols, items, contLayoutRect, width, height, rect,
          ctrlLayoutRect, ctrl, x, y, posX, posY, ctrlSettings, contPaddingBox, align, spacingH, spacingV, alignH, alignV, maxX, maxY,
          colWidths = [], rowHeights = [], ctrlMinWidth, ctrlMinHeight, availableWidth, availableHeight, reverseRows, idx;

        // Get layout settings
        settings = container.settings;
        items = container.items().filter(':visible');
        contLayoutRect = container.layoutRect();
        cols = settings.columns || Math.ceil(Math.sqrt(items.length));
        rows = Math.ceil(items.length / cols);
        spacingH = settings.spacingH || settings.spacing || 0;
        spacingV = settings.spacingV || settings.spacing || 0;
        alignH = settings.alignH || settings.align;
        alignV = settings.alignV || settings.align;
        contPaddingBox = container.paddingBox;
        reverseRows = 'reverseRows' in settings ? settings.reverseRows : container.isRtl();

        if (alignH && typeof alignH == "string") {
          alignH = [alignH];
        }

        if (alignV && typeof alignV == "string") {
          alignV = [alignV];
        }

        // Zero padd columnWidths
        for (x = 0; x < cols; x++) {
          colWidths.push(0);
        }

        // Zero padd rowHeights
        for (y = 0; y < rows; y++) {
          rowHeights.push(0);
        }

        // Calculate columnWidths and rowHeights
        for (y = 0; y < rows; y++) {
          for (x = 0; x < cols; x++) {
            ctrl = items[y * cols + x];

            // Out of bounds
            if (!ctrl) {
              break;
            }

            ctrlLayoutRect = ctrl.layoutRect();
            ctrlMinWidth = ctrlLayoutRect.minW;
            ctrlMinHeight = ctrlLayoutRect.minH;

            colWidths[x] = ctrlMinWidth > colWidths[x] ? ctrlMinWidth : colWidths[x];
            rowHeights[y] = ctrlMinHeight > rowHeights[y] ? ctrlMinHeight : rowHeights[y];
          }
        }

        // Calculate maxX
        availableWidth = contLayoutRect.innerW - contPaddingBox.left - contPaddingBox.right;
        for (maxX = 0, x = 0; x < cols; x++) {
          maxX += colWidths[x] + (x > 0 ? spacingH : 0);
          availableWidth -= (x > 0 ? spacingH : 0) + colWidths[x];
        }

        // Calculate maxY
        availableHeight = contLayoutRect.innerH - contPaddingBox.top - contPaddingBox.bottom;
        for (maxY = 0, y = 0; y < rows; y++) {
          maxY += rowHeights[y] + (y > 0 ? spacingV : 0);
          availableHeight -= (y > 0 ? spacingV : 0) + rowHeights[y];
        }

        maxX += contPaddingBox.left + contPaddingBox.right;
        maxY += contPaddingBox.top + contPaddingBox.bottom;

        // Calculate minW/minH
        rect = {};
        rect.minW = maxX + (contLayoutRect.w - contLayoutRect.innerW);
        rect.minH = maxY + (contLayoutRect.h - contLayoutRect.innerH);

        rect.contentW = rect.minW - contLayoutRect.deltaW;
        rect.contentH = rect.minH - contLayoutRect.deltaH;
        rect.minW = Math.min(rect.minW, contLayoutRect.maxW);
        rect.minH = Math.min(rect.minH, contLayoutRect.maxH);
        rect.minW = Math.max(rect.minW, contLayoutRect.startMinWidth);
        rect.minH = Math.max(rect.minH, contLayoutRect.startMinHeight);

        // Resize container container if minSize was changed
        if (contLayoutRect.autoResize && (rect.minW != contLayoutRect.minW || rect.minH != contLayoutRect.minH)) {
          rect.w = rect.minW;
          rect.h = rect.minH;

          container.layoutRect(rect);
          this.recalc(container);

          // Forced recalc for example if items are hidden/shown
          if (container._lastRect === null) {
            var parentCtrl = container.parent();
            if (parentCtrl) {
              parentCtrl._lastRect = null;
              parentCtrl.recalc();
            }
          }

          return;
        }

        // Update contentW/contentH so absEnd moves correctly
        if (contLayoutRect.autoResize) {
          rect = container.layoutRect(rect);
          rect.contentW = rect.minW - contLayoutRect.deltaW;
          rect.contentH = rect.minH - contLayoutRect.deltaH;
        }

        var flexV;

        if (settings.packV == 'start') {
          flexV = 0;
        } else {
          flexV = availableHeight > 0 ? Math.floor(availableHeight / rows) : 0;
        }

        // Calculate totalFlex
        var totalFlex = 0;
        var flexWidths = settings.flexWidths;
        if (flexWidths) {
          for (x = 0; x < flexWidths.length; x++) {
            totalFlex += flexWidths[x];
          }
        } else {
          totalFlex = cols;
        }

        // Calculate new column widths based on flex values
        var ratio = availableWidth / totalFlex;
        for (x = 0; x < cols; x++) {
          colWidths[x] += flexWidths ? flexWidths[x] * ratio : ratio;
        }

        // Move/resize controls
        posY = contPaddingBox.top;
        for (y = 0; y < rows; y++) {
          posX = contPaddingBox.left;
          height = rowHeights[y] + flexV;

          for (x = 0; x < cols; x++) {
            if (reverseRows) {
              idx = y * cols + cols - 1 - x;
            } else {
              idx = y * cols + x;
            }

            ctrl = items[idx];

            // No more controls to render then break
            if (!ctrl) {
              break;
            }

            // Get control settings and calculate x, y
            ctrlSettings = ctrl.settings;
            ctrlLayoutRect = ctrl.layoutRect();
            width = Math.max(colWidths[x], ctrlLayoutRect.startMinWidth);
            ctrlLayoutRect.x = posX;
            ctrlLayoutRect.y = posY;

            // Align control horizontal
            align = ctrlSettings.alignH || (alignH ? (alignH[x] || alignH[0]) : null);
            if (align == "center") {
              ctrlLayoutRect.x = posX + (width / 2) - (ctrlLayoutRect.w / 2);
            } else if (align == "right") {
              ctrlLayoutRect.x = posX + width - ctrlLayoutRect.w;
            } else if (align == "stretch") {
              ctrlLayoutRect.w = width;
            }

            // Align control vertical
            align = ctrlSettings.alignV || (alignV ? (alignV[x] || alignV[0]) : null);
            if (align == "center") {
              ctrlLayoutRect.y = posY + (height / 2) - (ctrlLayoutRect.h / 2);
            } else if (align == "bottom") {
              ctrlLayoutRect.y = posY + height - ctrlLayoutRect.h;
            } else if (align == "stretch") {
              ctrlLayoutRect.h = height;
            }

            ctrl.layoutRect(ctrlLayoutRect);

            posX += width + spacingH;

            if (ctrl.recalc) {
              ctrl.recalc();
            }
          }

          posY += height + spacingV;
        }
      }
    });
  }
);

/**
 * Iframe.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*jshint scripturl:true */

/**
 * This class creates an iframe.
 *
 * @setting {String} url Url to open in the iframe.
 *
 * @-x-less Iframe.less
 * @class tinymce.ui.Iframe
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Iframe',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.util.Delay"
  ],
  function (Widget, Delay) {
    "use strict";

    return Widget.extend({
      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this;

        self.classes.add('iframe');
        self.canFocus = false;

        /*eslint no-script-url:0 */
        return (
          '<iframe id="' + self._id + '" class="' + self.classes + '" tabindex="-1" src="' +
          (self.settings.url || "javascript:''") + '" frameborder="0"></iframe>'
        );
      },

      /**
       * Setter for the iframe source.
       *
       * @method src
       * @param {String} src Source URL for iframe.
       */
      src: function (src) {
        this.getEl().src = src;
      },

      /**
       * Inner HTML for the iframe.
       *
       * @method html
       * @param {String} html HTML string to set as HTML inside the iframe.
       * @param {function} callback Optional callback to execute when the iframe body is filled with contents.
       * @return {tinymce.ui.Iframe} Current iframe control.
       */
      html: function (html, callback) {
        var self = this, body = this.getEl().contentWindow.document.body;

        // Wait for iframe to initialize IE 10 takes time
        if (!body) {
          Delay.setTimeout(function () {
            self.html(html);
          });
        } else {
          body.innerHTML = html;

          if (callback) {
            callback();
          }
        }

        return this;
      }
    });
  }
);

/**
 * InfoBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * ....
 *
 * @-x-less InfoBox.less
 * @class tinymce.ui.InfoBox
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.InfoBox',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    return Widget.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Boolean} multiline Multiline label.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        self.classes.add('widget').add('infobox');
        self.canFocus = false;
      },

      severity: function (level) {
        this.classes.remove('error');
        this.classes.remove('warning');
        this.classes.remove('success');
        this.classes.add(level);
      },

      help: function (state) {
        this.state.set('help', state);
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, prefix = self.classPrefix;

        return (
          '<div id="' + self._id + '" class="' + self.classes + '">' +
          '<div id="' + self._id + '-body">' +
          self.encode(self.state.get('text')) +
          '<button role="button" tabindex="-1">' +
          '<i class="' + prefix + 'ico ' + prefix + 'i-help"></i>' +
          '</button>' +
          '</div>' +
          '</div>'
        );
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:text', function (e) {
          self.getEl('body').firstChild.data = self.encode(e.value);

          if (self.state.get('rendered')) {
            self.updateLayoutRect();
          }
        });

        self.state.on('change:help', function (e) {
          self.classes.toggle('has-help', e.value);

          if (self.state.get('rendered')) {
            self.updateLayoutRect();
          }
        });

        return self._super();
      }
    });
  }
);

/**
 * Label.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class creates a label element. A label is a simple text control
 * that can be bound to other controls.
 *
 * @-x-less Label.less
 * @class tinymce.ui.Label
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Label',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.DomUtils"
  ],
  function (Widget, DomUtils) {
    "use strict";

    return Widget.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Boolean} multiline Multiline label.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        self.classes.add('widget').add('label');
        self.canFocus = false;

        if (settings.multiline) {
          self.classes.add('autoscroll');
        }

        if (settings.strong) {
          self.classes.add('strong');
        }
      },

      /**
       * Initializes the current controls layout rect.
       * This will be executed by the layout managers to determine the
       * default minWidth/minHeight etc.
       *
       * @method initLayoutRect
       * @return {Object} Layout rect instance.
       */
      initLayoutRect: function () {
        var self = this, layoutRect = self._super();

        if (self.settings.multiline) {
          var size = DomUtils.getSize(self.getEl());

          // Check if the text fits within maxW if not then try word wrapping it
          if (size.width > layoutRect.maxW) {
            layoutRect.minW = layoutRect.maxW;
            self.classes.add('multiline');
          }

          self.getEl().style.width = layoutRect.minW + 'px';
          layoutRect.startMinH = layoutRect.h = layoutRect.minH = Math.min(layoutRect.maxH, DomUtils.getSize(self.getEl()).height);
        }

        return layoutRect;
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this;

        if (!self.settings.multiline) {
          self.getEl().style.lineHeight = self.layoutRect().h + 'px';
        }

        return self._super();
      },

      severity: function (level) {
        this.classes.remove('error');
        this.classes.remove('warning');
        this.classes.remove('success');
        this.classes.add(level);
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, targetCtrl, forName, forId = self.settings.forId;
        var text = self.settings.html ? self.settings.html : self.encode(self.state.get('text'));

        if (!forId && (forName = self.settings.forName)) {
          targetCtrl = self.getRoot().find('#' + forName)[0];

          if (targetCtrl) {
            forId = targetCtrl._id;
          }
        }

        if (forId) {
          return (
            '<label id="' + self._id + '" class="' + self.classes + '"' + (forId ? ' for="' + forId + '"' : '') + '>' +
            text +
            '</label>'
          );
        }

        return (
          '<span id="' + self._id + '" class="' + self.classes + '">' +
          text +
          '</span>'
        );
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:text', function (e) {
          self.innerHtml(self.encode(e.value));

          if (self.state.get('rendered')) {
            self.updateLayoutRect();
          }
        });

        return self._super();
      }
    });
  }
);

/**
 * Toolbar.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new toolbar.
 *
 * @class tinymce.ui.Toolbar
 * @extends tinymce.ui.Container
 */
define(
  'tinymce.core.ui.Toolbar',
  [
    "tinymce.core.ui.Container"
  ],
  function (Container) {
    "use strict";

    return Container.extend({
      Defaults: {
        role: 'toolbar',
        layout: 'flow'
      },

      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);
        self.classes.add('toolbar');
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this;

        self.items().each(function (ctrl) {
          ctrl.classes.add('toolbar-item');
        });

        return self._super();
      }
    });
  }
);
/**
 * MenuBar.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new menubar.
 *
 * @-x-less MenuBar.less
 * @class tinymce.ui.MenuBar
 * @extends tinymce.ui.Container
 */
define(
  'tinymce.core.ui.MenuBar',
  [
    "tinymce.core.ui.Toolbar"
  ],
  function (Toolbar) {
    "use strict";

    return Toolbar.extend({
      Defaults: {
        role: 'menubar',
        containerCls: 'menubar',
        ariaRoot: true,
        defaults: {
          type: 'menubutton'
        }
      }
    });
  }
);
/**
 * MenuButton.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new menu button.
 *
 * @-x-less MenuButton.less
 * @class tinymce.ui.MenuButton
 * @extends tinymce.ui.Button
 */
define(
  'tinymce.core.ui.MenuButton',
  [
    "tinymce.core.ui.Button",
    "tinymce.core.ui.Factory",
    "tinymce.core.ui.MenuBar"
  ],
  function (Button, Factory, MenuBar) {
    "use strict";

    // TODO: Maybe add as some global function
    function isChildOf(node, parent) {
      while (node) {
        if (parent === node) {
          return true;
        }

        node = node.parentNode;
      }

      return false;
    }

    var MenuButton = Button.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        var self = this;

        self._renderOpen = true;

        self._super(settings);
        settings = self.settings;

        self.classes.add('menubtn');

        if (settings.fixedWidth) {
          self.classes.add('fixed-width');
        }

        self.aria('haspopup', true);

        self.state.set('menu', settings.menu || self.render());
      },

      /**
       * Shows the menu for the button.
       *
       * @method showMenu
       */
      showMenu: function (toggle) {
        var self = this, menu;

        if (self.menu && self.menu.visible() && toggle !== false) {
          return self.hideMenu();
        }

        if (!self.menu) {
          menu = self.state.get('menu') || [];

          // Is menu array then auto constuct menu control
          if (menu.length) {
            menu = {
              type: 'menu',
              items: menu
            };
          } else {
            menu.type = menu.type || 'menu';
          }

          if (!menu.renderTo) {
            self.menu = Factory.create(menu).parent(self).renderTo();
          } else {
            self.menu = menu.parent(self).show().renderTo();
          }

          self.fire('createmenu');
          self.menu.reflow();
          self.menu.on('cancel', function (e) {
            if (e.control.parent() === self.menu) {
              e.stopPropagation();
              self.focus();
              self.hideMenu();
            }
          });

          // Move focus to button when a menu item is selected/clicked
          self.menu.on('select', function () {
            self.focus();
          });

          self.menu.on('show hide', function (e) {
            if (e.control == self.menu) {
              self.activeMenu(e.type == 'show');
            }

            self.aria('expanded', e.type == 'show');
          }).fire('show');
        }

        self.menu.show();
        self.menu.layoutRect({ w: self.layoutRect().w });
        self.menu.moveRel(self.getEl(), self.isRtl() ? ['br-tr', 'tr-br'] : ['bl-tl', 'tl-bl']);
        self.fire('showmenu');
      },

      /**
       * Hides the menu for the button.
       *
       * @method hideMenu
       */
      hideMenu: function () {
        var self = this;

        if (self.menu) {
          self.menu.items().each(function (item) {
            if (item.hideMenu) {
              item.hideMenu();
            }
          });

          self.menu.hide();
        }
      },

      /**
       * Sets the active menu state.
       *
       * @private
       */
      activeMenu: function (state) {
        this.classes.toggle('active', state);
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix;
        var icon = self.settings.icon, image, text = self.state.get('text'),
          textHtml = '';

        image = self.settings.image;
        if (image) {
          icon = 'none';

          // Support for [high dpi, low dpi] image sources
          if (typeof image != "string") {
            image = window.getSelection ? image[0] : image[1];
          }

          image = ' style="background-image: url(\'' + image + '\')"';
        } else {
          image = '';
        }

        if (text) {
          self.classes.add('btn-has-text');
          textHtml = '<span class="' + prefix + 'txt">' + self.encode(text) + '</span>';
        }

        icon = self.settings.icon ? prefix + 'ico ' + prefix + 'i-' + icon : '';

        self.aria('role', self.parent() instanceof MenuBar ? 'menuitem' : 'button');

        return (
          '<div id="' + id + '" class="' + self.classes + '" tabindex="-1" aria-labelledby="' + id + '">' +
          '<button id="' + id + '-open" role="presentation" type="button" tabindex="-1">' +
          (icon ? '<i class="' + icon + '"' + image + '></i>' : '') +
          textHtml +
          ' <i class="' + prefix + 'caret"></i>' +
          '</button>' +
          '</div>'
        );
      },

      /**
       * Gets invoked after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this;

        self.on('click', function (e) {
          if (e.control === self && isChildOf(e.target, self.getEl())) {
            self.focus();
            self.showMenu(!e.aria);

            if (e.aria) {
              self.menu.items().filter(':visible')[0].focus();
            }
          }
        });

        self.on('mouseenter', function (e) {
          var overCtrl = e.control, parent = self.parent(), hasVisibleSiblingMenu;

          if (overCtrl && parent && overCtrl instanceof MenuButton && overCtrl.parent() == parent) {
            parent.items().filter('MenuButton').each(function (ctrl) {
              if (ctrl.hideMenu && ctrl != overCtrl) {
                if (ctrl.menu && ctrl.menu.visible()) {
                  hasVisibleSiblingMenu = true;
                }

                ctrl.hideMenu();
              }
            });

            if (hasVisibleSiblingMenu) {
              overCtrl.focus(); // Fix for: #5887
              overCtrl.showMenu();
            }
          }
        });

        return self._super();
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:menu', function () {
          if (self.menu) {
            self.menu.remove();
          }

          self.menu = null;
        });

        return self._super();
      },

      /**
       * Removes the control and it's menus.
       *
       * @method remove
       */
      remove: function () {
        this._super();

        if (this.menu) {
          this.menu.remove();
        }
      }
    });

    return MenuButton;
  }
);

/**
 * MenuItem.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new menu item.
 *
 * @-x-less MenuItem.less
 * @class tinymce.ui.MenuItem
 * @extends tinymce.ui.Control
 */
define(
  'tinymce.core.ui.MenuItem',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.Factory",
    "tinymce.core.Env",
    "tinymce.core.util.Delay"
  ],
  function (Widget, Factory, Env, Delay) {
    "use strict";

    return Widget.extend({
      Defaults: {
        border: 0,
        role: 'menuitem'
      },

      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Boolean} selectable Selectable menu.
       * @setting {Array} menu Submenu array with items.
       * @setting {String} shortcut Shortcut to display for menu item. Example: Ctrl+X
       */
      init: function (settings) {
        var self = this, text;

        self._super(settings);

        settings = self.settings;

        self.classes.add('menu-item');

        if (settings.menu) {
          self.classes.add('menu-item-expand');
        }

        if (settings.preview) {
          self.classes.add('menu-item-preview');
        }

        text = self.state.get('text');
        if (text === '-' || text === '|') {
          self.classes.add('menu-item-sep');
          self.aria('role', 'separator');
          self.state.set('text', '-');
        }

        if (settings.selectable) {
          self.aria('role', 'menuitemcheckbox');
          self.classes.add('menu-item-checkbox');
          settings.icon = 'selected';
        }

        if (!settings.preview && !settings.selectable) {
          self.classes.add('menu-item-normal');
        }

        self.on('mousedown', function (e) {
          e.preventDefault();
        });

        if (settings.menu && !settings.ariaHideMenu) {
          self.aria('haspopup', true);
        }
      },

      /**
       * Returns true/false if the menuitem has sub menu.
       *
       * @method hasMenus
       * @return {Boolean} True/false state if it has submenu.
       */
      hasMenus: function () {
        return !!this.settings.menu;
      },

      /**
       * Shows the menu for the menu item.
       *
       * @method showMenu
       */
      showMenu: function () {
        var self = this, settings = self.settings, menu, parent = self.parent();

        parent.items().each(function (ctrl) {
          if (ctrl !== self) {
            ctrl.hideMenu();
          }
        });

        if (settings.menu) {
          menu = self.menu;

          if (!menu) {
            menu = settings.menu;

            // Is menu array then auto constuct menu control
            if (menu.length) {
              menu = {
                type: 'menu',
                items: menu
              };
            } else {
              menu.type = menu.type || 'menu';
            }

            if (parent.settings.itemDefaults) {
              menu.itemDefaults = parent.settings.itemDefaults;
            }

            menu = self.menu = Factory.create(menu).parent(self).renderTo();
            menu.reflow();
            menu.on('cancel', function (e) {
              e.stopPropagation();
              self.focus();
              menu.hide();
            });
            menu.on('show hide', function (e) {
              if (e.control.items) {
                e.control.items().each(function (ctrl) {
                  ctrl.active(ctrl.settings.selected);
                });
              }
            }).fire('show');

            menu.on('hide', function (e) {
              if (e.control === menu) {
                self.classes.remove('selected');
              }
            });

            menu.submenu = true;
          } else {
            menu.show();
          }

          menu._parentMenu = parent;

          menu.classes.add('menu-sub');

          var rel = menu.testMoveRel(
            self.getEl(),
            self.isRtl() ? ['tl-tr', 'bl-br', 'tr-tl', 'br-bl'] : ['tr-tl', 'br-bl', 'tl-tr', 'bl-br']
          );

          menu.moveRel(self.getEl(), rel);
          menu.rel = rel;

          rel = 'menu-sub-' + rel;
          menu.classes.remove(menu._lastRel).add(rel);
          menu._lastRel = rel;

          self.classes.add('selected');
          self.aria('expanded', true);
        }
      },

      /**
       * Hides the menu for the menu item.
       *
       * @method hideMenu
       */
      hideMenu: function () {
        var self = this;

        if (self.menu) {
          self.menu.items().each(function (item) {
            if (item.hideMenu) {
              item.hideMenu();
            }
          });

          self.menu.hide();
          self.aria('expanded', false);
        }

        return self;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, settings = self.settings, prefix = self.classPrefix, text = self.state.get('text');
        var icon = self.settings.icon, image = '', shortcut = settings.shortcut;
        var url = self.encode(settings.url), iconHtml = '';

        // Converts shortcut format to Mac/PC variants
        function convertShortcut(shortcut) {
          var i, value, replace = {};

          if (Env.mac) {
            replace = {
              alt: '&#x2325;',
              ctrl: '&#x2318;',
              shift: '&#x21E7;',
              meta: '&#x2318;'
            };
          } else {
            replace = {
              meta: 'Ctrl'
            };
          }

          shortcut = shortcut.split('+');

          for (i = 0; i < shortcut.length; i++) {
            value = replace[shortcut[i].toLowerCase()];

            if (value) {
              shortcut[i] = value;
            }
          }

          return shortcut.join('+');
        }

        function escapeRegExp(str) {
          return str.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
        }

        function markMatches(text) {
          var match = settings.match || '';

          return match ? text.replace(new RegExp(escapeRegExp(match), 'gi'), function (match) {
            return '!mce~match[' + match + ']mce~match!';
          }) : text;
        }

        function boldMatches(text) {
          return text.
            replace(new RegExp(escapeRegExp('!mce~match['), 'g'), '<b>').
            replace(new RegExp(escapeRegExp(']mce~match!'), 'g'), '</b>');
        }

        if (icon) {
          self.parent().classes.add('menu-has-icons');
        }

        if (settings.image) {
          image = ' style="background-image: url(\'' + settings.image + '\')"';
        }

        if (shortcut) {
          shortcut = convertShortcut(shortcut);
        }

        icon = prefix + 'ico ' + prefix + 'i-' + (self.settings.icon || 'none');
        iconHtml = (text !== '-' ? '<i class="' + icon + '"' + image + '></i>\u00a0' : '');

        text = boldMatches(self.encode(markMatches(text)));
        url = boldMatches(self.encode(markMatches(url)));

        return (
          '<div id="' + id + '" class="' + self.classes + '" tabindex="-1">' +
          iconHtml +
          (text !== '-' ? '<span id="' + id + '-text" class="' + prefix + 'text">' + text + '</span>' : '') +
          (shortcut ? '<div id="' + id + '-shortcut" class="' + prefix + 'menu-shortcut">' + shortcut + '</div>' : '') +
          (settings.menu ? '<div class="' + prefix + 'caret"></div>' : '') +
          (url ? '<div class="' + prefix + 'menu-item-link">' + url + '</div>' : '') +
          '</div>'
        );
      },

      /**
       * Gets invoked after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this, settings = self.settings;

        var textStyle = settings.textStyle;
        if (typeof textStyle == "function") {
          textStyle = textStyle.call(this);
        }

        if (textStyle) {
          var textElm = self.getEl('text');
          if (textElm) {
            textElm.setAttribute('style', textStyle);
          }
        }

        self.on('mouseenter click', function (e) {
          if (e.control === self) {
            if (!settings.menu && e.type === 'click') {
              self.fire('select');

              // Edge will crash if you stress it see #2660
              Delay.requestAnimationFrame(function () {
                self.parent().hideAll();
              });
            } else {
              self.showMenu();

              if (e.aria) {
                self.menu.focus(true);
              }
            }
          }
        });

        self._super();

        return self;
      },

      hover: function () {
        var self = this;

        self.parent().items().each(function (ctrl) {
          ctrl.classes.remove('selected');
        });

        self.classes.toggle('selected', true);

        return self;
      },

      active: function (state) {
        if (typeof state != "undefined") {
          this.aria('checked', state);
        }

        return this._super(state);
      },

      /**
       * Removes the control and it's menus.
       *
       * @method remove
       */
      remove: function () {
        this._super();

        if (this.menu) {
          this.menu.remove();
        }
      }
    });
  }
);

/**
 * Throbber.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class enables you to display a Throbber for any element.
 *
 * @-x-less Throbber.less
 * @class tinymce.ui.Throbber
 */
define(
  'tinymce.core.ui.Throbber',
  [
    "tinymce.core.dom.DomQuery",
    "tinymce.core.ui.Control",
    "tinymce.core.util.Delay"
  ],
  function ($, Control, Delay) {
    "use strict";

    /**
     * Constructs a new throbber.
     *
     * @constructor
     * @param {Element} elm DOM Html element to display throbber in.
     * @param {Boolean} inline Optional true/false state if the throbber should be appended to end of element for infinite scroll.
     */
    return function (elm, inline) {
      var self = this, state, classPrefix = Control.classPrefix, timer;

      /**
       * Shows the throbber.
       *
       * @method show
       * @param {Number} [time] Time to wait before showing.
       * @param {function} [callback] Optional callback to execute when the throbber is shown.
       * @return {tinymce.ui.Throbber} Current throbber instance.
       */
      self.show = function (time, callback) {
        function render() {
          if (state) {
            $(elm).append(
              '<div class="' + classPrefix + 'throbber' + (inline ? ' ' + classPrefix + 'throbber-inline' : '') + '"></div>'
            );

            if (callback) {
              callback();
            }
          }
        }

        self.hide();

        state = true;

        if (time) {
          timer = Delay.setTimeout(render, time);
        } else {
          render();
        }

        return self;
      };

      /**
       * Hides the throbber.
       *
       * @method hide
       * @return {tinymce.ui.Throbber} Current throbber instance.
       */
      self.hide = function () {
        var child = elm.lastChild;

        Delay.clearTimeout(timer);

        if (child && child.className.indexOf('throbber') != -1) {
          child.parentNode.removeChild(child);
        }

        state = false;

        return self;
      };
    };
  }
);

/**
 * Menu.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new menu.
 *
 * @-x-less Menu.less
 * @class tinymce.ui.Menu
 * @extends tinymce.ui.FloatPanel
 */
define(
  'tinymce.core.ui.Menu',
  [
    "tinymce.core.ui.FloatPanel",
    "tinymce.core.ui.MenuItem",
    "tinymce.core.ui.Throbber",
    "tinymce.core.util.Tools"
  ],
  function (FloatPanel, MenuItem, Throbber, Tools) {
    "use strict";

    return FloatPanel.extend({
      Defaults: {
        defaultType: 'menuitem',
        border: 1,
        layout: 'stack',
        role: 'application',
        bodyRole: 'menu',
        ariaRoot: true
      },

      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       */
      init: function (settings) {
        var self = this;

        settings.autohide = true;
        settings.constrainToViewport = true;

        if (typeof settings.items === 'function') {
          settings.itemsFactory = settings.items;
          settings.items = [];
        }

        if (settings.itemDefaults) {
          var items = settings.items, i = items.length;

          while (i--) {
            items[i] = Tools.extend({}, settings.itemDefaults, items[i]);
          }
        }

        self._super(settings);
        self.classes.add('menu');
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        this.classes.toggle('menu-align', true);

        this._super();

        this.getEl().style.height = '';
        this.getEl('body').style.height = '';

        return this;
      },

      /**
       * Hides/closes the menu.
       *
       * @method cancel
       */
      cancel: function () {
        var self = this;

        self.hideAll();
        self.fire('select');
      },

      /**
       * Loads new items from the factory items function.
       *
       * @method load
       */
      load: function () {
        var self = this, time, factory;

        function hideThrobber() {
          if (self.throbber) {
            self.throbber.hide();
            self.throbber = null;
          }
        }

        factory = self.settings.itemsFactory;
        if (!factory) {
          return;
        }

        if (!self.throbber) {
          self.throbber = new Throbber(self.getEl('body'), true);

          if (self.items().length === 0) {
            self.throbber.show();
            self.fire('loading');
          } else {
            self.throbber.show(100, function () {
              self.items().remove();
              self.fire('loading');
            });
          }

          self.on('hide close', hideThrobber);
        }

        self.requestTime = time = new Date().getTime();

        self.settings.itemsFactory(function (items) {
          if (items.length === 0) {
            self.hide();
            return;
          }

          if (self.requestTime !== time) {
            return;
          }

          self.getEl().style.width = '';
          self.getEl('body').style.width = '';

          hideThrobber();
          self.items().remove();
          self.getEl('body').innerHTML = '';

          self.add(items);
          self.renderNew();
          self.fire('loaded');
        });
      },

      /**
       * Hide menu and all sub menus.
       *
       * @method hideAll
       */
      hideAll: function () {
        var self = this;

        this.find('menuitem').exec('hideMenu');

        return self._super();
      },

      /**
       * Invoked before the menu is rendered.
       *
       * @method preRender
       */
      preRender: function () {
        var self = this;

        self.items().each(function (ctrl) {
          var settings = ctrl.settings;

          if (settings.icon || settings.image || settings.selectable) {
            self._hasIcons = true;
            return false;
          }
        });

        if (self.settings.itemsFactory) {
          self.on('postrender', function () {
            if (self.settings.itemsFactory) {
              self.load();
            }
          });
        }

        return self._super();
      }
    });
  }
);

/**
 * ListBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new list box control.
 *
 * @-x-less ListBox.less
 * @class tinymce.ui.ListBox
 * @extends tinymce.ui.MenuButton
 */
define(
  'tinymce.core.ui.ListBox',
  [
    "tinymce.core.ui.MenuButton",
    "tinymce.core.ui.Menu"
  ],
  function (MenuButton, Menu) {
    "use strict";

    return MenuButton.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Array} values Array with values to add to list box.
       */
      init: function (settings) {
        var self = this, values, selected, selectedText, lastItemCtrl;

        function setSelected(menuValues) {
          // Try to find a selected value
          for (var i = 0; i < menuValues.length; i++) {
            selected = menuValues[i].selected || settings.value === menuValues[i].value;

            if (selected) {
              selectedText = selectedText || menuValues[i].text;
              self.state.set('value', menuValues[i].value);
              return true;
            }

            // If the value has a submenu, try to find the selected values in that menu
            if (menuValues[i].menu) {
              if (setSelected(menuValues[i].menu)) {
                return true;
              }
            }
          }
        }

        self._super(settings);
        settings = self.settings;

        self._values = values = settings.values;
        if (values) {
          if (typeof settings.value != "undefined") {
            setSelected(values);
          }

          // Default with first item
          if (!selected && values.length > 0) {
            selectedText = values[0].text;
            self.state.set('value', values[0].value);
          }

          self.state.set('menu', values);
        }

        self.state.set('text', settings.text || selectedText);

        self.classes.add('listbox');

        self.on('select', function (e) {
          var ctrl = e.control;

          if (lastItemCtrl) {
            e.lastControl = lastItemCtrl;
          }

          if (settings.multiple) {
            ctrl.active(!ctrl.active());
          } else {
            self.value(e.control.value());
          }

          lastItemCtrl = ctrl;
        });
      },

      /**
       * Getter/setter function for the control value.
       *
       * @method value
       * @param {String} [value] Value to be set.
       * @return {Boolean/tinymce.ui.ListBox} Value or self if it's a set operation.
       */
      bindStates: function () {
        var self = this;

        function activateMenuItemsByValue(menu, value) {
          if (menu instanceof Menu) {
            menu.items().each(function (ctrl) {
              if (!ctrl.hasMenus()) {
                ctrl.active(ctrl.value() === value);
              }
            });
          }
        }

        function getSelectedItem(menuValues, value) {
          var selectedItem;

          if (!menuValues) {
            return;
          }

          for (var i = 0; i < menuValues.length; i++) {
            if (menuValues[i].value === value) {
              return menuValues[i];
            }

            if (menuValues[i].menu) {
              selectedItem = getSelectedItem(menuValues[i].menu, value);
              if (selectedItem) {
                return selectedItem;
              }
            }
          }
        }

        self.on('show', function (e) {
          activateMenuItemsByValue(e.control, self.value());
        });

        self.state.on('change:value', function (e) {
          var selectedItem = getSelectedItem(self.state.get('menu'), e.value);

          if (selectedItem) {
            self.text(selectedItem.text);
          } else {
            self.text(self.settings.text);
          }
        });

        return self._super();
      }
    });
  }
);

/**
 * Radio.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new radio button.
 *
 * @-x-less Radio.less
 * @class tinymce.ui.Radio
 * @extends tinymce.ui.Checkbox
 */
define(
  'tinymce.core.ui.Radio',
  [
    "tinymce.core.ui.Checkbox"
  ],
  function (Checkbox) {
    "use strict";

    return Checkbox.extend({
      Defaults: {
        classes: "radio",
        role: "radio"
      }
    });
  }
);
/**
 * ResizeHandle.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Renders a resize handle that fires ResizeStart, Resize and ResizeEnd events.
 *
 * @-x-less ResizeHandle.less
 * @class tinymce.ui.ResizeHandle
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.ResizeHandle',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.DragHelper"
  ],
  function (Widget, DragHelper) {
    "use strict";

    return Widget.extend({
      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, prefix = self.classPrefix;

        self.classes.add('resizehandle');

        if (self.settings.direction == "both") {
          self.classes.add('resizehandle-both');
        }

        self.canFocus = false;

        return (
          '<div id="' + self._id + '" class="' + self.classes + '">' +
          '<i class="' + prefix + 'ico ' + prefix + 'i-resize"></i>' +
          '</div>'
        );
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this;

        self._super();

        self.resizeDragHelper = new DragHelper(this._id, {
          start: function () {
            self.fire('ResizeStart');
          },

          drag: function (e) {
            if (self.settings.direction != "both") {
              e.deltaX = 0;
            }

            self.fire('Resize', e);
          },

          stop: function () {
            self.fire('ResizeEnd');
          }
        });
      },

      remove: function () {
        if (this.resizeDragHelper) {
          this.resizeDragHelper.destroy();
        }

        return this._super();
      }
    });
  }
);

/**
 * SelectBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new select box control.
 *
 * @-x-less SelectBox.less
 * @class tinymce.ui.SelectBox
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.SelectBox',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    function createOptions(options) {
      var strOptions = '';
      if (options) {
        for (var i = 0; i < options.length; i++) {
          strOptions += '<option value="' + options[i] + '">' + options[i] + '</option>';
        }
      }
      return strOptions;
    }

    return Widget.extend({
      Defaults: {
        classes: "selectbox",
        role: "selectbox",
        options: []
      },
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Array} options Array with options to add to the select box.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);

        if (self.settings.size) {
          self.size = self.settings.size;
        }

        if (self.settings.options) {
          self._options = self.settings.options;
        }

        self.on('keydown', function (e) {
          var rootControl;

          if (e.keyCode == 13) {
            e.preventDefault();

            // Find root control that we can do toJSON on
            self.parents().reverse().each(function (ctrl) {
              if (ctrl.toJSON) {
                rootControl = ctrl;
                return false;
              }
            });

            // Fire event on current text box with the serialized data of the whole form
            self.fire('submit', { data: rootControl.toJSON() });
          }
        });
      },

      /**
       * Getter/setter function for the options state.
       *
       * @method options
       * @param {Array} [state] State to be set.
       * @return {Array|tinymce.ui.SelectBox} Array of string options.
       */
      options: function (state) {
        if (!arguments.length) {
          return this.state.get('options');
        }

        this.state.set('options', state);

        return this;
      },

      renderHtml: function () {
        var self = this, options, size = '';

        options = createOptions(self._options);

        if (self.size) {
          size = ' size = "' + self.size + '"';
        }

        return (
          '<select id="' + self._id + '" class="' + self.classes + '"' + size + '>' +
          options +
          '</select>'
        );
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:options', function (e) {
          self.getEl().innerHTML = createOptions(e.value);
        });

        return self._super();
      }
    });
  }
);

/**
 * Slider.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Slider control.
 *
 * @-x-less Slider.less
 * @class tinymce.ui.Slider
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Slider',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.ui.DragHelper",
    "tinymce.core.ui.DomUtils"
  ],
  function (Widget, DragHelper, DomUtils) {
    "use strict";

    function constrain(value, minVal, maxVal) {
      if (value < minVal) {
        value = minVal;
      }

      if (value > maxVal) {
        value = maxVal;
      }

      return value;
    }

    function setAriaProp(el, name, value) {
      el.setAttribute('aria-' + name, value);
    }

    function updateSliderHandle(ctrl, value) {
      var maxHandlePos, shortSizeName, sizeName, stylePosName, styleValue, handleEl;

      if (ctrl.settings.orientation == "v") {
        stylePosName = "top";
        sizeName = "height";
        shortSizeName = "h";
      } else {
        stylePosName = "left";
        sizeName = "width";
        shortSizeName = "w";
      }

      handleEl = ctrl.getEl('handle');
      maxHandlePos = (ctrl.layoutRect()[shortSizeName] || 100) - DomUtils.getSize(handleEl)[sizeName];

      styleValue = (maxHandlePos * ((value - ctrl._minValue) / (ctrl._maxValue - ctrl._minValue))) + 'px';
      handleEl.style[stylePosName] = styleValue;
      handleEl.style.height = ctrl.layoutRect().h + 'px';

      setAriaProp(handleEl, 'valuenow', value);
      setAriaProp(handleEl, 'valuetext', '' + ctrl.settings.previewFilter(value));
      setAriaProp(handleEl, 'valuemin', ctrl._minValue);
      setAriaProp(handleEl, 'valuemax', ctrl._maxValue);
    }

    return Widget.extend({
      init: function (settings) {
        var self = this;

        if (!settings.previewFilter) {
          settings.previewFilter = function (value) {
            return Math.round(value * 100) / 100.0;
          };
        }

        self._super(settings);
        self.classes.add('slider');

        if (settings.orientation == "v") {
          self.classes.add('vertical');
        }

        self._minValue = settings.minValue || 0;
        self._maxValue = settings.maxValue || 100;
        self._initValue = self.state.get('value');
      },

      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix;

        return (
          '<div id="' + id + '" class="' + self.classes + '">' +
          '<div id="' + id + '-handle" class="' + prefix + 'slider-handle" role="slider" tabindex="-1"></div>' +
          '</div>'
        );
      },

      reset: function () {
        this.value(this._initValue).repaint();
      },

      postRender: function () {
        var self = this, minValue, maxValue, screenCordName,
          stylePosName, sizeName, shortSizeName;

        function toFraction(min, max, val) {
          return (val + min) / (max - min);
        }

        function fromFraction(min, max, val) {
          return (val * (max - min)) - min;
        }

        function handleKeyboard(minValue, maxValue) {
          function alter(delta) {
            var value;

            value = self.value();
            value = fromFraction(minValue, maxValue, toFraction(minValue, maxValue, value) + (delta * 0.05));
            value = constrain(value, minValue, maxValue);

            self.value(value);

            self.fire('dragstart', { value: value });
            self.fire('drag', { value: value });
            self.fire('dragend', { value: value });
          }

          self.on('keydown', function (e) {
            switch (e.keyCode) {
              case 37:
              case 38:
                alter(-1);
                break;

              case 39:
              case 40:
                alter(1);
                break;
            }
          });
        }

        function handleDrag(minValue, maxValue, handleEl) {
          var startPos, startHandlePos, maxHandlePos, handlePos, value;

          self._dragHelper = new DragHelper(self._id, {
            handle: self._id + "-handle",

            start: function (e) {
              startPos = e[screenCordName];
              startHandlePos = parseInt(self.getEl('handle').style[stylePosName], 10);
              maxHandlePos = (self.layoutRect()[shortSizeName] || 100) - DomUtils.getSize(handleEl)[sizeName];
              self.fire('dragstart', { value: value });
            },

            drag: function (e) {
              var delta = e[screenCordName] - startPos;

              handlePos = constrain(startHandlePos + delta, 0, maxHandlePos);
              handleEl.style[stylePosName] = handlePos + 'px';

              value = minValue + (handlePos / maxHandlePos) * (maxValue - minValue);
              self.value(value);

              self.tooltip().text('' + self.settings.previewFilter(value)).show().moveRel(handleEl, 'bc tc');

              self.fire('drag', { value: value });
            },

            stop: function () {
              self.tooltip().hide();
              self.fire('dragend', { value: value });
            }
          });
        }

        minValue = self._minValue;
        maxValue = self._maxValue;

        if (self.settings.orientation == "v") {
          screenCordName = "screenY";
          stylePosName = "top";
          sizeName = "height";
          shortSizeName = "h";
        } else {
          screenCordName = "screenX";
          stylePosName = "left";
          sizeName = "width";
          shortSizeName = "w";
        }

        self._super();

        handleKeyboard(minValue, maxValue, self.getEl('handle'));
        handleDrag(minValue, maxValue, self.getEl('handle'));
      },

      repaint: function () {
        this._super();
        updateSliderHandle(this, this.value());
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:value', function (e) {
          updateSliderHandle(self, e.value);
        });

        return self._super();
      }
    });
  }
);
/**
 * Spacer.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a spacer. This control is used in flex layouts for example.
 *
 * @-x-less Spacer.less
 * @class tinymce.ui.Spacer
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.Spacer',
  [
    "tinymce.core.ui.Widget"
  ],
  function (Widget) {
    "use strict";

    return Widget.extend({
      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this;

        self.classes.add('spacer');
        self.canFocus = false;

        return '<div id="' + self._id + '" class="' + self.classes + '"></div>';
      }
    });
  }
);
/**
 * SplitButton.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a split button.
 *
 * @-x-less SplitButton.less
 * @class tinymce.ui.SplitButton
 * @extends tinymce.ui.Button
 */
define(
  'tinymce.core.ui.SplitButton',
  [
    "tinymce.core.ui.MenuButton",
    "tinymce.core.ui.DomUtils",
    "tinymce.core.dom.DomQuery"
  ],
  function (MenuButton, DomUtils, $) {
    return MenuButton.extend({
      Defaults: {
        classes: "widget btn splitbtn",
        role: "button"
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this, elm = self.getEl(), rect = self.layoutRect(), mainButtonElm, menuButtonElm;

        self._super();

        mainButtonElm = elm.firstChild;
        menuButtonElm = elm.lastChild;

        $(mainButtonElm).css({
          width: rect.w - DomUtils.getSize(menuButtonElm).width,
          height: rect.h - 2
        });

        $(menuButtonElm).css({
          height: rect.h - 2
        });

        return self;
      },

      /**
       * Sets the active menu state.
       *
       * @private
       */
      activeMenu: function (state) {
        var self = this;

        $(self.getEl().lastChild).toggleClass(self.classPrefix + 'active', state);
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, id = self._id, prefix = self.classPrefix, image;
        var icon = self.state.get('icon'), text = self.state.get('text'),
          textHtml = '';

        image = self.settings.image;
        if (image) {
          icon = 'none';

          // Support for [high dpi, low dpi] image sources
          if (typeof image != "string") {
            image = window.getSelection ? image[0] : image[1];
          }

          image = ' style="background-image: url(\'' + image + '\')"';
        } else {
          image = '';
        }

        icon = self.settings.icon ? prefix + 'ico ' + prefix + 'i-' + icon : '';

        if (text) {
          self.classes.add('btn-has-text');
          textHtml = '<span class="' + prefix + 'txt">' + self.encode(text) + '</span>';
        }

        return (
          '<div id="' + id + '" class="' + self.classes + '" role="button" tabindex="-1">' +
          '<button type="button" hidefocus="1" tabindex="-1">' +
          (icon ? '<i class="' + icon + '"' + image + '></i>' : '') +
          textHtml +
          '</button>' +
          '<button type="button" class="' + prefix + 'open" hidefocus="1" tabindex="-1">' +
          //(icon ? '<i class="' + icon + '"></i>' : '') +
          (self._menuBtnText ? (icon ? '\u00a0' : '') + self._menuBtnText : '') +
          ' <i class="' + prefix + 'caret"></i>' +
          '</button>' +
          '</div>'
        );
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this, onClickHandler = self.settings.onclick;

        self.on('click', function (e) {
          var node = e.target;

          if (e.control == this) {
            // Find clicks that is on the main button
            while (node) {
              if ((e.aria && e.aria.key != 'down') || (node.nodeName == 'BUTTON' && node.className.indexOf('open') == -1)) {
                e.stopImmediatePropagation();

                if (onClickHandler) {
                  onClickHandler.call(this, e);
                }

                return;
              }

              node = node.parentNode;
            }
          }
        });

        delete self.settings.onclick;

        return self._super();
      }
    });
  }
);
/**
 * StackLayout.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This layout uses the browsers layout when the items are blocks.
 *
 * @-x-less StackLayout.less
 * @class tinymce.ui.StackLayout
 * @extends tinymce.ui.FlowLayout
 */
define(
  'tinymce.core.ui.StackLayout',
  [
    "tinymce.core.ui.FlowLayout"
  ],
  function (FlowLayout) {
    "use strict";

    return FlowLayout.extend({
      Defaults: {
        containerClass: 'stack-layout',
        controlClass: 'stack-layout-item',
        endClass: 'break'
      },

      isNative: function () {
        return true;
      }
    });
  }
);
/**
 * TabPanel.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a tab panel control.
 *
 * @-x-less TabPanel.less
 * @class tinymce.ui.TabPanel
 * @extends tinymce.ui.Panel
 *
 * @setting {Number} activeTab Active tab index.
 */
define(
  'tinymce.core.ui.TabPanel',
  [
    "tinymce.core.ui.Panel",
    "tinymce.core.dom.DomQuery",
    "tinymce.core.ui.DomUtils"
  ],
  function (Panel, $, DomUtils) {
    "use strict";

    return Panel.extend({
      Defaults: {
        layout: 'absolute',
        defaults: {
          type: 'panel'
        }
      },

      /**
       * Activates the specified tab by index.
       *
       * @method activateTab
       * @param {Number} idx Index of the tab to activate.
       */
      activateTab: function (idx) {
        var activeTabElm;

        if (this.activeTabId) {
          activeTabElm = this.getEl(this.activeTabId);
          $(activeTabElm).removeClass(this.classPrefix + 'active');
          activeTabElm.setAttribute('aria-selected', "false");
        }

        this.activeTabId = 't' + idx;

        activeTabElm = this.getEl('t' + idx);
        activeTabElm.setAttribute('aria-selected', "true");
        $(activeTabElm).addClass(this.classPrefix + 'active');

        this.items()[idx].show().fire('showtab');
        this.reflow();

        this.items().each(function (item, i) {
          if (idx != i) {
            item.hide();
          }
        });
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, layout = self._layout, tabsHtml = '', prefix = self.classPrefix;

        self.preRender();
        layout.preRender(self);

        self.items().each(function (ctrl, i) {
          var id = self._id + '-t' + i;

          ctrl.aria('role', 'tabpanel');
          ctrl.aria('labelledby', id);

          tabsHtml += (
            '<div id="' + id + '" class="' + prefix + 'tab" ' +
            'unselectable="on" role="tab" aria-controls="' + ctrl._id + '" aria-selected="false" tabIndex="-1">' +
            self.encode(ctrl.settings.title) +
            '</div>'
          );
        });

        return (
          '<div id="' + self._id + '" class="' + self.classes + '" hidefocus="1" tabindex="-1">' +
          '<div id="' + self._id + '-head" class="' + prefix + 'tabs" role="tablist">' +
          tabsHtml +
          '</div>' +
          '<div id="' + self._id + '-body" class="' + self.bodyClasses + '">' +
          layout.renderHtml(self) +
          '</div>' +
          '</div>'
        );
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this;

        self._super();

        self.settings.activeTab = self.settings.activeTab || 0;
        self.activateTab(self.settings.activeTab);

        this.on('click', function (e) {
          var targetParent = e.target.parentNode;

          if (targetParent && targetParent.id == self._id + '-head') {
            var i = targetParent.childNodes.length;

            while (i--) {
              if (targetParent.childNodes[i] == e.target) {
                self.activateTab(i);
              }
            }
          }
        });
      },

      /**
       * Initializes the current controls layout rect.
       * This will be executed by the layout managers to determine the
       * default minWidth/minHeight etc.
       *
       * @method initLayoutRect
       * @return {Object} Layout rect instance.
       */
      initLayoutRect: function () {
        var self = this, rect, minW, minH;

        minW = DomUtils.getSize(self.getEl('head')).width;
        minW = minW < 0 ? 0 : minW;
        minH = 0;

        self.items().each(function (item) {
          minW = Math.max(minW, item.layoutRect().minW);
          minH = Math.max(minH, item.layoutRect().minH);
        });

        self.items().each(function (ctrl) {
          ctrl.settings.x = 0;
          ctrl.settings.y = 0;
          ctrl.settings.w = minW;
          ctrl.settings.h = minH;

          ctrl.layoutRect({
            x: 0,
            y: 0,
            w: minW,
            h: minH
          });
        });

        var headH = DomUtils.getSize(self.getEl('head')).height;

        self.settings.minWidth = minW;
        self.settings.minHeight = minH + headH;

        rect = self._super();
        rect.deltaH += headH;
        rect.innerH = rect.h - rect.deltaH;

        return rect;
      }
    });
  }
);

/**
 * TextBox.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Creates a new textbox.
 *
 * @-x-less TextBox.less
 * @class tinymce.ui.TextBox
 * @extends tinymce.ui.Widget
 */
define(
  'tinymce.core.ui.TextBox',
  [
    "tinymce.core.ui.Widget",
    "tinymce.core.util.Tools",
    "tinymce.core.ui.DomUtils"
  ],
  function (Widget, Tools, DomUtils) {
    return Widget.extend({
      /**
       * Constructs a instance with the specified settings.
       *
       * @constructor
       * @param {Object} settings Name/value object with settings.
       * @setting {Boolean} multiline True if the textbox is a multiline control.
       * @setting {Number} maxLength Max length for the textbox.
       * @setting {Number} size Size of the textbox in characters.
       */
      init: function (settings) {
        var self = this;

        self._super(settings);

        self.classes.add('textbox');

        if (settings.multiline) {
          self.classes.add('multiline');
        } else {
          self.on('keydown', function (e) {
            var rootControl;

            if (e.keyCode == 13) {
              e.preventDefault();

              // Find root control that we can do toJSON on
              self.parents().reverse().each(function (ctrl) {
                if (ctrl.toJSON) {
                  rootControl = ctrl;
                  return false;
                }
              });

              // Fire event on current text box with the serialized data of the whole form
              self.fire('submit', { data: rootControl.toJSON() });
            }
          });

          self.on('keyup', function (e) {
            self.state.set('value', e.target.value);
          });
        }
      },

      /**
       * Repaints the control after a layout operation.
       *
       * @method repaint
       */
      repaint: function () {
        var self = this, style, rect, borderBox, borderW, borderH = 0, lastRepaintRect;

        style = self.getEl().style;
        rect = self._layoutRect;
        lastRepaintRect = self._lastRepaintRect || {};

        // Detect old IE 7+8 add lineHeight to align caret vertically in the middle
        var doc = document;
        if (!self.settings.multiline && doc.all && (!doc.documentMode || doc.documentMode <= 8)) {
          style.lineHeight = (rect.h - borderH) + 'px';
        }

        borderBox = self.borderBox;
        borderW = borderBox.left + borderBox.right + 8;
        borderH = borderBox.top + borderBox.bottom + (self.settings.multiline ? 8 : 0);

        if (rect.x !== lastRepaintRect.x) {
          style.left = rect.x + 'px';
          lastRepaintRect.x = rect.x;
        }

        if (rect.y !== lastRepaintRect.y) {
          style.top = rect.y + 'px';
          lastRepaintRect.y = rect.y;
        }

        if (rect.w !== lastRepaintRect.w) {
          style.width = (rect.w - borderW) + 'px';
          lastRepaintRect.w = rect.w;
        }

        if (rect.h !== lastRepaintRect.h) {
          style.height = (rect.h - borderH) + 'px';
          lastRepaintRect.h = rect.h;
        }

        self._lastRepaintRect = lastRepaintRect;
        self.fire('repaint', {}, false);

        return self;
      },

      /**
       * Renders the control as a HTML string.
       *
       * @method renderHtml
       * @return {String} HTML representing the control.
       */
      renderHtml: function () {
        var self = this, settings = self.settings, attrs, elm;

        attrs = {
          id: self._id,
          hidefocus: '1'
        };

        Tools.each([
          'rows', 'spellcheck', 'maxLength', 'size', 'readonly', 'min',
          'max', 'step', 'list', 'pattern', 'placeholder', 'required', 'multiple'
        ], function (name) {
          attrs[name] = settings[name];
        });

        if (self.disabled()) {
          attrs.disabled = 'disabled';
        }

        if (settings.subtype) {
          attrs.type = settings.subtype;
        }

        elm = DomUtils.create(settings.multiline ? 'textarea' : 'input', attrs);
        elm.value = self.state.get('value');
        elm.className = self.classes;

        return elm.outerHTML;
      },

      value: function (value) {
        if (arguments.length) {
          this.state.set('value', value);
          return this;
        }

        // Make sure the real state is in sync
        if (this.state.get('rendered')) {
          this.state.set('value', this.getEl().value);
        }

        return this.state.get('value');
      },

      /**
       * Called after the control has been rendered.
       *
       * @method postRender
       */
      postRender: function () {
        var self = this;

        self.getEl().value = self.state.get('value');
        self._super();

        self.$el.on('change', function (e) {
          self.state.set('value', e.target.value);
          self.fire('change', e);
        });
      },

      bindStates: function () {
        var self = this;

        self.state.on('change:value', function (e) {
          if (self.getEl().value != e.value) {
            self.getEl().value = e.value;
          }
        });

        self.state.on('change:disabled', function (e) {
          self.getEl().disabled = e.value;
        });

        return self._super();
      },

      remove: function () {
        this.$el.off();
        this._super();
      }
    });
  }
);

/**
 * Api.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.ui.Api',
  [
    'tinymce.core.ui.Selector',
    'tinymce.core.ui.Collection',
    'tinymce.core.ui.ReflowQueue',
    'tinymce.core.ui.Control',
    'tinymce.core.ui.Factory',
    'tinymce.core.ui.KeyboardNavigation',
    'tinymce.core.ui.Container',
    'tinymce.core.ui.DragHelper',
    'tinymce.core.ui.Scrollable',
    'tinymce.core.ui.Panel',
    'tinymce.core.ui.Movable',
    'tinymce.core.ui.Resizable',
    'tinymce.core.ui.FloatPanel',
    'tinymce.core.ui.Window',
    'tinymce.core.ui.MessageBox',
    'tinymce.core.ui.Tooltip',
    'tinymce.core.ui.Widget',
    'tinymce.core.ui.Progress',
    'tinymce.core.ui.Notification',
    'tinymce.core.ui.Layout',
    'tinymce.core.ui.AbsoluteLayout',
    'tinymce.core.ui.Button',
    'tinymce.core.ui.ButtonGroup',
    'tinymce.core.ui.Checkbox',
    'tinymce.core.ui.ComboBox',
    'tinymce.core.ui.ColorBox',
    'tinymce.core.ui.PanelButton',
    'tinymce.core.ui.ColorButton',
    'tinymce.core.ui.ColorPicker',
    'tinymce.core.ui.Path',
    'tinymce.core.ui.ElementPath',
    'tinymce.core.ui.FormItem',
    'tinymce.core.ui.Form',
    'tinymce.core.ui.FieldSet',
    'tinymce.core.ui.FilePicker',
    'tinymce.core.ui.FitLayout',
    'tinymce.core.ui.FlexLayout',
    'tinymce.core.ui.FlowLayout',
    'tinymce.core.ui.FormatControls',
    'tinymce.core.ui.GridLayout',
    'tinymce.core.ui.Iframe',
    'tinymce.core.ui.InfoBox',
    'tinymce.core.ui.Label',
    'tinymce.core.ui.Toolbar',
    'tinymce.core.ui.MenuBar',
    'tinymce.core.ui.MenuButton',
    'tinymce.core.ui.MenuItem',
    'tinymce.core.ui.Throbber',
    'tinymce.core.ui.Menu',
    'tinymce.core.ui.ListBox',
    'tinymce.core.ui.Radio',
    'tinymce.core.ui.ResizeHandle',
    'tinymce.core.ui.SelectBox',
    'tinymce.core.ui.Slider',
    'tinymce.core.ui.Spacer',
    'tinymce.core.ui.SplitButton',
    'tinymce.core.ui.StackLayout',
    'tinymce.core.ui.TabPanel',
    'tinymce.core.ui.TextBox'
  ],
  function (
    Selector, Collection, ReflowQueue, Control, Factory, KeyboardNavigation, Container, DragHelper, Scrollable, Panel, Movable,
    Resizable, FloatPanel, Window, MessageBox, Tooltip, Widget, Progress, Notification, Layout, AbsoluteLayout, Button,
    ButtonGroup, Checkbox, ComboBox, ColorBox, PanelButton, ColorButton, ColorPicker, Path, ElementPath, FormItem, Form,
    FieldSet, FilePicker, FitLayout, FlexLayout, FlowLayout, FormatControls, GridLayout, Iframe, InfoBox, Label, Toolbar,
    MenuBar, MenuButton, MenuItem, Throbber, Menu, ListBox, Radio, ResizeHandle, SelectBox, Slider, Spacer, SplitButton,
    StackLayout, TabPanel, TextBox
  ) {
    "use strict";

    var registerToFactory = function (id, ref) {
      Factory.add(id.split('.').pop(), ref);
    };

    var expose = function (target, id, ref) {
      var i, fragments;

      fragments = id.split(/[.\/]/);
      for (i = 0; i < fragments.length - 1; ++i) {
        if (target[fragments[i]] === undefined) {
          target[fragments[i]] = {};
        }

        target = target[fragments[i]];
      }

      target[fragments[fragments.length - 1]] = ref;

      registerToFactory(id, ref);
    };

    var appendTo = function (target) {
      expose(target, 'ui.Selector', Selector);
      expose(target, 'ui.Collection', Collection);
      expose(target, 'ui.ReflowQueue', ReflowQueue);
      expose(target, 'ui.Control', Control);
      expose(target, 'ui.Factory', Factory);
      expose(target, 'ui.KeyboardNavigation', KeyboardNavigation);
      expose(target, 'ui.Container', Container);
      expose(target, 'ui.DragHelper', DragHelper);
      expose(target, 'ui.Scrollable', Scrollable);
      expose(target, 'ui.Panel', Panel);
      expose(target, 'ui.Movable', Movable);
      expose(target, 'ui.Resizable', Resizable);
      expose(target, 'ui.FloatPanel', FloatPanel);
      expose(target, 'ui.Window', Window);
      expose(target, 'ui.MessageBox', MessageBox);
      expose(target, 'ui.Tooltip', Tooltip);
      expose(target, 'ui.Widget', Widget);
      expose(target, 'ui.Progress', Progress);
      expose(target, 'ui.Notification', Notification);
      expose(target, 'ui.Layout', Layout);
      expose(target, 'ui.AbsoluteLayout', AbsoluteLayout);
      expose(target, 'ui.Button', Button);
      expose(target, 'ui.ButtonGroup', ButtonGroup);
      expose(target, 'ui.Checkbox', Checkbox);
      expose(target, 'ui.ComboBox', ComboBox);
      expose(target, 'ui.ColorBox', ColorBox);
      expose(target, 'ui.PanelButton', PanelButton);
      expose(target, 'ui.ColorButton', ColorButton);
      expose(target, 'ui.ColorPicker', ColorPicker);
      expose(target, 'ui.Path', Path);
      expose(target, 'ui.ElementPath', ElementPath);
      expose(target, 'ui.FormItem', FormItem);
      expose(target, 'ui.Form', Form);
      expose(target, 'ui.FieldSet', FieldSet);
      expose(target, 'ui.FilePicker', FilePicker);
      expose(target, 'ui.FitLayout', FitLayout);
      expose(target, 'ui.FlexLayout', FlexLayout);
      expose(target, 'ui.FlowLayout', FlowLayout);
      expose(target, 'ui.FormatControls', FormatControls);
      expose(target, 'ui.GridLayout', GridLayout);
      expose(target, 'ui.Iframe', Iframe);
      expose(target, 'ui.InfoBox', InfoBox);
      expose(target, 'ui.Label', Label);
      expose(target, 'ui.Toolbar', Toolbar);
      expose(target, 'ui.MenuBar', MenuBar);
      expose(target, 'ui.MenuButton', MenuButton);
      expose(target, 'ui.MenuItem', MenuItem);
      expose(target, 'ui.Throbber', Throbber);
      expose(target, 'ui.Menu', Menu);
      expose(target, 'ui.ListBox', ListBox);
      expose(target, 'ui.Radio', Radio);
      expose(target, 'ui.ResizeHandle', ResizeHandle);
      expose(target, 'ui.SelectBox', SelectBox);
      expose(target, 'ui.Slider', Slider);
      expose(target, 'ui.Spacer', Spacer);
      expose(target, 'ui.SplitButton', SplitButton);
      expose(target, 'ui.StackLayout', StackLayout);
      expose(target, 'ui.TabPanel', TabPanel);
      expose(target, 'ui.TextBox', TextBox);
      expose(target, 'ui.Api', Api);
    };

    var Api = {
      appendTo: appendTo
    };

    return Api;
  }
);
/**
 * Tinymce.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.api.Tinymce',
  [
    'tinymce.core.geom.Rect',
    'tinymce.core.util.Promise',
    'tinymce.core.util.Delay',
    'tinymce.core.Env',
    'tinymce.core.dom.EventUtils',
    'tinymce.core.dom.Sizzle',
    'tinymce.core.util.Tools',
    'tinymce.core.dom.DomQuery',
    'tinymce.core.html.Styles',
    'tinymce.core.dom.TreeWalker',
    'tinymce.core.html.Entities',
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.dom.ScriptLoader',
    'tinymce.core.AddOnManager',
    'tinymce.core.dom.RangeUtils',
    'tinymce.core.html.Node',
    'tinymce.core.html.Schema',
    'tinymce.core.html.SaxParser',
    'tinymce.core.html.DomParser',
    'tinymce.core.html.Writer',
    'tinymce.core.html.Serializer',
    'tinymce.core.dom.Serializer',
    'tinymce.core.util.VK',
    'tinymce.core.dom.ControlSelection',
    'tinymce.core.dom.BookmarkManager',
    'tinymce.core.dom.Selection',
    'tinymce.core.Formatter',
    'tinymce.core.UndoManager',
    'tinymce.core.EditorCommands',
    'tinymce.core.util.URI',
    'tinymce.core.util.Class',
    'tinymce.core.util.EventDispatcher',
    'tinymce.core.util.Observable',
    'tinymce.core.WindowManager',
    'tinymce.core.NotificationManager',
    'tinymce.core.EditorObservable',
    'tinymce.core.Shortcuts',
    'tinymce.core.Editor',
    'tinymce.core.util.I18n',
    'tinymce.core.FocusManager',
    'tinymce.core.EditorManager',
    'tinymce.core.util.XHR',
    'tinymce.core.util.JSON',
    'tinymce.core.util.JSONRequest',
    'tinymce.core.util.JSONP',
    'tinymce.core.util.LocalStorage',
    'tinymce.core.api.Compat',
    'tinymce.core.util.Color',
    'tinymce.core.ui.Api'
  ],
  function (
    Rect, Promise, Delay, Env, EventUtils, Sizzle, Tools, DomQuery, Styles, TreeWalker, Entities, DOMUtils, ScriptLoader, AddOnManager,
    RangeUtils, Node, Schema, SaxParser, DomParser, Writer, HtmlSerializer, DomSerializer, VK, ControlSelection, BookmarkManager, Selection,
    Formatter, UndoManager, EditorCommands, URI, Class, EventDispatcher, Observable, WindowManager,
    NotificationManager, EditorObservable, Shortcuts, Editor, I18n, FocusManager, EditorManager,
    XHR, JSON, JSONRequest, JSONP, LocalStorage, Compat, Color, Api
  ) {
    var tinymce = EditorManager;

    var expose = function (target, id, ref) {
      var i, fragments;

      fragments = id.split(/[.\/]/);
      for (i = 0; i < fragments.length - 1; ++i) {
        if (target[fragments[i]] === undefined) {
          target[fragments[i]] = {};
        }

        target = target[fragments[i]];
      }

      target[fragments[fragments.length - 1]] = ref;
    };

    expose(tinymce, 'geom.Rect', Rect);
    expose(tinymce, 'util.Promise', Promise);
    expose(tinymce, 'util.Delay', Delay);
    expose(tinymce, 'Env', Env);
    expose(tinymce, 'dom.EventUtils', EventUtils);
    expose(tinymce, 'dom.Sizzle', Sizzle);
    expose(tinymce, 'util.Tools', Tools);
    expose(tinymce, 'dom.DomQuery', DomQuery);
    expose(tinymce, 'html.Styles', Styles);
    expose(tinymce, 'dom.TreeWalker', TreeWalker);
    expose(tinymce, 'html.Entities', Entities);
    expose(tinymce, 'dom.DOMUtils', DOMUtils);
    expose(tinymce, 'dom.ScriptLoader', ScriptLoader);
    expose(tinymce, 'AddOnManager', AddOnManager);
    expose(tinymce, 'dom.RangeUtils', RangeUtils);
    expose(tinymce, 'html.Node', Node);
    expose(tinymce, 'html.Schema', Schema);
    expose(tinymce, 'html.SaxParser', SaxParser);
    expose(tinymce, 'html.DomParser', DomParser);
    expose(tinymce, 'html.Writer', Writer);
    expose(tinymce, 'html.Serializer', HtmlSerializer);
    expose(tinymce, 'dom.Serializer', DomSerializer);
    expose(tinymce, 'util.VK', VK);
    expose(tinymce, 'dom.ControlSelection', ControlSelection);
    expose(tinymce, 'dom.BookmarkManager', BookmarkManager);
    expose(tinymce, 'dom.Selection', Selection);
    expose(tinymce, 'Formatter', Formatter);
    expose(tinymce, 'UndoManager', UndoManager);
    expose(tinymce, 'EditorCommands', EditorCommands);
    expose(tinymce, 'util.URI', URI);
    expose(tinymce, 'util.Class', Class);
    expose(tinymce, 'util.EventDispatcher', EventDispatcher);
    expose(tinymce, 'util.Observable', Observable);
    expose(tinymce, 'WindowManager', WindowManager);
    expose(tinymce, 'NotificationManager', NotificationManager);
    expose(tinymce, 'EditorObservable', EditorObservable);
    expose(tinymce, 'Shortcuts', Shortcuts);
    expose(tinymce, 'Editor', Editor);
    expose(tinymce, 'util.I18n', I18n);
    expose(tinymce, 'FocusManager', FocusManager);
    expose(tinymce, 'EditorManager', EditorManager);
    expose(tinymce, 'util.XHR', XHR);
    expose(tinymce, 'util.JSON', JSON);
    expose(tinymce, 'util.JSONRequest', JSONRequest);
    expose(tinymce, 'util.JSONP', JSONP);
    expose(tinymce, 'util.LocalStorage', LocalStorage);
    expose(tinymce, 'Compat', Compat);
    expose(tinymce, 'util.Color', Color);

    Api.appendTo(tinymce);

    Compat.register(tinymce);

    return tinymce;
  }
);

/**
 * Register.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This registers tinymce in common module loaders.
 *
 * @private
 * @class tinymce.Register
 */
define(
  'tinymce.core.Register',
  [
  ],
  function () {
    /*eslint consistent-this: 0 */
    var context = this || window;

    var exposeToModuleLoaders = function (tinymce) {
      if (typeof context.define === "function") {
        // Bolt
        if (!context.define.amd) {
          context.define("ephox/tinymce", [], function () {
            return tinymce;
          });

          context.define("tinymce.core.EditorManager", [], function () {
            return tinymce;
          });
        }
      }

      if (typeof module === 'object') {
        /* global module */
        module.exports = tinymce;
      }
    };

    return {
      exposeToModuleLoaders: exposeToModuleLoaders
    };
  }
);

/**
 * Main.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.api.Main',
  [
    'tinymce.core.api.Tinymce',
    'tinymce.core.Register'
  ],
  function (tinymce, Register) {
    return function () {
      window.tinymce = tinymce;
      window.tinyMCE = tinymce;
      Register.exposeToModuleLoaders(tinymce);
      return tinymce;
    };
  }
);

dem('tinymce.core.api.Main')();
})();
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/*!
 * Modernizr v2.7.1
 * www.modernizr.com
 *
 * Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
 * Available under the BSD and MIT licenses: www.modernizr.com/license/
 */

/*
 * Modernizr tests which native CSS3 and HTML5 features are available in
 * the current UA and makes the results available to you in two ways:
 * as properties on a global Modernizr object, and as classes on the
 * <html> element. This information allows you to progressively enhance
 * your pages with a granular level of control over the experience.
 *
 * Modernizr has an optional (not included) conditional resource loader
 * called Modernizr.load(), based on Yepnope.js (yepnopejs.com).
 * To get a build that includes Modernizr.load(), as well as choosing
 * which tests to include, go to www.modernizr.com/download/
 *
 * Authors        Faruk Ates, Paul Irish, Alex Sexton
 * Contributors   Ryan Seddon, Ben Alman
 */


window.Modernizr = (function( window, document, undefined ) {

    var version = '2.7.1',

    Modernizr = {},

    /*>>cssclasses*/
    // option for enabling the HTML classes to be added
    enableClasses = true,
    /*>>cssclasses*/

    docElement = document.documentElement,

    /**
     * Create our "modernizr" element that we do most feature tests on.
     */
    mod = 'modernizr',
    modElem = document.createElement(mod),
    mStyle = modElem.style,

    /**
     * Create the input element for various Web Forms feature tests.
     */
    inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ ,

    /*>>smile*/
    smile = ':)',
    /*>>smile*/

    toString = {}.toString,

    // TODO :: make the prefixes more granular
    /*>>prefixes*/
    // List of property values to set for css tests. See ticket #21
    prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),
    /*>>prefixes*/

    /*>>domprefixes*/
    // Following spec is to expose vendor-specific style properties as:
    //   elem.style.WebkitBorderRadius
    // and the following would be incorrect:
    //   elem.style.webkitBorderRadius

    // Webkit ghosts their properties in lowercase but Opera & Moz do not.
    // Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
    //   erik.eae.net/archives/2008/03/10/21.48.10/

    // More here: github.com/Modernizr/Modernizr/issues/issue/21
    omPrefixes = 'Webkit Moz O ms',

    cssomPrefixes = omPrefixes.split(' '),

    domPrefixes = omPrefixes.toLowerCase().split(' '),
    /*>>domprefixes*/

    /*>>ns*/
    ns = {'svg': 'http://www.w3.org/2000/svg'},
    /*>>ns*/

    tests = {},
    inputs = {},
    attrs = {},

    classes = [],

    slice = classes.slice,

    featureName, // used in testing loop


    /*>>teststyles*/
    // Inject element with style element and some CSS rules
    injectElementWithStyles = function( rule, callback, nodes, testnames ) {

      var style, ret, node, docOverflow,
          div = document.createElement('div'),
          // After page load injecting a fake body doesn't work so check if body exists
          body = document.body,
          // IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it.
          fakeBody = body || document.createElement('body');

      if ( parseInt(nodes, 10) ) {
          // In order not to give false positives we create a node for each test
          // This also allows the method to scale for unspecified uses
          while ( nodes-- ) {
              node = document.createElement('div');
              node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
              div.appendChild(node);
          }
      }

      // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
      // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
      // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
      // msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
      // Documents served as xml will throw if using &shy; so use xml friendly encoded version. See issue #277
      style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
      div.id = mod;
      // IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
      // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
      (body ? div : fakeBody).innerHTML += style;
      fakeBody.appendChild(div);
      if ( !body ) {
          //avoid crashing IE8, if background image is used
          fakeBody.style.background = '';
          //Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
          fakeBody.style.overflow = 'hidden';
          docOverflow = docElement.style.overflow;
          docElement.style.overflow = 'hidden';
          docElement.appendChild(fakeBody);
      }

      ret = callback(div, rule);
      // If this is done after page load we don't want to remove the body so check if body exists
      if ( !body ) {
          fakeBody.parentNode.removeChild(fakeBody);
          docElement.style.overflow = docOverflow;
      } else {
          div.parentNode.removeChild(div);
      }

      return !!ret;

    },
    /*>>teststyles*/

    /*>>mq*/
    // adapted from matchMedia polyfill
    // by Scott Jehl and Paul Irish
    // gist.github.com/786768
    testMediaQuery = function( mq ) {

      var matchMedia = window.matchMedia || window.msMatchMedia;
      if ( matchMedia ) {
        return matchMedia(mq).matches;
      }

      var bool;

      injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
        bool = (window.getComputedStyle ?
                  getComputedStyle(node, null) :
                  node.currentStyle)['position'] == 'absolute';
      });

      return bool;

     },
     /*>>mq*/


    /*>>hasevent*/
    //
    // isEventSupported determines if a given element supports the given event
    // kangax.github.com/iseventsupported/
    //
    // The following results are known incorrects:
    //   Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative
    //   Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333
    //   ...
    isEventSupported = (function() {

      var TAGNAMES = {
        'select': 'input', 'change': 'input',
        'submit': 'form', 'reset': 'form',
        'error': 'img', 'load': 'img', 'abort': 'img'
      };

      function isEventSupported( eventName, element ) {

        element = element || document.createElement(TAGNAMES[eventName] || 'div');
        eventName = 'on' + eventName;

        // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
        var isSupported = eventName in element;

        if ( !isSupported ) {
          // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
          if ( !element.setAttribute ) {
            element = document.createElement('div');
          }
          if ( element.setAttribute && element.removeAttribute ) {
            element.setAttribute(eventName, '');
            isSupported = is(element[eventName], 'function');

            // If property was created, "remove it" (by setting value to `undefined`)
            if ( !is(element[eventName], 'undefined') ) {
              element[eventName] = undefined;
            }
            element.removeAttribute(eventName);
          }
        }

        element = null;
        return isSupported;
      }
      return isEventSupported;
    })(),
    /*>>hasevent*/

    // TODO :: Add flag for hasownprop ? didn't last time

    // hasOwnProperty shim by kangax needed for Safari 2.0 support
    _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp;

    if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) {
      hasOwnProp = function (object, property) {
        return _hasOwnProperty.call(object, property);
      };
    }
    else {
      hasOwnProp = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
        return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
      };
    }

    // Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
    // es5.github.com/#x15.3.4.5

    if (!Function.prototype.bind) {
      Function.prototype.bind = function bind(that) {

        var target = this;

        if (typeof target != "function") {
            throw new TypeError();
        }

        var args = slice.call(arguments, 1),
            bound = function () {

            if (this instanceof bound) {

              var F = function(){};
              F.prototype = target.prototype;
              var self = new F();

              var result = target.apply(
                  self,
                  args.concat(slice.call(arguments))
              );
              if (Object(result) === result) {
                  return result;
              }
              return self;

            } else {

              return target.apply(
                  that,
                  args.concat(slice.call(arguments))
              );

            }

        };

        return bound;
      };
    }

    /**
     * setCss applies given styles to the Modernizr DOM node.
     */
    function setCss( str ) {
        mStyle.cssText = str;
    }

    /**
     * setCssAll extrapolates all vendor-specific css strings.
     */
    function setCssAll( str1, str2 ) {
        return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
    }

    /**
     * is returns a boolean for if typeof obj is exactly type.
     */
    function is( obj, type ) {
        return typeof obj === type;
    }

    /**
     * contains returns a boolean for if substr is found within str.
     */
    function contains( str, substr ) {
        return !!~('' + str).indexOf(substr);
    }

    /*>>testprop*/

    // testProps is a generic CSS / DOM property test.

    // In testing support for a given CSS property, it's legit to test:
    //    `elem.style[styleName] !== undefined`
    // If the property is supported it will return an empty string,
    // if unsupported it will return undefined.

    // We'll take advantage of this quick test and skip setting a style
    // on our modernizr element, but instead just testing undefined vs
    // empty string.

    // Because the testing of the CSS property names (with "-", as
    // opposed to the camelCase DOM properties) is non-portable and
    // non-standard but works in WebKit and IE (but not Gecko or Opera),
    // we explicitly reject properties with dashes so that authors
    // developing in WebKit or IE first don't end up with
    // browser-specific content by accident.

    function testProps( props, prefixed ) {
        for ( var i in props ) {
            var prop = props[i];
            if ( !contains(prop, "-") && mStyle[prop] !== undefined ) {
                return prefixed == 'pfx' ? prop : true;
            }
        }
        return false;
    }
    /*>>testprop*/

    // TODO :: add testDOMProps
    /**
     * testDOMProps is a generic DOM property test; if a browser supports
     *   a certain property, it won't return undefined for it.
     */
    function testDOMProps( props, obj, elem ) {
        for ( var i in props ) {
            var item = obj[props[i]];
            if ( item !== undefined) {

                // return the property name as a string
                if (elem === false) return props[i];

                // let's bind a function
                if (is(item, 'function')){
                  // default to autobind unless override
                  return item.bind(elem || obj);
                }

                // return the unbound function or obj or value
                return item;
            }
        }
        return false;
    }

    /*>>testallprops*/
    /**
     * testPropsAll tests a list of DOM properties we want to check against.
     *   We specify literally ALL possible (known and/or likely) properties on
     *   the element including the non-vendor prefixed one, for forward-
     *   compatibility.
     */
    function testPropsAll( prop, prefixed, elem ) {

        var ucProp  = prop.charAt(0).toUpperCase() + prop.slice(1),
            props   = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');

        // did they call .prefixed('boxSizing') or are we just testing a prop?
        if(is(prefixed, "string") || is(prefixed, "undefined")) {
          return testProps(props, prefixed);

        // otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
        } else {
          props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
          return testDOMProps(props, prefixed, elem);
        }
    }
    /*>>testallprops*/


    /**
     * Tests
     * -----
     */

    // The *new* flexbox
    // dev.w3.org/csswg/css3-flexbox

    tests['flexbox'] = function() {
      return testPropsAll('flexWrap');
    };

    // The *old* flexbox
    // www.w3.org/TR/2009/WD-css3-flexbox-20090723/

    tests['flexboxlegacy'] = function() {
        return testPropsAll('boxDirection');
    };

    // On the S60 and BB Storm, getContext exists, but always returns undefined
    // so we actually have to call getContext() to verify
    // github.com/Modernizr/Modernizr/issues/issue/97/

    tests['canvas'] = function() {
        var elem = document.createElement('canvas');
        return !!(elem.getContext && elem.getContext('2d'));
    };

    tests['canvastext'] = function() {
        return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function'));
    };

    // webk.it/70117 is tracking a legit WebGL feature detect proposal

    // We do a soft detect which may false positive in order to avoid
    // an expensive context creation: bugzil.la/732441

    tests['webgl'] = function() {
        return !!window.WebGLRenderingContext;
    };

    /*
     * The Modernizr.touch test only indicates if the browser supports
     *    touch events, which does not necessarily reflect a touchscreen
     *    device, as evidenced by tablets running Windows 7 or, alas,
     *    the Palm Pre / WebOS (touch) phones.
     *
     * Additionally, Chrome (desktop) used to lie about its support on this,
     *    but that has since been rectified: crbug.com/36415
     *
     * We also test for Firefox 4 Multitouch Support.
     *
     * For more info, see: modernizr.github.com/Modernizr/touch.html
     */

    tests['touch'] = function() {
        var bool;

        if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
          bool = true;
        } else {
          injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) {
            bool = node.offsetTop === 9;
          });
        }

        return bool;
    };


    // geolocation is often considered a trivial feature detect...
    // Turns out, it's quite tricky to get right:
    //
    // Using !!navigator.geolocation does two things we don't want. It:
    //   1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513
    //   2. Disables page caching in WebKit: webk.it/43956
    //
    // Meanwhile, in Firefox < 8, an about:config setting could expose
    // a false positive that would throw an exception: bugzil.la/688158

    tests['geolocation'] = function() {
        return 'geolocation' in navigator;
    };


    tests['postmessage'] = function() {
      return !!window.postMessage;
    };


    // Chrome incognito mode used to throw an exception when using openDatabase
    // It doesn't anymore.
    tests['websqldatabase'] = function() {
      return !!window.openDatabase;
    };

    // Vendors had inconsistent prefixing with the experimental Indexed DB:
    // - Webkit's implementation is accessible through webkitIndexedDB
    // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
    // For speed, we don't test the legacy (and beta-only) indexedDB
    tests['indexedDB'] = function() {
      return !!testPropsAll("indexedDB", window);
    };

    // documentMode logic from YUI to filter out IE8 Compat Mode
    //   which false positives.
    tests['hashchange'] = function() {
      return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
    };

    // Per 1.6:
    // This used to be Modernizr.historymanagement but the longer
    // name has been deprecated in favor of a shorter and property-matching one.
    // The old API is still available in 1.6, but as of 2.0 will throw a warning,
    // and in the first release thereafter disappear entirely.
    tests['history'] = function() {
      return !!(window.history && history.pushState);
    };

    tests['draganddrop'] = function() {
        var div = document.createElement('div');
        return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
    };

    // FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10
    // will be supported until FF19 (2/12/13), at which time, ESR becomes FF17.
    // FF10 still uses prefixes, so check for it until then.
    // for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/
    tests['websockets'] = function() {
        return 'WebSocket' in window || 'MozWebSocket' in window;
    };


    // css-tricks.com/rgba-browser-support/
    tests['rgba'] = function() {
        // Set an rgba() color and check the returned value

        setCss('background-color:rgba(150,255,150,.5)');

        return contains(mStyle.backgroundColor, 'rgba');
    };

    tests['hsla'] = function() {
        // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
        //   except IE9 who retains it as hsla

        setCss('background-color:hsla(120,40%,100%,.5)');

        return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
    };

    tests['multiplebgs'] = function() {
        // Setting multiple images AND a color on the background shorthand property
        //  and then querying the style.background property value for the number of
        //  occurrences of "url(" is a reliable method for detecting ACTUAL support for this!

        setCss('background:url(https://),url(https://),red url(https://)');

        // If the UA supports multiple backgrounds, there should be three occurrences
        //   of the string "url(" in the return value for elemStyle.background

        return (/(url\s*\(.*?){3}/).test(mStyle.background);
    };



    // this will false positive in Opera Mini
    //   github.com/Modernizr/Modernizr/issues/396

    tests['backgroundsize'] = function() {
        return testPropsAll('backgroundSize');
    };

    tests['borderimage'] = function() {
        return testPropsAll('borderImage');
    };


    // Super comprehensive table about all the unique implementations of
    // border-radius: muddledramblings.com/table-of-css3-border-radius-compliance

    tests['borderradius'] = function() {
        return testPropsAll('borderRadius');
    };

    // WebOS unfortunately false positives on this test.
    tests['boxshadow'] = function() {
        return testPropsAll('boxShadow');
    };

    // FF3.0 will false positive on this test
    tests['textshadow'] = function() {
        return document.createElement('div').style.textShadow === '';
    };


    tests['opacity'] = function() {
        // Browsers that actually have CSS Opacity implemented have done so
        //  according to spec, which means their return values are within the
        //  range of [0.0,1.0] - including the leading zero.

        setCssAll('opacity:.55');

        // The non-literal . in this regex is intentional:
        //   German Chrome returns this value as 0,55
        // github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
        return (/^0.55$/).test(mStyle.opacity);
    };


    // Note, Android < 4 will pass this test, but can only animate
    //   a single property at a time
    //   daneden.me/2011/12/putting-up-with-androids-bullshit/
    tests['cssanimations'] = function() {
        return testPropsAll('animationName');
    };


    tests['csscolumns'] = function() {
        return testPropsAll('columnCount');
    };


    tests['cssgradients'] = function() {
        /**
         * For CSS Gradients syntax, please see:
         * webkit.org/blog/175/introducing-css-gradients/
         * developer.mozilla.org/en/CSS/-moz-linear-gradient
         * developer.mozilla.org/en/CSS/-moz-radial-gradient
         * dev.w3.org/csswg/css3-images/#gradients-
         */

        var str1 = 'background-image:',
            str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));',
            str3 = 'linear-gradient(left top,#9f9, white);';

        setCss(
             // legacy webkit syntax (FIXME: remove when syntax not in use anymore)
              (str1 + '-webkit- '.split(' ').join(str2 + str1) +
             // standard syntax             // trailing 'background-image:'
              prefixes.join(str3 + str1)).slice(0, -str1.length)
        );

        return contains(mStyle.backgroundImage, 'gradient');
    };


    tests['cssreflections'] = function() {
        return testPropsAll('boxReflect');
    };


    tests['csstransforms'] = function() {
        return !!testPropsAll('transform');
    };


    tests['csstransforms3d'] = function() {

        var ret = !!testPropsAll('perspective');

        // Webkit's 3D transforms are passed off to the browser's own graphics renderer.
        //   It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
        //   some conditions. As a result, Webkit typically recognizes the syntax but
        //   will sometimes throw a false positive, thus we must do a more thorough check:
        if ( ret && 'webkitPerspective' in docElement.style ) {

          // Webkit allows this media query to succeed only if the feature is enabled.
          // `@media (transform-3d),(-webkit-transform-3d){ ... }`
          injectElementWithStyles('@media (transform-3d),(-webkit-transform-3d){#modernizr{left:9px;position:absolute;height:3px;}}', function( node, rule ) {
            ret = node.offsetLeft === 9 && node.offsetHeight === 3;
          });
        }
        return ret;
    };


    tests['csstransitions'] = function() {
        return testPropsAll('transition');
    };


    /*>>fontface*/
    // @font-face detection routine by Diego Perini
    // javascript.nwbox.com/CSSSupport/

    // false positives:
    //   WebOS github.com/Modernizr/Modernizr/issues/342
    //   WP7   github.com/Modernizr/Modernizr/issues/538
    tests['fontface'] = function() {
        var bool;

        injectElementWithStyles('@font-face {font-family:"font";src:url("https://")}', function( node, rule ) {
          var style = document.getElementById('smodernizr'),
              sheet = style.sheet || style.styleSheet,
              cssText = sheet ? (sheet.cssRules && sheet.cssRules[0] ? sheet.cssRules[0].cssText : sheet.cssText || '') : '';

          bool = /src/i.test(cssText) && cssText.indexOf(rule.split(' ')[0]) === 0;
        });

        return bool;
    };
    /*>>fontface*/

    // CSS generated content detection
    tests['generatedcontent'] = function() {
        var bool;

        injectElementWithStyles(['#',mod,'{font:0/0 a}#',mod,':after{content:"',smile,'";visibility:hidden;font:3px/1 a}'].join(''), function( node ) {
          bool = node.offsetHeight >= 3;
        });

        return bool;
    };



    // These tests evaluate support of the video/audio elements, as well as
    // testing what types of content they support.
    //
    // We're using the Boolean constructor here, so that we can extend the value
    // e.g.  Modernizr.video     // true
    //       Modernizr.video.ogg // 'probably'
    //
    // Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
    //                     thx to NielsLeenheer and zcorpan

    // Note: in some older browsers, "no" was a return value instead of empty string.
    //   It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2
    //   It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5

    tests['video'] = function() {
        var elem = document.createElement('video'),
            bool = false;

        // IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
        try {
            if ( bool = !!elem.canPlayType ) {
                bool      = new Boolean(bool);
                bool.ogg  = elem.canPlayType('video/ogg; codecs="theora"')      .replace(/^no$/,'');

                // Without QuickTime, this value will be `undefined`. github.com/Modernizr/Modernizr/issues/546
                bool.h264 = elem.canPlayType('video/mp4; codecs="avc1.42E01E"') .replace(/^no$/,'');

                bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/^no$/,'');
            }

        } catch(e) { }

        return bool;
    };

    tests['audio'] = function() {
        var elem = document.createElement('audio'),
            bool = false;

        try {
            if ( bool = !!elem.canPlayType ) {
                bool      = new Boolean(bool);
                bool.ogg  = elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,'');
                bool.mp3  = elem.canPlayType('audio/mpeg;')               .replace(/^no$/,'');

                // Mimetypes accepted:
                //   developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
                //   bit.ly/iphoneoscodecs
                bool.wav  = elem.canPlayType('audio/wav; codecs="1"')     .replace(/^no$/,'');
                bool.m4a  = ( elem.canPlayType('audio/x-m4a;')            ||
                              elem.canPlayType('audio/aac;'))             .replace(/^no$/,'');
            }
        } catch(e) { }

        return bool;
    };


    // In FF4, if disabled, window.localStorage should === null.

    // Normally, we could not test that directly and need to do a
    //   `('localStorage' in window) && ` test first because otherwise Firefox will
    //   throw bugzil.la/365772 if cookies are disabled

    // Also in iOS5 Private Browsing mode, attempting to use localStorage.setItem
    // will throw the exception:
    //   QUOTA_EXCEEDED_ERRROR DOM Exception 22.
    // Peculiarly, getItem and removeItem calls do not throw.

    // Because we are forced to try/catch this, we'll go aggressive.

    // Just FWIW: IE8 Compat mode supports these features completely:
    //   www.quirksmode.org/dom/html5.html
    // But IE8 doesn't support either with local files

    tests['localstorage'] = function() {
        try {
            localStorage.setItem(mod, mod);
            localStorage.removeItem(mod);
            return true;
        } catch(e) {
            return false;
        }
    };

    tests['sessionstorage'] = function() {
        try {
            sessionStorage.setItem(mod, mod);
            sessionStorage.removeItem(mod);
            return true;
        } catch(e) {
            return false;
        }
    };


    tests['webworkers'] = function() {
        return !!window.Worker;
    };


    tests['applicationcache'] = function() {
        return !!window.applicationCache;
    };


    // Thanks to Erik Dahlstrom
    tests['svg'] = function() {
        return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect;
    };

    // specifically for SVG inline in HTML, not within XHTML
    // test page: paulirish.com/demo/inline-svg
    tests['inlinesvg'] = function() {
      var div = document.createElement('div');
      div.innerHTML = '<svg/>';
      return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
    };

    // SVG SMIL animation
    tests['smil'] = function() {
        return !!document.createElementNS && /SVGAnimate/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
    };

    // This test is only for clip paths in SVG proper, not clip paths on HTML content
    // demo: srufaculty.sru.edu/david.dailey/svg/newstuff/clipPath4.svg

    // However read the comments to dig into applying SVG clippaths to HTML content here:
    //   github.com/Modernizr/Modernizr/issues/213#issuecomment-1149491
    tests['svgclippaths'] = function() {
        return !!document.createElementNS && /SVGClipPath/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
    };

    /*>>webforms*/
    // input features and input types go directly onto the ret object, bypassing the tests loop.
    // Hold this guy to execute in a moment.
    function webforms() {
        /*>>input*/
        // Run through HTML5's new input attributes to see if the UA understands any.
        // We're using f which is the <input> element created early on
        // Mike Taylr has created a comprehensive resource for testing these attributes
        //   when applied to all input types:
        //   miketaylr.com/code/input-type-attr.html
        // spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary

        // Only input placeholder is tested while textarea's placeholder is not.
        // Currently Safari 4 and Opera 11 have support only for the input placeholder
        // Both tests are available in feature-detects/forms-placeholder.js
        Modernizr['input'] = (function( props ) {
            for ( var i = 0, len = props.length; i < len; i++ ) {
                attrs[ props[i] ] = !!(props[i] in inputElem);
            }
            if (attrs.list){
              // safari false positive's on datalist: webk.it/74252
              // see also github.com/Modernizr/Modernizr/issues/146
              attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement);
            }
            return attrs;
        })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
        /*>>input*/

        /*>>inputtypes*/
        // Run through HTML5's new input types to see if the UA understands any.
        //   This is put behind the tests runloop because it doesn't return a
        //   true/false like all the other tests; instead, it returns an object
        //   containing each input type with its corresponding true/false value

        // Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/
        Modernizr['inputtypes'] = (function(props) {

            for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {

                inputElem.setAttribute('type', inputElemType = props[i]);
                bool = inputElem.type !== 'text';

                // We first check to see if the type we give it sticks..
                // If the type does, we feed it a textual value, which shouldn't be valid.
                // If the value doesn't stick, we know there's input sanitization which infers a custom UI
                if ( bool ) {

                    inputElem.value         = smile;
                    inputElem.style.cssText = 'position:absolute;visibility:hidden;';

                    if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {

                      docElement.appendChild(inputElem);
                      defaultView = document.defaultView;

                      // Safari 2-4 allows the smiley as a value, despite making a slider
                      bool =  defaultView.getComputedStyle &&
                              defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
                              // Mobile android web browser has false positive, so must
                              // check the height to see if the widget is actually there.
                              (inputElem.offsetHeight !== 0);

                      docElement.removeChild(inputElem);

                    } else if ( /^(search|tel)$/.test(inputElemType) ){
                      // Spec doesn't define any special parsing or detectable UI
                      //   behaviors so we pass these through as true

                      // Interestingly, opera fails the earlier test, so it doesn't
                      //  even make it here.

                    } else if ( /^(url|email)$/.test(inputElemType) ) {
                      // Real url and email support comes with prebaked validation.
                      bool = inputElem.checkValidity && inputElem.checkValidity() === false;

                    } else {
                      // If the upgraded input compontent rejects the :) text, we got a winner
                      bool = inputElem.value != smile;
                    }
                }

                inputs[ props[i] ] = !!bool;
            }
            return inputs;
        })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
        /*>>inputtypes*/
    }
    /*>>webforms*/


    // End of test definitions
    // -----------------------



    // Run through all tests and detect their support in the current UA.
    // todo: hypothetically we could be doing an array of tests and use a basic loop here.
    for ( var feature in tests ) {
        if ( hasOwnProp(tests, feature) ) {
            // run the test, throw the return value into the Modernizr,
            //   then based on that boolean, define an appropriate className
            //   and push it into an array of classes we'll join later.
            featureName  = feature.toLowerCase();
            Modernizr[featureName] = tests[feature]();

            classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
        }
    }

    /*>>webforms*/
    // input tests need to run.
    Modernizr.input || webforms();
    /*>>webforms*/


    /**
     * addTest allows the user to define their own feature tests
     * the result will be added onto the Modernizr object,
     * as well as an appropriate className set on the html element
     *
     * @param feature - String naming the feature
     * @param test - Function returning true if feature is supported, false if not
     */
     Modernizr.addTest = function ( feature, test ) {
       if ( typeof feature == 'object' ) {
         for ( var key in feature ) {
           if ( hasOwnProp( feature, key ) ) {
             Modernizr.addTest( key, feature[ key ] );
           }
         }
       } else {

         feature = feature.toLowerCase();

         if ( Modernizr[feature] !== undefined ) {
           // we're going to quit if you're trying to overwrite an existing test
           // if we were to allow it, we'd do this:
           //   var re = new RegExp("\\b(no-)?" + feature + "\\b");
           //   docElement.className = docElement.className.replace( re, '' );
           // but, no rly, stuff 'em.
           return Modernizr;
         }

         test = typeof test == 'function' ? test() : test;

         if (typeof enableClasses !== "undefined" && enableClasses) {
           docElement.className += ' ' + (test ? '' : 'no-') + feature;
         }
         Modernizr[feature] = test;

       }

       return Modernizr; // allow chaining.
     };


    // Reset modElem.cssText to nothing to reduce memory footprint.
    setCss('');
    modElem = inputElem = null;

    /*>>shiv*/
    /**
     * @preserve HTML5 Shiv prev3.7.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
     */
    ;(function(window, document) {
        /*jshint evil:true */
        /** version */
        var version = '3.7.0';

        /** Preset options */
        var options = window.html5 || {};

        /** Used to skip problem elements */
        var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;

        /** Not all elements can be cloned in IE **/
        var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;

        /** Detect whether the browser supports default html5 styles */
        var supportsHtml5Styles;

        /** Name of the expando, to work with multiple documents or to re-shiv one document */
        var expando = '_html5shiv';

        /** The id for the the documents expando */
        var expanID = 0;

        /** Cached data for each document */
        var expandoData = {};

        /** Detect whether the browser supports unknown elements */
        var supportsUnknownElements;

        (function() {
          try {
            var a = document.createElement('a');
            a.innerHTML = '<xyz></xyz>';
            //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
            supportsHtml5Styles = ('hidden' in a);

            supportsUnknownElements = a.childNodes.length == 1 || (function() {
              // assign a false positive if unable to shiv
              (document.createElement)('a');
              var frag = document.createDocumentFragment();
              return (
                typeof frag.cloneNode == 'undefined' ||
                typeof frag.createDocumentFragment == 'undefined' ||
                typeof frag.createElement == 'undefined'
              );
            }());
          } catch(e) {
            // assign a false positive if detection fails => unable to shiv
            supportsHtml5Styles = true;
            supportsUnknownElements = true;
          }

        }());

        /*--------------------------------------------------------------------------*/

        /**
         * Creates a style sheet with the given CSS text and adds it to the document.
         * @private
         * @param {Document} ownerDocument The document.
         * @param {String} cssText The CSS text.
         * @returns {StyleSheet} The style element.
         */
        function addStyleSheet(ownerDocument, cssText) {
          var p = ownerDocument.createElement('p'),
          parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;

          p.innerHTML = 'x<style>' + cssText + '</style>';
          return parent.insertBefore(p.lastChild, parent.firstChild);
        }

        /**
         * Returns the value of `html5.elements` as an array.
         * @private
         * @returns {Array} An array of shived element node names.
         */
        function getElements() {
          var elements = html5.elements;
          return typeof elements == 'string' ? elements.split(' ') : elements;
        }

        /**
         * Returns the data associated to the given document
         * @private
         * @param {Document} ownerDocument The document.
         * @returns {Object} An object of data.
         */
        function getExpandoData(ownerDocument) {
          var data = expandoData[ownerDocument[expando]];
          if (!data) {
            data = {};
            expanID++;
            ownerDocument[expando] = expanID;
            expandoData[expanID] = data;
          }
          return data;
        }

        /**
         * returns a shived element for the given nodeName and document
         * @memberOf html5
         * @param {String} nodeName name of the element
         * @param {Document} ownerDocument The context document.
         * @returns {Object} The shived element.
         */
        function createElement(nodeName, ownerDocument, data){
          if (!ownerDocument) {
            ownerDocument = document;
          }
          if(supportsUnknownElements){
            return ownerDocument.createElement(nodeName);
          }
          if (!data) {
            data = getExpandoData(ownerDocument);
          }
          var node;

          if (data.cache[nodeName]) {
            node = data.cache[nodeName].cloneNode();
          } else if (saveClones.test(nodeName)) {
            node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
          } else {
            node = data.createElem(nodeName);
          }

          // Avoid adding some elements to fragments in IE < 9 because
          // * Attributes like `name` or `type` cannot be set/changed once an element
          //   is inserted into a document/fragment
          // * Link elements with `src` attributes that are inaccessible, as with
          //   a 403 response, will cause the tab/window to crash
          // * Script elements appended to fragments will execute when their `src`
          //   or `text` property is set
          return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
        }

        /**
         * returns a shived DocumentFragment for the given document
         * @memberOf html5
         * @param {Document} ownerDocument The context document.
         * @returns {Object} The shived DocumentFragment.
         */
        function createDocumentFragment(ownerDocument, data){
          if (!ownerDocument) {
            ownerDocument = document;
          }
          if(supportsUnknownElements){
            return ownerDocument.createDocumentFragment();
          }
          data = data || getExpandoData(ownerDocument);
          var clone = data.frag.cloneNode(),
          i = 0,
          elems = getElements(),
          l = elems.length;
          for(;i<l;i++){
            clone.createElement(elems[i]);
          }
          return clone;
        }

        /**
         * Shivs the `createElement` and `createDocumentFragment` methods of the document.
         * @private
         * @param {Document|DocumentFragment} ownerDocument The document.
         * @param {Object} data of the document.
         */
        function shivMethods(ownerDocument, data) {
          if (!data.cache) {
            data.cache = {};
            data.createElem = ownerDocument.createElement;
            data.createFrag = ownerDocument.createDocumentFragment;
            data.frag = data.createFrag();
          }


          ownerDocument.createElement = function(nodeName) {
            //abort shiv
            if (!html5.shivMethods) {
              return data.createElem(nodeName);
            }
            return createElement(nodeName, ownerDocument, data);
          };

          ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
                                                          'var n=f.cloneNode(),c=n.createElement;' +
                                                          'h.shivMethods&&(' +
                                                          // unroll the `createElement` calls
                                                          getElements().join().replace(/[\w\-]+/g, function(nodeName) {
            data.createElem(nodeName);
            data.frag.createElement(nodeName);
            return 'c("' + nodeName + '")';
          }) +
            ');return n}'
                                                         )(html5, data.frag);
        }

        /*--------------------------------------------------------------------------*/

        /**
         * Shivs the given document.
         * @memberOf html5
         * @param {Document} ownerDocument The document to shiv.
         * @returns {Document} The shived document.
         */
        function shivDocument(ownerDocument) {
          if (!ownerDocument) {
            ownerDocument = document;
          }
          var data = getExpandoData(ownerDocument);

          if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
            data.hasCSS = !!addStyleSheet(ownerDocument,
                                          // corrects block display not defined in IE6/7/8/9
                                          'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
                                            // adds styling not present in IE6/7/8/9
                                            'mark{background:#FF0;color:#000}' +
                                            // hides non-rendered elements
                                            'template{display:none}'
                                         );
          }
          if (!supportsUnknownElements) {
            shivMethods(ownerDocument, data);
          }
          return ownerDocument;
        }

        /*--------------------------------------------------------------------------*/

        /**
         * The `html5` object is exposed so that more elements can be shived and
         * existing shiving can be detected on iframes.
         * @type Object
         * @example
         *
         * // options can be changed before the script is included
         * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
         */
        var html5 = {

          /**
           * An array or space separated string of node names of the elements to shiv.
           * @memberOf html5
           * @type Array|String
           */
          'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video',

          /**
           * current version of html5shiv
           */
          'version': version,

          /**
           * A flag to indicate that the HTML5 style sheet should be inserted.
           * @memberOf html5
           * @type Boolean
           */
          'shivCSS': (options.shivCSS !== false),

          /**
           * Is equal to true if a browser supports creating unknown/HTML5 elements
           * @memberOf html5
           * @type boolean
           */
          'supportsUnknownElements': supportsUnknownElements,

          /**
           * A flag to indicate that the document's `createElement` and `createDocumentFragment`
           * methods should be overwritten.
           * @memberOf html5
           * @type Boolean
           */
          'shivMethods': (options.shivMethods !== false),

          /**
           * A string to describe the type of `html5` object ("default" or "default print").
           * @memberOf html5
           * @type String
           */
          'type': 'default',

          // shivs the document according to the specified `html5` object options
          'shivDocument': shivDocument,

          //creates a shived element
          createElement: createElement,

          //creates a shived documentFragment
          createDocumentFragment: createDocumentFragment
        };

        /*--------------------------------------------------------------------------*/

        // expose html5
        window.html5 = html5;

        // shiv the document
        shivDocument(document);

    }(this, document));
    /*>>shiv*/

    // Assign private properties to the return object with prefix
    Modernizr._version      = version;

    // expose these for the plugin API. Look in the source for how to join() them against your input
    /*>>prefixes*/
    Modernizr._prefixes     = prefixes;
    /*>>prefixes*/
    /*>>domprefixes*/
    Modernizr._domPrefixes  = domPrefixes;
    Modernizr._cssomPrefixes  = cssomPrefixes;
    /*>>domprefixes*/

    /*>>mq*/
    // Modernizr.mq tests a given media query, live against the current state of the window
    // A few important notes:
    //   * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
    //   * A max-width or orientation query will be evaluated against the current state, which may change later.
    //   * You must specify values. Eg. If you are testing support for the min-width media query use:
    //       Modernizr.mq('(min-width:0)')
    // usage:
    // Modernizr.mq('only screen and (max-width:768)')
    Modernizr.mq            = testMediaQuery;
    /*>>mq*/

    /*>>hasevent*/
    // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
    // Modernizr.hasEvent('gesturestart', elem)
    Modernizr.hasEvent      = isEventSupported;
    /*>>hasevent*/

    /*>>testprop*/
    // Modernizr.testProp() investigates whether a given style property is recognized
    // Note that the property names must be provided in the camelCase variant.
    // Modernizr.testProp('pointerEvents')
    Modernizr.testProp      = function(prop){
        return testProps([prop]);
    };
    /*>>testprop*/

    /*>>testallprops*/
    // Modernizr.testAllProps() investigates whether a given style property,
    //   or any of its vendor-prefixed variants, is recognized
    // Note that the property names must be provided in the camelCase variant.
    // Modernizr.testAllProps('boxSizing')
    Modernizr.testAllProps  = testPropsAll;
    /*>>testallprops*/


    /*>>teststyles*/
    // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
    // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
    Modernizr.testStyles    = injectElementWithStyles;
    /*>>teststyles*/


    /*>>prefixed*/
    // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
    // Modernizr.prefixed('boxSizing') // 'MozBoxSizing'

    // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
    // Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
    //
    //     str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');

    // If you're trying to ascertain which transition end event to bind to, you might do something like...
    //
    //     var transEndEventNames = {
    //       'WebkitTransition' : 'webkitTransitionEnd',
    //       'MozTransition'    : 'transitionend',
    //       'OTransition'      : 'oTransitionEnd',
    //       'msTransition'     : 'MSTransitionEnd',
    //       'transition'       : 'transitionend'
    //     },
    //     transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];

    Modernizr.prefixed      = function(prop, obj, elem){
      if(!obj) {
        return testPropsAll(prop, 'pfx');
      } else {
        // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
        return testPropsAll(prop, obj, elem);
      }
    };
    /*>>prefixed*/


    /*>>cssclasses*/
    // Remove "no-js" class from <html> element, if it exists:
    docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +

                            // Add the new classes to the <html> element.
                            (enableClasses ? ' js ' + classes.join(' ') : '');
    /*>>cssclasses*/

    return Modernizr;

})(this, this.document);
/*
 Leaflet 1.0.3, a JS library for interactive maps. http://leafletjs.com
 (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade
*/

(function (window, document, undefined) {
var L = {
	version: "1.0.3"
};

function expose() {
	var oldL = window.L;

	L.noConflict = function () {
		window.L = oldL;
		return this;
	};

	window.L = L;
}

// define Leaflet for Node module pattern loaders, including Browserify
if (typeof module === 'object' && typeof module.exports === 'object') {
	module.exports = L;

// define Leaflet as an AMD module
} else if (typeof define === 'function' && define.amd) {
	define(L);
}

// define Leaflet as a global L variable, saving the original L to restore later if needed
if (typeof window !== 'undefined') {
	expose();
}



/*
 * @namespace Util
 *
 * Various utility functions, used by Leaflet internally.
 */

L.Util = {

	// @function extend(dest: Object, src?: Object): Object
	// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.
	extend: function (dest) {
		var i, j, len, src;

		for (j = 1, len = arguments.length; j < len; j++) {
			src = arguments[j];
			for (i in src) {
				dest[i] = src[i];
			}
		}
		return dest;
	},

	// @function create(proto: Object, properties?: Object): Object
	// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
	create: Object.create || (function () {
		function F() {}
		return function (proto) {
			F.prototype = proto;
			return new F();
		};
	})(),

	// @function bind(fn: Function, …): Function
	// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
	// Has a `L.bind()` shortcut.
	bind: function (fn, obj) {
		var slice = Array.prototype.slice;

		if (fn.bind) {
			return fn.bind.apply(fn, slice.call(arguments, 1));
		}

		var args = slice.call(arguments, 2);

		return function () {
			return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
		};
	},

	// @function stamp(obj: Object): Number
	// Returns the unique ID of an object, assiging it one if it doesn't have it.
	stamp: function (obj) {
		/*eslint-disable */
		obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;
		return obj._leaflet_id;
		/*eslint-enable */
	},

	// @property lastId: Number
	// Last unique ID used by [`stamp()`](#util-stamp)
	lastId: 0,

	// @function throttle(fn: Function, time: Number, context: Object): Function
	// Returns a function which executes function `fn` with the given scope `context`
	// (so that the `this` keyword refers to `context` inside `fn`'s code). The function
	// `fn` will be called no more than one time per given amount of `time`. The arguments
	// received by the bound function will be any arguments passed when binding the
	// function, followed by any arguments passed when invoking the bound function.
	// Has an `L.bind` shortcut.
	throttle: function (fn, time, context) {
		var lock, args, wrapperFn, later;

		later = function () {
			// reset lock and call if queued
			lock = false;
			if (args) {
				wrapperFn.apply(context, args);
				args = false;
			}
		};

		wrapperFn = function () {
			if (lock) {
				// called too soon, queue to call later
				args = arguments;

			} else {
				// call and lock until later
				fn.apply(context, arguments);
				setTimeout(later, time);
				lock = true;
			}
		};

		return wrapperFn;
	},

	// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number
	// Returns the number `num` modulo `range` in such a way so it lies within
	// `range[0]` and `range[1]`. The returned value will be always smaller than
	// `range[1]` unless `includeMax` is set to `true`.
	wrapNum: function (x, range, includeMax) {
		var max = range[1],
		    min = range[0],
		    d = max - min;
		return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
	},

	// @function falseFn(): Function
	// Returns a function which always returns `false`.
	falseFn: function () { return false; },

	// @function formatNum(num: Number, digits?: Number): Number
	// Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default.
	formatNum: function (num, digits) {
		var pow = Math.pow(10, digits || 5);
		return Math.round(num * pow) / pow;
	},

	// @function trim(str: String): String
	// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)
	trim: function (str) {
		return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
	},

	// @function splitWords(str: String): String[]
	// Trims and splits the string on whitespace and returns the array of parts.
	splitWords: function (str) {
		return L.Util.trim(str).split(/\s+/);
	},

	// @function setOptions(obj: Object, options: Object): Object
	// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.
	setOptions: function (obj, options) {
		if (!obj.hasOwnProperty('options')) {
			obj.options = obj.options ? L.Util.create(obj.options) : {};
		}
		for (var i in options) {
			obj.options[i] = options[i];
		}
		return obj.options;
	},

	// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String
	// Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}`
	// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will
	// be appended at the end. If `uppercase` is `true`, the parameter names will
	// be uppercased (e.g. `'?A=foo&B=bar'`)
	getParamString: function (obj, existingUrl, uppercase) {
		var params = [];
		for (var i in obj) {
			params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
		}
		return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
	},

	// @function template(str: String, data: Object): String
	// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`
	// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string
	// `('Hello foo, bar')`. You can also specify functions instead of strings for
	// data values — they will be evaluated passing `data` as an argument.
	template: function (str, data) {
		return str.replace(L.Util.templateRe, function (str, key) {
			var value = data[key];

			if (value === undefined) {
				throw new Error('No value provided for variable ' + str);

			} else if (typeof value === 'function') {
				value = value(data);
			}
			return value;
		});
	},

	templateRe: /\{ *([\w_\-]+) *\}/g,

	// @function isArray(obj): Boolean
	// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
	isArray: Array.isArray || function (obj) {
		return (Object.prototype.toString.call(obj) === '[object Array]');
	},

	// @function indexOf(array: Array, el: Object): Number
	// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)
	indexOf: function (array, el) {
		for (var i = 0; i < array.length; i++) {
			if (array[i] === el) { return i; }
		}
		return -1;
	},

	// @property emptyImageUrl: String
	// Data URI string containing a base64-encoded empty GIF image.
	// Used as a hack to free memory from unused images on WebKit-powered
	// mobile devices (by setting image `src` to this string).
	emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
};

(function () {
	// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/

	function getPrefixed(name) {
		return window['webkit' + name] || window['moz' + name] || window['ms' + name];
	}

	var lastTime = 0;

	// fallback for IE 7-8
	function timeoutDefer(fn) {
		var time = +new Date(),
		    timeToCall = Math.max(0, 16 - (time - lastTime));

		lastTime = time + timeToCall;
		return window.setTimeout(fn, timeToCall);
	}

	var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,
	    cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
	               getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };


	// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number
	// Schedules `fn` to be executed when the browser repaints. `fn` is bound to
	// `context` if given. When `immediate` is set, `fn` is called immediately if
	// the browser doesn't have native support for
	// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),
	// otherwise it's delayed. Returns a request ID that can be used to cancel the request.
	L.Util.requestAnimFrame = function (fn, context, immediate) {
		if (immediate && requestFn === timeoutDefer) {
			fn.call(context);
		} else {
			return requestFn.call(window, L.bind(fn, context));
		}
	};

	// @function cancelAnimFrame(id: Number): undefined
	// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).
	L.Util.cancelAnimFrame = function (id) {
		if (id) {
			cancelFn.call(window, id);
		}
	};
})();

// shortcuts for most used utility functions
L.extend = L.Util.extend;
L.bind = L.Util.bind;
L.stamp = L.Util.stamp;
L.setOptions = L.Util.setOptions;




// @class Class
// @aka L.Class

// @section
// @uninheritable

// Thanks to John Resig and Dean Edwards for inspiration!

L.Class = function () {};

L.Class.extend = function (props) {

	// @function extend(props: Object): Function
	// [Extends the current class](#class-inheritance) given the properties to be included.
	// Returns a Javascript function that is a class constructor (to be called with `new`).
	var NewClass = function () {

		// call the constructor
		if (this.initialize) {
			this.initialize.apply(this, arguments);
		}

		// call all constructor hooks
		this.callInitHooks();
	};

	var parentProto = NewClass.__super__ = this.prototype;

	var proto = L.Util.create(parentProto);
	proto.constructor = NewClass;

	NewClass.prototype = proto;

	// inherit parent's statics
	for (var i in this) {
		if (this.hasOwnProperty(i) && i !== 'prototype') {
			NewClass[i] = this[i];
		}
	}

	// mix static properties into the class
	if (props.statics) {
		L.extend(NewClass, props.statics);
		delete props.statics;
	}

	// mix includes into the prototype
	if (props.includes) {
		L.Util.extend.apply(null, [proto].concat(props.includes));
		delete props.includes;
	}

	// merge options
	if (proto.options) {
		props.options = L.Util.extend(L.Util.create(proto.options), props.options);
	}

	// mix given properties into the prototype
	L.extend(proto, props);

	proto._initHooks = [];

	// add method for calling all hooks
	proto.callInitHooks = function () {

		if (this._initHooksCalled) { return; }

		if (parentProto.callInitHooks) {
			parentProto.callInitHooks.call(this);
		}

		this._initHooksCalled = true;

		for (var i = 0, len = proto._initHooks.length; i < len; i++) {
			proto._initHooks[i].call(this);
		}
	};

	return NewClass;
};


// @function include(properties: Object): this
// [Includes a mixin](#class-includes) into the current class.
L.Class.include = function (props) {
	L.extend(this.prototype, props);
	return this;
};

// @function mergeOptions(options: Object): this
// [Merges `options`](#class-options) into the defaults of the class.
L.Class.mergeOptions = function (options) {
	L.extend(this.prototype.options, options);
	return this;
};

// @function addInitHook(fn: Function): this
// Adds a [constructor hook](#class-constructor-hooks) to the class.
L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
	var args = Array.prototype.slice.call(arguments, 1);

	var init = typeof fn === 'function' ? fn : function () {
		this[fn].apply(this, args);
	};

	this.prototype._initHooks = this.prototype._initHooks || [];
	this.prototype._initHooks.push(init);
	return this;
};



/*
 * @class Evented
 * @aka L.Evented
 * @inherits Class
 *
 * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).
 *
 * @example
 *
 * ```js
 * map.on('click', function(e) {
 * 	alert(e.latlng);
 * } );
 * ```
 *
 * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:
 *
 * ```js
 * function onClick(e) { ... }
 *
 * map.on('click', onClick);
 * map.off('click', onClick);
 * ```
 */


L.Evented = L.Class.extend({

	/* @method on(type: String, fn: Function, context?: Object): this
	 * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).
	 *
	 * @alternative
	 * @method on(eventMap: Object): this
	 * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
	 */
	on: function (types, fn, context) {

		// types can be a map of types/handlers
		if (typeof types === 'object') {
			for (var type in types) {
				// we don't process space-separated events here for performance;
				// it's a hot path since Layer uses the on(obj) syntax
				this._on(type, types[type], fn);
			}

		} else {
			// types can be a string of space-separated words
			types = L.Util.splitWords(types);

			for (var i = 0, len = types.length; i < len; i++) {
				this._on(types[i], fn, context);
			}
		}

		return this;
	},

	/* @method off(type: String, fn?: Function, context?: Object): this
	 * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.
	 *
	 * @alternative
	 * @method off(eventMap: Object): this
	 * Removes a set of type/listener pairs.
	 *
	 * @alternative
	 * @method off: this
	 * Removes all listeners to all events on the object.
	 */
	off: function (types, fn, context) {

		if (!types) {
			// clear all listeners if called without arguments
			delete this._events;

		} else if (typeof types === 'object') {
			for (var type in types) {
				this._off(type, types[type], fn);
			}

		} else {
			types = L.Util.splitWords(types);

			for (var i = 0, len = types.length; i < len; i++) {
				this._off(types[i], fn, context);
			}
		}

		return this;
	},

	// attach listener (without syntactic sugar now)
	_on: function (type, fn, context) {
		this._events = this._events || {};

		/* get/init listeners for type */
		var typeListeners = this._events[type];
		if (!typeListeners) {
			typeListeners = [];
			this._events[type] = typeListeners;
		}

		if (context === this) {
			// Less memory footprint.
			context = undefined;
		}
		var newListener = {fn: fn, ctx: context},
		    listeners = typeListeners;

		// check if fn already there
		for (var i = 0, len = listeners.length; i < len; i++) {
			if (listeners[i].fn === fn && listeners[i].ctx === context) {
				return;
			}
		}

		listeners.push(newListener);
	},

	_off: function (type, fn, context) {
		var listeners,
		    i,
		    len;

		if (!this._events) { return; }

		listeners = this._events[type];

		if (!listeners) {
			return;
		}

		if (!fn) {
			// Set all removed listeners to noop so they are not called if remove happens in fire
			for (i = 0, len = listeners.length; i < len; i++) {
				listeners[i].fn = L.Util.falseFn;
			}
			// clear all listeners for a type if function isn't specified
			delete this._events[type];
			return;
		}

		if (context === this) {
			context = undefined;
		}

		if (listeners) {

			// find fn and remove it
			for (i = 0, len = listeners.length; i < len; i++) {
				var l = listeners[i];
				if (l.ctx !== context) { continue; }
				if (l.fn === fn) {

					// set the removed listener to noop so that's not called if remove happens in fire
					l.fn = L.Util.falseFn;

					if (this._firingCount) {
						/* copy array in case events are being fired */
						this._events[type] = listeners = listeners.slice();
					}
					listeners.splice(i, 1);

					return;
				}
			}
		}
	},

	// @method fire(type: String, data?: Object, propagate?: Boolean): this
	// Fires an event of the specified type. You can optionally provide an data
	// object — the first argument of the listener function will contain its
	// properties. The event can optionally be propagated to event parents.
	fire: function (type, data, propagate) {
		if (!this.listens(type, propagate)) { return this; }

		var event = L.Util.extend({}, data, {type: type, target: this});

		if (this._events) {
			var listeners = this._events[type];

			if (listeners) {
				this._firingCount = (this._firingCount + 1) || 1;
				for (var i = 0, len = listeners.length; i < len; i++) {
					var l = listeners[i];
					l.fn.call(l.ctx || this, event);
				}

				this._firingCount--;
			}
		}

		if (propagate) {
			// propagate the event to parents (set with addEventParent)
			this._propagateEvent(event);
		}

		return this;
	},

	// @method listens(type: String): Boolean
	// Returns `true` if a particular event type has any listeners attached to it.
	listens: function (type, propagate) {
		var listeners = this._events && this._events[type];
		if (listeners && listeners.length) { return true; }

		if (propagate) {
			// also check parents for listeners if event propagates
			for (var id in this._eventParents) {
				if (this._eventParents[id].listens(type, propagate)) { return true; }
			}
		}
		return false;
	},

	// @method once(…): this
	// Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.
	once: function (types, fn, context) {

		if (typeof types === 'object') {
			for (var type in types) {
				this.once(type, types[type], fn);
			}
			return this;
		}

		var handler = L.bind(function () {
			this
			    .off(types, fn, context)
			    .off(types, handler, context);
		}, this);

		// add a listener that's executed once and removed after that
		return this
		    .on(types, fn, context)
		    .on(types, handler, context);
	},

	// @method addEventParent(obj: Evented): this
	// Adds an event parent - an `Evented` that will receive propagated events
	addEventParent: function (obj) {
		this._eventParents = this._eventParents || {};
		this._eventParents[L.stamp(obj)] = obj;
		return this;
	},

	// @method removeEventParent(obj: Evented): this
	// Removes an event parent, so it will stop receiving propagated events
	removeEventParent: function (obj) {
		if (this._eventParents) {
			delete this._eventParents[L.stamp(obj)];
		}
		return this;
	},

	_propagateEvent: function (e) {
		for (var id in this._eventParents) {
			this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);
		}
	}
});

var proto = L.Evented.prototype;

// aliases; we should ditch those eventually

// @method addEventListener(…): this
// Alias to [`on(…)`](#evented-on)
proto.addEventListener = proto.on;

// @method removeEventListener(…): this
// Alias to [`off(…)`](#evented-off)

// @method clearAllEventListeners(…): this
// Alias to [`off()`](#evented-off)
proto.removeEventListener = proto.clearAllEventListeners = proto.off;

// @method addOneTimeEventListener(…): this
// Alias to [`once(…)`](#evented-once)
proto.addOneTimeEventListener = proto.once;

// @method fireEvent(…): this
// Alias to [`fire(…)`](#evented-fire)
proto.fireEvent = proto.fire;

// @method hasEventListeners(…): Boolean
// Alias to [`listens(…)`](#evented-listens)
proto.hasEventListeners = proto.listens;

L.Mixin = {Events: proto};



/*
 * @namespace Browser
 * @aka L.Browser
 *
 * A namespace with static properties for browser/feature detection used by Leaflet internally.
 *
 * @example
 *
 * ```js
 * if (L.Browser.ielt9) {
 *   alert('Upgrade your browser, dude!');
 * }
 * ```
 */

(function () {

	var ua = navigator.userAgent.toLowerCase(),
	    doc = document.documentElement,

	    ie = 'ActiveXObject' in window,

	    webkit    = ua.indexOf('webkit') !== -1,
	    phantomjs = ua.indexOf('phantom') !== -1,
	    android23 = ua.search('android [23]') !== -1,
	    chrome    = ua.indexOf('chrome') !== -1,
	    gecko     = ua.indexOf('gecko') !== -1  && !webkit && !window.opera && !ie,

	    win = navigator.platform.indexOf('Win') === 0,

	    mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,
	    msPointer = !window.PointerEvent && window.MSPointerEvent,
	    pointer = window.PointerEvent || msPointer,

	    ie3d = ie && ('transition' in doc.style),
	    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
	    gecko3d = 'MozPerspective' in doc.style,
	    opera12 = 'OTransition' in doc.style;


	var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||
			(window.DocumentTouch && document instanceof window.DocumentTouch));

	L.Browser = {

		// @property ie: Boolean
		// `true` for all Internet Explorer versions (not Edge).
		ie: ie,

		// @property ielt9: Boolean
		// `true` for Internet Explorer versions less than 9.
		ielt9: ie && !document.addEventListener,

		// @property edge: Boolean
		// `true` for the Edge web browser.
		edge: 'msLaunchUri' in navigator && !('documentMode' in document),

		// @property webkit: Boolean
		// `true` for webkit-based browsers like Chrome and Safari (including mobile versions).
		webkit: webkit,

		// @property gecko: Boolean
		// `true` for gecko-based browsers like Firefox.
		gecko: gecko,

		// @property android: Boolean
		// `true` for any browser running on an Android platform.
		android: ua.indexOf('android') !== -1,

		// @property android23: Boolean
		// `true` for browsers running on Android 2 or Android 3.
		android23: android23,

		// @property chrome: Boolean
		// `true` for the Chrome browser.
		chrome: chrome,

		// @property safari: Boolean
		// `true` for the Safari browser.
		safari: !chrome && ua.indexOf('safari') !== -1,


		// @property win: Boolean
		// `true` when the browser is running in a Windows platform
		win: win,


		// @property ie3d: Boolean
		// `true` for all Internet Explorer versions supporting CSS transforms.
		ie3d: ie3d,

		// @property webkit3d: Boolean
		// `true` for webkit-based browsers supporting CSS transforms.
		webkit3d: webkit3d,

		// @property gecko3d: Boolean
		// `true` for gecko-based browsers supporting CSS transforms.
		gecko3d: gecko3d,

		// @property opera12: Boolean
		// `true` for the Opera browser supporting CSS transforms (version 12 or later).
		opera12: opera12,

		// @property any3d: Boolean
		// `true` for all browsers supporting CSS transforms.
		any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,


		// @property mobile: Boolean
		// `true` for all browsers running in a mobile device.
		mobile: mobile,

		// @property mobileWebkit: Boolean
		// `true` for all webkit-based browsers in a mobile device.
		mobileWebkit: mobile && webkit,

		// @property mobileWebkit3d: Boolean
		// `true` for all webkit-based browsers in a mobile device supporting CSS transforms.
		mobileWebkit3d: mobile && webkit3d,

		// @property mobileOpera: Boolean
		// `true` for the Opera browser in a mobile device.
		mobileOpera: mobile && window.opera,

		// @property mobileGecko: Boolean
		// `true` for gecko-based browsers running in a mobile device.
		mobileGecko: mobile && gecko,


		// @property touch: Boolean
		// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).
		// This does not necessarily mean that the browser is running in a computer with
		// a touchscreen, it only means that the browser is capable of understanding
		// touch events.
		touch: !!touch,

		// @property msPointer: Boolean
		// `true` for browsers implementing the Microsoft touch events model (notably IE10).
		msPointer: !!msPointer,

		// @property pointer: Boolean
		// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).
		pointer: !!pointer,


		// @property retina: Boolean
		// `true` for browsers on a high-resolution "retina" screen.
		retina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1
	};

}());



/*
 * @class Point
 * @aka L.Point
 *
 * Represents a point with `x` and `y` coordinates in pixels.
 *
 * @example
 *
 * ```js
 * var point = L.point(200, 300);
 * ```
 *
 * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent:
 *
 * ```js
 * map.panBy([200, 300]);
 * map.panBy(L.point(200, 300));
 * ```
 */

L.Point = function (x, y, round) {
	// @property x: Number; The `x` coordinate of the point
	this.x = (round ? Math.round(x) : x);
	// @property y: Number; The `y` coordinate of the point
	this.y = (round ? Math.round(y) : y);
};

L.Point.prototype = {

	// @method clone(): Point
	// Returns a copy of the current point.
	clone: function () {
		return new L.Point(this.x, this.y);
	},

	// @method add(otherPoint: Point): Point
	// Returns the result of addition of the current and the given points.
	add: function (point) {
		// non-destructive, returns a new point
		return this.clone()._add(L.point(point));
	},

	_add: function (point) {
		// destructive, used directly for performance in situations where it's safe to modify existing point
		this.x += point.x;
		this.y += point.y;
		return this;
	},

	// @method subtract(otherPoint: Point): Point
	// Returns the result of subtraction of the given point from the current.
	subtract: function (point) {
		return this.clone()._subtract(L.point(point));
	},

	_subtract: function (point) {
		this.x -= point.x;
		this.y -= point.y;
		return this;
	},

	// @method divideBy(num: Number): Point
	// Returns the result of division of the current point by the given number.
	divideBy: function (num) {
		return this.clone()._divideBy(num);
	},

	_divideBy: function (num) {
		this.x /= num;
		this.y /= num;
		return this;
	},

	// @method multiplyBy(num: Number): Point
	// Returns the result of multiplication of the current point by the given number.
	multiplyBy: function (num) {
		return this.clone()._multiplyBy(num);
	},

	_multiplyBy: function (num) {
		this.x *= num;
		this.y *= num;
		return this;
	},

	// @method scaleBy(scale: Point): Point
	// Multiply each coordinate of the current point by each coordinate of
	// `scale`. In linear algebra terms, multiply the point by the
	// [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)
	// defined by `scale`.
	scaleBy: function (point) {
		return new L.Point(this.x * point.x, this.y * point.y);
	},

	// @method unscaleBy(scale: Point): Point
	// Inverse of `scaleBy`. Divide each coordinate of the current point by
	// each coordinate of `scale`.
	unscaleBy: function (point) {
		return new L.Point(this.x / point.x, this.y / point.y);
	},

	// @method round(): Point
	// Returns a copy of the current point with rounded coordinates.
	round: function () {
		return this.clone()._round();
	},

	_round: function () {
		this.x = Math.round(this.x);
		this.y = Math.round(this.y);
		return this;
	},

	// @method floor(): Point
	// Returns a copy of the current point with floored coordinates (rounded down).
	floor: function () {
		return this.clone()._floor();
	},

	_floor: function () {
		this.x = Math.floor(this.x);
		this.y = Math.floor(this.y);
		return this;
	},

	// @method ceil(): Point
	// Returns a copy of the current point with ceiled coordinates (rounded up).
	ceil: function () {
		return this.clone()._ceil();
	},

	_ceil: function () {
		this.x = Math.ceil(this.x);
		this.y = Math.ceil(this.y);
		return this;
	},

	// @method distanceTo(otherPoint: Point): Number
	// Returns the cartesian distance between the current and the given points.
	distanceTo: function (point) {
		point = L.point(point);

		var x = point.x - this.x,
		    y = point.y - this.y;

		return Math.sqrt(x * x + y * y);
	},

	// @method equals(otherPoint: Point): Boolean
	// Returns `true` if the given point has the same coordinates.
	equals: function (point) {
		point = L.point(point);

		return point.x === this.x &&
		       point.y === this.y;
	},

	// @method contains(otherPoint: Point): Boolean
	// Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).
	contains: function (point) {
		point = L.point(point);

		return Math.abs(point.x) <= Math.abs(this.x) &&
		       Math.abs(point.y) <= Math.abs(this.y);
	},

	// @method toString(): String
	// Returns a string representation of the point for debugging purposes.
	toString: function () {
		return 'Point(' +
		        L.Util.formatNum(this.x) + ', ' +
		        L.Util.formatNum(this.y) + ')';
	}
};

// @factory L.point(x: Number, y: Number, round?: Boolean)
// Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values.

// @alternative
// @factory L.point(coords: Number[])
// Expects an array of the form `[x, y]` instead.

// @alternative
// @factory L.point(coords: Object)
// Expects a plain object of the form `{x: Number, y: Number}` instead.
L.point = function (x, y, round) {
	if (x instanceof L.Point) {
		return x;
	}
	if (L.Util.isArray(x)) {
		return new L.Point(x[0], x[1]);
	}
	if (x === undefined || x === null) {
		return x;
	}
	if (typeof x === 'object' && 'x' in x && 'y' in x) {
		return new L.Point(x.x, x.y);
	}
	return new L.Point(x, y, round);
};



/*
 * @class Bounds
 * @aka L.Bounds
 *
 * Represents a rectangular area in pixel coordinates.
 *
 * @example
 *
 * ```js
 * var p1 = L.point(10, 10),
 * p2 = L.point(40, 60),
 * bounds = L.bounds(p1, p2);
 * ```
 *
 * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
 *
 * ```js
 * otherBounds.intersects([[10, 10], [40, 60]]);
 * ```
 */

L.Bounds = function (a, b) {
	if (!a) { return; }

	var points = b ? [a, b] : a;

	for (var i = 0, len = points.length; i < len; i++) {
		this.extend(points[i]);
	}
};

L.Bounds.prototype = {
	// @method extend(point: Point): this
	// Extends the bounds to contain the given point.
	extend: function (point) { // (Point)
		point = L.point(point);

		// @property min: Point
		// The top left corner of the rectangle.
		// @property max: Point
		// The bottom right corner of the rectangle.
		if (!this.min && !this.max) {
			this.min = point.clone();
			this.max = point.clone();
		} else {
			this.min.x = Math.min(point.x, this.min.x);
			this.max.x = Math.max(point.x, this.max.x);
			this.min.y = Math.min(point.y, this.min.y);
			this.max.y = Math.max(point.y, this.max.y);
		}
		return this;
	},

	// @method getCenter(round?: Boolean): Point
	// Returns the center point of the bounds.
	getCenter: function (round) {
		return new L.Point(
		        (this.min.x + this.max.x) / 2,
		        (this.min.y + this.max.y) / 2, round);
	},

	// @method getBottomLeft(): Point
	// Returns the bottom-left point of the bounds.
	getBottomLeft: function () {
		return new L.Point(this.min.x, this.max.y);
	},

	// @method getTopRight(): Point
	// Returns the top-right point of the bounds.
	getTopRight: function () { // -> Point
		return new L.Point(this.max.x, this.min.y);
	},

	// @method getSize(): Point
	// Returns the size of the given bounds
	getSize: function () {
		return this.max.subtract(this.min);
	},

	// @method contains(otherBounds: Bounds): Boolean
	// Returns `true` if the rectangle contains the given one.
	// @alternative
	// @method contains(point: Point): Boolean
	// Returns `true` if the rectangle contains the given point.
	contains: function (obj) {
		var min, max;

		if (typeof obj[0] === 'number' || obj instanceof L.Point) {
			obj = L.point(obj);
		} else {
			obj = L.bounds(obj);
		}

		if (obj instanceof L.Bounds) {
			min = obj.min;
			max = obj.max;
		} else {
			min = max = obj;
		}

		return (min.x >= this.min.x) &&
		       (max.x <= this.max.x) &&
		       (min.y >= this.min.y) &&
		       (max.y <= this.max.y);
	},

	// @method intersects(otherBounds: Bounds): Boolean
	// Returns `true` if the rectangle intersects the given bounds. Two bounds
	// intersect if they have at least one point in common.
	intersects: function (bounds) { // (Bounds) -> Boolean
		bounds = L.bounds(bounds);

		var min = this.min,
		    max = this.max,
		    min2 = bounds.min,
		    max2 = bounds.max,
		    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
		    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);

		return xIntersects && yIntersects;
	},

	// @method overlaps(otherBounds: Bounds): Boolean
	// Returns `true` if the rectangle overlaps the given bounds. Two bounds
	// overlap if their intersection is an area.
	overlaps: function (bounds) { // (Bounds) -> Boolean
		bounds = L.bounds(bounds);

		var min = this.min,
		    max = this.max,
		    min2 = bounds.min,
		    max2 = bounds.max,
		    xOverlaps = (max2.x > min.x) && (min2.x < max.x),
		    yOverlaps = (max2.y > min.y) && (min2.y < max.y);

		return xOverlaps && yOverlaps;
	},

	isValid: function () {
		return !!(this.min && this.max);
	}
};


// @factory L.bounds(topLeft: Point, bottomRight: Point)
// Creates a Bounds object from two coordinates (usually top-left and bottom-right corners).
// @alternative
// @factory L.bounds(points: Point[])
// Creates a Bounds object from the points it contains
L.bounds = function (a, b) {
	if (!a || a instanceof L.Bounds) {
		return a;
	}
	return new L.Bounds(a, b);
};



/*
 * @class Transformation
 * @aka L.Transformation
 *
 * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`
 * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing
 * the reverse. Used by Leaflet in its projections code.
 *
 * @example
 *
 * ```js
 * var transformation = new L.Transformation(2, 5, -1, 10),
 * 	p = L.point(1, 2),
 * 	p2 = transformation.transform(p), //  L.point(7, 8)
 * 	p3 = transformation.untransform(p2); //  L.point(1, 2)
 * ```
 */


// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)
// Creates a `Transformation` object with the given coefficients.
L.Transformation = function (a, b, c, d) {
	this._a = a;
	this._b = b;
	this._c = c;
	this._d = d;
};

L.Transformation.prototype = {
	// @method transform(point: Point, scale?: Number): Point
	// Returns a transformed point, optionally multiplied by the given scale.
	// Only accepts actual `L.Point` instances, not arrays.
	transform: function (point, scale) { // (Point, Number) -> Point
		return this._transform(point.clone(), scale);
	},

	// destructive transform (faster)
	_transform: function (point, scale) {
		scale = scale || 1;
		point.x = scale * (this._a * point.x + this._b);
		point.y = scale * (this._c * point.y + this._d);
		return point;
	},

	// @method untransform(point: Point, scale?: Number): Point
	// Returns the reverse transformation of the given point, optionally divided
	// by the given scale. Only accepts actual `L.Point` instances, not arrays.
	untransform: function (point, scale) {
		scale = scale || 1;
		return new L.Point(
		        (point.x / scale - this._b) / this._a,
		        (point.y / scale - this._d) / this._c);
	}
};



/*
 * @namespace DomUtil
 *
 * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)
 * tree, used by Leaflet internally.
 *
 * Most functions expecting or returning a `HTMLElement` also work for
 * SVG elements. The only difference is that classes refer to CSS classes
 * in HTML and SVG classes in SVG.
 */

L.DomUtil = {

	// @function get(id: String|HTMLElement): HTMLElement
	// Returns an element given its DOM id, or returns the element itself
	// if it was passed directly.
	get: function (id) {
		return typeof id === 'string' ? document.getElementById(id) : id;
	},

	// @function getStyle(el: HTMLElement, styleAttrib: String): String
	// Returns the value for a certain style attribute on an element,
	// including computed values or values set through CSS.
	getStyle: function (el, style) {

		var value = el.style[style] || (el.currentStyle && el.currentStyle[style]);

		if ((!value || value === 'auto') && document.defaultView) {
			var css = document.defaultView.getComputedStyle(el, null);
			value = css ? css[style] : null;
		}

		return value === 'auto' ? null : value;
	},

	// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement
	// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.
	create: function (tagName, className, container) {

		var el = document.createElement(tagName);
		el.className = className || '';

		if (container) {
			container.appendChild(el);
		}

		return el;
	},

	// @function remove(el: HTMLElement)
	// Removes `el` from its parent element
	remove: function (el) {
		var parent = el.parentNode;
		if (parent) {
			parent.removeChild(el);
		}
	},

	// @function empty(el: HTMLElement)
	// Removes all of `el`'s children elements from `el`
	empty: function (el) {
		while (el.firstChild) {
			el.removeChild(el.firstChild);
		}
	},

	// @function toFront(el: HTMLElement)
	// Makes `el` the last children of its parent, so it renders in front of the other children.
	toFront: function (el) {
		el.parentNode.appendChild(el);
	},

	// @function toBack(el: HTMLElement)
	// Makes `el` the first children of its parent, so it renders back from the other children.
	toBack: function (el) {
		var parent = el.parentNode;
		parent.insertBefore(el, parent.firstChild);
	},

	// @function hasClass(el: HTMLElement, name: String): Boolean
	// Returns `true` if the element's class attribute contains `name`.
	hasClass: function (el, name) {
		if (el.classList !== undefined) {
			return el.classList.contains(name);
		}
		var className = L.DomUtil.getClass(el);
		return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
	},

	// @function addClass(el: HTMLElement, name: String)
	// Adds `name` to the element's class attribute.
	addClass: function (el, name) {
		if (el.classList !== undefined) {
			var classes = L.Util.splitWords(name);
			for (var i = 0, len = classes.length; i < len; i++) {
				el.classList.add(classes[i]);
			}
		} else if (!L.DomUtil.hasClass(el, name)) {
			var className = L.DomUtil.getClass(el);
			L.DomUtil.setClass(el, (className ? className + ' ' : '') + name);
		}
	},

	// @function removeClass(el: HTMLElement, name: String)
	// Removes `name` from the element's class attribute.
	removeClass: function (el, name) {
		if (el.classList !== undefined) {
			el.classList.remove(name);
		} else {
			L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
		}
	},

	// @function setClass(el: HTMLElement, name: String)
	// Sets the element's class.
	setClass: function (el, name) {
		if (el.className.baseVal === undefined) {
			el.className = name;
		} else {
			// in case of SVG element
			el.className.baseVal = name;
		}
	},

	// @function getClass(el: HTMLElement): String
	// Returns the element's class.
	getClass: function (el) {
		return el.className.baseVal === undefined ? el.className : el.className.baseVal;
	},

	// @function setOpacity(el: HTMLElement, opacity: Number)
	// Set the opacity of an element (including old IE support).
	// `opacity` must be a number from `0` to `1`.
	setOpacity: function (el, value) {

		if ('opacity' in el.style) {
			el.style.opacity = value;

		} else if ('filter' in el.style) {
			L.DomUtil._setOpacityIE(el, value);
		}
	},

	_setOpacityIE: function (el, value) {
		var filter = false,
		    filterName = 'DXImageTransform.Microsoft.Alpha';

		// filters collection throws an error if we try to retrieve a filter that doesn't exist
		try {
			filter = el.filters.item(filterName);
		} catch (e) {
			// don't set opacity to 1 if we haven't already set an opacity,
			// it isn't needed and breaks transparent pngs.
			if (value === 1) { return; }
		}

		value = Math.round(value * 100);

		if (filter) {
			filter.Enabled = (value !== 100);
			filter.Opacity = value;
		} else {
			el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
		}
	},

	// @function testProp(props: String[]): String|false
	// Goes through the array of style names and returns the first name
	// that is a valid style name for an element. If no such name is found,
	// it returns false. Useful for vendor-prefixed styles like `transform`.
	testProp: function (props) {

		var style = document.documentElement.style;

		for (var i = 0; i < props.length; i++) {
			if (props[i] in style) {
				return props[i];
			}
		}
		return false;
	},

	// @function setTransform(el: HTMLElement, offset: Point, scale?: Number)
	// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels
	// and optionally scaled by `scale`. Does not have an effect if the
	// browser doesn't support 3D CSS transforms.
	setTransform: function (el, offset, scale) {
		var pos = offset || new L.Point(0, 0);

		el.style[L.DomUtil.TRANSFORM] =
			(L.Browser.ie3d ?
				'translate(' + pos.x + 'px,' + pos.y + 'px)' :
				'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +
			(scale ? ' scale(' + scale + ')' : '');
	},

	// @function setPosition(el: HTMLElement, position: Point)
	// Sets the position of `el` to coordinates specified by `position`,
	// using CSS translate or top/left positioning depending on the browser
	// (used by Leaflet internally to position its layers).
	setPosition: function (el, point) { // (HTMLElement, Point[, Boolean])

		/*eslint-disable */
		el._leaflet_pos = point;
		/*eslint-enable */

		if (L.Browser.any3d) {
			L.DomUtil.setTransform(el, point);
		} else {
			el.style.left = point.x + 'px';
			el.style.top = point.y + 'px';
		}
	},

	// @function getPosition(el: HTMLElement): Point
	// Returns the coordinates of an element previously positioned with setPosition.
	getPosition: function (el) {
		// this method is only used for elements previously positioned using setPosition,
		// so it's safe to cache the position for performance

		return el._leaflet_pos || new L.Point(0, 0);
	}
};


(function () {
	// prefix style property names

	// @property TRANSFORM: String
	// Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit).
	L.DomUtil.TRANSFORM = L.DomUtil.testProp(
			['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);


	// webkitTransition comes first because some browser versions that drop vendor prefix don't do
	// the same for the transitionend event, in particular the Android 4.1 stock browser

	// @property TRANSITION: String
	// Vendor-prefixed transform style name.
	var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(
			['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);

	L.DomUtil.TRANSITION_END =
			transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';

	// @function disableTextSelection()
	// Prevents the user from generating `selectstart` DOM events, usually generated
	// when the user drags the mouse through a page with text. Used internally
	// by Leaflet to override the behaviour of any click-and-drag interaction on
	// the map. Affects drag interactions on the whole document.

	// @function enableTextSelection()
	// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).
	if ('onselectstart' in document) {
		L.DomUtil.disableTextSelection = function () {
			L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
		};
		L.DomUtil.enableTextSelection = function () {
			L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
		};

	} else {
		var userSelectProperty = L.DomUtil.testProp(
			['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);

		L.DomUtil.disableTextSelection = function () {
			if (userSelectProperty) {
				var style = document.documentElement.style;
				this._userSelect = style[userSelectProperty];
				style[userSelectProperty] = 'none';
			}
		};
		L.DomUtil.enableTextSelection = function () {
			if (userSelectProperty) {
				document.documentElement.style[userSelectProperty] = this._userSelect;
				delete this._userSelect;
			}
		};
	}

	// @function disableImageDrag()
	// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but
	// for `dragstart` DOM events, usually generated when the user drags an image.
	L.DomUtil.disableImageDrag = function () {
		L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
	};

	// @function enableImageDrag()
	// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).
	L.DomUtil.enableImageDrag = function () {
		L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
	};

	// @function preventOutline(el: HTMLElement)
	// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)
	// of the element `el` invisible. Used internally by Leaflet to prevent
	// focusable elements from displaying an outline when the user performs a
	// drag interaction on them.
	L.DomUtil.preventOutline = function (element) {
		while (element.tabIndex === -1) {
			element = element.parentNode;
		}
		if (!element || !element.style) { return; }
		L.DomUtil.restoreOutline();
		this._outlineElement = element;
		this._outlineStyle = element.style.outline;
		element.style.outline = 'none';
		L.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);
	};

	// @function restoreOutline()
	// Cancels the effects of a previous [`L.DomUtil.preventOutline`]().
	L.DomUtil.restoreOutline = function () {
		if (!this._outlineElement) { return; }
		this._outlineElement.style.outline = this._outlineStyle;
		delete this._outlineElement;
		delete this._outlineStyle;
		L.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);
	};
})();



/* @class LatLng
 * @aka L.LatLng
 *
 * Represents a geographical point with a certain latitude and longitude.
 *
 * @example
 *
 * ```
 * var latlng = L.latLng(50.5, 30.5);
 * ```
 *
 * All Leaflet methods that accept LatLng objects also accept them in a simple Array form and simple object form (unless noted otherwise), so these lines are equivalent:
 *
 * ```
 * map.panTo([50, 30]);
 * map.panTo({lon: 30, lat: 50});
 * map.panTo({lat: 50, lng: 30});
 * map.panTo(L.latLng(50, 30));
 * ```
 */

L.LatLng = function (lat, lng, alt) {
	if (isNaN(lat) || isNaN(lng)) {
		throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
	}

	// @property lat: Number
	// Latitude in degrees
	this.lat = +lat;

	// @property lng: Number
	// Longitude in degrees
	this.lng = +lng;

	// @property alt: Number
	// Altitude in meters (optional)
	if (alt !== undefined) {
		this.alt = +alt;
	}
};

L.LatLng.prototype = {
	// @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean
	// Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number.
	equals: function (obj, maxMargin) {
		if (!obj) { return false; }

		obj = L.latLng(obj);

		var margin = Math.max(
		        Math.abs(this.lat - obj.lat),
		        Math.abs(this.lng - obj.lng));

		return margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);
	},

	// @method toString(): String
	// Returns a string representation of the point (for debugging purposes).
	toString: function (precision) {
		return 'LatLng(' +
		        L.Util.formatNum(this.lat, precision) + ', ' +
		        L.Util.formatNum(this.lng, precision) + ')';
	},

	// @method distanceTo(otherLatLng: LatLng): Number
	// Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula).
	distanceTo: function (other) {
		return L.CRS.Earth.distance(this, L.latLng(other));
	},

	// @method wrap(): LatLng
	// Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees.
	wrap: function () {
		return L.CRS.Earth.wrapLatLng(this);
	},

	// @method toBounds(sizeInMeters: Number): LatLngBounds
	// Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters/2` meters apart from the `LatLng`.
	toBounds: function (sizeInMeters) {
		var latAccuracy = 180 * sizeInMeters / 40075017,
		    lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);

		return L.latLngBounds(
		        [this.lat - latAccuracy, this.lng - lngAccuracy],
		        [this.lat + latAccuracy, this.lng + lngAccuracy]);
	},

	clone: function () {
		return new L.LatLng(this.lat, this.lng, this.alt);
	}
};



// @factory L.latLng(latitude: Number, longitude: Number, altitude?: Number): LatLng
// Creates an object representing a geographical point with the given latitude and longitude (and optionally altitude).

// @alternative
// @factory L.latLng(coords: Array): LatLng
// Expects an array of the form `[Number, Number]` or `[Number, Number, Number]` instead.

// @alternative
// @factory L.latLng(coords: Object): LatLng
// Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead.

L.latLng = function (a, b, c) {
	if (a instanceof L.LatLng) {
		return a;
	}
	if (L.Util.isArray(a) && typeof a[0] !== 'object') {
		if (a.length === 3) {
			return new L.LatLng(a[0], a[1], a[2]);
		}
		if (a.length === 2) {
			return new L.LatLng(a[0], a[1]);
		}
		return null;
	}
	if (a === undefined || a === null) {
		return a;
	}
	if (typeof a === 'object' && 'lat' in a) {
		return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);
	}
	if (b === undefined) {
		return null;
	}
	return new L.LatLng(a, b, c);
};



/*
 * @class LatLngBounds
 * @aka L.LatLngBounds
 *
 * Represents a rectangular geographical area on a map.
 *
 * @example
 *
 * ```js
 * var corner1 = L.latLng(40.712, -74.227),
 * corner2 = L.latLng(40.774, -74.125),
 * bounds = L.latLngBounds(corner1, corner2);
 * ```
 *
 * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
 *
 * ```js
 * map.fitBounds([
 * 	[40.712, -74.227],
 * 	[40.774, -74.125]
 * ]);
 * ```
 *
 * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.
 */

L.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[])
	if (!corner1) { return; }

	var latlngs = corner2 ? [corner1, corner2] : corner1;

	for (var i = 0, len = latlngs.length; i < len; i++) {
		this.extend(latlngs[i]);
	}
};

L.LatLngBounds.prototype = {

	// @method extend(latlng: LatLng): this
	// Extend the bounds to contain the given point

	// @alternative
	// @method extend(otherBounds: LatLngBounds): this
	// Extend the bounds to contain the given bounds
	extend: function (obj) {
		var sw = this._southWest,
		    ne = this._northEast,
		    sw2, ne2;

		if (obj instanceof L.LatLng) {
			sw2 = obj;
			ne2 = obj;

		} else if (obj instanceof L.LatLngBounds) {
			sw2 = obj._southWest;
			ne2 = obj._northEast;

			if (!sw2 || !ne2) { return this; }

		} else {
			return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;
		}

		if (!sw && !ne) {
			this._southWest = new L.LatLng(sw2.lat, sw2.lng);
			this._northEast = new L.LatLng(ne2.lat, ne2.lng);
		} else {
			sw.lat = Math.min(sw2.lat, sw.lat);
			sw.lng = Math.min(sw2.lng, sw.lng);
			ne.lat = Math.max(ne2.lat, ne.lat);
			ne.lng = Math.max(ne2.lng, ne.lng);
		}

		return this;
	},

	// @method pad(bufferRatio: Number): LatLngBounds
	// Returns bigger bounds created by extending the current bounds by a given percentage in each direction.
	pad: function (bufferRatio) {
		var sw = this._southWest,
		    ne = this._northEast,
		    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
		    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;

		return new L.LatLngBounds(
		        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
		        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
	},

	// @method getCenter(): LatLng
	// Returns the center point of the bounds.
	getCenter: function () {
		return new L.LatLng(
		        (this._southWest.lat + this._northEast.lat) / 2,
		        (this._southWest.lng + this._northEast.lng) / 2);
	},

	// @method getSouthWest(): LatLng
	// Returns the south-west point of the bounds.
	getSouthWest: function () {
		return this._southWest;
	},

	// @method getNorthEast(): LatLng
	// Returns the north-east point of the bounds.
	getNorthEast: function () {
		return this._northEast;
	},

	// @method getNorthWest(): LatLng
	// Returns the north-west point of the bounds.
	getNorthWest: function () {
		return new L.LatLng(this.getNorth(), this.getWest());
	},

	// @method getSouthEast(): LatLng
	// Returns the south-east point of the bounds.
	getSouthEast: function () {
		return new L.LatLng(this.getSouth(), this.getEast());
	},

	// @method getWest(): Number
	// Returns the west longitude of the bounds
	getWest: function () {
		return this._southWest.lng;
	},

	// @method getSouth(): Number
	// Returns the south latitude of the bounds
	getSouth: function () {
		return this._southWest.lat;
	},

	// @method getEast(): Number
	// Returns the east longitude of the bounds
	getEast: function () {
		return this._northEast.lng;
	},

	// @method getNorth(): Number
	// Returns the north latitude of the bounds
	getNorth: function () {
		return this._northEast.lat;
	},

	// @method contains(otherBounds: LatLngBounds): Boolean
	// Returns `true` if the rectangle contains the given one.

	// @alternative
	// @method contains (latlng: LatLng): Boolean
	// Returns `true` if the rectangle contains the given point.
	contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
		if (typeof obj[0] === 'number' || obj instanceof L.LatLng || 'lat' in obj) {
			obj = L.latLng(obj);
		} else {
			obj = L.latLngBounds(obj);
		}

		var sw = this._southWest,
		    ne = this._northEast,
		    sw2, ne2;

		if (obj instanceof L.LatLngBounds) {
			sw2 = obj.getSouthWest();
			ne2 = obj.getNorthEast();
		} else {
			sw2 = ne2 = obj;
		}

		return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
		       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
	},

	// @method intersects(otherBounds: LatLngBounds): Boolean
	// Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.
	intersects: function (bounds) {
		bounds = L.latLngBounds(bounds);

		var sw = this._southWest,
		    ne = this._northEast,
		    sw2 = bounds.getSouthWest(),
		    ne2 = bounds.getNorthEast(),

		    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
		    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);

		return latIntersects && lngIntersects;
	},

	// @method overlaps(otherBounds: Bounds): Boolean
	// Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.
	overlaps: function (bounds) {
		bounds = L.latLngBounds(bounds);

		var sw = this._southWest,
		    ne = this._northEast,
		    sw2 = bounds.getSouthWest(),
		    ne2 = bounds.getNorthEast(),

		    latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),
		    lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);

		return latOverlaps && lngOverlaps;
	},

	// @method toBBoxString(): String
	// Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.
	toBBoxString: function () {
		return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
	},

	// @method equals(otherBounds: LatLngBounds): Boolean
	// Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds.
	equals: function (bounds) {
		if (!bounds) { return false; }

		bounds = L.latLngBounds(bounds);

		return this._southWest.equals(bounds.getSouthWest()) &&
		       this._northEast.equals(bounds.getNorthEast());
	},

	// @method isValid(): Boolean
	// Returns `true` if the bounds are properly initialized.
	isValid: function () {
		return !!(this._southWest && this._northEast);
	}
};

// TODO International date line?

// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)
// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.

// @alternative
// @factory L.latLngBounds(latlngs: LatLng[])
// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).
L.latLngBounds = function (a, b) {
	if (a instanceof L.LatLngBounds) {
		return a;
	}
	return new L.LatLngBounds(a, b);
};



/*
 * @namespace Projection
 * @section
 * Leaflet comes with a set of already defined Projections out of the box:
 *
 * @projection L.Projection.LonLat
 *
 * Equirectangular, or Plate Carree projection — the most simple projection,
 * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as
 * latitude. Also suitable for flat worlds, e.g. game maps. Used by the
 * `EPSG:3395` and `Simple` CRS.
 */

L.Projection = {};

L.Projection.LonLat = {
	project: function (latlng) {
		return new L.Point(latlng.lng, latlng.lat);
	},

	unproject: function (point) {
		return new L.LatLng(point.y, point.x);
	},

	bounds: L.bounds([-180, -90], [180, 90])
};



/*
 * @namespace Projection
 * @projection L.Projection.SphericalMercator
 *
 * Spherical Mercator projection — the most common projection for online maps,
 * used by almost all free and commercial tile providers. Assumes that Earth is
 * a sphere. Used by the `EPSG:3857` CRS.
 */

L.Projection.SphericalMercator = {

	R: 6378137,
	MAX_LATITUDE: 85.0511287798,

	project: function (latlng) {
		var d = Math.PI / 180,
		    max = this.MAX_LATITUDE,
		    lat = Math.max(Math.min(max, latlng.lat), -max),
		    sin = Math.sin(lat * d);

		return new L.Point(
				this.R * latlng.lng * d,
				this.R * Math.log((1 + sin) / (1 - sin)) / 2);
	},

	unproject: function (point) {
		var d = 180 / Math.PI;

		return new L.LatLng(
			(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,
			point.x * d / this.R);
	},

	bounds: (function () {
		var d = 6378137 * Math.PI;
		return L.bounds([-d, -d], [d, d]);
	})()
};



/*
 * @class CRS
 * @aka L.CRS
 * Abstract class that defines coordinate reference systems for projecting
 * geographical points into pixel (screen) coordinates and back (and to
 * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See
 * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).
 *
 * Leaflet defines the most usual CRSs by default. If you want to use a
 * CRS not defined by default, take a look at the
 * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.
 */

L.CRS = {
	// @method latLngToPoint(latlng: LatLng, zoom: Number): Point
	// Projects geographical coordinates into pixel coordinates for a given zoom.
	latLngToPoint: function (latlng, zoom) {
		var projectedPoint = this.projection.project(latlng),
		    scale = this.scale(zoom);

		return this.transformation._transform(projectedPoint, scale);
	},

	// @method pointToLatLng(point: Point, zoom: Number): LatLng
	// The inverse of `latLngToPoint`. Projects pixel coordinates on a given
	// zoom into geographical coordinates.
	pointToLatLng: function (point, zoom) {
		var scale = this.scale(zoom),
		    untransformedPoint = this.transformation.untransform(point, scale);

		return this.projection.unproject(untransformedPoint);
	},

	// @method project(latlng: LatLng): Point
	// Projects geographical coordinates into coordinates in units accepted for
	// this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).
	project: function (latlng) {
		return this.projection.project(latlng);
	},

	// @method unproject(point: Point): LatLng
	// Given a projected coordinate returns the corresponding LatLng.
	// The inverse of `project`.
	unproject: function (point) {
		return this.projection.unproject(point);
	},

	// @method scale(zoom: Number): Number
	// Returns the scale used when transforming projected coordinates into
	// pixel coordinates for a particular zoom. For example, it returns
	// `256 * 2^zoom` for Mercator-based CRS.
	scale: function (zoom) {
		return 256 * Math.pow(2, zoom);
	},

	// @method zoom(scale: Number): Number
	// Inverse of `scale()`, returns the zoom level corresponding to a scale
	// factor of `scale`.
	zoom: function (scale) {
		return Math.log(scale / 256) / Math.LN2;
	},

	// @method getProjectedBounds(zoom: Number): Bounds
	// Returns the projection's bounds scaled and transformed for the provided `zoom`.
	getProjectedBounds: function (zoom) {
		if (this.infinite) { return null; }

		var b = this.projection.bounds,
		    s = this.scale(zoom),
		    min = this.transformation.transform(b.min, s),
		    max = this.transformation.transform(b.max, s);

		return L.bounds(min, max);
	},

	// @method distance(latlng1: LatLng, latlng2: LatLng): Number
	// Returns the distance between two geographical coordinates.

	// @property code: String
	// Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)
	//
	// @property wrapLng: Number[]
	// An array of two numbers defining whether the longitude (horizontal) coordinate
	// axis wraps around a given range and how. Defaults to `[-180, 180]` in most
	// geographical CRSs. If `undefined`, the longitude axis does not wrap around.
	//
	// @property wrapLat: Number[]
	// Like `wrapLng`, but for the latitude (vertical) axis.

	// wrapLng: [min, max],
	// wrapLat: [min, max],

	// @property infinite: Boolean
	// If true, the coordinate space will be unbounded (infinite in both axes)
	infinite: false,

	// @method wrapLatLng(latlng: LatLng): LatLng
	// Returns a `LatLng` where lat and lng has been wrapped according to the
	// CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.
	// Only accepts actual `L.LatLng` instances, not arrays.
	wrapLatLng: function (latlng) {
		var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,
		    lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,
		    alt = latlng.alt;

		return L.latLng(lat, lng, alt);
	},

	// @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds
	// Returns a `LatLngBounds` with the same size as the given one, ensuring
	// that its center is within the CRS's bounds.
	// Only accepts actual `L.LatLngBounds` instances, not arrays.
	wrapLatLngBounds: function (bounds) {
		var center = bounds.getCenter(),
		    newCenter = this.wrapLatLng(center),
		    latShift = center.lat - newCenter.lat,
		    lngShift = center.lng - newCenter.lng;

		if (latShift === 0 && lngShift === 0) {
			return bounds;
		}

		var sw = bounds.getSouthWest(),
		    ne = bounds.getNorthEast(),
		    newSw = L.latLng({lat: sw.lat - latShift, lng: sw.lng - lngShift}),
		    newNe = L.latLng({lat: ne.lat - latShift, lng: ne.lng - lngShift});

		return new L.LatLngBounds(newSw, newNe);
	}
};



/*
 * @namespace CRS
 * @crs L.CRS.Simple
 *
 * A simple CRS that maps longitude and latitude into `x` and `y` directly.
 * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`
 * axis should still be inverted (going from bottom to top). `distance()` returns
 * simple euclidean distance.
 */

L.CRS.Simple = L.extend({}, L.CRS, {
	projection: L.Projection.LonLat,
	transformation: new L.Transformation(1, 0, -1, 0),

	scale: function (zoom) {
		return Math.pow(2, zoom);
	},

	zoom: function (scale) {
		return Math.log(scale) / Math.LN2;
	},

	distance: function (latlng1, latlng2) {
		var dx = latlng2.lng - latlng1.lng,
		    dy = latlng2.lat - latlng1.lat;

		return Math.sqrt(dx * dx + dy * dy);
	},

	infinite: true
});



/*
 * @namespace CRS
 * @crs L.CRS.Earth
 *
 * Serves as the base for CRS that are global such that they cover the earth.
 * Can only be used as the base for other CRS and cannot be used directly,
 * since it does not have a `code`, `projection` or `transformation`. `distance()` returns
 * meters.
 */

L.CRS.Earth = L.extend({}, L.CRS, {
	wrapLng: [-180, 180],

	// Mean Earth Radius, as recommended for use by
	// the International Union of Geodesy and Geophysics,
	// see http://rosettacode.org/wiki/Haversine_formula
	R: 6371000,

	// distance between two geographical points using spherical law of cosines approximation
	distance: function (latlng1, latlng2) {
		var rad = Math.PI / 180,
		    lat1 = latlng1.lat * rad,
		    lat2 = latlng2.lat * rad,
		    a = Math.sin(lat1) * Math.sin(lat2) +
		        Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);

		return this.R * Math.acos(Math.min(a, 1));
	}
});



/*
 * @namespace CRS
 * @crs L.CRS.EPSG3857
 *
 * The most common CRS for online maps, used by almost all free and commercial
 * tile providers. Uses Spherical Mercator projection. Set in by default in
 * Map's `crs` option.
 */

L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {
	code: 'EPSG:3857',
	projection: L.Projection.SphericalMercator,

	transformation: (function () {
		var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);
		return new L.Transformation(scale, 0.5, -scale, 0.5);
	}())
});

L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
	code: 'EPSG:900913'
});



/*
 * @namespace CRS
 * @crs L.CRS.EPSG4326
 *
 * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.
 *
 * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),
 * which is a breaking change from 0.7.x behaviour.  If you are using a `TileLayer`
 * with this CRS, ensure that there are two 256x256 pixel tiles covering the
 * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),
 * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.
 */

L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {
	code: 'EPSG:4326',
	projection: L.Projection.LonLat,
	transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)
});



/*
 * @class Map
 * @aka L.Map
 * @inherits Evented
 *
 * The central class of the API — it is used to create a map on a page and manipulate it.
 *
 * @example
 *
 * ```js
 * // initialize the map on the "map" div with a given center and zoom
 * var map = L.map('map', {
 * 	center: [51.505, -0.09],
 * 	zoom: 13
 * });
 * ```
 *
 */

L.Map = L.Evented.extend({

	options: {
		// @section Map State Options
		// @option crs: CRS = L.CRS.EPSG3857
		// The [Coordinate Reference System](#crs) to use. Don't change this if you're not
		// sure what it means.
		crs: L.CRS.EPSG3857,

		// @option center: LatLng = undefined
		// Initial geographic center of the map
		center: undefined,

		// @option zoom: Number = undefined
		// Initial map zoom level
		zoom: undefined,

		// @option minZoom: Number = undefined
		// Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.
		minZoom: undefined,

		// @option maxZoom: Number = undefined
		// Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.
		maxZoom: undefined,

		// @option layers: Layer[] = []
		// Array of layers that will be added to the map initially
		layers: [],

		// @option maxBounds: LatLngBounds = null
		// When this option is set, the map restricts the view to the given
		// geographical bounds, bouncing the user back if the user tries to pan
		// outside the view. To set the restriction dynamically, use
		// [`setMaxBounds`](#map-setmaxbounds) method.
		maxBounds: undefined,

		// @option renderer: Renderer = *
		// The default method for drawing vector layers on the map. `L.SVG`
		// or `L.Canvas` by default depending on browser support.
		renderer: undefined,


		// @section Animation Options
		// @option zoomAnimation: Boolean = true
		// Whether the map zoom animation is enabled. By default it's enabled
		// in all browsers that support CSS3 Transitions except Android.
		zoomAnimation: true,

		// @option zoomAnimationThreshold: Number = 4
		// Won't animate zoom if the zoom difference exceeds this value.
		zoomAnimationThreshold: 4,

		// @option fadeAnimation: Boolean = true
		// Whether the tile fade animation is enabled. By default it's enabled
		// in all browsers that support CSS3 Transitions except Android.
		fadeAnimation: true,

		// @option markerZoomAnimation: Boolean = true
		// Whether markers animate their zoom with the zoom animation, if disabled
		// they will disappear for the length of the animation. By default it's
		// enabled in all browsers that support CSS3 Transitions except Android.
		markerZoomAnimation: true,

		// @option transform3DLimit: Number = 2^23
		// Defines the maximum size of a CSS translation transform. The default
		// value should not be changed unless a web browser positions layers in
		// the wrong place after doing a large `panBy`.
		transform3DLimit: 8388608, // Precision limit of a 32-bit float

		// @section Interaction Options
		// @option zoomSnap: Number = 1
		// Forces the map's zoom level to always be a multiple of this, particularly
		// right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.
		// By default, the zoom level snaps to the nearest integer; lower values
		// (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`
		// means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.
		zoomSnap: 1,

		// @option zoomDelta: Number = 1
		// Controls how much the map's zoom level will change after a
		// [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`
		// or `-` on the keyboard, or using the [zoom controls](#control-zoom).
		// Values smaller than `1` (e.g. `0.5`) allow for greater granularity.
		zoomDelta: 1,

		// @option trackResize: Boolean = true
		// Whether the map automatically handles browser window resize to update itself.
		trackResize: true
	},

	initialize: function (id, options) { // (HTMLElement or String, Object)
		options = L.setOptions(this, options);

		this._initContainer(id);
		this._initLayout();

		// hack for https://github.com/Leaflet/Leaflet/issues/1980
		this._onResize = L.bind(this._onResize, this);

		this._initEvents();

		if (options.maxBounds) {
			this.setMaxBounds(options.maxBounds);
		}

		if (options.zoom !== undefined) {
			this._zoom = this._limitZoom(options.zoom);
		}

		if (options.center && options.zoom !== undefined) {
			this.setView(L.latLng(options.center), options.zoom, {reset: true});
		}

		this._handlers = [];
		this._layers = {};
		this._zoomBoundLayers = {};
		this._sizeChanged = true;

		this.callInitHooks();

		// don't animate on browsers without hardware-accelerated transitions or old Android/Opera
		this._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera &&
				this.options.zoomAnimation;

		// zoom transitions run with the same duration for all layers, so if one of transitionend events
		// happens after starting zoom animation (propagating to the map pane), we know that it ended globally
		if (this._zoomAnimated) {
			this._createAnimProxy();
			L.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
		}

		this._addLayers(this.options.layers);
	},


	// @section Methods for modifying map state

	// @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this
	// Sets the view of the map (geographical center and zoom) with the given
	// animation options.
	setView: function (center, zoom, options) {

		zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
		center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
		options = options || {};

		this._stop();

		if (this._loaded && !options.reset && options !== true) {

			if (options.animate !== undefined) {
				options.zoom = L.extend({animate: options.animate}, options.zoom);
				options.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);
			}

			// try animating pan or zoom
			var moved = (this._zoom !== zoom) ?
				this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
				this._tryAnimatedPan(center, options.pan);

			if (moved) {
				// prevent resize handler call, the view will refresh after animation anyway
				clearTimeout(this._sizeTimer);
				return this;
			}
		}

		// animation didn't start, just reset the map view
		this._resetView(center, zoom);

		return this;
	},

	// @method setZoom(zoom: Number, options: Zoom/pan options): this
	// Sets the zoom of the map.
	setZoom: function (zoom, options) {
		if (!this._loaded) {
			this._zoom = zoom;
			return this;
		}
		return this.setView(this.getCenter(), zoom, {zoom: options});
	},

	// @method zoomIn(delta?: Number, options?: Zoom options): this
	// Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
	zoomIn: function (delta, options) {
		delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);
		return this.setZoom(this._zoom + delta, options);
	},

	// @method zoomOut(delta?: Number, options?: Zoom options): this
	// Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
	zoomOut: function (delta, options) {
		delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);
		return this.setZoom(this._zoom - delta, options);
	},

	// @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this
	// Zooms the map while keeping a specified geographical point on the map
	// stationary (e.g. used internally for scroll zoom and double-click zoom).
	// @alternative
	// @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this
	// Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.
	setZoomAround: function (latlng, zoom, options) {
		var scale = this.getZoomScale(zoom),
		    viewHalf = this.getSize().divideBy(2),
		    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),

		    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
		    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));

		return this.setView(newCenter, zoom, {zoom: options});
	},

	_getBoundsCenterZoom: function (bounds, options) {

		options = options || {};
		bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);

		var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
		    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),

		    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));

		zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;

		var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),

		    swPoint = this.project(bounds.getSouthWest(), zoom),
		    nePoint = this.project(bounds.getNorthEast(), zoom),
		    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);

		return {
			center: center,
			zoom: zoom
		};
	},

	// @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this
	// Sets a map view that contains the given geographical bounds with the
	// maximum zoom level possible.
	fitBounds: function (bounds, options) {

		bounds = L.latLngBounds(bounds);

		if (!bounds.isValid()) {
			throw new Error('Bounds are not valid.');
		}

		var target = this._getBoundsCenterZoom(bounds, options);
		return this.setView(target.center, target.zoom, options);
	},

	// @method fitWorld(options?: fitBounds options): this
	// Sets a map view that mostly contains the whole world with the maximum
	// zoom level possible.
	fitWorld: function (options) {
		return this.fitBounds([[-90, -180], [90, 180]], options);
	},

	// @method panTo(latlng: LatLng, options?: Pan options): this
	// Pans the map to a given center.
	panTo: function (center, options) { // (LatLng)
		return this.setView(center, this._zoom, {pan: options});
	},

	// @method panBy(offset: Point): this
	// Pans the map by a given number of pixels (animated).
	panBy: function (offset, options) {
		offset = L.point(offset).round();
		options = options || {};

		if (!offset.x && !offset.y) {
			return this.fire('moveend');
		}
		// If we pan too far, Chrome gets issues with tiles
		// and makes them disappear or appear in the wrong place (slightly offset) #2602
		if (options.animate !== true && !this.getSize().contains(offset)) {
			this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());
			return this;
		}

		if (!this._panAnim) {
			this._panAnim = new L.PosAnimation();

			this._panAnim.on({
				'step': this._onPanTransitionStep,
				'end': this._onPanTransitionEnd
			}, this);
		}

		// don't fire movestart if animating inertia
		if (!options.noMoveStart) {
			this.fire('movestart');
		}

		// animate pan unless animate: false specified
		if (options.animate !== false) {
			L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');

			var newPos = this._getMapPanePos().subtract(offset).round();
			this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
		} else {
			this._rawPanBy(offset);
			this.fire('move').fire('moveend');
		}

		return this;
	},

	// @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this
	// Sets the view of the map (geographical center and zoom) performing a smooth
	// pan-zoom animation.
	flyTo: function (targetCenter, targetZoom, options) {

		options = options || {};
		if (options.animate === false || !L.Browser.any3d) {
			return this.setView(targetCenter, targetZoom, options);
		}

		this._stop();

		var from = this.project(this.getCenter()),
		    to = this.project(targetCenter),
		    size = this.getSize(),
		    startZoom = this._zoom;

		targetCenter = L.latLng(targetCenter);
		targetZoom = targetZoom === undefined ? startZoom : targetZoom;

		var w0 = Math.max(size.x, size.y),
		    w1 = w0 * this.getZoomScale(startZoom, targetZoom),
		    u1 = (to.distanceTo(from)) || 1,
		    rho = 1.42,
		    rho2 = rho * rho;

		function r(i) {
			var s1 = i ? -1 : 1,
			    s2 = i ? w1 : w0,
			    t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,
			    b1 = 2 * s2 * rho2 * u1,
			    b = t1 / b1,
			    sq = Math.sqrt(b * b + 1) - b;

			    // workaround for floating point precision bug when sq = 0, log = -Infinite,
			    // thus triggering an infinite loop in flyTo
			    var log = sq < 0.000000001 ? -18 : Math.log(sq);

			return log;
		}

		function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }
		function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }
		function tanh(n) { return sinh(n) / cosh(n); }

		var r0 = r(0);

		function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }
		function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }

		function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }

		var start = Date.now(),
		    S = (r(1) - r0) / rho,
		    duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;

		function frame() {
			var t = (Date.now() - start) / duration,
			    s = easeOut(t) * S;

			if (t <= 1) {
				this._flyToFrame = L.Util.requestAnimFrame(frame, this);

				this._move(
					this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
					this.getScaleZoom(w0 / w(s), startZoom),
					{flyTo: true});

			} else {
				this
					._move(targetCenter, targetZoom)
					._moveEnd(true);
			}
		}

		this._moveStart(true);

		frame.call(this);
		return this;
	},

	// @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this
	// Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),
	// but takes a bounds parameter like [`fitBounds`](#map-fitbounds).
	flyToBounds: function (bounds, options) {
		var target = this._getBoundsCenterZoom(bounds, options);
		return this.flyTo(target.center, target.zoom, options);
	},

	// @method setMaxBounds(bounds: Bounds): this
	// Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).
	setMaxBounds: function (bounds) {
		bounds = L.latLngBounds(bounds);

		if (!bounds.isValid()) {
			this.options.maxBounds = null;
			return this.off('moveend', this._panInsideMaxBounds);
		} else if (this.options.maxBounds) {
			this.off('moveend', this._panInsideMaxBounds);
		}

		this.options.maxBounds = bounds;

		if (this._loaded) {
			this._panInsideMaxBounds();
		}

		return this.on('moveend', this._panInsideMaxBounds);
	},

	// @method setMinZoom(zoom: Number): this
	// Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).
	setMinZoom: function (zoom) {
		this.options.minZoom = zoom;

		if (this._loaded && this.getZoom() < this.options.minZoom) {
			return this.setZoom(zoom);
		}

		return this;
	},

	// @method setMaxZoom(zoom: Number): this
	// Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).
	setMaxZoom: function (zoom) {
		this.options.maxZoom = zoom;

		if (this._loaded && (this.getZoom() > this.options.maxZoom)) {
			return this.setZoom(zoom);
		}

		return this;
	},

	// @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this
	// Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.
	panInsideBounds: function (bounds, options) {
		this._enforcingBounds = true;
		var center = this.getCenter(),
		    newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));

		if (!center.equals(newCenter)) {
			this.panTo(newCenter, options);
		}

		this._enforcingBounds = false;
		return this;
	},

	// @method invalidateSize(options: Zoom/Pan options): this
	// Checks if the map container size changed and updates the map if so —
	// call it after you've changed the map size dynamically, also animating
	// pan by default. If `options.pan` is `false`, panning will not occur.
	// If `options.debounceMoveend` is `true`, it will delay `moveend` event so
	// that it doesn't happen often even if the method is called many
	// times in a row.

	// @alternative
	// @method invalidateSize(animate: Boolean): this
	// Checks if the map container size changed and updates the map if so —
	// call it after you've changed the map size dynamically, also animating
	// pan by default.
	invalidateSize: function (options) {
		if (!this._loaded) { return this; }

		options = L.extend({
			animate: false,
			pan: true
		}, options === true ? {animate: true} : options);

		var oldSize = this.getSize();
		this._sizeChanged = true;
		this._lastCenter = null;

		var newSize = this.getSize(),
		    oldCenter = oldSize.divideBy(2).round(),
		    newCenter = newSize.divideBy(2).round(),
		    offset = oldCenter.subtract(newCenter);

		if (!offset.x && !offset.y) { return this; }

		if (options.animate && options.pan) {
			this.panBy(offset);

		} else {
			if (options.pan) {
				this._rawPanBy(offset);
			}

			this.fire('move');

			if (options.debounceMoveend) {
				clearTimeout(this._sizeTimer);
				this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
			} else {
				this.fire('moveend');
			}
		}

		// @section Map state change events
		// @event resize: ResizeEvent
		// Fired when the map is resized.
		return this.fire('resize', {
			oldSize: oldSize,
			newSize: newSize
		});
	},

	// @section Methods for modifying map state
	// @method stop(): this
	// Stops the currently running `panTo` or `flyTo` animation, if any.
	stop: function () {
		this.setZoom(this._limitZoom(this._zoom));
		if (!this.options.zoomSnap) {
			this.fire('viewreset');
		}
		return this._stop();
	},

	// @section Geolocation methods
	// @method locate(options?: Locate options): this
	// Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)
	// event with location data on success or a [`locationerror`](#map-locationerror) event on failure,
	// and optionally sets the map view to the user's location with respect to
	// detection accuracy (or to the world view if geolocation failed).
	// Note that, if your page doesn't use HTTPS, this method will fail in
	// modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))
	// See `Locate options` for more details.
	locate: function (options) {

		options = this._locateOptions = L.extend({
			timeout: 10000,
			watch: false
			// setView: false
			// maxZoom: <Number>
			// maximumAge: 0
			// enableHighAccuracy: false
		}, options);

		if (!('geolocation' in navigator)) {
			this._handleGeolocationError({
				code: 0,
				message: 'Geolocation not supported.'
			});
			return this;
		}

		var onResponse = L.bind(this._handleGeolocationResponse, this),
		    onError = L.bind(this._handleGeolocationError, this);

		if (options.watch) {
			this._locationWatchId =
			        navigator.geolocation.watchPosition(onResponse, onError, options);
		} else {
			navigator.geolocation.getCurrentPosition(onResponse, onError, options);
		}
		return this;
	},

	// @method stopLocate(): this
	// Stops watching location previously initiated by `map.locate({watch: true})`
	// and aborts resetting the map view if map.locate was called with
	// `{setView: true}`.
	stopLocate: function () {
		if (navigator.geolocation && navigator.geolocation.clearWatch) {
			navigator.geolocation.clearWatch(this._locationWatchId);
		}
		if (this._locateOptions) {
			this._locateOptions.setView = false;
		}
		return this;
	},

	_handleGeolocationError: function (error) {
		var c = error.code,
		    message = error.message ||
		            (c === 1 ? 'permission denied' :
		            (c === 2 ? 'position unavailable' : 'timeout'));

		if (this._locateOptions.setView && !this._loaded) {
			this.fitWorld();
		}

		// @section Location events
		// @event locationerror: ErrorEvent
		// Fired when geolocation (using the [`locate`](#map-locate) method) failed.
		this.fire('locationerror', {
			code: c,
			message: 'Geolocation error: ' + message + '.'
		});
	},

	_handleGeolocationResponse: function (pos) {
		var lat = pos.coords.latitude,
		    lng = pos.coords.longitude,
		    latlng = new L.LatLng(lat, lng),
		    bounds = latlng.toBounds(pos.coords.accuracy),
		    options = this._locateOptions;

		if (options.setView) {
			var zoom = this.getBoundsZoom(bounds);
			this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
		}

		var data = {
			latlng: latlng,
			bounds: bounds,
			timestamp: pos.timestamp
		};

		for (var i in pos.coords) {
			if (typeof pos.coords[i] === 'number') {
				data[i] = pos.coords[i];
			}
		}

		// @event locationfound: LocationEvent
		// Fired when geolocation (using the [`locate`](#map-locate) method)
		// went successfully.
		this.fire('locationfound', data);
	},

	// TODO handler.addTo
	// TODO Appropiate docs section?
	// @section Other Methods
	// @method addHandler(name: String, HandlerClass: Function): this
	// Adds a new `Handler` to the map, given its name and constructor function.
	addHandler: function (name, HandlerClass) {
		if (!HandlerClass) { return this; }

		var handler = this[name] = new HandlerClass(this);

		this._handlers.push(handler);

		if (this.options[name]) {
			handler.enable();
		}

		return this;
	},

	// @method remove(): this
	// Destroys the map and clears all related event listeners.
	remove: function () {

		this._initEvents(true);

		if (this._containerId !== this._container._leaflet_id) {
			throw new Error('Map container is being reused by another instance');
		}

		try {
			// throws error in IE6-8
			delete this._container._leaflet_id;
			delete this._containerId;
		} catch (e) {
			/*eslint-disable */
			this._container._leaflet_id = undefined;
			/*eslint-enable */
			this._containerId = undefined;
		}

		L.DomUtil.remove(this._mapPane);

		if (this._clearControlPos) {
			this._clearControlPos();
		}

		this._clearHandlers();

		if (this._loaded) {
			// @section Map state change events
			// @event unload: Event
			// Fired when the map is destroyed with [remove](#map-remove) method.
			this.fire('unload');
		}

		for (var i in this._layers) {
			this._layers[i].remove();
		}

		return this;
	},

	// @section Other Methods
	// @method createPane(name: String, container?: HTMLElement): HTMLElement
	// Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,
	// then returns it. The pane is created as a children of `container`, or
	// as a children of the main map pane if not set.
	createPane: function (name, container) {
		var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),
		    pane = L.DomUtil.create('div', className, container || this._mapPane);

		if (name) {
			this._panes[name] = pane;
		}
		return pane;
	},

	// @section Methods for Getting Map State

	// @method getCenter(): LatLng
	// Returns the geographical center of the map view
	getCenter: function () {
		this._checkIfLoaded();

		if (this._lastCenter && !this._moved()) {
			return this._lastCenter;
		}
		return this.layerPointToLatLng(this._getCenterLayerPoint());
	},

	// @method getZoom(): Number
	// Returns the current zoom level of the map view
	getZoom: function () {
		return this._zoom;
	},

	// @method getBounds(): LatLngBounds
	// Returns the geographical bounds visible in the current map view
	getBounds: function () {
		var bounds = this.getPixelBounds(),
		    sw = this.unproject(bounds.getBottomLeft()),
		    ne = this.unproject(bounds.getTopRight());

		return new L.LatLngBounds(sw, ne);
	},

	// @method getMinZoom(): Number
	// Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.
	getMinZoom: function () {
		return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;
	},

	// @method getMaxZoom(): Number
	// Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).
	getMaxZoom: function () {
		return this.options.maxZoom === undefined ?
			(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
			this.options.maxZoom;
	},

	// @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number
	// Returns the maximum zoom level on which the given bounds fit to the map
	// view in its entirety. If `inside` (optional) is set to `true`, the method
	// instead returns the minimum zoom level on which the map view fits into
	// the given bounds in its entirety.
	getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
		bounds = L.latLngBounds(bounds);
		padding = L.point(padding || [0, 0]);

		var zoom = this.getZoom() || 0,
		    min = this.getMinZoom(),
		    max = this.getMaxZoom(),
		    nw = bounds.getNorthWest(),
		    se = bounds.getSouthEast(),
		    size = this.getSize().subtract(padding),
		    boundsSize = L.bounds(this.project(se, zoom), this.project(nw, zoom)).getSize(),
		    snap = L.Browser.any3d ? this.options.zoomSnap : 1;

		var scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);
		zoom = this.getScaleZoom(scale, zoom);

		if (snap) {
			zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level
			zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;
		}

		return Math.max(min, Math.min(max, zoom));
	},

	// @method getSize(): Point
	// Returns the current size of the map container (in pixels).
	getSize: function () {
		if (!this._size || this._sizeChanged) {
			this._size = new L.Point(
				this._container.clientWidth || 0,
				this._container.clientHeight || 0);

			this._sizeChanged = false;
		}
		return this._size.clone();
	},

	// @method getPixelBounds(): Bounds
	// Returns the bounds of the current map view in projected pixel
	// coordinates (sometimes useful in layer and overlay implementations).
	getPixelBounds: function (center, zoom) {
		var topLeftPoint = this._getTopLeftPoint(center, zoom);
		return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
	},

	// TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to
	// the map pane? "left point of the map layer" can be confusing, specially
	// since there can be negative offsets.
	// @method getPixelOrigin(): Point
	// Returns the projected pixel coordinates of the top left point of
	// the map layer (useful in custom layer and overlay implementations).
	getPixelOrigin: function () {
		this._checkIfLoaded();
		return this._pixelOrigin;
	},

	// @method getPixelWorldBounds(zoom?: Number): Bounds
	// Returns the world's bounds in pixel coordinates for zoom level `zoom`.
	// If `zoom` is omitted, the map's current zoom level is used.
	getPixelWorldBounds: function (zoom) {
		return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);
	},

	// @section Other Methods

	// @method getPane(pane: String|HTMLElement): HTMLElement
	// Returns a [map pane](#map-pane), given its name or its HTML element (its identity).
	getPane: function (pane) {
		return typeof pane === 'string' ? this._panes[pane] : pane;
	},

	// @method getPanes(): Object
	// Returns a plain object containing the names of all [panes](#map-pane) as keys and
	// the panes as values.
	getPanes: function () {
		return this._panes;
	},

	// @method getContainer: HTMLElement
	// Returns the HTML element that contains the map.
	getContainer: function () {
		return this._container;
	},


	// @section Conversion Methods

	// @method getZoomScale(toZoom: Number, fromZoom: Number): Number
	// Returns the scale factor to be applied to a map transition from zoom level
	// `fromZoom` to `toZoom`. Used internally to help with zoom animations.
	getZoomScale: function (toZoom, fromZoom) {
		// TODO replace with universal implementation after refactoring projections
		var crs = this.options.crs;
		fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
		return crs.scale(toZoom) / crs.scale(fromZoom);
	},

	// @method getScaleZoom(scale: Number, fromZoom: Number): Number
	// Returns the zoom level that the map would end up at, if it is at `fromZoom`
	// level and everything is scaled by a factor of `scale`. Inverse of
	// [`getZoomScale`](#map-getZoomScale).
	getScaleZoom: function (scale, fromZoom) {
		var crs = this.options.crs;
		fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
		var zoom = crs.zoom(scale * crs.scale(fromZoom));
		return isNaN(zoom) ? Infinity : zoom;
	},

	// @method project(latlng: LatLng, zoom: Number): Point
	// Projects a geographical coordinate `LatLng` according to the projection
	// of the map's CRS, then scales it according to `zoom` and the CRS's
	// `Transformation`. The result is pixel coordinate relative to
	// the CRS origin.
	project: function (latlng, zoom) {
		zoom = zoom === undefined ? this._zoom : zoom;
		return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
	},

	// @method unproject(point: Point, zoom: Number): LatLng
	// Inverse of [`project`](#map-project).
	unproject: function (point, zoom) {
		zoom = zoom === undefined ? this._zoom : zoom;
		return this.options.crs.pointToLatLng(L.point(point), zoom);
	},

	// @method layerPointToLatLng(point: Point): LatLng
	// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
	// returns the corresponding geographical coordinate (for the current zoom level).
	layerPointToLatLng: function (point) {
		var projectedPoint = L.point(point).add(this.getPixelOrigin());
		return this.unproject(projectedPoint);
	},

	// @method latLngToLayerPoint(latlng: LatLng): Point
	// Given a geographical coordinate, returns the corresponding pixel coordinate
	// relative to the [origin pixel](#map-getpixelorigin).
	latLngToLayerPoint: function (latlng) {
		var projectedPoint = this.project(L.latLng(latlng))._round();
		return projectedPoint._subtract(this.getPixelOrigin());
	},

	// @method wrapLatLng(latlng: LatLng): LatLng
	// Returns a `LatLng` where `lat` and `lng` has been wrapped according to the
	// map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the
	// CRS's bounds.
	// By default this means longitude is wrapped around the dateline so its
	// value is between -180 and +180 degrees.
	wrapLatLng: function (latlng) {
		return this.options.crs.wrapLatLng(L.latLng(latlng));
	},

	// @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds
	// Returns a `LatLngBounds` with the same size as the given one, ensuring that
	// its center is within the CRS's bounds.
	// By default this means the center longitude is wrapped around the dateline so its
	// value is between -180 and +180 degrees, and the majority of the bounds
	// overlaps the CRS's bounds.
	wrapLatLngBounds: function (latlng) {
		return this.options.crs.wrapLatLngBounds(L.latLngBounds(latlng));
	},

	// @method distance(latlng1: LatLng, latlng2: LatLng): Number
	// Returns the distance between two geographical coordinates according to
	// the map's CRS. By default this measures distance in meters.
	distance: function (latlng1, latlng2) {
		return this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));
	},

	// @method containerPointToLayerPoint(point: Point): Point
	// Given a pixel coordinate relative to the map container, returns the corresponding
	// pixel coordinate relative to the [origin pixel](#map-getpixelorigin).
	containerPointToLayerPoint: function (point) { // (Point)
		return L.point(point).subtract(this._getMapPanePos());
	},

	// @method layerPointToContainerPoint(point: Point): Point
	// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
	// returns the corresponding pixel coordinate relative to the map container.
	layerPointToContainerPoint: function (point) { // (Point)
		return L.point(point).add(this._getMapPanePos());
	},

	// @method containerPointToLatLng(point: Point): LatLng
	// Given a pixel coordinate relative to the map container, returns
	// the corresponding geographical coordinate (for the current zoom level).
	containerPointToLatLng: function (point) {
		var layerPoint = this.containerPointToLayerPoint(L.point(point));
		return this.layerPointToLatLng(layerPoint);
	},

	// @method latLngToContainerPoint(latlng: LatLng): Point
	// Given a geographical coordinate, returns the corresponding pixel coordinate
	// relative to the map container.
	latLngToContainerPoint: function (latlng) {
		return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
	},

	// @method mouseEventToContainerPoint(ev: MouseEvent): Point
	// Given a MouseEvent object, returns the pixel coordinate relative to the
	// map container where the event took place.
	mouseEventToContainerPoint: function (e) {
		return L.DomEvent.getMousePosition(e, this._container);
	},

	// @method mouseEventToLayerPoint(ev: MouseEvent): Point
	// Given a MouseEvent object, returns the pixel coordinate relative to
	// the [origin pixel](#map-getpixelorigin) where the event took place.
	mouseEventToLayerPoint: function (e) {
		return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
	},

	// @method mouseEventToLatLng(ev: MouseEvent): LatLng
	// Given a MouseEvent object, returns geographical coordinate where the
	// event took place.
	mouseEventToLatLng: function (e) { // (MouseEvent)
		return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
	},


	// map initialization methods

	_initContainer: function (id) {
		var container = this._container = L.DomUtil.get(id);

		if (!container) {
			throw new Error('Map container not found.');
		} else if (container._leaflet_id) {
			throw new Error('Map container is already initialized.');
		}

		L.DomEvent.addListener(container, 'scroll', this._onScroll, this);
		this._containerId = L.Util.stamp(container);
	},

	_initLayout: function () {
		var container = this._container;

		this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;

		L.DomUtil.addClass(container, 'leaflet-container' +
			(L.Browser.touch ? ' leaflet-touch' : '') +
			(L.Browser.retina ? ' leaflet-retina' : '') +
			(L.Browser.ielt9 ? ' leaflet-oldie' : '') +
			(L.Browser.safari ? ' leaflet-safari' : '') +
			(this._fadeAnimated ? ' leaflet-fade-anim' : ''));

		var position = L.DomUtil.getStyle(container, 'position');

		if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
			container.style.position = 'relative';
		}

		this._initPanes();

		if (this._initControlPos) {
			this._initControlPos();
		}
	},

	_initPanes: function () {
		var panes = this._panes = {};
		this._paneRenderers = {};

		// @section
		//
		// Panes are DOM elements used to control the ordering of layers on the map. You
		// can access panes with [`map.getPane`](#map-getpane) or
		// [`map.getPanes`](#map-getpanes) methods. New panes can be created with the
		// [`map.createPane`](#map-createpane) method.
		//
		// Every map has the following default panes that differ only in zIndex.
		//
		// @pane mapPane: HTMLElement = 'auto'
		// Pane that contains all other map panes

		this._mapPane = this.createPane('mapPane', this._container);
		L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));

		// @pane tilePane: HTMLElement = 200
		// Pane for `GridLayer`s and `TileLayer`s
		this.createPane('tilePane');
		// @pane overlayPane: HTMLElement = 400
		// Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s
		this.createPane('shadowPane');
		// @pane shadowPane: HTMLElement = 500
		// Pane for overlay shadows (e.g. `Marker` shadows)
		this.createPane('overlayPane');
		// @pane markerPane: HTMLElement = 600
		// Pane for `Icon`s of `Marker`s
		this.createPane('markerPane');
		// @pane tooltipPane: HTMLElement = 650
		// Pane for tooltip.
		this.createPane('tooltipPane');
		// @pane popupPane: HTMLElement = 700
		// Pane for `Popup`s.
		this.createPane('popupPane');

		if (!this.options.markerZoomAnimation) {
			L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');
			L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');
		}
	},


	// private methods that modify map state

	// @section Map state change events
	_resetView: function (center, zoom) {
		L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));

		var loading = !this._loaded;
		this._loaded = true;
		zoom = this._limitZoom(zoom);

		this.fire('viewprereset');

		var zoomChanged = this._zoom !== zoom;
		this
			._moveStart(zoomChanged)
			._move(center, zoom)
			._moveEnd(zoomChanged);

		// @event viewreset: Event
		// Fired when the map needs to redraw its content (this usually happens
		// on map zoom or load). Very useful for creating custom overlays.
		this.fire('viewreset');

		// @event load: Event
		// Fired when the map is initialized (when its center and zoom are set
		// for the first time).
		if (loading) {
			this.fire('load');
		}
	},

	_moveStart: function (zoomChanged) {
		// @event zoomstart: Event
		// Fired when the map zoom is about to change (e.g. before zoom animation).
		// @event movestart: Event
		// Fired when the view of the map starts changing (e.g. user starts dragging the map).
		if (zoomChanged) {
			this.fire('zoomstart');
		}
		return this.fire('movestart');
	},

	_move: function (center, zoom, data) {
		if (zoom === undefined) {
			zoom = this._zoom;
		}
		var zoomChanged = this._zoom !== zoom;

		this._zoom = zoom;
		this._lastCenter = center;
		this._pixelOrigin = this._getNewPixelOrigin(center);

		// @event zoom: Event
		// Fired repeatedly during any change in zoom level, including zoom
		// and fly animations.
		if (zoomChanged || (data && data.pinch)) {	// Always fire 'zoom' if pinching because #3530
			this.fire('zoom', data);
		}

		// @event move: Event
		// Fired repeatedly during any movement of the map, including pan and
		// fly animations.
		return this.fire('move', data);
	},

	_moveEnd: function (zoomChanged) {
		// @event zoomend: Event
		// Fired when the map has changed, after any animations.
		if (zoomChanged) {
			this.fire('zoomend');
		}

		// @event moveend: Event
		// Fired when the center of the map stops changing (e.g. user stopped
		// dragging the map).
		return this.fire('moveend');
	},

	_stop: function () {
		L.Util.cancelAnimFrame(this._flyToFrame);
		if (this._panAnim) {
			this._panAnim.stop();
		}
		return this;
	},

	_rawPanBy: function (offset) {
		L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
	},

	_getZoomSpan: function () {
		return this.getMaxZoom() - this.getMinZoom();
	},

	_panInsideMaxBounds: function () {
		if (!this._enforcingBounds) {
			this.panInsideBounds(this.options.maxBounds);
		}
	},

	_checkIfLoaded: function () {
		if (!this._loaded) {
			throw new Error('Set map center and zoom first.');
		}
	},

	// DOM event handling

	// @section Interaction events
	_initEvents: function (remove) {
		if (!L.DomEvent) { return; }

		this._targets = {};
		this._targets[L.stamp(this._container)] = this;

		var onOff = remove ? 'off' : 'on';

		// @event click: MouseEvent
		// Fired when the user clicks (or taps) the map.
		// @event dblclick: MouseEvent
		// Fired when the user double-clicks (or double-taps) the map.
		// @event mousedown: MouseEvent
		// Fired when the user pushes the mouse button on the map.
		// @event mouseup: MouseEvent
		// Fired when the user releases the mouse button on the map.
		// @event mouseover: MouseEvent
		// Fired when the mouse enters the map.
		// @event mouseout: MouseEvent
		// Fired when the mouse leaves the map.
		// @event mousemove: MouseEvent
		// Fired while the mouse moves over the map.
		// @event contextmenu: MouseEvent
		// Fired when the user pushes the right mouse button on the map, prevents
		// default browser context menu from showing if there are listeners on
		// this event. Also fired on mobile when the user holds a single touch
		// for a second (also called long press).
		// @event keypress: KeyboardEvent
		// Fired when the user presses a key from the keyboard while the map is focused.
		L.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' +
			'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);

		if (this.options.trackResize) {
			L.DomEvent[onOff](window, 'resize', this._onResize, this);
		}

		if (L.Browser.any3d && this.options.transform3DLimit) {
			this[onOff]('moveend', this._onMoveEnd);
		}
	},

	_onResize: function () {
		L.Util.cancelAnimFrame(this._resizeRequest);
		this._resizeRequest = L.Util.requestAnimFrame(
		        function () { this.invalidateSize({debounceMoveend: true}); }, this);
	},

	_onScroll: function () {
		this._container.scrollTop  = 0;
		this._container.scrollLeft = 0;
	},

	_onMoveEnd: function () {
		var pos = this._getMapPanePos();
		if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {
			// https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have
			// a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/
			this._resetView(this.getCenter(), this.getZoom());
		}
	},

	_findEventTargets: function (e, type) {
		var targets = [],
		    target,
		    isHover = type === 'mouseout' || type === 'mouseover',
		    src = e.target || e.srcElement,
		    dragging = false;

		while (src) {
			target = this._targets[L.stamp(src)];
			if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {
				// Prevent firing click after you just dragged an object.
				dragging = true;
				break;
			}
			if (target && target.listens(type, true)) {
				if (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; }
				targets.push(target);
				if (isHover) { break; }
			}
			if (src === this._container) { break; }
			src = src.parentNode;
		}
		if (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {
			targets = [this];
		}
		return targets;
	},

	_handleDOMEvent: function (e) {
		if (!this._loaded || L.DomEvent._skipped(e)) { return; }

		var type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;

		if (type === 'mousedown') {
			// prevents outline when clicking on keyboard-focusable element
			L.DomUtil.preventOutline(e.target || e.srcElement);
		}

		this._fireDOMEvent(e, type);
	},

	_fireDOMEvent: function (e, type, targets) {

		if (e.type === 'click') {
			// Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).
			// @event preclick: MouseEvent
			// Fired before mouse click on the map (sometimes useful when you
			// want something to happen on click before any existing click
			// handlers start running).
			var synth = L.Util.extend({}, e);
			synth.type = 'preclick';
			this._fireDOMEvent(synth, synth.type, targets);
		}

		if (e._stopped) { return; }

		// Find the layer the event is propagating from and its parents.
		targets = (targets || []).concat(this._findEventTargets(e, type));

		if (!targets.length) { return; }

		var target = targets[0];
		if (type === 'contextmenu' && target.listens(type, true)) {
			L.DomEvent.preventDefault(e);
		}

		var data = {
			originalEvent: e
		};

		if (e.type !== 'keypress') {
			var isMarker = target instanceof L.Marker;
			data.containerPoint = isMarker ?
					this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);
			data.layerPoint = this.containerPointToLayerPoint(data.containerPoint);
			data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);
		}

		for (var i = 0; i < targets.length; i++) {
			targets[i].fire(type, data, true);
			if (data.originalEvent._stopped ||
				(targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; }
		}
	},

	_draggableMoved: function (obj) {
		obj = obj.dragging && obj.dragging.enabled() ? obj : this;
		return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
	},

	_clearHandlers: function () {
		for (var i = 0, len = this._handlers.length; i < len; i++) {
			this._handlers[i].disable();
		}
	},

	// @section Other Methods

	// @method whenReady(fn: Function, context?: Object): this
	// Runs the given function `fn` when the map gets initialized with
	// a view (center and zoom) and at least one layer, or immediately
	// if it's already initialized, optionally passing a function context.
	whenReady: function (callback, context) {
		if (this._loaded) {
			callback.call(context || this, {target: this});
		} else {
			this.on('load', callback, context);
		}
		return this;
	},


	// private methods for getting map state

	_getMapPanePos: function () {
		return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);
	},

	_moved: function () {
		var pos = this._getMapPanePos();
		return pos && !pos.equals([0, 0]);
	},

	_getTopLeftPoint: function (center, zoom) {
		var pixelOrigin = center && zoom !== undefined ?
			this._getNewPixelOrigin(center, zoom) :
			this.getPixelOrigin();
		return pixelOrigin.subtract(this._getMapPanePos());
	},

	_getNewPixelOrigin: function (center, zoom) {
		var viewHalf = this.getSize()._divideBy(2);
		return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
	},

	_latLngToNewLayerPoint: function (latlng, zoom, center) {
		var topLeft = this._getNewPixelOrigin(center, zoom);
		return this.project(latlng, zoom)._subtract(topLeft);
	},

	_latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {
		var topLeft = this._getNewPixelOrigin(center, zoom);
		return L.bounds([
			this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),
			this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),
			this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),
			this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)
		]);
	},

	// layer point of the current center
	_getCenterLayerPoint: function () {
		return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
	},

	// offset of the specified place to the current center in pixels
	_getCenterOffset: function (latlng) {
		return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
	},

	// adjust center for view to get inside bounds
	_limitCenter: function (center, zoom, bounds) {

		if (!bounds) { return center; }

		var centerPoint = this.project(center, zoom),
		    viewHalf = this.getSize().divideBy(2),
		    viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
		    offset = this._getBoundsOffset(viewBounds, bounds, zoom);

		// If offset is less than a pixel, ignore.
		// This prevents unstable projections from getting into
		// an infinite loop of tiny offsets.
		if (offset.round().equals([0, 0])) {
			return center;
		}

		return this.unproject(centerPoint.add(offset), zoom);
	},

	// adjust offset for view to get inside bounds
	_limitOffset: function (offset, bounds) {
		if (!bounds) { return offset; }

		var viewBounds = this.getPixelBounds(),
		    newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));

		return offset.add(this._getBoundsOffset(newBounds, bounds));
	},

	// returns offset needed for pxBounds to get inside maxBounds at a specified zoom
	_getBoundsOffset: function (pxBounds, maxBounds, zoom) {
		var projectedMaxBounds = L.bounds(
		        this.project(maxBounds.getNorthEast(), zoom),
		        this.project(maxBounds.getSouthWest(), zoom)
		    ),
		    minOffset = projectedMaxBounds.min.subtract(pxBounds.min),
		    maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),

		    dx = this._rebound(minOffset.x, -maxOffset.x),
		    dy = this._rebound(minOffset.y, -maxOffset.y);

		return new L.Point(dx, dy);
	},

	_rebound: function (left, right) {
		return left + right > 0 ?
			Math.round(left - right) / 2 :
			Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
	},

	_limitZoom: function (zoom) {
		var min = this.getMinZoom(),
		    max = this.getMaxZoom(),
		    snap = L.Browser.any3d ? this.options.zoomSnap : 1;
		if (snap) {
			zoom = Math.round(zoom / snap) * snap;
		}
		return Math.max(min, Math.min(max, zoom));
	},

	_onPanTransitionStep: function () {
		this.fire('move');
	},

	_onPanTransitionEnd: function () {
		L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
		this.fire('moveend');
	},

	_tryAnimatedPan: function (center, options) {
		// difference between the new and current centers in pixels
		var offset = this._getCenterOffset(center)._floor();

		// don't animate too far unless animate: true specified in options
		if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }

		this.panBy(offset, options);

		return true;
	},

	_createAnimProxy: function () {

		var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');
		this._panes.mapPane.appendChild(proxy);

		this.on('zoomanim', function (e) {
			var prop = L.DomUtil.TRANSFORM,
			    transform = proxy.style[prop];

			L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));

			// workaround for case when transform is the same and so transitionend event is not fired
			if (transform === proxy.style[prop] && this._animatingZoom) {
				this._onZoomTransitionEnd();
			}
		}, this);

		this.on('load moveend', function () {
			var c = this.getCenter(),
			    z = this.getZoom();
			L.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));
		}, this);
	},

	_catchTransitionEnd: function (e) {
		if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
			this._onZoomTransitionEnd();
		}
	},

	_nothingToAnimate: function () {
		return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
	},

	_tryAnimatedZoom: function (center, zoom, options) {

		if (this._animatingZoom) { return true; }

		options = options || {};

		// don't animate if disabled, not supported or zoom difference is too large
		if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
		        Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }

		// offset is the pixel coords of the zoom origin relative to the current center
		var scale = this.getZoomScale(zoom),
		    offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);

		// don't animate if the zoom origin isn't within one screen from the current center, unless forced
		if (options.animate !== true && !this.getSize().contains(offset)) { return false; }

		L.Util.requestAnimFrame(function () {
			this
			    ._moveStart(true)
			    ._animateZoom(center, zoom, true);
		}, this);

		return true;
	},

	_animateZoom: function (center, zoom, startAnim, noUpdate) {
		if (startAnim) {
			this._animatingZoom = true;

			// remember what center/zoom to set after animation
			this._animateToCenter = center;
			this._animateToZoom = zoom;

			L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
		}

		// @event zoomanim: ZoomAnimEvent
		// Fired on every frame of a zoom animation
		this.fire('zoomanim', {
			center: center,
			zoom: zoom,
			noUpdate: noUpdate
		});

		// Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693
		setTimeout(L.bind(this._onZoomTransitionEnd, this), 250);
	},

	_onZoomTransitionEnd: function () {
		if (!this._animatingZoom) { return; }

		L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');

		this._animatingZoom = false;

		this._move(this._animateToCenter, this._animateToZoom);

		// This anim frame should prevent an obscure iOS webkit tile loading race condition.
		L.Util.requestAnimFrame(function () {
			this._moveEnd(true);
		}, this);
	}
});

// @section

// @factory L.map(id: String, options?: Map options)
// Instantiates a map object given the DOM ID of a `<div>` element
// and optionally an object literal with `Map options`.
//
// @alternative
// @factory L.map(el: HTMLElement, options?: Map options)
// Instantiates a map object given an instance of a `<div>` HTML element
// and optionally an object literal with `Map options`.
L.map = function (id, options) {
	return new L.Map(id, options);
};




/*
 * @class Layer
 * @inherits Evented
 * @aka L.Layer
 * @aka ILayer
 *
 * A set of methods from the Layer base class that all Leaflet layers use.
 * Inherits all methods, options and events from `L.Evented`.
 *
 * @example
 *
 * ```js
 * var layer = L.Marker(latlng).addTo(map);
 * layer.addTo(map);
 * layer.remove();
 * ```
 *
 * @event add: Event
 * Fired after the layer is added to a map
 *
 * @event remove: Event
 * Fired after the layer is removed from a map
 */


L.Layer = L.Evented.extend({

	// Classes extending `L.Layer` will inherit the following options:
	options: {
		// @option pane: String = 'overlayPane'
		// By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.
		pane: 'overlayPane',
		nonBubblingEvents: [],  // Array of events that should not be bubbled to DOM parents (like the map),

		// @option attribution: String = null
		// String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox".
		attribution: null
	},

	/* @section
	 * Classes extending `L.Layer` will inherit the following methods:
	 *
	 * @method addTo(map: Map): this
	 * Adds the layer to the given map
	 */
	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	// @method remove: this
	// Removes the layer from the map it is currently active on.
	remove: function () {
		return this.removeFrom(this._map || this._mapToAdd);
	},

	// @method removeFrom(map: Map): this
	// Removes the layer from the given map
	removeFrom: function (obj) {
		if (obj) {
			obj.removeLayer(this);
		}
		return this;
	},

	// @method getPane(name? : String): HTMLElement
	// Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.
	getPane: function (name) {
		return this._map.getPane(name ? (this.options[name] || name) : this.options.pane);
	},

	addInteractiveTarget: function (targetEl) {
		this._map._targets[L.stamp(targetEl)] = this;
		return this;
	},

	removeInteractiveTarget: function (targetEl) {
		delete this._map._targets[L.stamp(targetEl)];
		return this;
	},

	// @method getAttribution: String
	// Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).
	getAttribution: function () {
		return this.options.attribution;
	},

	_layerAdd: function (e) {
		var map = e.target;

		// check in case layer gets added and then removed before the map is ready
		if (!map.hasLayer(this)) { return; }

		this._map = map;
		this._zoomAnimated = map._zoomAnimated;

		if (this.getEvents) {
			var events = this.getEvents();
			map.on(events, this);
			this.once('remove', function () {
				map.off(events, this);
			}, this);
		}

		this.onAdd(map);

		if (this.getAttribution && map.attributionControl) {
			map.attributionControl.addAttribution(this.getAttribution());
		}

		this.fire('add');
		map.fire('layeradd', {layer: this});
	}
});

/* @section Extension methods
 * @uninheritable
 *
 * Every layer should extend from `L.Layer` and (re-)implement the following methods.
 *
 * @method onAdd(map: Map): this
 * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).
 *
 * @method onRemove(map: Map): this
 * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).
 *
 * @method getEvents(): Object
 * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.
 *
 * @method getAttribution(): String
 * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.
 *
 * @method beforeAdd(map: Map): this
 * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.
 */


/* @namespace Map
 * @section Layer events
 *
 * @event layeradd: LayerEvent
 * Fired when a new layer is added to the map.
 *
 * @event layerremove: LayerEvent
 * Fired when some layer is removed from the map
 *
 * @section Methods for Layers and Controls
 */
L.Map.include({
	// @method addLayer(layer: Layer): this
	// Adds the given layer to the map
	addLayer: function (layer) {
		var id = L.stamp(layer);
		if (this._layers[id]) { return this; }
		this._layers[id] = layer;

		layer._mapToAdd = this;

		if (layer.beforeAdd) {
			layer.beforeAdd(this);
		}

		this.whenReady(layer._layerAdd, layer);

		return this;
	},

	// @method removeLayer(layer: Layer): this
	// Removes the given layer from the map.
	removeLayer: function (layer) {
		var id = L.stamp(layer);

		if (!this._layers[id]) { return this; }

		if (this._loaded) {
			layer.onRemove(this);
		}

		if (layer.getAttribution && this.attributionControl) {
			this.attributionControl.removeAttribution(layer.getAttribution());
		}

		delete this._layers[id];

		if (this._loaded) {
			this.fire('layerremove', {layer: layer});
			layer.fire('remove');
		}

		layer._map = layer._mapToAdd = null;

		return this;
	},

	// @method hasLayer(layer: Layer): Boolean
	// Returns `true` if the given layer is currently added to the map
	hasLayer: function (layer) {
		return !!layer && (L.stamp(layer) in this._layers);
	},

	/* @method eachLayer(fn: Function, context?: Object): this
	 * Iterates over the layers of the map, optionally specifying context of the iterator function.
	 * ```
	 * map.eachLayer(function(layer){
	 *     layer.bindPopup('Hello');
	 * });
	 * ```
	 */
	eachLayer: function (method, context) {
		for (var i in this._layers) {
			method.call(context, this._layers[i]);
		}
		return this;
	},

	_addLayers: function (layers) {
		layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];

		for (var i = 0, len = layers.length; i < len; i++) {
			this.addLayer(layers[i]);
		}
	},

	_addZoomLimit: function (layer) {
		if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
			this._zoomBoundLayers[L.stamp(layer)] = layer;
			this._updateZoomLevels();
		}
	},

	_removeZoomLimit: function (layer) {
		var id = L.stamp(layer);

		if (this._zoomBoundLayers[id]) {
			delete this._zoomBoundLayers[id];
			this._updateZoomLevels();
		}
	},

	_updateZoomLevels: function () {
		var minZoom = Infinity,
		    maxZoom = -Infinity,
		    oldZoomSpan = this._getZoomSpan();

		for (var i in this._zoomBoundLayers) {
			var options = this._zoomBoundLayers[i].options;

			minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
			maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
		}

		this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
		this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;

		// @section Map state change events
		// @event zoomlevelschange: Event
		// Fired when the number of zoomlevels on the map is changed due
		// to adding or removing a layer.
		if (oldZoomSpan !== this._getZoomSpan()) {
			this.fire('zoomlevelschange');
		}

		if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {
			this.setZoom(this._layersMaxZoom);
		}
		if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {
			this.setZoom(this._layersMinZoom);
		}
	}
});



/*
 * @namespace DomEvent
 * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.
 */

// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.



var eventsKey = '_leaflet_events';

L.DomEvent = {

	// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this
	// Adds a listener function (`fn`) to a particular DOM event type of the
	// element `el`. You can optionally specify the context of the listener
	// (object the `this` keyword will point to). You can also pass several
	// space-separated types (e.g. `'click dblclick'`).

	// @alternative
	// @function on(el: HTMLElement, eventMap: Object, context?: Object): this
	// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
	on: function (obj, types, fn, context) {

		if (typeof types === 'object') {
			for (var type in types) {
				this._on(obj, type, types[type], fn);
			}
		} else {
			types = L.Util.splitWords(types);

			for (var i = 0, len = types.length; i < len; i++) {
				this._on(obj, types[i], fn, context);
			}
		}

		return this;
	},

	// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this
	// Removes a previously added listener function. If no function is specified,
	// it will remove all the listeners of that particular DOM event from the element.
	// Note that if you passed a custom context to on, you must pass the same
	// context to `off` in order to remove the listener.

	// @alternative
	// @function off(el: HTMLElement, eventMap: Object, context?: Object): this
	// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
	off: function (obj, types, fn, context) {

		if (typeof types === 'object') {
			for (var type in types) {
				this._off(obj, type, types[type], fn);
			}
		} else {
			types = L.Util.splitWords(types);

			for (var i = 0, len = types.length; i < len; i++) {
				this._off(obj, types[i], fn, context);
			}
		}

		return this;
	},

	_on: function (obj, type, fn, context) {
		var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');

		if (obj[eventsKey] && obj[eventsKey][id]) { return this; }

		var handler = function (e) {
			return fn.call(context || obj, e || window.event);
		};

		var originalHandler = handler;

		if (L.Browser.pointer && type.indexOf('touch') === 0) {
			this.addPointerListener(obj, type, handler, id);

		} else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener &&
		           !(L.Browser.pointer && L.Browser.chrome)) {
			// Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener
			// See #5180
			this.addDoubleTapListener(obj, handler, id);

		} else if ('addEventListener' in obj) {

			if (type === 'mousewheel') {
				obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);

			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
				handler = function (e) {
					e = e || window.event;
					if (L.DomEvent._isExternalTarget(obj, e)) {
						originalHandler(e);
					}
				};
				obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);

			} else {
				if (type === 'click' && L.Browser.android) {
					handler = function (e) {
						return L.DomEvent._filterClick(e, originalHandler);
					};
				}
				obj.addEventListener(type, handler, false);
			}

		} else if ('attachEvent' in obj) {
			obj.attachEvent('on' + type, handler);
		}

		obj[eventsKey] = obj[eventsKey] || {};
		obj[eventsKey][id] = handler;

		return this;
	},

	_off: function (obj, type, fn, context) {

		var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),
		    handler = obj[eventsKey] && obj[eventsKey][id];

		if (!handler) { return this; }

		if (L.Browser.pointer && type.indexOf('touch') === 0) {
			this.removePointerListener(obj, type, id);

		} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
			this.removeDoubleTapListener(obj, id);

		} else if ('removeEventListener' in obj) {

			if (type === 'mousewheel') {
				obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);

			} else {
				obj.removeEventListener(
					type === 'mouseenter' ? 'mouseover' :
					type === 'mouseleave' ? 'mouseout' : type, handler, false);
			}

		} else if ('detachEvent' in obj) {
			obj.detachEvent('on' + type, handler);
		}

		obj[eventsKey][id] = null;

		return this;
	},

	// @function stopPropagation(ev: DOMEvent): this
	// Stop the given event from propagation to parent elements. Used inside the listener functions:
	// ```js
	// L.DomEvent.on(div, 'click', function (ev) {
	// 	L.DomEvent.stopPropagation(ev);
	// });
	// ```
	stopPropagation: function (e) {

		if (e.stopPropagation) {
			e.stopPropagation();
		} else if (e.originalEvent) {  // In case of Leaflet event.
			e.originalEvent._stopped = true;
		} else {
			e.cancelBubble = true;
		}
		L.DomEvent._skipped(e);

		return this;
	},

	// @function disableScrollPropagation(el: HTMLElement): this
	// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).
	disableScrollPropagation: function (el) {
		return L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation);
	},

	// @function disableClickPropagation(el: HTMLElement): this
	// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,
	// `'mousedown'` and `'touchstart'` events (plus browser variants).
	disableClickPropagation: function (el) {
		var stop = L.DomEvent.stopPropagation;

		L.DomEvent.on(el, L.Draggable.START.join(' '), stop);

		return L.DomEvent.on(el, {
			click: L.DomEvent._fakeStop,
			dblclick: stop
		});
	},

	// @function preventDefault(ev: DOMEvent): this
	// Prevents the default action of the DOM Event `ev` from happening (such as
	// following a link in the href of the a element, or doing a POST request
	// with page reload when a `<form>` is submitted).
	// Use it inside listener functions.
	preventDefault: function (e) {

		if (e.preventDefault) {
			e.preventDefault();
		} else {
			e.returnValue = false;
		}
		return this;
	},

	// @function stop(ev): this
	// Does `stopPropagation` and `preventDefault` at the same time.
	stop: function (e) {
		return L.DomEvent
			.preventDefault(e)
			.stopPropagation(e);
	},

	// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point
	// Gets normalized mouse position from a DOM event relative to the
	// `container` or to the whole page if not specified.
	getMousePosition: function (e, container) {
		if (!container) {
			return new L.Point(e.clientX, e.clientY);
		}

		var rect = container.getBoundingClientRect();

		return new L.Point(
			e.clientX - rect.left - container.clientLeft,
			e.clientY - rect.top - container.clientTop);
	},

	// Chrome on Win scrolls double the pixels as in other platforms (see #4538),
	// and Firefox scrolls device pixels, not CSS pixels
	_wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 :
	                L.Browser.gecko ? window.devicePixelRatio :
	                1,

	// @function getWheelDelta(ev: DOMEvent): Number
	// Gets normalized wheel delta from a mousewheel DOM event, in vertical
	// pixels scrolled (negative if scrolling down).
	// Events from pointing devices without precise scrolling are mapped to
	// a best guess of 60 pixels.
	getWheelDelta: function (e) {
		return (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta
		       (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels
		       (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines
		       (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages
		       (e.deltaX || e.deltaZ) ? 0 :	// Skip horizontal/depth wheel events
		       e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels
		       (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines
		       e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages
		       0;
	},

	_skipEvents: {},

	_fakeStop: function (e) {
		// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
		L.DomEvent._skipEvents[e.type] = true;
	},

	_skipped: function (e) {
		var skipped = this._skipEvents[e.type];
		// reset when checking, as it's only used in map container and propagates outside of the map
		this._skipEvents[e.type] = false;
		return skipped;
	},

	// check if element really left/entered the event target (for mouseenter/mouseleave)
	_isExternalTarget: function (el, e) {

		var related = e.relatedTarget;

		if (!related) { return true; }

		try {
			while (related && (related !== el)) {
				related = related.parentNode;
			}
		} catch (err) {
			return false;
		}
		return (related !== el);
	},

	// this is a horrible workaround for a bug in Android where a single touch triggers two click events
	_filterClick: function (e, handler) {
		var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),
		    elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);

		// are they closer together than 500ms yet more than 100ms?
		// Android typically triggers them ~300ms apart while multiple listeners
		// on the same event should be triggered far faster;
		// or check if click is simulated on the element, and if it is, reject any non-simulated events

		if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
			L.DomEvent.stop(e);
			return;
		}
		L.DomEvent._lastClick = timeStamp;

		handler(e);
	}
};

// @function addListener(…): this
// Alias to [`L.DomEvent.on`](#domevent-on)
L.DomEvent.addListener = L.DomEvent.on;

// @function removeListener(…): this
// Alias to [`L.DomEvent.off`](#domevent-off)
L.DomEvent.removeListener = L.DomEvent.off;



/*
 * @class PosAnimation
 * @aka L.PosAnimation
 * @inherits Evented
 * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.
 *
 * @example
 * ```js
 * var fx = new L.PosAnimation();
 * fx.run(el, [300, 500], 0.5);
 * ```
 *
 * @constructor L.PosAnimation()
 * Creates a `PosAnimation` object.
 *
 */

L.PosAnimation = L.Evented.extend({

	// @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)
	// Run an animation of a given element to a new position, optionally setting
	// duration in seconds (`0.25` by default) and easing linearity factor (3rd
	// argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),
	// `0.5` by default).
	run: function (el, newPos, duration, easeLinearity) {
		this.stop();

		this._el = el;
		this._inProgress = true;
		this._duration = duration || 0.25;
		this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);

		this._startPos = L.DomUtil.getPosition(el);
		this._offset = newPos.subtract(this._startPos);
		this._startTime = +new Date();

		// @event start: Event
		// Fired when the animation starts
		this.fire('start');

		this._animate();
	},

	// @method stop()
	// Stops the animation (if currently running).
	stop: function () {
		if (!this._inProgress) { return; }

		this._step(true);
		this._complete();
	},

	_animate: function () {
		// animation loop
		this._animId = L.Util.requestAnimFrame(this._animate, this);
		this._step();
	},

	_step: function (round) {
		var elapsed = (+new Date()) - this._startTime,
		    duration = this._duration * 1000;

		if (elapsed < duration) {
			this._runFrame(this._easeOut(elapsed / duration), round);
		} else {
			this._runFrame(1);
			this._complete();
		}
	},

	_runFrame: function (progress, round) {
		var pos = this._startPos.add(this._offset.multiplyBy(progress));
		if (round) {
			pos._round();
		}
		L.DomUtil.setPosition(this._el, pos);

		// @event step: Event
		// Fired continuously during the animation.
		this.fire('step');
	},

	_complete: function () {
		L.Util.cancelAnimFrame(this._animId);

		this._inProgress = false;
		// @event end: Event
		// Fired when the animation ends.
		this.fire('end');
	},

	_easeOut: function (t) {
		return 1 - Math.pow(1 - t, this._easeOutPower);
	}
});



/*
 * @namespace Projection
 * @projection L.Projection.Mercator
 *
 * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS.
 */

L.Projection.Mercator = {
	R: 6378137,
	R_MINOR: 6356752.314245179,

	bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),

	project: function (latlng) {
		var d = Math.PI / 180,
		    r = this.R,
		    y = latlng.lat * d,
		    tmp = this.R_MINOR / r,
		    e = Math.sqrt(1 - tmp * tmp),
		    con = e * Math.sin(y);

		var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);
		y = -r * Math.log(Math.max(ts, 1E-10));

		return new L.Point(latlng.lng * d * r, y);
	},

	unproject: function (point) {
		var d = 180 / Math.PI,
		    r = this.R,
		    tmp = this.R_MINOR / r,
		    e = Math.sqrt(1 - tmp * tmp),
		    ts = Math.exp(-point.y / r),
		    phi = Math.PI / 2 - 2 * Math.atan(ts);

		for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {
			con = e * Math.sin(phi);
			con = Math.pow((1 - con) / (1 + con), e / 2);
			dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;
			phi += dphi;
		}

		return new L.LatLng(phi * d, point.x * d / r);
	}
};



/*
 * @namespace CRS
 * @crs L.CRS.EPSG3395
 *
 * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.
 */

L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {
	code: 'EPSG:3395',
	projection: L.Projection.Mercator,

	transformation: (function () {
		var scale = 0.5 / (Math.PI * L.Projection.Mercator.R);
		return new L.Transformation(scale, 0.5, -scale, 0.5);
	}())
});



/*
 * @class GridLayer
 * @inherits Layer
 * @aka L.GridLayer
 *
 * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.
 * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.
 *
 *
 * @section Synchronous usage
 * @example
 *
 * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.
 *
 * ```js
 * var CanvasLayer = L.GridLayer.extend({
 *     createTile: function(coords){
 *         // create a <canvas> element for drawing
 *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');
 *
 *         // setup tile width and height according to the options
 *         var size = this.getTileSize();
 *         tile.width = size.x;
 *         tile.height = size.y;
 *
 *         // get a canvas context and draw something on it using coords.x, coords.y and coords.z
 *         var ctx = tile.getContext('2d');
 *
 *         // return the tile so it can be rendered on screen
 *         return tile;
 *     }
 * });
 * ```
 *
 * @section Asynchronous usage
 * @example
 *
 * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.
 *
 * ```js
 * var CanvasLayer = L.GridLayer.extend({
 *     createTile: function(coords, done){
 *         var error;
 *
 *         // create a <canvas> element for drawing
 *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');
 *
 *         // setup tile width and height according to the options
 *         var size = this.getTileSize();
 *         tile.width = size.x;
 *         tile.height = size.y;
 *
 *         // draw something asynchronously and pass the tile to the done() callback
 *         setTimeout(function() {
 *             done(error, tile);
 *         }, 1000);
 *
 *         return tile;
 *     }
 * });
 * ```
 *
 * @section
 */


L.GridLayer = L.Layer.extend({

	// @section
	// @aka GridLayer options
	options: {
		// @option tileSize: Number|Point = 256
		// Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.
		tileSize: 256,

		// @option opacity: Number = 1.0
		// Opacity of the tiles. Can be used in the `createTile()` function.
		opacity: 1,

		// @option updateWhenIdle: Boolean = depends
		// If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`.
		updateWhenIdle: L.Browser.mobile,

		// @option updateWhenZooming: Boolean = true
		// By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.
		updateWhenZooming: true,

		// @option updateInterval: Number = 200
		// Tiles will not update more than once every `updateInterval` milliseconds when panning.
		updateInterval: 200,

		// @option zIndex: Number = 1
		// The explicit zIndex of the tile layer.
		zIndex: 1,

		// @option bounds: LatLngBounds = undefined
		// If set, tiles will only be loaded inside the set `LatLngBounds`.
		bounds: null,

		// @option minZoom: Number = 0
		// The minimum zoom level that tiles will be loaded at. By default the entire map.
		minZoom: 0,

		// @option maxZoom: Number = undefined
		// The maximum zoom level that tiles will be loaded at.
		maxZoom: undefined,

		// @option noWrap: Boolean = false
		// Whether the layer is wrapped around the antimeridian. If `true`, the
		// GridLayer will only be displayed once at low zoom levels. Has no
		// effect when the [map CRS](#map-crs) doesn't wrap around. Can be used
		// in combination with [`bounds`](#gridlayer-bounds) to prevent requesting
		// tiles outside the CRS limits.
		noWrap: false,

		// @option pane: String = 'tilePane'
		// `Map pane` where the grid layer will be added.
		pane: 'tilePane',

		// @option className: String = ''
		// A custom class name to assign to the tile layer. Empty by default.
		className: '',

		// @option keepBuffer: Number = 2
		// When panning the map, keep this many rows and columns of tiles before unloading them.
		keepBuffer: 2
	},

	initialize: function (options) {
		L.setOptions(this, options);
	},

	onAdd: function () {
		this._initContainer();

		this._levels = {};
		this._tiles = {};

		this._resetView();
		this._update();
	},

	beforeAdd: function (map) {
		map._addZoomLimit(this);
	},

	onRemove: function (map) {
		this._removeAllTiles();
		L.DomUtil.remove(this._container);
		map._removeZoomLimit(this);
		this._container = null;
		this._tileZoom = null;
	},

	// @method bringToFront: this
	// Brings the tile layer to the top of all tile layers.
	bringToFront: function () {
		if (this._map) {
			L.DomUtil.toFront(this._container);
			this._setAutoZIndex(Math.max);
		}
		return this;
	},

	// @method bringToBack: this
	// Brings the tile layer to the bottom of all tile layers.
	bringToBack: function () {
		if (this._map) {
			L.DomUtil.toBack(this._container);
			this._setAutoZIndex(Math.min);
		}
		return this;
	},

	// @method getContainer: HTMLElement
	// Returns the HTML element that contains the tiles for this layer.
	getContainer: function () {
		return this._container;
	},

	// @method setOpacity(opacity: Number): this
	// Changes the [opacity](#gridlayer-opacity) of the grid layer.
	setOpacity: function (opacity) {
		this.options.opacity = opacity;
		this._updateOpacity();
		return this;
	},

	// @method setZIndex(zIndex: Number): this
	// Changes the [zIndex](#gridlayer-zindex) of the grid layer.
	setZIndex: function (zIndex) {
		this.options.zIndex = zIndex;
		this._updateZIndex();

		return this;
	},

	// @method isLoading: Boolean
	// Returns `true` if any tile in the grid layer has not finished loading.
	isLoading: function () {
		return this._loading;
	},

	// @method redraw: this
	// Causes the layer to clear all the tiles and request them again.
	redraw: function () {
		if (this._map) {
			this._removeAllTiles();
			this._update();
		}
		return this;
	},

	getEvents: function () {
		var events = {
			viewprereset: this._invalidateAll,
			viewreset: this._resetView,
			zoom: this._resetView,
			moveend: this._onMoveEnd
		};

		if (!this.options.updateWhenIdle) {
			// update tiles on move, but not more often than once per given interval
			if (!this._onMove) {
				this._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this);
			}

			events.move = this._onMove;
		}

		if (this._zoomAnimated) {
			events.zoomanim = this._animateZoom;
		}

		return events;
	},

	// @section Extension methods
	// Layers extending `GridLayer` shall reimplement the following method.
	// @method createTile(coords: Object, done?: Function): HTMLElement
	// Called only internally, must be overriden by classes extending `GridLayer`.
	// Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback
	// is specified, it must be called when the tile has finished loading and drawing.
	createTile: function () {
		return document.createElement('div');
	},

	// @section
	// @method getTileSize: Point
	// Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.
	getTileSize: function () {
		var s = this.options.tileSize;
		return s instanceof L.Point ? s : new L.Point(s, s);
	},

	_updateZIndex: function () {
		if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {
			this._container.style.zIndex = this.options.zIndex;
		}
	},

	_setAutoZIndex: function (compare) {
		// go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)

		var layers = this.getPane().children,
		    edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min

		for (var i = 0, len = layers.length, zIndex; i < len; i++) {

			zIndex = layers[i].style.zIndex;

			if (layers[i] !== this._container && zIndex) {
				edgeZIndex = compare(edgeZIndex, +zIndex);
			}
		}

		if (isFinite(edgeZIndex)) {
			this.options.zIndex = edgeZIndex + compare(-1, 1);
			this._updateZIndex();
		}
	},

	_updateOpacity: function () {
		if (!this._map) { return; }

		// IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
		if (L.Browser.ielt9) { return; }

		L.DomUtil.setOpacity(this._container, this.options.opacity);

		var now = +new Date(),
		    nextFrame = false,
		    willPrune = false;

		for (var key in this._tiles) {
			var tile = this._tiles[key];
			if (!tile.current || !tile.loaded) { continue; }

			var fade = Math.min(1, (now - tile.loaded) / 200);

			L.DomUtil.setOpacity(tile.el, fade);
			if (fade < 1) {
				nextFrame = true;
			} else {
				if (tile.active) { willPrune = true; }
				tile.active = true;
			}
		}

		if (willPrune && !this._noPrune) { this._pruneTiles(); }

		if (nextFrame) {
			L.Util.cancelAnimFrame(this._fadeFrame);
			this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
		}
	},

	_initContainer: function () {
		if (this._container) { return; }

		this._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));
		this._updateZIndex();

		if (this.options.opacity < 1) {
			this._updateOpacity();
		}

		this.getPane().appendChild(this._container);
	},

	_updateLevels: function () {

		var zoom = this._tileZoom,
		    maxZoom = this.options.maxZoom;

		if (zoom === undefined) { return undefined; }

		for (var z in this._levels) {
			if (this._levels[z].el.children.length || z === zoom) {
				this._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);
			} else {
				L.DomUtil.remove(this._levels[z].el);
				this._removeTilesAtZoom(z);
				delete this._levels[z];
			}
		}

		var level = this._levels[zoom],
		    map = this._map;

		if (!level) {
			level = this._levels[zoom] = {};

			level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
			level.el.style.zIndex = maxZoom;

			level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
			level.zoom = zoom;

			this._setZoomTransform(level, map.getCenter(), map.getZoom());

			// force the browser to consider the newly added element for transition
			L.Util.falseFn(level.el.offsetWidth);
		}

		this._level = level;

		return level;
	},

	_pruneTiles: function () {
		if (!this._map) {
			return;
		}

		var key, tile;

		var zoom = this._map.getZoom();
		if (zoom > this.options.maxZoom ||
			zoom < this.options.minZoom) {
			this._removeAllTiles();
			return;
		}

		for (key in this._tiles) {
			tile = this._tiles[key];
			tile.retain = tile.current;
		}

		for (key in this._tiles) {
			tile = this._tiles[key];
			if (tile.current && !tile.active) {
				var coords = tile.coords;
				if (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {
					this._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);
				}
			}
		}

		for (key in this._tiles) {
			if (!this._tiles[key].retain) {
				this._removeTile(key);
			}
		}
	},

	_removeTilesAtZoom: function (zoom) {
		for (var key in this._tiles) {
			if (this._tiles[key].coords.z !== zoom) {
				continue;
			}
			this._removeTile(key);
		}
	},

	_removeAllTiles: function () {
		for (var key in this._tiles) {
			this._removeTile(key);
		}
	},

	_invalidateAll: function () {
		for (var z in this._levels) {
			L.DomUtil.remove(this._levels[z].el);
			delete this._levels[z];
		}
		this._removeAllTiles();

		this._tileZoom = null;
	},

	_retainParent: function (x, y, z, minZoom) {
		var x2 = Math.floor(x / 2),
		    y2 = Math.floor(y / 2),
		    z2 = z - 1,
		    coords2 = new L.Point(+x2, +y2);
		coords2.z = +z2;

		var key = this._tileCoordsToKey(coords2),
		    tile = this._tiles[key];

		if (tile && tile.active) {
			tile.retain = true;
			return true;

		} else if (tile && tile.loaded) {
			tile.retain = true;
		}

		if (z2 > minZoom) {
			return this._retainParent(x2, y2, z2, minZoom);
		}

		return false;
	},

	_retainChildren: function (x, y, z, maxZoom) {

		for (var i = 2 * x; i < 2 * x + 2; i++) {
			for (var j = 2 * y; j < 2 * y + 2; j++) {

				var coords = new L.Point(i, j);
				coords.z = z + 1;

				var key = this._tileCoordsToKey(coords),
				    tile = this._tiles[key];

				if (tile && tile.active) {
					tile.retain = true;
					continue;

				} else if (tile && tile.loaded) {
					tile.retain = true;
				}

				if (z + 1 < maxZoom) {
					this._retainChildren(i, j, z + 1, maxZoom);
				}
			}
		}
	},

	_resetView: function (e) {
		var animating = e && (e.pinch || e.flyTo);
		this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);
	},

	_animateZoom: function (e) {
		this._setView(e.center, e.zoom, true, e.noUpdate);
	},

	_setView: function (center, zoom, noPrune, noUpdate) {
		var tileZoom = Math.round(zoom);
		if ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||
		    (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {
			tileZoom = undefined;
		}

		var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);

		if (!noUpdate || tileZoomChanged) {

			this._tileZoom = tileZoom;

			if (this._abortLoading) {
				this._abortLoading();
			}

			this._updateLevels();
			this._resetGrid();

			if (tileZoom !== undefined) {
				this._update(center);
			}

			if (!noPrune) {
				this._pruneTiles();
			}

			// Flag to prevent _updateOpacity from pruning tiles during
			// a zoom anim or a pinch gesture
			this._noPrune = !!noPrune;
		}

		this._setZoomTransforms(center, zoom);
	},

	_setZoomTransforms: function (center, zoom) {
		for (var i in this._levels) {
			this._setZoomTransform(this._levels[i], center, zoom);
		}
	},

	_setZoomTransform: function (level, center, zoom) {
		var scale = this._map.getZoomScale(zoom, level.zoom),
		    translate = level.origin.multiplyBy(scale)
		        .subtract(this._map._getNewPixelOrigin(center, zoom)).round();

		if (L.Browser.any3d) {
			L.DomUtil.setTransform(level.el, translate, scale);
		} else {
			L.DomUtil.setPosition(level.el, translate);
		}
	},

	_resetGrid: function () {
		var map = this._map,
		    crs = map.options.crs,
		    tileSize = this._tileSize = this.getTileSize(),
		    tileZoom = this._tileZoom;

		var bounds = this._map.getPixelWorldBounds(this._tileZoom);
		if (bounds) {
			this._globalTileRange = this._pxBoundsToTileRange(bounds);
		}

		this._wrapX = crs.wrapLng && !this.options.noWrap && [
			Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),
			Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)
		];
		this._wrapY = crs.wrapLat && !this.options.noWrap && [
			Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),
			Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)
		];
	},

	_onMoveEnd: function () {
		if (!this._map || this._map._animatingZoom) { return; }

		this._update();
	},

	_getTiledPixelBounds: function (center) {
		var map = this._map,
		    mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),
		    scale = map.getZoomScale(mapZoom, this._tileZoom),
		    pixelCenter = map.project(center, this._tileZoom).floor(),
		    halfSize = map.getSize().divideBy(scale * 2);

		return new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));
	},

	// Private method to load tiles in the grid's active zoom level according to map bounds
	_update: function (center) {
		var map = this._map;
		if (!map) { return; }
		var zoom = map.getZoom();

		if (center === undefined) { center = map.getCenter(); }
		if (this._tileZoom === undefined) { return; }	// if out of minzoom/maxzoom

		var pixelBounds = this._getTiledPixelBounds(center),
		    tileRange = this._pxBoundsToTileRange(pixelBounds),
		    tileCenter = tileRange.getCenter(),
		    queue = [],
		    margin = this.options.keepBuffer,
		    noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),
		                              tileRange.getTopRight().add([margin, -margin]));

		for (var key in this._tiles) {
			var c = this._tiles[key].coords;
			if (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) {
				this._tiles[key].current = false;
			}
		}

		// _update just loads more tiles. If the tile zoom level differs too much
		// from the map's, let _setView reset levels and prune old tiles.
		if (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }

		// create a queue of coordinates to load tiles from
		for (var j = tileRange.min.y; j <= tileRange.max.y; j++) {
			for (var i = tileRange.min.x; i <= tileRange.max.x; i++) {
				var coords = new L.Point(i, j);
				coords.z = this._tileZoom;

				if (!this._isValidTile(coords)) { continue; }

				var tile = this._tiles[this._tileCoordsToKey(coords)];
				if (tile) {
					tile.current = true;
				} else {
					queue.push(coords);
				}
			}
		}

		// sort tile queue to load tiles in order of their distance to center
		queue.sort(function (a, b) {
			return a.distanceTo(tileCenter) - b.distanceTo(tileCenter);
		});

		if (queue.length !== 0) {
			// if it's the first batch of tiles to load
			if (!this._loading) {
				this._loading = true;
				// @event loading: Event
				// Fired when the grid layer starts loading tiles.
				this.fire('loading');
			}

			// create DOM fragment to append tiles in one batch
			var fragment = document.createDocumentFragment();

			for (i = 0; i < queue.length; i++) {
				this._addTile(queue[i], fragment);
			}

			this._level.el.appendChild(fragment);
		}
	},

	_isValidTile: function (coords) {
		var crs = this._map.options.crs;

		if (!crs.infinite) {
			// don't load tile if it's out of bounds and not wrapped
			var bounds = this._globalTileRange;
			if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||
			    (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }
		}

		if (!this.options.bounds) { return true; }

		// don't load tile if it doesn't intersect the bounds in options
		var tileBounds = this._tileCoordsToBounds(coords);
		return L.latLngBounds(this.options.bounds).overlaps(tileBounds);
	},

	_keyToBounds: function (key) {
		return this._tileCoordsToBounds(this._keyToTileCoords(key));
	},

	// converts tile coordinates to its geographical bounds
	_tileCoordsToBounds: function (coords) {

		var map = this._map,
		    tileSize = this.getTileSize(),

		    nwPoint = coords.scaleBy(tileSize),
		    sePoint = nwPoint.add(tileSize),

		    nw = map.unproject(nwPoint, coords.z),
		    se = map.unproject(sePoint, coords.z),
		    bounds = new L.LatLngBounds(nw, se);

		if (!this.options.noWrap) {
			map.wrapLatLngBounds(bounds);
		}

		return bounds;
	},

	// converts tile coordinates to key for the tile cache
	_tileCoordsToKey: function (coords) {
		return coords.x + ':' + coords.y + ':' + coords.z;
	},

	// converts tile cache key to coordinates
	_keyToTileCoords: function (key) {
		var k = key.split(':'),
		    coords = new L.Point(+k[0], +k[1]);
		coords.z = +k[2];
		return coords;
	},

	_removeTile: function (key) {
		var tile = this._tiles[key];
		if (!tile) { return; }

		L.DomUtil.remove(tile.el);

		delete this._tiles[key];

		// @event tileunload: TileEvent
		// Fired when a tile is removed (e.g. when a tile goes off the screen).
		this.fire('tileunload', {
			tile: tile.el,
			coords: this._keyToTileCoords(key)
		});
	},

	_initTile: function (tile) {
		L.DomUtil.addClass(tile, 'leaflet-tile');

		var tileSize = this.getTileSize();
		tile.style.width = tileSize.x + 'px';
		tile.style.height = tileSize.y + 'px';

		tile.onselectstart = L.Util.falseFn;
		tile.onmousemove = L.Util.falseFn;

		// update opacity on tiles in IE7-8 because of filter inheritance problems
		if (L.Browser.ielt9 && this.options.opacity < 1) {
			L.DomUtil.setOpacity(tile, this.options.opacity);
		}

		// without this hack, tiles disappear after zoom on Chrome for Android
		// https://github.com/Leaflet/Leaflet/issues/2078
		if (L.Browser.android && !L.Browser.android23) {
			tile.style.WebkitBackfaceVisibility = 'hidden';
		}
	},

	_addTile: function (coords, container) {
		var tilePos = this._getTilePos(coords),
		    key = this._tileCoordsToKey(coords);

		var tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));

		this._initTile(tile);

		// if createTile is defined with a second argument ("done" callback),
		// we know that tile is async and will be ready later; otherwise
		if (this.createTile.length < 2) {
			// mark tile as ready, but delay one frame for opacity animation to happen
			L.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile));
		}

		L.DomUtil.setPosition(tile, tilePos);

		// save tile in cache
		this._tiles[key] = {
			el: tile,
			coords: coords,
			current: true
		};

		container.appendChild(tile);
		// @event tileloadstart: TileEvent
		// Fired when a tile is requested and starts loading.
		this.fire('tileloadstart', {
			tile: tile,
			coords: coords
		});
	},

	_tileReady: function (coords, err, tile) {
		if (!this._map) { return; }

		if (err) {
			// @event tileerror: TileErrorEvent
			// Fired when there is an error loading a tile.
			this.fire('tileerror', {
				error: err,
				tile: tile,
				coords: coords
			});
		}

		var key = this._tileCoordsToKey(coords);

		tile = this._tiles[key];
		if (!tile) { return; }

		tile.loaded = +new Date();
		if (this._map._fadeAnimated) {
			L.DomUtil.setOpacity(tile.el, 0);
			L.Util.cancelAnimFrame(this._fadeFrame);
			this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
		} else {
			tile.active = true;
			this._pruneTiles();
		}

		if (!err) {
			L.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');

			// @event tileload: TileEvent
			// Fired when a tile loads.
			this.fire('tileload', {
				tile: tile.el,
				coords: coords
			});
		}

		if (this._noTilesToLoad()) {
			this._loading = false;
			// @event load: Event
			// Fired when the grid layer loaded all visible tiles.
			this.fire('load');

			if (L.Browser.ielt9 || !this._map._fadeAnimated) {
				L.Util.requestAnimFrame(this._pruneTiles, this);
			} else {
				// Wait a bit more than 0.2 secs (the duration of the tile fade-in)
				// to trigger a pruning.
				setTimeout(L.bind(this._pruneTiles, this), 250);
			}
		}
	},

	_getTilePos: function (coords) {
		return coords.scaleBy(this.getTileSize()).subtract(this._level.origin);
	},

	_wrapCoords: function (coords) {
		var newCoords = new L.Point(
			this._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,
			this._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);
		newCoords.z = coords.z;
		return newCoords;
	},

	_pxBoundsToTileRange: function (bounds) {
		var tileSize = this.getTileSize();
		return new L.Bounds(
			bounds.min.unscaleBy(tileSize).floor(),
			bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));
	},

	_noTilesToLoad: function () {
		for (var key in this._tiles) {
			if (!this._tiles[key].loaded) { return false; }
		}
		return true;
	}
});

// @factory L.gridLayer(options?: GridLayer options)
// Creates a new instance of GridLayer with the supplied options.
L.gridLayer = function (options) {
	return new L.GridLayer(options);
};



/*
 * @class TileLayer
 * @inherits GridLayer
 * @aka L.TileLayer
 * Used to load and display tile layers on the map. Extends `GridLayer`.
 *
 * @example
 *
 * ```js
 * L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map);
 * ```
 *
 * @section URL template
 * @example
 *
 * A string of the following form:
 *
 * ```
 * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'
 * ```
 *
 * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles.
 *
 * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:
 *
 * ```
 * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});
 * ```
 */


L.TileLayer = L.GridLayer.extend({

	// @section
	// @aka TileLayer options
	options: {
		// @option minZoom: Number = 0
		// Minimum zoom number.
		minZoom: 0,

		// @option maxZoom: Number = 18
		// Maximum zoom number.
		maxZoom: 18,

		// @option maxNativeZoom: Number = null
		// Maximum zoom number the tile source has available. If it is specified,
		// the tiles on all zoom levels higher than `maxNativeZoom` will be loaded
		// from `maxNativeZoom` level and auto-scaled.
		maxNativeZoom: null,

		// @option minNativeZoom: Number = null
		// Minimum zoom number the tile source has available. If it is specified,
		// the tiles on all zoom levels lower than `minNativeZoom` will be loaded
		// from `minNativeZoom` level and auto-scaled.
		minNativeZoom: null,

		// @option subdomains: String|String[] = 'abc'
		// Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.
		subdomains: 'abc',

		// @option errorTileUrl: String = ''
		// URL to the tile image to show in place of the tile that failed to load.
		errorTileUrl: '',

		// @option zoomOffset: Number = 0
		// The zoom number used in tile URLs will be offset with this value.
		zoomOffset: 0,

		// @option tms: Boolean = false
		// If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).
		tms: false,

		// @option zoomReverse: Boolean = false
		// If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)
		zoomReverse: false,

		// @option detectRetina: Boolean = false
		// If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.
		detectRetina: false,

		// @option crossOrigin: Boolean = false
		// If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data.
		crossOrigin: false
	},

	initialize: function (url, options) {

		this._url = url;

		options = L.setOptions(this, options);

		// detecting retina displays, adjusting tileSize and zoom levels
		if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {

			options.tileSize = Math.floor(options.tileSize / 2);

			if (!options.zoomReverse) {
				options.zoomOffset++;
				options.maxZoom--;
			} else {
				options.zoomOffset--;
				options.minZoom++;
			}

			options.minZoom = Math.max(0, options.minZoom);
		}

		if (typeof options.subdomains === 'string') {
			options.subdomains = options.subdomains.split('');
		}

		// for https://github.com/Leaflet/Leaflet/issues/137
		if (!L.Browser.android) {
			this.on('tileunload', this._onTileRemove);
		}
	},

	// @method setUrl(url: String, noRedraw?: Boolean): this
	// Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).
	setUrl: function (url, noRedraw) {
		this._url = url;

		if (!noRedraw) {
			this.redraw();
		}
		return this;
	},

	// @method createTile(coords: Object, done?: Function): HTMLElement
	// Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)
	// to return an `<img>` HTML element with the appropiate image URL given `coords`. The `done`
	// callback is called when the tile has been loaded.
	createTile: function (coords, done) {
		var tile = document.createElement('img');

		L.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));
		L.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));

		if (this.options.crossOrigin) {
			tile.crossOrigin = '';
		}

		/*
		 Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons
		 http://www.w3.org/TR/WCAG20-TECHS/H67
		*/
		tile.alt = '';

		/*
		 Set role="presentation" to force screen readers to ignore this
		 https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
		*/
		tile.setAttribute('role', 'presentation');

		tile.src = this.getTileUrl(coords);

		return tile;
	},

	// @section Extension methods
	// @uninheritable
	// Layers extending `TileLayer` might reimplement the following method.
	// @method getTileUrl(coords: Object): String
	// Called only internally, returns the URL for a tile given its coordinates.
	// Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.
	getTileUrl: function (coords) {
		var data = {
			r: L.Browser.retina ? '@2x' : '',
			s: this._getSubdomain(coords),
			x: coords.x,
			y: coords.y,
			z: this._getZoomForUrl()
		};
		if (this._map && !this._map.options.crs.infinite) {
			var invertedY = this._globalTileRange.max.y - coords.y;
			if (this.options.tms) {
				data['y'] = invertedY;
			}
			data['-y'] = invertedY;
		}

		return L.Util.template(this._url, L.extend(data, this.options));
	},

	_tileOnLoad: function (done, tile) {
		// For https://github.com/Leaflet/Leaflet/issues/3332
		if (L.Browser.ielt9) {
			setTimeout(L.bind(done, this, null, tile), 0);
		} else {
			done(null, tile);
		}
	},

	_tileOnError: function (done, tile, e) {
		var errorUrl = this.options.errorTileUrl;
		if (errorUrl && tile.src !== errorUrl) {
			tile.src = errorUrl;
		}
		done(e, tile);
	},

	getTileSize: function () {
		var map = this._map,
		tileSize = L.GridLayer.prototype.getTileSize.call(this),
		zoom = this._tileZoom + this.options.zoomOffset,
		minNativeZoom = this.options.minNativeZoom,
		maxNativeZoom = this.options.maxNativeZoom;

		// decrease tile size when scaling below minNativeZoom
		if (minNativeZoom !== null && zoom < minNativeZoom) {
			return tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();
		}

		// increase tile size when scaling above maxNativeZoom
		if (maxNativeZoom !== null && zoom > maxNativeZoom) {
			return tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();
		}

		return tileSize;
	},

	_onTileRemove: function (e) {
		e.tile.onload = null;
	},

	_getZoomForUrl: function () {
		var zoom = this._tileZoom,
		maxZoom = this.options.maxZoom,
		zoomReverse = this.options.zoomReverse,
		zoomOffset = this.options.zoomOffset,
		minNativeZoom = this.options.minNativeZoom,
		maxNativeZoom = this.options.maxNativeZoom;

		if (zoomReverse) {
			zoom = maxZoom - zoom;
		}

		zoom += zoomOffset;

		if (minNativeZoom !== null && zoom < minNativeZoom) {
			return minNativeZoom;
		}

		if (maxNativeZoom !== null && zoom > maxNativeZoom) {
			return maxNativeZoom;
		}

		return zoom;
	},

	_getSubdomain: function (tilePoint) {
		var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
		return this.options.subdomains[index];
	},

	// stops loading all tiles in the background layer
	_abortLoading: function () {
		var i, tile;
		for (i in this._tiles) {
			if (this._tiles[i].coords.z !== this._tileZoom) {
				tile = this._tiles[i].el;

				tile.onload = L.Util.falseFn;
				tile.onerror = L.Util.falseFn;

				if (!tile.complete) {
					tile.src = L.Util.emptyImageUrl;
					L.DomUtil.remove(tile);
				}
			}
		}
	}
});


// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)
// Instantiates a tile layer object given a `URL template` and optionally an options object.

L.tileLayer = function (url, options) {
	return new L.TileLayer(url, options);
};



/*
 * @class TileLayer.WMS
 * @inherits TileLayer
 * @aka L.TileLayer.WMS
 * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.
 *
 * @example
 *
 * ```js
 * var nexrad = L.tileLayer.wms("http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi", {
 * 	layers: 'nexrad-n0r-900913',
 * 	format: 'image/png',
 * 	transparent: true,
 * 	attribution: "Weather data © 2012 IEM Nexrad"
 * });
 * ```
 */

L.TileLayer.WMS = L.TileLayer.extend({

	// @section
	// @aka TileLayer.WMS options
	// If any custom options not documented here are used, they will be sent to the
	// WMS server as extra parameters in each request URL. This can be useful for
	// [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).
	defaultWmsParams: {
		service: 'WMS',
		request: 'GetMap',

		// @option layers: String = ''
		// **(required)** Comma-separated list of WMS layers to show.
		layers: '',

		// @option styles: String = ''
		// Comma-separated list of WMS styles.
		styles: '',

		// @option format: String = 'image/jpeg'
		// WMS image format (use `'image/png'` for layers with transparency).
		format: 'image/jpeg',

		// @option transparent: Boolean = false
		// If `true`, the WMS service will return images with transparency.
		transparent: false,

		// @option version: String = '1.1.1'
		// Version of the WMS service to use
		version: '1.1.1'
	},

	options: {
		// @option crs: CRS = null
		// Coordinate Reference System to use for the WMS requests, defaults to
		// map CRS. Don't change this if you're not sure what it means.
		crs: null,

		// @option uppercase: Boolean = false
		// If `true`, WMS request parameter keys will be uppercase.
		uppercase: false
	},

	initialize: function (url, options) {

		this._url = url;

		var wmsParams = L.extend({}, this.defaultWmsParams);

		// all keys that are not TileLayer options go to WMS params
		for (var i in options) {
			if (!(i in this.options)) {
				wmsParams[i] = options[i];
			}
		}

		options = L.setOptions(this, options);

		wmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);

		this.wmsParams = wmsParams;
	},

	onAdd: function (map) {

		this._crs = this.options.crs || map.options.crs;
		this._wmsVersion = parseFloat(this.wmsParams.version);

		var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
		this.wmsParams[projectionKey] = this._crs.code;

		L.TileLayer.prototype.onAdd.call(this, map);
	},

	getTileUrl: function (coords) {

		var tileBounds = this._tileCoordsToBounds(coords),
		    nw = this._crs.project(tileBounds.getNorthWest()),
		    se = this._crs.project(tileBounds.getSouthEast()),

		    bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
			    [se.y, nw.x, nw.y, se.x] :
			    [nw.x, se.y, se.x, nw.y]).join(','),

		    url = L.TileLayer.prototype.getTileUrl.call(this, coords);

		return url +
			L.Util.getParamString(this.wmsParams, url, this.options.uppercase) +
			(this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;
	},

	// @method setParams(params: Object, noRedraw?: Boolean): this
	// Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).
	setParams: function (params, noRedraw) {

		L.extend(this.wmsParams, params);

		if (!noRedraw) {
			this.redraw();
		}

		return this;
	}
});


// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)
// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.
L.tileLayer.wms = function (url, options) {
	return new L.TileLayer.WMS(url, options);
};



/*
 * @class ImageOverlay
 * @aka L.ImageOverlay
 * @inherits Interactive layer
 *
 * Used to load and display a single image over specific bounds of the map. Extends `Layer`.
 *
 * @example
 *
 * ```js
 * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',
 * 	imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];
 * L.imageOverlay(imageUrl, imageBounds).addTo(map);
 * ```
 */

L.ImageOverlay = L.Layer.extend({

	// @section
	// @aka ImageOverlay options
	options: {
		// @option opacity: Number = 1.0
		// The opacity of the image overlay.
		opacity: 1,

		// @option alt: String = ''
		// Text for the `alt` attribute of the image (useful for accessibility).
		alt: '',

		// @option interactive: Boolean = false
		// If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.
		interactive: false,

		// @option crossOrigin: Boolean = false
		// If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data.
		crossOrigin: false
	},

	initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
		this._url = url;
		this._bounds = L.latLngBounds(bounds);

		L.setOptions(this, options);
	},

	onAdd: function () {
		if (!this._image) {
			this._initImage();

			if (this.options.opacity < 1) {
				this._updateOpacity();
			}
		}

		if (this.options.interactive) {
			L.DomUtil.addClass(this._image, 'leaflet-interactive');
			this.addInteractiveTarget(this._image);
		}

		this.getPane().appendChild(this._image);
		this._reset();
	},

	onRemove: function () {
		L.DomUtil.remove(this._image);
		if (this.options.interactive) {
			this.removeInteractiveTarget(this._image);
		}
	},

	// @method setOpacity(opacity: Number): this
	// Sets the opacity of the overlay.
	setOpacity: function (opacity) {
		this.options.opacity = opacity;

		if (this._image) {
			this._updateOpacity();
		}
		return this;
	},

	setStyle: function (styleOpts) {
		if (styleOpts.opacity) {
			this.setOpacity(styleOpts.opacity);
		}
		return this;
	},

	// @method bringToFront(): this
	// Brings the layer to the top of all overlays.
	bringToFront: function () {
		if (this._map) {
			L.DomUtil.toFront(this._image);
		}
		return this;
	},

	// @method bringToBack(): this
	// Brings the layer to the bottom of all overlays.
	bringToBack: function () {
		if (this._map) {
			L.DomUtil.toBack(this._image);
		}
		return this;
	},

	// @method setUrl(url: String): this
	// Changes the URL of the image.
	setUrl: function (url) {
		this._url = url;

		if (this._image) {
			this._image.src = url;
		}
		return this;
	},

	// @method setBounds(bounds: LatLngBounds): this
	// Update the bounds that this ImageOverlay covers
	setBounds: function (bounds) {
		this._bounds = bounds;

		if (this._map) {
			this._reset();
		}
		return this;
	},

	getEvents: function () {
		var events = {
			zoom: this._reset,
			viewreset: this._reset
		};

		if (this._zoomAnimated) {
			events.zoomanim = this._animateZoom;
		}

		return events;
	},

	// @method getBounds(): LatLngBounds
	// Get the bounds that this ImageOverlay covers
	getBounds: function () {
		return this._bounds;
	},

	// @method getElement(): HTMLElement
	// Get the img element that represents the ImageOverlay on the map
	getElement: function () {
		return this._image;
	},

	_initImage: function () {
		var img = this._image = L.DomUtil.create('img',
				'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));

		img.onselectstart = L.Util.falseFn;
		img.onmousemove = L.Util.falseFn;

		img.onload = L.bind(this.fire, this, 'load');

		if (this.options.crossOrigin) {
			img.crossOrigin = '';
		}

		img.src = this._url;
		img.alt = this.options.alt;
	},

	_animateZoom: function (e) {
		var scale = this._map.getZoomScale(e.zoom),
		    offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;

		L.DomUtil.setTransform(this._image, offset, scale);
	},

	_reset: function () {
		var image = this._image,
		    bounds = new L.Bounds(
		        this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
		        this._map.latLngToLayerPoint(this._bounds.getSouthEast())),
		    size = bounds.getSize();

		L.DomUtil.setPosition(image, bounds.min);

		image.style.width  = size.x + 'px';
		image.style.height = size.y + 'px';
	},

	_updateOpacity: function () {
		L.DomUtil.setOpacity(this._image, this.options.opacity);
	}
});

// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)
// Instantiates an image overlay object given the URL of the image and the
// geographical bounds it is tied to.
L.imageOverlay = function (url, bounds, options) {
	return new L.ImageOverlay(url, bounds, options);
};



/*
 * @class Icon
 * @aka L.Icon
 * @inherits Layer
 *
 * Represents an icon to provide when creating a marker.
 *
 * @example
 *
 * ```js
 * var myIcon = L.icon({
 *     iconUrl: 'my-icon.png',
 *     iconRetinaUrl: 'my-icon@2x.png',
 *     iconSize: [38, 95],
 *     iconAnchor: [22, 94],
 *     popupAnchor: [-3, -76],
 *     shadowUrl: 'my-icon-shadow.png',
 *     shadowRetinaUrl: 'my-icon-shadow@2x.png',
 *     shadowSize: [68, 95],
 *     shadowAnchor: [22, 94]
 * });
 *
 * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
 * ```
 *
 * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.
 *
 */

L.Icon = L.Class.extend({

	/* @section
	 * @aka Icon options
	 *
	 * @option iconUrl: String = null
	 * **(required)** The URL to the icon image (absolute or relative to your script path).
	 *
	 * @option iconRetinaUrl: String = null
	 * The URL to a retina sized version of the icon image (absolute or relative to your
	 * script path). Used for Retina screen devices.
	 *
	 * @option iconSize: Point = null
	 * Size of the icon image in pixels.
	 *
	 * @option iconAnchor: Point = null
	 * The coordinates of the "tip" of the icon (relative to its top left corner). The icon
	 * will be aligned so that this point is at the marker's geographical location. Centered
	 * by default if size is specified, also can be set in CSS with negative margins.
	 *
	 * @option popupAnchor: Point = null
	 * The coordinates of the point from which popups will "open", relative to the icon anchor.
	 *
	 * @option shadowUrl: String = null
	 * The URL to the icon shadow image. If not specified, no shadow image will be created.
	 *
	 * @option shadowRetinaUrl: String = null
	 *
	 * @option shadowSize: Point = null
	 * Size of the shadow image in pixels.
	 *
	 * @option shadowAnchor: Point = null
	 * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same
	 * as iconAnchor if not specified).
	 *
	 * @option className: String = ''
	 * A custom class name to assign to both icon and shadow images. Empty by default.
	 */

	initialize: function (options) {
		L.setOptions(this, options);
	},

	// @method createIcon(oldIcon?: HTMLElement): HTMLElement
	// Called internally when the icon has to be shown, returns a `<img>` HTML element
	// styled according to the options.
	createIcon: function (oldIcon) {
		return this._createIcon('icon', oldIcon);
	},

	// @method createShadow(oldIcon?: HTMLElement): HTMLElement
	// As `createIcon`, but for the shadow beneath it.
	createShadow: function (oldIcon) {
		return this._createIcon('shadow', oldIcon);
	},

	_createIcon: function (name, oldIcon) {
		var src = this._getIconUrl(name);

		if (!src) {
			if (name === 'icon') {
				throw new Error('iconUrl not set in Icon options (see the docs).');
			}
			return null;
		}

		var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
		this._setIconStyles(img, name);

		return img;
	},

	_setIconStyles: function (img, name) {
		var options = this.options;
		var sizeOption = options[name + 'Size'];

		if (typeof sizeOption === 'number') {
			sizeOption = [sizeOption, sizeOption];
		}

		var size = L.point(sizeOption),
		    anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
		            size && size.divideBy(2, true));

		img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');

		if (anchor) {
			img.style.marginLeft = (-anchor.x) + 'px';
			img.style.marginTop  = (-anchor.y) + 'px';
		}

		if (size) {
			img.style.width  = size.x + 'px';
			img.style.height = size.y + 'px';
		}
	},

	_createImg: function (src, el) {
		el = el || document.createElement('img');
		el.src = src;
		return el;
	},

	_getIconUrl: function (name) {
		return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
	}
});


// @factory L.icon(options: Icon options)
// Creates an icon instance with the given options.
L.icon = function (options) {
	return new L.Icon(options);
};



/*
 * @miniclass Icon.Default (Icon)
 * @aka L.Icon.Default
 * @section
 *
 * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when
 * no icon is specified. Points to the blue marker image distributed with Leaflet
 * releases.
 *
 * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`
 * (which is a set of `Icon options`).
 *
 * If you want to _completely_ replace the default icon, override the
 * `L.Marker.prototype.options.icon` with your own icon instead.
 */

L.Icon.Default = L.Icon.extend({

	options: {
		iconUrl:       'marker-icon.png',
		iconRetinaUrl: 'marker-icon-2x.png',
		shadowUrl:     'marker-shadow.png',
		iconSize:    [25, 41],
		iconAnchor:  [12, 41],
		popupAnchor: [1, -34],
		tooltipAnchor: [16, -28],
		shadowSize:  [41, 41]
	},

	_getIconUrl: function (name) {
		if (!L.Icon.Default.imagePath) {	// Deprecated, backwards-compatibility only
			L.Icon.Default.imagePath = this._detectIconPath();
		}

		// @option imagePath: String
		// `L.Icon.Default` will try to auto-detect the absolute location of the
		// blue icon images. If you are placing these images in a non-standard
		// way, set this option to point to the right absolute path.
		return (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name);
	},

	_detectIconPath: function () {
		var el = L.DomUtil.create('div',  'leaflet-default-icon-path', document.body);
		var path = L.DomUtil.getStyle(el, 'background-image') ||
		           L.DomUtil.getStyle(el, 'backgroundImage');	// IE8

		document.body.removeChild(el);

		return path.indexOf('url') === 0 ?
			path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, '') : '';
	}
});



/*
 * @class Marker
 * @inherits Interactive layer
 * @aka L.Marker
 * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.
 *
 * @example
 *
 * ```js
 * L.marker([50.5, 30.5]).addTo(map);
 * ```
 */

L.Marker = L.Layer.extend({

	// @section
	// @aka Marker options
	options: {
		// @option icon: Icon = *
		// Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used.
		icon: new L.Icon.Default(),

		// Option inherited from "Interactive layer" abstract class
		interactive: true,

		// @option draggable: Boolean = false
		// Whether the marker is draggable with mouse/touch or not.
		draggable: false,

		// @option keyboard: Boolean = true
		// Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.
		keyboard: true,

		// @option title: String = ''
		// Text for the browser tooltip that appear on marker hover (no tooltip by default).
		title: '',

		// @option alt: String = ''
		// Text for the `alt` attribute of the icon image (useful for accessibility).
		alt: '',

		// @option zIndexOffset: Number = 0
		// By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).
		zIndexOffset: 0,

		// @option opacity: Number = 1.0
		// The opacity of the marker.
		opacity: 1,

		// @option riseOnHover: Boolean = false
		// If `true`, the marker will get on top of others when you hover the mouse over it.
		riseOnHover: false,

		// @option riseOffset: Number = 250
		// The z-index offset used for the `riseOnHover` feature.
		riseOffset: 250,

		// @option pane: String = 'markerPane'
		// `Map pane` where the markers icon will be added.
		pane: 'markerPane',

		// FIXME: shadowPane is no longer a valid option
		nonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']
	},

	/* @section
	 *
	 * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:
	 */

	initialize: function (latlng, options) {
		L.setOptions(this, options);
		this._latlng = L.latLng(latlng);
	},

	onAdd: function (map) {
		this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;

		if (this._zoomAnimated) {
			map.on('zoomanim', this._animateZoom, this);
		}

		this._initIcon();
		this.update();
	},

	onRemove: function (map) {
		if (this.dragging && this.dragging.enabled()) {
			this.options.draggable = true;
			this.dragging.removeHooks();
		}

		if (this._zoomAnimated) {
			map.off('zoomanim', this._animateZoom, this);
		}

		this._removeIcon();
		this._removeShadow();
	},

	getEvents: function () {
		return {
			zoom: this.update,
			viewreset: this.update
		};
	},

	// @method getLatLng: LatLng
	// Returns the current geographical position of the marker.
	getLatLng: function () {
		return this._latlng;
	},

	// @method setLatLng(latlng: LatLng): this
	// Changes the marker position to the given point.
	setLatLng: function (latlng) {
		var oldLatLng = this._latlng;
		this._latlng = L.latLng(latlng);
		this.update();

		// @event move: Event
		// Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.
		return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});
	},

	// @method setZIndexOffset(offset: Number): this
	// Changes the [zIndex offset](#marker-zindexoffset) of the marker.
	setZIndexOffset: function (offset) {
		this.options.zIndexOffset = offset;
		return this.update();
	},

	// @method setIcon(icon: Icon): this
	// Changes the marker icon.
	setIcon: function (icon) {

		this.options.icon = icon;

		if (this._map) {
			this._initIcon();
			this.update();
		}

		if (this._popup) {
			this.bindPopup(this._popup, this._popup.options);
		}

		return this;
	},

	getElement: function () {
		return this._icon;
	},

	update: function () {

		if (this._icon) {
			var pos = this._map.latLngToLayerPoint(this._latlng).round();
			this._setPos(pos);
		}

		return this;
	},

	_initIcon: function () {
		var options = this.options,
		    classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');

		var icon = options.icon.createIcon(this._icon),
		    addIcon = false;

		// if we're not reusing the icon, remove the old one and init new one
		if (icon !== this._icon) {
			if (this._icon) {
				this._removeIcon();
			}
			addIcon = true;

			if (options.title) {
				icon.title = options.title;
			}
			if (options.alt) {
				icon.alt = options.alt;
			}
		}

		L.DomUtil.addClass(icon, classToAdd);

		if (options.keyboard) {
			icon.tabIndex = '0';
		}

		this._icon = icon;

		if (options.riseOnHover) {
			this.on({
				mouseover: this._bringToFront,
				mouseout: this._resetZIndex
			});
		}

		var newShadow = options.icon.createShadow(this._shadow),
		    addShadow = false;

		if (newShadow !== this._shadow) {
			this._removeShadow();
			addShadow = true;
		}

		if (newShadow) {
			L.DomUtil.addClass(newShadow, classToAdd);
			newShadow.alt = '';
		}
		this._shadow = newShadow;


		if (options.opacity < 1) {
			this._updateOpacity();
		}


		if (addIcon) {
			this.getPane().appendChild(this._icon);
		}
		this._initInteraction();
		if (newShadow && addShadow) {
			this.getPane('shadowPane').appendChild(this._shadow);
		}
	},

	_removeIcon: function () {
		if (this.options.riseOnHover) {
			this.off({
				mouseover: this._bringToFront,
				mouseout: this._resetZIndex
			});
		}

		L.DomUtil.remove(this._icon);
		this.removeInteractiveTarget(this._icon);

		this._icon = null;
	},

	_removeShadow: function () {
		if (this._shadow) {
			L.DomUtil.remove(this._shadow);
		}
		this._shadow = null;
	},

	_setPos: function (pos) {
		L.DomUtil.setPosition(this._icon, pos);

		if (this._shadow) {
			L.DomUtil.setPosition(this._shadow, pos);
		}

		this._zIndex = pos.y + this.options.zIndexOffset;

		this._resetZIndex();
	},

	_updateZIndex: function (offset) {
		this._icon.style.zIndex = this._zIndex + offset;
	},

	_animateZoom: function (opt) {
		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();

		this._setPos(pos);
	},

	_initInteraction: function () {

		if (!this.options.interactive) { return; }

		L.DomUtil.addClass(this._icon, 'leaflet-interactive');

		this.addInteractiveTarget(this._icon);

		if (L.Handler.MarkerDrag) {
			var draggable = this.options.draggable;
			if (this.dragging) {
				draggable = this.dragging.enabled();
				this.dragging.disable();
			}

			this.dragging = new L.Handler.MarkerDrag(this);

			if (draggable) {
				this.dragging.enable();
			}
		}
	},

	// @method setOpacity(opacity: Number): this
	// Changes the opacity of the marker.
	setOpacity: function (opacity) {
		this.options.opacity = opacity;
		if (this._map) {
			this._updateOpacity();
		}

		return this;
	},

	_updateOpacity: function () {
		var opacity = this.options.opacity;

		L.DomUtil.setOpacity(this._icon, opacity);

		if (this._shadow) {
			L.DomUtil.setOpacity(this._shadow, opacity);
		}
	},

	_bringToFront: function () {
		this._updateZIndex(this.options.riseOffset);
	},

	_resetZIndex: function () {
		this._updateZIndex(0);
	},

	_getPopupAnchor: function () {
		return this.options.icon.options.popupAnchor || [0, 0];
	},

	_getTooltipAnchor: function () {
		return this.options.icon.options.tooltipAnchor || [0, 0];
	}
});


// factory L.marker(latlng: LatLng, options? : Marker options)

// @factory L.marker(latlng: LatLng, options? : Marker options)
// Instantiates a Marker object given a geographical point and optionally an options object.
L.marker = function (latlng, options) {
	return new L.Marker(latlng, options);
};



/*
 * @class DivIcon
 * @aka L.DivIcon
 * @inherits Icon
 *
 * Represents a lightweight icon for markers that uses a simple `<div>`
 * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.
 *
 * @example
 * ```js
 * var myIcon = L.divIcon({className: 'my-div-icon'});
 * // you can set .my-div-icon styles in CSS
 *
 * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
 * ```
 *
 * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.
 */

L.DivIcon = L.Icon.extend({
	options: {
		// @section
		// @aka DivIcon options
		iconSize: [12, 12], // also can be set through CSS

		// iconAnchor: (Point),
		// popupAnchor: (Point),

		// @option html: String = ''
		// Custom HTML code to put inside the div element, empty by default.
		html: false,

		// @option bgPos: Point = [0, 0]
		// Optional relative position of the background, in pixels
		bgPos: null,

		className: 'leaflet-div-icon'
	},

	createIcon: function (oldIcon) {
		var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
		    options = this.options;

		div.innerHTML = options.html !== false ? options.html : '';

		if (options.bgPos) {
			var bgPos = L.point(options.bgPos);
			div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';
		}
		this._setIconStyles(div, 'icon');

		return div;
	},

	createShadow: function () {
		return null;
	}
});

// @factory L.divIcon(options: DivIcon options)
// Creates a `DivIcon` instance with the given options.
L.divIcon = function (options) {
	return new L.DivIcon(options);
};



/*
 * @class DivOverlay
 * @inherits Layer
 * @aka L.DivOverlay
 * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.
 */

// @namespace DivOverlay
L.DivOverlay = L.Layer.extend({

	// @section
	// @aka DivOverlay options
	options: {
		// @option offset: Point = Point(0, 7)
		// The offset of the popup position. Useful to control the anchor
		// of the popup when opening it on some overlays.
		offset: [0, 7],

		// @option className: String = ''
		// A custom CSS class name to assign to the popup.
		className: '',

		// @option pane: String = 'popupPane'
		// `Map pane` where the popup will be added.
		pane: 'popupPane'
	},

	initialize: function (options, source) {
		L.setOptions(this, options);

		this._source = source;
	},

	onAdd: function (map) {
		this._zoomAnimated = map._zoomAnimated;

		if (!this._container) {
			this._initLayout();
		}

		if (map._fadeAnimated) {
			L.DomUtil.setOpacity(this._container, 0);
		}

		clearTimeout(this._removeTimeout);
		this.getPane().appendChild(this._container);
		this.update();

		if (map._fadeAnimated) {
			L.DomUtil.setOpacity(this._container, 1);
		}

		this.bringToFront();
	},

	onRemove: function (map) {
		if (map._fadeAnimated) {
			L.DomUtil.setOpacity(this._container, 0);
			this._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);
		} else {
			L.DomUtil.remove(this._container);
		}
	},

	// @namespace Popup
	// @method getLatLng: LatLng
	// Returns the geographical point of popup.
	getLatLng: function () {
		return this._latlng;
	},

	// @method setLatLng(latlng: LatLng): this
	// Sets the geographical point where the popup will open.
	setLatLng: function (latlng) {
		this._latlng = L.latLng(latlng);
		if (this._map) {
			this._updatePosition();
			this._adjustPan();
		}
		return this;
	},

	// @method getContent: String|HTMLElement
	// Returns the content of the popup.
	getContent: function () {
		return this._content;
	},

	// @method setContent(htmlContent: String|HTMLElement|Function): this
	// Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.
	setContent: function (content) {
		this._content = content;
		this.update();
		return this;
	},

	// @method getElement: String|HTMLElement
	// Alias for [getContent()](#popup-getcontent)
	getElement: function () {
		return this._container;
	},

	// @method update: null
	// Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.
	update: function () {
		if (!this._map) { return; }

		this._container.style.visibility = 'hidden';

		this._updateContent();
		this._updateLayout();
		this._updatePosition();

		this._container.style.visibility = '';

		this._adjustPan();
	},

	getEvents: function () {
		var events = {
			zoom: this._updatePosition,
			viewreset: this._updatePosition
		};

		if (this._zoomAnimated) {
			events.zoomanim = this._animateZoom;
		}
		return events;
	},

	// @method isOpen: Boolean
	// Returns `true` when the popup is visible on the map.
	isOpen: function () {
		return !!this._map && this._map.hasLayer(this);
	},

	// @method bringToFront: this
	// Brings this popup in front of other popups (in the same map pane).
	bringToFront: function () {
		if (this._map) {
			L.DomUtil.toFront(this._container);
		}
		return this;
	},

	// @method bringToBack: this
	// Brings this popup to the back of other popups (in the same map pane).
	bringToBack: function () {
		if (this._map) {
			L.DomUtil.toBack(this._container);
		}
		return this;
	},

	_updateContent: function () {
		if (!this._content) { return; }

		var node = this._contentNode;
		var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;

		if (typeof content === 'string') {
			node.innerHTML = content;
		} else {
			while (node.hasChildNodes()) {
				node.removeChild(node.firstChild);
			}
			node.appendChild(content);
		}
		this.fire('contentupdate');
	},

	_updatePosition: function () {
		if (!this._map) { return; }

		var pos = this._map.latLngToLayerPoint(this._latlng),
		    offset = L.point(this.options.offset),
		    anchor = this._getAnchor();

		if (this._zoomAnimated) {
			L.DomUtil.setPosition(this._container, pos.add(anchor));
		} else {
			offset = offset.add(pos).add(anchor);
		}

		var bottom = this._containerBottom = -offset.y,
		    left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;

		// bottom position the popup in case the height of the popup changes (images loading etc)
		this._container.style.bottom = bottom + 'px';
		this._container.style.left = left + 'px';
	},

	_getAnchor: function () {
		return [0, 0];
	}

});



/*
 * @class Popup
 * @inherits DivOverlay
 * @aka L.Popup
 * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to
 * open popups while making sure that only one popup is open at one time
 * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.
 *
 * @example
 *
 * If you want to just bind a popup to marker click and then open it, it's really easy:
 *
 * ```js
 * marker.bindPopup(popupContent).openPopup();
 * ```
 * Path overlays like polylines also have a `bindPopup` method.
 * Here's a more complicated way to open a popup on a map:
 *
 * ```js
 * var popup = L.popup()
 * 	.setLatLng(latlng)
 * 	.setContent('<p>Hello world!<br />This is a nice popup.</p>')
 * 	.openOn(map);
 * ```
 */


// @namespace Popup
L.Popup = L.DivOverlay.extend({

	// @section
	// @aka Popup options
	options: {
		// @option maxWidth: Number = 300
		// Max width of the popup, in pixels.
		maxWidth: 300,

		// @option minWidth: Number = 50
		// Min width of the popup, in pixels.
		minWidth: 50,

		// @option maxHeight: Number = null
		// If set, creates a scrollable container of the given height
		// inside a popup if its content exceeds it.
		maxHeight: null,

		// @option autoPan: Boolean = true
		// Set it to `false` if you don't want the map to do panning animation
		// to fit the opened popup.
		autoPan: true,

		// @option autoPanPaddingTopLeft: Point = null
		// The margin between the popup and the top left corner of the map
		// view after autopanning was performed.
		autoPanPaddingTopLeft: null,

		// @option autoPanPaddingBottomRight: Point = null
		// The margin between the popup and the bottom right corner of the map
		// view after autopanning was performed.
		autoPanPaddingBottomRight: null,

		// @option autoPanPadding: Point = Point(5, 5)
		// Equivalent of setting both top left and bottom right autopan padding to the same value.
		autoPanPadding: [5, 5],

		// @option keepInView: Boolean = false
		// Set it to `true` if you want to prevent users from panning the popup
		// off of the screen while it is open.
		keepInView: false,

		// @option closeButton: Boolean = true
		// Controls the presence of a close button in the popup.
		closeButton: true,

		// @option autoClose: Boolean = true
		// Set it to `false` if you want to override the default behavior of
		// the popup closing when user clicks the map (set globally by
		// the Map's [closePopupOnClick](#map-closepopuponclick) option).
		autoClose: true,

		// @option className: String = ''
		// A custom CSS class name to assign to the popup.
		className: ''
	},

	// @namespace Popup
	// @method openOn(map: Map): this
	// Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.
	openOn: function (map) {
		map.openPopup(this);
		return this;
	},

	onAdd: function (map) {
		L.DivOverlay.prototype.onAdd.call(this, map);

		// @namespace Map
		// @section Popup events
		// @event popupopen: PopupEvent
		// Fired when a popup is opened in the map
		map.fire('popupopen', {popup: this});

		if (this._source) {
			// @namespace Layer
			// @section Popup events
			// @event popupopen: PopupEvent
			// Fired when a popup bound to this layer is opened
			this._source.fire('popupopen', {popup: this}, true);
			// For non-path layers, we toggle the popup when clicking
			// again the layer, so prevent the map to reopen it.
			if (!(this._source instanceof L.Path)) {
				this._source.on('preclick', L.DomEvent.stopPropagation);
			}
		}
	},

	onRemove: function (map) {
		L.DivOverlay.prototype.onRemove.call(this, map);

		// @namespace Map
		// @section Popup events
		// @event popupclose: PopupEvent
		// Fired when a popup in the map is closed
		map.fire('popupclose', {popup: this});

		if (this._source) {
			// @namespace Layer
			// @section Popup events
			// @event popupclose: PopupEvent
			// Fired when a popup bound to this layer is closed
			this._source.fire('popupclose', {popup: this}, true);
			if (!(this._source instanceof L.Path)) {
				this._source.off('preclick', L.DomEvent.stopPropagation);
			}
		}
	},

	getEvents: function () {
		var events = L.DivOverlay.prototype.getEvents.call(this);

		if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
			events.preclick = this._close;
		}

		if (this.options.keepInView) {
			events.moveend = this._adjustPan;
		}

		return events;
	},

	_close: function () {
		if (this._map) {
			this._map.closePopup(this);
		}
	},

	_initLayout: function () {
		var prefix = 'leaflet-popup',
		    container = this._container = L.DomUtil.create('div',
			prefix + ' ' + (this.options.className || '') +
			' leaflet-zoom-animated');

		if (this.options.closeButton) {
			var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);
			closeButton.href = '#close';
			closeButton.innerHTML = '&#215;';

			L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
		}

		var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);
		this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);

		L.DomEvent
			.disableClickPropagation(wrapper)
			.disableScrollPropagation(this._contentNode)
			.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);

		this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
		this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
	},

	_updateLayout: function () {
		var container = this._contentNode,
		    style = container.style;

		style.width = '';
		style.whiteSpace = 'nowrap';

		var width = container.offsetWidth;
		width = Math.min(width, this.options.maxWidth);
		width = Math.max(width, this.options.minWidth);

		style.width = (width + 1) + 'px';
		style.whiteSpace = '';

		style.height = '';

		var height = container.offsetHeight,
		    maxHeight = this.options.maxHeight,
		    scrolledClass = 'leaflet-popup-scrolled';

		if (maxHeight && height > maxHeight) {
			style.height = maxHeight + 'px';
			L.DomUtil.addClass(container, scrolledClass);
		} else {
			L.DomUtil.removeClass(container, scrolledClass);
		}

		this._containerWidth = this._container.offsetWidth;
	},

	_animateZoom: function (e) {
		var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),
		    anchor = this._getAnchor();
		L.DomUtil.setPosition(this._container, pos.add(anchor));
	},

	_adjustPan: function () {
		if (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }

		var map = this._map,
		    marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0,
		    containerHeight = this._container.offsetHeight + marginBottom,
		    containerWidth = this._containerWidth,
		    layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);

		layerPos._add(L.DomUtil.getPosition(this._container));

		var containerPos = map.layerPointToContainerPoint(layerPos),
		    padding = L.point(this.options.autoPanPadding),
		    paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
		    paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
		    size = map.getSize(),
		    dx = 0,
		    dy = 0;

		if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
			dx = containerPos.x + containerWidth - size.x + paddingBR.x;
		}
		if (containerPos.x - dx - paddingTL.x < 0) { // left
			dx = containerPos.x - paddingTL.x;
		}
		if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
			dy = containerPos.y + containerHeight - size.y + paddingBR.y;
		}
		if (containerPos.y - dy - paddingTL.y < 0) { // top
			dy = containerPos.y - paddingTL.y;
		}

		// @namespace Map
		// @section Popup events
		// @event autopanstart: Event
		// Fired when the map starts autopanning when opening a popup.
		if (dx || dy) {
			map
			    .fire('autopanstart')
			    .panBy([dx, dy]);
		}
	},

	_onCloseButtonClick: function (e) {
		this._close();
		L.DomEvent.stop(e);
	},

	_getAnchor: function () {
		// Where should we anchor the popup on the source layer?
		return L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);
	}

});

// @namespace Popup
// @factory L.popup(options?: Popup options, source?: Layer)
// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.
L.popup = function (options, source) {
	return new L.Popup(options, source);
};


/* @namespace Map
 * @section Interaction Options
 * @option closePopupOnClick: Boolean = true
 * Set it to `false` if you don't want popups to close when user clicks the map.
 */
L.Map.mergeOptions({
	closePopupOnClick: true
});


// @namespace Map
// @section Methods for Layers and Controls
L.Map.include({
	// @method openPopup(popup: Popup): this
	// Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).
	// @alternative
	// @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this
	// Creates a popup with the specified content and options and opens it in the given point on a map.
	openPopup: function (popup, latlng, options) {
		if (!(popup instanceof L.Popup)) {
			popup = new L.Popup(options).setContent(popup);
		}

		if (latlng) {
			popup.setLatLng(latlng);
		}

		if (this.hasLayer(popup)) {
			return this;
		}

		if (this._popup && this._popup.options.autoClose) {
			this.closePopup();
		}

		this._popup = popup;
		return this.addLayer(popup);
	},

	// @method closePopup(popup?: Popup): this
	// Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).
	closePopup: function (popup) {
		if (!popup || popup === this._popup) {
			popup = this._popup;
			this._popup = null;
		}
		if (popup) {
			this.removeLayer(popup);
		}
		return this;
	}
});

/*
 * @namespace Layer
 * @section Popup methods example
 *
 * All layers share a set of methods convenient for binding popups to it.
 *
 * ```js
 * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);
 * layer.openPopup();
 * layer.closePopup();
 * ```
 *
 * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.
 */

// @section Popup methods
L.Layer.include({

	// @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this
	// Binds a popup to the layer with the passed `content` and sets up the
	// neccessary event listeners. If a `Function` is passed it will receive
	// the layer as the first argument and should return a `String` or `HTMLElement`.
	bindPopup: function (content, options) {

		if (content instanceof L.Popup) {
			L.setOptions(content, options);
			this._popup = content;
			content._source = this;
		} else {
			if (!this._popup || options) {
				this._popup = new L.Popup(options, this);
			}
			this._popup.setContent(content);
		}

		if (!this._popupHandlersAdded) {
			this.on({
				click: this._openPopup,
				remove: this.closePopup,
				move: this._movePopup
			});
			this._popupHandlersAdded = true;
		}

		return this;
	},

	// @method unbindPopup(): this
	// Removes the popup previously bound with `bindPopup`.
	unbindPopup: function () {
		if (this._popup) {
			this.off({
				click: this._openPopup,
				remove: this.closePopup,
				move: this._movePopup
			});
			this._popupHandlersAdded = false;
			this._popup = null;
		}
		return this;
	},

	// @method openPopup(latlng?: LatLng): this
	// Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed.
	openPopup: function (layer, latlng) {
		if (!(layer instanceof L.Layer)) {
			latlng = layer;
			layer = this;
		}

		if (layer instanceof L.FeatureGroup) {
			for (var id in this._layers) {
				layer = this._layers[id];
				break;
			}
		}

		if (!latlng) {
			latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
		}

		if (this._popup && this._map) {
			// set popup source to this layer
			this._popup._source = layer;

			// update the popup (content, layout, ect...)
			this._popup.update();

			// open the popup on the map
			this._map.openPopup(this._popup, latlng);
		}

		return this;
	},

	// @method closePopup(): this
	// Closes the popup bound to this layer if it is open.
	closePopup: function () {
		if (this._popup) {
			this._popup._close();
		}
		return this;
	},

	// @method togglePopup(): this
	// Opens or closes the popup bound to this layer depending on its current state.
	togglePopup: function (target) {
		if (this._popup) {
			if (this._popup._map) {
				this.closePopup();
			} else {
				this.openPopup(target);
			}
		}
		return this;
	},

	// @method isPopupOpen(): boolean
	// Returns `true` if the popup bound to this layer is currently open.
	isPopupOpen: function () {
		return (this._popup ? this._popup.isOpen() : false);
	},

	// @method setPopupContent(content: String|HTMLElement|Popup): this
	// Sets the content of the popup bound to this layer.
	setPopupContent: function (content) {
		if (this._popup) {
			this._popup.setContent(content);
		}
		return this;
	},

	// @method getPopup(): Popup
	// Returns the popup bound to this layer.
	getPopup: function () {
		return this._popup;
	},

	_openPopup: function (e) {
		var layer = e.layer || e.target;

		if (!this._popup) {
			return;
		}

		if (!this._map) {
			return;
		}

		// prevent map click
		L.DomEvent.stop(e);

		// if this inherits from Path its a vector and we can just
		// open the popup at the new location
		if (layer instanceof L.Path) {
			this.openPopup(e.layer || e.target, e.latlng);
			return;
		}

		// otherwise treat it like a marker and figure out
		// if we should toggle it open/closed
		if (this._map.hasLayer(this._popup) && this._popup._source === layer) {
			this.closePopup();
		} else {
			this.openPopup(layer, e.latlng);
		}
	},

	_movePopup: function (e) {
		this._popup.setLatLng(e.latlng);
	}
});



/*
 * @class Tooltip
 * @inherits DivOverlay
 * @aka L.Tooltip
 * Used to display small texts on top of map layers.
 *
 * @example
 *
 * ```js
 * marker.bindTooltip("my tooltip text").openTooltip();
 * ```
 * Note about tooltip offset. Leaflet takes two options in consideration
 * for computing tooltip offseting:
 * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.
 *   Add a positive x offset to move the tooltip to the right, and a positive y offset to
 *   move it to the bottom. Negatives will move to the left and top.
 * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You
 *   should adapt this value if you use a custom icon.
 */


// @namespace Tooltip
L.Tooltip = L.DivOverlay.extend({

	// @section
	// @aka Tooltip options
	options: {
		// @option pane: String = 'tooltipPane'
		// `Map pane` where the tooltip will be added.
		pane: 'tooltipPane',

		// @option offset: Point = Point(0, 0)
		// Optional offset of the tooltip position.
		offset: [0, 0],

		// @option direction: String = 'auto'
		// Direction where to open the tooltip. Possible values are: `right`, `left`,
		// `top`, `bottom`, `center`, `auto`.
		// `auto` will dynamicaly switch between `right` and `left` according to the tooltip
		// position on the map.
		direction: 'auto',

		// @option permanent: Boolean = false
		// Whether to open the tooltip permanently or only on mouseover.
		permanent: false,

		// @option sticky: Boolean = false
		// If true, the tooltip will follow the mouse instead of being fixed at the feature center.
		sticky: false,

		// @option interactive: Boolean = false
		// If true, the tooltip will listen to the feature events.
		interactive: false,

		// @option opacity: Number = 0.9
		// Tooltip container opacity.
		opacity: 0.9
	},

	onAdd: function (map) {
		L.DivOverlay.prototype.onAdd.call(this, map);
		this.setOpacity(this.options.opacity);

		// @namespace Map
		// @section Tooltip events
		// @event tooltipopen: TooltipEvent
		// Fired when a tooltip is opened in the map.
		map.fire('tooltipopen', {tooltip: this});

		if (this._source) {
			// @namespace Layer
			// @section Tooltip events
			// @event tooltipopen: TooltipEvent
			// Fired when a tooltip bound to this layer is opened.
			this._source.fire('tooltipopen', {tooltip: this}, true);
		}
	},

	onRemove: function (map) {
		L.DivOverlay.prototype.onRemove.call(this, map);

		// @namespace Map
		// @section Tooltip events
		// @event tooltipclose: TooltipEvent
		// Fired when a tooltip in the map is closed.
		map.fire('tooltipclose', {tooltip: this});

		if (this._source) {
			// @namespace Layer
			// @section Tooltip events
			// @event tooltipclose: TooltipEvent
			// Fired when a tooltip bound to this layer is closed.
			this._source.fire('tooltipclose', {tooltip: this}, true);
		}
	},

	getEvents: function () {
		var events = L.DivOverlay.prototype.getEvents.call(this);

		if (L.Browser.touch && !this.options.permanent) {
			events.preclick = this._close;
		}

		return events;
	},

	_close: function () {
		if (this._map) {
			this._map.closeTooltip(this);
		}
	},

	_initLayout: function () {
		var prefix = 'leaflet-tooltip',
		    className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');

		this._contentNode = this._container = L.DomUtil.create('div', className);
	},

	_updateLayout: function () {},

	_adjustPan: function () {},

	_setPosition: function (pos) {
		var map = this._map,
		    container = this._container,
		    centerPoint = map.latLngToContainerPoint(map.getCenter()),
		    tooltipPoint = map.layerPointToContainerPoint(pos),
		    direction = this.options.direction,
		    tooltipWidth = container.offsetWidth,
		    tooltipHeight = container.offsetHeight,
		    offset = L.point(this.options.offset),
		    anchor = this._getAnchor();

		if (direction === 'top') {
			pos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));
		} else if (direction === 'bottom') {
			pos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true));
		} else if (direction === 'center') {
			pos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));
		} else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {
			direction = 'right';
			pos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));
		} else {
			direction = 'left';
			pos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));
		}

		L.DomUtil.removeClass(container, 'leaflet-tooltip-right');
		L.DomUtil.removeClass(container, 'leaflet-tooltip-left');
		L.DomUtil.removeClass(container, 'leaflet-tooltip-top');
		L.DomUtil.removeClass(container, 'leaflet-tooltip-bottom');
		L.DomUtil.addClass(container, 'leaflet-tooltip-' + direction);
		L.DomUtil.setPosition(container, pos);
	},

	_updatePosition: function () {
		var pos = this._map.latLngToLayerPoint(this._latlng);
		this._setPosition(pos);
	},

	setOpacity: function (opacity) {
		this.options.opacity = opacity;

		if (this._container) {
			L.DomUtil.setOpacity(this._container, opacity);
		}
	},

	_animateZoom: function (e) {
		var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
		this._setPosition(pos);
	},

	_getAnchor: function () {
		// Where should we anchor the tooltip on the source layer?
		return L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);
	}

});

// @namespace Tooltip
// @factory L.tooltip(options?: Tooltip options, source?: Layer)
// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.
L.tooltip = function (options, source) {
	return new L.Tooltip(options, source);
};

// @namespace Map
// @section Methods for Layers and Controls
L.Map.include({

	// @method openTooltip(tooltip: Tooltip): this
	// Opens the specified tooltip.
	// @alternative
	// @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this
	// Creates a tooltip with the specified content and options and open it.
	openTooltip: function (tooltip, latlng, options) {
		if (!(tooltip instanceof L.Tooltip)) {
			tooltip = new L.Tooltip(options).setContent(tooltip);
		}

		if (latlng) {
			tooltip.setLatLng(latlng);
		}

		if (this.hasLayer(tooltip)) {
			return this;
		}

		return this.addLayer(tooltip);
	},

	// @method closeTooltip(tooltip?: Tooltip): this
	// Closes the tooltip given as parameter.
	closeTooltip: function (tooltip) {
		if (tooltip) {
			this.removeLayer(tooltip);
		}
		return this;
	}

});

/*
 * @namespace Layer
 * @section Tooltip methods example
 *
 * All layers share a set of methods convenient for binding tooltips to it.
 *
 * ```js
 * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);
 * layer.openTooltip();
 * layer.closeTooltip();
 * ```
 */

// @section Tooltip methods
L.Layer.include({

	// @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this
	// Binds a tooltip to the layer with the passed `content` and sets up the
	// neccessary event listeners. If a `Function` is passed it will receive
	// the layer as the first argument and should return a `String` or `HTMLElement`.
	bindTooltip: function (content, options) {

		if (content instanceof L.Tooltip) {
			L.setOptions(content, options);
			this._tooltip = content;
			content._source = this;
		} else {
			if (!this._tooltip || options) {
				this._tooltip = L.tooltip(options, this);
			}
			this._tooltip.setContent(content);

		}

		this._initTooltipInteractions();

		if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {
			this.openTooltip();
		}

		return this;
	},

	// @method unbindTooltip(): this
	// Removes the tooltip previously bound with `bindTooltip`.
	unbindTooltip: function () {
		if (this._tooltip) {
			this._initTooltipInteractions(true);
			this.closeTooltip();
			this._tooltip = null;
		}
		return this;
	},

	_initTooltipInteractions: function (remove) {
		if (!remove && this._tooltipHandlersAdded) { return; }
		var onOff = remove ? 'off' : 'on',
		    events = {
			remove: this.closeTooltip,
			move: this._moveTooltip
		    };
		if (!this._tooltip.options.permanent) {
			events.mouseover = this._openTooltip;
			events.mouseout = this.closeTooltip;
			if (this._tooltip.options.sticky) {
				events.mousemove = this._moveTooltip;
			}
			if (L.Browser.touch) {
				events.click = this._openTooltip;
			}
		} else {
			events.add = this._openTooltip;
		}
		this[onOff](events);
		this._tooltipHandlersAdded = !remove;
	},

	// @method openTooltip(latlng?: LatLng): this
	// Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed.
	openTooltip: function (layer, latlng) {
		if (!(layer instanceof L.Layer)) {
			latlng = layer;
			layer = this;
		}

		if (layer instanceof L.FeatureGroup) {
			for (var id in this._layers) {
				layer = this._layers[id];
				break;
			}
		}

		if (!latlng) {
			latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
		}

		if (this._tooltip && this._map) {

			// set tooltip source to this layer
			this._tooltip._source = layer;

			// update the tooltip (content, layout, ect...)
			this._tooltip.update();

			// open the tooltip on the map
			this._map.openTooltip(this._tooltip, latlng);

			// Tooltip container may not be defined if not permanent and never
			// opened.
			if (this._tooltip.options.interactive && this._tooltip._container) {
				L.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable');
				this.addInteractiveTarget(this._tooltip._container);
			}
		}

		return this;
	},

	// @method closeTooltip(): this
	// Closes the tooltip bound to this layer if it is open.
	closeTooltip: function () {
		if (this._tooltip) {
			this._tooltip._close();
			if (this._tooltip.options.interactive && this._tooltip._container) {
				L.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable');
				this.removeInteractiveTarget(this._tooltip._container);
			}
		}
		return this;
	},

	// @method toggleTooltip(): this
	// Opens or closes the tooltip bound to this layer depending on its current state.
	toggleTooltip: function (target) {
		if (this._tooltip) {
			if (this._tooltip._map) {
				this.closeTooltip();
			} else {
				this.openTooltip(target);
			}
		}
		return this;
	},

	// @method isTooltipOpen(): boolean
	// Returns `true` if the tooltip bound to this layer is currently open.
	isTooltipOpen: function () {
		return this._tooltip.isOpen();
	},

	// @method setTooltipContent(content: String|HTMLElement|Tooltip): this
	// Sets the content of the tooltip bound to this layer.
	setTooltipContent: function (content) {
		if (this._tooltip) {
			this._tooltip.setContent(content);
		}
		return this;
	},

	// @method getTooltip(): Tooltip
	// Returns the tooltip bound to this layer.
	getTooltip: function () {
		return this._tooltip;
	},

	_openTooltip: function (e) {
		var layer = e.layer || e.target;

		if (!this._tooltip || !this._map) {
			return;
		}
		this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);
	},

	_moveTooltip: function (e) {
		var latlng = e.latlng, containerPoint, layerPoint;
		if (this._tooltip.options.sticky && e.originalEvent) {
			containerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);
			layerPoint = this._map.containerPointToLayerPoint(containerPoint);
			latlng = this._map.layerPointToLatLng(layerPoint);
		}
		this._tooltip.setLatLng(latlng);
	}
});



/*
 * @class LayerGroup
 * @aka L.LayerGroup
 * @inherits Layer
 *
 * Used to group several layers and handle them as one. If you add it to the map,
 * any layers added or removed from the group will be added/removed on the map as
 * well. Extends `Layer`.
 *
 * @example
 *
 * ```js
 * L.layerGroup([marker1, marker2])
 * 	.addLayer(polyline)
 * 	.addTo(map);
 * ```
 */

L.LayerGroup = L.Layer.extend({

	initialize: function (layers) {
		this._layers = {};

		var i, len;

		if (layers) {
			for (i = 0, len = layers.length; i < len; i++) {
				this.addLayer(layers[i]);
			}
		}
	},

	// @method addLayer(layer: Layer): this
	// Adds the given layer to the group.
	addLayer: function (layer) {
		var id = this.getLayerId(layer);

		this._layers[id] = layer;

		if (this._map) {
			this._map.addLayer(layer);
		}

		return this;
	},

	// @method removeLayer(layer: Layer): this
	// Removes the given layer from the group.
	// @alternative
	// @method removeLayer(id: Number): this
	// Removes the layer with the given internal ID from the group.
	removeLayer: function (layer) {
		var id = layer in this._layers ? layer : this.getLayerId(layer);

		if (this._map && this._layers[id]) {
			this._map.removeLayer(this._layers[id]);
		}

		delete this._layers[id];

		return this;
	},

	// @method hasLayer(layer: Layer): Boolean
	// Returns `true` if the given layer is currently added to the group.
	hasLayer: function (layer) {
		return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);
	},

	// @method clearLayers(): this
	// Removes all the layers from the group.
	clearLayers: function () {
		for (var i in this._layers) {
			this.removeLayer(this._layers[i]);
		}
		return this;
	},

	// @method invoke(methodName: String, …): this
	// Calls `methodName` on every layer contained in this group, passing any
	// additional parameters. Has no effect if the layers contained do not
	// implement `methodName`.
	invoke: function (methodName) {
		var args = Array.prototype.slice.call(arguments, 1),
		    i, layer;

		for (i in this._layers) {
			layer = this._layers[i];

			if (layer[methodName]) {
				layer[methodName].apply(layer, args);
			}
		}

		return this;
	},

	onAdd: function (map) {
		for (var i in this._layers) {
			map.addLayer(this._layers[i]);
		}
	},

	onRemove: function (map) {
		for (var i in this._layers) {
			map.removeLayer(this._layers[i]);
		}
	},

	// @method eachLayer(fn: Function, context?: Object): this
	// Iterates over the layers of the group, optionally specifying context of the iterator function.
	// ```js
	// group.eachLayer(function (layer) {
	// 	layer.bindPopup('Hello');
	// });
	// ```
	eachLayer: function (method, context) {
		for (var i in this._layers) {
			method.call(context, this._layers[i]);
		}
		return this;
	},

	// @method getLayer(id: Number): Layer
	// Returns the layer with the given internal ID.
	getLayer: function (id) {
		return this._layers[id];
	},

	// @method getLayers(): Layer[]
	// Returns an array of all the layers added to the group.
	getLayers: function () {
		var layers = [];

		for (var i in this._layers) {
			layers.push(this._layers[i]);
		}
		return layers;
	},

	// @method setZIndex(zIndex: Number): this
	// Calls `setZIndex` on every layer contained in this group, passing the z-index.
	setZIndex: function (zIndex) {
		return this.invoke('setZIndex', zIndex);
	},

	// @method getLayerId(layer: Layer): Number
	// Returns the internal ID for a layer
	getLayerId: function (layer) {
		return L.stamp(layer);
	}
});


// @factory L.layerGroup(layers: Layer[])
// Create a layer group, optionally given an initial set of layers.
L.layerGroup = function (layers) {
	return new L.LayerGroup(layers);
};



/*
 * @class FeatureGroup
 * @aka L.FeatureGroup
 * @inherits LayerGroup
 *
 * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:
 *  * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))
 *  * Events are propagated to the `FeatureGroup`, so if the group has an event
 * handler, it will handle events from any of the layers. This includes mouse events
 * and custom events.
 *  * Has `layeradd` and `layerremove` events
 *
 * @example
 *
 * ```js
 * L.featureGroup([marker1, marker2, polyline])
 * 	.bindPopup('Hello world!')
 * 	.on('click', function() { alert('Clicked on a member of the group!'); })
 * 	.addTo(map);
 * ```
 */

L.FeatureGroup = L.LayerGroup.extend({

	addLayer: function (layer) {
		if (this.hasLayer(layer)) {
			return this;
		}

		layer.addEventParent(this);

		L.LayerGroup.prototype.addLayer.call(this, layer);

		// @event layeradd: LayerEvent
		// Fired when a layer is added to this `FeatureGroup`
		return this.fire('layeradd', {layer: layer});
	},

	removeLayer: function (layer) {
		if (!this.hasLayer(layer)) {
			return this;
		}
		if (layer in this._layers) {
			layer = this._layers[layer];
		}

		layer.removeEventParent(this);

		L.LayerGroup.prototype.removeLayer.call(this, layer);

		// @event layerremove: LayerEvent
		// Fired when a layer is removed from this `FeatureGroup`
		return this.fire('layerremove', {layer: layer});
	},

	// @method setStyle(style: Path options): this
	// Sets the given path options to each layer of the group that has a `setStyle` method.
	setStyle: function (style) {
		return this.invoke('setStyle', style);
	},

	// @method bringToFront(): this
	// Brings the layer group to the top of all other layers
	bringToFront: function () {
		return this.invoke('bringToFront');
	},

	// @method bringToBack(): this
	// Brings the layer group to the top of all other layers
	bringToBack: function () {
		return this.invoke('bringToBack');
	},

	// @method getBounds(): LatLngBounds
	// Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).
	getBounds: function () {
		var bounds = new L.LatLngBounds();

		for (var id in this._layers) {
			var layer = this._layers[id];
			bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
		}
		return bounds;
	}
});

// @factory L.featureGroup(layers: Layer[])
// Create a feature group, optionally given an initial set of layers.
L.featureGroup = function (layers) {
	return new L.FeatureGroup(layers);
};



/*
 * @class Renderer
 * @inherits Layer
 * @aka L.Renderer
 *
 * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the
 * DOM container of the renderer, its bounds, and its zoom animation.
 *
 * A `Renderer` works as an implicit layer group for all `Path`s - the renderer
 * itself can be added or removed to the map. All paths use a renderer, which can
 * be implicit (the map will decide the type of renderer and use it automatically)
 * or explicit (using the [`renderer`](#path-renderer) option of the path).
 *
 * Do not use this class directly, use `SVG` and `Canvas` instead.
 *
 * @event update: Event
 * Fired when the renderer updates its bounds, center and zoom, for example when
 * its map has moved
 */

L.Renderer = L.Layer.extend({

	// @section
	// @aka Renderer options
	options: {
		// @option padding: Number = 0.1
		// How much to extend the clip area around the map view (relative to its size)
		// e.g. 0.1 would be 10% of map view in each direction
		padding: 0.1
	},

	initialize: function (options) {
		L.setOptions(this, options);
		L.stamp(this);
		this._layers = this._layers || {};
	},

	onAdd: function () {
		if (!this._container) {
			this._initContainer(); // defined by renderer implementations

			if (this._zoomAnimated) {
				L.DomUtil.addClass(this._container, 'leaflet-zoom-animated');
			}
		}

		this.getPane().appendChild(this._container);
		this._update();
		this.on('update', this._updatePaths, this);
	},

	onRemove: function () {
		L.DomUtil.remove(this._container);
		this.off('update', this._updatePaths, this);
	},

	getEvents: function () {
		var events = {
			viewreset: this._reset,
			zoom: this._onZoom,
			moveend: this._update,
			zoomend: this._onZoomEnd
		};
		if (this._zoomAnimated) {
			events.zoomanim = this._onAnimZoom;
		}
		return events;
	},

	_onAnimZoom: function (ev) {
		this._updateTransform(ev.center, ev.zoom);
	},

	_onZoom: function () {
		this._updateTransform(this._map.getCenter(), this._map.getZoom());
	},

	_updateTransform: function (center, zoom) {
		var scale = this._map.getZoomScale(zoom, this._zoom),
		    position = L.DomUtil.getPosition(this._container),
		    viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),
		    currentCenterPoint = this._map.project(this._center, zoom),
		    destCenterPoint = this._map.project(center, zoom),
		    centerOffset = destCenterPoint.subtract(currentCenterPoint),

		    topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);

		if (L.Browser.any3d) {
			L.DomUtil.setTransform(this._container, topLeftOffset, scale);
		} else {
			L.DomUtil.setPosition(this._container, topLeftOffset);
		}
	},

	_reset: function () {
		this._update();
		this._updateTransform(this._center, this._zoom);

		for (var id in this._layers) {
			this._layers[id]._reset();
		}
	},

	_onZoomEnd: function () {
		for (var id in this._layers) {
			this._layers[id]._project();
		}
	},

	_updatePaths: function () {
		for (var id in this._layers) {
			this._layers[id]._update();
		}
	},

	_update: function () {
		// Update pixel bounds of renderer container (for positioning/sizing/clipping later)
		// Subclasses are responsible of firing the 'update' event.
		var p = this.options.padding,
		    size = this._map.getSize(),
		    min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();

		this._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());

		this._center = this._map.getCenter();
		this._zoom = this._map.getZoom();
	}
});


L.Map.include({
	// @namespace Map; @method getRenderer(layer: Path): Renderer
	// Returns the instance of `Renderer` that should be used to render the given
	// `Path`. It will ensure that the `renderer` options of the map and paths
	// are respected, and that the renderers do exist on the map.
	getRenderer: function (layer) {
		// @namespace Path; @option renderer: Renderer
		// Use this specific instance of `Renderer` for this path. Takes
		// precedence over the map's [default renderer](#map-renderer).
		var renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;

		if (!renderer) {
			// @namespace Map; @option preferCanvas: Boolean = false
			// Whether `Path`s should be rendered on a `Canvas` renderer.
			// By default, all `Path`s are rendered in a `SVG` renderer.
			renderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg();
		}

		if (!this.hasLayer(renderer)) {
			this.addLayer(renderer);
		}
		return renderer;
	},

	_getPaneRenderer: function (name) {
		if (name === 'overlayPane' || name === undefined) {
			return false;
		}

		var renderer = this._paneRenderers[name];
		if (renderer === undefined) {
			renderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name}));
			this._paneRenderers[name] = renderer;
		}
		return renderer;
	}
});



/*
 * @class Path
 * @aka L.Path
 * @inherits Interactive layer
 *
 * An abstract class that contains options and constants shared between vector
 * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.
 */

L.Path = L.Layer.extend({

	// @section
	// @aka Path options
	options: {
		// @option stroke: Boolean = true
		// Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.
		stroke: true,

		// @option color: String = '#3388ff'
		// Stroke color
		color: '#3388ff',

		// @option weight: Number = 3
		// Stroke width in pixels
		weight: 3,

		// @option opacity: Number = 1.0
		// Stroke opacity
		opacity: 1,

		// @option lineCap: String= 'round'
		// A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.
		lineCap: 'round',

		// @option lineJoin: String = 'round'
		// A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.
		lineJoin: 'round',

		// @option dashArray: String = null
		// A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
		dashArray: null,

		// @option dashOffset: String = null
		// A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
		dashOffset: null,

		// @option fill: Boolean = depends
		// Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.
		fill: false,

		// @option fillColor: String = *
		// Fill color. Defaults to the value of the [`color`](#path-color) option
		fillColor: null,

		// @option fillOpacity: Number = 0.2
		// Fill opacity.
		fillOpacity: 0.2,

		// @option fillRule: String = 'evenodd'
		// A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.
		fillRule: 'evenodd',

		// className: '',

		// Option inherited from "Interactive layer" abstract class
		interactive: true
	},

	beforeAdd: function (map) {
		// Renderer is set here because we need to call renderer.getEvents
		// before this.getEvents.
		this._renderer = map.getRenderer(this);
	},

	onAdd: function () {
		this._renderer._initPath(this);
		this._reset();
		this._renderer._addPath(this);
	},

	onRemove: function () {
		this._renderer._removePath(this);
	},

	// @method redraw(): this
	// Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.
	redraw: function () {
		if (this._map) {
			this._renderer._updatePath(this);
		}
		return this;
	},

	// @method setStyle(style: Path options): this
	// Changes the appearance of a Path based on the options in the `Path options` object.
	setStyle: function (style) {
		L.setOptions(this, style);
		if (this._renderer) {
			this._renderer._updateStyle(this);
		}
		return this;
	},

	// @method bringToFront(): this
	// Brings the layer to the top of all path layers.
	bringToFront: function () {
		if (this._renderer) {
			this._renderer._bringToFront(this);
		}
		return this;
	},

	// @method bringToBack(): this
	// Brings the layer to the bottom of all path layers.
	bringToBack: function () {
		if (this._renderer) {
			this._renderer._bringToBack(this);
		}
		return this;
	},

	getElement: function () {
		return this._path;
	},

	_reset: function () {
		// defined in children classes
		this._project();
		this._update();
	},

	_clickTolerance: function () {
		// used when doing hit detection for Canvas layers
		return (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);
	}
});



/*
 * @namespace LineUtil
 *
 * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast.
 */

L.LineUtil = {

	// Simplify polyline with vertex reduction and Douglas-Peucker simplification.
	// Improves rendering performance dramatically by lessening the number of points to draw.

	// @function simplify(points: Point[], tolerance: Number): Point[]
	// Dramatically reduces the number of points in a polyline while retaining
	// its shape and returns a new array of simplified points, using the
	// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).
	// Used for a huge performance boost when processing/displaying Leaflet polylines for
	// each zoom level and also reducing visual noise. tolerance affects the amount of
	// simplification (lesser value means higher quality but slower and with more points).
	// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).
	simplify: function (points, tolerance) {
		if (!tolerance || !points.length) {
			return points.slice();
		}

		var sqTolerance = tolerance * tolerance;

		// stage 1: vertex reduction
		points = this._reducePoints(points, sqTolerance);

		// stage 2: Douglas-Peucker simplification
		points = this._simplifyDP(points, sqTolerance);

		return points;
	},

	// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number
	// Returns the distance between point `p` and segment `p1` to `p2`.
	pointToSegmentDistance:  function (p, p1, p2) {
		return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
	},

	// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number
	// Returns the closest point from a point `p` on a segment `p1` to `p2`.
	closestPointOnSegment: function (p, p1, p2) {
		return this._sqClosestPointOnSegment(p, p1, p2);
	},

	// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
	_simplifyDP: function (points, sqTolerance) {

		var len = points.length,
		    ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
		    markers = new ArrayConstructor(len);

		markers[0] = markers[len - 1] = 1;

		this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);

		var i,
		    newPoints = [];

		for (i = 0; i < len; i++) {
			if (markers[i]) {
				newPoints.push(points[i]);
			}
		}

		return newPoints;
	},

	_simplifyDPStep: function (points, markers, sqTolerance, first, last) {

		var maxSqDist = 0,
		    index, i, sqDist;

		for (i = first + 1; i <= last - 1; i++) {
			sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);

			if (sqDist > maxSqDist) {
				index = i;
				maxSqDist = sqDist;
			}
		}

		if (maxSqDist > sqTolerance) {
			markers[index] = 1;

			this._simplifyDPStep(points, markers, sqTolerance, first, index);
			this._simplifyDPStep(points, markers, sqTolerance, index, last);
		}
	},

	// reduce points that are too close to each other to a single point
	_reducePoints: function (points, sqTolerance) {
		var reducedPoints = [points[0]];

		for (var i = 1, prev = 0, len = points.length; i < len; i++) {
			if (this._sqDist(points[i], points[prev]) > sqTolerance) {
				reducedPoints.push(points[i]);
				prev = i;
			}
		}
		if (prev < len - 1) {
			reducedPoints.push(points[len - 1]);
		}
		return reducedPoints;
	},


	// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean
	// Clips the segment a to b by rectangular bounds with the
	// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)
	// (modifying the segment points directly!). Used by Leaflet to only show polyline
	// points that are on the screen or near, increasing performance.
	clipSegment: function (a, b, bounds, useLastCode, round) {
		var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
		    codeB = this._getBitCode(b, bounds),

		    codeOut, p, newCode;

		// save 2nd code to avoid calculating it on the next segment
		this._lastCode = codeB;

		while (true) {
			// if a,b is inside the clip window (trivial accept)
			if (!(codeA | codeB)) {
				return [a, b];
			}

			// if a,b is outside the clip window (trivial reject)
			if (codeA & codeB) {
				return false;
			}

			// other cases
			codeOut = codeA || codeB;
			p = this._getEdgeIntersection(a, b, codeOut, bounds, round);
			newCode = this._getBitCode(p, bounds);

			if (codeOut === codeA) {
				a = p;
				codeA = newCode;
			} else {
				b = p;
				codeB = newCode;
			}
		}
	},

	_getEdgeIntersection: function (a, b, code, bounds, round) {
		var dx = b.x - a.x,
		    dy = b.y - a.y,
		    min = bounds.min,
		    max = bounds.max,
		    x, y;

		if (code & 8) { // top
			x = a.x + dx * (max.y - a.y) / dy;
			y = max.y;

		} else if (code & 4) { // bottom
			x = a.x + dx * (min.y - a.y) / dy;
			y = min.y;

		} else if (code & 2) { // right
			x = max.x;
			y = a.y + dy * (max.x - a.x) / dx;

		} else if (code & 1) { // left
			x = min.x;
			y = a.y + dy * (min.x - a.x) / dx;
		}

		return new L.Point(x, y, round);
	},

	_getBitCode: function (p, bounds) {
		var code = 0;

		if (p.x < bounds.min.x) { // left
			code |= 1;
		} else if (p.x > bounds.max.x) { // right
			code |= 2;
		}

		if (p.y < bounds.min.y) { // bottom
			code |= 4;
		} else if (p.y > bounds.max.y) { // top
			code |= 8;
		}

		return code;
	},

	// square distance (to avoid unnecessary Math.sqrt calls)
	_sqDist: function (p1, p2) {
		var dx = p2.x - p1.x,
		    dy = p2.y - p1.y;
		return dx * dx + dy * dy;
	},

	// return closest point on segment or distance to that point
	_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
		var x = p1.x,
		    y = p1.y,
		    dx = p2.x - x,
		    dy = p2.y - y,
		    dot = dx * dx + dy * dy,
		    t;

		if (dot > 0) {
			t = ((p.x - x) * dx + (p.y - y) * dy) / dot;

			if (t > 1) {
				x = p2.x;
				y = p2.y;
			} else if (t > 0) {
				x += dx * t;
				y += dy * t;
			}
		}

		dx = p.x - x;
		dy = p.y - y;

		return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
	}
};



/*
 * @class Polyline
 * @aka L.Polyline
 * @inherits Path
 *
 * A class for drawing polyline overlays on a map. Extends `Path`.
 *
 * @example
 *
 * ```js
 * // create a red polyline from an array of LatLng points
 * var latlngs = [
 * 	[45.51, -122.68],
 * 	[37.77, -122.43],
 * 	[34.04, -118.2]
 * ];
 *
 * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);
 *
 * // zoom the map to the polyline
 * map.fitBounds(polyline.getBounds());
 * ```
 *
 * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:
 *
 * ```js
 * // create a red polyline from an array of arrays of LatLng points
 * var latlngs = [
 * 	[[45.51, -122.68],
 * 	 [37.77, -122.43],
 * 	 [34.04, -118.2]],
 * 	[[40.78, -73.91],
 * 	 [41.83, -87.62],
 * 	 [32.76, -96.72]]
 * ];
 * ```
 */

L.Polyline = L.Path.extend({

	// @section
	// @aka Polyline options
	options: {
		// @option smoothFactor: Number = 1.0
		// How much to simplify the polyline on each zoom level. More means
		// better performance and smoother look, and less means more accurate representation.
		smoothFactor: 1.0,

		// @option noClip: Boolean = false
		// Disable polyline clipping.
		noClip: false
	},

	initialize: function (latlngs, options) {
		L.setOptions(this, options);
		this._setLatLngs(latlngs);
	},

	// @method getLatLngs(): LatLng[]
	// Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.
	getLatLngs: function () {
		return this._latlngs;
	},

	// @method setLatLngs(latlngs: LatLng[]): this
	// Replaces all the points in the polyline with the given array of geographical points.
	setLatLngs: function (latlngs) {
		this._setLatLngs(latlngs);
		return this.redraw();
	},

	// @method isEmpty(): Boolean
	// Returns `true` if the Polyline has no LatLngs.
	isEmpty: function () {
		return !this._latlngs.length;
	},

	closestLayerPoint: function (p) {
		var minDistance = Infinity,
		    minPoint = null,
		    closest = L.LineUtil._sqClosestPointOnSegment,
		    p1, p2;

		for (var j = 0, jLen = this._parts.length; j < jLen; j++) {
			var points = this._parts[j];

			for (var i = 1, len = points.length; i < len; i++) {
				p1 = points[i - 1];
				p2 = points[i];

				var sqDist = closest(p, p1, p2, true);

				if (sqDist < minDistance) {
					minDistance = sqDist;
					minPoint = closest(p, p1, p2);
				}
			}
		}
		if (minPoint) {
			minPoint.distance = Math.sqrt(minDistance);
		}
		return minPoint;
	},

	// @method getCenter(): LatLng
	// Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.
	getCenter: function () {
		// throws error when not yet added to map as this center calculation requires projected coordinates
		if (!this._map) {
			throw new Error('Must add layer to map before using getCenter()');
		}

		var i, halfDist, segDist, dist, p1, p2, ratio,
		    points = this._rings[0],
		    len = points.length;

		if (!len) { return null; }

		// polyline centroid algorithm; only uses the first ring if there are multiple

		for (i = 0, halfDist = 0; i < len - 1; i++) {
			halfDist += points[i].distanceTo(points[i + 1]) / 2;
		}

		// The line is so small in the current view that all points are on the same pixel.
		if (halfDist === 0) {
			return this._map.layerPointToLatLng(points[0]);
		}

		for (i = 0, dist = 0; i < len - 1; i++) {
			p1 = points[i];
			p2 = points[i + 1];
			segDist = p1.distanceTo(p2);
			dist += segDist;

			if (dist > halfDist) {
				ratio = (dist - halfDist) / segDist;
				return this._map.layerPointToLatLng([
					p2.x - ratio * (p2.x - p1.x),
					p2.y - ratio * (p2.y - p1.y)
				]);
			}
		}
	},

	// @method getBounds(): LatLngBounds
	// Returns the `LatLngBounds` of the path.
	getBounds: function () {
		return this._bounds;
	},

	// @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this
	// Adds a given point to the polyline. By default, adds to the first ring of
	// the polyline in case of a multi-polyline, but can be overridden by passing
	// a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).
	addLatLng: function (latlng, latlngs) {
		latlngs = latlngs || this._defaultShape();
		latlng = L.latLng(latlng);
		latlngs.push(latlng);
		this._bounds.extend(latlng);
		return this.redraw();
	},

	_setLatLngs: function (latlngs) {
		this._bounds = new L.LatLngBounds();
		this._latlngs = this._convertLatLngs(latlngs);
	},

	_defaultShape: function () {
		return L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];
	},

	// recursively convert latlngs input into actual LatLng instances; calculate bounds along the way
	_convertLatLngs: function (latlngs) {
		var result = [],
		    flat = L.Polyline._flat(latlngs);

		for (var i = 0, len = latlngs.length; i < len; i++) {
			if (flat) {
				result[i] = L.latLng(latlngs[i]);
				this._bounds.extend(result[i]);
			} else {
				result[i] = this._convertLatLngs(latlngs[i]);
			}
		}

		return result;
	},

	_project: function () {
		var pxBounds = new L.Bounds();
		this._rings = [];
		this._projectLatlngs(this._latlngs, this._rings, pxBounds);

		var w = this._clickTolerance(),
		    p = new L.Point(w, w);

		if (this._bounds.isValid() && pxBounds.isValid()) {
			pxBounds.min._subtract(p);
			pxBounds.max._add(p);
			this._pxBounds = pxBounds;
		}
	},

	// recursively turns latlngs into a set of rings with projected coordinates
	_projectLatlngs: function (latlngs, result, projectedBounds) {
		var flat = latlngs[0] instanceof L.LatLng,
		    len = latlngs.length,
		    i, ring;

		if (flat) {
			ring = [];
			for (i = 0; i < len; i++) {
				ring[i] = this._map.latLngToLayerPoint(latlngs[i]);
				projectedBounds.extend(ring[i]);
			}
			result.push(ring);
		} else {
			for (i = 0; i < len; i++) {
				this._projectLatlngs(latlngs[i], result, projectedBounds);
			}
		}
	},

	// clip polyline by renderer bounds so that we have less to render for performance
	_clipPoints: function () {
		var bounds = this._renderer._bounds;

		this._parts = [];
		if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
			return;
		}

		if (this.options.noClip) {
			this._parts = this._rings;
			return;
		}

		var parts = this._parts,
		    i, j, k, len, len2, segment, points;

		for (i = 0, k = 0, len = this._rings.length; i < len; i++) {
			points = this._rings[i];

			for (j = 0, len2 = points.length; j < len2 - 1; j++) {
				segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);

				if (!segment) { continue; }

				parts[k] = parts[k] || [];
				parts[k].push(segment[0]);

				// if segment goes out of screen, or it's the last one, it's the end of the line part
				if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {
					parts[k].push(segment[1]);
					k++;
				}
			}
		}
	},

	// simplify each clipped part of the polyline for performance
	_simplifyPoints: function () {
		var parts = this._parts,
		    tolerance = this.options.smoothFactor;

		for (var i = 0, len = parts.length; i < len; i++) {
			parts[i] = L.LineUtil.simplify(parts[i], tolerance);
		}
	},

	_update: function () {
		if (!this._map) { return; }

		this._clipPoints();
		this._simplifyPoints();
		this._updatePath();
	},

	_updatePath: function () {
		this._renderer._updatePoly(this);
	}
});

// @factory L.polyline(latlngs: LatLng[], options?: Polyline options)
// Instantiates a polyline object given an array of geographical points and
// optionally an options object. You can create a `Polyline` object with
// multiple separate lines (`MultiPolyline`) by passing an array of arrays
// of geographic points.
L.polyline = function (latlngs, options) {
	return new L.Polyline(latlngs, options);
};

L.Polyline._flat = function (latlngs) {
	// true if it's a flat array of latlngs; false if nested
	return !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');
};



/*
 * @namespace PolyUtil
 * Various utility functions for polygon geometries.
 */

L.PolyUtil = {};

/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]
 * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).
 * Used by Leaflet to only show polygon points that are on the screen or near, increasing
 * performance. Note that polygon points needs different algorithm for clipping
 * than polyline, so there's a seperate method for it.
 */
L.PolyUtil.clipPolygon = function (points, bounds, round) {
	var clippedPoints,
	    edges = [1, 4, 2, 8],
	    i, j, k,
	    a, b,
	    len, edge, p,
	    lu = L.LineUtil;

	for (i = 0, len = points.length; i < len; i++) {
		points[i]._code = lu._getBitCode(points[i], bounds);
	}

	// for each edge (left, bottom, right, top)
	for (k = 0; k < 4; k++) {
		edge = edges[k];
		clippedPoints = [];

		for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
			a = points[i];
			b = points[j];

			// if a is inside the clip window
			if (!(a._code & edge)) {
				// if b is outside the clip window (a->b goes out of screen)
				if (b._code & edge) {
					p = lu._getEdgeIntersection(b, a, edge, bounds, round);
					p._code = lu._getBitCode(p, bounds);
					clippedPoints.push(p);
				}
				clippedPoints.push(a);

			// else if b is inside the clip window (a->b enters the screen)
			} else if (!(b._code & edge)) {
				p = lu._getEdgeIntersection(b, a, edge, bounds, round);
				p._code = lu._getBitCode(p, bounds);
				clippedPoints.push(p);
			}
		}
		points = clippedPoints;
	}

	return points;
};



/*
 * @class Polygon
 * @aka L.Polygon
 * @inherits Polyline
 *
 * A class for drawing polygon overlays on a map. Extends `Polyline`.
 *
 * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.
 *
 *
 * @example
 *
 * ```js
 * // create a red polygon from an array of LatLng points
 * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]];
 *
 * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);
 *
 * // zoom the map to the polygon
 * map.fitBounds(polygon.getBounds());
 * ```
 *
 * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:
 *
 * ```js
 * var latlngs = [
 *   [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring
 *   [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole
 * ];
 * ```
 *
 * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.
 *
 * ```js
 * var latlngs = [
 *   [ // first polygon
 *     [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring
 *     [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole
 *   ],
 *   [ // second polygon
 *     [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]]
 *   ]
 * ];
 * ```
 */

L.Polygon = L.Polyline.extend({

	options: {
		fill: true
	},

	isEmpty: function () {
		return !this._latlngs.length || !this._latlngs[0].length;
	},

	getCenter: function () {
		// throws error when not yet added to map as this center calculation requires projected coordinates
		if (!this._map) {
			throw new Error('Must add layer to map before using getCenter()');
		}

		var i, j, p1, p2, f, area, x, y, center,
		    points = this._rings[0],
		    len = points.length;

		if (!len) { return null; }

		// polygon centroid algorithm; only uses the first ring if there are multiple

		area = x = y = 0;

		for (i = 0, j = len - 1; i < len; j = i++) {
			p1 = points[i];
			p2 = points[j];

			f = p1.y * p2.x - p2.y * p1.x;
			x += (p1.x + p2.x) * f;
			y += (p1.y + p2.y) * f;
			area += f * 3;
		}

		if (area === 0) {
			// Polygon is so small that all points are on same pixel.
			center = points[0];
		} else {
			center = [x / area, y / area];
		}
		return this._map.layerPointToLatLng(center);
	},

	_convertLatLngs: function (latlngs) {
		var result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),
		    len = result.length;

		// remove last point if it equals first one
		if (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {
			result.pop();
		}
		return result;
	},

	_setLatLngs: function (latlngs) {
		L.Polyline.prototype._setLatLngs.call(this, latlngs);
		if (L.Polyline._flat(this._latlngs)) {
			this._latlngs = [this._latlngs];
		}
	},

	_defaultShape: function () {
		return L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];
	},

	_clipPoints: function () {
		// polygons need a different clipping algorithm so we redefine that

		var bounds = this._renderer._bounds,
		    w = this.options.weight,
		    p = new L.Point(w, w);

		// increase clip padding by stroke width to avoid stroke on clip edges
		bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));

		this._parts = [];
		if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
			return;
		}

		if (this.options.noClip) {
			this._parts = this._rings;
			return;
		}

		for (var i = 0, len = this._rings.length, clipped; i < len; i++) {
			clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);
			if (clipped.length) {
				this._parts.push(clipped);
			}
		}
	},

	_updatePath: function () {
		this._renderer._updatePoly(this, true);
	}
});


// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)
L.polygon = function (latlngs, options) {
	return new L.Polygon(latlngs, options);
};



/*
 * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
 */

/*
 * @class Rectangle
 * @aka L.Retangle
 * @inherits Polygon
 *
 * A class for drawing rectangle overlays on a map. Extends `Polygon`.
 *
 * @example
 *
 * ```js
 * // define rectangle geographical bounds
 * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];
 *
 * // create an orange rectangle
 * L.rectangle(bounds, {color: "#ff7800", weight: 1}).addTo(map);
 *
 * // zoom the map to the rectangle bounds
 * map.fitBounds(bounds);
 * ```
 *
 */


L.Rectangle = L.Polygon.extend({
	initialize: function (latLngBounds, options) {
		L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
	},

	// @method setBounds(latLngBounds: LatLngBounds): this
	// Redraws the rectangle with the passed bounds.
	setBounds: function (latLngBounds) {
		return this.setLatLngs(this._boundsToLatLngs(latLngBounds));
	},

	_boundsToLatLngs: function (latLngBounds) {
		latLngBounds = L.latLngBounds(latLngBounds);
		return [
			latLngBounds.getSouthWest(),
			latLngBounds.getNorthWest(),
			latLngBounds.getNorthEast(),
			latLngBounds.getSouthEast()
		];
	}
});


// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)
L.rectangle = function (latLngBounds, options) {
	return new L.Rectangle(latLngBounds, options);
};



/*
 * @class CircleMarker
 * @aka L.CircleMarker
 * @inherits Path
 *
 * A circle of a fixed size with radius specified in pixels. Extends `Path`.
 */

L.CircleMarker = L.Path.extend({

	// @section
	// @aka CircleMarker options
	options: {
		fill: true,

		// @option radius: Number = 10
		// Radius of the circle marker, in pixels
		radius: 10
	},

	initialize: function (latlng, options) {
		L.setOptions(this, options);
		this._latlng = L.latLng(latlng);
		this._radius = this.options.radius;
	},

	// @method setLatLng(latLng: LatLng): this
	// Sets the position of a circle marker to a new location.
	setLatLng: function (latlng) {
		this._latlng = L.latLng(latlng);
		this.redraw();
		return this.fire('move', {latlng: this._latlng});
	},

	// @method getLatLng(): LatLng
	// Returns the current geographical position of the circle marker
	getLatLng: function () {
		return this._latlng;
	},

	// @method setRadius(radius: Number): this
	// Sets the radius of a circle marker. Units are in pixels.
	setRadius: function (radius) {
		this.options.radius = this._radius = radius;
		return this.redraw();
	},

	// @method getRadius(): Number
	// Returns the current radius of the circle
	getRadius: function () {
		return this._radius;
	},

	setStyle : function (options) {
		var radius = options && options.radius || this._radius;
		L.Path.prototype.setStyle.call(this, options);
		this.setRadius(radius);
		return this;
	},

	_project: function () {
		this._point = this._map.latLngToLayerPoint(this._latlng);
		this._updateBounds();
	},

	_updateBounds: function () {
		var r = this._radius,
		    r2 = this._radiusY || r,
		    w = this._clickTolerance(),
		    p = [r + w, r2 + w];
		this._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));
	},

	_update: function () {
		if (this._map) {
			this._updatePath();
		}
	},

	_updatePath: function () {
		this._renderer._updateCircle(this);
	},

	_empty: function () {
		return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
	}
});


// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)
// Instantiates a circle marker object given a geographical point, and an optional options object.
L.circleMarker = function (latlng, options) {
	return new L.CircleMarker(latlng, options);
};



/*
 * @class Circle
 * @aka L.Circle
 * @inherits CircleMarker
 *
 * A class for drawing circle overlays on a map. Extends `CircleMarker`.
 *
 * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).
 *
 * @example
 *
 * ```js
 * L.circle([50.5, 30.5], {radius: 200}).addTo(map);
 * ```
 */

L.Circle = L.CircleMarker.extend({

	initialize: function (latlng, options, legacyOptions) {
		if (typeof options === 'number') {
			// Backwards compatibility with 0.7.x factory (latlng, radius, options?)
			options = L.extend({}, legacyOptions, {radius: options});
		}
		L.setOptions(this, options);
		this._latlng = L.latLng(latlng);

		if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }

		// @section
		// @aka Circle options
		// @option radius: Number; Radius of the circle, in meters.
		this._mRadius = this.options.radius;
	},

	// @method setRadius(radius: Number): this
	// Sets the radius of a circle. Units are in meters.
	setRadius: function (radius) {
		this._mRadius = radius;
		return this.redraw();
	},

	// @method getRadius(): Number
	// Returns the current radius of a circle. Units are in meters.
	getRadius: function () {
		return this._mRadius;
	},

	// @method getBounds(): LatLngBounds
	// Returns the `LatLngBounds` of the path.
	getBounds: function () {
		var half = [this._radius, this._radiusY || this._radius];

		return new L.LatLngBounds(
			this._map.layerPointToLatLng(this._point.subtract(half)),
			this._map.layerPointToLatLng(this._point.add(half)));
	},

	setStyle: L.Path.prototype.setStyle,

	_project: function () {

		var lng = this._latlng.lng,
		    lat = this._latlng.lat,
		    map = this._map,
		    crs = map.options.crs;

		if (crs.distance === L.CRS.Earth.distance) {
			var d = Math.PI / 180,
			    latR = (this._mRadius / L.CRS.Earth.R) / d,
			    top = map.project([lat + latR, lng]),
			    bottom = map.project([lat - latR, lng]),
			    p = top.add(bottom).divideBy(2),
			    lat2 = map.unproject(p).lat,
			    lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /
			            (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;

			if (isNaN(lngR) || lngR === 0) {
				lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425
			}

			this._point = p.subtract(map.getPixelOrigin());
			this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);
			this._radiusY = Math.max(Math.round(p.y - top.y), 1);

		} else {
			var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));

			this._point = map.latLngToLayerPoint(this._latlng);
			this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
		}

		this._updateBounds();
	}
});

// @factory L.circle(latlng: LatLng, options?: Circle options)
// Instantiates a circle object given a geographical point, and an options object
// which contains the circle radius.
// @alternative
// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)
// Obsolete way of instantiating a circle, for compatibility with 0.7.x code.
// Do not use in new applications or plugins.
L.circle = function (latlng, options, legacyOptions) {
	return new L.Circle(latlng, options, legacyOptions);
};



/*
 * @class SVG
 * @inherits Renderer
 * @aka L.SVG
 *
 * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).
 * Inherits `Renderer`.
 *
 * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not
 * available in all web browsers, notably Android 2.x and 3.x.
 *
 * Although SVG is not available on IE7 and IE8, these browsers support
 * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)
 * (a now deprecated technology), and the SVG renderer will fall back to VML in
 * this case.
 *
 * @example
 *
 * Use SVG by default for all paths in the map:
 *
 * ```js
 * var map = L.map('map', {
 * 	renderer: L.svg()
 * });
 * ```
 *
 * Use a SVG renderer with extra padding for specific vector geometries:
 *
 * ```js
 * var map = L.map('map');
 * var myRenderer = L.svg({ padding: 0.5 });
 * var line = L.polyline( coordinates, { renderer: myRenderer } );
 * var circle = L.circle( center, { renderer: myRenderer } );
 * ```
 */

L.SVG = L.Renderer.extend({

	getEvents: function () {
		var events = L.Renderer.prototype.getEvents.call(this);
		events.zoomstart = this._onZoomStart;
		return events;
	},

	_initContainer: function () {
		this._container = L.SVG.create('svg');

		// makes it possible to click through svg root; we'll reset it back in individual paths
		this._container.setAttribute('pointer-events', 'none');

		this._rootGroup = L.SVG.create('g');
		this._container.appendChild(this._rootGroup);
	},

	_onZoomStart: function () {
		// Drag-then-pinch interactions might mess up the center and zoom.
		// In this case, the easiest way to prevent this is re-do the renderer
		//   bounds and padding when the zooming starts.
		this._update();
	},

	_update: function () {
		if (this._map._animatingZoom && this._bounds) { return; }

		L.Renderer.prototype._update.call(this);

		var b = this._bounds,
		    size = b.getSize(),
		    container = this._container;

		// set size of svg-container if changed
		if (!this._svgSize || !this._svgSize.equals(size)) {
			this._svgSize = size;
			container.setAttribute('width', size.x);
			container.setAttribute('height', size.y);
		}

		// movement: update container viewBox so that we don't have to change coordinates of individual layers
		L.DomUtil.setPosition(container, b.min);
		container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));

		this.fire('update');
	},

	// methods below are called by vector layers implementations

	_initPath: function (layer) {
		var path = layer._path = L.SVG.create('path');

		// @namespace Path
		// @option className: String = null
		// Custom class name set on an element. Only for SVG renderer.
		if (layer.options.className) {
			L.DomUtil.addClass(path, layer.options.className);
		}

		if (layer.options.interactive) {
			L.DomUtil.addClass(path, 'leaflet-interactive');
		}

		this._updateStyle(layer);
		this._layers[L.stamp(layer)] = layer;
	},

	_addPath: function (layer) {
		this._rootGroup.appendChild(layer._path);
		layer.addInteractiveTarget(layer._path);
	},

	_removePath: function (layer) {
		L.DomUtil.remove(layer._path);
		layer.removeInteractiveTarget(layer._path);
		delete this._layers[L.stamp(layer)];
	},

	_updatePath: function (layer) {
		layer._project();
		layer._update();
	},

	_updateStyle: function (layer) {
		var path = layer._path,
		    options = layer.options;

		if (!path) { return; }

		if (options.stroke) {
			path.setAttribute('stroke', options.color);
			path.setAttribute('stroke-opacity', options.opacity);
			path.setAttribute('stroke-width', options.weight);
			path.setAttribute('stroke-linecap', options.lineCap);
			path.setAttribute('stroke-linejoin', options.lineJoin);

			if (options.dashArray) {
				path.setAttribute('stroke-dasharray', options.dashArray);
			} else {
				path.removeAttribute('stroke-dasharray');
			}

			if (options.dashOffset) {
				path.setAttribute('stroke-dashoffset', options.dashOffset);
			} else {
				path.removeAttribute('stroke-dashoffset');
			}
		} else {
			path.setAttribute('stroke', 'none');
		}

		if (options.fill) {
			path.setAttribute('fill', options.fillColor || options.color);
			path.setAttribute('fill-opacity', options.fillOpacity);
			path.setAttribute('fill-rule', options.fillRule || 'evenodd');
		} else {
			path.setAttribute('fill', 'none');
		}
	},

	_updatePoly: function (layer, closed) {
		this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));
	},

	_updateCircle: function (layer) {
		var p = layer._point,
		    r = layer._radius,
		    r2 = layer._radiusY || r,
		    arc = 'a' + r + ',' + r2 + ' 0 1,0 ';

		// drawing a circle with two half-arcs
		var d = layer._empty() ? 'M0 0' :
				'M' + (p.x - r) + ',' + p.y +
				arc + (r * 2) + ',0 ' +
				arc + (-r * 2) + ',0 ';

		this._setPath(layer, d);
	},

	_setPath: function (layer, path) {
		layer._path.setAttribute('d', path);
	},

	// SVG does not have the concept of zIndex so we resort to changing the DOM order of elements
	_bringToFront: function (layer) {
		L.DomUtil.toFront(layer._path);
	},

	_bringToBack: function (layer) {
		L.DomUtil.toBack(layer._path);
	}
});


// @namespace SVG; @section
// There are several static functions which can be called without instantiating L.SVG:
L.extend(L.SVG, {
	// @function create(name: String): SVGElement
	// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),
	// corresponding to the class name passed. For example, using 'line' will return
	// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).
	create: function (name) {
		return document.createElementNS('http://www.w3.org/2000/svg', name);
	},

	// @function pointsToPath(rings: Point[], closed: Boolean): String
	// Generates a SVG path string for multiple rings, with each ring turning
	// into "M..L..L.." instructions
	pointsToPath: function (rings, closed) {
		var str = '',
		    i, j, len, len2, points, p;

		for (i = 0, len = rings.length; i < len; i++) {
			points = rings[i];

			for (j = 0, len2 = points.length; j < len2; j++) {
				p = points[j];
				str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
			}

			// closes the ring for polygons; "x" is VML syntax
			str += closed ? (L.Browser.svg ? 'z' : 'x') : '';
		}

		// SVG complains about empty path strings
		return str || 'M0 0';
	}
});

// @namespace Browser; @property svg: Boolean
// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).
L.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);


// @namespace SVG
// @factory L.svg(options?: Renderer options)
// Creates a SVG renderer with the given options.
L.svg = function (options) {
	return L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;
};



/*
 * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
 */

/*
 * @class SVG
 *
 * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.
 *
 * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility
 * with old versions of Internet Explorer.
 */

// @namespace Browser; @property vml: Boolean
// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).
L.Browser.vml = !L.Browser.svg && (function () {
	try {
		var div = document.createElement('div');
		div.innerHTML = '<v:shape adj="1"/>';

		var shape = div.firstChild;
		shape.style.behavior = 'url(#default#VML)';

		return shape && (typeof shape.adj === 'object');

	} catch (e) {
		return false;
	}
}());

// redefine some SVG methods to handle VML syntax which is similar but with some differences
L.SVG.include(!L.Browser.vml ? {} : {

	_initContainer: function () {
		this._container = L.DomUtil.create('div', 'leaflet-vml-container');
	},

	_update: function () {
		if (this._map._animatingZoom) { return; }
		L.Renderer.prototype._update.call(this);
		this.fire('update');
	},

	_initPath: function (layer) {
		var container = layer._container = L.SVG.create('shape');

		L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));

		container.coordsize = '1 1';

		layer._path = L.SVG.create('path');
		container.appendChild(layer._path);

		this._updateStyle(layer);
		this._layers[L.stamp(layer)] = layer;
	},

	_addPath: function (layer) {
		var container = layer._container;
		this._container.appendChild(container);

		if (layer.options.interactive) {
			layer.addInteractiveTarget(container);
		}
	},

	_removePath: function (layer) {
		var container = layer._container;
		L.DomUtil.remove(container);
		layer.removeInteractiveTarget(container);
		delete this._layers[L.stamp(layer)];
	},

	_updateStyle: function (layer) {
		var stroke = layer._stroke,
		    fill = layer._fill,
		    options = layer.options,
		    container = layer._container;

		container.stroked = !!options.stroke;
		container.filled = !!options.fill;

		if (options.stroke) {
			if (!stroke) {
				stroke = layer._stroke = L.SVG.create('stroke');
			}
			container.appendChild(stroke);
			stroke.weight = options.weight + 'px';
			stroke.color = options.color;
			stroke.opacity = options.opacity;

			if (options.dashArray) {
				stroke.dashStyle = L.Util.isArray(options.dashArray) ?
				    options.dashArray.join(' ') :
				    options.dashArray.replace(/( *, *)/g, ' ');
			} else {
				stroke.dashStyle = '';
			}
			stroke.endcap = options.lineCap.replace('butt', 'flat');
			stroke.joinstyle = options.lineJoin;

		} else if (stroke) {
			container.removeChild(stroke);
			layer._stroke = null;
		}

		if (options.fill) {
			if (!fill) {
				fill = layer._fill = L.SVG.create('fill');
			}
			container.appendChild(fill);
			fill.color = options.fillColor || options.color;
			fill.opacity = options.fillOpacity;

		} else if (fill) {
			container.removeChild(fill);
			layer._fill = null;
		}
	},

	_updateCircle: function (layer) {
		var p = layer._point.round(),
		    r = Math.round(layer._radius),
		    r2 = Math.round(layer._radiusY || r);

		this._setPath(layer, layer._empty() ? 'M0 0' :
				'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));
	},

	_setPath: function (layer, path) {
		layer._path.v = path;
	},

	_bringToFront: function (layer) {
		L.DomUtil.toFront(layer._container);
	},

	_bringToBack: function (layer) {
		L.DomUtil.toBack(layer._container);
	}
});

if (L.Browser.vml) {
	L.SVG.create = (function () {
		try {
			document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
			return function (name) {
				return document.createElement('<lvml:' + name + ' class="lvml">');
			};
		} catch (e) {
			return function (name) {
				return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
			};
		}
	})();
}



/*
 * @class Canvas
 * @inherits Renderer
 * @aka L.Canvas
 *
 * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
 * Inherits `Renderer`.
 *
 * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not
 * available in all web browsers, notably IE8, and overlapping geometries might
 * not display properly in some edge cases.
 *
 * @example
 *
 * Use Canvas by default for all paths in the map:
 *
 * ```js
 * var map = L.map('map', {
 * 	renderer: L.canvas()
 * });
 * ```
 *
 * Use a Canvas renderer with extra padding for specific vector geometries:
 *
 * ```js
 * var map = L.map('map');
 * var myRenderer = L.canvas({ padding: 0.5 });
 * var line = L.polyline( coordinates, { renderer: myRenderer } );
 * var circle = L.circle( center, { renderer: myRenderer } );
 * ```
 */

L.Canvas = L.Renderer.extend({
	getEvents: function () {
		var events = L.Renderer.prototype.getEvents.call(this);
		events.viewprereset = this._onViewPreReset;
		return events;
	},

	_onViewPreReset: function () {
		// Set a flag so that a viewprereset+moveend+viewreset only updates&redraws once
		this._postponeUpdatePaths = true;
	},

	onAdd: function () {
		L.Renderer.prototype.onAdd.call(this);

		// Redraw vectors since canvas is cleared upon removal,
		// in case of removing the renderer itself from the map.
		this._draw();
	},

	_initContainer: function () {
		var container = this._container = document.createElement('canvas');

		L.DomEvent
			.on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this)
			.on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this)
			.on(container, 'mouseout', this._handleMouseOut, this);

		this._ctx = container.getContext('2d');
	},

	_updatePaths: function () {
		if (this._postponeUpdatePaths) { return; }

		var layer;
		this._redrawBounds = null;
		for (var id in this._layers) {
			layer = this._layers[id];
			layer._update();
		}
		this._redraw();
	},

	_update: function () {
		if (this._map._animatingZoom && this._bounds) { return; }

		this._drawnLayers = {};

		L.Renderer.prototype._update.call(this);

		var b = this._bounds,
		    container = this._container,
		    size = b.getSize(),
		    m = L.Browser.retina ? 2 : 1;

		L.DomUtil.setPosition(container, b.min);

		// set canvas size (also clearing it); use double size on retina
		container.width = m * size.x;
		container.height = m * size.y;
		container.style.width = size.x + 'px';
		container.style.height = size.y + 'px';

		if (L.Browser.retina) {
			this._ctx.scale(2, 2);
		}

		// translate so we use the same path coordinates after canvas element moves
		this._ctx.translate(-b.min.x, -b.min.y);

		// Tell paths to redraw themselves
		this.fire('update');
	},

	_reset: function () {
		L.Renderer.prototype._reset.call(this);

		if (this._postponeUpdatePaths) {
			this._postponeUpdatePaths = false;
			this._updatePaths();
		}
	},

	_initPath: function (layer) {
		this._updateDashArray(layer);
		this._layers[L.stamp(layer)] = layer;

		var order = layer._order = {
			layer: layer,
			prev: this._drawLast,
			next: null
		};
		if (this._drawLast) { this._drawLast.next = order; }
		this._drawLast = order;
		this._drawFirst = this._drawFirst || this._drawLast;
	},

	_addPath: function (layer) {
		this._requestRedraw(layer);
	},

	_removePath: function (layer) {
		var order = layer._order;
		var next = order.next;
		var prev = order.prev;

		if (next) {
			next.prev = prev;
		} else {
			this._drawLast = prev;
		}
		if (prev) {
			prev.next = next;
		} else {
			this._drawFirst = next;
		}

		delete layer._order;

		delete this._layers[L.stamp(layer)];

		this._requestRedraw(layer);
	},

	_updatePath: function (layer) {
		// Redraw the union of the layer's old pixel
		// bounds and the new pixel bounds.
		this._extendRedrawBounds(layer);
		layer._project();
		layer._update();
		// The redraw will extend the redraw bounds
		// with the new pixel bounds.
		this._requestRedraw(layer);
	},

	_updateStyle: function (layer) {
		this._updateDashArray(layer);
		this._requestRedraw(layer);
	},

	_updateDashArray: function (layer) {
		if (layer.options.dashArray) {
			var parts = layer.options.dashArray.split(','),
			    dashArray = [],
			    i;
			for (i = 0; i < parts.length; i++) {
				dashArray.push(Number(parts[i]));
			}
			layer.options._dashArray = dashArray;
		}
	},

	_requestRedraw: function (layer) {
		if (!this._map) { return; }

		this._extendRedrawBounds(layer);
		this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);
	},

	_extendRedrawBounds: function (layer) {
		var padding = (layer.options.weight || 0) + 1;
		this._redrawBounds = this._redrawBounds || new L.Bounds();
		this._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));
		this._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));
	},

	_redraw: function () {
		this._redrawRequest = null;

		if (this._redrawBounds) {
			this._redrawBounds.min._floor();
			this._redrawBounds.max._ceil();
		}

		this._clear(); // clear layers in redraw bounds
		this._draw(); // draw layers

		this._redrawBounds = null;
	},

	_clear: function () {
		var bounds = this._redrawBounds;
		if (bounds) {
			var size = bounds.getSize();
			this._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);
		} else {
			this._ctx.clearRect(0, 0, this._container.width, this._container.height);
		}
	},

	_draw: function () {
		var layer, bounds = this._redrawBounds;
		this._ctx.save();
		if (bounds) {
			var size = bounds.getSize();
			this._ctx.beginPath();
			this._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);
			this._ctx.clip();
		}

		this._drawing = true;

		for (var order = this._drawFirst; order; order = order.next) {
			layer = order.layer;
			if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {
				layer._updatePath();
			}
		}

		this._drawing = false;

		this._ctx.restore();  // Restore state before clipping.
	},

	_updatePoly: function (layer, closed) {
		if (!this._drawing) { return; }

		var i, j, len2, p,
		    parts = layer._parts,
		    len = parts.length,
		    ctx = this._ctx;

		if (!len) { return; }

		this._drawnLayers[layer._leaflet_id] = layer;

		ctx.beginPath();

		if (ctx.setLineDash) {
			ctx.setLineDash(layer.options && layer.options._dashArray || []);
		}

		for (i = 0; i < len; i++) {
			for (j = 0, len2 = parts[i].length; j < len2; j++) {
				p = parts[i][j];
				ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);
			}
			if (closed) {
				ctx.closePath();
			}
		}

		this._fillStroke(ctx, layer);

		// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
	},

	_updateCircle: function (layer) {

		if (!this._drawing || layer._empty()) { return; }

		var p = layer._point,
		    ctx = this._ctx,
		    r = layer._radius,
		    s = (layer._radiusY || r) / r;

		this._drawnLayers[layer._leaflet_id] = layer;

		if (s !== 1) {
			ctx.save();
			ctx.scale(1, s);
		}

		ctx.beginPath();
		ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);

		if (s !== 1) {
			ctx.restore();
		}

		this._fillStroke(ctx, layer);
	},

	_fillStroke: function (ctx, layer) {
		var options = layer.options;

		if (options.fill) {
			ctx.globalAlpha = options.fillOpacity;
			ctx.fillStyle = options.fillColor || options.color;
			ctx.fill(options.fillRule || 'evenodd');
		}

		if (options.stroke && options.weight !== 0) {
			ctx.globalAlpha = options.opacity;
			ctx.lineWidth = options.weight;
			ctx.strokeStyle = options.color;
			ctx.lineCap = options.lineCap;
			ctx.lineJoin = options.lineJoin;
			ctx.stroke();
		}
	},

	// Canvas obviously doesn't have mouse events for individual drawn objects,
	// so we emulate that by calculating what's under the mouse on mousemove/click manually

	_onClick: function (e) {
		var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;

		for (var order = this._drawFirst; order; order = order.next) {
			layer = order.layer;
			if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {
				clickedLayer = layer;
			}
		}
		if (clickedLayer)  {
			L.DomEvent._fakeStop(e);
			this._fireEvent([clickedLayer], e);
		}
	},

	_onMouseMove: function (e) {
		if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }

		var point = this._map.mouseEventToLayerPoint(e);
		this._handleMouseHover(e, point);
	},


	_handleMouseOut: function (e) {
		var layer = this._hoveredLayer;
		if (layer) {
			// if we're leaving the layer, fire mouseout
			L.DomUtil.removeClass(this._container, 'leaflet-interactive');
			this._fireEvent([layer], e, 'mouseout');
			this._hoveredLayer = null;
		}
	},

	_handleMouseHover: function (e, point) {
		var layer, candidateHoveredLayer;

		for (var order = this._drawFirst; order; order = order.next) {
			layer = order.layer;
			if (layer.options.interactive && layer._containsPoint(point)) {
				candidateHoveredLayer = layer;
			}
		}

		if (candidateHoveredLayer !== this._hoveredLayer) {
			this._handleMouseOut(e);

			if (candidateHoveredLayer) {
				L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor
				this._fireEvent([candidateHoveredLayer], e, 'mouseover');
				this._hoveredLayer = candidateHoveredLayer;
			}
		}

		if (this._hoveredLayer) {
			this._fireEvent([this._hoveredLayer], e);
		}
	},

	_fireEvent: function (layers, e, type) {
		this._map._fireDOMEvent(e, type || e.type, layers);
	},

	_bringToFront: function (layer) {
		var order = layer._order;
		var next = order.next;
		var prev = order.prev;

		if (next) {
			next.prev = prev;
		} else {
			// Already last
			return;
		}
		if (prev) {
			prev.next = next;
		} else if (next) {
			// Update first entry unless this is the
			// signle entry
			this._drawFirst = next;
		}

		order.prev = this._drawLast;
		this._drawLast.next = order;

		order.next = null;
		this._drawLast = order;

		this._requestRedraw(layer);
	},

	_bringToBack: function (layer) {
		var order = layer._order;
		var next = order.next;
		var prev = order.prev;

		if (prev) {
			prev.next = next;
		} else {
			// Already first
			return;
		}
		if (next) {
			next.prev = prev;
		} else if (prev) {
			// Update last entry unless this is the
			// signle entry
			this._drawLast = prev;
		}

		order.prev = null;

		order.next = this._drawFirst;
		this._drawFirst.prev = order;
		this._drawFirst = order;

		this._requestRedraw(layer);
	}
});

// @namespace Browser; @property canvas: Boolean
// `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
L.Browser.canvas = (function () {
	return !!document.createElement('canvas').getContext;
}());

// @namespace Canvas
// @factory L.canvas(options?: Renderer options)
// Creates a Canvas renderer with the given options.
L.canvas = function (options) {
	return L.Browser.canvas ? new L.Canvas(options) : null;
};

L.Polyline.prototype._containsPoint = function (p, closed) {
	var i, j, k, len, len2, part,
	    w = this._clickTolerance();

	if (!this._pxBounds.contains(p)) { return false; }

	// hit detection for polylines
	for (i = 0, len = this._parts.length; i < len; i++) {
		part = this._parts[i];

		for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
			if (!closed && (j === 0)) { continue; }

			if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {
				return true;
			}
		}
	}
	return false;
};

L.Polygon.prototype._containsPoint = function (p) {
	var inside = false,
	    part, p1, p2, i, j, k, len, len2;

	if (!this._pxBounds.contains(p)) { return false; }

	// ray casting algorithm for detecting if point is in polygon
	for (i = 0, len = this._parts.length; i < len; i++) {
		part = this._parts[i];

		for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
			p1 = part[j];
			p2 = part[k];

			if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
				inside = !inside;
			}
		}
	}

	// also check if it's on polygon stroke
	return inside || L.Polyline.prototype._containsPoint.call(this, p, true);
};

L.CircleMarker.prototype._containsPoint = function (p) {
	return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
};



/*
 * @class GeoJSON
 * @aka L.GeoJSON
 * @inherits FeatureGroup
 *
 * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse
 * GeoJSON data and display it on the map. Extends `FeatureGroup`.
 *
 * @example
 *
 * ```js
 * L.geoJSON(data, {
 * 	style: function (feature) {
 * 		return {color: feature.properties.color};
 * 	}
 * }).bindPopup(function (layer) {
 * 	return layer.feature.properties.description;
 * }).addTo(map);
 * ```
 */

L.GeoJSON = L.FeatureGroup.extend({

	/* @section
	 * @aka GeoJSON options
	 *
	 * @option pointToLayer: Function = *
	 * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally
	 * called when data is added, passing the GeoJSON point feature and its `LatLng`.
	 * The default is to spawn a default `Marker`:
	 * ```js
	 * function(geoJsonPoint, latlng) {
	 * 	return L.marker(latlng);
	 * }
	 * ```
	 *
	 * @option style: Function = *
	 * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,
	 * called internally when data is added.
	 * The default value is to not override any defaults:
	 * ```js
	 * function (geoJsonFeature) {
	 * 	return {}
	 * }
	 * ```
	 *
	 * @option onEachFeature: Function = *
	 * A `Function` that will be called once for each created `Feature`, after it has
	 * been created and styled. Useful for attaching events and popups to features.
	 * The default is to do nothing with the newly created layers:
	 * ```js
	 * function (feature, layer) {}
	 * ```
	 *
	 * @option filter: Function = *
	 * A `Function` that will be used to decide whether to include a feature or not.
	 * The default is to include all features:
	 * ```js
	 * function (geoJsonFeature) {
	 * 	return true;
	 * }
	 * ```
	 * Note: dynamically changing the `filter` option will have effect only on newly
	 * added data. It will _not_ re-evaluate already included features.
	 *
	 * @option coordsToLatLng: Function = *
	 * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.
	 * The default is the `coordsToLatLng` static method.
	 */

	initialize: function (geojson, options) {
		L.setOptions(this, options);

		this._layers = {};

		if (geojson) {
			this.addData(geojson);
		}
	},

	// @method addData( <GeoJSON> data ): this
	// Adds a GeoJSON object to the layer.
	addData: function (geojson) {
		var features = L.Util.isArray(geojson) ? geojson : geojson.features,
		    i, len, feature;

		if (features) {
			for (i = 0, len = features.length; i < len; i++) {
				// only add this if geometry or geometries are set and not null
				feature = features[i];
				if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
					this.addData(feature);
				}
			}
			return this;
		}

		var options = this.options;

		if (options.filter && !options.filter(geojson)) { return this; }

		var layer = L.GeoJSON.geometryToLayer(geojson, options);
		if (!layer) {
			return this;
		}
		layer.feature = L.GeoJSON.asFeature(geojson);

		layer.defaultOptions = layer.options;
		this.resetStyle(layer);

		if (options.onEachFeature) {
			options.onEachFeature(geojson, layer);
		}

		return this.addLayer(layer);
	},

	// @method resetStyle( <Path> layer ): this
	// Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.
	resetStyle: function (layer) {
		// reset any custom styles
		layer.options = L.Util.extend({}, layer.defaultOptions);
		this._setLayerStyle(layer, this.options.style);
		return this;
	},

	// @method setStyle( <Function> style ): this
	// Changes styles of GeoJSON vector layers with the given style function.
	setStyle: function (style) {
		return this.eachLayer(function (layer) {
			this._setLayerStyle(layer, style);
		}, this);
	},

	_setLayerStyle: function (layer, style) {
		if (typeof style === 'function') {
			style = style(layer.feature);
		}
		if (layer.setStyle) {
			layer.setStyle(style);
		}
	}
});

// @section
// There are several static functions which can be called without instantiating L.GeoJSON:
L.extend(L.GeoJSON, {
	// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer
	// Creates a `Layer` from a given GeoJSON feature. Can use a custom
	// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)
	// functions if provided as options.
	geometryToLayer: function (geojson, options) {

		var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
		    coords = geometry ? geometry.coordinates : null,
		    layers = [],
		    pointToLayer = options && options.pointToLayer,
		    coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,
		    latlng, latlngs, i, len;

		if (!coords && !geometry) {
			return null;
		}

		switch (geometry.type) {
		case 'Point':
			latlng = coordsToLatLng(coords);
			return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);

		case 'MultiPoint':
			for (i = 0, len = coords.length; i < len; i++) {
				latlng = coordsToLatLng(coords[i]);
				layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
			}
			return new L.FeatureGroup(layers);

		case 'LineString':
		case 'MultiLineString':
			latlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);
			return new L.Polyline(latlngs, options);

		case 'Polygon':
		case 'MultiPolygon':
			latlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);
			return new L.Polygon(latlngs, options);

		case 'GeometryCollection':
			for (i = 0, len = geometry.geometries.length; i < len; i++) {
				var layer = this.geometryToLayer({
					geometry: geometry.geometries[i],
					type: 'Feature',
					properties: geojson.properties
				}, options);

				if (layer) {
					layers.push(layer);
				}
			}
			return new L.FeatureGroup(layers);

		default:
			throw new Error('Invalid GeoJSON object.');
		}
	},

	// @function coordsToLatLng(coords: Array): LatLng
	// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)
	// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.
	coordsToLatLng: function (coords) {
		return new L.LatLng(coords[1], coords[0], coords[2]);
	},

	// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array
	// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.
	// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).
	// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.
	coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {
		var latlngs = [];

		for (var i = 0, len = coords.length, latlng; i < len; i++) {
			latlng = levelsDeep ?
			        this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
			        (coordsToLatLng || this.coordsToLatLng)(coords[i]);

			latlngs.push(latlng);
		}

		return latlngs;
	},

	// @function latLngToCoords(latlng: LatLng): Array
	// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)
	latLngToCoords: function (latlng) {
		return latlng.alt !== undefined ?
				[latlng.lng, latlng.lat, latlng.alt] :
				[latlng.lng, latlng.lat];
	},

	// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array
	// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)
	// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.
	latLngsToCoords: function (latlngs, levelsDeep, closed) {
		var coords = [];

		for (var i = 0, len = latlngs.length; i < len; i++) {
			coords.push(levelsDeep ?
				L.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) :
				L.GeoJSON.latLngToCoords(latlngs[i]));
		}

		if (!levelsDeep && closed) {
			coords.push(coords[0]);
		}

		return coords;
	},

	getFeature: function (layer, newGeometry) {
		return layer.feature ?
				L.extend({}, layer.feature, {geometry: newGeometry}) :
				L.GeoJSON.asFeature(newGeometry);
	},

	// @function asFeature(geojson: Object): Object
	// Normalize GeoJSON geometries/features into GeoJSON features.
	asFeature: function (geojson) {
		if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {
			return geojson;
		}

		return {
			type: 'Feature',
			properties: {},
			geometry: geojson
		};
	}
});

var PointToGeoJSON = {
	toGeoJSON: function () {
		return L.GeoJSON.getFeature(this, {
			type: 'Point',
			coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
		});
	}
};

// @namespace Marker
// @method toGeoJSON(): Object
// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).
L.Marker.include(PointToGeoJSON);

// @namespace CircleMarker
// @method toGeoJSON(): Object
// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).
L.Circle.include(PointToGeoJSON);
L.CircleMarker.include(PointToGeoJSON);


// @namespace Polyline
// @method toGeoJSON(): Object
// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).
L.Polyline.prototype.toGeoJSON = function () {
	var multi = !L.Polyline._flat(this._latlngs);

	var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);

	return L.GeoJSON.getFeature(this, {
		type: (multi ? 'Multi' : '') + 'LineString',
		coordinates: coords
	});
};

// @namespace Polygon
// @method toGeoJSON(): Object
// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).
L.Polygon.prototype.toGeoJSON = function () {
	var holes = !L.Polyline._flat(this._latlngs),
	    multi = holes && !L.Polyline._flat(this._latlngs[0]);

	var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);

	if (!holes) {
		coords = [coords];
	}

	return L.GeoJSON.getFeature(this, {
		type: (multi ? 'Multi' : '') + 'Polygon',
		coordinates: coords
	});
};


// @namespace LayerGroup
L.LayerGroup.include({
	toMultiPoint: function () {
		var coords = [];

		this.eachLayer(function (layer) {
			coords.push(layer.toGeoJSON().geometry.coordinates);
		});

		return L.GeoJSON.getFeature(this, {
			type: 'MultiPoint',
			coordinates: coords
		});
	},

	// @method toGeoJSON(): Object
	// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).
	toGeoJSON: function () {

		var type = this.feature && this.feature.geometry && this.feature.geometry.type;

		if (type === 'MultiPoint') {
			return this.toMultiPoint();
		}

		var isGeometryCollection = type === 'GeometryCollection',
		    jsons = [];

		this.eachLayer(function (layer) {
			if (layer.toGeoJSON) {
				var json = layer.toGeoJSON();
				jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
			}
		});

		if (isGeometryCollection) {
			return L.GeoJSON.getFeature(this, {
				geometries: jsons,
				type: 'GeometryCollection'
			});
		}

		return {
			type: 'FeatureCollection',
			features: jsons
		};
	}
});

// @namespace GeoJSON
// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)
// Creates a GeoJSON layer. Optionally accepts an object in
// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map
// (you can alternatively add it later with `addData` method) and an `options` object.
L.geoJSON = function (geojson, options) {
	return new L.GeoJSON(geojson, options);
};
// Backward compatibility.
L.geoJson = L.geoJSON;



/*
 * @class Draggable
 * @aka L.Draggable
 * @inherits Evented
 *
 * A class for making DOM elements draggable (including touch support).
 * Used internally for map and marker dragging. Only works for elements
 * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).
 *
 * @example
 * ```js
 * var draggable = new L.Draggable(elementToDrag);
 * draggable.enable();
 * ```
 */

L.Draggable = L.Evented.extend({

	options: {
		// @option clickTolerance: Number = 3
		// The max number of pixels a user can shift the mouse pointer during a click
		// for it to be considered a valid click (as opposed to a mouse drag).
		clickTolerance: 3
	},

	statics: {
		START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
		END: {
			mousedown: 'mouseup',
			touchstart: 'touchend',
			pointerdown: 'touchend',
			MSPointerDown: 'touchend'
		},
		MOVE: {
			mousedown: 'mousemove',
			touchstart: 'touchmove',
			pointerdown: 'touchmove',
			MSPointerDown: 'touchmove'
		}
	},

	// @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline: Boolean)
	// Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).
	initialize: function (element, dragStartTarget, preventOutline) {
		this._element = element;
		this._dragStartTarget = dragStartTarget || element;
		this._preventOutline = preventOutline;
	},

	// @method enable()
	// Enables the dragging ability
	enable: function () {
		if (this._enabled) { return; }

		L.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);

		this._enabled = true;
	},

	// @method disable()
	// Disables the dragging ability
	disable: function () {
		if (!this._enabled) { return; }

		// If we're currently dragging this draggable,
		// disabling it counts as first ending the drag.
		if (L.Draggable._dragging === this) {
			this.finishDrag();
		}

		L.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);

		this._enabled = false;
		this._moved = false;
	},

	_onDown: function (e) {
		// Ignore simulated events, since we handle both touch and
		// mouse explicitly; otherwise we risk getting duplicates of
		// touch events, see #4315.
		// Also ignore the event if disabled; this happens in IE11
		// under some circumstances, see #3666.
		if (e._simulated || !this._enabled) { return; }

		this._moved = false;

		if (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }

		if (L.Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
		L.Draggable._dragging = this;  // Prevent dragging multiple objects at once.

		if (this._preventOutline) {
			L.DomUtil.preventOutline(this._element);
		}

		L.DomUtil.disableImageDrag();
		L.DomUtil.disableTextSelection();

		if (this._moving) { return; }

		// @event down: Event
		// Fired when a drag is about to start.
		this.fire('down');

		var first = e.touches ? e.touches[0] : e;

		this._startPoint = new L.Point(first.clientX, first.clientY);

		L.DomEvent
			.on(document, L.Draggable.MOVE[e.type], this._onMove, this)
			.on(document, L.Draggable.END[e.type], this._onUp, this);
	},

	_onMove: function (e) {
		// Ignore simulated events, since we handle both touch and
		// mouse explicitly; otherwise we risk getting duplicates of
		// touch events, see #4315.
		// Also ignore the event if disabled; this happens in IE11
		// under some circumstances, see #3666.
		if (e._simulated || !this._enabled) { return; }

		if (e.touches && e.touches.length > 1) {
			this._moved = true;
			return;
		}

		var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
		    newPoint = new L.Point(first.clientX, first.clientY),
		    offset = newPoint.subtract(this._startPoint);

		if (!offset.x && !offset.y) { return; }
		if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }

		L.DomEvent.preventDefault(e);

		if (!this._moved) {
			// @event dragstart: Event
			// Fired when a drag starts
			this.fire('dragstart');

			this._moved = true;
			this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);

			L.DomUtil.addClass(document.body, 'leaflet-dragging');

			this._lastTarget = e.target || e.srcElement;
			// IE and Edge do not give the <use> element, so fetch it
			// if necessary
			if ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {
				this._lastTarget = this._lastTarget.correspondingUseElement;
			}
			L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
		}

		this._newPos = this._startPos.add(offset);
		this._moving = true;

		L.Util.cancelAnimFrame(this._animRequest);
		this._lastEvent = e;
		this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true);
	},

	_updatePosition: function () {
		var e = {originalEvent: this._lastEvent};

		// @event predrag: Event
		// Fired continuously during dragging *before* each corresponding
		// update of the element's position.
		this.fire('predrag', e);
		L.DomUtil.setPosition(this._element, this._newPos);

		// @event drag: Event
		// Fired continuously during dragging.
		this.fire('drag', e);
	},

	_onUp: function (e) {
		// Ignore simulated events, since we handle both touch and
		// mouse explicitly; otherwise we risk getting duplicates of
		// touch events, see #4315.
		// Also ignore the event if disabled; this happens in IE11
		// under some circumstances, see #3666.
		if (e._simulated || !this._enabled) { return; }
		this.finishDrag();
	},

	finishDrag: function () {
		L.DomUtil.removeClass(document.body, 'leaflet-dragging');

		if (this._lastTarget) {
			L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
			this._lastTarget = null;
		}

		for (var i in L.Draggable.MOVE) {
			L.DomEvent
				.off(document, L.Draggable.MOVE[i], this._onMove, this)
				.off(document, L.Draggable.END[i], this._onUp, this);
		}

		L.DomUtil.enableImageDrag();
		L.DomUtil.enableTextSelection();

		if (this._moved && this._moving) {
			// ensure drag is not fired after dragend
			L.Util.cancelAnimFrame(this._animRequest);

			// @event dragend: DragEndEvent
			// Fired when the drag ends.
			this.fire('dragend', {
				distance: this._newPos.distanceTo(this._startPos)
			});
		}

		this._moving = false;
		L.Draggable._dragging = false;
	}

});



/*
	L.Handler is a base class for handler classes that are used internally to inject
	interaction features like dragging to classes like Map and Marker.
*/

// @class Handler
// @aka L.Handler
// Abstract class for map interaction handlers

L.Handler = L.Class.extend({
	initialize: function (map) {
		this._map = map;
	},

	// @method enable(): this
	// Enables the handler
	enable: function () {
		if (this._enabled) { return this; }

		this._enabled = true;
		this.addHooks();
		return this;
	},

	// @method disable(): this
	// Disables the handler
	disable: function () {
		if (!this._enabled) { return this; }

		this._enabled = false;
		this.removeHooks();
		return this;
	},

	// @method enabled(): Boolean
	// Returns `true` if the handler is enabled
	enabled: function () {
		return !!this._enabled;
	}

	// @section Extension methods
	// Classes inheriting from `Handler` must implement the two following methods:
	// @method addHooks()
	// Called when the handler is enabled, should add event hooks.
	// @method removeHooks()
	// Called when the handler is disabled, should remove the event hooks added previously.
});



/*
 * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
 */

// @namespace Map
// @section Interaction Options
L.Map.mergeOptions({
	// @option dragging: Boolean = true
	// Whether the map be draggable with mouse/touch or not.
	dragging: true,

	// @section Panning Inertia Options
	// @option inertia: Boolean = *
	// If enabled, panning of the map will have an inertia effect where
	// the map builds momentum while dragging and continues moving in
	// the same direction for some time. Feels especially nice on touch
	// devices. Enabled by default unless running on old Android devices.
	inertia: !L.Browser.android23,

	// @option inertiaDeceleration: Number = 3000
	// The rate with which the inertial movement slows down, in pixels/second².
	inertiaDeceleration: 3400, // px/s^2

	// @option inertiaMaxSpeed: Number = Infinity
	// Max speed of the inertial movement, in pixels/second.
	inertiaMaxSpeed: Infinity, // px/s

	// @option easeLinearity: Number = 0.2
	easeLinearity: 0.2,

	// TODO refactor, move to CRS
	// @option worldCopyJump: Boolean = false
	// With this option enabled, the map tracks when you pan to another "copy"
	// of the world and seamlessly jumps to the original one so that all overlays
	// like markers and vector layers are still visible.
	worldCopyJump: false,

	// @option maxBoundsViscosity: Number = 0.0
	// If `maxBounds` is set, this option will control how solid the bounds
	// are when dragging the map around. The default value of `0.0` allows the
	// user to drag outside the bounds at normal speed, higher values will
	// slow down map dragging outside bounds, and `1.0` makes the bounds fully
	// solid, preventing the user from dragging outside the bounds.
	maxBoundsViscosity: 0.0
});

L.Map.Drag = L.Handler.extend({
	addHooks: function () {
		if (!this._draggable) {
			var map = this._map;

			this._draggable = new L.Draggable(map._mapPane, map._container);

			this._draggable.on({
				down: this._onDown,
				dragstart: this._onDragStart,
				drag: this._onDrag,
				dragend: this._onDragEnd
			}, this);

			this._draggable.on('predrag', this._onPreDragLimit, this);
			if (map.options.worldCopyJump) {
				this._draggable.on('predrag', this._onPreDragWrap, this);
				map.on('zoomend', this._onZoomEnd, this);

				map.whenReady(this._onZoomEnd, this);
			}
		}
		L.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');
		this._draggable.enable();
		this._positions = [];
		this._times = [];
	},

	removeHooks: function () {
		L.DomUtil.removeClass(this._map._container, 'leaflet-grab');
		L.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');
		this._draggable.disable();
	},

	moved: function () {
		return this._draggable && this._draggable._moved;
	},

	moving: function () {
		return this._draggable && this._draggable._moving;
	},

	_onDown: function () {
		this._map._stop();
	},

	_onDragStart: function () {
		var map = this._map;

		if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {
			var bounds = L.latLngBounds(this._map.options.maxBounds);

			this._offsetLimit = L.bounds(
				this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),
				this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)
					.add(this._map.getSize()));

			this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));
		} else {
			this._offsetLimit = null;
		}

		map
		    .fire('movestart')
		    .fire('dragstart');

		if (map.options.inertia) {
			this._positions = [];
			this._times = [];
		}
	},

	_onDrag: function (e) {
		if (this._map.options.inertia) {
			var time = this._lastTime = +new Date(),
			    pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;

			this._positions.push(pos);
			this._times.push(time);

			if (time - this._times[0] > 50) {
				this._positions.shift();
				this._times.shift();
			}
		}

		this._map
		    .fire('move', e)
		    .fire('drag', e);
	},

	_onZoomEnd: function () {
		var pxCenter = this._map.getSize().divideBy(2),
		    pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);

		this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
		this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
	},

	_viscousLimit: function (value, threshold) {
		return value - (value - threshold) * this._viscosity;
	},

	_onPreDragLimit: function () {
		if (!this._viscosity || !this._offsetLimit) { return; }

		var offset = this._draggable._newPos.subtract(this._draggable._startPos);

		var limit = this._offsetLimit;
		if (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }
		if (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }
		if (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }
		if (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }

		this._draggable._newPos = this._draggable._startPos.add(offset);
	},

	_onPreDragWrap: function () {
		// TODO refactor to be able to adjust map pane position after zoom
		var worldWidth = this._worldWidth,
		    halfWidth = Math.round(worldWidth / 2),
		    dx = this._initialWorldOffset,
		    x = this._draggable._newPos.x,
		    newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
		    newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
		    newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;

		this._draggable._absPos = this._draggable._newPos.clone();
		this._draggable._newPos.x = newX;
	},

	_onDragEnd: function (e) {
		var map = this._map,
		    options = map.options,

		    noInertia = !options.inertia || this._times.length < 2;

		map.fire('dragend', e);

		if (noInertia) {
			map.fire('moveend');

		} else {

			var direction = this._lastPos.subtract(this._positions[0]),
			    duration = (this._lastTime - this._times[0]) / 1000,
			    ease = options.easeLinearity,

			    speedVector = direction.multiplyBy(ease / duration),
			    speed = speedVector.distanceTo([0, 0]),

			    limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
			    limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),

			    decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
			    offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();

			if (!offset.x && !offset.y) {
				map.fire('moveend');

			} else {
				offset = map._limitOffset(offset, map.options.maxBounds);

				L.Util.requestAnimFrame(function () {
					map.panBy(offset, {
						duration: decelerationDuration,
						easeLinearity: ease,
						noMoveStart: true,
						animate: true
					});
				});
			}
		}
	}
});

// @section Handlers
// @property dragging: Handler
// Map dragging handler (by both mouse and touch).
L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);



/*
 * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
 */

// @namespace Map
// @section Interaction Options

L.Map.mergeOptions({
	// @option doubleClickZoom: Boolean|String = true
	// Whether the map can be zoomed in by double clicking on it and
	// zoomed out by double clicking while holding shift. If passed
	// `'center'`, double-click zoom will zoom to the center of the
	//  view regardless of where the mouse was.
	doubleClickZoom: true
});

L.Map.DoubleClickZoom = L.Handler.extend({
	addHooks: function () {
		this._map.on('dblclick', this._onDoubleClick, this);
	},

	removeHooks: function () {
		this._map.off('dblclick', this._onDoubleClick, this);
	},

	_onDoubleClick: function (e) {
		var map = this._map,
		    oldZoom = map.getZoom(),
		    delta = map.options.zoomDelta,
		    zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;

		if (map.options.doubleClickZoom === 'center') {
			map.setZoom(zoom);
		} else {
			map.setZoomAround(e.containerPoint, zoom);
		}
	}
});

// @section Handlers
//
// Map properties include interaction handlers that allow you to control
// interaction behavior in runtime, enabling or disabling certain features such
// as dragging or touch zoom (see `Handler` methods). For example:
//
// ```js
// map.doubleClickZoom.disable();
// ```
//
// @property doubleClickZoom: Handler
// Double click zoom handler.
L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);



/*
 * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
 */

// @namespace Map
// @section Interaction Options
L.Map.mergeOptions({
	// @section Mousewheel options
	// @option scrollWheelZoom: Boolean|String = true
	// Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,
	// it will zoom to the center of the view regardless of where the mouse was.
	scrollWheelZoom: true,

	// @option wheelDebounceTime: Number = 40
	// Limits the rate at which a wheel can fire (in milliseconds). By default
	// user can't zoom via wheel more often than once per 40 ms.
	wheelDebounceTime: 40,

	// @option wheelPxPerZoomLevel: Number = 60
	// How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))
	// mean a change of one full zoom level. Smaller values will make wheel-zooming
	// faster (and vice versa).
	wheelPxPerZoomLevel: 60
});

L.Map.ScrollWheelZoom = L.Handler.extend({
	addHooks: function () {
		L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);

		this._delta = 0;
	},

	removeHooks: function () {
		L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll, this);
	},

	_onWheelScroll: function (e) {
		var delta = L.DomEvent.getWheelDelta(e);

		var debounce = this._map.options.wheelDebounceTime;

		this._delta += delta;
		this._lastMousePos = this._map.mouseEventToContainerPoint(e);

		if (!this._startTime) {
			this._startTime = +new Date();
		}

		var left = Math.max(debounce - (+new Date() - this._startTime), 0);

		clearTimeout(this._timer);
		this._timer = setTimeout(L.bind(this._performZoom, this), left);

		L.DomEvent.stop(e);
	},

	_performZoom: function () {
		var map = this._map,
		    zoom = map.getZoom(),
		    snap = this._map.options.zoomSnap || 0;

		map._stop(); // stop panning and fly animations if any

		// map the delta with a sigmoid function to -4..4 range leaning on -1..1
		var d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),
		    d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,
		    d4 = snap ? Math.ceil(d3 / snap) * snap : d3,
		    delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;

		this._delta = 0;
		this._startTime = null;

		if (!delta) { return; }

		if (map.options.scrollWheelZoom === 'center') {
			map.setZoom(zoom + delta);
		} else {
			map.setZoomAround(this._lastMousePos, zoom + delta);
		}
	}
});

// @section Handlers
// @property scrollWheelZoom: Handler
// Scroll wheel zoom handler.
L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);



/*
 * Extends the event handling code with double tap support for mobile browsers.
 */

L.extend(L.DomEvent, {

	_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
	_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',

	// inspired by Zepto touch code by Thomas Fuchs
	addDoubleTapListener: function (obj, handler, id) {
		var last, touch,
		    doubleTap = false,
		    delay = 250;

		function onTouchStart(e) {
			var count;

			if (L.Browser.pointer) {
				if ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }
				count = L.DomEvent._pointersCount;
			} else {
				count = e.touches.length;
			}

			if (count > 1) { return; }

			var now = Date.now(),
			    delta = now - (last || now);

			touch = e.touches ? e.touches[0] : e;
			doubleTap = (delta > 0 && delta <= delay);
			last = now;
		}

		function onTouchEnd(e) {
			if (doubleTap && !touch.cancelBubble) {
				if (L.Browser.pointer) {
					if ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }

					// work around .type being readonly with MSPointer* events
					var newTouch = {},
					    prop, i;

					for (i in touch) {
						prop = touch[i];
						newTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;
					}
					touch = newTouch;
				}
				touch.type = 'dblclick';
				handler(touch);
				last = null;
			}
		}

		var pre = '_leaflet_',
		    touchstart = this._touchstart,
		    touchend = this._touchend;

		obj[pre + touchstart + id] = onTouchStart;
		obj[pre + touchend + id] = onTouchEnd;
		obj[pre + 'dblclick' + id] = handler;

		obj.addEventListener(touchstart, onTouchStart, false);
		obj.addEventListener(touchend, onTouchEnd, false);

		// On some platforms (notably, chrome<55 on win10 + touchscreen + mouse),
		// the browser doesn't fire touchend/pointerup events but does fire
		// native dblclicks. See #4127.
		// Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180.
		obj.addEventListener('dblclick', handler, false);

		return this;
	},

	removeDoubleTapListener: function (obj, id) {
		var pre = '_leaflet_',
		    touchstart = obj[pre + this._touchstart + id],
		    touchend = obj[pre + this._touchend + id],
		    dblclick = obj[pre + 'dblclick' + id];

		obj.removeEventListener(this._touchstart, touchstart, false);
		obj.removeEventListener(this._touchend, touchend, false);
		if (!L.Browser.edge) {
			obj.removeEventListener('dblclick', dblclick, false);
		}

		return this;
	}
});



/*
 * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
 */

L.extend(L.DomEvent, {

	POINTER_DOWN:   L.Browser.msPointer ? 'MSPointerDown'   : 'pointerdown',
	POINTER_MOVE:   L.Browser.msPointer ? 'MSPointerMove'   : 'pointermove',
	POINTER_UP:     L.Browser.msPointer ? 'MSPointerUp'     : 'pointerup',
	POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
	TAG_WHITE_LIST: ['INPUT', 'SELECT', 'OPTION'],

	_pointers: {},
	_pointersCount: 0,

	// Provides a touch events wrapper for (ms)pointer events.
	// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890

	addPointerListener: function (obj, type, handler, id) {

		if (type === 'touchstart') {
			this._addPointerStart(obj, handler, id);

		} else if (type === 'touchmove') {
			this._addPointerMove(obj, handler, id);

		} else if (type === 'touchend') {
			this._addPointerEnd(obj, handler, id);
		}

		return this;
	},

	removePointerListener: function (obj, type, id) {
		var handler = obj['_leaflet_' + type + id];

		if (type === 'touchstart') {
			obj.removeEventListener(this.POINTER_DOWN, handler, false);

		} else if (type === 'touchmove') {
			obj.removeEventListener(this.POINTER_MOVE, handler, false);

		} else if (type === 'touchend') {
			obj.removeEventListener(this.POINTER_UP, handler, false);
			obj.removeEventListener(this.POINTER_CANCEL, handler, false);
		}

		return this;
	},

	_addPointerStart: function (obj, handler, id) {
		var onDown = L.bind(function (e) {
			if (e.pointerType !== 'mouse' && e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
				// In IE11, some touch events needs to fire for form controls, or
				// the controls will stop working. We keep a whitelist of tag names that
				// need these events. For other target tags, we prevent default on the event.
				if (this.TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {
					L.DomEvent.preventDefault(e);
				} else {
					return;
				}
			}

			this._handlePointer(e, handler);
		}, this);

		obj['_leaflet_touchstart' + id] = onDown;
		obj.addEventListener(this.POINTER_DOWN, onDown, false);

		// need to keep track of what pointers and how many are active to provide e.touches emulation
		if (!this._pointerDocListener) {
			var pointerUp = L.bind(this._globalPointerUp, this);

			// we listen documentElement as any drags that end by moving the touch off the screen get fired there
			document.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true);
			document.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true);
			document.documentElement.addEventListener(this.POINTER_UP, pointerUp, true);
			document.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true);

			this._pointerDocListener = true;
		}
	},

	_globalPointerDown: function (e) {
		this._pointers[e.pointerId] = e;
		this._pointersCount++;
	},

	_globalPointerMove: function (e) {
		if (this._pointers[e.pointerId]) {
			this._pointers[e.pointerId] = e;
		}
	},

	_globalPointerUp: function (e) {
		delete this._pointers[e.pointerId];
		this._pointersCount--;
	},

	_handlePointer: function (e, handler) {
		e.touches = [];
		for (var i in this._pointers) {
			e.touches.push(this._pointers[i]);
		}
		e.changedTouches = [e];

		handler(e);
	},

	_addPointerMove: function (obj, handler, id) {
		var onMove = L.bind(function (e) {
			// don't fire touch moves when mouse isn't down
			if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }

			this._handlePointer(e, handler);
		}, this);

		obj['_leaflet_touchmove' + id] = onMove;
		obj.addEventListener(this.POINTER_MOVE, onMove, false);
	},

	_addPointerEnd: function (obj, handler, id) {
		var onUp = L.bind(function (e) {
			this._handlePointer(e, handler);
		}, this);

		obj['_leaflet_touchend' + id] = onUp;
		obj.addEventListener(this.POINTER_UP, onUp, false);
		obj.addEventListener(this.POINTER_CANCEL, onUp, false);
	}
});



/*
 * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
 */

// @namespace Map
// @section Interaction Options
L.Map.mergeOptions({
	// @section Touch interaction options
	// @option touchZoom: Boolean|String = *
	// Whether the map can be zoomed by touch-dragging with two fingers. If
	// passed `'center'`, it will zoom to the center of the view regardless of
	// where the touch events (fingers) were. Enabled for touch-capable web
	// browsers except for old Androids.
	touchZoom: L.Browser.touch && !L.Browser.android23,

	// @option bounceAtZoomLimits: Boolean = true
	// Set it to false if you don't want the map to zoom beyond min/max zoom
	// and then bounce back when pinch-zooming.
	bounceAtZoomLimits: true
});

L.Map.TouchZoom = L.Handler.extend({
	addHooks: function () {
		L.DomUtil.addClass(this._map._container, 'leaflet-touch-zoom');
		L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
	},

	removeHooks: function () {
		L.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');
		L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
	},

	_onTouchStart: function (e) {
		var map = this._map;
		if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }

		var p1 = map.mouseEventToContainerPoint(e.touches[0]),
		    p2 = map.mouseEventToContainerPoint(e.touches[1]);

		this._centerPoint = map.getSize()._divideBy(2);
		this._startLatLng = map.containerPointToLatLng(this._centerPoint);
		if (map.options.touchZoom !== 'center') {
			this._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));
		}

		this._startDist = p1.distanceTo(p2);
		this._startZoom = map.getZoom();

		this._moved = false;
		this._zooming = true;

		map._stop();

		L.DomEvent
		    .on(document, 'touchmove', this._onTouchMove, this)
		    .on(document, 'touchend', this._onTouchEnd, this);

		L.DomEvent.preventDefault(e);
	},

	_onTouchMove: function (e) {
		if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }

		var map = this._map,
		    p1 = map.mouseEventToContainerPoint(e.touches[0]),
		    p2 = map.mouseEventToContainerPoint(e.touches[1]),
		    scale = p1.distanceTo(p2) / this._startDist;


		this._zoom = map.getScaleZoom(scale, this._startZoom);

		if (!map.options.bounceAtZoomLimits && (
			(this._zoom < map.getMinZoom() && scale < 1) ||
			(this._zoom > map.getMaxZoom() && scale > 1))) {
			this._zoom = map._limitZoom(this._zoom);
		}

		if (map.options.touchZoom === 'center') {
			this._center = this._startLatLng;
			if (scale === 1) { return; }
		} else {
			// Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng
			var delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);
			if (scale === 1 && delta.x === 0 && delta.y === 0) { return; }
			this._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);
		}

		if (!this._moved) {
			map._moveStart(true);
			this._moved = true;
		}

		L.Util.cancelAnimFrame(this._animRequest);

		var moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});
		this._animRequest = L.Util.requestAnimFrame(moveFn, this, true);

		L.DomEvent.preventDefault(e);
	},

	_onTouchEnd: function () {
		if (!this._moved || !this._zooming) {
			this._zooming = false;
			return;
		}

		this._zooming = false;
		L.Util.cancelAnimFrame(this._animRequest);

		L.DomEvent
		    .off(document, 'touchmove', this._onTouchMove)
		    .off(document, 'touchend', this._onTouchEnd);

		// Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.
		if (this._map.options.zoomAnimation) {
			this._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);
		} else {
			this._map._resetView(this._center, this._map._limitZoom(this._zoom));
		}
	}
});

// @section Handlers
// @property touchZoom: Handler
// Touch zoom handler.
L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);



/*
 * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
 */

// @namespace Map
// @section Interaction Options
L.Map.mergeOptions({
	// @section Touch interaction options
	// @option tap: Boolean = true
	// Enables mobile hacks for supporting instant taps (fixing 200ms click
	// delay on iOS/Android) and touch holds (fired as `contextmenu` events).
	tap: true,

	// @option tapTolerance: Number = 15
	// The max number of pixels a user can shift his finger during touch
	// for it to be considered a valid tap.
	tapTolerance: 15
});

L.Map.Tap = L.Handler.extend({
	addHooks: function () {
		L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
	},

	removeHooks: function () {
		L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
	},

	_onDown: function (e) {
		if (!e.touches) { return; }

		L.DomEvent.preventDefault(e);

		this._fireClick = true;

		// don't simulate click or track longpress if more than 1 touch
		if (e.touches.length > 1) {
			this._fireClick = false;
			clearTimeout(this._holdTimeout);
			return;
		}

		var first = e.touches[0],
		    el = first.target;

		this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);

		// if touching a link, highlight it
		if (el.tagName && el.tagName.toLowerCase() === 'a') {
			L.DomUtil.addClass(el, 'leaflet-active');
		}

		// simulate long hold but setting a timeout
		this._holdTimeout = setTimeout(L.bind(function () {
			if (this._isTapValid()) {
				this._fireClick = false;
				this._onUp();
				this._simulateEvent('contextmenu', first);
			}
		}, this), 1000);

		this._simulateEvent('mousedown', first);

		L.DomEvent.on(document, {
			touchmove: this._onMove,
			touchend: this._onUp
		}, this);
	},

	_onUp: function (e) {
		clearTimeout(this._holdTimeout);

		L.DomEvent.off(document, {
			touchmove: this._onMove,
			touchend: this._onUp
		}, this);

		if (this._fireClick && e && e.changedTouches) {

			var first = e.changedTouches[0],
			    el = first.target;

			if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
				L.DomUtil.removeClass(el, 'leaflet-active');
			}

			this._simulateEvent('mouseup', first);

			// simulate click if the touch didn't move too much
			if (this._isTapValid()) {
				this._simulateEvent('click', first);
			}
		}
	},

	_isTapValid: function () {
		return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
	},

	_onMove: function (e) {
		var first = e.touches[0];
		this._newPos = new L.Point(first.clientX, first.clientY);
		this._simulateEvent('mousemove', first);
	},

	_simulateEvent: function (type, e) {
		var simulatedEvent = document.createEvent('MouseEvents');

		simulatedEvent._simulated = true;
		e.target._simulatedClick = true;

		simulatedEvent.initMouseEvent(
		        type, true, true, window, 1,
		        e.screenX, e.screenY,
		        e.clientX, e.clientY,
		        false, false, false, false, 0, null);

		e.target.dispatchEvent(simulatedEvent);
	}
});

// @section Handlers
// @property tap: Handler
// Mobile touch hacks (quick tap and touch hold) handler.
if (L.Browser.touch && !L.Browser.pointer) {
	L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
}



/*
 * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map
 * (zoom to a selected bounding box), enabled by default.
 */

// @namespace Map
// @section Interaction Options
L.Map.mergeOptions({
	// @option boxZoom: Boolean = true
	// Whether the map can be zoomed to a rectangular area specified by
	// dragging the mouse while pressing the shift key.
	boxZoom: true
});

L.Map.BoxZoom = L.Handler.extend({
	initialize: function (map) {
		this._map = map;
		this._container = map._container;
		this._pane = map._panes.overlayPane;
	},

	addHooks: function () {
		L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
	},

	removeHooks: function () {
		L.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);
	},

	moved: function () {
		return this._moved;
	},

	_resetState: function () {
		this._moved = false;
	},

	_onMouseDown: function (e) {
		if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }

		this._resetState();

		L.DomUtil.disableTextSelection();
		L.DomUtil.disableImageDrag();

		this._startPoint = this._map.mouseEventToContainerPoint(e);

		L.DomEvent.on(document, {
			contextmenu: L.DomEvent.stop,
			mousemove: this._onMouseMove,
			mouseup: this._onMouseUp,
			keydown: this._onKeyDown
		}, this);
	},

	_onMouseMove: function (e) {
		if (!this._moved) {
			this._moved = true;

			this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);
			L.DomUtil.addClass(this._container, 'leaflet-crosshair');

			this._map.fire('boxzoomstart');
		}

		this._point = this._map.mouseEventToContainerPoint(e);

		var bounds = new L.Bounds(this._point, this._startPoint),
		    size = bounds.getSize();

		L.DomUtil.setPosition(this._box, bounds.min);

		this._box.style.width  = size.x + 'px';
		this._box.style.height = size.y + 'px';
	},

	_finish: function () {
		if (this._moved) {
			L.DomUtil.remove(this._box);
			L.DomUtil.removeClass(this._container, 'leaflet-crosshair');
		}

		L.DomUtil.enableTextSelection();
		L.DomUtil.enableImageDrag();

		L.DomEvent.off(document, {
			contextmenu: L.DomEvent.stop,
			mousemove: this._onMouseMove,
			mouseup: this._onMouseUp,
			keydown: this._onKeyDown
		}, this);
	},

	_onMouseUp: function (e) {
		if ((e.which !== 1) && (e.button !== 1)) { return; }

		this._finish();

		if (!this._moved) { return; }
		// Postpone to next JS tick so internal click event handling
		// still see it as "moved".
		setTimeout(L.bind(this._resetState, this), 0);

		var bounds = new L.LatLngBounds(
		        this._map.containerPointToLatLng(this._startPoint),
		        this._map.containerPointToLatLng(this._point));

		this._map
			.fitBounds(bounds)
			.fire('boxzoomend', {boxZoomBounds: bounds});
	},

	_onKeyDown: function (e) {
		if (e.keyCode === 27) {
			this._finish();
		}
	}
});

// @section Handlers
// @property boxZoom: Handler
// Box (shift-drag with mouse) zoom handler.
L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);



/*
 * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
 */

// @namespace Map
// @section Keyboard Navigation Options
L.Map.mergeOptions({
	// @option keyboard: Boolean = true
	// Makes the map focusable and allows users to navigate the map with keyboard
	// arrows and `+`/`-` keys.
	keyboard: true,

	// @option keyboardPanDelta: Number = 80
	// Amount of pixels to pan when pressing an arrow key.
	keyboardPanDelta: 80
});

L.Map.Keyboard = L.Handler.extend({

	keyCodes: {
		left:    [37],
		right:   [39],
		down:    [40],
		up:      [38],
		zoomIn:  [187, 107, 61, 171],
		zoomOut: [189, 109, 54, 173]
	},

	initialize: function (map) {
		this._map = map;

		this._setPanDelta(map.options.keyboardPanDelta);
		this._setZoomDelta(map.options.zoomDelta);
	},

	addHooks: function () {
		var container = this._map._container;

		// make the container focusable by tabbing
		if (container.tabIndex <= 0) {
			container.tabIndex = '0';
		}

		L.DomEvent.on(container, {
			focus: this._onFocus,
			blur: this._onBlur,
			mousedown: this._onMouseDown
		}, this);

		this._map.on({
			focus: this._addHooks,
			blur: this._removeHooks
		}, this);
	},

	removeHooks: function () {
		this._removeHooks();

		L.DomEvent.off(this._map._container, {
			focus: this._onFocus,
			blur: this._onBlur,
			mousedown: this._onMouseDown
		}, this);

		this._map.off({
			focus: this._addHooks,
			blur: this._removeHooks
		}, this);
	},

	_onMouseDown: function () {
		if (this._focused) { return; }

		var body = document.body,
		    docEl = document.documentElement,
		    top = body.scrollTop || docEl.scrollTop,
		    left = body.scrollLeft || docEl.scrollLeft;

		this._map._container.focus();

		window.scrollTo(left, top);
	},

	_onFocus: function () {
		this._focused = true;
		this._map.fire('focus');
	},

	_onBlur: function () {
		this._focused = false;
		this._map.fire('blur');
	},

	_setPanDelta: function (panDelta) {
		var keys = this._panKeys = {},
		    codes = this.keyCodes,
		    i, len;

		for (i = 0, len = codes.left.length; i < len; i++) {
			keys[codes.left[i]] = [-1 * panDelta, 0];
		}
		for (i = 0, len = codes.right.length; i < len; i++) {
			keys[codes.right[i]] = [panDelta, 0];
		}
		for (i = 0, len = codes.down.length; i < len; i++) {
			keys[codes.down[i]] = [0, panDelta];
		}
		for (i = 0, len = codes.up.length; i < len; i++) {
			keys[codes.up[i]] = [0, -1 * panDelta];
		}
	},

	_setZoomDelta: function (zoomDelta) {
		var keys = this._zoomKeys = {},
		    codes = this.keyCodes,
		    i, len;

		for (i = 0, len = codes.zoomIn.length; i < len; i++) {
			keys[codes.zoomIn[i]] = zoomDelta;
		}
		for (i = 0, len = codes.zoomOut.length; i < len; i++) {
			keys[codes.zoomOut[i]] = -zoomDelta;
		}
	},

	_addHooks: function () {
		L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
	},

	_removeHooks: function () {
		L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
	},

	_onKeyDown: function (e) {
		if (e.altKey || e.ctrlKey || e.metaKey) { return; }

		var key = e.keyCode,
		    map = this._map,
		    offset;

		if (key in this._panKeys) {

			if (map._panAnim && map._panAnim._inProgress) { return; }

			offset = this._panKeys[key];
			if (e.shiftKey) {
				offset = L.point(offset).multiplyBy(3);
			}

			map.panBy(offset);

			if (map.options.maxBounds) {
				map.panInsideBounds(map.options.maxBounds);
			}

		} else if (key in this._zoomKeys) {
			map.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);

		} else if (key === 27) {
			map.closePopup();

		} else {
			return;
		}

		L.DomEvent.stop(e);
	}
});

// @section Handlers
// @section Handlers
// @property keyboard: Handler
// Keyboard navigation handler.
L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);



/*
 * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
 */


/* @namespace Marker
 * @section Interaction handlers
 *
 * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:
 *
 * ```js
 * marker.dragging.disable();
 * ```
 *
 * @property dragging: Handler
 * Marker dragging handler (by both mouse and touch).
 */

L.Handler.MarkerDrag = L.Handler.extend({
	initialize: function (marker) {
		this._marker = marker;
	},

	addHooks: function () {
		var icon = this._marker._icon;

		if (!this._draggable) {
			this._draggable = new L.Draggable(icon, icon, true);
		}

		this._draggable.on({
			dragstart: this._onDragStart,
			drag: this._onDrag,
			dragend: this._onDragEnd
		}, this).enable();

		L.DomUtil.addClass(icon, 'leaflet-marker-draggable');
	},

	removeHooks: function () {
		this._draggable.off({
			dragstart: this._onDragStart,
			drag: this._onDrag,
			dragend: this._onDragEnd
		}, this).disable();

		if (this._marker._icon) {
			L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
		}
	},

	moved: function () {
		return this._draggable && this._draggable._moved;
	},

	_onDragStart: function () {
		// @section Dragging events
		// @event dragstart: Event
		// Fired when the user starts dragging the marker.

		// @event movestart: Event
		// Fired when the marker starts moving (because of dragging).

		this._oldLatLng = this._marker.getLatLng();
		this._marker
		    .closePopup()
		    .fire('movestart')
		    .fire('dragstart');
	},

	_onDrag: function (e) {
		var marker = this._marker,
		    shadow = marker._shadow,
		    iconPos = L.DomUtil.getPosition(marker._icon),
		    latlng = marker._map.layerPointToLatLng(iconPos);

		// update shadow position
		if (shadow) {
			L.DomUtil.setPosition(shadow, iconPos);
		}

		marker._latlng = latlng;
		e.latlng = latlng;
		e.oldLatLng = this._oldLatLng;

		// @event drag: Event
		// Fired repeatedly while the user drags the marker.
		marker
		    .fire('move', e)
		    .fire('drag', e);
	},

	_onDragEnd: function (e) {
		// @event dragend: DragEndEvent
		// Fired when the user stops dragging the marker.

		// @event moveend: Event
		// Fired when the marker stops moving (because of dragging).
		delete this._oldLatLng;
		this._marker
		    .fire('moveend')
		    .fire('dragend', e);
	}
});



/*
 * @class Control
 * @aka L.Control
 * @inherits Class
 *
 * L.Control is a base class for implementing map controls. Handles positioning.
 * All other controls extend from this class.
 */

L.Control = L.Class.extend({
	// @section
	// @aka Control options
	options: {
		// @option position: String = 'topright'
		// The position of the control (one of the map corners). Possible values are `'topleft'`,
		// `'topright'`, `'bottomleft'` or `'bottomright'`
		position: 'topright'
	},

	initialize: function (options) {
		L.setOptions(this, options);
	},

	/* @section
	 * Classes extending L.Control will inherit the following methods:
	 *
	 * @method getPosition: string
	 * Returns the position of the control.
	 */
	getPosition: function () {
		return this.options.position;
	},

	// @method setPosition(position: string): this
	// Sets the position of the control.
	setPosition: function (position) {
		var map = this._map;

		if (map) {
			map.removeControl(this);
		}

		this.options.position = position;

		if (map) {
			map.addControl(this);
		}

		return this;
	},

	// @method getContainer: HTMLElement
	// Returns the HTMLElement that contains the control.
	getContainer: function () {
		return this._container;
	},

	// @method addTo(map: Map): this
	// Adds the control to the given map.
	addTo: function (map) {
		this.remove();
		this._map = map;

		var container = this._container = this.onAdd(map),
		    pos = this.getPosition(),
		    corner = map._controlCorners[pos];

		L.DomUtil.addClass(container, 'leaflet-control');

		if (pos.indexOf('bottom') !== -1) {
			corner.insertBefore(container, corner.firstChild);
		} else {
			corner.appendChild(container);
		}

		return this;
	},

	// @method remove: this
	// Removes the control from the map it is currently active on.
	remove: function () {
		if (!this._map) {
			return this;
		}

		L.DomUtil.remove(this._container);

		if (this.onRemove) {
			this.onRemove(this._map);
		}

		this._map = null;

		return this;
	},

	_refocusOnMap: function (e) {
		// if map exists and event is not a keyboard event
		if (this._map && e && e.screenX > 0 && e.screenY > 0) {
			this._map.getContainer().focus();
		}
	}
});

L.control = function (options) {
	return new L.Control(options);
};

/* @section Extension methods
 * @uninheritable
 *
 * Every control should extend from `L.Control` and (re-)implement the following methods.
 *
 * @method onAdd(map: Map): HTMLElement
 * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).
 *
 * @method onRemove(map: Map)
 * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).
 */

/* @namespace Map
 * @section Methods for Layers and Controls
 */
L.Map.include({
	// @method addControl(control: Control): this
	// Adds the given control to the map
	addControl: function (control) {
		control.addTo(this);
		return this;
	},

	// @method removeControl(control: Control): this
	// Removes the given control from the map
	removeControl: function (control) {
		control.remove();
		return this;
	},

	_initControlPos: function () {
		var corners = this._controlCorners = {},
		    l = 'leaflet-',
		    container = this._controlContainer =
		            L.DomUtil.create('div', l + 'control-container', this._container);

		function createCorner(vSide, hSide) {
			var className = l + vSide + ' ' + l + hSide;

			corners[vSide + hSide] = L.DomUtil.create('div', className, container);
		}

		createCorner('top', 'left');
		createCorner('top', 'right');
		createCorner('bottom', 'left');
		createCorner('bottom', 'right');
	},

	_clearControlPos: function () {
		L.DomUtil.remove(this._controlContainer);
	}
});



/*
 * @class Control.Zoom
 * @aka L.Control.Zoom
 * @inherits Control
 *
 * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.
 */

L.Control.Zoom = L.Control.extend({
	// @section
	// @aka Control.Zoom options
	options: {
		position: 'topleft',

		// @option zoomInText: String = '+'
		// The text set on the 'zoom in' button.
		zoomInText: '+',

		// @option zoomInTitle: String = 'Zoom in'
		// The title set on the 'zoom in' button.
		zoomInTitle: 'Zoom in',

		// @option zoomOutText: String = '-'
		// The text set on the 'zoom out' button.
		zoomOutText: '-',

		// @option zoomOutTitle: String = 'Zoom out'
		// The title set on the 'zoom out' button.
		zoomOutTitle: 'Zoom out'
	},

	onAdd: function (map) {
		var zoomName = 'leaflet-control-zoom',
		    container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),
		    options = this.options;

		this._zoomInButton  = this._createButton(options.zoomInText, options.zoomInTitle,
		        zoomName + '-in',  container, this._zoomIn);
		this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,
		        zoomName + '-out', container, this._zoomOut);

		this._updateDisabled();
		map.on('zoomend zoomlevelschange', this._updateDisabled, this);

		return container;
	},

	onRemove: function (map) {
		map.off('zoomend zoomlevelschange', this._updateDisabled, this);
	},

	disable: function () {
		this._disabled = true;
		this._updateDisabled();
		return this;
	},

	enable: function () {
		this._disabled = false;
		this._updateDisabled();
		return this;
	},

	_zoomIn: function (e) {
		if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {
			this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
		}
	},

	_zoomOut: function (e) {
		if (!this._disabled && this._map._zoom > this._map.getMinZoom()) {
			this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
		}
	},

	_createButton: function (html, title, className, container, fn) {
		var link = L.DomUtil.create('a', className, container);
		link.innerHTML = html;
		link.href = '#';
		link.title = title;

		/*
		 * Will force screen readers like VoiceOver to read this as "Zoom in - button"
		 */
		link.setAttribute('role', 'button');
		link.setAttribute('aria-label', title);

		L.DomEvent
		    .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)
		    .on(link, 'click', L.DomEvent.stop)
		    .on(link, 'click', fn, this)
		    .on(link, 'click', this._refocusOnMap, this);

		return link;
	},

	_updateDisabled: function () {
		var map = this._map,
		    className = 'leaflet-disabled';

		L.DomUtil.removeClass(this._zoomInButton, className);
		L.DomUtil.removeClass(this._zoomOutButton, className);

		if (this._disabled || map._zoom === map.getMinZoom()) {
			L.DomUtil.addClass(this._zoomOutButton, className);
		}
		if (this._disabled || map._zoom === map.getMaxZoom()) {
			L.DomUtil.addClass(this._zoomInButton, className);
		}
	}
});

// @namespace Map
// @section Control options
// @option zoomControl: Boolean = true
// Whether a [zoom control](#control-zoom) is added to the map by default.
L.Map.mergeOptions({
	zoomControl: true
});

L.Map.addInitHook(function () {
	if (this.options.zoomControl) {
		this.zoomControl = new L.Control.Zoom();
		this.addControl(this.zoomControl);
	}
});

// @namespace Control.Zoom
// @factory L.control.zoom(options: Control.Zoom options)
// Creates a zoom control
L.control.zoom = function (options) {
	return new L.Control.Zoom(options);
};



/*
 * @class Control.Attribution
 * @aka L.Control.Attribution
 * @inherits Control
 *
 * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.
 */

L.Control.Attribution = L.Control.extend({
	// @section
	// @aka Control.Attribution options
	options: {
		position: 'bottomright',

		// @option prefix: String = 'Leaflet'
		// The HTML text shown before the attributions. Pass `false` to disable.
		prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
	},

	initialize: function (options) {
		L.setOptions(this, options);

		this._attributions = {};
	},

	onAdd: function (map) {
		map.attributionControl = this;
		this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
		if (L.DomEvent) {
			L.DomEvent.disableClickPropagation(this._container);
		}

		// TODO ugly, refactor
		for (var i in map._layers) {
			if (map._layers[i].getAttribution) {
				this.addAttribution(map._layers[i].getAttribution());
			}
		}

		this._update();

		return this._container;
	},

	// @method setPrefix(prefix: String): this
	// Sets the text before the attributions.
	setPrefix: function (prefix) {
		this.options.prefix = prefix;
		this._update();
		return this;
	},

	// @method addAttribution(text: String): this
	// Adds an attribution text (e.g. `'Vector data &copy; Mapbox'`).
	addAttribution: function (text) {
		if (!text) { return this; }

		if (!this._attributions[text]) {
			this._attributions[text] = 0;
		}
		this._attributions[text]++;

		this._update();

		return this;
	},

	// @method removeAttribution(text: String): this
	// Removes an attribution text.
	removeAttribution: function (text) {
		if (!text) { return this; }

		if (this._attributions[text]) {
			this._attributions[text]--;
			this._update();
		}

		return this;
	},

	_update: function () {
		if (!this._map) { return; }

		var attribs = [];

		for (var i in this._attributions) {
			if (this._attributions[i]) {
				attribs.push(i);
			}
		}

		var prefixAndAttribs = [];

		if (this.options.prefix) {
			prefixAndAttribs.push(this.options.prefix);
		}
		if (attribs.length) {
			prefixAndAttribs.push(attribs.join(', '));
		}

		this._container.innerHTML = prefixAndAttribs.join(' | ');
	}
});

// @namespace Map
// @section Control options
// @option attributionControl: Boolean = true
// Whether a [attribution control](#control-attribution) is added to the map by default.
L.Map.mergeOptions({
	attributionControl: true
});

L.Map.addInitHook(function () {
	if (this.options.attributionControl) {
		new L.Control.Attribution().addTo(this);
	}
});

// @namespace Control.Attribution
// @factory L.control.attribution(options: Control.Attribution options)
// Creates an attribution control.
L.control.attribution = function (options) {
	return new L.Control.Attribution(options);
};



/*
 * @class Control.Scale
 * @aka L.Control.Scale
 * @inherits Control
 *
 * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.
 *
 * @example
 *
 * ```js
 * L.control.scale().addTo(map);
 * ```
 */

L.Control.Scale = L.Control.extend({
	// @section
	// @aka Control.Scale options
	options: {
		position: 'bottomleft',

		// @option maxWidth: Number = 100
		// Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).
		maxWidth: 100,

		// @option metric: Boolean = True
		// Whether to show the metric scale line (m/km).
		metric: true,

		// @option imperial: Boolean = True
		// Whether to show the imperial scale line (mi/ft).
		imperial: true

		// @option updateWhenIdle: Boolean = false
		// If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).
	},

	onAdd: function (map) {
		var className = 'leaflet-control-scale',
		    container = L.DomUtil.create('div', className),
		    options = this.options;

		this._addScales(options, className + '-line', container);

		map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
		map.whenReady(this._update, this);

		return container;
	},

	onRemove: function (map) {
		map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
	},

	_addScales: function (options, className, container) {
		if (options.metric) {
			this._mScale = L.DomUtil.create('div', className, container);
		}
		if (options.imperial) {
			this._iScale = L.DomUtil.create('div', className, container);
		}
	},

	_update: function () {
		var map = this._map,
		    y = map.getSize().y / 2;

		var maxMeters = map.distance(
				map.containerPointToLatLng([0, y]),
				map.containerPointToLatLng([this.options.maxWidth, y]));

		this._updateScales(maxMeters);
	},

	_updateScales: function (maxMeters) {
		if (this.options.metric && maxMeters) {
			this._updateMetric(maxMeters);
		}
		if (this.options.imperial && maxMeters) {
			this._updateImperial(maxMeters);
		}
	},

	_updateMetric: function (maxMeters) {
		var meters = this._getRoundNum(maxMeters),
		    label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';

		this._updateScale(this._mScale, label, meters / maxMeters);
	},

	_updateImperial: function (maxMeters) {
		var maxFeet = maxMeters * 3.2808399,
		    maxMiles, miles, feet;

		if (maxFeet > 5280) {
			maxMiles = maxFeet / 5280;
			miles = this._getRoundNum(maxMiles);
			this._updateScale(this._iScale, miles + ' mi', miles / maxMiles);

		} else {
			feet = this._getRoundNum(maxFeet);
			this._updateScale(this._iScale, feet + ' ft', feet / maxFeet);
		}
	},

	_updateScale: function (scale, text, ratio) {
		scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';
		scale.innerHTML = text;
	},

	_getRoundNum: function (num) {
		var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
		    d = num / pow10;

		d = d >= 10 ? 10 :
		    d >= 5 ? 5 :
		    d >= 3 ? 3 :
		    d >= 2 ? 2 : 1;

		return pow10 * d;
	}
});


// @factory L.control.scale(options?: Control.Scale options)
// Creates an scale control with the given options.
L.control.scale = function (options) {
	return new L.Control.Scale(options);
};



/*
 * @class Control.Layers
 * @aka L.Control.Layers
 * @inherits Control
 *
 * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control.html)). Extends `Control`.
 *
 * @example
 *
 * ```js
 * var baseLayers = {
 * 	"Mapbox": mapbox,
 * 	"OpenStreetMap": osm
 * };
 *
 * var overlays = {
 * 	"Marker": marker,
 * 	"Roads": roadsLayer
 * };
 *
 * L.control.layers(baseLayers, overlays).addTo(map);
 * ```
 *
 * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:
 *
 * ```js
 * {
 *     "<someName1>": layer1,
 *     "<someName2>": layer2
 * }
 * ```
 *
 * The layer names can contain HTML, which allows you to add additional styling to the items:
 *
 * ```js
 * {"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>": myLayer}
 * ```
 */


L.Control.Layers = L.Control.extend({
	// @section
	// @aka Control.Layers options
	options: {
		// @option collapsed: Boolean = true
		// If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.
		collapsed: true,
		position: 'topright',

		// @option autoZIndex: Boolean = true
		// If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.
		autoZIndex: true,

		// @option hideSingleBase: Boolean = false
		// If `true`, the base layers in the control will be hidden when there is only one.
		hideSingleBase: false,

		// @option sortLayers: Boolean = false
		// Whether to sort the layers. When `false`, layers will keep the order
		// in which they were added to the control.
		sortLayers: false,

		// @option sortFunction: Function = *
		// A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)
		// that will be used for sorting the layers, when `sortLayers` is `true`.
		// The function receives both the `L.Layer` instances and their names, as in
		// `sortFunction(layerA, layerB, nameA, nameB)`.
		// By default, it sorts layers alphabetically by their name.
		sortFunction: function (layerA, layerB, nameA, nameB) {
			return nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);
		}
	},

	initialize: function (baseLayers, overlays, options) {
		L.setOptions(this, options);

		this._layers = [];
		this._lastZIndex = 0;
		this._handlingClick = false;

		for (var i in baseLayers) {
			this._addLayer(baseLayers[i], i);
		}

		for (i in overlays) {
			this._addLayer(overlays[i], i, true);
		}
	},

	onAdd: function (map) {
		this._initLayout();
		this._update();

		this._map = map;
		map.on('zoomend', this._checkDisabledLayers, this);

		return this._container;
	},

	onRemove: function () {
		this._map.off('zoomend', this._checkDisabledLayers, this);

		for (var i = 0; i < this._layers.length; i++) {
			this._layers[i].layer.off('add remove', this._onLayerChange, this);
		}
	},

	// @method addBaseLayer(layer: Layer, name: String): this
	// Adds a base layer (radio button entry) with the given name to the control.
	addBaseLayer: function (layer, name) {
		this._addLayer(layer, name);
		return (this._map) ? this._update() : this;
	},

	// @method addOverlay(layer: Layer, name: String): this
	// Adds an overlay (checkbox entry) with the given name to the control.
	addOverlay: function (layer, name) {
		this._addLayer(layer, name, true);
		return (this._map) ? this._update() : this;
	},

	// @method removeLayer(layer: Layer): this
	// Remove the given layer from the control.
	removeLayer: function (layer) {
		layer.off('add remove', this._onLayerChange, this);

		var obj = this._getLayer(L.stamp(layer));
		if (obj) {
			this._layers.splice(this._layers.indexOf(obj), 1);
		}
		return (this._map) ? this._update() : this;
	},

	// @method expand(): this
	// Expand the control container if collapsed.
	expand: function () {
		L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
		this._form.style.height = null;
		var acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);
		if (acceptableHeight < this._form.clientHeight) {
			L.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar');
			this._form.style.height = acceptableHeight + 'px';
		} else {
			L.DomUtil.removeClass(this._form, 'leaflet-control-layers-scrollbar');
		}
		this._checkDisabledLayers();
		return this;
	},

	// @method collapse(): this
	// Collapse the control container if expanded.
	collapse: function () {
		L.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');
		return this;
	},

	_initLayout: function () {
		var className = 'leaflet-control-layers',
		    container = this._container = L.DomUtil.create('div', className),
		    collapsed = this.options.collapsed;

		// makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released
		container.setAttribute('aria-haspopup', true);

		L.DomEvent.disableClickPropagation(container);
		if (!L.Browser.touch) {
			L.DomEvent.disableScrollPropagation(container);
		}

		var form = this._form = L.DomUtil.create('form', className + '-list');

		if (collapsed) {
			this._map.on('click', this.collapse, this);

			if (!L.Browser.android) {
				L.DomEvent.on(container, {
					mouseenter: this.expand,
					mouseleave: this.collapse
				}, this);
			}
		}

		var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
		link.href = '#';
		link.title = 'Layers';

		if (L.Browser.touch) {
			L.DomEvent
			    .on(link, 'click', L.DomEvent.stop)
			    .on(link, 'click', this.expand, this);
		} else {
			L.DomEvent.on(link, 'focus', this.expand, this);
		}

		// work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033
		L.DomEvent.on(form, 'click', function () {
			setTimeout(L.bind(this._onInputClick, this), 0);
		}, this);

		// TODO keyboard accessibility

		if (!collapsed) {
			this.expand();
		}

		this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
		this._separator = L.DomUtil.create('div', className + '-separator', form);
		this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);

		container.appendChild(form);
	},

	_getLayer: function (id) {
		for (var i = 0; i < this._layers.length; i++) {

			if (this._layers[i] && L.stamp(this._layers[i].layer) === id) {
				return this._layers[i];
			}
		}
	},

	_addLayer: function (layer, name, overlay) {
		layer.on('add remove', this._onLayerChange, this);

		this._layers.push({
			layer: layer,
			name: name,
			overlay: overlay
		});

		if (this.options.sortLayers) {
			this._layers.sort(L.bind(function (a, b) {
				return this.options.sortFunction(a.layer, b.layer, a.name, b.name);
			}, this));
		}

		if (this.options.autoZIndex && layer.setZIndex) {
			this._lastZIndex++;
			layer.setZIndex(this._lastZIndex);
		}
	},

	_update: function () {
		if (!this._container) { return this; }

		L.DomUtil.empty(this._baseLayersList);
		L.DomUtil.empty(this._overlaysList);

		var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;

		for (i = 0; i < this._layers.length; i++) {
			obj = this._layers[i];
			this._addItem(obj);
			overlaysPresent = overlaysPresent || obj.overlay;
			baseLayersPresent = baseLayersPresent || !obj.overlay;
			baseLayersCount += !obj.overlay ? 1 : 0;
		}

		// Hide base layers section if there's only one layer.
		if (this.options.hideSingleBase) {
			baseLayersPresent = baseLayersPresent && baseLayersCount > 1;
			this._baseLayersList.style.display = baseLayersPresent ? '' : 'none';
		}

		this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';

		return this;
	},

	_onLayerChange: function (e) {
		if (!this._handlingClick) {
			this._update();
		}

		var obj = this._getLayer(L.stamp(e.target));

		// @namespace Map
		// @section Layer events
		// @event baselayerchange: LayersControlEvent
		// Fired when the base layer is changed through the [layer control](#control-layers).
		// @event overlayadd: LayersControlEvent
		// Fired when an overlay is selected through the [layer control](#control-layers).
		// @event overlayremove: LayersControlEvent
		// Fired when an overlay is deselected through the [layer control](#control-layers).
		// @namespace Control.Layers
		var type = obj.overlay ?
			(e.type === 'add' ? 'overlayadd' : 'overlayremove') :
			(e.type === 'add' ? 'baselayerchange' : null);

		if (type) {
			this._map.fire(type, obj);
		}
	},

	// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
	_createRadioElement: function (name, checked) {

		var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
				name + '"' + (checked ? ' checked="checked"' : '') + '/>';

		var radioFragment = document.createElement('div');
		radioFragment.innerHTML = radioHtml;

		return radioFragment.firstChild;
	},

	_addItem: function (obj) {
		var label = document.createElement('label'),
		    checked = this._map.hasLayer(obj.layer),
		    input;

		if (obj.overlay) {
			input = document.createElement('input');
			input.type = 'checkbox';
			input.className = 'leaflet-control-layers-selector';
			input.defaultChecked = checked;
		} else {
			input = this._createRadioElement('leaflet-base-layers', checked);
		}

		input.layerId = L.stamp(obj.layer);

		L.DomEvent.on(input, 'click', this._onInputClick, this);

		var name = document.createElement('span');
		name.innerHTML = ' ' + obj.name;

		// Helps from preventing layer control flicker when checkboxes are disabled
		// https://github.com/Leaflet/Leaflet/issues/2771
		var holder = document.createElement('div');

		label.appendChild(holder);
		holder.appendChild(input);
		holder.appendChild(name);

		var container = obj.overlay ? this._overlaysList : this._baseLayersList;
		container.appendChild(label);

		this._checkDisabledLayers();
		return label;
	},

	_onInputClick: function () {
		var inputs = this._form.getElementsByTagName('input'),
		    input, layer, hasLayer;
		var addedLayers = [],
		    removedLayers = [];

		this._handlingClick = true;

		for (var i = inputs.length - 1; i >= 0; i--) {
			input = inputs[i];
			layer = this._getLayer(input.layerId).layer;
			hasLayer = this._map.hasLayer(layer);

			if (input.checked && !hasLayer) {
				addedLayers.push(layer);

			} else if (!input.checked && hasLayer) {
				removedLayers.push(layer);
			}
		}

		// Bugfix issue 2318: Should remove all old layers before readding new ones
		for (i = 0; i < removedLayers.length; i++) {
			this._map.removeLayer(removedLayers[i]);
		}
		for (i = 0; i < addedLayers.length; i++) {
			this._map.addLayer(addedLayers[i]);
		}

		this._handlingClick = false;

		this._refocusOnMap();
	},

	_checkDisabledLayers: function () {
		var inputs = this._form.getElementsByTagName('input'),
		    input,
		    layer,
		    zoom = this._map.getZoom();

		for (var i = inputs.length - 1; i >= 0; i--) {
			input = inputs[i];
			layer = this._getLayer(input.layerId).layer;
			input.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||
			                 (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);

		}
	},

	_expand: function () {
		// Backward compatibility, remove me in 1.1.
		return this.expand();
	},

	_collapse: function () {
		// Backward compatibility, remove me in 1.1.
		return this.collapse();
	}

});


// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)
// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.
L.control.layers = function (baseLayers, overlays, options) {
	return new L.Control.Layers(baseLayers, overlays, options);
};



}(window, document));
/*
 Leaflet.markercluster, Provides Beautiful Animated Marker Clustering functionality for Leaflet, a JS library for interactive maps.
 https://github.com/Leaflet/Leaflet.markercluster
 (c) 2012-2013, Dave Leaver, smartrak
*/

(function (window, document, undefined) {/*
 * L.MarkerClusterGroup extends L.FeatureGroup by clustering the markers contained within
 */

L.MarkerClusterGroup = L.FeatureGroup.extend({

	options: {
		maxClusterRadius: 80, //A cluster will cover at most this many pixels from its center
		iconCreateFunction: null,

		spiderfyOnMaxZoom: true,
		showCoverageOnHover: true,
		zoomToBoundsOnClick: true,
		singleMarkerMode: false,

		disableClusteringAtZoom: null,

		// Setting this to false prevents the removal of any clusters outside of the viewpoint, which
		// is the default behaviour for performance reasons.
		removeOutsideVisibleBounds: true,

		// Set to false to disable all animations (zoom and spiderfy).
		// If false, option animateAddingMarkers below has no effect.
		// If L.DomUtil.TRANSITION is falsy, this option has no effect.
		animate: true,

		//Whether to animate adding markers after adding the MarkerClusterGroup to the map
		// If you are adding individual markers set to true, if adding bulk markers leave false for massive performance gains.
		animateAddingMarkers: false,

		//Increase to increase the distance away that spiderfied markers appear from the center
		spiderfyDistanceMultiplier: 1,

		// Make it possible to specify a polyline options on a spider leg
		spiderLegPolylineOptions: { weight: 1.5, color: '#222', opacity: 0.5 },

		// When bulk adding layers, adds markers in chunks. Means addLayers may not add all the layers in the call, others will be loaded during setTimeouts
		chunkedLoading: false,
		chunkInterval: 200, // process markers for a maximum of ~ n milliseconds (then trigger the chunkProgress callback)
		chunkDelay: 50, // at the end of each interval, give n milliseconds back to system/browser
		chunkProgress: null, // progress callback: function(processed, total, elapsed) (e.g. for a progress indicator)

		//Options to pass to the L.Polygon constructor
		polygonOptions: {}
	},

	initialize: function (options) {
		L.Util.setOptions(this, options);
		if (!this.options.iconCreateFunction) {
			this.options.iconCreateFunction = this._defaultIconCreateFunction;
		}

		this._featureGroup = L.featureGroup();
		this._featureGroup.addEventParent(this);

		this._nonPointGroup = L.featureGroup();
		this._nonPointGroup.addEventParent(this);

		this._inZoomAnimation = 0;
		this._needsClustering = [];
		this._needsRemoving = []; //Markers removed while we aren't on the map need to be kept track of
		//The bounds of the currently shown area (from _getExpandedVisibleBounds) Updated on zoom/move
		this._currentShownBounds = null;

		this._queue = [];

		this._childMarkerEventHandlers = {
			'dragstart': this._childMarkerDragStart,
			'move': this._childMarkerMoved,
			'dragend': this._childMarkerDragEnd,
		};

		// Hook the appropriate animation methods.
		var animate = L.DomUtil.TRANSITION && this.options.animate;
		L.extend(this, animate ? this._withAnimation : this._noAnimation);
		// Remember which MarkerCluster class to instantiate (animated or not).
		this._markerCluster = animate ? L.MarkerCluster : L.MarkerClusterNonAnimated;
	},

	addLayer: function (layer) {

		if (layer instanceof L.LayerGroup) {
			return this.addLayers([layer]);
		}

		//Don't cluster non point data
		if (!layer.getLatLng) {
			this._nonPointGroup.addLayer(layer);
			this.fire('layeradd', { layer: layer });
			return this;
		}

		if (!this._map) {
			this._needsClustering.push(layer);
			this.fire('layeradd', { layer: layer });
			return this;
		}

		if (this.hasLayer(layer)) {
			return this;
		}


		//If we have already clustered we'll need to add this one to a cluster

		if (this._unspiderfy) {
			this._unspiderfy();
		}

		this._addLayer(layer, this._maxZoom);
		this.fire('layeradd', { layer: layer });

		// Refresh bounds and weighted positions.
		this._topClusterLevel._recalculateBounds();

		this._refreshClustersIcons();

		//Work out what is visible
		var visibleLayer = layer,
		    currentZoom = this._zoom;
		if (layer.__parent) {
			while (visibleLayer.__parent._zoom >= currentZoom) {
				visibleLayer = visibleLayer.__parent;
			}
		}

		if (this._currentShownBounds.contains(visibleLayer.getLatLng())) {
			if (this.options.animateAddingMarkers) {
				this._animationAddLayer(layer, visibleLayer);
			} else {
				this._animationAddLayerNonAnimated(layer, visibleLayer);
			}
		}
		return this;
	},

	removeLayer: function (layer) {

		if (layer instanceof L.LayerGroup) {
			return this.removeLayers([layer]);
		}

		//Non point layers
		if (!layer.getLatLng) {
			this._nonPointGroup.removeLayer(layer);
			this.fire('layerremove', { layer: layer });
			return this;
		}

		if (!this._map) {
			if (!this._arraySplice(this._needsClustering, layer) && this.hasLayer(layer)) {
				this._needsRemoving.push({ layer: layer, latlng: layer._latlng });
			}
			this.fire('layerremove', { layer: layer });
			return this;
		}

		if (!layer.__parent) {
			return this;
		}

		if (this._unspiderfy) {
			this._unspiderfy();
			this._unspiderfyLayer(layer);
		}

		//Remove the marker from clusters
		this._removeLayer(layer, true);
		this.fire('layerremove', { layer: layer });

		// Refresh bounds and weighted positions.
		this._topClusterLevel._recalculateBounds();

		this._refreshClustersIcons();

		layer.off(this._childMarkerEventHandlers, this);

		if (this._featureGroup.hasLayer(layer)) {
			this._featureGroup.removeLayer(layer);
			if (layer.clusterShow) {
				layer.clusterShow();
			}
		}

		return this;
	},

	//Takes an array of markers and adds them in bulk
	addLayers: function (layersArray, skipLayerAddEvent) {
		if (!L.Util.isArray(layersArray)) {
			return this.addLayer(layersArray);
		}

		var fg = this._featureGroup,
		    npg = this._nonPointGroup,
		    chunked = this.options.chunkedLoading,
		    chunkInterval = this.options.chunkInterval,
		    chunkProgress = this.options.chunkProgress,
		    l = layersArray.length,
		    offset = 0,
		    originalArray = true,
		    m;

		if (this._map) {
			var started = (new Date()).getTime();
			var process = L.bind(function () {
				var start = (new Date()).getTime();
				for (; offset < l; offset++) {
					if (chunked && offset % 200 === 0) {
						// every couple hundred markers, instrument the time elapsed since processing started:
						var elapsed = (new Date()).getTime() - start;
						if (elapsed > chunkInterval) {
							break; // been working too hard, time to take a break :-)
						}
					}

					m = layersArray[offset];

					// Group of layers, append children to layersArray and skip.
					// Side effects:
					// - Total increases, so chunkProgress ratio jumps backward.
					// - Groups are not included in this group, only their non-group child layers (hasLayer).
					// Changing array length while looping does not affect performance in current browsers:
					// http://jsperf.com/for-loop-changing-length/6
					if (m instanceof L.LayerGroup) {
						if (originalArray) {
							layersArray = layersArray.slice();
							originalArray = false;
						}
						this._extractNonGroupLayers(m, layersArray);
						l = layersArray.length;
						continue;
					}

					//Not point data, can't be clustered
					if (!m.getLatLng) {
						npg.addLayer(m);
						if (!skipLayerAddEvent) {
							this.fire('layeradd', { layer: m });
						}
						continue;
					}

					if (this.hasLayer(m)) {
						continue;
					}

					this._addLayer(m, this._maxZoom);
					if (!skipLayerAddEvent) {
						this.fire('layeradd', { layer: m });
					}

					//If we just made a cluster of size 2 then we need to remove the other marker from the map (if it is) or we never will
					if (m.__parent) {
						if (m.__parent.getChildCount() === 2) {
							var markers = m.__parent.getAllChildMarkers(),
							    otherMarker = markers[0] === m ? markers[1] : markers[0];
							fg.removeLayer(otherMarker);
						}
					}
				}

				if (chunkProgress) {
					// report progress and time elapsed:
					chunkProgress(offset, l, (new Date()).getTime() - started);
				}

				// Completed processing all markers.
				if (offset === l) {

					// Refresh bounds and weighted positions.
					this._topClusterLevel._recalculateBounds();

					this._refreshClustersIcons();

					this._topClusterLevel._recursivelyAddChildrenToMap(null, this._zoom, this._currentShownBounds);
				} else {
					setTimeout(process, this.options.chunkDelay);
				}
			}, this);

			process();
		} else {
			var needsClustering = this._needsClustering;

			for (; offset < l; offset++) {
				m = layersArray[offset];

				// Group of layers, append children to layersArray and skip.
				if (m instanceof L.LayerGroup) {
					if (originalArray) {
						layersArray = layersArray.slice();
						originalArray = false;
					}
					this._extractNonGroupLayers(m, layersArray);
					l = layersArray.length;
					continue;
				}

				//Not point data, can't be clustered
				if (!m.getLatLng) {
					npg.addLayer(m);
					continue;
				}

				if (this.hasLayer(m)) {
					continue;
				}

				needsClustering.push(m);
			}
		}
		return this;
	},

	//Takes an array of markers and removes them in bulk
	removeLayers: function (layersArray) {
		var i, m,
		    l = layersArray.length,
		    fg = this._featureGroup,
		    npg = this._nonPointGroup,
		    originalArray = true;

		if (!this._map) {
			for (i = 0; i < l; i++) {
				m = layersArray[i];

				// Group of layers, append children to layersArray and skip.
				if (m instanceof L.LayerGroup) {
					if (originalArray) {
						layersArray = layersArray.slice();
						originalArray = false;
					}
					this._extractNonGroupLayers(m, layersArray);
					l = layersArray.length;
					continue;
				}

				this._arraySplice(this._needsClustering, m);
				npg.removeLayer(m);
				if (this.hasLayer(m)) {
					this._needsRemoving.push({ layer: m, latlng: m._latlng });
				}
				this.fire('layerremove', { layer: m });
			}
			return this;
		}

		if (this._unspiderfy) {
			this._unspiderfy();

			// Work on a copy of the array, so that next loop is not affected.
			var layersArray2 = layersArray.slice(),
			    l2 = l;
			for (i = 0; i < l2; i++) {
				m = layersArray2[i];

				// Group of layers, append children to layersArray and skip.
				if (m instanceof L.LayerGroup) {
					this._extractNonGroupLayers(m, layersArray2);
					l2 = layersArray2.length;
					continue;
				}

				this._unspiderfyLayer(m);
			}
		}

		for (i = 0; i < l; i++) {
			m = layersArray[i];

			// Group of layers, append children to layersArray and skip.
			if (m instanceof L.LayerGroup) {
				if (originalArray) {
					layersArray = layersArray.slice();
					originalArray = false;
				}
				this._extractNonGroupLayers(m, layersArray);
				l = layersArray.length;
				continue;
			}

			if (!m.__parent) {
				npg.removeLayer(m);
				this.fire('layerremove', { layer: m });
				continue;
			}

			this._removeLayer(m, true, true);
			this.fire('layerremove', { layer: m });

			if (fg.hasLayer(m)) {
				fg.removeLayer(m);
				if (m.clusterShow) {
					m.clusterShow();
				}
			}
		}

		// Refresh bounds and weighted positions.
		this._topClusterLevel._recalculateBounds();

		this._refreshClustersIcons();

		//Fix up the clusters and markers on the map
		this._topClusterLevel._recursivelyAddChildrenToMap(null, this._zoom, this._currentShownBounds);

		return this;
	},

	//Removes all layers from the MarkerClusterGroup
	clearLayers: function () {
		//Need our own special implementation as the LayerGroup one doesn't work for us

		//If we aren't on the map (yet), blow away the markers we know of
		if (!this._map) {
			this._needsClustering = [];
			delete this._gridClusters;
			delete this._gridUnclustered;
		}

		if (this._noanimationUnspiderfy) {
			this._noanimationUnspiderfy();
		}

		//Remove all the visible layers
		this._featureGroup.clearLayers();
		this._nonPointGroup.clearLayers();

		this.eachLayer(function (marker) {
			marker.off(this._childMarkerEventHandlers, this);
			delete marker.__parent;
		}, this);

		if (this._map) {
			//Reset _topClusterLevel and the DistanceGrids
			this._generateInitialClusters();
		}

		return this;
	},

	//Override FeatureGroup.getBounds as it doesn't work
	getBounds: function () {
		var bounds = new L.LatLngBounds();

		if (this._topClusterLevel) {
			bounds.extend(this._topClusterLevel._bounds);
		}

		for (var i = this._needsClustering.length - 1; i >= 0; i--) {
			bounds.extend(this._needsClustering[i].getLatLng());
		}

		bounds.extend(this._nonPointGroup.getBounds());

		return bounds;
	},

	//Overrides LayerGroup.eachLayer
	eachLayer: function (method, context) {
		var markers = this._needsClustering.slice(),
			needsRemoving = this._needsRemoving,
			thisNeedsRemoving, i, j;

		if (this._topClusterLevel) {
			this._topClusterLevel.getAllChildMarkers(markers);
		}

		for (i = markers.length - 1; i >= 0; i--) {
			thisNeedsRemoving = true;

			for (j = needsRemoving.length - 1; j >= 0; j--) {
				if (needsRemoving[j].layer === markers[i]) {
					thisNeedsRemoving = false;
					break;
				}
			}

			if (thisNeedsRemoving) {
				method.call(context, markers[i]);
			}
		}

		this._nonPointGroup.eachLayer(method, context);
	},

	//Overrides LayerGroup.getLayers
	getLayers: function () {
		var layers = [];
		this.eachLayer(function (l) {
			layers.push(l);
		});
		return layers;
	},

	//Overrides LayerGroup.getLayer, WARNING: Really bad performance
	getLayer: function (id) {
		var result = null;
		
		id = parseInt(id, 10);

		this.eachLayer(function (l) {
			if (L.stamp(l) === id) {
				result = l;
			}
		});

		return result;
	},

	//Returns true if the given layer is in this MarkerClusterGroup
	hasLayer: function (layer) {
		if (!layer) {
			return false;
		}

		var i, anArray = this._needsClustering;

		for (i = anArray.length - 1; i >= 0; i--) {
			if (anArray[i] === layer) {
				return true;
			}
		}

		anArray = this._needsRemoving;
		for (i = anArray.length - 1; i >= 0; i--) {
			if (anArray[i].layer === layer) {
				return false;
			}
		}

		return !!(layer.__parent && layer.__parent._group === this) || this._nonPointGroup.hasLayer(layer);
	},

	//Zoom down to show the given layer (spiderfying if necessary) then calls the callback
	zoomToShowLayer: function (layer, callback) {

		if (typeof callback !== 'function') {
			callback = function () {};
		}

		var showMarker = function () {
			if ((layer._icon || layer.__parent._icon) && !this._inZoomAnimation) {
				this._map.off('moveend', showMarker, this);
				this.off('animationend', showMarker, this);

				if (layer._icon) {
					callback();
				} else if (layer.__parent._icon) {
					this.once('spiderfied', callback, this);
					layer.__parent.spiderfy();
				}
			}
		};

		if (layer._icon && this._map.getBounds().contains(layer.getLatLng())) {
			//Layer is visible ond on screen, immediate return
			callback();
		} else if (layer.__parent._zoom < Math.round(this._map._zoom)) {
			//Layer should be visible at this zoom level. It must not be on screen so just pan over to it
			this._map.on('moveend', showMarker, this);
			this._map.panTo(layer.getLatLng());
		} else {
			this._map.on('moveend', showMarker, this);
			this.on('animationend', showMarker, this);
			layer.__parent.zoomToBounds();
		}
	},

	//Overrides FeatureGroup.onAdd
	onAdd: function (map) {
		this._map = map;
		var i, l, layer;

		if (!isFinite(this._map.getMaxZoom())) {
			throw "Map has no maxZoom specified";
		}

		this._featureGroup.addTo(map);
		this._nonPointGroup.addTo(map);

		if (!this._gridClusters) {
			this._generateInitialClusters();
		}

		this._maxLat = map.options.crs.projection.MAX_LATITUDE;

		//Restore all the positions as they are in the MCG before removing them
		for (i = 0, l = this._needsRemoving.length; i < l; i++) {
			layer = this._needsRemoving[i];
			layer.newlatlng = layer.layer._latlng;
			layer.layer._latlng = layer.latlng;
		}
		//Remove them, then restore their new positions
		for (i = 0, l = this._needsRemoving.length; i < l; i++) {
			layer = this._needsRemoving[i];
			this._removeLayer(layer.layer, true);
			layer.layer._latlng = layer.newlatlng;
		}
		this._needsRemoving = [];

		//Remember the current zoom level and bounds
		this._zoom = Math.round(this._map._zoom);
		this._currentShownBounds = this._getExpandedVisibleBounds();

		this._map.on('zoomend', this._zoomEnd, this);
		this._map.on('moveend', this._moveEnd, this);

		if (this._spiderfierOnAdd) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely
			this._spiderfierOnAdd();
		}

		this._bindEvents();

		//Actually add our markers to the map:
		l = this._needsClustering;
		this._needsClustering = [];
		this.addLayers(l, true);
	},

	//Overrides FeatureGroup.onRemove
	onRemove: function (map) {
		map.off('zoomend', this._zoomEnd, this);
		map.off('moveend', this._moveEnd, this);

		this._unbindEvents();

		//In case we are in a cluster animation
		this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', '');

		if (this._spiderfierOnRemove) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely
			this._spiderfierOnRemove();
		}

		delete this._maxLat;

		//Clean up all the layers we added to the map
		this._hideCoverage();
		this._featureGroup.remove();
		this._nonPointGroup.remove();

		this._featureGroup.clearLayers();

		this._map = null;
	},

	getVisibleParent: function (marker) {
		var vMarker = marker;
		while (vMarker && !vMarker._icon) {
			vMarker = vMarker.__parent;
		}
		return vMarker || null;
	},

	//Remove the given object from the given array
	_arraySplice: function (anArray, obj) {
		for (var i = anArray.length - 1; i >= 0; i--) {
			if (anArray[i] === obj) {
				anArray.splice(i, 1);
				return true;
			}
		}
	},

	/**
	 * Removes a marker from all _gridUnclustered zoom levels, starting at the supplied zoom.
	 * @param marker to be removed from _gridUnclustered.
	 * @param z integer bottom start zoom level (included)
	 * @private
	 */
	_removeFromGridUnclustered: function (marker, z) {
		var map = this._map,
		    gridUnclustered = this._gridUnclustered,
			minZoom = this._map.getMinZoom();

		for (; z >= minZoom; z--) {
			if (!gridUnclustered[z].removeObject(marker, map.project(marker.getLatLng(), z))) {
				break;
			}
		}
	},

	_childMarkerDragStart: function (e) {
		e.target.__dragStart = e.target._latlng;
	},

	_childMarkerMoved: function (e) {
		if (!this._ignoreMove && !e.target.__dragStart) {
			var isPopupOpen = e.target._popup && e.target._popup.isOpen();

			this._moveChild(e.target, e.oldLatLng, e.latlng);

			if (isPopupOpen) {
				e.target.openPopup();
			}
		}
	},

	_moveChild: function (layer, from, to) {
		layer._latlng = from;
		this.removeLayer(layer);

		layer._latlng = to;
		this.addLayer(layer);
	},

	_childMarkerDragEnd: function (e) {
		if (e.target.__dragStart) {
			this._moveChild(e.target, e.target.__dragStart, e.target._latlng);
		}
		delete e.target.__dragStart;
	},
	

	//Internal function for removing a marker from everything.
	//dontUpdateMap: set to true if you will handle updating the map manually (for bulk functions)
	_removeLayer: function (marker, removeFromDistanceGrid, dontUpdateMap) {
		var gridClusters = this._gridClusters,
			gridUnclustered = this._gridUnclustered,
			fg = this._featureGroup,
			map = this._map,
			minZoom = this._map.getMinZoom();

		//Remove the marker from distance clusters it might be in
		if (removeFromDistanceGrid) {
			this._removeFromGridUnclustered(marker, this._maxZoom);
		}

		//Work our way up the clusters removing them as we go if required
		var cluster = marker.__parent,
			markers = cluster._markers,
			otherMarker;

		//Remove the marker from the immediate parents marker list
		this._arraySplice(markers, marker);

		while (cluster) {
			cluster._childCount--;
			cluster._boundsNeedUpdate = true;

			if (cluster._zoom < minZoom) {
				//Top level, do nothing
				break;
			} else if (removeFromDistanceGrid && cluster._childCount <= 1) { //Cluster no longer required
				//We need to push the other marker up to the parent
				otherMarker = cluster._markers[0] === marker ? cluster._markers[1] : cluster._markers[0];

				//Update distance grid
				gridClusters[cluster._zoom].removeObject(cluster, map.project(cluster._cLatLng, cluster._zoom));
				gridUnclustered[cluster._zoom].addObject(otherMarker, map.project(otherMarker.getLatLng(), cluster._zoom));

				//Move otherMarker up to parent
				this._arraySplice(cluster.__parent._childClusters, cluster);
				cluster.__parent._markers.push(otherMarker);
				otherMarker.__parent = cluster.__parent;

				if (cluster._icon) {
					//Cluster is currently on the map, need to put the marker on the map instead
					fg.removeLayer(cluster);
					if (!dontUpdateMap) {
						fg.addLayer(otherMarker);
					}
				}
			} else {
				cluster._iconNeedsUpdate = true;
			}

			cluster = cluster.__parent;
		}

		delete marker.__parent;
	},

	_isOrIsParent: function (el, oel) {
		while (oel) {
			if (el === oel) {
				return true;
			}
			oel = oel.parentNode;
		}
		return false;
	},

	//Override L.Evented.fire
	fire: function (type, data, propagate) {
		if (data && data.layer instanceof L.MarkerCluster) {
			//Prevent multiple clustermouseover/off events if the icon is made up of stacked divs (Doesn't work in ie <= 8, no relatedTarget)
			if (data.originalEvent && this._isOrIsParent(data.layer._icon, data.originalEvent.relatedTarget)) {
				return;
			}
			type = 'cluster' + type;
		}

		L.FeatureGroup.prototype.fire.call(this, type, data, propagate);
	},

	//Override L.Evented.listens
	listens: function (type, propagate) {
		return L.FeatureGroup.prototype.listens.call(this, type, propagate) || L.FeatureGroup.prototype.listens.call(this, 'cluster' + type, propagate);
	},

	//Default functionality
	_defaultIconCreateFunction: function (cluster) {
		var childCount = cluster.getChildCount();

		var c = ' marker-cluster-';
		if (childCount < 10) {
			c += 'small';
		} else if (childCount < 100) {
			c += 'medium';
		} else {
			c += 'large';
		}

		return new L.DivIcon({ html: '<div><span>' + childCount + '</span></div>', className: 'marker-cluster' + c, iconSize: new L.Point(40, 40) });
	},

	_bindEvents: function () {
		var map = this._map,
		    spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom,
		    showCoverageOnHover = this.options.showCoverageOnHover,
		    zoomToBoundsOnClick = this.options.zoomToBoundsOnClick;

		//Zoom on cluster click or spiderfy if we are at the lowest level
		if (spiderfyOnMaxZoom || zoomToBoundsOnClick) {
			this.on('clusterclick', this._zoomOrSpiderfy, this);
		}

		//Show convex hull (boundary) polygon on mouse over
		if (showCoverageOnHover) {
			this.on('clustermouseover', this._showCoverage, this);
			this.on('clustermouseout', this._hideCoverage, this);
			map.on('zoomend', this._hideCoverage, this);
		}
	},

	_zoomOrSpiderfy: function (e) {
		var cluster = e.layer,
		    bottomCluster = cluster;

		while (bottomCluster._childClusters.length === 1) {
			bottomCluster = bottomCluster._childClusters[0];
		}

		if (bottomCluster._zoom === this._maxZoom &&
			bottomCluster._childCount === cluster._childCount &&
			this.options.spiderfyOnMaxZoom) {

			// All child markers are contained in a single cluster from this._maxZoom to this cluster.
			cluster.spiderfy();
		} else if (this.options.zoomToBoundsOnClick) {
			cluster.zoomToBounds();
		}

		// Focus the map again for keyboard users.
		if (e.originalEvent && e.originalEvent.keyCode === 13) {
			this._map._container.focus();
		}
	},

	_showCoverage: function (e) {
		var map = this._map;
		if (this._inZoomAnimation) {
			return;
		}
		if (this._shownPolygon) {
			map.removeLayer(this._shownPolygon);
		}
		if (e.layer.getChildCount() > 2 && e.layer !== this._spiderfied) {
			this._shownPolygon = new L.Polygon(e.layer.getConvexHull(), this.options.polygonOptions);
			map.addLayer(this._shownPolygon);
		}
	},

	_hideCoverage: function () {
		if (this._shownPolygon) {
			this._map.removeLayer(this._shownPolygon);
			this._shownPolygon = null;
		}
	},

	_unbindEvents: function () {
		var spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom,
			showCoverageOnHover = this.options.showCoverageOnHover,
			zoomToBoundsOnClick = this.options.zoomToBoundsOnClick,
			map = this._map;

		if (spiderfyOnMaxZoom || zoomToBoundsOnClick) {
			this.off('clusterclick', this._zoomOrSpiderfy, this);
		}
		if (showCoverageOnHover) {
			this.off('clustermouseover', this._showCoverage, this);
			this.off('clustermouseout', this._hideCoverage, this);
			map.off('zoomend', this._hideCoverage, this);
		}
	},

	_zoomEnd: function () {
		if (!this._map) { //May have been removed from the map by a zoomEnd handler
			return;
		}
		this._mergeSplitClusters();

		this._zoom = Math.round(this._map._zoom);
		this._currentShownBounds = this._getExpandedVisibleBounds();
	},

	_moveEnd: function () {
		if (this._inZoomAnimation) {
			return;
		}

		var newBounds = this._getExpandedVisibleBounds();

		this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._map.getMinZoom(), this._zoom, newBounds);
		this._topClusterLevel._recursivelyAddChildrenToMap(null, Math.round(this._map._zoom), newBounds);

		this._currentShownBounds = newBounds;
		return;
	},

	_generateInitialClusters: function () {
		var maxZoom = this._map.getMaxZoom(),
			minZoom = this._map.getMinZoom(),
			radius = this.options.maxClusterRadius,
			radiusFn = radius;
	
		//If we just set maxClusterRadius to a single number, we need to create
		//a simple function to return that number. Otherwise, we just have to
		//use the function we've passed in.
		if (typeof radius !== "function") {
			radiusFn = function () { return radius; };
		}

		if (this.options.disableClusteringAtZoom !== null) {
			maxZoom = this.options.disableClusteringAtZoom - 1;
		}
		this._maxZoom = maxZoom;
		this._gridClusters = {};
		this._gridUnclustered = {};
	
		//Set up DistanceGrids for each zoom
		for (var zoom = maxZoom; zoom >= minZoom; zoom--) {
			this._gridClusters[zoom] = new L.DistanceGrid(radiusFn(zoom));
			this._gridUnclustered[zoom] = new L.DistanceGrid(radiusFn(zoom));
		}

		// Instantiate the appropriate L.MarkerCluster class (animated or not).
		this._topClusterLevel = new this._markerCluster(this, minZoom - 1);
	},

	//Zoom: Zoom to start adding at (Pass this._maxZoom to start at the bottom)
	_addLayer: function (layer, zoom) {
		var gridClusters = this._gridClusters,
		    gridUnclustered = this._gridUnclustered,
			minZoom = this._map.getMinZoom(),
		    markerPoint, z;

		if (this.options.singleMarkerMode) {
			this._overrideMarkerIcon(layer);
		}

		layer.on(this._childMarkerEventHandlers, this);

		//Find the lowest zoom level to slot this one in
		for (; zoom >= minZoom; zoom--) {
			markerPoint = this._map.project(layer.getLatLng(), zoom); // calculate pixel position

			//Try find a cluster close by
			var closest = gridClusters[zoom].getNearObject(markerPoint);
			if (closest) {
				closest._addChild(layer);
				layer.__parent = closest;
				return;
			}

			//Try find a marker close by to form a new cluster with
			closest = gridUnclustered[zoom].getNearObject(markerPoint);
			if (closest) {
				var parent = closest.__parent;
				if (parent) {
					this._removeLayer(closest, false);
				}

				//Create new cluster with these 2 in it

				var newCluster = new this._markerCluster(this, zoom, closest, layer);
				gridClusters[zoom].addObject(newCluster, this._map.project(newCluster._cLatLng, zoom));
				closest.__parent = newCluster;
				layer.__parent = newCluster;

				//First create any new intermediate parent clusters that don't exist
				var lastParent = newCluster;
				for (z = zoom - 1; z > parent._zoom; z--) {
					lastParent = new this._markerCluster(this, z, lastParent);
					gridClusters[z].addObject(lastParent, this._map.project(closest.getLatLng(), z));
				}
				parent._addChild(lastParent);

				//Remove closest from this zoom level and any above that it is in, replace with newCluster
				this._removeFromGridUnclustered(closest, zoom);

				return;
			}

			//Didn't manage to cluster in at this zoom, record us as a marker here and continue upwards
			gridUnclustered[zoom].addObject(layer, markerPoint);
		}

		//Didn't get in anything, add us to the top
		this._topClusterLevel._addChild(layer);
		layer.__parent = this._topClusterLevel;
		return;
	},

	/**
	 * Refreshes the icon of all "dirty" visible clusters.
	 * Non-visible "dirty" clusters will be updated when they are added to the map.
	 * @private
	 */
	_refreshClustersIcons: function () {
		this._featureGroup.eachLayer(function (c) {
			if (c instanceof L.MarkerCluster && c._iconNeedsUpdate) {
				c._updateIcon();
			}
		});
	},

	//Enqueue code to fire after the marker expand/contract has happened
	_enqueue: function (fn) {
		this._queue.push(fn);
		if (!this._queueTimeout) {
			this._queueTimeout = setTimeout(L.bind(this._processQueue, this), 300);
		}
	},
	_processQueue: function () {
		for (var i = 0; i < this._queue.length; i++) {
			this._queue[i].call(this);
		}
		this._queue.length = 0;
		clearTimeout(this._queueTimeout);
		this._queueTimeout = null;
	},

	//Merge and split any existing clusters that are too big or small
	_mergeSplitClusters: function () {
		var mapZoom = Math.round(this._map._zoom);

		//In case we are starting to split before the animation finished
		this._processQueue();

		if (this._zoom < mapZoom && this._currentShownBounds.intersects(this._getExpandedVisibleBounds())) { //Zoom in, split
			this._animationStart();
			//Remove clusters now off screen
			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._map.getMinZoom(), this._zoom, this._getExpandedVisibleBounds());

			this._animationZoomIn(this._zoom, mapZoom);

		} else if (this._zoom > mapZoom) { //Zoom out, merge
			this._animationStart();

			this._animationZoomOut(this._zoom, mapZoom);
		} else {
			this._moveEnd();
		}
	},

	//Gets the maps visible bounds expanded in each direction by the size of the screen (so the user cannot see an area we do not cover in one pan)
	_getExpandedVisibleBounds: function () {
		if (!this.options.removeOutsideVisibleBounds) {
			return this._mapBoundsInfinite;
		} else if (L.Browser.mobile) {
			return this._checkBoundsMaxLat(this._map.getBounds());
		}

		return this._checkBoundsMaxLat(this._map.getBounds().pad(1)); // Padding expands the bounds by its own dimensions but scaled with the given factor.
	},

	/**
	 * Expands the latitude to Infinity (or -Infinity) if the input bounds reach the map projection maximum defined latitude
	 * (in the case of Web/Spherical Mercator, it is 85.0511287798 / see https://en.wikipedia.org/wiki/Web_Mercator#Formulas).
	 * Otherwise, the removeOutsideVisibleBounds option will remove markers beyond that limit, whereas the same markers without
	 * this option (or outside MCG) will have their position floored (ceiled) by the projection and rendered at that limit,
	 * making the user think that MCG "eats" them and never displays them again.
	 * @param bounds L.LatLngBounds
	 * @returns {L.LatLngBounds}
	 * @private
	 */
	_checkBoundsMaxLat: function (bounds) {
		var maxLat = this._maxLat;

		if (maxLat !== undefined) {
			if (bounds.getNorth() >= maxLat) {
				bounds._northEast.lat = Infinity;
			}
			if (bounds.getSouth() <= -maxLat) {
				bounds._southWest.lat = -Infinity;
			}
		}

		return bounds;
	},

	//Shared animation code
	_animationAddLayerNonAnimated: function (layer, newCluster) {
		if (newCluster === layer) {
			this._featureGroup.addLayer(layer);
		} else if (newCluster._childCount === 2) {
			newCluster._addToMap();

			var markers = newCluster.getAllChildMarkers();
			this._featureGroup.removeLayer(markers[0]);
			this._featureGroup.removeLayer(markers[1]);
		} else {
			newCluster._updateIcon();
		}
	},

	/**
	 * Extracts individual (i.e. non-group) layers from a Layer Group.
	 * @param group to extract layers from.
	 * @param output {Array} in which to store the extracted layers.
	 * @returns {*|Array}
	 * @private
	 */
	_extractNonGroupLayers: function (group, output) {
		var layers = group.getLayers(),
		    i = 0,
		    layer;

		output = output || [];

		for (; i < layers.length; i++) {
			layer = layers[i];

			if (layer instanceof L.LayerGroup) {
				this._extractNonGroupLayers(layer, output);
				continue;
			}

			output.push(layer);
		}

		return output;
	},

	/**
	 * Implements the singleMarkerMode option.
	 * @param layer Marker to re-style using the Clusters iconCreateFunction.
	 * @returns {L.Icon} The newly created icon.
	 * @private
	 */
	_overrideMarkerIcon: function (layer) {
		var icon = layer.options.icon = this.options.iconCreateFunction({
			getChildCount: function () {
				return 1;
			},
			getAllChildMarkers: function () {
				return [layer];
			}
		});

		return icon;
	}
});

// Constant bounds used in case option "removeOutsideVisibleBounds" is set to false.
L.MarkerClusterGroup.include({
	_mapBoundsInfinite: new L.LatLngBounds(new L.LatLng(-Infinity, -Infinity), new L.LatLng(Infinity, Infinity))
});

L.MarkerClusterGroup.include({
	_noAnimation: {
		//Non Animated versions of everything
		_animationStart: function () {
			//Do nothing...
		},
		_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._map.getMinZoom(), previousZoomLevel);
			this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());

			//We didn't actually animate, but we use this event to mean "clustering animations have finished"
			this.fire('animationend');
		},
		_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._map.getMinZoom(), previousZoomLevel);
			this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());

			//We didn't actually animate, but we use this event to mean "clustering animations have finished"
			this.fire('animationend');
		},
		_animationAddLayer: function (layer, newCluster) {
			this._animationAddLayerNonAnimated(layer, newCluster);
		}
	},

	_withAnimation: {
		//Animated versions here
		_animationStart: function () {
			this._map._mapPane.className += ' leaflet-cluster-anim';
			this._inZoomAnimation++;
		},

		_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
			var bounds = this._getExpandedVisibleBounds(),
			    fg = this._featureGroup,
				minZoom = this._map.getMinZoom(),
			    i;

			this._ignoreMove = true;

			//Add all children of current clusters to map and remove those clusters from map
			this._topClusterLevel._recursively(bounds, previousZoomLevel, minZoom, function (c) {
				var startPos = c._latlng,
				    markers  = c._markers,
				    m;

				if (!bounds.contains(startPos)) {
					startPos = null;
				}

				if (c._isSingleParent() && previousZoomLevel + 1 === newZoomLevel) { //Immediately add the new child and remove us
					fg.removeLayer(c);
					c._recursivelyAddChildrenToMap(null, newZoomLevel, bounds);
				} else {
					//Fade out old cluster
					c.clusterHide();
					c._recursivelyAddChildrenToMap(startPos, newZoomLevel, bounds);
				}

				//Remove all markers that aren't visible any more
				//TODO: Do we actually need to do this on the higher levels too?
				for (i = markers.length - 1; i >= 0; i--) {
					m = markers[i];
					if (!bounds.contains(m._latlng)) {
						fg.removeLayer(m);
					}
				}

			});

			this._forceLayout();

			//Update opacities
			this._topClusterLevel._recursivelyBecomeVisible(bounds, newZoomLevel);
			//TODO Maybe? Update markers in _recursivelyBecomeVisible
			fg.eachLayer(function (n) {
				if (!(n instanceof L.MarkerCluster) && n._icon) {
					n.clusterShow();
				}
			});

			//update the positions of the just added clusters/markers
			this._topClusterLevel._recursively(bounds, previousZoomLevel, newZoomLevel, function (c) {
				c._recursivelyRestoreChildPositions(newZoomLevel);
			});

			this._ignoreMove = false;

			//Remove the old clusters and close the zoom animation
			this._enqueue(function () {
				//update the positions of the just added clusters/markers
				this._topClusterLevel._recursively(bounds, previousZoomLevel, minZoom, function (c) {
					fg.removeLayer(c);
					c.clusterShow();
				});

				this._animationEnd();
			});
		},

		_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
			this._animationZoomOutSingle(this._topClusterLevel, previousZoomLevel - 1, newZoomLevel);

			//Need to add markers for those that weren't on the map before but are now
			this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
			//Remove markers that were on the map before but won't be now
			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._map.getMinZoom(), previousZoomLevel, this._getExpandedVisibleBounds());
		},

		_animationAddLayer: function (layer, newCluster) {
			var me = this,
			    fg = this._featureGroup;

			fg.addLayer(layer);
			if (newCluster !== layer) {
				if (newCluster._childCount > 2) { //Was already a cluster

					newCluster._updateIcon();
					this._forceLayout();
					this._animationStart();

					layer._setPos(this._map.latLngToLayerPoint(newCluster.getLatLng()));
					layer.clusterHide();

					this._enqueue(function () {
						fg.removeLayer(layer);
						layer.clusterShow();

						me._animationEnd();
					});

				} else { //Just became a cluster
					this._forceLayout();

					me._animationStart();
					me._animationZoomOutSingle(newCluster, this._map.getMaxZoom(), this._zoom);
				}
			}
		}
	},

	// Private methods for animated versions.
	_animationZoomOutSingle: function (cluster, previousZoomLevel, newZoomLevel) {
		var bounds = this._getExpandedVisibleBounds(),
			minZoom = this._map.getMinZoom();

		//Animate all of the markers in the clusters to move to their cluster center point
		cluster._recursivelyAnimateChildrenInAndAddSelfToMap(bounds, minZoom, previousZoomLevel + 1, newZoomLevel);

		var me = this;

		//Update the opacity (If we immediately set it they won't animate)
		this._forceLayout();
		cluster._recursivelyBecomeVisible(bounds, newZoomLevel);

		//TODO: Maybe use the transition timing stuff to make this more reliable
		//When the animations are done, tidy up
		this._enqueue(function () {

			//This cluster stopped being a cluster before the timeout fired
			if (cluster._childCount === 1) {
				var m = cluster._markers[0];
				//If we were in a cluster animation at the time then the opacity and position of our child could be wrong now, so fix it
				this._ignoreMove = true;
				m.setLatLng(m.getLatLng());
				this._ignoreMove = false;
				if (m.clusterShow) {
					m.clusterShow();
				}
			} else {
				cluster._recursively(bounds, newZoomLevel, minZoom, function (c) {
					c._recursivelyRemoveChildrenFromMap(bounds, minZoom, previousZoomLevel + 1);
				});
			}
			me._animationEnd();
		});
	},

	_animationEnd: function () {
		if (this._map) {
			this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', '');
		}
		this._inZoomAnimation--;
		this.fire('animationend');
	},

	//Force a browser layout of stuff in the map
	// Should apply the current opacity and location to all elements so we can update them again for an animation
	_forceLayout: function () {
		//In my testing this works, infact offsetWidth of any element seems to work.
		//Could loop all this._layers and do this for each _icon if it stops working

		L.Util.falseFn(document.body.offsetWidth);
	}
});

L.markerClusterGroup = function (options) {
	return new L.MarkerClusterGroup(options);
};


L.MarkerCluster = L.Marker.extend({
	initialize: function (group, zoom, a, b) {

		L.Marker.prototype.initialize.call(this, a ? (a._cLatLng || a.getLatLng()) : new L.LatLng(0, 0), { icon: this });


		this._group = group;
		this._zoom = zoom;

		this._markers = [];
		this._childClusters = [];
		this._childCount = 0;
		this._iconNeedsUpdate = true;
		this._boundsNeedUpdate = true;

		this._bounds = new L.LatLngBounds();

		if (a) {
			this._addChild(a);
		}
		if (b) {
			this._addChild(b);
		}
	},

	//Recursively retrieve all child markers of this cluster
	getAllChildMarkers: function (storageArray) {
		storageArray = storageArray || [];

		for (var i = this._childClusters.length - 1; i >= 0; i--) {
			this._childClusters[i].getAllChildMarkers(storageArray);
		}

		for (var j = this._markers.length - 1; j >= 0; j--) {
			storageArray.push(this._markers[j]);
		}

		return storageArray;
	},

	//Returns the count of how many child markers we have
	getChildCount: function () {
		return this._childCount;
	},

	//Zoom to the minimum of showing all of the child markers, or the extents of this cluster
	zoomToBounds: function (fitBoundsOptions) {
		var childClusters = this._childClusters.slice(),
			map = this._group._map,
			boundsZoom = map.getBoundsZoom(this._bounds),
			zoom = this._zoom + 1,
			mapZoom = map.getZoom(),
			i;

		//calculate how far we need to zoom down to see all of the markers
		while (childClusters.length > 0 && boundsZoom > zoom) {
			zoom++;
			var newClusters = [];
			for (i = 0; i < childClusters.length; i++) {
				newClusters = newClusters.concat(childClusters[i]._childClusters);
			}
			childClusters = newClusters;
		}

		if (boundsZoom > zoom) {
			this._group._map.setView(this._latlng, zoom);
		} else if (boundsZoom <= mapZoom) { //If fitBounds wouldn't zoom us down, zoom us down instead
			this._group._map.setView(this._latlng, mapZoom + 1);
		} else {
			this._group._map.fitBounds(this._bounds, fitBoundsOptions);
		}
	},

	getBounds: function () {
		var bounds = new L.LatLngBounds();
		bounds.extend(this._bounds);
		return bounds;
	},

	_updateIcon: function () {
		this._iconNeedsUpdate = true;
		if (this._icon) {
			this.setIcon(this);
		}
	},

	//Cludge for Icon, we pretend to be an icon for performance
	createIcon: function () {
		if (this._iconNeedsUpdate) {
			this._iconObj = this._group.options.iconCreateFunction(this);
			this._iconNeedsUpdate = false;
		}
		return this._iconObj.createIcon();
	},
	createShadow: function () {
		return this._iconObj.createShadow();
	},


	_addChild: function (new1, isNotificationFromChild) {

		this._iconNeedsUpdate = true;

		this._boundsNeedUpdate = true;
		this._setClusterCenter(new1);

		if (new1 instanceof L.MarkerCluster) {
			if (!isNotificationFromChild) {
				this._childClusters.push(new1);
				new1.__parent = this;
			}
			this._childCount += new1._childCount;
		} else {
			if (!isNotificationFromChild) {
				this._markers.push(new1);
			}
			this._childCount++;
		}

		if (this.__parent) {
			this.__parent._addChild(new1, true);
		}
	},

	/**
	 * Makes sure the cluster center is set. If not, uses the child center if it is a cluster, or the marker position.
	 * @param child L.MarkerCluster|L.Marker that will be used as cluster center if not defined yet.
	 * @private
	 */
	_setClusterCenter: function (child) {
		if (!this._cLatLng) {
			// when clustering, take position of the first point as the cluster center
			this._cLatLng = child._cLatLng || child._latlng;
		}
	},

	/**
	 * Assigns impossible bounding values so that the next extend entirely determines the new bounds.
	 * This method avoids having to trash the previous L.LatLngBounds object and to create a new one, which is much slower for this class.
	 * As long as the bounds are not extended, most other methods would probably fail, as they would with bounds initialized but not extended.
	 * @private
	 */
	_resetBounds: function () {
		var bounds = this._bounds;

		if (bounds._southWest) {
			bounds._southWest.lat = Infinity;
			bounds._southWest.lng = Infinity;
		}
		if (bounds._northEast) {
			bounds._northEast.lat = -Infinity;
			bounds._northEast.lng = -Infinity;
		}
	},

	_recalculateBounds: function () {
		var markers = this._markers,
		    childClusters = this._childClusters,
		    latSum = 0,
		    lngSum = 0,
		    totalCount = this._childCount,
		    i, child, childLatLng, childCount;

		// Case where all markers are removed from the map and we are left with just an empty _topClusterLevel.
		if (totalCount === 0) {
			return;
		}

		// Reset rather than creating a new object, for performance.
		this._resetBounds();

		// Child markers.
		for (i = 0; i < markers.length; i++) {
			childLatLng = markers[i]._latlng;

			this._bounds.extend(childLatLng);

			latSum += childLatLng.lat;
			lngSum += childLatLng.lng;
		}

		// Child clusters.
		for (i = 0; i < childClusters.length; i++) {
			child = childClusters[i];

			// Re-compute child bounds and weighted position first if necessary.
			if (child._boundsNeedUpdate) {
				child._recalculateBounds();
			}

			this._bounds.extend(child._bounds);

			childLatLng = child._wLatLng;
			childCount = child._childCount;

			latSum += childLatLng.lat * childCount;
			lngSum += childLatLng.lng * childCount;
		}

		this._latlng = this._wLatLng = new L.LatLng(latSum / totalCount, lngSum / totalCount);

		// Reset dirty flag.
		this._boundsNeedUpdate = false;
	},

	//Set our markers position as given and add it to the map
	_addToMap: function (startPos) {
		if (startPos) {
			this._backupLatlng = this._latlng;
			this.setLatLng(startPos);
		}
		this._group._featureGroup.addLayer(this);
	},

	_recursivelyAnimateChildrenIn: function (bounds, center, maxZoom) {
		this._recursively(bounds, this._group._map.getMinZoom(), maxZoom - 1,
			function (c) {
				var markers = c._markers,
					i, m;
				for (i = markers.length - 1; i >= 0; i--) {
					m = markers[i];

					//Only do it if the icon is still on the map
					if (m._icon) {
						m._setPos(center);
						m.clusterHide();
					}
				}
			},
			function (c) {
				var childClusters = c._childClusters,
					j, cm;
				for (j = childClusters.length - 1; j >= 0; j--) {
					cm = childClusters[j];
					if (cm._icon) {
						cm._setPos(center);
						cm.clusterHide();
					}
				}
			}
		);
	},

	_recursivelyAnimateChildrenInAndAddSelfToMap: function (bounds, mapMinZoom, previousZoomLevel, newZoomLevel) {
		this._recursively(bounds, newZoomLevel, mapMinZoom,
			function (c) {
				c._recursivelyAnimateChildrenIn(bounds, c._group._map.latLngToLayerPoint(c.getLatLng()).round(), previousZoomLevel);

				//TODO: depthToAnimateIn affects _isSingleParent, if there is a multizoom we may/may not be.
				//As a hack we only do a animation free zoom on a single level zoom, if someone does multiple levels then we always animate
				if (c._isSingleParent() && previousZoomLevel - 1 === newZoomLevel) {
					c.clusterShow();
					c._recursivelyRemoveChildrenFromMap(bounds, mapMinZoom, previousZoomLevel); //Immediately remove our children as we are replacing them. TODO previousBounds not bounds
				} else {
					c.clusterHide();
				}

				c._addToMap();
			}
		);
	},

	_recursivelyBecomeVisible: function (bounds, zoomLevel) {
		this._recursively(bounds, this._group._map.getMinZoom(), zoomLevel, null, function (c) {
			c.clusterShow();
		});
	},

	_recursivelyAddChildrenToMap: function (startPos, zoomLevel, bounds) {
		this._recursively(bounds, this._group._map.getMinZoom() - 1, zoomLevel,
			function (c) {
				if (zoomLevel === c._zoom) {
					return;
				}

				//Add our child markers at startPos (so they can be animated out)
				for (var i = c._markers.length - 1; i >= 0; i--) {
					var nm = c._markers[i];

					if (!bounds.contains(nm._latlng)) {
						continue;
					}

					if (startPos) {
						nm._backupLatlng = nm.getLatLng();

						nm.setLatLng(startPos);
						if (nm.clusterHide) {
							nm.clusterHide();
						}
					}

					c._group._featureGroup.addLayer(nm);
				}
			},
			function (c) {
				c._addToMap(startPos);
			}
		);
	},

	_recursivelyRestoreChildPositions: function (zoomLevel) {
		//Fix positions of child markers
		for (var i = this._markers.length - 1; i >= 0; i--) {
			var nm = this._markers[i];
			if (nm._backupLatlng) {
				nm.setLatLng(nm._backupLatlng);
				delete nm._backupLatlng;
			}
		}

		if (zoomLevel - 1 === this._zoom) {
			//Reposition child clusters
			for (var j = this._childClusters.length - 1; j >= 0; j--) {
				this._childClusters[j]._restorePosition();
			}
		} else {
			for (var k = this._childClusters.length - 1; k >= 0; k--) {
				this._childClusters[k]._recursivelyRestoreChildPositions(zoomLevel);
			}
		}
	},

	_restorePosition: function () {
		if (this._backupLatlng) {
			this.setLatLng(this._backupLatlng);
			delete this._backupLatlng;
		}
	},

	//exceptBounds: If set, don't remove any markers/clusters in it
	_recursivelyRemoveChildrenFromMap: function (previousBounds, mapMinZoom, zoomLevel, exceptBounds) {
		var m, i;
		this._recursively(previousBounds, mapMinZoom - 1, zoomLevel - 1,
			function (c) {
				//Remove markers at every level
				for (i = c._markers.length - 1; i >= 0; i--) {
					m = c._markers[i];
					if (!exceptBounds || !exceptBounds.contains(m._latlng)) {
						c._group._featureGroup.removeLayer(m);
						if (m.clusterShow) {
							m.clusterShow();
						}
					}
				}
			},
			function (c) {
				//Remove child clusters at just the bottom level
				for (i = c._childClusters.length - 1; i >= 0; i--) {
					m = c._childClusters[i];
					if (!exceptBounds || !exceptBounds.contains(m._latlng)) {
						c._group._featureGroup.removeLayer(m);
						if (m.clusterShow) {
							m.clusterShow();
						}
					}
				}
			}
		);
	},

	//Run the given functions recursively to this and child clusters
	// boundsToApplyTo: a L.LatLngBounds representing the bounds of what clusters to recurse in to
	// zoomLevelToStart: zoom level to start running functions (inclusive)
	// zoomLevelToStop: zoom level to stop running functions (inclusive)
	// runAtEveryLevel: function that takes an L.MarkerCluster as an argument that should be applied on every level
	// runAtBottomLevel: function that takes an L.MarkerCluster as an argument that should be applied at only the bottom level
	_recursively: function (boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel) {
		var childClusters = this._childClusters,
		    zoom = this._zoom,
		    i, c;

		if (zoomLevelToStart <= zoom) {
			if (runAtEveryLevel) {
				runAtEveryLevel(this);
			}
			if (runAtBottomLevel && zoom === zoomLevelToStop) {
				runAtBottomLevel(this);
			}
		}

		if (zoom < zoomLevelToStart || zoom < zoomLevelToStop) {
			for (i = childClusters.length - 1; i >= 0; i--) {
				c = childClusters[i];
				if (boundsToApplyTo.intersects(c._bounds)) {
					c._recursively(boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel);
				}
			}
		}
	},

	//Returns true if we are the parent of only one cluster and that cluster is the same as us
	_isSingleParent: function () {
		//Don't need to check this._markers as the rest won't work if there are any
		return this._childClusters.length > 0 && this._childClusters[0]._childCount === this._childCount;
	}
});



/*
* Extends L.Marker to include two extra methods: clusterHide and clusterShow.
* 
* They work as setOpacity(0) and setOpacity(1) respectively, but
* they will remember the marker's opacity when hiding and showing it again.
* 
*/


L.Marker.include({
	
	clusterHide: function () {
		this.options.opacityWhenUnclustered = this.options.opacity || 1;
		return this.setOpacity(0);
	},
	
	clusterShow: function () {
		var ret = this.setOpacity(this.options.opacity || this.options.opacityWhenUnclustered);
		delete this.options.opacityWhenUnclustered;
		return ret;
	}
	
});





L.DistanceGrid = function (cellSize) {
	this._cellSize = cellSize;
	this._sqCellSize = cellSize * cellSize;
	this._grid = {};
	this._objectPoint = { };
};

L.DistanceGrid.prototype = {

	addObject: function (obj, point) {
		var x = this._getCoord(point.x),
		    y = this._getCoord(point.y),
		    grid = this._grid,
		    row = grid[y] = grid[y] || {},
		    cell = row[x] = row[x] || [],
		    stamp = L.Util.stamp(obj);

		this._objectPoint[stamp] = point;

		cell.push(obj);
	},

	updateObject: function (obj, point) {
		this.removeObject(obj);
		this.addObject(obj, point);
	},

	//Returns true if the object was found
	removeObject: function (obj, point) {
		var x = this._getCoord(point.x),
		    y = this._getCoord(point.y),
		    grid = this._grid,
		    row = grid[y] = grid[y] || {},
		    cell = row[x] = row[x] || [],
		    i, len;

		delete this._objectPoint[L.Util.stamp(obj)];

		for (i = 0, len = cell.length; i < len; i++) {
			if (cell[i] === obj) {

				cell.splice(i, 1);

				if (len === 1) {
					delete row[x];
				}

				return true;
			}
		}

	},

	eachObject: function (fn, context) {
		var i, j, k, len, row, cell, removed,
		    grid = this._grid;

		for (i in grid) {
			row = grid[i];

			for (j in row) {
				cell = row[j];

				for (k = 0, len = cell.length; k < len; k++) {
					removed = fn.call(context, cell[k]);
					if (removed) {
						k--;
						len--;
					}
				}
			}
		}
	},

	getNearObject: function (point) {
		var x = this._getCoord(point.x),
		    y = this._getCoord(point.y),
		    i, j, k, row, cell, len, obj, dist,
		    objectPoint = this._objectPoint,
		    closestDistSq = this._sqCellSize,
		    closest = null;

		for (i = y - 1; i <= y + 1; i++) {
			row = this._grid[i];
			if (row) {

				for (j = x - 1; j <= x + 1; j++) {
					cell = row[j];
					if (cell) {

						for (k = 0, len = cell.length; k < len; k++) {
							obj = cell[k];
							dist = this._sqDist(objectPoint[L.Util.stamp(obj)], point);
							if (dist < closestDistSq) {
								closestDistSq = dist;
								closest = obj;
							}
						}
					}
				}
			}
		}
		return closest;
	},

	_getCoord: function (x) {
		return Math.floor(x / this._cellSize);
	},

	_sqDist: function (p, p2) {
		var dx = p2.x - p.x,
		    dy = p2.y - p.y;
		return dx * dx + dy * dy;
	}
};


/* Copyright (c) 2012 the authors listed at the following URL, and/or
the authors of referenced articles or incorporated external code:
http://en.literateprograms.org/Quickhull_(Javascript)?action=history&offset=20120410175256

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Retrieved from: http://en.literateprograms.org/Quickhull_(Javascript)?oldid=18434
*/

(function () {
	L.QuickHull = {

		/*
		 * @param {Object} cpt a point to be measured from the baseline
		 * @param {Array} bl the baseline, as represented by a two-element
		 *   array of latlng objects.
		 * @returns {Number} an approximate distance measure
		 */
		getDistant: function (cpt, bl) {
			var vY = bl[1].lat - bl[0].lat,
				vX = bl[0].lng - bl[1].lng;
			return (vX * (cpt.lat - bl[0].lat) + vY * (cpt.lng - bl[0].lng));
		},

		/*
		 * @param {Array} baseLine a two-element array of latlng objects
		 *   representing the baseline to project from
		 * @param {Array} latLngs an array of latlng objects
		 * @returns {Object} the maximum point and all new points to stay
		 *   in consideration for the hull.
		 */
		findMostDistantPointFromBaseLine: function (baseLine, latLngs) {
			var maxD = 0,
				maxPt = null,
				newPoints = [],
				i, pt, d;

			for (i = latLngs.length - 1; i >= 0; i--) {
				pt = latLngs[i];
				d = this.getDistant(pt, baseLine);

				if (d > 0) {
					newPoints.push(pt);
				} else {
					continue;
				}

				if (d > maxD) {
					maxD = d;
					maxPt = pt;
				}
			}

			return { maxPoint: maxPt, newPoints: newPoints };
		},


		/*
		 * Given a baseline, compute the convex hull of latLngs as an array
		 * of latLngs.
		 *
		 * @param {Array} latLngs
		 * @returns {Array}
		 */
		buildConvexHull: function (baseLine, latLngs) {
			var convexHullBaseLines = [],
				t = this.findMostDistantPointFromBaseLine(baseLine, latLngs);

			if (t.maxPoint) { // if there is still a point "outside" the base line
				convexHullBaseLines =
					convexHullBaseLines.concat(
						this.buildConvexHull([baseLine[0], t.maxPoint], t.newPoints)
					);
				convexHullBaseLines =
					convexHullBaseLines.concat(
						this.buildConvexHull([t.maxPoint, baseLine[1]], t.newPoints)
					);
				return convexHullBaseLines;
			} else {  // if there is no more point "outside" the base line, the current base line is part of the convex hull
				return [baseLine[0]];
			}
		},

		/*
		 * Given an array of latlngs, compute a convex hull as an array
		 * of latlngs
		 *
		 * @param {Array} latLngs
		 * @returns {Array}
		 */
		getConvexHull: function (latLngs) {
			// find first baseline
			var maxLat = false, minLat = false,
				maxLng = false, minLng = false,
				maxLatPt = null, minLatPt = null,
				maxLngPt = null, minLngPt = null,
				maxPt = null, minPt = null,
				i;

			for (i = latLngs.length - 1; i >= 0; i--) {
				var pt = latLngs[i];
				if (maxLat === false || pt.lat > maxLat) {
					maxLatPt = pt;
					maxLat = pt.lat;
				}
				if (minLat === false || pt.lat < minLat) {
					minLatPt = pt;
					minLat = pt.lat;
				}
				if (maxLng === false || pt.lng > maxLng) {
					maxLngPt = pt;
					maxLng = pt.lng;
				}
				if (minLng === false || pt.lng < minLng) {
					minLngPt = pt;
					minLng = pt.lng;
				}
			}
			
			if (minLat !== maxLat) {
				minPt = minLatPt;
				maxPt = maxLatPt;
			} else {
				minPt = minLngPt;
				maxPt = maxLngPt;
			}

			var ch = [].concat(this.buildConvexHull([minPt, maxPt], latLngs),
								this.buildConvexHull([maxPt, minPt], latLngs));
			return ch;
		}
	};
}());

L.MarkerCluster.include({
	getConvexHull: function () {
		var childMarkers = this.getAllChildMarkers(),
			points = [],
			p, i;

		for (i = childMarkers.length - 1; i >= 0; i--) {
			p = childMarkers[i].getLatLng();
			points.push(p);
		}

		return L.QuickHull.getConvexHull(points);
	}
});


//This code is 100% based on https://github.com/jawj/OverlappingMarkerSpiderfier-Leaflet
//Huge thanks to jawj for implementing it first to make my job easy :-)

L.MarkerCluster.include({

	_2PI: Math.PI * 2,
	_circleFootSeparation: 25, //related to circumference of circle
	_circleStartAngle: Math.PI / 6,

	_spiralFootSeparation:  28, //related to size of spiral (experiment!)
	_spiralLengthStart: 11,
	_spiralLengthFactor: 5,

	_circleSpiralSwitchover: 9, //show spiral instead of circle from this marker count upwards.
								// 0 -> always spiral; Infinity -> always circle

	spiderfy: function () {
		if (this._group._spiderfied === this || this._group._inZoomAnimation) {
			return;
		}

		var childMarkers = this.getAllChildMarkers(),
			group = this._group,
			map = group._map,
			center = map.latLngToLayerPoint(this._latlng),
			positions;

		this._group._unspiderfy();
		this._group._spiderfied = this;

		//TODO Maybe: childMarkers order by distance to center

		if (childMarkers.length >= this._circleSpiralSwitchover) {
			positions = this._generatePointsSpiral(childMarkers.length, center);
		} else {
			center.y += 10; // Otherwise circles look wrong => hack for standard blue icon, renders differently for other icons.
			positions = this._generatePointsCircle(childMarkers.length, center);
		}

		this._animationSpiderfy(childMarkers, positions);
	},

	unspiderfy: function (zoomDetails) {
		/// <param Name="zoomDetails">Argument from zoomanim if being called in a zoom animation or null otherwise</param>
		if (this._group._inZoomAnimation) {
			return;
		}
		this._animationUnspiderfy(zoomDetails);

		this._group._spiderfied = null;
	},

	_generatePointsCircle: function (count, centerPt) {
		var circumference = this._group.options.spiderfyDistanceMultiplier * this._circleFootSeparation * (2 + count),
			legLength = circumference / this._2PI,  //radius from circumference
			angleStep = this._2PI / count,
			res = [],
			i, angle;

		res.length = count;

		for (i = count - 1; i >= 0; i--) {
			angle = this._circleStartAngle + i * angleStep;
			res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round();
		}

		return res;
	},

	_generatePointsSpiral: function (count, centerPt) {
		var spiderfyDistanceMultiplier = this._group.options.spiderfyDistanceMultiplier,
			legLength = spiderfyDistanceMultiplier * this._spiralLengthStart,
			separation = spiderfyDistanceMultiplier * this._spiralFootSeparation,
			lengthFactor = spiderfyDistanceMultiplier * this._spiralLengthFactor * this._2PI,
			angle = 0,
			res = [],
			i;

		res.length = count;

		// Higher index, closer position to cluster center.
		for (i = count - 1; i >= 0; i--) {
			angle += separation / legLength + i * 0.0005;
			res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round();
			legLength += lengthFactor / angle;
		}
		return res;
	},

	_noanimationUnspiderfy: function () {
		var group = this._group,
			map = group._map,
			fg = group._featureGroup,
			childMarkers = this.getAllChildMarkers(),
			m, i;

		group._ignoreMove = true;

		this.setOpacity(1);
		for (i = childMarkers.length - 1; i >= 0; i--) {
			m = childMarkers[i];

			fg.removeLayer(m);

			if (m._preSpiderfyLatlng) {
				m.setLatLng(m._preSpiderfyLatlng);
				delete m._preSpiderfyLatlng;
			}
			if (m.setZIndexOffset) {
				m.setZIndexOffset(0);
			}

			if (m._spiderLeg) {
				map.removeLayer(m._spiderLeg);
				delete m._spiderLeg;
			}
		}

		group.fire('unspiderfied', {
			cluster: this,
			markers: childMarkers
		});
		group._ignoreMove = false;
		group._spiderfied = null;
	}
});

//Non Animated versions of everything
L.MarkerClusterNonAnimated = L.MarkerCluster.extend({
	_animationSpiderfy: function (childMarkers, positions) {
		var group = this._group,
			map = group._map,
			fg = group._featureGroup,
			legOptions = this._group.options.spiderLegPolylineOptions,
			i, m, leg, newPos;

		group._ignoreMove = true;

		// Traverse in ascending order to make sure that inner circleMarkers are on top of further legs. Normal markers are re-ordered by newPosition.
		// The reverse order trick no longer improves performance on modern browsers.
		for (i = 0; i < childMarkers.length; i++) {
			newPos = map.layerPointToLatLng(positions[i]);
			m = childMarkers[i];

			// Add the leg before the marker, so that in case the latter is a circleMarker, the leg is behind it.
			leg = new L.Polyline([this._latlng, newPos], legOptions);
			map.addLayer(leg);
			m._spiderLeg = leg;

			// Now add the marker.
			m._preSpiderfyLatlng = m._latlng;
			m.setLatLng(newPos);
			if (m.setZIndexOffset) {
				m.setZIndexOffset(1000000); //Make these appear on top of EVERYTHING
			}

			fg.addLayer(m);
		}
		this.setOpacity(0.3);

		group._ignoreMove = false;
		group.fire('spiderfied', {
			cluster: this,
			markers: childMarkers
		});
	},

	_animationUnspiderfy: function () {
		this._noanimationUnspiderfy();
	}
});

//Animated versions here
L.MarkerCluster.include({

	_animationSpiderfy: function (childMarkers, positions) {
		var me = this,
			group = this._group,
			map = group._map,
			fg = group._featureGroup,
			thisLayerLatLng = this._latlng,
			thisLayerPos = map.latLngToLayerPoint(thisLayerLatLng),
			svg = L.Path.SVG,
			legOptions = L.extend({}, this._group.options.spiderLegPolylineOptions), // Copy the options so that we can modify them for animation.
			finalLegOpacity = legOptions.opacity,
			i, m, leg, legPath, legLength, newPos;

		if (finalLegOpacity === undefined) {
			finalLegOpacity = L.MarkerClusterGroup.prototype.options.spiderLegPolylineOptions.opacity;
		}

		if (svg) {
			// If the initial opacity of the spider leg is not 0 then it appears before the animation starts.
			legOptions.opacity = 0;

			// Add the class for CSS transitions.
			legOptions.className = (legOptions.className || '') + ' leaflet-cluster-spider-leg';
		} else {
			// Make sure we have a defined opacity.
			legOptions.opacity = finalLegOpacity;
		}

		group._ignoreMove = true;

		// Add markers and spider legs to map, hidden at our center point.
		// Traverse in ascending order to make sure that inner circleMarkers are on top of further legs. Normal markers are re-ordered by newPosition.
		// The reverse order trick no longer improves performance on modern browsers.
		for (i = 0; i < childMarkers.length; i++) {
			m = childMarkers[i];

			newPos = map.layerPointToLatLng(positions[i]);

			// Add the leg before the marker, so that in case the latter is a circleMarker, the leg is behind it.
			leg = new L.Polyline([thisLayerLatLng, newPos], legOptions);
			map.addLayer(leg);
			m._spiderLeg = leg;

			// Explanations: https://jakearchibald.com/2013/animated-line-drawing-svg/
			// In our case the transition property is declared in the CSS file.
			if (svg) {
				legPath = leg._path;
				legLength = legPath.getTotalLength() + 0.1; // Need a small extra length to avoid remaining dot in Firefox.
				legPath.style.strokeDasharray = legLength; // Just 1 length is enough, it will be duplicated.
				legPath.style.strokeDashoffset = legLength;
			}

			// If it is a marker, add it now and we'll animate it out
			if (m.setZIndexOffset) {
				m.setZIndexOffset(1000000); // Make normal markers appear on top of EVERYTHING
			}
			if (m.clusterHide) {
				m.clusterHide();
			}
			
			// Vectors just get immediately added
			fg.addLayer(m);

			if (m._setPos) {
				m._setPos(thisLayerPos);
			}
		}

		group._forceLayout();
		group._animationStart();

		// Reveal markers and spider legs.
		for (i = childMarkers.length - 1; i >= 0; i--) {
			newPos = map.layerPointToLatLng(positions[i]);
			m = childMarkers[i];

			//Move marker to new position
			m._preSpiderfyLatlng = m._latlng;
			m.setLatLng(newPos);
			
			if (m.clusterShow) {
				m.clusterShow();
			}

			// Animate leg (animation is actually delegated to CSS transition).
			if (svg) {
				leg = m._spiderLeg;
				legPath = leg._path;
				legPath.style.strokeDashoffset = 0;
				//legPath.style.strokeOpacity = finalLegOpacity;
				leg.setStyle({opacity: finalLegOpacity});
			}
		}
		this.setOpacity(0.3);

		group._ignoreMove = false;

		setTimeout(function () {
			group._animationEnd();
			group.fire('spiderfied', {
				cluster: me,
				markers: childMarkers
			});
		}, 200);
	},

	_animationUnspiderfy: function (zoomDetails) {
		var me = this,
			group = this._group,
			map = group._map,
			fg = group._featureGroup,
			thisLayerPos = zoomDetails ? map._latLngToNewLayerPoint(this._latlng, zoomDetails.zoom, zoomDetails.center) : map.latLngToLayerPoint(this._latlng),
			childMarkers = this.getAllChildMarkers(),
			svg = L.Path.SVG,
			m, i, leg, legPath, legLength, nonAnimatable;

		group._ignoreMove = true;
		group._animationStart();

		//Make us visible and bring the child markers back in
		this.setOpacity(1);
		for (i = childMarkers.length - 1; i >= 0; i--) {
			m = childMarkers[i];

			//Marker was added to us after we were spiderfied
			if (!m._preSpiderfyLatlng) {
				continue;
			}

			//Close any popup on the marker first, otherwise setting the location of the marker will make the map scroll
			m.closePopup();

			//Fix up the location to the real one
			m.setLatLng(m._preSpiderfyLatlng);
			delete m._preSpiderfyLatlng;

			//Hack override the location to be our center
			nonAnimatable = true;
			if (m._setPos) {
				m._setPos(thisLayerPos);
				nonAnimatable = false;
			}
			if (m.clusterHide) {
				m.clusterHide();
				nonAnimatable = false;
			}
			if (nonAnimatable) {
				fg.removeLayer(m);
			}

			// Animate the spider leg back in (animation is actually delegated to CSS transition).
			if (svg) {
				leg = m._spiderLeg;
				legPath = leg._path;
				legLength = legPath.getTotalLength() + 0.1;
				legPath.style.strokeDashoffset = legLength;
				leg.setStyle({opacity: 0});
			}
		}

		group._ignoreMove = false;

		setTimeout(function () {
			//If we have only <= one child left then that marker will be shown on the map so don't remove it!
			var stillThereChildCount = 0;
			for (i = childMarkers.length - 1; i >= 0; i--) {
				m = childMarkers[i];
				if (m._spiderLeg) {
					stillThereChildCount++;
				}
			}


			for (i = childMarkers.length - 1; i >= 0; i--) {
				m = childMarkers[i];

				if (!m._spiderLeg) { //Has already been unspiderfied
					continue;
				}

				if (m.clusterShow) {
					m.clusterShow();
				}
				if (m.setZIndexOffset) {
					m.setZIndexOffset(0);
				}

				if (stillThereChildCount > 1) {
					fg.removeLayer(m);
				}

				map.removeLayer(m._spiderLeg);
				delete m._spiderLeg;
			}
			group._animationEnd();
			group.fire('unspiderfied', {
				cluster: me,
				markers: childMarkers
			});
		}, 200);
	}
});


L.MarkerClusterGroup.include({
	//The MarkerCluster currently spiderfied (if any)
	_spiderfied: null,

	unspiderfy: function () {
		this._unspiderfy.apply(this, arguments);
	},

	_spiderfierOnAdd: function () {
		this._map.on('click', this._unspiderfyWrapper, this);

		if (this._map.options.zoomAnimation) {
			this._map.on('zoomstart', this._unspiderfyZoomStart, this);
		}
		//Browsers without zoomAnimation or a big zoom don't fire zoomstart
		this._map.on('zoomend', this._noanimationUnspiderfy, this);

		if (!L.Browser.touch) {
			this._map.getRenderer(this);
			//Needs to happen in the pageload, not after, or animations don't work in webkit
			//  http://stackoverflow.com/questions/8455200/svg-animate-with-dynamically-added-elements
			//Disable on touch browsers as the animation messes up on a touch zoom and isn't very noticable
		}
	},

	_spiderfierOnRemove: function () {
		this._map.off('click', this._unspiderfyWrapper, this);
		this._map.off('zoomstart', this._unspiderfyZoomStart, this);
		this._map.off('zoomanim', this._unspiderfyZoomAnim, this);
		this._map.off('zoomend', this._noanimationUnspiderfy, this);

		//Ensure that markers are back where they should be
		// Use no animation to avoid a sticky leaflet-cluster-anim class on mapPane
		this._noanimationUnspiderfy();
	},

	//On zoom start we add a zoomanim handler so that we are guaranteed to be last (after markers are animated)
	//This means we can define the animation they do rather than Markers doing an animation to their actual location
	_unspiderfyZoomStart: function () {
		if (!this._map) { //May have been removed from the map by a zoomEnd handler
			return;
		}

		this._map.on('zoomanim', this._unspiderfyZoomAnim, this);
	},

	_unspiderfyZoomAnim: function (zoomDetails) {
		//Wait until the first zoomanim after the user has finished touch-zooming before running the animation
		if (L.DomUtil.hasClass(this._map._mapPane, 'leaflet-touching')) {
			return;
		}

		this._map.off('zoomanim', this._unspiderfyZoomAnim, this);
		this._unspiderfy(zoomDetails);
	},

	_unspiderfyWrapper: function () {
		/// <summary>_unspiderfy but passes no arguments</summary>
		this._unspiderfy();
	},

	_unspiderfy: function (zoomDetails) {
		if (this._spiderfied) {
			this._spiderfied.unspiderfy(zoomDetails);
		}
	},

	_noanimationUnspiderfy: function () {
		if (this._spiderfied) {
			this._spiderfied._noanimationUnspiderfy();
		}
	},

	//If the given layer is currently being spiderfied then we unspiderfy it so it isn't on the map anymore etc
	_unspiderfyLayer: function (layer) {
		if (layer._spiderLeg) {
			this._featureGroup.removeLayer(layer);

			if (layer.clusterShow) {
				layer.clusterShow();
			}
				//Position will be fixed up immediately in _animationUnspiderfy
			if (layer.setZIndexOffset) {
				layer.setZIndexOffset(0);
			}

			this._map.removeLayer(layer._spiderLeg);
			delete layer._spiderLeg;
		}
	}
});


/**
 * Adds 1 public method to MCG and 1 to L.Marker to facilitate changing
 * markers' icon options and refreshing their icon and their parent clusters
 * accordingly (case where their iconCreateFunction uses data of childMarkers
 * to make up the cluster icon).
 */


L.MarkerClusterGroup.include({
	/**
	 * Updates the icon of all clusters which are parents of the given marker(s).
	 * In singleMarkerMode, also updates the given marker(s) icon.
	 * @param layers L.MarkerClusterGroup|L.LayerGroup|Array(L.Marker)|Map(L.Marker)|
	 * L.MarkerCluster|L.Marker (optional) list of markers (or single marker) whose parent
	 * clusters need to be updated. If not provided, retrieves all child markers of this.
	 * @returns {L.MarkerClusterGroup}
	 */
	refreshClusters: function (layers) {
		if (!layers) {
			layers = this._topClusterLevel.getAllChildMarkers();
		} else if (layers instanceof L.MarkerClusterGroup) {
			layers = layers._topClusterLevel.getAllChildMarkers();
		} else if (layers instanceof L.LayerGroup) {
			layers = layers._layers;
		} else if (layers instanceof L.MarkerCluster) {
			layers = layers.getAllChildMarkers();
		} else if (layers instanceof L.Marker) {
			layers = [layers];
		} // else: must be an Array(L.Marker)|Map(L.Marker)
		this._flagParentsIconsNeedUpdate(layers);
		this._refreshClustersIcons();

		// In case of singleMarkerMode, also re-draw the markers.
		if (this.options.singleMarkerMode) {
			this._refreshSingleMarkerModeMarkers(layers);
		}

		return this;
	},

	/**
	 * Simply flags all parent clusters of the given markers as having a "dirty" icon.
	 * @param layers Array(L.Marker)|Map(L.Marker) list of markers.
	 * @private
	 */
	_flagParentsIconsNeedUpdate: function (layers) {
		var id, parent;

		// Assumes layers is an Array or an Object whose prototype is non-enumerable.
		for (id in layers) {
			// Flag parent clusters' icon as "dirty", all the way up.
			// Dumb process that flags multiple times upper parents, but still
			// much more efficient than trying to be smart and make short lists,
			// at least in the case of a hierarchy following a power law:
			// http://jsperf.com/flag-nodes-in-power-hierarchy/2
			parent = layers[id].__parent;
			while (parent) {
				parent._iconNeedsUpdate = true;
				parent = parent.__parent;
			}
		}
	},

	/**
	 * Re-draws the icon of the supplied markers.
	 * To be used in singleMarkerMode only.
	 * @param layers Array(L.Marker)|Map(L.Marker) list of markers.
	 * @private
	 */
	_refreshSingleMarkerModeMarkers: function (layers) {
		var id, layer;

		for (id in layers) {
			layer = layers[id];

			// Make sure we do not override markers that do not belong to THIS group.
			if (this.hasLayer(layer)) {
				// Need to re-create the icon first, then re-draw the marker.
				layer.setIcon(this._overrideMarkerIcon(layer));
			}
		}
	}
});

L.Marker.include({
	/**
	 * Updates the given options in the marker's icon and refreshes the marker.
	 * @param options map object of icon options.
	 * @param directlyRefreshClusters boolean (optional) true to trigger
	 * MCG.refreshClustersOf() right away with this single marker.
	 * @returns {L.Marker}
	 */
	refreshIconOptions: function (options, directlyRefreshClusters) {
		var icon = this.options.icon;

		L.setOptions(icon, options);

		this.setIcon(icon);

		// Shortcut to refresh the associated MCG clusters right away.
		// To be used when refreshing a single marker.
		// Otherwise, better use MCG.refreshClusters() once at the end with
		// the list of modified markers.
		if (directlyRefreshClusters && this.__parent) {
			this.__parent._group.refreshClusters(this);
		}

		return this;
	}
});


}(window, document));
/*
  Leaflet.AwesomeMarkers, a plugin that adds colorful iconic markers for Leaflet, based on the Font Awesome icons
  (c) 2012-2013, Lennard Voogdt

  http://leafletjs.com
  https://github.com/lvoogdt
*/

/*global L*/


(function (window, document, undefined) {
    "use strict";
    /*
     * Leaflet.AwesomeMarkers assumes that you have already included the Leaflet library.
     */

    L.AwesomeMarkers = {};

    L.AwesomeMarkers.version = '2.0.1';

    L.AwesomeMarkers.Icon = L.Icon.extend({
        options: {
            iconSize: [35, 45],
            iconAnchor:   [17, 42],
            popupAnchor: [1, -32],
            shadowAnchor: [10, 12],
            shadowSize: [36, 16],
            className: 'awesome-marker',
            prefix: 'glyphicon',
            spinClass: 'fa-spin',
            extraClasses: '',
            icon: 'home',
            markerColor: 'blue',
            iconColor: 'white'
        },

        initialize: function (options) {
            options = L.Util.setOptions(this, options);
        },

        createIcon: function () {
            var div = document.createElement('div'),
                options = this.options;

            if (options.icon) {
                div.innerHTML = this._createInner();
            }

            if (options.bgPos) {
                div.style.backgroundPosition =
                    (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
            }

            this._setIconStyles(div, 'icon-' + options.markerColor);
            return div;
        },

        _createInner: function() {
            var iconClass, iconSpinClass = "", iconColorClass = "", iconColorStyle = "", options = this.options;

            if(options.icon.slice(0,options.prefix.length+1) === options.prefix + "-") {
                iconClass = options.icon;
            } else {
                iconClass = options.prefix + "-" + options.icon;
            }

            if(options.spin && typeof options.spinClass === "string") {
                iconSpinClass = options.spinClass;
            }

            if(options.iconColor) {
                if(options.iconColor === 'white' || options.iconColor === 'black') {
                    iconColorClass = "icon-" + options.iconColor;
                } else {
                    iconColorStyle = "style='color: " + options.iconColor + "' ";
                }
            }

            return "<i " + iconColorStyle + "class='" + options.extraClasses + " " + options.prefix + " " + iconClass + " " + iconSpinClass + " " + iconColorClass + "'></i>";
        },

        _setIconStyles: function (img, name) {
            var options = this.options,
                size = L.point(options[name === 'shadow' ? 'shadowSize' : 'iconSize']),
                anchor;

            if (name === 'shadow') {
                anchor = L.point(options.shadowAnchor || options.iconAnchor);
            } else {
                anchor = L.point(options.iconAnchor);
            }

            if (!anchor && size) {
                anchor = size.divideBy(2, true);
            }

            img.className = 'awesome-marker-' + name + ' ' + options.className;

            if (anchor) {
                img.style.marginLeft = (-anchor.x) + 'px';
                img.style.marginTop  = (-anchor.y) + 'px';
            }

            if (size) {
                img.style.width  = size.x + 'px';
                img.style.height = size.y + 'px';
            }
        },

        createShadow: function () {
            var div = document.createElement('div');

            this._setIconStyles(div, 'shadow');
            return div;
      }
    });
        
    L.AwesomeMarkers.icon = function (options) {
        return new L.AwesomeMarkers.Icon(options);
    };

}(this, document));




/*
  @licstart  The following is the entire license notice for the JavaScript code in this page.

  frTypo, la typographie française simplifiée

      Copyright (C) 2013  acoeuro

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU Affero General Public License as
  published by the Free Software Foundation, either version 3 of the
  License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

  @licend  The above is the entire license notice for the JavaScript code in this page.
 */

(function() {
  var regexp, regexpPost;

  $(document).on('turbolinks:load', function() {
    if ($('html').attr('lang') === 'fr') {
      return $('body *').contents().filter(function() {
        return this.nodeType === Node.TEXT_NODE;
      }).filter(function() {
        return 0 > ['CODE', 'PRE', 'STYLE'].indexOf(this.parentNode.tagName);
      }).filter(function() {
        return (this.nodeValue.match(regexp) != null) || (this.nodeValue.match(regexpPost) != null);
      }).each(function() {
        return $(this).replaceWith(function() {
          return this.nodeValue.replace(regexp, '$1<span class="finePre">$2</span>$3').replace(regexpPost, '<span class="finePost">$1</span>$2');
        });
      });
    }
  });

  regexp = /([\w])([!?:;»%])([\s]|[^\w\/]|$)/g;

  regexpPost = /([«])([\w])/g;

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {
    $('#event_start_time').change(function() {
      if ($('#event_start_time').val() >= $('#event_end_time').val()) {
        return $('#event_end_time').val($('#event_start_time').val());
      }
    });
    $('#event_end_time').change(function() {
      if ($('#event_start_time').val() >= $('#event_end_time').val()) {
        return $('#event_start_time').val($('#event_end_time').val());
      }
    });
    $('#event_repeat').each(function() {
      if ($(this).val() === '0') {
        $('.field.rule').hide();
      }
      return $(this).change(function() {
        if ($(this).val() > 0) {
          return $('.field.rule').show();
        } else {
          return $('.field.rule').hide();
        }
      });
    });
    return $('#event_tags').each(function() {
      var elt;
      elt = $(this);
      return $.ajax({
        url: '/tags.json'
      }).done(function(data) {
        var tags;
        return tags = jQuery.map(data, function(n) {
          return n[0];
        });
      });
    });
  });

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {
    $('body.pages form :input').prop('disabled', false);
    return $('body.pages form').submit(function() {
      $('input[name=utf8]').prop('disabled', true);
      return $(':input', this).filter(function() {
        return this.value.length === 0;
      }).prop('disabled', true);
    });
  });

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {});

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {});

}).call(this);
(function() {
  var modulo = function(a, b) { return (+a % (b = +b) + b) % b; };

  $(document).on('turbolinks:load', function() {
    var idx, markerColors;
    markerColors = ['blue', 'red', 'darkred', 'orange', 'green', 'darkgreen', 'purple', 'darkpuple', 'cadetblue'];
    idx = 0;
    $('#map.list').each(function() {
      var controls, map;
      map = L.map('map');
      L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a>'
      }).addTo(map);
      controls = L.control.layers(null, null, {
        collapsed: false
      }).addTo(map);
      return $('li a', this).each(function() {
        var markerColor, text, url;
        url = $(this).attr('href');
        text = $(this).html();
        markerColor = markerColors[modulo(idx++, markerColors.length)];
        if (location.search && url.indexOf('?') >= 0) {
          url += '&' + location.search.substr(1);
        } else {
          url += location.search;
        }
        return $.getJSON(url, function(json) {
          var layer;
          if (json) {
            layer = L.markerClusterGroup({
              maxClusterRadius: 30
            }).addLayer(L.geoJson(json, {
              pointToLayer: function(feature, latlng) {
                var marker;
                marker = L.AwesomeMarkers.icon({
                  prefix: 'fa',
                  icon: feature.properties.icon || 'calendar',
                  markerColor: markerColor
                });
                return L.marker(latlng, {
                  icon: marker
                });
              },
              onEachFeature: function(feature, layer) {
                if (feature.properties && feature.properties.popupContent) {
                  return layer.bindPopup(feature.properties.popupContent);
                }
              }
            }));
            map.addLayer(layer);
            controls.addOverlay(layer, text + ' - ' + json.length);
            if ((/maps\//.test(location.href) || /maps.json/.test(url)) && layer.getBounds()._northEast && layer.getBounds()._southWest) {
              return map.fitBounds(layer.getBounds());
            }
          }
        });
      });
    });
    return $('#map.event, #map.orga').each(function() {
      var coord, map, marker, markerColor, url;
      coord = [$(this).data('latitude'), $(this).data('longitude')];
      map = L.map('map').setView([coord[0], coord[1]], 16);
      L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a>'
      }).addTo(map);
      url = $(this).data('url');
      markerColor = markerColors[modulo(idx++, markerColors.length)];
      if (location.search && url.indexOf('?') >= 0) {
        url += '&' + location.search.substr(1);
      } else {
        url += location.search;
      }
      marker = L.AwesomeMarkers.icon({
        prefix: 'fa',
        icon: 'calendar'
      });
      L.marker([coord[0], coord[1]], {
        icon: marker
      }).addTo(map);
      return $.getJSON(url, function(json) {
        var layer;
        layer = L.markerClusterGroup({
          maxClusterRadius: 30
        }).addLayer(L.geoJson(json, {
          pointToLayer: function(feature, latlng) {
            marker = L.AwesomeMarkers.icon({
              prefix: 'fa',
              icon: feature.properties.icon || 'calendar',
              markerColor: markerColor
            });
            return L.marker(latlng, {
              icon: marker
            });
          },
          onEachFeature: function(feature, layer) {
            if (feature.properties && feature.properties.popupContent) {
              return layer.bindPopup(feature.properties.popupContent);
            }
          }
        }));
        return map.addLayer(layer);
      });
    });
  });

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {
    $('body.moderations .radios label').click(function() {
      return $('body.moderations #event_reason').parent().slideUp();
    });
    return $('body.moderations .radios label:last-child').click(function() {
      return $('body.moderations #event_reason').parent().slideDown();
    });
  });

}).call(this);
(function() {


}).call(this);
(function() {


}).call(this);
(function() {
  var pager;

  pager = true;

  $(document).on('turbolinks:load', function() {
    $('.pagination .next a').attr('data-remote', true).click(function() {
      return $('#loading').fadeIn();
    });
    if (pager) {
      pager = false;
      $(document).on('ajax:success', '.pagination .next a', function(event, data, status, xhr) {
        var elts, next;
        $('#loading').fadeOut();
        elts = $('tbody tr', data);
        $(this).parents('tfoot').prev().append(elts);
        next = $('.pagination .next a', data).attr('href');
        if (next != null) {
          return $(this).show().data('remote', true).attr('href', next);
        } else {
          return $(this).parents('.pagination').remove();
        }
      });
    }
    if ($('.pagination .next a').size() > 0) {
      return $(document).scroll(function() {
        if ($(window).scrollTop() === $(document).height() - $(window).height() && $('.pagination .next a').is(':visible')) {
          return $('.pagination .next a').hide().click();
        }
      });
    }
  });

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {
    $('table.list.dates tbody tr').each(function() {
      var vals;
      vals = $(this).find('td.quantity').map(function() {
        var val;
        val = $(this).find('a').html().replace(' ', '').trim();
        if (val && val !== '') {
          return parseInt(val);
        } else {
          return 0;
        }
      });
      return $(this).find('.sparkline').sparkline(vals, {
        width: '5em'
      });
    });
    return $('table.list.dates tfoot').each(function() {
      var vals;
      vals = $(this).find('th.quantity').map(function() {
        return parseInt($(this).html().replace(' ', ''));
      });
      return $(this).find('.sparkline').sparkline(vals, {
        type: 'bar',
        height: '3em',
        barWidth: '100%',
        barColor: '#9CC5EE',
        barSpacing: 2
      });
    });
  });

}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {
    return tinyMCE.init({
      schema: 'html5',
      height: '40em',
      menubar: '',
      branding: false,
      language: 'fr_FR',
      selector: 'input.description',
      content_css: '/assets/application-9cbc5ca9bda84dbd130381bbea20723c961811b1b4e33d9a18c3aaaa60f22969.css',
      entity_encoding: 'raw',
      add_unload_trigger: true,
      browser_spellcheck: true,
      toolbar: [' cut copy paste | undo redo | searchreplace | link image media charmap table | code visualblocks preview fullscreen', ' removeformat | bold italic strikethrough | superscript subscript | bullist numlist | alignleft aligncenter alignright alignjustify alignnone | outdent indent'],
      plugins: 'lists, advlist, autolink, link, image, charmap, paste, print, preview, table, fullscreen, searchreplace, media, insertdatetime, visualblocks, wordcount, contextmenu, code'
    });
  });

  $(document).on('turbolinks:before-cache', function() {
    return tinymce.remove();
  });

}).call(this);
(function() {


}).call(this);
(function() {
  $(document).on('turbolinks:load', function() {
    if (!Modernizr.testAllProps('forceBrokenImageIcon')) {
      $('img.favicon').one('error', function() {
        return $(this).css({
          visibility: 'hidden'
        });
      });
    }
    return $('.field.tags input').tagsInput({
      delimiter: [' '],
      defaultText: '',
      autocomplete_url: '/tags.json'
    });
  });

}).call(this);