2056 lines
59 KiB
JavaScript
2056 lines
59 KiB
JavaScript
/*!
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* Sizzle CSS Selector Engine v1.10.19
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* http://sizzlejs.com/
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*
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* Copyright 2013 jQuery Foundation, Inc. and other contributors
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* Released under the MIT license
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* http://jquery.org/license
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*
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* Date: 2014-04-18
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*/
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(function( window ) {
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var i,
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support,
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Expr,
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getText,
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isXML,
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tokenize,
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compile,
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select,
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outermostContext,
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sortInput,
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hasDuplicate,
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// Local document vars
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setDocument,
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document,
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docElem,
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documentIsHTML,
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rbuggyQSA,
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rbuggyMatches,
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matches,
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contains,
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// Instance-specific data
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expando = "sizzle" + -(new Date()),
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preferredDoc = window.document,
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dirruns = 0,
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done = 0,
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classCache = createCache(),
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tokenCache = createCache(),
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compilerCache = createCache(),
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sortOrder = function( a, b ) {
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if ( a === b ) {
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hasDuplicate = true;
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}
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return 0;
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},
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// General-purpose constants
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strundefined = typeof undefined,
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MAX_NEGATIVE = 1 << 31,
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// Instance methods
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hasOwn = ({}).hasOwnProperty,
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arr = [],
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pop = arr.pop,
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push_native = arr.push,
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push = arr.push,
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slice = arr.slice,
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// Use a stripped-down indexOf if we can't use a native one
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indexOf = arr.indexOf || function( elem ) {
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var i = 0,
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len = this.length;
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for ( ; i < len; i++ ) {
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if ( this[i] === elem ) {
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return i;
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}
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}
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return -1;
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},
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booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
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// Regular expressions
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// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
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whitespace = "[\\x20\\t\\r\\n\\f]",
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// http://www.w3.org/TR/css3-syntax/#characters
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characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
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// Loosely modeled on CSS identifier characters
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// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
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// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
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identifier = characterEncoding.replace( "w", "w#" ),
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// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
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attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace +
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// Operator (capture 2)
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"*([*^$|!~]?=)" + whitespace +
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// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
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"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
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"*\\]",
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pseudos = ":(" + characterEncoding + ")(?:\\((" +
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// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
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// 1. quoted (capture 3; capture 4 or capture 5)
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"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
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// 2. simple (capture 6)
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"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
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// 3. anything else (capture 2)
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".*" +
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")\\)|)",
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// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
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rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
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rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
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rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
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rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
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rpseudo = new RegExp( pseudos ),
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ridentifier = new RegExp( "^" + identifier + "$" ),
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matchExpr = {
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"ID": new RegExp( "^#(" + characterEncoding + ")" ),
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"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
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"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
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"ATTR": new RegExp( "^" + attributes ),
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"PSEUDO": new RegExp( "^" + pseudos ),
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"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
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"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
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"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
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"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
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// For use in libraries implementing .is()
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// We use this for POS matching in `select`
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"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
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whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
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},
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rinputs = /^(?:input|select|textarea|button)$/i,
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rheader = /^h\d$/i,
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rnative = /^[^{]+\{\s*\[native \w/,
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// Easily-parseable/retrievable ID or TAG or CLASS selectors
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rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
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rsibling = /[+~]/,
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rescape = /'|\\/g,
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// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
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runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
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funescape = function( _, escaped, escapedWhitespace ) {
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var high = "0x" + escaped - 0x10000;
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// NaN means non-codepoint
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// Support: Firefox<24
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// Workaround erroneous numeric interpretation of +"0x"
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return high !== high || escapedWhitespace ?
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escaped :
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high < 0 ?
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// BMP codepoint
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String.fromCharCode( high + 0x10000 ) :
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// Supplemental Plane codepoint (surrogate pair)
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String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
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};
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// Optimize for push.apply( _, NodeList )
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try {
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push.apply(
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(arr = slice.call( preferredDoc.childNodes )),
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preferredDoc.childNodes
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);
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// Support: Android<4.0
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// Detect silently failing push.apply
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arr[ preferredDoc.childNodes.length ].nodeType;
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} catch ( e ) {
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push = { apply: arr.length ?
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// Leverage slice if possible
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function( target, els ) {
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push_native.apply( target, slice.call(els) );
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} :
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// Support: IE<9
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// Otherwise append directly
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function( target, els ) {
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var j = target.length,
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i = 0;
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// Can't trust NodeList.length
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while ( (target[j++] = els[i++]) ) {}
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target.length = j - 1;
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}
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};
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}
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function Sizzle( selector, context, results, seed ) {
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var match, elem, m, nodeType,
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// QSA vars
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i, groups, old, nid, newContext, newSelector;
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if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
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setDocument( context );
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}
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context = context || document;
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results = results || [];
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if ( !selector || typeof selector !== "string" ) {
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return results;
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}
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if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
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return [];
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}
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if ( documentIsHTML && !seed ) {
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// Shortcuts
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if ( (match = rquickExpr.exec( selector )) ) {
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// Speed-up: Sizzle("#ID")
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if ( (m = match[1]) ) {
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if ( nodeType === 9 ) {
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elem = context.getElementById( m );
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// Check parentNode to catch when Blackberry 4.6 returns
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// nodes that are no longer in the document (jQuery #6963)
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if ( elem && elem.parentNode ) {
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// Handle the case where IE, Opera, and Webkit return items
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// by name instead of ID
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if ( elem.id === m ) {
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results.push( elem );
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return results;
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}
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} else {
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return results;
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}
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} else {
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// Context is not a document
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if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
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contains( context, elem ) && elem.id === m ) {
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results.push( elem );
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return results;
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}
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}
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// Speed-up: Sizzle("TAG")
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} else if ( match[2] ) {
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push.apply( results, context.getElementsByTagName( selector ) );
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return results;
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// Speed-up: Sizzle(".CLASS")
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} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {
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push.apply( results, context.getElementsByClassName( m ) );
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return results;
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}
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}
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// QSA path
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if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
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nid = old = expando;
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newContext = context;
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newSelector = nodeType === 9 && selector;
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// qSA works strangely on Element-rooted queries
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// We can work around this by specifying an extra ID on the root
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// and working up from there (Thanks to Andrew Dupont for the technique)
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// IE 8 doesn't work on object elements
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if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
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groups = tokenize( selector );
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if ( (old = context.getAttribute("id")) ) {
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nid = old.replace( rescape, "\\$&" );
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} else {
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context.setAttribute( "id", nid );
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}
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nid = "[id='" + nid + "'] ";
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i = groups.length;
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while ( i-- ) {
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groups[i] = nid + toSelector( groups[i] );
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}
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newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context;
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newSelector = groups.join(",");
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}
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if ( newSelector ) {
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try {
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push.apply( results,
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newContext.querySelectorAll( newSelector )
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);
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return results;
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} catch(qsaError) {
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} finally {
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if ( !old ) {
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context.removeAttribute("id");
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}
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}
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}
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}
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}
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// All others
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return select( selector.replace( rtrim, "$1" ), context, results, seed );
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}
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/**
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* Create key-value caches of limited size
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* @returns {Function(string, Object)} Returns the Object data after storing it on itself with
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* property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
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* deleting the oldest entry
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*/
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function createCache() {
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var keys = [];
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function cache( key, value ) {
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// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
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if ( keys.push( key + " " ) > Expr.cacheLength ) {
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// Only keep the most recent entries
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delete cache[ keys.shift() ];
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}
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return (cache[ key + " " ] = value);
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}
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return cache;
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}
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/**
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* Mark a function for special use by Sizzle
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* @param {Function} fn The function to mark
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*/
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function markFunction( fn ) {
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fn[ expando ] = true;
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return fn;
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}
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/**
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* Support testing using an element
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* @param {Function} fn Passed the created div and expects a boolean result
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*/
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function assert( fn ) {
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var div = document.createElement("div");
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try {
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return !!fn( div );
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} catch (e) {
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return false;
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} finally {
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// Remove from its parent by default
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if ( div.parentNode ) {
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div.parentNode.removeChild( div );
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}
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// release memory in IE
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div = null;
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}
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}
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/**
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* Adds the same handler for all of the specified attrs
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* @param {String} attrs Pipe-separated list of attributes
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* @param {Function} handler The method that will be applied
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*/
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function addHandle( attrs, handler ) {
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var arr = attrs.split("|"),
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i = attrs.length;
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while ( i-- ) {
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Expr.attrHandle[ arr[i] ] = handler;
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}
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}
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/**
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* Checks document order of two siblings
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* @param {Element} a
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* @param {Element} b
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* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
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*/
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function siblingCheck( a, b ) {
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var cur = b && a,
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diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
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( ~b.sourceIndex || MAX_NEGATIVE ) -
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( ~a.sourceIndex || MAX_NEGATIVE );
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// Use IE sourceIndex if available on both nodes
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if ( diff ) {
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return diff;
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}
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// Check if b follows a
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if ( cur ) {
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while ( (cur = cur.nextSibling) ) {
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if ( cur === b ) {
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return -1;
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}
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}
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}
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return a ? 1 : -1;
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}
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/**
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* Returns a function to use in pseudos for input types
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* @param {String} type
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*/
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function createInputPseudo( type ) {
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return function( elem ) {
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var name = elem.nodeName.toLowerCase();
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return name === "input" && elem.type === type;
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};
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}
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/**
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* Returns a function to use in pseudos for buttons
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* @param {String} type
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*/
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function createButtonPseudo( type ) {
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return function( elem ) {
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var name = elem.nodeName.toLowerCase();
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return (name === "input" || name === "button") && elem.type === type;
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};
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}
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/**
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* Returns a function to use in pseudos for positionals
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* @param {Function} fn
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*/
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function createPositionalPseudo( fn ) {
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return markFunction(function( argument ) {
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argument = +argument;
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return markFunction(function( seed, matches ) {
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var j,
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matchIndexes = fn( [], seed.length, argument ),
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i = matchIndexes.length;
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// Match elements found at the specified indexes
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while ( i-- ) {
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if ( seed[ (j = matchIndexes[i]) ] ) {
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seed[j] = !(matches[j] = seed[j]);
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}
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}
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});
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});
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}
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/**
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* Checks a node for validity as a Sizzle context
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* @param {Element|Object=} context
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* @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
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*/
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function testContext( context ) {
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return context && typeof context.getElementsByTagName !== strundefined && context;
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}
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// Expose support vars for convenience
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support = Sizzle.support = {};
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/**
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* Detects XML nodes
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* @param {Element|Object} elem An element or a document
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* @returns {Boolean} True iff elem is a non-HTML XML node
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*/
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isXML = Sizzle.isXML = function( elem ) {
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// documentElement is verified for cases where it doesn't yet exist
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// (such as loading iframes in IE - #4833)
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var documentElement = elem && (elem.ownerDocument || elem).documentElement;
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return documentElement ? documentElement.nodeName !== "HTML" : false;
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};
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/**
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* Sets document-related variables once based on the current document
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* @param {Element|Object} [doc] An element or document object to use to set the document
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* @returns {Object} Returns the current document
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*/
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setDocument = Sizzle.setDocument = function( node ) {
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var hasCompare,
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doc = node ? node.ownerDocument || node : preferredDoc,
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parent = doc.defaultView;
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// If no document and documentElement is available, return
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if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
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return document;
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}
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// Set our document
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document = doc;
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docElem = doc.documentElement;
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// Support tests
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documentIsHTML = !isXML( doc );
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|
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// Support: IE>8
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// If iframe document is assigned to "document" variable and if iframe has been reloaded,
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// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
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// IE6-8 do not support the defaultView property so parent will be undefined
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if ( parent && parent !== parent.top ) {
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// IE11 does not have attachEvent, so all must suffer
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if ( parent.addEventListener ) {
|
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parent.addEventListener( "unload", function() {
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setDocument();
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}, false );
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} else if ( parent.attachEvent ) {
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parent.attachEvent( "onunload", function() {
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setDocument();
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});
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}
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}
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|
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/* Attributes
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|
---------------------------------------------------------------------- */
|
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|
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// Support: IE<8
|
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// Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)
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support.attributes = assert(function( div ) {
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div.className = "i";
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return !div.getAttribute("className");
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});
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|
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/* getElement(s)By*
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|
---------------------------------------------------------------------- */
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|
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// Check if getElementsByTagName("*") returns only elements
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|
support.getElementsByTagName = assert(function( div ) {
|
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div.appendChild( doc.createComment("") );
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return !div.getElementsByTagName("*").length;
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});
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|
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// Check if getElementsByClassName can be trusted
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support.getElementsByClassName = rnative.test( doc.getElementsByClassName ) && assert(function( div ) {
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div.innerHTML = "<div class='a'></div><div class='a i'></div>";
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|
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// Support: Safari<4
|
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// Catch class over-caching
|
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div.firstChild.className = "i";
|
|
// Support: Opera<10
|
|
// Catch gEBCN failure to find non-leading classes
|
|
return div.getElementsByClassName("i").length === 2;
|
|
});
|
|
|
|
// 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 ( typeof context.getElementsByClassName !== strundefined && 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 msallowclip=''><option selected=''></option></select>";
|
|
|
|
// Support: IE8, Opera 11-12.16
|
|
// Nothing should be selected when empty strings follow ^= or $= or *=
|
|
// The test attribute must be unknown in Opera but "safe" for WinRT
|
|
// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
|
|
if ( div.querySelectorAll("[msallowclip^='']").length ) {
|
|
rbuggyQSA.push( "[*^$]=" + 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 ) {
|
|
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
|
|
// 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
|
|
if ( typeof define === "function" && define.amd ) {
|
|
define(function() { return Sizzle; });
|
|
// Sizzle requires that there be a global window in Common-JS like environments
|
|
} else if ( typeof module !== "undefined" && module.exports ) {
|
|
module.exports = Sizzle;
|
|
} else {
|
|
window.Sizzle = Sizzle;
|
|
}
|
|
// EXPOSE
|
|
|
|
|
|
(function(jQuery){
|
|
jQuery.find = Sizzle;
|
|
jQuery.expr = Sizzle.selectors;
|
|
jQuery.expr[":"] = jQuery.expr.pseudos;
|
|
jQuery.unique = Sizzle.uniqueSort;
|
|
jQuery.text = Sizzle.getText;
|
|
jQuery.isXMLDoc = Sizzle.isXML;
|
|
jQuery.contains = Sizzle.contains;
|
|
webshims.isReady('sizzle', true);
|
|
})(window.webshims && window.webshims.$ || window.jQuery, window.Sizzle);
|
|
})( window );
|