agenda-libre-ruby/public/webshims/shims/mediaelement-core.js

(function(webshims){
	"use strict";
	var support = webshims.support;
	var hasNative = support.mediaelement;
	var supportsLoop = false;
	var bugs = webshims.bugs;
	var swfType = 'mediaelement-jaris';
	var loadSwf = function(){
		webshims.ready(swfType, function(){
			if(!webshims.mediaelement.createSWF){
				webshims.mediaelement.loadSwf = true;
				webshims.reTest([swfType], hasNative);
			}
		});
	};

	var wsCfg = webshims.cfg;
	var options = wsCfg.mediaelement;
	var isIE = navigator.userAgent.indexOf('MSIE') != -1;
	if(!options){
		webshims.error("mediaelement wasn't implemented but loaded");
		return;
	}

	if(hasNative){
		var videoElem = document.createElement('video');
		support.videoBuffered = ('buffered' in videoElem);
		support.mediaDefaultMuted = ('defaultMuted' in videoElem);
		supportsLoop = ('loop' in videoElem);
		support.mediaLoop = supportsLoop;

		webshims.capturingEvents(['play', 'playing', 'waiting', 'paused', 'ended', 'durationchange', 'loadedmetadata', 'canplay', 'volumechange']);
		
		if( !support.videoBuffered || !supportsLoop || (!support.mediaDefaultMuted && isIE && 'ActiveXObject' in window) ){
			webshims.addPolyfill('mediaelement-native-fix', {
				d: ['dom-support']
			});
			webshims.loader.loadList(['mediaelement-native-fix']);
		}
	}
	
	if(support.track && !bugs.track){
		(function(){
			if(!bugs.track){

				if(window.VTTCue && !window.TextTrackCue){
					window.TextTrackCue = window.VTTCue;
				} else if(!window.VTTCue){
					window.VTTCue = window.TextTrackCue;
				}

				try {
					new VTTCue(2, 3, '');
				} catch(e){
					bugs.track = true;
				}
			}
		})();
	}

	if(window.CanvasRenderingContext2D && CanvasRenderingContext2D.prototype){
		CanvasRenderingContext2D.prototype.wsImageComplete = function(cb){
			cb.call(this, this);
		};
	}

webshims.register('mediaelement-core', function($, webshims, window, document, undefined, options){
	var hasSwf = swfmini.hasFlashPlayerVersion('11.3');
	var mediaelement = webshims.mediaelement;
	var allowYtLoading = false;
	
	mediaelement.parseRtmp = function(data){
		var src = data.src.split('://');
		var paths = src[1].split('/');
		var i, len, found;
		data.server = src[0]+'://'+paths[0]+'/';
		data.streamId = [];
		for(i = 1, len = paths.length; i < len; i++){
			if(!found && paths[i].indexOf(':') !== -1){
				paths[i] = paths[i].split(':')[1];
				found = true;
			}
			if(!found){
				data.server += paths[i]+'/';
			} else {
				data.streamId.push(paths[i]);
			}
		}
		if(!data.streamId.length){
			webshims.error('Could not parse rtmp url');
		}
		data.streamId = data.streamId.join('/');
	};

	var getSrcObj = function(elem, nodeName){
		elem = $(elem);
		var src = {src: elem.attr('src') || '', elem: elem, srcProp: elem.prop('src')};
		var tmp;
		
		if(!src.src){return src;}
		
		tmp = elem.attr('data-server');
		if(tmp != null){
			src.server = tmp;
		}
		
		tmp = elem.attr('type') || elem.attr('data-type');
		if(tmp){
			src.type = tmp;
			src.container = $.trim(tmp.split(';')[0]);
		} else {
			if(!nodeName){
				nodeName = elem[0].nodeName.toLowerCase();
				if(nodeName == 'source'){
					nodeName = (elem.closest('video, audio')[0] || {nodeName: 'video'}).nodeName.toLowerCase();
				}
			}
			if(src.server){
				src.type = nodeName+'/rtmp';
				src.container = nodeName+'/rtmp';
			} else {
				
				tmp = mediaelement.getTypeForSrc( src.src, nodeName, src );
				
				if(tmp){
					src.type = tmp;
					src.container = tmp;
				}
			}
		}

		tmp = elem.attr('media');
		if(tmp){
			src.media = tmp;
		}
		if(src.type == 'audio/rtmp' || src.type == 'video/rtmp'){
			if(src.server){
				src.streamId = src.src;
			} else {
				mediaelement.parseRtmp(src);
			}
		}
		return src;
	};
	
	
	
	var hasYt = !hasSwf && ('postMessage' in window) && hasNative;
	
	var loadTrackUi = function(){
		if(loadTrackUi.loaded){return;}
		loadTrackUi.loaded = true;
		if(!options.noAutoTrack){
			webshims.ready('WINDOWLOAD', function(){
				loadThird();
				webshims.loader.loadList(['track-ui']);
			});
		}
	};

	var loadYt = (function(){
		var loaded;
		return function(){
			if(loaded || !hasYt){return;}
			loaded = true;
			if(allowYtLoading){
				webshims.loader.loadScript("https://www.youtube.com/player_api");
			}
			$(function(){
				webshims._polyfill(["mediaelement-yt"]);
			});
		};
	})();
	var loadThird = function(){
		if(hasSwf){
			loadSwf();
		} else {
			loadYt();
		}
	};

	
	webshims.addPolyfill('mediaelement-yt', {
		test: !hasYt,
		d: ['dom-support']
	});
	

	
	mediaelement.mimeTypes = {
		audio: {
				//ogm shouldn´t be used!
				'audio/ogg': ['ogg','oga', 'ogm'],
				'audio/ogg;codecs="opus"': 'opus',
				'audio/mpeg': ['mp2','mp3','mpga','mpega'],
				'audio/mp4': ['mp4','mpg4', 'm4r', 'm4a', 'm4p', 'm4b', 'aac'],
				'audio/wav': ['wav'],
				'audio/3gpp': ['3gp','3gpp'],
				'audio/webm': ['webm'],
				'audio/fla': ['flv', 'f4a', 'fla'],
				'application/x-mpegURL': ['m3u8', 'm3u']
			},
			video: {
				//ogm shouldn´t be used!
				'video/ogg': ['ogg','ogv', 'ogm'],
				'video/mpeg': ['mpg','mpeg','mpe'],
				'video/mp4': ['mp4','mpg4', 'm4v'],
				'video/quicktime': ['mov','qt'],
				'video/x-msvideo': ['avi'],
				'video/x-ms-asf': ['asf', 'asx'],
				'video/flv': ['flv', 'f4v'],
				'video/3gpp': ['3gp','3gpp'],
				'video/webm': ['webm'],
				'application/x-mpegURL': ['m3u8', 'm3u'],
				'video/MP2T': ['ts']
			}
		}
	;
	
	mediaelement.mimeTypes.source =  $.extend({}, mediaelement.mimeTypes.audio, mediaelement.mimeTypes.video);
	
	mediaelement.getTypeForSrc = function(src, nodeName){
		if(src.indexOf('youtube.com/watch?') != -1 || src.indexOf('youtube.com/v/') != -1){
			return 'video/youtube';
		}

		if(!src.indexOf('mediastream:') || !src.indexOf('blob:http')){
			return 'usermedia';
		}

		if(!src.indexOf('webshimstream')){
			return 'jarisplayer/stream';
		}

		if(!src.indexOf('rtmp')){
			return nodeName+'/rtmp';
		}
		src = src.split('?')[0].split('#')[0].split('.');
		src = src[src.length - 1];
		var mt;
		
		$.each(mediaelement.mimeTypes[nodeName], function(mimeType, exts){
			if(exts.indexOf(src) !== -1){
				mt = mimeType;
				return false;
			}
		});
		return mt;
	};
	
	
	mediaelement.srces = function(mediaElem){
		var srces = [];
		mediaElem = $(mediaElem);
		var nodeName = mediaElem[0].nodeName.toLowerCase();
		var src = getSrcObj(mediaElem, nodeName);

		if(!src.src){
			$('source', mediaElem).each(function(){
				src = getSrcObj(this, nodeName);
				if(src.src){srces.push(src);}
			});
		} else {
			srces.push(src);
		}
		return srces;
	};
	
	mediaelement.swfMimeTypes = ['video/3gpp', 'video/x-msvideo', 'video/quicktime', 'video/x-m4v', 'video/mp4', 'video/m4p', 'video/x-flv', 'video/flv', 'audio/mpeg', 'audio/aac', 'audio/mp4', 'audio/x-m4a', 'audio/m4a', 'audio/mp3', 'audio/x-fla', 'audio/fla', 'youtube/flv', 'video/jarisplayer', 'jarisplayer/jarisplayer', 'jarisplayer/stream', 'video/youtube', 'video/rtmp', 'audio/rtmp'];
	
	mediaelement.canThirdPlaySrces = function(mediaElem, srces){
		var ret = '';
		if(hasSwf || hasYt){
			mediaElem = $(mediaElem);
			srces = srces || mediaelement.srces(mediaElem);
			$.each(srces, function(i, src){
				if(src.container && src.src && ((hasSwf && mediaelement.swfMimeTypes.indexOf(src.container) != -1) || (hasYt && src.container == 'video/youtube'))){
					ret = src;
					return false;
				}
			});
			
		}
		
		return ret;
	};
	
	var nativeCanPlayType = {};
	mediaelement.canNativePlaySrces = function(mediaElem, srces){
		var ret = '';
		if(hasNative){
			mediaElem = $(mediaElem);
			var nodeName = (mediaElem[0].nodeName || '').toLowerCase();
			var nativeCanPlay = (nativeCanPlayType[nodeName] || {prop: {_supvalue: false}}).prop._supvalue || mediaElem[0].canPlayType;
			if(!nativeCanPlay){return ret;}
			srces = srces || mediaelement.srces(mediaElem);
			
			$.each(srces, function(i, src){
				if(src.type == 'usermedia' || (src.type && nativeCanPlay.call(mediaElem[0], src.type)) ){
					ret = src;
					return false;
				}
			});
		}
		return ret;
	};
	var emptyType = (/^\s*application\/octet\-stream\s*$/i);
	var getRemoveEmptyType = function(){
		var ret = emptyType.test($.attr(this, 'type') || '');
		if(ret){
			$(this).removeAttr('type');
		}
		return ret;
	};
	mediaelement.setError = function(elem, message){
		if($('source', elem).filter(getRemoveEmptyType).length){
			webshims.error('"application/octet-stream" is a useless mimetype for audio/video. Please change this attribute.');
			try {
				$(elem).mediaLoad();
			} catch(er){}
		} else {
			if(!message){
				message = "can't play sources";
			}
			$(elem).pause().data('mediaerror', message);
			webshims.error('mediaelementError: '+ message +'. Run the following line in your console to get more info: webshim.mediaelement.loadDebugger();');
			setTimeout(function(){
				if($(elem).data('mediaerror')){
					$(elem).addClass('media-error').trigger('mediaerror');
				}
			}, 1);
		}
		
		
	};
	
	var handleThird = (function(){
		var requested;
		var readyType = hasSwf ? swfType : 'mediaelement-yt';
		return function( mediaElem, ret, data ){
			//readd to ready

			webshims.ready(readyType, function(){
				if(mediaelement.createSWF && $(mediaElem).parent()[0]){
					mediaelement.createSWF( mediaElem, ret, data );
				} else if(!requested) {
					requested = true;
					loadThird();
					
					handleThird( mediaElem, ret, data );
				}
			});
			if(!requested && hasYt && !mediaelement.createSWF){
				allowYtLoading = true;
				loadYt();
			}
		};
	})();

	var activate = {
		native: function(elem, src, data){
			if(data && data.isActive == 'third') {
				mediaelement.setActive(elem, 'html5', data);
			}
		},
		third: handleThird
	};

	var stepSources = function(elem, data, srces){
		var i, src;
		var testOrder = [{test: 'canNativePlaySrces', activate: 'native'}, {test: 'canThirdPlaySrces', activate: 'third'}];
		if(options.preferFlash || (data && data.isActive == 'third') ){
			testOrder.reverse();
		}
		for(i = 0; i < 2; i++){
			src = mediaelement[testOrder[i].test](elem, srces);
			if(src){
				activate[testOrder[i].activate](elem, src, data);
				break;
			}
		}

		if(!src){
			mediaelement.setError(elem, false);
			if(data && data.isActive == 'third') {
				mediaelement.setActive(elem, 'html5', data);
			}
		}
	};
	var stopParent = /^(?:embed|object|datalist|picture)$/i;
	var selectSource = function(elem, data){
		var baseData = webshims.data(elem, 'mediaelementBase') || webshims.data(elem, 'mediaelementBase', {});
		var _srces = mediaelement.srces(elem);
		var parent = elem.parentNode;
		
		clearTimeout(baseData.loadTimer);
		$(elem).removeClass('media-error');
		$.data(elem, 'mediaerror', false);
		
		if(!_srces.length || !parent || parent.nodeType != 1 || stopParent.test(parent.nodeName || '')){return;}
		data = data || webshims.data(elem, 'mediaelement');
		if(mediaelement.sortMedia){
			_srces.sort(mediaelement.sortMedia);
		}
		stepSources(elem, data, _srces);

	};
	mediaelement.selectSource = selectSource;
	
	
	$(document).on('ended', function(e){
		var data = webshims.data(e.target, 'mediaelement');
		if( supportsLoop && (!data || data.isActive == 'html5') && !$.prop(e.target, 'loop')){return;}
		setTimeout(function(){
			if( $.prop(e.target, 'paused') || !$.prop(e.target, 'loop') ){return;}
			$(e.target).prop('currentTime', 0).play();
		});
		
	});
	
	var handleMedia = false;

	var initMediaElements = function(){
		var testFixMedia = function(){

			if(webshims.implement(this, 'mediaelement')){
				selectSource(this);
				if(!support.mediaDefaultMuted && $.attr(this, 'muted') != null){
					$.prop(this, 'muted', true);
				}

			}
		};
		
		webshims.ready('dom-support', function(){
			handleMedia = true;
			
			if(!supportsLoop){
				webshims.defineNodeNamesBooleanProperty(['audio', 'video'], 'loop');
			}
			
			['audio', 'video'].forEach(function(nodeName){
				var supLoad;
				supLoad = webshims.defineNodeNameProperty(nodeName, 'load',  {
					prop: {
						value: function(){
							var data = webshims.data(this, 'mediaelement');

							selectSource(this, data);
							if(hasNative && (!data || data.isActive == 'html5') && supLoad.prop._supvalue){
								supLoad.prop._supvalue.apply(this, arguments);
							}
							if(!loadTrackUi.loaded && this.querySelector('track')){
								loadTrackUi();
							}
							$(this).triggerHandler('wsmediareload');
						}
					}
				});

				nativeCanPlayType[nodeName] = webshims.defineNodeNameProperty(nodeName, 'canPlayType',  {
					prop: {
						value: function(type){
							var ret = '';
							if(hasNative && nativeCanPlayType[nodeName].prop._supvalue){
								ret = nativeCanPlayType[nodeName].prop._supvalue.call(this, type);
								if(ret == 'no'){
									ret = '';
								}
							}
							if(!ret && hasSwf){
								type = $.trim((type || '').split(';')[0]);
								if(mediaelement.swfMimeTypes.indexOf(type) != -1){
									ret = 'maybe';
								}
							}
							if(!ret && hasYt && type == 'video/youtube'){
								ret = 'maybe';
							}
							return ret;
						}
					}
				});
			});

			
			webshims.onNodeNamesPropertyModify(['audio', 'video'], ['src', 'poster'], {
				set: function(){
					var elem = this;
					var baseData = webshims.data(elem, 'mediaelementBase') || webshims.data(elem, 'mediaelementBase', {});
					clearTimeout(baseData.loadTimer);
					baseData.loadTimer = setTimeout(function(){
						selectSource(elem);
						elem = null;
					}, 9);
				}
			});
			
			
			webshims.addReady(function(context, insertedElement){
				var media = $('video, audio', context)
					.add(insertedElement.filter('video, audio'))
					.each(testFixMedia)
				;
				if(!loadTrackUi.loaded && $('track', media).length){
					loadTrackUi();
				}
				media = null;
			});
		});
		
		if(hasNative && !handleMedia){
			webshims.addReady(function(context, insertedElement){
				if(!handleMedia){
					$('video, audio', context)
						.add(insertedElement.filter('video, audio'))
						.each(function(){
							if(!mediaelement.canNativePlaySrces(this)){
								allowYtLoading = true;
								loadThird();
								handleMedia = true;
								return false;
							}
						})
					;
				}
			});
		}
	};

	mediaelement.loadDebugger = function(){
		webshims.ready('dom-support', function(){
			webshims.loader.loadScript('mediaelement-debug');
		});
	};

	if(({noCombo: 1, media: 1})[webshims.cfg.debug]){
		$(document).on('mediaerror', function(e){
			mediaelement.loadDebugger();
		});
	}

	//set native implementation ready, before swf api is retested
	if(hasNative){
		webshims.isReady('mediaelement-core', true);
		initMediaElements();
		webshims.ready('WINDOWLOAD mediaelement', loadThird);
	} else {
		webshims.ready(swfType, initMediaElements);
	}
	webshims.ready('track', loadTrackUi);

	if(document.readyState == 'complete'){
		webshims.isReady('WINDOWLOAD', true);
	}
});

})(webshims);