track.js in webshims-rails-1.11.6

- old
+ new

@@ -316,13 +316,13 @@
 	
 	mediaelement.loadTextTrack = function(mediaelem, track, trackData, _default){
 		var loadEvents = 'play playing updatetrackdisplay';
 		var obj = trackData.track;
 		var load = function(){
-			var error, ajax, src;
+			var error, ajax, src, createAjax;
 			if(obj.mode != 'disabled' && $.attr(track, 'src') && (src = $.prop(track, 'src'))){
-				$(mediaelem).unbind(loadEvents, load);
+				$(mediaelem).off(loadEvents, load);
 				if(!trackData.readyState){
 					error = function(){
 						trackData.readyState = 3;
 						obj.cues = null;
 						obj.activeCues = obj.shimActiveCues = obj._shimActiveCues = null;
@@ -330,30 +330,38 @@
 					};
 					trackData.readyState = 1;
 					try {
 						obj.cues = mediaelement.createCueList();
 						obj.activeCues = obj.shimActiveCues = obj._shimActiveCues = mediaelement.createCueList();
-						ajax = $.ajax({
-							dataType: 'text',
-							url: src,
-							success: function(text){
-								if(ajax.getResponseHeader('content-type') != 'text/vtt'){
-									webshims.error('set the mime-type of your WebVTT files to text/vtt. see: http://dev.w3.org/html5/webvtt/#text/vtt');
-								}
-								mediaelement.parseCaptions(text, obj, function(cues){
-									if(cues && 'length' in cues){
-										trackData.readyState = 2;
-										$(track).triggerHandler('load');
-										$(mediaelem).triggerHandler('updatetrackdisplay');
-									} else {
-										error();
+						createAjax = function(){
+							ajax = $.ajax({
+								dataType: 'text',
+								url: src,
+								success: function(text){
+									if(ajax.getResponseHeader('content-type') != 'text/vtt'){
+										webshims.error('set the mime-type of your WebVTT files to text/vtt. see: http://dev.w3.org/html5/webvtt/#text/vtt');
 									}
-								});
-								
-							},
-							error: error
-						});
+									mediaelement.parseCaptions(text, obj, function(cues){
+										if(cues && 'length' in cues){
+											trackData.readyState = 2;
+											$(track).triggerHandler('load');
+											$(mediaelem).triggerHandler('updatetrackdisplay');
+										} else {
+											error();
+										}
+									});
+									
+								},
+								error: error
+							});
+						};
+						if($.ajax){
+							createAjax();
+						} else {
+							webshims.ready('$ajax', createAjax);
+							webshims.loader.loadList(['$ajax']);
+						}
 					} catch(er){
 						error();
 						webshims.error(er);
 					}
 				}
@@ -362,11 +370,11 @@
 		trackData.readyState = 0;
 		obj.shimActiveCues = null;
 		obj._shimActiveCues = null;
 		obj.activeCues = null;
 		obj.cues = null;
-		$(mediaelem).unbind(loadEvents, load);
+		$(mediaelem).off(loadEvents, load);
 		$(mediaelem).on(loadEvents, load);
 		if(_default){
 			obj.mode = showTracks[obj.kind] ? 'showing' : 'hidden';
 			load();
 		}
@@ -781,22 +789,22 @@
 				return textTrack;
 			}
 		}
 	}, 'prop');
 
-	
-	$(document).on('emptied ended updatetracklist', function(e){
+	//wsmediareload
+	var thUpdateList = function(e){
 		if($(e.target).is('audio, video')){
 			var baseData = webshims.data(e.target, 'mediaelementBase');
 			if(baseData){
 				clearTimeout(baseData.updateTrackListTimer);
 				baseData.updateTrackListTimer = setTimeout(function(){
 					updateMediaTrackList.call(e.target, baseData);
 				}, 0);
 			}
 		}
-	});
+	};
 	
 	var getNativeReadyState = function(trackElem, textTrack){
 		return textTrack.readyState || trackElem.readyState;
 	};
 	var stopOriginalEvent = function(e){
@@ -832,9 +840,10 @@
 		$('video, audio', context)
 			.add(insertedMedia)
 			.each(function(){
 				updateMediaTrackList.call(this);
 			})
+			.on('emptied updatetracklist wsmediareload', thUpdateList)
 			.each(function(){
 				if(Modernizr.track){
 					var shimedTextTracks = $.prop(this, 'textTracks');
 					var origTextTracks = this.textTracks;
 					if(shimedTextTracks.length != origTextTracks.length){
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