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<title>[27450] trunk/src/wp-includes/js: Support the `autoplay` attribute, even when the plugin type for a MediaElement instance is Flash.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/27450">27450</a></dd>
<dt>Author</dt> <dd>wonderboymusic</dd>
<dt>Date</dt> <dd>2014-03-07 05:51:25 +0000 (Fri, 07 Mar 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Support the `autoplay` attribute, even when the plugin type for a MediaElement instance is Flash. In the media modal, `wp.media.view.VideoDetails` and `wp.media.view.AudioDetails` now extend a unified `wp.media.view.MediaDetails` class which contains all of the player creation and destruction logic. The `remove()` method mimics the `mejs.MediaElementPlayer.remove()` method, but does not re-add the audio/video tag to the DOM. The MEjs method is especially problematic when the tag has `autoplay="true"` and the view has been detached but not destroyed.

Fixes <a href="http://core.trac.wordpress.org/ticket/25077">#25077</a>.
See <a href="http://core.trac.wordpress.org/ticket/27016">#27016</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesjsmediaviewsjs">trunk/src/wp-includes/js/media-views.js</a></li>
<li><a href="#trunksrcwpincludesjsmediaelementwpmediaelementjs">trunk/src/wp-includes/js/mediaelement/wp-mediaelement.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesjsmediaviewsjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/js/media-views.js (27449 => 27450)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/js/media-views.js  2014-03-07 03:09:00 UTC (rev 27449)
+++ trunk/src/wp-includes/js/media-views.js     2014-03-07 05:51:25 UTC (rev 27450)
</span><span class="lines">@@ -6370,7 +6370,7 @@
</span><span class="cx">  });
</span><span class="cx"> 
</span><span class="cx">  /**
</span><del>-        * wp.media.view.AudioDetails
</del><ins>+         * wp.media.view.MediaDetails
</ins><span class="cx">    *
</span><span class="cx">   * @contructor
</span><span class="cx">   * @augments wp.media.view.Settings.AttachmentDisplay
</span><span class="lines">@@ -6379,12 +6379,9 @@
</span><span class="cx">   * @augments wp.Backbone.View
</span><span class="cx">   * @augments Backbone.View
</span><span class="cx">   */
</span><del>-       media.view.AudioDetails = media.view.Settings.AttachmentDisplay.extend({
-               className: 'audio-details',
-               template:  media.template('audio-details'),
-
</del><ins>+        media.view.MediaDetails = media.view.Settings.AttachmentDisplay.extend({
</ins><span class="cx">           initialize: function() {
</span><del>-                       _.bindAll(this, 'player', 'close');
</del><ins>+                        _.bindAll(this, 'success', 'close');
</ins><span class="cx"> 
</span><span class="cx">                  this.listenTo( this.controller, 'close', this.close );
</span><span class="cx"> 
</span><span class="lines">@@ -6403,17 +6400,75 @@
</span><span class="cx">                  }, this.options );
</span><span class="cx">          },
</span><span class="cx"> 
</span><ins>+               prepareSrc : function (media) {
+                       media.src = [
+                               media.src,
+                               media.src.indexOf('?') > -1 ? '&' : '?',
+                               (new Date()).getTime()
+                       ].join('');
+
+                       return media;
+               },
+
+               setPlayer : function () {
+                       this.player = false;
+               },
+
+               /**
+                * Override the MediaElement method for removing a player.
+                *      MediaElement tries to pull the audio/video tag out of
+                *      its container and re-add it to the DOM.
+                */
+               remove: function() {
+                       var t = this.player, featureIndex, feature;
+
+                       // invoke features cleanup
+                       for ( featureIndex in t.options.features ) {
+                               feature = t.options.features[featureIndex];
+                               if ( t['clean' + feature] ) {
+                                       try {
+                                               t['clean' + feature](t);
+                                       } catch (e) {}
+                               }
+                       }
+
+                       if ( ! t.isDynamic ) {
+                               t.$node.remove();
+                       }
+
+                       if ( 'native' !== t.media.pluginType ) {
+                               t.media.remove();
+                       }
+
+                       delete mejs.players[t.id];
+
+                       t.container.remove();
+                       t.globalUnbind();
+                       delete t.node.player;
+               },
+
</ins><span class="cx">           close : function() {
</span><del>-                       this.mejs.pause();
</del><ins>+                        if ( this.player ) {
+                               this.mejs.pause();
+                               this.remove();
+                       }
</ins><span class="cx">           },
</span><span class="cx"> 
</span><del>-               player : function (mejs) {
</del><ins>+                success : function (mejs) {
+                       var autoplay = mejs.attributes.autoplay && 'false' !== mejs.attributes.autoplay;
+
+                       if ( 'flash' === mejs.pluginType && autoplay ) {
+                               mejs.addEventListener( 'canplay', function () {
+                                       mejs.play();
+                               }, false );
+                       }
+
</ins><span class="cx">                   this.mejs = mejs;
</span><span class="cx">          },
</span><span class="cx"> 
</span><span class="cx">          render: function() {
</span><span class="cx">                  var self = this, settings = {
</span><del>-                               success : this.player
</del><ins>+                                success : this.success
</ins><span class="cx">                   };
</span><span class="cx"> 
</span><span class="cx">                  if ( ! _.isUndefined( window._wpmejsSettings ) ) {
</span><span class="lines">@@ -6423,7 +6478,7 @@
</span><span class="cx">                  media.view.Settings.AttachmentDisplay.prototype.render.apply( this, arguments );
</span><span class="cx">                  setTimeout( function() { self.resetFocus(); }, 10 );
</span><span class="cx"> 
</span><del>-                       new MediaElementPlayer( this.$('.wp-audio-shortcode').get(0), settings );
</del><ins>+                        this.setPlayer( settings );
</ins><span class="cx"> 
</span><span class="cx">                  return this;
</span><span class="cx">          },
</span><span class="lines">@@ -6434,73 +6489,52 @@
</span><span class="cx">  });
</span><span class="cx"> 
</span><span class="cx">  /**
</span><del>-        * wp.media.view.VideoDetails
</del><ins>+         * wp.media.view.AudioDetails
</ins><span class="cx">    *
</span><span class="cx">   * @contructor
</span><ins>+        * @augments wp.media.view.MediaDetails
</ins><span class="cx">    * @augments wp.media.view.Settings.AttachmentDisplay
</span><span class="cx">   * @augments wp.media.view.Settings
</span><span class="cx">   * @augments wp.media.View
</span><span class="cx">   * @augments wp.Backbone.View
</span><span class="cx">   * @augments Backbone.View
</span><span class="cx">   */
</span><del>-       media.view.VideoDetails = media.view.Settings.AttachmentDisplay.extend({
-               className: 'video-details',
-               template:  media.template('video-details'),
</del><ins>+        media.view.AudioDetails = media.view.MediaDetails.extend({
+               className: 'audio-details',
+               template:  media.template('audio-details'),
</ins><span class="cx"> 
</span><del>-               initialize: function() {
-                       _.bindAll(this, 'success');
</del><ins>+                setPlayer: function( settings ) {
+                       var audio = this.$('.wp-audio-shortcode').get(0);
</ins><span class="cx"> 
</span><del>-                       this.listenTo( this.controller, 'close', this.close );
</del><ins>+                        audio = this.prepareSrc( audio );
</ins><span class="cx"> 
</span><del>-                       media.view.Settings.AttachmentDisplay.prototype.initialize.apply( this, arguments );
-               },
</del><ins>+                        this.player = new MediaElementPlayer( audio, settings );
+                       return this;
+               }
+       });
</ins><span class="cx"> 
</span><del>-               prepare: function() {
-                       var attachment = false;
</del><ins>+        /**
+        * wp.media.view.VideoDetails
+        *
+        * @contructor
+        * @augments wp.media.view.MediaDetails
+        * @augments wp.media.view.Settings.AttachmentDisplay
+        * @augments wp.media.view.Settings
+        * @augments wp.media.View
+        * @augments wp.Backbone.View
+        * @augments Backbone.View
+        */
+       media.view.VideoDetails = media.view.MediaDetails.extend({
+               className: 'video-details',
+               template:  media.template('video-details'),
</ins><span class="cx"> 
</span><del>-                       if ( this.model.attachment ) {
-                               attachment = this.model.attachment.toJSON();
-                       }
-                       return _.defaults({
-                               model: this.model.toJSON(),
-                               attachment: attachment
-                       }, this.options );
-               },
</del><ins>+                setPlayer: function( settings ) {
+                       var video = this.$('.wp-video-shortcode').get(0);
</ins><span class="cx"> 
</span><del>-               close : function() {
-                       this.mejs.pause();
-                       this.player.remove();
-               },
</del><ins>+                        video = this.prepareSrc( video );
</ins><span class="cx"> 
</span><del>-               success : function (mejs) {
-                       this.mejs = mejs;
-               },
-
-               render: function() {
-                       var video, self = this, settings = {
-                               success : this.success
-                       };
-
-                       if ( ! _.isUndefined( window._wpmejsSettings ) ) {
-                               settings.pluginPath = _wpmejsSettings.pluginPath;
-                       }
-
-                       media.view.Settings.AttachmentDisplay.prototype.render.apply( this, arguments );
-                       setTimeout( function() { self.resetFocus(); }, 10 );
-
-                       video = this.$('.wp-video-shortcode').get(0);
-                       video.src = [
-                               video.src,
-                               video.src.indexOf('?') > -1 ? '&' : '?',
-                               (new Date()).getTime()
-                       ].join('');
-
</del><span class="cx">                   this.player = new MediaElementPlayer( video, settings );
</span><span class="cx">                  return this;
</span><del>-               },
-
-               resetFocus: function() {
-                       this.$( '.embed-media-settings' ).scrollTop( 0 );
</del><span class="cx">           }
</span><span class="cx">  });
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunksrcwpincludesjsmediaelementwpmediaelementjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/js/mediaelement/wp-mediaelement.js (27449 => 27450)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/js/mediaelement/wp-mediaelement.js 2014-03-07 03:09:00 UTC (rev 27449)
+++ trunk/src/wp-includes/js/mediaelement/wp-mediaelement.js    2014-03-07 05:51:25 UTC (rev 27450)
</span><span class="lines">@@ -7,9 +7,19 @@
</span><span class="cx">  $(function () {
</span><span class="cx">          var settings = {};
</span><span class="cx"> 
</span><del>-               if ( typeof _wpmejsSettings !== 'undefined' )
</del><ins>+                if ( typeof _wpmejsSettings !== 'undefined' ) {
</ins><span class="cx">                   settings.pluginPath = _wpmejsSettings.pluginPath;
</span><ins>+               }
</ins><span class="cx"> 
</span><ins>+               settings.success = function (mejs) {
+                       var autoplay = mejs.attributes.autoplay && 'false' !== mejs.attributes.autoplay;
+                       if ( 'flash' === mejs.pluginType && autoplay ) {
+                               mejs.addEventListener( 'canplay', function () {
+                                       mejs.play();
+                               }, false );
+                       }
+               };
+
</ins><span class="cx">           $('.wp-audio-shortcode, .wp-video-shortcode').mediaelementplayer( settings );
</span><span class="cx">  });
</span><span class="cx"> 
</span></span></pre>
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