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<title>[27871] trunk/src/wp-includes: Re-instantiate the `MediaElementPlayer` instance when switching mime types in playlists.</title>
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<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/27871">27871</a></dd>
<dt>Author</dt> <dd>wonderboymusic</dd>
<dt>Date</dt> <dd>2014-03-31 15:34:23 +0000 (Mon, 31 Mar 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Re-instantiate the `MediaElementPlayer` instance when switching mime types in playlists.

Fixes <a href="http://core.trac.wordpress.org/ticket/27608">#27608</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesjsmediaelementwpplaylistjs">trunk/src/wp-includes/js/mediaelement/wp-playlist.js</a></li>
<li><a href="#trunksrcwpincludesmediaphp">trunk/src/wp-includes/media.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesjsmediaelementwpplaylistjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/js/mediaelement/wp-playlist.js (27870 => 27871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/js/mediaelement/wp-playlist.js     2014-03-31 07:29:29 UTC (rev 27870)
+++ trunk/src/wp-includes/js/mediaelement/wp-playlist.js        2014-03-31 15:34:23 UTC (rev 27871)
</span><span class="lines">@@ -4,13 +4,9 @@
</span><span class="cx">  "use strict";
</span><span class="cx"> 
</span><span class="cx">  var WPPlaylistView = Backbone.View.extend({
</span><del>-               index : 0,
-
-               itemTemplate : wp.template('wp-playlist-item'),
-
</del><span class="cx">           initialize : function (options) {
</span><del>-                       var settings = {};
-
</del><ins>+                        this.index = 0;
+                       this.settings = {};
</ins><span class="cx">                   this.data = options.metadata || $.parseJSON( this.$('script').html() );
</span><span class="cx">                  this.playerNode = this.$( this.data.type );
</span><span class="cx"> 
</span><span class="lines">@@ -18,29 +14,59 @@
</span><span class="cx">                  this.current = this.tracks.first();
</span><span class="cx"> 
</span><span class="cx">                  if ( 'audio' === this.data.type ) {
</span><del>-                               this.currentTemplate = wp.template('wp-playlist-current-item');
</del><ins>+                                this.currentTemplate = wp.template( 'wp-playlist-current-item' );
</ins><span class="cx">                           this.currentNode = this.$( '.wp-playlist-current-item' );
</span><span class="cx">                  }
</span><span class="cx"> 
</span><span class="cx">                  this.renderCurrent();
</span><span class="cx"> 
</span><span class="cx">                  if ( this.data.tracklist ) {
</span><ins>+                               this.itemTemplate = wp.template( 'wp-playlist-item' );
</ins><span class="cx">                           this.playingClass = 'wp-playlist-playing';
</span><span class="cx">                          this.renderTracks();
</span><span class="cx">                  }
</span><span class="cx"> 
</span><del>-                       this.playerNode.attr( 'src', this.current.get('src') );
</del><ins>+                        this.playerNode.attr( 'src', this.current.get( 'src' ) );
</ins><span class="cx"> 
</span><del>-                       _.bindAll( this, 'bindPlayer', 'ended', 'clickTrack' );
</del><ins>+                        _.bindAll( this, 'bindPlayer', 'bindResetPlayer', 'setPlayer', 'ended', 'clickTrack' );
</ins><span class="cx"> 
</span><span class="cx">                  if ( ! _.isUndefined( window._wpmejsSettings ) ) {
</span><del>-                               settings.pluginPath = _wpmejsSettings.pluginPath;
</del><ins>+                                this.settings.pluginPath = _wpmejsSettings.pluginPath;
</ins><span class="cx">                   }
</span><del>-                       settings.success = this.bindPlayer;
</del><ins>+                        this.settings.success = this.bindPlayer;
+                       this.setPlayer();
+               },
</ins><span class="cx"> 
</span><del>-                       this._player = new MediaElementPlayer( this.playerNode.get(0), settings );
</del><ins>+                bindPlayer : function (mejs) {
+                       this.player = mejs;
+                       this.player.addEventListener( 'ended', this.ended );
</ins><span class="cx">           },
</span><span class="cx"> 
</span><ins>+               bindResetPlayer : function (mejs) {
+                       this.bindPlayer( mejs );
+                       this.playCurrentSrc();
+               },
+
+               setPlayer: function () {
+                       if ( this._player ) {
+                               this._player.pause();
+                               this._player.remove();
+                               this.playerNode = this.$( this.data.type );
+                               this.playerNode.prop( 'src', this.current.get( 'src' ) );
+                               this.settings.success = this.bindResetPlayer;
+                       }
+                       /**
+                        * This is also our bridge to the outside world
+                        */
+                       this._player = new MediaElementPlayer( this.playerNode.get(0), this.settings );
+               },
+
+               playCurrentSrc : function () {
+                       this.renderCurrent();
+                       this.player.load();
+                       this.player.play();
+               },
+
</ins><span class="cx">           renderCurrent : function () {
</span><span class="cx">                  var dimensions;
</span><span class="cx">                  if ( 'video' === this.data.type ) {
</span><span class="lines">@@ -79,11 +105,6 @@
</span><span class="cx">                  'click .wp-playlist-prev' : 'prev'
</span><span class="cx">          },
</span><span class="cx"> 
</span><del>-               bindPlayer : function (mejs) {
-                       this.player = mejs;
-                       this.player.addEventListener( 'ended', this.ended );
-               },
-
</del><span class="cx">           clickTrack : function (e) {
</span><span class="cx">                  this.index = this.$( '.wp-playlist-item' ).index( e.currentTarget );
</span><span class="cx">                  this.setCurrent();
</span><span class="lines">@@ -110,10 +131,17 @@
</span><span class="cx">          },
</span><span class="cx"> 
</span><span class="cx">          loadCurrent : function () {
</span><ins>+                       var last = this.playerNode.attr( 'src' ).split('.').pop(),
+                               current = this.current.get( 'src' ).split('.').pop();
+
</ins><span class="cx">                   this.player.pause();
</span><del>-                       this.playerNode.attr( 'src', this.current.get( 'src' ) );
-                       this.renderCurrent();
-                       this.player.load();
</del><ins>+
+                       if ( last !== current ) {
+                               this.setPlayer();
+                       } else {
+                               this.playerNode.prop( 'src', this.current.get( 'src' ) );
+                               this.playCurrentSrc();
+                       }
</ins><span class="cx">           },
</span><span class="cx"> 
</span><span class="cx">          setCurrent : function () {
</span><span class="lines">@@ -127,7 +155,6 @@
</span><span class="cx">                  }
</span><span class="cx"> 
</span><span class="cx">                  this.loadCurrent();
</span><del>-                       this.player.play();
</del><span class="cx">           }
</span><span class="cx">  });
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunksrcwpincludesmediaphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/media.php (27870 => 27871)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/media.php  2014-03-31 07:29:29 UTC (rev 27870)
+++ trunk/src/wp-includes/media.php     2014-03-31 15:34:23 UTC (rev 27871)
</span><span class="lines">@@ -2529,8 +2529,6 @@
</span><span class="cx">          'suggestedWidth' => __( 'Suggested width is %d pixels.' ),
</span><span class="cx">          'suggestedHeight' => __( 'Suggested height is %d pixels.' ),
</span><span class="cx"> 
</span><del>-               'mediaHTML5Text'        => __( 'Add alternate sources for maximum HTML5 playback:' ),
-
</del><span class="cx">           // Edit Audio
</span><span class="cx">          'audioDetailsTitle'     => __( 'Audio Details' ),
</span><span class="cx">          'audioReplaceTitle'     => __( 'Replace Audio' ),
</span></span></pre>
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