Media: add a class to the <script> tag for the JSON encoded playlist data so it can be easily selected in WPPlaylistView. Props SergeyBiryukov, fixes #29383

Built from https://develop.svn.wordpress.org/trunk@29660


git-svn-id: http://core.svn.wordpress.org/trunk@29434 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/mediaelement/wp-playlist.js

@@ -7,7 +7,7 @@
 		initialize : function (options) {
 			this.index = 0;
 			this.settings = {};
-			this.data = options.metadata || $.parseJSON( this.$('script').html() );
+			this.data = options.metadata || $.parseJSON( this.$('script.wp-playlist-script').html() );
 			this.playerNode = this.$( this.data.type );
 
 			this.tracks = new Backbone.Collection( this.data.tracks );

wp-includes/media.php

@@ -1399,7 +1399,7 @@ function wp_playlist_shortcode( $attr ) {
 	}
 	?></ol>
 	</noscript>
-	<script type="application/json"><?php echo json_encode( $data ) ?></script>
+	<script type="application/json" class="wp-playlist-script"><?php echo json_encode( $data ) ?></script>
 </div>
 	<?php
 	return ob_get_clean();