1 files changed, 67 insertions, 0 deletions
diff --git a/extensions/TimedMediaHandler/resources/ext.tmh.OgvJsSupport.js b/extensions/TimedMediaHandler/resources/ext.tmh.OgvJsSupport.js
new file mode 100644
index 00000000..af3fd9f5
--- /dev/null
+++ b/extensions/TimedMediaHandler/resources/ext.tmh.OgvJsSupport.js
@@ -0,0 +1,67 @@
+( function( $, mw ) {
+
+	var support = mw.OgvJsSupport = {
+		/**
+		 * Ensure that the OGVPlayer class is loaded before continuing.
+		 *
+		 * @return jQuery.Deferred
+		 */
+		loadOgvJs: function() {
+			return $.Deferred( function( deferred ) {
+				if ( typeof OGVPlayer === 'undefined' ) {
+					mw.loader.using( 'ext.tmh.OgvJs', function() {
+						OGVLoader.base = support.basePath();
+						deferred.resolve();
+					} );
+				} else {
+					deferred.resolve();
+				}
+			});
+		},
+
+		/**
+		 * Get the base path of ogv.js and friends.
+		 *
+		 * @return string
+		 */
+		basePath: function() {
+			var ext = mw.config.get( 'wgExtensionAssetsPath' ),
+				binPlayers = ext + '/TimedMediaHandler/MwEmbedModules/EmbedPlayer/binPlayers';
+			return binPlayers + '/ogv.js';
+		},
+
+		/**
+		 * Return a stub audio context
+		 *
+		 * This is used for iOS Safari to enable Web Audio by triggering an empty
+		 * audio output channel during a user input event handler. Without that,
+		 * audio is left disabled and won't work when we start things up after an
+		 * asynchronous code load.
+		 *
+		 * @return AudioContext
+		 */
+		initAudioContext: function() {
+			var AudioContext = window.AudioContext || window.webkitAudioContext;
+			if ( AudioContext ) {
+				var context = new AudioContext(),
+					node;
+				if ( context.createScriptProcessor ) {
+					node = context.createScriptProcessor( 1024, 0, 2 );
+				} else if ( context.createJavaScriptNode ) {
+					node = context.createJavaScriptNode( 1024, 0, 2 );
+				} else {
+					throw new Error( 'Bad version of web audio API?' );
+				}
+
+				// Don't actually run any audio, just start & stop the node
+				node.connect( context.destination );
+				node.disconnect();
+
+				return context;
+			} else {
+				return null;
+			}
+		}
+	};
+
+} )( jQuery, mediaWiki );