1 files changed, 35 insertions, 0 deletions
diff --git a/catapult/telemetry/telemetry/internal/actions/play.js b/catapult/telemetry/telemetry/internal/actions/play.js
new file mode 100644
index 00000000..c646d78a
--- /dev/null
+++ b/catapult/telemetry/telemetry/internal/actions/play.js
@@ -0,0 +1,35 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file performs actions on media elements.
+(function() {
+  function playMedia(selector) {
+    // Performs the "Play" action on media satisfying selector.
+    var mediaElements = window.__findMediaElements(selector);
+    for (var i = 0; i < mediaElements.length; i++) {
+      console.log('Playing element: ' + mediaElements[i].src);
+      play(mediaElements[i]);
+    }
+  }
+
+  function play(element) {
+    if (element instanceof HTMLMediaElement)
+      playHTML5Element(element);
+    else
+      throw new Error('Can not play non HTML5 media elements.');
+  }
+
+  function playHTML5Element(element) {
+    window.__registerHTML5ErrorEvents(element);
+    window.__registerHTML5EventCompleted(element, 'playing');
+    window.__registerHTML5EventCompleted(element, 'ended');
+
+    var willPlayEvent = document.createEvent('Event');
+    willPlayEvent.initEvent('willPlay', false, false);
+    element.dispatchEvent(willPlayEvent);
+    element.play();
+  }
+
+  window.__playMedia = playMedia;
+})();