<!DOCTYPE HTML>
<html>
<head>
  <script type="application/javascript" src="mediaStreamPlayback.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
  createHTML({
    title: "getUserMedia Basic Tabshare Test",
    bug: "1193075"
  });
  /**
   * Run a test to verify that we can complete a start and stop media playback
   * cycle for a tabshare MediaStream on a video HTMLMediaElement.
   *
   * Additionally, exercise applyConstraints code for tabshare viewport offset.
   */
  runTest(function () {
    var testVideo = createMediaElement('video', 'testVideo');

    return Promise.resolve()
      .then(() => pushPrefs(["media.getusermedia.browser.enabled", true]))
      .then(() => {
        SpecialPowers.wrap(document).notifyUserGestureActivation();
        return getUserMedia({
          video: { mediaSource: "browser",
                   scrollWithPage: true },
        });
      })
      .then(stream => {
        var playback = new MediaStreamPlayback(testVideo, stream);
        return playback.playMedia(false);
      })
      .then(() => getUserMedia({
        video: {
          mediaSource: "browser",
          viewportOffsetX: 0,
          viewportOffsetY: 0,
          viewportWidth: 100,
          viewportHeight: 100
        },
      }))
      .then(stream => {
        var playback = new MediaStreamPlayback(testVideo, stream);
        playback.startMedia(false);
        return playback.verifyPlaying()
          .then(() => Promise.all([
            () => testVideo.srcObject.getVideoTracks()[0].applyConstraints({
              mediaSource: "browser",
              viewportOffsetX: 10,
              viewportOffsetY: 50,
              viewportWidth: 90,
              viewportHeight: 50
            }),
            () => listenUntil(testVideo, "resize", () => true)
          ]))
          .then(() => playback.verifyPlaying()) // still playing
          .then(() => playback.stopTracksForStreamInMediaPlayback())
          .then(() => playback.detachFromMediaElement());
      });
  });

</script>
</pre>
</body>
</html>
