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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=881976
-->
<head>
  <meta charset='utf-8'>
  <title>Test for Bug 881976 - TextTrackCue Computed Position</title>
  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="content">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
  SimpleTest.waitForExplicitFinish();
  SpecialPowers.pushPrefEnv({"set": [["media.webvtt.regions.enabled", true]]},
    function() {
      var video = document.createElement("video");

      // Check if adding a text track manually sets the TextTrackList correctly.

      // HTMLTrackElement.textTrackList is an extension available only to
      // privileged code, so we need to access it through the SpecialPowers
      // object.
      video.addTextTrack("subtitles", "", "");
      is(SpecialPowers.unwrap(SpecialPowers.wrap(video.textTracks[0]).textTrackList),
          video.textTracks,
          "The Track's TextTrackList should be the Video's TextTrackList.");


      // Check if loading a Track via a TrackElement sets the TextTrackList correctly.
      video.src = "seek.webm";
      video.preload = "auto";

      var trackElement = document.createElement("track");
      trackElement.src = "basic.vtt";
      trackElement.kind = "subtitles";

      video.appendChild(trackElement);
      document.getElementById("content").appendChild(video);

      video.addEventListener("loadedmetadata", function run_tests() {
        // Re-que run_tests() at the end of the event loop until the track
        // element has loaded its data.
        if (trackElement.readyState == HTMLTrackElement.LOADING) {
          setTimeout(run_tests, 0);
          return;
        }
        is(trackElement.readyState, HTMLTrackElement.LOADED,
            "Track::ReadyState should be set to LOADED.");
        is(SpecialPowers.unwrap(SpecialPowers.wrap(trackElement.track).textTrackList),
           video.textTracks,
           "TrackElement's Track's TextTrackList should be the Video's TextTrackList.");

        SimpleTest.finish();
      });
    }
  );
</script>
</pre>
</body>
</html>