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  <meta charset="utf-8">
  <title>Tests for TextTrack DOM Events</title>
  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();

var video = document.createElement("video");
video.src = "vp9cake.webm";
video.preload = "auto";
video.controls = true;
var trackElement = document.createElement("track");
trackElement.src = "sequential.vtt";
trackElement.kind = "subtitles";
trackElement.default = true;
document.getElementById("content").appendChild(video);
video.appendChild(trackElement);

var trackElementCueChangeCount = 0;
var trackCueChangeCount = 0;
var cueEnterCount = 0;
var cueExitCount = 0;

video.addEventListener("loadedmetadata", function run_tests() {
  // Re-queue run_tests() at the end of the event loop until the track
  // element has loaded its data.
  if (trackElement.readyState == 1) {
    setTimeout(run_tests, 0);
    return;
  }
  is(trackElement.readyState, 2, "Track::ReadyState should be set to LOADED.");
  ok('oncuechange' in trackElement.track, "Track::OnCueChange should exist.");

  var textTrack = trackElement.track;
  is(textTrack.cues.length, 3, "textTrack.cues.length should 3.");
  textTrack.cues[0].onenter = function() {
    ++cueEnterCount;
  };
  textTrack.cues[0].onexit = function() {
    ++cueExitCount;
  };
  textTrack.cues[1].onenter = function() {
    ++cueEnterCount;
  };
  textTrack.cues[1].onexit = function() {
    ++cueExitCount;
  };
  textTrack.cues[2].onenter = function() {
    ++cueEnterCount;
  };
  textTrack.cues[2].onexit = function() {
    ++cueExitCount;
  };

  trackElement.track.oncuechange = function() {
    ++trackElementCueChangeCount;
  };

  trackElement.addEventListener("cuechange", function() {
    ++trackCueChangeCount;
  });

  video.play();
});

video.addEventListener('ended', function() {
  // Should be fired 1 to 6 times, as there are 3 cues,
  // with a change event for when it is activated/deactivated
  // (6 events at most).
  isnot(trackElementCueChangeCount, 0, "TrackElement should fire cue change at least one time.");
  ok(trackElementCueChangeCount <= 6, 'trackElementCueChangeCount should <= 6');
  isnot(trackCueChangeCount, 0, "TrackElement.track should fire cue change at least one time.");
  ok(trackCueChangeCount <= 6, 'trackCueChangeCount should <= 6');
  is(cueEnterCount, 3, "cueEnterCount should fire three times.");
  is(cueExitCount, 3, "cueExitCount should fire three times.");
  SimpleTest.finish()
});
</script>
</pre>
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