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51 lines
1.6 KiB
HTML
51 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1018933
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-->
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<head>
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<meta charset='utf-8'>
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<title>Regression test for bug 1018933 - HTMLTrackElement should create only one TextTrack</title>
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<script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<p id="display"></p>
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<div id="content">
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</div>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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SimpleTest.waitForExplicitFinish();
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SpecialPowers.pushPrefEnv({"set": [["media.webvtt.enabled", true]]},
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function() {
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var video = document.createElement("video");
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video.src = "seek.webm";
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video.preload = "auto";
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var trackElement = document.createElement("track");
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trackElement.src = "basic.vtt";
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trackElement.kind = "subtitles";
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document.getElementById("content").appendChild(video);
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video.appendChild(trackElement);
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// Accessing the track now would have caused the bug as the track element
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// shouldn't have had time to bind to the tree yet.
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trackElement.track.mode = 'showing';
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video.addEventListener("loadedmetadata", function run_tests() {
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// Re-que run_tests() at the end of the event loop until the track
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// element has loaded its data.
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if (trackElement.readyState == 1) {
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setTimeout(run_tests, 0);
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return;
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}
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is(video.textTracks.length, 1, "Video should have one TextTrack.");
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SimpleTest.finish();
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});
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}
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);
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</script>
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</pre>
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</body>
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</html>
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