test_cloneElementVisually_no_suspend.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

  <title>Test cloneElementVisually</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script type="application/javascript" src="https://example.com:443/tests/dom/media/test/cloneElementVisually_helpers.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">

</head>

<body>

<div id="content">

  <h1>Original</h1>

  <video id="original"></video>

  <h1>MediaStream</h1>

  <video id="streamTarget"></video>

  <h1>Clone</h1>

</div>

<div id="results">

  <h1>Results</h1>

  <canvas id="left"></canvas>

  <canvas id="right"></canvas>

</div>

<script type="application/javascript">

/* import-globals-from cloneElementVisually_helpers.js */

/**

 * Tests that cloning a video prevents the decoder from being suspended

 * if the original video stops being visible.

*/

add_task(async () => {

  await setup();

  let originalVideo = document.getElementById("original");

  await setVideoSrc(originalVideo, LONG_VIDEO);

  await originalVideo.play();

  // Ensure that hiding and pausing this video will cause us to

  // try suspending it.

  await ensureVideoSuspendable(originalVideo);

  await withNewClone(originalVideo, async clone => {

    SpecialPowers.wrap(originalVideo).cloneElementVisually(clone);

    // Go back to the beginning of the video to give us enough time to

    // fail to suspend the video when it's being cloned before the

    // video ends.

    originalVideo.removeAttribute("loop");

    originalVideo.currentTime = 0;

    await waitForEventOnce(originalVideo, "seeked");

    let suspendTimerFired = false;

    let listener = () => {

      suspendTimerFired = true;

    originalVideo.addEventListener("mozstartvideosuspendtimer", listener);

    // Have to do this to access normally-preffed off binding methods for some

    // reason.

    // See bug 1544257.

    SpecialPowers.wrap(originalVideo).setVisible(false);

    await waitForEventOnce(originalVideo, "ended");

    originalVideo.removeEventListener("mozstartvideosuspendtimer", listener);

    ok(!suspendTimerFired,

       "mozstartvideosuspendtimer should not have fired.");

    // Have to do this to access normally-preffed off binding methods for some

    // reason.

    // See bug 1544257.

    SpecialPowers.wrap(originalVideo).setVisible(true);

});

  await originalVideo.play();

  // With the clone gone, the original video should be able to suspend now.

  await ensureVideoSuspendable(originalVideo);

  await setVideoSrc(originalVideo, TEST_VIDEO_1);

});

</script>

</body>

</html>