dom/media/webvtt/test/mochitest/test_texttrackregion.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4   <title>Test for Bug 917945 - VTTRegion</title>
   5   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   6   <script type="text/javascript" src="manifest.js"></script>
   7   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
   8 </head>
   9 <body>
  10 <video id="v" src="seek.webm" preload="auto">
  11   <track src="region.vtt" kind="subtitles" id="default" default>
  12 </video>
  13 <script type="text/javascript">
  14 /**
  15  * This test is used to ensure that we can parse VTT region attributes correctly
  16  * from vtt file.
  17  */
  18 var trackElement = document.getElementById("default");
  19
  20 async function runTest() {
  21   await waitUntiTrackLoaded();
  22   checkRegionAttributes();
  23   SimpleTest.finish();
  24 }
  25
  26 SimpleTest.waitForExplicitFinish();
  27
  28 runTest();
  29
  30 /**
  31  * The following are test helper functions.
  32  */
  33 async function waitUntiTrackLoaded() {
  34   if (trackElement.readyState != 2) {
  35     info(`wait until the track finishes loading`);
  36     await once(trackElement, "load");
  37   }
  38   is(trackElement.readyState, 2, "Track::ReadyState should be set to LOADED.");
  39 }
  40
  41 function checkRegionAttributes() {
  42   let cues = trackElement.track.cues;
  43   is(cues.length, 1, "Cue list length should be 1.");
  44
  45   let region = cues[0].region;
  46   isnot(region, null, "Region should not be null.");
  47   is(region.width, 62, "Region width should be 50.");
  48   is(region.lines, 5, "Region lines should be 5.");
  49   is(region.regionAnchorX, 4, "Region regionAnchorX should be 4.");
  50   is(region.regionAnchorY, 78, "Region regionAnchorY should be 78.");
  51   is(region.viewportAnchorX, 10, "Region viewportAnchorX should be 10.");
  52   is(region.viewportAnchorY, 90, "Region viewportAnchorY should be 90.");
  53   is(region.scroll, "up", "Region scroll should be 'up'");
  54 }
  55
  56 </script>
  57 </body>
  58 </html>