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Issue 2539023002: Media Controls: Use events to update controls for closed captions. (Closed)
Patch Set: review comments Created 4 years ago
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1 <!DOCTYPE html>
2 <title>A single track should not show overflow on caption button-press, instead just toggle.</title>
3 <script src="../../resources/testharness.js"></script>
4 <script src="../../resources/testharnessreport.js"></script>
5 <script src="../media-controls.js"></script>
6 <script src="../media-file.js"></script>
7 <video controls></video>
8 <script>
9 async_test(t => {
10 var captions = ["Caption"];
11 var video = document.querySelector("video");
12
13 video.oncanplaythrough = t.step_func(_ => {
14 var track1 = video.addTextTrack("captions");
15
16 for (var i = 0; i < captions.length; ++i)
17 track1.addCue(new VTTCue(0, 120, captions[i]));
18
19 // The controls are updated asynchronously.
20 assert_false(isClosedCaptionsButtonVisible(video));
21
22 setTimeout(t.step_func_done(_ => {
23 assert_true(isClosedCaptionsButtonVisible(video));
24
25 // The captions track should be listed in textTracks, but not yet loaded.
26 assert_equals(video.textTracks.length, 1);
27 assert_equals(video.textTracks[0].mode, "hidden");
28 checkCaptionsHidden(video);
29
30 // Get the menu that displays the list of text tracks.
31 var captionsList = mediaControlsElement(internals.shadowRoot(video).firstC hild,
32 "-internal-media-controls-text-track-list");
33
34 clickCaptionButton(video);
35 assert_equals(getComputedStyle(captionsList).display, "none");
36
37 // Captions track should become visible after the closed caption button is pressed.
38 checkCaptionsVisible(video, captions);
39
40 // Click the closed captions button again and make sure the menu does not appear.
41 clickCaptionButton(video);
42 assert_equals(getComputedStyle(captionsList).display, "none");
43
44 // Captions track should become invisible after the closed caption button is pressed.
45 checkCaptionsHidden(video);
46 }));
47 });
48
49 video.src = findMediaFile("video", "../content/counting");
50 });
51 </script>
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