1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
<!DOCTYPE html>
<title>TextTrack's addCue and removeCue</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(function(t) {
var video = document.createElement("video");
var trackElement = document.createElement("track");
trackElement.onload = t.step_func_done(function() {
var cues = trackElement.track.cues;
// Test cues loaded from the file.
assert_equals(cues.length, 4);
assert_equals(cues.getCueById("1").startTime, 0);
assert_equals(cues[1].startTime, 31);
assert_equals(cues[2].startTime, 61);
assert_equals(cues.getCueById("4").startTime, 121);
assert_equals(cues.getCueById("junk"), null);
// Create a new cue, check values.
var textCue = new VTTCue(33, 3.4, "Sausage?");
assert_equals(textCue.track, null);
assert_equals(textCue.id, "");
assert_equals(textCue.startTime, 33);
assert_equals(textCue.endTime, 3.4);
assert_equals(textCue.pauseOnExit, false);
assert_equals(textCue.vertical, "");
assert_equals(textCue.snapToLines, true);
assert_equals(textCue.line, "auto");
assert_equals(textCue.position, "auto");
assert_equals(textCue.size, 100);
assert_equals(textCue.align, "center");
// Remove the unadded track, make sure it throws correctly.
assert_throws_dom("NotFoundError", function() { trackElement.track.removeCue(textCue); });
// Add the new cue to a track, make sure it is inserted correctly.
trackElement.track.addCue(textCue);
assert_equals(textCue.track, trackElement.track);
assert_equals(cues[1].startTime, 31);
assert_equals(cues[2].startTime, 33);
assert_equals(cues[3].startTime, 61);
// create a new cue and add it to a track created with
// video.addTextTrack, make sure it is inserted correctly.
var newTrack = video.addTextTrack("subtitles", "French subtitles", "fr");
newTrack.mode = "showing";
var newCue = new VTTCue(0, 1, "Test!");
newTrack.addCue(newCue);
assert_equals(newCue, newTrack.cues[0])
assert_equals(newCue.track, newTrack);
assert_equals(newCue.id, "");
assert_equals(newCue.startTime, 0);
assert_equals(newCue.endTime, 1);
assert_equals(newCue.pauseOnExit, false);
assert_equals(newCue.vertical, "");
assert_equals(newCue.snapToLines, true);
assert_equals(newCue.line, "auto");
assert_equals(newCue.position, "auto");
assert_equals(newCue.size, 100);
assert_equals(newCue.align, "center");
trackElement.track.removeCue(textCue);
assert_equals(textCue.track, null);
assert_equals(cues[1].startTime, 31);
assert_equals(cues[2].startTime, 61);
// Remove a cue added from the WebVTT file.
textCue = cues[2];
trackElement.track.removeCue(textCue);
assert_equals(textCue.track, null);
assert_equals(cues[1].startTime, 31);
assert_equals(cues[2].startTime, 121);
// Try to remove the cue again.
assert_throws_dom("NotFoundError", function() { trackElement.track.removeCue(textCue); });
// Add a cue before all the existing cues.
trackElement.track.addCue(new VTTCue(0, 31, "I am first"));
assert_equals(cues[0].startTime, 0);
assert_equals(cues[0].endTime, 31);
assert_equals(cues[1].startTime, 0);
assert_equals(cues[1].endTime, 30.5);
assert_equals(cues[2].startTime, 31);
});
trackElement.src = "resources/settings.vtt";
trackElement.kind = "captions";
trackElement.default = true;
video.appendChild(trackElement);
});
</script>
|
