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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
<!DOCTYPE html>
<meta charset=utf-8>
<title>Playing an animation</title>
<link rel="help"
href="https://drafts.csswg.org/web-animations/#playing-an-animation-section">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';
test(t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.currentTime = 1 * MS_PER_SEC;
assert_time_equals_literal(animation.currentTime, 1 * MS_PER_SEC);
animation.play();
assert_time_equals_literal(animation.currentTime, 1 * MS_PER_SEC);
}, 'Playing a running animation leaves the current time unchanged');
test(t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.finish();
assert_time_equals_literal(animation.currentTime, 100 * MS_PER_SEC);
animation.play();
assert_time_equals_literal(animation.currentTime, 0);
}, 'Playing a finished animation seeks back to the start');
test(t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.playbackRate = -1;
animation.currentTime = 0;
assert_time_equals_literal(animation.currentTime, 0);
animation.play();
assert_time_equals_literal(animation.currentTime, 100 * MS_PER_SEC);
}, 'Playing a finished and reversed animation seeks to end');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.finish();
// Initiate a pause then abort it
animation.pause();
animation.play();
// Wait to return to running state
await animation.ready;
assert_true(animation.currentTime < 100 * 1000,
'After aborting a pause when finished, the current time should'
+ ' jump back to the start of the animation');
}, 'Playing a pause-pending but previously finished animation seeks back to'
+ ' to the start');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.finish();
await animation.ready;
animation.play();
assert_equals(animation.startTime, null, 'start time is unresolved');
}, 'Playing a finished animation clears the start time');
test(t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.cancel();
const promise = animation.ready;
animation.play();
assert_not_equals(animation.ready, promise);
}, 'The ready promise should be replaced if the animation is not already'
+ ' pending');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
const promise = animation.ready;
const promiseResult = await promise;
assert_equals(promiseResult, animation);
assert_equals(animation.ready, promise);
}, 'A pending ready promise should be resolved and not replaced when the'
+ ' animation enters the running state');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.currentTime = 50 * MS_PER_SEC;
await animation.ready;
animation.pause();
await animation.ready;
const holdTime = animation.currentTime;
animation.play();
await animation.ready;
assert_less_than_equal(
animation.startTime,
animation.timeline.currentTime - holdTime + TIME_PRECISION
);
}, 'Resuming an animation from paused calculates start time from hold time');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
await animation.ready;
// Go to pause-pending state
animation.pause();
assert_true(animation.pending, 'Animation is pending');
const pauseReadyPromise = animation.ready;
// Now play again immediately (abort the pause)
animation.play();
assert_true(animation.pending, 'Animation is still pending');
assert_equals(animation.ready, pauseReadyPromise,
'The pause Promise is re-used when playing while waiting'
+ ' to pause');
// Sanity check: Animation proceeds to running state
await animation.ready;
assert_true(!animation.pending && animation.playState === 'running',
'Animation is running after aborting a pause');
}, 'If a pause operation is interrupted, the ready promise is reused');
promise_test(async t => {
// Seek animation beyond target end
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
animation.currentTime = -100 * MS_PER_SEC;
await animation.ready;
// Set pending playback rate to the opposite direction
animation.updatePlaybackRate(-1);
assert_true(animation.pending);
assert_equals(animation.playbackRate, 1);
// When we play, we should seek to the target end, NOT to zero (which
// is where we would seek to if we used the playbackRate of 1.
animation.play();
assert_time_equals_literal(animation.currentTime, 100 * MS_PER_SEC);
}, 'A pending playback rate is used when determining auto-rewind behavior');
</script>
</body>
|
