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
|
<!DOCTYPE html>
<meta charset=utf-8>
<title>Scroll timeline with paused animations</title>
<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-notation">
<link rel="help" href="https://drafts.csswg.org/css-animations/#animation-play-state">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/scroll-animations/scroll-timelines/testcommon.js"></script>
<script src="/css/css-animations/support/testcommon.js"></script>
<script src="support/testcommon.js"></script>
<style>
@keyframes anim {
from { width: 100px; }
to { width: 200px; }
}
.fill-vh {
width: 100px;
height: 100vh;
}
</style>
<body>
<div id="log"></div>
<script>
'use strict';
setup(assert_implements_animation_timeline);
async function resetScrollPosition() {
// Reset to 0 so we don't affect following tests.
document.scrollingElement.scrollTop = 0;
return waitForNextFrame();
}
promise_test(async t => {
const div = addDiv(t, { style: 'width: 50px; height: 100px;' });
const filling = addDiv(t, { class: 'fill-vh' });
const scroller = document.scrollingElement;
t.add_cleanup(resetScrollPosition);
div.style.animation = 'anim 100s linear paused';
div.style.animationTimeline = 'scroll(root)';
await waitForCSSScrollTimelineStyle();
const anim = div.getAnimations()[0];
await anim.ready;
assert_percents_equal(anim.currentTime, 0, 'timeline time reset');
assert_equals(getComputedStyle(div).width, '100px');
const maxScroll = scroller.scrollHeight - scroller.clientHeight;
scroller.scrollTop = maxScroll;
await waitForNextFrame();
assert_equals(getComputedStyle(div).width, '100px');
}, 'Test that the scroll animation is paused');
promise_test(async t => {
const div = addDiv(t, { style: 'width: 50px; height: 100px;' });
const filling = addDiv(t, { class: 'fill-vh' });
const scroller = document.scrollingElement;
await waitForNextFrame();
div.style.animation = 'anim 100s linear forwards';
div.style.animationTimeline = 'scroll(root)';
await waitForCSSScrollTimelineStyle();
const anim = div.getAnimations()[0];
await anim.ready;
assert_percents_equal(anim.currentTime, 0, 'timeline time reset');
assert_equals(getComputedStyle(div).width, '100px');
await waitForNextFrame();
const maxScroll = scroller.scrollHeight - scroller.clientHeight;
scroller.scrollTop = maxScroll;
await waitForNextFrame();
assert_equals(getComputedStyle(div).width, '200px');
div.style.animationPlayState = 'paused';
assert_equals(anim.playState, 'paused');
assert_equals(getComputedStyle(div).width, '200px',
'Current time preserved when pause-pending.');
assert_true(anim.pending,
'Pending state after changing animationPlayState');
await anim.ready;
assert_equals(getComputedStyle(div).width, '200px',
'Current time preserved when paused.');
assert_percents_equal(anim.timeline.currentTime, 100);
document.scrollingElement.scrollTop = 0;
await waitForNextFrame();
assert_percents_equal(anim.timeline.currentTime, 0);
assert_equals(getComputedStyle(div).width, '200px');
}, 'Test that the scroll animation is paused by updating animation-play-state');
</script>
</body>
|
