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
143
144
145
146
147
|
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="help" src="https://drafts.csswg.org/scroll-animations-1/#named-timeline-range">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/web-animations/testcommon.js"></script>
<script src="support/testcommon.js"></script>
<script src="/web-animations/resources/keyframe-utils.js"></script>
<title>Animation range and delay</title>
</head>
<style type="text/css">
@keyframes anim {
cover 0% {
opacity: 0;
margin-left: 0px;
}
cover 100% {
opacity: 1;
margin-right: 0px;
}
}
#scroller {
border: 10px solid lightgray;
overflow-y: scroll;
overflow-x: hidden;
width: 300px;
height: 200px;
timeline-scope: --sibling;
}
#sibling {
margin-top: 800px;
margin-left: 10px;
margin-right: 10px;
width: 100px;
height: 50px;
background-color: blue;
view-timeline: --sibling block;
}
#target {
margin-bottom: 800px;
margin-left: 10px;
margin-right: 10px;
width: 100px;
height: 100px;
z-index: -1;
background-color: green;
animation: anim auto both linear;
/* using document timeline by default */
animation-range-start: contain 0%;
animation-range-end: contain 100%;
view-timeline: --target block;
}
#target.with-view-timeline {
animation-timeline: --target;
}
#target.with-view-timeline.retarget {
animation-timeline: --sibling;
}
</style>
<body>
<div id="scroller">
<div id="sibling"></div>
<div id="target"></div>
</div>
</body>
<script type="text/javascript">
async function runTest() {
promise_test(async t => {
await waitForNextFrame();
const anim = document.getAnimations()[0];
await anim.ready;
await waitForNextFrame();
// Initially using a document timeline, so the keyframes should be
// ignored.
let frames = anim.effect.getKeyframes();
let expected = [
{ offset: { rangeName: 'cover', offset: CSS.percent(0) },
computedOffset: null, easing: "linear", composite: "auto",
marginLeft: "0px", opacity: "0" },
{ offset: { rangeName: 'cover', offset: CSS.percent(100) },
computedOffset: null, easing: "linear", composite: "auto",
marginRight: "0px", opacity: "1" }
];
assert_frame_lists_equal(frames, expected);
// Once a view-timeline is added, the kefyrames must update to reflect
// the new keyframe offsets.
target.classList.add('with-view-timeline');
assert_equals(getComputedStyle(target).animationTimeline, '--target',
'Switch to view timeline');
await waitForNextFrame();
frames = anim.effect.getKeyframes();
expected = [
{ offset: 0, computedOffset: 0, easing: "linear", composite: "replace",
marginRight: "10px" },
{ offset: 1, computedOffset: 1, easing: "linear", composite: "replace",
marginLeft: "10px" },
{ offset: { rangeName: 'cover', offset: CSS.percent(0) },
computedOffset: -1, easing: "linear", composite: "auto",
marginLeft: "0px", opacity: "0" },
{ offset: { rangeName: 'cover', offset: CSS.percent(100) },
computedOffset: 2, easing: "linear", composite: "auto",
marginRight: "0px", opacity: "1" },
];
assert_frame_lists_equal(frames, expected);
target.classList.add('retarget');
assert_equals(getComputedStyle(target).animationTimeline, '--sibling',
'Switch to another view timeline');
await waitForNextFrame();
frames = anim.effect.getKeyframes();
expected = [
{ offset: 0, computedOffset: 0, easing: "linear", composite: "replace",
marginRight: "10px" },
{ offset: 1, computedOffset: 1, easing: "linear", composite: "replace",
marginLeft: "10px" },
{ offset: { rangeName: 'cover', offset: CSS.percent(0) },
computedOffset: -1/3, easing: "linear",
composite: "auto", marginLeft: "0px", opacity: "0" },
{ offset: { rangeName: 'cover', offset: CSS.percent(100) },
computedOffset: 4/3, easing: "linear", composite: "auto",
marginRight: "0px", opacity: "1" },
];
assert_frame_lists_equal(frames, expected);
target.classList.toggle('with-view-timeline');
assert_equals(getComputedStyle(target).animationTimeline, 'auto',
'Switch back to document timeline');
frames = anim.effect.getKeyframes();
expected = [
{ offset: { rangeName: 'cover', offset: CSS.percent(0) },
computedOffset: null, easing: "linear", composite: "auto",
marginLeft: "0px", opacity: "0" },
{ offset: { rangeName: 'cover', offset: CSS.percent(100) },
computedOffset: null, easing: "linear", composite: "auto",
marginRight: "0px", opacity: "1" }
];
assert_frame_lists_equal(frames, expected);
}, 'getKeyframes with timeline-offsets');
}
window.onload = runTest;
</script>
|
