-
Notifications
You must be signed in to change notification settings - Fork 3.3k
/
Copy pathdynamic-stylesheet-animations.html
116 lines (97 loc) · 3.47 KB
/
dynamic-stylesheet-animations.html
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
<!DOCTYPE html>
<html>
<title>View transitions: Dynamic stylesheet sets correct animations</title>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="help" href="https://drafts.csswg.org/css-view-transitions/#setup-transition-pseudo-elements-algorithm">
<style>
:root { view-transition-name: none; }
#target {
view-transition-name: target;
background: red;
width: 100px;
height: 100px;
}
html::view-transition-group(*) {
animation-timing-function: steps(2, start);
animation-play-state: paused;
}
html::view-transition-old(*),
html::view-transition-new(*) {
animation-play-state: paused;
}
</style>
<div id="target"></div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async () => {
let vt = document.startViewTransition(() => {
target.style.backgroundColor = "green";
});
await vt.ready;
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-group(target)").animationName,
"-ua-view-transition-group-anim-target",
"Animation on group when there are 2 snapshots"
);
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-old(target)").animationName,
"-ua-view-transition-fade-out, -ua-mix-blend-mode-plus-lighter",
"Two animations when there are 2 snapshots"
);
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-new(target)").animationName,
"-ua-view-transition-fade-in, -ua-mix-blend-mode-plus-lighter",
"Two animations when there are 2 snapshots"
);
await vt.skipTransition();
}, "Both old and new snapshots");
promise_test(async () => {
let vt = await document.startViewTransition(() => {
target.remove();
});
await vt.ready;
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-group(target)").animationName,
"none",
"No animation on group when one snapshot is missing"
);
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-old(target)").animationName,
"-ua-view-transition-fade-out",
"Only one animation for old snapshot when new snapshot is missing"
);
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-new(target)").animationName,
"none",
"No animation since the snapshot is not generated"
);
await vt.skipTransition();
}, "Only old snapshot");
promise_test(async () => {
let vt = await document.startViewTransition(() => {
const div = document.createElement("div");
div.id = "target";
document.body.append(div);
});
await vt.ready;
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-group(target)").animationName,
"none",
"No animation on group when one snapshot is missing"
);
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-old(target)").animationName,
"none",
"No animation since the snapshot is not generated"
);
assert_equals(
getComputedStyle(document.documentElement, "::view-transition-new(target)").animationName,
"-ua-view-transition-fade-in",
"Only one animation for new snapshot when old snapshot is missing"
);
await vt.skipTransition();
}, "Only new snapshot");
</script>
</body>
</html>