wpt/css/css-view-transitions/auto-name.html at master · web-platform-tests/wpt · GitHub

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
<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: using auto names</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
<link rel="match" href="auto-name-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
div {
  width: 100px;
  height: 100px;
}

main {
  display: flex;
  flex-direction: column;
}

.item {
  view-transition-name: auto;
  view-transition-class: item;
}

main.switch .item1 {
  order: 2;
}

.item1 {
  background: green;
}

.item2 {
  background: yellow;
  position: relative;
  left: 100px;
}

html::view-transition {
  background: rebeccapurple;
}

:root { view-transition-name: none; }
html::view-transition-group(.item) {
  animation-timing-function: steps(2, start);
  animation-play-state: paused;
}
html::view-transition-old(*),
html::view-transition-new(*)
 { animation-play-state: paused; }
html::view-transition-old(*) { animation: unset; opacity: 0 }
html::view-transition-new(*) { animation: unset; opacity: 1 }

</style>

<main>
  <div class="item item1"></div>
  <div class="item item2"></div>
</main>

<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");

function runTest() {
  document.startViewTransition(() => {
    document.querySelector("main").classList.toggle("switch");
  }).ready.then(takeScreenshot);
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>

</body>