testing/web-platform/tests/css/css-view-transitions/capture-with-offscreen-child.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

<!doctype html>
<html class=reftest-wait>
<title>View transitions: offscreen child</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:vmpstr@chromium.org">
<link rel="match" href="capture-with-offscreen-child-ref.html">
<meta name="fuzzy" content="capture-with-offscreen-child-ref.html:0-5;0-200">
<script src="/common/reftest-wait.js"></script>

<style>
.target {
  width: 100px;
  height: 100px;
  view-transition-name: target;
  background: blue;
}
.invisible {
  position: absolute;
  top: -100px;
  width: 50px;
  height: 50px;
  background: green;
}

::view-transition-group(root) {
  visibility: hidden;
  animation-duration: 500s;
}
::view-transition {
  background: pink;
}
</style>

<div class=target>
  <div class=invisible></div>
</div>

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

function runTest() {
  const transition = document.startViewTransition();
  transition.ready.then(takeScreenshot);
}

onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>