File: opacity-zero.html

package info (click to toggle)
firefox 145.0-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 4,653,344 kB
  • sloc: cpp: 7,594,932; javascript: 6,459,612; ansic: 3,752,905; python: 1,403,433; xml: 629,811; asm: 438,677; java: 186,421; sh: 67,287; makefile: 19,169; objc: 13,086; perl: 12,982; yacc: 4,583; cs: 3,846; pascal: 3,448; lex: 1,720; ruby: 1,003; exp: 762; php: 436; lisp: 258; awk: 247; sql: 66; sed: 54; csh: 10
file content (31 lines) | stat: -rw-r--r-- 1,055 bytes parent folder | download | duplicates (21) 
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
 
<!DOCTYPE html>
<title>Layout Instability: opacity:0</title>
<link rel="help" href="https://wicg.github.io/layout-instability/" />
<div id="target" style="position: absolute; top: 0; width: 400px; height: 400px; opacity: 0; background: blue">
  <div id="child" style="position: relative; top: 0; width: 200px; height: 200px; opacity: 0.5; background: yellow"></div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/util.js"></script>
<script>

promise_test(async () => {
  const watcher = new ScoreWatcher;

  // Wait for the initial render to complete.
  await waitForAnimationFrames(2);

  // Shift target, for which no shift should be reported because it's not visible.
  target.style.top = '200px';

  await waitForAnimationFrames(2);
  assert_equals(watcher.score, 0);

  // Shift child, for which no shift should be reported, either.
  child.style.top = '100px';

  await waitForAnimationFrames(2);
  assert_equals(watcher.score, 0);
}, 'opacity:0');

</script>