File: composite-change-after-scroll-preserves-stacking-order.html

package info (click to toggle)
thunderbird 1%3A78.14.0-1~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 2,922,628 kB
  • sloc: cpp: 5,990,120; javascript: 4,418,692; ansic: 3,063,889; python: 915,509; asm: 304,197; xml: 206,623; sh: 109,253; java: 108,679; makefile: 22,985; perl: 15,867; yacc: 4,565; objc: 3,026; pascal: 1,787; lex: 1,720; ada: 1,681; cs: 879; exp: 505; awk: 485; sql: 452; php: 436; lisp: 432; ruby: 99; sed: 69; csh: 45
file content (39 lines) | stat: -rw-r--r-- 1,192 bytes parent folder | download | duplicates (26) 
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
 
<!doctype HTML>
<link rel="author" title="Chris Harrelson" href="chrishtr@chromium.org">
<link rel="match" href="composite-change-after-scroll-preserves-stacking-order-ref.html">
<link rel="help" href="https://www.w3.org/TR/CSS2/zindex.html"/>
<script src="/common/reftest-wait.js"></script>
<script src="/web-animations/testcommon.js"></script>
<style>
    #one, #two {
        width: 200px; height: 200px; background: lightblue; position: relative
    }
    #one {
        background: lightblue
    }
    #two {
        background: lightgray;
        margin-top: -200px;
    }
</style>
<html class=reftest-wait>
  <div id=scroller style="overflow: scroll; width: 300px; height: 300px; will-change: transform">
    <div id=one></div>
    <div id=two></div>
    <div id=spacer style="width: 50px; height: 5000px"></div>
  </div>
</html>
<script>
  onload = () => {
    waitForAnimationFrames(2).then(() => {
      scroller.scrollBy(0, 1000);
      waitForAnimationFrames(2).then(() => {
        one.style = 'will-change: transform';
        waitForAnimationFrames(2).then(() => {
          scroller.scrollBy(0, -1000);
          takeScreenshot();
        });
      });
    });
  };
</script>