File: web-animations-no-infinite-refresh.html

package info (click to toggle)
thunderbird 1%3A128.14.0esr-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 4,334,824 kB
  • sloc: cpp: 7,391,917; javascript: 5,617,271; ansic: 3,833,216; python: 1,230,742; xml: 619,690; asm: 456,022; java: 179,892; sh: 118,796; makefile: 21,908; perl: 14,825; objc: 12,399; yacc: 4,583; pascal: 2,973; lex: 1,720; ruby: 1,190; exp: 762; sql: 674; awk: 580; php: 436; lisp: 430; sed: 70; csh: 10
file content (31 lines) | stat: -rw-r--r-- 894 bytes parent folder | download | duplicates (17) 
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>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<title>Test that a pending animation doesn't keep vsync running forever</title>
<body>
<script>
function ensureVsyncDisabled() {
  let wu = SpecialPowers.wrap(window).windowUtils;
  return new Promise(resolve => {
    function check() {
      if (wu.refreshDriverHasPendingTick) {
        requestIdleCallback(check, {timeout:300});
      } else {
        resolve();
      }
    }
    check();
  })
}

promise_test(async function() {
  await ensureVsyncDisabled();
  let doc = new DOMParser().parseFromString("<div>", "text/html");
  let anim = doc.querySelector("div").animate(null);
  assert_true(anim.pending, "Animation should be pending");
  anim.timeline = document.timeline;

  await ensureVsyncDisabled();
  assert_true(true, "Vsync should be disabled");
});
</script>