File: transform-animation.html

package info (click to toggle)
firefox 147.0.2-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 4,683,484 kB
  • sloc: cpp: 7,607,246; javascript: 6,533,185; ansic: 3,775,227; python: 1,415,393; xml: 634,561; asm: 438,951; java: 186,241; sh: 62,752; makefile: 18,079; objc: 13,092; perl: 12,808; yacc: 4,583; cs: 3,846; pascal: 3,448; lex: 1,720; ruby: 1,003; php: 436; lisp: 258; awk: 247; sql: 66; sed: 54; csh: 10; exp: 6
file content (38 lines) | stat: -rw-r--r-- 922 bytes parent folder | download | duplicates (14) 
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
 
<!DOCTYPE html>
<meta name="viewport" content="width=device-width,initial-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<style>

#container {
  width: 200px;
  height: 200px;
  background-color: black;
}

#target {
  position: relative;
  top: 100px;
  width: 100%;
  height: 1px;
  background-color: gray;
}

</style>

<div id="container"><div id="target"></div></div>

<script>

promise_test(async function(t) {
  let intersections = 0;

  const observer = new IntersectionObserver(entries => ++intersections);
  observer.observe(document.getElementById("target"));

  await document.getElementById("container").animate({ transform: 'translate(0, 100px)' }, 1000).finished;
  assert_equals(intersections, 1);
}, "An element that already intersects with the viewport does not trigger the observer callback when animating its transform.");

</script>