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Fix requestAnimationFrame timestamps in queue

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This resolves #7044 which involved callbacks
in a queue not receiving the same timestamp despite
the specification saying they should. An extra test
was added to verify the correct behavior.
This commit is contained in:
Harrison G 2015-08-07 09:03:51 -04:00
parent 0a0fd30eb3
commit e40b141409
4 changed files with 40 additions and 2 deletions
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31
tests/wpt/web-platform-tests/animation-timing/same-dispatch-time.html Normal file
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<!doctype html>
<html>
<head>
<title>requestAnimationFrame in queue get the same timestamp</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="http://w3c.github.io/animation-timing/#dfn-invoke-callbacks-algorithm"/>
</head>
<body>
<div id="log"></div>
<script>
test(function (t) {
var a = 0, b = 0;
/* REASONING:
* These two methods that will be called with a timestamp. Because
* they execute right after eachother, they're added to the same
* queue and SHOULD be timestamped with the same value.
*/
window.requestAnimationFrame(function() { a = arguments[0]; });
window.requestAnimationFrame(function() { b = arguments[0]; });
setTimeout(function() {
assert_true(a != 0);
assert_true(b != 0);
assert_true(a == b);
}, 100);
}, "requestAnimationFrame will timestamp events in the same queue with the same time");
</script>
</body>
</html>