26 lines
845 B
HTML
26 lines
845 B
HTML
<!doctype html>
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<title>cancelAnimationFrame cancels a pending animation frame callback</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel="help" href="https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#run-the-animation-frame-callbacks">
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<div id="log"></div>
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<script>
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async_test(t => {
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let didCall = false;
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function callbackOne() {
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cancelAnimationFrame(twoHandle);
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requestAnimationFrame(t.step_func(() => {
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assert_false(didCall, 'Should NOT have called the second callback');
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t.done();
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}));
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}
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function callbackTwo() {
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didCall = true;
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}
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requestAnimationFrame(callbackOne);
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const twoHandle = requestAnimationFrame(callbackTwo);
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}, 'cancelAnimationFrame cancels a pending animation frame callback');
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</script>
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