54 lines
1.3 KiB
HTML
54 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>ViewTimeline with missing subject</title>
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<link rel="help" href="https://www.w3.org/TR/scroll-animations-1/#viewtimeline-interface">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<style type="text/css">
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#target {
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background: blue;
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height: 100px;
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width: 100px;
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}
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#scroller {
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overflow: scroll;
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}
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#filler {
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height: 300vh;
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}
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</style>
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<body onload="runTests()">
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<div id="scroller">
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<div id="target"></div>
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<div id="filler"></div>
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</div>
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</body>
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<script type="text/javascript">
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function raf() {
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return new Promise(resolve => {
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requestAnimationFrame(() => {
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requestAnimationFrame(resolve);
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})
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});
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}
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function runTests() {
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promise_test(async t => {
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const timeline = new ViewTimeline();
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const anim =
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target.animate(
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{ backgroundColor: ['green', 'red' ] },
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{ duration: 100,
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timeline: timeline });
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await raf();
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scroller.scrollTop = 50;
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await raf();
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assert_equals(timeline.currentTime, null,
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'ViewTimeline with missing subject is inactive');
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});
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}
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</script>
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</html>
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