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106 lines
3.6 KiB
HTML
106 lines
3.6 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>ScrollTimeline invalidation</title>
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<link rel="help" href="https://wicg.github.io/scroll-animations/#current-time-algorithm">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/web-animations/testcommon.js"></script>
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<script src="testcommon.js"></script>
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<style>
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.scroller {
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overflow: auto;
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height: 100px;
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width: 100px;
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will-change: transform;
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}
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.contents {
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height: 1000px;
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width: 100%;
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}
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</style>
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<div id="log"></div>
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<script>
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'use strict';
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promise_test(async t => {
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const animation = createScrollLinkedAnimation(t);
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animation.effect.updateTiming({ duration: 350 });
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const scroller = animation.timeline.scrollSource;
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const maxScroll = scroller.scrollHeight - scroller.clientHeight;
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scroller.scrollTop = 0.2 * maxScroll;
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// Wait for new animation frame which allows the timeline to compute new
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// current time.
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await waitForNextFrame();
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animation.play();
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await animation.ready;
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// Change scroller content size.
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scroller.firstChild.style.height = "500px";
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await animation.finished;
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const newTime = animation.effect.getTiming().duration;
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assert_times_equal(animation.currentTime, newTime,
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'Animation current time is updated after scroller invalidation.');
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assert_times_equal(
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animation.effect.getComputedTiming().localTime, newTime,
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'Effect local time is updated after scroller invalidation.');
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}, 'Animation current time and effect local time are updated after scroller ' +
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'content size changes.');
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promise_test(async t => {
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const animation = createScrollLinkedAnimation(t);
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animation.effect.updateTiming({ duration: 350 });
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const scroller = animation.timeline.scrollSource;
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const maxScroll = scroller.scrollHeight - scroller.clientHeight;
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scroller.scrollTop = 0.2 * maxScroll;
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// Wait for new animation frame which allows the timeline to compute new
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// current time.
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await waitForNextFrame();
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animation.play();
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await animation.ready;
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// Change scroller size.
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scroller.style.height = "500px";
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await animation.finished;
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const newTime = animation.effect.getTiming().duration;
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assert_times_equal(animation.currentTime, newTime,
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'Animation current time is updated after scroller invalidation.');
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assert_times_equal(
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animation.effect.getComputedTiming().localTime, newTime,
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'Effect local time is updated after scroller invalidation.');
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}, 'Animation current time and effect local time are updated after scroller ' +
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'size changes.');
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promise_test(async t => {
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const timeline = createScrollTimeline(t);
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const scroller = timeline.scrollSource;
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const maxScroll = scroller.scrollHeight - scroller.clientHeight;
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// Instantiate scroll animation that resizes its scroll timeline scroller.
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const animation = new Animation(
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new KeyframeEffect(
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timeline.scrollSource.firstChild,
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[{ height: '1000px' }, { height: '2000px' }],
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{ duration: 1000, }
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), timeline);
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animation.play();
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await animation.ready;
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await waitForNextFrame();
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scroller.scrollTop = 0.2 * maxScroll;
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// Wait for new animation frame which allows the timeline to compute new
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// current time.
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await waitForNextFrame();
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assert_times_equal(timeline.currentTime, 200,
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'Timeline current time is updated after animation frame.');
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await waitForNextFrame();
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assert_times_equal(timeline.currentTime, 163.636,
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'Timeline current time is updated after two animation frames and ' +
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'reflects single layout run.');
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}, 'If scroll animation resizes its scroll timeline scroller, ' +
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'layout runs only once to reflect the initial update.');
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</script>
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