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Automatic update from web-platform-tests Handle inactive timelines for main-thread worklet animations. Whenever start or current time is queried or calculated, check if the timeline becomes newly active or inactive and cache the last calculated current time. - When the timeline becomes newly inactive, make the start time unresolved and apply previous current time to the hold time. - When the timeline becomes newly active, calculate start time from the hold time if resolved and make the hold time unresolved. Bug: 906050 Change-Id: I3cf8e45b9ab0edd13f3108d1a375e95409a0c1e7 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1512789 Commit-Queue: Olga Gerchikov <gerchiko@microsoft.com> Reviewed-by: Majid Valipour <majidvp@chromium.org> Reviewed-by: Stephen McGruer <smcgruer@chromium.org> Cr-Commit-Position: refs/heads/master@{#643534} -- wpt-commits: 18f4c6b79d3930c08cb38e427fd430b82bc25e9b wpt-pr: 15767
98 lines
No EOL
3.1 KiB
HTML
98 lines
No EOL
3.1 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Correctness of worklet animation state when timeline becomes newly
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active or inactive.</title>
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<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
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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="common.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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}
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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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<body>
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<div id="log"></div>
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<script>
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'use strict';
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function createScroller(test) {
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var scroller = createDiv(test);
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scroller.innerHTML = "<div class='contents'></div>";
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scroller.classList.add('scroller');
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return scroller;
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}
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function createScrollLinkedWorkletAnimation(test) {
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const timeline = new ScrollTimeline({
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scrollSource: createScroller(test),
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timeRange: 1000
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});
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const DURATION = 10000; // ms
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const KEYFRAMES = { transform: ['translateY(100px)', 'translateY(200px)'] };
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return new WorkletAnimation('passthrough', new KeyframeEffect(createDiv(test),
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KEYFRAMES, DURATION), timeline);
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}
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setup(setupAndRegisterTests, {explicit_done: true});
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function setupAndRegisterTests() {
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registerPassthroughAnimator().then(() => {
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promise_test(async t => {
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const animation = createScrollLinkedWorkletAnimation(t);
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const scroller = animation.timeline.scrollSource;
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const maxScroll = scroller.scrollHeight - scroller.clientHeight;
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const timeRange = animation.timeline.timeRange;
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scroller.scrollTop = 0.2 * maxScroll;
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// Make the timeline inactive.
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scroller.style.display = "none"
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// Force relayout.
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scroller.scrollTop;
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animation.play();
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assert_equals(animation.currentTime, null,
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'Initial current time must be unresolved in idle state.');
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assert_equals(animation.startTime, null,
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'Initial start time must be unresolved in idle state.');
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waitForAnimationFrameWithCondition(_=> {
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return animation.playState == "running"
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});
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assert_equals(animation.currentTime, null,
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'Initial current time must be unresolved in playing state.');
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assert_equals(animation.startTime, null,
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'Initial start time must be unresolved in playing state.');
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// Make the timeline active.
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scroller.style.display = ""
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scroller.scrollTop;
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assert_times_equal(animation.currentTime, 200,
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'Current time must be initialized.');
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assert_times_equal(animation.startTime, 0,
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'Start time must be initialized.');
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// Make the timeline inactive again.
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scroller.style.display = "none"
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scroller.scrollTop;
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assert_times_equal(animation.currentTime, 200,
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'Current time must be the previous current time.');
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assert_equals(animation.startTime, null,
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'Initial start time must be unresolved.');
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}, 'When timeline time becomes inactive previous current time must be ' +
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'the current time and start time unresolved');
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done();
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});
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}
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</script>
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</body> |