144 lines
4.9 KiB
HTML
144 lines
4.9 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Timelines</title>
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<link rel="help" href="https://drafts.csswg.org/web-animations/#timelines">
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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="../../testcommon.js"></script>
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<style>
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@keyframes opacity-animation {
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from { opacity: 1; }
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to { opacity: 0; }
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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(t => {
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const valueAtStart = document.timeline.currentTime;
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const timeAtStart = window.performance.now();
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while (window.performance.now() - timeAtStart < 50) {
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// Wait 50ms
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}
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assert_equals(document.timeline.currentTime, valueAtStart,
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'Timeline time does not change within an animation frame');
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return waitForAnimationFrames(1).then(() => {
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assert_greater_than(document.timeline.currentTime, valueAtStart,
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'Timeline time increases between animation frames');
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});
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}, 'Timeline time increases once per animation frame');
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async_test(t => {
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const iframe = document.createElement('iframe');
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iframe.width = 10;
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iframe.height = 10;
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iframe.addEventListener('load', t.step_func(() => {
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const iframeTimeline = iframe.contentDocument.timeline;
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const valueAtStart = iframeTimeline.currentTime;
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const timeAtStart = window.performance.now();
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while (iframe.contentWindow.performance.now() - timeAtStart < 50) {
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// Wait 50ms
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}
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assert_equals(iframeTimeline.currentTime, valueAtStart,
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'Timeline time within an iframe does not change within an '
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+ ' animation frame');
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iframe.contentWindow.requestAnimationFrame(t.step_func_done(() => {
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assert_greater_than(iframeTimeline.currentTime, valueAtStart,
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'Timeline time within an iframe increases between animation frames');
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iframe.remove();
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}));
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}));
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document.body.appendChild(iframe);
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}, 'Timeline time increases once per animation frame in an iframe');
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async_test(t => {
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const startTime = document.timeline.currentTime;
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let firstRafTime;
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requestAnimationFrame(() => {
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t.step(() => {
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assert_greater_than_equal(document.timeline.currentTime, startTime,
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'Timeline time should have progressed');
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firstRafTime = document.timeline.currentTime;
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});
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});
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requestAnimationFrame(() => {
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t.step(() => {
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assert_equals(document.timeline.currentTime, firstRafTime,
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'Timeline time should be the same');
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});
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t.done();
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});
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}, 'Timeline time should be the same for all RAF callbacks in an animation'
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+ ' frame');
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promise_test(async t => {
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// A microtask checkpoint is run as part of the process of updating
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// timelines to ensure that any microtasks queued during promise
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// resolution are handled before dispatching animation events.
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const div = createDiv(t);
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const events = [];
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let microtaskFrameTime = undefined;
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let finishFrameTime = undefined;
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const waitForMicrotask = (animation) => {
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return new Promise(resolve => {
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queueMicrotask(() => {
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events.push('microtask');
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microtaskFrameTime = document.timeline.currentTime;
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resolve();
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});
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});
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}
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const waitForFinishEvent = (animation) => {
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return new Promise(resolve => {
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animation.onfinish = (event) => {
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events.push('finish');
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finishFrameTime = event.timelineTime;
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resolve();
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};
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});
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}
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await waitForNextFrame();
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const animation = div.animate({ opacity: [0, 1] }, 1000 * MS_PER_SEC);
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const finishPromise = waitForFinishEvent(animation);
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await animation.ready;
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// Advance the timing to effect end, to asynchronously queue up a finish task.
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// Queue up microtask, which must be processed ahead of the finish event.
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// See "Perform a microtask checkpoint" step in
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// https://www.w3.org/TR/web-animations-1/#timelines.
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animation.currentTime = animation.effect.getComputedTiming().duration;
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const microtaskPromise = waitForMicrotask(animation);
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await Promise.all([finishPromise, microtaskPromise]);
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assert_array_equals(events, ['microtask', 'finish']);
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assert_times_equal(microtaskFrameTime, finishFrameTime);
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}, 'Performs a microtask checkpoint after updating timelines');
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async_test(t => {
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const div = createDiv(t);
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let readyPromiseRan = false;
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let finishedPromiseRan = false;
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div.style.animation = 'opacity-animation 1ms';
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let anim = div.getAnimations()[0];
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anim.ready.then(t.step_func(() => {
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readyPromiseRan = true;
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}));
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div.addEventListener('animationstart', t.step_func(() => {
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assert_true(readyPromiseRan, 'It should run ready promise before animationstart event');
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}));
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anim.finished.then(t.step_func(() => {
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finishedPromiseRan = true;
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}));
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div.addEventListener('animationend', t.step_func_done(() => {
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assert_true(finishedPromiseRan, 'It should run finished promise before animationend event');
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}));
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}, 'Runs finished promise before animation events');
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</script>
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