<!DOCTYPE html>
<meta charset=utf-8>
<title>Finishing an animation</title>
<link rel="help"
href="https://drafts.csswg.org/web-animations/#finishing-an-animation-section">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<script src="../../resources/timing-override.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';
test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.playbackRate = 0;
assert_throws_dom('InvalidStateError', () => {
animation.finish();
});
}, 'Finishing an animation with a zero playback rate throws');
test(t => {
const div = createDiv(t);
const animation = div.animate(null,
{ duration : 100 * MS_PER_SEC,
iterations : Infinity });
assert_throws_dom('InvalidStateError', () => {
animation.finish();
});
}, 'Finishing an infinite animation throws');
test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.finish();
assert_time_equals_literal(animation.currentTime, 100 * MS_PER_SEC,
'After finishing, the currentTime should be set to the end of the'
+ ' active duration');
}, 'Finishing an animation seeks to the end time');
test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
// 1s past effect end
animation.currentTime =
animation.effect.getComputedTiming().endTime + 1 * MS_PER_SEC;
animation.finish();
assert_time_equals_literal(animation.currentTime, 100 * MS_PER_SEC,
'After finishing, the currentTime should be set back to the end of the'
+ ' active duration');
}, 'Finishing an animation with a current time past the effect end jumps'
+ ' back to the end');
promise_test(async t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.currentTime = 100 * MS_PER_SEC;
await animation.finished;
animation.playbackRate = -1;
animation.finish();
assert_equals(animation.currentTime, 0,
'After finishing a reversed animation the currentTime ' +
'should be set to zero');
}, 'Finishing a reversed animation jumps to zero time');
promise_test(async t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.currentTime = 100 * MS_PER_SEC;
await animation.finished;
animation.playbackRate = -1;
animation.currentTime = -1000;
animation.finish();
assert_equals(animation.currentTime, 0,
'After finishing a reversed animation the currentTime ' +
'should be set back to zero');
}, 'Finishing a reversed animation with a current time less than zero'
+ ' makes it jump back to zero');
promise_test(async t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.pause();
await animation.ready;
animation.finish();
assert_equals(animation.playState, 'finished',
'The play state of a paused animation should become ' +
'"finished"');
assert_times_equal(animation.startTime,
animation.timeline.currentTime - 100 * MS_PER_SEC,
'The start time of a paused animation should be set');
}, 'Finishing a paused animation resolves the start time');
test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
// Update playbackRate so we can test that the calculated startTime
// respects it
animation.playbackRate = 2;
animation.pause();
// While animation is still pause-pending call finish()
animation.finish();
assert_false(animation.pending);
assert_equals(animation.playState, 'finished',
'The play state of a pause-pending animation should become ' +
'"finished"');
assert_times_equal(animation.startTime,
animation.timeline.currentTime - 100 * MS_PER_SEC / 2,
'The start time of a pause-pending animation should ' +
'be set');
}, 'Finishing a pause-pending animation resolves the pending task'
+ ' immediately and update the start time');
test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.playbackRate = -2;
animation.pause();
animation.finish();
assert_false(animation.pending);
assert_equals(animation.playState, 'finished',
'The play state of a pause-pending animation should become ' +
'"finished"');
assert_times_equal(animation.startTime, animation.timeline.currentTime,
'The start time of a pause-pending animation should be ' +
'set');
}, 'Finishing a pause-pending animation with negative playback rate'
+ ' resolves the pending task immediately');
test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
animation.playbackRate = 0.5;
animation.finish();
assert_false(animation.pending);
assert_equals(animation.playState, 'finished',
'The play state of a play-pending animation should become ' +
'"finished"');
assert_times_equal(animation.startTime,
animation.timeline.currentTime - 100 * MS_PER_SEC / 0.5,
'The start time of a play-pending animation should ' +
'be set');
}, 'Finishing an animation while play-pending resolves the pending'
+ ' task immediately');
// FIXME: Add a test for when we are play-pending without an active timeline.
// - In that case even after calling finish() we should still be pending but
// the current time should be updated
promise_test(async t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
await animation.ready;
animation.pause();
animation.play();
// We are now in the unusual situation of being play-pending whilst having
// a resolved start time. Check that finish() still triggers a transition
// to the finished state immediately.
animation.finish();
assert_equals(animation.playState, 'finished',
'After aborting a pause then finishing an animation its play ' +
'state should become "finished" immediately');
}, 'Finishing an animation during an aborted pause makes it finished'
+ ' immediately');
promise_test(async t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
let resolvedFinished = false;
animation.finished.then(() => {
resolvedFinished = true;
});
await animation.ready;
animation.finish();
await Promise.resolve();
assert_true(resolvedFinished, 'finished promise should be resolved');
}, 'Finishing an animation resolves the finished promise synchronously');
promise_test(async t => {
const effect = new KeyframeEffect(null, null, 100 * MS_PER_SEC);
const animation = new Animation(effect, document.timeline);
let resolvedFinished = false;
animation.finished.then(() => {
resolvedFinished = true;
});
await animation.ready;
animation.finish();
await Promise.resolve();
assert_true(resolvedFinished, 'finished promise should be resolved');
}, 'Finishing an animation without a target resolves the finished promise'
+ ' synchronously');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
const promise = animation.ready;
let readyResolved = false;
animation.finish();
animation.ready.then(() => { readyResolved = true; });
const promiseResult = await animation.finished;
assert_equals(promiseResult, animation);
assert_equals(animation.ready, promise);
assert_true(readyResolved);
}, 'A pending ready promise is resolved and not replaced when the animation'
+ ' is finished');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
await animation.ready;
animation.updatePlaybackRate(2);
assert_true(animation.pending);
animation.finish();
assert_false(animation.pending);
assert_equals(animation.playbackRate, 2);
assert_time_equals_literal(animation.currentTime, 100 * MS_PER_SEC);
}, 'A pending playback rate should be applied immediately when an animation'
+ ' is finished');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
await animation.ready;
animation.updatePlaybackRate(0);
assert_throws_dom('InvalidStateError', () => {
animation.finish();
});
}, 'An exception should be thrown if the effective playback rate is zero');
promise_test(async t => {
const animation = createDiv(t).animate(null, {
duration: 100 * MS_PER_SEC,
iterations: Infinity
});
animation.currentTime = 50 * MS_PER_SEC;
animation.playbackRate = -1;
await animation.ready;
animation.updatePlaybackRate(1);
assert_throws_dom('InvalidStateError', () => {
animation.finish();
});
}, 'An exception should be thrown when finishing if the effective playback rate'
+ ' is positive and the target effect end is infinity');
promise_test(async t => {
const animation = createDiv(t).animate(null, {
duration: 100 * MS_PER_SEC,
iterations: Infinity
});
await animation.ready;
animation.updatePlaybackRate(-1);
animation.finish();
// Should not have thrown
}, 'An exception is NOT thrown when finishing if the effective playback rate'
+ ' is negative and the target effect end is infinity');
promise_test(async t => {
const div = createDiv(t);
const animation = div.animate({}, 100 * MS_PER_SEC);
div.remove();
const eventWatcher = new EventWatcher(t, animation, 'finish');
await animation.ready;
animation.finish();
await eventWatcher.wait_for('finish');
assert_equals(animation.effect.target.parentNode, null,
'finish event should be fired for the animation on an orphaned element');
}, 'Finishing an animation fires finish event on orphaned element');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
await animation.ready;
const originalFinishPromise = animation.finished;
animation.cancel();
assert_equals(animation.startTime, null);
assert_equals(animation.currentTime, null);
const resolvedFinishPromise = animation.finished;
assert_not_equals(originalFinishPromise, resolvedFinishPromise,
'Canceling an animation should create a new finished promise');
animation.finish();
assert_equals(animation.playState, 'finished',
'The play state of a canceled animation should become ' +
'"finished"');
assert_times_equal(animation.startTime,
animation.timeline.currentTime - 100 * MS_PER_SEC,
'The start time of a finished animation should be set');
assert_times_equal(animation.currentTime, 100000,
'Hold time should be set to end boundary of the animation');
}, 'Finishing a canceled animation sets the current and start times');
</script>
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