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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-animations/event-dispatch.tentative.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset=utf-8>
<title>Tests for CSS animation event dispatch</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/testcommon.js"></script>
<style>
@keyframes anim {
from { margin-left: 0px; }
to { margin-left: 100px; }
}
</style>
<div id="log"></div>
<script>
'use strict';
const setupAnimation = (t, animationStyle) => {
const div = addDiv(t, { style: 'animation: ' + animationStyle });
const animation = div.getAnimations()[0];
const timeoutPromise = armTimeoutWhenReady(animation, fastEventsTimeout);
const watcher = new EventWatcher(t, div, [ 'animationstart',
'animationiteration',
'animationend',
'animationcancel' ],
timeoutPromise);
return { animation, watcher, div };
};
promise_test(async t => {
// Add 1ms delay to ensure that the delay is not included in the elapsedTime.
const { animation, watcher } = setupAnimation(t, 'anim 100s 1ms');
const evt = await watcher.wait_for('animationstart');
assert_equals(evt.elapsedTime, 0.0);
}, 'Idle -> Active');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
// Seek to After phase.
animation.finish();
const events = await watcher.wait_for(['animationstart', 'animationend'], {
record: 'all',
});
assert_equals(events[0].elapsedTime, 0.0);
assert_equals(events[1].elapsedTime, 100);
}, 'Idle -> After');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s paused');
await animation.ready;
// Seek to Active phase.
animation.currentTime = 100 * MS_PER_SEC;
const evt = await watcher.wait_for('animationstart');
assert_equals(evt.elapsedTime, 0.0);
}, 'Before -> Active');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s paused');
const allEvents = watcher.wait_for(['animationstart', 'animationend'], {
record: 'all',
});
await animation.ready;
// Seek to After phase.
animation.finish();
const events = await allEvents;
assert_equals(events[0].elapsedTime, 0.0);
assert_equals(events[1].elapsedTime, 100.0);
}, 'Before -> After');
promise_test(async t => {
const { animation, watcher, div } = setupAnimation(t, 'anim 100s paused');
await watcher.wait_for('animationstart');
// Make idle
div.style.display = 'none';
const evt = await watcher.wait_for('animationcancel');
assert_equals(evt.elapsedTime, 0.0);
}, 'Active -> Idle, display: none');
promise_test(async t => {
const { animation, watcher, div } = setupAnimation(t, 'anim 100s paused');
// Seek to After phase.
animation.finish();
await watcher.wait_for(['animationstart', 'animationend']);
div.style.display = 'none';
// Wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'After -> Idle, display: none');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
animation.currentTime = 100.0;
// Make idle
animation.timeline = null;
const evt = await watcher.wait_for('animationcancel');
assert_time_equals_literal(evt.elapsedTime, 0.1);
}, 'Active -> Idle, setting Animation.timeline = null');
promise_test(async t => {
// We should NOT pause animation since calling cancel synchronously.
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
animation.currentTime = 50.0;
animation.cancel();
const evt = await watcher.wait_for('animationcancel');
assert_time_equals_literal(evt.elapsedTime, 0.05);
}, 'Active -> Idle, calling Animation.cancel()');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s paused');
// Seek to Active phase.
animation.currentTime = 100 * MS_PER_SEC;
await watcher.wait_for('animationstart');
// Seek to Before phase.
animation.currentTime = 0;
const evt = await watcher.wait_for('animationend');
assert_equals(evt.elapsedTime, 0.0);
}, 'Active -> Before');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s paused');
await watcher.wait_for('animationstart');
// Seek to After phase.
animation.finish();
const evt = await watcher.wait_for('animationend');
assert_equals(evt.elapsedTime, 100.0);
}, 'Active -> After');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s paused');
// Seek to After phase.
animation.finish();
await watcher.wait_for([ 'animationstart', 'animationend' ]);
// Seek to Before phase.
animation.currentTime = 0;
const events = await watcher.wait_for(['animationstart', 'animationend'], {
record: 'all',
});
assert_equals(events[0].elapsedTime, 100.0);
assert_equals(events[1].elapsedTime, 0.0);
}, 'After -> Before');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s paused');
// Seek to After phase.
animation.finish();
await watcher.wait_for([ 'animationstart', 'animationend' ]);
// Seek to Active phase.
animation.currentTime = 100 * MS_PER_SEC;
const evt = await watcher.wait_for('animationstart');
assert_equals(evt.elapsedTime, 100.0);
}, 'After -> Active');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s 3 paused');
await animation.ready;
// Seek to iteration 0 (no animationiteration event should be dispatched)
animation.currentTime = 100 * MS_PER_SEC;
await watcher.wait_for('animationstart');
// Seek to iteration 2
animation.currentTime = 300 * MS_PER_SEC;
let evt = await watcher.wait_for('animationiteration');
assert_equals(evt.elapsedTime, 200);
// Seek to After phase (no animationiteration event should be dispatched)
animation.currentTime = 400 * MS_PER_SEC;
evt = await watcher.wait_for('animationend');
assert_equals(evt.elapsedTime, 300);
}, 'Active -> Active (forwards)');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s 3');
// Seek to After phase.
animation.finish();
await watcher.wait_for([ 'animationstart', 'animationend' ]);
// Seek to iteration 2 (no animationiteration event should be dispatched)
animation.pause();
animation.currentTime = 300 * MS_PER_SEC;
await watcher.wait_for('animationstart');
// Seek to mid of iteration 0 phase.
animation.currentTime = 200 * MS_PER_SEC;
const evt = await watcher.wait_for('animationiteration');
assert_equals(evt.elapsedTime, 200.0);
// Seek to before phase (no animationiteration event should be dispatched)
animation.currentTime = 0;
await watcher.wait_for('animationend');
}, 'Active -> Active (backwards)');
promise_test(async t => {
const { animation, watcher, div } = setupAnimation(t, 'anim 100s paused');
await watcher.wait_for('animationstart');
// Seek to Idle phase.
div.style.display = 'none';
flushComputedStyle(div);
await watcher.wait_for('animationcancel');
// Restart this animation.
div.style.display = '';
await watcher.wait_for('animationstart');
}, 'Active -> Idle -> Active: animationstart is fired by restarting animation');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s 2 paused');
// Make After.
animation.finish();
await watcher.wait_for([ 'animationstart', 'animationend' ]);
animation.playbackRate = -1;
let evt = await watcher.wait_for('animationstart');
assert_equals(evt.elapsedTime, 200);
// Seek to 1st iteration
animation.currentTime = 200 * MS_PER_SEC - 1;
evt = await watcher.wait_for('animationiteration');
assert_equals(evt.elapsedTime, 100);
// Seek to before
animation.currentTime = 100 * MS_PER_SEC - 1;
evt = await watcher.wait_for('animationend');
assert_equals(evt.elapsedTime, 0);
assert_equals(animation.playState, 'running'); // delay
}, 'Negative playbackRate sanity test(Before -> Active -> Before)');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s');
animation.currentTime = 150 * MS_PER_SEC;
animation.currentTime = 50 * MS_PER_SEC;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Redundant change, before -> active, then back');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s');
animation.currentTime = 250 * MS_PER_SEC;
animation.currentTime = 50 * MS_PER_SEC;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Redundant change, before -> after, then back');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s');
// Get us into the initial state:
animation.currentTime = 150 * MS_PER_SEC;
await watcher.wait_for('animationstart');
animation.currentTime = 50 * MS_PER_SEC;
animation.currentTime = 150 * MS_PER_SEC;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Redundant change, active -> before, then back');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s');
// Get us into the initial state:
animation.currentTime = 150 * MS_PER_SEC;
await watcher.wait_for('animationstart');
animation.currentTime = 250 * MS_PER_SEC;
animation.currentTime = 150 * MS_PER_SEC;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Redundant change, active -> after, then back');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s');
// Get us into the initial state:
animation.currentTime = 250 * MS_PER_SEC;
await watcher.wait_for(['animationstart', 'animationend']);
animation.currentTime = 50 * MS_PER_SEC;
animation.currentTime = 250 * MS_PER_SEC;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Redundant change, after -> before, then back');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s 100s');
// Get us into the initial state:
animation.currentTime = 250 * MS_PER_SEC;
await watcher.wait_for(['animationstart', 'animationend']);
animation.currentTime = 150 * MS_PER_SEC;
animation.currentTime = 250 * MS_PER_SEC;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Redundant change, after -> active, then back');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
// Make idle
animation.cancel();
await watcher.wait_for('animationcancel');
animation.cancel();
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Call Animation.cancel after canceling animation.');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
// Make idle
animation.cancel();
animation.play();
await watcher.wait_for([ 'animationcancel', 'animationstart' ]);
}, 'Restart animation after canceling animation immediately.');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
// Make idle
animation.cancel();
animation.play();
animation.cancel();
await watcher.wait_for('animationcancel');
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Call Animation.cancel after restarting animation immediately.');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
// Make idle
animation.timeline = null;
await watcher.wait_for('animationcancel');
animation.timeline = document.timeline;
animation.play();
await watcher.wait_for('animationstart');
}, 'Set timeline and play transition after clearing the timeline.');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
// Make idle
animation.cancel();
await watcher.wait_for('animationcancel');
animation.effect = null;
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Set null target effect after canceling the animation.');
promise_test(async t => {
const { animation, watcher } = setupAnimation(t, 'anim 100s');
await watcher.wait_for('animationstart');
animation.effect = null;
await watcher.wait_for('animationend');
animation.cancel();
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'Cancel the animation after clearing the target effect.');
</script>