<!doctype html>
<meta charset=utf-8>
<title>CSSAnimation.effect</title>
<meta name="timeout" content="long">
<!-- TODO: Add a more specific link for this once it is specified. -->
<link rel="help" href="https://drafts.csswg.org/css-animations-2/#cssanimation">
<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';
promise_test(async t => {
const div = addDiv(t);
div.style.animation = 'anim 100s';
const watcher = new EventWatcher(t, div, [ 'animationend',
'animationcancel' ],
fastEventsTimeout);
const animation = div.getAnimations()[0];
await animation.ready;
animation.currentTime = 50 * MS_PER_SEC;
animation.effect = null;
assert_equals(animation.playState, 'finished');
assert_equals(getComputedStyle(div).marginLeft, '0px');
await watcher.wait_for('animationend');
}, 'Setting a null effect on a running animation fires an animationend event');
promise_test(async t => {
const div = addDiv(t);
div.style.animation = 'anim 100s';
const animation = div.getAnimations()[0];
await animation.ready;
animation.currentTime = 50 * MS_PER_SEC;
animation.effect = new KeyframeEffect(div,
{ left: [ '0px' , '100px'] },
100 * MS_PER_SEC);
assert_equals(getComputedStyle(div).marginLeft, '0px');
assert_equals(getComputedStyle(div).left, '50px');
}, 'Replacing an animation\'s effect with an effect that targets a different ' +
'property should update both properties');
promise_test(async t => {
const div = addDiv(t);
div.style.animation = 'anim 100s';
const animation = div.getAnimations()[0];
await animation.ready;
animation.currentTime = 50 * MS_PER_SEC;
animation.effect = new KeyframeEffect(div,
{ left: [ '0px' , '100px'] },
20 * MS_PER_SEC);
assert_equals(animation.playState, 'finished');
}, 'Replacing an animation\'s effect with a shorter one that should have ' +
'already finished, the animation finishes immediately');
promise_test(async t => {
const div = addDiv(t);
div.style.animation = 'anim 100s';
const animation = div.getAnimations()[0];
assert_true(animation.pending);
animation.effect = new KeyframeEffect(div,
{ left: [ '0px' , '100px'] },
100 * MS_PER_SEC);
assert_true(animation.pending);
await animation.ready;
assert_false(animation.pending);
}, 'A play-pending animation\'s effect whose effect is replaced still exits ' +
'the pending state');
promise_test(async t => {
const div1 = addDiv(t);
const div2 = addDiv(t);
const watcher1 = new EventWatcher(t, div1, 'animationstart',
fastEventsTimeout);
// Watch |div2| as well to ensure it does *not* get events.
const watcher2 = new EventWatcher(t, div2, 'animationstart');
div1.style.animation = 'anim 100s';
const animation = div1.getAnimations()[0];
animation.effect = new KeyframeEffect(div2,
{ left: [ '0px', '100px' ] },
100 * MS_PER_SEC);
await watcher1.wait_for('animationstart');
assert_equals(animation.effect.target, div2);
// Then wait a couple of frames and check that no event was dispatched.
await waitForAnimationFrames(2);
}, 'CSS animation events are dispatched at the original element even after'
+ ' setting an effect with a different target element');
promise_test(async t => {
const div = addDiv(t);
const watcher = new EventWatcher(t, div, [ 'animationstart',
'animationend',
'animationcancel' ],
fastEventsTimeout);
div.style.animation = 'anim 100s';
const animation = div.getAnimations()[0];
animation.finish();
await watcher.wait_for([ 'animationstart', 'animationend' ]);
// Set a longer effect
animation.effect = new KeyframeEffect(div,
{ left: [ '0px', '100px' ] },
200 * MS_PER_SEC);
await watcher.wait_for('animationstart');
}, 'After replacing a finished animation\'s effect with a longer one ' +
'it fires an animationstart event');
test(t => {
const div = addDiv(t);
div.style.animation = 'anim 100s';
div.style.animationComposition = 'add';
const animation = div.getAnimations()[0];
assert_equals(animation.effect.composite, 'add');
}, 'Setting animation-composition sets the composite property on the effect');
test(t => {
const div = addDiv(t);
// Create custom keyframes so we can tweak them
const stylesheet = document.styleSheets[0];
const keyframes = '@keyframes anim-custom { to { left: 100px } }';
const ruleIndex = stylesheet.insertRule(keyframes, 0);
const keyframesRule = stylesheet.cssRules[ruleIndex];
t.add_cleanup(function() {
stylesheet.deleteRule(ruleIndex);
});
div.style.animation = 'anim-custom 100s';
// Replace the effect
const animation = div.getAnimations()[0];
animation.effect = new KeyframeEffect(
div,
{ left: '200px' },
200 * MS_PER_SEC
);
// Update the timing properties
div.style.animationDuration = '4s';
div.style.animationIterationCount = '6';
div.style.animationDirection = 'reverse';
div.style.animationDelay = '8s';
div.style.animationFillMode = 'both';
div.style.animationPlayState = 'paused';
div.style.animationComposition = 'add';
// Update the keyframes
keyframesRule.deleteRule(0);
keyframesRule.appendRule('to { left: 300px }');
// Check nothing (except the play state) changed
assert_equals(
animation.effect.getTiming().duration,
200 * MS_PER_SEC,
'duration should be the value set by the API'
);
assert_equals(
animation.effect.getTiming().iterations,
1,
'iterations should be the value set by the API'
);
assert_equals(
animation.effect.getTiming().direction,
'normal',
'direction should be the value set by the API'
);
assert_equals(
animation.effect.getTiming().delay,
0,
'delay should be the value set by the API'
);
assert_equals(
animation.effect.getTiming().fill,
'auto',
'fill should be the value set by the API'
);
assert_equals(
animation.effect.getKeyframes()[0].left,
'200px',
'keyframes should be the value set by the API'
);
assert_equals(
animation.effect.composite,
'replace',
'composite should be the value set by the API'
);
// Unlike the other properties animation-play-state maps to the Animation
// not the KeyframeEffect so it should be overridden.
assert_equals(
animation.playState,
'paused',
'play state should be the value set by style'
);
}, 'Replacing the effect of a CSSAnimation causes subsequent changes to'
+ ' corresponding animation-* properties to be ignored');
</script>