<!doctype html>
<meta charset=utf-8>
<title>Document.getAnimations() for CSS animations</title>
<link rel="help" href="https://drafts.csswg.org/css-animations-2/#animation-composite-order">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/testcommon.js"></script>
<style>
@keyframes animLeft {
to { left: 100px }
}
@keyframes animTop {
to { top: 100px }
}
@keyframes animBottom {
to { bottom: 100px }
}
@keyframes animRight {
to { right: 100px }
}
@keyframes anim1 {
to { left: 100px }
}
@keyframes anim2 {
to { top: 100px }
}
@keyframes anim3 {
to { bottom: 100px }
}
@keyframes anim4 {
to { right: 100px }
}
</style>
<div id="log"></div>
<script>
'use strict';
test(t => {
assert_equals(document.getAnimations().length, 0,
'getAnimations returns an empty sequence for a document'
+ ' with no animations');
}, 'getAnimations for non-animated content');
test(t => {
const div = addDiv(t);
// Add an animation
div.style.animation = 'animLeft 100s';
assert_equals(document.getAnimations().length, 1,
'getAnimations returns a running CSS Animation');
// Add another animation
div.style.animation = 'animLeft 100s, animTop 100s';
assert_equals(document.getAnimations().length, 2,
'getAnimations returns two running CSS Animations');
// Remove both
div.style.animation = '';
assert_equals(document.getAnimations().length, 0,
'getAnimations returns no running CSS Animations');
}, 'getAnimations for CSS Animations');
test(t => {
const div = addDiv(t);
const animation1 = 'animLeft 100s'
const animation2 = 'animBottom 100s'
div.style.animation = animation1;
const animations1 = document.getAnimations();
assert_equals(animations1.length, 1,
'getAnimations returns all running CSS Animations');
div.style.animation = animation2 + ', ' + animation1;
const animations = document.getAnimations();
assert_equals(animations.length, 2,
'getAnimations returns all running CSS Animations');
assert_equals(animations[0].animationName, 'animBottom',
'Order of first animation returned');
assert_equals(animations[1].animationName, 'animLeft',
'Order of second animation returned');
}, 'Order of CSS Animations - within an element unaffected by start time');
test(t => {
const div = addDiv(t);
div.style.animation = 'animLeft 100s, animTop 100s, animRight 100s, ' +
'animBottom 100s';
const animations = document.getAnimations();
assert_equals(animations.length, 4,
'getAnimations returns all running CSS Animations');
assert_equals(animations[0].animationName, 'animLeft',
'Order of first animation returned');
assert_equals(animations[1].animationName, 'animTop',
'Order of second animation returned');
assert_equals(animations[2].animationName, 'animRight',
'Order of third animation returned');
assert_equals(animations[3].animationName, 'animBottom',
'Order of fourth animation returned');
}, 'Order of CSS Animations - within an element');
test(t => {
const div1 = addDiv(t, { style: 'animation: animLeft 100s' });
const div2 = addDiv(t, { style: 'animation: animLeft 100s' });
const div3 = addDiv(t, { style: 'animation: animLeft 100s' });
const div4 = addDiv(t, { style: 'animation: animLeft 100s' });
let animations = document.getAnimations();
assert_equals(animations.length, 4,
'getAnimations returns all running CSS Animations');
assert_equals(animations[0].effect.target, div1,
'Order of first animation returned');
assert_equals(animations[1].effect.target, div2,
'Order of second animation returned');
assert_equals(animations[2].effect.target, div3,
'Order of third animation returned');
assert_equals(animations[3].effect.target, div4,
'Order of fourth animation returned');
// Order should be depth-first pre-order so add some depth as follows:
//
// <parent>
// / |
// 2 3
// / \
// 1 4
//
// Which should give: 2, 1, 4, 3
div2.appendChild(div1);
div2.appendChild(div4);
animations = document.getAnimations();
assert_equals(animations[0].effect.target, div2,
'Order of first animation returned after tree surgery');
assert_equals(animations[1].effect.target, div1,
'Order of second animation returned after tree surgery');
assert_equals(animations[2].effect.target, div4,
'Order of third animation returned after tree surgery');
assert_equals(animations[3].effect.target, div3,
'Order of fourth animation returned after tree surgery');
}, 'Order of CSS Animations - across elements');
test(t => {
const div1 = addDiv(t, { style: 'animation: animLeft 100s, animTop 100s' });
const div2 = addDiv(t, { style: 'animation: animBottom 100s' });
let expectedResults = [ [ div1, 'animLeft' ],
[ div1, 'animTop' ],
[ div2, 'animBottom' ] ];
let animations = document.getAnimations();
assert_equals(animations.length, expectedResults.length,
'getAnimations returns all running CSS Animations');
animations.forEach((anim, i) => {
assert_equals(anim.effect.target, expectedResults[i][0],
'Target of animation in position ' + i);
assert_equals(anim.animationName, expectedResults[i][1],
'Name of animation in position ' + i);
});
// Modify tree structure and animation list
div2.appendChild(div1);
div1.style.animation = 'animLeft 100s, animRight 100s, animTop 100s';
expectedResults = [ [ div2, 'animBottom' ],
[ div1, 'animLeft' ],
[ div1, 'animRight' ],
[ div1, 'animTop' ] ];
animations = document.getAnimations();
assert_equals(animations.length, expectedResults.length,
'getAnimations returns all running CSS Animations after ' +
'making changes');
animations.forEach((anim, i) => {
assert_equals(anim.effect.target, expectedResults[i][0],
'Target of animation in position ' + i + ' after changes');
assert_equals(anim.animationName, expectedResults[i][1],
'Name of animation in position ' + i + ' after changes');
});
}, 'Order of CSS Animations - across and within elements');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s, animTop 100s' });
const animLeft = document.getAnimations()[0];
assert_equals(animLeft.animationName, 'animLeft',
'Originally, animLeft animation comes first');
// Disassociate animLeft from markup and restart
div.style.animation = 'animTop 100s';
animLeft.play();
const animations = document.getAnimations();
assert_equals(animations.length, 2,
'getAnimations returns markup-bound and free animations');
assert_equals(animations[0].animationName, 'animTop',
'Markup-bound animations come first');
assert_equals(animations[1], animLeft, 'Free animations come last');
}, 'Order of CSS Animations - markup-bound vs free animations');
test(t => {
// Add an animation first
const div = addDiv(t, { style: 'animation: animLeft 100s' });
const animLeft = document.getAnimations()[0];
// Disassociate animLeft from markup and restart
div.style.animation = '';
animLeft.play();
div.style.top = '0px';
div.style.transition = 'all 100s';
flushComputedStyle(div);
// *Then* add a transition
div.style.top = '100px';
flushComputedStyle(div);
// Although the transition was added later, it should come first in the list
const animations = document.getAnimations();
assert_equals(animations.length, 2,
'Both CSS animations and transitions are returned');
assert_class_string(animations[0], 'CSSTransition', 'Transition comes first');
assert_equals(animations[1], animLeft, 'Free animations come last');
}, 'Order of CSS Animations - free animation vs CSS Transitions');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s, animTop 100s' });
const animLeft = document.getAnimations()[0];
const animTop = document.getAnimations()[1];
// Disassociate both animations from markup and restart in opposite order
div.style.animation = '';
animTop.play();
animLeft.play();
const animations = document.getAnimations();
assert_equals(animations.length, 2,
'getAnimations returns free animations');
assert_equals(animations[0], animTop,
'Free animations are returned in the order they are started');
assert_equals(animations[1], animLeft,
'Animations started later are returned later');
// Restarting an animation should have no effect
animTop.cancel();
animTop.play();
assert_equals(document.getAnimations()[0], animTop,
'After restarting, the ordering of free animations' +
' does not change');
}, 'Order of CSS Animations - free animations');
test(t => {
// Add an animation first
const div = addDiv(t, { style: 'animation: animLeft 100s' });
div.style.top = '0px';
div.style.transition = 'all 100s';
flushComputedStyle(div);
// *Then* add a transition
div.style.top = '100px';
flushComputedStyle(div);
// Although the transition was added later, it should come first in the list
const animations = document.getAnimations();
assert_equals(animations.length, 2,
'Both CSS animations and transitions are returned');
assert_class_string(animations[0], 'CSSTransition', 'Transition comes first');
assert_class_string(animations[1], 'CSSAnimation', 'Animation comes second');
}, 'Order of CSS Animations and CSS Transitions');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s forwards' });
div.getAnimations()[0].finish();
assert_equals(document.getAnimations().length, 1,
'Forwards-filling CSS animations are returned');
}, 'Finished but filling CSS Animations are returned');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s' });
div.getAnimations()[0].finish();
assert_equals(document.getAnimations().length, 0,
'Non-filling finished CSS animations are not returned');
}, 'Finished but not filling CSS Animations are not returned');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s 100s' });
assert_equals(document.getAnimations().length, 1,
'Yet-to-start CSS animations are returned');
}, 'Yet-to-start CSS Animations are returned');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s' });
div.getAnimations()[0].cancel();
assert_equals(document.getAnimations().length, 0,
'CSS animations canceled by the API are not returned');
}, 'CSS Animations canceled via the API are not returned');
test(t => {
const div = addDiv(t, { style: 'animation: animLeft 100s' });
const anim = div.getAnimations()[0];
anim.cancel();
anim.play();
assert_equals(document.getAnimations().length, 1,
'CSS animations canceled and restarted by the API are ' +
'returned');
}, 'CSS Animations canceled and restarted via the API are returned');
test(t => {
addStyle(t, {
'#parent::after': "content: ''; animation: anim1 100s ; ",
'#parent::before': "content: ''; animation: anim2 100s;",
'#child::after': "content: ''; animation: anim3 100s;",
'#child::before': "content: ''; animation: anim4 100s;",
});
const parent = addDiv(t, { id: 'parent' });
const child = addDiv(t, { id: 'child'});
parent.appendChild(child);
var animations = document.getAnimations();
var expectedAnimations = [
[parent, '::before', 'anim2'],
[parent, '::after', 'anim1'],
[child, '::before', 'anim4'],
[child, '::after', 'anim3'],
];
pseudoAnimCompare(animations, expectedAnimations)
// Swap animation1 and aimation3's effect
var anim1 = animations[0];
var anim3 = animations[2];
const temp = anim1.effect;
anim1.effect = anim3.effect;
anim3.effect = temp;
animations = document.getAnimations();
expectedAnimations = [
[child, '::before', 'anim2'],
[parent, '::after', 'anim1'],
[parent, '::before', 'anim4'],
[child, '::after', 'anim3'],
];
pseudoAnimCompare(animations, expectedAnimations)
}, 'pseudo element with replaced target does not affect animation ordering');
function pseudoAnimCompare(animations, expectedAnimations) {
assert_equals(
animations.length,
expectedAnimations.length,
'CSS animations on both pseudo-elements and elements are returned'
);
for (const [index, expected] of expectedAnimations.entries()) {
const [element, pseudo, name] = expected;
const actual = animations[index];
if (pseudo) {
assert_equals(
actual.effect.target,
element,
`Animation #${index + 1} has the expected target`
);
assert_equals(
actual.effect.pseudoElement,
pseudo,
`Animation #${index + 1} has the expected pseudo type`
);
if (name) {
assert_equals(
actual.animationName,
name,
`Animation #${index + 1} has the expected name`
);
}
} else {
assert_equals(
actual.effect.target,
element,
`Animation #${index + 1} has the expected target`
);
assert_equals(
actual.effect.pseudoElement,
null,
`Animation #${index + 1} has a null pseudo type`
);
}
}
}
function pseudoTest(description, testMarkerPseudos) {
test(t => {
// Create two divs with the following arrangement:
//
// parent
// (::marker,) // Optionally
// ::before,
// ::after
// |
// child
addStyle(t, {
'#parent::after': "content: ''; animation: animLeft 100s;",
'#parent::before': "content: ''; animation: animRight 100s;",
});
if (testMarkerPseudos) {
addStyle(t, {
'#parent': 'display: list-item;',
'#parent::marker': "content: ''; animation: animLeft 100s;",
});
}
const parent = addDiv(t, { id: 'parent' });
const child = addDiv(t);
parent.appendChild(child);
for (const div of [parent, child]) {
div.setAttribute('style', 'animation: animBottom 100s');
}
const expectedAnimations = [
[parent, undefined],
[parent, '::marker'],
[parent, '::before'],
[parent, '::after'],
[child, undefined],
];
if (!testMarkerPseudos) {
expectedAnimations.splice(1, 1);
}
const animations = document.getAnimations();
pseudoAnimCompare(animations, expectedAnimations)
}, description);
}
pseudoTest('CSS Animations targetting (pseudo-)elements should have correct '
+ 'order after sorting', false);
pseudoTest('CSS Animations targetting (pseudo-)elements should have correct '
+ 'order after sorting (::marker)', true);
</script>
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