<!doctype html>
<meta charset=utf-8>
<title>Document.getAnimations() for CSS transitions</title>
<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#animation-composite-order">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/helper.js"></script>
<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 a couple of transitions
div.style.left = '0px';
div.style.top = '0px';
getComputedStyle(div).transitionProperty;
div.style.transition = 'all 100s';
div.style.left = '100px';
div.style.top = '100px';
assert_equals(document.getAnimations().length, 2,
'getAnimations returns two running CSS Transitions');
// Remove both
div.style.transitionProperty = 'none';
assert_equals(document.getAnimations().length, 0,
'getAnimations returns no running CSS Transitions');
}, 'getAnimations for CSS Transitions');
test(t => {
const div = addDiv(t);
// Add a couple of transitions
div.style.top = '0px';
div.style.left = '0px';
getComputedStyle(div).transitionProperty;
div.style.transition = 'all 100s';
div.style.top = '100px';
div.style.left = '100px';
var animations = document.getAnimations();
assert_equals(animations.length, 2,
'getAnimations returns two running CSS Transitions');
assert_equals(animations[0].transitionProperty, 'left');
assert_equals(animations[1].transitionProperty, 'top');
}, 'getAnimations for CSS Transitions sort by property name');
promise_test(async t => {
const div = addDiv(t);
// Add a couple of transitions
div.style.top = '0px';
div.style.left = '0px';
getComputedStyle(div).transitionProperty;
div.style.transition = 'all 100s';
div.style.top = '100px';
div.style.left = '100px';
var animations = document.getAnimations();
assert_equals(animations.length, 2,
'getAnimations returns two running CSS Transitions');
assert_equals(animations[0].transitionProperty, 'left');
assert_equals(animations[1].transitionProperty, 'top');
// Add one more transition. As the previous call to getAnimations triggered a
// style change, the new animation is in a higher transition generation even
// though no frame was rendered for the previous transitions.
div.style.opacity = '1'
div.style.transition = 'all 100s';
div.style.opacity = '0'
animations = document.getAnimations();
assert_equals(animations.length, 3,
'getAnimations returns three running CSS Transitions');
assert_equals(animations[0].transitionProperty, 'left', '1');
assert_equals(animations[1].transitionProperty, 'top', '2');
assert_equals(animations[2].transitionProperty, 'opacity', '3');
}, 'getAnimations for CSS Transitions sort by transition generation');
function pseudoTest(description, testMarkerPseudos) {
test(t => {
// Create two divs with the following arrangement:
//
// parent
// (::marker,) // Optionally
// ::before,
// ::after
// |
// child
addStyle(t, {
'.init::after': 'content: ""; width: 0px; transition: all 100s;',
'.init::before': 'content: ""; width: 0px; transition: all 100s;',
'.change::after': 'width: 100px;',
'.change::before': 'width: 100px;',
});
if (testMarkerPseudos) {
addStyle(t, {
'.init::marker': 'content: ""; color: red; transition: all 100s;',
'.change::marker': 'color: green;',
});
}
const parent = addDiv(t, { 'style': 'display: list-item' });
const child = addDiv(t);
parent.appendChild(child);
parent.style.left = '0px';
parent.style.transition = 'left 100s';
parent.classList.add('init');
child.style.left = '0px';
child.style.transition = 'left 100s';
getComputedStyle(parent).left;
parent.style.left = '100px';
parent.classList.add('change');
child.style.left = '100px';
const expectedTransitions = [
[parent, undefined],
[parent, '::marker'],
[parent, '::before'],
[parent, '::after'],
[child, undefined],
];
if (!testMarkerPseudos) {
expectedTransitions.splice(1, 1);
}
const transitions = document.getAnimations();
assert_equals(
transitions.length,
expectedTransitions.length,
'CSS transition on both pseudo-elements and elements are returned'
);
for (const [index, expected] of expectedTransitions.entries()) {
const [element, pseudo] = expected;
const actual = transitions[index];
if (pseudo) {
assert_equals(
actual.effect.target,
element,
`Transition #${index + 1} has expected target`
);
assert_equals(
actual.effect.pseudoElement,
pseudo,
`Transition #${index + 1} has expected pseudo type`
);
} else {
assert_equals(
actual.effect.target,
element,
`Transition #${index + 1} has expected target`
);
assert_equals(
actual.effect.pseudoElement,
null,
`Transition #${index + 1} has null pseudo type`
);
}
}
}, description);
}
pseudoTest('CSS Transitions targetting (pseudo-)elements should have correct '
+ 'order after sorting', false)
pseudoTest('CSS Transitions targetting (pseudo-)elements should have correct '
+ 'order after sorting (::marker)', true)
promise_test(async t => {
const div = addDiv(t, { style: 'left: 0px; transition: all 50ms' });
getComputedStyle(div).left;
div.style.left = '100px';
const animations = div.getAnimations();
assert_equals(animations.length, 1, 'Got transition');
await animations[0].finished;
assert_equals(document.getAnimations().length, 0,
'No animations returned');
}, 'Transitions are not returned after they have finished');
</script>
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