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<!doctype html>
<meta charset=utf-8>
<title>Tests for CSS animation event order</title>
<link rel="help" href="https://drafts.csswg.org/css-animations-2/#event-dispatch"/>
<script src="../testcommon.js"></script>
<style>
@keyframes anim {
from { margin-left: 0px; }
to { margin-left: 100px; }
}
</style>
<body>
<script type='text/javascript'>
'use strict';
/**
* Asserts that the set of actual and received events match.
* @param actualEvents An array of the received AnimationEvent objects.
* @param expectedEvents A series of array objects representing the expected
* events, each having the form:
* [ event type, target element, elapsed time ]
*/
function checkEvents(actualEvents, ...expectedEvents) {
assert_equals(actualEvents.length, expectedEvents.length,
`Number of actual events (${actualEvents.length}: \
${actualEvents.map(event => event.type).join(', ')}) should match expected \
events (${expectedEvents.map(event => event.type).join(', ')})`);
actualEvents.forEach((actualEvent, i) => {
assert_equals(expectedEvents[i][0], actualEvent.type,
'Event type should match');
assert_equals(expectedEvents[i][1], actualEvent.target,
'Event target should match');
assert_equals(expectedEvents[i][2], actualEvent.elapsedTime,
'Event\'s elapsed time should match');
});
}
function setupAnimation(t, animationStyle, receiveEvents) {
const div = addDiv(t, { style: "animation: " + animationStyle });
const watcher = new EventWatcher(t, div, [ 'animationstart',
'animationiteration',
'animationend' ]);
['start', 'iteration', 'end'].forEach(name => {
div['onanimation' + name] = function(evt) {
receiveEvents.push({ type: evt.type,
target: evt.target,
elapsedTime: evt.elapsedTime });
}.bind(this);
});
const animation = div.getAnimations()[0];
return [animation, watcher, div];
}
promise_test(function(t) {
let events = [];
const [animation1, watcher1, div1] =
setupAnimation(t, 'anim 100s 2 paused', events);
const [animation2, watcher2, div2] =
setupAnimation(t, 'anim 100s 2 paused', events);
return Promise.all([ watcher1.wait_for('animationstart'),
watcher2.wait_for('animationstart') ]).then(function() {
checkEvents(events, ['animationstart', div1, 0],
['animationstart', div2, 0]);
events.length = 0; // Clear received event array
animation1.currentTime = 100 * MS_PER_SEC;
animation2.currentTime = 100 * MS_PER_SEC;
return Promise.all([ watcher1.wait_for('animationiteration'),
watcher2.wait_for('animationiteration') ]);
}).then(function() {
checkEvents(events, ['animationiteration', div1, 100],
['animationiteration', div2, 100]);
events.length = 0; // Clear received event array
animation1.finish();
animation2.finish();
return Promise.all([ watcher1.wait_for('animationend'),
watcher2.wait_for('animationend') ]);
}).then(function() {
checkEvents(events, ['animationend', div1, 200],
['animationend', div2, 200]);
});
}, 'Test same events are ordered by elements.');
promise_test(function(t) {
let events = [];
const [animation1, watcher1, div1] =
setupAnimation(t, 'anim 200s 400s', events);
const [animation2, watcher2, div2] =
setupAnimation(t, 'anim 300s 2', events);
return watcher2.wait_for('animationstart').then(function(evt) {
animation1.currentTime = 400 * MS_PER_SEC;
animation2.currentTime = 400 * MS_PER_SEC;
events.length = 0; // Clear received event array
return Promise.all([ watcher1.wait_for('animationstart'),
watcher2.wait_for('animationiteration') ]);
}).then(function() {
checkEvents(events, ['animationiteration', div2, 300],
['animationstart', div1, 0]);
});
}, 'Test start and iteration events are ordered by time.');
promise_test(function(t) {
let events = [];
const [animation1, watcher1, div1] =
setupAnimation(t, 'anim 150s', events);
const [animation2, watcher2, div2] =
setupAnimation(t, 'anim 100s 2', events);
return Promise.all([ watcher1.wait_for('animationstart'),
watcher2.wait_for('animationstart') ]).then(function() {
animation1.currentTime = 150 * MS_PER_SEC;
animation2.currentTime = 150 * MS_PER_SEC;
events.length = 0; // Clear received event array
return Promise.all([ watcher1.wait_for('animationend'),
watcher2.wait_for('animationiteration') ]);
}).then(function() {
checkEvents(events, ['animationiteration', div2, 100],
['animationend', div1, 150]);
});
}, 'Test iteration and end events are ordered by time.');
promise_test(function(t) {
let events = [];
const [animation1, watcher1, div1] =
setupAnimation(t, 'anim 100s 100s', events);
const [animation2, watcher2, div2] =
setupAnimation(t, 'anim 100s 2', events);
animation1.finish();
animation2.finish();
return Promise.all([ watcher1.wait_for([ 'animationstart',
'animationend' ]),
watcher2.wait_for([ 'animationstart',
'animationend' ]) ]).then(function() {
checkEvents(events, ['animationstart', div2, 0],
['animationstart', div1, 0],
['animationend', div1, 100],
['animationend', div2, 200]);
});
}, 'Test start and end events are sorted correctly when fired simultaneously');
done();
</script>
</body>
</html>
|
