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<!doctype html>
<meta charset=utf-8>
<title>Tests for CSS animation event dispatch</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>
'use strict';
/**
* Helper class to record the elapsedTime member of each event.
* The EventWatcher class in testharness.js allows us to wait on
* multiple events in a certain order but only records the event
* parameters of the most recent event.
*/
function AnimationEventHandler(target) {
this.target = target;
this.target.onanimationstart = function(evt) {
this.animationstart = evt.elapsedTime;
}.bind(this);
this.target.onanimationiteration = function(evt) {
this.animationiteration = evt.elapsedTime;
}.bind(this);
this.target.onanimationend = function(evt) {
this.animationend = evt.elapsedTime;
}.bind(this);
}
AnimationEventHandler.prototype.clear = function() {
this.animationstart = undefined;
this.animationiteration = undefined;
this.animationend = undefined;
}
function setupAnimation(t, animationStyle) {
var div = addDiv(t, { style: "animation: " + animationStyle });
var watcher = new EventWatcher(t, div, [ 'animationstart',
'animationiteration',
'animationend' ]);
var handler = new AnimationEventHandler(div);
var animation = div.getAnimations()[0];
return [animation, watcher, handler, div];
}
promise_test(function(t) {
// Add 1ms delay to ensure that the delay is not included in the elapsedTime.
const [animation, watcher] = setupAnimation(t, 'anim 100s 1ms');
return watcher.wait_for('animationstart').then(function(evt) {
assert_equals(evt.elapsedTime, 0.0);
});
}, 'Idle -> Active');
promise_test(function(t) {
const [animation, watcher, handler] = setupAnimation(t, 'anim 100s');
// Seek to After phase.
animation.finish();
return watcher.wait_for([ 'animationstart',
'animationend' ]).then(function() {
assert_equals(handler.animationstart, 0.0);
assert_equals(handler.animationend, 100);
});
}, 'Idle -> After');
promise_test(function(t) {
const [animation, watcher, handler] =
setupAnimation(t, 'anim 100s 100s paused');
return animation.ready.then(function() {
// Seek to Active phase.
animation.currentTime = 100 * MS_PER_SEC;
return watcher.wait_for('animationstart');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 0.0);
});
}, 'Before -> Active');
promise_test(function(t) {
const [animation, watcher, handler] =
setupAnimation(t, 'anim 100s 100s paused');
return animation.ready.then(function() {
// Seek to After phase.
animation.finish();
return watcher.wait_for([ 'animationstart', 'animationend' ]);
}).then(function(evt) {
assert_equals(handler.animationstart, 0.0);
assert_equals(handler.animationend, 100.0);
});
}, 'Before -> After');
promise_test(function(t) {
const [animation, watcher, handler] =
setupAnimation(t, 'anim 100s 100s paused');
// Seek to Active phase.
animation.currentTime = 100 * MS_PER_SEC;
return watcher.wait_for('animationstart').then(function() {
// Seek to Before phase.
animation.currentTime = 0;
return watcher.wait_for('animationend');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 0.0);
});
}, 'Active -> Before');
promise_test(function(t) {
const [animation, watcher, handler] = setupAnimation(t, 'anim 100s paused');
return watcher.wait_for('animationstart').then(function(evt) {
// Seek to After phase.
animation.finish();
return watcher.wait_for('animationend');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 100.0);
});
}, 'Active -> After');
promise_test(function(t) {
const [animation, watcher, handler] =
setupAnimation(t, 'anim 100s 100s paused');
// Seek to After phase.
animation.finish();
return watcher.wait_for([ 'animationstart',
'animationend' ]).then(function() {
// Seek to Before phase.
animation.currentTime = 0;
handler.clear();
return watcher.wait_for([ 'animationstart', 'animationend' ]);
}).then(function() {
assert_equals(handler.animationstart, 100.0);
assert_equals(handler.animationend, 0.0);
});
}, 'After -> Before');
promise_test(function(t) {
const [animation, watcher, handler] =
setupAnimation(t, 'anim 100s 100s paused');
// Seek to After phase.
animation.finish();
return watcher.wait_for([ 'animationstart',
'animationend' ]).then(function() {
// Seek to Active phase.
animation.currentTime = 100 * MS_PER_SEC;
handler.clear();
return watcher.wait_for('animationstart');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 100.0);
});
}, 'After -> Active');
promise_test(function(t) {
const [animation, watcher, handler]
= setupAnimation(t, 'anim 100s 100s 3 paused');
return animation.ready.then(function() {
// Seek to iteration 0 (no animationiteration event should be dispatched)
animation.currentTime = 100 * MS_PER_SEC;
return watcher.wait_for('animationstart');
}).then(function(evt) {
// Seek to iteration 2
animation.currentTime = 300 * MS_PER_SEC;
handler.clear();
return watcher.wait_for('animationiteration');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 200);
// Seek to After phase (no animationiteration event should be dispatched)
animation.currentTime = 400 * MS_PER_SEC;
return watcher.wait_for('animationend');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 300);
});
}, 'Active -> Active (forwards)');
promise_test(function(t) {
const [animation, watcher, handler] = setupAnimation(t, 'anim 100s 100s 3');
// Seek to After phase.
animation.finish();
return watcher.wait_for([ 'animationstart',
'animationend' ]).then(function() {
// Seek to iteration 2 (no animationiteration event should be dispatched)
animation.pause();
animation.currentTime = 300 * MS_PER_SEC;
return watcher.wait_for('animationstart');
}).then(function() {
// Seek to mid of iteration 0 phase.
animation.currentTime = 200 * MS_PER_SEC;
return watcher.wait_for('animationiteration');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 200.0);
// Seek to before phase (no animationiteration event should be dispatched)
animation.currentTime = 0;
return watcher.wait_for('animationend');
});
}, 'Active -> Active (backwards)');
promise_test(function(t) {
const [animation, watcher, handler, div] =
setupAnimation(t, 'anim 100s paused');
return watcher.wait_for('animationstart').then(function(evt) {
// Seek to Idle phase.
div.style.display = 'none';
flushComputedStyle(div);
// FIXME: bug 1302648: Add test for animationcancel event here.
// Restart this animation.
div.style.display = '';
return watcher.wait_for('animationstart');
});
}, 'Active -> Idle -> Active: animationstart is fired by restarting animation');
promise_test(function(t) {
const [animation, watcher, handler, div] =
setupAnimation(t, 'anim 100s 100s 2 paused');
// Make After.
animation.finish();
return watcher.wait_for([ 'animationstart',
'animationend' ]).then(function(evt) {
animation.playbackRate = -1;
return watcher.wait_for('animationstart');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 200);
// Seek to 1st iteration
animation.currentTime = 200 * MS_PER_SEC - 1;
return watcher.wait_for('animationiteration');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 100);
// Seek to before
animation.currentTime = 100 * MS_PER_SEC - 1;
return watcher.wait_for('animationend');
}).then(function(evt) {
assert_equals(evt.elapsedTime, 0);
assert_equals(animation.playState, 'running'); // delay
});
}, 'Negative playbackRate sanity test(Before -> Active -> Before)');
done();
</script>
</body>
</html>
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