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<!doctype html>
<html>
<head>
<meta charset=utf-8>
<title>Tests for seeking using Animation.startTime</title>
<style>
.animated-div {
margin-left: -10px;
animation-timing-function: linear ! important;
}
@keyframes anim {
from { margin-left: 0px; }
to { margin-left: 100px; }
}
</style>
<script src="../testcommon.js"></script>
</head>
<body>
<script type="text/javascript">
'use strict';
function assert_marginLeft_equals(target, expect, description) {
var marginLeft = parseFloat(getComputedStyle(target).marginLeft);
assert_equals(marginLeft, expect, description);
}
promise_test(function(t) {
var div = addDiv(t, {'class': 'animated-div'});
div.style.animation = "anim 100s";
var animation = div.getAnimations()[0];
return animation.ready.then(function() {
animation.startTime = animation.timeline.currentTime - 90 * MS_PER_SEC
assert_marginLeft_equals(div, 90,
'Computed style is updated when seeking forwards in active interval');
animation.startTime = animation.timeline.currentTime - 10 * MS_PER_SEC;
assert_marginLeft_equals(div, 10,
'Computed style is updated when seeking backwards in active interval');
});
}, 'Seeking forwards and backward in active interval');
promise_test(function(t) {
var div = addDiv(t, {'class': 'animated-div'});
div.style.animation = "anim 100s 100s";
var animation = div.getAnimations()[0];
return animation.ready.then(function(t) {
assert_marginLeft_equals(div, -10,
'Computed style is unaffected in before phase with no backwards fill');
// before -> active (non-active -> active)
animation.startTime = animation.timeline.currentTime - 150 * MS_PER_SEC;
assert_marginLeft_equals(div, 50,
'Computed style is updated when seeking forwards from ' +
'not \'in effect\' to \'in effect\' state');
});
}, 'Seeking to non-\'in effect\' from \'in effect\' (before -> active)');
promise_test(function(t) {
var div = addDiv(t, {'class': 'animated-div'});
div.style.animation = "anim 100s 100s";
var animation = div.getAnimations()[0];
return animation.ready.then(function(t) {
// move to after phase
animation.startTime = animation.timeline.currentTime - 250 * MS_PER_SEC;
assert_marginLeft_equals(div, -10,
'Computed style is unaffected in after phase with no forwards fill');
// after -> active (non-active -> active)
animation.startTime = animation.timeline.currentTime - 150 * MS_PER_SEC;
assert_marginLeft_equals(div, 50,
'Computed style is updated when seeking backwards from ' +
'not \'in effect\' to \'in effect\' state');
});
}, 'Seeking to non-\'in effect\' from \'in effect\' (after -> active)');
promise_test(function(t) {
var div = addDiv(t, {'class': 'animated-div'});
div.style.animation = "anim 100s 100s";
var animation = div.getAnimations()[0];
return animation.ready.then(function(t) {
// move to active phase
animation.startTime = animation.timeline.currentTime - 150 * MS_PER_SEC;
assert_marginLeft_equals(div, 50,
'Computed value is set during active phase');
// active -> before
animation.startTime = animation.timeline.currentTime - 50 * MS_PER_SEC;
assert_marginLeft_equals(div, -10,
'Computed value is not affected after seeking backwards from ' +
'\'in effect\' to not \'in effect\' state');
});
}, 'Seeking to \'in effect\' from non-\'in effect\' (active -> before)');
promise_test(function(t) {
var div = addDiv(t, {'class': 'animated-div'});
div.style.animation = "anim 100s 100s";
var animation = div.getAnimations()[0];
return animation.ready.then(function(t) {
// move to active phase
animation.startTime = animation.timeline.currentTime - 150 * MS_PER_SEC;
assert_marginLeft_equals(div, 50,
'Computed value is set during active phase');
// active -> after
animation.startTime = animation.timeline.currentTime - 250 * MS_PER_SEC;
assert_marginLeft_equals(div, -10,
'Computed value is not affected after seeking forwards from ' +
'\'in effect\' to not \'in effect\' state');
});
}, 'Seeking to \'in effect\' from non-\'in effect\' (active -> after)');
done();
</script>
</body>
</html>
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