Mypal/dom/animation/test/css-transitions/file_effect-target.html

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HTML

<!doctype html>
<meta charset=utf-8>
<script src="../testcommon.js"></script>
<body>
<script>
'use strict';
test(function(t) {
var div = addDiv(t);
div.style.left = '0px';
window.getComputedStyle(div).transitionProperty;
div.style.transition = 'left 100s';
div.style.left = '100px';
var animation = div.getAnimations()[0];
assert_equals(animation.effect.target, div,
'Animation.target is the animatable div');
}, 'Returned CSS transitions have the correct Animation.target');
test(function(t) {
addStyle(t, { '.init::after': 'content: ""; width: 0px; height: 0px; ' +
'transition: all 10s;',
'.change::after': 'width: 100px; height: 100px;' });
var div = addDiv(t, { class: 'init' });
flushComputedStyle(div);
div.classList.add('change');
var anims = document.getAnimations();
assert_equals(anims.length, 2,
'Got transitions running on ::after pseudo element');
assert_equals(anims[0].effect.target, anims[1].effect.target,
'Both transitions return the same target object');
}, 'effect.target should return the same CSSPseudoElement object each time');
test(function(t) {
addStyle(t, { '.init::after': 'content: ""; width: 0px; transition: all 10s;',
'.change::after': 'width: 100px;' });
var div = addDiv(t, { class: 'init' });
flushComputedStyle(div);
div.classList.add('change');
var pseudoTarget = document.getAnimations()[0].effect.target;
var effect = new KeyframeEffectReadOnly(pseudoTarget,
{ background: ["blue", "red"] },
3000);
var newAnim = new Animation(effect, document.timeline);
newAnim.play();
var anims = document.getAnimations();
assert_equals(anims.length, 2,
'Got animations running on ::after pseudo element');
assert_not_equals(anims[0], newAnim,
'The scriped-generated animation appears last');
assert_equals(newAnim.effect.target, pseudoTarget,
'The effect.target of the scripted-generated animation is ' +
'the same as the one from the argument of ' +
'KeyframeEffectReadOnly constructor');
assert_equals(anims[0].effect.target, newAnim.effect.target,
'Both the transition and the scripted-generated animation ' +
'return the same target object');
}, 'effect.target from the script-generated animation should return the same ' +
'CSSPseudoElement object as that from the CSS generated transition');
done();
</script>
</body>