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109 lines
3.7 KiB
HTML
109 lines
3.7 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>KeyframeEffect.target</title>
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<link rel="help"
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href="https://drafts.csswg.org/web-animations/#dom-keyframeeffect-target">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="../../testcommon.js"></script>
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<body>
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<div id="log"></div>
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<script>
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'use strict';
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const gKeyFrames = { 'marginLeft': ['0px', '100px'] };
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test(t => {
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const div = createDiv(t);
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const effect = new KeyframeEffect(null, gKeyFrames, 100 * MS_PER_SEC);
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effect.target = div;
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const anim = new Animation(effect, document.timeline);
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anim.play();
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(getComputedStyle(div).marginLeft, '50px',
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'Value at 50% progress');
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}, 'Test setting target before constructing the associated animation');
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test(t => {
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const div = createDiv(t);
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div.style.marginLeft = '10px';
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const effect = new KeyframeEffect(null, gKeyFrames, 100 * MS_PER_SEC);
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const anim = new Animation(effect, document.timeline);
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anim.play();
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(getComputedStyle(div).marginLeft, '10px',
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'Value at 50% progress before setting new target');
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effect.target = div;
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assert_equals(getComputedStyle(div).marginLeft, '50px',
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'Value at 50% progress after setting new target');
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}, 'Test setting target from null to a valid target');
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test(t => {
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const div = createDiv(t);
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div.style.marginLeft = '10px';
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const anim = div.animate(gKeyFrames, 100 * MS_PER_SEC);
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(getComputedStyle(div).marginLeft, '50px',
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'Value at 50% progress before clearing the target')
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anim.effect.target = null;
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assert_equals(getComputedStyle(div).marginLeft, '10px',
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'Value after clearing the target')
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}, 'Test setting target from a valid target to null');
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test(t => {
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const a = createDiv(t);
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const b = createDiv(t);
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a.style.marginLeft = '10px';
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b.style.marginLeft = '20px';
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const anim = a.animate(gKeyFrames, 100 * MS_PER_SEC);
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(getComputedStyle(a).marginLeft, '50px',
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'Value of 1st element (currently targeted) before ' +
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'changing the effect target');
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assert_equals(getComputedStyle(b).marginLeft, '20px',
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'Value of 2nd element (currently not targeted) before ' +
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'changing the effect target');
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anim.effect.target = b;
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assert_equals(getComputedStyle(a).marginLeft, '10px',
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'Value of 1st element (currently not targeted) after ' +
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'changing the effect target');
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assert_equals(getComputedStyle(b).marginLeft, '50px',
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'Value of 2nd element (currently targeted) after ' +
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'changing the effect target');
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// This makes sure the animation property is changed correctly on new
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// targeted element.
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anim.currentTime = 75 * MS_PER_SEC;
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assert_equals(getComputedStyle(b).marginLeft, '75px',
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'Value of 2nd target (currently targeted) after ' +
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'changing the animation current time.');
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}, 'Test setting target from a valid target to another target');
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promise_test(async t => {
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const animation = createDiv(t).animate(
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{ opacity: 0 },
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{ duration: 1, fill: 'forwards' }
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);
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const foreignElement
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= document.createElementNS('http://example.org/test', 'test');
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document.body.appendChild(foreignElement);
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t.add_cleanup(() => {
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foreignElement.remove();
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});
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animation.effect.target = foreignElement;
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// Wait a frame to make sure nothing bad happens when the UA tries to update
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// style.
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await waitForNextFrame();
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}, 'Target element can be set to a foreign element');
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</script>
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</body>
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