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85 lines
2.7 KiB
HTML
85 lines
2.7 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Effect composition</title>
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<link rel="help" href="https://drafts.csswg.org/web-animations/#effect-composition">
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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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<div id="log"></div>
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<script>
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'use strict';
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for (const composite of ['accumulate', 'add']) {
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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 =
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div.animate({ marginLeft: ['0px', '10px'], composite }, 100);
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anim.currentTime = 50;
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assert_equals(getComputedStyle(div).marginLeft, '15px',
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'Animated margin-left style at 50%');
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}, `${composite} onto the base value`);
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test(t => {
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const div = createDiv(t);
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const anims = [];
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anims.push(div.animate({ marginLeft: ['10px', '20px'],
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composite: 'replace' },
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100));
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anims.push(div.animate({ marginLeft: ['0px', '10px'],
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composite },
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100));
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for (const anim of anims) {
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anim.currentTime = 50;
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}
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assert_equals(getComputedStyle(div).marginLeft, '20px',
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'Animated style at 50%');
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}, `${composite} onto an underlying animation value`);
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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 =
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div.animate([{ marginLeft: '10px', composite },
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{ marginLeft: '30px', composite: 'replace' }],
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100);
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anim.currentTime = 50;
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assert_equals(getComputedStyle(div).marginLeft, '25px',
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'Animated style at 50%');
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}, `Composite when mixing ${composite} and replace`);
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test(t => {
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const div = createDiv(t);
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div.style.marginLeft = '10px';
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const anim =
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div.animate([{ marginLeft: '10px', composite: 'replace' },
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{ marginLeft: '20px' }],
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{ duration: 100 , composite });
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anim.currentTime = 50;
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assert_equals(getComputedStyle(div).marginLeft, '20px',
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'Animated style at 50%');
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}, `${composite} specified on a keyframe overrides the composite mode of`
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+ ' the effect');
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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 =
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div.animate([{ marginLeft: '10px', composite: 'replace' },
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{ marginLeft: '20px' }],
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100);
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anim.effect.composite = composite;
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anim.currentTime = 50; // (10 + (10 + 20)) * 0.5
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assert_equals(getComputedStyle(div).marginLeft, '20px',
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'Animated style at 50%');
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}, 'unspecified composite mode on a keyframe is overriden by setting'
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+ ` ${composite} of the effect`);
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}
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</script>
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