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58 lines
1.6 KiB
HTML
58 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<html class="reftest-wait">
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<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
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<link rel="match" href="one-custom-property-animation-ref.html">
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<style>
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.container {
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width: 100px;
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height: 100px;
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animation: expand 5s;
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}
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@keyframes expand {
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0% { --foo: 0; }
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0.01% { --foo: 50; }
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99% { --foo: 50; }
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100% { --foo: 100; }
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}
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#canvas-geometry {
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background-color: blue;
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background-image: paint(geometry);
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}
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</style>
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<script src="/common/reftest-wait.js"></script>
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<script src="/common/worklet-reftest.js"></script>
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<body>
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<div id="canvas-geometry" class="container"></div>
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<script id="code" type="text/worklet">
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registerPaint('geometry', class {
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static get inputProperties() { return ['--foo']; }
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paint(ctx, geom, properties) {
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let fooValue = parseFloat(properties.get('--foo').toString());
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ctx.fillStyle = 'green';
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ctx.fillRect(0, 0, fooValue, fooValue);
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}
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});
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</script>
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<script>
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CSS.registerProperty({
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name: '--foo',
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syntax: '<number>',
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initialValue: '0',
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inherits: false
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});
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</script>
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<script>
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// The test is designed to make sure that when the custom property animation is
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// running on the compositor thread, we are getting the right value.
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// The "importWorkletAndTerminateTestAfterAsyncPaint" has the logic to rAF
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// two frames before taking a screenshot. So the animation is designed to
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// be stable after two frames. That is, the 0.01% of 5s is much less than
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// two frames, and thus after two frames, the value of --foo should be stable.
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importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent);
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</script>
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</body>
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</html>
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