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40 lines
1.2 KiB
HTML
40 lines
1.2 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="device-pixel-ratio-ref.html">
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<style>
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html, body { margin: 0; padding: 0; }
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.container {
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width: 150px;
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height: 150px;
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}
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#canvas-geometry {
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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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<p>This test ensures that the PaintWorkletGlobalScope.devicePixelRatio returns
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the correct value, which should be identical as window.devicePixelRatio. To
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manually test, open both this file and "device-pixel-ratio-ref.html" with a
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browser, and you should see two idential green rectangles.</p>
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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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paint(ctx, geom) {
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ctx.fillStyle = 'green';
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var draw_width = Math.floor(geom.width / devicePixelRatio);
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var draw_height = Math.floor(geom.height / devicePixelRatio);
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ctx.fillRect(0, 0, draw_width, draw_height);
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}
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});
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</script>
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<script>
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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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