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<!DOCTYPE html>
<html class="reftest-wait">
<title>Registering a property causes invalidation for applied value</title>
<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
<link rel="match" href="parse-input-arguments-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/worklet-reftest.js"></script>
<body>
<style>
#target {
background: paint(geometry);
width: 100px;
height: 100px;
--length: 100px;
}
</style>
<div id="target"></div>
<script id="code" type="text/worklet">
registerPaint('geometry', class {
static get inputProperties() { return ['--length']; }
paint(ctx, geom, styleMap) {
let value = styleMap.get('--length');
let pass = value.value === 100 && value.unit === 'px';
ctx.fillStyle = pass ? 'green' : 'red';
ctx.fillRect(0, 0, geom.width, geom.height);
}
});
</script>
<script>
async function test() {
getComputedStyle(target);
let code = document.getElementById('code').textContent;
await importWorklet(CSS.paintWorklet, code);
await workletPainted();
CSS.registerProperty({
name: '--length',
syntax: '<length>',
initialValue: '0px',
inherits: false
});
await workletPainted();
takeScreenshot();
}
test();
</script>
</body>
</html>
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