File: registered-property-invalidation-001.https.html

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<!DOCTYPE html>
<html class="reftest-wait">
<title>Registering a property causes invalidation for initial 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;
}
</style>
<div id="target"></div>
<script id="code" type="text/worklet">
registerPaint('geometry', class {
  static get inputProperties() { return ['--color']; }
  paint(ctx, geom, styleMap) {
    ctx.fillStyle = styleMap.get('--color').toString();
    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: '--color',
      syntax: '<color>',
      initialValue: 'green',
      inherits: false
    });
    await workletPainted();
    takeScreenshot();
  }

  test();
</script>
</body>
</html>