2d.gradient.radial.transform.translated.repeat.w.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.radial.transform.translated.repeat.w.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->

<meta charset="UTF-8">

<html class="reftest-wait">

<link rel="match" href="2d.gradient.radial.transform.translated.repeat-expected.html">

<script src="/common/reftest-wait.js"></script>

<title>Canvas test: 2d.gradient.radial.transform.translated.repeat</title>

<h1>2d.gradient.radial.transform.translated.repeat</h1>

<p class="desc">Filling with the same radial gradient under different translations draws each gradient at its own position</p>

<canvas id="canvas" width="300" height="300">

  <p class="fallback">FAIL (fallback content)</p>

</canvas>

<script id='myWorker' type='text/worker'>

  self.onmessage = function(e) {

    try {

      const canvas = new OffscreenCanvas(300, 300);

      const ctx = canvas.getContext('2d');

      for (let i = 0; i < 3; i++) {

        ctx.save();

        ctx.translate(20 + i * 90, 50);

        ctx.beginPath();

        ctx.rect(0, 0, 80, 80);

        ctx.clip();

        const g = ctx.createRadialGradient(30, 30, 0, 40, 40, 40);

        g.addColorStop(0, 'rgb(180, 180, 230)');

        g.addColorStop(1, 'rgb(40, 40, 110)');

        ctx.fillStyle = g;

        ctx.fillRect(-20 - i * 90, -50, 300, 300);

        ctx.restore();

      const bitmap = canvas.transferToImageBitmap();

      self.postMessage({ type: 'bitmap', bitmap }, [bitmap]);

    } catch (error) {

      self.postMessage({ type: 'error', message: error });

};

</script>

<script>

  const blob = new Blob([document.getElementById('myWorker').textContent]);

  const worker = new Worker(URL.createObjectURL(blob));

  worker.onerror = failOnError;

  worker.onmessage = reftestStep(msg => {

    if (msg.data.type === 'error') {

      failOnError(msg.data.message);

      return;

    const outputCtx = document.getElementById("canvas").getContext('2d');

    outputCtx.drawImage(msg.data.bitmap, 0, 0);

    takeScreenshot();

});

  worker.postMessage(null);

</script>

</html>