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path: root/testing/web-platform/tests/html/canvas/tools/templates/reftest_worker.html
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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<html class="reftest-wait">
<link rel="match" href="{{ name }}-expected.html">
{% if fuzzy %}<meta name=fuzzy content="{{ fuzzy }}">
{% endif %}
{% if timeout %}<meta name="timeout" content="{{ timeout }}">
{% endif %}
<title>Canvas test: {{ name }}</title>
<h1>{{ name }}</h1>
<p class="desc">{{ desc }}</p>
{% if notes %}<p class="notes">{{ notes }}{% endif %}
<canvas id="canvas" width="{{ size[0] }}" height="{{ size[1] }}"{{ canvas }}>
  <p class="fallback">FAIL (fallback content)</p>
</canvas>
<script id='myWorker' type='text/worker'>
  self.onmessage = {% if test_type == 'promise' %}async {% endif %}function(e) {
    const canvas = new OffscreenCanvas({{ size[0] }}, {{ size[1] }});
    const ctx = canvas.getContext('2d'{% if attributes %}, {{ attributes }}{% endif %});

    {{ code | trim | indent(4) }}

    const bitmap = canvas.transferToImageBitmap();
    self.postMessage(bitmap, bitmap);
  };
</script>
<script>
  const blob = new Blob([document.getElementById('myWorker').textContent]);
  const worker = new Worker(URL.createObjectURL(blob));
  worker.addEventListener('message', msg => {
    const outputCtx = document.getElementById("canvas").getContext('2d'{% if attributes %}, {{ attributes }}{% endif %});
    outputCtx.drawImage(msg.data, 0, 0);
    document.documentElement.classList.remove("reftest-wait");
  });
  worker.postMessage(null);
</script>
</html>