pixel_paintWorklet_transform.html | Explore in Territory

<!DOCTYPE HTML>

<html>
<head>
<meta name="viewport" content="initial-scale=1">
<title>PaintWorklet with basic draw and transform operations</title>
<style type="text/css">
.nomargin {
  margin: 0px auto;
  width:300px;
  height:300px;
  background-image:paint(basic);
}
</style>

<script id="code" type="text/worklet">
registerPaint('basic', class {
    paint(ctx, geom) {
        ctx.fillStyle = 'green';
        ctx.transform(1, 0.5, 0, 1, 20, 20);
        ctx.fillRect(0, 0, 50, 50);

        ctx.resetTransform();

        ctx.fillStyle = 'blue';
        ctx.translate(150, 60);
        ctx.rotate(60 * Math.PI / 180);
        ctx.scale(1.5, 1);
        ctx.fillRect(0, 0, 50, 50);
    }
});
</script>

<script>
var g_swapsBeforeAck = 15;

function main()
{
  var code = document.getElementById('code').textContent;
  var blob = new Blob([code], {type: 'text/javascript'});
  CSS.paintWorklet.addModule(URL.createObjectURL(blob)).then(function() {
  });
  waitForFinish();
}

function waitForFinish()
{
  // This tests need paint worklet implemented.
  if (g_swapsBeforeAck == 0 || typeof CSS.paintWorklet === 'undefined') {
    domAutomationController.send("SUCCESS");
  } else {
    g_swapsBeforeAck--;
    document.getElementById('container').style.zIndex = g_swapsBeforeAck + 1;
    window.requestAnimationFrame(waitForFinish);
  }
}
</script>
</head>
<body onload="main()">
<div style="position:relative; width:300px; height:300px; background-color:white">
</div>
<div id="container" style="position:absolute; top:0px; left:0px">
  <div id="target" class="nomargin"></div>
</div>
</body>
</html>
chromium/content/test/data/gpu/pixel_paintWorklet_transform.html
