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<!DOCTYPE HTML>
<title>Canvas test: mozGetAsFile</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<body>
<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<script>

function compareAsync(file, canvas, type, callback)
{
  var reader = new FileReader();
  reader.onload = 
    function(e) {
      is(e.target.result, canvas.toDataURL(type),
 "<canvas>.mozGetAsFile().getAsDataURL() should equal <canvas>.toDataURL()");
      callback(canvas);
    };
  reader.readAsDataURL(file);
}

function test1(canvas)
{
  var pngfile = canvas.mozGetAsFile("foo.png");
  is(pngfile.type, "image/png", "Default type for mozGetAsFile should be PNG");
  compareAsync(pngfile, canvas, "image/png", test2);
  is(pngfile.name, "foo.png", "File name should be what we passed in");
}

function test2(canvas)
{
  var jpegfile = canvas.mozGetAsFile("bar.jpg", "image/jpeg");
  is(jpegfile.type, "image/jpeg",
     "When a valid type is specified that should be returned");
  compareAsync(jpegfile, canvas, "image/jpeg", parent.SimpleTest.finish);
  is(jpegfile.name, "bar.jpg", "File name should be what we passed in");
}

SimpleTest.waitForExplicitFinish();
addLoadEvent(async function () {
  if (location.search == "?framed") {
    is = parent.is;

    var canvas = document.getElementById('c');
    var ctx = canvas.getContext('2d');
    ctx.drawImage(document.getElementById('yellow75.png'), 0, 0);

    test1(canvas);
  } else {
    await SpecialPowers.pushPrefEnv({
      set: [
        ["canvas.mozgetasfile.enabled", true],
      ],
    });
    let iframe = document.querySelector("iframe");
    iframe.src = "test_mozGetAsFile.html?framed";
  }
});
</script>
<img src="image_yellow75.png" id="yellow75.png" class="resource">
<iframe></iframe>