content/canvas/test/test_toBlob.html

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/content/canvas/test/test_toBlob.html	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,47 @@
     1.4 +<!DOCTYPE HTML>
     1.5 +<title>Canvas test: toBlob</title>
     1.6 +<script src="/tests/SimpleTest/SimpleTest.js"></script>
     1.7 +<link rel="stylesheet" href="/tests/SimpleTest/test.css">
     1.8 +<body>
     1.9 +<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
    1.10 +<script>
    1.11 +
    1.12 +function BlobListener(type, canvas, callback, file)
    1.13 +{
    1.14 +  is(file.type, type,
    1.15 +     "When a valid type is specified that should be returned");
    1.16 +  var reader = new FileReader();
    1.17 +  reader.onload =
    1.18 +    function(e) {
    1.19 +      is(e.target.result, canvas.toDataURL(type),
    1.20 +  "<canvas>.mozGetAsFile().getAsDataURL() should equal <canvas>.toDataURL()");
    1.21 +      callback(canvas);
    1.22 +    };
    1.23 +  reader.readAsDataURL(file);
    1.24 +}
    1.25 +
    1.26 +function test1(canvas)
    1.27 +{
    1.28 +  canvas.toBlob(BlobListener.bind(undefined, "image/png", canvas, test2));
    1.29 +}
    1.30 +
    1.31 +function test2(canvas)
    1.32 +{
    1.33 +  canvas.toBlob(
    1.34 +    BlobListener.bind(undefined, "image/jpeg", canvas, SimpleTest.finish),
    1.35 +    "image/jpeg");
    1.36 +}
    1.37 +
    1.38 +SimpleTest.waitForExplicitFinish();
    1.39 +addLoadEvent(function () {
    1.40 +
    1.41 +var canvas = document.getElementById('c');
    1.42 +var ctx = canvas.getContext('2d');
    1.43 +ctx.drawImage(document.getElementById('yellow75.png'), 0, 0);
    1.44 +
    1.45 +test1(canvas);
    1.46 +
    1.47 +});
    1.48 +</script>
    1.49 +<img src="image_yellow75.png" id="yellow75.png" class="resource">
    1.50 +

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