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<!DOCTYPE HTML>
<title>Canvas test: toBlob</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 BlobListener(type, canvas, callback, file)
{
is(file.type, type,
"When a valid type is specified that should be returned");
var reader = new FileReader();
reader.onload =
function(e) {
is(e.target.result, canvas.toDataURL(type),
"<canvas>.toBlob() should equal <canvas>.toDataURL()");
callback(canvas);
};
reader.readAsDataURL(file);
}
function test1(canvas)
{
canvas.toBlob(BlobListener.bind(undefined, "image/png", canvas, test2));
}
function test2(canvas)
{
canvas.toBlob(
BlobListener.bind(undefined, "image/jpeg", canvas, SimpleTest.finish),
"image/jpeg");
}
SimpleTest.waitForExplicitFinish();
addLoadEvent(function () {
var canvas = document.getElementById('c');
var ctx = canvas.getContext('2d');
ctx.drawImage(document.getElementById('yellow75.png'), 0, 0);
test1(canvas);
});
</script>
<img src="image_yellow75.png" id="yellow75.png" class="resource">
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