зеркало из https://github.com/mozilla/gecko-dev.git
48 строки
1.2 KiB
HTML
48 строки
1.2 KiB
HTML
<!DOCTYPE HTML>
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<title>Canvas test: toBlob</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<body>
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<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
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<script>
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function BlobListener(type, canvas, callback, file)
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{
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is(file.type, type,
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"When a valid type is specified that should be returned");
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var reader = new FileReader();
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reader.onload =
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function(e) {
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is(e.target.result, canvas.toDataURL(type),
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"<canvas>.mozGetAsFile().getAsDataURL() should equal <canvas>.toDataURL()");
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callback(canvas);
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};
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reader.readAsDataURL(file);
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}
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function test1(canvas)
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{
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canvas.toBlob(BlobListener.bind(undefined, "image/png", canvas, test2));
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}
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function test2(canvas)
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{
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canvas.toBlob(
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BlobListener.bind(undefined, "image/jpeg", canvas, SimpleTest.finish),
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"image/jpeg");
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(function () {
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var canvas = document.getElementById('c');
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var ctx = canvas.getContext('2d');
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ctx.drawImage(document.getElementById('yellow75.png'), 0, 0);
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test1(canvas);
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});
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</script>
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<img src="image_yellow75.png" id="yellow75.png" class="resource">
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