зеркало из https://github.com/mozilla/pjs.git
56 строки
1.6 KiB
HTML
56 строки
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=469170
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-->
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<head>
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<title>Test for Bug 469170</title>
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<script type="application/javascript" src="/MochiKit/packed.js"></script>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body onload="runTest();">
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<p><a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=469170">Mozilla Bug 469170</a></p>
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<iframe id="source" width="50" height="50"
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src="data:text/html,%3Chtml%3E%3C%2Fhtml%3E"></iframe>
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<canvas id="scratch" width="50" height="50"></canvas>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 469170 **/
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SimpleTest.waitForExplicitFinish();
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function runTest() {
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netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
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var canvas = document.getElementById('scratch');
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var source = document.getElementById('source').contentWindow;
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var context = canvas.getContext("2d");
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context.clearRect(0, 0, canvas.width, canvas.height);
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context.drawWindow(source, 0, 0, source.innerWidth, source.innerHeight,
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"transparent");
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var components = [ "red", "green", "blue", "alpha" ];
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var data = context.getImageData(0, 0, canvas.width, canvas.height).data;
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var failed = false;
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for (var i = 0; i < data.length; i++) {
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if (data[i] != 0) {
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is(data[i], 0, "pixel " + Math.floor(i/4) + " " + components[i%4]);
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failed = true;
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}
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}
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if (!failed) {
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ok(!failed, "all pixels fully transparent");
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}
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SimpleTest.finish();
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}
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</script>
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</pre>
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</body>
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</html>
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