1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/base/tests/test_bug518777.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,48 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=518777
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 518777</title>
1.11 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.13 +
1.14 + <script>
1.15 + SimpleTest.waitForExplicitFinish();
1.16 +
1.17 + function dotest() {
1.18 + var canvasWidth = 50;
1.19 + var canvasHeight = 50;
1.20 + var source = document.getElementById("source").contentWindow;
1.21 + rect = { left: 25, top: 25,
1.22 + width: canvasWidth, height: canvasHeight };
1.23 + var canvas = SpecialPowers.snapshotRect(source, rect, "transparent");
1.24 + var context = canvas.getContext("2d");
1.25 +
1.26 + var data = context.getImageData(0, 0, canvasWidth, canvasHeight).data;
1.27 + var i;
1.28 + for (i = 0; i < data.length; i += 4) {
1.29 + if (data[i] != 0 || data[i + 1] != 0 || data[i + 2] != 255 || data[i + 3] != 255)
1.30 + break;
1.31 + }
1.32 + ok(i >= data.length, "all pixels blue");
1.33 +
1.34 + SimpleTest.finish();
1.35 + }
1.36 + </script>
1.37 +</head>
1.38 +<body>
1.39 +<p><a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=518777">Mozilla Bug 518777</a></p>
1.40 +
1.41 +<!--
1.42 +iframe source is
1.43 +<html><body onload='window.scrollTo(0,99999999); document.documentElement.offsetWidth; window.parent.dotest();' style='background: rgb(0,0,255); width: 100px; height: 50100px;'></body></html>
1.44 +-->
1.45 +<iframe id="source" width="50" height="50"
1.46 + src="data:text/html,%3Chtml%3E%3Cbody%20onload%3D%27window.scrollTo%280%2C99999999%29%3B%20document.documentElement.offsetWidth%3B%20window.parent.dotest%28%29%3B%27%20style%3D%27background%3A%20rgb%280%2C0%2C255%29%3B%20width%3A%20100px%3B%20height%3A%2050100px%3B%27%3E%3C%2Fbody%3E%3C%2Fhtml%3E"></iframe>
1.47 +
1.48 +<pre id="test">
1.49 +</pre>
1.50 +</body>
1.51 +</html>
