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<!DOCTYPE HTML>
<html>
<head>
<title>Test that scrolling a windowless plugin doesn't force us to repaint it</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="plugin-utils.js"></script>
<script type="text/javascript">
setTestPluginEnabledState(SpecialPowers.Ci.nsIPluginTag.STATE_ENABLED);
</script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body onload="runTest()">
<p id="display"></p>
<embed id="plugin" type="application/x-test" style="width:50px; height:10px; margin-top:20px;"></embed>
</div>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
<script type="application/javascript">
SimpleTest.waitForExplicitFinish();
var container = document.documentElement;
container.scrollTop = 0;
var plugin = document.getElementById("plugin");
var pluginTop;
var beforeScrollPaintCount;
function waitForScroll() {
if (plugin.getEdge(1) >= pluginTop) {
setTimeout(waitForScroll, 0);
return;
}
is(plugin.getPaintCount(), beforeScrollPaintCount, "plugin should not paint due to scrolling");
SimpleTest.finish();
}
function waitForInitialScroll() {
if (plugin.getEdge(1) >= pluginTop) {
setTimeout(waitForInitialScroll, 0);
return;
}
pluginTop = plugin.getEdge(1);
beforeScrollPaintCount = plugin.getPaintCount();
container.scrollTop = 20;
waitForScroll();
}
function runTest() {
document.body.offsetTop;
pluginTop = plugin.getEdge(1);
container.scrollTop = 10;
waitForInitialScroll();
}
</script>
<div style="height:4000px;"></div>
</body>
</html>
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