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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Test for Bug 919437</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=919437">Mozilla Bug 919437</a>
<div id="content" style="display: none"></div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 919437 **/
SimpleTest.waitForExplicitFinish();
function run()
{
var oldWidth = window.innerWidth;
var oldHeight = window.innerHeight;
var newWidth = oldWidth / 2;
var newHeight = oldHeight / 2;
var utils = SpecialPowers.getDOMWindowUtils(window);
utils.setScrollPositionClampingScrollPortSize(newWidth, newHeight);
is(window.innerWidth, newWidth, "innerWidth not updated to scroll port width");
is(window.innerHeight, newHeight, "innerHeight not updated to scroll port height");
var innerWidthGetter = Object.getOwnPropertyDescriptor(window, "innerWidth").get;
var innerHeightGetter = Object.getOwnPropertyDescriptor(window, "innerHeight").get;
window.innerWidth = oldWidth;
window.innerHeight = oldHeight;
is(window.innerWidth, oldWidth, "Should have redefined innerWidth");
is(window.innerHeight, oldHeight, "Should have redefined innerWidth");
is(innerWidthGetter.call(window), newWidth, "innerWidth clobbered by direct set");
is(innerHeightGetter.call(window), newHeight, "innerHeight clobbered by direct set");
SimpleTest.finish();
}
window.addEventListener("load", run, false);
</script>
</pre>
</body>
</html>
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