gecko/dom/tests/mochitest/dom-level0/innerWidthHeight_script.html

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HTML

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=320,height=320" />
<title>Bug 602580 - Test getting and setting innerWidth and Height after using setCSSViewport</title>
<script class="testbody" type="text/javascript">
function runSubTest()
{
// Firefox doesn't support the metaviewport tag on desktop, so we force
// css viewport here using nsIDomWindowUtils
var cwu = SpecialPowers.getDOMWindowUtils(window);
cwu.setCSSViewport(320, 320);
var oldWidth = window.innerWidth;
var oldHeight = window.innerHeight;
/* Test that return values are now from viewport */
window.opener.is(window.innerWidth, 320, "innerWidth is css viewport width");
window.opener.is(window.innerHeight, 320, "innerHeight is css viewport height");
window.innerWidth = 300;
window.opener.is(window.innerWidth, 300, "innerWidth returns value that was set");
window.innerWidth = oldWidth;
window.innerHeight = 300;
window.opener.is(window.innerHeight, 300, "innerHeight returns value that was set");
window.innerHeight = oldHeight;
window.opener.finish();
}
</script>
</head>
<body onload="runSubTest()">
</body>
</html>