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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for Bug 421640</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.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=421640">Mozilla Bug 421640</a>
<div id="content">
<div id="edit" contenteditable="true">This text is editable</div>
<div><button id="button">Test</button></div>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 421640 **/
function test(click, focus, nextFocus) {
var wu = SpecialPowers.getDOMWindowUtils(window);
var selection = window.getSelection();
var edit = document.getElementById("edit");
var text = edit.firstChild;
selection.removeAllRanges();
var rect = edit.getBoundingClientRect();
wu.sendMouseEvent("mousedown", rect.left + 1, rect.top + 1, 0, 1, 0);
wu.sendMouseEvent("mousemove", rect.right - 1, rect.top + 1, 0, 1, 0);
wu.sendMouseEvent("mouseup", rect.right - 1, rect.top + 1, 0, 1, 0);
is(selection.anchorNode, text, "");
rect = document.getElementById("button").getBoundingClientRect();
wu.sendMouseEvent("mousedown", rect.left + 10, rect.top + 1, 0, 1, 0);
wu.sendMouseEvent("mouseup", rect.left + 10, rect.top + 1, 0, 1, 0);
is(selection.anchorNode, text, "");
SimpleTest.finish();
}
window.onload = function() {
SimpleTest.waitForExplicitFinish();
setTimeout(test, 0);
};
</script>
</pre>
</body>
</html>