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<!DOCTYPE html>
<html>
<head>
<title> W3C DOM Level 3 Event Object Property: defaultPrevented </title>
<script type="text/javascript">
var PassTest = function()
{
document.getElementById("testresult").firstChild.data = "PASS";
}
var FailTest = function()
{
document.getElementById("testresult").firstChild.data = "FAIL";
}
var EVENT = "click";
var TARGET;
window.onload = function()
{
try
{
TARGET = document.getElementById("target");
TARGET.addEventListener(EVENT, TestCapture, true);
}
catch(ex)
{
FailTest();
}
}
function TestCapture(evt)
{
try
{
evt.preventDefault();
if ((evt.type == EVENT) && (evt.defaultPrevented == true))
{
PassTest();
}
else
{
FailTest();
}
}
catch(ex)
{
FailTest();
}
}
</script>
</head>
<body>
<h4>
Test Description:
Event listeners can cancel default actions of cancelable event objects by invoking the Event.preventDefault()
method, and determine whether an event has been canceled through the Event.defaultPrevented attribute.
</h4>
Click the hyperlink:
<a href="http://samples.msdn.microsoft.com/ietestcenter/" id="target">http://samples.msdn.microsoft.com/ietestcenter</a>
<p>Test passes if the word "PASS" appears below after clicking the hyperlink and the page does not navigate away.</p>
<div>Test result: </div>
<div id='testresult'>FAIL</div>
</body>
</html>
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