summaryrefslogtreecommitdiffstats
path: root/dom/events/test/test_bug656954.html
blob: c4fd29e04eb21f35d22dba8e7834b8bcac1d127b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=656954
-->
<head>
  <title>Test for Bug 656954</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=656954">Mozilla Bug 656954</a>
<p id="display"></p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 656954 **/

var e = document.createEvent("Event");
is(e.defaultPrevented, false,
   "After creating event defaultPrevented should be false");
e.initEvent("foo", true, true);
var el = document.createElement("div");
el.addEventListener("foo", 
  function(evt) {
    evt.preventDefault();
  }, false);
el.dispatchEvent(e);
is(e.defaultPrevented, true, "preventDefault() should have been called!");

e = document.createEvent("Event");
e.initEvent("foo", true, false);
el.dispatchEvent(e);
is(e.defaultPrevented, false, "preventDefault() should not have any effect!");

</script>
</pre>
</body>
</html>