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1 <!DOCTYPE HTML> |
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2 <html> |
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3 <!-- |
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4 https://bugzilla.mozilla.org/show_bug.cgi?id=656954 |
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5 --> |
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6 <head> |
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7 <title>Test for Bug 656954</title> |
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8 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> |
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9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> |
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10 </head> |
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11 <body> |
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12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=656954">Mozilla Bug 656954</a> |
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13 <p id="display"></p> |
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14 <div id="content" style="display: none"> |
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15 |
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16 </div> |
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17 <pre id="test"> |
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18 <script type="application/javascript"> |
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19 |
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20 /** Test for Bug 656954 **/ |
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21 |
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22 var e = document.createEvent("Event"); |
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23 is(e.defaultPrevented, false, |
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24 "After creating event defaultPrevented should be false"); |
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25 e.initEvent("foo", true, true); |
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26 var el = document.createElement("div"); |
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27 el.addEventListener("foo", |
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28 function(evt) { |
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29 evt.preventDefault(); |
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30 }, false); |
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31 el.dispatchEvent(e); |
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32 is(e.defaultPrevented, true, "preventDefault() should have been called!"); |
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33 |
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34 e = document.createEvent("Event"); |
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35 e.initEvent("foo", true, false); |
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36 el.dispatchEvent(e); |
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37 is(e.defaultPrevented, false, "preventDefault() should not have any effect!"); |
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38 |
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39 </script> |
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40 </pre> |
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41 </body> |
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42 </html> |