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| 1 <!DOCTYPE html> |
| 2 <meta charset=utf-8> |
| 3 <title>EventTarget.dispatchEvent: return value</title> |
| 4 <link rel="help" href="https://dom.spec.whatwg.org/#concept-event-dispatch"> |
| 5 <link rel="help" href="https://dom.spec.whatwg.org/#dom-event-preventdefault"> |
| 6 <link rel="help" href="https://dom.spec.whatwg.org/#dom-event-defaultprevented"> |
| 7 <script src="../../../../resources/testharness.js"></script> |
| 8 <script src="../../../../resources/testharnessreport.js"></script> |
| 9 <div id=log></div> |
| 10 <table id="table" border="1" style="display: none"> |
| 11 <tbody id="table-body"> |
| 12 <tr id="table-row"> |
| 13 <td id="table-cell">Shady Grove</td> |
| 14 <td>Aeolian</td> |
| 15 </tr> |
| 16 <tr id="parent"> |
| 17 <td id="target">Over the river, Charlie</td> |
| 18 <td>Dorian</td> |
| 19 </tr> |
| 20 </tbody> |
| 21 </table> |
| 22 <script> |
| 23 test(function() { |
| 24 var event_type = "foo"; |
| 25 var target = document.getElementById("target"); |
| 26 var parent = document.getElementById("parent"); |
| 27 var default_prevented; |
| 28 |
| 29 parent.addEventListener(event_type, function(e) {}, true); |
| 30 target.addEventListener(event_type, function(e) { |
| 31 evt.preventDefault(); |
| 32 default_prevented = evt.defaultPrevented; |
| 33 }, true); |
| 34 target.addEventListener(event_type, function(e) {}, true); |
| 35 |
| 36 var evt = document.createEvent("Event"); |
| 37 evt.initEvent(event_type, true, true); |
| 38 |
| 39 assert_true(parent.dispatchEvent(evt)); |
| 40 assert_false(target.dispatchEvent(evt)); |
| 41 assert_true(default_prevented); |
| 42 }, "Return value of EventTarget.dispatchEvent."); |
| 43 </script> |
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