| /* |
| * Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /* |
| * Portions of this test are derived from code under the following license: |
| * |
| * Web-platform-tests are covered by the dual-licensing approach described in: |
| * http://www.w3.org/Consortium/Legal/2008/04-testsuite-copyright.html |
| */ |
| /* |
| * after web-platform-tests/DOMEvents/tests/approved/dispatchEvent.return.value.html |
| * |
| * @assertion return value and Event.preventDefault() |
| * @description dispatchEvent() return value indicates whether any of the listeners |
| * which handled the event called "Event.preventDefault(). |
| * If Event.preventDefault() was called the returned value must be false, |
| * else it must be true. |
| */ |
| |
| import 'dart:html'; |
| import "../../Utils/expectWeb.dart"; |
| |
| const String htmlEL=''' |
| <table id="table" border="1"> |
| <tbody id="table-body"> |
| <tr id="table-row"> |
| <td id="table-cell">Shady Grove</td> |
| <td>Aeolian</td> |
| </tr> |
| <tr id="parent"> |
| <td id="target">Over the river, Charlie</td> |
| <td>Dorian</td> |
| </tr> |
| </tbody> |
| </table> |
| '''; |
| |
| void main() { |
| Element el = new Element.html(htmlEL); |
| document.body.append(el); |
| var EVENT = "foo"; |
| var TARGET = document.getElementById("target"); |
| var PARENT = document.getElementById("parent"); |
| var DefaultPrevented = false; |
| |
| void TestEvent(evt, i) { |
| if (1 == i) { |
| evt.preventDefault(); |
| DefaultPrevented = evt.defaultPrevented; |
| } |
| } |
| |
| PARENT.addEventListener(EVENT, (e){TestEvent(e, 0);}, true); |
| TARGET.addEventListener(EVENT, (e){TestEvent(e, 1);}, true); |
| TARGET.addEventListener(EVENT, (e){TestEvent(e, 2);}, true); |
| |
| Event evt = new Event(EVENT, canBubble:true, cancelable:true); |
| |
| var ReturnValue1 = PARENT.dispatchEvent(evt); |
| var ReturnValue2 = TARGET.dispatchEvent(evt); |
| |
| assert_array_equals([DefaultPrevented, ReturnValue1, ReturnValue2], [true, true, false]); |
| } |