| // 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. |
| |
| /// @assertion ElementStream<WheelEvent> get onWheel |
| /// Stream of wheel events handled by this Element. |
| /// @description Checks that correct events are delivered via the stream |
| |
| import "dart:html"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var type = 'wheel'; |
| var x = document.body; |
| if (x != null) { |
| asyncStart(); |
| x.onWheel.listen((e) { |
| Expect.equals(type, e.type); |
| asyncEnd(); |
| }); |
| |
| var event = new WheelEvent(type); |
| x.dispatchEvent(event); |
| } else { |
| Expect.fail("Body is null"); |
| } |
| } |