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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 class _EventsImpl implements Events { | |
| 6 /* Raw event target. */ | |
| 7 // TODO(jacobr): it would be nice if we could specify this as | |
| 8 // _EventTargetImpl or EventTarget | |
| 9 final var _ptr; | |
| 10 | |
| 11 _EventsImpl(this._ptr); | |
| 12 | |
| 13 _EventListenerListImpl operator [](String type) => _get(type.toLowerCase()); | |
| 14 | |
| 15 _EventListenerListImpl _get(String type) { | |
| 16 return new _EventListenerListImpl(_ptr, type); | |
| 17 } | |
| 18 } | |
| 19 | |
| 20 class _EventListenerListImpl implements EventListenerList { | |
| 21 | |
| 22 // TODO(jacobr): make this _EventTargetImpl | |
| 23 final var _ptr; | |
| 24 final String _type; | |
| 25 | |
| 26 _EventListenerListImpl(this._ptr, this._type); | |
| 27 | |
| 28 // TODO(jacobr): implement equals. | |
| 29 | |
| 30 _EventListenerListImpl add(EventListener listener, | |
| 31 [bool useCapture = false]) { | |
| 32 _add(listener, useCapture); | |
| 33 return this; | |
| 34 } | |
| 35 | |
| 36 _EventListenerListImpl remove(EventListener listener, | |
| 37 [bool useCapture = false]) { | |
| 38 _remove(listener, useCapture); | |
| 39 return this; | |
| 40 } | |
| 41 | |
| 42 bool dispatch(Event evt) { | |
| 43 // TODO(jacobr): what is the correct behavior here. We could alternately | |
| 44 // force the event to have the expected type. | |
| 45 assert(evt.type == _type); | |
| 46 return _ptr._dispatchEvent(evt); | |
| 47 } | |
| 48 | |
| 49 void _add(EventListener listener, bool useCapture) { | |
| 50 _ptr._addEventListener(_type, listener, useCapture); | |
| 51 } | |
| 52 | |
| 53 void _remove(EventListener listener, bool useCapture) { | |
| 54 _ptr._removeEventListener(_type, listener, useCapture); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 | |
| 59 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC { | |
| 60 | |
| 61 Events get on() => new _EventsImpl(this); | |
| 62 $!MEMBERS | |
| 63 } | |
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