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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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