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1 /*
2  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
3  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
4  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
5  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Library General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Library General Public License for more details.
16  *
17  * You should have received a copy of the GNU Library General Public License
18  * along with this library; see the file COPYING.LIB.  If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20  * Boston, MA 02110-1301, USA.
21  *
22  */
23 
24 #ifndef KeyboardEvent_h
25 #define KeyboardEvent_h
26 
27 #include "core/events/EventDispatchMediator.h"
28 #include "core/events/UIEventWithKeyState.h"
29 
30 namespace WebCore {
31 
32 class EventDispatcher;
33 class Node;
34 class PlatformKeyboardEvent;
35 
36 struct KeyboardEventInit : public UIEventInit {
37     KeyboardEventInit();
38 
39     String keyIdentifier;
40     unsigned location;
41     bool ctrlKey;
42     bool altKey;
43     bool shiftKey;
44     bool metaKey;
45     bool repeat;
46 };
47 
48 class KeyboardEvent : public UIEventWithKeyState {
49 public:
50     enum KeyLocationCode {
51         DOM_KEY_LOCATION_STANDARD   = 0x00,
52         DOM_KEY_LOCATION_LEFT       = 0x01,
53         DOM_KEY_LOCATION_RIGHT      = 0x02,
54         DOM_KEY_LOCATION_NUMPAD     = 0x03
55     };
56 
create()57     static PassRefPtr<KeyboardEvent> create()
58     {
59         return adoptRef(new KeyboardEvent);
60     }
61 
create(const PlatformKeyboardEvent & platformEvent,AbstractView * view)62     static PassRefPtr<KeyboardEvent> create(const PlatformKeyboardEvent& platformEvent, AbstractView* view)
63     {
64         return adoptRef(new KeyboardEvent(platformEvent, view));
65     }
66 
create(const AtomicString & type,const KeyboardEventInit & initializer)67     static PassRefPtr<KeyboardEvent> create(const AtomicString& type, const KeyboardEventInit& initializer)
68     {
69         return adoptRef(new KeyboardEvent(type, initializer));
70     }
71 
create(const AtomicString & type,bool canBubble,bool cancelable,AbstractView * view,const String & keyIdentifier,unsigned location,bool ctrlKey,bool altKey,bool shiftKey,bool metaKey,bool altGraphKey)72     static PassRefPtr<KeyboardEvent> create(const AtomicString& type, bool canBubble, bool cancelable, AbstractView* view,
73         const String& keyIdentifier, unsigned location,
74         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey)
75     {
76         return adoptRef(new KeyboardEvent(type, canBubble, cancelable, view, keyIdentifier, location,
77         ctrlKey, altKey, shiftKey, metaKey, altGraphKey));
78     }
79 
80     virtual ~KeyboardEvent();
81 
82     void initKeyboardEvent(const AtomicString& type, bool canBubble, bool cancelable, AbstractView*,
83         const String& keyIdentifier, unsigned location,
84         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey = false);
85 
keyIdentifier()86     const String& keyIdentifier() const { return m_keyIdentifier; }
location()87     unsigned location() const { return m_location; }
88 
89     bool getModifierState(const String& keyIdentifier) const;
90 
altGraphKey()91     bool altGraphKey() const { return m_altGraphKey; }
92 
keyEvent()93     const PlatformKeyboardEvent* keyEvent() const { return m_keyEvent.get(); }
94 
95     int keyCode() const; // key code for keydown and keyup, character for keypress
96     int charCode() const; // character code for keypress, 0 for keydown and keyup
repeat()97     bool repeat() const { return m_isAutoRepeat; }
98 
99     virtual const AtomicString& interfaceName() const;
100     virtual bool isKeyboardEvent() const;
101     virtual int which() const;
102 
103 private:
104     KeyboardEvent();
105     KeyboardEvent(const PlatformKeyboardEvent&, AbstractView*);
106     KeyboardEvent(const AtomicString&, const KeyboardEventInit&);
107     KeyboardEvent(const AtomicString& type, bool canBubble, bool cancelable, AbstractView*,
108         const String& keyIdentifier, unsigned location,
109         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey);
110 
111     OwnPtr<PlatformKeyboardEvent> m_keyEvent;
112     String m_keyIdentifier;
113     unsigned m_location;
114     bool m_altGraphKey : 1;
115     bool m_isAutoRepeat : 1;
116 };
117 
118 KeyboardEvent* findKeyboardEvent(Event*);
119 
120 class KeyboardEventDispatchMediator : public EventDispatchMediator {
121 public:
122     static PassRefPtr<KeyboardEventDispatchMediator> create(PassRefPtr<KeyboardEvent>);
123 private:
124     explicit KeyboardEventDispatchMediator(PassRefPtr<KeyboardEvent>);
125     virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
126 };
127 
128 DEFINE_EVENT_TYPE_CASTS(KeyboardEvent);
129 
130 } // namespace WebCore
131 
132 #endif // KeyboardEvent_h
133