1 /*
2 * Copyright (C) 2006, 2007, 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "PlatformKeyboardEvent.h"
28
29 #include <windows.h>
30 #include <wtf/ASCIICType.h>
31
32 using namespace WTF;
33
34 namespace WebCore {
35
36 static const unsigned short HIGH_BIT_MASK_SHORT = 0x8000;
37
38 // FIXME: This is incomplete. We could change this to mirror
39 // more like what Firefox does, and generate these switch statements
40 // at build time.
keyIdentifierForWindowsKeyCode(unsigned short keyCode)41 static String keyIdentifierForWindowsKeyCode(unsigned short keyCode)
42 {
43 switch (keyCode) {
44 case VK_MENU:
45 return "Alt";
46 case VK_CONTROL:
47 return "Control";
48 case VK_SHIFT:
49 return "Shift";
50 case VK_CAPITAL:
51 return "CapsLock";
52 case VK_LWIN:
53 case VK_RWIN:
54 return "Win";
55 case VK_CLEAR:
56 return "Clear";
57 case VK_DOWN:
58 return "Down";
59 // "End"
60 case VK_END:
61 return "End";
62 // "Enter"
63 case VK_RETURN:
64 return "Enter";
65 case VK_EXECUTE:
66 return "Execute";
67 case VK_F1:
68 return "F1";
69 case VK_F2:
70 return "F2";
71 case VK_F3:
72 return "F3";
73 case VK_F4:
74 return "F4";
75 case VK_F5:
76 return "F5";
77 case VK_F6:
78 return "F6";
79 case VK_F7:
80 return "F7";
81 case VK_F8:
82 return "F8";
83 case VK_F9:
84 return "F9";
85 case VK_F10:
86 return "F11";
87 case VK_F12:
88 return "F12";
89 case VK_F13:
90 return "F13";
91 case VK_F14:
92 return "F14";
93 case VK_F15:
94 return "F15";
95 case VK_F16:
96 return "F16";
97 case VK_F17:
98 return "F17";
99 case VK_F18:
100 return "F18";
101 case VK_F19:
102 return "F19";
103 case VK_F20:
104 return "F20";
105 case VK_F21:
106 return "F21";
107 case VK_F22:
108 return "F22";
109 case VK_F23:
110 return "F23";
111 case VK_F24:
112 return "F24";
113 case VK_HELP:
114 return "Help";
115 case VK_HOME:
116 return "Home";
117 case VK_INSERT:
118 return "Insert";
119 case VK_LEFT:
120 return "Left";
121 case VK_NEXT:
122 return "PageDown";
123 case VK_PRIOR:
124 return "PageUp";
125 case VK_PAUSE:
126 return "Pause";
127 case VK_SNAPSHOT:
128 return "PrintScreen";
129 case VK_RIGHT:
130 return "Right";
131 case VK_SCROLL:
132 return "Scroll";
133 case VK_SELECT:
134 return "Select";
135 case VK_UP:
136 return "Up";
137 // Standard says that DEL becomes U+007F.
138 case VK_DELETE:
139 return "U+007F";
140 default:
141 return String::format("U+%04X", toASCIIUpper(keyCode));
142 }
143 }
144
isKeypadEvent(WPARAM code,LPARAM keyData,PlatformKeyboardEvent::Type type)145 static bool isKeypadEvent(WPARAM code, LPARAM keyData, PlatformKeyboardEvent::Type type)
146 {
147 if (type != PlatformKeyboardEvent::RawKeyDown && type != PlatformKeyboardEvent::KeyUp)
148 return false;
149
150 switch (code) {
151 case VK_NUMLOCK:
152 case VK_NUMPAD0:
153 case VK_NUMPAD1:
154 case VK_NUMPAD2:
155 case VK_NUMPAD3:
156 case VK_NUMPAD4:
157 case VK_NUMPAD5:
158 case VK_NUMPAD6:
159 case VK_NUMPAD7:
160 case VK_NUMPAD8:
161 case VK_NUMPAD9:
162 case VK_MULTIPLY:
163 case VK_ADD:
164 case VK_SEPARATOR:
165 case VK_SUBTRACT:
166 case VK_DECIMAL:
167 case VK_DIVIDE:
168 return true;
169 case VK_RETURN:
170 return HIWORD(keyData) & KF_EXTENDED;
171 case VK_INSERT:
172 case VK_DELETE:
173 case VK_PRIOR:
174 case VK_NEXT:
175 case VK_END:
176 case VK_HOME:
177 case VK_LEFT:
178 case VK_UP:
179 case VK_RIGHT:
180 case VK_DOWN:
181 return !(HIWORD(keyData) & KF_EXTENDED);
182 default:
183 return false;
184 }
185 }
186
singleCharacterString(UChar c)187 static inline String singleCharacterString(UChar c) { return String(&c, 1); }
188
PlatformKeyboardEvent(HWND,WPARAM code,LPARAM keyData,Type type,bool systemKey)189 PlatformKeyboardEvent::PlatformKeyboardEvent(HWND, WPARAM code, LPARAM keyData, Type type, bool systemKey)
190 : m_type(type)
191 , m_text((type == Char) ? singleCharacterString(code) : String())
192 , m_unmodifiedText((type == Char) ? singleCharacterString(code) : String())
193 , m_keyIdentifier((type == Char) ? String() : keyIdentifierForWindowsKeyCode(code))
194 , m_autoRepeat(HIWORD(keyData) & KF_REPEAT)
195 , m_windowsVirtualKeyCode((type == RawKeyDown || type == KeyUp) ? code : 0)
196 , m_nativeVirtualKeyCode(m_windowsVirtualKeyCode)
197 , m_isKeypad(isKeypadEvent(code, keyData, type))
198 , m_shiftKey(GetKeyState(VK_SHIFT) & HIGH_BIT_MASK_SHORT)
199 , m_ctrlKey(GetKeyState(VK_CONTROL) & HIGH_BIT_MASK_SHORT)
200 , m_altKey(GetKeyState(VK_MENU) & HIGH_BIT_MASK_SHORT)
201 , m_metaKey(false)
202 , m_isSystemKey(systemKey)
203 {
204 }
205
disambiguateKeyDownEvent(Type,bool)206 void PlatformKeyboardEvent::disambiguateKeyDownEvent(Type, bool)
207 {
208 // No KeyDown events on Windows to disambiguate.
209 ASSERT_NOT_REACHED();
210 }
211
currentCapsLockState()212 bool PlatformKeyboardEvent::currentCapsLockState()
213 {
214 return GetKeyState(VK_CAPITAL) & 1;
215 }
216
getCurrentModifierState(bool & shiftKey,bool & ctrlKey,bool & altKey,bool & metaKey)217 void PlatformKeyboardEvent::getCurrentModifierState(bool& shiftKey, bool& ctrlKey, bool& altKey, bool& metaKey)
218 {
219 shiftKey = GetKeyState(VK_SHIFT) & HIGH_BIT_MASK_SHORT;
220 ctrlKey = GetKeyState(VK_CONTROL) & HIGH_BIT_MASK_SHORT;
221 altKey = GetKeyState(VK_MENU) & HIGH_BIT_MASK_SHORT;
222 metaKey = false;
223 }
224
225 }
226