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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/events/keycodes/keyboard_code_conversion.h" | 5 #include "ui/events/keycodes/keyboard_code_conversion.h" |
6 | 6 |
7 #include "ui/events/event_constants.h" | 7 #include "ui/events/event_constants.h" |
8 #include "ui/events/keycodes/dom3/dom_key.h" | |
8 | 9 |
9 namespace ui { | 10 namespace ui { |
10 | 11 |
11 uint16 GetCharacterFromKeyCode(KeyboardCode key_code, int flags) { | 12 namespace { |
13 | |
14 // This table maps a subset of |KeyboardCode| (VKEYs) to DomKey and character. | |
15 // Only values not otherwise handled by GetMeaningFromKeyCode() are here. | |
16 const struct KeyboardCodeToMeaning { | |
17 KeyboardCode key_code; | |
18 DomKey key; | |
19 base::char16 plain_character; | |
20 base::char16 shift_character; | |
21 } kKeyboardCodeToMeaning[] = { | |
22 {VKEY_BACK, DomKey::BACKSPACE, '\b'}, | |
23 {VKEY_TAB, DomKey::TAB, '\t'}, | |
24 {VKEY_RETURN, DomKey::ENTER, '\r'}, | |
25 {VKEY_ESCAPE, DomKey::ESCAPE, 0x1B}, | |
26 {VKEY_SPACE, DomKey::CHARACTER, ' '}, | |
27 {VKEY_MULTIPLY, DomKey::CHARACTER, '*'}, | |
28 {VKEY_ADD, DomKey::CHARACTER, '+'}, | |
29 {VKEY_SEPARATOR, DomKey::CHARACTER, ','}, | |
30 {VKEY_SUBTRACT, DomKey::CHARACTER, '-'}, | |
31 {VKEY_DECIMAL, DomKey::CHARACTER, '.'}, | |
32 {VKEY_DIVIDE, DomKey::CHARACTER, '/'}, | |
33 {VKEY_OEM_1, DomKey::CHARACTER, ';', ':'}, | |
34 {VKEY_OEM_PLUS, DomKey::CHARACTER, '=', '+'}, | |
35 {VKEY_OEM_COMMA, DomKey::CHARACTER, ',', '<'}, | |
36 {VKEY_OEM_MINUS, DomKey::CHARACTER, '-', '_'}, | |
37 {VKEY_OEM_PERIOD, DomKey::CHARACTER, '.', '>'}, | |
38 {VKEY_OEM_2, DomKey::CHARACTER, '/', '?'}, | |
39 {VKEY_OEM_3, DomKey::CHARACTER, '`', '~'}, | |
40 {VKEY_OEM_4, DomKey::CHARACTER, '[', '{'}, | |
41 {VKEY_OEM_5, DomKey::CHARACTER, '\\', '|'}, | |
42 {VKEY_OEM_6, DomKey::CHARACTER, ']', '}'}, | |
43 {VKEY_OEM_7, DomKey::CHARACTER, '\'', '"'}, | |
44 {VKEY_OEM_102, DomKey::CHARACTER, '<', '>'}, | |
45 {VKEY_CLEAR, DomKey::CLEAR}, | |
Wez
2014/12/12 20:04:18
Won't C extend the DomKey::CLEAR value out into th
kpschoedel
2014/12/12 21:20:39
Uninitialized fields are 0, but I'll make it expli
| |
46 {VKEY_SHIFT, DomKey::SHIFT}, | |
47 {VKEY_CONTROL, DomKey::CONTROL}, | |
48 {VKEY_MENU, DomKey::ALT}, | |
49 {VKEY_PAUSE, DomKey::PAUSE}, | |
50 {VKEY_CAPITAL, DomKey::CAPS_LOCK}, | |
51 // Windows conflates 'KanaMode' and 'HangulMode'. | |
52 {VKEY_KANA, DomKey::KANA_MODE}, | |
53 {VKEY_JUNJA, DomKey::JUNJA_MODE}, | |
54 {VKEY_FINAL, DomKey::FINAL_MODE}, | |
55 // Windows conflates 'HanjaMode' and 'KanjiMode'. | |
56 {VKEY_HANJA, DomKey::HANJA_MODE}, | |
57 {VKEY_CONVERT, DomKey::CONVERT}, | |
58 {VKEY_NONCONVERT, DomKey::NON_CONVERT}, | |
59 {VKEY_ACCEPT, DomKey::ACCEPT}, | |
60 {VKEY_MODECHANGE, DomKey::MODE_CHANGE}, | |
61 {VKEY_PRIOR, DomKey::PAGE_UP}, | |
62 {VKEY_NEXT, DomKey::PAGE_DOWN}, | |
63 {VKEY_END, DomKey::END}, | |
64 {VKEY_HOME, DomKey::HOME}, | |
65 {VKEY_LEFT, DomKey::ARROW_LEFT}, | |
66 {VKEY_UP, DomKey::ARROW_UP}, | |
67 {VKEY_RIGHT, DomKey::ARROW_RIGHT}, | |
68 {VKEY_DOWN, DomKey::ARROW_DOWN}, | |
69 {VKEY_SELECT, DomKey::SELECT}, | |
70 {VKEY_PRINT, DomKey::PRINT}, | |
71 {VKEY_EXECUTE, DomKey::EXECUTE}, | |
72 {VKEY_SNAPSHOT, DomKey::PRINT_SCREEN}, | |
73 {VKEY_INSERT, DomKey::INSERT}, | |
74 {VKEY_DELETE, DomKey::DEL}, | |
75 {VKEY_HELP, DomKey::HELP}, | |
76 {VKEY_LWIN, DomKey::OS}, | |
77 {VKEY_RWIN, DomKey::OS}, | |
78 {VKEY_APPS, DomKey::MEDIA_APPS}, | |
79 {VKEY_NUMLOCK, DomKey::NUM_LOCK}, | |
80 {VKEY_SCROLL, DomKey::SCROLL_LOCK}, | |
81 {VKEY_LSHIFT, DomKey::SHIFT}, | |
82 {VKEY_RSHIFT, DomKey::SHIFT}, | |
83 {VKEY_LCONTROL, DomKey::CONTROL}, | |
84 {VKEY_RCONTROL, DomKey::CONTROL}, | |
85 {VKEY_LMENU, DomKey::ALT}, | |
86 {VKEY_RMENU, DomKey::ALT}, | |
87 {VKEY_BROWSER_BACK, DomKey::BROWSER_BACK}, | |
88 {VKEY_BROWSER_FORWARD, DomKey::BROWSER_FORWARD}, | |
89 {VKEY_BROWSER_REFRESH, DomKey::BROWSER_REFRESH}, | |
90 {VKEY_BROWSER_STOP, DomKey::BROWSER_STOP}, | |
91 {VKEY_BROWSER_SEARCH, DomKey::BROWSER_SEARCH}, | |
92 {VKEY_BROWSER_FAVORITES, DomKey::BROWSER_FAVORITES}, | |
93 {VKEY_BROWSER_HOME, DomKey::BROWSER_HOME}, | |
94 {VKEY_VOLUME_MUTE, DomKey::VOLUME_MUTE}, | |
95 {VKEY_VOLUME_DOWN, DomKey::VOLUME_DOWN}, | |
96 {VKEY_VOLUME_UP, DomKey::VOLUME_UP}, | |
97 {VKEY_MEDIA_NEXT_TRACK, DomKey::MEDIA_TRACK_NEXT}, | |
98 {VKEY_MEDIA_PREV_TRACK, DomKey::MEDIA_TRACK_PREVIOUS}, | |
99 {VKEY_MEDIA_STOP, DomKey::MEDIA_STOP}, | |
100 {VKEY_MEDIA_PLAY_PAUSE, DomKey::MEDIA_PLAY_PAUSE}, | |
101 {VKEY_MEDIA_LAUNCH_MAIL, DomKey::LAUNCH_MAIL}, | |
102 {VKEY_MEDIA_LAUNCH_MEDIA_SELECT, DomKey::LAUNCH_MEDIA_PLAYER}, | |
103 {VKEY_MEDIA_LAUNCH_APP1, DomKey::LAUNCH_MY_COMPUTER}, | |
104 {VKEY_MEDIA_LAUNCH_APP2, DomKey::LAUNCH_CALCULATOR}, | |
105 {VKEY_OEM_8, DomKey::SUPER}, // ISO Level 5 Shift in ChromeOS | |
106 {VKEY_PROCESSKEY, DomKey::PROCESS}, | |
107 {VKEY_DBE_SBCSCHAR, DomKey::HANKAKU}, | |
108 {VKEY_DBE_DBCSCHAR, DomKey::ZENKAKU}, | |
109 {VKEY_ATTN, DomKey::ATTN}, | |
110 {VKEY_CRSEL, DomKey::CR_SEL}, | |
111 {VKEY_EXSEL, DomKey::EX_SEL}, | |
112 {VKEY_EREOF, DomKey::ERASE_EOF}, | |
113 {VKEY_PLAY, DomKey::MEDIA_PLAY}, | |
114 {VKEY_ZOOM, DomKey::ZOOM_TOGGLE}, | |
115 {VKEY_OEM_CLEAR, DomKey::CLEAR}, | |
116 {VKEY_ALTGR, DomKey::ALT_GRAPH}, | |
117 #if defined(OS_POSIX) | |
118 {VKEY_POWER, DomKey::POWER}, | |
119 {VKEY_BRIGHTNESS_DOWN, DomKey::BRIGHTNESS_DOWN}, | |
120 {VKEY_BRIGHTNESS_UP, DomKey::BRIGHTNESS_UP}, | |
121 {VKEY_COMPOSE, DomKey::COMPOSE}, | |
122 {VKEY_OEM_103, DomKey::MEDIA_REWIND}, | |
123 {VKEY_OEM_104, DomKey::MEDIA_FAST_FORWARD}, | |
124 #endif | |
125 }; | |
126 | |
127 } // anonymous namespace | |
128 | |
129 base::char16 GetCharacterFromKeyCode(KeyboardCode key_code, int flags) { | |
130 ui::DomKey dom_key; | |
131 base::char16 character; | |
132 if (GetMeaningFromKeyCode(key_code, flags, &dom_key, &character)) | |
133 return character; | |
134 return 0; | |
135 } | |
136 | |
137 bool GetMeaningFromKeyCode(KeyboardCode key_code, | |
138 int flags, | |
139 DomKey* dom_key, | |
140 base::char16* character) { | |
12 const bool ctrl = (flags & EF_CONTROL_DOWN) != 0; | 141 const bool ctrl = (flags & EF_CONTROL_DOWN) != 0; |
13 const bool shift = (flags & EF_SHIFT_DOWN) != 0; | 142 const bool shift = (flags & EF_SHIFT_DOWN) != 0; |
14 const bool upper = shift ^ ((flags & EF_CAPS_LOCK_DOWN) != 0); | 143 const bool upper = shift ^ ((flags & EF_CAPS_LOCK_DOWN) != 0); |
15 | 144 |
16 // Following Windows behavior to map ctrl-a ~ ctrl-z to \x01 ~ \x1A. | 145 // Control characters. |
17 if (key_code >= VKEY_A && key_code <= VKEY_Z) { | |
18 return static_cast<uint16> | |
19 (key_code - VKEY_A + (ctrl ? 1 : (upper ? 'A' : 'a'))); | |
20 } | |
21 | |
22 // Other ctrl characters | |
23 if (ctrl) { | 146 if (ctrl) { |
147 // Following Windows behavior to map ctrl-a ~ ctrl-z to \x01 ~ \x1A. | |
148 if (key_code >= VKEY_A && key_code <= VKEY_Z) { | |
149 *character = static_cast<uint16>(key_code - VKEY_A + 1); | |
150 switch (key_code) { | |
151 case VKEY_H: | |
152 *dom_key = DomKey::BACKSPACE; | |
153 break; | |
154 case VKEY_I: | |
155 *dom_key = DomKey::TAB; | |
156 break; | |
157 case VKEY_J: | |
158 case VKEY_M: | |
159 *dom_key = DomKey::ENTER; | |
160 break; | |
161 default: | |
162 *dom_key = DomKey::CHARACTER; | |
163 break; | |
164 } | |
165 return true; | |
166 } | |
167 // Other ctrl characters | |
24 if (shift) { | 168 if (shift) { |
25 // following graphics chars require shift key to input. | 169 // following graphics chars require shift key to input. |
26 switch (key_code) { | 170 switch (key_code) { |
27 // ctrl-@ maps to \x00 (Null byte) | 171 // ctrl-@ maps to \x00 (Null byte) |
28 case VKEY_2: | 172 case VKEY_2: |
29 return 0; | 173 *dom_key = DomKey::CHARACTER; |
174 *character = 0; | |
175 return true; | |
30 // ctrl-^ maps to \x1E (Record separator, Information separator two) | 176 // ctrl-^ maps to \x1E (Record separator, Information separator two) |
31 case VKEY_6: | 177 case VKEY_6: |
32 return 0x1E; | 178 *dom_key = DomKey::CHARACTER; |
179 *character = 0x1E; | |
180 return true; | |
33 // ctrl-_ maps to \x1F (Unit separator, Information separator one) | 181 // ctrl-_ maps to \x1F (Unit separator, Information separator one) |
34 case VKEY_OEM_MINUS: | 182 case VKEY_OEM_MINUS: |
35 return 0x1F; | 183 *dom_key = DomKey::CHARACTER; |
184 *character = 0x1F; | |
185 return true; | |
36 // Returns 0 for all other keys to avoid inputting unexpected chars. | 186 // Returns 0 for all other keys to avoid inputting unexpected chars. |
37 default: | 187 default: |
38 return 0; | 188 *dom_key = DomKey::UNIDENTIFIED; |
189 *character = 0; | |
190 return false; | |
39 } | 191 } |
40 } else { | 192 } else { |
41 switch (key_code) { | 193 switch (key_code) { |
42 // ctrl-[ maps to \x1B (Escape) | 194 // ctrl-[ maps to \x1B (Escape) |
43 case VKEY_OEM_4: | 195 case VKEY_OEM_4: |
44 return 0x1B; | 196 *dom_key = DomKey::ESCAPE; |
197 *character = 0x1B; | |
198 return true; | |
45 // ctrl-\ maps to \x1C (File separator, Information separator four) | 199 // ctrl-\ maps to \x1C (File separator, Information separator four) |
46 case VKEY_OEM_5: | 200 case VKEY_OEM_5: |
47 return 0x1C; | 201 *dom_key = DomKey::CHARACTER; |
202 *character = 0x1C; | |
203 return true; | |
48 // ctrl-] maps to \x1D (Group separator, Information separator three) | 204 // ctrl-] maps to \x1D (Group separator, Information separator three) |
49 case VKEY_OEM_6: | 205 case VKEY_OEM_6: |
50 return 0x1D; | 206 *dom_key = DomKey::CHARACTER; |
207 *character = 0x1D; | |
208 return true; | |
51 // ctrl-Enter maps to \x0A (Line feed) | 209 // ctrl-Enter maps to \x0A (Line feed) |
52 case VKEY_RETURN: | 210 case VKEY_RETURN: |
53 return 0x0A; | 211 *dom_key = DomKey::CHARACTER; |
212 *character = 0x0A; | |
213 return true; | |
54 // Returns 0 for all other keys to avoid inputting unexpected chars. | 214 // Returns 0 for all other keys to avoid inputting unexpected chars. |
55 default: | 215 default: |
56 return 0; | 216 *dom_key = DomKey::UNIDENTIFIED; |
217 *character = 0; | |
218 return false; | |
57 } | 219 } |
58 } | 220 } |
59 } | 221 } |
60 | 222 |
61 // For IME support. | |
62 if (key_code == ui::VKEY_PROCESSKEY) | |
63 return 0xE5; | |
64 | |
65 // Normal characters | 223 // Normal characters |
224 if (key_code >= VKEY_A && key_code <= VKEY_Z) { | |
225 *dom_key = DomKey::CHARACTER; | |
226 *character = static_cast<uint16>(key_code - VKEY_A + (upper ? 'A' : 'a')); | |
227 return true; | |
228 } | |
66 if (key_code >= VKEY_0 && key_code <= VKEY_9) { | 229 if (key_code >= VKEY_0 && key_code <= VKEY_9) { |
67 return shift ? ")!@#$%^&*("[key_code - VKEY_0] : | 230 *dom_key = DomKey::CHARACTER; |
68 static_cast<uint16>(key_code); | 231 *character = |
69 } else if (key_code >= VKEY_NUMPAD0 && key_code <= VKEY_NUMPAD9) { | 232 shift ? ")!@#$%^&*("[key_code - VKEY_0] : static_cast<uint16>(key_code); |
70 return static_cast<uint16>(key_code - VKEY_NUMPAD0 + '0'); | 233 return true; |
71 } | 234 } |
72 | 235 if (key_code >= VKEY_NUMPAD0 && key_code <= VKEY_NUMPAD9) { |
73 switch (key_code) { | 236 *dom_key = DomKey::CHARACTER; |
74 case VKEY_TAB: | 237 *character = static_cast<uint16>(key_code - VKEY_NUMPAD0 + '0'); |
75 return '\t'; | 238 return true; |
76 case VKEY_RETURN: | 239 } |
77 return '\r'; | 240 |
78 case VKEY_MULTIPLY: | 241 // Function keys |
79 return '*'; | 242 if (key_code >= VKEY_F1 && key_code <= VKEY_F24) { |
80 case VKEY_ADD: | 243 *dom_key = |
81 return '+'; | 244 static_cast<DomKey>(key_code - VKEY_F1 + static_cast<int>(DomKey::F1)); |
82 case VKEY_SUBTRACT: | 245 *character = 0; |
83 return '-'; | 246 return true; |
84 case VKEY_DECIMAL: | 247 } |
85 return '.'; | 248 |
86 case VKEY_DIVIDE: | 249 // Isolated characters. |
Wez
2014/12/12 20:04:18
Needs a better description - how would you go abou
kpschoedel
2014/12/12 21:20:39
Changed to ‘Other keys.’
| |
87 return '/'; | 250 for (size_t i = 0; i < arraysize(kKeyboardCodeToMeaning); ++i) { |
88 case VKEY_SPACE: | 251 if (kKeyboardCodeToMeaning[i].key_code == key_code) { |
89 return ' '; | 252 const KeyboardCodeToMeaning* p = &kKeyboardCodeToMeaning[i]; |
90 case VKEY_OEM_1: | 253 *dom_key = p->key; |
91 return shift ? ':' : ';'; | 254 *character = (shift && p->shift_character) ? p->shift_character |
92 case VKEY_OEM_PLUS: | 255 : p->plain_character; |
93 return shift ? '+' : '='; | 256 return true; |
94 case VKEY_OEM_COMMA: | 257 } |
95 return shift ? '<' : ','; | 258 } |
96 case VKEY_OEM_MINUS: | 259 *dom_key = DomKey::UNIDENTIFIED; |
97 return shift ? '_' : '-'; | 260 *character = 0; |
98 case VKEY_OEM_PERIOD: | 261 return false; |
99 return shift ? '>' : '.'; | |
100 case VKEY_OEM_2: | |
101 return shift ? '?' : '/'; | |
102 case VKEY_OEM_3: | |
103 return shift ? '~' : '`'; | |
104 case VKEY_OEM_4: | |
105 return shift ? '{' : '['; | |
106 case VKEY_OEM_5: | |
107 return shift ? '|' : '\\'; | |
108 case VKEY_OEM_6: | |
109 return shift ? '}' : ']'; | |
110 case VKEY_OEM_7: | |
111 return shift ? '"' : '\''; | |
112 default: | |
113 return 0; | |
114 } | |
115 } | 262 } |
116 | 263 |
117 } // namespace ui | 264 } // namespace ui |
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