ui/events/ozone/layout/layout_util.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/events/ozone/layout/layout_util.h"
   6
   7 #include <algorithm>
   8
   9 #include "ui/events/event_constants.h"
  10 #include "ui/events/keycodes/dom3/dom_code.h"
  11 #include "ui/events/keycodes/dom3/dom_key.h"
  12 #include "ui/events/keycodes/keyboard_code_conversion.h"
  13
  14 namespace ui {
  15
  16 namespace {
  17
  18 // This table, used by DomKeyToKeyboardCode(), maps DOM Level 3 .code
  19 // values to legacy Windows-based VKEY values, where the VKEYs are
  20 // interpreted positionally.
  21 const struct DomCodeToKeyboardCodeEntry {
  22   DomCode dom_code;
  23   KeyboardCode key_code;
  24 } dom_code_to_keyboard_code[] = {
  25     // Entries are ordered by numeric value of the DomCode enum,
  26     // which is the USB physical key code.
  27     // DomCode::HYPER                              0x000010 Hyper
  28     // DomCode::SUPER                              0x000011 Super
  29     // DomCode::FN                                 0x000012 Fn
  30     // DomCode::FN_LOCK                            0x000013 FLock
  31     // DomCode::SUSPEND                            0x000014 Suspend
  32     // DomCode::RESUME                             0x000015 Resume
  33     // DomCode::TURBO                              0x000016 Turbo
  34     {DomCode::SLEEP, VKEY_SLEEP},  // 0x010082 Sleep
  35     // DomCode::WAKE_UP                            0x010083 WakeUp
  36     {DomCode::KEY_A, VKEY_A},              // 0x070004 KeyA
  37     {DomCode::KEY_B, VKEY_B},              // 0x070005 KeyB
  38     {DomCode::KEY_C, VKEY_C},              // 0x070006 KeyC
  39     {DomCode::KEY_D, VKEY_D},              // 0x070007 KeyD
  40     {DomCode::KEY_E, VKEY_E},              // 0x070008 KeyE
  41     {DomCode::KEY_F, VKEY_F},              // 0x070009 KeyF
  42     {DomCode::KEY_G, VKEY_G},              // 0x07000A KeyG
  43     {DomCode::KEY_H, VKEY_H},              // 0x07000B KeyH
  44     {DomCode::KEY_I, VKEY_I},              // 0x07000C KeyI
  45     {DomCode::KEY_J, VKEY_J},              // 0x07000D KeyJ
  46     {DomCode::KEY_K, VKEY_K},              // 0x07000E KeyK
  47     {DomCode::KEY_L, VKEY_L},              // 0x07000F KeyL
  48     {DomCode::KEY_M, VKEY_M},              // 0x070010 KeyM
  49     {DomCode::KEY_N, VKEY_N},              // 0x070011 KeyN
  50     {DomCode::KEY_O, VKEY_O},              // 0x070012 KeyO
  51     {DomCode::KEY_P, VKEY_P},              // 0x070013 KeyP
  52     {DomCode::KEY_Q, VKEY_Q},              // 0x070014 KeyQ
  53     {DomCode::KEY_R, VKEY_R},              // 0x070015 KeyR
  54     {DomCode::KEY_S, VKEY_S},              // 0x070016 KeyS
  55     {DomCode::KEY_T, VKEY_T},              // 0x070017 KeyT
  56     {DomCode::KEY_U, VKEY_U},              // 0x070018 KeyU
  57     {DomCode::KEY_V, VKEY_V},              // 0x070019 KeyV
  58     {DomCode::KEY_W, VKEY_W},              // 0x07001A KeyW
  59     {DomCode::KEY_X, VKEY_X},              // 0x07001B KeyX
  60     {DomCode::KEY_Y, VKEY_Y},              // 0x07001C KeyY
  61     {DomCode::KEY_Z, VKEY_Z},              // 0x07001D KeyZ
  62     {DomCode::DIGIT1, VKEY_1},             // 0x07001E Digit1
  63     {DomCode::DIGIT2, VKEY_2},             // 0x07001F Digit2
  64     {DomCode::DIGIT3, VKEY_3},             // 0x070020 Digit3
  65     {DomCode::DIGIT4, VKEY_4},             // 0x070021 Digit4
  66     {DomCode::DIGIT5, VKEY_5},             // 0x070022 Digit5
  67     {DomCode::DIGIT6, VKEY_6},             // 0x070023 Digit6
  68     {DomCode::DIGIT7, VKEY_7},             // 0x070024 Digit7
  69     {DomCode::DIGIT8, VKEY_8},             // 0x070025 Digit8
  70     {DomCode::DIGIT9, VKEY_9},             // 0x070026 Digit9
  71     {DomCode::DIGIT0, VKEY_0},             // 0x070027 Digit0
  72     {DomCode::ENTER, VKEY_RETURN},         // 0x070028 Enter
  73     {DomCode::ESCAPE, VKEY_ESCAPE},        // 0x070029 Escape
  74     {DomCode::BACKSPACE, VKEY_BACK},       // 0x07002A Backspace
  75     {DomCode::TAB, VKEY_TAB},              // 0x07002B Tab
  76     {DomCode::SPACE, VKEY_SPACE},          // 0x07002C Space
  77     {DomCode::MINUS, VKEY_OEM_MINUS},      // 0x07002D Minus
  78     {DomCode::EQUAL, VKEY_OEM_PLUS},       // 0x07002E Equal
  79     {DomCode::BRACKET_LEFT, VKEY_OEM_4},   // 0x07002F BracketLeft
  80     {DomCode::BRACKET_RIGHT, VKEY_OEM_6},  // 0x070030 BracketRight
  81     {DomCode::BACKSLASH, VKEY_OEM_5},      // 0x070031 Backslash
  82     // DomCode::INTL_HASH, VKEY_OEM_5           // 0x070032 IntlHash
  83     {DomCode::SEMICOLON, VKEY_OEM_1},           // 0x070033 Semicolon
  84     {DomCode::QUOTE, VKEY_OEM_7},               // 0x070034 Quote
  85     {DomCode::BACKQUOTE, VKEY_OEM_3},           // 0x070035 Backquote
  86     {DomCode::COMMA, VKEY_OEM_COMMA},           // 0x070036 Comma
  87     {DomCode::PERIOD, VKEY_OEM_PERIOD},         // 0x070037 Period
  88     {DomCode::SLASH, VKEY_OEM_2},               // 0x070038 Slash
  89     {DomCode::CAPS_LOCK, VKEY_CAPITAL},         // 0x070039 CapsLock
  90     {DomCode::F1, VKEY_F1},                     // 0x07003A F1
  91     {DomCode::F2, VKEY_F2},                     // 0x07003B F2
  92     {DomCode::F3, VKEY_F3},                     // 0x07003C F3
  93     {DomCode::F4, VKEY_F4},                     // 0x07003D F4
  94     {DomCode::F5, VKEY_F5},                     // 0x07003E F5
  95     {DomCode::F6, VKEY_F6},                     // 0x07003F F6
  96     {DomCode::F7, VKEY_F7},                     // 0x070040 F7
  97     {DomCode::F8, VKEY_F8},                     // 0x070041 F8
  98     {DomCode::F9, VKEY_F9},                     // 0x070042 F9
  99     {DomCode::F10, VKEY_F10},                   // 0x070043 F10
 100     {DomCode::F11, VKEY_F11},                   // 0x070044 F11
 101     {DomCode::F12, VKEY_F12},                   // 0x070045 F12
 102     {DomCode::PRINT_SCREEN, VKEY_SNAPSHOT},     // 0x070046 PrintScreen
 103     {DomCode::SCROLL_LOCK, VKEY_SCROLL},        // 0x070047 ScrollLock
 104     {DomCode::PAUSE, VKEY_PAUSE},               // 0x070048 Pause
 105     {DomCode::INSERT, VKEY_INSERT},             // 0x070049 Insert
 106     {DomCode::HOME, VKEY_HOME},                 // 0x07004A Home
 107     {DomCode::PAGE_UP, VKEY_PRIOR},             // 0x07004B PageUp
 108     {DomCode::DEL, VKEY_DELETE},                // 0x07004C Delete
 109     {DomCode::END, VKEY_END},                   // 0x07004D End
 110     {DomCode::PAGE_DOWN, VKEY_NEXT},            // 0x07004E PageDown
 111     {DomCode::ARROW_RIGHT, VKEY_RIGHT},         // 0x07004F ArrowRight
 112     {DomCode::ARROW_LEFT, VKEY_LEFT},           // 0x070050 ArrowLeft
 113     {DomCode::ARROW_DOWN, VKEY_DOWN},           // 0x070051 ArrowDown
 114     {DomCode::ARROW_UP, VKEY_UP},               // 0x070052 ArrowUp
 115     {DomCode::NUM_LOCK, VKEY_NUMLOCK},          // 0x070053 NumLock
 116     {DomCode::NUMPAD_DIVIDE, VKEY_DIVIDE},      // 0x070054 NumpadDivide
 117     {DomCode::NUMPAD_MULTIPLY, VKEY_MULTIPLY},  // 0x070055 NumpadMultiply
 118     {DomCode::NUMPAD_SUBTRACT, VKEY_SUBTRACT},  // 0x070056 NumpadSubtract
 119     {DomCode::NUMPAD_ADD, VKEY_ADD},            // 0x070057 NumpadAdd
 120     {DomCode::NUMPAD_ENTER, VKEY_RETURN},       // 0x070058 NumpadEnter
 121     {DomCode::NUMPAD1, VKEY_NUMPAD1},           // 0x070059 Numpad1
 122     {DomCode::NUMPAD2, VKEY_NUMPAD2},           // 0x07005A Numpad2
 123     {DomCode::NUMPAD3, VKEY_NUMPAD3},           // 0x07005B Numpad3
 124     {DomCode::NUMPAD4, VKEY_NUMPAD4},           // 0x07005C Numpad4
 125     {DomCode::NUMPAD5, VKEY_NUMPAD5},           // 0x07005D Numpad5
 126     {DomCode::NUMPAD6, VKEY_NUMPAD6},           // 0x07005E Numpad6
 127     {DomCode::NUMPAD7, VKEY_NUMPAD7},           // 0x07005F Numpad7
 128     {DomCode::NUMPAD8, VKEY_NUMPAD8},           // 0x070060 Numpad8
 129     {DomCode::NUMPAD9, VKEY_NUMPAD9},           // 0x070061 Numpad9
 130     {DomCode::NUMPAD0, VKEY_NUMPAD0},           // 0x070062 Numpad0
 131     {DomCode::NUMPAD_DECIMAL, VKEY_DECIMAL},    // 0x070063 NumpadDecimal
 132     {DomCode::INTL_BACKSLASH, VKEY_OEM_102},    // 0x070064 IntlBackslash
 133     {DomCode::CONTEXT_MENU, VKEY_APPS},         // 0x070065 ContextMenu
 134     {DomCode::POWER, VKEY_POWER},               // 0x070066 Power
 135     // DomCode::NUMPAD_EQUAL                       0x070067 NumpadEqual
 136     // DomCode::OPEN                               0x070074 Open
 137     {DomCode::HELP, VKEY_HELP},      // 0x070075 Help
 138     {DomCode::SELECT, VKEY_SELECT},  // 0x070077 Select
 139     // DomCode::AGAIN                             0x070079 Again
 140     // DomCode::UNDO                              0x07007A Undo
 141     // DomCode::CUT                               0x07007B Cut
 142     // DomCode::COPY                              0x07007C Copy
 143     // DomCode::PASTE                             0x07007D Paste
 144     // DomCode::FIND                              0x07007E Find
 145     {DomCode::VOLUME_MUTE, VKEY_VOLUME_MUTE},  // 0x07007F VolumeMute
 146     {DomCode::VOLUME_UP, VKEY_VOLUME_UP},      // 0x070080 VolumeUp
 147     {DomCode::VOLUME_DOWN, VKEY_VOLUME_DOWN},  // 0x070081 VolumeDown
 148     {DomCode::NUMPAD_COMMA, VKEY_OEM_COMMA},   // 0x070085 NumpadComma
 149     {DomCode::INTL_RO, VKEY_OEM_102},          // 0x070087 IntlRo
 150     {DomCode::KANA_MODE, VKEY_KANA},           // 0x070088 KanaMode
 151     {DomCode::INTL_YEN, VKEY_OEM_5},           // 0x070089 IntlYen
 152     {DomCode::CONVERT, VKEY_CONVERT},          // 0x07008A Convert
 153     {DomCode::NON_CONVERT, VKEY_NONCONVERT},   // 0x07008B NonConvert
 154     {DomCode::LANG1, VKEY_KANA},               // 0x070090 Lang1
 155     {DomCode::LANG2, VKEY_KANJI},              // 0x070091 Lang2
 156     // DomCode::LANG3                             0x070092 Lang3
 157     // DomCode::LANG4                             0x070093 Lang4
 158     // DomCode::LANG5                             0x070094 Lang5
 159     // DomCode::ABORT                             0x07009B Abort
 160     // DomCode::PROPS                             0x0700A3 Props
 161     // DomCode::NUMPAD_PAREN_LEFT                 0x0700B6 NumpadParenLeft
 162     // DomCode::NUMPAD_PAREN_RIGHT                0x0700B7 NumpadParenRight
 163     {DomCode::NUMPAD_BACKSPACE, VKEY_BACK},  // 0x0700BB NumpadBackspace
 164     // DomCode::NUMPAD_MEMORY_STORE                0x0700D0 NumpadMemoryStore
 165     // DomCode::NUMPAD_MEMORY_RECALL               0x0700D1 NumpadMemoryRecall
 166     // DomCode::NUMPAD_MEMORY_CLEAR                0x0700D2 NumpadMemoryClear
 167     // DomCode::NUMPAD_MEMORY_ADD                  0x0700D3 NumpadMemoryAdd
 168     // DomCode::NUMPAD_MEMORY_SUBTRACT             0x0700D4
 169     // NumpadMemorySubtract
 170     {DomCode::NUMPAD_CLEAR, VKEY_CLEAR},        // 0x0700D8 NumpadClear
 171     {DomCode::NUMPAD_CLEAR_ENTRY, VKEY_CLEAR},  // 0x0700D9 NumpadClearEntry
 172     {DomCode::CONTROL_LEFT, VKEY_LCONTROL},     // 0x0700E0 ControlLeft
 173     {DomCode::SHIFT_LEFT, VKEY_LSHIFT},         // 0x0700E1 ShiftLeft
 174     {DomCode::ALT_LEFT, VKEY_LMENU},            // 0x0700E2 AltLeft
 175     {DomCode::OS_LEFT, VKEY_LWIN},              // 0x0700E3 OSLeft
 176     {DomCode::CONTROL_RIGHT, VKEY_RCONTROL},    // 0x0700E4 ControlRight
 177     {DomCode::SHIFT_RIGHT, VKEY_RSHIFT},        // 0x0700E5 ShiftRight
 178     {DomCode::ALT_RIGHT, VKEY_RMENU},           // 0x0700E6 AltRight
 179     {DomCode::OS_RIGHT, VKEY_RWIN},             // 0x0700E7 OSRight
 180     {DomCode::MEDIA_TRACK_NEXT,
 181      VKEY_MEDIA_NEXT_TRACK},  // 0x0C00B5 MediaTrackNext
 182     {DomCode::MEDIA_TRACK_PREVIOUS,
 183      VKEY_MEDIA_PREV_TRACK},                 // 0x0C00B6 MediaTrackPrevious
 184     {DomCode::MEDIA_STOP, VKEY_MEDIA_STOP},  // 0x0C00B7 MediaStop
 185     // DomCode::EJECT                           0x0C00B8 Eject
 186     {DomCode::MEDIA_PLAY_PAUSE,
 187      VKEY_MEDIA_PLAY_PAUSE},  // 0x0C00CD MediaPlayPause
 188     {DomCode::MEDIA_SELECT,
 189      VKEY_MEDIA_LAUNCH_MEDIA_SELECT},                // 0x0C0183 MediaSelect
 190     {DomCode::LAUNCH_MAIL, VKEY_MEDIA_LAUNCH_MAIL},  // 0x0C018A LaunchMail
 191     {DomCode::LAUNCH_APP2, VKEY_MEDIA_LAUNCH_APP2},  // 0x0C0192 LaunchApp2
 192     {DomCode::LAUNCH_APP1, VKEY_MEDIA_LAUNCH_APP1},  // 0x0C0194 LaunchApp1
 193     {DomCode::BROWSER_SEARCH, VKEY_BROWSER_SEARCH},  // 0x0C0221 BrowserSearch
 194     {DomCode::BROWSER_HOME, VKEY_BROWSER_HOME},      // 0x0C0223 BrowserHome
 195     {DomCode::BROWSER_BACK, VKEY_BROWSER_BACK},      // 0x0C0224 BrowserBack
 196     {DomCode::BROWSER_FORWARD,
 197      VKEY_BROWSER_FORWARD},                      // 0x0C0225 BrowserForward
 198     {DomCode::BROWSER_STOP, VKEY_BROWSER_STOP},  // 0x0C0226 BrowserStop
 199     {DomCode::BROWSER_REFRESH,
 200      VKEY_BROWSER_REFRESH},  // 0x0C0227 BrowserRefresh
 201     {DomCode::BROWSER_FAVORITES,
 202      VKEY_BROWSER_FAVORITES},  // 0x0C022A BrowserFavorites
 203 };
 204
 205 }  // anonymous namespace
 206
 207 // Returns a Windows-based VKEY for a non-printable DOM Level 3 |key|.
 208 // The returned VKEY is non-positional (e.g. VKEY_SHIFT).
 209 KeyboardCode NonPrintableDomKeyToKeyboardCode(DomKey dom_key) {
 210   switch (dom_key) {
 211     // No value.
 212     case DomKey::NONE:
 213       return VKEY_UNKNOWN;
 214     // Character values.
 215     // Special Key Values
 216     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-special
 217     case DomKey::UNIDENTIFIED:
 218       return VKEY_UNKNOWN;
 219     // Modifier Keys
 220     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-modifier
 221     case DomKey::ALT:
 222       return VKEY_MENU;
 223     case DomKey::ALT_GRAPH:
 224       return VKEY_ALTGR;
 225     case DomKey::CAPS_LOCK:
 226       return VKEY_CAPITAL;
 227     case DomKey::CONTROL:
 228       return VKEY_CONTROL;
 229     case DomKey::NUM_LOCK:
 230       return VKEY_NUMLOCK;
 231     case DomKey::OS:
 232       return VKEY_LWIN;
 233     case DomKey::SCROLL_LOCK:
 234       return VKEY_SCROLL;
 235     case DomKey::SHIFT:
 236       return VKEY_SHIFT;
 237     // Whitespace Keys
 238     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-whitespace
 239     case DomKey::ENTER:
 240       return VKEY_RETURN;
 241     case DomKey::SEPARATOR:
 242       return VKEY_SEPARATOR;
 243     case DomKey::TAB:
 244       return VKEY_TAB;
 245     // Navigation Keys
 246     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-navigation
 247     case DomKey::ARROW_DOWN:
 248       return VKEY_DOWN;
 249     case DomKey::ARROW_LEFT:
 250       return VKEY_LEFT;
 251     case DomKey::ARROW_RIGHT:
 252       return VKEY_RIGHT;
 253     case DomKey::ARROW_UP:
 254       return VKEY_UP;
 255     case DomKey::END:
 256       return VKEY_END;
 257     case DomKey::HOME:
 258       return VKEY_HOME;
 259     case DomKey::PAGE_DOWN:
 260       return VKEY_NEXT;
 261     case DomKey::PAGE_UP:
 262       return VKEY_PRIOR;
 263     // Editing Keys
 264     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-editing
 265     case DomKey::BACKSPACE:
 266       return VKEY_BACK;
 267     case DomKey::CLEAR:
 268       return VKEY_CLEAR;
 269     case DomKey::CR_SEL:
 270       return VKEY_CRSEL;
 271     case DomKey::DEL:
 272       return VKEY_DELETE;
 273     case DomKey::ERASE_EOF:
 274       return VKEY_EREOF;
 275     case DomKey::EX_SEL:
 276       return VKEY_EXSEL;
 277     case DomKey::INSERT:
 278       return VKEY_INSERT;
 279     // UI Keys
 280     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-ui
 281     case DomKey::ACCEPT:
 282       return VKEY_ACCEPT;
 283     case DomKey::ATTN:
 284       return VKEY_ATTN;
 285     case DomKey::CONTEXT_MENU:
 286       return VKEY_APPS;
 287     case DomKey::ESCAPE:
 288       return VKEY_ESCAPE;
 289     case DomKey::EXECUTE:
 290       return VKEY_EXECUTE;
 291     case DomKey::HELP:
 292       return VKEY_HELP;
 293     case DomKey::PAUSE:
 294       return VKEY_PAUSE;
 295     case DomKey::PLAY:
 296       return VKEY_PLAY;
 297     case DomKey::SELECT:
 298       return VKEY_SELECT;
 299     // Device Keys
 300     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-device
 301     case DomKey::BRIGHTNESS_DOWN:
 302       return VKEY_BRIGHTNESS_DOWN;
 303     case DomKey::BRIGHTNESS_UP:
 304       return VKEY_BRIGHTNESS_UP;
 305     case DomKey::POWER:
 306       return VKEY_POWER;
 307     case DomKey::PRINT_SCREEN:
 308       return VKEY_SNAPSHOT;
 309 // IME and Composition Keys
 310 // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-composition
 311 #if 0  // TODO(kpschoedel)
 312     case DomKey::COMPOSE:
 313       return VKEY_COMPOSE;
 314 #endif
 315     case DomKey::CONVERT:
 316       return VKEY_CONVERT;
 317     case DomKey::FINAL_MODE:
 318       return VKEY_FINAL;
 319     case DomKey::MODE_CHANGE:
 320       return VKEY_MODECHANGE;
 321     case DomKey::NON_CONVERT:
 322       return VKEY_NONCONVERT;
 323     case DomKey::PROCESS:
 324       return VKEY_PROCESSKEY;
 325     // Keys specific to Korean keyboards
 326     case DomKey::HANGUL_MODE:
 327       return VKEY_HANGUL;
 328     case DomKey::HANJA_MODE:
 329       return VKEY_HANJA;
 330     case DomKey::JUNJA_MODE:
 331       return VKEY_JUNJA;
 332     // Keys specific to Japanese keyboards
 333     case DomKey::HANKAKU:
 334       return VKEY_DBE_SBCSCHAR;
 335     case DomKey::KANA_MODE:
 336       return VKEY_KANA;
 337     case DomKey::KANJI_MODE:
 338       return VKEY_KANJI;
 339     case DomKey::ZENKAKU:
 340       return VKEY_DBE_DBCSCHAR;
 341     case DomKey::ZENKAKU_HANKAKU:
 342       return VKEY_DBE_DBCSCHAR;
 343     // General-Purpose Function Keys
 344     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-function
 345     case DomKey::F1:
 346       return VKEY_F1;
 347     case DomKey::F2:
 348       return VKEY_F2;
 349     case DomKey::F3:
 350       return VKEY_F3;
 351     case DomKey::F4:
 352       return VKEY_F4;
 353     case DomKey::F5:
 354       return VKEY_F5;
 355     case DomKey::F6:
 356       return VKEY_F6;
 357     case DomKey::F7:
 358       return VKEY_F7;
 359     case DomKey::F8:
 360       return VKEY_F8;
 361     case DomKey::F9:
 362       return VKEY_F9;
 363     case DomKey::F10:
 364       return VKEY_F10;
 365     case DomKey::F11:
 366       return VKEY_F11;
 367     case DomKey::F12:
 368       return VKEY_F12;
 369     case DomKey::F13:
 370       return VKEY_F13;
 371     case DomKey::F14:
 372       return VKEY_F14;
 373     case DomKey::F15:
 374       return VKEY_F15;
 375     case DomKey::F16:
 376       return VKEY_F16;
 377     case DomKey::F17:
 378       return VKEY_F17;
 379     case DomKey::F18:
 380       return VKEY_F18;
 381     case DomKey::F19:
 382       return VKEY_F19;
 383     case DomKey::F20:
 384       return VKEY_F20;
 385     case DomKey::F21:
 386       return VKEY_F21;
 387     case DomKey::F22:
 388       return VKEY_F22;
 389     case DomKey::F23:
 390       return VKEY_F23;
 391     case DomKey::F24:
 392       return VKEY_F24;
 393     // Multimedia Keys
 394     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-multimedia
 395     case DomKey::MEDIA_PLAY_PAUSE:
 396       return VKEY_MEDIA_PLAY_PAUSE;
 397     case DomKey::MEDIA_SELECT:
 398       return VKEY_MEDIA_LAUNCH_MEDIA_SELECT;
 399     case DomKey::MEDIA_STOP:
 400       return VKEY_MEDIA_STOP;
 401     case DomKey::MEDIA_TRACK_NEXT:
 402       return VKEY_MEDIA_NEXT_TRACK;
 403     case DomKey::MEDIA_TRACK_PREVIOUS:
 404       return VKEY_MEDIA_PREV_TRACK;
 405     case DomKey::PRINT:
 406       return VKEY_PRINT;
 407     case DomKey::VOLUME_DOWN:
 408       return VKEY_VOLUME_DOWN;
 409     case DomKey::VOLUME_MUTE:
 410       return VKEY_VOLUME_MUTE;
 411     case DomKey::VOLUME_UP:
 412       return VKEY_VOLUME_UP;
 413     // Application Keys
 414     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-apps
 415     case DomKey::LAUNCH_CALCULATOR:
 416       return VKEY_MEDIA_LAUNCH_APP2;
 417     case DomKey::LAUNCH_MAIL:
 418       return VKEY_MEDIA_LAUNCH_MAIL;
 419     case DomKey::LAUNCH_MY_COMPUTER:
 420       return VKEY_MEDIA_LAUNCH_APP1;
 421     // Browser Keys
 422     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-browser
 423     case DomKey::BROWSER_BACK:
 424       return VKEY_BROWSER_BACK;
 425     case DomKey::BROWSER_FAVORITES:
 426       return VKEY_BROWSER_FAVORITES;
 427     case DomKey::BROWSER_FORWARD:
 428       return VKEY_BROWSER_FORWARD;
 429     case DomKey::BROWSER_HOME:
 430       return VKEY_BROWSER_HOME;
 431     case DomKey::BROWSER_REFRESH:
 432       return VKEY_BROWSER_REFRESH;
 433     case DomKey::BROWSER_SEARCH:
 434       return VKEY_BROWSER_SEARCH;
 435     case DomKey::BROWSER_STOP:
 436       return VKEY_BROWSER_STOP;
 437     // Media Controller Keys
 438     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-media-controller
 439     case DomKey::ZOOM_TOGGLE:
 440       return VKEY_ZOOM;
 441     // No value.
 442     default:
 443       return VKEY_UNKNOWN;
 444   }
 445 }
 446
 447 // Returns the Windows-based VKEY value corresponding to a DOM Level 3 |code|.
 448 // The returned VKEY is located (e.g. VKEY_LSHIFT).
 449 KeyboardCode DomCodeToKeyboardCode(DomCode dom_code) {
 450   const DomCodeToKeyboardCodeEntry* end =
 451       dom_code_to_keyboard_code + arraysize(dom_code_to_keyboard_code);
 452   const DomCodeToKeyboardCodeEntry* found =
 453       std::lower_bound(dom_code_to_keyboard_code, end, dom_code,
 454                        [](const DomCodeToKeyboardCodeEntry& a, DomCode b) {
 455         return static_cast<int>(a.dom_code) < static_cast<int>(b);
 456       });
 457   if ((found != end) && (found->dom_code == dom_code))
 458     return found->key_code;
 459   return VKEY_UNKNOWN;
 460 }
 461
 462 // Returns the Windows-based VKEY value corresponding to a DOM Level 3 |code|.
 463 // The returned VKEY is non-located (e.g. VKEY_SHIFT).
 464 KeyboardCode DomCodeToNonLocatedKeyboardCode(DomCode dom_code) {
 465   return LocatedToNonLocatedKeyboardCode(DomCodeToKeyboardCode(dom_code));
 466 }
 467
 468 bool LookupControlCharacter(DomCode dom_code,
 469                             int flags,
 470                             DomKey* dom_key,
 471                             base::char16* character,
 472                             KeyboardCode* key_code) {
 473   if ((flags & EF_CONTROL_DOWN) == 0)
 474     return false;
 475
 476   int code = static_cast<int>(dom_code);
 477   const int kKeyA = static_cast<int>(DomCode::KEY_A);
 478   // Control-A - Control-Z map to 0x01 - 0x1A.
 479   if (code >= kKeyA && code <= static_cast<int>(DomCode::KEY_Z)) {
 480     *character = static_cast<base::char16>(code - kKeyA + 1);
 481     *key_code = static_cast<KeyboardCode>(code - kKeyA + VKEY_A);
 482     switch (dom_code) {
 483       case DomCode::KEY_H:
 484         *dom_key = DomKey::BACKSPACE;
 485       case DomCode::KEY_I:
 486         *dom_key = DomKey::TAB;
 487       case DomCode::KEY_M:
 488         *dom_key = DomKey::ENTER;
 489       default:
 490         *dom_key = DomKey::CHARACTER;
 491     }
 492     return true;
 493   }
 494
 495   switch (dom_code) {
 496     case DomCode::DIGIT2:
 497       // NUL
 498       *character = 0;
 499       *dom_key = DomKey::CHARACTER;
 500       *key_code = VKEY_2;
 501       return true;
 502     case DomCode::ENTER:
 503       // NL
 504       *character = 0x0A;
 505       *dom_key = DomKey::CHARACTER;
 506       *key_code = VKEY_RETURN;
 507       return true;
 508     case DomCode::BRACKET_LEFT:
 509       // ESC
 510       *character = 0x1B;
 511       *dom_key = DomKey::ESCAPE;
 512       *key_code = VKEY_OEM_4;
 513       return true;
 514     case DomCode::BACKSLASH:
 515       // FS
 516       *character = 0x1C;
 517       *dom_key = DomKey::CHARACTER;
 518       *key_code = VKEY_OEM_5;
 519       return true;
 520     case DomCode::BRACKET_RIGHT:
 521       // GS
 522       *character = 0x1D;
 523       *dom_key = DomKey::CHARACTER;
 524       *key_code = VKEY_OEM_6;
 525       return true;
 526     case DomCode::DIGIT6:
 527       // RS
 528       *character = 0x1E;
 529       *dom_key = DomKey::CHARACTER;
 530       *key_code = VKEY_6;
 531       return true;
 532     case DomCode::MINUS:
 533       // US
 534       *character = 0x1F;
 535       *dom_key = DomKey::CHARACTER;
 536       *key_code = VKEY_OEM_MINUS;
 537       return true;
 538     default:
 539       return false;
 540   }
 541 }
 542
 543 int ModifierDomKeyToEventFlag(DomKey key) {
 544   switch (key) {
 545     case DomKey::ALT:
 546       return EF_ALT_DOWN;
 547     case DomKey::ALT_GRAPH:
 548       return EF_ALTGR_DOWN;
 549     // ChromeOS uses F16 to represent CapsLock before the rewriting stage,
 550     // based on the historical X11 implementation.
 551     // TODO post-X11: Switch to use CapsLock uniformly.
 552     case DomKey::F16:
 553     case DomKey::CAPS_LOCK:
 554       return EF_CAPS_LOCK_DOWN;
 555     case DomKey::CONTROL:
 556       return EF_CONTROL_DOWN;
 557     case DomKey::HYPER:
 558       return EF_MOD3_DOWN;
 559     case DomKey::META:
 560       return EF_ALT_DOWN;
 561     case DomKey::OS:
 562       return EF_COMMAND_DOWN;
 563     case DomKey::SHIFT:
 564       return EF_SHIFT_DOWN;
 565     case DomKey::SUPER:
 566       return EF_MOD3_DOWN;
 567     default:
 568       return EF_NONE;
 569   }
 570   // Not represented:
 571   //   DomKey::ACCEL
 572   //   DomKey::FN
 573   //   DomKey::FN_LOCK
 574   //   DomKey::NUM_LOCK
 575   //   DomKey::SCROLL_LOCK
 576   //   DomKey::SYMBOL
 577   //   DomKey::SYMBOL_LOCK
 578 }
 579
 580 }  // namespace ui