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
  13 namespace ui {
  14
  15 namespace {
  16
  17 bool IsRightSideDomCode(DomCode code) {
  18   return (code == DomCode::SHIFT_RIGHT) || (code == DomCode::CONTROL_RIGHT) ||
  19          (code == DomCode::ALT_RIGHT) || (code == DomCode::OS_RIGHT);
  20 }
  21
  22 // This table, used by DomKeyToKeyboardCode(), maps DOM Level 3 .code
  23 // values to legacy Windows-based VKEY values, where the VKEYs are
  24 // interpreted positionally.
  25 const struct DomCodeToKeyboardCodeEntry {
  26   DomCode dom_code;
  27   KeyboardCode key_code;
  28 } dom_code_to_keyboard_code[] = {
  29     // Entries are ordered by numeric value of the DomCode enum,
  30     // which is the USB physical key code.
  31     // DomCode::HYPER                              0x000010 Hyper
  32     // DomCode::SUPER                              0x000011 Super
  33     // DomCode::FN                                 0x000012 Fn
  34     // DomCode::FN_LOCK                            0x000013 FLock
  35     // DomCode::SUSPEND                            0x000014 Suspend
  36     // DomCode::RESUME                             0x000015 Resume
  37     // DomCode::TURBO                              0x000016 Turbo
  38     {DomCode::SLEEP, VKEY_SLEEP},  // 0x010082 Sleep
  39     // DomCode::WAKE_UP                            0x010083 WakeUp
  40     {DomCode::KEY_A, VKEY_A},              // 0x070004 KeyA
  41     {DomCode::KEY_B, VKEY_B},              // 0x070005 KeyB
  42     {DomCode::KEY_C, VKEY_C},              // 0x070006 KeyC
  43     {DomCode::KEY_D, VKEY_D},              // 0x070007 KeyD
  44     {DomCode::KEY_E, VKEY_E},              // 0x070008 KeyE
  45     {DomCode::KEY_F, VKEY_F},              // 0x070009 KeyF
  46     {DomCode::KEY_G, VKEY_G},              // 0x07000A KeyG
  47     {DomCode::KEY_H, VKEY_H},              // 0x07000B KeyH
  48     {DomCode::KEY_I, VKEY_I},              // 0x07000C KeyI
  49     {DomCode::KEY_J, VKEY_J},              // 0x07000D KeyJ
  50     {DomCode::KEY_K, VKEY_K},              // 0x07000E KeyK
  51     {DomCode::KEY_L, VKEY_L},              // 0x07000F KeyL
  52     {DomCode::KEY_M, VKEY_M},              // 0x070010 KeyM
  53     {DomCode::KEY_N, VKEY_N},              // 0x070011 KeyN
  54     {DomCode::KEY_O, VKEY_O},              // 0x070012 KeyO
  55     {DomCode::KEY_P, VKEY_P},              // 0x070013 KeyP
  56     {DomCode::KEY_Q, VKEY_Q},              // 0x070014 KeyQ
  57     {DomCode::KEY_R, VKEY_R},              // 0x070015 KeyR
  58     {DomCode::KEY_S, VKEY_S},              // 0x070016 KeyS
  59     {DomCode::KEY_T, VKEY_T},              // 0x070017 KeyT
  60     {DomCode::KEY_U, VKEY_U},              // 0x070018 KeyU
  61     {DomCode::KEY_V, VKEY_V},              // 0x070019 KeyV
  62     {DomCode::KEY_W, VKEY_W},              // 0x07001A KeyW
  63     {DomCode::KEY_X, VKEY_X},              // 0x07001B KeyX
  64     {DomCode::KEY_Y, VKEY_Y},              // 0x07001C KeyY
  65     {DomCode::KEY_Z, VKEY_Z},              // 0x07001D KeyZ
  66     {DomCode::DIGIT1, VKEY_1},             // 0x07001E Digit1
  67     {DomCode::DIGIT2, VKEY_2},             // 0x07001F Digit2
  68     {DomCode::DIGIT3, VKEY_3},             // 0x070020 Digit3
  69     {DomCode::DIGIT4, VKEY_4},             // 0x070021 Digit4
  70     {DomCode::DIGIT5, VKEY_5},             // 0x070022 Digit5
  71     {DomCode::DIGIT6, VKEY_6},             // 0x070023 Digit6
  72     {DomCode::DIGIT7, VKEY_7},             // 0x070024 Digit7
  73     {DomCode::DIGIT8, VKEY_8},             // 0x070025 Digit8
  74     {DomCode::DIGIT9, VKEY_9},             // 0x070026 Digit9
  75     {DomCode::DIGIT0, VKEY_0},             // 0x070027 Digit0
  76     {DomCode::ENTER, VKEY_RETURN},         // 0x070028 Enter
  77     {DomCode::ESCAPE, VKEY_ESCAPE},        // 0x070029 Escape
  78     {DomCode::BACKSPACE, VKEY_BACK},       // 0x07002A Backspace
  79     {DomCode::TAB, VKEY_TAB},              // 0x07002B Tab
  80     {DomCode::SPACE, VKEY_SPACE},          // 0x07002C Space
  81     {DomCode::MINUS, VKEY_OEM_MINUS},      // 0x07002D Minus
  82     {DomCode::EQUAL, VKEY_OEM_PLUS},       // 0x07002E Equal
  83     {DomCode::BRACKET_LEFT, VKEY_OEM_4},   // 0x07002F BracketLeft
  84     {DomCode::BRACKET_RIGHT, VKEY_OEM_6},  // 0x070030 BracketRight
  85     {DomCode::BACKSLASH, VKEY_OEM_5},      // 0x070031 Backslash
  86     // DomCode::INTL_HASH, VKEY_OEM_5           // 0x070032 IntlHash
  87     {DomCode::SEMICOLON, VKEY_OEM_1},           // 0x070033 Semicolon
  88     {DomCode::QUOTE, VKEY_OEM_7},               // 0x070034 Quote
  89     {DomCode::BACKQUOTE, VKEY_OEM_3},           // 0x070035 Backquote
  90     {DomCode::COMMA, VKEY_OEM_COMMA},           // 0x070036 Comma
  91     {DomCode::PERIOD, VKEY_OEM_PERIOD},         // 0x070037 Period
  92     {DomCode::SLASH, VKEY_OEM_2},               // 0x070038 Slash
  93     {DomCode::CAPS_LOCK, VKEY_CAPITAL},         // 0x070039 CapsLock
  94     {DomCode::F1, VKEY_F1},                     // 0x07003A F1
  95     {DomCode::F2, VKEY_F2},                     // 0x07003B F2
  96     {DomCode::F3, VKEY_F3},                     // 0x07003C F3
  97     {DomCode::F4, VKEY_F4},                     // 0x07003D F4
  98     {DomCode::F5, VKEY_F5},                     // 0x07003E F5
  99     {DomCode::F6, VKEY_F6},                     // 0x07003F F6
 100     {DomCode::F7, VKEY_F7},                     // 0x070040 F7
 101     {DomCode::F8, VKEY_F8},                     // 0x070041 F8
 102     {DomCode::F9, VKEY_F9},                     // 0x070042 F9
 103     {DomCode::F10, VKEY_F10},                   // 0x070043 F10
 104     {DomCode::F11, VKEY_F11},                   // 0x070044 F11
 105     {DomCode::F12, VKEY_F12},                   // 0x070045 F12
 106     {DomCode::PRINT_SCREEN, VKEY_SNAPSHOT},     // 0x070046 PrintScreen
 107     {DomCode::SCROLL_LOCK, VKEY_SCROLL},        // 0x070047 ScrollLock
 108     {DomCode::PAUSE, VKEY_PAUSE},               // 0x070048 Pause
 109     {DomCode::INSERT, VKEY_INSERT},             // 0x070049 Insert
 110     {DomCode::HOME, VKEY_HOME},                 // 0x07004A Home
 111     {DomCode::PAGE_UP, VKEY_PRIOR},             // 0x07004B PageUp
 112     {DomCode::DEL, VKEY_DELETE},                // 0x07004C Delete
 113     {DomCode::END, VKEY_END},                   // 0x07004D End
 114     {DomCode::PAGE_DOWN, VKEY_NEXT},            // 0x07004E PageDown
 115     {DomCode::ARROW_RIGHT, VKEY_RIGHT},         // 0x07004F ArrowRight
 116     {DomCode::ARROW_LEFT, VKEY_LEFT},           // 0x070050 ArrowLeft
 117     {DomCode::ARROW_DOWN, VKEY_DOWN},           // 0x070051 ArrowDown
 118     {DomCode::ARROW_UP, VKEY_UP},               // 0x070052 ArrowUp
 119     {DomCode::NUM_LOCK, VKEY_NUMLOCK},          // 0x070053 NumLock
 120     {DomCode::NUMPAD_DIVIDE, VKEY_DIVIDE},      // 0x070054 NumpadDivide
 121     {DomCode::NUMPAD_MULTIPLY, VKEY_MULTIPLY},  // 0x070055 NumpadMultiply
 122     {DomCode::NUMPAD_SUBTRACT, VKEY_SUBTRACT},  // 0x070056 NumpadSubtract
 123     {DomCode::NUMPAD_ADD, VKEY_ADD},            // 0x070057 NumpadAdd
 124     {DomCode::NUMPAD_ENTER, VKEY_RETURN},       // 0x070058 NumpadEnter
 125     {DomCode::NUMPAD1, VKEY_NUMPAD1},           // 0x070059 Numpad1
 126     {DomCode::NUMPAD2, VKEY_NUMPAD2},           // 0x07005A Numpad2
 127     {DomCode::NUMPAD3, VKEY_NUMPAD3},           // 0x07005B Numpad3
 128     {DomCode::NUMPAD4, VKEY_NUMPAD4},           // 0x07005C Numpad4
 129     {DomCode::NUMPAD5, VKEY_NUMPAD5},           // 0x07005D Numpad5
 130     {DomCode::NUMPAD6, VKEY_NUMPAD6},           // 0x07005E Numpad6
 131     {DomCode::NUMPAD7, VKEY_NUMPAD7},           // 0x07005F Numpad7
 132     {DomCode::NUMPAD8, VKEY_NUMPAD8},           // 0x070060 Numpad8
 133     {DomCode::NUMPAD9, VKEY_NUMPAD9},           // 0x070061 Numpad9
 134     {DomCode::NUMPAD0, VKEY_NUMPAD0},           // 0x070062 Numpad0
 135     {DomCode::NUMPAD_DECIMAL, VKEY_DECIMAL},    // 0x070063 NumpadDecimal
 136     {DomCode::INTL_BACKSLASH, VKEY_OEM_102},    // 0x070064 IntlBackslash
 137     {DomCode::CONTEXT_MENU, VKEY_APPS},         // 0x070065 ContextMenu
 138     {DomCode::POWER, VKEY_POWER},               // 0x070066 Power
 139     // DomCode::NUMPAD_EQUAL                       0x070067 NumpadEqual
 140     // DomCode::OPEN                               0x070074 Open
 141     {DomCode::HELP, VKEY_HELP},      // 0x070075 Help
 142     {DomCode::SELECT, VKEY_SELECT},  // 0x070077 Select
 143     // DomCode::AGAIN                             0x070079 Again
 144     // DomCode::UNDO                              0x07007A Undo
 145     // DomCode::CUT                               0x07007B Cut
 146     // DomCode::COPY                              0x07007C Copy
 147     // DomCode::PASTE                             0x07007D Paste
 148     // DomCode::FIND                              0x07007E Find
 149     {DomCode::VOLUME_MUTE, VKEY_VOLUME_MUTE},  // 0x07007F VolumeMute
 150     {DomCode::VOLUME_UP, VKEY_VOLUME_UP},      // 0x070080 VolumeUp
 151     {DomCode::VOLUME_DOWN, VKEY_VOLUME_DOWN},  // 0x070081 VolumeDown
 152     {DomCode::NUMPAD_COMMA, VKEY_OEM_COMMA},   // 0x070085 NumpadComma
 153     {DomCode::INTL_RO, VKEY_OEM_102},          // 0x070087 IntlRo
 154     {DomCode::KANA_MODE, VKEY_KANA},           // 0x070088 KanaMode
 155     {DomCode::INTL_YEN, VKEY_OEM_5},           // 0x070089 IntlYen
 156     {DomCode::CONVERT, VKEY_CONVERT},          // 0x07008A Convert
 157     {DomCode::NON_CONVERT, VKEY_NONCONVERT},   // 0x07008B NonConvert
 158     {DomCode::LANG1, VKEY_KANA},               // 0x070090 Lang1
 159     {DomCode::LANG2, VKEY_KANJI},              // 0x070091 Lang2
 160     // DomCode::LANG3                             0x070092 Lang3
 161     // DomCode::LANG4                             0x070093 Lang4
 162     // DomCode::LANG5                             0x070094 Lang5
 163     // DomCode::ABORT                             0x07009B Abort
 164     // DomCode::PROPS                             0x0700A3 Props
 165     // DomCode::NUMPAD_PAREN_LEFT                 0x0700B6 NumpadParenLeft
 166     // DomCode::NUMPAD_PAREN_RIGHT                0x0700B7 NumpadParenRight
 167     {DomCode::NUMPAD_BACKSPACE, VKEY_BACK},  // 0x0700BB NumpadBackspace
 168     // DomCode::NUMPAD_MEMORY_STORE                0x0700D0 NumpadMemoryStore
 169     // DomCode::NUMPAD_MEMORY_RECALL               0x0700D1 NumpadMemoryRecall
 170     // DomCode::NUMPAD_MEMORY_CLEAR                0x0700D2 NumpadMemoryClear
 171     // DomCode::NUMPAD_MEMORY_ADD                  0x0700D3 NumpadMemoryAdd
 172     // DomCode::NUMPAD_MEMORY_SUBTRACT             0x0700D4
 173     // NumpadMemorySubtract
 174     {DomCode::NUMPAD_CLEAR, VKEY_CLEAR},        // 0x0700D8 NumpadClear
 175     {DomCode::NUMPAD_CLEAR_ENTRY, VKEY_CLEAR},  // 0x0700D9 NumpadClearEntry
 176     {DomCode::CONTROL_LEFT, VKEY_LCONTROL},     // 0x0700E0 ControlLeft
 177     {DomCode::SHIFT_LEFT, VKEY_LSHIFT},         // 0x0700E1 ShiftLeft
 178     {DomCode::ALT_LEFT, VKEY_LMENU},            // 0x0700E2 AltLeft
 179     {DomCode::OS_LEFT, VKEY_LWIN},              // 0x0700E3 OSLeft
 180     {DomCode::CONTROL_RIGHT, VKEY_RCONTROL},    // 0x0700E4 ControlRight
 181     {DomCode::SHIFT_RIGHT, VKEY_RSHIFT},        // 0x0700E5 ShiftRight
 182     {DomCode::ALT_RIGHT, VKEY_RMENU},           // 0x0700E6 AltRight
 183     {DomCode::OS_RIGHT, VKEY_RWIN},             // 0x0700E7 OSRight
 184     {DomCode::MEDIA_TRACK_NEXT,
 185      VKEY_MEDIA_NEXT_TRACK},  // 0x0C00B5 MediaTrackNext
 186     {DomCode::MEDIA_TRACK_PREVIOUS,
 187      VKEY_MEDIA_PREV_TRACK},                 // 0x0C00B6 MediaTrackPrevious
 188     {DomCode::MEDIA_STOP, VKEY_MEDIA_STOP},  // 0x0C00B7 MediaStop
 189     // DomCode::EJECT                           0x0C00B8 Eject
 190     {DomCode::MEDIA_PLAY_PAUSE,
 191      VKEY_MEDIA_PLAY_PAUSE},  // 0x0C00CD MediaPlayPause
 192     {DomCode::MEDIA_SELECT,
 193      VKEY_MEDIA_LAUNCH_MEDIA_SELECT},                // 0x0C0183 MediaSelect
 194     {DomCode::LAUNCH_MAIL, VKEY_MEDIA_LAUNCH_MAIL},  // 0x0C018A LaunchMail
 195     {DomCode::LAUNCH_APP2, VKEY_MEDIA_LAUNCH_APP2},  // 0x0C0192 LaunchApp2
 196     {DomCode::LAUNCH_APP1, VKEY_MEDIA_LAUNCH_APP1},  // 0x0C0194 LaunchApp1
 197     {DomCode::BROWSER_SEARCH, VKEY_BROWSER_SEARCH},  // 0x0C0221 BrowserSearch
 198     {DomCode::BROWSER_HOME, VKEY_BROWSER_HOME},      // 0x0C0223 BrowserHome
 199     {DomCode::BROWSER_BACK, VKEY_BROWSER_BACK},      // 0x0C0224 BrowserBack
 200     {DomCode::BROWSER_FORWARD,
 201      VKEY_BROWSER_FORWARD},                      // 0x0C0225 BrowserForward
 202     {DomCode::BROWSER_STOP, VKEY_BROWSER_STOP},  // 0x0C0226 BrowserStop
 203     {DomCode::BROWSER_REFRESH,
 204      VKEY_BROWSER_REFRESH},  // 0x0C0227 BrowserRefresh
 205     {DomCode::BROWSER_FAVORITES,
 206      VKEY_BROWSER_FAVORITES},  // 0x0C022A BrowserFavorites
 207 };
 208
 209 }  // anonymous namespace
 210
 211 // Returns a Windows-based VKEY for a non-printable DOM Level 3 |key|.
 212 // The returned VKEY is non-positional (e.g. VKEY_SHIFT).
 213 KeyboardCode NonPrintableDomKeyToKeyboardCode(DomKey dom_key) {
 214   switch (dom_key) {
 215     // No value.
 216     case DomKey::NONE:
 217       return VKEY_UNKNOWN;
 218     // Character values.
 219     // Special Key Values
 220     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-special
 221     case DomKey::UNIDENTIFIED:
 222       return VKEY_UNKNOWN;
 223     // Modifier Keys
 224     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-modifier
 225     case DomKey::ALT:
 226       return VKEY_MENU;
 227     case DomKey::ALT_GRAPH:
 228       return VKEY_ALTGR;
 229     case DomKey::CAPS_LOCK:
 230       return VKEY_CAPITAL;
 231     case DomKey::CONTROL:
 232       return VKEY_CONTROL;
 233     case DomKey::NUM_LOCK:
 234       return VKEY_NUMLOCK;
 235     case DomKey::OS:
 236       return VKEY_LWIN;
 237     case DomKey::SCROLL_LOCK:
 238       return VKEY_SCROLL;
 239     case DomKey::SHIFT:
 240       return VKEY_SHIFT;
 241     // Whitespace Keys
 242     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-whitespace
 243     case DomKey::ENTER:
 244       return VKEY_RETURN;
 245     case DomKey::SEPARATOR:
 246       return VKEY_SEPARATOR;
 247     case DomKey::TAB:
 248       return VKEY_TAB;
 249     // Navigation Keys
 250     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-navigation
 251     case DomKey::ARROW_DOWN:
 252       return VKEY_DOWN;
 253     case DomKey::ARROW_LEFT:
 254       return VKEY_LEFT;
 255     case DomKey::ARROW_RIGHT:
 256       return VKEY_RIGHT;
 257     case DomKey::ARROW_UP:
 258       return VKEY_UP;
 259     case DomKey::END:
 260       return VKEY_END;
 261     case DomKey::HOME:
 262       return VKEY_HOME;
 263     case DomKey::PAGE_DOWN:
 264       return VKEY_NEXT;
 265     case DomKey::PAGE_UP:
 266       return VKEY_PRIOR;
 267     // Editing Keys
 268     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-editing
 269     case DomKey::BACKSPACE:
 270       return VKEY_BACK;
 271     case DomKey::CLEAR:
 272       return VKEY_CLEAR;
 273     case DomKey::CR_SEL:
 274       return VKEY_CRSEL;
 275     case DomKey::DEL:
 276       return VKEY_DELETE;
 277     case DomKey::ERASE_EOF:
 278       return VKEY_EREOF;
 279     case DomKey::EX_SEL:
 280       return VKEY_EXSEL;
 281     case DomKey::INSERT:
 282       return VKEY_INSERT;
 283     // UI Keys
 284     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-ui
 285     case DomKey::ACCEPT:
 286       return VKEY_ACCEPT;
 287     case DomKey::ATTN:
 288       return VKEY_ATTN;
 289     case DomKey::CONTEXT_MENU:
 290       return VKEY_APPS;
 291     case DomKey::ESCAPE:
 292       return VKEY_ESCAPE;
 293     case DomKey::EXECUTE:
 294       return VKEY_EXECUTE;
 295     case DomKey::HELP:
 296       return VKEY_HELP;
 297     case DomKey::PAUSE:
 298       return VKEY_PAUSE;
 299     case DomKey::PLAY:
 300       return VKEY_PLAY;
 301     case DomKey::SELECT:
 302       return VKEY_SELECT;
 303     // Device Keys
 304     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-device
 305     case DomKey::BRIGHTNESS_DOWN:
 306       return VKEY_BRIGHTNESS_DOWN;
 307     case DomKey::BRIGHTNESS_UP:
 308       return VKEY_BRIGHTNESS_UP;
 309     case DomKey::POWER:
 310       return VKEY_POWER;
 311     case DomKey::PRINT_SCREEN:
 312       return VKEY_SNAPSHOT;
 313 // IME and Composition Keys
 314 // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-composition
 315 #if 0  // TODO(kpschoedel)
 316     case DomKey::COMPOSE:
 317       return VKEY_COMPOSE;
 318 #endif
 319     case DomKey::CONVERT:
 320       return VKEY_CONVERT;
 321     case DomKey::FINAL_MODE:
 322       return VKEY_FINAL;
 323     case DomKey::MODE_CHANGE:
 324       return VKEY_MODECHANGE;
 325     case DomKey::NON_CONVERT:
 326       return VKEY_NONCONVERT;
 327     case DomKey::PROCESS:
 328       return VKEY_PROCESSKEY;
 329     // Keys specific to Korean keyboards
 330     case DomKey::HANGUL_MODE:
 331       return VKEY_HANGUL;
 332     case DomKey::HANJA_MODE:
 333       return VKEY_HANJA;
 334     case DomKey::JUNJA_MODE:
 335       return VKEY_JUNJA;
 336     // Keys specific to Japanese keyboards
 337     case DomKey::HANKAKU:
 338       return VKEY_DBE_SBCSCHAR;
 339     case DomKey::KANA_MODE:
 340       return VKEY_KANA;
 341     case DomKey::KANJI_MODE:
 342       return VKEY_KANJI;
 343     case DomKey::ZENKAKU:
 344       return VKEY_DBE_DBCSCHAR;
 345     case DomKey::ZENKAKU_HANKAKU:
 346       return VKEY_DBE_DBCSCHAR;
 347     // General-Purpose Function Keys
 348     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-function
 349     case DomKey::F1:
 350       return VKEY_F1;
 351     case DomKey::F2:
 352       return VKEY_F2;
 353     case DomKey::F3:
 354       return VKEY_F3;
 355     case DomKey::F4:
 356       return VKEY_F4;
 357     case DomKey::F5:
 358       return VKEY_F5;
 359     case DomKey::F6:
 360       return VKEY_F6;
 361     case DomKey::F7:
 362       return VKEY_F7;
 363     case DomKey::F8:
 364       return VKEY_F8;
 365     case DomKey::F9:
 366       return VKEY_F9;
 367     case DomKey::F10:
 368       return VKEY_F10;
 369     case DomKey::F11:
 370       return VKEY_F11;
 371     case DomKey::F12:
 372       return VKEY_F12;
 373     case DomKey::F13:
 374       return VKEY_F13;
 375     case DomKey::F14:
 376       return VKEY_F14;
 377     case DomKey::F15:
 378       return VKEY_F15;
 379     case DomKey::F16:
 380       return VKEY_F16;
 381     case DomKey::F17:
 382       return VKEY_F17;
 383     case DomKey::F18:
 384       return VKEY_F18;
 385     case DomKey::F19:
 386       return VKEY_F19;
 387     case DomKey::F20:
 388       return VKEY_F20;
 389     case DomKey::F21:
 390       return VKEY_F21;
 391     case DomKey::F22:
 392       return VKEY_F22;
 393     case DomKey::F23:
 394       return VKEY_F23;
 395     case DomKey::F24:
 396       return VKEY_F24;
 397     // Multimedia Keys
 398     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-multimedia
 399     case DomKey::MEDIA_PLAY_PAUSE:
 400       return VKEY_MEDIA_PLAY_PAUSE;
 401     case DomKey::MEDIA_SELECT:
 402       return VKEY_MEDIA_LAUNCH_MEDIA_SELECT;
 403     case DomKey::MEDIA_STOP:
 404       return VKEY_MEDIA_STOP;
 405     case DomKey::MEDIA_TRACK_NEXT:
 406       return VKEY_MEDIA_NEXT_TRACK;
 407     case DomKey::MEDIA_TRACK_PREVIOUS:
 408       return VKEY_MEDIA_PREV_TRACK;
 409     case DomKey::PRINT:
 410       return VKEY_PRINT;
 411     case DomKey::VOLUME_DOWN:
 412       return VKEY_VOLUME_DOWN;
 413     case DomKey::VOLUME_MUTE:
 414       return VKEY_VOLUME_MUTE;
 415     case DomKey::VOLUME_UP:
 416       return VKEY_VOLUME_UP;
 417     // Application Keys
 418     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-apps
 419     case DomKey::LAUNCH_CALCULATOR:
 420       return VKEY_MEDIA_LAUNCH_APP2;
 421     case DomKey::LAUNCH_MAIL:
 422       return VKEY_MEDIA_LAUNCH_MAIL;
 423     case DomKey::LAUNCH_MY_COMPUTER:
 424       return VKEY_MEDIA_LAUNCH_APP1;
 425     // Browser Keys
 426     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-browser
 427     case DomKey::BROWSER_BACK:
 428       return VKEY_BACK;
 429     case DomKey::BROWSER_FAVORITES:
 430       return VKEY_BROWSER_FAVORITES;
 431     case DomKey::BROWSER_FORWARD:
 432       return VKEY_BROWSER_FORWARD;
 433     case DomKey::BROWSER_HOME:
 434       return VKEY_BROWSER_HOME;
 435     case DomKey::BROWSER_REFRESH:
 436       return VKEY_BROWSER_REFRESH;
 437     case DomKey::BROWSER_SEARCH:
 438       return VKEY_BROWSER_SEARCH;
 439     case DomKey::BROWSER_STOP:
 440       return VKEY_BROWSER_STOP;
 441     // Media Controller Keys
 442     // http://www.w3.org/TR/DOM-Level-3-Events-key/#keys-media-controller
 443     case DomKey::ZOOM_TOGGLE:
 444       return VKEY_ZOOM;
 445     // No value.
 446     default:
 447       return VKEY_UNKNOWN;
 448   }
 449 }
 450
 451 // Returns the Windows-based VKEY value corresponding to a DOM Level 3 |code|.
 452 // The returned VKEY is located (e.g. VKEY_LSHIFT).
 453 KeyboardCode DomCodeToKeyboardCode(DomCode dom_code) {
 454   const DomCodeToKeyboardCodeEntry* end =
 455       dom_code_to_keyboard_code + arraysize(dom_code_to_keyboard_code);
 456   const DomCodeToKeyboardCodeEntry* found =
 457       std::lower_bound(dom_code_to_keyboard_code, end, dom_code,
 458                        [](const DomCodeToKeyboardCodeEntry& a, DomCode b) {
 459         return static_cast<int>(a.dom_code) < static_cast<int>(b);
 460       });
 461   if ((found != end) && (found->dom_code == dom_code))
 462     return found->key_code;
 463   return VKEY_UNKNOWN;
 464 }
 465
 466 // Returns the Windows-based VKEY value corresponding to a DOM Level 3 |code|.
 467 // The returned VKEY is non-located (e.g. VKEY_SHIFT).
 468 KeyboardCode DomCodeToNonLocatedKeyboardCode(DomCode dom_code) {
 469   return NonLocatedKeyboardCode(DomCodeToKeyboardCode(dom_code));
 470 }
 471
 472 // Determine the non-located VKEY corresponding to a located VKEY.
 473 KeyboardCode NonLocatedKeyboardCode(KeyboardCode key_code) {
 474   switch (key_code) {
 475     case VKEY_RWIN:
 476       return VKEY_LWIN;
 477     case VKEY_LSHIFT:
 478     case VKEY_RSHIFT:
 479       return VKEY_SHIFT;
 480     case VKEY_LCONTROL:
 481     case VKEY_RCONTROL:
 482       return VKEY_CONTROL;
 483     case VKEY_LMENU:
 484     case VKEY_RMENU:
 485       return VKEY_MENU;
 486     default:
 487       return key_code;
 488   }
 489 }
 490
 491 // Determine the located VKEY corresponding to a non-located VKEY.
 492 KeyboardCode LocatedKeyboardCode(KeyboardCode key_code, DomCode dom_code) {
 493   switch (key_code) {
 494     case VKEY_SHIFT:
 495       return IsRightSideDomCode(dom_code) ? VKEY_RSHIFT : VKEY_LSHIFT;
 496     case VKEY_CONTROL:
 497       return IsRightSideDomCode(dom_code) ? VKEY_RCONTROL : VKEY_LCONTROL;
 498     case VKEY_MENU:
 499       return IsRightSideDomCode(dom_code) ? VKEY_RMENU : VKEY_LMENU;
 500     case VKEY_LWIN:
 501       return IsRightSideDomCode(dom_code) ? VKEY_RWIN : VKEY_LWIN;
 502     case VKEY_0:
 503       return (dom_code == DomCode::NUMPAD0) ? VKEY_NUMPAD0 : VKEY_0;
 504     case VKEY_1:
 505       return (dom_code == DomCode::NUMPAD1) ? VKEY_NUMPAD1 : VKEY_1;
 506     case VKEY_2:
 507       return (dom_code == DomCode::NUMPAD2) ? VKEY_NUMPAD2 : VKEY_2;
 508     case VKEY_3:
 509       return (dom_code == DomCode::NUMPAD3) ? VKEY_NUMPAD3 : VKEY_3;
 510     case VKEY_4:
 511       return (dom_code == DomCode::NUMPAD4) ? VKEY_NUMPAD4 : VKEY_4;
 512     case VKEY_5:
 513       return (dom_code == DomCode::NUMPAD5) ? VKEY_NUMPAD5 : VKEY_5;
 514     case VKEY_6:
 515       return (dom_code == DomCode::NUMPAD6) ? VKEY_NUMPAD6 : VKEY_6;
 516     case VKEY_7:
 517       return (dom_code == DomCode::NUMPAD7) ? VKEY_NUMPAD7 : VKEY_7;
 518     case VKEY_8:
 519       return (dom_code == DomCode::NUMPAD8) ? VKEY_NUMPAD8 : VKEY_8;
 520     case VKEY_9:
 521       return (dom_code == DomCode::NUMPAD9) ? VKEY_NUMPAD9 : VKEY_9;
 522     default:
 523       return key_code;
 524   }
 525 }
 526
 527 bool LookupControlCharacter(DomCode dom_code,
 528                             int flags,
 529                             DomKey* dom_key,
 530                             base::char16* character,
 531                             KeyboardCode* key_code) {
 532   if ((flags & EF_CONTROL_DOWN) == 0)
 533     return false;
 534
 535   int code = static_cast<int>(dom_code);
 536   const int kKeyA = static_cast<int>(DomCode::KEY_A);
 537   // Control-A - Control-Z map to 0x01 - 0x1A.
 538   if (code >= kKeyA && code <= static_cast<int>(DomCode::KEY_Z)) {
 539     *character = static_cast<base::char16>(code - kKeyA + 1);
 540     *key_code = static_cast<KeyboardCode>(code - kKeyA + VKEY_A);
 541     switch (dom_code) {
 542       case DomCode::KEY_H:
 543         *dom_key = DomKey::BACKSPACE;
 544       case DomCode::KEY_I:
 545         *dom_key = DomKey::TAB;
 546       case DomCode::KEY_M:
 547         *dom_key = DomKey::ENTER;
 548       default:
 549         *dom_key = DomKey::CHARACTER;
 550     }
 551     return true;
 552   }
 553
 554   switch (dom_code) {
 555     case DomCode::DIGIT2:
 556       // NUL
 557       *character = 0;
 558       *dom_key = DomKey::CHARACTER;
 559       *key_code = VKEY_2;
 560       return true;
 561     case DomCode::ENTER:
 562       // NL
 563       *character = 0x0A;
 564       *dom_key = DomKey::CHARACTER;
 565       *key_code = VKEY_RETURN;
 566       return true;
 567     case DomCode::BRACKET_LEFT:
 568       // ESC
 569       *character = 0x1B;
 570       *dom_key = DomKey::ESCAPE;
 571       *key_code = VKEY_OEM_4;
 572       return true;
 573     case DomCode::BACKSLASH:
 574       // FS
 575       *character = 0x1C;
 576       *dom_key = DomKey::CHARACTER;
 577       *key_code = VKEY_OEM_5;
 578       return true;
 579     case DomCode::BRACKET_RIGHT:
 580       // GS
 581       *character = 0x1D;
 582       *dom_key = DomKey::CHARACTER;
 583       *key_code = VKEY_OEM_6;
 584       return true;
 585     case DomCode::DIGIT6:
 586       // RS
 587       *character = 0x1E;
 588       *dom_key = DomKey::CHARACTER;
 589       *key_code = VKEY_6;
 590       return true;
 591     case DomCode::MINUS:
 592       // US
 593       *character = 0x1F;
 594       *dom_key = DomKey::CHARACTER;
 595       *key_code = VKEY_OEM_MINUS;
 596       return true;
 597     default:
 598       return false;
 599   }
 600 }
 601
 602 int ModifierDomKeyToEventFlag(DomKey key) {
 603   switch (key) {
 604     case DomKey::ALT:
 605       return EF_ALT_DOWN;
 606     case DomKey::ALT_GRAPH:
 607       return EF_ALTGR_DOWN;
 608     case DomKey::CAPS_LOCK:
 609       return EF_CAPS_LOCK_DOWN;
 610     case DomKey::CONTROL:
 611       return EF_CONTROL_DOWN;
 612     case DomKey::HYPER:
 613       return EF_MOD3_DOWN;
 614     case DomKey::META:
 615       return EF_ALT_DOWN;
 616     case DomKey::OS:
 617       return EF_COMMAND_DOWN;
 618     case DomKey::SHIFT:
 619       return EF_SHIFT_DOWN;
 620     case DomKey::SUPER:
 621       return EF_MOD3_DOWN;
 622     default:
 623       return EF_NONE;
 624   }
 625   // Not represented:
 626   //   DomKey::ACCEL
 627   //   DomKey::FN
 628   //   DomKey::FN_LOCK
 629   //   DomKey::NUM_LOCK
 630   //   DomKey::SCROLL_LOCK
 631   //   DomKey::SYMBOL
 632   //   DomKey::SYMBOL_LOCK
 633 }
 634
 635 }  // namespace ui