Remoes X11 dependency in InputMethodEngine.

ui/base/ime/chromeos/ime_keymap.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/ime/chromeos/ime_keymap.h"
 
-#define XK_MISCELLANY
-#include <X11/keysymdef.h>
-#include <X11/XF86keysym.h>
+#include <map>
+
+#include "base/lazy_instance.h"
 
 namespace ui {
 
-std::string FromXKeycodeToKeyValue(int keyval) {
-  // TODO: Ensure all keys are supported.
-  switch (keyval) {
-    case XK_Escape:
-      return "Esc";
-    case XK_F1:
-    case XF86XK_Back:
-      return "HistoryBack";
-    case XK_F2:
-    case XF86XK_Forward:
-      return "HistoryForward";
-    case XK_F3:
-    case XF86XK_Reload:
-      return "BrowserRefresh";
-    case XK_F4:
-    case XF86XK_LaunchB:
-      return "ChromeOSFullscreen";  // TODO: Check this value
-    case XK_F5:
-    case XF86XK_LaunchA:
-      return "ChromeOSSwitchWindow";  // TODO: Check this value
-    case XK_F6:
-    case XF86XK_MonBrightnessDown:
-      return "BrightnessDown";
-    case XK_F7:
-    case XF86XK_MonBrightnessUp:
-      return "BrightnessUp";
-    case XK_F8:
-    case XF86XK_AudioMute:
-      return "AudioVolumeMute";
-    case XK_F9:
-    case XF86XK_AudioLowerVolume:
-      return "AudioVolumeDown";
-    case XK_F10:
-    case XF86XK_AudioRaiseVolume:
-      return "AudioVolumeUp";
-    case XK_BackSpace:
-      return "Backspace";
-    case XK_Delete:
-    case XK_KP_Delete:
-      return "Delete";
-    case XK_Tab:
-      return "Tab";
-    case XK_KP_Enter:
-    case XK_Return:
-      return "Enter";
-    case XK_Meta_L:
-      return "BrowserSearch";
-    case XK_Up:
-    case XK_KP_Up:
-      return "Up";
-    case XK_Down:
-    case XK_KP_Down:
-      return "Down";
-    case XK_Left:
-    case XK_KP_Left:
-      return "Left";
-    case XK_Right:
-    case XK_KP_Right:
-      return "Right";
-    case XK_Page_Up:
-      return "PageUp";
-    case XK_Page_Down:
-      return "PageDown";
-    case XK_Home:
-      return "Home";
-    case XK_End:
-      return "End";
-    case XK_Shift_L:
-    case XK_Shift_R:
-      return "Shift";
-    case XK_Alt_L:
-    case XK_Alt_R:
-      return "Alt";
-    case XK_Control_L:
-    case XK_Control_R:
-      return "Ctrl";
-    case XK_Caps_Lock:
-      return "CapsLock";
-    default: {
-      // TODO: Properly support unicode characters.
-      char value[2];
-      value[0] = keyval;
-      value[1] = '\0';
-      return value;
-    }
+namespace {
+
+const struct KeyCodeTable {
+  KeyboardCode keyboard_code;
+  const char* dom_code;
+} kKeyCodeTable[] = {
+  {VKEY_BACK, "Backspace"},
+  {VKEY_TAB, "Tab"},
+  {VKEY_RETURN, "Enter"},
+  {VKEY_MENU, "ContextMenu"},
+  {VKEY_PAUSE, "Pause"},
+  {VKEY_CAPITAL, "CapsLock"},
+  {VKEY_KANA, "KanaMode"},
+  {VKEY_HANGUL, "HangulMode"},
+  {VKEY_HANJA, "Hanja"},
+  {VKEY_KANJI, "Kanji"},
+  {VKEY_ESCAPE, "Escape"},
+  {VKEY_CONVERT, "Convert"},
+  {VKEY_NONCONVERT, "NoConvert"},
+  {VKEY_SPACE, "Space"},
+  {VKEY_END, "End"},
+  {VKEY_HOME, "Home"},
+  {VKEY_LEFT, "ArrowLeft"},
+  {VKEY_UP, "ArrowUp"},
+  {VKEY_RIGHT, "ArrowRight"},
+  {VKEY_DOWN, "ArrowDown"},
+  {VKEY_PRINT, "PrintScreen"},
+  {VKEY_INSERT, "Insert"},
+  {VKEY_DELETE, "Delete"},
+  {VKEY_HELP, "Help"},
+  {VKEY_0, "Digit0"},
+  {VKEY_1, "Digit1"},
+  {VKEY_2, "Digit2"},
+  {VKEY_3, "Digit3"},
+  {VKEY_4, "Digit4"},
+  {VKEY_5, "Digit5"},
+  {VKEY_6, "Digit6"},
+  {VKEY_7, "Digit7"},
+  {VKEY_8, "Digit8"},
+  {VKEY_9, "Digit9"},
+  {VKEY_A, "KeyA"},
+  {VKEY_B, "KeyB"},
+  {VKEY_C, "KeyC"},
+  {VKEY_D, "KeyD"},
+  {VKEY_E, "KeyE"},
+  {VKEY_F, "KeyF"},
+  {VKEY_G, "KeyG"},
+  {VKEY_H, "KeyH"},
+  {VKEY_I, "KeyI"},
+  {VKEY_J, "KeyJ"},
+  {VKEY_K, "KeyK"},
+  {VKEY_L, "KeyL"},
+  {VKEY_M, "KeyM"},
+  {VKEY_N, "KeyN"},
+  {VKEY_O, "KeyO"},
+  {VKEY_P, "KeyP"},
+  {VKEY_Q, "KeyQ"},
+  {VKEY_R, "KeyR"},
+  {VKEY_S, "KeyS"},
+  {VKEY_T, "KeyT"},
+  {VKEY_U, "KeyU"},
+  {VKEY_V, "KeyV"},
+  {VKEY_W, "KeyW"},
+  {VKEY_X, "KeyX"},
+  {VKEY_Y, "KeyY"},
+  {VKEY_Z, "KeyZ"},
+  {VKEY_LWIN, "OSLeft"},
+  {VKEY_RWIN, "OSRight"},
+  {VKEY_NUMPAD0, "Numpad0"},
+  {VKEY_NUMPAD1, "Numpad1"},
+  {VKEY_NUMPAD2, "Numpad2"},
+  {VKEY_NUMPAD3, "Numpad3"},
+  {VKEY_NUMPAD4, "Numpad4"},
+  {VKEY_NUMPAD5, "Numpad5"},
+  {VKEY_NUMPAD6, "Numpad6"},
+  {VKEY_NUMPAD7, "Numpad7"},
+  {VKEY_NUMPAD8, "Numpad8"},
+  {VKEY_NUMPAD9, "Numpad9"},
+  {VKEY_MULTIPLY, "NumpadMultiply"},
+  {VKEY_ADD, "NumpadAdd"},
+  {VKEY_SUBTRACT, "NumpadSubtract"},
+  {VKEY_DECIMAL, "NumpadDecimal"},
+  {VKEY_DIVIDE, "NumpadDivide"},
+  {VKEY_F1, "F1"},
+  {VKEY_F2, "F2"},
+  {VKEY_F3, "F3"},
+  {VKEY_F4, "F4"},
+  {VKEY_F5, "F5"},
+  {VKEY_F6, "F6"},
+  {VKEY_F7, "F7"},
+  {VKEY_F8, "F8"},
+  {VKEY_F9, "F9"},
+  {VKEY_F10, "F10"},
+  {VKEY_F11, "F11"},
+  {VKEY_F12, "F12"},
+  {VKEY_F13, "F13"},
+  {VKEY_F14, "F14"},
+  {VKEY_F15, "F15"},
+  {VKEY_F16, "F16"},
+  {VKEY_F17, "F17"},
+  {VKEY_F18, "F18"},
+  {VKEY_F19, "F19"},
+  {VKEY_F20, "F20"},
+  {VKEY_F21, "F21"},
+  {VKEY_F22, "F22"},
+  {VKEY_F23, "F23"},
+  {VKEY_F24, "F24"},
+  {VKEY_NUMLOCK, "NumLock"},
+  {VKEY_SCROLL, "ScrollLock"},
+  {VKEY_LSHIFT, "ShiftLeft"},
+  {VKEY_RSHIFT, "ShiftRight"},
+  {VKEY_LCONTROL, "CtrlLeft"},
+  {VKEY_RCONTROL, "CtrlRight"},
+  {VKEY_LMENU, "AltLeft"},
+  {VKEY_RMENU, "AltRight"},
+  {VKEY_BROWSER_BACK, "BrowserBack"},
+  {VKEY_BROWSER_FORWARD, "BrowserForward"},
+  {VKEY_BROWSER_REFRESH, "BrowserRefresh"},
+  {VKEY_BROWSER_STOP, "BrowserStop"},
+  {VKEY_BROWSER_SEARCH, "BrowserSearch"},
+  {VKEY_BROWSER_HOME, "BrowserHome"},
+  {VKEY_VOLUME_MUTE, "VolumeMute"},
+  {VKEY_VOLUME_DOWN, "VolumeDown"},
+  {VKEY_VOLUME_UP, "VolumeUp"},
+  {VKEY_MEDIA_NEXT_TRACK, "MediaTrackNext"},
+  {VKEY_MEDIA_PREV_TRACK, "MediaTrackPrevious"},
+  {VKEY_MEDIA_STOP, "MediaStop"},
+  {VKEY_MEDIA_PLAY_PAUSE, "MediaPlayPause"},
+  {VKEY_MEDIA_LAUNCH_MAIL, "LaunchMail"},
+  {VKEY_OEM_1, "Semicolon"},
+  {VKEY_OEM_PLUS, "Equal"},
+  {VKEY_OEM_COMMA, "Comma"},
+  {VKEY_OEM_MINUS, "Minus"},
+  {VKEY_OEM_PERIOD, "Period"},
+  {VKEY_OEM_2, "Slash"},
+  {VKEY_OEM_3, "Backquote"},
+  {VKEY_OEM_4, "BracketLeft"},
+  {VKEY_OEM_5, "Backslash"},
+  {VKEY_OEM_6, "BracketRight"},
+  {VKEY_OEM_7, "Quote"}};
+
+class KeyCodeMap {
+ public:
+  KeyCodeMap() {
+    for (size_t i = 0; i < arraysize(kKeyCodeTable); ++i)
+      map_[kKeyCodeTable[i].dom_code] = kKeyCodeTable[i].keyboard_code;
   }
+
+  KeyboardCode GetKeyboardCode(const std::string& dom_code) const {
+    std::map<std::string, KeyboardCode>::const_iterator it =
+        map_.find(dom_code);
+    return (it == map_.end()) ? VKEY_UNKNOWN : it->second;
+  }
+
+ private:
+  std::map<std::string, KeyboardCode> map_;
+};
+
+base::LazyInstance<KeyCodeMap>::Leaky

[Yuki, 2014/06/16 08:52:20]

nit: Breaking line between variable and initializer is preferable for code
search and style guide.

[Shu Chen, 2014/06/16 08:55:10]

Done.

+    g_keycode_map = LAZY_INSTANCE_INITIALIZER;
+
+}  // namespace
+
+KeyboardCode DomKeycodeToKeyboardCode(const std::string& code) {
+  return g_keycode_map.Get().GetKeyboardCode(code);
 }
 
 }  // namespace ui