ui/events/keycodes/keyboard_code_conversion_x.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_EVENTS_KEYCODES_KEYBOARD_CODE_CONVERSION_X_H_
   6 #define UI_EVENTS_KEYCODES_KEYBOARD_CODE_CONVERSION_X_H_
   7
   8 #include "base/basictypes.h"
   9 #include "ui/events/events_base_export.h"
  10 #include "ui/events/keycodes/keyboard_codes_posix.h"
  11
  12 typedef union _XEvent XEvent;
  13 typedef struct _XDisplay XDisplay;
  14
  15 namespace ui {
  16
  17 enum class DomCode;
  18
  19 EVENTS_BASE_EXPORT KeyboardCode KeyboardCodeFromXKeyEvent(const XEvent* xev);
  20
  21 EVENTS_BASE_EXPORT KeyboardCode KeyboardCodeFromXKeysym(unsigned int keysym);
  22
  23 EVENTS_BASE_EXPORT DomCode CodeFromXEvent(const XEvent* xev);
  24
  25 // Returns a character on a standard US PC keyboard from an XEvent.
  26 EVENTS_BASE_EXPORT uint16 GetCharacterFromXEvent(const XEvent* xev);
  27
  28 // Converts a KeyboardCode into an X KeySym.
  29 EVENTS_BASE_EXPORT int XKeysymForWindowsKeyCode(KeyboardCode keycode,
  30                                                 bool shift);
  31
  32 // Returns a XKeyEvent keycode (scancode) for a KeyboardCode. Keyboard layouts
  33 // are usually not injective, so inverse mapping should be avoided when
  34 // practical. A round-trip keycode -> KeyboardCode -> keycode will not
  35 // necessarily return the original keycode.
  36 EVENTS_BASE_EXPORT unsigned int XKeyCodeForWindowsKeyCode(KeyboardCode key_code,
  37                                                           int flags,
  38                                                           XDisplay* display);
  39
  40 // Converts an X keycode into ui::KeyboardCode.
  41 EVENTS_BASE_EXPORT KeyboardCode
  42     DefaultKeyboardCodeFromHardwareKeycode(unsigned int hardware_code);
  43
  44 // Initializes a core XKeyEvent from an XI2 key event.
  45 EVENTS_BASE_EXPORT void InitXKeyEventFromXIDeviceEvent(const XEvent& src,
  46                                                        XEvent* dst);
  47
  48 }  // namespace ui
  49
  50 #endif  // UI_EVENTS_KEYCODES_KEYBOARD_CODE_CONVERSION_X_H_