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