kwin/keyboard_input.h

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2013, 2016 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_KEYBOARD_INPUT_H
#define KWIN_KEYBOARD_INPUT_H
#include "input.h"
#include <QObject>
#include <QPointer>
#include <QPointF>
#include <QLoggingCategory>
Q_DECLARE_LOGGING_CATEGORY(KWIN_XKB)
class QWindow;
struct xkb_context;
struct xkb_keymap;
struct xkb_state;
struct xkb_compose_table;
struct xkb_compose_state;
typedef uint32_t xkb_mod_index_t;
typedef uint32_t xkb_led_index_t;
typedef uint32_t xkb_keysym_t;
namespace KWin
{
class InputRedirection;
class Toplevel;
namespace LibInput
{
class Device;
}
class KWIN_EXPORT Xkb
{
public:
Xkb(InputRedirection *input);
~Xkb();
void reconfigure();
void installKeymap(int fd, uint32_t size);
void updateModifiers(uint32_t modsDepressed, uint32_t modsLatched, uint32_t modsLocked, uint32_t group);
void updateKey(uint32_t key, InputRedirection::KeyboardKeyState state);
xkb_keysym_t toKeysym(uint32_t key);
xkb_keysym_t currentKeysym() const {
return m_keysym;
}
QString toString(xkb_keysym_t keysym);
Qt::Key toQtKey(xkb_keysym_t keysym) const;
Qt::KeyboardModifiers modifiers() const;
Qt::KeyboardModifiers modifiersRelevantForGlobalShortcuts() const;
bool shouldKeyRepeat(quint32 key) const;
void switchToNextLayout();
enum class LED {
NumLock = 1 << 0,
CapsLock = 1 << 1,
ScrollLock = 1 << 2
};
Q_DECLARE_FLAGS(LEDs, LED)
LEDs leds() const {
return m_leds;
}
xkb_keymap *keymap() const {
return m_keymap;
}
xkb_state *state() const {
return m_state;
}
quint32 currentLayout() const {
return m_currentLayout;
}
private:
xkb_keymap *loadKeymapFromConfig();
xkb_keymap *loadDefaultKeymap();
void updateKeymap(xkb_keymap *keymap);
void createKeymapFile();
void updateModifiers();
void updateConsumedModifiers(uint32_t key);
InputRedirection *m_input;
xkb_context *m_context;
xkb_keymap *m_keymap;
xkb_state *m_state;
xkb_mod_index_t m_shiftModifier;
xkb_mod_index_t m_capsModifier;
xkb_mod_index_t m_controlModifier;
xkb_mod_index_t m_altModifier;
xkb_mod_index_t m_metaModifier;
xkb_led_index_t m_numLock;
xkb_led_index_t m_capsLock;
xkb_led_index_t m_scrollLock;
Qt::KeyboardModifiers m_modifiers;
Qt::KeyboardModifiers m_consumedModifiers;
xkb_keysym_t m_keysym;
struct {
uint pressCount = 0;
Qt::KeyboardModifier modifier = Qt::NoModifier;
} m_modOnlyShortcut;
quint32 m_currentLayout = 0;
struct {
xkb_compose_table *table = nullptr;
xkb_compose_state *state = nullptr;
} m_compose;
LEDs m_leds;
};
class KWIN_EXPORT KeyboardInputRedirection : public QObject
{
Q_OBJECT
public:
explicit KeyboardInputRedirection(InputRedirection *parent);
virtual ~KeyboardInputRedirection();
void init();
void update();
/**
* @internal
*/
void processKey(uint32_t key, InputRedirection::KeyboardKeyState state, uint32_t time, LibInput::Device *device = nullptr);
/**
* @internal
*/
void processModifiers(uint32_t modsDepressed, uint32_t modsLatched, uint32_t modsLocked, uint32_t group);
/**
* @internal
**/
void processKeymapChange(int fd, uint32_t size);
Xkb *xkb() const {
return m_xkb.data();
}
Qt::KeyboardModifiers modifiers() const {
return m_xkb->modifiers();
}
Qt::KeyboardModifiers modifiersRelevantForGlobalShortcuts() const {
return m_xkb->modifiersRelevantForGlobalShortcuts();
}
Q_SIGNALS:
void ledsChanged(KWin::Xkb::LEDs);
private Q_SLOTS:
void reconfigure();
private:
InputRedirection *m_input;
bool m_inited = false;
QScopedPointer<Xkb> m_xkb;
QMetaObject::Connection m_activeClientSurfaceChangedConnection;
struct {
quint32 key = 0;
quint32 time = 0;
QTimer *timer = nullptr;
} m_keyRepeat;
};
inline
Qt::KeyboardModifiers Xkb::modifiers() const
{
return m_modifiers;
}
}
Q_DECLARE_METATYPE(KWin::Xkb::LED)
Q_DECLARE_METATYPE(KWin::Xkb::LEDs)
#endif