/********************************************************************
 KWin - the KDE window manager
 This file is part of the KDE project.

Copyright (C) 2014 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_WAYLAND_KEYBOARD_H
#define KWIN_WAYLAND_KEYBOARD_H

#include <QObject>
#include <wayland-client-protocol.h>

namespace KWin
{
namespace Wayland
{

class Keyboard : public QObject
{
    Q_OBJECT
public:
    enum class KeyState {
        Released,
        Pressed
    };
    explicit Keyboard(QObject *parent = nullptr);
    virtual ~Keyboard();

    bool isValid() const {
        return m_keyboard != nullptr;
    }
    void setup(wl_keyboard *keyboard);
    void release();

    operator wl_keyboard*() {
        return m_keyboard;
    }
    operator wl_keyboard*() const {
        return m_keyboard;
    }

    static void keymapCallback(void *data, wl_keyboard *keyboard, uint32_t format, int fd, uint32_t size);
    static void enterCallback(void *data, wl_keyboard *keyboard, uint32_t serial, wl_surface *surface, wl_array *keys);
    static void leaveCallback(void *data, wl_keyboard *keyboard, uint32_t serial, wl_surface *surface);
    static void keyCallback(void *data, wl_keyboard *keyboard, uint32_t serial, uint32_t time, uint32_t key, uint32_t state);
    static void modifiersCallback(void *data, wl_keyboard *keyboard, uint32_t serial, uint32_t modsDepressed,
                                  uint32_t modsLatched, uint32_t modsLocked, uint32_t group);

Q_SIGNALS:
    void keymapChanged(int fd, quint32 size);
    void keyChanged(quint32 key, KWin::Wayland::Keyboard::KeyState state, quint32 time);
    void modifiersChanged(quint32 depressed, quint32 latched, quint32 locked, quint32 group);

private:
    wl_keyboard *m_keyboard;
    static const wl_keyboard_listener s_listener;
};

}
}

Q_DECLARE_METATYPE(KWin::Wayland::Keyboard::KeyState)

#endif