kwin/libinput/connection.h
Martin Gräßlin c4bb3d11fc Initial support for libinput
Libinput is an optional dependency for getting low level input events.
As opening the input devices requires root privs this is rather
pointless in the current state. But there is a small added test app which
can be executed with root privs to demonstrate the functionality. To
properly get input events we need a wrapper like it's used in weston.

So far the following is setup:
* opening devices found by udev
* forwarding keyboard events to InputRedirection
* forwarding pointer button events to InputRedirection
* forwarding pointer axis events to InputRedirection
* signals emitted for pointer motion events

Pointer motion events need some further work as they are provided
as delta events. We need to track that and map them properly.

Also missing are touch events due to me not having a touch screen.
It should be fairly simple to setup the touch events, though.

Also hotplugging of devices is not yet implemented.
2014-10-20 14:51:24 +02:00

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/********************************************************************
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_LIBINPUT_CONNECTION_H
#define KWIN_LIBINPUT_CONNECTION_H
#include "../input.h"
#include <kwinglobals.h>
#include <QObject>
#include <QSize>
class QSocketNotifier;
namespace KWin
{
namespace LibInput
{
class Context;
class Connection : public QObject
{
Q_OBJECT
public:
~Connection();
void setup();
/**
* Sets the screen @p size. This is needed for mapping absolute pointer events to
* the screen data.
**/
void setScreenSize(const QSize &size);
Q_SIGNALS:
void keyChanged(uint32_t key, InputRedirection::KeyboardKeyState, uint32_t time);
void pointerButtonChanged(uint32_t button, InputRedirection::PointerButtonState state, uint32_t time);
void pointerMotionAbsolute(QPointF orig, QPointF screen, uint32_t time);
void pointerMotion(QPointF delta, uint32_t time);
void pointerAxisChanged(InputRedirection::PointerAxis axis, qreal delta, uint32_t time);
private:
Connection(Context *input, QObject *parent = nullptr);
void handleEvent();
Context *m_input;
QSocketNotifier *m_notifier;
QSize m_size;
KWIN_SINGLETON(Connection)
};
}
}
#endif