kwin/libinput/connection.h
Martin Gräßlin 69cbb40903 Pass LibInput::Device* through the event handlers
Summary:
The signals emitted by LibInput::Connection carry the Device for which
the input event was received. This Device is passed to the input handlers.

Custom event classes are added which extend QMouseEvent, QKeyEvent and
QWheelEvent respectively and expose the Device. The Device is only passed
around as a forward declared pointer, so even if compiled without libinput
support, it should still compile.

Event handlers which need to get access to the Device can now just cast
the event pointer to the custom class and access it. This can be used in
future to handle device specific key codes, etc.

As we don't have a proper event classes for touch events the event
handlers do not yet have access to the Device. Here the internal API
needs to be adjusted in future.

Reviewers: #plasma

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D1667
2016-05-30 15:26:37 +02:00

138 lines
4 KiB
C++

/********************************************************************
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>
#include <QMutex>
#include <QVector>
class QSocketNotifier;
class QThread;
namespace KWin
{
namespace LibInput
{
class Event;
class Device;
class Context;
class Connection : public QObject
{
Q_OBJECT
public:
~Connection();
void setInputConfig(const KSharedConfigPtr &config) {
m_config = config;
}
void setup();
/**
* Sets the screen @p size. This is needed for mapping absolute pointer events to
* the screen data.
**/
void setScreenSize(const QSize &size);
bool hasKeyboard() const {
return m_keyboard > 0;
}
bool hasAlphaNumericKeyboard() const {
return m_alphaNumericKeyboard > 0;
}
bool hasTouch() const {
return m_touch > 0;
}
bool hasPointer() const {
return m_pointer > 0;
}
bool isSuspended() const;
void deactivate();
void processEvents();
void toggleTouchpads();
QVector<Device*> devices() const {
return m_devices;
}
Q_SIGNALS:
void keyChanged(quint32 key, KWin::InputRedirection::KeyboardKeyState, quint32 time, KWin::LibInput::Device *device);
void pointerButtonChanged(quint32 button, KWin::InputRedirection::PointerButtonState state, quint32 time, KWin::LibInput::Device *device);
void pointerMotionAbsolute(QPointF orig, QPointF screen, quint32 time, KWin::LibInput::Device *device);
void pointerMotion(QPointF delta, quint32 time, KWin::LibInput::Device *device);
void pointerAxisChanged(KWin::InputRedirection::PointerAxis axis, qreal delta, quint32 time, KWin::LibInput::Device *device);
void touchFrame(KWin::LibInput::Device *device);
void touchCanceled(KWin::LibInput::Device *device);
void touchDown(qint32 id, const QPointF &absolutePos, quint32 time, KWin::LibInput::Device *device);
void touchUp(qint32 id, quint32 time, KWin::LibInput::Device *device);
void touchMotion(qint32 id, const QPointF &absolutePos, quint32 time, KWin::LibInput::Device *device);
void hasKeyboardChanged(bool);
void hasAlphaNumericKeyboardChanged(bool);
void hasPointerChanged(bool);
void hasTouchChanged(bool);
void deviceAdded(KWin::LibInput::Device *);
void deviceRemoved(KWin::LibInput::Device *);
void eventsRead();
private Q_SLOTS:
void doSetup();
void slotKGlobalSettingsNotifyChange(int type, int arg);
private:
Connection(Context *input, QObject *parent = nullptr);
void handleEvent();
void applyDeviceConfig(Device *device);
Context *m_input;
QSocketNotifier *m_notifier;
QSize m_size;
int m_keyboard = 0;
int m_alphaNumericKeyboard = 0;
int m_pointer = 0;
int m_touch = 0;
bool m_keyboardBeforeSuspend = false;
bool m_alphaNumericKeyboardBeforeSuspend = false;
bool m_pointerBeforeSuspend = false;
bool m_touchBeforeSuspend = false;
QMutex m_mutex;
QVector<Event*> m_eventQueue;
bool wasSuspended = false;
QVector<Device*> m_devices;
KSharedConfigPtr m_config;
bool m_touchpadsEnabled = true;
KWIN_SINGLETON(Connection)
static QThread *s_thread;
};
}
}
#endif