kwin/pointer_input.h
Martin Gräßlin c044ad98be Split out pointer related handling from InputRedirection
All pointer related code is moved into a new class called
PointerInputRedirection.

The main idea is to simplify the code and make it easier to maintain.
Therefore also a few changes in the setup were performed:
* before init() is called, no processing is performed
* init() is only called on Wayland and after Workspace is created
* init property is set to false once Workspace or WaylandServer is
  destroyed

Thus code can operate on the following assumptions:
* Workspace is valid
* WaylandServer is valid
* ScreenLocker integration is used

The various checks whether there is a waylandServer() and whether
there is a seat are no longer needed.

Some of the checks have been reordered to be faster in the most common
use case of using libinput. E.g. whether warping is supported is first
evaluated by the variable bound to whether we have libinput and only if
that is false the backend is checked.

The new class doesn't have signals but invokes the signals provided
by InputRedirection. I didn't want to add new signals as I consider
them as not needed. The areas in KWin needing those signals should
be ported to InputEventFilters.
2016-02-12 13:38:26 +01:00

114 lines
3.1 KiB
C++

/********************************************************************
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_POINTER_INPUT_H
#define KWIN_POINTER_INPUT_H
#include "input.h"
#include <QObject>
#include <QPointer>
#include <QPointF>
class QWindow;
namespace KWin
{
class InputRedirection;
class Toplevel;
namespace Decoration
{
class DecoratedClientImpl;
}
class PointerInputRedirection : public QObject
{
Q_OBJECT
public:
explicit PointerInputRedirection(InputRedirection *parent);
virtual ~PointerInputRedirection();
void init();
void update();
void updateAfterScreenChange();
bool supportsWarping() const;
void warp(const QPointF &pos);
QPointF pos() const {
return m_pos;
}
Qt::MouseButtons buttons() const {
return m_qtButtons;
}
QPointer<Toplevel> window() const {
return m_window;
}
QPointer<Decoration::DecoratedClientImpl> decoration() const {
return m_decoration;
}
QPointer<QWindow> internalWindow() const {
return m_internalWindow;
}
void installCursorFromDecoration();
/**
* @internal
*/
void processMotion(const QPointF &pos, uint32_t time);
/**
* @internal
*/
void processButton(uint32_t button, InputRedirection::PointerButtonState state, uint32_t time);
/**
* @internal
*/
void processAxis(InputRedirection::PointerAxis axis, qreal delta, uint32_t time);
private:
void updatePosition(const QPointF &pos);
void updateButton(uint32_t button, InputRedirection::PointerButtonState state);
void updateInternalWindow();
void updateDecoration(Toplevel *t);
InputRedirection *m_input;
bool m_inited = false;
bool m_supportsWarping;
QPointF m_pos;
QHash<uint32_t, InputRedirection::PointerButtonState> m_buttons;
Qt::MouseButtons m_qtButtons;
/**
* @brief The Toplevel which currently receives pointer events
*/
QPointer<Toplevel> m_window;
/**
* @brief The Decoration which currently receives pointer events.
* Decoration belongs to the pointerWindow
**/
QPointer<Decoration::DecoratedClientImpl> m_decoration;
QPointer<QWindow> m_internalWindow;
QMetaObject::Connection m_windowGeometryConnection;
QMetaObject::Connection m_internalWindowConnection;
};
}
#endif