kwin/src/touch_input.h
Vlad Zahorodnii d23dab7be9 wayland: Fix handling of synthetic touch cancel events
In case the compositor wants to cancel a touch sequence, we need to
ignore subsequent touch motion and touch up events until a new sequence
is initiated by the user.

Previously, it was implicitly handled by clearing the mapping table
between the touch slots and touch ids generated by kwayland-server.
2021-02-16 17:53:30 +00:00

90 lines
2.1 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2013, 2016 Martin Gräßlin <mgraesslin@kde.org>
SPDX-FileCopyrightText: 2018 Roman Gilg <subdiff@gmail.com>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KWIN_TOUCH_INPUT_H
#define KWIN_TOUCH_INPUT_H
#include "input.h"
#include <QHash>
#include <QObject>
#include <QPointer>
#include <QPointF>
namespace KWin
{
class InputRedirection;
class Toplevel;
namespace Decoration
{
class DecoratedClientImpl;
}
namespace LibInput
{
class Device;
}
class TouchInputRedirection : public InputDeviceHandler
{
Q_OBJECT
public:
explicit TouchInputRedirection(InputRedirection *parent);
~TouchInputRedirection() override;
bool positionValid() const override;
bool focusUpdatesBlocked() override;
void init() override;
void processDown(qint32 id, const QPointF &pos, quint32 time, LibInput::Device *device = nullptr);
void processUp(qint32 id, quint32 time, LibInput::Device *device = nullptr);
void processMotion(qint32 id, const QPointF &pos, quint32 time, LibInput::Device *device = nullptr);
void cancel();
void frame();
void setDecorationPressId(qint32 id) {
m_decorationId = id;
}
qint32 decorationPressId() const {
return m_decorationId;
}
void setInternalPressId(qint32 id) {
m_internalId = id;
}
qint32 internalPressId() const {
return m_internalId;
}
QPointF position() const override {
return m_lastPosition;
}
int touchPointCount() const {
return m_activeTouchPoints.count();
}
private:
void cleanupInternalWindow(QWindow *old, QWindow *now) override;
void cleanupDecoration(Decoration::DecoratedClientImpl *old, Decoration::DecoratedClientImpl *now) override;
void focusUpdate(Toplevel *focusOld, Toplevel *focusNow) override;
QSet<qint32> m_activeTouchPoints;
bool m_inited = false;
qint32 m_decorationId = -1;
qint32 m_internalId = -1;
QMetaObject::Connection m_focusGeometryConnection;
bool m_windowUpdatedInCycle = false;
QPointF m_lastPosition;
};
}
#endif