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/*
* Copyright (C) 2013-2015 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 3, as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
* SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Daniel d'Andrada <daniel.dandrada@canonical.com>
*/
#ifndef MIR_QT_EVENT_FEEDER_H
#define MIR_QT_EVENT_FEEDER_H
#include <mir/input/input_dispatcher.h>
#include <mir/shell/input_targeter.h>
#include <qpa/qwindowsysteminterface.h>
class QTouchDevice;
/*
Fills Qt's event loop with input events from Mir
*/
class QtEventFeeder : public mir::input::InputDispatcher
{
public:
// Interface between QtEventFeeder and the actual QWindowSystemInterface functions
// and other related Qt methods and objects to enable replacing them with mocks in
// pure unit tests.
// TODO - Make it work with multimonitor scenarios
class QtWindowSystemInterface {
public:
virtual ~QtWindowSystemInterface() {}
virtual bool hasTargetWindow() = 0;
virtual QRect targetWindowGeometry() = 0;
virtual void registerTouchDevice(QTouchDevice *device) = 0;
virtual void handleExtendedKeyEvent(ulong timestamp, QEvent::Type type, int key,
Qt::KeyboardModifiers modifiers,
quint32 nativeScanCode, quint32 nativeVirtualKey,
quint32 nativeModifiers,
const QString& text = QString(), bool autorep = false,
ushort count = 1) = 0;
virtual void handleTouchEvent(ulong timestamp, QTouchDevice *device,
const QList<struct QWindowSystemInterface::TouchPoint> &points,
Qt::KeyboardModifiers mods = Qt::NoModifier) = 0;
virtual void handleMouseEvent(ulong timestamp, QPointF point, Qt::MouseButton buttons, Qt::KeyboardModifiers modifiers) = 0;
};
QtEventFeeder(QtWindowSystemInterface *windowSystem = nullptr);
virtual ~QtEventFeeder();
static const int MirEventActionMask;
static const int MirEventActionPointerIndexMask;
static const int MirEventActionPointerIndexShift;
bool dispatch(MirEvent const& event) override;
void start() override;
void stop() override;
private:
void dispatchKey(MirInputEvent const* event);
void dispatchTouch(MirInputEvent const* event);
void dispatchPointer(MirInputEvent const* event);
void validateTouches(ulong timestamp, QList<QWindowSystemInterface::TouchPoint> &touchPoints);
bool validateTouch(QWindowSystemInterface::TouchPoint &touchPoint);
void sendActiveTouchRelease(ulong timestamp, int id);
QString touchesToString(const QList<struct QWindowSystemInterface::TouchPoint> &points);
QTouchDevice *mTouchDevice;
QtWindowSystemInterface *mQtWindowSystem;
// Maps the id of an active touch to its last known state
QHash<int, QWindowSystemInterface::TouchPoint> mActiveTouches;
};
#endif // MIR_QT_EVENT_FEEDER_H
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