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inputwatcher.h
/*
* Copyright (C) 2015 Canonical Ltd.
*
* 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; version 3.
*
* 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 LOMIRI_INPUTWATCHER_H
#define LOMIRI_INPUTWATCHER_H
#include <QObject>
#include <QPointer>
/*
Monitors the target object for input events to figure out whether it's pressed
or not.
*/
class InputWatcher : public QObject
{
Q_OBJECT
Q_PROPERTY(QObject* target READ target WRITE setTarget NOTIFY targetChanged)
// Whether the target object is pressed (by either touch or mouse)
Q_PROPERTY(bool targetPressed READ targetPressed NOTIFY targetPressedChanged)
public:
InputWatcher(QObject *parent = nullptr);
QObject *target() const;
void setTarget(QObject *value);
bool targetPressed() const;
bool eventFilter(QObject *watched, QEvent *event) override;
Q_SIGNALS:
void targetChanged(QObject *value);
void targetPressedChanged(bool value);
private:
void setMousePressed(bool value);
void setTouchPressed(bool value);
bool m_mousePressed;
bool m_touchPressed;
QPointer<QObject> m_target;
};
#endif // LOMIRI_INPUTWATCHER_H