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#ifndef AUTOLOCKEVENTFILTER_H
#define AUTOLOCKEVENTFILTER_H
#include <QDebug>
#include <QEvent>
#include <QTimer>
class AutoLockEventFilter : public QObject {
Q_OBJECT
public:
explicit AutoLockEventFilter(int timeoutmillis)
: timeoutmillis(timeoutmillis) {
autoLockTimer = new QTimer(this);
connect(autoLockTimer, &QTimer::timeout, this,
QOverload<>::of(&AutoLockEventFilter::lockApp));
resetTimer();
}
~AutoLockEventFilter() {
autoLockTimer->stop();
delete autoLockTimer;
}
signals:
void autoLockTimerTimeout();
private:
QTimer *autoLockTimer = nullptr;
int timeoutmillis;
public slots:
void stopTimer() { autoLockTimer->stop(); }
void resetTimer() { autoLockTimer->start(timeoutmillis); }
void lockApp() { emit autoLockTimerTimeout(); }
void setTimeoutmillis(int newTimeoutmillis) {
timeoutmillis = newTimeoutmillis;
}
protected:
bool eventFilter(QObject *obj, QEvent *ev) {
if (ev->type() == QEvent::KeyPress || ev->type() == QEvent::MouseMove ||
ev->type() == QEvent::Wheel || ev->type() == QEvent::TouchUpdate ||
ev->type() == QEvent::MouseButtonRelease ||
ev->type() == QEvent::MouseButtonPress ||
ev->type() == QEvent::MouseButtonDblClick ||
ev->type() == QEvent::Gesture || ev->type() == QEvent::FocusIn ||
ev->type() == QEvent::FocusOut || ev->type() == QEvent::Enter) {
resetTimer();
}
return QObject::eventFilter(obj, ev);
}
};
#endif // AUTOLOCKEVENTFILTER_H
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