keepassxc/src/core/InactivityTimer.cpp

81 lines
2.1 KiB
C++

/*
* Copyright (C) 2014 Felix Geyer <debfx@fobos.de>
*
* 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 or (at your option)
* version 3 of the License.
*
* 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/>.
*/
#include "InactivityTimer.h"
#include <QCoreApplication>
#include <QTimer>
InactivityTimer::InactivityTimer(QObject* parent)
: QObject(parent)
, m_timer(new QTimer(this))
, m_active(false)
{
m_timer->setSingleShot(true);
connect(m_timer, SIGNAL(timeout()), SLOT(timeout()));
}
void InactivityTimer::setInactivityTimeout(int inactivityTimeout)
{
Q_ASSERT(inactivityTimeout > 0);
m_timer->setInterval(inactivityTimeout);
}
void InactivityTimer::activate()
{
if (!m_active) {
qApp->installEventFilter(this);
}
m_active = true;
m_timer->start();
}
void InactivityTimer::deactivate()
{
qApp->removeEventFilter(this);
m_active = false;
m_timer->stop();
}
bool InactivityTimer::eventFilter(QObject* watched, QEvent* event)
{
const QEvent::Type type = event->type();
if ( (type >= QEvent::MouseButtonPress && type <= QEvent::KeyRelease)
|| (type >= QEvent::HoverEnter && type <= QEvent::HoverMove)
|| (type == QEvent::Wheel) ) {
m_timer->start();
}
return QObject::eventFilter(watched, event);
}
void InactivityTimer::timeout()
{
// make sure we don't emit the signal a second time while it's still processed
if (!m_emitMutx.tryLock()) {
return;
}
if (m_active && !m_timer->isActive()) {
Q_EMIT inactivityDetected();
}
m_emitMutx.unlock();
}