/* Gwenview: an image viewer Copyright 2018 Friedrich W. H. Kossebau 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 of the License, or (at your option) any later version. 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef LOCKSCREENWATCHER_H #define LOCKSCREENWATCHER_H // Qt #include class OrgFreedesktopScreenSaverInterface; class QDBusPendingCallWatcher; namespace Gwenview { class LockScreenWatcher : public QObject { Q_OBJECT public: explicit LockScreenWatcher(QObject *parent); ~LockScreenWatcher() override; public: bool isLocked() const; Q_SIGNALS: void isLockedChanged(bool locked); private: void onScreenSaverActiveChanged(bool isActive); void onActiveQueried(QDBusPendingCallWatcher *watcher); void onScreenSaverServiceOwnerChanged(const QString &serviceName, const QString &oldOwner, const QString &newOwner); void onServiceRegisteredQueried(); void onServiceOwnerQueried(); private: OrgFreedesktopScreenSaverInterface *mScreenSaverInterface = nullptr; bool mLocked = false; }; } #endif