File indexing completed on 2024-05-12 04:19:46
0001 /* 0002 Gwenview: an image viewer 0003 Copyright 2018 Friedrich W. H. Kossebau <kossebau@kde.org> 0004 0005 This program is free software; you can redistribute it and/or 0006 modify it under the terms of the GNU General Public License 0007 as published by the Free Software Foundation; either version 2 0008 of the License, or (at your option) any later version. 0009 0010 This program is distributed in the hope that it will be useful, 0011 but WITHOUT ANY WARRANTY; without even the implied warranty of 0012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0013 GNU General Public License for more details. 0014 0015 You should have received a copy of the GNU General Public License 0016 along with this program; if not, write to the Free Software 0017 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 0018 */ 0019 0020 #ifndef LOCKSCREENWATCHER_H 0021 #define LOCKSCREENWATCHER_H 0022 0023 // Qt 0024 #include <QObject> 0025 0026 class OrgFreedesktopScreenSaverInterface; 0027 class QDBusPendingCallWatcher; 0028 0029 namespace Gwenview 0030 { 0031 class LockScreenWatcher : public QObject 0032 { 0033 Q_OBJECT 0034 0035 public: 0036 explicit LockScreenWatcher(QObject *parent); 0037 ~LockScreenWatcher() override; 0038 0039 public: 0040 bool isLocked() const; 0041 0042 Q_SIGNALS: 0043 void isLockedChanged(bool locked); 0044 0045 private: 0046 void onScreenSaverActiveChanged(bool isActive); 0047 void onActiveQueried(QDBusPendingCallWatcher *watcher); 0048 void onScreenSaverServiceOwnerChanged(const QString &serviceName, const QString &oldOwner, const QString &newOwner); 0049 void onServiceRegisteredQueried(); 0050 void onServiceOwnerQueried(); 0051 0052 private: 0053 OrgFreedesktopScreenSaverInterface *mScreenSaverInterface = nullptr; 0054 bool mLocked = false; 0055 }; 0056 0057 } 0058 0059 #endif