workspace/powerdevil/daemon/WidgetBasedPoller.h

   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Dario Freddi <drf@kdemod.ath.cx>                *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .        *
  18  **************************************************************************/
  19
  20 #ifndef WIDGETBASEDPOLLER_H
  21 #define WIDGETBASEDPOLLER_H
  22
  23 #include "AbstractSystemPoller.h"
  24
  25 #include <config-powerdevil.h>
  26
  27 #include "screensaver_interface.h"
  28
  29 class QTimer;
  30 class QEvent;
  31
  32 class WidgetBasedPoller : public AbstractSystemPoller
  33 {
  34     Q_OBJECT
  35
  36 public:
  37     WidgetBasedPoller(QObject *parent = 0);
  38     virtual ~WidgetBasedPoller();
  39
  40     AbstractSystemPoller::PollingType getPollingType() {
  41         return AbstractSystemPoller::WidgetBased;
  42     };
  43     QString name();
  44
  45     bool isAvailable();
  46     bool setUpPoller();
  47     void unloadPoller();
  48
  49 protected:
  50     bool eventFilter(QObject * object, QEvent * event);
  51
  52 public slots:
  53     void setNextTimeout(int nextTimeout);
  54     void forcePollRequest();
  55     void stopCatchingTimeouts();
  56     void catchIdleEvent();
  57     void stopCatchingIdleEvents();
  58
  59 private slots:
  60     void poll();
  61     void detectedActivity();
  62     void waitForActivity();
  63     void releaseInputLock();
  64     void screensaverActivated(bool activated);
  65
  66 signals:
  67     void resumingFromIdle();
  68     void pollRequest(int idleTime);
  69
  70 private:
  71     QTimer * m_pollTimer;
  72     QWidget * m_grabber;
  73
  74     OrgFreedesktopScreenSaverInterface * m_screenSaverIface;
  75 };
  76
  77 #endif /* WIDGETBASEDPOLLER_H */