idletimedetector.h

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/*
 *     Copyright (C) 2003 by Scott Monachello <smonach@cox.net>
 *                   2007 the ktimetracker developers
 *
 *   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 KTIMETRACKER_IDLE_TIME_DETECTOR_H
#define KTIMETRACKER_IDLE_TIME_DETECTOR_H

#include "ktimetrackerutility.h" // SecsPerMinute
#include <QDateTime>
#include <QObject>
#include <config-ktimetracker.h> // HAVE_LIBXSS

class QTimer;

#if defined(HAVE_LIBXSS) && defined(Q_WS_X11)
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/extensions/scrnsaver.h>
 #include <fixx11h.h>
#endif // HAVE_LIBXSS

// Minutes between each idle overrun test.
const int testInterval= secsPerMinute * 1000;

class IdleTimeDetector :public QObject
{
Q_OBJECT

public:
  explicit IdleTimeDetector(int maxIdle);

  bool isIdleDetectionPossible();

Q_SIGNALS:
  void subtractTime(int minutes);

  void stopAllTimers(QDateTime time);

public Q_SLOTS:
  void revert();

  void setMaxIdle(int maxIdle);

  void startIdleDetection();

  void stopIdleDetection();

  void toggleOverAllIdleDetection(bool on);


protected:
#if defined(HAVE_LIBXSS) && defined(Q_WS_X11)
  void informOverrun();
#endif // HAVE_LIBXSS

protected Q_SLOTS:
  void check();

private:
#if defined(HAVE_LIBXSS) && defined(Q_WS_X11)
  XScreenSaverInfo *_mit_info;
#endif
  bool _idleDetectionPossible;
  bool _overAllIdleDetect; // Based on preferences.
  int _maxIdle;
  QTimer *_timer;
  QDateTime start; // when the idletimedetectordialog started
  QDateTime idlestart; // when the idleness started
  int idleminutes;
};

#endif // KTIMETRACKER_IDLE_TIME_DETECTOR_H