workspace/plasma/dataengines/powermanagement/powermanagementengine.h

   1 /*
   2  *   Copyright 2007 Aaron Seigo <aseigo@kde.org>
   3  *   Copyright 2007-2008 Sebastian Kuegler <sebas@kde.org>
   4  *   Copyright 2008 Dario Freddi <drf54321@gmail.com>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU Library General Public License version 2 as
   8  *   published by the Free Software Foundation
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details
  14  *
  15  *   You should have received a copy of the GNU Library General Public
  16  *   License along with this program; if not, write to the
  17  *   Free Software Foundation, Inc.,
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20
  21 #ifndef POWERMANAGEMENTENGINE_H
  22 #define POWERMANAGEMENTENGINE_H
  23
  24 #include <Plasma/DataEngine>
  25
  26 #include <solid/battery.h>
  27 #include <solid/acadapter.h>
  28
  29 #include <QtDBus/QDBusConnection>
  30 #include <QHash>
  31
  32 /**
  33  * This class provides runtime information about the battery and AC status
  34  * for use in power management Plasma applets.
  35  */
  36 class PowermanagementEngine : public Plasma::DataEngine
  37 {
  38     Q_OBJECT
  39
  40 public:
  41     PowermanagementEngine( QObject* parent, const QVariantList& args );
  42     ~PowermanagementEngine();
  43     QStringList sources() const;
  44
  45 protected:
  46     bool sourceRequestEvent(const QString &name);
  47     void init();
  48
  49 private slots:
  50     void updateBatteryChargeState(int newState, const QString& udi);
  51     void updateBatteryPlugState(bool newState, const QString& udi);
  52     void updateBatteryChargePercent(int newValue, const QString& udi);
  53     void updateAcPlugState(bool newState);
  54     void deviceRemoved(const QString& udi);
  55     void deviceAdded(const QString& udi);
  56     void profilesChanged(const QString &current, const QStringList &profiles);
  57     void batteryRemainingTimeChanged(int time);
  58
  59 private:
  60     Solid::AcAdapter* m_acadapter;
  61     QStringList m_sources;
  62     QDBusConnection m_dbus;
  63
  64     QHash<QString, QString> m_batterySources;
  65
  66 };
  67
  68 K_EXPORT_PLASMA_DATAENGINE(powermanagement, PowermanagementEngine)
  69
  70 #endif