workspace/plasma/dataengines/soliddevice/soliddeviceengine.h

   1 /*
   2  *   Copyright (C) 2007 Christopher Blauvelt <cblauvelt@gmail.com>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU Library General Public License version 2 as
   6  *   published by the Free Software Foundation
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details
  12  *
  13  *   You should have received a copy of the GNU Library General Public
  14  *   License along with this program; if not, write to the
  15  *   Free Software Foundation, Inc.,
  16  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #ifndef SOLIDDEVICEENGINE_H
  20 #define SOLIDDEVICEENGINE_H
  21
  22 #include <QObject>
  23 #include <QString>
  24 #include <QList>
  25 #include <QMap>
  26 #include <QPair>
  27
  28 #include <solid/devicenotifier.h>
  29 #include <solid/device.h>
  30 #include <solid/deviceinterface.h>
  31 #include <solid/predicate.h>
  32
  33 #include <Plasma/DataEngine>
  34 #include "devicesignalmapmanager.h"
  35 #include "devicesignalmapper.h"
  36 #include "hddtemp.h"
  37
  38 /**
  39  * This class evaluates the basic expressions given in the interface.
  40  */
  41 class SolidDeviceEngine : public Plasma::DataEngine
  42 {
  43     Q_OBJECT
  44
  45 public:
  46     SolidDeviceEngine( QObject* parent, const QVariantList& args);
  47     ~SolidDeviceEngine();
  48
  49 protected:
  50     bool sourceRequestEvent(const QString &name);
  51     bool updateSourceEvent(const QString& source);
  52
  53 private:
  54     bool populateDeviceData(const QString &name);
  55     qlonglong freeDiskSpace(const QString &mountPoint);
  56     bool updateFreeSpace(const QString &udi);
  57     bool updateHardDiskTemperature(const QString &udi);
  58     void listenForNewDevices();
  59
  60     //predicate in string form, list of devices by udi
  61     QMap<QString, QStringList> predicatemap;
  62     //udi, corresponding device
  63     QMap<QString, Solid::Device> devicemap;
  64     DeviceSignalMapManager *signalmanager;
  65
  66     HddTemp *temperature;
  67     Solid::DeviceNotifier *notifier;
  68
  69 private Q_SLOTS:
  70     void deviceAdded(const QString &udi);
  71     void deviceRemoved(const QString &udi);
  72     void deviceChanged(const QString& udi, const QString &property, const QVariant &value);
  73     void sourceRemoved(const QString &source);
  74 };
  75
  76 K_EXPORT_PLASMA_DATAENGINE(soliddevice, SolidDeviceEngine)
  77
  78 #endif