/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#ifndef DEVICEDELEGATE_H

#define DEVICEDELEGATE_H

#include <QObject>

#include <QString>

#ifdef QT_MOBILITY_BEARER_SYSINFO

#include "qsysteminfo.h"

#include "qnetworkconfiguration.h"

#include "qnetworkconfigmanager.h"

QTM_USE_NAMESPACE // using QtMobility namespace

#endif // QT_MOBILITY_BEARER_SYSINFO

/*!

  Class to provide device information. It uses QtMobility to provide 

  information about battery level, network signal strength, and network name.

*/

class DeviceDelegate : public QObject {

    Q_OBJECT

  public:

    // default constructor and destructor

    DeviceDelegate();

    ~DeviceDelegate();

    // properties accessible to javascript snippets

    Q_PROPERTY(int batteryLevel READ getBatteryLevel)

    Q_PROPERTY(int networkSignalStrength READ getNetworkSignalStrength)

    Q_PROPERTY(QString networkName READ getNetworkName)

    Q_PROPERTY(bool batteryCharging READ isBatteryCharging)

    // public methods

    int getBatteryLevel() const;

    int getNetworkSignalStrength() const;

    QString getNetworkName() const;

    bool isBatteryCharging() const;

  private:

    // private methods

#ifdef QT_MOBILITY_BEARER_SYSINFO

    void updateSignalStrength(int strength);

    QSystemNetworkInfo::NetworkMode bearerNameToMode(QString) const;

    QSystemNetworkInfo::NetworkMode getInternetConfigurationMode();

    // private member variables

    QSystemDeviceInfo *m_deviceInfo;

    QSystemNetworkInfo *m_networkInfo;

    QSystemNetworkInfo::NetworkMode m_currentMode;

    QNetworkConfigurationManager *m_networkConfigManager;

#endif

    QString m_currentConfigIdentifier;

    bool m_batteryCharging;

    bool m_updating; // updating network configurations

  signals:

    // Sent when the battery level or charging state changes.

    void batteryLevelChanged(int);

    // Sent when the network signal strength changes.

    void networkSignalStrengthChanged(int);

    // Sent when the network name changes.

    void networkNameChanged(const QString&);

  private slots:

#ifdef QT_MOBILITY_BEARER_SYSINFO

    // handles signals from network configuration manager

    void configurationAdded(const QNetworkConfiguration &config);

    void configurationRemoved(const QNetworkConfiguration &config);

    void configurationChanged(const QNetworkConfiguration &config);

    void handleUpdateComplete();

    // handles signals from system network info

    void handleNetworkSignalStrengthChanged(QSystemNetworkInfo::NetworkMode, int);

    void handleNetworkNameChanged(QSystemNetworkInfo::NetworkMode, const QString&);

    // handles signals from system device info

    void handlePowerStateChanged(QSystemDeviceInfo::PowerState);

#endif

};

#endif // DEVICEDELEGATE_H