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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QICDENGINE_H
#define QICDENGINE_H

#include <QtNetwork/private/qbearerengine_p.h>

#include <QtCore/qtimer.h>

#include <maemo_icd.h>

QT_BEGIN_NAMESPACE

class QNetworkConfigurationPrivate;
class IapMonitor;
class QDBusInterface;

class IcdNetworkConfigurationPrivate : public QNetworkConfigurationPrivate
{
public:
    IcdNetworkConfigurationPrivate();
    ~IcdNetworkConfigurationPrivate();

    QString bearerName() const;

    // In Maemo the id field (defined in QNetworkConfigurationPrivate)
    // is the IAP id (which typically is UUID)
    QByteArray network_id;  // typically WLAN ssid or similar
    QString iap_type;       // is this one WLAN or GPRS

    QString service_type;
    QString service_id;
    uint32_t service_attrs;

    // Network attributes for this IAP, this is the value returned by icd and
    // passed to it when connecting.
    uint32_t network_attrs;
};

inline IcdNetworkConfigurationPrivate *toIcdConfig(QNetworkConfigurationPrivatePointer ptr)
{
    return static_cast<IcdNetworkConfigurationPrivate *>(ptr.data());
}

class QIcdEngine : public QBearerEngine
{
    Q_OBJECT

public:
    QIcdEngine(QObject *parent = 0);
    ~QIcdEngine();

    bool hasIdentifier(const QString &id);

    Q_INVOKABLE void initialize();
    Q_INVOKABLE void requestUpdate();

    QNetworkConfigurationManager::Capabilities capabilities() const;

    QNetworkSessionPrivate *createSessionBackend();

    QNetworkConfigurationPrivatePointer defaultConfiguration();

    void deleteConfiguration(const QString &iap_id);

    inline QNetworkConfigurationPrivatePointer configuration(const QString &id)
    {
        QMutexLocker locker(&mutex);

        return accessPointConfigurations.value(id);
    }

    inline void addSessionConfiguration(QNetworkConfigurationPrivatePointer ptr)
    {
        QMutexLocker locker(&mutex);

        accessPointConfigurations.insert(ptr->id, ptr);
        emit configurationAdded(ptr);
    }

    inline void changedSessionConfiguration(QNetworkConfigurationPrivatePointer ptr)
    {
        QMutexLocker locker(&mutex);

        emit configurationChanged(ptr);
    }

    void cleanup();

    void addConfiguration(QString &iap_id);

Q_SIGNALS:
    void iapStateChanged(const QString& iapid, uint icd_connection_state);

private Q_SLOTS:
    void doRequestUpdate(QList<Maemo::IcdScanResult> scanned = QList<Maemo::IcdScanResult>());
    void cancelAsyncConfigurationUpdate();
    void finishAsyncConfigurationUpdate();
    void asyncUpdateConfigurationsSlot(QDBusMessage msg);
    void connectionStateSignalsSlot(QDBusMessage msg);

private:
    void startListeningStateSignalsForAllConnections();

private:
    IapMonitor *iapMonitor;
    QDBusInterface *m_dbusInterface;
    QTimer m_scanTimer;
    QString m_onlineIapId;
    QStringList m_typesToBeScanned;
    QList<Maemo::IcdScanResult> m_scanResult;

    bool firstUpdate;
    bool m_gettingInitialConnectionState;
    bool m_scanGoingOn;
};

QT_END_NAMESPACE

#endif // QICDENGINE_H