/*

* 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:  Network info listener.

*

*/

#ifndef CNETWORKLISTENER_H

#define CNETWORKLISTENER_H

// System includes

#include <e32base.h>

#include <nwhandlingengine.h>

// User includes

// Forward declarations

class CNWSession;

class MNetworkListenerObserver;

/**

 *  Network info listener.

 */

NONSHARABLE_CLASS( CNetworkListener ) : public CBase, 

    public MNWMessageObserver

    {

public:

    /**

     * Get pointer to network info listener.

     * @return pointer to network info listener.

     */

    static CNetworkListener* NewL( MNetworkListenerObserver& aObserver );

    ~CNetworkListener();

    // from base class MNWMessageObserver

    /**

     * From MNWMessageObserver.

     * Called by network handling engine when network info changes.

     * @param aMessage is type of the change.

     */

    void HandleNetworkMessage( const TNWMessages aMessage );

    /**

     * From MNWMessageObserver.

     * Called fi network handling engine fails.

     * @param aOperation is failed operation.

     * @param aErrorCode is fail reason.

     */

    void HandleNetworkError( const TNWOperation aOperation, TInt aErrorCode );

    static TInt NWLostDelayCallBack(TAny* aParam);

private:

    CNetworkListener( MNetworkListenerObserver& aObserver );

    void ConstructL();

    void HandleNetworkFound();

    void HandleNetworkLost();

    /**

     * Tests if offline mode is engaged.

     * @return ETrue if offline mode is currently active

     */

    TBool IsOffLineMode() const;

    /**

     * Tests if Bluetooth SAP is in connected mode.

     * @return ETrue if Bluetooth SAP is active.

     */

    TBool IsBluetoothSAPConnected() const;

    /**

     * Tests if SIM is in OK state.

     * @return ETrue if SIM is in OK state.

     */

    TBool IsSimOk() const;

private: // data

    /**

     * Session to network handling engine.

     * Own.

     */

    CNWSession* iSession;

    /**

     * Cached network info structure.

     */

    TNWInfo iInfo;

    /**

     * Timer to delay the showing of the notification if needed

     * Own

     */

    CPeriodic *iTimer;

    /**

     * A true value if registered to network.

     */

    TBool iRegistered;

    /**

     * Observer.

     */

    MNetworkListenerObserver& iObserver;

    };

#endif // CNETWORKLISTENER_H