/*

* Copyright (c) 2005-2009 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 BTGPSMESSAGESENDER_H

#define BTGPSMESSAGESENDER_H

//  INCLUDES

#include <e32base.h>

#include <badesca.h>

#include "BTGPSDeviceListener.h"

// CONSTANTS

/**

* The size of the output buffer size. This

* have to be longer than longest NMEA message

*/

const TInt KSendMessageSize = 200;

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class RSocket;

class CBTGPSDeviceManager;

// CLASS DECLARATION

/**

*  This class is used to send messages to connected BT device. 

*  It doesn't garentee the message can be received from connected

*  BT device. The message are buffered if necessary to prevent

*  jams on BT connection.

*  

*/

class CBTGPSMessageSender: public CActive, private MBTGPSDeviceListener

    {

    public: 

        /**

        * Two-phase construction.

        * @param aSocket Reference to RSocket.

        * @param aDeviceManager Reference to device manager

        */

        static CBTGPSMessageSender * NewL(

            RSocket& aSocket,

            CBTGPSDeviceManager& aDeviceManager);

        /**

        * Destructor

        */

        virtual ~CBTGPSMessageSender();

        /**

        * Send message

        * @param aMsg Message to be sent.

        */

        void SendL(const TDesC8& aMsg);

    private:

        /**

        * From CActive

        */

        virtual void RunL();

        /**

        * From CActive

        */

        virtual void DoCancel();

        /**

        * From CActive

        */

        virtual TInt RunError(TInt aError);

        /**

        * From MBTGPSDeviceListener

        */

        virtual void BTDeviceStatusChanged(

            TInt aConnectStatus, 

            TInt aDeviceType,

            TInt aErr=KErrNone);

    private:

        /**

        * Second phase of the construction

        */

        void ConstructL();

        /**

        * Private constructor

        */

        CBTGPSMessageSender(

            RSocket& aSocket,

            CBTGPSDeviceManager& aDeviceManager);

        /**

        * Start timer

        */

        void StartTimer();

        /**

        * Timer callback

        */

        void TimerTick();

        /**

        * Static timer callback

        */

        static TInt TimerCallback(TAny* aAny);

    private:

        //Socket

        RSocket& iSocket;

        //Device manager

        CBTGPSDeviceManager& iDeviceManager;

        //Sending buffer

        CDesC8ArrayFlat* iBuffer;

        //Timer

        CPeriodic* iTimer;

    };

#endif

// End of File