/*

* 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: 

*       Declaration of class CMMKeyBearer.

*       

*/

#ifndef __MMKEYBEARERIMPLEMENTATION_H__

#define __MMKEYBEARERIMPLEMENTATION_H__

// INCLUDE

#include <e32base.h>

#include <c32comm.h>

#include <remcon/remconbearerplugin.h>

#include <remcon/remconbearerinterface.h>

#include <remcon/messagetype.h>

#include "MMKeyBearerObserverPS.h"

//CONSTANTS

const TInt KDataBufferSize = 10;

/**

*  CMMKeyBearer

*     Implementation of the Rem Con Bearer Plugin

*  @lib MMKeyBearer.dll

*  @since 3.0

*/

class CMMKeyBearer : public CRemConBearerPlugin,

                     public MRemConBearerInterface,

                     public MCallBackReceiver

    {

    public:

        /**

        * Creates instance of the CMMKeyBearer class.

        *

        * @param  TBearerParams: required for the CRemConBearerPlugin

        * @return : Instance of the CMMKeyBearer

        */

        static CMMKeyBearer* NewL(TBearerParams& aParams);

        /**

        * Destructor.

        */    

        virtual ~CMMKeyBearer();

    private:  // constructors

        /**

        * default constructor.

        * @param aParams: BearerPlugin Params

        */

        CMMKeyBearer(TBearerParams& aParams);

        /**

        * Two - phase construction.

        */

        void ConstructL();

    private: // from CRemConBearerPlugin

        /** @see CRemConBearerPlugin::GetInterface() */

    	TAny* GetInterface(TUid aUid);

    private: // from MRemConBearerInterface

        /** @see MRemConBearerInterface::GetResponse() */

        TInt GetResponse(TUid& aInterfaceUid, 

            TUint& aTransactionId, 

            TUint& aOperationId, 

            RBuf8& aData, 

            TRemConAddress& aAddr);

        /** @see MRemConBearerInterface::SendCommand() */            

        TInt SendCommand(TUid aInterfaceUid, 

            TUint aCommand, 

            TUint aTransactionId,  

            RBuf8& aData, 

            const TRemConAddress& aAddr);

        /** @see MRemConBearerInterface::GetCommand() */            

        TInt GetCommand(TUid& aInterfaceUid, 

            TUint& aTransactionId, 

            TUint& aCommand, 

            RBuf8& aData, 

            TRemConAddress& aAddr);

        /** @see MRemConBearerInterface::SendResponse() */

        TInt SendResponse(TUid aInterfaceUid, 

            TUint aOperationId, 

            TUint aTransactionId, 

            RBuf8& aData, 

            const TRemConAddress& aAddr);

        /** @see MRemConBearerInterface::ConnectRequest() */

        void ConnectRequest(const TRemConAddress& aAddr);

        /** @see MRemConBearerInterface::DisconnectRequest() */        

        void DisconnectRequest(const TRemConAddress& aAddr);

        /** @see MRemConBearerInterface::ClientStatus() */        

        void ClientStatus(TBool aControllerPresent, TBool aTargetPresent);

        /** @see MRemConBearerInterface::SecurityPolicy() */        

        TSecurityPolicy SecurityPolicy() const;

    private: // from MCallBackReceiver

        /** @see MCallBackReceiver::ReceivedKeyEvent() */            

        void ReceivedKeyEvent(TInt aScanCode, TInt aKeyType);

    private:

        /**

        * SetSVKOperationIdAndData

        * Assigns the Operation Id and Data field based on the aEnumValue

        * for SVK keys

        */

        void SetSVKOperationIdAndData(TInt aEnumValue);

        /**

        * SetMediaKeyOperationIdAndData

        * Assigns the Operation Id and Data field based on the aEnumValue

        * for Media Keys

        */

        void SetMediaKeyOperationIdAndData(TInt aEnumValue);

    private: // Data

        // Last received and corrected-decoded message.

        TUid iInterfaceUid;

        TUint iOperationId;

        TBuf8<KDataBufferSize> iData; 

        TUint iTransactionId;

        CMMKeyBearerObserver* iMMKeyBearerObserver;

        CMMKeyBearerObserver* iMediaKeyObserver;

        CMMKeyBearerObserver* iAccessoryVolKeyObserver;

        CMMKeyBearerObserver* iUSBFileTransferObserver;

        TInt iUSBFileTransfer;

        // For posting event to P&S 

        RProperty iProperty;

        // For keylock interaction

#endif // __MMKEYBEARERIMPLEMENTATION_H__