/*

* 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:  Remote connection observer interface declaration.

*

*/

#ifndef BTASBAUDIOSERVICEPLUGIN_H

#define BTASBAUDIOSERVICEPLUGIN_H

//  INCLUDES

#include <e32base.h>

#include <remcon/remconbearerplugin.h>

#include <remcon/remconbearerinterface.h>

#include <remcon/messagetype.h>

#include <remconaddress.h>

#include <bttypes.h>

#include "atcodec.h"

#include "playercontrolistener.h"

// FORWARD DECLARATIONS

class CBmbCmdListener;

/**

*  RemCon bearer plugin implementation for BT Audio Service.

*/

class CBmbPlugin 

:   public CRemConBearerPlugin,

    public MRemConBearerInterface,

    public MBmbPlayerControl

	{

    public:

        /**

        * Two-phased constructor.

        * @param aParams   

        */

    	static CBmbPlugin* NewL(TBearerParams& aParams);

    	~CBmbPlugin();

        void DataFromRemote(const TDesC8& aATCmd);

    private: // from CRemConBearerPlugin

    	/**

    	* Called by RemCon server to get a pointer to an object which implements the 

    	* bearer API with UID aUid. This is a mechanism for allowing future change 

    	* to the bearer API without breaking BC in existing (non-updated) bearer 

    	* plugins.

    	* @return the pointer of this implementation

    	*/    

	    TAny* GetInterface(TUid aUid);

    private: // from MRemConBearerInterface

    	/** 

    	* Called by RemCon to retrieve a response on a connection. Must only be 

    	* called as a result of a NewResponse upcall.

    	* @param aInterfaceUid The UID of the outer-layer client API specifying the 

    	*         response.

    	* @param aId The command identifier used as a cookie for command/response 

    	*        matching.

    	* @param aOperationId The ID of the response operation in the outer-layer 

    	*        client API.

    	* @param aData API-specific message data. On success, ownership is 

    	*        returned.

    	* @param aAddr The connection.

    	*/    

    	TInt GetResponse(

    	    TUid& aInterfaceUid, 

    		TUint& aTransactionId, 

    		TUint& aOperationId, 

    		RBuf8& aData, 

    		TRemConAddress& aAddr);

    	/** 

    	* Called by RemCon to send a command on a connection. Must only be 

    	* called as a result of a NewCommand upcall.

    	* @param aInterfaceUid The UID of the outer-layer client API specifying the 

    	*        command.

    	* @param aId The command identifier used as a cookie for command/response 

    	*        matching.

    	* @param aOperationId The ID of the command operation in the outer-layer 

    	*        client API.

    	* @param aData API-specific message data. On success, ownership is 

    	*        returned.

    	* @param aAddr The connection.

    	*/    		

    	TInt SendCommand(

    	    TUid aInterfaceUid, 

    		TUint aCommand, 

    		TUint aTransactionId,  

    		RBuf8& aData, 

    		const TRemConAddress& aAddr);

    	/** 

    	* Called by RemCon to retrieve a command on a connection. The connection is not 

    	* assumed to exist- the bearer is responsible for bringing up the requested 

    	* connection if necessary.

    	* @param aInterfaceUid The UID of the outer-layer client API specifying the 

    	*        command.

    	* @param aOperationId The ID of the command operation in the outer-layer 

    	*        client API.

    	* @param aId The command identifier used as a cookie for command/response 

    	*        matching.

    	* @param aData API-specific message data. On success, ownership is passed. 

    	* @param aAddr The connection.

    	* @return Error. This request is synchronous. It should be completed by the 

    	* bearer when it has taken responsibility for sending the message. This will 

    	* involve checking that the message is well-formed, and possibly actually 

    	* trying to send it, or adding it to a queue.

    	*/    		

    	TInt GetCommand(

    	    TUid& aInterfaceUid, 

    		TUint& aTransactionId, 

    		TUint& aCommand, 

    		RBuf8& aData, 

    		TRemConAddress& aAddr);

    	/** 

    	* Called by RemCon to send a response on a connection. The connection is not 

    	* assumed to exist- the bearer is responsible for bringing up the requested 

    	* connection if necessary.

    	* @param aInterfaceUid The UID of the outer-layer client API specifying the 

    	*        response.

    	* @param aOperationId The ID of the response operation in the outer-layer 

    	*       client API.

    	* @param aId The command identifier used as a cookie for command/response 

    	*        matching

    	* @param aData API-specific message data. On success, ownership is passed.

    	* @param aAddr The connection.

    	* @return Error. This request is synchronous. It should be completed by the 

    	* bearer when it has taken responsibility for sending the message. This will 

    	* involve checking that the message is well-formed, and possibly actually 

    	* trying to send it, or adding it to a queue.

    	*/    		

    	TInt SendResponse(

    	    TUid aInterfaceUid, 

    		TUint aOperationId, 

    		TUint aTransactionId, 

    		RBuf8& aData, 

    		const TRemConAddress& aAddr);

    	/** 

    	* Called by RemCon to establish a bearer-level connection to another party. 

    	* Completion is signalled back in ConnectConfirm.

    	* @param aAddr The RemCon address to connect to.

    	*/    		

    	void ConnectRequest(const TRemConAddress& aAddr);

    	/** 

    	* Called by RemCon to destroy a bearer-level connection to another party. 

    	* Completion is signalled back in DisconnectConfirm.

    	* @param aAddr The RemCon address to disconnect from.

    	*/    	

    	void DisconnectRequest(const TRemConAddress& aAddr);

    	/**

    	* Called by RemCon when either (a) the number of controller clients changes 

    	* from 0 to 1 or from 1 to 0, or (b) the number of target clients changes 

    	* from 0 to 1 or from 1 to 0.

    	*/    	

    	void ClientStatus(TBool aControllerPresent, TBool aTargetPresent);

    	/**

    	* Called by RemCon to get the capabilities required to make/destroy 

    	* connections over the bearer, and to send and receive messages over the 

    	* bearer.

    	@return The bearer's security policy.

    	*/    	

    	TSecurityPolicy SecurityPolicy() const;        

    private:

        // From MBmbPlayerControl

        void Pause();

        void Play();

    private:

        /**

        * C++ default constructor.

        */

    	CBmbPlugin(TBearerParams& aParams);

        /**

        * Symbian 2nd phase constructor.

        */    	

    	void ConstructL();

    private: // owned

    	// Last received and corrected-decoded message.

    	TUid iInterfaceUid;

    	TUint iTransactionId;

    	TUint iOperationId;

    	TRemConMessageType iMsgType;

        TRemConAddress iRemConAddress;

        CBTAudioPlayerControlListener *iPlayerControlListener;       

        CBmbCmdListener *iListener; 

        TBool iConnIndicated;

	};

#endif // BTASBAUDIOSERVICEPLUGIN_H