/*

* Copyright (c) 2002-2004 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:  Communication channel to Accessory server

*

*/

#ifndef CASYPROXYCOMMSSERVICE_H

#define CASYPROXYCOMMSSERVICE_H

// INCLUDES

#include "ASYProxyCommandObserver.h"

#include "AccessoryAsyComms.h"

#include <AsyCmdTypes.h>

#include <e32std.h>

#include <e32base.h>

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class CASYProxyCommsStack;

class CASYCommandHandlerBase;

class CASYMainServiceBase;

// CLASS DECLARATION

/**

*  Creates communication channel to Accessory server

*    using RAccessoryAsyComms -client.

*  Creates CASYCommandHandlerBase -object, handler part of ASY.

*

*  @lib ASYProxy.dll

*  @since S60 3.1

*/

class CASYProxyCommsService : public CBase

    {

    public: // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CASYProxyCommsService* NewL( const TUid aHandlerUid,

                                            const TUid aMainServiceUid );

        /**

        * Destructor.

        */

        virtual ~CASYProxyCommsService();

    public: // New functions

        /**

        * Creates CASYCommandHandlerBase -object.

        * @since S60 3.1

        * @param aASYProxyCommandObserver Pointer to Observer object

        * @return void

        */

        void CreateAsyCommandHandlerL(

                    CASYProxyCommandObserver* aASYProxyCommandObserver );

        /**

        * Gets session to Accessory server

        * @since S60 3.1

        * @param void

        * @return Session to server

        */

        RAccessoryServer& GetServerSession();

    public: // Functions from base classes

    protected: // New functions

    protected: // Functions from base classes

    private:

        /**

        * C++ default constructor.

        */

        CASYProxyCommsService( const TUid aHandlerUid );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL( const TUid aMainServiceUid );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        void Destroy( TInt aTrId );

        void UpdateAsyCommsStackL();

    public:     // Data

        // Pointer to a ASYMainService

        CASYMainServiceBase* iAsyMainServiceBase; // Not owned

    protected:  // Data

    private:    // Data

        // Client API of Accessory server

        RAccessoryAsyComms iAsyComms;

        // Implementation uid of ASY's handler object to be created

        TUid iHandlerUid;

        // Pointer to a commands stack object

        CASYProxyCommsStack* iAsyProxyCommsStack; // Owned

        // Pointer to a handler object of ASY.

        //  This class creates

        //  CASYProxyCommandObserver deletes

        CASYCommandHandlerBase *iAsyCmdHndlr;

        // Accessory server's client

        RAccessoryServer iServer;

        // Dummy observer for zero ( non existing ) handler

        // This AO is needed for obligatory CActiveScheduler::Start()

        CASYProxyCommandObserver* iZeroObserver;

    public:     // Friend classes

    protected:  // Friend classes

    private:    // Friend classes

        friend class CASYProxyCommandObserver;

    };

#endif // CASYPROXYCOMMSSERVICE_H

// End of File