/*

* Copyright (c) 2005 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:  This is the class handles Message Handling between Audio Resrouce

*                and Adaption layer

*

*

*/

#ifndef CAUDIORESOURCEPROXYAO_H

#define CAUDIORESOURCEPROXYAO_H

//  INCLUDES

#include <e32base.h>

#include <mmfcontrollerframework.h>

#include <MCustomCommand.h>

// FORWARD DECLARATIONS

class CCustomCommandUtility;

class CAudioResourceUtilityProxy;

//class CAudioOutput;

// CLASS DECLARATION

/**

*  This is the Audio Resource proxy Active object class responsible for handling callback messages.

*

*  @lib AudioResourceProxy.lib

*  @since 3.0

*/

class CAudioResourceProxyAO : public CActive

    {

    public:

        /**

        * Two-phased constructor.

        */

        static CAudioResourceProxyAO* NewL(CAudioResourceUtility *aResourceProxy,

        								MAudioResourceUtilityObserver& aObserver,

        								MCustomCommand* aUtility);

        virtual ~CAudioResourceProxyAO();

		/**

        * Send Asyncronous Message

        * @since 3.0

        */

		void SendAsyncMessage(const TMMFMessageDestinationPckg& aDestination,

	                                      TInt aFunction );

		void SetRegisterFlag(TBool aFlag);

    private:

        /**

        * C++ default constructor.

        */

        CAudioResourceProxyAO(CAudioResourceUtility *aResourceProxy,

        					MAudioResourceUtilityObserver& aObserver,

        					MCustomCommand* aUtility);

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        void RunL();

        void DoCancel();

	private:

		CAudioResourceUtility*				iAudioResourceProxy;

		MAudioResourceUtilityObserver&		iObserver;

		MCustomCommand*				iCustomCommandUtility;

		const TMMFMessageDestinationPckg*				iDestination;

		TInt											iFunction;

		TBool											iRegistered;

    };

#endif 		// CAUDIORESOURCEPROXYAO_H