/*

* Copyright (c) 2007 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:  Observes Remote Controller Framework for volume key presses*

*/

#ifndef CAMVOLKEYOBSERVER_H

#define CAMVOLKEYOBSERVER_H

// INCLUDES

#include <remconcoreapitargetobserver.h>

#include "CamZoomPane.h"

// FORWARD DECLARATIONS

class CRemConInterfaceSelector;

class CRemConCoreApiTarget;

class CCamRemConKeyResponse;

class CCamZoomPane;

/**

* Observer interface for volume key events

* 

* since @3.1

*

*/

class MCamVolumeKeyObserver

	{

public:

	/**

	* Report volume keys events to observer

	* @since 3.1

	* @param aOperationId Volume key up Volume key down event

	* @param aButtonAct button action (press, release, click)

	*/

	virtual void HandleVolumeKeyEvent( TRemConCoreApiOperationId aOperationId,

                            			TRemConCoreApiButtonAction aButtonAct ) = 0;

	};

// CLASS DECLARATION

/**

*  Observes Remote Controller Framework

*  

*  @since 3.1

*/

class CCamRemConObserver 

    : public CBase, public MRemConCoreApiTargetObserver

    {

    public:  // Constructors and destructor      

        /**

        * Two-phased constructor.

        * @param aZoomPane zoom pane instance

        * @return new instance.

        */

        static CCamRemConObserver* NewL( MCamVolumeKeyObserver& aObserver );

        /**

        * Destructor.

        */

        ~CCamRemConObserver();

    public: // New functions

    protected:

        /**

        * from MRemConCoreApiTargetObserver interface class.

        * A command has been received. 

        * @param aOperationId The operation ID of the command.

        * @param aButtonAct The button action associated with the command.

        */

        void MrccatoCommand( TRemConCoreApiOperationId aOperationId, 

                             TRemConCoreApiButtonAction aButtonAct );

        /**

        * from MRemConCoreApiTargetObserver interface class.

        * not used

        */

        void MrccatoPlay(TRemConCoreApiPlaybackSpeed aSpeed, 

		                        TRemConCoreApiButtonAction aButtonAct);

        /**

        * from MRemConCoreApiTargetObserver interface class.

        * not used

        */

        void MrccatoTuneFunction(TBool aTwoPart, 

                        		TUint aMajorChannel, 

                        		TUint aMinorChannel,

                        		TRemConCoreApiButtonAction aButtonAct);

        /**

        * from MRemConCoreApiTargetObserver interface class.

        * not used

        */

        void MrccatoSelectDiskFunction(TUint aDisk,

                        		TRemConCoreApiButtonAction aButtonAct);

        /**

        * from MRemConCoreApiTargetObserver interface class.

        * not used

        */

        void MrccatoSelectAvInputFunction(TUint8 aAvInputSignalNumber,

                        		TRemConCoreApiButtonAction aButtonAct);

        /**

        * from MRemConCoreApiTargetObserver interface class.

        * not used

        */

        void MrccatoSelectAudioInputFunction(TUint8 aAudioInputSignalNumber,

                        		TRemConCoreApiButtonAction aButtonAct);

    private:

        /**

        * C++ default constructor.

        * @since 3.1

        * @param aZoomPane instance of zoom pane

        */

        CCamRemConObserver( MCamVolumeKeyObserver& aObserver );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private:    // Data

        // Remote Controller

        CRemConInterfaceSelector* iInterfaceSelector;  

        // Remote Controller

        CRemConCoreApiTarget* iCoreTarget;

        // Key response

        CCamRemConKeyResponse* iActiveRemCon;

        // zoom pane

        MCamVolumeKeyObserver& iObserver;

    };

#endif      // CAMVOLKEYOBSERVER_H

// End of File