/*

* Copyright (c) 2006 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:  It completes on a change in the volume property.  Used for 

*                the new Central Repository Server.  Used in EKA2 builds only

*

*/

#ifndef VOLUMEKEYLISTENER_H

#define VOLUMEKEYLISTENER_H

#include <e32std.h>

#include <e32base.h>

#include <e32property.h>

#include <centralrepository.h>

#include<remconcoreapitargetobserver.h>    //for MRemConCoreApiTargetObserver

#include<remconinterfaceselector.h>     //for CRemConInterfaceSelector

#include<remconcoreapitarget.h>         //for CRemConCoreApiTarget

//

// for emulator max volume = 65535

#define WINS_DEFAULT_VOLUME 43690

//

// For HW max volume = 9

#define HW_DEFAULT_VOLUME 6

class MRepositoryVolumeObserver;

// DATA TYPES

// Used for volume up/down events

enum TVolumeControlCommands

    {

    EVolumeControlCmdVolumeUpByOne,

    EVolumeControlCmdVolumeDownByOne

    };

NONSHARABLE_CLASS( CVolumeKeyListener ) : public CBase, 

                                  public MRemConCoreApiTargetObserver

    {

public:

    static CVolumeKeyListener* NewL( MRepositoryVolumeObserver* aObserver );

    virtual ~CVolumeKeyListener();

    TInt GetCurrentVolume();

    /**

     * Function to add an observer

     */

    void SetObserver( MRepositoryVolumeObserver* aObserver ); 

private:

    CVolumeKeyListener( MRepositoryVolumeObserver* aObserver );

    void ConstructL();

    //From MRemConCoreApiTargetObserver (remconcoreapitargetobserver.h)

    void MrccatoCommand( TRemConCoreApiOperationId aOperationId, 

                         TRemConCoreApiButtonAction aButtonAct );

    /**

      * Handle repeat event

      */

    void HandleRepeatEvent();

    /**

    * Send play command to app UI or view.

    * @since 3.1

    */

    void FilterAndSendCommand(TInt aCommandId);

   /**

    * Callback for timer

    */

    static TInt TimerCallback(TAny* aPtr);

private:

    CRemConCoreApiTarget* iInterfaceSelector;

    CRemConInterfaceSelector* iSelector;

    CRepository* iCenRepos;

    CPeriodic* iTimer;                                   // owned

    TInt iCommandId;

    // Stores the observers.

    MRepositoryVolumeObserver* iObserver;

    };

#endif  //VOLUMEKEYLISTENER_H

// End of File