/*

* 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:  NPP PSY status event report handler header file

*

*/

#ifndef NPPPSYSETTINGHANDLER_H

#define NPPPSYSETTINGHANDLER_H

//  INCLUDES

#include <e32base.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

class CRepository;

class CNppPsyStatusHandler;

/**

*  This class implements the handler that responsible for read and write

*  PSY list from Central Repository.

*  

*  This class owns an instance of CRepository.

*

*  @lib nlanpppsy.dll

*  @since 3.1

*/

class CNppPsySettingHandler : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Two - phased constructor.

        * @param aStatusHandler Referece to CNppPsyStatusHandler

        * @return Constructed object of CNppPsySettingHandler

        */

        static CNppPsySettingHandler* NewL( 

            CNppPsyStatusHandler& aStatusHandler );

        /**

        * Destructor.

        */

        ~CNppPsySettingHandler();

    public: // Functions from base classes

        /**

        * Get PSY list from setting

        * @param aList On return contains the PSY list

        */

        void GetPsyListL( RArray < TUid > &aList );

        /**

        * Move PSY to last

        * @param aPsy The Uid of the PSY that should be moved to the end

        *        of PSY priority list

        */

        void MovePsyLast( TUid aPsy );

        /**

        * Remove PSY from the list

        * @param aPsy The Uid of the PSY to be removed from setting

        */

        void RemovePsy( TUid aPsy );

    private: // From base classes

        /**

        * From CActive

        */

        void RunL();

        /**

        * From CActive

        */

        void DoCancel();

        /**

        * From CActive

        */

        TInt RunError( TInt aError );

    private:

        /**

        * C++default constructor.

        */

        CNppPsySettingHandler( CNppPsyStatusHandler& aStatusHandler );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Parse PSY list setting from CenRep

        */

        void ParseSettingL(

            TInt& aListFrozen, 

            RArray < TUid >& aPsyList );

        /**

        * Check if the key value in ROM contains different PSY or 

        * frozen flag. If it's different, then reset the key and

        * use the key value in ROM. 

        * 

        * This operation is needed when phone is restore to a old 

        * version of backup.

        */

        void ValidateRomKeyValueL();

        /**

        * Write setting. If the setting can't be writen, this function

        * will just return.

        */

        void WriteSetting(); 

        /**

        * This function will remove PSY UID which are there already in cenrep key which 

        * is configured during runtime.

        */

        void RemoveDuplicatePsyUid(RArray < TUid >& aToPsyList ,RArray < TUid >& aFromPsyList );

    private:    // Data

        //Status handler

        CNppPsyStatusHandler& iStatusHandler;

        //Central repository

        CRepository* iRepository;

        //Indicate if PSY list is frozen and frozen mode

        TInt iListFrozen;

        //Psy list

        RArray < TUid > iPsyList;

    };

#endif      // NPPPSYSETTINGHANDLER_H

// End of File