/*

* Copyright (c) 2009 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:

*

*/

#ifndef __MENUSRVMMCHISTORY_H__

#define __MENUSRVMMCHISTORY_H__

#include <e32base.h>

// FORWARD DECLARATION

class CMenuEng;

class RFs;

/**

* MMC History.

* Stores a fixed number of MMC ids. When new ID-s are inserted,

* old ones are purged. Supports file persistence.

*/

NONSHARABLE_CLASS( CMenuSrvMmcHistory ): public CBase

    {

public:     // construction

    /**

    * Destructor.

    */

    virtual ~CMenuSrvMmcHistory() { iMmcList.Close(); }

    /**

    * Constructor.

    */

    CMenuSrvMmcHistory() {}

public:     // new methods

    /**

    * Load from file. Safe to call if file does not exist.

    * @param aFs File Server Session.

    * @param aFname File name.

    */

    void LoadL( RFs& aFs, const TDesC& aFname );

    /**

    * Save to file. Existing file overwritten.

    * @param aFs File Server Session.

    * @param aFname File name.

    */

    void SaveL( RFs& aFs, const TDesC& aFname );

    /**

    * Insert new ID to first position.

    * If ID is already in the history, now it is moved to first

    * position (->latest).

    * If history is full, oldest ID may be dropped from history.

    * @param aMmc MMC ID.

    */

    void InsertL( TUint aMmc );

    /**

    * Find ID in history.

    * @param aMmc MMC ID.

    * @return History index, or KErrNotFound.

    */

    TInt Find( TUint aMmc ); // Find mmc in history.

private:    // data

    RArray<TUint> iMmcList; ///< ID history list. Own.

    };

#endif // __MENUSRVMMCHISTORY_H__