/*

* Copyright (c) 2006-2007 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:  Main class in the Memory manager component

*

*/

#ifndef C_CMMMMAIN_H

#define C_CMMMMAIN_H

#include <e32base.h>

#include <badesca.h> // CDesCArray

#include <f32file.h> // RFs

#include "cmcommon.h" // TCmListItemStatus

// Forward declarations

class MCmMmObserver;

class MMPXHarvesterUtility;

class CCmMmQuotaListener;

class CCmMmShrinker;

class CCmDmMain;

class MMPXCollectionHelper;

/**

 *  CCmMmMain class

 *  Memory manager

 *

 *  @lib cmmemorymanager.lib

 *  @since S60 v3.0

 */

class CCmMmMain : public CBase

    {

public: // Symbian constructors and C++ destructor

    /**

     * Creates new CCmMmMain class

     *

     * @since S60 v3.0

     * @param aDbManager

     * @return pointer to CCmMmMain object

     */

    IMPORT_C static CCmMmMain* NewL( CCmDmMain& aDbManager );

    /**

     * Creates new CCmMmMain class and leaves the instance

     * in the cleanup stack

     *

     * @since S60 v3.0

     * @param aDbManager

     * @return  pointer to CCmMmMain object

     */

    IMPORT_C static CCmMmMain* NewLC( CCmDmMain& aDbManager );

    /**

     * @since S60 v3.0

     *

     * C++ destructor

     */

    IMPORT_C virtual ~CCmMmMain();

public: // New methods

    /**

     * Cancels deletion and shrinking

     *

     * @since S60 3.0

     */

    IMPORT_C void Cancel();

    /**

     * Deletes files from array

     *

     * @since S60 3.0

     * @param aFiles

     */

    IMPORT_C void DeleteFilesL( CDesCArray& aFiles );

    /**

     * Sets observer

     *

     * @since S60 3.0

     * @param aObserver

     */

    IMPORT_C void SetObserver( MCmMmObserver& aObserver );

    /**

     * Sets quotalistener on/off

     *

     * @since S60 3.0

     * @param aState

     */

    IMPORT_C void SetQuotaListenerStateL( TBool aState );

    /**

     * Shrinks files from array

     *

     * @since S60 3.0

     * @param aFiles

     */

    IMPORT_C void ShrinkImagesL( CDesCArray& aFiles );

    /**

     * Tells MMC state

     *

     * @since S60 3.0

     * @param aFileServer

     * @param aDriveNumber

     * @return ETrue if Drive is usable and else EFalse

     */

    static TBool CCmMmMain::DriveState( 

        const RFs& aFileServer, 

        TInt aDriveNumber );

private: // Constructors

    /**

     * C++ constructor

     *

     * @since S60 3.0

     * @param aObserver

     */

    CCmMmMain( CCmDmMain& aDbManager );

    /**

     * Second-phase constructor

     *

     * @since S60 3.0

     */

    void ConstructL();

private: // New methods

    /**

     * Static callback method for deletion

     *

     * @since S60 3.0

     * @param aMm

     */

    static TInt BackgroundDeleteL( TAny* aMm );

    /**

     * Deletes files in background

     *

     * @since S60 3.0

     * @return ETrue if Drive is usable and else EFalse

     */

    TInt DoBackgroundDeleteL();

    /**

     * Delete the collection hepler

     *

     * @since S60 3.0

     */

    void CloseMpxCollectionHelper();

private: // data

    TInt                                iDeleteIndex;

    RFs                                 iFileSession;

    TBool                               iQuotaListenerState;            

    CCmDmMain&                          iDbManager;

    CIdle*                              iDeleter;               // owned

    CDesCArray*                         iFilesToDelete;         // owned

    CDesCArray*                         iFilesToShrink;         // owned   

    MMPXHarvesterUtility*               iHarvester;             // owned

    MCmMmObserver*                      iObserver;              // now owned

    CCmMmShrinker*                      iShrinker;              // owned

    RPointerArray<CCmMmQuotaListener>   iQuotaListeners;        // owned

    MMPXCollectionHelper*               iMpxCollectionHelper;   // owned

    };

#endif // C_CMMMMAIN_H