/*

* Copyright (c) 2002-2009 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 CCLFITEMLISTMODELIMPL_H

#define CCLFITEMLISTMODELIMPL_H

//  INCLUDES

#include <MCLFItemListModel.h>

#include "MCLFItemProviderObserver.h"

#include "MCLFChangedItemProvider.h"

#include <badesca.h>

// FORWARD DECLARATIONS

class MCLFOperationObserver;

class CCLFDefaultOperation;

class TResourceReader;

class CCLFDbItemProvider;

class CCLFDbItemContainer;

// CLASS DECLARATION

/**

*  This class implements MCLFItemListModel and MCLFItemProviderObserver

*  interfaces

*

*  @lib ContentListingFramework.lib

*  @since Series 60 3.0

*/

NONSHARABLE_CLASS( CCLFItemListModelImpl ) : public CBase,

                                             public MCLFItemListModel,

                                             public MCLFItemProviderObserver,

                                             public MCLFChangedItemProviderObserver

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CCLFItemListModelImpl* NewLC(

                            CCLFDbItemProvider* aItemProvider,

                            MCLFOperationObserver& aObserver,

                            MCLFChangedItemProvider& aChangedItemProvider );

        /**

        * Two-phased constructor.

        */

        static CCLFItemListModelImpl* NewLC(

                            CCLFDbItemProvider* aItemProvider,

                            MCLFOperationObserver& aObserver,

                            MCLFChangedItemProvider& aChangedItemProvider,

                            TResourceReader& aResource );

        /**

        * Destructor.

        */

        virtual ~CCLFItemListModelImpl();

    protected:  // New functions

        void ReadMimeTypeListL( TResourceReader& aResource );

        void ReadMediaTypeListL( TResourceReader& aResource );

        void CheckVersionL( TResourceReader& aResource,

                            TInt aVersion );

        void CopyArrayL( const TArray<MCLFItem*>& aSource,

                         RPointerArray<MCLFItem>& aDest );

        void ResetMimeTypeArrayL();

        void ResetMediaTypeArrayL();

    protected:  // Functions from base classes

        /**

        * From MCLFItemListModel

        */

        const MCLFItem& Item( TInt aIndex ) const;

        /**

        * From MCLFItemListModel

        */

        TInt ItemCount() const;

        /**

        * From MCLFItemListModel

        */

        void SetSortingStyle( MCLFSortingStyle* aSortingStyle );

        /**

        * From MCLFItemListModel

        */

        void AppendSecondarySortingStyleL(

                                MCLFSortingStyle& aSortingStyle );

        /**

        * From MCLFItemListModel

        */

        void SetCustomSorter( MCLFCustomSorter* aCustomSorter );

        /**

        * From MCLFItemListModel

        */

        void SetGroupingStyle( TCLFGrouping aGrouping );

        /**

        * From MCLFItemListModel

        */

        void SetCustomGrouper( MCLFCustomGrouper* aCustomGrouper );

        /**

        * From MCLFItemListModel

        */

        void SetPostFilter( MCLFPostFilter* aPostFilter );

        /**

        * From MCLFItemListModel

        */

        void SetWantedMimeTypesL( const MDesCArray& aMimeTypes );

        /**

        * From MCLFItemListModel

        */

        void SetWantedMimeTypesL( TResourceReader& aResource );

        /**

        * From MCLFItemListModel

        */

        void SetWantedMediaTypesL(

                            const TArray<TInt>& aMediaTypes );

        /**

        * From MCLFItemListModel

        */

        void SetWantedMediaTypesL( TResourceReader& aResource );

        /**

        * From MCLFItemListModel

        */

        void RefreshL( );

        /**

        * From MCLFItemListModel

        */

        void RefreshL( TInt32 aRefreshType );

        /**

        * From MCLFItemListModel

        */

        void CancelRefresh();

        /**

        * From MCLFItemProviderObserver

        */

        void OperationCompleteL( TInt aError );

        void NewChangedItemsL(); 

    private:

        /**

        * C++ default constructor.

        */

        CCLFItemListModelImpl(

                CCLFDbItemProvider* aItemProvider,

                MCLFOperationObserver& aObserver,

                MCLFChangedItemProvider& aChangedItemProvider );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        void ConstructL( TResourceReader& aResource );

    private:    // Data

        // Own. items

        RPointerArray< MCLFItem > iItemArray;

        // Ref. items

        RPointerArray< MCLFItem > iResultArray;

        // Own mime type list

        CDesCArray* iMimeTypeArray;

        // Own media type list

        CArrayFix< TInt >* iMediaTypeArray;

        // Ref.

        MCLFCustomGrouper* iGrouper;

        // Ref.

        MCLFCustomSorter* iSorter;

        // Ref.

        MCLFPostFilter* iPostFilter;

        // Own

        CCLFDbItemProvider* iItemProvider;

        // Ref.

        MCLFOperationObserver& iOperationObserver;

        // Own.

        CCLFDefaultOperation* iDefaultOperation;

        // Own: this arrays ows sortings styles that are read from resource.

        RPointerArray< MCLFSortingStyle > iSortingStyleArray;

        // Ref:

        MCLFChangedItemProvider& iChangedItemProvider;

        // Own

        TBool iIsItemsFetched;

    };

#endif      // CCLFITEMLISTMODELIMPL_H

// End of File