/*

* Copyright (c) 2002 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: 

*     Contact model ECOM sort plugin

*

*/

#ifndef __CCntSortPlugin_H__

#define __CCntSortPlugin_H__

// INCLUDES

#include <cntviewsortplugin.h>

// FORWARD DECLARATIONS

class CSortUtil;

class CSortKeyArray;

// CLASS DECLARATION

/**

 * This class implements the functionality promised by 

 * the CViewContactSortInterfaceDefinition definition class.

 */

class CCntSortPlugin : public CViewContactSortPlugin

    {

    public: // Construction / Destruction

        /**

         * Two phase static constructor.

         * @param aParams Parameters for construction.

         * @return Newly created instance of CCntSortPlugin.

         */

        static CCntSortPlugin* NewL(TAny* aParams);

        ~CCntSortPlugin();

    private:	// From CContactViewSortConfigInterface

        void SetSortOrderL(const RContactViewSortOrder& aViewSortOrder);

        TInt SortStart(TSortStartTypes aSortStartType, TInt aCount);

        void SortCompleted();

        TInt SortCompareViewContactsL

            (const CViewContact& aLhs, const CViewContact& aRhs);

        TInt ApiCompareViewContactsL

            (const CViewContact& aLhs, const CViewContact& aRhs);

        TInt CompareViewContactsL(const CViewContact& aLhs, const CViewContact& aRhs);

        TBool ViewContactIsSortable(const CViewContact& aViewContact);

    private: // Implementation

        /**

         * Standard C++ constructor.

         */

        CCntSortPlugin();

        /**

         * 2nd phase constructor.

         */

        void ConstructL(TSortPluginParams* aParams);

        /**

         * Do the actual sort starting.

         * @param aSortStartType Type of the sort to start.

         * @param aCount Approximate number of contacts to process.

         */

        void DoSortStartL(TSortStartTypes aSortStartType, TInt aCount);

    private: // Data

        /// Own: The sort util

        CSortUtil* iSortUtil;

        /// Currently active sort order

        RContactViewSortOrder iSortOrder;

        /// Ref: Is sortable function 

	    TBool(*iIsSortable)(const CViewContact& aViewContact);

        /// Own: sort key array for left hand side

        CSortKeyArray* iLeftSortKeyArray;

        /// Own: sort key array for right hand side

        CSortKeyArray* iRightSortKeyArray;

    };

#endif // __CCntSortPlugin_H__

// End of File