/*

* Copyright (c) 2005 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 : Editor DataBase fields functionality for Meeting entry types

  *

  */

#ifndef CALENDBFIELD_H

#define CALENDBFIELD_H

// system includes

#include <e32base.h>

#include <badesca.h>

// forward declaration

class CCalEntry;

class CCalenUnifiedEditor;

class CAknQueryValueTextArray;

class CAknQueryValueText;

class MCalenServices;

/**

 * Implements Calendar field for Calendar Editors.

 */ 

NONSHARABLE_CLASS( CCalenDbField ) : public CBase

    {

    public: // Constructors and destructor

        /**

         * @brief Two-phased constructor.

         * @param aUnifiedEditor     

         */

        static CCalenDbField* NewL( CCalenUnifiedEditor& aUnifiedEditor, MCalenServices& aServices );

        /**

         * @brief Destructor.

         */

        virtual ~CCalenDbField();

    public:

    	/**	 

         * @brief Updates fields just before the form is shown

         */

        void InitDbFieldLayoutL();

        /**

         * @brief Update data in editor

         */    

        void SetDataToEditorL();

        /**

         * @brief Read data from form

         */    

        void ReadDataFromFormL( TBool aContinueOnError );

        /**

         * @brief Prepares for focus transition

         * @param aFocusedId

         */    

        void PrepareForFocusTransitionL( TInt aFocusedId );

        /**

         * @brief To habdle the control state change

         * @param aFocusedId

         */

        void HandleControlStateChangeL( TInt aControlId );

        /*

         * @brief Get calendar name for where entry belongs to

         * @return TDesC reference to name of the calendar

         */

        const TDesC& GetCalendarNameForEntryL();

        /*

         * @brief check if calendar is changed or not

         * @return TBool true if calendar is chnaged

         */

        TBool IsCalendarEdited();

        /*

         * @brief Get calendar index from popuplist for entry

         * @return TInt index from popuplist

         */

		TInt GetCalendarIndexForEntryL();

    private:

        /**

         * @brief C++ constructor

         * @param aUnifiedEditor 

         */

        CCalenDbField( CCalenUnifiedEditor& aUnifiedEditor, MCalenServices& aServices );

    	/**

         * @brief second phase constructor

         */

        void ConstructL();

         /*

          * @brief calendar name finder from array

          * 

          * @param aName name of item in array

          * @param aInfoItem item to be found

          * @return TBool item found or not

          */

         static TBool CalendarInfoNameIdentifierL( const HBufC* aName,

                                    const CCalCalendarInfo& aInfoItem );

         /**

          * @brief show infonote when database changes and entry having

          * childs.

          */

         void ShowChangeDBQueryL();

         /*

          * Callback for CAsyncCallBack class

          * @param aThisPtr* this pointer.

          * @return TInt status.

          */         

         static TInt DoAsyncShowChangeDBQueryL(TAny* aThisPtr);

         /**

          * @brief Update data in editor

          * @param aColId collection Id of selected database

          */    

         void SetDataToEditorL(const TCalCollectionId& aColId);

    public:

         //previous calendar collection id  

         TCalCollectionId iPreviousColId;

         //current collection id

         TCalCollectionId iCurrentColId;

    private:

        /**

         * @var iUnifiedEditor

         * @brief Reference to CCalenUnifiedEditor

         */ 

        CCalenUnifiedEditor& iUnifiedEditor;   

        /**

         * @var iDbNamesArrayText

         */

        CDesCArrayFlat* iDbNamesArrayText;

        /**

         * @var iDbNamesArray

         */

        CAknQueryValueTextArray* iDbNamesArray;

        /**

         * @var iDbNamesTextValues

         */

        CAknQueryValueText* iDbNamesTextValues;

        TInt iPreviousIndex;

        TInt iCurrentIndex;

        //services referance not owned

        MCalenServices* iServices;

        HBufC* iCalendarFileName;

        CAsyncCallBack* iAsyncDBquery;        

    };

#endif // CALENDBFIELD_H

// End of File