/*

* 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:  Contains the implementation of response area

 *

*/

#ifndef CESMRRESPONSEFIELD_H

#define CESMRRESPONSEFIELD_H

// INCLUDES

#include <e32base.h>

#include <fbs.h>

#include "cesmrfield.h"

#include "resmrpluginextensionstatic.h"

// FORWARD DECLARATIONS

class CLayoutManager;

class MESMRResponseObserver;

class CESMRConflictPopup;

class CESMRResponseItem;

/**

 * Response field is the actual field that receives focus when scrolling in the

 * viewer list. This field constructs the items and sets texts, fonts and sizes for those,

 * This field is also responsible of scrolling between the items and calling the response observer

 * when answer is selected (e.g. by pressing accept item).

 */

NONSHARABLE_CLASS( CESMRResponseField ) : public CESMRField

    {

    public:

        /**

         * Creates new response field. Response field is responsible

         * of creating all the items needed in the area.

         * @return New response field object.

         */

        static CESMRResponseField* NewL(MESMRResponseObserver* aResponseObserver);

        /**

         * C++ Destructor.

         */

        ~CESMRResponseField();

    public: // From CCoeControl

        TInt CountComponentControls() const;

        CCoeControl* ComponentControl( TInt aInd ) const;

        void SizeChanged();

        TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,  TEventCode aType );

        void FocusChanged( TDrawNow aDrawNow );

        TSize MinimumSize();

    public: // From CESMRField

        void InitializeL();

        void InternalizeL( MESMRCalEntry& aEntry );

        TBool ExecuteGenericCommandL( TInt aCommand );

        void SetOutlineFocusL( TBool aFocus );

        TBool HandleSingletapEventL( const TPoint& aPosition );

        void HandleLongtapEventL( const TPoint& aPosition );

    public: // New methods

        /**

         * Set the response observer for this class.

         *

         * @param aResponseObserver - Response observer

         */

        void AddObserver( MESMRResponseObserver* aResponseObserver );

        /**

         * Calls onwards the SetFont() method for all the items in the array

         *

         * @param aFont - Font to be set.

         */

        void SetFont( const CFont* aFont );

        /**

         * Selects the current item.

         * @return ETrue if item is selectable

         */

        TBool ItemSelectedL();

    private: // Implementation

        CESMRResponseField(MESMRResponseObserver* aResponseObserver);

        void ConstructL();

        void HandleCancelledEventItemsL( MESMRCalEntry& aEntry );

        TBool HandleTapEventL( const TPoint& aPosition );

    private:

        /// Own: Conflict popup

        CESMRConflictPopup* iConfPopup ;

        /// Array for the response items. Owns the items.

        RPointerArray <CESMRResponseItem> iResponseItemArray;

        /// Observer for the response

        MESMRResponseObserver* iResponseObserver;

        TInt iSelectionIndex;

        /// Font for the label text

        const CFont* iFont;

        /// Own: Static TLS data handler

        RESMRPluginExtensionStatic iESMRStatic;

        /// iESMRstatic accessed

        TBool iESMRStaticAccessed;

        /// whether a normal response

        /// whether a remove response

        /// Judge if there is any event conflict with current event.

        TBool iConflicted;

        /// Judge whether it has implemented HandleSingletapEventL

        TBool iPointEvent;

        /// To avoid the same event be handled by

        /// HandleSingletapEventL() when HandleLongtapEventL().

        TBool iLongTapEventConsumed;

    };

#endif // CESMRRESPONSEFIELD_H