/*

* 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: 

*        Base class for Memory entry app views.

*

*/

#ifndef __CPbkMemoryEntryAppView_H__

#define __CPbkMemoryEntryAppView_H__

//  INCLUDES

#include "CPbkAppView.h"

#include <MPbkContactDbObserver.h>

#include <cntviewbase.h>

// FORWARD DECLARATIONS

class CPbkContactItem;

class CPbkContactChangeNotifier;

class CPbkFFSCheck;

class RSharedDataClient;

// CLASS DECLARATION

/**

 *  Base class for Memory entry app views.

 */

class CPbkMemoryEntryAppView :

        public CPbkAppView,

        private MPbkContactDbObserver,

        private MContactViewObserver

    {

    protected:  // Constructors and destructor

        /**

         * Default constructor.

         */

        CPbkMemoryEntryAppView();

        /**

         * Destructor.

         */

        ~CPbkMemoryEntryAppView();

    protected: // Base class interface

        /**

         * Command handler: Back softkey.

         */

        virtual void CmdBackL();

        /**

         * Delete contact command implementation.

         */

        virtual void CmdDeleteMeL();

        /**

         * Called by CmdDeleteMeL() to verify the deletion.

         *

         * @return ETrue if it is ok to delete the contact, EFalse otherwise.

         */

        virtual TBool DoAskDeleteL(CPbkContactItem& aContact);

        /**

         * Notifies derived class that the displayed contact has changed.

         * Default implementation does nothing.

         */

        virtual void ContactChangedL();

        /**

         * Returns the contact item this view is displaying currently.

         */

        virtual CPbkContactItem* ContactItemL() =0;

        /**

         * Returns the id of the contact item this view is displaying 

         * currently.

         */

        virtual TContactItemId ContactItemId() =0;

    protected:  // from CAknView

        /// This must be called from derived class implementation

	    void DoActivateL(const TVwsViewId& aPrevViewId,TUid aCustomMessageId,

            const TDesC8& aCustomMessage);

        /// This must be called from derived class implementation

	    void DoDeactivate();

    protected:  // from CPbkAppView

        void HandleCommandL(TInt aCommandId);

        TBool HandleCommandKeyL(const TKeyEvent& aKeyEvent, TEventCode aType);

    private:  // from MPbkContactDbObserver

        void HandleDatabaseEventL(TContactDbObserverEvent aEvent);

    private:  // from MContactViewObserver

	    void HandleContactViewEvent

            (const CContactViewBase& aView,const TContactViewEvent& aEvent);

    private:  // Implementation

        void HandleContactDeletedL();

        void FFSCheckL();

        void RequestFreeDiskSpaceLC();

        void DbCompactL();

    private:  // Data

        /// Ref: all contacts view

        CContactViewBase* iAllContactsView;

        /// Own: Contact database change notifier

        CPbkContactChangeNotifier* iContactChangeNotifier;

        /// Helper class

        class TDeletedContactData

            {

            public:  // Interface

				/**

				 * Constructor.

				 */

                TDeletedContactData();

				/**

				 * Sets deleted.

				 */

                void SetDeleted();

				/**

				 * Sets removed

				 */

                void SetRemoved();

				/**

				 * Returns ETrue if the item is deleted and removed.

				 */

                TBool IsDeletedAndRemoved() const;

				/**

				 * Sets the index to aIndex.

				 */

                void SetIndex(TInt aIndex);

				/**

				 * Returns the index.

				 */

                TInt Index() const;

				/**

				 * Performs reset.

				 */

                void Reset();

            private:  // Data

				/// Own: flags

                TUint iFlags;

				/// Own: index

                TInt iIndex;

            };

        /// Own: deleted contact data

        TDeletedContactData iDeletedContactData;        

        /// Own: Flash File System check helper

        CPbkFFSCheck* iPbkFFSCheck;

        /// Own: shared data client

        RSharedDataClient* iSharedDataClient;       

    };

// INLINE FUNCTIONS

inline CPbkMemoryEntryAppView::TDeletedContactData::TDeletedContactData()

    {

    Reset();

    }

inline CPbkMemoryEntryAppView::CPbkMemoryEntryAppView()

	{

	}

#endif // __CPbkMemoryEntryAppView_H__

// End of File