/*

* Copyright (c) 2005-2007 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:  Phonebook 2 view explorer.

*

*/

#ifndef CPBK2VIEWEXPLORER_H

#define CPBK2VIEWEXPLORER_H

//  INCLUDES

#include <e32base.h>

#include <vwsdef.h> // TVwsViewId

#include <MPbk2ViewExplorer.h>

//  FORWARD DECLARATIONS

class CPbk2AppUi;

class CPbk2ViewState;

class CEikImage;

class CPbk2ViewGraph;

class MPbk2ViewActivationTransaction;

//  CLASS DECLARATION

/**

 * Phonebook 2 view explorer.

 * The view explorer is responsible for creating the 

 * view graph from resources and applying view graph changes from

 * UI extension. The application views are created by this class

 * from the view graph nodes and the application views can be 

 * switched.

 */

class CPbk2ViewExplorer : 

        public CBase,

        public MPbk2ViewExplorer

    {

    public:  // Constructors and destructor

        /**

         * Creates a new instance of this class.

         *

         * @param aAppUi    Reference to Phonebook 2 application UI.

         * @return  A new instance of this class.

         */

        static CPbk2ViewExplorer* NewL(

                CPbk2AppUi& aAppUi );

        /**

         * Destructor.

         */

        ~CPbk2ViewExplorer();

    public: // Interface

        /**

         * Creates application views.

         */

         void CreateViewsL();

    public: // From MPbk2ViewExplorer

        TBool IsPhonebook2View(

                const TVwsViewId& aViewId ) const;

        void ActivatePhonebook2ViewL(

                TUid aViewId,

                const CPbk2ViewState* aViewState ) const;

        void ActivatePreviousViewL(

                const CPbk2ViewState* aViewState );

        MPbk2ViewActivationTransaction* HandleViewActivationLC(

                const TUid& aViewId,

                const TVwsViewId& aPrevViewId,

                const TDesC* aTitlePaneText,

                const CEikImage* aContextPanePicture,

                TUint aFlags );

        CPbk2ViewGraph& ViewGraph() const;

    private: // Implementation

        CPbk2ViewExplorer(

                CPbk2AppUi& aAppUi );

        void ConstructL();

        void ReadViewGraphL();

    private: // Data

        /// Ref: Phonebook 2 application UI

        CPbk2AppUi& iAppUi;

        /// Own: View navigation graph

        CPbk2ViewGraph* iViewGraph;

    };

#endif // CPBK2VIEWEXPLORER_H

// End of File