/*

* 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 loader

*

*/

#ifndef CPBK2VIEWLOADER_H

#define CPBK2VIEWLOADER_H

//  INCLUDES

#include <e32base.h>

#include <MVPbkContactViewObserver.h>

// FORWARD DECLARATIONS

class MPbk2ViewLoaderObserver;

class MVPbkContactViewBase;

// CLASS DECLARATION

/**

 * Phonebook 2 view loader

 * Responsible for:

 *  - Load given view and inform when it is ready to use.

 */

NONSHARABLE_CLASS( CPbk2ViewLoader ): public CBase,

                                      public MVPbkContactViewObserver

    {    

    public: // Constructors and destructor

        /**

         * Creates a new instance of this class.

         *

         * @param aObserver view loader's observer

         * @return  A new instance of this class.

         */

        static CPbk2ViewLoader* NewL(

                MVPbkContactViewBase& aView,

                MPbk2ViewLoaderObserver& aObserver );

        /**

         * Destructor.

         */

        ~CPbk2ViewLoader();

    private: // From MVPbkContactViewObserver

        /**

         * If subclass overwrites this it must first call the

         * base class version.

         */

        void ContactViewReady(

                MVPbkContactViewBase& aView );

        /**

         * If subclass overwrites this it must first call the

         * base class version.

         */

        void ContactViewUnavailable(

                MVPbkContactViewBase& aView );

        /**

         * If subclass overwrites this it must first call the

         * base class version.

         */

        void ContactAddedToView(

                MVPbkContactViewBase& aView,

                TInt aIndex,

                const MVPbkContactLink& aContactLink );

        /**

         * If subclass overwrites this it must first call the

         * base class version.

         */

        void ContactRemovedFromView(

                MVPbkContactViewBase& aView,

                TInt aIndex,

                const MVPbkContactLink& aContactLink );

        /**

         * If subclass overwrites this it must first call the

         * base class version.

         */

        void ContactViewError(

                MVPbkContactViewBase& aView,

                TInt aError,

                TBool aErrorNotified );        

    private: // Implementation

        CPbk2ViewLoader( 

                MVPbkContactViewBase& aView,

                MPbk2ViewLoaderObserver& aObserver );

        void ConstructL();

    private: // Data       

        /// Ref: Loaded view

        MVPbkContactViewBase& iView;

        /// Ref: Observer view loading

        MPbk2ViewLoaderObserver& iObserver;

    };

#endif // CPBK2VIEWLOADER_H

// End of File