/*

 * Copyright (c) 2004-2007 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:  An interface for contact view base extension.

 *

 */

 #ifndef MVPBKCONTACTVIEWBASECHILDACCESSEXT_H

 #define MVPBKCONTACTVIEWBASECHILDACCESSEXT_H

 // INCLUDES

 #include <e32cmn.h>

 #include <vpbkcontactview.hrh>

 #include <bamdesca.h>

 // FORWARD DECLARATIONS

 // CLASS DECLARATIONS

 /// This is the UID that identifies this interface.

 const TUint KVPbkViewBaseExtChildAccess = 123; // TODO Allocate UID.

 /**

  * This is an extension to MVPbkContactViewBase for accessing child views

  * of a composite.

  */

 class MVPbkContactViewBaseChildAccessExtension

     {

     public: // types

     public:  // Destructor

         /**

          * Destructor.

          */

         virtual ~MVPbkContactViewBaseChildAccessExtension() { }

     public:  // New functions

         /**

          * Tells the number of child views.

          */

         virtual TInt ChildViewCount() const = 0;

         /**

          * Gives reference to a specific child view.

          * @param aIndex Index of child view.

          */

         virtual MVPbkContactViewBase& ChildViewAt(TInt aIndex) = 0;

         /**

          * Gives pointer to a specific child view.

          * @param aId Id of child view.

          */

         virtual MVPbkContactViewBase* GetChildViewById(TInt aId) = 0;

         /**

          * Gives a current view id.

          */

         virtual TInt GetViewId() = 0;

         /**

          * Returns an extension point for this interface or NULL.

          *

          * @param aExtensionUid no extensions defined currently.

          * @return an extension point for this interface or NULL.

          */

         virtual TAny* MVPbkContactViewBaseChildAccessExtensionExtension(TUid /*aExtensionUid*/) 

                 { return NULL; }

     };

 #endif // MVPBKCONTACTVIEWBASECHILDACCESSEXT_H

 // End of File