/*

 * 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 the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

 * which accompanies this distribution, and is available

 * at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: 

 *      Phonebook asyncronous thumbnail operation observer interfaces.

 *

 */

 #ifndef __MPbkThumbnailOperationObservers_H__

 #define __MPbkThumbnailOperationObservers_H__

 //  INCLUDES

 #include <e32def.h>

 //  FORWARD DECLARATIONS

 class MPbkThumbnailOperation;

 class CFbsBitmap;

 class CPbkImageDataWithInfo;

 // CLASS DECLARATION

 /**

  * Observer interface for CPbkThumbnailManager get operation.

  * Only one of the event callbacks is called once by the operation.

  *

  * @see CPbkThumbnailManager::GetThumbnailAsyncL

  */

 class MPbkThumbnailGetObserver

     {

     public:

         /**

          * Called when thumbnail loading is completed.

          *

          * @param aOperation    The completed operation.

          * @param aBitmap       The loaded bitmap. Callee is responsible of 

          *                      the bitmap.

          */

         virtual void PbkThumbnailGetComplete

             (MPbkThumbnailOperation& aOperation, CFbsBitmap* aBitmap) =0;

         /**

          * Called if the thumbnail loading fails.

          *

          * @param aOperation    The failed operation.

          * @param aError        Error code of the failure.

          */

         virtual void PbkThumbnailGetFailed

             (MPbkThumbnailOperation& aOperation, TInt aError) =0;

     };

 /**

  * Observer interface for CPbkThumbnailManager get image operation.

  * Only one of the event callbacks is called once by the operation.

  *

  * @see CPbkThumbnailManager::GetThumbnailImageAsyncL

  */

 class MPbkThumbnailGetImageObserver

     {

     public:

         /**

          * Called when thumbnail loading is completed.

          *

          * @param aOperation    The completed operation.

          * @param aImageData    The thumbnail image. Caller is responsible

          *                      of the object.

          */

         virtual void PbkThumbnailGetImageComplete

             (MPbkThumbnailOperation& aOperation, CPbkImageDataWithInfo* aImageData) =0;

         /**

          * Called if the thumbnail loading fails.

          *

          * @param aOperation    The failed operation.

          * @param aError        Error code of the failure.

          */

         virtual void PbkThumbnailGetImageFailed

             (MPbkThumbnailOperation& aOperation, TInt aError) =0;

     };

 /**

  * Observer interface for CPbkThumbnailManager set operations.

  * Only one of the event callbacks is called once by the operation.

  *

  * @see CPbkThumbnailManager::SetThumbnailAsyncL

  */

 class MPbkThumbnailSetObserver

     {

     public:

         /**

          * Called when thumbnail setting is completed.

          *

          * @param aOperation    The completed operation.

          */

         virtual void PbkThumbnailSetComplete

             (MPbkThumbnailOperation& aOperation) =0;

         /**

          * Called if the thumbnail setting fails.

          *

          * @param aOperation    The failed operation.

          * @param aError        Error code of the failure.

          */

         virtual void PbkThumbnailSetFailed

             (MPbkThumbnailOperation& aOperation, TInt aError) =0;

     };

 #endif // __MPbkThumbnailOperationObservers_H__

 // End of File