1 /*

     2 * Copyright (c) 2004-2005 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *     See class description below

    16 *

    17 */

    18 

    19 

    20 #ifndef __LANDMARKS_OPERATION_OBSERVER_H__

    21 #define __LANDMARKS_OPERATION_OBSERVER_H__

    22 

    23 // INCLUDES

    24 #include <e32base.h>

    25 

    26 // CONSTANTS

    27 const TInt KOperationReady = 100;

    28 const TInt KOperationNotReady = 0;

    29 

    30 // DATA TYPES

    31 /**

    32 * TOperation indicates which operation type has been processed

    33 */

    34 enum TOperation

    35     {

    36     ENoOperation,

    37     EInitializeDb,

    38     ELandmarkSearch,

    39     ECategorySearch,

    40     ELandmarkRead,

    41     ECategoryRead,

    42     EAcquiringLocation

    43     };

    44 

    45 // CLASS DECLARATION

    46 

    47 /**

    48 *  An observer interface used for notifying the execution progress of 

    49 *  asynchronous opearations. 

    50 *  Typically used by objects deriving from other classes than CActive.

    51 */

    52 class MLandmarksOperationObserver

    53     {

    54     public: // New functions

    55 

    56         /**

    57         * NotifyOperationProgressL notifies the progress and status of an

    58         * asynchronous operation.

    59         *  

    60         * @param aOperation the type of operation that is reported.

    61         * @param aProgress the progress of the operation.

    62         * @param aErrorCode the status of the operation.

    63         */

    64         virtual void NotifyOperationProgressL(

    65             TOperation aOperation, 

    66             TInt aProgress, 

    67             TInt aErrorCode) = 0;

    68 

    69     };

    70 

    71 #endif // __LANDMARKS_OPERATION_OBSERVER_H__

    72 

    73 // End of File