1 /*

     2 * Copyright (c) 2002-2006 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:  Asynchronous refresher for CGflmNavigatorModel

    15 *

    16 */

    17 

    18 

    19 #ifndef CFILEMANAGERREFRESHER_H

    20 #define CFILEMANAGERREFRESHER_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include "GFLM.hrh"

    25 

    26 // FORWARD DECLARATIONS

    27 class CGflmNavigatorModel;

    28 class MFileManagerProcessObserver;

    29 

    30 // CLASS DECLARATION

    31 

    32 /**

    33 *  This class start asynchronous refreshing of given CGflmNavigatorModel.

    34 *

    35 *  @lib FileManagerEngine.lib

    36 *  @since 2.0

    37 */

    38 NONSHARABLE_CLASS(CFileManagerRefresher) : public CActive

    39     {

    40     public:  // Constructors and destructor

    41 

    42         /**

    43         * Two-phased constructor.

    44         */

    45         static CFileManagerRefresher* NewL( CGflmNavigatorModel& aModel );

    46 

    47         /**

    48         * Destructor.

    49         */

    50         virtual ~CFileManagerRefresher();

    51 

    52     public: // New functions

    53 

    54         /**

    55         * Refreshes the model.

    56         * @since 2.0

    57         * @param aRefreshMode Given refresh mode.

    58         */

    59         void Refresh( TGflmRefreshMode aRefreshMode = ERefreshItems );

    60 

    61         /**

    62         * Sets observer

    63         * @since 2.0

    64         * @param aObserver Observer for the operation or NULL,

    65         *                  ownership is not transferred.

    66         */

    67         void SetObserver( MFileManagerProcessObserver* aObserver );

    68 

    69         /**

    70         * Cancels refresh.

    71         * @since 2.0

    72         */

    73         TBool CancelRefresh();

    74 

    75     protected:  // From CActive

    76 

    77         void RunL();

    78 

    79         TInt RunError( TInt aError );

    80 

    81         void DoCancel();

    82 

    83     private:

    84 

    85         /**

    86         * By default Symbian 2nd phase constructor is private.

    87         */

    88         void ConstructL();

    89 

    90         /**

    91         * C++ default constructor.

    92         */

    93         CFileManagerRefresher( CGflmNavigatorModel& aModel );

    94 

    95     private:    // Data

    96 

    97         // Ref: Reference to the model instance that will be refreshed

    98         CGflmNavigatorModel& iModel;

    99 

   100         // Ref: Pointer to the observer that will be notified

   101         MFileManagerProcessObserver* iObserver;

   102 

   103     };

   104 

   105 #endif // CFILEMANAGERREFRESHER_H

   106 

   107 // End of File