1 /*

     2 * Copyright (c) 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 the License "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:  A class that fetches resources via RFile.

    15 *

    16 */

    17 

    18 

    19 #ifndef FILE_HANDLER_H

    20 #define FILE_HANDLER_H

    21 

    22 

    23 // INCLUDES

    24 #include <e32base.h>

    25 

    26 #include "LeakTracker.h"

    27 #include "UrlHandler.h"

    28 

    29 // CONSTANTS

    30 

    31 // MACROS

    32 

    33 // DATA TYPES

    34 

    35 // FUNCTION PROTOTYPES

    36 

    37 // FORWARD DECLARATIONS

    38 class CIdle;

    39 

    40 // CLASS DECLARATION

    41 

    42 

    43 /**

    44 *  A class that fetches resources via RFile.

    45 *

    46 *  \b Library: FeedsEngine.lib

    47 *

    48 *  @since 3.0

    49 */

    50 class CFileHandler: public CUrlHandler

    51     {

    52     public:  // Constructors and destructor

    53         /**

    54         * Two-phased constructor.

    55         */

    56         static CFileHandler* NewL();

    57         

    58         /**

    59         * Destructor.

    60         */        

    61         virtual ~CFileHandler();

    62     

    63 

    64     public:  // From MUrlHandler

    65         /**

    66         * Loads the given url -- asynchronously

    67         *

    68         * @since 3.0

    69         * @param aUrl The url to load

    70         * @param aObserver The load observer.

    71         * @return void.

    72         */

    73         virtual void LoadUrlL(const TDesC& aUrl, MLoadObserver& aObserver);

    74 

    75 

    76     private:

    77         /**

    78         * C++ default constructor.

    79         */

    80         CFileHandler();

    81         

    82         /**

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

    84         */

    85         void ConstructL();

    86                 

    87         /**

    88         * Loads and passes the buffer to the observer.

    89         *

    90         * @since 3.0

    91         * @param aPtr The this pointer.

    92         * @return Always returns EFalse.

    93         */

    94         static TInt LoadCompleted(TAny* aPtr);

    95 

    96         /**

    97         * Loads and passes the buffer to the observer.

    98         *

    99         * @since 3.0

   100         * @return The buffer.

   101         */

   102         HBufC8* LoadCompletedHelperL();

   103 

   104 

   105     private:

   106         TLeakTracker    iLeakTracker;

   107         

   108         HBufC16*        iUrl;

   109         MLoadObserver*  iObserver;

   110         CIdle*          iIdle;

   111     };

   112 

   113 #endif      // FILE_HANDLER_H

   114             

   115 // End of File