1 /*

     2 * Copyright (c) 2009 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:  Handles messaging between file system and haptics 

    15 *                client interface.

    16 *

    17 */

    18 

    19 

    20 #ifndef C_HAPTICSMSGHANDLER_H

    21 #define C_HAPTICSMSGHANDLER_H

    22 

    23 #include <e32base.h>

    24 #include <e32debug.h>

    25 #include <f32file.h>

    26 

    27 #include "hapticsbridgeclient.h"

    28 

    29 class CHapticsConnTimer;

    30 

    31 /**

    32  * Interface to notify about connection timeout.

    33  */

    34 class MHapticsConnectionShutdown

    35     {

    36     public:

    37         /**

    38          * Called to notify about connection timeout.

    39          */

    40         virtual void NotifyShutdown() = 0;

    41     

    42     };

    43 

    44 /**

    45  * Helper class for Bridge functionality for handling RFs (File Session)

    46  * change notifications for VibeTonz request file.

    47  *

    48  * @since S60 5.1

    49  */

    50 class CHapticsMsgHandler : public CActive,

    51                            public MHapticsConnectionShutdown

    52     {        

    53 public:    

    54     /**

    55      * 2-phased constructor.

    56      */

    57     static CHapticsMsgHandler* NewL();

    58     

    59     /**

    60      * Destructor

    61      */

    62     virtual ~CHapticsMsgHandler();

    63 

    64     /**

    65      * Method for starting the listening for change notifications    

    66      */

    67     void StartNotifier();

    68         

    69     /**

    70      * From MHapticsConnectionShutdown.

    71      * Called to notify about connection timeout.

    72      */        

    73     void NotifyShutdown();   

    74     

    75 protected: // From CActive.    

    76     /**

    77      * @see CActive

    78      */

    79     void RunL();

    80     /**

    81      * @see CActive

    82      */    

    83     TInt RunError(TInt aError);

    84     /**

    85      * @see CActive

    86      */    

    87     void DoCancel();

    88         

    89 private:

    90 

    91     /**

    92      * Constructor

    93      */

    94     CHapticsMsgHandler();

    95 

    96     /**

    97      * Two-phase construction ConstructL

    98      */

    99     void ConstructL();

   100     

   101     /**

   102      * Method for connecting to file system. Also sets the paths and

   103      * creates directories (if not already exists).

   104      */

   105     void ConnectToFilesystemL();            	

   106  

   107     /**

   108      * Helper for clearing the possible left-over request file from

   109      * previous runs.

   110      */

   111     void ClearRequestFile();

   112 

   113 private: // data

   114     

   115     /**

   116      * File server session through which all file server related 

   117      * services are requested.

   118      */

   119     RFs iFs;

   120     

   121     /**

   122      * Buffer for the request file data

   123      */

   124     HBufC8* iReqBuf;    

   125 

   126     /**

   127      * The RHapticsBridgeClient object that is responsible for further

   128      * handling of received Bridge commands

   129      */

   130     RHapticsBridgeClient iClient;

   131     

   132     CHapticsConnTimer* iConnectionTimeout;

   133         

   134   };

   135 

   136 #endif // C_HAPTICSMSGHANDLER_H