1 /*

     2 * Copyright (c) 2005-2007 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:  Plug-in main class

    15 *

    16 */

    17 

    18 

    19 #ifndef WRTDATAOBSERVER_H

    20 #define WRTDATAOBSERVER_H

    21 

    22 // System includes

    23 #include <liwcommon.h>

    24 

    25 // User includes

    26 

    27 // Forward declarations

    28 class CWrtData;

    29 

    30 /**

    31  * @ingroup group_wrtdataplugin

    32  *

    33  * Wrt data observer

    34  *

    35  * @since S60 5.2

    36  */

    37 NONSHARABLE_CLASS( CWrtDataObserver ) : public CBase, 

    38     public MLiwNotifyCallback

    39     {

    40 public:

    41     // constructor and destructor

    42 

    43     /**

    44     * Part of the two phased constuction

    45     *

    46     * @param aInterface reference of the interface 

    47     * @param aData reference of the wrt data object

    48     * @return none

    49     */

    50     static CWrtDataObserver* NewL( MLiwInterface* aInterface, CWrtData* aData );

    51     

    52     /**

    53     * Destructor

    54     *

    55     * @param none

    56     * @return none

    57     */   

    58     ~CWrtDataObserver();

    59 

    60 private:

    61     // constructors

    62     

    63     /**

    64     * Constructor

    65     *

    66     * @param none

    67     * @return none

    68     */

    69     CWrtDataObserver();

    70     

    71     /**

    72     * Part of the two phased construction

    73     *

    74     * @param aInterface reference of the interface

    75     * @param aData reference of the wrt data object

    76     * @return void

    77     */

    78     void ConstructL( MLiwInterface* aInterface, CWrtData* aData );

    79        

    80 public:  

    81     //from MLiwNotifyCallbackc

    82     

    83     /**

    84     * Handles notifications caused by an asynchronous Execute*CmdL call

    85     * or an event.

    86     *

    87     * @param aCmdId The service command associated to the event.

    88     * @param aEventId occurred event, see LiwCommon.hrh.

    89     * @param aEventParamList Event parameters, if any, as defined per

    90     *        each event.

    91     * @param aInParamList Input parameters, if any, given in the

    92     *        related HandleCommmandL.

    93     * @return Error code for the call back.

    94     */

    95     virtual TInt HandleNotifyL(

    96         TInt aCmdId,

    97         TInt /*aEventId*/,

    98         CLiwGenericParamList& aEventParamList,

    99         const CLiwGenericParamList& /*aInParamList*/);

   100 

   101 public:

   102     // new functions

   103     

   104     /**

   105     * Registers to CPS for add, delete , update and execute notifications

   106     * @aFilter - filter for input parameter list

   107     * @return void.

   108     */

   109     void RegisterL( CLiwDefaultMap* aFilter );

   110 

   111     /**

   112     * Cancel all the registered notifications. 

   113     * @return void.

   114     */

   115     void ReleaseL();

   116         

   117 private:

   118     // data 

   119         

   120     /** Interface Reference, not owned */     

   121     MLiwInterface* iInterface;    

   122     // Reference of the wrt data, not owned */    

   123     CWrtData* iData;    

   124     /** Call back error code */

   125     TInt iError;      

   126     /** Transaction id */

   127     TInt32 iTransactionId;

   128     };

   129 

   130 #endif // WRTDATAOBSERVER_H

   131 

   132 // End of file