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 // INCLUDE FILES

    23 #include <LiwCommon.h>

    24 

    25 class CWrtData;

    26 

    27 /**

    28  *  @ingroup group_wrtdataplugin

    29  *

    30  *  Wrt data observer

    31  *

    32  *  @since S60 v3.2

    33  */

    34 class CWrtDataObserver : public CBase, public MLiwNotifyCallback

    35     {

    36 public:

    37 

    38     /**

    39     * Part of the two phased constuction

    40     *

    41     * @param aInterface reference of the interface 

    42     * @param aData reference of the wrt data object

    43     * @return none

    44     */

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

    46     

    47     /**

    48     * Destructor

    49     *

    50     * @param none

    51     * @return none

    52     */   

    53     ~CWrtDataObserver();

    54 

    55 private :

    56     

    57     /**

    58     * Constructor

    59     *

    60     * @param none

    61     * @return none

    62     */

    63     CWrtDataObserver();

    64     

    65     /**

    66     * Part of the two phased construction

    67     *

    68     * @param aInterface reference of the interface

    69     * @param aData reference of the wrt data object

    70     * @return void

    71     */

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

    73        

    74 public:  //from MLiwNotifyCallbackc

    75     

    76     /**

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

    78     * or an event.

    79     *

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

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

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

    83     *        each event.

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

    85     *        related HandleCommmandL.

    86     * @return Error code for the call back.

    87     */

    88     virtual TInt HandleNotifyL(

    89         TInt aCmdId,

    90         TInt /*aEventId*/,

    91         CLiwGenericParamList& aEventParamList,

    92         const CLiwGenericParamList& /*aInParamList*/);

    93 

    94 public:

    95     

    96     /**

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

    98     * @aFilter - filter for input parameter list

    99     * @return void.

   100     */

   101     void RegisterL( CLiwDefaultMap* aFilter );

   102 

   103     /**

   104     * Cancel all the registered notifications. 

   105     * @return void.

   106     */

   107     void ReleaseL();

   108         

   109 private:

   110         

   111     // Reference of 

   112     // Not owned

   113     MLiwInterface* iInterface;

   114     

   115     // Reference of the wrt data

   116     // Not owned

   117     CWrtData* iData;

   118     

   119     // Call back error code

   120     TInt iError;

   121         

   122     };

   123 

   124 #endif /*WRTDATAOBSERVER_H*/