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:  Listens for changes in a Central Repository key.

    15 *

    16 */

    17 

    18 #ifndef AOCENREPOBSERVER_H

    19 #define AOCENREPOBSERVER_H

    20 

    21 // FORWARD DECLARATIONS

    22 class CRepository;

    23 class MAOConnectionObserver;

    24 

    25 // Stop requesting new notifications after this many consecutive errors

    26 const TInt KCenRepErrorRetryCount = 80;

    27 

    28 /**

    29 * MAOCenRepObserver

    30 *

    31 * Client application must implement the AOCenRepObserver interface in

    32 * order to receive a notification when Central Repository key 

    33 * KCRUidCmManager/ KCurrentCellularDataUsage changes.

    34 *

    35 * @lib PDPCONTEXTMANAGER2.LIB

    36 */

    37 class MAOCenRepObserver

    38     {

    39 public:

    40     /**

    41     * This method is called every time when Central Repository key 

    42     * KCRUidCmManager/ KCurrentCellularDataUsage changes.

    43     *

    44     * @param aValue The new value for KCurrentCellularDataUsage.

    45     */

    46     virtual void CurrentCellularDataUsageChangedL( const TInt aValue ) = 0;

    47     };

    48 

    49 /**

    50 * CAOCenRepObserver

    51 *

    52 * @lib DPCONTEXTMANAGER2.LIB

    53 */

    54 NONSHARABLE_CLASS( CAOCenRepObserver ) : public CActive

    55     {

    56 public:

    57     static CAOCenRepObserver* NewL( MAOCenRepObserver& aObserver );

    58 

    59     static CAOCenRepObserver* NewLC( MAOCenRepObserver& aObserver );

    60 

    61     virtual ~CAOCenRepObserver();

    62 

    63 private:

    64     CAOCenRepObserver( MAOCenRepObserver& aObserver );

    65 

    66     void ConstructL();

    67     void RequestNotifications();

    68  

    69 private: // Methods from base class

    70     void DoCancel();

    71     void RunL();

    72 

    73 private:

    74     MAOCenRepObserver& iObserver;

    75     CRepository*       iRepository;

    76     TInt               iErrorCounter;

    77     };

    78 

    79 #endif // AOCENREPOBSERVER_H

    80 

    81 // End-of-file