1 /*

     2 * Copyright (c) 2004 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:  Resolves the network registration state and listens to the

    15 *				 registration state changes

    16 *

    17 */

    18 

    19 

    20 

    21 #ifndef __CPENGAONWSTATUSOBSERVER_H

    22 #define __CPENGAONWSTATUSOBSERVER_H

    23 

    24 //  INCLUDES

    25 #include "MIMPSSystemNotifierObserver.h"

    26 

    27 #include <e32base.h>

    28 

    29 // FORWARD DECLARATIONS

    30 class MPEngAONwStatusObserver;

    31 class MIMPSSystemNotifier;

    32 

    33 // CLASS DECLARATION

    34 

    35 /**

    36 *  Network observer class for getting the current network status and getting

    37 *  the events of network registration change.

    38 *  @lib PEngAOPlugin.lib

    39 *  @since 2.6

    40 */

    41 class CPEngAONwStatusObserver : public CBase,

    42             public MIMPSSystemNotifierObserver

    43     {

    44 

    45     public:  // Constructors and destructor

    46 

    47         /**

    48         * Two-phased constructor.

    49         */

    50         static CPEngAONwStatusObserver* NewL( MPEngAONwStatusObserver& aObserver );

    51 

    52         /**

    53         * Destructor.

    54         */

    55         virtual ~CPEngAONwStatusObserver();

    56 

    57     public:		// new methods

    58 

    59         /**

    60          * Checks if network is available. If not then starts observe when

    61          * network status returns.

    62          * @return TBool ETrue if network is available

    63          */

    64         TBool IsNetworkAvailable();

    65 

    66         /**

    67          * Stops observering Network availability changes

    68          */

    69         void StopObserving();

    70 

    71     protected:  // From MIMPSSystemNotifierObserver

    72 

    73         /**

    74         * @see MIMPSSystemNotifierObserver

    75         */

    76         void HandleSystemNotifierEventL( TUid aKey, TInt aValue );

    77 

    78     private:

    79 

    80         /**

    81         * C++ default constructor.

    82         */

    83         CPEngAONwStatusObserver( MPEngAONwStatusObserver& aObserver );

    84 

    85         /**

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

    87         */

    88         void ConstructL();

    89 

    90     private:    // Data

    91         /// system events observer

    92         MIMPSSystemNotifier* iSystemNotifier;

    93 

    94         /// A reference to the observing object

    95         MPEngAONwStatusObserver& iObserver;

    96 

    97         /// Reserved pointer for future extension

    98         TAny* iReserved;

    99 

   100     };

   101 

   102 #endif      // __CPENGAONWSTATUSOBSERVER_H

   103 

   104 // End of File