1 /*

     2 * Copyright (c) 2008 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 the License "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: 

    15 *

    16 */

    17 

    18 

    19 #ifndef WLANOBSERVER_H

    20 #define WLANOBSERVER_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <e32property.h>

    25 

    26 // FORWARD DECLARATIONS

    27 class MApiProvider;

    28 

    29 

    30 // CONSTANTS

    31 

    32 // State enum and member variable

    33 

    34 // CLASS DECLARATIONS

    35 /**

    36 *  CWlanObserver.

    37 *  Observer class for handling wlan status requests

    38 *  @since S60 v5.0

    39 */

    40 class CWlanObserver : public CActive

    41     {

    42     public:    // Constructors and destructor

    43 

    44         /**

    45         * Constructor.

    46         * @param aApiProvider Reference to API provider

    47         */

    48         CWlanObserver(MApiProvider& aApiProvider);

    49         

    50         /**

    51          * Destructor.

    52          */

    53         virtual ~CWlanObserver();

    54         

    55         /**

    56         * Retrieves current state of wireless lan connection

    57         * @param aWlanStateValue reference to current Wlan state value which is updated here

    58         * @return: EFalse if error condition (ignore aWlanStateValue in this case)

    59         *          Etrue if no error (get updated value from aWlanStateValue)

    60         */

    61         TBool GetCurrentState(TInt &aWlanStateValue);        

    62         

    63     protected:    // CActive

    64 

    65         /**

    66         * Implements cancellation of an outstanding request.

    67         * @param none

    68         * @return void

    69         */

    70         void DoCancel();

    71        

    72         /**

    73         * Handles an active object’s request completion event.

    74         * @param none

    75         * @return void

    76         */

    77         void RunL();

    78  

    79         /**

    80         * Handles an active object’s error

    81         * @param error

    82         * @return void

    83         */

    84         TInt RunError(TInt aError);

    85 

    86     private:    // new methods

    87 

    88         MApiProvider& iApiProvider;         // Api provider

    89         

    90         RProperty iWlanProperty;

    91         

    92           

    93     };

    94 

    95 #endif      // WLANOBSERVER_H

    96 

    97 // End of File