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 "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:   Definition of a CCH observer API

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef VCCCCHOBSERVER_H

    21 #define VCCCCHOBSERVER_H

    22 

    23 #include <e32base.h>

    24 

    25 /**

    26  *  Observer class for CVccCchMonitor

    27  *

    28  *  The class that defines observer interfaces.

    29  *  Used to get notifications when CCH states changes.

    30  *  @code

    31  *   class CMyClass : public CBase, public MVccCchObserver

    32  *       {

    33  *   public:

    34  *       ...

    35  *       void CchServiceStatusChanged( TServiceStatus aStatus );

    36  *       ...

    37  *       }

    38  *

    39  *   void MyClass::CchServiceStatusChanged( TServiceStatus aStatus )

    40  *       {

    41  *       if ( aStatus == MVccCchObserver::EServiceUnavailable )

    42  *           {

    43  *           ServiceNotWorking();

    44  *           }

    45  *       else

    46  *           {

    47  *           ServiceWorking();

    48  *           }

    49  *       }

    50  *

    51  *  @endcode

    52  *

    53  *  @lib vcchotrigger.lib

    54  *  @since S60 v3.2

    55  */

    56 class MVccCchObserver

    57     {

    58 public:

    59 

    60     /**  Service status */

    61     enum TServiceStatus

    62         {

    63         EServiceUnavailable = 0,

    64         EServiceAvailable

    65         };

    66 

    67     /**

    68      * Observer interface. Called when the CCH status has been changed.

    69      *

    70      * @since S60 v3.2

    71      * @param aStatus Status of the service availability.

    72      */

    73 

    74     virtual void CchServiceStatusChanged( TServiceStatus aStatus ) = 0;

    75 

    76     };

    77 

    78 #endif // VCCCCHOBSERVER_H