1 /*

     2 * Copyright (c) 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:  Wrapper for Back Stepping Service

    15 *

    16 */

    17 

    18 

    19 #ifndef CIRBACKSTEPPINGSERVICEWRAPPER_H

    20 #define CIRBACKSTEPPINGSERVICEWRAPPER_H

    21 

    22 #include <e32base.h>

    23 #include <vwsdef.h>

    24 

    25 class MLiwInterface;

    26 class CLiwGenericParamList;

    27 class CLiwServiceHandler;

    28 

    29 /**

    30  *  Back Stepping (BS) Service wrapper for Internet Radio.

    31  */

    32 class CIRBackSteppingServiceWrapper : public CBase

    33     {

    34 

    35 public:

    36 

    37     /**

    38      * Static constructor.

    39      *

    40      * @param aUid Application UID.

    41      */

    42     static CIRBackSteppingServiceWrapper* NewL( TUid aUid );

    43 

    44     /**

    45      * Destructor.

    46      */

    47      ~CIRBackSteppingServiceWrapper();

    48 

    49     /**

    50      * Forwards view activation event to BS Service.

    51      *

    52      * @param   aViewId View id of the view where back is called.

    53      * @param   aEnter Indicates if it is entry or exit activation.

    54      */

    55     void HandleViewActivationEventL( const TVwsViewId aViewId, TBool aEnter );

    56 

    57     /**

    58      * Forwards back command to BS Service.

    59      *

    60      * @param   aViewId View id of the view where back is called.

    61      * @return  Returns Etrue if BS Service consumed the command, otherwise returns EFalse.

    62      */

    63     TBool HandleBackCommandL( const TVwsViewId aViewId );

    64 

    65 private:

    66 

    67     /**

    68      * C++ default constructor.

    69      */

    70     CIRBackSteppingServiceWrapper();

    71 

    72     /**

    73      * 2nd phase constructor

    74      *

    75      * @param aUid Application UID.

    76      */

    77     void ConstructL( TUid aUid );

    78 

    79     /**

    80      * Initializes BS Service.

    81      *

    82      * @param aUid Application UID.

    83      */

    84     void InitializeL( TUid aUid );

    85 

    86     /**

    87      * Handles the result of a LIW command

    88      *

    89      * @return Returns ETrue if LIW command executed, otherwise returns EFalse.

    90      */

    91     TBool HandleResultL();

    92 

    93 private: // data

    94 

    95     /**

    96      * AIW Service Handler.

    97      * Own.

    98      */

    99     CLiwServiceHandler* iServiceHandler;

   100 

   101     /**

   102      * BS Service interface returned by LIW.

   103      * Own.

   104      */

   105     MLiwInterface* iBsInterface;

   106 

   107     /**

   108      * In param list.

   109      * Not own.

   110      */

   111     CLiwGenericParamList* iInParamList;

   112 

   113     /**

   114      * Out param list.

   115      * Not own.

   116      */

   117     CLiwGenericParamList* iOutParamList;

   118     };

   119 

   120 #endif // CIRBACKSTEPPINGSERVICEWRAPPER_H