PECengine/TransferAdapter2/Src/CPEngAccessHandler.h
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     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:  Access handler of the network session
       
    15 *
       
    16 */
       
    17 
       
    18 #ifndef __CPENGACCESSHANDLER_H__
       
    19 #define __CPENGACCESSHANDLER_H__
       
    20 
       
    21 //  INCLUDES
       
    22 #include    <E32Base.h>
       
    23 #include    <ImpsAccessCli.h>
       
    24 #include    "PEngPresenceEngineConsts2.h"
       
    25 #include    "PEngWVServices2.h"
       
    26 
       
    27 #include    "MPEngAccessHandler.h"
       
    28 
       
    29 // FORWARD DECLARATIONS
       
    30 class CPEngSessionSlotId;
       
    31 class MPEngSessionStatusObserver;
       
    32 class MPEngSessionManager;
       
    33 
       
    34 /**
       
    35  * NWSessionSlotID implementation.
       
    36  *
       
    37  * @since 3.0
       
    38  */
       
    39 NONSHARABLE_CLASS( CPEngAccessHandler ) :
       
    40         public CBase,
       
    41         public MPEngAccessHandler,
       
    42         public MImpsAccessHandler2,
       
    43         public MImpsErrorHandler2,
       
    44         public MImpsStatusHandler2
       
    45     {
       
    46 public: /* Construction */
       
    47 
       
    48 
       
    49     /**
       
    50      * Instantiates CPEngAccessHandler object.
       
    51      *
       
    52      * @return New CPEngAccessHandler instance.
       
    53      */
       
    54     static CPEngAccessHandler* NewL( RImpsEng& aSessClient,
       
    55     MPEngSessionManager& aSessManager,
       
    56     const CPEngSessionSlotId& aSessionId );
       
    57 
       
    58 
       
    59     /**
       
    60      * Destructor.
       
    61      */
       
    62     ~CPEngAccessHandler();
       
    63 
       
    64     //-----------------------------------------------------------------------
       
    65 public: // from MPEngAccessHandler
       
    66     /**
       
    67      *  Close reference to the Access handler
       
    68      *  @see <MPEngAccessHandler.h>
       
    69      */
       
    70     void Close();
       
    71 
       
    72     /**
       
    73      *  Open new reference to the object
       
    74      *  @see <MPEngAccessHandler.h>
       
    75      */
       
    76     void Open();
       
    77 
       
    78     /**
       
    79      *  Log in to the presence server
       
    80      *  @see <MPEngAccessHandler.h>
       
    81      */
       
    82     void LogInL( TRequestStatus& aStatus, HBufC8* aLoginBuffer );
       
    83 
       
    84     /**
       
    85      *  Log out from the presence server
       
    86      *  @see <MPEngAccessHandler.h>
       
    87      */
       
    88     void LogOutL( TRequestStatus& aStatus );
       
    89 
       
    90     /**
       
    91      *  Returns data which was used for log in.
       
    92      *  @see <MPEngAccessHandler.h>
       
    93      */
       
    94     const TDesC8& LogInData( ) const;
       
    95 
       
    96     /**
       
    97      *  Cancels active asynchronous operation
       
    98      *  @see <MPEngAccessHandler.h>
       
    99      */
       
   100     void Cancel();
       
   101 
       
   102     /**
       
   103      *  Register session status observer
       
   104      *  @see <MPEngAccessHandler.h>
       
   105      */
       
   106     void RegisterSessionObserverL(
       
   107         MPEngSessionStatusObserver& aObserver );
       
   108 
       
   109     /**
       
   110      *  UnRegister session status observer
       
   111      *  @see <MPEngAccessHandler.h>
       
   112      */
       
   113     void UnregisterSessionObserver(
       
   114         MPEngSessionStatusObserver& aObserver );
       
   115 
       
   116     /**
       
   117      *  Get session service capabilities
       
   118      *  @see <MPEngAccessHandler.h>
       
   119      */
       
   120     TPEngWVCspServicesTree2& ServiceCapabilities();
       
   121 
       
   122     /**
       
   123      *  Assert log in data of opened session with the passed data
       
   124      *  @see <MPEngAccessHandler.h>
       
   125      */
       
   126     void AssertLoginDataL( TDesC8& aLogInData );
       
   127 
       
   128 
       
   129 public: // MImpsAccessHandler
       
   130 
       
   131     /**
       
   132      * Observer method for Login and Open event.
       
   133      * @see <impspurecli.h>
       
   134      */
       
   135     void HandleLoginL( TInt aId,
       
   136                        TImpsCspIdentifier& aCspId );
       
   137 
       
   138     /**
       
   139      * Observer method for Logout event.
       
   140      * @see <impspurecli.h>
       
   141      */
       
   142     void HandleLogoutL( TInt aId,
       
   143                         TImpsCspIdentifier& aCspId );
       
   144 
       
   145     /**
       
   146      * Observer method for CancelLogin event.
       
   147      * @see <impspurecli.h>
       
   148      */
       
   149     void HandleLoginCancelL( TInt aCancelledOpId,
       
   150                              TImpsCspIdentifier& aCspId );
       
   151 
       
   152     /**
       
   153      * Observer for NumberOfSessions and NumberOfSubSessions response
       
   154      * @see <impspurecli.h>
       
   155      */
       
   156     void HandleNbrSessionsL( TInt aId,
       
   157                              TInt aNbr,
       
   158                              TImpsCspIdentifier& aCspId );
       
   159 
       
   160 public: // MImpsErrorHandler
       
   161 
       
   162     /**
       
   163      * Observer method for error messages.
       
   164      * @see <impspurecli.h>
       
   165      */
       
   166     void HandleErrorL( TInt aStatus,
       
   167                        TInt aOpId,
       
   168                        const TDesC* aDescription,
       
   169                        const CImpsDetailed* aDetailedRes,
       
   170                        TImpsCspIdentifier& aCspId );
       
   171 
       
   172 public: // MImpsStatusHandler
       
   173     /**
       
   174      * Observer method for changes in service status.
       
   175      * @see <MImpsStatusHandler.h>
       
   176      */
       
   177     void HandleStatusChangeL( TImpsServiceStatus aStatus,
       
   178                               TImpsCspIdentifier& aCspId );
       
   179 
       
   180 private: // new private functions
       
   181 
       
   182     /**
       
   183      *  Copy service tree
       
   184      *
       
   185      *  @since 3.0
       
   186      *  @param WV Engine service tree
       
   187      */
       
   188     void CopyServiceTree( TImpsServices& aFrom );
       
   189 
       
   190     /**
       
   191      *  Notify if new state
       
   192      *
       
   193      *  @since 3.0
       
   194      *  @param aNewState
       
   195      *  @param aEvent
       
   196      */
       
   197     void NotifyIfNewStateL( TPEngNWSessionSlotState aNewState,
       
   198                             TPEngNWSessionSlotEvent aEvent );
       
   199 
       
   200 
       
   201     /**
       
   202      *  Handle completion of the log in request
       
   203      *
       
   204      *  @since 3.0
       
   205      */
       
   206     void HandleLogInCompletionL( );
       
   207 
       
   208 
       
   209 
       
   210 protected: // construction
       
   211 
       
   212     /**
       
   213      * C++ constructor. protected
       
   214      */
       
   215     CPEngAccessHandler( MPEngSessionManager& aSessManager,
       
   216                         const CPEngSessionSlotId& aSessionId );
       
   217 
       
   218     /**
       
   219      * Symbian Second phase constructor
       
   220      */
       
   221     void ConstructL( RImpsEng& aSessClient );
       
   222 
       
   223 private: //Data
       
   224     enum TPEngOperation
       
   225         {
       
   226         EIdle           = 0,
       
   227         EDoingLogIn     = 1,
       
   228         EDoingLogOut    = 2,
       
   229         ECanceling      = 3
       
   230         };
       
   231 
       
   232     /// OWN: Access count
       
   233     TInt                        iCount;
       
   234 
       
   235     /// REF: Session manager
       
   236     MPEngSessionManager&        iSessionManager;
       
   237 
       
   238     /// REF: Session Slot Id
       
   239     const CPEngSessionSlotId&   iSessionId;
       
   240 
       
   241     /// OWN: State of the session
       
   242     TPEngNWSessionSlotState     iSessStatus;
       
   243 
       
   244     /// OWN: Buffer with log in Data
       
   245     HBufC8*                     iLogInData;
       
   246 
       
   247     /// OWN: Service tree of the session
       
   248     TPEngWVCspServicesTree2     iServices;
       
   249 
       
   250     /// OWN: TBool service tree fetched
       
   251     TBool                       iServiceFetched;
       
   252 
       
   253     /// REF: Session state observer
       
   254     RPointerArray<MPEngSessionStatusObserver> iObservers;
       
   255 
       
   256     /// OWN: Access client of WV Engine
       
   257     RImpsAccessClient2          iAccessClient;
       
   258 
       
   259     /// OWN: Operation Id from the WV Server
       
   260     TInt                        iOpId;
       
   261 
       
   262     /// REF: Request Status of the active request
       
   263     TRequestStatus*             iStatus;
       
   264 
       
   265     /// OWN: Active operation
       
   266     TPEngOperation              iOperation;
       
   267 
       
   268     };
       
   269 
       
   270 #endif  //__CPENGACCESSHANDLER_H__
       
   271 
       
   272 // End of File