ximpfw/presence/srcpresencecache/presencecacheclient/presencecacheclientnotification.cpp
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     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:  Implementation for presence cache client.
       
    15 *
       
    16 */
       
    17 
       
    18 #include <e32std.h>
       
    19 
       
    20 #include <prescachereadhandler.h>
       
    21 
       
    22 #include "presencecacheclientnotification.h"
       
    23 #include "presencecachedefs.h"
       
    24 #include "ximpobjecthelpers.h"
       
    25 #include "presenceinfoimp.h"
       
    26 #include "presencebuddyinfoimp.h"
       
    27 #include "personpresenceinfoimp.h"
       
    28 
       
    29 // ============================ MEMBER FUNCTIONS =============================
       
    30 
       
    31 // ---------------------------------------------------------------------------
       
    32 // CPresenceCacheClientNotification::NewL
       
    33 // ---------------------------------------------------------------------------
       
    34 //
       
    35 CPresenceCacheClientNotification* CPresenceCacheClientNotification::NewL(
       
    36     CPresenceCacheClient& aClient)
       
    37     {
       
    38     CPresenceCacheClientNotification* self = new(ELeave)CPresenceCacheClientNotification(aClient);
       
    39     CleanupStack::PushL( self );
       
    40     self->ConstructL();
       
    41     CleanupStack::Pop();
       
    42     return self;    
       
    43     }
       
    44     
       
    45 // ---------------------------------------------------------------------------
       
    46 // CPresenceCacheClientNotification::~CPresenceCacheClientNotification
       
    47 // ---------------------------------------------------------------------------
       
    48 //
       
    49 CPresenceCacheClientNotification::~CPresenceCacheClientNotification()
       
    50     {
       
    51     Cancel();
       
    52     }
       
    53     
       
    54 // ---------------------------------------------------------------------------
       
    55 // CPresenceCacheClientNotification::CPresenceCacheClientNotification
       
    56 // ---------------------------------------------------------------------------
       
    57 //
       
    58 CPresenceCacheClientNotification::CPresenceCacheClientNotification(CPresenceCacheClient& aClient)
       
    59 : CActive( EPriorityStandard ), iClient( aClient ), iNotificationSubscribed( EFalse )
       
    60     {        
       
    61     }
       
    62 
       
    63 // ---------------------------------------------------------------------------
       
    64 // CPresenceCacheClientNotification::ConstructL
       
    65 // ---------------------------------------------------------------------------
       
    66 //
       
    67 void CPresenceCacheClientNotification::ConstructL()
       
    68     {
       
    69     CActiveScheduler::Add( this );   
       
    70     }
       
    71     
       
    72 // ---------------------------------------------------------------------------
       
    73 // CPresenceCacheClientNotification::RunL
       
    74 // ---------------------------------------------------------------------------
       
    75 //
       
    76 void CPresenceCacheClientNotification::RunL()
       
    77     {    
       
    78     TInt origStatus = iStatus.Int();
       
    79     
       
    80     MPresCacheReadHandler* client = ClientNotifyHandler();    
       
    81     
       
    82     if ( origStatus )
       
    83         {
       
    84         iNotificationSubscribed = EFalse;        
       
    85         TRAP_IGNORE( client->HandlePresenceNotificationL( origStatus, NULL ));
       
    86         }
       
    87     else
       
    88         {
       
    89         StartNotifySubscription();        
       
    90         PreseneceFromServerToClientL( *client, iSizePckg() );
       
    91         }              
       
    92     }
       
    93 // ----------------------------------------------------------
       
    94 // CPresenceCacheClientNotification::RunError
       
    95 // ----------------------------------------------------------
       
    96 //
       
    97 TInt CPresenceCacheClientNotification::RunError( TInt aError )
       
    98     {         
       
    99     if ( KErrServerTerminated == aError )
       
   100         {
       
   101         // When server is terminated we notify the clienrt about that
       
   102         iNotificationSubscribed = EFalse;         
       
   103         MPresCacheReadHandler* client = ClientNotifyHandler();
       
   104         TRAP_IGNORE( client->HandlePresenceNotificationL( aError, NULL ));        
       
   105         }
       
   106     else
       
   107         {
       
   108         // StartNotifySubscription is already called.
       
   109         }
       
   110     return KErrNone;    
       
   111     } 
       
   112 
       
   113 // ---------------------------------------------------------------------------
       
   114 // CPresenceCacheClientNotification::DoCancel
       
   115 // ---------------------------------------------------------------------------
       
   116 //
       
   117 void CPresenceCacheClientNotification::DoCancel()
       
   118     {
       
   119     // TODO: consider when this is safe
       
   120     iClient.SendReceive( NRequest::ECancelWaitingForNotification );
       
   121     }
       
   122 
       
   123 // ---------------------------------------------------------------------------
       
   124 // CPresenceCacheClientNotification::SubscribePresenceBuddyChangeL
       
   125 // ---------------------------------------------------------------------------
       
   126 //    
       
   127 TInt CPresenceCacheClientNotification::SubscribePresenceBuddyChangeL(
       
   128 	const MXIMPIdentity& aIdentity)
       
   129     {       
       
   130     if ( !iNotificationSubscribed )
       
   131         {
       
   132         StartNotifySubscription();
       
   133         }
       
   134     
       
   135     HBufC8* myIdPack = iClient.PackIdentityLC(aIdentity);                
       
   136                       
       
   137     // Package message arguments before sending to the server
       
   138     TIpcArgs args;
       
   139     args.Set(1, myIdPack);  
       
   140         
       
   141     TInt err = iClient.SendReceive( NRequest::ESubscribeBuddyPresenceChange, args ); 
       
   142     CleanupStack::PopAndDestroy( myIdPack );    
       
   143         
       
   144     return err;
       
   145     }
       
   146 
       
   147 // ---------------------------------------------------------------------------
       
   148 // CPresenceCacheClientNotification::UnsubscribePresenceBuddyChangeL
       
   149 // ---------------------------------------------------------------------------
       
   150 //    
       
   151 void CPresenceCacheClientNotification::UnsubscribePresenceBuddyChangeL(
       
   152 	const MXIMPIdentity& aIdentity)
       
   153     {           
       
   154     HBufC8* myIdPack = iClient.PackIdentityLC(aIdentity);                
       
   155                       
       
   156     // Package message arguments before sending to the server
       
   157     TIpcArgs args;
       
   158     args.Set(1, myIdPack);  
       
   159         
       
   160     TInt err = iClient.SendReceive( NRequest::EUnSubscribeBuddyPresenceChange, args );        
       
   161     CleanupStack::PopAndDestroy( myIdPack );
       
   162     User::LeaveIfError( err );
       
   163     }
       
   164  
       
   165 // ---------------------------------------------------------------------------
       
   166 // CPresenceCacheClientNotification::StartNotifySubscriptionL
       
   167 // ---------------------------------------------------------------------------
       
   168 //    
       
   169 void CPresenceCacheClientNotification::StartNotifySubscription()
       
   170     {                                    
       
   171     // Package message arguments before sending to the server
       
   172     SetActive();
       
   173     TIpcArgs args(&iSizePckg);            
       
   174     iClient.SendReceive( NRequest::EWaitingForNotification, args, iStatus );
       
   175     iNotificationSubscribed = ETrue;
       
   176     }
       
   177 
       
   178 // ---------------------------------------------------------------------------
       
   179 // CPresenceCacheClientNotification::ClientNotifyHandler
       
   180 // ---------------------------------------------------------------------------
       
   181 //    
       
   182 MPresCacheReadHandler* CPresenceCacheClientNotification::ClientNotifyHandler()
       
   183     {
       
   184 	return iClient.iNotifyClient;
       
   185     }
       
   186 
       
   187 // ---------------------------------------------------------------------------
       
   188 // CPresenceCacheClientNotification::PreseneceFromServerToClientL
       
   189 // ---------------------------------------------------------------------------
       
   190 //    
       
   191 void CPresenceCacheClientNotification::PreseneceFromServerToClientL( 
       
   192     MPresCacheReadHandler& aClient, TInt aSize )
       
   193     {       
       
   194     CPresenceBuddyInfoImp* buddyInfo(NULL);
       
   195     buddyInfo = CPresenceBuddyInfoImp::NewLC();
       
   196     HBufC8* presInfoDes = HBufC8::NewLC( aSize );
       
   197     TPtr8 ptrBuf( presInfoDes->Des() );
       
   198     TInt err = iClient.SendReceive( NRequest::EGetLastNotifiedtPacket, TIpcArgs( &ptrBuf ));    
       
   199     if ( !err )
       
   200         {
       
   201         TXIMPObjectPacker< CPresenceBuddyInfoImp >::UnPackL( *buddyInfo, *presInfoDes );
       
   202         CleanupStack::PopAndDestroy( presInfoDes );                          
       
   203         aClient.HandlePresenceNotificationL( KErrNone, buddyInfo );
       
   204         CleanupStack::Pop( buddyInfo );         
       
   205         }
       
   206     else
       
   207         {
       
   208         CleanupStack::PopAndDestroy( presInfoDes );         
       
   209         CleanupStack::PopAndDestroy( buddyInfo );          
       
   210         }
       
   211     }
       
   212 
       
   213 // end of file