upnpmediaserver/mediaserverengine/src/upnpmediaservereventhandler.cpp
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     1 /** @file
       
     2 * Copyright (c) 2005-2006 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:  Media Server event handler
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include "upnpmediaservereventhandler.h"
       
    21 #include "upnpmediaserversession.h"
       
    22 #include "upnpfiletransfereventlist.h"
       
    23 #include "upnpfiletransferevent.h"
       
    24 #include "upnpmediaserver.pan"
       
    25 #include <s32mem.h>
       
    26 
       
    27 // -----------------------------------------------------------------------------
       
    28 // CUpnpMediaServerEventHandler::NewL
       
    29 // Two-phased constructor.
       
    30 // -----------------------------------------------------------------------------
       
    31 //
       
    32 CUpnpMediaServerEventHandler* CUpnpMediaServerEventHandler::NewL(CUpnpMediaServer* aServer)
       
    33     {
       
    34     CUpnpMediaServerEventHandler* self = CUpnpMediaServerEventHandler::NewLC(aServer); 
       
    35     CleanupStack::Pop( self ) ;
       
    36     return self ;
       
    37     }
       
    38 
       
    39 // -----------------------------------------------------------------------------
       
    40 // CUpnpMediaServerEventHandler::NewLC
       
    41 // Two-phased constructor.
       
    42 // -----------------------------------------------------------------------------
       
    43 //
       
    44 CUpnpMediaServerEventHandler* CUpnpMediaServerEventHandler::NewLC(CUpnpMediaServer* aServer)
       
    45     {
       
    46     CUpnpMediaServerEventHandler* self = new (ELeave) CUpnpMediaServerEventHandler(aServer);
       
    47     CleanupStack::PushL( self );
       
    48     self->ConstructL() ;
       
    49     return self ;
       
    50     }
       
    51 
       
    52 // -----------------------------------------------------------------------------
       
    53 // CUpnpMediaServerEventHandler::EventMediaServerSubscribeEventsL
       
    54 // Two-phased constructor.
       
    55 // -----------------------------------------------------------------------------
       
    56 //
       
    57 void CUpnpMediaServerEventHandler::EventMediaServerSubscribeEvents( const RMessage2& aMessage )
       
    58     {    
       
    59     iMediaServer->SubscribeEvents(this);
       
    60     aMessage.Complete( KErrNone );
       
    61     }
       
    62 
       
    63 // -----------------------------------------------------------------------------
       
    64 // CUpnpMediaServerEventHandler::EventMediaServerUnsubscribeEventsL
       
    65 // Two-phased constructor.
       
    66 // -----------------------------------------------------------------------------
       
    67 //
       
    68 void CUpnpMediaServerEventHandler::EventMediaServerUnsubscribeEvents( const RMessage2& aMessage )
       
    69     {        
       
    70     if ( iListenRequestPending )
       
    71         {
       
    72         iCurrentMessage.Complete( KErrNone );
       
    73         }
       
    74     iMediaServer->UnsubscribeEvents(this);    
       
    75     aMessage.Complete( KErrNone );
       
    76     }
       
    77 
       
    78 // -----------------------------------------------------------------------------
       
    79 // CUpnpMediaServerEventHandler::EventMediaServerServerListenTransferEventL
       
    80 // Serves event listening request
       
    81 // -----------------------------------------------------------------------------
       
    82 //
       
    83 void CUpnpMediaServerEventHandler::EventMediaServerServerListenTransferEventL( const RMessage2& aMessage )
       
    84     {    
       
    85     iCurrentMessage = aMessage;
       
    86     
       
    87     if ( iFileTransferEventList->GetPointerArray().Count() > 0 )
       
    88         {   
       
    89         ListenTransferEventCompleteL();
       
    90         }
       
    91     else
       
    92         {
       
    93         iListenRequestPending = ETrue;
       
    94         }    
       
    95     }
       
    96 
       
    97 // -----------------------------------------------------------------------------
       
    98 // CUpnpMediaServerEventHandler::EventMediaServerGetTransferEventBodyL
       
    99 // Sends event list body to client
       
   100 // -----------------------------------------------------------------------------
       
   101 //
       
   102 void CUpnpMediaServerEventHandler::EventMediaServerGetTransferEventBodyL( const RMessage2& aMessage )
       
   103     {
       
   104     aMessage.WriteL(0, *iResponseBuffer);
       
   105     aMessage.Complete( KErrNone );
       
   106     delete iResponseBuffer;
       
   107     iResponseBuffer = NULL;
       
   108     }
       
   109 
       
   110 // -----------------------------------------------------------------------------
       
   111 // CUpnpMediaServerEventHandler::CUpnpMediaServerEventHandler
       
   112 // Constructor.
       
   113 // -----------------------------------------------------------------------------
       
   114 //
       
   115 CUpnpMediaServerEventHandler::CUpnpMediaServerEventHandler(CUpnpMediaServer* aServer)
       
   116     :iMediaServer(aServer), iRespLengthPkg(iRespLength)
       
   117     {
       
   118     }
       
   119 
       
   120 
       
   121 // -----------------------------------------------------------------------------
       
   122 // CUpnpMediaServerEventHandler::~CUpnpMediaServerEventHandler()
       
   123 // Destructor.
       
   124 // -----------------------------------------------------------------------------
       
   125 //
       
   126 CUpnpMediaServerEventHandler::~CUpnpMediaServerEventHandler()
       
   127     {
       
   128     if(iMediaServer)
       
   129         {        
       
   130         iMediaServer->UnsubscribeEvents(this);
       
   131         }
       
   132     delete iResponseBuffer;
       
   133     delete iFileTransferEventList;
       
   134     }
       
   135 
       
   136 
       
   137 // -----------------------------------------------------------------------------
       
   138 // CUpnpMediaServerSession::ConstructL
       
   139 // Symbian 2nd phase constructor can leave.
       
   140 // -----------------------------------------------------------------------------
       
   141 //
       
   142 void CUpnpMediaServerEventHandler::ConstructL()
       
   143     {
       
   144     iFileTransferEventList = CUpnpFileTransferEventList::NewL();
       
   145 	}
       
   146 
       
   147 // -----------------------------------------------------------------------------
       
   148 // CUpnpMediaServerEventHandler::FileTransferEvent
       
   149 // File transfer event callback method.(from MUpnpContentDirectoryObserver)
       
   150 // -----------------------------------------------------------------------------
       
   151 //
       
   152 void CUpnpMediaServerEventHandler::FileTransferEvent( CUpnpFileTransferEvent *aEvent )
       
   153     {
       
   154     TRAP_IGNORE( ServeEventL( aEvent ) );
       
   155     }
       
   156 
       
   157 
       
   158 // -----------------------------------------------------------------------------
       
   159 // CUpnpMediaServerEventHandler::ServeEventL
       
   160 // Serves incoming transfer event
       
   161 // -----------------------------------------------------------------------------
       
   162 //
       
   163 void CUpnpMediaServerEventHandler::ServeEventL(CUpnpFileTransferEvent *aEvent) 
       
   164     {
       
   165     iFileTransferEventList->GetPointerArray().AppendL( aEvent->CloneL() );
       
   166     if (iListenRequestPending)
       
   167         {
       
   168         ListenTransferEventCompleteL();
       
   169         }
       
   170     }
       
   171 
       
   172 // -----------------------------------------------------------------------------
       
   173 // CUpnpMediaServerEventHandler::ListenTransferEventCompleteL
       
   174 // Serialize events queue and sends buffer length to client
       
   175 // -----------------------------------------------------------------------------
       
   176 //
       
   177 void CUpnpMediaServerEventHandler::ListenTransferEventCompleteL()
       
   178     {
       
   179     iResponseBuffer = iFileTransferEventList->ToDes8L(); 
       
   180     iFileTransferEventList->GetPointerArray().ResetAndDestroy();
       
   181     iRespLength = iResponseBuffer->Des().Size();
       
   182     iCurrentMessage.WriteL(0, iRespLengthPkg);
       
   183     iCurrentMessage.Complete( KErrNone );
       
   184     iListenRequestPending = EFalse;
       
   185     }
       
   186 
       
   187 
       
   188   
       
   189