internetradio2.0/songhistorysrc/irsonghistoryengpubsub.cpp
changeset 14 896e9dbc5f19
parent 12 608f67c22514
child 15 065198191975
equal deleted inserted replaced
12:608f67c22514 14:896e9dbc5f19
     1 /*
       
     2 * Copyright (c) 2006-2007 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:  Publish / Subscriber class for ChannelName and MetaData
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "irsonghistoryengpubsub.h"
       
    20 #include "irsonghistoryengpubsubnotifyhandler.h"
       
    21 #include "irdebug.h"
       
    22 
       
    23 
       
    24 // ==================== MEMBER FUNCTIONS ===================
       
    25 
       
    26 // ---------------------------------------------------------------------------
       
    27 // CIRSongHistoryEngPubSub::CIRSongHistoryEngPubSub
       
    28 // Constructor.
       
    29 // ---------------------------------------------------------------------------
       
    30 //
       
    31 CIRSongHistoryEngPubSub::CIRSongHistoryEngPubSub(
       
    32 	MIRSongHistoryEngPubSubNotifyHandler& aPubSubObserver, const TUid& aCategory,
       
    33 	TUint aKey , const RProperty::TType aPropertyType): CActive( CActive::
       
    34 	EPriorityStandard ),  iPropertyType(aPropertyType),iPubSubObserver( aPubSubObserver ),
       
    35 	iCategory( aCategory ), iKey( aKey )
       
    36     {
       
    37     }
       
    38 
       
    39 // ---------------------------------------------------------------------------
       
    40 // CIRSongHistoryEngPubSub::ConstructL
       
    41 // Second-phase constructor
       
    42 // ---------------------------------------------------------------------------
       
    43 //
       
    44 void CIRSongHistoryEngPubSub::ConstructL()
       
    45     {
       
    46     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::ConstructL" );
       
    47     User::LeaveIfError( iProperty.Attach( iCategory, iKey ) );
       
    48     CActiveScheduler::Add( this );
       
    49     iProperty.Subscribe( iStatus );
       
    50     SetActive();
       
    51     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::ConstructL - Exiting." );
       
    52     }
       
    53 
       
    54 //-----------------------------------------------------------------------------
       
    55 //  CIRHistoryListContainer::NewL
       
    56 //  Creates a new instance of CIRSongHistoryEngPubSub
       
    57 //-----------------------------------------------------------------------------
       
    58 //
       
    59 CIRSongHistoryEngPubSub* CIRSongHistoryEngPubSub::NewL(
       
    60 	MIRSongHistoryEngPubSubNotifyHandler& aPubSubObserver, const TUid& aCategory,
       
    61 	TUint aKey, const RProperty::TType aPropertyType  )
       
    62     {
       
    63 	IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewL - Entering" );
       
    64     CIRSongHistoryEngPubSub* self = CIRSongHistoryEngPubSub::NewLC(aPubSubObserver,
       
    65     					 aCategory,aKey, aPropertyType  );
       
    66     CleanupStack::Pop(self);
       
    67 	IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewL - Exiting." );
       
    68     return self;
       
    69     }
       
    70 
       
    71 //-----------------------------------------------------------------------------
       
    72 //  CIRHistoryListContainer::NewLC
       
    73 //  Creates a new instance of CIRSongHistoryEngPubSub and leaves it on the cleanup stack.
       
    74 //-----------------------------------------------------------------------------
       
    75 //
       
    76 CIRSongHistoryEngPubSub* CIRSongHistoryEngPubSub::NewLC(
       
    77 	MIRSongHistoryEngPubSubNotifyHandler& aPubSubObserver, const TUid& aCategory,
       
    78 	TUint aKey, const RProperty::TType aPropertyType  )
       
    79     {
       
    80     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewLC - Entering" );
       
    81     CIRSongHistoryEngPubSub* self = new (ELeave) CIRSongHistoryEngPubSub(
       
    82     							aPubSubObserver, aCategory, aKey, aPropertyType);
       
    83     CleanupStack::PushL(self);
       
    84     self->ConstructL();
       
    85 	IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewLC - Exiting." );
       
    86     return self;
       
    87     }
       
    88 
       
    89 
       
    90 // ---------------------------------------------------------------------------
       
    91 // CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub()
       
    92 // Destructor
       
    93 // ---------------------------------------------------------------------------
       
    94 //
       
    95 CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub()
       
    96     {
       
    97     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub" );
       
    98     Cancel();
       
    99     iProperty.Close();
       
   100     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub - Exiting." );
       
   101     }
       
   102 
       
   103 // ---------------------------------------------------------------------------
       
   104 // CIRSongHistoryEngPubSub::DoCancel()
       
   105 // Invoked when the active object is cancelled.
       
   106 // ---------------------------------------------------------------------------
       
   107 //
       
   108 void CIRSongHistoryEngPubSub::DoCancel()
       
   109     {
       
   110     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::DoCancel" );
       
   111     iProperty.Cancel();
       
   112     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::DoCancel - Exiting." );
       
   113     }
       
   114 
       
   115 // ---------------------------------------------------------------------------
       
   116 // CIRSongHistoryEngPubSub::RunL()
       
   117 // The function is called by the active scheduler when a request completion event occurs,
       
   118 // ---------------------------------------------------------------------------
       
   119 //
       
   120 void CIRSongHistoryEngPubSub::RunL()
       
   121     {
       
   122     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::RunL" );
       
   123 
       
   124     iProperty.Subscribe( iStatus );
       
   125     SetActive();
       
   126     TInt err(KErrNone);
       
   127 
       
   128 
       
   129 	err = iProperty.Get( iText );
       
   130 	if (!err)
       
   131 		{
       
   132 			iPubSubObserver.HandlePropertyChangeL( iCategory, iKey, iText );
       
   133 		}
       
   134 
       
   135     else
       
   136     	{
       
   137         	iPubSubObserver.HandlePropertyChangeErrorL(iCategory, iKey, err);
       
   138     	}
       
   139 
       
   140     IRLOG_DEBUG( "CIRSongHistoryEngPubSub::RunL - Exiting." );
       
   141     }