internetradio2.0/songhistorysrc/irsonghistoryengpubsub.cpp
changeset 0 09774dfdd46b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/internetradio2.0/songhistorysrc/irsonghistoryengpubsub.cpp	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,141 @@
+/*
+* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Publish / Subscriber class for ChannelName and MetaData
+*
+*/
+
+
+#include "irsonghistoryengpubsub.h"
+#include "irsonghistoryengpubsubnotifyhandler.h"
+#include "irdebug.h"
+
+
+// ==================== MEMBER FUNCTIONS ===================
+
+// ---------------------------------------------------------------------------
+// CIRSongHistoryEngPubSub::CIRSongHistoryEngPubSub
+// Constructor.
+// ---------------------------------------------------------------------------
+//
+CIRSongHistoryEngPubSub::CIRSongHistoryEngPubSub(
+	MIRSongHistoryEngPubSubNotifyHandler& aPubSubObserver, const TUid& aCategory,
+	TUint aKey , const RProperty::TType aPropertyType): CActive( CActive::
+	EPriorityStandard ),  iPropertyType(aPropertyType),iPubSubObserver( aPubSubObserver ),
+	iCategory( aCategory ), iKey( aKey )
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// CIRSongHistoryEngPubSub::ConstructL
+// Second-phase constructor
+// ---------------------------------------------------------------------------
+//
+void CIRSongHistoryEngPubSub::ConstructL()
+    {
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::ConstructL" );
+    User::LeaveIfError( iProperty.Attach( iCategory, iKey ) );
+    CActiveScheduler::Add( this );
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::ConstructL - Exiting." );
+    }
+
+//-----------------------------------------------------------------------------
+//  CIRHistoryListContainer::NewL
+//  Creates a new instance of CIRSongHistoryEngPubSub
+//-----------------------------------------------------------------------------
+//
+CIRSongHistoryEngPubSub* CIRSongHistoryEngPubSub::NewL(
+	MIRSongHistoryEngPubSubNotifyHandler& aPubSubObserver, const TUid& aCategory,
+	TUint aKey, const RProperty::TType aPropertyType  )
+    {
+	IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewL - Entering" );
+    CIRSongHistoryEngPubSub* self = CIRSongHistoryEngPubSub::NewLC(aPubSubObserver,
+    					 aCategory,aKey, aPropertyType  );
+    CleanupStack::Pop(self);
+	IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewL - Exiting." );
+    return self;
+    }
+
+//-----------------------------------------------------------------------------
+//  CIRHistoryListContainer::NewLC
+//  Creates a new instance of CIRSongHistoryEngPubSub and leaves it on the cleanup stack.
+//-----------------------------------------------------------------------------
+//
+CIRSongHistoryEngPubSub* CIRSongHistoryEngPubSub::NewLC(
+	MIRSongHistoryEngPubSubNotifyHandler& aPubSubObserver, const TUid& aCategory,
+	TUint aKey, const RProperty::TType aPropertyType  )
+    {
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewLC - Entering" );
+    CIRSongHistoryEngPubSub* self = new (ELeave) CIRSongHistoryEngPubSub(
+    							aPubSubObserver, aCategory, aKey, aPropertyType);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+	IRLOG_DEBUG( "CIRSongHistoryEngPubSub::NewLC - Exiting." );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub()
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub()
+    {
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub" );
+    Cancel();
+    iProperty.Close();
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::~CIRSongHistoryEngPubSub - Exiting." );
+    }
+
+// ---------------------------------------------------------------------------
+// CIRSongHistoryEngPubSub::DoCancel()
+// Invoked when the active object is cancelled.
+// ---------------------------------------------------------------------------
+//
+void CIRSongHistoryEngPubSub::DoCancel()
+    {
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::DoCancel" );
+    iProperty.Cancel();
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::DoCancel - Exiting." );
+    }
+
+// ---------------------------------------------------------------------------
+// CIRSongHistoryEngPubSub::RunL()
+// The function is called by the active scheduler when a request completion event occurs,
+// ---------------------------------------------------------------------------
+//
+void CIRSongHistoryEngPubSub::RunL()
+    {
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::RunL" );
+
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    TInt err(KErrNone);
+
+
+	err = iProperty.Get( iText );
+	if (!err)
+		{
+			iPubSubObserver.HandlePropertyChangeL( iCategory, iKey, iText );
+		}
+
+    else
+    	{
+        	iPubSubObserver.HandlePropertyChangeErrorL(iCategory, iKey, err);
+    	}
+
+    IRLOG_DEBUG( "CIRSongHistoryEngPubSub::RunL - Exiting." );
+    }