--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/internetradio2.0/uisrc/irchangeobserver.cpp	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,147 @@
+/*
+* 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:  ?Description
+*
+*/
+ 
+
+#include "irchangeobserver.h"
+#include "irdebug.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CIRObserver::CIRObserver
+// C++ default constructor CIRObserver
+// -----------------------------------------------------------------------------
+//
+CIRObserver::CIRObserver(MIRChangeObserver& aObserver, const TUid& aCategory, 
+	const TUint aKey, const RProperty::TType aPropertyType)
+    : CActive( CActive::EPriorityLow ),
+    iObserver( aObserver ),
+    iCategory( aCategory ),
+    iKey( aKey ),
+    iPropertyType( aPropertyType )
+	{
+	IRLOG_DEBUG( "CIRObserver::CIRObserver" );
+	}
+
+// -----------------------------------------------------------------------------
+// CIRObserver::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CIRObserver::ConstructL()
+	{
+	IRLOG_DEBUG( "CIRObserver::ConstructL - Entering" );
+    User::LeaveIfError( iProperty.Attach( iCategory, iKey ) );
+    CActiveScheduler::Add( this );
+    RunL();
+	IRLOG_DEBUG( "CIRObserver::ConstructL - Exiting." );
+	}
+
+// -----------------------------------------------------------------------------
+// CIRObserver::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CIRObserver* CIRObserver::NewL(MIRChangeObserver& aObserver, const TUid& 
+	aCategory, const TUint aKey, const RProperty::TType aPropertyType)
+	{
+	IRLOG_DEBUG( "CIRObserver::NewL - Entering" );
+    CIRObserver* self = new( ELeave )CIRObserver( aObserver, aCategory, aKey,
+    	aPropertyType );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+	IRLOG_DEBUG( "CIRObserver::NewL - Exiting." );
+    return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CIRObserver::~CIRObserver
+// C++ default destructor
+// -----------------------------------------------------------------------------
+//
+CIRObserver::~CIRObserver()
+	{
+	IRLOG_DEBUG( "CIRObserver::~CIRObserver - Entering" );
+	Cancel();
+	iProperty.Close(); //Closes the publish and subscribe handler
+	IRLOG_DEBUG( "CIRObserver::~CIRObserver - Exiting." );
+	}
+
+// -----------------------------------------------------------------------------
+// CIRObserver::RunL
+// The function is called by the active scheduler 
+// when a request completion event occurs
+// -----------------------------------------------------------------------------
+//
+void CIRObserver::RunL()
+	{
+	IRLOG_DEBUG( "CIRObserver::RunL - Entering" );
+	//Subscribe the handler
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    TInt err(KErrNone);
+    switch (iPropertyType)
+        {
+        case RProperty::EInt:
+	        {
+	        err = iProperty.Get( iValueInt );
+	        if (!err)
+            	{
+            	//callback function called when a property value of type int.
+                iObserver.HandleChangeL( iCategory, iKey, iValueInt );
+             	}
+	        break;
+	        }
+	     case RProperty::EText:
+	        {
+	        break;
+	       	}
+	    default:
+	        {
+	        break;
+	        }
+        }
+	  IRLOG_DEBUG( "CIRObserver::RunL - Exiting." );
+      }
+
+// -----------------------------------------------------------------------------
+// CIRObserver::DoCancel
+// Cancels an outstanding active request
+// -----------------------------------------------------------------------------
+//
+void CIRObserver::DoCancel()
+	{
+	IRLOG_DEBUG( "CIRObserver::DoCancel - Entering" );
+    iProperty.Cancel();
+    IRLOG_DEBUG( "CIRObserver::DoCancel - Exiting" );
+	}
+
+// -----------------------------------------------------------------------------
+// CIRObserver::GetValue
+// -----------------------------------------------------------------------------
+//	
+void CIRObserver::GetValue(TInt& aValue) const
+	{
+	IRLOG_DEBUG( "CIRObserver::GetValue - Entering" );
+	//aValue assigned with the current Property value
+	aValue = iValueInt;
+	IRLOG_DEBUG( "CIRObserver::GetValue - Exiting" );
+	}
+
+// End of File
+