diff -r 82749d516180 -r 2eb74cf6572e imagehandlingutilities/thumbnailmanager/tmcommon/src/tmsrproptertyobserver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imagehandlingutilities/thumbnailmanager/tmcommon/src/tmsrproptertyobserver.cpp	Fri Mar 12 15:43:57 2010 +0200
@@ -0,0 +1,121 @@
+/*
+* 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:  RPropery observer 
+*
+*/
+
+
+#include <e32base.h>
+
+#include "tmrpropertyobserver.h"
+#include "thumbnailmanagerconstants.h"
+#include "thumbnaillog.h"
+
+// ---------------------------------------------------------------------------
+// CTMRPropertyObserver::NewL()
+// ---------------------------------------------------------------------------
+//
+CTMRPropertyObserver* CTMRPropertyObserver::NewL( MTMRPropertyObserver& aObserver,
+                                                const TUid& aKeyCategory,
+                                                const TInt aPropertyKey,
+                                                TBool aDefineKey)
+    { 
+    CTMRPropertyObserver* self = new( ELeave )CTMRPropertyObserver( aObserver, 
+                                                                  aKeyCategory,
+                                                                  aPropertyKey,
+                                                                  aDefineKey);
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CTMRPropertyObserver::CTMRPropertyObserver()
+// ---------------------------------------------------------------------------
+//
+CTMRPropertyObserver::CTMRPropertyObserver( MTMRPropertyObserver& aObserver,
+                                          const TUid& aKeyCategory,
+                                          const TInt aPropertyKey,
+                                          TBool aDefineKey)
+    : CActive( CActive::EPriorityStandard ), iObserver( aObserver ),
+      iKeyCategory( aKeyCategory ), iPropertyKey(aPropertyKey), iDefineKey( aDefineKey )
+    {   
+    CActiveScheduler::Add( this );
+    }
+
+// ---------------------------------------------------------------------------
+// CTMRPropertyObserver::ConstructL()
+// ---------------------------------------------------------------------------
+//
+void CTMRPropertyObserver::ConstructL()
+    { 
+    TN_DEBUG1( "CTMRPropertyObserver::ConstructL()");
+    // define P&S property types
+    if (iDefineKey)
+        {
+        RProperty::Define(iKeyCategory,iPropertyKey,
+                          RProperty::EInt);
+        }
+    
+    // attach to the property
+    TInt err = iProperty.Attach(iKeyCategory,iPropertyKey,EOwnerThread);
+    User::LeaveIfError(err);
+    
+    SetActive();
+    TRequestStatus* statusPtr = &iStatus;
+    User::RequestComplete( statusPtr, KErrNone );
+    }
+
+// ---------------------------------------------------------------------------
+// CTMRPropertyObserver::~CTMRPropertyObserver()
+// ---------------------------------------------------------------------------
+//
+CTMRPropertyObserver::~CTMRPropertyObserver()
+    {
+    TN_DEBUG1( "CTMRPropertyObserver::~CTMRPropertyObserver()");
+    Cancel();
+    iProperty.Close();
+    }
+
+// ---------------------------------------------------------------------------
+// CTMRPropertyObserver::RunL()
+// ---------------------------------------------------------------------------
+//
+void CTMRPropertyObserver::RunL()
+    {
+    TN_DEBUG1( "CTMRPropertyObserver::RunL()");
+    // resubscribe before processing new value to prevent missing updates
+    iProperty.Subscribe(iStatus);
+    SetActive();
+    
+    // retrieve the value
+    TInt value = 0;
+    TInt ret = iProperty.Get(value);
+
+    // observer callback
+    iObserver.RPropertyNotification(ret, iKeyCategory, iPropertyKey, value);
+    }
+
+// ---------------------------------------------------------------------------
+// CTMRPropertyObserver::DoCancel()
+// ---------------------------------------------------------------------------
+//
+void CTMRPropertyObserver::DoCancel()
+    {
+    TN_DEBUG1( "CTMRPropertyObserver::DoCancel()");
+    iProperty.Cancel();
+    }
+
+// End of file