diff -r fb3763350a08 -r 4d54b72983ae taskswitcher/contextengine/tsfswpreviewprovider/inc/tspropertylistener.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/taskswitcher/contextengine/tsfswpreviewprovider/inc/tspropertylistener.h	Tue Jan 26 11:48:23 2010 +0200
@@ -0,0 +1,70 @@
+/*
+* Copyright (c) 2008 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".
+*/
+
+
+#ifndef TSPROPERTYLISTENER_H
+#define TSPROPERTYLISTENER_H
+
+#include <e32base.h>
+#include <e32property.h>
+
+#include "tspreviewobserver.h"
+
+// Publish & subscribe UID (akncapserver.exe SID so that it can define the keys)
+const TUid KPSUidPreviewProvider = { 0x10207218 };
+
+// P&S keys
+const TUint32 KPSKeyWgId = 0x20016BE1;
+const TUint32 KPSKeyFbsBitmapId = 0x20016BE2;
+const TUint32 KPSKeyOperation = 0x20016BE3;
+/**
+ * Operation which will be done after P&S keys have changed.
+ */
+enum TPreviewOperation
+    {
+    EOperationNone,
+    EOperationUnregister,
+    EOperationBitmapUpdated
+    };
+
+/**
+ * CPropertyListener
+ */
+NONSHARABLE_CLASS( CTsPropertyListener ) : public CActive
+    {
+public:
+    static CTsPropertyListener* NewL( MTsFastSwapPreviewObserver& aObs );
+    virtual ~CTsPropertyListener();
+    
+protected:
+    CTsPropertyListener( MTsFastSwapPreviewObserver& aObs );
+    void ConstructL();  
+
+private: // From CActive
+    void RunL();
+    void DoCancel();
+    
+private:    
+    void ReadPropertiesL();
+    void DefinePropertyL( TInt aPSKey ); 
+    void Subscribe();
+
+private:
+    MTsFastSwapPreviewObserver& iObs;
+    RProperty iProperty;
+   
+    TInt iWgId;
+    TInt iFbsBitmapId;
+    
+    TPreviewOperation iOperation;
+    };
+
+#endif // TSPROPERTYLISTENER_H
+
+// End of file