--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/menufwui/matrixmenu/inc/mmpropertysubscriber.h	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,85 @@
+/*
+* 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".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Subscribes properties from P&S
+ *
+*/
+
+#ifndef MMPROPERTYSUBSCRIBER_H
+#define MMPROPERTYSUBSCRIBER_H
+
+#include <e32base.h>	// For CActive, link against: euser.lib
+#include <e32property.h>
+// Observer for property change. Currently integer value supported
+class MMmPropertyChangeObserver
+    {
+public:    
+    virtual void PropertyChangedL(TInt aValue)=0;
+    };
+
+/**
+*  Subcribes property from P&S and listen property changes
+* 
+*  @lib xn3layoutengine.lib
+*  @since Series 60 5.0
+*/
+NONSHARABLE_CLASS( CMmPropertySubscriber ) : public CActive
+    {
+public:
+    // Cancel and destroy
+    ~CMmPropertySubscriber();
+
+    /**
+    * Two-phased constructor.
+    * @param aUid P&S property category
+    * @param aKey P&S property key
+    * @param aObserver Given property change observer
+    */
+    static CMmPropertySubscriber* NewL(
+            const TUid aUid, 
+            const TUint32 aKey,
+            MMmPropertyChangeObserver& aObserver);
+
+    /**
+    * Two-phased constructor.
+    * @param aUid P&S property category
+    * @param aKey P&S property key
+    * @param aObserver Given property change observer
+    */
+    static CMmPropertySubscriber* NewLC(
+            const TUid aUid, 
+            const TUint32 aKey,
+            MMmPropertyChangeObserver& aObserver);
+
+private:
+    // C++ constructor
+    CMmPropertySubscriber(MMmPropertyChangeObserver& aObserver);
+
+    // Second-phase constructor
+    void ConstructL(const TUid aUid,const TUint32 aKey);
+
+private: // From CActive
+    // Handle completion
+    void RunL();
+
+    // How to cancel me
+    void DoCancel();
+    
+private:
+    //Observer for property changes
+    MMmPropertyChangeObserver& iPropertyChangeObserver;
+    // Property to listen
+    RProperty iProperty;
+    };
+
+#endif // MMPROPERTYSUBSCRIBER_H