--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiObserverArray.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,108 @@
+/*
+* 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
+*
+*/
+
+
+
+#ifndef __HUI_OBSERVER_ARRAY_H__
+#define __HUI_OBSERVER_ARRAY_H__
+
+#include <uiacceltk/HuiPanic.h>
+
+/**
+ * Observer array template.
+ */
+template< class T >
+class RHuiObserverArray
+    {
+public:
+    RHuiObserverArray()
+        {
+        }
+
+    void Reset()
+        {
+        iObservers.Reset();
+        }
+        
+    void Close()
+        {
+        iObservers.Close();
+        }        
+    
+    void AppendL(T& aObserver)
+        {
+        __ASSERT_ALWAYS(iObservers.Find(&aObserver) == KErrNotFound,
+                        THuiPanic::Panic(THuiPanic::EDuplicateObserver));
+        User::LeaveIfError( iObservers.Append(&aObserver) );
+        }
+
+    void AppendIfNotFoundL(T& aObserver)
+        {
+        if(iObservers.Find(&aObserver) == KErrNotFound)
+            {
+            User::LeaveIfError( iObservers.Append(&aObserver) );
+            }
+        }
+        
+    void Remove(T& aObserver)
+        {
+        TInt index = iObservers.Find(&aObserver);
+        if(index == KErrNotFound)
+            {
+            THuiPanic::Panic(THuiPanic::EObserverNotFound);
+            }
+        iObservers.Remove(index);
+        }
+
+    void RemoveIfFound(T& aObserver)
+        {
+        TInt index = iObservers.Find(&aObserver);
+        if(index != KErrNotFound)
+            {
+            iObservers.Remove(index);
+            }
+        }
+
+    inline TInt Count() const
+        {
+        return iObservers.Count();
+        }
+        
+    inline T& operator[] (TInt aIndex) const
+        {
+        return *iObservers[aIndex];
+        }
+
+
+private:
+
+    /* Private methods. */
+    
+    /**
+     * Assignment is not allowed.  
+     */
+    RHuiObserverArray& operator = (const RHuiObserverArray& aObserverArray);
+    
+    
+private:
+    RArray<T*> iObservers;
+    TInt iSpare1;
+    TInt iSpare2;
+    };
+    
+
+#endif // __HUI_OBSERVER_ARRAY_H__