--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/IMPSConnectionUI/NotifySrc/RGenericObserverArrayBase.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,157 @@
+/*
+* Copyright (c) 2004 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:  Generic observer array.
+*
+*/
+
+#ifndef __RGENERICOBSERVERARRAYBASE_H
+#define __RGENERICOBSERVERARRAYBASE_H
+
+//  INCLUDES
+#include <E32Base.h>
+
+
+
+// CLASS DECLARATION
+/**
+ * Observer notify mediator base.
+ *
+ * Base interface to manage observer notifications
+ * and notify errors. Typical implementation will
+ * forward notifications to actual type specific
+ * mediator.
+ *
+ *
+ * the observer array management from actual observer
+ * type specific details. (Type specific details will
+ * be implemented by the concrete mediator.) Usage
+ * of mediator base interface allows geneic
+ * observer array implementation.
+ *
+ * @since 2.1
+ */
+
+NONSHARABLE_CLASS( MGenObserverNotifyMediatorBase )
+    {
+public:
+
+    /**
+     * Observer notification.
+     * This member is internal and not intended for use.
+     */
+    virtual void MediateNotifyL( TAny* aObserverToNotify, TAny* aNotifyData ) = 0;
+
+    /**
+     * Observer notification from error.
+     * This member is internal and not intended for use.
+     */
+    virtual void MediateNotifyError( TAny* aObserverToNotify, TInt aLeaveError ) = 0;
+
+
+    /**
+     * Observer notification from error.
+     * This member is internal and not intended for use.
+     */
+    virtual void MediateError( TAny* aObserverToNotify, TInt aError ) = 0;
+
+
+protected:
+
+    /**
+     * Protected destructor.
+     */
+    virtual ~MGenObserverNotifyMediatorBase() {}
+    };
+
+
+
+
+// CLASS DECLARATION
+/**
+ * Generic observer array.
+ *
+ * Generic observer array to manage observers
+ * and notify them. Observers are managed as
+ * typeless TAny pointers. Notification is done
+ * trough generic MGenObserverNotifyMediatorBase
+ * notify mediator.
+ *
+ * @since 2.1
+ */
+NONSHARABLE_CLASS( RGenericObserverArrayBase ) : private RPointerArrayBase
+    {
+protected: //protected members for derived classes
+
+    /**
+     * C++ constructor.
+     * This member is internal and not intended for use.
+     */
+    RGenericObserverArrayBase();
+
+    /**
+     * Closes the array and frees all memory allocated to it.
+     * This member is internal and not intended for use.
+     */
+    void Close();
+
+    /**
+     * Adds observer.
+     * This member is internal and not intended for use.
+     */
+    TInt AddObserver( const TAny* aObserver );
+
+    /**
+     * Removes observer.
+     * This member is internal and not intended for use.
+     */
+    TInt RemoveObserver( const TAny* aObserver );
+
+    /**
+     * Gets observer count.
+     * This member is internal and not intended for use.
+     */
+    TInt Count();
+
+    /**
+     * Observer notify implementation.
+     * This member is internal and not intended for use.
+     */
+    void NotifyObservers( MGenObserverNotifyMediatorBase& aNotifyMediator,
+                          TAny* aNotifyData );
+
+    /**
+     * Observer notify implementation.
+     * This member is internal and not intended for use.
+     */
+    void NotifyObserversFromError( MGenObserverNotifyMediatorBase& aNotifyMediator,
+                                   TInt aError );
+
+private: //private helpers
+
+    /**
+     * Private helper.
+     * This member is internal and not intended for use.
+     */
+    void FinalizeObsArrayAfterNotifyLoop();
+
+
+private: //Data
+    ///< Flag describing the observer array state, owned
+    TBool iNotifyLoopRunning;
+    };
+
+#endif      //__RGENERICOBSERVERARRAYBASE_H
+//  End of File
+
+