--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuipresence/src/CCAPEngListObserver.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,172 @@
+/*
+* Copyright (c) 2002-2005 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:  Observer class for active presence list handling
+*               (Contact-list updater/ Attribute-list publisher ).
+*
+*/
+
+
+#ifndef CCAPENGLISTOBSERVER_H
+#define CCAPENGLISTOBSERVER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <MPEngContactListObserver2.h>
+
+#include <badesca.h>
+
+// FORWARD DECLARATIONS
+class CPEngContactListNotifier;
+class MCAStoredContacts;
+class CPEngContactListStore2;
+class CPEngNWSessionSlotID2;
+class CPEngPresenceNotifier2;
+class MCAPresenceUpdater;
+
+// CLASS DECLARATION
+
+/**
+ *  Observer class for contact list events.
+ *
+ *  @lib CAPresence.dll
+ *  @since 2.1
+ */
+class CCAPEngListObserver :	public CBase,
+            public MPEngContactListObserver2
+    {
+
+    public:  // Constructors and destructor
+
+        /**
+         * Two-phased constructor.
+         */
+        static CCAPEngListObserver* NewL( CPEngNWSessionSlotID2* aSessionSlotID,
+                                          CPEngPresenceNotifier2& aAttributeNotifier,
+                                          RArray<TUint32>& aHandledAttributes,
+                                          MCAPresenceUpdater& aUpdater );
+
+        /**
+         * Destructor.
+         */
+        virtual ~CCAPEngListObserver();
+
+    public: // New functions
+
+        /**
+         * Set the active contact list name
+         * for the list observer. All other lists are ignored
+         * except the list set as active.
+         * @param aListId The contact list id
+         * @since 2.1
+         */
+        void SetActiveListIdL( const TDesC& aListId );
+
+        /**
+         * Set the contact list names for the list observer.
+         * @param aListIds The contact list ids
+         * @since 3.0
+         */
+        void SetListIds( const MDesCArray& aListIds );
+
+        /**
+         * Skips storage removal next time HandleContactListChange gets called
+         */
+        void SkipStorageRemoval();
+
+        /**
+         * Clears old values from list notifier.
+         */
+        void ClearListNotifier();
+
+        /**
+         * Start notifying list.
+         * @param aListId, List id for list to be notified.
+         */
+        void StartNotifier( const TDesC& aListId );
+
+        /**
+         * Add list to notifier. Will start notifier if not already started.
+         * @param aListId, List id for list to be notified.
+         */
+        void AddL( const TDesC& aListId );
+
+        /**
+         * Remove list from notifier. If last list is removed, the
+         * notifier is stopped.
+         * @param aListId, List id for list to be notified.
+         */
+        void Remove( const TDesC& aListId );
+
+
+    protected: // From MPEngContactListTransactionObserver2
+
+        /**
+         * @see MPEngContactListTransactionObserver2
+         * @since 2.1
+         */
+        void HandleContactListChangeL( CPEngContactListNotifier2& aNotifier,
+                                       const TDesC& aContactListName );
+
+        /**
+         * @see MPEngContactListTransactionObserver2
+         * @since 2.1
+         */
+        void HandleContactListError( TInt aError,
+                                     CPEngContactListNotifier2& aNotifier );
+
+
+    private: // internal functions
+
+        /**
+         * C++ default constructor.
+         */
+        CCAPEngListObserver( CPEngPresenceNotifier2& aAttributeNotifier,
+                             RArray<TUint32>& aHandledAttributes,
+                             MCAPresenceUpdater& aUpdater );
+
+        /**
+         * By default Symbian 2nd phase constructor is private.
+         */
+        void ConstructL( CPEngNWSessionSlotID2* aSessionSlotID );
+
+    private:    // Data
+
+        // notifier for contact list events
+        CPEngContactListNotifier2* iPEngContactListNotifier; // owns
+
+        // memory cache of contacts
+        MCAStoredContacts* iStoredContacts;
+
+        // active contact list name
+        HBufC* iActiveListId; /// owns
+
+        // skip removal from storage in HandleContactListChange
+        TBool iSkipRemoval;
+
+        // owns. PEC contact list store
+        CPEngContactListStore2* iContactListStore;
+
+        // handle to attributenotifier
+        CPEngPresenceNotifier2& iAttributeNotifier;
+
+        // Array of attributes handled
+        RArray<TUint32>& iAttributes;
+
+        // Presence updater
+        MCAPresenceUpdater& iPresenceUpdater;
+    };
+
+#endif      // CCAPENGLISTOBSERVER_H 
+
+// End of File