--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuieng/EngSrc/CCAStorageObserver.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,175 @@
+/*
+* Copyright (c) 2003-2005 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:  Observes storage events and reacts according to settings
+*
+*/
+
+
+#ifndef CCASTORAGEOBSERVER_H
+#define CCASTORAGEOBSERVER_H
+
+// INCLUDES
+#include "PublicEngineDefinitions.h"
+#include "MCAStoredContactsObserver.h"
+#include "MCAContactLists.h"
+
+#include "impsbuilddefinitions.h"
+#include <e32base.h>
+
+// FORWARD DECLARATIONS
+class MCASettings;
+class MCAStoredContacts;
+class MCAStoredContact;
+class MCAPresence;
+class MCABlocking;
+class MCAIncomingMessages;
+
+// CLASS DECLARATION
+
+/**
+*  Observes storage events and reacts according to settings
+*
+*
+*  @lib CAEngine.lib
+*  @since 2.1
+*/
+class CCAStorageObserver :	public CBase,
+            public MCAStoredContactsObserver
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        * @param aApplicationSettings Settings manager interface
+        * @param aContactStorage Contact storage interface
+        * @param aPresenceHandler Presence manager interface
+        * @param aBlockingManager Blocking manager interface
+        * @param aIncomingMessages Incoming messages interface
+        */
+        static CCAStorageObserver* NewL(
+            MCASettings& aApplicationSettings,
+            MCAStoredContacts& aContactStorage,
+            MCAPresence& aPresenceHandler,
+            MCABlocking& aBlockingManager );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CCAStorageObserver();
+
+    private: // From MCAStoredContactsObserver
+
+        /**
+         * Called when a contact is deleted.
+         * @since 2.1
+         * @param aId The ID of the deleted contact
+         * @param aFromPEC, ETrue, if event is coming from PEC
+         */
+        void HandleContactDelete( const TDesC& aId );
+
+        /**
+         * Called when a contact is added.
+         * @since 2.1
+         * @param aId The ID of the added contact
+         * @param aFromPEC, ETrue, if event is coming from PEC
+         */
+        void HandleAddition( MCAContactList& aList, MCAStoredContact& aContact );
+
+        /**
+         * Called when a contact is changed.
+         * @since 2.1
+         */
+        void HandleChange( MCAContactList* aList, MCAStoredContact* aId,
+                           TStorageManagerGlobals::TCAObserverEventType aEventType,
+                           TBool aUserIdChanged );
+
+        /**
+         * Called when backup/restore starts/stops.
+         * There is no distinction between backup/restore (Symbian limitation).
+         * However, the called party should fetch new list(s) as they
+         * may have changed if the operation was restore operation.
+         * @param aEventType The type of backup/restore event
+         * @since 2.1
+         */
+        void HandleBackupRestoreEvent( const TStorageManagerGlobals::
+                                       TCAObserverEventType aEventType );
+
+    private:
+
+        /**
+        * By default Symbian OS constructor is private.
+        */
+        void ConstructL();
+
+        /**
+        * C++ default constructor.
+        * @see CCAStorageObserver::NewL for parameters
+        */
+        CCAStorageObserver( MCASettings& aApplicationSettings,
+                            MCAStoredContacts& aContactStorage,
+                            MCAPresence& aPresenceHandler,
+                            MCABlocking& aBlockingManager );
+
+        /**
+         * Handles deletion of contact
+         * @param aUserId User id
+         */
+        void IMHandleDelete( const TDesC& aUserId );
+
+        /**
+         * Handles addition of contact
+         * @param aContact contact data
+         */
+        void IMHandleAddition( MCAStoredContact& aContact );
+
+        /**
+         * Calls blocking manager's delete contact
+         * @param aUserId User id
+         */
+        void DoBlockingManagerDeleteL( const TDesC& aUserId );
+
+        /**
+         * Calls blocking manager's add contact
+         * @param aUserId User Id
+         */
+        void DoBlockingManagerAdditionL( const TDesC& aUserId );
+
+        /**
+         * Checks contact's blocking status and pending messages
+         * @param aContact contact data
+         */
+        void DoUpdateContactStatus( MCAStoredContact& aContact );
+        /**
+         * Handles the possible errors
+         * @param aError error code
+         */
+        void HandleError( TInt aError );
+
+    private:    // Data
+        // Doesn't own.
+        MCASettings& iApplicationSettings;
+        // Doesn't own.
+        MCAStoredContacts& iContactStorage;
+        // Doesn't own.
+        MCAPresence& iPresenceHandler;
+        // Doesn't own.
+        MCABlocking& iBlockingManager;
+
+        // Owns
+        HBufC* iLastUserId;
+    };
+
+#endif      // CCASTORAGEOBSERVER_H
+
+// End of File