--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contacts_plat/phonebook_2_contact_related_icon_customization_api/inc/MCustomIconChangeObserver.h	Mon Mar 15 12:39:26 2010 +0200
@@ -0,0 +1,102 @@
+/*
+* Copyright (c) 2008-2009 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 interface for custom icon change events.
+*/
+
+#ifndef MCUSTOMICONCHANGEOBSERVER_H
+#define MCUSTOMICONCHANGEOBSERVER_H
+
+// INCLUDES
+#include <e32base.h>
+#include <ContactCustomIconPluginDefs.h>
+
+// FORWARD DECLARATIONS
+class CContactCustomIconPluginBase;
+
+// CLASS DECLARATION
+
+/**
+ * Observer interface for custom icon change events.
+ */
+class MCustomIconChangeObserver
+    {
+    public: // Notifications from plug-in to client
+
+        /**
+         * Icon event type definitions
+         */
+        enum TEventType
+            {
+            /**
+             * General icon update notification indicates that some
+             * or all of the icons have changed in some manner (update,
+             * removed, added).
+             * Client app should update all custom icons.
+             */
+            EIconsMajorChange,
+
+            /**
+             * Icons have been updated.
+             */
+            EIconsUpdated,
+
+            /**
+             * Some of the icons have been removed.
+             */
+            EIconsRemoved,
+
+            /**
+             * There are new icons available.
+             */
+            EIconsAdded
+            };
+
+        /**
+         * Icon change notification event from plug-in to the client.
+         * Indicates that one or more of the icons have become invalid. Client
+         * needs to refresh its view by loading and drawing new icons.
+         *
+         * @param aPlugin       Plug-in, which initiated this notification. Plug-in
+         *                      should provide 'this' reference.
+         * @param aEventType    Event type, @see TEventType
+         * @param aIconIds      Icon id array indicating the icons, which have changed.
+         *                      While have to be given-in by plug-in, semantics of
+         *                      the parameter are loose. Specifically empty array
+         *                      means the TEventType concerns all possible icons.
+         */
+        virtual void CustomIconEvent(
+                CContactCustomIconPluginBase& aPlugin,
+                TEventType aEventType,
+                const TArray<TCustomIconId>& aIconIds ) = 0;
+
+        /**
+         * Factory function for getting access to extended notifications. Uid
+         * defines the extension interface being used.
+         *
+         * @param aNotificationUid  Identifier for an extension API class.
+         * @return  Extension class.
+         */
+        virtual TAny* IconChangeNotificationExtension(
+                    TUid /*aNotificationUid*/ )
+            {
+            return NULL;
+            }
+
+    protected: // Disabled functions
+        ~MCustomIconChangeObserver() {}
+    };
+
+#endif // MCUSTOMICONCHANGEOBSERVER_H
+
+// End of File