--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappfw_plat/mpx_common_api/inc/mpxpluginmonitorobserver.h	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,56 @@
+/*
+* Copyright (c) 2006 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:  plugin monitor observer
+*
+*/
+
+
+#ifndef MMPXPLUGINMONITOROBSERVER_H
+#define MMPXPLUGINMONITOROBSERVER_H
+
+/**
+*  Observer interface for a plugin monitor.
+*
+*  @lib mpxcommon.lib
+*/
+NONSHARABLE_CLASS(MMPXPluginMonitorObserver)
+    {
+    public:
+
+        /**
+        *  Callback whenever there is a change in loaded plugins. This is
+        *  called from CMPXPluginMonitor::RunL and should not be a long
+        *  running task.
+        *
+        *  @since S60 3.2.3
+        */
+        virtual void PluginsChangedL() = 0;
+
+        /**
+        *  Indicates that a plugin should be unloaded if it is loaded by the observer.
+        *  This call is made when a plugin update is detected by a plugin handler and
+        *  after all old plugin instances are unloaded the plugin handler can load the
+        *  new plugin version. All plugin handlers should maintain the reference count
+        *  for the plugin, as they will get a PluginsChangedL notification following one
+        *  or multiple HandlePluginUnload calls and they will need to know what plugins
+        *  were loaded before the update so they can be reloaded.
+        *
+        *  @since S60 3.2.3
+        */
+        virtual void HandlePluginUnload(const TUid& aPluginUid) = 0;
+    };
+
+#endif      // MMPXPLUGINMONITOROBSERVER_H
+
+