diff -r 759dc5235cdb -r bf7eb7911fc5 ipsservices/ipssosplugin/inc/ipsstateextension.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipsservices/ipssosplugin/inc/ipsstateextension.h	Wed Jun 23 18:00:21 2010 +0300
@@ -0,0 +1,66 @@
+/*
+* Copyright (c) 2007 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: This file defines class CIpsPlgSosBasePlugin.
+*
+*/
+#ifndef IPSSTATEEXTENSION_H
+#define IPSSTATEEXTENSION_H
+
+#include <cmailboxstateext.h>
+#include "ipsplgcommon.h"
+
+class MEmailMailboxState;
+
+class MStateObserverCallback
+    {
+public:
+    virtual void ActiveFolderChanged(
+            const TFSMailMsgId& aActiveMailboxId,
+            const TFSMailMsgId& aActiveFolderId)=0;
+    };
+
+NONSHARABLE_CLASS ( CIpsStateExtension ) :
+    public CMailboxStateExtension
+    {
+public: //from CMailboxStateExtension
+
+    static CIpsStateExtension* NewL(MStateObserverCallback& aCallback);
+
+    /**
+     * Sets data provider interface.
+     * @param aDataProvider data provider.
+     */
+    void SetStateDataProvider( MEmailMailboxState* aDataProvider );
+    
+    /**
+    * Notification that folder has changed in email application.
+    * @param aActiveMailboxId id of the mailbox container the folder
+    * @param aActiveFolderId currently active folder id or null id if
+    *        there's currently no active folder (e.g. application is closed)
+    */
+    void NotifyActiveFolderChanged(
+        const TFSMailMsgId& aActiveMailboxId,
+        const TFSMailMsgId& aActiveFolderId);
+    
+    virtual ~CIpsStateExtension();
+private:
+    CIpsStateExtension(MStateObserverCallback& aCallback);
+    void ConstructL();
+    
+private:
+    MEmailMailboxState*         iDataProvider;//not owned    
+    MStateObserverCallback&     iCallback;
+    };
+
+#endif //IPSSTATEEXTENSION_H