diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/mw/aknedstsobs.h
--- a/epoc32/include/mw/aknedstsobs.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/mw/aknedstsobs.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,74 @@
-aknedstsobs.h
+/*
+* 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 the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Interface for handling control's state change.
+*
+*/
+
+
+
+#if !defined(__AKNEDSTSOBS_H__)
+#define __AKNEDSTSOBS_H__
+
+// FORWARD DECLERATIONS
+class CAknEdwinState;
+
+
+// CLASS DECLERATION
+/**
+* Interface for handling control's state change.
+* 
+* @since Series 60 0.9
+*/
+class MAknEdStateObserver
+	{
+public:
+	/** 
+    * Observer event types.
+    */
+	enum EAknEdwinStateEvent
+        {
+        /** The state has been updated */ 
+        EAknEdwinStateEventStateUpdate, 
+        /** The input mode has been updated */     
+        EAknEdwinStateInputModeUpdate,
+        /** The case mode has been updated */   
+        EAknEdwinStateCaseModeUpdate,
+        /** The local language has been updated */    
+        EAknEdwinStateLocalLanguageUpdate, 
+        /** The flags have been updated */  
+        EAknEdwinStateFlagsUpdate,
+        /** The edwin state needs to be sync'ed */
+        EAknSyncEdwinState,
+        /** Cursor position has changed in editor */
+        EAknCursorPositionChanged,
+        /** VKB/HW activation request */
+        EAknActivatePenInputRequest,
+        /** Prompt Text has changed */
+        EAknEdwinStatePromptUpdate
+        };
+public:
+	/**
+    * Handles an state event from a observed control.
+    * Pure virtual function that is called when a control, for which this
+    * control is the observer, calls @c ReportAknedstateEventL().
+    * It should be implemented by the observer control and should handle all
+    * state events sent by controls it observed. 
+    * @param aAknEdwinState The control that sent the event.
+    * @param aEventType The event type defined in @c EAknEdwinStateEvent.
+    */
+	virtual void HandleAknEdwinStateEventL(CAknEdwinState* aAknEdwinState,
+		EAknEdwinStateEvent aEventType) = 0;
+	};
+
+#endif