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diff --git a/offapi/com/sun/star/embed/XStateChangeListener.idl b/offapi/com/sun/star/embed/XStateChangeListener.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef __com_sun_star_embed_XStateChangeListener_idl__
+#define __com_sun_star_embed_XStateChangeListener_idl__
+
+#include <com/sun/star/lang/XEventListener.idl>
+
+#include <com/sun/star/lang/EventObject.idl>
+
+#include <com/sun/star/embed/WrongStateException.idl>
+
+
+module com {  module sun {  module star {  module embed {
+
+
+/** makes it possible to receive events when an embedded object changes it's
+    state.
+ */
+published interface XStateChangeListener: com::sun::star::lang::XEventListener
+{
+    /** is called just before the object changes state.
+
+        <p>
+        Actually the listener can try to complain about state changing, but
+        it is up to object to decide whether the state change can be
+        prevented. Anyway the possibility to complain must be used very
+        carefully.
+        </p>
+
+        @param aEvent
+            specifies the object that is going to change own state
+
+        @param nOldState
+            specifies the old state of the object
+
+        @param nNewState
+            specifies the new state of the object
+
+        @throws ::com::sun::star::embed::WrongStateException
+            the state change is unexpected by listener
+     */
+    void changingState( [in] com::sun::star::lang::EventObject aEvent,
+                        [in] long nOldState,
+                        [in] long nNewState )
+        raises( ::com::sun::star::embed::WrongStateException );
+
+    /** is called after the object has changed state.
+
+        @param aEvent
+            specifies the object that has changed own state
+
+        @param nOldState
+            specifies the old state of the object
+
+        @param nNewState
+            specifies the new state of the object
+     */
+    void stateChanged( [in] com::sun::star::lang::EventObject aEvent,
+                        [in] long nOldState,
+                        [in] long nNewState );
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */