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diff --git a/winaccessibility/inc/AccEventListener.hxx b/winaccessibility/inc/AccEventListener.hxx
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+/**************************************************************
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ *************************************************************/
+
+#ifndef __ACCEVENTLISTENER_HXX
+#define __ACCEVENTLISTENER_HXX
+
+#include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#include <cppuhelper/weak.hxx>
+#include <vos/mutex.hxx>
+
+class AccObjectManagerAgent;
+using namespace ::com::sun::star::uno;
+/**
+ * AccEventListener is the general event listener for all controls. It defines the
+ * procedure of all the event handling and provides the basic support for some simple
+ * methods.
+ */
+class AccEventListener:
+            public com::sun::star::accessibility::XAccessibleEventListener,
+            public ::cppu::OWeakObject
+{
+private:
+    oslInterlockedCount m_refcount;
+protected:
+    //accessible owner's pointer
+    com::sun::star::accessibility::XAccessible* pAccessible;
+    //agent pointer for objects' manager
+    AccObjectManagerAgent* pAgent;
+    //disposed state indicator
+    bool  m_isDisposed;
+    mutable ::vos::OMutex aRemoveMutex;
+public:
+    AccEventListener( com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent);
+    virtual ~AccEventListener();
+
+    //AccessibleEventListener
+    virtual void SAL_CALL notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException);
+
+    //for name changed event
+    virtual void SAL_CALL handleNameChangedEvent(Any name);
+
+    //for description changed event
+    virtual void SAL_CALL handleDescriptionChangedEvent(Any desc);
+
+    //for state changed event
+    virtual void SAL_CALL handleStateChangedEvent (Any oldValue, Any newValue);
+    virtual void SAL_CALL setComponentState(short state, bool enable);
+    virtual void SAL_CALL fireStatePropertyChange(short state, bool set
+                                                     );
+    virtual void SAL_CALL fireStateFocusdChange(bool enable);
+
+    //for bound rect changed event
+    virtual void SAL_CALL handleBoundrectChangedEvent();
+
+    //for visible data changed event
+    virtual void SAL_CALL handleVisibleDataChangedEvent();
+
+    //for interface
+    virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException);
+    virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type& aType ) throw (::com::sun::star::uno::RuntimeException);
+    virtual void SAL_CALL acquire() throw ();
+    virtual void SAL_CALL release() throw ();
+    //get the accessible role of pAccessible
+    virtual short SAL_CALL getRole();
+    //get the accessible parent's role
+    virtual short SAL_CALL getParentRole();
+public:
+    void removeMeFromBroadcaster();
+};
+
+#endif