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diff --git a/accessibility/inc/extended/accessiblelistbox.hxx b/accessibility/inc/extended/accessiblelistbox.hxx
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+++ b/accessibility/inc/extended/accessiblelistbox.hxx
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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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
+#include <cppuhelper/implbase2.hxx>
+#include <vcl/vclevent.hxx>
+#include <toolkit/awt/vclxaccessiblecomponent.hxx>
+
+#include <unordered_map>
+
+// class AccessibleListBox -----------------------------------------------
+
+class SvTreeListBox;
+class SvTreeListEntry;
+
+namespace accessibility
+{
+    class AccessibleListBoxEntry;
+
+    /** the class OAccessibleListBoxEntry represents the base class for an accessible object of a listbox entry
+    */
+    class AccessibleListBox :
+        public cppu::ImplHelper2<
+            css::accessibility::XAccessible,
+            css::accessibility::XAccessibleSelection>,
+        public VCLXAccessibleComponent
+    {
+
+        css::uno::Reference< css::accessibility::XAccessible > m_xParent;
+        // OComponentHelper overridables
+        /** this function is called upon disposing the component */
+        virtual void SAL_CALL   disposing() override;
+
+    protected:
+        // VCLXAccessibleComponent
+        virtual void    ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent ) override;
+        virtual void    ProcessWindowChildEvent( const VclWindowEvent& rVclWindowEvent ) override;
+        virtual void    FillAccessibleStateSet( utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    private:
+        VclPtr< SvTreeListBox > getListBox() const;
+
+        void            RemoveChildEntries(SvTreeListEntry*);
+
+        sal_Int32 GetRoleType() const;
+
+    public:
+        /** OAccessibleBase needs a valid view
+            @param  _rListBox
+                is the box for which we implement an accessible object
+            @param  _xParent
+                is our parent accessible object
+        */
+        AccessibleListBox( SvTreeListBox const & _rListBox,
+                           const css::uno::Reference< css::accessibility::XAccessible >& _xParent );
+
+        virtual ~AccessibleListBox() override;
+
+        rtl::Reference<AccessibleListBoxEntry> implGetAccessible(SvTreeListEntry & rEntry);
+
+        // XTypeProvider
+        DECLARE_XTYPEPROVIDER()
+
+        // XInterface
+        DECLARE_XINTERFACE()
+
+        // XServiceInfo
+        virtual OUString SAL_CALL getImplementationName() override;
+        virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+        // XAccessible
+        virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) override;
+
+        // XAccessibleContext
+        virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) override;
+        virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) override;
+        virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) override;
+        virtual sal_Int16 SAL_CALL getAccessibleRole(  ) override;
+        virtual OUString SAL_CALL getAccessibleDescription(  ) override;
+        virtual OUString SAL_CALL getAccessibleName(  ) override;
+
+        // XAccessibleSelection
+        void SAL_CALL selectAccessibleChild( sal_Int32 nChildIndex ) override;
+        sal_Bool SAL_CALL isAccessibleChildSelected( sal_Int32 nChildIndex ) override;
+        void SAL_CALL clearAccessibleSelection(  ) override;
+        void SAL_CALL selectAllAccessibleChildren(  ) override;
+        sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+        css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex ) override;
+        void SAL_CALL deselectAccessibleChild( sal_Int32 nSelectedChildIndex ) override;
+
+    private:
+
+        typedef std::unordered_map<SvTreeListEntry*, rtl::Reference<AccessibleListBoxEntry>> MAP_ENTRY;
+        MAP_ENTRY m_mapEntry;
+
+        css::uno::Reference< css::accessibility::XAccessible > m_xFocusedChild;
+
+        accessibility::AccessibleListBoxEntry* GetCurEventEntry( const VclWindowEvent& rVclWindowEvent );
+
+    };
+
+
+}// namespace accessibility
+
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */