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diff --git a/include/editeng/AccessibleSelectionBase.hxx b/include/editeng/AccessibleSelectionBase.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 .
+ */
+
+#ifndef INCLUDED_EDITENG_ACCESSIBLESELECTIONBASE_HXX
+#define INCLUDED_EDITENG_ACCESSIBLESELECTIONBASE_HXX
+
+#include <comphelper/accessibleselectionhelper.hxx>
+#include <editeng/editengdllapi.h>
+
+namespace accessibility
+{
+/** @descr
+        This base class provides a base implementation of the
+        XAccessibleSelection interface.
+        The following methods have to be implemented if this
+        class is used:
+
+        <method>implGetMutex</method>,
+        <method>implGetAccessibleContext</method>,
+        <method>implIsSelected</method>,
+        <method>implSelect</method>,
+*/
+    class EDITENG_DLLPUBLIC AccessibleSelectionBase : public ::comphelper::OCommonAccessibleSelection,
+                                    public css::accessibility::XAccessibleSelection
+    {
+    protected:
+
+        virtual ::osl::Mutex&   implGetMutex() = 0;
+
+    public:
+
+        // XAccessibleSelection - default implementations
+        virtual void SAL_CALL selectAccessibleChild( sal_Int64 nChildIndex ) override;
+        virtual sal_Bool SAL_CALL isAccessibleChildSelected( sal_Int64 nChildIndex ) override;
+        virtual void SAL_CALL clearAccessibleSelection(  ) override;
+        virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+        virtual sal_Int64 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+        virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex ) override;
+        virtual void SAL_CALL deselectAccessibleChild( sal_Int64 nSelectedChildIndex ) override;
+
+    public:
+
+                                AccessibleSelectionBase();
+        virtual                 ~AccessibleSelectionBase();
+    };
+
+}
+
+#endif // INCLUDED_EDITENG_ACCESSIBLESELECTIONBASE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */