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diff --git a/forms/source/richtext/richtextunowrapper.hxx b/forms/source/richtext/richtextunowrapper.hxx
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+++ b/forms/source/richtext/richtextunowrapper.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_FORMS_SOURCE_RICHTEXT_RICHTEXTUNOWRAPPER_HXX
+#define INCLUDED_FORMS_SOURCE_RICHTEXT_RICHTEXTUNOWRAPPER_HXX
+
+#include <memory>
+#include <editeng/unotext.hxx>
+#include <editeng/unoedsrc.hxx>
+
+
+namespace frm
+{
+
+    class IEngineTextChangeListener
+    {
+    public:
+        virtual void potentialTextChange( ) = 0;
+
+    protected:
+        ~IEngineTextChangeListener() {}
+    };
+
+    class ORichTextUnoWrapper : public SvxUnoText
+    {
+    public:
+        ORichTextUnoWrapper( EditEngine& _rEngine, IEngineTextChangeListener* _pTextChangeListener );
+
+    protected:
+        virtual ~ORichTextUnoWrapper() throw() override;
+
+
+    private:
+        ORichTextUnoWrapper( const ORichTextUnoWrapper& ) = delete;
+        ORichTextUnoWrapper& operator=( const ORichTextUnoWrapper& ) = delete;
+    };
+
+    class RichTextEditSource : public SvxEditSource
+    {
+    private:
+        EditEngine&                 m_rEngine;
+        std::unique_ptr<SvxTextForwarder>
+                                    m_pTextForwarder;
+        IEngineTextChangeListener*  m_pTextChangeListener;
+
+    public:
+        RichTextEditSource( EditEngine& _rEngine, IEngineTextChangeListener* _pTextChangeListener );
+
+        // SvxEditSource
+        virtual std::unique_ptr<SvxEditSource> Clone() const override;
+        virtual SvxTextForwarder*   GetTextForwarder() override;
+        virtual void                UpdateData() override;
+
+    protected:
+        virtual ~RichTextEditSource() override;
+
+    private:
+        RichTextEditSource( const RichTextEditSource& _rSource ) = delete;
+        RichTextEditSource& operator=( const RichTextEditSource& ) = delete;
+    };
+
+
+} // namespace frm
+
+
+#endif // INCLUDED_FORMS_SOURCE_RICHTEXT_RICHTEXTUNOWRAPPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */