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diff --git a/sw/inc/GrammarContact.hxx b/sw/inc/GrammarContact.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 <SwGrammarMarkUp.hxx>
+#include <svl/listener.hxx>
+#include <vcl/timer.hxx>
+
+struct SwPosition;
+class SwTextNode;
+
+namespace sw
+{
+/**
+ * This class is responsible for the delayed display of grammar checks when a paragraph is edited
+ * It's a client of the paragraph the cursor points to.
+ * If the cursor position changes, updateCursorPosition has to be called
+ * If the grammar checker wants to set a grammar marker at a paragraph, he has to request
+ * the grammar list from this class. If the requested paragraph is not edited, it returns
+ * the normal grammar list. But if the paragraph is the active one, a proxy list will be returned and
+ * all changes are set in this proxy list. If the cursor leaves the paragraph the proxy list
+ * will replace the old list. If the grammar checker has completed the paragraph ('setChecked')
+ * then a timer is setup which replaces the old list as well.
+ */
+class GrammarContact final : public SvtListener
+{
+    Timer m_aTimer;
+    std::unique_ptr<SwGrammarMarkUp> m_pProxyList;
+    bool m_isFinished;
+    SwTextNode* m_pTextNode;
+    DECL_LINK(TimerRepaint, Timer*, void);
+
+public:
+    GrammarContact();
+    ~GrammarContact() { m_aTimer.Stop(); }
+
+    /** Update cursor position reacts to a change of the current input cursor
+        As long as the cursor in inside a paragraph, the grammar checking does
+        not show new grammar faults. When the cursor leaves the paragraph, these
+        faults are shown.
+    @returns void
+    */
+    void updateCursorPosition(const SwPosition& rNewPos);
+
+    /** getGrammarCheck checks if the given text node is blocked by the current cursor
+        if not, the normal markup list is returned
+        if blocked, it will return a markup list "proxy"
+    @returns a markup list (grammar) for the given SwTextNode
+    */
+    SwGrammarMarkUp* getGrammarCheck(SwTextNode& rTextNode, bool bCreate);
+
+    /** finishGrammarCheck() has to be called if a grammar checking has been completed
+        for a text node. If this text node has not been hidden by the current proxy list
+        it will be repainted. Otherwise the proxy list replaces the old list and the
+        repaint will be triggered by a timer
+    @returns void
+    */
+    void finishGrammarCheck(SwTextNode& rTextNode);
+
+    void CheckBroadcaster();
+};
+
+/* Helper functions */
+
+/** getGrammarContact() delivers the grammar contact of the document (for a given textnode)
+@returns grammar contact
+*/
+GrammarContact* getGrammarContactFor(const SwTextNode&);
+
+/** finishGrammarCheck() calls the same function of the grammar contact of the document (for a given textnode)
+@returns void
+*/
+void finishGrammarCheckFor(SwTextNode&);
+
+} // end sw
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */