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diff --git a/include/vcl/dndhelp.hxx b/include/vcl/dndhelp.hxx
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+++ b/include/vcl/dndhelp.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_VCL_DNDHELP_HXX
+#define INCLUDED_VCL_DNDHELP_HXX
+
+#include <vcl/dllapi.h>
+#include <cppuhelper/weak.hxx>
+#include <com/sun/star/datatransfer/dnd/XDragGestureListener.hpp>
+#include <com/sun/star/datatransfer/dnd/XDragSourceListener.hpp>
+#include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
+
+namespace com::sun::star::datatransfer::dnd {
+    struct DragGestureEvent;
+    struct DragSourceDragEvent;
+    struct DragSourceDropEvent;
+    struct DragSourceEvent;
+    struct DropTargetDragEvent;
+    struct DropTargetDragEnterEvent;
+    struct DropTargetDropEvent;
+    struct DropTargetEvent;
+}
+
+namespace vcl::unohelper
+{
+
+class VCL_DLLPUBLIC DragAndDropClient
+{
+public:
+    virtual ~DragAndDropClient() COVERITY_NOEXCEPT_FALSE;
+
+    // css::datatransfer::dnd::XDragGestureListener
+    /// @throws css::uno::RuntimeException
+    virtual void dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& dge );
+
+    // css::datatransfer::dnd::XDragSourceListener
+    /// @throws css::uno::RuntimeException
+    virtual void dragDropEnd(const css::datatransfer::dnd::DragSourceDropEvent& dsde );
+
+    // css::datatransfer::dnd::XDropTargetListener
+    /// @throws css::uno::RuntimeException
+    virtual void drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde );
+    /// @throws css::uno::RuntimeException
+    virtual void dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee );
+    /// @throws css::uno::RuntimeException
+    virtual void dragExit( const css::datatransfer::dnd::DropTargetEvent& dte );
+    /// @throws css::uno::RuntimeException
+    virtual void dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde );
+};
+
+class DragAndDropWrapper final :
+                            public css::datatransfer::dnd::XDragGestureListener,
+                            public css::datatransfer::dnd::XDragSourceListener,
+                            public css::datatransfer::dnd::XDropTargetListener,
+                            public ::cppu::OWeakObject
+{
+private:
+    DragAndDropClient* mpClient;
+
+public:
+    VCL_DLLPUBLIC   DragAndDropWrapper( DragAndDropClient* pClient );
+                    virtual ~DragAndDropWrapper() override;
+
+    // css::uno::XInterface
+    css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
+    void          SAL_CALL acquire() noexcept override  { OWeakObject::acquire(); }
+    void          SAL_CALL release() noexcept override  { OWeakObject::release(); }
+
+    // css::lang::XEventListener
+    void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+    // css::datatransfer::dnd::XDragGestureListener
+    void SAL_CALL dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& dge ) override;
+
+    // css::datatransfer::dnd::XDragSourceListener
+    void SAL_CALL dragDropEnd( const css::datatransfer::dnd::DragSourceDropEvent& dsde ) override;
+    void SAL_CALL dragEnter( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
+    void SAL_CALL dragExit( const css::datatransfer::dnd::DragSourceEvent& dse ) override;
+    void SAL_CALL dragOver( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
+    void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
+
+    // css::datatransfer::dnd::XDropTargetListener
+    void SAL_CALL drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) override;
+    void SAL_CALL dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;
+    void SAL_CALL dragExit( const css::datatransfer::dnd::DropTargetEvent& dte ) override;
+    void SAL_CALL dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
+    void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
+};
+
+}  // namespace vcl::unohelper
+
+#endif // INCLUDED_VCL_DNDHELP_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */