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diff --git a/include/comphelper/interaction.hxx b/include/comphelper/interaction.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_COMPHELPER_INTERACTION_HXX
+#define INCLUDED_COMPHELPER_INTERACTION_HXX
+
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/task/XInteractionApprove.hpp>
+#include <com/sun/star/task/XInteractionDisapprove.hpp>
+#include <com/sun/star/task/XInteractionAbort.hpp>
+#include <com/sun/star/task/XInteractionRetry.hpp>
+#include <com/sun/star/task/XInteractionRequest.hpp>
+#include <comphelper/comphelperdllapi.h>
+#include <vector>
+
+
+namespace comphelper
+{
+
+
+    //= OInteraction
+
+    /** template for instantiating concrete interaction handlers<p/>
+        the template argument must be an interface derived from XInteractionContinuation
+    */
+    template <class INTERACTION>
+    class OInteraction
+            : public ::cppu::WeakImplHelper< INTERACTION >
+    {
+    public:
+        OInteraction() : m_bSelected(false) {}
+
+        /// determines whether or not this handler was selected
+        bool    wasSelected() const { return m_bSelected; }
+
+        // XInteractionContinuation
+        virtual void SAL_CALL select() override;
+    private:
+        bool    m_bSelected : 1;    /// indicates if the select event occurred
+    };
+
+
+    template <class INTERACTION>
+    void SAL_CALL OInteraction< INTERACTION >::select(  )
+    {
+        m_bSelected = true;
+    }
+
+
+    //= OInteractionApprove
+
+    typedef OInteraction< css::task::XInteractionApprove > OInteractionApprove;
+
+
+    //= OInteractionDisapprove
+
+    typedef OInteraction< css::task::XInteractionDisapprove >  OInteractionDisapprove;
+
+
+    //= OInteractionAbort
+
+    typedef OInteraction< css::task::XInteractionAbort >   OInteractionAbort;
+
+
+    //= OInteractionRetry
+
+    typedef OInteraction< css::task::XInteractionRetry >   OInteractionRetry;
+
+
+    //= OInteractionRequest
+
+    typedef ::cppu::WeakImplHelper <   css::task::XInteractionRequest
+                                   >   OInteractionRequest_Base;
+    /** implements an interaction request (com.sun.star.task::XInteractionRequest)<p/>
+        at run time, you can freely add any interaction continuation objects
+    */
+    class COMPHELPER_DLLPUBLIC OInteractionRequest final : public OInteractionRequest_Base
+    {
+        css::uno::Any const
+                    m_aRequest;         /// the request we represent
+        std::vector< css::uno::Reference< css::task::XInteractionContinuation > >
+                    m_aContinuations;   /// all registered continuations
+
+    public:
+        OInteractionRequest(css::uno::Any aRequestDescription);
+        OInteractionRequest(css::uno::Any aRequestDescription,
+            std::vector<css::uno::Reference<css::task::XInteractionContinuation>>&& rContinuations);
+
+        /// add a new continuation
+        void addContinuation(const css::uno::Reference< css::task::XInteractionContinuation >& _rxContinuation);
+
+    // XInteractionRequest
+        virtual css::uno::Any SAL_CALL getRequest(  ) override;
+        virtual css::uno::Sequence< css::uno::Reference< css::task::XInteractionContinuation > > SAL_CALL getContinuations(  ) override;
+    };
+
+}   // namespace comphelper
+
+
+#endif // INCLUDED_COMPHELPER_INTERACTION_HXX
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */