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diff --git a/include/comphelper/propstate.hxx b/include/comphelper/propstate.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_PROPSTATE_HXX
+#define INCLUDED_COMPHELPER_PROPSTATE_HXX
+
+#include <config_options.h>
+#include <com/sun/star/beans/XPropertyState.hpp>
+#include <com/sun/star/uno/Sequence.h>
+
+
+#include <cppuhelper/propshlp.hxx>
+#include <cppuhelper/weak.hxx>
+#include <comphelper/uno3.hxx>
+#include <comphelper/broadcasthelper.hxx>
+#include <com/sun/star/lang/XTypeProvider.hpp>
+#include <comphelper/comphelperdllapi.h>
+
+
+//= property helper classes
+
+
+namespace comphelper
+{
+
+
+    //= OPropertyStateHelper
+
+    /// helper class for implementing property states
+    class UNLESS_MERGELIBS(COMPHELPER_DLLPUBLIC) OPropertyStateHelper :public ::cppu::OPropertySetHelper2
+                                                    ,public css::beans::XPropertyState
+    {
+    public:
+        OPropertyStateHelper(::cppu::OBroadcastHelper& rBHlp):OPropertySetHelper2(rBHlp) { }
+        OPropertyStateHelper(::cppu::OBroadcastHelper& rBHlp,
+                             ::cppu::IEventNotificationHook *i_pFireEvents);
+
+        virtual css::uno::Any SAL_CALL queryInterface(const css::uno::Type& aType) override;
+
+    // XPropertyState
+        virtual css::beans::PropertyState SAL_CALL
+            getPropertyState(const OUString& PropertyName) override;
+        virtual css::uno::Sequence< css::beans::PropertyState> SAL_CALL
+            getPropertyStates(const css::uno::Sequence< OUString >& aPropertyName) override;
+        virtual void SAL_CALL
+            setPropertyToDefault(const OUString& PropertyName) override;
+        virtual css::uno::Any SAL_CALL
+            getPropertyDefault(const OUString& aPropertyName) override;
+
+    // access via handle
+        virtual css::beans::PropertyState  getPropertyStateByHandle(sal_Int32 nHandle);
+        virtual void                                    setPropertyToDefaultByHandle(sal_Int32 nHandle);
+        virtual css::uno::Any              getPropertyDefaultByHandle(sal_Int32 nHandle) const;
+
+    protected:
+        virtual ~OPropertyStateHelper() override;
+
+        void firePropertyChange(sal_Int32 nHandle, const css::uno::Any& aNewValue, const css::uno::Any& aOldValue);
+
+        static css::uno::Sequence<css::uno::Type> getTypes();
+    };
+
+
+    //= OPropertyStateHelper
+
+    class UNLESS_MERGELIBS(COMPHELPER_DLLPUBLIC) OStatefulPropertySet  :public ::cppu::OWeakObject
+                                ,public css::lang::XTypeProvider
+                                ,public OMutexAndBroadcastHelper    // order matters: before OPropertyStateHelper/OPropertySetHelper
+                                ,public OPropertyStateHelper
+    {
+    protected:
+        OStatefulPropertySet();
+        virtual ~OStatefulPropertySet() override;
+
+    protected:
+        DECLARE_XINTERFACE()
+        DECLARE_XTYPEPROVIDER()
+    };
+
+
+}   // namespace comphelper
+
+
+#endif // INCLUDED_COMPHELPER_PROPSTATE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */