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diff --git a/chart2/source/controller/main/CommandDispatch.hxx b/chart2/source/controller/main/CommandDispatch.hxx
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+++ b/chart2/source/controller/main/CommandDispatch.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 <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <comphelper/interfacecontainer3.hxx>
+#include <com/sun/star/frame/XDispatch.hpp>
+#include <com/sun/star/util/XModifyListener.hpp>
+
+#include <map>
+#include <memory>
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::util { class XURLTransformer; }
+
+namespace chart
+{
+
+namespace impl
+{
+typedef ::cppu::WeakComponentImplHelper<
+        css::frame::XDispatch,
+        css::util::XModifyListener >
+    CommandDispatch_Base;
+}
+
+/** This is the base class for an XDispatch.
+ */
+class CommandDispatch :
+        public cppu::BaseMutex,
+        public impl::CommandDispatch_Base
+{
+public:
+    explicit CommandDispatch( const css::uno::Reference< css::uno::XComponentContext > & xContext );
+    virtual ~CommandDispatch() override;
+
+    // late initialisation, especially for adding as listener
+    virtual void initialize();
+
+protected:
+    /** sends a status event for a specific command to all registered listeners
+        or only the one given when set.
+
+        This method should be overridden.  The implementation should call
+        fireStatusEventForURL and pass the xSingleListener argument to this
+        method unchanged.
+
+        @param rURL
+            If empty, all available status events must be fired, otherwise only
+            the one for the given command.
+
+        @param xSingleListener
+            If set, the event is only sent to this listener rather than to all
+            registered ones.  Whenever a listener adds itself, this method is
+            called with this parameter set to give an initial state.
+     */
+    virtual void fireStatusEvent(
+        const OUString & rURL,
+        const css::uno::Reference< css::frame::XStatusListener > & xSingleListener ) = 0;
+
+    /** calls fireStatusEvent( OUString, xSingleListener )
+     */
+    void fireAllStatusEvents(
+        const css::uno::Reference< css::frame::XStatusListener > & xSingleListener );
+
+    /** sends a status event for a specific command to all registered listeners
+        or only the one given when set.
+
+        @param xSingleListener
+            If set, the event is only sent to this listener rather than to all
+            registered ones.  Whenever a listener adds itself, this method is
+            called with this parameter set to give an initial state.
+     */
+    void fireStatusEventForURL(
+        const OUString & rURL,
+        const css::uno::Any & rState,
+        bool bEnabled,
+        const css::uno::Reference< css::frame::XStatusListener > & xSingleListener );
+
+    // ____ XDispatch ____
+    virtual void SAL_CALL dispatch(
+        const css::util::URL& URL,
+        const css::uno::Sequence< css::beans::PropertyValue >& Arguments ) override;
+    virtual void SAL_CALL addStatusListener(
+        const css::uno::Reference< css::frame::XStatusListener >& Control,
+        const css::util::URL& URL ) override;
+    virtual void SAL_CALL removeStatusListener(
+        const css::uno::Reference< css::frame::XStatusListener >& Control,
+        const css::util::URL& URL ) override;
+
+    // ____ WeakComponentImplHelperBase ____
+    /// is called when this is disposed
+    virtual void SAL_CALL disposing() override;
+
+    // ____ XModifyListener ____
+    virtual void SAL_CALL modified(
+        const css::lang::EventObject& aEvent ) override;
+
+    // ____ XEventListener (base of XModifyListener) ____
+    virtual void SAL_CALL disposing(
+        const css::lang::EventObject& Source ) override;
+
+private:
+    css::uno::Reference< css::uno::XComponentContext > m_xContext;
+    css::uno::Reference< css::util::XURLTransformer >  m_xURLTransformer;
+
+    typedef std::map< OUString, std::unique_ptr<::comphelper::OInterfaceContainerHelper3<css::frame::XStatusListener>> >
+        tListenerMap;
+
+    tListenerMap m_aListeners;
+
+};
+
+} //  namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */