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diff --git a/include/svx/sidebar/SelectionChangeHandler.hxx b/include/svx/sidebar/SelectionChangeHandler.hxx
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+++ b/include/svx/sidebar/SelectionChangeHandler.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_SVX_SIDEBAR_SELECTIONCHANGEHANDLER_HXX
+#define INCLUDED_SVX_SIDEBAR_SELECTIONCHANGEHANDLER_HXX
+
+#include <svx/svxdllapi.h>
+#include <vcl/EnumContext.hxx>
+#include <com/sun/star/frame/XController.hpp>
+#include <com/sun/star/view/XSelectionChangeListener.hpp>
+
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+
+#include <functional>
+
+class SdrMarkView;
+
+
+namespace svx::sidebar {
+
+typedef cppu::WeakComponentImplHelper<
+    css::view::XSelectionChangeListener
+    > SelectionChangeHandlerInterfaceBase;
+
+class SVX_DLLPUBLIC SelectionChangeHandler final
+    : private ::cppu::BaseMutex,
+      public SelectionChangeHandlerInterfaceBase
+{
+public:
+    SelectionChangeHandler (
+        const std::function<OUString ()>& rSelectionChangeCallback,
+        const css::uno::Reference<css::frame::XController>& rxController,
+        const vcl::EnumContext::Context eDefaultContext);
+    virtual ~SelectionChangeHandler() override;
+
+    virtual void SAL_CALL selectionChanged (const css::lang::EventObject& rEvent) override;
+
+    virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent) override;
+
+    virtual void SAL_CALL disposing() override;
+
+    void Connect();
+    void Disconnect();
+
+private:
+    SelectionChangeHandler(const SelectionChangeHandler&) = delete;
+    SelectionChangeHandler& operator=(const SelectionChangeHandler&) = delete;
+
+    const std::function<OUString ()> maSelectionChangeCallback;
+    css::uno::Reference<css::frame::XController> mxController;
+    const vcl::EnumContext::Context meDefaultContext;
+    bool mbIsConnected;
+};
+
+
+} // end of namespace svx::sidebar
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */