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diff --git a/chart2/source/controller/main/ElementSelector.hxx b/chart2/source/controller/main/ElementSelector.hxx
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+++ b/chart2/source/controller/main/ElementSelector.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_CHART2_SOURCE_CONTROLLER_MAIN_ELEMENTSELECTOR_HXX
+#define INCLUDED_CHART2_SOURCE_CONTROLLER_MAIN_ELEMENTSELECTOR_HXX
+
+#include <ObjectIdentifier.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/frame/XController.hpp>
+#include <cppuhelper/implbase1.hxx>
+#include <svtools/toolboxcontroller.hxx>
+
+#include <vcl/InterimItemWindow.hxx>
+#include <cppuhelper/weakref.hxx>
+
+namespace chart
+{
+
+struct ListBoxEntryData
+{
+    OUString UIName;
+    ObjectIdentifier OID;
+    sal_Int32 nHierarchyDepth;
+
+    ListBoxEntryData() : nHierarchyDepth(0)
+    {
+    }
+};
+
+class SelectorListBox final : public InterimItemWindow
+{
+public:
+    SelectorListBox(vcl::Window* pParent);
+    virtual void dispose() override;
+    virtual ~SelectorListBox() override;
+
+    virtual void GetFocus() override;
+
+    void ReleaseFocus_Impl();
+
+    void SetChartController( const css::uno::Reference< css::frame::XController >& xChartController );
+    void UpdateChartElementsListAndSelection();
+
+private:
+    css::uno::WeakReference<css::frame::XController> m_xChartController;
+    std::unique_ptr<weld::ComboBox> m_xWidget;
+
+    std::vector<ListBoxEntryData> m_aEntries;
+
+    bool m_bReleaseFocus;
+
+    DECL_LINK(KeyInputHdl, const KeyEvent&, bool);
+    DECL_LINK(SelectHdl, weld::ComboBox&, void);
+    DECL_LINK(FocusOutHdl, weld::Widget&, void);
+};
+
+typedef ::cppu::ImplHelper1 < css::lang::XServiceInfo> ElementSelectorToolbarController_BASE;
+
+class ElementSelectorToolbarController : public ::svt::ToolboxController
+                                                , public ElementSelectorToolbarController_BASE
+{
+public:
+    explicit ElementSelectorToolbarController();
+    virtual ~ElementSelectorToolbarController() override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XInterface
+     virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) override;
+     virtual void SAL_CALL acquire() throw () override;
+     virtual void SAL_CALL release() throw () override;
+
+     // XStatusListener
+     virtual void SAL_CALL statusChanged( const css::frame::FeatureStateEvent& Event ) override;
+     // XToolbarController
+     virtual css::uno::Reference< css::awt::XWindow > SAL_CALL createItemWindow( const css::uno::Reference< css::awt::XWindow >& Parent ) override;
+
+private:
+    VclPtr< SelectorListBox > m_apSelectorListBox;
+};
+
+} //namespace chart
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */