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diff --git a/include/svtools/toolbarmenu.hxx b/include/svtools/toolbarmenu.hxx
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+++ b/include/svtools/toolbarmenu.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_SVTOOLS_TOOLBARMENU_HXX
+#define INCLUDED_SVTOOLS_TOOLBARMENU_HXX
+
+#include <config_options.h>
+#include <svtools/svtdllapi.h>
+
+#include <memory>
+
+#include <rtl/ref.hxx>
+#include <vcl/dockwin.hxx>
+#include <vcl/weld.hxx>
+
+namespace com :: sun :: star :: frame { class XFrame; }
+namespace com :: sun :: star :: frame { struct FeatureStateEvent; }
+namespace svt { class FrameStatusListener; }
+
+namespace svtools {
+
+class SVT_DLLPUBLIC ToolbarPopupBase
+{
+    friend class ToolbarPopupStatusListener;
+public:
+    ToolbarPopupBase(const css::uno::Reference<css::frame::XFrame>& rFrame);
+    virtual ~ToolbarPopupBase();
+
+protected:
+    void AddStatusListener( const OUString& rCommandURL );
+
+    // Forwarded from XStatusListener (subclasses must override this one to get the status updates):
+    /// @throws css::uno::RuntimeException
+    virtual void statusChanged(const css::frame::FeatureStateEvent& Event );
+
+    css::uno::Reference<css::frame::XFrame>  mxFrame;
+    rtl::Reference<svt::FrameStatusListener> mxStatusListener;
+};
+
+class UNLESS_MERGELIBS(SVT_DLLPUBLIC) ToolbarPopup : public DockingWindow, public ToolbarPopupBase
+{
+public:
+    ToolbarPopup(const css::uno::Reference<css::frame::XFrame>& rFrame,
+                 vcl::Window* pParentWindow,
+                 const OString& rID, const OUString& rUIXMLDescription );
+    virtual ~ToolbarPopup() override;
+    virtual void dispose() override;
+
+protected:
+    void EndPopupMode();
+
+private:
+    void init();
+};
+
+} // namespace svtools
+
+class SVT_DLLPUBLIC WeldToolbarPopup : public svtools::ToolbarPopupBase
+{
+private:
+    DECL_LINK(FocusHdl, weld::Widget&, void);
+
+protected:
+    std::unique_ptr<weld::Builder> m_xBuilder;
+    std::unique_ptr<weld::Container> m_xTopLevel;
+    std::unique_ptr<weld::Container> m_xContainer;
+
+public:
+    WeldToolbarPopup(const css::uno::Reference<css::frame::XFrame>& rFrame,
+                     weld::Widget* pParent, const OUString& rUIFile, const OString& rId);
+    virtual ~WeldToolbarPopup() override;
+    weld::Container* getTopLevel() { return m_xTopLevel.get(); }
+    weld::Container* getContainer() { return m_xContainer.get(); }
+
+    virtual void GrabFocus() = 0;
+};
+
+// we want to create WeldToolbarPopup on-demand when a toolbar dropdown is
+// clicked, but the widget to be shown must exist before the dropdown
+// is activated, so ToolbarPopupContainer is that widget and the
+// contents of the on-demand created WeldToolbarPopup is placed
+// within the ToolbarPopupContainer
+class SVT_DLLPUBLIC ToolbarPopupContainer final
+{
+private:
+    DECL_LINK(FocusHdl, weld::Widget&, void);
+
+    std::unique_ptr<weld::Builder> m_xBuilder;
+    std::unique_ptr<weld::Container> m_xTopLevel;
+    std::unique_ptr<weld::Container> m_xContainer;
+    std::unique_ptr<WeldToolbarPopup> m_xPopup;
+public:
+    ToolbarPopupContainer(weld::Widget* pParent);
+    ~ToolbarPopupContainer();
+    weld::Container* getTopLevel() { return m_xTopLevel.get(); }
+    weld::Container* getContainer() { return m_xContainer.get(); }
+
+    void setPopover(std::unique_ptr<WeldToolbarPopup> xPopup);
+    WeldToolbarPopup* getPopover() const { return m_xPopup.get(); }
+    void unsetPopover();
+};
+
+class SVT_DLLPUBLIC InterimToolbarPopup final : public svtools::ToolbarPopup
+{
+private:
+    VclPtr<vcl::Window> m_xBox;
+    std::unique_ptr<weld::Builder> m_xBuilder;
+    std::unique_ptr<weld::Container> m_xContainer;
+    std::unique_ptr<WeldToolbarPopup> m_xPopup;
+public:
+    InterimToolbarPopup(const css::uno::Reference<css::frame::XFrame>& rFrame, vcl::Window* pParent,
+                        std::unique_ptr<WeldToolbarPopup> xPopup, bool bTearable = false);
+    weld::Container* getContainer() { return m_xContainer.get(); }
+    virtual void dispose() override;
+    virtual ~InterimToolbarPopup() override;
+
+    virtual void GetFocus() override;
+
+    using ToolbarPopup::EndPopupMode;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */