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diff --git a/sd/source/ui/inc/framework/ViewShellWrapper.hxx b/sd/source/ui/inc/framework/ViewShellWrapper.hxx
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+++ b/sd/source/ui/inc/framework/ViewShellWrapper.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 <com/sun/star/drawing/framework/XView.hpp>
+#include <com/sun/star/drawing/framework/XRelocatableResource.hpp>
+#include <com/sun/star/view/XSelectionSupplier.hpp>
+#include <com/sun/star/awt/XWindowListener.hpp>
+#include <com/sun/star/lang/XUnoTunnel.hpp>
+#include <comphelper/compbase.hxx>
+
+#include <memory>
+
+namespace sd { class ViewShell; }
+namespace sd::slidesorter { class SlideSorterViewShell; }
+namespace com::sun::star::awt { class XWindow; }
+
+namespace sd::framework {
+
+typedef comphelper::WeakComponentImplHelper    <   css::lang::XUnoTunnel
+                                            ,   css::awt::XWindowListener
+                                            ,   css::view::XSelectionSupplier
+                                            ,   css::drawing::framework::XRelocatableResource
+                                            ,   css::drawing::framework::XView
+                                            >   ViewShellWrapperInterfaceBase;
+
+/** This class wraps ViewShell objects and makes them look like an XView.
+    Most importantly it provides a tunnel to the ViewShell implementation.
+    Then it forwards size changes of the pane window to the view shell.
+*/
+class ViewShellWrapper final : public ViewShellWrapperInterfaceBase
+{
+public:
+    /** Create a new ViewShellWrapper object that wraps the given ViewShell
+        object.
+        @param pViewShell
+            The ViewShell object to wrap.
+        @param rsViewURL
+            URL of the view type of the wrapped view shell.
+        @param rxWindow
+            This window reference is optional.  When a valid reference is
+            given then size changes of the referenced window are forwarded
+            to the ViewShell object.
+    */
+    ViewShellWrapper (
+        const ::std::shared_ptr<ViewShell>& pViewShell,
+        const css::uno::Reference<css::drawing::framework::XResourceId>& rxViewId,
+        const css::uno::Reference<css::awt::XWindow>& rxWindow);
+    virtual ~ViewShellWrapper() override;
+
+    virtual void disposing(std::unique_lock<std::mutex>&) override;
+    virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
+
+    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId();
+
+    /** This method is typically used together with the XUnoTunnel interface
+        to obtain a pointer to the wrapped ViewShell object for a given
+        XView object.
+    */
+    const ::std::shared_ptr<ViewShell>& GetViewShell() const { return mpViewShell;}
+
+    // XUnoTunnel
+
+    virtual sal_Int64 SAL_CALL getSomething (const css::uno::Sequence<sal_Int8>& rId) override;
+
+    // XResource
+
+    virtual css::uno::Reference<css::drawing::framework::XResourceId>
+        SAL_CALL getResourceId() override;
+
+    virtual sal_Bool SAL_CALL isAnchorOnly() override;
+
+    // XSelectionSupplier
+
+    virtual sal_Bool SAL_CALL select( const css::uno::Any& aSelection ) override;
+    virtual css::uno::Any SAL_CALL getSelection() override;
+    virtual void SAL_CALL addSelectionChangeListener( const css::uno::Reference< css::view::XSelectionChangeListener >& xListener ) override;
+    virtual void SAL_CALL removeSelectionChangeListener( const css::uno::Reference< css::view::XSelectionChangeListener >& xListener ) override;
+
+    // XRelocatableResource
+
+    virtual sal_Bool SAL_CALL relocateToAnchor (
+        const css::uno::Reference<
+            css::drawing::framework::XResource>& xResource) override;
+
+    // XWindowListener
+
+    virtual void SAL_CALL windowResized(
+        const css::awt::WindowEvent& rEvent) override;
+
+    virtual void SAL_CALL windowMoved(
+        const css::awt::WindowEvent& rEvent) override;
+
+    virtual void SAL_CALL windowShown(
+        const css::lang::EventObject& rEvent) override;
+
+    virtual void SAL_CALL windowHidden(
+        const css::lang::EventObject& rEvent) override;
+
+    // XEventListener
+
+    virtual void SAL_CALL disposing(
+        const css::lang::EventObject& rEvent) override;
+
+private:
+    ::std::shared_ptr< ViewShell >                                      mpViewShell;
+    ::std::shared_ptr< ::sd::slidesorter::SlideSorterViewShell >        mpSlideSorterViewShell;
+    const css::uno::Reference< css::drawing::framework::XResourceId >   mxViewId;
+    css::uno::Reference<css::awt::XWindow >                             mxWindow;
+};
+
+} // end of namespace sd::framework
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */