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diff --git a/sw/source/core/access/accdoc.hxx b/sw/source/core/access/accdoc.hxx
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+++ b/sw/source/core/access/accdoc.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 "acccontext.hxx"
+#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
+#include <com/sun/star/accessibility/XAccessibleExtendedAttributes.hpp>
+#include "accselectionhelper.hxx"
+
+// base class for SwAccessibleDocument (in this same header file) and
+// SwAccessiblePreview
+class SwAccessibleDocumentBase : public SwAccessibleContext
+{
+    css::uno::Reference< css::accessibility::XAccessible> mxParent;
+
+    VclPtr<vcl::Window> mpChildWin; // protected by solar mutex
+
+    using SwAccessibleFrame::SetVisArea;
+
+protected:
+    virtual ~SwAccessibleDocumentBase() override;
+
+public:
+    SwAccessibleDocumentBase(std::shared_ptr<SwAccessibleMap> const& pInitMap);
+
+    void SetVisArea();
+
+    void AddChild( vcl::Window *pWin, bool bFireEvent = true );
+    void RemoveChild( vcl::Window *pWin );
+
+    // XAccessibleContext
+
+    // Return the number of currently visible children.
+    virtual sal_Int32 SAL_CALL getAccessibleChildCount() override;
+
+    // Return the specified child or NULL if index is invalid.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleChild (sal_Int32 nIndex) override;
+
+    // Return a reference to the parent.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleParent() override;
+
+    // Return this objects index among the parents children.
+    virtual sal_Int32 SAL_CALL
+        getAccessibleIndexInParent() override;
+
+    // Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    virtual OUString SAL_CALL getAccessibleName() override;
+
+    // XAccessibleComponent
+    virtual sal_Bool SAL_CALL containsPoint(
+            const css::awt::Point& aPoint ) override;
+
+    virtual css::uno::Reference<
+        css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint(
+                const css::awt::Point& aPoint ) override;
+
+    virtual css::awt::Rectangle SAL_CALL getBounds() override;
+
+    virtual css::awt::Point SAL_CALL getLocation() override;
+
+    virtual css::awt::Point SAL_CALL getLocationOnScreen() override;
+
+    virtual css::awt::Size SAL_CALL getSize() override;
+};
+
+/**
+ * access to an accessible Writer document
+ */
+class SwAccessibleDocument : public SwAccessibleDocumentBase,
+                             public css::accessibility::XAccessibleSelection,
+                             public css::accessibility::XAccessibleExtendedAttributes
+{
+    // Implementation for XAccessibleSelection interface
+    SwAccessibleSelectionHelper maSelectionHelper;
+
+protected:
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets MULTISELECTABLE(1)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    virtual ~SwAccessibleDocument() override;
+
+public:
+    SwAccessibleDocument(std::shared_ptr<SwAccessibleMap> const& pInitMap);
+
+    DECL_LINK( WindowChildEventListener, VclWindowEvent&, void );
+
+    // XServiceInfo
+
+    // Returns an identifier for the implementation of this object.
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    // Return whether the specified service is supported by this class.
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    // Returns a list of all supported services.  In this case that is just
+    // the AccessibleContext service.
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XInterface
+
+    // XInterface is inherited through SwAccessibleContext and
+    // XAccessibleSelection. These methods are needed to avoid
+    // ambiguities.
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        const css::uno::Type& aType ) override;
+
+    virtual void SAL_CALL acquire(  ) throw () override
+        { SwAccessibleContext::acquire(); };
+
+    virtual void SAL_CALL release(  ) throw () override
+        { SwAccessibleContext::release(); };
+
+    // XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleSelection
+
+    virtual void SAL_CALL selectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual sal_Bool SAL_CALL isAccessibleChildSelected(
+        sal_Int32 nChildIndex ) override;
+    virtual void SAL_CALL clearAccessibleSelection(  ) override;
+    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    // index has to be treated as global child index.
+    virtual void SAL_CALL deselectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual css::uno::Any SAL_CALL getExtendedAttributes() override;
+
+    // thread safe C++ interface
+
+    // The object is not visible any longer and should be destroyed
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true) override;
+
+    // XAccessibleComponent
+    sal_Int32 SAL_CALL getBackground() override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */