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diff --git a/vcl/unx/gtk3/a11y/atkwrapper.hxx b/vcl/unx/gtk3/a11y/atkwrapper.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 <sal/config.h>
+
+#include <string_view>
+
+#include <atk/atk.h>
+#include <gtk/gtk.h>
+#include <gtk/gtk-a11y.h>
+#include <com/sun/star/accessibility/XAccessible.hpp>
+
+extern "C" {
+
+namespace com::sun::star::accessibility {
+    class XAccessibleAction;
+    class XAccessibleComponent;
+    class XAccessibleEditableText;
+    class XAccessibleHypertext;
+    class XAccessibleImage;
+    class XAccessibleMultiLineText;
+    class XAccessibleSelection;
+    class XAccessibleTable;
+    class XAccessibleText;
+    class XAccessibleTextMarkup;
+    class XAccessibleTextAttributes;
+    class XAccessibleValue;
+}
+
+struct AtkObjectWrapper
+{
+    GtkWidgetAccessible aParent;
+
+    AtkObject* mpOrig;  //if we're a GtkDrawingArea acting as a custom LibreOffice widget, this is the toolkit default impl
+    AtkObject* mpSysObjChild; //if we're a container for a sysobj, then this is the sysobj native gtk AtkObject
+
+    css::uno::Reference<css::accessibility::XAccessible> mpAccessible;
+    css::uno::Reference<css::accessibility::XAccessibleContext> mpContext;
+    css::uno::Reference<css::accessibility::XAccessibleAction> mpAction;
+    css::uno::Reference<css::accessibility::XAccessibleComponent> mpComponent;
+    css::uno::Reference<css::accessibility::XAccessibleEditableText>
+        mpEditableText;
+    css::uno::Reference<css::accessibility::XAccessibleHypertext> mpHypertext;
+    css::uno::Reference<css::accessibility::XAccessibleImage> mpImage;
+    css::uno::Reference<css::accessibility::XAccessibleMultiLineText>
+        mpMultiLineText;
+    css::uno::Reference<css::accessibility::XAccessibleSelection> mpSelection;
+    css::uno::Reference<css::accessibility::XAccessibleTable> mpTable;
+    css::uno::Reference<css::accessibility::XAccessibleText> mpText;
+    css::uno::Reference<css::accessibility::XAccessibleTextMarkup> mpTextMarkup;
+    css::uno::Reference<css::accessibility::XAccessibleTextAttributes>
+        mpTextAttributes;
+    css::uno::Reference<css::accessibility::XAccessibleValue> mpValue;
+
+    AtkObject *child_about_to_be_removed;
+    gint       index_of_child_about_to_be_removed;
+//    OString * m_pKeyBindings
+};
+
+struct AtkObjectWrapperClass
+{
+    GtkWidgetAccessibleClass aParentClass;
+};
+
+GType                  atk_object_wrapper_get_type() G_GNUC_CONST;
+AtkObject *            atk_object_wrapper_ref(
+    const css::uno::Reference< css::accessibility::XAccessible >& rxAccessible,
+    bool create = true );
+
+AtkObject *            atk_object_wrapper_new(
+    const css::uno::Reference< css::accessibility::XAccessible >& rxAccessible,
+    AtkObject* parent = nullptr, AtkObject* orig = nullptr );
+
+void                   atk_object_wrapper_add_child(AtkObjectWrapper* wrapper, AtkObject *child, gint index);
+void                   atk_object_wrapper_remove_child(AtkObjectWrapper* wrapper, AtkObject *child, gint index);
+void                   atk_object_wrapper_set_role(AtkObjectWrapper* wrapper, sal_Int16 role);
+
+void                   atk_object_wrapper_dispose(AtkObjectWrapper* wrapper);
+
+AtkStateType mapAtkState( sal_Int16 nState );
+
+AtkRelation*           atk_object_wrapper_relation_new(const css::accessibility::AccessibleRelation& rRelation);
+
+void                   actionIfaceInit(AtkActionIface *iface);
+void                   componentIfaceInit(AtkComponentIface *iface);
+void                   editableTextIfaceInit(AtkEditableTextIface *iface);
+void                   hypertextIfaceInit(AtkHypertextIface *iface);
+void                   imageIfaceInit(AtkImageIface *iface);
+void                   selectionIfaceInit(AtkSelectionIface *iface);
+void                   tableIfaceInit(AtkTableIface *iface);
+void                   textIfaceInit(AtkTextIface *iface);
+void                   valueIfaceInit(AtkValueIface *iface);
+
+} // extern "C"
+
+#define ATK_TYPE_OBJECT_WRAPPER atk_object_wrapper_get_type()
+#define ATK_OBJECT_WRAPPER(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_OBJECT_WRAPPER, AtkObjectWrapper))
+#define ATK_IS_OBJECT_WRAPPER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_OBJECT_WRAPPER))
+
+static inline gchar *
+OUStringToGChar(std::u16string_view rString )
+{
+    OString aUtf8 = OUStringToOString( rString, RTL_TEXTENCODING_UTF8 );
+    return g_strdup( aUtf8.getStr() );
+}
+
+#define OUStringToConstGChar( string ) OUStringToOString( string, RTL_TEXTENCODING_UTF8 ).getStr()
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */