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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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/accessibility/XAccessibleText.hpp>
+#include <com/sun/star/beans/PropertyValue.hdl>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <o3tl/typed_flags_set.hxx>
+#include <rtl/ustring.hxx>
+#include <vcl/dllapi.h>
+
+/**
+ * According to the IAccessible2 specification, some of the attributes that LibreOffice
+ * handles as text attributes are mapped to IAccessible2 text attributes as well,
+ * but others should be reported as object attributes (e.g. text alignment is reported
+ * via the "text-align" object attribute on the paragraph object).
+ *
+ * https://wiki.linuxfoundation.org/accessibility/iaccessible2/textattributes
+ * https://wiki.linuxfoundation.org/accessibility/iaccessible2/objectattributes
+ *
+ * This enum class is used to specify the type(s) of attributes of interest.
+ */
+enum class IA2AttributeType
+{
+ None = 0x0000,
+ ObjectAttributes = 0x0001,
+ TextAttributes = 0x0002
+};
+
+template <> struct o3tl::typed_flags<IA2AttributeType> : is_typed_flags<IA2AttributeType, 0x003>
+{
+};
+
+class VCL_DLLPUBLIC AccessibleTextAttributeHelper
+{
+public:
+ /** Converts UNO text attribute properties to a string holding
+ * the corresponding IAccessible2 text attributes.
+ * @param rUnoAttributes A sequence holding the UNO text attributes.
+ * @param eAttributeType: The type(s) of attributes of interest.
+ * @returns String holding the corresponding IAccessible2 text properties.
+ */
+ static OUString ConvertUnoToIAccessible2TextAttributes(
+ const css::uno::Sequence<css::beans::PropertyValue>& rUnoAttributes,
+ IA2AttributeType eAttributeType);
+
+ /**
+ * Get the IAccessible2 text attributes and the span of the attributes at the given index.
+ * @param xText The interface to query for the information.
+ * @param eAttributeType: The type(s) of attributes of interest.
+ * @param nOffset Character offset for which to retrieve the information.
+ * @param rStartOffset Out param that is set to the start index of the attribute run.
+ * @param rEndOffset Out param that is set to the end index of the attribute run.
+ * @return IAccessible2 text attributes at the given character offset.
+ */
+ static OUString
+ GetIAccessible2TextAttributes(css::uno::Reference<css::accessibility::XAccessibleText> xText,
+ IA2AttributeType eAttributeType, sal_Int32 nOffset,
+ sal_Int32& rStartOffset, sal_Int32& rEndOffset);
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */