aef40e7388
xmlhelp, xmloff, xmlsecurity Change-Id: I80c6fa806387f3dcba8be7f93fe2fef146b033e3 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112050 Tested-by: Jenkins Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <rtl/ustring.hxx>
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#include <map>
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#include <memory>
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#include <vector>
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namespace com::sun::star {
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namespace beans { class XPropertySet; }
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namespace uno { template<class A> class Reference; }
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}
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/** This class maintains an OUString->sal_Int16 mapping for cases in
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* which an XPropertySet needs to be filled with values that are not
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* yet known.
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*
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* A good example for appropriate use are footnotes and references to
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* footnotes. Internally, the LibreOffice API numbers footnotes, and
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* references to footnotes refer to that internal numbering. In the
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* XML file format, these numbers are replaced with name strings. Now
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* if during import of a document a reference to a footnote is
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* encountered, two things can happen: 1) The footnote already
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* appeared in the document. In this case the name is already known
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* and the proper ID can be requested from the footnote. 2) The
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* footnote will appear later in the document. In this case the ID is
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* not yet known, and the reference-ID property of the reference
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* cannot be determined. Hence, the reference has to be stored and the
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* ID needs to bet set later, when the footnote is eventually found in
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* the document.
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*
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* This class simplifies this process: If the footnote is found,
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* ResolveId with the XML name and the ID is called. When a reference
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* is encountered, SetProperty gets called with the reference's
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* XPropertySet and the XML name. All remaining tasks are handled by
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* the class.
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*/
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template <class A>
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class XMLPropertyBackpatcher
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{
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/// name of property that gets set or backpatched
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OUString sPropertyName;
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/// backpatch list type
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typedef ::std::vector<
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css::uno::Reference<css::beans::XPropertySet> > BackpatchListType;
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/// backpatch list for unresolved IDs
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::std::map<const OUString, std::unique_ptr<BackpatchListType>> aBackpatchListMap;
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/// mapping of names -> IDs
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::std::map<const OUString, A> aIDMap;
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public:
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explicit XMLPropertyBackpatcher(
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const OUString& sPropertyName);
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~XMLPropertyBackpatcher();
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/// resolve a known ID.
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/// Call this as soon as the value for a particular name is known.
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void ResolveId(
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const OUString& sName,
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A aValue);
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/// Set property with the proper value for this name. If the value
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/// is not yet known, store the XPropertySet in the backpatch list.
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/// Use this whenever the value should be set, even if it is not yet known.
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void SetProperty(
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const css::uno::Reference<css::beans::XPropertySet> & xPropSet,
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const OUString& sName);
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};
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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