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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 :
21 : #include "DomExport.hxx"
22 :
23 : #include <xmloff/nmspmap.hxx>
24 : #include <xmloff/xmlexp.hxx>
25 : #include <xmloff/xmlerror.hxx>
26 :
27 : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
28 : #include <com/sun/star/uno/Reference.hxx>
29 : #include <com/sun/star/uno/Sequence.hxx>
30 : #include <com/sun/star/xml/dom/XAttr.hpp>
31 : #include <com/sun/star/xml/dom/XDocumentBuilder.hpp>
32 : #include <com/sun/star/xml/dom/XNode.hpp>
33 : #include <com/sun/star/xml/dom/XElement.hpp>
34 : #include <com/sun/star/xml/dom/XEntity.hpp>
35 : #include <com/sun/star/xml/dom/XNotation.hpp>
36 : #include <com/sun/star/xml/sax/XAttributeList.hpp>
37 : #include <com/sun/star/xml/dom/NodeType.hpp>
38 : #include <com/sun/star/xml/dom/XNamedNodeMap.hpp>
39 :
40 : #include <rtl/ustring.hxx>
41 : #include <rtl/ustrbuf.hxx>
42 : #include <tools/debug.hxx>
43 :
44 :
45 : #include <vector>
46 :
47 :
48 : using com::sun::star::lang::XMultiServiceFactory;
49 : using com::sun::star::uno::Reference;
50 : using com::sun::star::uno::Sequence;
51 : using com::sun::star::uno::UNO_QUERY;
52 : using com::sun::star::uno::UNO_QUERY_THROW;
53 : using std::vector;
54 :
55 : using namespace com::sun::star::xml::dom;
56 :
57 :
58 :
59 : class DomVisitor
60 : {
61 : public:
62 0 : DomVisitor() {}
63 0 : virtual ~DomVisitor() {}
64 0 : virtual void element( const Reference<XElement>& ) {}
65 0 : virtual void character( const Reference<XCharacterData>& ) {}
66 0 : virtual void endElement( const Reference<XElement>& ) {}
67 : };
68 :
69 : void visit( DomVisitor&, const Reference<XDocument>& );
70 : void visit( DomVisitor&, const Reference<XNode>& );
71 :
72 :
73 :
74 0 : void visitNode( DomVisitor& rVisitor, const Reference<XNode>& xNode )
75 : {
76 0 : switch( xNode->getNodeType() )
77 : {
78 : case NodeType_ATTRIBUTE_NODE:
79 0 : break;
80 : case NodeType_CDATA_SECTION_NODE:
81 0 : break;
82 : case NodeType_COMMENT_NODE:
83 0 : break;
84 : case NodeType_DOCUMENT_FRAGMENT_NODE:
85 0 : break;
86 : case NodeType_DOCUMENT_NODE:
87 0 : break;
88 : case NodeType_DOCUMENT_TYPE_NODE:
89 0 : break;
90 : case NodeType_ELEMENT_NODE:
91 0 : rVisitor.element( Reference<XElement>( xNode, UNO_QUERY_THROW ) );
92 0 : break;
93 : case NodeType_ENTITY_NODE:
94 0 : break;
95 : case NodeType_ENTITY_REFERENCE_NODE:
96 0 : break;
97 : case NodeType_NOTATION_NODE:
98 0 : break;
99 : case NodeType_PROCESSING_INSTRUCTION_NODE:
100 0 : break;
101 : case NodeType_TEXT_NODE:
102 0 : rVisitor.character( Reference<XCharacterData>( xNode, UNO_QUERY_THROW ) );
103 0 : break;
104 : default:
105 : OSL_FAIL( "unknown DOM node type" );
106 0 : break;
107 : }
108 0 : }
109 :
110 0 : void visit( DomVisitor& rVisitor, const Reference<XDocument>& xDocument )
111 : {
112 0 : visit( rVisitor, Reference<XNode>( xDocument, UNO_QUERY_THROW ) );
113 0 : }
114 :
115 0 : void visit( DomVisitor& rVisitor, const Reference<XNode>& xNode )
116 : {
117 0 : visitNode( rVisitor, xNode );
118 0 : for( Reference<XNode> xChild = xNode->getFirstChild();
119 : xChild.is();
120 0 : xChild = xChild->getNextSibling() )
121 : {
122 0 : visit( rVisitor, xChild );
123 0 : }
124 0 : if( xNode->getNodeType() == NodeType_ELEMENT_NODE )
125 0 : rVisitor.endElement( Reference<XElement>( xNode, UNO_QUERY_THROW ) );
126 0 : }
127 :
128 :
129 :
130 : class DomExport: public DomVisitor
131 : {
132 : SvXMLExport& mrExport;
133 : vector<SvXMLNamespaceMap> maNamespaces;
134 :
135 : void pushNamespace();
136 : void popNamespace();
137 : void addNamespace( const OUString& sPrefix, const OUString& sURI );
138 : OUString qualifiedName( const OUString& sPrefix, const OUString& sURI,
139 : const OUString& sLocalName );
140 : OUString qualifiedName( const Reference<XElement>& );
141 : OUString qualifiedName( const Reference<XAttr>& );
142 : void addAttribute( const Reference<XAttr>& );
143 :
144 : public:
145 :
146 : explicit DomExport( SvXMLExport& rExport );
147 : virtual ~DomExport();
148 :
149 : virtual void element( const Reference<XElement>& ) SAL_OVERRIDE;
150 : virtual void endElement( const Reference<XElement>& ) SAL_OVERRIDE;
151 : virtual void character( const Reference<XCharacterData>& ) SAL_OVERRIDE;
152 : };
153 :
154 0 : DomExport::DomExport( SvXMLExport& rExport ) :
155 0 : mrExport( rExport )
156 : {
157 0 : maNamespaces.push_back( rExport.GetNamespaceMap() );
158 0 : }
159 :
160 0 : DomExport::~DomExport()
161 : {
162 : DBG_ASSERT( maNamespaces.size() == 1, "namespace missing" );
163 0 : maNamespaces.clear();
164 0 : }
165 :
166 0 : void DomExport::pushNamespace()
167 : {
168 0 : SvXMLNamespaceMap const aMap(maNamespaces.back());
169 0 : maNamespaces.push_back(aMap);
170 0 : }
171 :
172 0 : void DomExport::popNamespace()
173 : {
174 0 : maNamespaces.pop_back();
175 0 : }
176 :
177 0 : void DomExport::addNamespace( const OUString& sPrefix, const OUString& sURI )
178 : {
179 0 : SvXMLNamespaceMap& rMap = maNamespaces.back();
180 0 : sal_uInt16 nKey = rMap.GetKeyByPrefix( sPrefix );
181 :
182 : // we need to register the namespace, if either the prefix isn't known or
183 : // is used for a different namespace
184 0 : if( nKey == XML_NAMESPACE_UNKNOWN ||
185 0 : rMap.GetNameByKey( nKey ) != sURI )
186 : {
187 : // add prefix to map, and add declaration
188 0 : rMap.Add( sPrefix, sURI );
189 0 : mrExport.AddAttribute( "xmlns:" + sPrefix, sURI );
190 : }
191 0 : }
192 :
193 0 : OUString DomExport::qualifiedName( const OUString& sPrefix,
194 : const OUString& sURI,
195 : const OUString& sLocalName )
196 : {
197 0 : OUStringBuffer sBuffer;
198 0 : if( !sPrefix.isEmpty() && !sURI.isEmpty() )
199 : {
200 0 : addNamespace( sPrefix, sURI );
201 0 : sBuffer.append( sPrefix );
202 0 : sBuffer.append( ':' );
203 : }
204 0 : sBuffer.append( sLocalName );
205 0 : return sBuffer.makeStringAndClear();
206 : }
207 :
208 0 : OUString DomExport::qualifiedName( const Reference<XElement>& xElement )
209 : {
210 0 : return qualifiedName( xElement->getPrefix(), xElement->getNamespaceURI(),
211 0 : xElement->getNodeName() );
212 : }
213 :
214 0 : OUString DomExport::qualifiedName( const Reference<XAttr>& xAttr )
215 : {
216 0 : return qualifiedName( xAttr->getPrefix(), xAttr->getNamespaceURI(),
217 0 : xAttr->getNodeName() );
218 : }
219 :
220 0 : void DomExport::addAttribute( const Reference<XAttr>& xAttribute )
221 : {
222 : mrExport.AddAttribute( qualifiedName( xAttribute ),
223 0 : xAttribute->getNodeValue() );
224 0 : }
225 :
226 0 : void DomExport::element( const Reference<XElement>& xElement )
227 : {
228 0 : pushNamespace();
229 :
230 : // write attributes
231 0 : Reference<XNamedNodeMap> xAttributes = xElement->getAttributes();
232 0 : sal_Int32 nLength = xAttributes.is() ? xAttributes->getLength() : 0;
233 0 : for( sal_Int32 n = 0; n < nLength; n++ )
234 : {
235 0 : addAttribute( Reference<XAttr>( xAttributes->item( n ), UNO_QUERY_THROW ) );
236 : }
237 :
238 : // write name
239 0 : mrExport.StartElement( qualifiedName( xElement ), false );
240 0 : }
241 :
242 0 : void DomExport::endElement( const Reference<XElement>& xElement )
243 : {
244 0 : mrExport.EndElement( qualifiedName( xElement ), false );
245 0 : popNamespace();
246 0 : }
247 :
248 0 : void DomExport::character( const Reference<XCharacterData>& xChars )
249 : {
250 0 : mrExport.Characters( xChars->getNodeValue() );
251 0 : }
252 :
253 :
254 0 : void exportDom( SvXMLExport& rExport, const Reference<XDocument>& xDocument )
255 : {
256 0 : DomExport aDomExport( rExport );
257 0 : visit( aDomExport, xDocument );
258 0 : }
259 :
260 0 : void exportDom( SvXMLExport& rExport, const Reference<XNode>& xNode )
261 : {
262 0 : DomExport aDomExport( rExport );
263 0 : visit( aDomExport, xNode );
264 0 : }
265 :
266 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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