246 lines
7 KiB
C++
246 lines
7 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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#include <DomExport.hxx>
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#include <xmloff/namespacemap.hxx>
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#include <xmloff/xmlexp.hxx>
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#include <xmloff/xmlerror.hxx>
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#include <com/sun/star/uno/Reference.hxx>
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#include <com/sun/star/xml/dom/XAttr.hpp>
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#include <com/sun/star/xml/dom/XNode.hpp>
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#include <com/sun/star/xml/dom/XElement.hpp>
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#include <com/sun/star/xml/dom/NodeType.hpp>
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#include <com/sun/star/xml/dom/XNamedNodeMap.hpp>
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#include <rtl/ustring.hxx>
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#include <sal/log.hxx>
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#include <osl/diagnose.h>
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#include <vector>
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using com::sun::star::uno::Reference;
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using com::sun::star::uno::UNO_QUERY_THROW;
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using std::vector;
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using namespace com::sun::star::xml::dom;
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namespace {
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class DomVisitor
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{
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public:
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DomVisitor() {}
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virtual ~DomVisitor() {}
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virtual void element( const Reference<XElement>& ) {}
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virtual void character( const Reference<XCharacterData>& ) {}
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virtual void endElement( const Reference<XElement>& ) {}
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};
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}
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static void visit( DomVisitor&, const Reference<XDocument>& );
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static void visit( DomVisitor&, const Reference<XNode>& );
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static void visitNode( DomVisitor& rVisitor, const Reference<XNode>& xNode )
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{
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switch( xNode->getNodeType() )
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{
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case NodeType_ATTRIBUTE_NODE:
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break;
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case NodeType_CDATA_SECTION_NODE:
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break;
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case NodeType_COMMENT_NODE:
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break;
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case NodeType_DOCUMENT_FRAGMENT_NODE:
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break;
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case NodeType_DOCUMENT_NODE:
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break;
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case NodeType_DOCUMENT_TYPE_NODE:
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break;
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case NodeType_ELEMENT_NODE:
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rVisitor.element( Reference<XElement>( xNode, UNO_QUERY_THROW ) );
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break;
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case NodeType_ENTITY_NODE:
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break;
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case NodeType_ENTITY_REFERENCE_NODE:
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break;
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case NodeType_NOTATION_NODE:
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break;
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case NodeType_PROCESSING_INSTRUCTION_NODE:
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break;
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case NodeType_TEXT_NODE:
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rVisitor.character( Reference<XCharacterData>( xNode, UNO_QUERY_THROW ) );
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break;
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default:
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OSL_FAIL( "unknown DOM node type" );
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break;
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}
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}
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void visit( DomVisitor& rVisitor, const Reference<XDocument>& xDocument )
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{
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visit( rVisitor, Reference<XNode>( xDocument, UNO_QUERY_THROW ) );
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}
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void visit( DomVisitor& rVisitor, const Reference<XNode>& xNode )
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{
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visitNode( rVisitor, xNode );
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for( Reference<XNode> xChild = xNode->getFirstChild();
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xChild.is();
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xChild = xChild->getNextSibling() )
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{
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visit( rVisitor, xChild );
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}
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if( xNode->getNodeType() == NodeType_ELEMENT_NODE )
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rVisitor.endElement( Reference<XElement>( xNode, UNO_QUERY_THROW ) );
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}
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namespace {
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class DomExport: public DomVisitor
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{
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SvXMLExport& mrExport;
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vector<SvXMLNamespaceMap> maNamespaces;
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void pushNamespace();
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void addNamespace( const OUString& sPrefix, const OUString& sURI );
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OUString qualifiedName( const OUString& sPrefix, const OUString& sURI,
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const OUString& sLocalName );
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OUString qualifiedName( const Reference<XElement>& );
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OUString qualifiedName( const Reference<XAttr>& );
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void addAttribute( const Reference<XAttr>& );
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public:
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explicit DomExport( SvXMLExport& rExport );
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virtual ~DomExport() override;
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virtual void element( const Reference<XElement>& ) override;
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virtual void endElement( const Reference<XElement>& ) override;
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virtual void character( const Reference<XCharacterData>& ) override;
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};
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}
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DomExport::DomExport( SvXMLExport& rExport ) :
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mrExport( rExport )
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{
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maNamespaces.push_back( rExport.GetNamespaceMap() );
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}
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DomExport::~DomExport()
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{
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SAL_WARN_IF( maNamespaces.size() != 1, "xmloff", "namespace missing" );
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maNamespaces.clear();
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}
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void DomExport::pushNamespace()
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{
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SvXMLNamespaceMap const aMap(maNamespaces.back());
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maNamespaces.push_back(aMap);
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}
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void DomExport::addNamespace( const OUString& sPrefix, const OUString& sURI )
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{
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SvXMLNamespaceMap& rMap = maNamespaces.back();
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sal_uInt16 nKey = rMap.GetKeyByPrefix( sPrefix );
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// we need to register the namespace, if either the prefix isn't known or
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// is used for a different namespace
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if( nKey == XML_NAMESPACE_UNKNOWN ||
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rMap.GetNameByKey( nKey ) != sURI )
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{
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// add prefix to map, and add declaration
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rMap.Add( sPrefix, sURI );
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mrExport.AddAttribute( "xmlns:" + sPrefix, sURI );
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}
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}
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OUString DomExport::qualifiedName( const OUString& sPrefix,
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const OUString& sURI,
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const OUString& sLocalName )
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{
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if( !sPrefix.isEmpty() && !sURI.isEmpty() )
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{
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addNamespace( sPrefix, sURI );
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return sPrefix + ":" + sLocalName;
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}
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else
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return sLocalName;
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}
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OUString DomExport::qualifiedName( const Reference<XElement>& xElement )
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{
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return qualifiedName( xElement->getPrefix(), xElement->getNamespaceURI(),
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xElement->getNodeName() );
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}
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OUString DomExport::qualifiedName( const Reference<XAttr>& xAttr )
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{
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return qualifiedName( xAttr->getPrefix(), xAttr->getNamespaceURI(),
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xAttr->getNodeName() );
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}
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void DomExport::addAttribute( const Reference<XAttr>& xAttribute )
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{
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mrExport.AddAttribute( qualifiedName( xAttribute ),
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xAttribute->getNodeValue() );
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}
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void DomExport::element( const Reference<XElement>& xElement )
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{
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pushNamespace();
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// write attributes
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Reference<XNamedNodeMap> xAttributes = xElement->getAttributes();
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sal_Int32 nLength = xAttributes.is() ? xAttributes->getLength() : 0;
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for( sal_Int32 n = 0; n < nLength; n++ )
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{
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addAttribute( Reference<XAttr>( xAttributes->item( n ), UNO_QUERY_THROW ) );
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}
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// write name
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mrExport.StartElement( qualifiedName( xElement ), false );
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}
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void DomExport::endElement( const Reference<XElement>& xElement )
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{
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mrExport.EndElement( qualifiedName( xElement ), false );
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maNamespaces.pop_back();
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}
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void DomExport::character( const Reference<XCharacterData>& xChars )
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{
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mrExport.Characters( xChars->getNodeValue() );
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}
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void exportDom( SvXMLExport& rExport, const Reference<XDocument>& xDocument )
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{
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DomExport aDomExport( rExport );
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visit( aDomExport, xDocument );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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