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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 .
*/
#include <DomExport.hxx>
#include <xmloff/namespacemap.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/xmlerror.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/xml/dom/XAttr.hpp>
#include <com/sun/star/xml/dom/XNode.hpp>
#include <com/sun/star/xml/dom/XElement.hpp>
#include <com/sun/star/xml/dom/NodeType.hpp>
#include <com/sun/star/xml/dom/XNamedNodeMap.hpp>
#include <rtl/ustring.hxx>
#include <rtl/ustrbuf.hxx>
#include <sal/log.hxx>
#include <osl/diagnose.h>
#include <vector>
using com::sun::star::uno::Reference;
using com::sun::star::uno::UNO_QUERY_THROW;
using std::vector;
using namespace com::sun::star::xml::dom;
namespace {
class DomVisitor
{
public:
DomVisitor() {}
virtual ~DomVisitor() {}
virtual void element( const Reference<XElement>& ) {}
virtual void character( const Reference<XCharacterData>& ) {}
virtual void endElement( const Reference<XElement>& ) {}
};
}
static void visit( DomVisitor&, const Reference<XDocument>& );
static void visit( DomVisitor&, const Reference<XNode>& );
static void visitNode( DomVisitor& rVisitor, const Reference<XNode>& xNode )
{
switch( xNode->getNodeType() )
{
case NodeType_ATTRIBUTE_NODE:
break;
case NodeType_CDATA_SECTION_NODE:
break;
case NodeType_COMMENT_NODE:
break;
case NodeType_DOCUMENT_FRAGMENT_NODE:
break;
case NodeType_DOCUMENT_NODE:
break;
case NodeType_DOCUMENT_TYPE_NODE:
break;
case NodeType_ELEMENT_NODE:
rVisitor.element( Reference<XElement>( xNode, UNO_QUERY_THROW ) );
break;
case NodeType_ENTITY_NODE:
break;
case NodeType_ENTITY_REFERENCE_NODE:
break;
case NodeType_NOTATION_NODE:
break;
case NodeType_PROCESSING_INSTRUCTION_NODE:
break;
case NodeType_TEXT_NODE:
rVisitor.character( Reference<XCharacterData>( xNode, UNO_QUERY_THROW ) );
break;
default:
OSL_FAIL( "unknown DOM node type" );
break;
}
}
void visit( DomVisitor& rVisitor, const Reference<XDocument>& xDocument )
{
visit( rVisitor, Reference<XNode>( xDocument, UNO_QUERY_THROW ) );
}
void visit( DomVisitor& rVisitor, const Reference<XNode>& xNode )
{
visitNode( rVisitor, xNode );
for( Reference<XNode> xChild = xNode->getFirstChild();
xChild.is();
xChild = xChild->getNextSibling() )
{
visit( rVisitor, xChild );
}
if( xNode->getNodeType() == NodeType_ELEMENT_NODE )
rVisitor.endElement( Reference<XElement>( xNode, UNO_QUERY_THROW ) );
}
namespace {
class DomExport: public DomVisitor
{
SvXMLExport& mrExport;
vector<SvXMLNamespaceMap> maNamespaces;
void pushNamespace();
void addNamespace( const OUString& sPrefix, const OUString& sURI );
OUString qualifiedName( const OUString& sPrefix, const OUString& sURI,
std::u16string_view sLocalName );
OUString qualifiedName( const Reference<XElement>& );
OUString qualifiedName( const Reference<XAttr>& );
void addAttribute( const Reference<XAttr>& );
public:
explicit DomExport( SvXMLExport& rExport );
virtual ~DomExport() override;
virtual void element( const Reference<XElement>& ) override;
virtual void endElement( const Reference<XElement>& ) override;
virtual void character( const Reference<XCharacterData>& ) override;
};
}
DomExport::DomExport( SvXMLExport& rExport ) :
mrExport( rExport )
{
maNamespaces.push_back( rExport.GetNamespaceMap() );
}
DomExport::~DomExport()
{
SAL_WARN_IF( maNamespaces.size() != 1, "xmloff", "namespace missing" );
maNamespaces.clear();
}
void DomExport::pushNamespace()
{
SvXMLNamespaceMap const aMap(maNamespaces.back());
maNamespaces.push_back(aMap);
}
void DomExport::addNamespace( const OUString& sPrefix, const OUString& sURI )
{
SvXMLNamespaceMap& rMap = maNamespaces.back();
sal_uInt16 nKey = rMap.GetKeyByPrefix( sPrefix );
// we need to register the namespace, if either the prefix isn't known or
// is used for a different namespace
if( nKey == XML_NAMESPACE_UNKNOWN ||
rMap.GetNameByKey( nKey ) != sURI )
{
// add prefix to map, and add declaration
rMap.Add( sPrefix, sURI );
mrExport.AddAttribute( "xmlns:" + sPrefix, sURI );
}
}
OUString DomExport::qualifiedName( const OUString& sPrefix,
const OUString& sURI,
std::u16string_view sLocalName )
{
OUStringBuffer sBuffer;
if( !sPrefix.isEmpty() && !sURI.isEmpty() )
{
addNamespace( sPrefix, sURI );
sBuffer.append( sPrefix );
sBuffer.append( ':' );
}
sBuffer.append( sLocalName );
return sBuffer.makeStringAndClear();
}
OUString DomExport::qualifiedName( const Reference<XElement>& xElement )
{
return qualifiedName( xElement->getPrefix(), xElement->getNamespaceURI(),
xElement->getNodeName() );
}
OUString DomExport::qualifiedName( const Reference<XAttr>& xAttr )
{
return qualifiedName( xAttr->getPrefix(), xAttr->getNamespaceURI(),
xAttr->getNodeName() );
}
void DomExport::addAttribute( const Reference<XAttr>& xAttribute )
{
mrExport.AddAttribute( qualifiedName( xAttribute ),
xAttribute->getNodeValue() );
}
void DomExport::element( const Reference<XElement>& xElement )
{
pushNamespace();
// write attributes
Reference<XNamedNodeMap> xAttributes = xElement->getAttributes();
sal_Int32 nLength = xAttributes.is() ? xAttributes->getLength() : 0;
for( sal_Int32 n = 0; n < nLength; n++ )
{
addAttribute( Reference<XAttr>( xAttributes->item( n ), UNO_QUERY_THROW ) );
}
// write name
mrExport.StartElement( qualifiedName( xElement ), false );
}
void DomExport::endElement( const Reference<XElement>& xElement )
{
mrExport.EndElement( qualifiedName( xElement ), false );
maNamespaces.pop_back();
}
void DomExport::character( const Reference<XCharacterData>& xChars )
{
mrExport.Characters( xChars->getNodeValue() );
}
void exportDom( SvXMLExport& rExport, const Reference<XDocument>& xDocument )
{
DomExport aDomExport( rExport );
visit( aDomExport, xDocument );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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