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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "DomBuilderContext.hxx"
#include <xmloff/nmspmap.hxx>
#include <xmloff/xmlimp.hxx>
#include "xmloff/xmlerror.hxx"
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/xml/dom/XAttr.hpp>
#include <com/sun/star/xml/dom/DocumentBuilder.hpp>
#include <com/sun/star/xml/dom/XNode.hpp>
#include <com/sun/star/xml/dom/XElement.hpp>
#include <com/sun/star/xml/sax/XAttributeList.hpp>
#include <com/sun/star/xml/dom/NodeType.hpp>
#include <rtl/ustring.hxx>
#include <tools/debug.hxx>
#include <comphelper/processfactory.hxx>
using com::sun::star::lang::XMultiServiceFactory;
using com::sun::star::uno::XComponentContext;
using com::sun::star::uno::Reference;
using com::sun::star::uno::Sequence;
using com::sun::star::uno::UNO_QUERY;
using com::sun::star::uno::UNO_QUERY_THROW;
using com::sun::star::xml::dom::DocumentBuilder;
using com::sun::star::xml::dom::XAttr;
using com::sun::star::xml::dom::XDocument;
using com::sun::star::xml::dom::XDocumentBuilder;
using com::sun::star::xml::dom::XNode;
using com::sun::star::xml::dom::XElement;
using com::sun::star::xml::sax::XAttributeList;
using com::sun::star::xml::dom::NodeType_ELEMENT_NODE;
using rtl::OUString;
// helper functions; implemented below
Reference<XNode> lcl_createDomInstance();
Reference<XNode> lcl_createElement( SvXMLImport& rImport,
sal_uInt16 nPrefix,
const OUString rLocalName,
Reference<XNode> xParent);
DomBuilderContext::DomBuilderContext( SvXMLImport& rImport,
sal_uInt16 nPrefix,
const OUString& rLocalName ) :
SvXMLImportContext( rImport, nPrefix, rLocalName ),
mxNode( lcl_createElement( rImport, nPrefix, rLocalName,
lcl_createDomInstance() ) )
{
DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
DBG_ASSERT( Reference<XElement>( mxNode, UNO_QUERY ).is(), "need element" );
DBG_ASSERT( mxNode->getNodeType() == NodeType_ELEMENT_NODE, "need element" );
}
DomBuilderContext::DomBuilderContext( SvXMLImport& rImport,
sal_uInt16 nPrefix,
const OUString& rLocalName,
Reference<XNode>& xParent ) :
SvXMLImportContext( rImport, nPrefix, rLocalName ),
mxNode( lcl_createElement( rImport, nPrefix, rLocalName, xParent ) )
{
DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
DBG_ASSERT( Reference<XElement>( mxNode, UNO_QUERY ).is(), "need element" );
DBG_ASSERT( mxNode->getNodeType() == NodeType_ELEMENT_NODE, "need element" );
}
DomBuilderContext::~DomBuilderContext()
{
}
Reference<XDocument> DomBuilderContext::getTree()
{
DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
return mxNode->getOwnerDocument();
}
SvXMLImportContext* DomBuilderContext::CreateChildContext(
sal_uInt16 nPrefix,
const OUString& rLocalName,
const Reference<XAttributeList>& )
{
// create DomBuilder for subtree
return new DomBuilderContext( GetImport(), nPrefix, rLocalName, mxNode );
}
void DomBuilderContext::StartElement(
const Reference<XAttributeList>& xAttrList )
{
DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
DBG_ASSERT( mxNode->getOwnerDocument().is(), "XNode must have XDocument" );
// add attribute nodes to new node
sal_Int16 nAttributeCount = xAttrList->getLength();
for( sal_Int16 i = 0; i < nAttributeCount; i++ )
{
// get name & value for attribute
const OUString& rName = xAttrList->getNameByIndex( i );
const OUString& rValue = xAttrList->getValueByIndex( i );
// namespace handling: determine namespace & namespace keykey
OUString sNamespace;
sal_uInt16 nNamespaceKey =
GetImport().GetNamespaceMap()._GetKeyByAttrName(
rName, NULL, NULL, &sNamespace );
// create attribute node and set value
Reference<XElement> xElement( mxNode, UNO_QUERY_THROW );
switch( nNamespaceKey )
{
case XML_NAMESPACE_NONE:
// no namespace: create a non-namespaced attribute
xElement->setAttribute( rName, rValue );
break;
case XML_NAMESPACE_XMLNS:
// namespace declaration: ignore, since the DOM tree handles these
// declarations implicitly
break;
case XML_NAMESPACE_UNKNOWN:
// unknown namespace: illegal input. Raise Warning.
{
Sequence<OUString> aSeq(2);
aSeq[0] = rName;
aSeq[1] = rValue;
GetImport().SetError(
XMLERROR_FLAG_WARNING | XMLERROR_NAMESPACE_TROUBLE, aSeq );
}
break;
default:
// a real and proper namespace: create namespaced attribute
xElement->setAttributeNS( sNamespace, rName, rValue );
break;
}
}
}
void DomBuilderContext::EndElement()
{
// nothing to be done!
}
void DomBuilderContext::Characters( const OUString& rCharacters )
{
DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
// TODO: I assume adjacent text nodes should be joined, to preserve
// processinf model? (I.e., if the SAX parser breaks a string into 2
// Characters(..) calls, the DOM model would still see only one child.)
// create text node and append to parent
Reference<XNode> xNew(
mxNode->getOwnerDocument()->createTextNode( rCharacters ),
UNO_QUERY_THROW );
mxNode->appendChild( xNew );
}
//
// helper function implementations
//
Reference<XNode> lcl_createDomInstance()
{
Reference<XComponentContext> xContext = comphelper::getProcessComponentContext();
DBG_ASSERT( xContext.is(), "can't get service factory" );
Reference<XDocumentBuilder> xBuilder( DocumentBuilder::create(xContext) );
return Reference<XNode>( xBuilder->newDocument(), UNO_QUERY_THROW );
}
Reference<XNode> lcl_createElement( SvXMLImport& rImport,
sal_uInt16 nPrefix,
const OUString rLocalName,
Reference<XNode> xParent)
{
DBG_ASSERT( xParent.is(), "need parent node" );
Reference<XDocument> xDocument = xParent->getOwnerDocument();
DBG_ASSERT( xDocument.is(), "no XDocument found!" );
// TODO: come up with proper way of handling namespaces; re-creating the
// namespace from the key is NOT a good idea, and will not work for
// multiple prefixes for the same namespace. Fortunately, those are rare.
Reference<XElement> xElement;
switch( nPrefix )
{
case XML_NAMESPACE_NONE:
// no namespace: use local name
xElement = xDocument->createElement( rLocalName );
break;
case XML_NAMESPACE_XMLNS:
case XML_NAMESPACE_UNKNOWN:
// both cases are illegal; raise warning (and use only local name)
xElement = xDocument->createElement( rLocalName );
{
Sequence<OUString> aSeq(1);
aSeq[0] = rLocalName;
rImport.SetError(
XMLERROR_FLAG_WARNING | XMLERROR_NAMESPACE_TROUBLE, aSeq );
}
break;
default:
// We are only given the prefix and the local name; thus we have to ask
// the namespace map to create a qualified name for us. Technically,
// this is a bug, since this will fail for multiple prefixes used for
// the same namespace.
xElement = xDocument->createElementNS(
rImport.GetNamespaceMap().GetNameByKey( nPrefix ),
rImport.GetNamespaceMap().GetQNameByKey( nPrefix, rLocalName ) );
break;
}
DBG_ASSERT( xElement.is(), "can't create element" );
// add new element to parent and return
Reference<XNode> xNode( xElement, UNO_QUERY_THROW );
xParent->appendChild( xNode );
return xNode;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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