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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 "saxbuilder.hxx"
#include <com/sun/star/xml/dom/DocumentBuilder.hpp>
#include <com/sun/star/xml/sax/SAXException.hpp>
#include <comphelper/processfactory.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <sax/fastattribs.hxx>
#include <xmloff/xmlimp.hxx>
using namespace css::lang;
using namespace css::uno;
using namespace css::xml::dom;
using namespace css::xml::sax;
namespace DOM
{
CSAXDocumentBuilder::CSAXDocumentBuilder(const Reference< XComponentContext >& ctx)
: m_xContext(ctx)
, m_aState( SAXDocumentBuilderState_READY)
{}
Sequence< OUString > SAL_CALL CSAXDocumentBuilder::getSupportedServiceNames()
{
return { "com.sun.star.xml.dom.SAXDocumentBuilder" };
}
OUString SAL_CALL CSAXDocumentBuilder::getImplementationName()
{
return "com.sun.star.comp.xml.dom.SAXDocumentBuilder";
}
sal_Bool SAL_CALL CSAXDocumentBuilder::supportsService(const OUString& aServiceName)
{
return cppu::supportsService(this, aServiceName);
}
SAXDocumentBuilderState SAL_CALL CSAXDocumentBuilder::getState()
{
std::scoped_lock g(m_Mutex);
return m_aState;
}
void SAL_CALL CSAXDocumentBuilder::reset()
{
std::scoped_lock g(m_Mutex);
m_aDocument.clear();
m_aFragment.clear();
while (!m_aNodeStack.empty()) m_aNodeStack.pop();
m_aState = SAXDocumentBuilderState_READY;
}
Reference< XDocument > SAL_CALL CSAXDocumentBuilder::getDocument()
{
std::scoped_lock g(m_Mutex);
if (m_aState != SAXDocumentBuilderState_DOCUMENT_FINISHED)
throw RuntimeException();
return m_aDocument;
}
Reference< XDocumentFragment > SAL_CALL CSAXDocumentBuilder::getDocumentFragment()
{
std::scoped_lock g(m_Mutex);
if (m_aState != SAXDocumentBuilderState_FRAGMENT_FINISHED)
throw RuntimeException();
return m_aFragment;
}
void SAL_CALL CSAXDocumentBuilder::startDocumentFragment(const Reference< XDocument >& ownerDoc)
{
std::scoped_lock g(m_Mutex);
// start a new document fragment and push it onto the stack
// we have to be in a clean state to do this
if (m_aState != SAXDocumentBuilderState_READY)
throw RuntimeException();
m_aDocument = ownerDoc;
Reference< XDocumentFragment > aFragment = m_aDocument->createDocumentFragment();
m_aNodeStack.push(aFragment);
m_aFragment = aFragment;
m_aState = SAXDocumentBuilderState_BUILDING_FRAGMENT;
}
void SAL_CALL CSAXDocumentBuilder::endDocumentFragment()
{
std::scoped_lock g(m_Mutex);
// there should only be the document left on the node stack
if (m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
throw RuntimeException();
Reference< XNode > aNode = m_aNodeStack.top();
if ( aNode->getNodeType() != NodeType_DOCUMENT_FRAGMENT_NODE)
throw RuntimeException();
m_aNodeStack.pop();
m_aState = SAXDocumentBuilderState_FRAGMENT_FINISHED;
}
//XFastDocumentHandler
void SAL_CALL CSAXDocumentBuilder::startDocument()
{
std::scoped_lock g(m_Mutex);
// start a new document and push it onto the stack
// we have to be in a clean state to do this
if (m_aState != SAXDocumentBuilderState_READY)
throw SAXException();
Reference< XDocumentBuilder > aBuilder(DocumentBuilder::create(m_xContext));
Reference< XDocument > aDocument = aBuilder->newDocument();
m_aNodeStack.push(aDocument);
m_aDocument = aDocument;
m_aState = SAXDocumentBuilderState_BUILDING_DOCUMENT;
}
void SAL_CALL CSAXDocumentBuilder::endDocument()
{
std::scoped_lock g(m_Mutex);
// there should only be the document left on the node stack
if (m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT)
throw SAXException();
Reference< XNode > aNode = m_aNodeStack.top();
if ( aNode->getNodeType() != NodeType_DOCUMENT_NODE)
throw SAXException();
m_aNodeStack.pop();
m_aState = SAXDocumentBuilderState_DOCUMENT_FINISHED;
}
void SAL_CALL CSAXDocumentBuilder::processingInstruction( const OUString& rTarget, const OUString& rData )
{
std::scoped_lock g(m_Mutex);
// append PI node to the current top
if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
throw SAXException();
Reference< XProcessingInstruction > aInstruction = m_aDocument->createProcessingInstruction(
rTarget, rData);
m_aNodeStack.top()->appendChild(aInstruction);
}
void SAL_CALL CSAXDocumentBuilder::setDocumentLocator( const Reference< XLocator >& )
{
}
void SAL_CALL CSAXDocumentBuilder::startFastElement( sal_Int32 nElement , const Reference< XFastAttributeList >& xAttribs )
{
std::scoped_lock g(m_Mutex);
if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
{
throw SAXException();
}
Reference< XElement > aElement;
const OUString& aPrefix(SvXMLImport::getNamespacePrefixFromToken(nElement, nullptr));
const OUString& aURI( SvXMLImport::getNamespaceURIFromToken( nElement ) );
OUString aQualifiedName( SvXMLImport::getNameFromToken( nElement ) );
if( !aPrefix.isEmpty() )
aQualifiedName = aPrefix + SvXMLImport::aNamespaceSeparator + aQualifiedName;
if ( !aURI.isEmpty() )
{
// found a URI for prefix
// qualified name
aElement = m_aDocument->createElementNS( aURI, aQualifiedName );
}
else
{
// no URI for prefix
aElement = m_aDocument->createElement( aQualifiedName );
}
aElement.set( m_aNodeStack.top()->appendChild(aElement), UNO_QUERY);
m_aNodeStack.push(aElement);
if (xAttribs.is())
setElementFastAttributes(aElement, xAttribs);
}
// For arbitrary meta elements
void SAL_CALL CSAXDocumentBuilder::startUnknownElement( const OUString& rNamespace, const OUString& rName, const Reference< XFastAttributeList >& xAttribs )
{
std::scoped_lock g(m_Mutex);
if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
{
throw SAXException();
}
Reference< XElement > aElement;
if ( !rNamespace.isEmpty() )
aElement = m_aDocument->createElementNS( rNamespace, rName );
else
aElement = m_aDocument->createElement( rName );
aElement.set( m_aNodeStack.top()->appendChild(aElement), UNO_QUERY);
m_aNodeStack.push(aElement);
if (!xAttribs.is())
return;
setElementFastAttributes(aElement, xAttribs);
const Sequence< css::xml::Attribute > unknownAttribs = xAttribs->getUnknownAttributes();
for ( const auto& rUnknownAttrib : unknownAttribs )
{
const OUString& rAttrValue = rUnknownAttrib.Value;
const OUString& rAttrName = rUnknownAttrib.Name;
const OUString& rAttrNamespace = rUnknownAttrib.NamespaceURL;
if ( !rAttrNamespace.isEmpty() )
aElement->setAttributeNS( rAttrNamespace, rAttrName, rAttrValue );
else
aElement->setAttribute( rAttrName, rAttrValue );
}
}
void CSAXDocumentBuilder::setElementFastAttributes(const Reference< XElement >& aElement, const Reference< XFastAttributeList >& xAttribs)
{
for (auto &it : sax_fastparser::castToFastAttributeList( xAttribs ))
{
sal_Int32 nAttrToken = it.getToken();
const OUString& aAttrPrefix(SvXMLImport::getNamespacePrefixFromToken(nAttrToken, nullptr));
const OUString& aAttrURI( SvXMLImport::getNamespaceURIFromToken( nAttrToken ) );
OUString aAttrQualifiedName( SvXMLImport::getNameFromToken( nAttrToken ) );
if( !aAttrPrefix.isEmpty() )
aAttrQualifiedName = aAttrPrefix + SvXMLImport::aNamespaceSeparator + aAttrQualifiedName;
if ( !aAttrURI.isEmpty() )
aElement->setAttributeNS( aAttrURI, aAttrQualifiedName, it.toString() );
else
aElement->setAttribute( aAttrQualifiedName, it.toString() );
}
}
void SAL_CALL CSAXDocumentBuilder::endFastElement( sal_Int32 nElement )
{
std::scoped_lock g(m_Mutex);
// pop the current element from the stack
if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
throw SAXException();
Reference< XNode > aNode(m_aNodeStack.top());
if (aNode->getNodeType() != NodeType_ELEMENT_NODE)
throw SAXException();
Reference< XElement > aElement(aNode, UNO_QUERY);
if( aElement->getPrefix() != SvXMLImport::getNamespacePrefixFromToken(nElement, nullptr) ||
aElement->getTagName() != SvXMLImport::getNameFromToken( nElement ) ) // consistency check
throw SAXException();
// pop it
m_aNodeStack.pop();
}
void SAL_CALL CSAXDocumentBuilder::endUnknownElement( const OUString& /*rNamespace*/, const OUString& rName )
{
std::scoped_lock g(m_Mutex);
// pop the current element from the stack
if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
throw SAXException();
Reference< XNode > aNode(m_aNodeStack.top());
if (aNode->getNodeType() != NodeType_ELEMENT_NODE)
throw SAXException();
Reference< XElement > aElement(aNode, UNO_QUERY);
OUString aRefName;
const OUString& aPrefix = aElement->getPrefix();
if (!aPrefix.isEmpty())
aRefName = aPrefix + SvXMLImport::aNamespaceSeparator + aElement->getTagName();
else
aRefName = aElement->getTagName();
if (aRefName != rName) // consistency check
throw SAXException();
// pop it
m_aNodeStack.pop();
}
Reference< XFastContextHandler > SAL_CALL CSAXDocumentBuilder::createFastChildContext( sal_Int32/* nElement */, const Reference< XFastAttributeList >&/* xAttribs */ )
{
return nullptr;
}
Reference< XFastContextHandler > SAL_CALL CSAXDocumentBuilder::createUnknownChildContext( const OUString&/* rNamespace */, const OUString&/* rName */, const Reference< XFastAttributeList >&/* xAttribs */ )
{
return nullptr;
}
void SAL_CALL CSAXDocumentBuilder::characters( const OUString& rChars )
{
std::scoped_lock g(m_Mutex);
// append text node to the current top element
if (m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
throw SAXException();
Reference< XText > aText = m_aDocument->createTextNode(rChars);
m_aNodeStack.top()->appendChild(aText);
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
unoxml_CSAXDocumentBuilder_get_implementation(
css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
{
return cppu::acquire(new DOM::CSAXDocumentBuilder(context));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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