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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /unoxml/source/dom/saxbuilder.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-upstream.tar.xz libreoffice-upstream.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | unoxml/source/dom/saxbuilder.cxx | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/unoxml/source/dom/saxbuilder.cxx b/unoxml/source/dom/saxbuilder.cxx new file mode 100644 index 000000000..61b7a496a --- /dev/null +++ b/unoxml/source/dom/saxbuilder.cxx @@ -0,0 +1,344 @@ +/* -*- 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 <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: */ |