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Diffstat (limited to 'unoxml/source/dom/attr.cxx')
| -rw-r--r-- | unoxml/source/dom/attr.cxx | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/unoxml/source/dom/attr.cxx b/unoxml/source/dom/attr.cxx new file mode 100644 index 0000000000..d8d873cdf0 --- /dev/null +++ b/unoxml/source/dom/attr.cxx @@ -0,0 +1,269 @@ +/* -*- 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 "attr.hxx" + +#include <string.h> + +#include <memory> +#include <libxml/entities.h> + +#include <osl/diagnose.h> +#include <sal/log.hxx> + +#include <com/sun/star/xml/dom/events/XMutationEvent.hpp> + +#include "document.hxx" + +using namespace css::uno; +using namespace css::xml::dom; +using namespace css::xml::dom::events; + +namespace DOM +{ + CAttr::CAttr(CDocument const& rDocument, ::osl::Mutex const& rMutex, + xmlAttrPtr const pAttr) + : CAttr_Base(rDocument, rMutex, + NodeType_ATTRIBUTE_NODE, reinterpret_cast<xmlNodePtr>(pAttr)) + , m_aAttrPtr(pAttr) + { + } + + xmlNsPtr CAttr::GetNamespace(xmlNodePtr const pNode) + { + if (!m_oNamespace) + { + return nullptr; + } + xmlChar const*const pUri(reinterpret_cast<xmlChar const*>( + m_oNamespace->first.getStr())); + xmlChar const*const pPrefix(reinterpret_cast<xmlChar const*>( + m_oNamespace->second.getStr())); + xmlNsPtr pNs = xmlSearchNs(pNode->doc, pNode, pPrefix); + if (pNs && (0 != xmlStrcmp(pNs->href, pUri))) { + return pNs; + } + pNs = xmlNewNs(pNode, pUri, pPrefix); + if (pNs) { + return pNs; + } + pNs = xmlSearchNsByHref(pNode->doc, pNode, pUri); + // if (!pNs) hmm... now what? throw? + if (!pNs) { + SAL_WARN("unoxml", "CAttr: cannot create namespace"); + } + return pNs; + } + + bool CAttr::IsChildTypeAllowed(NodeType const nodeType, NodeType const*const) + { + switch (nodeType) { + case NodeType_TEXT_NODE: + case NodeType_ENTITY_REFERENCE_NODE: + return true; + default: + return false; + } + } + + OUString SAL_CALL CAttr::getNodeName() + { + return getName(); + } + OUString SAL_CALL CAttr::getNodeValue() + { + return getValue(); + } + OUString SAL_CALL CAttr::getLocalName() + { + return getName(); + } + + + /** + Returns the name of this attribute. + */ + OUString SAL_CALL CAttr::getName() + { + ::osl::MutexGuard const g(m_rMutex); + + if ((nullptr == m_aNodePtr) || (nullptr == m_aAttrPtr)) { + return OUString(); + } + OUString const aName(reinterpret_cast<char const *>(m_aAttrPtr->name), + strlen(reinterpret_cast<char const *>(m_aAttrPtr->name)), RTL_TEXTENCODING_UTF8); + return aName; + } + + /** + The Element node this attribute is attached to or null if this + attribute is not in use. + */ + Reference< XElement > SAL_CALL CAttr::getOwnerElement() + { + ::osl::MutexGuard const g(m_rMutex); + + if ((nullptr == m_aNodePtr) || (nullptr == m_aAttrPtr)) { + return nullptr; + } + if (nullptr == m_aAttrPtr->parent) { + return nullptr; + } + Reference< XElement > const xRet( + static_cast< XNode* >(GetOwnerDocument().GetCNode( + m_aAttrPtr->parent).get()), + UNO_QUERY_THROW); + return xRet; + } + + /** + If this attribute was explicitly given a value in the original + document, this is true; otherwise, it is false. + */ + sal_Bool SAL_CALL CAttr::getSpecified() + { + // FIXME if this DOM implementation supported DTDs it would need + // to check that this attribute is not default or something + return true; + } + + /** + On retrieval, the value of the attribute is returned as a string. + */ + OUString SAL_CALL CAttr::getValue() + { + ::osl::MutexGuard const g(m_rMutex); + + if ((nullptr == m_aNodePtr) || (nullptr == m_aAttrPtr)) { + return OUString(); + } + if (nullptr == m_aAttrPtr->children) { + return OUString(); + } + char const*const pContent(reinterpret_cast<char const*>(m_aAttrPtr->children->content)); + return OUString(pContent, strlen(pContent), RTL_TEXTENCODING_UTF8); + } + + /** + Sets the value of the attribute from a string. + */ + void SAL_CALL CAttr::setValue(const OUString& value) + { + ::osl::ClearableMutexGuard guard(m_rMutex); + + if ((nullptr == m_aNodePtr) || (nullptr == m_aAttrPtr)) { + return; + } + + // remember old value (for mutation event) + OUString sOldValue = getValue(); + + OString o1 = OUStringToOString(value, RTL_TEXTENCODING_UTF8); + xmlChar const * pValue = reinterpret_cast<xmlChar const *>(o1.getStr()); + // this does not work if the attribute was created anew + // xmlNodePtr pNode = m_aAttrPtr->parent; + // xmlSetProp(pNode, m_aAttrPtr->name, pValue); + std::shared_ptr<xmlChar const> const buffer( + xmlEncodeEntitiesReentrant(m_aAttrPtr->doc, pValue), xmlFree); + xmlFreeNodeList(m_aAttrPtr->children); + m_aAttrPtr->children = + xmlStringGetNodeList(m_aAttrPtr->doc, buffer.get()); + xmlNodePtr tmp = m_aAttrPtr->children; + while (tmp != nullptr) { + tmp->parent = m_aNodePtr; + tmp->doc = m_aAttrPtr->doc; + if (tmp->next == nullptr) + m_aNodePtr->last = tmp; + tmp = tmp->next; + } + + // dispatch DOM events to signal change in attribute value + // dispatch DomAttrModified + DOMSubtreeModified + OUString sEventName( "DOMAttrModified" ); + Reference< XDocumentEvent > docevent(getOwnerDocument(), UNO_QUERY); + Reference< XMutationEvent > event(docevent->createEvent(sEventName),UNO_QUERY); + event->initMutationEvent( + sEventName, true, false, + Reference<XNode>( static_cast<XAttr*>( this ) ), + sOldValue, value, getName(), AttrChangeType_MODIFICATION ); + + guard.clear(); // release mutex before calling event handlers + + dispatchEvent(event); + dispatchSubtreeModified(); + } + + void SAL_CALL CAttr::setPrefix(const OUString& prefix) + { + ::osl::MutexGuard const g(m_rMutex); + + if (!m_aNodePtr) { return; } + + if (m_oNamespace) + { + OSL_ASSERT(!m_aNodePtr->parent); + m_oNamespace->second = + OUStringToOString(prefix, RTL_TEXTENCODING_UTF8); + } + else + { + CNode::setPrefix(prefix); + } + } + + OUString SAL_CALL CAttr::getPrefix() + { + ::osl::MutexGuard const g(m_rMutex); + + if (!m_aNodePtr) { return OUString(); } + + if (m_oNamespace) + { + OSL_ASSERT(!m_aNodePtr->parent); + OUString const ret(OStringToOUString( + m_oNamespace->second, RTL_TEXTENCODING_UTF8)); + return ret; + } + else + { + return CNode::getPrefix(); + } + } + + OUString SAL_CALL CAttr::getNamespaceURI() + { + ::osl::MutexGuard const g(m_rMutex); + + if (!m_aNodePtr) { return OUString(); } + + if (m_oNamespace) + { + OSL_ASSERT(!m_aNodePtr->parent); + OUString const ret(OStringToOUString( + m_oNamespace->first, RTL_TEXTENCODING_UTF8)); + return ret; + } + else + { + return CNode::getNamespaceURI(); + } + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |