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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 "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: */