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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 <node.hxx>
+
+#include <string.h>
+
+#include <libxml/xmlstring.h>
+
+#include <algorithm>
+
+#include <osl/mutex.hxx>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+
+#include <com/sun/star/xml/dom/DOMException.hpp>
+#include <com/sun/star/xml/dom/events/XMutationEvent.hpp>
+#include <com/sun/star/xml/sax/FastToken.hpp>
+
+#include <comphelper/servicehelper.hxx>
+
+#include "document.hxx"
+#include "attr.hxx"
+#include "childlist.hxx"
+
+#include <eventdispatcher.hxx>
+
+using namespace css;
+using namespace css::uno;
+using namespace css::xml::dom;
+using namespace css::xml::dom::events;
+using namespace css::xml::sax;
+
+namespace DOM
+{
+ void pushContext(Context& io_rContext)
+ {
+ // Explicitly use a temp. variable.
+ // Windows/VC++ seems to mess up if .back() is directly passed as
+ // parameter. i.e. Don't use push_back( .back() );
+ Context::NamespaceVectorType::value_type aVal = io_rContext.maNamespaces.back();
+ io_rContext.maNamespaces.push_back( aVal );
+ }
+
+ void popContext(Context& io_rContext)
+ {
+ io_rContext.maNamespaces.pop_back();
+ }
+
+ void addNamespaces(Context& io_rContext, xmlNodePtr pNode)
+ {
+ // add node's namespaces to current context
+ for (xmlNsPtr pNs = pNode->nsDef; pNs != nullptr; pNs = pNs->next) {
+ const xmlChar *pPrefix = pNs->prefix;
+ // prefix can be NULL when xmlns attribute is empty (xmlns="")
+ OString prefix(reinterpret_cast<const char*>(pPrefix),
+ pPrefix ? strlen(reinterpret_cast<const char*>(pPrefix)) : 0);
+ const xmlChar *pHref = pNs->href;
+ OUString val(reinterpret_cast<const char*>(pHref),
+ strlen(reinterpret_cast<const char*>(pHref)),
+ RTL_TEXTENCODING_UTF8);
+
+ Context::NamespaceMapType::iterator aIter=
+ io_rContext.maNamespaceMap.find(val);
+ if( aIter != io_rContext.maNamespaceMap.end() )
+ {
+ Context::Namespace aNS;
+ aNS.maPrefix = prefix;
+ aNS.mnToken = aIter->second;
+
+ io_rContext.maNamespaces.back().push_back(aNS);
+
+ SAL_INFO("unoxml", "Added with token " << aIter->second);
+ }
+ }
+ }
+
+ sal_Int32 getToken( const Context& rContext, const char* pToken )
+ {
+ const Sequence<sal_Int8> aSeq( reinterpret_cast<sal_Int8 const *>(pToken), strlen( pToken ) );
+ return rContext.mxTokenHandler->getTokenFromUTF8( aSeq );
+ }
+
+ sal_Int32 getTokenWithPrefix( const Context& rContext, const char* pPrefix, const char* pName )
+ {
+ sal_Int32 nNamespaceToken = FastToken::DONTKNOW;
+ OString prefix(pPrefix,
+ strlen(pPrefix));
+
+ SAL_INFO("unoxml", "getTokenWithPrefix(): prefix " << pPrefix << ", name " << pName);
+
+ Context::NamespaceVectorType::value_type::const_iterator aIter;
+ if( (aIter=std::find_if(rContext.maNamespaces.back().begin(),
+ rContext.maNamespaces.back().end(),
+ [&prefix](const Context::Namespace &aNamespace){ return aNamespace.getPrefix() == prefix; } )) !=
+ rContext.maNamespaces.back().end() )
+ {
+ nNamespaceToken = aIter->mnToken;
+ sal_Int32 nNameToken = getToken( rContext, pName );
+ if( nNameToken == FastToken::DONTKNOW )
+ nNamespaceToken = FastToken::DONTKNOW;
+ else
+ nNamespaceToken |= nNameToken;
+ }
+
+ return nNamespaceToken;
+ }
+
+
+ CNode::CNode(CDocument const& rDocument, ::osl::Mutex const& rMutex,
+ NodeType const& reNodeType, xmlNodePtr const& rpNode)
+ : m_bUnlinked(false)
+ , m_aNodeType(reNodeType)
+ , m_aNodePtr(rpNode)
+ // keep containing document alive
+ // (but not if this is a document; that would create a leak!)
+ , m_xDocument( (m_aNodePtr->type != XML_DOCUMENT_NODE)
+ ? &const_cast<CDocument&>(rDocument) : nullptr )
+ , m_rMutex(const_cast< ::osl::Mutex & >(rMutex))
+ {
+ OSL_ASSERT(m_aNodePtr);
+ }
+
+ void CNode::invalidate()
+ {
+ //remove from list if this wrapper goes away
+ if (m_aNodePtr != nullptr && m_xDocument.is()) {
+ m_xDocument->RemoveCNode(m_aNodePtr, this);
+ }
+ // #i113663#: unlinked nodes will not be freed by xmlFreeDoc
+ if (m_bUnlinked) {
+ xmlFreeNode(m_aNodePtr);
+ }
+ m_aNodePtr = nullptr;
+ }
+
+ CNode::~CNode()
+ {
+ // if this is the document itself, the mutex is already freed!
+ if (NodeType_DOCUMENT_NODE == m_aNodeType) {
+ invalidate();
+ } else {
+ ::osl::MutexGuard const g(m_rMutex);
+ invalidate(); // other nodes are still alive so must lock mutex
+ }
+ }
+
+ const css::uno::Sequence< sal_Int8 > & CNode::getUnoTunnelId() noexcept
+ {
+ static const comphelper::UnoIdInit theCNodeUnoTunnelId;
+ return theCNodeUnoTunnelId.getSeq();
+ }
+
+ CDocument & CNode::GetOwnerDocument()
+ {
+ OSL_ASSERT(m_xDocument.is());
+ return *m_xDocument; // needs overriding in CDocument!
+ }
+
+
+ static void lcl_nsexchange(
+ xmlNodePtr const aNode, xmlNsPtr const oldNs, xmlNsPtr const newNs)
+ {
+ // recursively exchange any references to oldNs with references to newNs
+ xmlNodePtr cur = aNode;
+ while (cur != nullptr)
+ {
+ if (cur->ns == oldNs)
+ cur->ns = newNs;
+ if (cur->type == XML_ELEMENT_NODE)
+ {
+ xmlAttrPtr curAttr = cur->properties;
+ while(curAttr != nullptr)
+ {
+ if (curAttr->ns == oldNs)
+ curAttr->ns = newNs;
+ curAttr = curAttr->next;
+ }
+ lcl_nsexchange(cur->children, oldNs, newNs);
+ }
+ cur = cur->next;
+ }
+ }
+
+ /*static*/ void nscleanup(const xmlNodePtr aNode, const xmlNodePtr aParent)
+ {
+ xmlNodePtr cur = aNode;
+
+ //handle attributes
+ if (cur != nullptr && cur->type == XML_ELEMENT_NODE)
+ {
+ xmlAttrPtr curAttr = cur->properties;
+ while(curAttr != nullptr)
+ {
+ if (curAttr->ns != nullptr)
+ {
+ xmlNsPtr ns = xmlSearchNs(cur->doc, aParent, curAttr->ns->prefix);
+ if (ns != nullptr)
+ curAttr->ns = ns;
+ }
+ curAttr = curAttr->next;
+ }
+ }
+
+ while (cur != nullptr)
+ {
+ nscleanup(cur->children, cur);
+ if (cur->ns != nullptr)
+ {
+ xmlNsPtr ns = xmlSearchNs(cur->doc, aParent, cur->ns->prefix);
+ if (ns != nullptr && ns != cur->ns && strcmp(reinterpret_cast<char const *>(ns->href), reinterpret_cast<char const *>(cur->ns->href))==0)
+ {
+ xmlNsPtr curDef = cur->nsDef;
+ xmlNsPtr *refp = &(cur->nsDef); // insert point
+ while (curDef != nullptr)
+ {
+ ns = xmlSearchNs(cur->doc, aParent, curDef->prefix);
+ if (ns != nullptr && ns != curDef && strcmp(reinterpret_cast<char const *>(ns->href), reinterpret_cast<char const *>(curDef->href))==0)
+ {
+ // reconnect ns pointers in sub-tree to newly found ns before
+ // removing redundant nsdecl to prevent dangling pointers.
+ lcl_nsexchange(cur, curDef, ns);
+ *refp = curDef->next;
+ xmlFreeNs(curDef);
+ curDef = *refp;
+ } else {
+ refp = &(curDef->next);
+ curDef = curDef->next;
+ }
+ }
+ }
+ }
+ cur = cur->next;
+ }
+ }
+
+ void CNode::saxify(const Reference< XDocumentHandler >& i_xHandler)
+ {
+ if (!i_xHandler.is()) throw RuntimeException();
+ // default: do nothing
+ }
+
+ void CNode::fastSaxify(Context& io_rContext)
+ {
+ if (!io_rContext.mxDocHandler.is()) throw RuntimeException();
+ // default: do nothing
+ }
+
+ bool CNode::IsChildTypeAllowed(NodeType const /*nodeType*/, NodeType const*const)
+ {
+ // default: no children allowed
+ return false;
+ }
+
+ /**
+ Adds the node newChild to the end of the list of children of this node.
+ */
+ Reference< XNode > SAL_CALL CNode::appendChild(
+ Reference< XNode > const& xNewChild)
+ {
+ ::osl::ClearableMutexGuard guard(m_rMutex);
+
+ if (nullptr == m_aNodePtr) { return nullptr; }
+
+ CNode *const pNewChild(comphelper::getFromUnoTunnel<CNode>(xNewChild));
+ if (!pNewChild) { throw RuntimeException(); }
+ xmlNodePtr const cur = pNewChild->GetNodePtr();
+ if (!cur) { throw RuntimeException(); }
+
+ // error checks:
+ // from other document
+ if (cur->doc != m_aNodePtr->doc) {
+ DOMException e;
+ e.Code = DOMExceptionType_WRONG_DOCUMENT_ERR;
+ throw e;
+ }
+ // same node
+ if (cur == m_aNodePtr) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+ if (cur->parent != nullptr) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+ if (!IsChildTypeAllowed(pNewChild->m_aNodeType, nullptr)) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ // check whether this is an attribute node; it needs special handling
+ xmlNodePtr res = nullptr;
+ if (cur->type == XML_ATTRIBUTE_NODE)
+ {
+ xmlChar const*const pChildren((cur->children)
+ ? cur->children->content
+ : reinterpret_cast<xmlChar const*>(""));
+ CAttr *const pCAttr(dynamic_cast<CAttr *>(pNewChild));
+ if (!pCAttr) { throw RuntimeException(); }
+ xmlNsPtr const pNs( pCAttr->GetNamespace(m_aNodePtr) );
+ if (pNs) {
+ res = reinterpret_cast<xmlNodePtr>(
+ xmlNewNsProp(m_aNodePtr, pNs, cur->name, pChildren));
+ } else {
+ res = reinterpret_cast<xmlNodePtr>(
+ xmlNewProp(m_aNodePtr, cur->name, pChildren));
+ }
+ }
+ else
+ {
+ res = xmlAddChild(m_aNodePtr, cur);
+
+ // libxml can do optimization when appending nodes.
+ // if res != cur, something was optimized and the newchild-wrapper
+ // should be updated
+ if (res && (cur != res)) {
+ pNewChild->invalidate(); // cur has been freed
+ }
+ }
+
+ if (!res) { return nullptr; }
+
+ // use custom ns cleanup instead of
+ // xmlReconciliateNs(m_aNodePtr->doc, m_aNodePtr);
+ // because that will not remove unneeded ns decls
+ nscleanup(res, m_aNodePtr);
+
+ ::rtl::Reference<CNode> const pNode = GetOwnerDocument().GetCNode(res);
+
+ if (!pNode.is()) { return nullptr; }
+
+ // dispatch DOMNodeInserted event, target is the new node
+ // this node is the related node
+ // does bubble
+ pNode->m_bUnlinked = false; // will be deleted by xmlFreeDoc
+ Reference< XDocumentEvent > docevent(getOwnerDocument(), UNO_QUERY);
+ Reference< XMutationEvent > event(docevent->createEvent(
+ "DOMNodeInserted"), UNO_QUERY);
+ event->initMutationEvent("DOMNodeInserted", true, false, this,
+ OUString(), OUString(), OUString(), AttrChangeType(0) );
+
+ // the following dispatch functions use only UNO interfaces
+ // and call event listeners, so release mutex to prevent deadlocks.
+ guard.clear();
+
+ dispatchEvent(event);
+ // dispatch subtree modified for this node
+ dispatchSubtreeModified();
+
+ return pNode;
+ }
+
+ /**
+ Returns a duplicate of this node, i.e., serves as a generic copy
+ constructor for nodes.
+ */
+ Reference< XNode > SAL_CALL CNode::cloneNode(sal_Bool bDeep)
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ ::rtl::Reference<CNode> const pNode = GetOwnerDocument().GetCNode(
+ xmlCopyNode(m_aNodePtr, bDeep ? 1 : 0));
+ if (!pNode.is()) { return nullptr; }
+ pNode->m_bUnlinked = true; // not linked yet
+ return pNode;
+ }
+
+ /**
+ A NamedNodeMap containing the attributes of this node (if it is an Element)
+ or null otherwise.
+ */
+ Reference< XNamedNodeMap > SAL_CALL CNode::getAttributes()
+ {
+ // return empty reference; only element node may override this impl
+ return Reference< XNamedNodeMap>();
+ }
+
+ /**
+ A NodeList that contains all children of this node.
+ */
+ Reference< XNodeList > SAL_CALL CNode::getChildNodes()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ Reference< XNodeList > const xNodeList(new CChildList(this, m_rMutex));
+ return xNodeList;
+ }
+
+ /**
+ The first child of this node.
+ */
+ Reference< XNode > SAL_CALL CNode::getFirstChild()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ return GetOwnerDocument().GetCNode(m_aNodePtr->children);
+ }
+
+ /**
+ The last child of this node.
+ */
+ Reference< XNode > SAL_CALL CNode::getLastChild()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ return GetOwnerDocument().GetCNode(xmlGetLastChild(m_aNodePtr));
+ }
+
+ /**
+ Returns the local part of the qualified name of this node.
+ */
+ OUString SAL_CALL CNode::getLocalName()
+ {
+ // see CElement/CAttr
+ return OUString();
+ }
+
+
+ /**
+ The namespace URI of this node, or null if it is unspecified.
+ */
+ OUString SAL_CALL CNode::getNamespaceURI()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ OUString aURI;
+ if (m_aNodePtr != nullptr &&
+ (m_aNodePtr->type == XML_ELEMENT_NODE || m_aNodePtr->type == XML_ATTRIBUTE_NODE) &&
+ m_aNodePtr->ns != nullptr)
+ {
+ const xmlChar* pHref = m_aNodePtr->ns->href;
+ aURI = OUString(reinterpret_cast<char const *>(pHref), strlen(reinterpret_cast<char const *>(pHref)), RTL_TEXTENCODING_UTF8);
+ }
+ return aURI;
+ }
+
+ /**
+ The node immediately following this node.
+ */
+ Reference< XNode > SAL_CALL CNode::getNextSibling()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ return GetOwnerDocument().GetCNode(m_aNodePtr->next);
+ }
+
+ /**
+ The name of this node, depending on its type; see the table above.
+ */
+ OUString SAL_CALL CNode::getNodeName()
+ {
+ /*
+ Interface nodeName nodeValue attributes
+ --------------------------------------------------------------------------------------
+ Attr name of attribute value of attribute null
+ CDATASection "#cdata-section" content of the CDATA Section null
+ Comment "#comment" content of the comment null
+ Document "#document" null null
+ DocumentFragment "#document-fragment" null null
+ DocumentType document type name null null
+ Element tag name null NamedNodeMap
+ Entity entity name null null
+ EntityReference name of entity null null
+ referenced
+ Notation notation name null null
+ Processing\ target entire content excluding null
+ Instruction the target
+ Text "#text" content of the text node null
+ */
+ return OUString();
+ }
+
+ /**
+ A code representing the type of the underlying object, as defined above.
+ */
+ NodeType SAL_CALL CNode::getNodeType()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ return m_aNodeType;
+ }
+
+ /**
+ The value of this node, depending on its type; see the table above.
+ */
+ OUString SAL_CALL CNode::getNodeValue()
+ {
+ return OUString();
+ }
+
+ /**
+ The Document object associated with this node.
+ */
+ Reference< XDocument > SAL_CALL CNode::getOwnerDocument()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ Reference< XDocument > const xDoc(& GetOwnerDocument());
+ return xDoc;
+ }
+
+ /**
+ The parent of this node.
+ */
+ Reference< XNode > SAL_CALL CNode::getParentNode()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ return GetOwnerDocument().GetCNode(m_aNodePtr->parent);
+ }
+
+ /**
+ The namespace prefix of this node, or null if it is unspecified.
+ */
+ OUString SAL_CALL CNode::getPrefix()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ OUString aPrefix;
+ if (m_aNodePtr != nullptr &&
+ (m_aNodePtr->type == XML_ELEMENT_NODE || m_aNodePtr->type == XML_ATTRIBUTE_NODE) &&
+ m_aNodePtr->ns != nullptr)
+ {
+ const xmlChar* pPrefix = m_aNodePtr->ns->prefix;
+ if( pPrefix != nullptr )
+ aPrefix = OUString(reinterpret_cast<char const *>(pPrefix), strlen(reinterpret_cast<char const *>(pPrefix)), RTL_TEXTENCODING_UTF8);
+ }
+ return aPrefix;
+
+ }
+
+ /**
+ The node immediately preceding this node.
+ */
+ Reference< XNode > SAL_CALL CNode::getPreviousSibling()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if (nullptr == m_aNodePtr) {
+ return nullptr;
+ }
+ return GetOwnerDocument().GetCNode(m_aNodePtr->prev);
+ }
+
+ /**
+ Returns whether this node (if it is an element) has any attributes.
+ */
+ sal_Bool SAL_CALL CNode::hasAttributes()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ return (m_aNodePtr != nullptr && m_aNodePtr->properties != nullptr);
+ }
+
+ /**
+ Returns whether this node has any children.
+ */
+ sal_Bool SAL_CALL CNode::hasChildNodes()
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ return (m_aNodePtr != nullptr && m_aNodePtr->children != nullptr);
+ }
+
+ /**
+ Inserts the node newChild before the existing child node refChild.
+ */
+ Reference< XNode > SAL_CALL CNode::insertBefore(
+ const Reference< XNode >& newChild, const Reference< XNode >& refChild)
+ {
+ if (!newChild.is() || !refChild.is()) { throw RuntimeException(); }
+
+ if (newChild->getOwnerDocument() != getOwnerDocument()) {
+ DOMException e;
+ e.Code = DOMExceptionType_WRONG_DOCUMENT_ERR;
+ throw e;
+ }
+ if (refChild->getParentNode() != Reference< XNode >(this)) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ ::osl::ClearableMutexGuard guard(m_rMutex);
+
+ CNode *const pNewNode(comphelper::getFromUnoTunnel<CNode>(newChild));
+ CNode *const pRefNode(comphelper::getFromUnoTunnel<CNode>(refChild));
+ if (!pNewNode || !pRefNode) { throw RuntimeException(); }
+ xmlNodePtr const pNewChild(pNewNode->GetNodePtr());
+ xmlNodePtr const pRefChild(pRefNode->GetNodePtr());
+ if (!pNewChild || !pRefChild) { throw RuntimeException(); }
+
+ if (pNewChild == m_aNodePtr) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+ // already has parent
+ if (pNewChild->parent != nullptr)
+ {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+ if (!IsChildTypeAllowed(pNewNode->m_aNodeType, nullptr)) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ // attributes are unordered anyway, so just do appendChild
+ if (XML_ATTRIBUTE_NODE == pNewChild->type) {
+ guard.clear();
+ return appendChild(newChild);
+ }
+
+ xmlNodePtr cur = m_aNodePtr->children;
+
+ //search child before which to insert
+ while (cur != nullptr)
+ {
+ if (cur == pRefChild) {
+ // insert before
+ pNewChild->next = cur;
+ pNewChild->prev = cur->prev;
+ cur->prev = pNewChild;
+ if (pNewChild->prev != nullptr) {
+ pNewChild->prev->next = pNewChild;
+ }
+ pNewChild->parent = cur->parent;
+ if (pNewChild->parent->children == cur) {
+ pNewChild->parent->children = pNewChild;
+ }
+ // do not update parent->last here!
+ pNewNode->m_bUnlinked = false; // will be deleted by xmlFreeDoc
+ break;
+ }
+ cur = cur->next;
+ }
+ return refChild;
+ }
+
+ /**
+ Tests whether the DOM implementation implements a specific feature and
+ that feature is supported by this node.
+ */
+ sal_Bool SAL_CALL CNode::isSupported(const OUString& /*feature*/, const OUString& /*ver*/)
+ {
+ OSL_ENSURE(false, "CNode::isSupported: not implemented (#i113683#)");
+ return false;
+ }
+
+ /**
+ Puts all Text nodes in the full depth of the sub-tree underneath this
+ Node, including attribute nodes, into a "normal" form where only structure
+ (e.g., elements, comments, processing instructions, CDATA sections, and
+ entity references) separates Text nodes, i.e., there are neither adjacent
+ Text nodes nor empty Text nodes.
+ */
+ void SAL_CALL CNode::normalize()
+ {
+ //XXX combine adjacent text nodes and remove empty ones
+ OSL_ENSURE(false, "CNode::normalize: not implemented (#i113683#)");
+ }
+
+ /**
+ Removes the child node indicated by oldChild from the list of children,
+ and returns it.
+ */
+ Reference< XNode > SAL_CALL
+ CNode::removeChild(const Reference< XNode >& xOldChild)
+ {
+ if (!xOldChild.is()) {
+ throw RuntimeException();
+ }
+
+ if (xOldChild->getOwnerDocument() != getOwnerDocument()) {
+ DOMException e;
+ e.Code = DOMExceptionType_WRONG_DOCUMENT_ERR;
+ throw e;
+ }
+ if (xOldChild->getParentNode() != Reference< XNode >(this)) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ ::osl::ClearableMutexGuard guard(m_rMutex);
+
+ if (!m_aNodePtr) { throw RuntimeException(); }
+
+ Reference<XNode> xReturn( xOldChild );
+
+ ::rtl::Reference<CNode> const pOld(comphelper::getFromUnoTunnel<CNode>(xOldChild));
+ if (!pOld.is()) { throw RuntimeException(); }
+ xmlNodePtr const old = pOld->GetNodePtr();
+ if (!old) { throw RuntimeException(); }
+
+ if( old->type == XML_ATTRIBUTE_NODE )
+ {
+ xmlAttrPtr pAttr = reinterpret_cast<xmlAttrPtr>(old);
+ xmlRemoveProp( pAttr );
+ pOld->invalidate(); // freed by xmlRemoveProp
+ xReturn.clear();
+ }
+ else
+ {
+ xmlUnlinkNode(old);
+ pOld->m_bUnlinked = true;
+ }
+
+ /*DOMNodeRemoved
+ * Fired when a node is being removed from its parent node.
+ * This event is dispatched before the node is removed from the tree.
+ * The target of this event is the node being removed.
+ * Bubbles: Yes
+ * Cancelable: No
+ * Context Info: relatedNode holds the parent node
+ */
+ Reference< XDocumentEvent > docevent(getOwnerDocument(), UNO_QUERY);
+ Reference< XMutationEvent > event(docevent->createEvent(
+ "DOMNodeRemoved"), UNO_QUERY);
+ event->initMutationEvent("DOMNodeRemoved",
+ true,
+ false,
+ this,
+ OUString(), OUString(), OUString(), AttrChangeType(0) );
+
+ // the following dispatch functions use only UNO interfaces
+ // and call event listeners, so release mutex to prevent deadlocks.
+ guard.clear();
+
+ dispatchEvent(event);
+ // subtree modified for this node
+ dispatchSubtreeModified();
+
+ return xReturn;
+ }
+
+ /**
+ Replaces the child node oldChild with newChild in the list of children,
+ and returns the oldChild node.
+ */
+ Reference< XNode > SAL_CALL CNode::replaceChild(
+ Reference< XNode > const& xNewChild,
+ Reference< XNode > const& xOldChild)
+ {
+ if (!xOldChild.is() || !xNewChild.is()) {
+ throw RuntimeException();
+ }
+
+ if (xNewChild->getOwnerDocument() != getOwnerDocument()) {
+ DOMException e;
+ e.Code = DOMExceptionType_WRONG_DOCUMENT_ERR;
+ throw e;
+ }
+ if (xOldChild->getParentNode() != Reference< XNode >(this)) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ ::osl::ClearableMutexGuard guard(m_rMutex);
+
+ ::rtl::Reference<CNode> const pOldNode(
+ comphelper::getFromUnoTunnel<CNode>(xOldChild));
+ ::rtl::Reference<CNode> const pNewNode(
+ comphelper::getFromUnoTunnel<CNode>(xNewChild));
+ if (!pOldNode.is() || !pNewNode.is()) { throw RuntimeException(); }
+ xmlNodePtr const pOld = pOldNode->GetNodePtr();
+ xmlNodePtr const pNew = pNewNode->GetNodePtr();
+ if (!pOld || !pNew) { throw RuntimeException(); }
+
+ if (pNew == m_aNodePtr) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+ // already has parent
+ if (pNew->parent != nullptr) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+ if (!IsChildTypeAllowed(pNewNode->m_aNodeType, &pOldNode->m_aNodeType)) {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ if( pOld->type == XML_ATTRIBUTE_NODE )
+ {
+ // can only replace attribute with attribute
+ if ( pOld->type != pNew->type )
+ {
+ DOMException e;
+ e.Code = DOMExceptionType_HIERARCHY_REQUEST_ERR;
+ throw e;
+ }
+
+ xmlAttrPtr pAttr = reinterpret_cast<xmlAttrPtr>(pOld);
+ xmlRemoveProp( pAttr );
+ pOldNode->invalidate(); // freed by xmlRemoveProp
+ appendChild(xNewChild);
+ }
+ else
+ {
+
+ xmlNodePtr cur = m_aNodePtr->children;
+ //find old node in child list
+ while (cur != nullptr)
+ {
+ if(cur == pOld)
+ {
+ // exchange nodes
+ pNew->prev = pOld->prev;
+ if (pNew->prev != nullptr)
+ pNew->prev->next = pNew;
+ pNew->next = pOld->next;
+ if (pNew->next != nullptr)
+ pNew->next->prev = pNew;
+ pNew->parent = pOld->parent;
+ assert(pNew->parent && "coverity[var_deref_op] pNew->parent cannot be NULL here");
+ if(pNew->parent->children == pOld)
+ pNew->parent->children = pNew;
+ if(pNew->parent->last == pOld)
+ pNew->parent->last = pNew;
+ pOld->next = nullptr;
+ pOld->prev = nullptr;
+ pOld->parent = nullptr;
+ pOldNode->m_bUnlinked = true;
+ pNewNode->m_bUnlinked = false; // will be deleted by xmlFreeDoc
+ }
+ cur = cur->next;
+ }
+ }
+
+ guard.clear(); // release for calling event handlers
+ dispatchSubtreeModified();
+
+ return xOldChild;
+ }
+
+ void CNode::dispatchSubtreeModified()
+ {
+ // only uses UNO interfaces => needs no mutex
+
+ // dispatch DOMSubtreeModified
+ // target is _this_ node
+ Reference< XDocumentEvent > docevent(getOwnerDocument(), UNO_QUERY);
+ Reference< XMutationEvent > event(docevent->createEvent(
+ "DOMSubtreeModified"), UNO_QUERY);
+ event->initMutationEvent(
+ "DOMSubtreeModified", true,
+ false, Reference< XNode >(),
+ OUString(), OUString(), OUString(), AttrChangeType(0) );
+ dispatchEvent(event);
+ }
+
+ /**
+ The value of this node, depending on its type; see the table above.
+ */
+ void SAL_CALL CNode::setNodeValue(const OUString& /*nodeValue*/)
+ {
+ // use specific node implementation
+ // if we end up down here, something went wrong
+ DOMException e;
+ e.Code = DOMExceptionType_NO_MODIFICATION_ALLOWED_ERR;
+ throw e;
+ }
+
+ /**
+ The namespace prefix of this node, or null if it is unspecified.
+ */
+ void SAL_CALL CNode::setPrefix(const OUString& prefix)
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ if ((nullptr == m_aNodePtr) ||
+ ((m_aNodePtr->type != XML_ELEMENT_NODE) &&
+ (m_aNodePtr->type != XML_ATTRIBUTE_NODE)))
+ {
+ DOMException e;
+ e.Code = DOMExceptionType_NO_MODIFICATION_ALLOWED_ERR;
+ throw e;
+ }
+ OString o1 = OUStringToOString(prefix, RTL_TEXTENCODING_UTF8);
+ xmlChar const *pBuf = reinterpret_cast<xmlChar const *>(o1.getStr());
+ if (m_aNodePtr != nullptr && m_aNodePtr->ns != nullptr)
+ {
+ xmlFree(const_cast<xmlChar *>(m_aNodePtr->ns->prefix));
+ m_aNodePtr->ns->prefix = xmlStrdup(pBuf);
+ }
+
+ }
+
+ // --- XEventTarget
+ void SAL_CALL CNode::addEventListener(const OUString& eventType,
+ const Reference< css::xml::dom::events::XEventListener >& listener,
+ sal_Bool useCapture)
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ CDocument & rDocument(GetOwnerDocument());
+ events::CEventDispatcher & rDispatcher(rDocument.GetEventDispatcher());
+ rDispatcher.addListener(m_aNodePtr, eventType, listener, useCapture);
+ }
+
+ void SAL_CALL CNode::removeEventListener(const OUString& eventType,
+ const Reference< css::xml::dom::events::XEventListener >& listener,
+ sal_Bool useCapture)
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ CDocument & rDocument(GetOwnerDocument());
+ events::CEventDispatcher & rDispatcher(rDocument.GetEventDispatcher());
+ rDispatcher.removeListener(m_aNodePtr, eventType, listener, useCapture);
+ }
+
+ sal_Bool SAL_CALL CNode::dispatchEvent(const Reference< XEvent >& evt)
+ {
+ CDocument * pDocument;
+ events::CEventDispatcher * pDispatcher;
+ xmlNodePtr pNode;
+ {
+ ::osl::MutexGuard const g(m_rMutex);
+
+ pDocument = & GetOwnerDocument();
+ pDispatcher = & pDocument->GetEventDispatcher();
+ pNode = m_aNodePtr;
+ }
+ // this calls event listeners, do not call with locked mutex
+ pDispatcher->dispatchEvent(*pDocument, m_rMutex, pNode, this, evt);
+ return true;
+ }
+
+ ::sal_Int64 SAL_CALL
+ CNode::getSomething(Sequence< ::sal_Int8 > const& rId)
+ {
+ return comphelper::getSomethingImpl(rId, this);
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */