office-gobmx/unoxml/source/dom/node.cxx
Noel 9bd8272706 loplugin:referencecasting in UnoControls..unoxml
Change-Id: I42f216b6115be693a4e57d70f6cbbf11b62ec185
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/110998
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2021-02-16 20:17:39 +01:00

994 lines
33 KiB
C++

/* -*- 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 <rtl/instance.hxx>
#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
{
class theCNodeUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theCNodeUnoTunnelId > {};
}
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(reinterpret_cast<const char*>(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() throw()
{
return theCNodeUnoTunnelId::get().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*/)
{
// 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::getUnoTunnelImplementation<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)) {
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::getUnoTunnelImplementation<CNode>(newChild));
CNode *const pRefNode(comphelper::getUnoTunnelImplementation<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)) {
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::getUnoTunnelImplementation<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::getUnoTunnelImplementation<CNode>(xOldChild));
::rtl::Reference<CNode> const pNewNode(
comphelper::getUnoTunnelImplementation<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)) {
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)
{
if (isUnoTunnelId<CNode>(rId))
{
return ::sal::static_int_cast< sal_Int64 >(
reinterpret_cast< sal_IntPtr >(this) );
}
return 0;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */