sippeangelo
332 lines
15 KiB
C++
332 lines
15 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: DOMTextImpl.cpp 1027995 2010-10-27 15:09:39Z amassari $
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*/
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#include <xercesc/util/XMLUniDefs.hpp>
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#include <xercesc/dom/DOMException.hpp>
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#include <xercesc/dom/DOMNode.hpp>
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#include <xercesc/dom/DOMElement.hpp>
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#include <xercesc/dom/DOMCDATASection.hpp>
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#include <xercesc/dom/DOMNodeFilter.hpp>
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#include <xercesc/dom/DOMTreeWalker.hpp>
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#include "DOMDocumentImpl.hpp"
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#include "DOMStringPool.hpp"
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#include "DOMTextImpl.hpp"
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#include "DOMCharacterDataImpl.hpp"
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#include "DOMChildNode.hpp"
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#include "DOMRangeImpl.hpp"
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#include "DOMCasts.hpp"
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#include <assert.h>
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XERCES_CPP_NAMESPACE_BEGIN
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class DOMDocument;
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DOMTextImpl::DOMTextImpl(DOMDocument *ownerDoc, const XMLCh *dat)
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: fNode(ownerDoc), fCharacterData(ownerDoc, dat)
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{
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fNode.setIsLeafNode(true);
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}
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DOMTextImpl::
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DOMTextImpl(DOMDocument *ownerDoc, const XMLCh* dat, XMLSize_t n)
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: fNode(ownerDoc), fCharacterData(ownerDoc, dat, n)
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{
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fNode.setIsLeafNode(true);
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}
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DOMTextImpl::DOMTextImpl(const DOMTextImpl &other, bool)
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: DOMText(other)
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, fNode(other.fNode)
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, fCharacterData(other.fCharacterData)
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{
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fNode.setIsLeafNode(true);
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}
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DOMTextImpl::~DOMTextImpl()
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{
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}
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DOMNode *DOMTextImpl::cloneNode(bool deep) const
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{
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DOMNode* newNode = new (getOwnerDocument(), DOMMemoryManager::TEXT_OBJECT) DOMTextImpl(*this, deep);
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fNode.callUserDataHandlers(DOMUserDataHandler::NODE_CLONED, this, newNode);
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return newNode;
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}
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const XMLCh * DOMTextImpl::getNodeName() const {
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static const XMLCh gtext[] = {chPound, chLatin_t, chLatin_e, chLatin_x, chLatin_t, chNull};
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return gtext;
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}
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DOMNode::NodeType DOMTextImpl::getNodeType() const {
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return DOMNode::TEXT_NODE;
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}
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DOMText *DOMTextImpl::splitText(XMLSize_t offset)
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{
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if (fNode.isReadOnly())
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{
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throw DOMException(
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DOMException::NO_MODIFICATION_ALLOWED_ERR, 0, GetDOMNodeMemoryManager);
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}
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XMLSize_t len = fCharacterData.fDataBuf->getLen();
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if (offset > len)
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throw DOMException(DOMException::INDEX_SIZE_ERR, 0, GetDOMNodeMemoryManager);
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DOMDocumentImpl *doc = (DOMDocumentImpl *)getOwnerDocument();
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DOMText *newText = doc->createTextNode(
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this->substringData(offset, len - offset));
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DOMNode *parent = getParentNode();
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if (parent != 0)
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parent->insertBefore(newText, getNextSibling());
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fCharacterData.fDataBuf->chop(offset);
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if (doc != 0) {
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Ranges* ranges = doc->getRanges();
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if (ranges != 0) {
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XMLSize_t sz = ranges->size();
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if (sz != 0) {
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for (XMLSize_t i =0; i<sz; i++) {
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ranges->elementAt(i)->updateSplitInfo( this, newText, offset);
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}
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}
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}
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}
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return newText;
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}
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bool DOMTextImpl::isIgnorableWhitespace() const
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{
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return fNode.ignorableWhitespace();
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}
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void DOMTextImpl::setIgnorableWhitespace(bool ignorable)
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{
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fNode.ignorableWhitespace(ignorable);
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}
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bool DOMTextImpl::getIsElementContentWhitespace() const
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{
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return isIgnorableWhitespace();
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}
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const XMLCh* DOMTextImpl::getWholeText() const
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{
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DOMDocument *doc = getOwnerDocument();
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if (!doc) {
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throw DOMException(DOMException::NOT_SUPPORTED_ERR, 0, GetDOMNodeMemoryManager);
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return 0;
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}
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DOMNode* root=doc->getDocumentElement();
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DOMTreeWalker* pWalker=doc->createTreeWalker(root!=NULL?root:(DOMNode*)this, DOMNodeFilter::SHOW_ALL, NULL, true);
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pWalker->setCurrentNode((DOMNode*)this);
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// Logically-adjacent text nodes are Text or CDATASection nodes that can be visited sequentially in document order or in
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// reversed document order without entering, exiting, or passing over Element, Comment, or ProcessingInstruction nodes.
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DOMNode* prevNode;
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while((prevNode=pWalker->previousNode())!=NULL)
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{
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if(prevNode->getNodeType()==ELEMENT_NODE || prevNode->getNodeType()==COMMENT_NODE || prevNode->getNodeType()==PROCESSING_INSTRUCTION_NODE)
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break;
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}
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XMLBuffer buff(1023, GetDOMNodeMemoryManager);
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DOMNode* nextNode;
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while((nextNode=pWalker->nextNode())!=NULL)
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{
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if(nextNode->getNodeType()==ELEMENT_NODE || nextNode->getNodeType()==COMMENT_NODE || nextNode->getNodeType()==PROCESSING_INSTRUCTION_NODE)
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break;
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if(nextNode->getNodeType()==TEXT_NODE || nextNode->getNodeType()==CDATA_SECTION_NODE)
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buff.append(nextNode->getNodeValue());
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}
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pWalker->release();
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XMLCh* wholeString = (XMLCh*)((DOMDocumentImpl*)doc)->allocate((buff.getLen()+1) * sizeof(XMLCh));
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XMLString::copyString(wholeString, buff.getRawBuffer());
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return wholeString;
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}
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DOMText* DOMTextImpl::replaceWholeText(const XMLCh* newText)
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{
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DOMDocument *doc = getOwnerDocument();
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DOMTreeWalker* pWalker=doc->createTreeWalker(doc->getDocumentElement(), DOMNodeFilter::SHOW_ALL, NULL, true);
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pWalker->setCurrentNode((DOMNode*)this);
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// Logically-adjacent text nodes are Text or CDATASection nodes that can be visited sequentially in document order or in
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// reversed document order without entering, exiting, or passing over Element, Comment, or ProcessingInstruction nodes.
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DOMNode* pFirstTextNode=this;
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DOMNode* prevNode;
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while((prevNode=pWalker->previousNode())!=NULL)
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{
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if(prevNode->getNodeType()==ELEMENT_NODE || prevNode->getNodeType()==COMMENT_NODE || prevNode->getNodeType()==PROCESSING_INSTRUCTION_NODE)
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break;
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pFirstTextNode=prevNode;
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}
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// before doing any change we need to check if we are going to remove an entity reference that doesn't contain just text
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DOMNode* pCurrentNode=pWalker->getCurrentNode();
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DOMNode* nextNode;
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while((nextNode=pWalker->nextNode())!=NULL)
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{
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if(nextNode->getNodeType()==ELEMENT_NODE || nextNode->getNodeType()==COMMENT_NODE || nextNode->getNodeType()==PROCESSING_INSTRUCTION_NODE)
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break;
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if(nextNode->getNodeType()==ENTITY_REFERENCE_NODE)
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{
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DOMTreeWalker* pInnerWalker=doc->createTreeWalker(nextNode, DOMNodeFilter::SHOW_ALL, NULL, true);
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while(pInnerWalker->nextNode())
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{
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short nodeType=pInnerWalker->getCurrentNode()->getNodeType();
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if(nodeType!=ENTITY_REFERENCE_NODE && nodeType!=TEXT_NODE && nodeType!=CDATA_SECTION_NODE)
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throw DOMException(DOMException::NO_MODIFICATION_ALLOWED_ERR, 0, GetDOMNodeMemoryManager);
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}
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pInnerWalker->release();
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}
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}
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DOMText* retVal=NULL;
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// if the first node in the chain is a text node, replace its content, otherwise create a new node
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if(newText && *newText)
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{
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if(!castToNodeImpl(pFirstTextNode)->isReadOnly() && (pFirstTextNode->getNodeType()==TEXT_NODE || pFirstTextNode->getNodeType()==CDATA_SECTION_NODE))
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{
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pFirstTextNode->setNodeValue(newText);
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retVal=(DOMText*)pFirstTextNode;
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}
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else
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{
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if(getNodeType()==TEXT_NODE)
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retVal=doc->createTextNode(newText);
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else
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retVal=doc->createCDATASection(newText);
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pFirstTextNode->getParentNode()->insertBefore(retVal, pFirstTextNode);
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}
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}
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// now delete all the following text nodes
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pWalker->setCurrentNode(pCurrentNode);
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while((nextNode=pWalker->nextNode())!=NULL)
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{
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if(nextNode->getNodeType()==ELEMENT_NODE || nextNode->getNodeType()==COMMENT_NODE || nextNode->getNodeType()==PROCESSING_INSTRUCTION_NODE)
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break;
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if(nextNode!=retVal)
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{
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// keep the tree walker valid
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pWalker->previousNode();
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nextNode->getParentNode()->removeChild(nextNode);
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nextNode->release();
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}
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}
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pWalker->release();
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return retVal;
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}
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void DOMTextImpl::release()
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{
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if (fNode.isOwned() && !fNode.isToBeReleased())
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throw DOMException(DOMException::INVALID_ACCESS_ERR,0, GetDOMNodeMemoryManager);
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DOMDocumentImpl* doc = (DOMDocumentImpl*) getOwnerDocument();
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if (doc) {
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fNode.callUserDataHandlers(DOMUserDataHandler::NODE_DELETED, 0, 0);
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fCharacterData.releaseBuffer();
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doc->release(this, DOMMemoryManager::TEXT_OBJECT);
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}
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else {
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// shouldn't reach here
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throw DOMException(DOMException::INVALID_ACCESS_ERR,0, GetDOMNodeMemoryManager);
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}
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}
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//
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// Delegation functions
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//
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DOMNode* DOMTextImpl::appendChild(DOMNode *newChild) {return fNode.appendChild (newChild); }
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DOMNamedNodeMap* DOMTextImpl::getAttributes() const {return fNode.getAttributes (); }
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DOMNodeList* DOMTextImpl::getChildNodes() const {return fNode.getChildNodes (); }
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DOMNode* DOMTextImpl::getFirstChild() const {return fNode.getFirstChild (); }
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DOMNode* DOMTextImpl::getLastChild() const {return fNode.getLastChild (); }
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const XMLCh* DOMTextImpl::getLocalName() const {return fNode.getLocalName (); }
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const XMLCh* DOMTextImpl::getNamespaceURI() const {return fNode.getNamespaceURI (); }
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DOMNode* DOMTextImpl::getNextSibling() const {return fChild.getNextSibling (); }
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const XMLCh* DOMTextImpl::getNodeValue() const {return fCharacterData.getNodeValue (); }
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DOMDocument* DOMTextImpl::getOwnerDocument() const {return fNode.getOwnerDocument (); }
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const XMLCh* DOMTextImpl::getPrefix() const {return fNode.getPrefix (); }
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DOMNode* DOMTextImpl::getParentNode() const {return fChild.getParentNode (this); }
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DOMNode* DOMTextImpl::getPreviousSibling() const {return fChild.getPreviousSibling (this); }
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bool DOMTextImpl::hasChildNodes() const {return fNode.hasChildNodes (); }
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DOMNode* DOMTextImpl::insertBefore(DOMNode *newChild, DOMNode *refChild)
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{return fNode.insertBefore (newChild, refChild); }
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void DOMTextImpl::normalize() {fNode.normalize (); }
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DOMNode* DOMTextImpl::removeChild(DOMNode *oldChild) {return fNode.removeChild (oldChild); }
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DOMNode* DOMTextImpl::replaceChild(DOMNode *newChild, DOMNode *oldChild)
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{return fNode.replaceChild (newChild, oldChild); }
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bool DOMTextImpl::isSupported(const XMLCh *feature, const XMLCh *version) const
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{return fNode.isSupported (feature, version); }
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void DOMTextImpl::setPrefix(const XMLCh *prefix) {fNode.setPrefix(prefix); }
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bool DOMTextImpl::hasAttributes() const {return fNode.hasAttributes(); }
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bool DOMTextImpl::isSameNode(const DOMNode* other) const {return fNode.isSameNode(other); }
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bool DOMTextImpl::isEqualNode(const DOMNode* arg) const {return fNode.isEqualNode(arg); }
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void* DOMTextImpl::setUserData(const XMLCh* key, void* data, DOMUserDataHandler* handler)
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{return fNode.setUserData(key, data, handler); }
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void* DOMTextImpl::getUserData(const XMLCh* key) const {return fNode.getUserData(key); }
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const XMLCh* DOMTextImpl::getBaseURI() const {return fNode.getBaseURI(); }
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short DOMTextImpl::compareDocumentPosition(const DOMNode* other) const {return fNode.compareDocumentPosition(other); }
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const XMLCh* DOMTextImpl::getTextContent() const {return fNode.getTextContent(); }
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void DOMTextImpl::setTextContent(const XMLCh* textContent){fNode.setTextContent(textContent); }
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const XMLCh* DOMTextImpl::lookupPrefix(const XMLCh* namespaceURI) const {return fNode.lookupPrefix(namespaceURI); }
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bool DOMTextImpl::isDefaultNamespace(const XMLCh* namespaceURI) const {return fNode.isDefaultNamespace(namespaceURI); }
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const XMLCh* DOMTextImpl::lookupNamespaceURI(const XMLCh* prefix) const {return fNode.lookupNamespaceURI(prefix); }
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void* DOMTextImpl::getFeature(const XMLCh* feature, const XMLCh* version) const {return fNode.getFeature(feature, version); }
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//
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// Delegation of CharacerData functions.
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//
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const XMLCh* DOMTextImpl::getData() const {return fCharacterData.getData();}
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XMLSize_t DOMTextImpl::getLength() const {return fCharacterData.getLength();}
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const XMLCh* DOMTextImpl::substringData(XMLSize_t offset, XMLSize_t count) const
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{return fCharacterData.substringData(this, offset, count);}
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void DOMTextImpl::appendData(const XMLCh *arg) {fCharacterData.appendData(this, arg);}
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void DOMTextImpl::insertData(XMLSize_t offset, const XMLCh *arg)
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{fCharacterData.insertData(this, offset, arg);}
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void DOMTextImpl::deleteData(XMLSize_t offset, XMLSize_t count)
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{fCharacterData.deleteData(this, offset, count);}
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void DOMTextImpl::replaceData(XMLSize_t offset, XMLSize_t count, const XMLCh *arg)
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{fCharacterData.replaceData(this, offset, count, arg);}
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void DOMTextImpl::setData(const XMLCh *data) {fCharacterData.setData(this, data);}
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void DOMTextImpl::setNodeValue(const XMLCh *nodeValue) {fCharacterData.setNodeValue (this, nodeValue); }
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void DOMTextImpl::appendData(const XMLCh *arg, XMLSize_t n) {fCharacterData.appendData(this, arg, n);}
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XERCES_CPP_NAMESPACE_END
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