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https://github.com/pocoproject/poco.git
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new trunk (base for 1.5)
windows build only
This commit is contained in:
Aleksandar Fabijanic
466
XML/src/Element.cpp
Normal file
466
XML/src/Element.cpp
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//
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// Element.cpp
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//
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// $Id: //poco/1.4/XML/src/Element.cpp#2 $
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//
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// Library: XML
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// Package: DOM
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// Module: DOM
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/DOM/Element.h"
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#include "Poco/DOM/Document.h"
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#include "Poco/DOM/Attr.h"
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#include "Poco/DOM/DOMException.h"
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#include "Poco/DOM/ElementsByTagNameList.h"
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#include "Poco/DOM/Text.h"
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#include "Poco/DOM/AttrMap.h"
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namespace Poco {
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namespace XML {
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Element::Element(Document* pOwnerDocument, const XMLString& namespaceURI, const XMLString& localName, const XMLString& qname):
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AbstractContainerNode(pOwnerDocument),
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_name(pOwnerDocument->namePool().insert(qname, namespaceURI, localName)),
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_pFirstAttr(0)
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{
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}
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Element::Element(Document* pOwnerDocument, const Element& element):
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AbstractContainerNode(pOwnerDocument, element),
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_name(pOwnerDocument->namePool().insert(element._name)),
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_pFirstAttr(0)
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{
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Attr* pAttr = element._pFirstAttr;
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while (pAttr)
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{
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Attr* pClonedAttr = static_cast<Attr*>(pAttr->copyNode(false, pOwnerDocument));
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setAttributeNode(pClonedAttr);
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pClonedAttr->release();
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pAttr = static_cast<Attr*>(pAttr->_pNext);
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}
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}
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Element::~Element()
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{
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if (_pFirstAttr) _pFirstAttr->release();
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}
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const XMLString& Element::getAttribute(const XMLString& name) const
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{
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Attr* pAttr = getAttributeNode(name);
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if (pAttr)
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return pAttr->getValue();
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else
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return EMPTY_STRING;
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}
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void Element::setAttribute(const XMLString& name, const XMLString& value)
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{
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Attr* pAttr = getAttributeNode(name);
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if (pAttr)
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{
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pAttr->setValue(value);
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}
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else
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{
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pAttr = ownerDocument()->createAttribute(name);
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pAttr->setValue(value);
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setAttributeNode(pAttr);
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pAttr->release();
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}
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}
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void Element::removeAttribute(const XMLString& name)
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{
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Attr* pAttr = getAttributeNode(name);
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if (pAttr) removeAttributeNode(pAttr);
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}
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Attr* Element::getAttributeNode(const XMLString& name) const
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{
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Attr* pAttr = _pFirstAttr;
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while (pAttr && pAttr->_name.qname() != name) pAttr = static_cast<Attr*>(pAttr->_pNext);
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return pAttr;
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}
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Attr* Element::setAttributeNode(Attr* newAttr)
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{
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poco_check_ptr (newAttr);
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if (newAttr->ownerDocument() != ownerDocument())
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throw DOMException(DOMException::WRONG_DOCUMENT_ERR);
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if (newAttr->ownerElement())
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throw DOMException(DOMException::INUSE_ATTRIBUTE_ERR);
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Attr* oldAttr = getAttributeNode(newAttr->name());
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if (oldAttr) removeAttributeNode(oldAttr);
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Attr* pCur = _pFirstAttr;
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if (pCur)
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{
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while (pCur->_pNext) pCur = static_cast<Attr*>(pCur->_pNext);
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pCur->_pNext = newAttr;
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}
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else _pFirstAttr = newAttr;
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newAttr->duplicate();
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newAttr->_pParent = this;
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if (_pOwner->events())
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dispatchAttrModified(newAttr, MutationEvent::ADDITION, EMPTY_STRING, newAttr->getValue());
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return oldAttr;
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}
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Attr* Element::removeAttributeNode(Attr* oldAttr)
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{
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poco_check_ptr (oldAttr);
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if (_pOwner->events())
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dispatchAttrModified(oldAttr, MutationEvent::REMOVAL, oldAttr->getValue(), EMPTY_STRING);
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if (oldAttr != _pFirstAttr)
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{
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Attr* pCur = _pFirstAttr;
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while (pCur->_pNext != oldAttr) pCur = static_cast<Attr*>(pCur->_pNext);
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if (pCur)
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{
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pCur->_pNext = static_cast<Attr*>(pCur->_pNext->_pNext);
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}
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else throw DOMException(DOMException::NOT_FOUND_ERR);
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}
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else _pFirstAttr = static_cast<Attr*>(_pFirstAttr->_pNext);
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oldAttr->_pNext = 0;
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oldAttr->_pParent = 0;
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oldAttr->autoRelease();
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return oldAttr;
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}
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Attr* Element::addAttributeNodeNP(Attr* oldAttr, Attr* newAttr)
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{
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newAttr->_pParent = this;
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if (oldAttr)
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{
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oldAttr->_pNext = newAttr;
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}
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else if (_pFirstAttr)
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{
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newAttr->_pNext = _pFirstAttr;
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_pFirstAttr = newAttr;
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}
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else
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{
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_pFirstAttr = newAttr;
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}
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newAttr->duplicate();
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return newAttr;
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}
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NodeList* Element::getElementsByTagName(const XMLString& name) const
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{
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return new ElementsByTagNameList(this, name);
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}
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NodeList* Element::getElementsByTagNameNS(const XMLString& namespaceURI, const XMLString& localName) const
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{
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return new ElementsByTagNameListNS(this, namespaceURI, localName);
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}
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void Element::normalize()
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{
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Node* pCur = firstChild();
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while (pCur)
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{
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if (pCur->nodeType() == Node::ELEMENT_NODE)
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{
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pCur->normalize();
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}
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else if (pCur->nodeType() == Node::TEXT_NODE)
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{
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Node* pNext = pCur->nextSibling();
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while (pNext && pNext->nodeType() == Node::TEXT_NODE)
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{
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static_cast<Text*>(pCur)->appendData(pNext->nodeValue());
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removeChild(pNext);
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pNext = pCur->nextSibling();
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}
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}
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pCur = pCur->nextSibling();
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}
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}
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const XMLString& Element::nodeName() const
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{
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return tagName();
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}
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NamedNodeMap* Element::attributes() const
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{
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return new AttrMap(const_cast<Element*>(this));
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}
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unsigned short Element::nodeType() const
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{
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return Node::ELEMENT_NODE;
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}
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const XMLString& Element::getAttributeNS(const XMLString& namespaceURI, const XMLString& localName) const
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{
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Attr* pAttr = getAttributeNodeNS(namespaceURI, localName);
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if (pAttr)
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return pAttr->getValue();
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else
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return EMPTY_STRING;
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}
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void Element::setAttributeNS(const XMLString& namespaceURI, const XMLString& qualifiedName, const XMLString& value)
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{
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Attr* pAttr = getAttributeNodeNS(namespaceURI, qualifiedName);
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if (pAttr)
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{
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pAttr->setValue(value);
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}
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else
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{
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pAttr = _pOwner->createAttributeNS(namespaceURI, qualifiedName);
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pAttr->setValue(value);
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setAttributeNodeNS(pAttr);
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pAttr->release();
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}
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}
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void Element::removeAttributeNS(const XMLString& namespaceURI, const XMLString& localName)
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{
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Attr* pAttr = getAttributeNodeNS(namespaceURI, localName);
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if (pAttr) removeAttributeNode(pAttr);
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}
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Attr* Element::getAttributeNodeNS(const XMLString& namespaceURI, const XMLString& localName) const
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{
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Attr* pAttr = _pFirstAttr;
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while (pAttr && (pAttr->_name.namespaceURI() != namespaceURI || pAttr->_name.localName() != localName)) pAttr = static_cast<Attr*>(pAttr->_pNext);
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return pAttr;
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}
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Attr* Element::setAttributeNodeNS(Attr* newAttr)
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{
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poco_check_ptr (newAttr);
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if (newAttr->ownerDocument() != ownerDocument())
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throw DOMException(DOMException::WRONG_DOCUMENT_ERR);
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if (newAttr->ownerElement())
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throw DOMException(DOMException::INUSE_ATTRIBUTE_ERR);
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Attr* oldAttr = getAttributeNodeNS(newAttr->namespaceURI(), newAttr->localName());
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if (oldAttr) removeAttributeNode(oldAttr);
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Attr* pCur = _pFirstAttr;
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if (pCur)
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{
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while (pCur->_pNext) pCur = static_cast<Attr*>(pCur->_pNext);
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pCur->_pNext = newAttr;
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}
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else _pFirstAttr = newAttr;
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newAttr->_pParent = this;
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newAttr->duplicate();
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if (_pOwner->events())
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dispatchAttrModified(newAttr, MutationEvent::ADDITION, EMPTY_STRING, newAttr->getValue());
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return oldAttr;
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}
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bool Element::hasAttribute(const XMLString& name) const
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{
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return getAttributeNode(name) != 0;
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}
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bool Element::hasAttributeNS(const XMLString& namespaceURI, const XMLString& localName) const
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{
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return getAttributeNodeNS(namespaceURI, localName) != 0;
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}
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const XMLString& Element::namespaceURI() const
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{
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return _name.namespaceURI();
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}
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XMLString Element::prefix() const
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{
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return _name.prefix();
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}
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const XMLString& Element::localName() const
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{
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return _name.localName();
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}
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bool Element::hasAttributes() const
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{
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return _pFirstAttr != 0;
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}
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XMLString Element::innerText() const
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{
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XMLString result;
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Node* pChild = firstChild();
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while (pChild)
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{
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result.append(pChild->innerText());
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pChild = pChild->nextSibling();
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}
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return result;
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}
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Element* Element::getChildElement(const XMLString& name) const
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{
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Node* pNode = firstChild();
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while (pNode && !(pNode->nodeType() == Node::ELEMENT_NODE && pNode->nodeName() == name))
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pNode = pNode->nextSibling();
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return static_cast<Element*>(pNode);
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}
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Element* Element::getChildElementNS(const XMLString& namespaceURI, const XMLString& localName) const
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{
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Node* pNode = firstChild();
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while (pNode && !(pNode->nodeType() == Node::ELEMENT_NODE && pNode->namespaceURI() == namespaceURI && pNode->localName() == localName))
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pNode = pNode->nextSibling();
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return static_cast<Element*>(pNode);
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}
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void Element::dispatchNodeRemovedFromDocument()
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{
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AbstractContainerNode::dispatchNodeRemovedFromDocument();
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Attr* pAttr = _pFirstAttr;
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while (pAttr)
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{
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pAttr->dispatchNodeRemovedFromDocument();
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pAttr = static_cast<Attr*>(pAttr->_pNext);
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}
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}
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void Element::dispatchNodeInsertedIntoDocument()
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{
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AbstractContainerNode::dispatchNodeInsertedIntoDocument();
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Attr* pAttr = _pFirstAttr;
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while (pAttr)
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{
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pAttr->dispatchNodeInsertedIntoDocument();
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pAttr = static_cast<Attr*>(pAttr->_pNext);
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}
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}
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Node* Element::copyNode(bool deep, Document* pOwnerDocument) const
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{
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Element* pClone = new Element(pOwnerDocument, *this);
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if (deep)
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{
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Node* pNode = firstChild();
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while (pNode)
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{
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pClone->appendChild(static_cast<AbstractNode*>(pNode)->copyNode(true, pOwnerDocument))->release();
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pNode = pNode->nextSibling();
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}
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}
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return pClone;
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}
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Element* Element::getElementById(const XMLString& elementId, const XMLString& idAttribute) const
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{
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if (getAttribute(idAttribute) == elementId)
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return const_cast<Element*>(this);
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Node* pNode = firstChild();
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while (pNode)
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{
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if (pNode->nodeType() == Node::ELEMENT_NODE)
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{
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Element* pResult = static_cast<Element*>(pNode)->getElementById(elementId, idAttribute);
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if (pResult) return pResult;
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}
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pNode = pNode->nextSibling();
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}
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return 0;
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}
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Element* Element::getElementByIdNS(const XMLString& elementId, const XMLString& idAttributeURI, const XMLString& idAttributeLocalName) const
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{
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if (getAttributeNS(idAttributeURI, idAttributeLocalName) == elementId)
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return const_cast<Element*>(this);
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Node* pNode = firstChild();
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while (pNode)
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{
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if (pNode->nodeType() == Node::ELEMENT_NODE)
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{
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Element* pResult = static_cast<Element*>(pNode)->getElementByIdNS(elementId, idAttributeURI, idAttributeLocalName);
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if (pResult) return pResult;
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}
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pNode = pNode->nextSibling();
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}
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return 0;
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}
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} } // namespace Poco::XML
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