mirror of
https://github.com/pocoproject/poco.git
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390 lines
8.3 KiB
C++
390 lines
8.3 KiB
C++
//
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// AbstractNode.cpp
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//
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// $Id: //poco/1.4/XML/src/AbstractNode.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/AbstractNode.h"
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#include "Poco/DOM/Document.h"
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#include "Poco/DOM/ChildNodesList.h"
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#include "Poco/DOM/EventDispatcher.h"
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#include "Poco/DOM/DOMException.h"
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#include "Poco/DOM/EventException.h"
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#include "Poco/DOM/DOMImplementation.h"
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#include "Poco/DOM/Attr.h"
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#include "Poco/XML/Name.h"
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#include "Poco/DOM/AutoPtr.h"
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namespace Poco {
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namespace XML {
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const XMLString AbstractNode::NODE_NAME = toXMLString("#node");
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const XMLString AbstractNode::EMPTY_STRING;
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AbstractNode::AbstractNode(Document* pOwnerDocument):
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_pParent(0),
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_pNext(0),
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_pOwner(pOwnerDocument),
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_pEventDispatcher(0)
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{
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}
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AbstractNode::AbstractNode(Document* pOwnerDocument, const AbstractNode& node):
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_pParent(0),
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_pNext(0),
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_pOwner(pOwnerDocument),
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_pEventDispatcher(0)
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{
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}
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AbstractNode::~AbstractNode()
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{
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delete _pEventDispatcher;
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if (_pNext) _pNext->release();
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}
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void AbstractNode::autoRelease()
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{
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_pOwner->autoReleasePool().add(this);
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}
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const XMLString& AbstractNode::nodeName() const
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{
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return NODE_NAME;
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}
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const XMLString& AbstractNode::getNodeValue() const
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{
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return EMPTY_STRING;
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}
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void AbstractNode::setNodeValue(const XMLString& value)
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{
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throw DOMException(DOMException::NO_DATA_ALLOWED_ERR);
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}
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Node* AbstractNode::parentNode() const
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{
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return _pParent;
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}
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NodeList* AbstractNode::childNodes() const
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{
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return new ChildNodesList(this);
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}
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Node* AbstractNode::firstChild() const
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{
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return 0;
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}
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Node* AbstractNode::lastChild() const
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{
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return 0;
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}
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Node* AbstractNode::previousSibling() const
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{
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if (_pParent)
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{
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AbstractNode* pSibling = _pParent->_pFirstChild;
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while (pSibling)
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{
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if (pSibling->_pNext == this) return pSibling;
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pSibling = pSibling->_pNext;
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}
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}
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return 0;
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}
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Node* AbstractNode::nextSibling() const
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{
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return _pNext;
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}
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NamedNodeMap* AbstractNode::attributes() const
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{
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return 0;
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}
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Document* AbstractNode::ownerDocument() const
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{
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return _pOwner;
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}
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Node* AbstractNode::insertBefore(Node* newChild, Node* refChild)
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{
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throw DOMException(DOMException::HIERARCHY_REQUEST_ERR);
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}
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Node* AbstractNode::replaceChild(Node* newChild, Node* oldChild)
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{
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throw DOMException(DOMException::HIERARCHY_REQUEST_ERR);
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}
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Node* AbstractNode::removeChild(Node* oldChild)
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{
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throw DOMException(DOMException::NO_MODIFICATION_ALLOWED_ERR);
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}
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Node* AbstractNode::appendChild(Node* newChild)
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{
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throw DOMException(DOMException::HIERARCHY_REQUEST_ERR);
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}
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bool AbstractNode::hasChildNodes() const
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{
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return false;
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}
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Node* AbstractNode::cloneNode(bool deep) const
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{
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return copyNode(deep, _pOwner);
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}
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void AbstractNode::normalize()
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{
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}
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bool AbstractNode::isSupported(const XMLString& feature, const XMLString& version) const
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{
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return DOMImplementation::instance().hasFeature(feature, version);
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}
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const XMLString& AbstractNode::namespaceURI() const
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{
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return EMPTY_STRING;
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}
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XMLString AbstractNode::prefix() const
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{
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return EMPTY_STRING;
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}
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const XMLString& AbstractNode::localName() const
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{
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return EMPTY_STRING;
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}
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bool AbstractNode::hasAttributes() const
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{
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return false;
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}
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XMLString AbstractNode::innerText() const
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{
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return EMPTY_STRING;
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}
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Node* AbstractNode::getNodeByPath(const XMLString& path) const
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{
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return 0;
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}
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Node* AbstractNode::getNodeByPathNS(const XMLString& path, const NSMap& nsMap) const
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{
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return 0;
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}
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void AbstractNode::addEventListener(const XMLString& type, EventListener* listener, bool useCapture)
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{
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if (_pEventDispatcher)
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_pEventDispatcher->removeEventListener(type, listener, useCapture);
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else
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_pEventDispatcher = new EventDispatcher;
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_pEventDispatcher->addEventListener(type, listener, useCapture);
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}
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void AbstractNode::removeEventListener(const XMLString& type, EventListener* listener, bool useCapture)
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{
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if (_pEventDispatcher)
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_pEventDispatcher->removeEventListener(type, listener, useCapture);
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}
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bool AbstractNode::dispatchEvent(Event* evt)
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{
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if (eventsSuspended()) return true;
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if (evt->type().empty()) throw EventException(EventException::UNSPECIFIED_EVENT_TYPE_ERR);
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evt->setTarget(this);
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evt->setCurrentPhase(Event::CAPTURING_PHASE);
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if (_pParent) _pParent->captureEvent(evt);
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if (_pEventDispatcher && !evt->isStopped())
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{
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evt->setCurrentPhase(Event::AT_TARGET);
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evt->setCurrentTarget(this);
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_pEventDispatcher->dispatchEvent(evt);
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}
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if (!evt->isStopped() && evt->bubbles() && _pParent)
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{
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evt->setCurrentPhase(Event::BUBBLING_PHASE);
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_pParent->bubbleEvent(evt);
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}
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return evt->isCanceled();
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}
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void AbstractNode::captureEvent(Event* evt)
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{
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if (_pParent)
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_pParent->captureEvent(evt);
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if (_pEventDispatcher && !evt->isStopped())
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{
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evt->setCurrentTarget(this);
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_pEventDispatcher->captureEvent(evt);
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}
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}
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void AbstractNode::bubbleEvent(Event* evt)
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{
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evt->setCurrentTarget(this);
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if (_pEventDispatcher)
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{
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_pEventDispatcher->bubbleEvent(evt);
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}
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if (_pParent && !evt->isStopped())
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_pParent->bubbleEvent(evt);
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}
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void AbstractNode::dispatchSubtreeModified()
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMSubtreeModified, this, true, false, 0);
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dispatchEvent(pEvent.get());
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}
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void AbstractNode::dispatchNodeInserted()
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeInserted, this, true, false, parentNode());
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dispatchEvent(pEvent.get());
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}
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void AbstractNode::dispatchNodeRemoved()
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeRemoved, this, true, false, parentNode());
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dispatchEvent(pEvent.get());
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}
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void AbstractNode::dispatchNodeRemovedFromDocument()
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeRemovedFromDocument, this, false, false, 0);
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dispatchEvent(pEvent.get());
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}
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void AbstractNode::dispatchNodeInsertedIntoDocument()
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeInsertedIntoDocument, this, false, false, 0);
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dispatchEvent(pEvent.get());
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}
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void AbstractNode::dispatchAttrModified(Attr* pAttr, MutationEvent::AttrChangeType changeType, const XMLString& prevValue, const XMLString& newValue)
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMAttrModified, this, true, false, pAttr, prevValue, newValue, pAttr->name(), changeType);
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dispatchEvent(pEvent.get());
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}
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void AbstractNode::dispatchCharacterDataModified(const XMLString& prevValue, const XMLString& newValue)
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{
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AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMCharacterDataModified, this, true, false, 0, prevValue, newValue, EMPTY_STRING, MutationEvent::MODIFICATION);
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dispatchEvent(pEvent.get());
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}
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bool AbstractNode::events() const
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{
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return _pOwner->events();
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}
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bool AbstractNode::eventsSuspended() const
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{
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return _pOwner->eventsSuspended();
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}
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void AbstractNode::setOwnerDocument(Document* pOwnerDocument)
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{
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_pOwner = pOwnerDocument;
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}
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} } // namespace Poco::XML
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