abstractnode.cpp

This software aims to create an applet and panel tools to manage a wireless interface card, such as

//
// AbstractNode.cpp
//
// $Id: //poco/Main/XML/src/AbstractNode.cpp#5 $
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//


#include "DOM/AbstractNode.h"
#include "DOM/Document.h"
#include "DOM/ChildNodesList.h"
#include "DOM/EventDispatcher.h"
#include "DOM/DOMException.h"
#include "DOM/EventException.h"
#include "DOM/DOMImplementation.h"
#include "DOM/Attr.h"
#include "XML/Name.h"
#include "DOM/AutoPtr.h"


XML_BEGIN


const XMLString AbstractNode::NODE_NAME = toXMLString("#node");
const XMLString AbstractNode::EMPTY_STRING;


AbstractNode::AbstractNode(Document* pOwnerDocument):
	_pParent(0),
	_pNext(0),
	_pOwner(pOwnerDocument),
	_pEventDispatcher(0)
{
}


AbstractNode::AbstractNode(Document* pOwnerDocument, const AbstractNode& node):
	_pParent(0),
	_pNext(0),
	_pOwner(pOwnerDocument),
	_pEventDispatcher(0)
{
}


AbstractNode::~AbstractNode()
{
	delete _pEventDispatcher;
	if (_pNext) _pNext->release();
}


void AbstractNode::autoRelease()
{
	_pOwner->autoReleasePool().add(this);
}


const XMLString& AbstractNode::nodeName() const
{
	return NODE_NAME;
}


const XMLString& AbstractNode::getNodeValue() const
{
	return EMPTY_STRING;
}


void AbstractNode::setNodeValue(const XMLString& value)
{
	throw DOMException(DOMException::NO_DATA_ALLOWED_ERR);
}


Node* AbstractNode::parentNode() const
{
	return _pParent;
}


NodeList* AbstractNode::childNodes() const
{
	return new ChildNodesList(this);
}


Node* AbstractNode::firstChild() const
{
	return 0;
}


Node* AbstractNode::lastChild() const
{
	return 0;
}


Node* AbstractNode::previousSibling() const
{
	if (_pParent)
	{
		AbstractNode* pSibling = _pParent->_pFirstChild;
		while (pSibling)
		{
		    if (pSibling->_pNext == this) return pSibling;
		    pSibling = pSibling->_pNext;
		}
	}
	return 0;
}


Node* AbstractNode::nextSibling() const
{
	return _pNext;
}


NamedNodeMap* AbstractNode::attributes() const
{
	return 0;
}


Document* AbstractNode::ownerDocument() const
{
	return _pOwner;
}


Node* AbstractNode::insertBefore(Node* newChild, Node* refChild)
{
	throw DOMException(DOMException::HIERARCHY_REQUEST_ERR);
}


Node* AbstractNode::replaceChild(Node* newChild, Node* oldChild)
{
	throw DOMException(DOMException::HIERARCHY_REQUEST_ERR);
}


Node* AbstractNode::removeChild(Node* oldChild)
{
	throw DOMException(DOMException::NO_MODIFICATION_ALLOWED_ERR);
}


Node* AbstractNode::appendChild(Node* newChild)
{
	throw DOMException(DOMException::HIERARCHY_REQUEST_ERR);
}


bool AbstractNode::hasChildNodes() const
{
	return false;
}


Node* AbstractNode::cloneNode(bool deep) const
{
	return copyNode(deep, _pOwner);
}


void AbstractNode::normalize()
{
}


bool AbstractNode::isSupported(const XMLString& feature, const XMLString& version) const
{
	return DOMImplementation::instance().hasFeature(feature, version);
}


const XMLString& AbstractNode::namespaceURI() const
{
	return EMPTY_STRING;
}


XMLString AbstractNode::prefix() const
{
	return EMPTY_STRING;
}


const XMLString& AbstractNode::localName() const
{
	return EMPTY_STRING;
}


bool AbstractNode::hasAttributes() const
{
	return false;
}


XMLString AbstractNode::innerText() const
{
	XMLString result = nodeValue();
	Node* pChild = firstChild();
	while (pChild)
	{
		result.append(pChild->innerText());
		pChild = pChild->nextSibling();
	}
	return result;
}


void AbstractNode::addEventListener(const XMLString& type, EventListener* listener, bool useCapture)
{
	if (_pEventDispatcher)
		_pEventDispatcher->removeEventListener(type, listener, useCapture);
	else
		_pEventDispatcher = new EventDispatcher;
	
	_pEventDispatcher->addEventListener(type, listener, useCapture);
}


void AbstractNode::removeEventListener(const XMLString& type, EventListener* listener, bool useCapture)
{
	if (_pEventDispatcher)
		_pEventDispatcher->removeEventListener(type, listener, useCapture);
}


bool AbstractNode::dispatchEvent(Event* evt)
{
	if (eventsSuspended()) return true;

	if (evt->type().empty()) throw EventException(EventException::UNSPECIFIED_EVENT_TYPE_ERR);

	evt->setTarget(this);
	evt->setCurrentPhase(Event::CAPTURING_PHASE);

	if (_pParent) _pParent->captureEvent(evt);

	if (_pEventDispatcher && !evt->isStopped())
	{
		evt->setCurrentPhase(Event::AT_TARGET);
		evt->setCurrentTarget(this);
		_pEventDispatcher->dispatchEvent(evt);
	}
	if (!evt->isStopped() && evt->bubbles() && _pParent)
	{
		evt->setCurrentPhase(Event::BUBBLING_PHASE);
		_pParent->bubbleEvent(evt);
	}

	return evt->isCanceled();
}


void AbstractNode::captureEvent(Event* evt)
{
	if (_pParent)
		_pParent->captureEvent(evt);
	
	if (_pEventDispatcher && !evt->isStopped())
	{
		evt->setCurrentTarget(this);
		_pEventDispatcher->captureEvent(evt);
	}
}


void AbstractNode::bubbleEvent(Event* evt)
{
	evt->setCurrentTarget(this);
	if (_pEventDispatcher)
	{
		_pEventDispatcher->bubbleEvent(evt);
	}
	if (_pParent && !evt->isStopped())
		_pParent->bubbleEvent(evt);
}


void AbstractNode::dispatchSubtreeModified()
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMSubtreeModified, this, true, false, 0);
	dispatchEvent(pEvent.get());
}


void AbstractNode::dispatchNodeInserted()
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeInserted, this, true, false, parentNode());
	dispatchEvent(pEvent.get());
}


void AbstractNode::dispatchNodeRemoved()
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeRemoved, this, true, false, parentNode());
	dispatchEvent(pEvent.get());
}


void AbstractNode::dispatchNodeRemovedFromDocument()
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeRemovedFromDocument, this, false, false, 0);
	dispatchEvent(pEvent.get());
}


void AbstractNode::dispatchNodeInsertedIntoDocument()
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMNodeInsertedIntoDocument, this, false, false, 0);
	dispatchEvent(pEvent.get());
}


void AbstractNode::dispatchAttrModified(Attr* pAttr, MutationEvent::AttrChangeType changeType, const XMLString& prevValue, const XMLString& newValue)
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMAttrModified, this, true, false, pAttr, prevValue, newValue, pAttr->name(), changeType);
	dispatchEvent(pEvent.get());
}


void AbstractNode::dispatchCharacterDataModified(const XMLString& prevValue, const XMLString& newValue)
{
	AutoPtr<MutationEvent> pEvent = new MutationEvent(_pOwner, MutationEvent::DOMCharacterDataModified, this, true, false, 0, prevValue, newValue, EMPTY_STRING, MutationEvent::MODIFICATION);
	dispatchEvent(pEvent.get());
}


bool AbstractNode::events() const
{
	return _pOwner->events();
}


bool AbstractNode::eventsSuspended() const
{
	return _pOwner->eventsSuspended();
}


void AbstractNode::setOwnerDocument(Document* pOwnerDocument)
{
	_pOwner = pOwnerDocument;
}


XML_END