/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#if defined(XALAN_BUILD_DEPRECATED_DOM_BRIDGE)


#include "XercesBridgeNavigator.hpp"



#include <xalanc/XalanDOM/XalanNode.hpp>



#include <xalanc/XercesParserLiaison/Deprecated/XercesAttrBridge.hpp>
#include <xalanc/XercesParserLiaison/Deprecated/XercesDocumentBridge.hpp>
#include <xalanc/XercesParserLiaison/Deprecated/XercesTextBridge.hpp>
#include <xalanc/XercesParserLiaison/XercesDOMException.hpp>



XALAN_CPP_NAMESPACE_BEGIN



// I'm using this to distinguish between null nodes, which are valid, and
// an uninitialized cached node address.  This is probably bogus, and I'll
// probably just change this to 0, but this is experimental anyway...
#if defined(XALAN_OLD_STYLE_CASTS)
static XalanNode* const		invalidNodeAddress = (XalanNode*)1;
#else
static XalanNode* const		invalidNodeAddress = reinterpret_cast<XalanNode*>(1);
#endif



XercesBridgeNavigator::XercesBridgeNavigator(
			XercesDocumentBridge*	theOwnerDocument,
			bool					mappingMode) :
	m_ownerDocument(theOwnerDocument),
	m_parentNode(mappingMode == true ? invalidNodeAddress : 0),
	m_previousSibling(mappingMode == true ? invalidNodeAddress : 0),
	m_nextSibling(mappingMode == true ? invalidNodeAddress : 0),
	m_firstChild(mappingMode == true ? invalidNodeAddress : 0),
	m_lastChild(mappingMode == true ? invalidNodeAddress : 0),
	m_index(0)
{
}



XercesBridgeNavigator::XercesBridgeNavigator(const XercesBridgeNavigator&	theSource) :
	m_ownerDocument(theSource.m_ownerDocument),
	m_parentNode(theSource.m_parentNode),
	m_previousSibling(theSource.m_previousSibling),
	m_nextSibling(theSource.m_nextSibling),
	m_firstChild(theSource.m_firstChild),
	m_lastChild(theSource.m_lastChild),
	m_index(theSource.m_index)
{
}



XercesBridgeNavigator::~XercesBridgeNavigator()
{
}



XalanNode*
XercesBridgeNavigator::mapNode(const DOM_NodeType&	theXercesNode) const
{
	return m_ownerDocument->mapNode(theXercesNode);
}



XalanAttr*
XercesBridgeNavigator::mapNode(const DOM_AttrType&	theXercesNode) const
{
	return m_ownerDocument->mapNode(theXercesNode);
}



DOM_NodeType
XercesBridgeNavigator::mapNode(const XalanNode*		theXalanNode) const
{
	return m_ownerDocument->mapNode(theXalanNode);
}



DOM_AttrType
XercesBridgeNavigator::mapNode(const XalanAttr*		theXalanNode) const
{
	return m_ownerDocument->mapNode(theXalanNode);
}



XalanNode*
XercesBridgeNavigator::getParentNode(const DOM_NodeType&	theXercesNode) const
{
	if (m_parentNode == invalidNodeAddress)
	{
#if defined(XALAN_NO_MUTABLE)
		((XercesBridgeNavigator*)this)->m_parentNode = m_ownerDocument->mapNode(theXercesNode.getParentNode());
#else
		m_parentNode = m_ownerDocument->mapNode(theXercesNode.getParentNode());
#endif
	}

	return m_parentNode;
}



XalanNode*
XercesBridgeNavigator::getPreviousSibling(const DOM_NodeType&	theXercesNode) const
{
	if (m_previousSibling == invalidNodeAddress)
	{
#if defined(XALAN_NO_MUTABLE)
		((XercesBridgeNavigator*)this)->m_previousSibling = m_ownerDocument->mapNode(theXercesNode.getPreviousSibling());
#else
		m_previousSibling = m_ownerDocument->mapNode(theXercesNode.getPreviousSibling());
#endif
	}

	return m_previousSibling;
}



XalanNode*
XercesBridgeNavigator::getNextSibling(const DOM_NodeType&	theXercesNode) const
{
	if (m_nextSibling == invalidNodeAddress)
	{
#if defined(XALAN_NO_MUTABLE)
		((XercesBridgeNavigator*)this)->m_nextSibling = m_ownerDocument->mapNode(theXercesNode.getNextSibling());
#else
		m_nextSibling = m_ownerDocument->mapNode(theXercesNode.getNextSibling());
#endif
	}

	return m_nextSibling;
}



XalanNode*
XercesBridgeNavigator::getFirstChild(const DOM_NodeType&	theXercesNode) const
{
	if (m_firstChild == invalidNodeAddress)
	{
#if defined(XALAN_NO_MUTABLE)
		((XercesBridgeNavigator*)this)->m_firstChild = m_ownerDocument->mapNode(theXercesNode.getFirstChild());
#else
		m_firstChild = m_ownerDocument->mapNode(theXercesNode.getFirstChild());
#endif
	}

	return m_firstChild;
}



XalanNode*
XercesBridgeNavigator::getLastChild(const DOM_NodeType&		theXercesNode) const
{
	if (m_lastChild == invalidNodeAddress)
	{
#if defined(XALAN_NO_MUTABLE)
		((XercesBridgeNavigator*)this)->m_lastChild = m_ownerDocument->mapNode(theXercesNode.getLastChild());
#else
		m_lastChild = m_ownerDocument->mapNode(theXercesNode.getLastChild());
#endif
	}

	return m_lastChild;
}



XalanNode*
XercesBridgeNavigator::insertBefore(
			DOM_NodeType&	theXercesParent,
			XalanNode*		newChild,
			XalanNode*		refChild) const
{
	assert(newChild != 0);

	// Get the corresponding Xerces nodes...
	const DOM_NodeType	theNewChild = m_ownerDocument->mapNode(newChild);
	const DOM_NodeType	theRefChild = m_ownerDocument->mapNode(refChild);

	try
	{
		const DOM_NodeType	theXercesResult =
			theXercesParent.insertBefore(theNewChild, theRefChild);
		assert(m_ownerDocument->mapNode(theXercesResult) == newChild);
	}
	catch(const DOM_DOMExceptionType&	theException)
	{
		throw XercesDOMException(theException);
	}

	return newChild;
}



XalanNode*
XercesBridgeNavigator::	replaceChild(
			DOM_NodeType&	theXercesParent,
			XalanNode*		newChild,
			XalanNode*		oldChild) const
{
	assert(newChild != 0);
	assert(oldChild != 0);

	// Get the corresponding Xerces nodes...
	const DOM_NodeType	theNewChild = m_ownerDocument->mapNode(newChild);
	const DOM_NodeType	theOldChild = m_ownerDocument->mapNode(oldChild);

	try
	{
		const DOM_NodeType	theXercesResult =
			theXercesParent.replaceChild(theNewChild, theOldChild);
		assert(m_ownerDocument->mapNode(theXercesResult) == oldChild);
	}
	catch(const DOM_DOMExceptionType&	theException)
	{
		throw XercesDOMException(theException);
	}

	return oldChild;
}



XalanNode*
XercesBridgeNavigator::removeChild(
			DOM_NodeType&	theXercesParent,
			XalanNode*		oldChild) const
{
	assert(oldChild != 0);

	// Get the corresponding Xerces nodes...
	const DOM_NodeType	theOldChild = m_ownerDocument->mapNode(oldChild);

	try
	{
		const DOM_NodeType	theXercesResult =
			theXercesParent.removeChild(theOldChild);
		assert(m_ownerDocument->mapNode(theXercesResult) == oldChild);
	}
	catch(const DOM_DOMExceptionType&	theException)
	{
		throw XercesDOMException(theException);
	}

	return oldChild;
}



XalanNode*
XercesBridgeNavigator::appendChild(
			DOM_NodeType&	theXercesParent,
			XalanNode*		newChild) const
{
	return insertBefore(theXercesParent, newChild, 0);
}




XalanElement*
XercesBridgeNavigator::getOwnerElement(const DOM_AttrType&	theXercesAttr) const
{
	if (m_parentNode != invalidNodeAddress)
	{
		assert(m_parentNode->getNodeType() == XalanNode::ELEMENT_NODE);

#if defined(XALAN_OLD_STYLE_CASTS)
		return (XalanElement*)m_parentNode;
#else
		return static_cast<XalanElement*>(m_parentNode);
#endif
	}
	else
	{
		return m_ownerDocument->mapNode(theXercesAttr.getOwnerElement());
	}
}



XalanNode*
XercesBridgeNavigator::cloneNode(
			const XalanNode*		theXalanNode,
			const DOM_NodeType&		theXercesNode,
			bool					deep) const
{
	return m_ownerDocument->internalCloneNode(theXalanNode, theXercesNode, deep);
}



XalanText*
XercesBridgeNavigator::splitText(
			DOM_TextType&	theXercesText,
			unsigned int	offset) const
{
	XalanText*	theXalanText = 0;

	try
	{
		DOM_TextType	theNewXercesText = theXercesText.splitText(offset);
		assert(theXercesText.isNull() == false);

		theXalanText = m_ownerDocument->createBridgeNode(theNewXercesText, 0, true);
	}
	catch(const DOM_DOMExceptionType&	theException)
	{
		throw XercesDOMException(theException);
	}

	return theXalanText;
}



const XalanDOMString&
XercesBridgeNavigator::	getPooledString(const DOMStringType&	theString) const
{
	return m_ownerDocument->getPooledString(theString.rawBuffer(), theString.length());
}



XALAN_CPP_NAMESPACE_END


#endif //XALAN_BUILD_DEPRECATED_DOM_BRIDGE 


