//
//  CXMLNode_PrivateExtensions.m
//  TouchCode
//
//  Created by Jonathan Wight on 03/07/08.
//  Copyright 2011 toxicsoftware.com. All rights reserved.
//
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//
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//        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.
//
//  THIS SOFTWARE IS PROVIDED BY TOXICSOFTWARE.COM ``AS IS'' AND ANY EXPRESS OR IMPLIED
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#import "CXMLNode_PrivateExtensions.h"

#import "CXMLElement.h"
#import "CXMLDocument_PrivateExtensions.h"
#import "CXMLUnsupportedNode.h"

@implementation CXMLNode (CXMLNode_PrivateExtensions)

- (id)initWithLibXMLNode:(xmlNodePtr)inLibXMLNode freeOnDealloc:(BOOL)infreeOnDealloc
{
if (inLibXMLNode == NULL)
	return nil;

if ((self = [super init]) != NULL)
	{
	_node = inLibXMLNode;
	_freeNodeOnRelease = infreeOnDealloc;
	}
return(self);
}

+ (id)nodeWithLibXMLNode:(xmlNodePtr)inLibXMLNode freeOnDealloc:(BOOL)infreeOnDealloc
{
    // TODO more checking.
    if (inLibXMLNode == NULL)
        return nil;

    if (inLibXMLNode->_private)
        return((__bridge id)inLibXMLNode->_private);

        Class theClass = [self nodeClassForLibXMLNode:inLibXMLNode];

    CXMLNode *theNode = [[theClass alloc] initWithLibXMLNode:inLibXMLNode freeOnDealloc:infreeOnDealloc];


    if (inLibXMLNode->doc != NULL) {
        CXMLDocument *theXMLDocument = (__bridge CXMLDocument *)inLibXMLNode->doc->_private;
        if (theXMLDocument != NULL) {
            NSAssert([theXMLDocument isKindOfClass:[CXMLDocument class]] == YES, @"TODO");

            [[theXMLDocument nodePool] addObject:theNode];

            theNode->_node->_private = (__bridge void *)theNode;
        }
    }
    return(theNode);
}

+ (Class)nodeClassForLibXMLNode:(xmlNodePtr)inLibXMLNode {
    Class theClass;
    
    switch (inLibXMLNode->type)
	{
        case XML_ELEMENT_NODE:
            theClass = [CXMLElement class];
            break;
        case XML_DOCUMENT_NODE:
            theClass = [CXMLDocument class];
            break;
        case XML_ATTRIBUTE_NODE:
        case XML_TEXT_NODE:
        case XML_CDATA_SECTION_NODE:
        case XML_COMMENT_NODE:
            theClass = [CXMLNode class];
            break;
        default:
            theClass = [CXMLUnsupportedNode class];
	}
    
    return theClass;
}

- (xmlNodePtr)node
{
return(_node);
}

- (void)invalidate;
    {
    if (_node)
        {
        if (_node->_private == (__bridge void *)self)
            _node->_private = NULL;

        if (_freeNodeOnRelease)
            {
            xmlUnlinkNode(_node);
            xmlFreeNode(_node);
            }

        _node = NULL;
        }
    }

@end
