📄 domnodeimpl.java
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/*
* @(#)DOMNodeImpl.java 1.11 2000/08/16
*
*/
package org.w3c.tidy;
import org.w3c.dom.DOMException;
/**
*
* DOMNodeImpl
*
* (c) 1998-2000 (W3C) MIT, INRIA, Keio University
* See Tidy.java for the copyright notice.
* Derived from <a href="http://www.w3.org/People/Raggett/tidy">
* HTML Tidy Release 4 Aug 2000</a>
*
* @author Dave Raggett <dsr@w3.org>
* @author Andy Quick <ac.quick@sympatico.ca> (translation to Java)
* @version 1.4, 1999/09/04 DOM Support
* @version 1.5, 1999/10/23 Tidy Release 27 Sep 1999
* @version 1.6, 1999/11/01 Tidy Release 22 Oct 1999
* @version 1.7, 1999/12/06 Tidy Release 30 Nov 1999
* @version 1.8, 2000/01/22 Tidy Release 13 Jan 2000
* @version 1.9, 2000/06/03 Tidy Release 30 Apr 2000
* @version 1.10, 2000/07/22 Tidy Release 8 Jul 2000
* @version 1.11, 2000/08/16 Tidy Release 4 Aug 2000
*/
public class DOMNodeImpl implements org.w3c.dom.Node {
protected Node adaptee;
protected DOMNodeImpl(Node adaptee)
{
this.adaptee = adaptee;
}
/* --------------------- DOM ---------------------------- */
/**
* @see org.w3c.dom.Node#getNodeValue
*/
public String getNodeValue() throws DOMException
{
String value = ""; //BAK 10/10/2000 replaced null
if (adaptee.type == Node.TextNode ||
adaptee.type == Node.CDATATag ||
adaptee.type == Node.CommentTag ||
adaptee.type == Node.ProcInsTag)
{
if (adaptee.textarray != null && adaptee.start < adaptee.end)
{
value = Lexer.getString(adaptee.textarray,
adaptee.start,
adaptee.end - adaptee.start);
}
}
return value;
}
/**
* @see org.w3c.dom.Node#setNodeValue
*/
public void setNodeValue(String nodeValue) throws DOMException
{
if (adaptee.type == Node.TextNode ||
adaptee.type == Node.CDATATag ||
adaptee.type == Node.CommentTag ||
adaptee.type == Node.ProcInsTag)
{
byte[] textarray = Lexer.getBytes(nodeValue);
adaptee.textarray = textarray;
adaptee.start = 0;
adaptee.end = textarray.length;
}
}
/**
* @see org.w3c.dom.Node#getNodeName
*/
public String getNodeName()
{
return adaptee.element;
}
/**
* @see org.w3c.dom.Node#getNodeType
*/
public short getNodeType()
{
short result = -1;
switch (adaptee.type) {
case Node.RootNode:
result = org.w3c.dom.Node.DOCUMENT_NODE;
break;
case Node.DocTypeTag:
result = org.w3c.dom.Node.DOCUMENT_TYPE_NODE;
break;
case Node.CommentTag:
result = org.w3c.dom.Node.COMMENT_NODE;
break;
case Node.ProcInsTag:
result = org.w3c.dom.Node.PROCESSING_INSTRUCTION_NODE;
break;
case Node.TextNode:
result = org.w3c.dom.Node.TEXT_NODE;
break;
case Node.CDATATag:
result = org.w3c.dom.Node.CDATA_SECTION_NODE;
break;
case Node.StartTag:
case Node.StartEndTag:
result = org.w3c.dom.Node.ELEMENT_NODE;
break;
}
return result;
}
/**
* @see org.w3c.dom.Node#getParentNode
*/
public org.w3c.dom.Node getParentNode()
{
if (adaptee.parent != null)
return adaptee.parent.getAdapter();
else
return null;
}
/**
* @see org.w3c.dom.Node#getChildNodes
*/
public org.w3c.dom.NodeList getChildNodes()
{
return new DOMNodeListImpl(adaptee);
}
/**
* @see org.w3c.dom.Node#getFirstChild
*/
public org.w3c.dom.Node getFirstChild()
{
if (adaptee.content != null)
return adaptee.content.getAdapter();
else
return null;
}
/**
* @see org.w3c.dom.Node#getLastChild
*/
public org.w3c.dom.Node getLastChild()
{
if (adaptee.last != null)
return adaptee.last.getAdapter();
else
return null;
}
/**
* @see org.w3c.dom.Node#getPreviousSibling
*/
public org.w3c.dom.Node getPreviousSibling()
{
if (adaptee.prev != null)
return adaptee.prev.getAdapter();
else
return null;
}
/**
* @see org.w3c.dom.Node#getNextSibling
*/
public org.w3c.dom.Node getNextSibling()
{
if (adaptee.next != null)
return adaptee.next.getAdapter();
else
return null;
}
/**
* @see org.w3c.dom.Node#getAttributes
*/
public org.w3c.dom.NamedNodeMap getAttributes()
{
return new DOMAttrMapImpl(adaptee.attributes);
}
/**
* @see org.w3c.dom.Node#getOwnerDocument
*/
public org.w3c.dom.Document getOwnerDocument()
{
Node node;
node = this.adaptee;
if (node != null && node.type == Node.RootNode)
return null;
for (node = this.adaptee;
node != null && node.type != Node.RootNode; node = node.parent);
if (node != null)
return (org.w3c.dom.Document)node.getAdapter();
else
return null;
}
/**
* @see org.w3c.dom.Node#insertBefore
*/
public org.w3c.dom.Node insertBefore(org.w3c.dom.Node newChild,
org.w3c.dom.Node refChild)
throws DOMException
{
// TODO - handle newChild already in tree
if (newChild == null)
return null;
if (!(newChild instanceof DOMNodeImpl)) {
throw new DOMExceptionImpl(DOMException.WRONG_DOCUMENT_ERR,
"newChild not instanceof DOMNodeImpl");
}
DOMNodeImpl newCh = (DOMNodeImpl)newChild;
if (this.adaptee.type == Node.RootNode) {
if (newCh.adaptee.type != Node.DocTypeTag &&
newCh.adaptee.type != Node.ProcInsTag) {
throw new DOMExceptionImpl(DOMException.HIERARCHY_REQUEST_ERR,
"newChild cannot be a child of this node");
}
} else if (this.adaptee.type == Node.StartTag) {
if (newCh.adaptee.type != Node.StartTag &&
newCh.adaptee.type != Node.StartEndTag &&
newCh.adaptee.type != Node.CommentTag &&
newCh.adaptee.type != Node.TextNode &&
newCh.adaptee.type != Node.CDATATag) {
throw new DOMExceptionImpl(DOMException.HIERARCHY_REQUEST_ERR,
"newChild cannot be a child of this node");
}
}
if (refChild == null) {
Node.insertNodeAtEnd(this.adaptee, newCh.adaptee);
if (this.adaptee.tag == TagTable.xmlTags
&& this.adaptee.type == Node.StartEndTag) {
this.adaptee.setType(Node.StartTag);
}
} else {
Node ref = this.adaptee.content;
while (ref != null) {
if (ref.getAdapter() == refChild) break;
ref = ref.next;
}
if (ref == null) {
throw new DOMExceptionImpl(DOMException.NOT_FOUND_ERR,
"refChild not found");
}
Node.insertNodeBeforeElement(ref, newCh.adaptee);
}
return newChild;
}
/**
* @see org.w3c.dom.Node#replaceChild
*/
public org.w3c.dom.Node replaceChild(org.w3c.dom.Node newChild,
org.w3c.dom.Node oldChild)
throws DOMException
{
// TODO - handle newChild already in tree
if (newChild == null)
return null;
if (!(newChild instanceof DOMNodeImpl)) {
throw new DOMExceptionImpl(DOMException.WRONG_DOCUMENT_ERR,
"newChild not instanceof DOMNodeImpl");
}
DOMNodeImpl newCh = (DOMNodeImpl)newChild;
if (this.adaptee.type == Node.RootNode) {
if (newCh.adaptee.type != Node.DocTypeTag &&
newCh.adaptee.type != Node.ProcInsTag) {
throw new DOMExceptionImpl(DOMException.HIERARCHY_REQUEST_ERR,
"newChild cannot be a child of this node");
}
} else if (this.adaptee.type == Node.StartTag) {
if (newCh.adaptee.type != Node.StartTag &&
newCh.adaptee.type != Node.StartEndTag &&
newCh.adaptee.type != Node.CommentTag &&
newCh.adaptee.type != Node.TextNode &&
newCh.adaptee.type != Node.CDATATag) {
throw new DOMExceptionImpl(DOMException.HIERARCHY_REQUEST_ERR,
"newChild cannot be a child of this node");
}
}
if (oldChild == null) {
throw new DOMExceptionImpl(DOMException.NOT_FOUND_ERR,
"oldChild not found");
} else {
Node n;
Node ref = this.adaptee.content;
while (ref != null) {
if (ref.getAdapter() == oldChild) break;
ref = ref.next;
}
if (ref == null) {
throw new DOMExceptionImpl(DOMException.NOT_FOUND_ERR,
"oldChild not found");
}
newCh.adaptee.next = ref.next;
newCh.adaptee.prev = ref.prev;
newCh.adaptee.last = ref.last;
newCh.adaptee.parent = ref.parent;
newCh.adaptee.content = ref.content;
if (ref.parent != null) {
if (ref.parent.content == ref)
ref.parent.content = newCh.adaptee;
if (ref.parent.last == ref)
ref.parent.last = newCh.adaptee;
}
if (ref.prev != null) {
ref.prev.next = newCh.adaptee;
}
if (ref.next != null) {
ref.next.prev = newCh.adaptee;
}
for (n = ref.content; n != null; n = n.next) {
if (n.parent == ref)
n.parent = newCh.adaptee;
}
}
return oldChild;
}
/**
* @see org.w3c.dom.Node#removeChild
*/
public org.w3c.dom.Node removeChild(org.w3c.dom.Node oldChild)
throws DOMException
{
if (oldChild == null)
return null;
Node ref = this.adaptee.content;
while (ref != null) {
if (ref.getAdapter() == oldChild) break;
ref = ref.next;
}
if (ref == null) {
throw new DOMExceptionImpl(DOMException.NOT_FOUND_ERR,
"refChild not found");
}
Node.discardElement(ref);
if (this.adaptee.content == null
&& this.adaptee.tag == TagTable.xmlTags
&& this.adaptee.type == Node.StartTag) {
this.adaptee.setType(Node.StartEndTag);
}
return oldChild;
}
/**
* @see org.w3c.dom.Node#appendChild
*/
public org.w3c.dom.Node appendChild(org.w3c.dom.Node newChild)
throws DOMException
{
// TODO - handle newChild already in tree
if (newChild == null)
return null;
if (!(newChild instanceof DOMNodeImpl)) {
throw new DOMExceptionImpl(DOMException.WRONG_DOCUMENT_ERR,
"newChild not instanceof DOMNodeImpl");
}
DOMNodeImpl newCh = (DOMNodeImpl)newChild;
if (this.adaptee.type == Node.RootNode) {
if (newCh.adaptee.type != Node.DocTypeTag &&
newCh.adaptee.type != Node.ProcInsTag) {
throw new DOMExceptionImpl(DOMException.HIERARCHY_REQUEST_ERR,
"newChild cannot be a child of this node");
}
} else if (this.adaptee.type == Node.StartTag) {
if (newCh.adaptee.type != Node.StartTag &&
newCh.adaptee.type != Node.StartEndTag &&
newCh.adaptee.type != Node.CommentTag &&
newCh.adaptee.type != Node.TextNode &&
newCh.adaptee.type != Node.CDATATag) {
throw new DOMExceptionImpl(DOMException.HIERARCHY_REQUEST_ERR,
"newChild cannot be a child of this node");
}
}
Node.insertNodeAtEnd(this.adaptee, newCh.adaptee);
if (this.adaptee.tag == TagTable.xmlTags && this.adaptee.type == Node.StartEndTag) {
this.adaptee.setType(Node.StartTag);
}
return newChild;
}
/**
* @see org.w3c.dom.Node#hasChildNodes
*/
public boolean hasChildNodes()
{
return (adaptee.content != null);
}
/**
* @see org.w3c.dom.Node#cloneNode
*/
public org.w3c.dom.Node cloneNode(boolean deep)
{
Node node = adaptee.cloneNode(deep);
node.parent = null;
return node.getAdapter();
}
/**
* DOM2 - not implemented.
*/
public void normalize()
{
}
/**
* DOM2 - not implemented.
*/
public boolean supports(String feature, String version)
{
return isSupported(feature, version);
}
/**
* DOM2 - not implemented.
*/
public String getNamespaceURI()
{
return null;
}
/**
* DOM2 - not implemented.
*/
public String getPrefix()
{
return null;
}
/**
* DOM2 - not implemented.
*/
public void setPrefix(String prefix)
throws DOMException
{
}
/**
* DOM2 - not implemented.
*/
public String getLocalName()
{
return null;
}
/**
* DOM2 - not implemented.
*/
public boolean isSupported(String feature,String version) {
return false;
}
/**
* DOM2 - @see org.w3c.dom.Node#hasAttributes
* contributed by dlp@users.sourceforge.net
*/
public boolean hasAttributes()
{
return adaptee.attributes != null;
}
}
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