org.w3c.tidy.DOMNodeImpl Maven / Gradle / Ivy
/*
* Copyright 2010 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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.
*/
/*
* @(#)DOMNodeImpl.java 1.11 2000/08/16
*
*/
package org.w3c.tidy;
import org.w3c.dom.DOMException;
import org.w3c.dom.UserDataHandler;
/**
* DOMNodeImpl (c) 1998-2000 (W3C) MIT, INRIA, Keio University See Tidy.java for
* the copyright notice. Derived from HTML Tidy Release 4 Aug
* 2000
*
* @author Dave Raggett
* @author Andy Quick (translation to Java)
* @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.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.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.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
* [email protected]
*/
public boolean hasAttributes() {
return adaptee.attributes != null;
}
public short compareDocumentPosition(org.w3c.dom.Node other) throws DOMException {
return 0;
}
public String getBaseURI() {
return null;
}
public Object getFeature(String feature, String version) {
return null;
}
public String getTextContent() throws DOMException {
return null;
}
public Object getUserData(String key) {
return null;
}
public boolean isDefaultNamespace(String namespaceURI) {
return false;
}
public boolean isEqualNode(org.w3c.dom.Node arg) {
return false;
}
public boolean isSameNode(org.w3c.dom.Node other) {
return false;
}
public String lookupNamespaceURI(String prefix) {
return null;
}
public String lookupPrefix(String namespaceURI) {
return null;
}
public void setTextContent(String textContent) throws DOMException {
}
public Object setUserData(String key, Object data, UserDataHandler handler) {
return null;
}
}
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