/*******************************************************************************
* Copyright (c) 2001, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.xml.core.internal.commentelement.impl;
import org.eclipse.wst.xml.core.internal.commentelement.CommentElementHandler;
import org.eclipse.wst.xml.core.internal.commentelement.util.CommentElementFactory;
import org.eclipse.wst.xml.core.internal.commentelement.util.TagScanner;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMAttr;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.eclipse.wst.xml.core.internal.provisional.document.ISourceGenerator;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
/**
*/
class BasicCommentElementHandler implements CommentElementHandler {
private String elementName;
private boolean isEmpty;
public BasicCommentElementHandler(String elementName, boolean isEmpty) {
super();
this.elementName = elementName;
this.isEmpty = isEmpty;
}
public Element createElement(Document document, String data, boolean isJSPTag) {
Element element = null;
String str = data.trim();
CommentElementFactory factory = new CommentElementFactory(document, isJSPTag, this);
if (str.charAt(0) == '/') { // end tag
TagScanner scanner = new TagScanner(str, 1); // skip '/'
String name = scanner.nextName();
if (name.equals(elementName)) {
element = factory.create(name, CommentElementFactory.IS_END);
}
} else { // start tag
TagScanner scanner = new TagScanner(str, 0);
String name = scanner.nextName();
if (name.equals(elementName)) {
element = factory.create(name, (isEmpty) ? CommentElementFactory.IS_EMPTY : CommentElementFactory.IS_START);
// set attributes
String attrName = scanner.nextName();
while (attrName != null) {
String attrValue = scanner.nextValue();
Attr attr = document.createAttribute(attrName);
if (attr != null) {
if (attrValue != null)
((IDOMAttr) attr).setValueSource(attrValue);
element.setAttributeNode(attr);
}
attrName = scanner.nextName();
}
}
}
return element;
}
public String generateEndTagContent(IDOMElement element) {
if (isEmpty) {
return null;
}
ISourceGenerator generator = element.getModel().getGenerator();
StringBuffer buffer = new StringBuffer();
buffer.append(" /"); //$NON-NLS-1$
String tagName = generator.generateTagName(element);
if (tagName != null) {
buffer.append(tagName);
}
buffer.append(' ');
return buffer.toString();
}
public String generateStartTagContent(IDOMElement element) {
ISourceGenerator generator = element.getModel().getGenerator();
StringBuffer buffer = new StringBuffer();
buffer.append(' ');
String tagName = generator.generateTagName(element);
if (tagName != null) {
buffer.append(tagName);
}
NamedNodeMap attributes = element.getAttributes();
int length = attributes.getLength();
for (int i = 0; i < length; i++) {
Attr attr = (Attr) attributes.item(i);
if (attr == null) {
continue;
}
buffer.append(' ');
String attrName = generator.generateAttrName(attr);
if (attrName != null) {
buffer.append(attrName);
}
String attrValue = generator.generateAttrValue(attr);
if (attrValue != null) {
// attr name only for HTML boolean and JSP
buffer.append('=');
buffer.append(attrValue);
}
}
buffer.append(' ');
return buffer.toString();
}
public boolean isCommentElement(IDOMElement element) {
return (element != null && element.getTagName().equals(elementName)) ? true : false;
}
public boolean isEmpty() {
return isEmpty;
}
}