/*******************************************************************************
* Copyright (c) 2007-2012 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.text.ext.hyperlink.xml;
import org.eclipse.jface.text.IDocument;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.jboss.tools.common.text.ext.hyperlink.AbstractHyperlinkPartitioner;
import org.jboss.tools.common.text.ext.hyperlink.HyperlinkRegion;
import org.jboss.tools.common.text.ext.hyperlink.IHyperlinkPartitionRecognizer;
import org.jboss.tools.common.text.ext.hyperlink.IHyperlinkRegion;
import org.jboss.tools.common.text.ext.util.StructuredModelWrapper;
import org.jboss.tools.common.text.ext.util.Utils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
/**
* @author Jeremy
*/
public class XMLElementNameHyperlinkPartitioner extends AbstractHyperlinkPartitioner implements IHyperlinkPartitionRecognizer {
public static final String XML_ELEMENT_NAME_PARTITION = "org.jboss.tools.common.text.ext.xml.XML_ELEMENT_NAME"; //$NON-NLS-1$
/**
* @see com.ibm.sse.editor.hyperlink.AbstractHyperlinkPartitioner#parse(org.eclipse.jface.text.IDocument, com.ibm.sse.editor.extensions.hyperlink.IHyperlinkRegion)
*/
protected IHyperlinkRegion parse(IDocument document, int offset, IHyperlinkRegion superRegion) {
StructuredModelWrapper smw = new StructuredModelWrapper();
try {
smw.init(document);
Document xmlDocument = smw.getDocument();
if (xmlDocument == null) return null;
Node n = Utils.findNodeForOffset(xmlDocument, offset);
if (n == null || !(n instanceof IDOMElement)) return null;
IHyperlinkRegion r = getRegion(document, offset);
if (r == null) return null;// document.get(r.getOffset(), r.getLength())
String axis = getAxis(document, offset);
String contentType = superRegion.getContentType();
String type = XML_ELEMENT_NAME_PARTITION;
return new HyperlinkRegion(r.getOffset(), r.getLength(), axis, contentType, type);
} finally {
smw.dispose();
}
}
public static IHyperlinkRegion getRegion(IDocument document, final int offset) {
StructuredModelWrapper smw = new StructuredModelWrapper();
try {
smw.init(document);
Document xmlDocument = smw.getDocument();
if (xmlDocument == null) return null;
Node n = Utils.findNodeForOffset(xmlDocument, offset);
if (n == null || !(n instanceof IDOMElement)) return null;
IDOMElement elem = (IDOMElement)n;
String tagName = elem.getTagName();
int start = elem.getStartOffset();
int nameStart = start + (elem.isEndTag() ? "</" : "<").length(); //$NON-NLS-1$ //$NON-NLS-2$
int nameEnd = nameStart + tagName.length();
if (nameStart > offset || nameEnd <= offset) return null;
return new HyperlinkRegion(nameStart, nameEnd - nameStart, null, null, null);
} finally {
smw.dispose();
}
}
/**
* @see com.ibm.sse.editor.extensions.hyperlink.IHyperlinkPartitionRecognizer#recognize(org.eclipse.jface.text.IDocument, com.ibm.sse.editor.extensions.hyperlink.IHyperlinkRegion)
*/
public boolean recognize(IDocument document, int offset, IHyperlinkRegion region) {
StructuredModelWrapper smw = new StructuredModelWrapper();
try {
smw.init(document);
Document xmlDocument = smw.getDocument();
if (xmlDocument == null) return false;
Node n = Utils.findNodeForOffset(xmlDocument, offset);
if (!(n instanceof IDOMElement)) return false;
IDOMElement elem = (IDOMElement)n;
String tagName = elem.getTagName();
int start = elem.getStartOffset();
int nameStart = start + (elem.isEndTag() ? "</" : "<").length(); //$NON-NLS-1$ //$NON-NLS-2$
int nameEnd = nameStart + tagName.length();
return (offset >= nameStart && offset <= nameEnd);
} finally {
smw.dispose();
}
}
}