/*******************************************************************************
* 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.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
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.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
/**
* @author Jeremy
*/
public abstract class XMLContextParamLinkHyperlinkPartitioner extends AbstractHyperlinkPartitioner implements IHyperlinkPartitionRecognizer {
/**
* @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;
if (!recognize(document, offset, superRegion)) return null;
IRegion r = getRegion(document, offset);
if (r == null) return null;
String axis = getAxis(document, offset);
String contentType = superRegion.getContentType();
String type = getPartitionType();
return new HyperlinkRegion(r.getOffset(), r.getLength(), axis, contentType, type);
} finally {
smw.dispose();
}
}
protected abstract String getPartitionType();
private IRegion getRegion(IDocument document, 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 Attr || n instanceof Text)) return null;
int start = Utils.getValueStart(n);
int end = Utils.getValueEnd(n);
if (start > offset || end < offset) return null;
String text = document.get(start, end - start);
StringBuffer sb = new StringBuffer(text);
int bStart = offset - start;
//find start and end of path property
while (bStart >= 0) {
if (!Character.isJavaIdentifierPart(sb.charAt(bStart)) &&
sb.charAt(bStart) != '\\' && sb.charAt(bStart) != '/' &&
sb.charAt(bStart) != ':' && sb.charAt(bStart) != '-' &&
sb.charAt(bStart) != '.' && sb.charAt(bStart) != '_' &&
sb.charAt(bStart) != '%' && sb.charAt(bStart) != '?' &&
sb.charAt(bStart) != '&' && sb.charAt(bStart) != '=') {
bStart++;
break;
}
if (bStart == 0) break;
bStart--;
}
// find end of bean property
int bEnd = offset - start;
while (bEnd < sb.length()) {
if (!Character.isJavaIdentifierPart(sb.charAt(bEnd)) &&
sb.charAt(bEnd) != '\\' && sb.charAt(bEnd) != '/' &&
sb.charAt(bEnd) != ':' && sb.charAt(bEnd) != '-' &&
sb.charAt(bEnd) != '.' && sb.charAt(bEnd) != '_' &&
sb.charAt(bEnd) != '%' && sb.charAt(bEnd) != '?' &&
sb.charAt(bEnd) != '&' && sb.charAt(bEnd) != '=') {
break;
}
bEnd++;
}
int propStart = bStart + start;
int propLength = bEnd - bStart;
if (propStart > offset + 1 || propStart + propLength < offset) return null;
IRegion region = new HyperlinkRegion(propStart, propLength);
return region;
} catch (BadLocationException x) {
//ignore
return null;
} finally {
smw.dispose();
}
}
}