/*******************************************************************************
* 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.jboss.tools.common.text.ext.ExtensionsPlugin;
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.IExclusiblePartitionerRecognition;
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;
/**
* @author Jeremy
*/
public class XMLElementAttributeValueHyperlinkPartitioner extends AbstractHyperlinkPartitioner implements IHyperlinkPartitionRecognizer, IExclusiblePartitionerRecognition {
public static final String XML_ATTRIBUTE_VALUE_PARTITION = "org.jboss.tools.common.text.ext.xml.XML_ATTRIBUTE_VALUE"; //$NON-NLS-1$
protected String getPartitionType() {
return XML_ATTRIBUTE_VALUE_PARTITION;
}
/**
* @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 Attr)) return null;
int start = Utils.getValueStart(n);
int end = Utils.getValueEnd(n);
String text = document.get(start, end - start);
StringBuffer sb = new StringBuffer(text);
//find start and end of property value
int bStart = 0;
int bEnd = text.length() - 1;
while (bStart < bEnd && (Character.isWhitespace(sb.charAt(bStart))
|| sb.charAt(bStart) == '\"' || sb.charAt(bStart) == '\"')) {
bStart++;
}
while (bEnd > bStart && (Character.isWhitespace(sb.charAt(bEnd))
|| sb.charAt(bEnd) == '\"' || sb.charAt(bEnd) == '\"')) {
bEnd--;
}
bEnd++;
final int propStart = bStart + start;
final int propLength = bEnd - bStart;
if (propStart > offset || propStart + propLength < offset) return null;
String axis = getAxis(document, offset);
String contentType = superRegion.getContentType();
String type = getPartitionType();
return new HyperlinkRegion(propStart, propLength, axis, contentType, type);
} catch (BadLocationException e) {
ExtensionsPlugin.getPluginLog().logError(e);
return 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 Attr)) return false;
int start = Utils.getValueStart(n);
int end = Utils.getValueEnd(n);
if (start < 0 || start > offset || end < offset)
return false;
return true;
} finally {
smw.dispose();
}
}
public boolean excludes(String partitionType, IDocument document, int offset, IHyperlinkRegion superRegion) {
return false;
}
public String getExclusionPartitionType() {
return getPartitionType();
}
}