/*******************************************************************************
* 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 java.util.HashMap;
import java.util.Map;
import org.eclipse.jface.text.IDocument;
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.Element;
import org.w3c.dom.Node;
/**
* @author Jeremy
*
*/
public class XMLRootHyperlinkPartitioner extends AbstractHyperlinkPartitioner implements IHyperlinkPartitionRecognizer {
public static final String XML_ROOT_PARTITION = "org.jboss.tools.common.text.ext.xml.XML_ROOT"; //$NON-NLS-1$
/**
* @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) {
if (!recognize(document, offset, superRegion)) return null;
String axis = computeAxis(document, offset) + "/"; //$NON-NLS-1$
String contentType = superRegion.getContentType();
String type = XML_ROOT_PARTITION;
int superLength = superRegion.getLength();
int superOffset = superRegion.getOffset();
IHyperlinkRegion region = new HyperlinkRegion(superOffset, superLength, axis, contentType, type);
return region;
}
public static String computeAxis(IDocument document, int offset) {
String axis = ""; //$NON-NLS-1$
StructuredModelWrapper smw = new StructuredModelWrapper();
try {
smw.init(document);
Document xmlDocument = smw.getDocument();
if (xmlDocument == null) return null;
Node n = Utils.findNodeForOffset(xmlDocument, offset);
Map trackersMap = new HashMap();
if (n != null) {
if ((n instanceof Element || n instanceof Attr) &&
n.getNodeName() != null && n.getNodeName().length() > 0) {
String name = n.getNodeName();
// The node name extraction must be done by taking into account 'jsfc' attribute value
if (n instanceof Element) {
Element e = (Element)n;
String jsfcAttrValue = e.getAttribute("jsfc"); //$NON-NLS-1$
if (jsfcAttrValue != null && jsfcAttrValue.trim().length() > 0) {
name = jsfcAttrValue;
}
}
String nodeName = extractName(name, trackersMap);
axis = "/" + nodeName; //$NON-NLS-1$
}
Node parent = (n instanceof Attr)? ((Attr)n).getOwnerElement():n.getParentNode();
while (parent instanceof Element) {
// Get the axis part depending on the type and name of node
String name = parent.getNodeName();
// The node name extraction must be done by taking into account 'jsfc' attribute value
if (parent instanceof Element) {
Element e = (Element)parent;
String jsfcAttrValue = e.getAttribute("jsfc"); //$NON-NLS-1$
if (jsfcAttrValue != null && jsfcAttrValue.trim().length() > 0) {
name = jsfcAttrValue;
}
}
String nodeName = extractName(name, trackersMap);
if (nodeName != null && nodeName.length() > 0)
axis = "/" + nodeName + axis; //$NON-NLS-1$
parent = parent.getParentNode();
}
}
} finally {
smw.dispose();
}
if (axis == null || axis.length() == 0) axis = ""; //$NON-NLS-1$
return axis;
}
public static String extractName (String name, Map trackersMap) {
if (trackersMap == null || trackersMap.size() == 0) return name;
if (name == null) return null;
int column = name.indexOf(":"); //$NON-NLS-1$
if (column == -1) return name;
String prefix = name.substring(0, column);
if (prefix == null || prefix.trim().length() == 0) return name;
String uri = (String)trackersMap.get(prefix);
if (uri == null || uri.length() == 0) return name;
return "[" + uri + "]" + name.substring(column); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* @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);
return n != null;
} finally {
smw.dispose();
}
}
}