/*******************************************************************************
* 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.jsf.text.ext.hyperlink;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
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.jboss.tools.jsf.project.JSFNature;
import org.jboss.tools.jsf.text.ext.JSFExtensionsPlugin;
import org.jboss.tools.jst.web.ui.internal.text.ext.hyperlink.jsp.JSPRootHyperlinkPartitioner;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
/**
* @author Jeremy
*/
public class JsfJSPTagAttributeHyperlinkPartitioner extends AbstractHyperlinkPartitioner implements IHyperlinkPartitionRecognizer {
public static final String JSF_JSP_TAG_ATTRIBUTE_PARTITION = "org.jboss.tools.common.text.ext.jsp.JSF_JSP_TAG_ATTRIBUTE"; //$NON-NLS-1$
private String[] JSF_PROJECT_NATURES = {
JSFNature.NATURE_ID
};
/**
* @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();
smw.init(document);
try {
Document xmlDocument = smw.getDocument();
if (xmlDocument == null) return null;
Utils.findNodeForOffset(xmlDocument, offset);
IRegion r = getRegion(document, offset);
if (r == null) return null;
String axis = getAxis(document, offset);
String contentType = superRegion.getContentType();
String type = JSF_JSP_TAG_ATTRIBUTE_PARTITION;
return new HyperlinkRegion(r.getOffset(), r.getLength(), axis, contentType, type);
} 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);
IFile documentFile = smw.getFile();
if (documentFile == null)
return false;
IProject project = documentFile.getProject();
for (int i = 0; i < JSF_PROJECT_NATURES.length; i++) {
if(!project.isAccessible()) return false;
if (project.getNature(JSF_PROJECT_NATURES[i]) != null)
return true;
}
return false;
} catch (CoreException x) {
JSFExtensionsPlugin.log("", x); //$NON-NLS-1$
return false;
} finally {
smw.dispose();
}
}
protected IRegion getRegion(IDocument document, final int offset) {
StructuredModelWrapper smw = new StructuredModelWrapper();
smw.init(document);
try {
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;
IDOMNode node = (IDOMNode)n;
int start = node.getStartOffset();
int end = (n instanceof Attr) ? start + ((Attr)n).getNodeName().length() : node.getEndOffset();
if (start > offset || end < offset) return null;
String text = document.get(start, end - start);
StringBuffer sb = new StringBuffer(text);
//find start and end of path property
int bStart = 0;
int bEnd = text.length() - 1;
while (bStart < bEnd &&
(sb.charAt(bStart) == '\'' || sb.charAt(bStart) == '\"' ||
Character.isWhitespace(sb.charAt(bStart)))) {
bStart++;
}
while (bEnd > bStart &&
(sb.charAt(bEnd) == '\'' || sb.charAt(bEnd) == '\"' ||
Character.isWhitespace(sb.charAt(bEnd)))) {
bEnd--;
}
bEnd++;
final int propStart = bStart + start;
final int propLength = bEnd - bStart;
if (propStart > offset || propStart + propLength < offset) return null;
return new Region(propStart,propLength);
} catch (BadLocationException x) {
JSFExtensionsPlugin.log("", x); //$NON-NLS-1$
return null;
} finally {
smw.dispose();
}
}
protected String getAxis(IDocument document, int offset) {
return JSPRootHyperlinkPartitioner.computeAxis(document, offset) + "/"; //$NON-NLS-1$
}
}