/*******************************************************************************
* 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.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
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.JSPTagAttributeValueHyperlinkPartitioner;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
/**
* @author Jeremy
*
*/
public class JsfTaglibDirectiveHyperlinkPartitioner extends JSPTagAttributeValueHyperlinkPartitioner {
public static final String JSF_JSP_TAGLIB_DIRECTIVE_PARTITION = "org.jboss.tools.common.text.ext.jsp.JSF_JSP_TAGLIB_DIRECTIVE"; //$NON-NLS-1$
private String[] JSF_PROJECT_NATURES = {
JSFNature.NATURE_ID
};
/**
* @see org.jboss.tools.common.text.ext.hyperlink.JSPTagAttributeValueHyperlinkPartitioner#getPartitionType()
*/
protected String getPartitionType() {
return JSF_JSP_TAGLIB_DIRECTIVE_PARTITION;
}
/**
* @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) {
if (!recognizeNature(document))
return false;
StructuredModelWrapper smw = new StructuredModelWrapper();
smw.init(document);
try {
Document xmlDocument = smw.getDocument();
if (xmlDocument == null) return false;
Node n = Utils.findNodeForOffset(xmlDocument, offset);
if (n instanceof Attr) n = ((Attr)n).getOwnerElement();
if (n == null) return false;
final int propStart = Utils.getValueStart(n);
if(propStart < 0) return false;
return true;
} finally {
smw.dispose();
}
}
/**
* @see org.jboss.tools.common.text.ext.hyperlink.IDOMContextParamLinkHyperlinkPartitioner#recognizeNature(org.eclipse.jface.text.IDocument)
*/
protected boolean recognizeNature(IDocument document) {
StructuredModelWrapper smw = new StructuredModelWrapper();
smw.init(document);
try {
IFile documentFile = smw.getFile();
if (documentFile == null)
return false;
IProject project = documentFile.getProject();
if(project == null || !project.isAccessible()) return false;
for (int i = 0; i < JSF_PROJECT_NATURES.length; i++) {
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();
}
}
public 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 instanceof Attr) n = ((Attr)n).getOwnerElement();
if (n == null) return null;
final int propStart = Utils.getValueStart(n);
if(propStart < 0) return null;
final int propLength = Utils.getValueEnd(n) - propStart;
if (propStart > offset || propStart + propLength < offset) return null;
return new Region(propStart,propLength);
} finally {
smw.dispose();
}
}
}