/*******************************************************************************
* 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.jboss.tools.common.text.ext.hyperlink.IHyperlinkRegion;
import org.jboss.tools.common.text.ext.hyperlink.xml.XMLContextParamLinkHyperlinkPartitioner;
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.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
/**
* @author Jeremy
*/
public class JSFXMLContextParamLinkHyperlinkPartitioner extends XMLContextParamLinkHyperlinkPartitioner {
public static final String JSF_XML_CONTEXT_PARAM_LINK_PARTITION = "org.jboss.tools.common.text.ext.xml.JSF_XML_CONTEXT_PARAM_LINK"; //$NON-NLS-1$
private String[] JSF_PROJECT_NATURES = {
JSFNature.NATURE_ID
};
/**
* @see org.jboss.tools.common.text.ext.hyperlink.XMLContextParamLinkHyperlinkPartitioner#getPartitionType()
*/
protected String getPartitionType() {
return JSF_XML_CONTEXT_PARAM_LINK_PARTITION;
}
/**
* @see org.jboss.tools.common.text.ext.hyperlink.XMLContextParamLinkHyperlinkPartitioner#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();
}
}
private static final String CONTEXT_PARAM_TAGNAME = "context-param"; //$NON-NLS-1$
private static final String PARAM_NAME_TAGNAME = "param-name"; //$NON-NLS-1$
private static final String PARAM_VALUE_TAGNAME = "param-value"; //$NON-NLS-1$
private static final String[] VALID_CONTEXT_PARAM_NAMES =
{"javax.faces.CONFIG_FILES","javax.faces.application.CONFIG_FILES"}; //$NON-NLS-1$ //$NON-NLS-2$
/**
* @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) {
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 Text)) return false;
Node paramValueNode = n.getParentNode();
if (paramValueNode == null ||
(!PARAM_VALUE_TAGNAME.equals(paramValueNode.getNodeName())))
return false;
Node contextParamNode = paramValueNode.getParentNode();
if (contextParamNode == null ||
(!CONTEXT_PARAM_TAGNAME.equals(contextParamNode.getNodeName())))
return false;
Node paramNameNode = null;
NodeList children = contextParamNode.getChildNodes();
for (int i = 0; paramNameNode == null && children != null && i < children.getLength(); i++) {
Node child = children.item(i);
if (child instanceof Element && PARAM_NAME_TAGNAME.equals(child.getNodeName())) {
paramNameNode = child;
}
}
if (paramNameNode == null) return false;
String paramNameValue = null;
NodeList list = paramNameNode.getChildNodes();
for (int i = 0; paramNameValue == null && list != null && i < list.getLength(); i++) {
if (list.item(i) instanceof Text) {
Text text = (Text)list.item(i);
int start = Utils.getValueStart(text);
if(start < 0) continue;
int end = Utils.getValueEnd(text);
if (paramNameValue == null)
paramNameValue = "";
paramNameValue += Utils.trimQuotes(document.get(start, end - start));
}
}
if (paramNameValue == null) return false;
for (int i = 0; i < VALID_CONTEXT_PARAM_NAMES.length; i++) {
if (VALID_CONTEXT_PARAM_NAMES[i].equals(paramNameValue))
return true;
}
return false;
} catch (BadLocationException x) {
JSFExtensionsPlugin.log("", x); //$NON-NLS-1$
return false;
} finally {
smw.dispose();
}
}
}