/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is Forte for Java, Community Edition. The Initial
 * Developer of the Original Code is Sun Microsystems, Inc. Portions
 * Copyright 1997-2002 Sun Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.mdrxml.util;

import org.openide.util.actions.*;
import org.openide.nodes.*;
import org.openide.filesystems.*;
import org.openide.loaders.*;

/**
 * Abstract action enabled on XML resources. Subclass should overide
 * performXMLAction() to fullfil desired contact.
 *
 * @author  Petr Kuzel
 */
public abstract class XMLToolsAction extends NodeAction {
    
    /** Creates a new instance of FillRepositoryAction */
    public XMLToolsAction() {
    }

    /*
     * @return true if one XML file backgrounded file is selected.
     */
    protected boolean enable(Node nodes[]) {
        if (nodes != null && nodes.length == 1) {
            DataObject dobj = (DataObject) nodes[0].getCookie(DataObject.class);
            if (dobj != null) {
                if (dobj instanceof XMLDataObject) return true;
                
                FileObject fo = dobj.getPrimaryFile();
                if (fo.getMIMEType().endsWith("+xml")) return true;
            }
        }
        return false;
    }
        
    protected abstract void performXMLAction(FileObject fo);
    
    protected void performAction(Node[] nodes) {
        if (nodes != null && nodes.length == 1) {
            DataObject dobj = (DataObject) nodes[0].getCookie(DataObject.class);
            if (dobj != null) {
                performXMLAction(dobj.getPrimaryFile());
            }
        }
    }
    
}