/*
 *                 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 NetBeans. 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.xsl.ui;

import org.netbeans.modules.xml.core.lib.AbstractUtil;
import org.netbeans.api.project.Project;
import org.netbeans.api.project.Sources;
import org.netbeans.api.project.ProjectUtils;
import org.netbeans.api.project.SourceGroup;
import org.netbeans.api.project.ui.OpenProjects;
import org.openide.nodes.Node;
import org.openide.nodes.Children;
import org.openide.nodes.AbstractNode;
import org.openide.nodes.FilterNode;
import org.openide.filesystems.FileObject;
import org.openide.loaders.DataObject;
import org.openide.loaders.DataObjectNotFoundException;
import org.openide.util.lookup.Lookups;
import org.openide.ErrorManager;

import java.util.Comparator;
import java.util.Arrays;
import java.util.Collections;
import java.awt.*;

/**
 *
 * @author Libor Kramolis
 * @version 0.2
 */
class Util extends AbstractUtil {

    /** Default and only one instance of this class. */
    public static final Util THIS = new Util();

    /** Nobody can create instance of it, just me. */
    private Util () {
    }

    // copy pasted from SourceTasksView >>>

    /** Logical view over all opened projects */
    static Node projectView() {

        Children.SortedArray kids = new Children.SortedArray();
        kids.setComparator(new Comparator() {
                public int compare(Object o1, Object o2) {
                    return ((Node) o1).getDisplayName().compareToIgnoreCase(((Node) o2).getDisplayName());
                }
            });

        Project[] projects = OpenProjects.getDefault().getOpenProjects();
        for (int pi = 0; pi