/*
 *                 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 Rich Unger. Portions Copyright 1997-2003 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.xml.tree.nodes.propertysheet;

import java.awt.Component;
import java.beans.Customizer;
import java.beans.PropertyChangeListener;
import java.beans.IntrospectionException;
import java.lang.reflect.Constructor;
import javax.swing.SwingConstants;
import org.netbeans.tax.TreeElement;
import org.netbeans.modules.xml.tree.nodes.ElementCustomizer;
import org.netbeans.modules.xml.tree.nodes.ElementNode;
import org.openide.ErrorManager;
import org.openide.explorer.propertysheet.PropertySheet;
import org.openide.nodes.Node;
import org.openide.util.NbBundle;
import org.openide.util.Lookup;

/**
 * A generic way of having a customizer with two tabs:
 * a property sheet tab and some other tab.
 * The other tab should be a java.awt.Component that implements
 * java.beans.Customizer, and has a constructor that takes in an
 * ElementCustomizer.
 * Specify this in your doctype tag map like this:
 * 
 *   
 * 
 *
 * @author Rich Unger
 */
public class PropertySheetCustomizer extends ElementCustomizer
{
    public PropertySheetCustomizer() {
        m_propertySheet = new PropertySheet();
        addTab(getString("CTL_Property_sheet_option"),m_propertySheet);
        setTabPlacement(SwingConstants.BOTTOM);
    }

    public void setGeneralCustomizer(String sGeneralCustomizerClass)
    {
        try
        {
            ClassLoader loader = (ClassLoader) Lookup.getDefault().lookup(ClassLoader.class);
            Class clazz = Class.forName(sGeneralCustomizerClass, true, loader);
            Class[] paramTypes = { ElementCustomizer.class };
            Constructor constructor = clazz.getConstructor(paramTypes);

            Object[] params = { this };
            m_generalCustomizer = (Component)constructor.newInstance(params);

            insertTab(getString("CTL_General"), null, m_generalCustomizer, "", 0);
        }
        catch( Exception ex )
        {
            // badly formed general customizer class.
            // not much we can do here except pretend we only
            // have a property sheet customizer.
            ErrorManager.getDefault().notify(ex);
        }
    }
    
    public void setObject(Object obj) {
        super.setObject(obj);

        try
        { 
            Node n = new ElementNodeAdapter((ElementNode)obj);
            Node[] nodes = new Node[1];
            nodes[0] = n;
            m_propertySheet.setNodes(nodes);
        } 
        catch( IntrospectionException ex )
        { 
            // do nothing, end up with an empty propertysheet
        } 
      
        if( m_generalCustomizer != null && m_generalCustomizer instanceof Customizer )
        {
            ((Customizer)m_generalCustomizer).setObject(obj);
        }
    }    

    protected void removePropertyChangeListener() {
        if (m_generalCustomizer instanceof PropertyChangeListener) {
            PropertyChangeListener listener = (PropertyChangeListener)m_generalCustomizer;
            if (m_node != null) {
                TreeElement element = m_node.getElement();
                element.removePropertyChangeListener(listener);
            }
        }
    }
    
    protected void addPropertyChangeListener() {
        if (m_generalCustomizer instanceof PropertyChangeListener) {
            PropertyChangeListener listener = (PropertyChangeListener)m_generalCustomizer;
            if (m_node != null) {
                TreeElement element = m_node.getElement();
                element.addPropertyChangeListener(listener);
            }
        }
    }
    
    public void setAttribute( String sName, String sValue )
    {
        // setAttribute is called by m_generalCustomizer, who is
        // listening on attribute change events; to avoid infinite
        // recursion, need to remove the m_general customizer as
        // a listener 
         removePropertyChangeListener();
         super.setAttribute(sName, sValue);
         addPropertyChangeListener();
    }
    
    private static String getString(String key) {
        return NbBundle.getBundle(PropertySheetCustomizer.class).getString(key);
    }

    protected Component m_generalCustomizer;
    protected PropertySheet m_propertySheet;
    
}