/*
 *                 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 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

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

import org.openide.nodes.Node;
import org.openide.loaders.DataObject;
import org.openide.filesystems.FileObject;
import org.netbeans.modules.xml.tree.nodes.ElementNode;
import org.netbeans.tax.TreeElement;
import org.netbeans.tax.TreeAttribute;

/**
 * Interface for all XML tree editor customizers.
 *
 * @author  Rich Unger
 */
public abstract class ElementCustomizer extends javax.swing.JTabbedPane 
  implements java.beans.Customizer
{
    /** Gets a FileObject representing the page this customizer is editing */
    public FileObject getFileObject()
    {
        Node.Cookie cookie = m_node.getCookie( DataObject.class );
        DataObject dObj = (DataObject)cookie;
        return dObj.getPrimaryFile();
    }

    public ElementNode getNode()
    {
        return m_node;
    }

    /** Customizer interface.  Will be called when the DoctypeMap properties file is read */
    public void setObject( Object obj )
    {
        m_node = (ElementNode)obj;
    }

    /**
     * convenience method for setting attributes in TreeElement.
     * For more info on the issues surrounding this, see:
     * http://www.netbeans.org/issues/show_bug.cgi?id=17699
     */
    public void setAttribute( String sName, String sValue )
    {
        TreeElement element = m_node.getElement();

        synchronized( element )
        {
            try
            {
                if ( sValue == null || sValue.trim().length() == 0) {
                    element.removeAttribute(sName);
                }
                else if( !element.hasAttribute(sName) )
                {
                    element.addAttribute(sName, sValue);
                }
                else
                {
                    TreeAttribute attr = element.getAttribute( sName );
                    attr.setValue( sValue );
                }
            }
            catch( org.netbeans.tax.ReadOnlyException ex )
            {
                // voicexml doesn't declare any read-only attributes
            }
            catch( org.netbeans.tax.InvalidArgumentException ex )
            {
            }
        }
    }

    public String getAttribute(String sName)
    {
        if (sName != null && sName.length() > 0) {
            TreeElement element = m_node.getElement();
            if (element != null) {
                TreeAttribute ta = element.getAttribute(sName);
                if (ta != null) {
                    return ta.getValue();
                }
            }
        }
        return null;
    }

    protected ElementNode m_node;
}