SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package cc.squirreljme.emulator.uiform;

import cc.squirreljme.jvm.mle.callbacks.UIFormCallback;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

/**
 * Handles window display events.
 *
 * @since 2020/09/13
 */
public class HandleDisplayWindowEvent
    implements WindowListener
{
    /** The display to call to. */
    public final SwingDisplay display;
    
    /**
     * Initializes the event handler.
     * 
     * @param __display The display to call into.
     * @throws NullPointerException On null arguments.
     * @since 2020/09/13
     */
    public HandleDisplayWindowEvent(SwingDisplay __display)
        throws NullPointerException
    {
        if (__display == null)
            throw new NullPointerException("NARG");
        
        this.display = __display;
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowOpened(WindowEvent __e)
    {
        // Ignored
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowClosing(WindowEvent __e)
    {
        SwingForm current = this.display.current();
        if (current != null)
        {
            UIFormCallback callback = current.callback();
            if (callback != null)
                callback.exitRequest(current);
        }
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowClosed(WindowEvent __e)
    {
        // Ignored
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowIconified(WindowEvent __e)
    {
        // Ignored
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowDeiconified(WindowEvent __e)
    {
        // Ignored
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowActivated(WindowEvent __e)
    {
        // Ignored
    }
    
    /**
     * {@inheritDoc}
     * @since 2020/09/13
     */
    @Override
    public void windowDeactivated(WindowEvent __e)
    {
        // Ignored
    }
}