JFrame that closes when someone presses the ESC key : Frame « Swing JFC « Java

JFrame that closes when someone presses the ESC key

 * jMemorize - Learning made easy (and fun) - A Leitner flashcards tool
 * Copyright(C) 2004-2008 Riad Djemili and contributors
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 1, or (at your option)
 * any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;

import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.KeyStroke;
import javax.swing.WindowConstants;

 * A advanced JFrame that closes when someone presses the ESC key.
 * @author djemili
public abstract class EscapableFrame extends JFrame
    public EscapableFrame()
        // on ESC key close frame
            KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "Cancel"); //$NON-NLS-1$
        getRootPane().getActionMap().put("Cancel", new AbstractAction(){ //$NON-NLS-1$
            public void actionPerformed(ActionEvent e)
        // on close window the close method is called
        addWindowListener(new WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) 
     * Is called when the frame is closed by pressing ESC or closing it by
     * clicking on the close icon.
     * @return True if the frame got closed; false otherwise.
    abstract public boolean close();


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