/*
 This file is part of jpcsp.

 Jpcsp 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 3 of the License, or
 (at your option) any later version.

 Jpcsp is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with Jpcsp.  If not, see <http://www.gnu.org/licenses/>.
 */
package jpcsp.GUI;

import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.KeyStroke;

public class CancelButton extends JButton {

    private static final long serialVersionUID = 7544005354633954062L;
    private Window display;
    private static final String escapeCommand = "Escape pressed";

    public CancelButton() {
        this.display = null;
    }

    public CancelButton(Window display) {
        setParent(display);
    }

    final public void setParent(Window display) {
        this.display = display;
        init();
    }

    private void init() {
        // dispose the display when the button is clicked
        addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if (display != null) {
                    display.dispose();
                }
            }
        });

        // click the button when the ESC key is pressed
        registerKeyboardAction(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent event) {
                if (escapeCommand.equals(event.getActionCommand())) {
                    doClick();
                }
            }
        }, escapeCommand, KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), JComponent.WHEN_IN_FOCUSED_WINDOW);
    }
}