Java JButton registerCancelButton(final JButton cancelButton)

Description

Register the escape key so that it can be used to cancel the associated JDialog.

License

Apache License

Declaration

public static void registerCancelButton(final JButton cancelButton) 

Method Source Code

//package com.java2s;
/*//from   w  w  w.  j a  v a 2 s  .  c  o m
 *    Copyright 2011-2012 University of Toronto
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

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.JDialog;

import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;

public class Main {
    /**
     * Register the escape key so that it can be used to cancel the associated JDialog.
     */
    public static void registerCancelButton(final JButton cancelButton) {
        KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
        JDialog dialog = (JDialog) SwingUtilities.getWindowAncestor(cancelButton);
        dialog.getRootPane().registerKeyboardAction(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                cancelButton.doClick();
            }
        }, stroke, JComponent.WHEN_IN_FOCUSED_WINDOW);
    }
}

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