Source Code : Dialog with Escape Key

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Dialog with Escape Key

   
import java.awt.BorderLayout;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.InputMap;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.KeyStroke;

public class FrameKey {

  public static void main(String args[]) {
    final JFrame frame = new JFrame("Frame Key");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Action actionListener = new AbstractAction() {
      public void actionPerformed(ActionEvent actionEvent) {
        JDialog dialog = new EscapeDialog(frame, "Hey");
        JButton button = new JButton("Okay");
        ActionListener innerActionListener = new ActionListener() {
          public void actionPerformed(ActionEvent actionEvent) {
            System.out.println("Dialog Button Selected");
          }
        };
        button.addActionListener(innerActionListener);
        dialog.getContentPane().add(button, BorderLayout.SOUTH);
        dialog.setSize(200, 200);
        dialog.show();
      }
    };

    JPanel content = (JPanel) frame.getContentPane();
    KeyStroke stroke = KeyStroke.getKeyStroke("M");

    InputMap inputMap = content
        .getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
    inputMap.put(stroke, "OPEN");
    content.getActionMap().put("OPEN", actionListener);

    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}

class EscapeDialog extends JDialog {
  public EscapeDialog() {
    this((Frame) null, false);
  }

  public EscapeDialog(Frame owner) {
    this(owner, false);
  }

  public EscapeDialog(Frame owner, boolean modal) {
    this(owner, null, modal);
  }

  public EscapeDialog(Frame owner, String title) {
    this(owner, title, false);
  }

  public EscapeDialog(Frame owner, String title, boolean modal) {
    super(owner, title, modal);
  }

  public EscapeDialog(Dialog owner) {
    this(owner, false);
  }

  public EscapeDialog(Dialog owner, boolean modal) {
    this(owner, null, modal);
  }

  public EscapeDialog(Dialog owner, String title) {
    this(owner, title, false);
  }

  public EscapeDialog(Dialog owner, String title, boolean modal) {
    super(owner, title, modal);
  }

  protected JRootPane createRootPane() {
    JRootPane rootPane = new JRootPane();
    KeyStroke stroke = KeyStroke.getKeyStroke("ESCAPE");
    Action actionListener = new AbstractAction() {
      public void actionPerformed(ActionEvent actionEvent) {
        setVisible(false);
      }
    };
    InputMap inputMap = rootPane
        .getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
    inputMap.put(stroke, "ESCAPE");
    rootPane.getActionMap().put("ESCAPE", actionListener);

    return rootPane;
  }
}

           
         
    
    
  

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