/** Copyright by Barry G. Becker, 2000-2011. Licensed under MIT License: http://www.opensource.org/licenses/MIT */
package com.barrybecker4.ui.dialogs;
import com.barrybecker4.common.app.AppContext;
import com.barrybecker4.ui.components.GradientButton;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
/**
* Allow the user to enter a top secret password to gain access to restricted content.
*
* @author Barry Becker
*/
public class PasswordDialog extends AbstractDialog
implements ActionListener, KeyListener {
private static final String DEFAULT_PASSWORD = "hello123"; //NON-NLS
private String password_;
private JPasswordField passwordField_;
/** click this when the password has been entered. */
protected GradientButton okButton_;
/** newline is like clicking ok. */
private static final char NEWLINE_CHAR = 10;
/**
* Constructor
* @param expectedPassword password that the user must enter to continue.
*/
public PasswordDialog(String expectedPassword) {
super();
if (expectedPassword == null)
password_ = DEFAULT_PASSWORD;
else
password_ = expectedPassword;
showContent();
}
/**
* initialize the dialogs ui
*/
@Override
public JPanel createDialogContent() {
enableEvents( AWTEvent.WINDOW_EVENT_MASK );
this.setResizable(false);
this.setModal( true );
setTitle(AppContext.getLabel("ENTER_PW"));
JPanel mainPanel = new JPanel(new BorderLayout());
JPanel pwPanel = new JPanel(new FlowLayout());
passwordField_= new JPasswordField();
passwordField_.addKeyListener(this);
passwordField_.setColumns(password_.length());
pwPanel.add(new JLabel(AppContext.getLabel("PASSWORD")));
pwPanel.add(passwordField_);
JPanel buttonsPanel = createButtonsPanel();
mainPanel.add( pwPanel, BorderLayout.CENTER );
mainPanel.add( buttonsPanel, BorderLayout.SOUTH );
return mainPanel;
}
/**
* create the buttons that go at the bottom ( eg OK, Cancel, ...)
* @return panel with ok cancel buttons.
*/
protected JPanel createButtonsPanel() {
JPanel buttonsPanel = new JPanel( new FlowLayout() );
okButton_ = new GradientButton();
initBottomButton( okButton_,
AppContext.getLabel("OK"), "Check to see if the password is correct. " );
initBottomButton(cancelButton,
AppContext.getLabel("CANCEL"), "Go back to the main window without entering a password." );
buttonsPanel.add( okButton_ );
buttonsPanel.add(cancelButton);
return buttonsPanel;
}
@Override
public void actionPerformed( ActionEvent e ) {
super.actionPerformed(e);
Object source = e.getSource();
if ( source == okButton_ ) {
validatePassword();
}
}
private void validatePassword() {
if (password_.equals(new String(passwordField_.getPassword()))) {
this.setVisible( false );
}
else {
JOptionPane.showMessageDialog( null,
AppContext.getLabel("INVALID_PW"), AppContext.getLabel("ERROR"), JOptionPane.ERROR_MESSAGE );
}
}
/**
* Implements KeyListener interface.
* Hitting enter is like clicking "ok"
* @param key key that was typed.
*/
public void keyTyped( KeyEvent key ) {
}
public void keyPressed(KeyEvent key) {
char c = key.getKeyChar();
//System.out.println("key="+ Integer.toString(c) + " key2=" + c);
if (c == NEWLINE_CHAR) {
validatePassword();
}
}
public void keyReleased(KeyEvent key) {}
}