/*
* Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle or the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package javademo.swing.dialog.DialogDemo;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JDialog;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
/* 1.4 example used by DialogDemo.java. */
@SuppressWarnings("serial")
class CustomDialog extends JDialog implements ActionListener, PropertyChangeListener
{
private String typedText = null;
private JTextField textField;
private DialogDemo dd;
private String magicWord;
private JOptionPane optionPane;
private String btnString1 = "Enter";
private String btnString2 = "Cancel";
/**
* Returns null if the typed string was invalid;
* otherwise, returns the string as the user entered it.
*/
public String getValidatedText()
{
return typedText;
}
/** Creates the reusable dialog. */
public CustomDialog(Frame aFrame, String aWord, DialogDemo parent)
{
super(aFrame, true);
dd = parent;
magicWord = aWord.toUpperCase();
setTitle("Quiz");
textField = new JTextField(10);
// Create an array of the text and components to be displayed.
String msgString1 = "What was Dr. SEUSS's real last name?";
String msgString2 = "(The answer is \"" + magicWord + "\".)";
Object[] array = { msgString1, msgString2, textField };
// Create an array specifying the number of dialog buttons
// and their text.
Object[] options = { btnString1, btnString2 };
// Create the JOptionPane.
optionPane = new JOptionPane(array, JOptionPane.QUESTION_MESSAGE, JOptionPane.YES_NO_OPTION, null, options,
options[0]);
// Make this dialog display it.
setContentPane(optionPane);
// Handle window closing correctly.
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent we)
{
/*
* Instead of directly closing the window,
* we're going to change the JOptionPane's
* value property.
*/
optionPane.setValue(new Integer(JOptionPane.CLOSED_OPTION));
}
});
// Ensure the text field always gets the first focus.
addComponentListener(new ComponentAdapter()
{
public void componentShown(ComponentEvent ce)
{
textField.requestFocusInWindow();
}
});
// Register an event handler that puts the text into the option pane.
textField.addActionListener(this);
// Register an event handler that reacts to option pane state changes.
optionPane.addPropertyChangeListener(this);
}
/** This method handles events for the text field. */
public void actionPerformed(ActionEvent e)
{
optionPane.setValue(btnString1);
}
/** This method reacts to state changes in the option pane. */
public void propertyChange(PropertyChangeEvent e)
{
String prop = e.getPropertyName();
if (isVisible() && (e.getSource() == optionPane)
&& (JOptionPane.VALUE_PROPERTY.equals(prop) || JOptionPane.INPUT_VALUE_PROPERTY.equals(prop)))
{
Object value = optionPane.getValue();
if (value == JOptionPane.UNINITIALIZED_VALUE)
{
// ignore reset
return;
}
// Reset the JOptionPane's value.
// If you don't do this, then if the user
// presses the same button next time, no
// property change event will be fired.
optionPane.setValue(JOptionPane.UNINITIALIZED_VALUE);
if (btnString1.equals(value))
{
typedText = textField.getText();
String ucText = typedText.toUpperCase();
if (magicWord.equals(ucText))
{
// we're done; clear and dismiss the dialog
clearAndHide();
}
else
{
// text was invalid
textField.selectAll();
JOptionPane.showMessageDialog(CustomDialog.this, "Sorry, \"" + typedText + "\" "
+ "isn't a valid response.\n" + "Please enter " + magicWord + ".", "Try again",
JOptionPane.ERROR_MESSAGE);
typedText = null;
textField.requestFocusInWindow();
}
}
else
{ // user closed dialog or clicked cancel
dd.setLabel("It's OK. " + "We won't force you to type " + magicWord + ".");
typedText = null;
clearAndHide();
}
}
}
/** This method clears the dialog and hides it. */
public void clearAndHide()
{
textField.setText(null);
setVisible(false);
}
}