Lost focus event litesner vs Mouse event litesner

Question

hi all, I having problem with JSwing components in window environment. Below is the phenomenon.
1.) create a JFrame.
2.) drag JTextField and JButton put onto the JFrame.
3.) Add FocusLostEvent into the JTextField lostFocusListener.
4.) At the event code this:-
if (lostFocusEvent.isTemparory())
return;
javax.swing.JOptionPane dialog = new javax.swing.JOptionPane(
     "Error",                         javax.swing.JOptionPane.INFORMATION_MESSAGE,                         javax.swing.JOptionPane.DEFAULT_OPTION
dialog.createDialog(this,reslabels.getString("Error_Input_Error") ).show();
5.) run the program.
6.) focus your cursor in the JTextField. Next, use your mouse click on the JButton.
7.) You should see this. Message Dialog pop-up.
8.) Well, don't click the OK/NO button from the Dialog box.
9.) Now, point your mouse to the button and see what will happen to your JButton.
10.) The JButton is Armed.
By right the Jbutton should not be armed because the focus should has gained by the dialog box.
After all, we try create the same program using MS VC++. It does not have this problem because logical enough the focus has obtained by the dialog Box. Jbutton should not perform any action. Otherwise, it is some kind of degrade the dialog show modal.
If you has above experience and solutions, please do share with me. Thanks.
regards,
elvis
scjp

Answer 1

WWWizard, It doesn't work. below is the source code. Please take a look and compile it and run at your window environment.
1.) Focus you cursor at the JTextField.
2.) Once ready, click on the JButton. You should see the Dialog msg pop up. Do not close the Dialog at this moment.
3.) Move your mouse pointer to the JButton that you just clicked. Why the JButton is Armed? It shouldn't happen in window environment.
========start==========
package test.lib;
import java.awt.*;
import javax.swing.*;
* This type was generated by a SmartGuide.
public class TestCustLib extends JFrame {
     private JPanel ivjJFrameContentPane = null;
     private JPanel ivjTestCustLibPane = null;
     IvjEventHandler ivjEventHandler = new IvjEventHandler();
     private JTextField ivjJTextField1 = null;
     private JButton ivjJButton1 = null;
class IvjEventHandler implements java.awt.event.FocusListener {
          public void focusGained(java.awt.event.FocusEvent e) {};
          public void focusLost(java.awt.event.FocusEvent e) {
               if (e.getSource() == TestCustLib.this.getJTextField1())
                    connEtoC1(e);
     private lib.ButCus ivjaa = null;
* TestCustLib constructor comment.
public TestCustLib() {
     super();
     initialize();
* TestCustLib constructor comment.
* @param title java.lang.String
public TestCustLib(String title) {
     super(title);
* connEtoC1: (JTextField1.focus.focusLost(java.awt.event.FocusEvent) --> TestCustLib.jTextField1_FocusLost(Ljava.awt.event.FocusEvent;)V)
* @param arg1 java.awt.event.FocusEvent
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC1(java.awt.event.FocusEvent arg1) {
     try {
          // user code begin {1}
          // user code end
          this.jTextField1_FocusLost(arg1);
          // user code begin {2}
          // user code end
     } catch (java.lang.Throwable ivjExc) {
          // user code begin {3}
          // user code end
          handleException(ivjExc);
* Return the aa property value.
* @return lib.ButCus
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private lib.ButCus getaa() {
     if (ivjaa == null) {
          try {
               ivjaa = new lib.ButCus();
               ivjaa.setName("aa");
               ivjaa.setLocation(243, 160);
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjaa;
* Return the JButton1 property value.
* @return javax.swing.JButton
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private javax.swing.JButton getJButton1() {
     if (ivjJButton1 == null) {
          try {
               ivjJButton1 = new javax.swing.JButton();
               ivjJButton1.setName("JButton1");
               ivjJButton1.setText("JButton1");
               ivjJButton1.setBounds(60, 146, 85, 25);
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjJButton1;
* Return the JFrameContentPane property value.
* @return javax.swing.JPanel
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private javax.swing.JPanel getJFrameContentPane() {
     if (ivjJFrameContentPane == null) {
          try {
               ivjJFrameContentPane = new javax.swing.JPanel();
               ivjJFrameContentPane.setName("JFrameContentPane");
               ivjJFrameContentPane.setLayout(new java.awt.BorderLayout());
               getJFrameContentPane().add(getTestCustLibPane(), "Center");
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjJFrameContentPane;
* Return the JTextField1 property value.
* @return javax.swing.JTextField
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private javax.swing.JTextField getJTextField1() {
     if (ivjJTextField1 == null) {
          try {
               ivjJTextField1 = new javax.swing.JTextField();
               ivjJTextField1.setName("JTextField1");
               ivjJTextField1.setBounds(54, 64, 126, 20);
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjJTextField1;
* Return the TestCustLibPane property value.
* @return javax.swing.JPanel
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private javax.swing.JPanel getTestCustLibPane() {
     if (ivjTestCustLibPane == null) {
          try {
               ivjTestCustLibPane = new javax.swing.JPanel();
               ivjTestCustLibPane.setName("TestCustLibPane");
               ivjTestCustLibPane.setLayout(null);
               getTestCustLibPane().add(getJTextField1(), getJTextField1().getName());
               getTestCustLibPane().add(getJButton1(), getJButton1().getName());
               getTestCustLibPane().add(getaa(), getaa().getName());
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjTestCustLibPane;
* Called whenever the part throws an exception.
* @param exception java.lang.Throwable
private void handleException(java.lang.Throwable exception) {
     /* Uncomment the following lines to print uncaught exceptions to stdout */
     // System.out.println("--------- UNCAUGHT EXCEPTION ---------");
     // exception.printStackTrace(System.out);
* Initializes connections
* @exception java.lang.Exception The exception description.
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void initConnections() throws java.lang.Exception {
     // user code begin {1}
     // user code end
     getJTextField1().addFocusListener(ivjEventHandler);
* Initialize the class.
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void initialize() {
     try {
          // user code begin {1}
          // user code end
          setName("TestCustLib");
          setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
          setSize(460, 300);
          setTitle("TestCustLib");
          setContentPane(getJFrameContentPane());
          initConnections();
     } catch (java.lang.Throwable ivjExc) {
          handleException(ivjExc);
     // user code begin {2}
     // user code end
* Comment
public void jTextField1_FocusLost(java.awt.event.FocusEvent focusEvent) {
     if (focusEvent.isTemporary())
          return;
     //int li_Ok = javax.swing.JOptionPane.showConfirmDialog(this,"Don\'t click me!!! Move your mouse to JButton1.","Oops",     javax.swing.JOptionPane.DEFAULT_OPTION,javax.swing.JOptionPane.QUESTION_MESSAGE);
     javax.swing.JOptionPane.showMessageDialog(this,"Don\'t click me!!! Move your mouse to JButton1.");
     //javax.swing.JOptionPane.showInputDialog(this,"Don\'t click me!!! Move your mouse to JButton1.");
     //javax.swing.JOptionPane.showOptionDialog(this,"Don\'t click me!!! Move your mouse to JButton1.","Don\'t click me!!! Move your mouse to JButton1.",javax.swing.JOptionPane.YES_NO_OPTION,javax.swing.JOptionPane.WARNING_MESSAGE,null,null,null);
     //javax.swing.JOptionPane.showInternalMessageDialog(null,"ta");
     return;
* Starts the application.
* @param args an array of command-line arguments
public static void main(java.lang.String[] args) {
     try {
          /* Set native look and feel */
          UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
          /* Create the frame */
          TestCustLib aTestCustLib = new TestCustLib();
          /* Add a windowListener for the windowClosedEvent */
          aTestCustLib.addWindowListener(new java.awt.event.WindowAdapter() {
               public void windowClosed(java.awt.event.WindowEvent e) {
                    System.exit(0);
          aTestCustLib.setVisible(true);
     } catch (Throwable exception) {
          System.err.println("Exception occurred in main() of TestCustLib");
          exception.printStackTrace(System.out);
========end==========