Window Loses Focus After Modal Dialog is Dismissed

Question

hi,
I need a JDialog to be opened when i click on a button in JFrame.and it should be modal so that user must not get control to its parent window and rest of the windows can be accessed.
So, i tried setting property like setModalityType(Dialog.ModalityType.DOCUMENT_MODAL), but still unable to access all the windows not only its parent until the dialog gets closed.
Another issue i was facing is when i close out the dialog i need to get the parent to Front of other windows in application. But in my case it was not happening.After closing the dialog, i am getting the last focussed window to front but not its parent. I tried calling getParent().toFront() in windowClosing() Listener of that dialog, But still not able to solve the problem.
Hope someone understands my problems and give me solution.
Hoping for quick response and thanks in advance.

Answer 1

shrikanthhyd wrote:
I need a JDialog to be opened when i click on a button in JFrame.and it should be modal so that user must not get control to its parent window and rest of the windows can be accessed.
So, i tried setting property like setModalityType(Dialog.ModalityType.DOCUMENT_MODAL), but still unable to access all the windows not only its parent until the dialog gets closed.Perhaps you can fix this by calling the first dialog either without a parent or not as a JDialog but rather as a JFrame. Then the second dialog's modality will not impinge on the visibility of the original parent window. For instance:
import java.awt.Dimension;
import java.awt.Window;
import java.awt.Dialog.ModalityType;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
class SwingFu2
    private JPanel mainPanel = new JPanel();
    public SwingFu2()
        mainPanel.setPreferredSize(new Dimension(400, 400));
        JButton showDlg1Btn = new JButton("Show Dialog 1");
        showDlg1Btn.addActionListener(new ActionListener()
            @Override
            public void actionPerformed(ActionEvent e)
                showDlg1Action(e);
        mainPanel.add(showDlg1Btn);
    private void showDlg1Action(ActionEvent e)
        Window frame = SwingUtilities.getWindowAncestor((JButton)e.getSource());
        JPanel dlg1Panel = new JPanel();
        dlg1Panel.setPreferredSize(new Dimension(300, 300));
        JButton showDlg2Btn = new JButton("Show Dialog 2");
        showDlg2Btn.addActionListener(new ActionListener()
            @Override
            public void actionPerformed(ActionEvent e)
                showDlg2Action(e);
        dlg1Panel.add(showDlg2Btn);
        //JDialog dialog1 = new JDialog(null, "Dialog 1", ModalityType.MODELESS); // either of these will work
        JFrame dialog1 = new JFrame("Dialog 1");  // either of these will work
        dialog1.getContentPane().add(dlg1Panel);
        dialog1.pack();
        dialog1.setLocationRelativeTo(null);
        dialog1.setVisible(true);
    private void showDlg2Action(ActionEvent e)
        Window window = SwingUtilities.getWindowAncestor((JButton)e.getSource());
        JPanel dlg2Panel = new JPanel();
        dlg2Panel.setPreferredSize(new Dimension(200, 200));
        JButton showDlg2Btn = new JButton("Show Dialog 2");
        showDlg2Btn.addActionListener(new ActionListener()
            @Override
            public void actionPerformed(ActionEvent e)
                showDlg2Action(e);
        dlg2Panel.add(showDlg2Btn);
        JDialog dialog2 = new JDialog(window, "Dialog 2", ModalityType.DOCUMENT_MODAL);
        dialog2.getContentPane().add(dlg2Panel);
        dialog2.pack();
        dialog2.setLocationRelativeTo(null);
        dialog2.setVisible(true);
    public JPanel getMainPanel()
        return mainPanel;
    private static void createAndShowUI()
        JFrame frame = new JFrame("SwingFu2");
        frame.getContentPane().add(new SwingFu2().getMainPanel());
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    public static void main(String[] args)
        java.awt.EventQueue.invokeLater(new Runnable()
            public void run()
                createAndShowUI();
Another issue i was facing I don't know on this one. Good luck.