CODEWITHSUNDEEP
javaswingjoptionpane
Ericson Willians
Ericson Willians

Reputation: 7845

How do I request focus on a JPasswordField inside a JOptionPane?

I've learned in this other question that it's possible by overriding the addNotify method, but that's not working. Here's my code:

private boolean accessPasswordFrame(String titleText, String labelText, String errorMessage, int accessType) {
    JPasswordField passwordField = new JPasswordField() {
        public void addNotify() {
            super.addNotify();
            requestFocus();
        }
    };
    final JComponent[] inputs = new JComponent[] {
        new JLabel(labelText),
        passwordField
    };
    int result = JOptionPane.showConfirmDialog(frame, inputs, titleText, JOptionPane.OK_CANCEL_OPTION);
    if (result == JOptionPane.OK_OPTION) {
        String rootPass = new String(passwordField.getPassword());
        if (accessType == ADMIN_TYPE) {
            if (rootPass.equals(ROOT_PASSWORD)) {
                return true;
            } else {
                JOptionPane.showMessageDialog(null,
                        errorMessage, "Erro",
                        JOptionPane.ERROR_MESSAGE);
            }
        } else if (accessType == USER_TYPE) {
            if (PasswordFrame.getPasswords() != null) {
                for (Map.Entry<String, String> e : PasswordFrame.getPasswords().entrySet()) {
                    if (rootPass.equals(e.getValue())) {
                        lastUser = e.getKey();
                        return true;
                    } else {
                        JOptionPane.showMessageDialog(null,
                                errorMessage, "Erro",
                                JOptionPane.ERROR_MESSAGE);
                    }
                }
            } else {
                JOptionPane.showMessageDialog(null,
                        "Usuários cadastrados não existem.", "Erro",
                        JOptionPane.ERROR_MESSAGE);
            }
        }
    }
    return false;
}

Once the JOptionPane appears, the default focus is on the "Ok" button:

enter image description here

And if I just requestFocus() before showing the dialog, it doesn't work as well.

Upvotes: 2

Views: 584

Answers (2)

nuclear_bean
nuclear_bean

Reputation: 333

Provided solutions didn't work for me. Following code worked in my case:

    passwordField.setFocusable(true);
    passwordField.requestFocusInWindow();
    passwordField.setCaretPosition(0);

note that JFrame which contains password field has to be visible before calling .requestFocusInWindow()

Upvotes: 0

camickr
camickr

Reputation: 324098

You can add a listener to the component so that the listener is invoked when the option pane is made visible and you can then request focus on the component.

Check out RequestFocusListener class found in Dialog Focus for a reusable solution.

Upvotes: 4

Related Questions