bloxbox-java/PinDialog.java at main · stormtheory/bloxbox-java · GitHub

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/*
 * PinDialog.java — Modal PIN entry dialog shown before the request flow.
 *
 * Verifies the entered PIN against the stored SHA-256 hash via Start.verifyPin().
 * After setVisible(true) returns, callers check dialog.verified to decide whether
 * to proceed.
 *
 * Mirrors Python PinDialog(tk.Toplevel).
 */

importjava.awt.Color;
importjava.awt.Component;
importjava.awt.Dimension;
importjava.awt.FlowLayout;
importjava.awt.Font;
importjavax.swing.BorderFactory;
importjavax.swing.Box;
importjavax.swing.BoxLayout;
importjavax.swing.JButton;
importjavax.swing.JDialog;
importjavax.swing.JFrame;
importjavax.swing.JLabel;
importjavax.swing.JPanel;
importjavax.swing.JPasswordField;
importjavax.swing.SwingUtilities;

publicclassPinDialogextendsJDialog {

// ── Result flag — read by caller after dialog closes ─────────────────────
// True only if the correct PIN was entered and confirmed.
publicbooleanverified = false;

// ── Constructor ───────────────────────────────────────────────────────────
PinDialog(JFrameparent) {
super(parent, "Enter Passcode", true); // true = modal — blocks parent
setResizable(false);
getContentPane().setBackground(Start.BG_COLOR);

buildUI();

pack();
setLocationRelativeTo(parent); // Centre over the launcher window
 }

// ── UI construction ───────────────────────────────────────────────────────

privatevoidbuildUI() {
JPanelpanel = newJPanel();
panel.setLayout(newBoxLayout(panel, BoxLayout.Y_AXIS));
panel.setBackground(Start.BG_COLOR);
panel.setBorder(BorderFactory.createEmptyBorder(24, 30, 20, 30));

// ── Heading ───────────────────────────────────────────────────────────
JLabelheading = newJLabel("🔒 Enter Passcode to Request a Game");
heading.setFont(newFont("Georgia", Font.BOLD, 14));
heading.setForeground(Start.TEXT_COLOR);
heading.setAlignmentX(Component.CENTER_ALIGNMENT);
panel.add(heading);
panel.add(Box.createVerticalStrut(6));

// ── Sub-label ─────────────────────────────────────────────────────────
JLabelsub = newJLabel("Ask a parent if you don't know the Passcode.");
sub.setFont(Start.FONT_SMALL);
sub.setForeground(Start.SUBTEXT_COLOR);
sub.setAlignmentX(Component.CENTER_ALIGNMENT);
panel.add(sub);
panel.add(Box.createVerticalStrut(14));

// ── PIN field — masked with ● ─────────────────────────────────────────
// JPasswordField handles secure char[] storage; getPassword() preferred over getText()
JPasswordFieldpinField = newJPasswordField(12);
pinField.setFont(newFont("Georgia", Font.PLAIN, 18));
pinField.setBackground(Color.decode("#252540"));
pinField.setForeground(Start.TEXT_COLOR);
pinField.setCaretColor(Start.TEXT_COLOR);
pinField.setBorder(BorderFactory.createEmptyBorder(8, 8, 8, 8));
pinField.setEchoChar('●'); // Mask characters — mirrors Python show="●"
pinField.setAlignmentX(Component.CENTER_ALIGNMENT);
pinField.setMaximumSize(newDimension(200, 44));
panel.add(pinField);
panel.add(Box.createVerticalStrut(6));

// ── Error label — hidden until a wrong PIN is entered ─────────────────
JLabelerrorLbl = newJLabel(" "); // Non-empty to reserve layout space
errorLbl.setFont(Start.FONT_SMALL);
errorLbl.setForeground(Start.ACCENT_COLOR);
errorLbl.setAlignmentX(Component.CENTER_ALIGNMENT);
panel.add(errorLbl);
panel.add(Box.createVerticalStrut(12));

// ── Buttons ───────────────────────────────────────────────────────────
JPanelbtnRow = newJPanel(newFlowLayout(FlowLayout.CENTER, 8, 0));
btnRow.setBackground(Start.BG_COLOR);

JButtonconfirmBtn = Start.makeButton("Confirm", Start.REQUEST_COLOR);
JButtoncancelBtn = Start.makeButton("Cancel", Color.decode("#333333"));

btnRow.add(confirmBtn);
btnRow.add(cancelBtn);
panel.add(btnRow);

add(panel);

// ── Event handling ────────────────────────────────────────────────────

// Shared submit logic — used by both the button and the Enter key binding
RunnableonSubmit = () -> {
Stringpin = newString(pinField.getPassword()).strip();

if (pin.isEmpty()) {
errorLbl.setText("⚠️ Please enter a PIN.");
return;
 }

if (Start.verifyPin(pin)) {
verified = true; // Correct — signal success to the caller
dispose(); // Close dialog; setVisible() returns to caller
 } else {
// Wrong PIN — clear field and let the child try again
pinField.setText("");
errorLbl.setText("❌ Incorrect PIN. Try again.");
pinField.requestFocus();
 }
 };

confirmBtn.addActionListener(e -> onSubmit.run());
cancelBtn.addActionListener(e -> dispose()); // Cancel leaves verified=false

// Enter key submits — mirrors Python self.bind("<Return>", ...)
pinField.addActionListener(e -> onSubmit.run());

// Auto-focus the PIN field when the dialog appears
SwingUtilities.invokeLater(pinField::requestFocusInWindow);
 }
}