package com.ts3client.ui;

import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JRootPane;
import javax.swing.KeyStroke;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;

/** Behaviour shared by the client's dialogs. */
final class Dialogs {

    private Dialogs() {
    }

    /**
     * Makes Escape close a dialog, the way Swing's own option panes do.
     *
     * <p>The binding lives on the root pane's window-wide input map, so it fires
     * wherever the focus sits — but only where nothing nearer to the focused
     * component claims Escape first, which is what leaves a table's or combo
     * box's own "cancel the edit" behaviour intact.
     */
    static void closeOnEscape(JDialog dialog) {
        closeOnEscape(dialog, dialog::dispose);
    }

    /**
     * Binds Escape to the dialog's own way of closing, for dialogs that have to
     * tidy up (or discard edits) on the way out.
     */
    static void closeOnEscape(JDialog dialog, Runnable close) {
        JRootPane root = dialog.getRootPane();
        root.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
                .put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "ts3-close");
        root.getActionMap().put("ts3-close", new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent e) {
                close.run();
            }
        });
    }
}