dialog.addStyleName("alert");

        dialog.setCaption(title);
        CompositeIcon icon = (CompositeIcon) Classes.getClassFactory().newInstance(type.getIconClass());
        icon.setStyleName("dialog-icon");
        dialog.setHeaderToolbar(icon);
        dialog.showCloseButton();

        dialog.setContent(body.asVaadinComponent());

        Panel shortcutPanel = new Panel();
        shortcutPanel.setStyleName("shortcut-panel");
        shortcutPanel.setHeight(100, Unit.PERCENTAGE);
        shortcutPanel.setWidth(100, Unit.PERCENTAGE);
        shortcutPanel.setContent(dialog);

        final OverlayCloser overlayCloser = openOverlay(new ViewAdapter(shortcutPanel), ModalityLevel.LIGHT);
        final ShortcutListener escapeShortcut = new ShortcutListener("Escape shortcut", ShortcutAction.KeyCode.ESCAPE, null) {
            @Override
            public void handleAction(Object sender, Object target) {
                callback.onOk();