handleKeyEvent method

@override bool handleKeyEvent(KeyEvent event)

Handles incoming keyboard events to navigate and interact with the menu.

Implementation

@override
bool handleKeyEvent(term.KeyEvent event) {
  if (!isOpen) {
    if (event.baseKey == term.TermKey.space ||
        event.baseKey == term.TermKey.enter ||
        event.key == 'down') {
      openMenu();
      return true;
    }
    return false;
  }

  if (event.key == 'down') {
    setState(() {
      selectedIndex = (selectedIndex + 1) % widget.items.length;
    });
    overlayEntry?._overlayState?.setState(() {});
    return true;
  } else if (event.key == 'up') {
    setState(() {
      selectedIndex =
          (selectedIndex - 1 + widget.items.length) % widget.items.length;
    });
    overlayEntry?._overlayState?.setState(() {});
    return true;
  } else if (event.baseKey == term.TermKey.enter ||
      event.baseKey == term.TermKey.space) {
    selectItem(selectedIndex);
    return true;
  } else if (event.key == 'escape') {
    widget.onCanceled?.call();
    closeMenu();
    return true;
  }
  return false;
}