onKey method

@override bool onKey(KeyEvent event, RenderContext ctx)

Implementation

@override
bool onKey(KeyEvent event, RenderContext ctx) {
  if (items.isEmpty) return false;
  if (event.key == NamedKey.arrowDown || event.char == 'j') {
    state.selected = (state.selected + 1).clamp(0, items.length - 1);
    return true;
  }
  if (event.key == NamedKey.arrowUp || event.char == 'k') {
    state.selected = (state.selected - 1).clamp(0, items.length - 1);
    return true;
  }
  if (event.key == NamedKey.pageDown) {
    state.selected = (state.selected + 10).clamp(0, items.length - 1);
    return true;
  }
  if (event.key == NamedKey.pageUp) {
    state.selected = (state.selected - 10).clamp(0, items.length - 1);
    return true;
  }
  if (event.key == NamedKey.home) {
    state.selected = 0;
    return true;
  }
  if (event.key == NamedKey.end) {
    state.selected = items.length - 1;
    return true;
  }
  if (event.key == NamedKey.enter) {
    if (state.selected >= 0 && state.selected < items.length) {
      onActivate?.call(items[state.selected], state.selected);
    }
    return true;
  }
  return false;
}