handleKeyEvent method

@override bool handleKeyEvent(KeyEvent event)

Handles keyboard events for moving the slider.

Implementation

@override
bool handleKeyEvent(term.KeyEvent event) {
  final step = (max - min) / 20.0; // 5% step size
  if (axis == SliderAxis.horizontal) {
    if (event.type == KeyType.left) {
      value = (value - step).clamp(min, max);
      onChanged?.call(value);
      return true;
    } else if (event.type == KeyType.right) {
      value = (value + step).clamp(min, max);
      onChanged?.call(value);
      return true;
    }
  } else {
    if (event.type == KeyType.up) {
      value = (value + step).clamp(min, max);
      onChanged?.call(value);
      return true;
    } else if (event.type == KeyType.down) {
      value = (value - step).clamp(min, max);
      onChanged?.call(value);
      return true;
    }
  }
  return false;
}