onNativeEvent method

void onNativeEvent(Map event)

Routes a typed native event (zoom/lens/focus) to the matching stream.

Called by YOLOView from its event-channel listener; safe to invoke from other native bridges that surface the same typed events.

Implementation

void onNativeEvent(Map<dynamic, dynamic> event) {
  final type = event['type'];
  if (type is! String) return;
  switch (type) {
    case 'zoom':
      final value = (event['value'] as num?)?.toDouble();
      if (value != null && !_zoomController.isClosed) {
        _zoomController.add(value);
      }
      break;
    case 'lens':
      final label = event['label'];
      if (label is String && !_lensController.isClosed) {
        _lensController.add(label);
      }
      break;
    case 'focus':
      final x = (event['x'] as num?)?.toDouble();
      final y = (event['y'] as num?)?.toDouble();
      if (x != null && y != null && !_focusController.isClosed) {
        _focusController.add(Offset(x, y));
      }
      break;
  }
}