handle method

@override bool handle(UIEvent event, dynamic activatedValue)

Handles updating the selection model from MouseEvent activations.

If event is not a MouseEvent it will not be handled. This method does handle mouse events even if shift is not held down.

Implementation

@override
bool handle(UIEvent event, dynamic activatedValue) {
  if (selection is! MultiSelectionModel || event is! MouseEvent) return false;
  // The deselect label is never shown with a MultiSelectionModel, so it's
  // safe to assume activatedValue is of type T at this point.
  _handleClick(event, activatedValue as T);
  return true;
}