of static method

AbstractControl<Object>? of(
  1. BuildContext context, {
  2. bool listen = true,
})

Returns the nearest model up its widget tree.

If listen is true (default value), all the dependents widgets will rebuild each time the model change.

listen: false is necessary if want to avoid rebuilding the context when model changes.

Implementation

static AbstractControl<Object>? of(
  BuildContext context, {
  bool listen = true,
}) {
  if (listen) {
    return context
        .dependOnInheritedWidgetOfExactType<FormControlInheritedStreamer>()
        ?.control;
  }

  final element =
      context
          .getElementForInheritedWidgetOfExactType<
            FormControlInheritedStreamer
          >();
  return element == null
      ? null
      : (element.widget as FormControlInheritedStreamer).control;
}