PropsReadonlyNode<T extends Widget> class

A reactive node that tracks widget property changes.

This node allows reactive code (like useComputed or useEffect) to depend on widget properties. When the widget is updated with new properties, this node notifies all its subscribers to re-run.

Usage

The node's value returns the current widget instance, providing reactive access to all widget properties.

With SetupWidget

class UserCard extends SetupWidget<UserCard> {
  final String name;
  final int age;

  const UserCard({super.key, required this.name, required this.age});

  @override
  setup(context, props) {
    // Access props reactively - rebuilds when name changes
    final displayName = useComputed(() => 'User: ${props().name}');

    return () => Text(displayName.value);
  }
}

With SetupMixin

class _MyWidgetState extends State<MyWidget> with SetupMixin<MyWidget> {
  @override
  setup(context) {
    // Access props via mixin's getter
    final displayName = useComputed(() => 'User: ${props.name}');

    return () => Text(displayName.value);
  }
}

Implementation Notes

• Implements ReadonlyNode for compatibility with Jolt's reactive system
• Tracks dependencies automatically when accessed in reactive contexts
• Disposed when the associated BuildContext is unmounted