NodeFlowScope<T> class

An InheritedWidget that provides NodeFlowController to descendants.

This scope allows nodes and other widgets within the node flow to access the controller without explicit passing. This is particularly useful for:

• Nodes that need to call controller methods (e.g., resize callbacks)
• Custom widgets that need viewport information
• Plugins or extensions that need controller access

Usage

Access the controller in any descendant widget:

Widget build(BuildContext context) {
  final controller = NodeFlowScope.of<MyData>(context);
  // Use controller...
}

For optional access (when the widget might be outside the scope):

Widget build(BuildContext context) {
  final controller = NodeFlowScope.maybeOf<MyData>(context);
  if (controller != null) {
    // Use controller...
  }
}