m3_lightmeter/lib/utils/selectable_provider.dart

import 'package:flutter/material.dart';

enum SelectableAspect { list, selected }

class SelectableInheritedModel<T> extends InheritedModel<SelectableAspect> {
  const SelectableInheritedModel({
    super.key,
    required this.values,
    required this.selected,
    required super.child,
  });

  final List<T> values;
  final T selected;

  @override
  bool updateShouldNotify(SelectableInheritedModel oldWidget) => true;

  @override
  bool updateShouldNotifyDependent(
    SelectableInheritedModel oldWidget,
    Set<SelectableAspect> dependencies,
  ) {
    if (dependencies.contains(SelectableAspect.list)) {
      return true;
    } else if (dependencies.contains(SelectableAspect.selected)) {
      return selected != oldWidget.selected;
    } else {
      return false;
    }
  }
}