awesome-uiwidgets/AwesomeUIWidgets/Assets/Scripts/Widgets/inherited_user.cs

using ChatComponents;
using Unity.UIWidgets.foundation;
using Unity.UIWidgets.widgets;

namespace UIWidgetsSample
{
    internal class InheritedUser : InheritedWidget
    {
        /// Represents current logged in user. Used to determine message's author.
        public readonly User user;

        /// Creates [InheritedWidget] from a provided [types.User] class
        public InheritedUser(
            User user,
            Widget child,
            Key key = null
        ) : base(key, child)
        {
            this.user = user;
        }

        public static InheritedUser of(BuildContext context)
        {
            return context.dependOnInheritedWidgetOfExactType<InheritedUser>();
        }

        public override bool updateShouldNotify(InheritedWidget oldWidget)
        {
            var result = user.id != ((InheritedUser) oldWidget).user.id;
            return result;
        }
    }
}