Notifications

Buttons four levels deep raise toasts in a host that sits somewhere else entirely, with no parameters or callbacks passed between them.

How it works

Try it: send a few notifications, hide the listeners, send more, then show them again.

• NotifyButton publishes ToastRequested (an IEvent) and updates NotificationStats (an IState).
• ToastHost subscribes with [Subscribe(Scope = ScopeKind.Root)], so it hears publishes from anywhere.
• EventHistory only counts events received while mounted. Events have no current value, so a late subscriber misses earlier ones.
• SentCounter reads state, so it always shows the full total, including notifications sent while it was hidden.
• This page runs on Interactive Server, so the hub lives in the user's circuit. Another browser tab has its own circuit and its own hub.