Function chargrid_event_routine::event_or_peek_with_handled

pub fn event_or_peek_with_handled<EP, A, X, F>(
    event_or_peek: EP, 
    arg: A, 
    f: F
) -> Handled<X, A> where
    EP: EventOrPeek,
    F: FnOnce(A, EP::Event) -> Handled<X, A>,