use crate::*;
/// Event source
pub trait Input: Send + Sync + Sized {
    /// Type of input event
    type Event;
    /// Result of handling input
    type Handled;
    /// Currently handled event
    fn event (&self) -> &Self::Event;
    /// Whether component should exit
    fn is_done (&self) -> bool;
    /// Mark component as done
    fn done (&self);
}