orbital_base_components/
callback.rs

1use std::{ops::Deref, sync::Arc};
2
3/// Cloneable `Send + Sync` handler for component props and overlay callbacks.
4#[derive(Clone)]
5pub struct Handler<A = (), R = ()>(Arc<dyn Fn(A) -> R + Send + Sync + 'static>);
6
7impl Handler<(), ()> {
8    pub fn new<F>(f: F) -> Self
9    where
10        F: Fn() + Send + Sync + 'static,
11    {
12        Self(Arc::new(move |_| f()))
13    }
14}
15
16impl<A, R> Handler<A, R> {
17    pub fn with<F>(f: F) -> Self
18    where
19        F: Fn(A) -> R + Send + Sync + 'static,
20    {
21        Self(Arc::new(f))
22    }
23
24    pub fn run(&self, arg: A) -> R {
25        (self.0)(arg)
26    }
27}
28
29impl<A> Handler<A, ()> {
30    pub fn on<F>(f: F) -> Self
31    where
32        F: Fn(A) + Send + Sync + 'static,
33    {
34        Self(Arc::new(f))
35    }
36}
37
38impl<A, R> Deref for Handler<A, R> {
39    type Target = Arc<dyn Fn(A) -> R + Send + Sync + 'static>;
40
41    fn deref(&self) -> &Self::Target {
42        &self.0
43    }
44}
45
46impl<F, A> From<F> for Handler<A, ()>
47where
48    F: Fn(A) + Send + Sync + 'static,
49{
50    fn from(value: F) -> Self {
51        Self::on(value)
52    }
53}
orbital_base_components/callback.rs

orbital_base_components/
callback.rs
