1use gpui::AppContext;
 2
 3#[derive(Debug, Default)]
 4pub struct StaffMode(pub bool);
 5
 6impl std::ops::Deref for StaffMode {
 7    type Target = bool;
 8
 9    fn deref(&self) -> &Self::Target {
10        &self.0
11    }
12}
13
14/// Despite what the type system requires me to tell you, the init function will only be called a once
15/// as soon as we know that the staff mode is enabled.
16pub fn staff_mode<F: FnMut(&mut AppContext) + 'static>(cx: &mut AppContext, mut init: F) {
17    if **cx.default_global::<StaffMode>() {
18        init(cx)
19    } else {
20        let mut once = Some(());
21        cx.observe_global::<StaffMode, _>(move |cx| {
22            if **cx.global::<StaffMode>() && once.take().is_some() {
23                init(cx);
24            }
25        })
26        .detach();
27    }
28}
29
30/// Immediately checks and runs the init function if the staff mode is not enabled.
31/// This is only included for symettry with staff_mode() above
32pub fn not_staff_mode<F: FnOnce(&mut AppContext) + 'static>(cx: &mut AppContext, init: F) {
33    if !**cx.default_global::<StaffMode>() {
34        init(cx)
35    }
36}