1use gpui::{App, AppContext as _, Context, Entity, EventEmitter, Global, ReadGlobal as _};
 2
 3pub fn init(cx: &mut App) {
 4    let extension_events = cx.new(ExtensionEvents::new);
 5    cx.set_global(GlobalExtensionEvents(extension_events));
 6}
 7
 8struct GlobalExtensionEvents(Entity<ExtensionEvents>);
 9
10impl Global for GlobalExtensionEvents {}
11
12/// An event bus for broadcasting extension-related events throughout the app.
13pub struct ExtensionEvents;
14
15impl ExtensionEvents {
16    /// Returns the global [`ExtensionEvents`].
17    pub fn global(cx: &App) -> Entity<Self> {
18        GlobalExtensionEvents::global(cx).0.clone()
19    }
20
21    fn new(_cx: &mut Context<Self>) -> Self {
22        Self
23    }
24
25    pub fn emit(&mut self, event: Event, cx: &mut Context<Self>) {
26        cx.emit(event)
27    }
28}
29
30#[derive(Clone)]
31pub enum Event {
32    ExtensionsUpdated,
33}
34
35impl EventEmitter<Event> for ExtensionEvents {}