Remove workspace -> channel dependency

crates/channel/src/channel_store.rs

@@ -2,6 +2,7 @@ mod channel_index;
 
 use crate::{channel_buffer::ChannelBuffer, channel_chat::ChannelChat};
 use anyhow::{anyhow, Result};
+use channel_index::ChannelIndex;
 use client::{Client, Subscription, User, UserId, UserStore};
 use collections::{hash_map, HashMap, HashSet};
 use futures::{channel::mpsc, future::Shared, Future, FutureExt, StreamExt};
@@ -14,7 +15,11 @@ use serde_derive::{Deserialize, Serialize};
 use std::{borrow::Cow, hash::Hash, mem, ops::Deref, sync::Arc, time::Duration};
 use util::ResultExt;
 
-use self::channel_index::ChannelIndex;
+pub fn init(client: &Arc<Client>, user_store: ModelHandle<UserStore>, cx: &mut AppContext) {
+    let channel_store =
+        cx.add_model(|cx| ChannelStore::new(client.clone(), user_store.clone(), cx));
+    cx.set_global(channel_store);
+}
 
 pub const RECONNECT_TIMEOUT: Duration = Duration::from_secs(30);
 
@@ -71,6 +76,10 @@ enum OpenedModelHandle<E: Entity> {
 }
 
 impl ChannelStore {
+    pub fn global(cx: &AppContext) -> ModelHandle<Self> {
+        cx.global::<ModelHandle<Self>>().clone()
+    }
+
     pub fn new(
         client: Arc<Client>,
         user_store: ModelHandle<UserStore>,