From 1d697df1bcc014c133b5b3a2beee662f92123077 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Thu, 2 Sep 2021 10:16:20 +0200
Subject: [PATCH] Implement channel switching

---
 gpui/src/views/select.rs |  4 ++++
 zed/src/chat_panel.rs    | 12 ++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/gpui/src/views/select.rs b/gpui/src/views/select.rs
index cd7d912667d5343da124f95f36a9c7687ba278a4..b9e099a75c17f954a294f3150c6e264ea612ad17 100644
--- a/gpui/src/views/select.rs
+++ b/gpui/src/views/select.rs
@@ -75,6 +75,10 @@ impl Select {
         self.is_open = false;
         cx.notify();
     }
+
+    pub fn selected_index(&self) -> usize {
+        self.selected_item_ix
+    }
 }
 
 impl Entity for Select {
diff --git a/zed/src/chat_panel.rs b/zed/src/chat_panel.rs
index bf9d65327e52a5d6d70fd508351322c2cfe7cb22..1b757d3ea4183d3466be23471a8ba005c2478fbc 100644
--- a/zed/src/chat_panel.rs
+++ b/zed/src/chat_panel.rs
@@ -99,6 +99,18 @@ impl ChatPanel {
             this.init_active_channel(cx);
         })
         .detach();
+        cx.observe(&this.channel_select, |this, channel_select, cx| {
+            let selected_ix = channel_select.read(cx).selected_index();
+            let selected_channel = this.channel_list.update(cx, |channel_list, cx| {
+                let available_channels = channel_list.available_channels()?;
+                let channel_id = available_channels.get(selected_ix)?.id;
+                channel_list.get_channel(channel_id, cx)
+            });
+            if let Some(selected_channel) = selected_channel {
+                this.set_active_channel(selected_channel, cx);
+            }
+        })
+        .detach();
 
         this
     }