From 4f0ffdcdaf39409c4dbcb4d39fd7f05c85f818a0 Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Thu, 27 Jan 2022 15:38:10 -0800
Subject: [PATCH] Avoid panic when closing the last tab in a pane, due to
 calling `activate_item`

---
 crates/workspace/src/pane.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/workspace/src/pane.rs b/crates/workspace/src/pane.rs
index 5cbd9fe559f9908c73f2132d14205a887e5c1868..a112213795951cae3607cbb8a72d4d0c487ba892 100644
--- a/crates/workspace/src/pane.rs
+++ b/crates/workspace/src/pane.rs
@@ -312,7 +312,9 @@ impl Pane {
     pub fn activate_item(&mut self, index: usize, cx: &mut ViewContext<Self>) {
         if index < self.item_views.len() {
             let prev_active_item_ix = mem::replace(&mut self.active_item_index, index);
-            if prev_active_item_ix != self.active_item_index {
+            if prev_active_item_ix != self.active_item_index
+                && prev_active_item_ix < self.item_views.len()
+            {
                 self.item_views[prev_active_item_ix].1.deactivated(cx);
             }
             self.update_active_toolbar(cx);