From e49fc9f4b1a14963d28ee1936a0e5ca677df3be3 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Wed, 19 Oct 2022 10:45:51 +0200
Subject: [PATCH] Prevent `Room` from screen-sharing twice

---
 crates/call/src/room.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/crates/call/src/room.rs b/crates/call/src/room.rs
index 4553772095..d3d462e54a 100644
--- a/crates/call/src/room.rs
+++ b/crates/call/src/room.rs
@@ -615,6 +615,8 @@ impl Room {
     pub fn share_screen(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
         if self.status.is_offline() {
             return Task::ready(Err(anyhow!("room is offline")));
+        } else if self.is_screen_sharing() {
+            return Task::ready(Err(anyhow!("screen was already shared")));
         }
 
         cx.spawn_weak(|this, mut cx| async move {