From 147268157cf703f91eb703e96c3d2c6887293714 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Thu, 15 Sep 2022 12:15:40 +0200
Subject: [PATCH] Animate popup window as if it were an `NSMenu`

---
 crates/gpui/src/platform/mac/window.rs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/crates/gpui/src/platform/mac/window.rs b/crates/gpui/src/platform/mac/window.rs
index f21428a1a83ffd78b0cc9833d0d6c3bdcfb046c0..107870d9e60172ac1c78b3383de458edc345570c 100644
--- a/crates/gpui/src/platform/mac/window.rs
+++ b/crates/gpui/src/platform/mac/window.rs
@@ -475,11 +475,20 @@ impl Window {
                 native_window.center();
             }
 
-            native_window.makeKeyAndOrderFront_(nil);
             match options.kind {
                 WindowKind::Normal => native_window.setLevel_(NSNormalWindowLevel),
-                WindowKind::PopUp => native_window.setLevel_(NSPopUpWindowLevel),
+                WindowKind::PopUp => {
+                    #[allow(non_upper_case_globals)]
+                    const NSWindowAnimationBehaviorUtilityWindow: NSInteger = 4;
+
+                    native_window.setLevel_(NSPopUpWindowLevel);
+                    let _: () = msg_send![
+                        native_window,
+                        setAnimationBehavior: NSWindowAnimationBehaviorUtilityWindow
+                    ];
+                }
             }
+            native_window.makeKeyAndOrderFront_(nil);
 
             window.0.borrow().move_traffic_light();
             pool.drain();