From d09b874244c8ef7385aff136acdaae6aae67ea7e Mon Sep 17 00:00:00 2001
From: Corbin Dunn <corbin>
Date: Thu, 4 Mar 2021 21:53:27 +0530
Subject: [PATCH] =?UTF-8?q?macOS/Ghost:=20Opt=20out=20of=20AppKit=E2=80=99?=
 =?UTF-8?q?s=20automatic=20window=20tabbing?=
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Since Blender is single-tabbed, this will prevent extraneous
tab-related options from appearing in "Window" menu in case AppKit's
internals change.

Reviewed By: #platform_macos, sebbas, ankitm
Differential Revision: https://developer.blender.org/D10606
---
 intern/ghost/intern/GHOST_SystemCocoa.mm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/intern/ghost/intern/GHOST_SystemCocoa.mm b/intern/ghost/intern/GHOST_SystemCocoa.mm
index 3b20c95c954..4a23b30e078 100644
--- a/intern/ghost/intern/GHOST_SystemCocoa.mm
+++ b/intern/ghost/intern/GHOST_SystemCocoa.mm
@@ -646,6 +646,11 @@ GHOST_TSuccess GHOST_SystemCocoa::init()
       [NSApp setDelegate:appDelegate];
     }
 
+    // AppKit provides automatic window tabbing. Blender is a single-tabbed application without a
+    // macOS tab bar, and should explicitly opt-out of this. This is also controlled by the macOS
+    // user default #NSWindowTabbingEnabled.
+    NSWindow.allowsAutomaticWindowTabbing = NO;
+
     [NSApp finishLaunching];
 
     [pool drain];