From 846cdb411243d817a451023dbf8c6272b1509b9a Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Mon, 6 Sep 2021 15:33:54 +0100
Subject: [PATCH] correctly implement fullscreen mode so that app ca be started
 in fullscreen.

---
 native/Avalonia.Native/src/OSX/window.mm | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/native/Avalonia.Native/src/OSX/window.mm b/native/Avalonia.Native/src/OSX/window.mm
index 14fe60ab0b..35c97f1701 100644
--- a/native/Avalonia.Native/src/OSX/window.mm
+++ b/native/Avalonia.Native/src/OSX/window.mm
@@ -641,6 +641,7 @@ private:
         [Window setCanBecomeKeyAndMain];
         [Window disableCursorRects];
         [Window setTabbingMode:NSWindowTabbingModeDisallowed];
+        [Window setCollectionBehavior:NSWindowCollectionBehaviorFullScreenPrimary];
     }
     
     void HideOrShowTrafficLights ()
@@ -1091,14 +1092,7 @@ private:
     {
         _fullScreenActive = true;
         
-        [Window setHasShadow:YES];
-        [Window setTitleVisibility:NSWindowTitleVisible];
-        [Window setTitlebarAppearsTransparent:NO];
         [Window setTitle:_lastTitle];
-        
-        Window.styleMask = Window.styleMask | NSWindowStyleMaskTitled | NSWindowStyleMaskResizable;
-        Window.styleMask = Window.styleMask & ~NSWindowStyleMaskFullSizeContentView;
-    
         [Window toggleFullScreen:nullptr];
     }