From 11595184d5e87520073dbba37b0afd8cce1d3a2e Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Fri, 3 Jun 2022 11:39:14 +0100
Subject: [PATCH] fix traffic light setting.

---
 native/Avalonia.Native/src/OSX/WindowImpl.mm | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/native/Avalonia.Native/src/OSX/WindowImpl.mm b/native/Avalonia.Native/src/OSX/WindowImpl.mm
index ef2a91ef14..f49b676ce6 100644
--- a/native/Avalonia.Native/src/OSX/WindowImpl.mm
+++ b/native/Avalonia.Native/src/OSX/WindowImpl.mm
@@ -32,11 +32,11 @@ void WindowImpl::HideOrShowTrafficLights() {
     }
 
     bool wantsChrome = (_extendClientHints & AvnSystemChrome) || (_extendClientHints & AvnPreferSystemChrome);
-    bool hasTrafficLights = _isClientAreaExtended ? wantsChrome : _decorations != SystemDecorationsFull;
+    bool hasTrafficLights = _isClientAreaExtended ? wantsChrome : _decorations == SystemDecorationsFull;
     
-    [[Window standardWindowButton:NSWindowCloseButton] setHidden:hasTrafficLights];
-    [[Window standardWindowButton:NSWindowMiniaturizeButton] setHidden:hasTrafficLights];
-    [[Window standardWindowButton:NSWindowZoomButton] setHidden:hasTrafficLights];
+    [[Window standardWindowButton:NSWindowCloseButton] setHidden:!hasTrafficLights];
+    [[Window standardWindowButton:NSWindowMiniaturizeButton] setHidden:!hasTrafficLights];
+    [[Window standardWindowButton:NSWindowZoomButton] setHidden:!hasTrafficLights];
 }
 
 void WindowImpl::OnInitialiseNSWindow(){