From 102b1b351bce7a75be28c51ac70e19d50f786126 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Thu, 15 Dec 2022 14:17:19 +0100
Subject: [PATCH] Add null check,

Customer was seeing a crash in this method, don't have a repro but other uses of `_parent` are surrounded by a null check so this makes sense I think.
---
 native/Avalonia.Native/src/OSX/AvnWindow.mm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/native/Avalonia.Native/src/OSX/AvnWindow.mm b/native/Avalonia.Native/src/OSX/AvnWindow.mm
index 6611dcc73f..42c500716c 100644
--- a/native/Avalonia.Native/src/OSX/AvnWindow.mm
+++ b/native/Avalonia.Native/src/OSX/AvnWindow.mm
@@ -281,6 +281,9 @@
 
 - (void)windowDidBecomeKey:(NSNotification *_Nonnull)notification
 {
+    if (_parent == nullptr)
+        return;
+        
     _parent->BringToFront();
     
     dispatch_async(dispatch_get_main_queue(), ^{