From 7c7182483f50edae81f92bd4d4ad627f1b3ca57c Mon Sep 17 00:00:00 2001
From: bruvzg <7645683+bruvzg@users.noreply.github.com>
Date: Thu, 28 Mar 2019 15:36:51 +0200
Subject: [PATCH] [macOS] Allow non-resizeable windows to enter fullscreen
 mode.

---
 platform/osx/os_osx.mm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/platform/osx/os_osx.mm b/platform/osx/os_osx.mm
index b45d0d80e6c..d27742bdf12 100644
--- a/platform/osx/os_osx.mm
+++ b/platform/osx/os_osx.mm
@@ -271,6 +271,8 @@ static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeSt
 
 - (void)windowDidExitFullScreen:(NSNotification *)notification {
 	OS_OSX::singleton->zoomed = false;
+	if (!OS_OSX::singleton->resizable)
+		[OS_OSX::singleton->window_object setStyleMask:[OS_OSX::singleton->window_object styleMask] & ~NSWindowStyleMaskResizable];
 }
 
 - (void)windowDidChangeBackingProperties:(NSNotification *)notification {
@@ -2300,6 +2302,8 @@ void OS_OSX::set_window_fullscreen(bool p_enabled) {
 	if (zoomed != p_enabled) {
 		if (layered_window)
 			set_window_per_pixel_transparency_enabled(false);
+		if (!resizable)
+			[window_object setStyleMask:[window_object styleMask] | NSWindowStyleMaskResizable];
 		[window_object toggleFullScreen:nil];
 	}
 	zoomed = p_enabled;
@@ -2314,7 +2318,7 @@ void OS_OSX::set_window_resizable(bool p_enabled) {
 
 	if (p_enabled)
 		[window_object setStyleMask:[window_object styleMask] | NSWindowStyleMaskResizable];
-	else
+	else if (!zoomed)
 		[window_object setStyleMask:[window_object styleMask] & ~NSWindowStyleMaskResizable];
 
 	resizable = p_enabled;