From 2e8c7824c0f2946f6bf33fe0a20eabb779a91763 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pedro=20J=2E=20Est=C3=A9banez?= <pedrojrulez@gmail.com>
Date: Tue, 30 Jan 2018 20:39:53 +0100
Subject: [PATCH] Implement always-on-top for MacOS

Courtesy of @bruvzg.
---
 platform/osx/os_osx.h  |  2 ++
 platform/osx/os_osx.mm | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/platform/osx/os_osx.h b/platform/osx/os_osx.h
index 9423b6e1d6a..eecffa5c620 100644
--- a/platform/osx/os_osx.h
+++ b/platform/osx/os_osx.h
@@ -205,6 +205,8 @@ public:
 	virtual bool is_window_minimized() const;
 	virtual void set_window_maximized(bool p_enabled);
 	virtual bool is_window_maximized() const;
+	virtual void set_window_always_on_top(bool p_enabled);
+	virtual bool is_window_always_on_top() const;
 	virtual void request_attention();
 	virtual String get_joy_guid(int p_device) const;
 
diff --git a/platform/osx/os_osx.mm b/platform/osx/os_osx.mm
index 852e9834d42..bb48ae991d9 100644
--- a/platform/osx/os_osx.mm
+++ b/platform/osx/os_osx.mm
@@ -1891,6 +1891,20 @@ void OS_OSX::move_window_to_foreground() {
 	[window_object orderFrontRegardless];
 }
 
+void OS_OSX::set_window_always_on_top(bool p_enabled) {
+	if (is_window_always_on_top() == p_enabled)
+		return;
+
+	if (p_enabled)
+		[window_object setLevel:NSFloatingWindowLevel];
+	else
+		[window_object setLevel:NSNormalWindowLevel];
+}
+
+bool OS_OSX::is_window_always_on_top() const {
+	return [window_object level] == NSFloatingWindowLevel;
+}
+
 void OS_OSX::request_attention() {
 
 	[NSApp requestUserAttention:NSCriticalRequest];