From f6b15cb5621a35169ef92e83087ba7346d31b72c Mon Sep 17 00:00:00 2001
From: Manolis Papadeas <35376950+OverloadedOrama@users.noreply.github.com>
Date: Thu, 4 Nov 2021 02:46:12 +0200
Subject: [PATCH] Fixes #552

---
 src/Main.gd | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Main.gd b/src/Main.gd
index 1141bf3b2..8896521f0 100644
--- a/src/Main.gd
+++ b/src/Main.gd
@@ -289,6 +289,11 @@ func _notification(what : int) -> void:
 		MainLoop.NOTIFICATION_WM_MOUSE_EXIT: # if the mouse exits the window and another application has the focus set the fps to the idle fps
 			if !OS.is_window_focused() and Global.fps_limit_focus:
 				Engine.set_target_fps(Global.idle_fps)
+		MainLoop.NOTIFICATION_WM_FOCUS_IN:
+			var mouse_pos := get_global_mouse_position()
+			var viewport_rect := Rect2(Global.main_viewport.rect_global_position, Global.main_viewport.rect_size)
+			if viewport_rect.has_point(mouse_pos):
+				Global.has_focus = true
 
 
 func _on_files_dropped(_files : PoolStringArray, _screen : int) -> void: