From 6def0bb7f0529f2c930afff66fefa0b800125be0 Mon Sep 17 00:00:00 2001
From: NiLuJe <ninuje@gmail.com>
Date: Fri, 16 Apr 2021 01:06:00 +0200
Subject: [PATCH] FrontLight: Workaround potential crashes when swiping the
 frontlight bar.

This whole widget is a mess.
---
 frontend/ui/widget/frontlightwidget.lua | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/frontend/ui/widget/frontlightwidget.lua b/frontend/ui/widget/frontlightwidget.lua
index 2f166d284..5fd241670 100644
--- a/frontend/ui/widget/frontlightwidget.lua
+++ b/frontend/ui/widget/frontlightwidget.lua
@@ -627,6 +627,12 @@ function FrontLightWidget:naturalLightConfigClose()
 end
 
 function FrontLightWidget:onTapProgress(arg, ges_ev)
+    -- The throttling has a tendency to wreak a bit of a havoc,
+    -- so, if the widget hasn't been repainted yet, go away.
+    if not self.fl_group.dimen or not self.light_frame.dimen then
+        return true
+    end
+
     if ges_ev.pos:intersectWith(self.fl_group.dimen) then
         -- Unschedule any pending updates.
         UIManager:unschedule(self.update)