From b340141c6a05604c18bdd229d8baf418d4ca22fb Mon Sep 17 00:00:00 2001
From: Wesley Kerfoot <wjak56@gmail.com>
Date: Thu, 13 Aug 2020 11:05:13 -0400
Subject: [PATCH] make sure we're only restacking with windows we should manage

---
 src/nimwin.nim | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/nimwin.nim b/src/nimwin.nim
index 9feef51..3f350df 100644
--- a/src/nimwin.nim
+++ b/src/nimwin.nim
@@ -576,7 +576,12 @@ when isMainModule:
       let currentFocus = windowZipper.zipperFocus
       if currentFocus.isSome:
         if currentFocus.get != ev.xfocus.window:
-          let windowStack = map(toSeq(getChildren(display)), (w) => w.win)
+          var windowStack : seq[TWindow] = @[]
+
+          # Restack everything and make sure we should track it
+          for window in getChildren(display):
+            if display.shouldTrackWindow(window.win.addr):
+              windowStack &= window.win
           # restack it
           windowZipper.rhs = windowStack.reversed
           windowZipper.lhs = @[]