From af80bfde799cca43c184fcf79f7a2380c3766f13 Mon Sep 17 00:00:00 2001
From: Wesley Kerfoot <wjak56@gmail.com>
Date: Thu, 13 Aug 2020 10:52:22 -0400
Subject: [PATCH] only get windowstack on focusin if needed

---
 src/nimwin.nim | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/nimwin.nim b/src/nimwin.nim
index effddb1..9feef51 100644
--- a/src/nimwin.nim
+++ b/src/nimwin.nim
@@ -574,10 +574,9 @@ when isMainModule:
 
     elif (ev.theType == FocusIn):
       let currentFocus = windowZipper.zipperFocus
-      let windowStack = map(toSeq(getChildren(display)), (w) => w.win)
-
       if currentFocus.isSome:
         if currentFocus.get != ev.xfocus.window:
+          let windowStack = map(toSeq(getChildren(display)), (w) => w.win)
           # restack it
           windowZipper.rhs = windowStack.reversed
           windowZipper.lhs = @[]