From b01d21484f752c19cd2f3df3d50e90e45868bcb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ole=20J=C3=B8rgen=20Br=C3=B8nner?= <olejorgenb@yahoo.no>
Date: Thu, 10 Jan 2019 19:24:29 +0100
Subject: [PATCH] Bugfix: Tolerate removal of monitor while extension is
 disabled

NPE in setMonitor if old monitor was gone on enable.

Eg. suspend, disconnect monitor, resume
---
 tiling.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tiling.js b/tiling.js
index 47e56cd..9991fb8 100644
--- a/tiling.js
+++ b/tiling.js
@@ -180,7 +180,9 @@ class Space extends Array {
         let oldSpace = oldSpaces.get(workspace);
         this.targetX = 0;
         if (oldSpace) {
-            monitor = Main.layoutManager.monitors[oldSpace.monitor.index];
+            let oldMonitor = Main.layoutManager.monitors[oldSpace.monitor.index];
+            if (oldMonitor)
+                monitor = oldMonitor;
         }
         this.setMonitor(monitor, false);