layoutManager: Return null monitor if focusIndex is invalid

https://bugzilla.gnome.org/show_bug.cgi?id=788882 (cherry picked from commit 996dd74157)
2018-06-28 14:51:48 +00:00 · 2018-06-28 14:51:48 +00:00 · 81db908339
commit 81db908339
parent 706a2259b8
1 changed files with 2 additions and 0 deletions
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@ -558,6 +558,8 @@ var LayoutManager = new Lang.Class({
    },

    get focusMonitor() {
+        if (this.focusIndex < 0)
+            return null;
        return this.monitors[this.focusIndex];
    },