layoutManager: Return null monitor if focusIndex is invalid
https://bugzilla.gnome.org/show_bug.cgi?id=788882
(cherry picked from commit 996dd74157
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@ -558,6 +558,8 @@ var LayoutManager = new Lang.Class({
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},
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get focusMonitor() {
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get focusMonitor() {
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if (this.focusIndex < 0)
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return null;
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return this.monitors[this.focusIndex];
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return this.monitors[this.focusIndex];
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},
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},
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