Check client, which may be null on x11 views
Check client, which may be null on x11 views

UIKit0/wlc,Earnestly/wlc,scarabeusiv/wlc,Enerccio/ewlc,UIKit0/wlc,yohanesu75/wlc,ammen99/wlc,scarabeusiv/wlc,SirCmpwn/wlc,ammen99/wlc,ss1h2a3tw/wlc,Enerccio/ewlc,yohanesu75/wlc,lkundrak/wlc,Cloudef/wlc,SirCmpwn/wlc,vially/wlc,gpyh/wlc,lkundrak/wlc,vially/wlc,Cloudef/wlc,Earnestly/wlc,ss1h2a3tw/wlc,gpyh/wlc