From e9edf1650b64da02612719735b250b3a4f49b40c Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike.lowis@gentex.com>
Date: Thu, 2 Feb 2017 12:40:00 -0500
Subject: [PATCH] Don't bother setting the callback if there is no selection
 owner

---
 lib/x11.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/x11.c b/lib/x11.c
index 63df657..b0b20f0 100644
--- a/lib/x11.c
+++ b/lib/x11.c
@@ -573,6 +573,8 @@ static void selrequest(XEvent* evnt) {
 bool x11_getsel(int selid, void(*cbfn)(char*)) {
     struct XSel* sel = &(Selections[selid]);
     if (sel->callback) return false;
+    if (XGetSelectionOwner(X.display, sel->atom) == None) 
+        return true;
     sel->callback = cbfn;    
     XConvertSelection(X.display, sel->atom, SelTarget, sel->atom, X.window, CurrentTime);
     XFlush(X.display);
-- 
2.51.0