From 2a7770177b2b8e930a4f29e6cf0d63e6c9276ace Mon Sep 17 00:00:00 2001
From: Henrik Friedrichsen <henrik@affekt.org>
Date: Sun, 24 Mar 2019 01:02:08 +0100
Subject: [PATCH] bugfix: make sure len is in bounds of usize

---
 src/ui/listview.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ui/listview.rs b/src/ui/listview.rs
index 22fc8d0..1b399e8 100644
--- a/src/ui/listview.rs
+++ b/src/ui/listview.rs
@@ -45,8 +45,8 @@ impl<I: ListItem> ListView<I> {
     }
 
     pub fn move_focus_to(&mut self, target: usize) {
-        let len = self.content.read().unwrap().len();
-        self.selected = min(target, len - 1);
+        let len = self.content.read().unwrap().len().saturating_sub(1);
+        self.selected = min(target, len);
         self.scrollbar.scroll_to(self.selected);
     }