From bcaaab3c212c690bbe0f1c6d75abc425fc321e93 Mon Sep 17 00:00:00 2001
From: ChristianVisintin <christian.visintin1997@gmail.com>
Date: Sat, 5 Dec 2020 21:09:07 +0100
Subject: [PATCH] Fixed underflow

---
 src/ui/activities/filetransfer_activity/session.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/ui/activities/filetransfer_activity/session.rs b/src/ui/activities/filetransfer_activity/session.rs
index a1b0a5b..3a54d34 100644
--- a/src/ui/activities/filetransfer_activity/session.rs
+++ b/src/ui/activities/filetransfer_activity/session.rs
@@ -592,7 +592,10 @@ impl FileTransferActivity {
                 // Set index; keep if possible, otherwise set to last item
                 self.local.index = match self.local.files.get(self.local.index) {
                     Some(_) => self.local.index,
-                    None => self.local.files.len() - 1,
+                    None => match self.local.files.len() {
+                        0 => 0,
+                        _ => self.local.files.len() - 1,
+                    }
                 };
                 // Sort files
                 self.local.sort_files_by_name();
@@ -620,7 +623,10 @@ impl FileTransferActivity {
                 // Set index; keep if possible, otherwise set to last item
                 self.remote.index = match self.remote.files.get(self.remote.index) {
                     Some(_) => self.remote.index,
-                    None => self.remote.files.len() - 1,
+                    None => match self.remote.files.len() {
+                        0 => 0,
+                        _ => self.remote.files.len() - 1,
+                    }
                 };
                 // Sort files
                 self.remote.sort_files_by_name();