From 1bd78220e2138a3ff0dea3609cafe8a3f80da763 Mon Sep 17 00:00:00 2001
From: Gokcehan <gokcehankara@gmail.com>
Date: Wed, 28 Apr 2021 18:50:24 +0300
Subject: [PATCH] avoid crash with dir preview when hidden changes

cc #615
---
 nav.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nav.go b/nav.go
index 885ab6e..5f15182 100644
--- a/nav.go
+++ b/nav.go
@@ -243,6 +243,10 @@ func (dir *dir) name() string {
 	if len(dir.files) == 0 {
 		return ""
 	}
+
+	dir.ind = max(dir.ind, 0)
+	dir.ind = min(dir.ind, len(dir.files)-1)
+
 	return dir.files[dir.ind].Name()
 }