From 58ec19578a5ae4a1c2bf5305ecc47b7821b55a94 Mon Sep 17 00:00:00 2001
From: omer <omerabdi@protonmail.com>
Date: Sun, 8 Oct 2023 22:01:06 +0300
Subject: [PATCH] add circular scrolling to the list of images.

---
 src/app/state.rs | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/src/app/state.rs b/src/app/state.rs
index 66d0ed3..569e46b 100644
--- a/src/app/state.rs
+++ b/src/app/state.rs
@@ -74,17 +74,28 @@ impl<'a> AppState<'a> {
             ..
         } = self
         {
-            if *selected_index < images.len() - 1 {
-                *selected_index += 1;
+            *selected_index += 1;
+            if *selected_index >= images.len() {
+                *selected_index = 0;
             }
         }
     }
 
     pub fn decrement_index(&mut self) {
-        if let Self::Initialized { selected_index, .. } = self {
-            if *selected_index > 0 {
-                *selected_index -= 1;
+        if let Self::Initialized {
+            selected_index,
+            paths: images,
+            ..
+        } = self
+        {
+            if images.is_empty() {
+                return;
+            }
+
+            if *selected_index == 0 {
+                *selected_index = images.len();
             }
+            *selected_index -= 1;
         }
     }