fix(strider): update out of range index in files (#1425)

2 files changed, 8 insertions, 6 deletions

diff --git a/default-plugins/strider/src/main.rs b/default-plugins/strider/src/main.rs
index 75f03513d..4ce0b0434 100644
--- a/default-plugins/strider/src/main.rs
+++ b/default-plugins/strider/src/main.rs
@@ -27,7 +27,7 @@ impl ZellijPlugin for State {
                 }
                 Key::Down | Key::Char('j') => {
                     let next = self.selected().saturating_add(1);
-                    *self.selected_mut() = min(self.files.len() - 1, next);
+                    *self.selected_mut() = min(self.files.len().saturating_sub(1), next);
                 }
                 Key::Right | Key::Char('\n') | Key::Char('l') if !self.files.is_empty() => {
                     self.traverse_dir_or_open_file();
diff --git a/default-plugins/strider/src/state.rs b/default-plugins/strider/src/state.rs
index 7c19cb695..81d44a61d 100644
--- a/default-plugins/strider/src/state.rs
+++ b/default-plugins/strider/src/state.rs
@@ -34,12 +34,14 @@ impl State {
         self.hide_hidden_files = !self.hide_hidden_files;
     }
     pub fn traverse_dir_or_open_file(&mut self) {
-        match self.files[self.selected()].clone() {
-            FsEntry::Dir(p, _) => {
-                self.path = p;
-                refresh_directory(self);
+        if let Some(f) = self.files.get(self.selected()) {
+            match f.clone() {
+                FsEntry::Dir(p, _) => {
+                    self.path = p;
+                    refresh_directory(self);
+                }
+                FsEntry::File(p, _) => open_file(p.strip_prefix(ROOT).unwrap()),
             }
-            FsEntry::File(p, _) => open_file(p.strip_prefix(ROOT).unwrap()),
         }
     }
 }