From 40b0cd7a901fdab5bb3573dfabb3b0b8ca709cfd Mon Sep 17 00:00:00 2001
From: Frank Villaro-Dixon <frank@villaro-dixon.eu>
Date: Thu, 16 May 2024 15:23:34 +0200
Subject: [PATCH] main menu: fix int overflow

Signed-off-by: Frank Villaro-Dixon <frank@villaro-dixon.eu>
---
 src/apps.rs | 17 +++++++++++++++++
 src/ui.rs   |  4 ++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/apps.rs b/src/apps.rs
index 4c9bfd9..ad92285 100644
--- a/src/apps.rs
+++ b/src/apps.rs
@@ -8,6 +8,23 @@ pub struct MainMenu {
     pub names: Vec<String>,
 }
 
+impl MainMenu {
+    pub fn selected_name(&self) -> &str {
+        &self.names[self.selected_id]
+    }
+
+    pub fn go_left(&mut self) {
+        if self.selected_id > 0 {
+            self.selected_id -= 1;
+        }
+    }
+    pub fn go_right(&mut self) {
+        if self.selected_id < self.names.len() - 1 {
+            self.selected_id += 1;
+        }
+    }
+}
+
 pub struct AppBase {
     name: String,
     pub main_menu: MainMenu,
diff --git a/src/ui.rs b/src/ui.rs
index cde188a..e7a4be5 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -44,13 +44,13 @@ impl BeoUi {
             Beo5Event::LeftButtonPressed => {
                 println!("Left button pressed");
                 if let Some(selected_app) = self.current_app_mut() {
-                    selected_app.base_mut().main_menu.selected_id += 1;
+                    selected_app.base_mut().main_menu.go_left();
                 }
             }
             Beo5Event::RightButtonPressed => {
                 println!("Right button pressed");
                 if let Some(selected_app) = self.current_app_mut() {
-                    selected_app.base_mut().main_menu.selected_id -= 1;
+                    selected_app.base_mut().main_menu.go_right();
                 }
             }
             _ => {