navigation of views is now easier

src/ui.rs

@@ -633,7 +633,7 @@ fn draw_overlay(frame: &mut Frame<'_>, app: &mut App) {
                 Line::from("↑↓/jk move   Insert/n new   Enter/F2 edit   F3/c categories"),
                 Line::from("F4/d done    F5 note       F6/p properties F7/Space mark"),
                 Line::from("F8/v views   F9 categories F10/m menu      / search"),
-                Line::from("[ ] views    r prerequisites   Delete trash/recover"),
+                Line::from("h/l views ([/])   r prerequisites   Delete trash/recover"),
                 Line::from("Ctrl-S save   q quit"),
                 Line::from(""),
                 Line::from("Mouse: click items, view tabs, or function-key tiles."),
@@ -1259,6 +1259,34 @@ mod tests {
         assert!(screen.contains("When"));
     }
 
+    #[test]
+    fn main_screen_h_and_l_cycle_views_with_wraparound() {
+        let directory = tempdir().unwrap();
+        let path = directory.path().join("view-navigation.agnd");
+        let db = Database::open(&path).unwrap();
+        let mut app = App::new_with_preferences(
+            db,
+            path,
+            AppPreferences::default(),
+            directory.path().join("preferences.toml"),
+        )
+        .unwrap();
+        assert!(app.views.len() > 1);
+
+        app.handle_key(KeyEvent::new(KeyCode::Char('l'), KeyModifiers::NONE))
+            .unwrap();
+        assert_eq!(app.view_index, 1);
+        app.handle_key(KeyEvent::new(KeyCode::Char('h'), KeyModifiers::NONE))
+            .unwrap();
+        assert_eq!(app.view_index, 0);
+        app.handle_key(KeyEvent::new(KeyCode::Char('h'), KeyModifiers::NONE))
+            .unwrap();
+        assert_eq!(app.view_index, app.views.len() - 1);
+        app.handle_key(KeyEvent::new(KeyCode::Char(']'), KeyModifiers::NONE))
+            .unwrap();
+        assert_eq!(app.view_index, 0);
+    }
+
     #[test]
     fn note_editor_renders_and_saves_entered_line_breaks() {
         let d = tempdir().unwrap();