feat: deselect items

Cargo.toml

@@ -4,5 +4,5 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-crossterm = "0.26"
-ratatui = { version = "0.20", features = ["crossterm"] }
+crossterm = "0.29"
+ratatui = { version = "0.30", features = ["crossterm"] }

src/main.rs

@@ -6,10 +6,10 @@ use crossterm::execute;
 use crossterm::terminal::{
     EnterAlternateScreen, LeaveAlternateScreen, disable_raw_mode, enable_raw_mode,
 };
+use ratatui::Terminal;
 use ratatui::backend::CrosstermBackend;
 use ratatui::layout::{Constraint, Direction, Layout};
 use ratatui::style::{Color, Modifier, Style};
-use ratatui::terminal::Terminal;
 use ratatui::widgets::{Block, Borders, List, ListItem, ListState};
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
@@ -37,7 +37,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     loop {
         terminal.draw(|f| {
-            let size = f.size();
+            let size = f.area();
             let chunks = Layout::default()
                 .direction(Direction::Vertical)
                 .constraints([Constraint::Min(0)].as_ref())
@@ -92,12 +92,17 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
                     if let Some(i) = state.selected()
                         && i < marked.len()
                     {
+                        assert!(i < marked.len());
+                        if marked[i] {
+                            marked[i] = false;
+                        } else {
                             marked[i] = true;
                             // move cursor down
-                        let next = if i + 1 < lines.len() { i + 1 } else { i };
+                            let next = lines.len().min(i + 1);
                             state.select(Some(next));
                         }
                     }
+                }
                 _ => {}
             }
         }