use {
matetui::{
ratatui::{
backend::CrosstermBackend,
crossterm::{
event::{self},
execute,
terminal::{
disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen,
},
},
layout::{Constraint, Direction, Layout},
Terminal,
},
widgets::textarea::{Input, Key, TextArea},
},
ratatui::widgets::{Block, BorderType, Borders, Padding, Paragraph},
std::{cmp, io},
};
fn main() -> io::Result<()> {
let stdout = io::stdout();
let mut stdout = stdout.lock();
enable_raw_mode()?;
execute!(stdout, EnterAlternateScreen)?;
let backend = CrosstermBackend::new(stdout);
let mut term = Terminal::new(backend)?;
let mut textarea = TextArea::default().with_block(
Block::default()
.borders(Borders::ALL)
.border_type(BorderType::Rounded)
.title(" Your name ")
.padding(Padding::horizontal(1)),
);
loop {
term.draw(|f| {
const MIN_HEIGHT: usize = 1;
let height = cmp::max(textarea.lines().len(), MIN_HEIGHT) as u16 + 2;
let layout = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Length(height), Constraint::Min(1)])
.split(f.area());
f.render_widget(&textarea, layout[0]);
f.render_widget(Paragraph::new("Press <Esc> to exit"), layout[1]);
})?;
match event::read()?.into() {
Input { key: Key::Esc, .. }
| Input {
key: Key::Char('c'),
shift: false,
ctrl: true,
alt: false,
}
| Input {
key: Key::Enter,
ctrl: false,
shift: false,
alt: false,
} => break,
input => {
textarea.input(input);
}
}
}
disable_raw_mode()?;
execute!(term.backend_mut(), LeaveAlternateScreen)?;
term.show_cursor()?;
println!("Lines: {:?}", textarea.lines());
Ok(())
}