tui-textarea/examples/tuirs_minimal.rs

// Use `crossterm` v0.25 for `tui` backend.
use crossterm_025 as crossterm;

use crossterm::event::{DisableMouseCapture, EnableMouseCapture};
use crossterm::terminal::{
    EnterAlternateScreen, LeaveAlternateScreen, disable_raw_mode, enable_raw_mode,
};
use std::io;
use tui::Terminal;
use tui::backend::CrosstermBackend;
use tui::widgets::{Block, Borders};
use tui_textarea::{Input, Key, TextArea};

fn main() -> io::Result<()> {
    let stdout = io::stdout();
    let mut stdout = stdout.lock();

    enable_raw_mode()?;
    crossterm::execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
    let backend = CrosstermBackend::new(stdout);
    let mut term = Terminal::new(backend)?;

    let mut textarea = TextArea::default();
    textarea.set_block(
        Block::default()
            .borders(Borders::ALL)
            .title("Crossterm Minimal Example"),
    );

    loop {
        term.draw(|f| {
            f.render_widget(&textarea, f.size());
        })?;
        match crossterm::event::read()?.into() {
            Input { key: Key::Esc, .. } => break,
            input => {
                textarea.input(input);
            }
        }
    }

    disable_raw_mode()?;
    crossterm::execute!(
        term.backend_mut(),
        LeaveAlternateScreen,
        DisableMouseCapture
    )?;
    term.show_cursor()?;

    println!("Lines: {:?}", textarea.lines());
    Ok(())
}