input/
input.rs

1/*
2 * Copyright (c) 2025 Jasmine Tai. All rights reserved.
3 */
4
5//! A fixed-width text field.
6
7use line_ui::element::{Cursor, Direction, Gap, IntoElement};
8use line_ui::{Renderer, Style};
9use termion::event::{Event, Key};
10use termion::input::TermRead;
11use termion::raw::IntoRawMode;
12
13fn main() -> std::io::Result<()> {
14    let stdout = std::io::stdout().into_raw_mode()?;
15    let mut r = Renderer::new(stdout);
16
17    let mut name = String::new();
18
19    let mut events = std::io::stdin().events();
20    loop {
21        r.reset()?
22            .render((
23                "Enter your name: ".into_element(),
24                (name.into_element(), Cursor, Gap(1))
25                    .fixed_width(20)
26                    .truncated(Direction::Left)
27                    .styled(Style::bg(240)),
28            ))?
29            .finish()?;
30
31        let Some(event) = events.next().transpose()? else {
32            break;
33        };
34        match event {
35            Event::Key(Key::Char(ch)) if !ch.is_ascii_control() => name.push(ch),
36            Event::Key(Key::Char('\n' | '\r')) => break,
37            Event::Key(Key::Backspace) => {
38                name.pop();
39            }
40            _ => {}
41        }
42    }
43
44    r.clear()?;
45    drop(r);
46    println!("Your name is {name:?}");
47    Ok(())
48}
input/input.rs

input/
input.rs
