cli_tutor/ui/
input_bar.rs

1use crate::app::App;
2use ratatui::{
3    layout::Rect,
4    style::{Color, Modifier, Style},
5    text::{Line, Span},
6    widgets::{Block, Borders, Paragraph},
7    Frame,
8};
9
10pub fn render(app: &App, frame: &mut Frame, area: Rect) {
11    let before_cursor = &app.input[..app.cursor_pos];
12    let at_cursor = app.input[app.cursor_pos..].chars().next();
13    let after_cursor = if let Some(c) = at_cursor {
14        &app.input[app.cursor_pos + c.len_utf8()..]
15    } else {
16        ""
17    };
18
19    let cursor_char = at_cursor.map(|c| c.to_string()).unwrap_or(" ".to_string());
20
21    let line = Line::from(vec![
22        Span::styled(
23            "$ ",
24            Style::default()
25                .fg(Color::Green)
26                .add_modifier(Modifier::BOLD),
27        ),
28        Span::raw(before_cursor.to_string()),
29        // cursor block
30        Span::styled(
31            cursor_char,
32            Style::default().bg(Color::White).fg(Color::Black),
33        ),
34        Span::raw(after_cursor.to_string()),
35    ]);
36
37    let block = Block::default().borders(Borders::ALL).title("Command");
38
39    frame.render_widget(Paragraph::new(line).block(block), area);
40}
cli_tutor/ui/input_bar.rs

cli_tutor/ui/
input_bar.rs
