1use std::fmt::Write;
2
3use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
4
5use crate::rendering::frame::Cursor;
6use crate::rendering::frame::Frame;
7use crate::rendering::renderer::Renderer;
8use crate::{SelectOption, ViewContext};
9
10use super::TestTerminal;
11
12fn frame_from_lines(lines: &[crate::line::Line], _width: u16, _rows: u16) -> Frame {
13 Frame::new(lines.to_vec())
14 .with_cursor(Cursor { row: lines.len().saturating_sub(1), col: 0, is_visible: true })
15 .clamp_cursor()
16}
17
18pub fn render_component(mut render: impl FnMut(&ViewContext) -> Frame, width: u16, rows: u16) -> TestTerminal {
19 let ctx = ViewContext::new((width, rows));
20 let frame = render(&ctx);
21 let terminal = TestTerminal::new(width, rows);
22 let mut renderer = Renderer::new(terminal, crate::theme::Theme::default(), (width, rows));
23 renderer.render_frame(|_| frame).unwrap();
24 renderer.writer().clone()
25}
26
27pub fn render_component_with_renderer(
28 mut render: impl FnMut(&ViewContext) -> Frame,
29 renderer: &mut Renderer<TestTerminal>,
30 width: u16,
31 rows: u16,
32) {
33 let ctx = ViewContext::new((width, rows));
34 let frame = render(&ctx);
35 renderer.render_frame(|_| frame).unwrap();
36}
37
38pub fn render_lines(lines: &[crate::line::Line], width: u16, rows: u16) -> TestTerminal {
39 render_component(|_| frame_from_lines(lines, width, rows), width, rows)
40}
41
42pub fn key(code: KeyCode) -> KeyEvent {
43 KeyEvent::new(code, KeyModifiers::NONE)
44}
45
46pub fn pad(text: &str, width: usize) -> String {
47 format!("{text:<width$}")
48}
49
50pub fn cols(parts: &[(&str, usize)]) -> String {
51 let mut out = String::new();
52 for (text, width) in parts {
53 let _ = write!(out, "{text:<width$}");
54 }
55 out.trim_end().to_string()
56}
57
58pub fn sample_options() -> Vec<SelectOption> {
59 vec![
60 SelectOption { value: "a".into(), title: "Alpha".into(), description: None },
61 SelectOption { value: "b".into(), title: "Beta".into(), description: None },
62 SelectOption { value: "c".into(), title: "Gamma".into(), description: None },
63 ]
64}