01_hello_world/
01_hello_world.rs

1//! Example 01: Hello World
2//!
3//! The absolute minimum telex app. If this doesn't work, nothing will.
4//!
5//! Run with: cargo run --example 01_hello_world
6
7use crossterm::event::KeyCode;
8use telex::prelude::*;
9
10telex::require_api!(0, 2);
11
12fn main() {
13    telex::run_with_theme(App, telex::theme::Theme::nord()).unwrap();
14}
15
16struct App;
17
18impl Component for App {
19    fn render(&self, cx: Scope) -> View {
20        let show_help = state!(cx, || false);
21
22        // F1 toggles help
23        cx.use_command(
24            KeyBinding::key(KeyCode::F(1)),
25            with!(show_help => move || show_help.update(|v| *v = !*v)),
26        );
27
28        View::vstack()
29            .child(View::styled_text("Hello World").bold().build())
30            .child(View::gap(1))
31            .child(View::text("Welcome to Telex!"))
32            .child(View::gap(1))
33            .child(
34                View::styled_text("F1 for help • Ctrl+Q to quit")
35                    .dim()
36                    .build(),
37            )
38            .child(
39                View::modal()
40                    .visible(show_help.get())
41                    .title("Example 01: Hello World")
42                    .on_dismiss(with!(show_help => move || show_help.set(false)))
43                    .child(
44                        View::vstack()
45                            .child(View::styled_text("What you're seeing").bold().build())
46                            .child(View::text(
47                                "• Basic app structure with struct + Component trait",
48                            ))
49                            .child(View::text(
50                                "• View::text() and View::styled_text() for display",
51                            ))
52                            .child(View::text("• View::vstack() for vertical layout"))
53                            .child(View::gap(1))
54                            .child(View::styled_text("Key concepts").bold().build())
55                            .child(View::text("• Every Telex app implements Component"))
56                            .child(View::text("• render() returns a View tree"))
57                            .child(View::text("• No state yet - this is purely static"))
58                            .child(View::gap(1))
59                            .child(View::styled_text("Next up").bold().build())
60                            .child(View::text("→ 02_counter: add state and interactivity"))
61                            .child(View::gap(1))
62                            .child(View::styled_text("Press Escape to close").dim().build())
63                            .build(),
64                    )
65                    .build(),
66            )
67            .build()
68    }
69}
01_hello_world/01_hello_world.rs

01_hello_world/
01_hello_world.rs
