zed/crates/gpui/examples/uniform_list.rs

#![cfg_attr(target_family = "wasm", no_main)]

use gpui::{
    App, Bounds, Context, Window, WindowBounds, WindowOptions, div, prelude::*, px, rgb, size,
    uniform_list,
};
use gpui_platform::application;

struct UniformListExample {}

impl Render for UniformListExample {
    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        div().size_full().bg(rgb(0xffffff)).child(
            uniform_list(
                "entries",
                50,
                cx.processor(|_this, range, _window, _cx| {
                    let mut items = Vec::new();
                    for ix in range {
                        let item = ix + 1;

                        items.push(
                            div()
                                .id(ix)
                                .px_2()
                                .cursor_pointer()
                                .on_click(move |_event, _window, _cx| {
                                    println!("clicked Item {item:?}");
                                })
                                .child(format!("Item {item}")),
                        );
                    }
                    items
                }),
            )
            .h_full(),
        )
    }
}

fn run_example() {
    application().run(|cx: &mut App| {
        let bounds = Bounds::centered(None, size(px(300.0), px(300.0)), cx);
        cx.open_window(
            WindowOptions {
                window_bounds: Some(WindowBounds::Windowed(bounds)),
                ..Default::default()
            },
            |_, cx| cx.new(|_| UniformListExample {}),
        )
        .unwrap();
    });
}

#[cfg(not(target_family = "wasm"))]
fn main() {
    run_example();
}

#[cfg(target_family = "wasm")]
#[wasm_bindgen::prelude::wasm_bindgen(start)]
pub fn start() {
    gpui_platform::web_init();
    run_example();
}