canvas 1.0.1

2D Canvas API that streams all drawing commands to a connected browser.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

extern crate hyper;
extern crate futures;

use std::thread;

use self::hyper::header::ContentLength;
use self::hyper::server::{Http, Request, Response, Service};
use self::hyper::{StatusCode, Method};

#[derive(Clone)]
struct Server {
    html: String,
}

impl Service for Server {
    type Request = Request;
    type Response = Response;
    type Error = hyper::Error;
    type Future = futures::future::FutureResult<Self::Response, Self::Error>;

    fn call(&self, req: Request) -> Self::Future {
        let (status, content) = match req.method() {
            &Method::Get => {
                match req.uri().as_ref() {
                    "/" => (StatusCode::Ok, self.html.clone()),
                    _ => (StatusCode::NotFound, "404".to_string()),
                }
            }
            _ => (StatusCode::MethodNotAllowed, "502".to_string()),
        };

        futures::future::ok(
            Response::new()
                .with_header(ContentLength(content.len() as u64))
                .with_status(status)
                .with_body(content),
        )
    }
}

use std::net::SocketAddr;

pub(crate) fn start(addr: SocketAddr, html: String) {
    thread::spawn(move || {
        let server = Server { html };
        let server = Http::new().bind(&addr, move || Ok(server.clone())).unwrap();
        println!(
            "HTTP server running on http://{}",
            server.local_addr().unwrap()
        );
        server.run().unwrap();
    });
}