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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
use crate::prelude::*;
use wasm_bindgen::JsCast as _;
#[derive(Clone)]
pub(crate) enum WebSocketEvent {
Connected(JsValue),
Disconnected(JsValue),
Message(MessageEvent),
Error(JsValue),
}
pub(crate) fn connect(
url: &str,
msg: fn(WebSocketEvent) -> crate::Msg,
orders: &mut impl Orders<crate::Msg>,
) -> WebSocket {
let ws = WebSocket::new(url).unwrap();
register_ws_handler(
WebSocket::set_onopen,
WebSocketEvent::Connected,
msg,
&ws,
orders,
);
register_ws_handler(
WebSocket::set_onclose,
WebSocketEvent::Disconnected,
msg,
&ws,
orders,
);
register_ws_handler(
WebSocket::set_onmessage,
WebSocketEvent::Message,
msg,
&ws,
orders,
);
register_ws_handler(
WebSocket::set_onerror,
WebSocketEvent::Error,
msg,
&ws,
orders,
);
ws
}
fn register_ws_handler<T, F>(
ws_cb_setter: fn(&WebSocket, Option<&js_sys::Function>),
msg: F,
ws_msg: fn(WebSocketEvent) -> crate::Msg,
ws: &web_sys::WebSocket,
orders: &mut impl Orders<crate::Msg>,
) where
T: wasm_bindgen::convert::FromWasmAbi + 'static,
F: Fn(T) -> WebSocketEvent + 'static,
{
let (app, msg_mapper) = (orders.clone_app(), orders.msg_mapper());
let closure = Closure::new(move |data| {
app.update(msg_mapper(ws_msg(msg(data))));
});
ws_cb_setter(ws, Some(closure.as_ref().unchecked_ref()));
closure.forget();
}
|
