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|
use crate::prelude::*;
use wasm_bindgen::JsCast as _;
pub(crate) fn connect(
url: &str,
orders: &mut impl Orders<crate::Msg>,
) -> WebSocket {
let ws = WebSocket::new(url).unwrap();
register_ws_handler(
WebSocket::set_onopen,
crate::Msg::Connected,
&ws,
orders,
);
register_ws_handler(
WebSocket::set_onclose,
crate::Msg::Disconnected,
&ws,
orders,
);
register_ws_handler(
WebSocket::set_onmessage,
crate::Msg::Message,
&ws,
orders,
);
register_ws_handler(
WebSocket::set_onerror,
crate::Msg::Error,
&ws,
orders,
);
ws
}
fn register_ws_handler<T, F>(
ws_cb_setter: fn(&WebSocket, Option<&js_sys::Function>),
msg: F,
ws: &web_sys::WebSocket,
orders: &mut impl Orders<crate::Msg>,
) where
T: wasm_bindgen::convert::FromWasmAbi + 'static,
F: Fn(T) -> crate::Msg + 'static,
{
let (app, msg_mapper) = (orders.clone_app(), orders.msg_mapper());
let closure = Closure::new(move |data| {
app.update(msg_mapper(msg(data)));
});
ws_cb_setter(ws, Some(closure.as_ref().unchecked_ref()));
closure.forget();
}
|
