File size: 1,914 Bytes
1e92f2d | 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 | let source;
const eventCallbacks = [];
function getSocketProtocol(assetPrefix) {
let protocol = location.protocol;
try {
protocol = new URL(assetPrefix).protocol;
} catch (_) {}
return protocol === "http:" ? "ws" : "wss";
}
export function addMessageListener(cb) {
eventCallbacks.push(cb);
}
export function sendMessage(data) {
if (!source || source.readyState !== source.OPEN) return;
return source.send(data);
}
export function connectHMR(options) {
const { timeout = 5 * 1000 } = options;
function init() {
if (source) source.close();
console.log("[HMR] connecting...");
function handleOnline() {
const connected = {
type: "turbopack-connected"
};
eventCallbacks.forEach((cb)=>{
cb(connected);
});
if (options.log) console.log("[HMR] connected");
}
function handleMessage(event) {
const message = {
type: "turbopack-message",
data: JSON.parse(event.data)
};
eventCallbacks.forEach((cb)=>{
cb(message);
});
}
function handleDisconnect() {
source.close();
setTimeout(init, timeout);
}
const { hostname, port } = location;
const protocol = getSocketProtocol(options.assetPrefix || "");
const assetPrefix = options.assetPrefix.replace(/^\/+/, "");
let url = `${protocol}://${hostname}:${port}${assetPrefix ? `/${assetPrefix}` : ""}`;
if (assetPrefix.startsWith("http")) {
url = `${protocol}://${assetPrefix.split("://")[1]}`;
}
source = new window.WebSocket(`${url}${options.path}`);
source.onopen = handleOnline;
source.onerror = handleDisconnect;
source.onmessage = handleMessage;
}
init();
}
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