@expo/cli
Version:
99 lines (98 loc) • 3.26 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
startReactDevToolsProxyAsync: ()=>startReactDevToolsProxyAsync,
closeReactDevToolsProxy: ()=>closeReactDevToolsProxy,
addReactDevToolsReloadListener: ()=>addReactDevToolsReloadListener
});
function _assert() {
const data = /*#__PURE__*/ _interopRequireDefault(require("assert"));
_assert = function() {
return data;
};
return data;
}
function _events() {
const data = require("events");
_events = function() {
return data;
};
return data;
}
function _ws() {
const data = /*#__PURE__*/ _interopRequireDefault(require("ws"));
_ws = function() {
return data;
};
return data;
}
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
let serverInstance = null;
const eventEmitter = new (_events()).EventEmitter();
/**
* Private command to support DevTools frontend reload.
*
* The react-devtools maintains state between frontend(webpage) and backend(app).
* If we reload the frontend without reloading the app, the react-devtools will stuck on incorrect state.
* We introduce this special reload command.
* As long as the frontend reload, we will close app's WebSocket connection and tell app to reconnect again.
*/ const RELOAD_COMMAND = "Expo::RELOAD";
async function startReactDevToolsProxyAsync(options) {
if (serverInstance != null) {
return;
}
var ref;
serverInstance = new (_ws()).default.WebSocketServer({
port: (ref = options == null ? void 0 : options.port) != null ? ref : 8097
});
serverInstance.on("connection", function connection(ws) {
ws.on("message", function message(rawData, isBinary) {
(0, _assert().default)(!isBinary);
const data = rawData.toString();
if (data === RELOAD_COMMAND) {
closeAllOtherClients(ws);
eventEmitter.emit(RELOAD_COMMAND);
return;
}
serverInstance == null ? void 0 : serverInstance.clients.forEach(function each(client) {
if (client !== ws && client.readyState === _ws().default.OPEN) {
client.send(data, {
binary: isBinary
});
}
});
});
});
serverInstance.on("close", function() {
serverInstance = null;
});
}
function closeReactDevToolsProxy() {
serverInstance == null ? void 0 : serverInstance.close();
serverInstance = null;
}
function addReactDevToolsReloadListener(listener) {
eventEmitter.addListener(RELOAD_COMMAND, listener);
}
/**
* Close all other WebSocket clients other than the current `self` client
*/ function closeAllOtherClients(self) {
serverInstance == null ? void 0 : serverInstance.clients.forEach(function each(client) {
if (client !== self && client.readyState === _ws().default.OPEN) {
client.close();
}
});
}
//# sourceMappingURL=ReactDevToolsProxy.js.map