204 lines
11 KiB
Plaintext
204 lines
11 KiB
Plaintext
"use strict";
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var __assign = (this && this.__assign) || function () {
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__assign = Object.assign || function(t) {
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for (var s, i = 1, n = arguments.length; i < n; i++) {
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s = arguments[i];
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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t[p] = s[p];
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}
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return t;
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};
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return __assign.apply(this, arguments);
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};
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
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return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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function verb(n) { return function (v) { return step([n, v]); }; }
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function step(op) {
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if (f) throw new TypeError("Generator is already executing.");
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while (g && (g = 0, op[0] && (_ = 0)), _) try {
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if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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if (y = 0, t) op = [op[0] & 2, t.value];
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switch (op[0]) {
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case 0: case 1: t = op; break;
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case 4: _.label++; return { value: op[1], done: false };
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case 5: _.label++; y = op[1]; op = [0]; continue;
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case 7: op = _.ops.pop(); _.trys.pop(); continue;
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default:
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if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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if (t[2]) _.ops.pop();
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_.trys.pop(); continue;
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}
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op = body.call(thisArg, _);
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} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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}
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};
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.useWebSocket = void 0;
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var react_1 = require("react");
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var react_dom_1 = require("react-dom");
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var constants_1 = require("./constants");
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var create_or_join_1 = require("./create-or-join");
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var get_url_1 = require("./get-url");
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var proxy_1 = __importDefault(require("./proxy"));
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var util_1 = require("./util");
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var useWebSocket = function (url, options, connect) {
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if (options === void 0) { options = constants_1.DEFAULT_OPTIONS; }
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if (connect === void 0) { connect = true; }
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var _a = (0, react_1.useState)(null), lastMessage = _a[0], setLastMessage = _a[1];
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var _b = (0, react_1.useState)({}), readyState = _b[0], setReadyState = _b[1];
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var lastJsonMessage = (0, react_1.useMemo)(function () {
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if (!options.disableJson && lastMessage) {
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try {
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return JSON.parse(lastMessage.data);
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}
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catch (e) {
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return constants_1.UNPARSABLE_JSON_OBJECT;
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}
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}
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return null;
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}, [lastMessage, options.disableJson]);
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var convertedUrl = (0, react_1.useRef)(null);
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var webSocketRef = (0, react_1.useRef)(null);
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var startRef = (0, react_1.useRef)(function () { return void 0; });
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var reconnectCount = (0, react_1.useRef)(0);
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var lastMessageTime = (0, react_1.useRef)(Date.now());
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var messageQueue = (0, react_1.useRef)([]);
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var webSocketProxy = (0, react_1.useRef)(null);
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var optionsCache = (0, react_1.useRef)(options);
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optionsCache.current = options;
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var readyStateFromUrl = convertedUrl.current && readyState[convertedUrl.current] !== undefined ?
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readyState[convertedUrl.current] :
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url !== null && connect === true ?
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constants_1.ReadyState.CONNECTING :
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constants_1.ReadyState.UNINSTANTIATED;
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var stringifiedQueryParams = options.queryParams ? JSON.stringify(options.queryParams) : null;
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var sendMessage = (0, react_1.useCallback)(function (message, keep) {
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var _a;
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if (keep === void 0) { keep = true; }
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if (constants_1.isEventSourceSupported && webSocketRef.current instanceof EventSource) {
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console.warn('Unable to send a message from an eventSource');
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return;
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}
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if (((_a = webSocketRef.current) === null || _a === void 0 ? void 0 : _a.readyState) === constants_1.ReadyState.OPEN) {
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(0, util_1.assertIsWebSocket)(webSocketRef.current, optionsCache.current.skipAssert);
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webSocketRef.current.send(message);
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}
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else if (keep) {
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messageQueue.current.push(message);
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}
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}, []);
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var sendJsonMessage = (0, react_1.useCallback)(function (message, keep) {
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if (keep === void 0) { keep = true; }
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sendMessage(JSON.stringify(message), keep);
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}, [sendMessage]);
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var getWebSocket = (0, react_1.useCallback)(function () {
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if (optionsCache.current.share !== true || (constants_1.isEventSourceSupported && webSocketRef.current instanceof EventSource)) {
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return webSocketRef.current;
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}
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if (webSocketProxy.current === null && webSocketRef.current) {
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(0, util_1.assertIsWebSocket)(webSocketRef.current, optionsCache.current.skipAssert);
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webSocketProxy.current = (0, proxy_1.default)(webSocketRef.current, startRef);
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}
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return webSocketProxy.current;
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}, []);
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(0, react_1.useEffect)(function () {
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if (url !== null && connect === true) {
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var removeListeners_1;
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var expectClose_1 = false;
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var createOrJoin_1 = true;
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var start_1 = function () { return __awaiter(void 0, void 0, void 0, function () {
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var _a, protectedSetLastMessage, protectedSetReadyState;
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return __generator(this, function (_b) {
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switch (_b.label) {
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case 0:
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_a = convertedUrl;
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return [4 /*yield*/, (0, get_url_1.getUrl)(url, optionsCache)];
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case 1:
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_a.current = _b.sent();
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if (convertedUrl.current === null) {
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console.error('Failed to get a valid URL. WebSocket connection aborted.');
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convertedUrl.current = 'ABORTED';
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(0, react_dom_1.flushSync)(function () { return setReadyState(function (prev) { return (__assign(__assign({}, prev), { ABORTED: constants_1.ReadyState.CLOSED })); }); });
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return [2 /*return*/];
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}
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protectedSetLastMessage = function (message) {
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if (!expectClose_1) {
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(0, react_dom_1.flushSync)(function () { return setLastMessage(message); });
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}
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};
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protectedSetReadyState = function (state) {
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if (!expectClose_1) {
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(0, react_dom_1.flushSync)(function () { return setReadyState(function (prev) {
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var _a;
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return (__assign(__assign({}, prev), (convertedUrl.current && (_a = {}, _a[convertedUrl.current] = state, _a))));
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}); });
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}
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};
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if (createOrJoin_1) {
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removeListeners_1 = (0, create_or_join_1.createOrJoinSocket)(webSocketRef, convertedUrl.current, protectedSetReadyState, optionsCache, protectedSetLastMessage, startRef, reconnectCount, lastMessageTime, sendMessage);
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}
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return [2 /*return*/];
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}
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});
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}); };
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startRef.current = function () {
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if (!expectClose_1) {
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if (webSocketProxy.current)
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webSocketProxy.current = null;
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removeListeners_1 === null || removeListeners_1 === void 0 ? void 0 : removeListeners_1();
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start_1();
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}
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};
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start_1();
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return function () {
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expectClose_1 = true;
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createOrJoin_1 = false;
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if (webSocketProxy.current)
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webSocketProxy.current = null;
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removeListeners_1 === null || removeListeners_1 === void 0 ? void 0 : removeListeners_1();
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setLastMessage(null);
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};
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}
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else if (url === null || connect === false) {
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reconnectCount.current = 0; // reset reconnection attempts
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setReadyState(function (prev) {
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var _a;
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return (__assign(__assign({}, prev), (convertedUrl.current && (_a = {}, _a[convertedUrl.current] = constants_1.ReadyState.CLOSED, _a))));
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});
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}
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}, [url, connect, stringifiedQueryParams, sendMessage]);
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(0, react_1.useEffect)(function () {
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if (readyStateFromUrl === constants_1.ReadyState.OPEN) {
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messageQueue.current.splice(0).forEach(function (message) {
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sendMessage(message);
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});
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}
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}, [readyStateFromUrl]);
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return {
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sendMessage: sendMessage,
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sendJsonMessage: sendJsonMessage,
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lastMessage: lastMessage,
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lastJsonMessage: lastJsonMessage,
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readyState: readyStateFromUrl,
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getWebSocket: getWebSocket,
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};
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};
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exports.useWebSocket = useWebSocket;
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//# sourceMappingURL=use-websocket.js.map |