DynamicNamespaces.js 4.1 KB

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  1. var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
  2. function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
  3. return new (P || (P = Promise))(function (resolve, reject) {
  4. function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
  5. function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
  6. function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
  7. step((generator = generator.apply(thisArg, _arguments || [])).next());
  8. });
  9. };
  10. var __generator = (this && this.__generator) || function (thisArg, body) {
  11. var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
  12. return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
  13. function verb(n) { return function (v) { return step([n, v]); }; }
  14. function step(op) {
  15. if (f) throw new TypeError("Generator is already executing.");
  16. while (_) try {
  17. 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;
  18. if (y = 0, t) op = [op[0] & 2, t.value];
  19. switch (op[0]) {
  20. case 0: case 1: t = op; break;
  21. case 4: _.label++; return { value: op[1], done: false };
  22. case 5: _.label++; y = op[1]; op = [0]; continue;
  23. case 7: op = _.ops.pop(); _.trys.pop(); continue;
  24. default:
  25. if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
  26. if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
  27. if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
  28. if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
  29. if (t[2]) _.ops.pop();
  30. _.trys.pop(); continue;
  31. }
  32. op = body.call(thisArg, _);
  33. } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
  34. if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
  35. }
  36. };
  37. import React, { useContext, useEffect, useState } from 'react';
  38. import I18nProvider, { InternalContext } from './I18nProvider';
  39. import useTranslation from './useTranslation';
  40. export default function DynamicNamespaces(_a) {
  41. var dynamic = _a.dynamic, _b = _a.namespaces, namespaces = _b === void 0 ? [] : _b, fallback = _a.fallback, children = _a.children;
  42. var config = useContext(InternalContext).config;
  43. var lang = useTranslation().lang;
  44. var _c = useState(false), loaded = _c[0], setLoaded = _c[1];
  45. var _d = useState([]), pageNs = _d[0], setPageNs = _d[1];
  46. var loadLocale = dynamic || config.loadLocaleFrom || (function () { return Promise.resolve({}); });
  47. function loadNamespaces() {
  48. return __awaiter(this, void 0, void 0, function () {
  49. var pageNamespaces;
  50. return __generator(this, function (_a) {
  51. switch (_a.label) {
  52. case 0:
  53. if (typeof loadLocale !== 'function')
  54. return [2];
  55. return [4, Promise.all(namespaces.map(function (ns) { return loadLocale(lang, ns); }))];
  56. case 1:
  57. pageNamespaces = _a.sent();
  58. setPageNs(pageNamespaces);
  59. setLoaded(true);
  60. return [2];
  61. }
  62. });
  63. });
  64. }
  65. useEffect(function () {
  66. loadNamespaces();
  67. }, [namespaces.join()]);
  68. if (!loaded)
  69. return fallback || null;
  70. return (React.createElement(I18nProvider, { lang: lang, namespaces: namespaces.reduce(function (obj, ns, i) {
  71. obj[ns] = pageNs[i];
  72. return obj;
  73. }, {}) }, children));
  74. }