on-demand translation loading works now

src/index.js

@@ -10,8 +10,7 @@ import allMessages from './messages.json';
 import TinodeWeb from './views/tinode-web.jsx';
 import HashNavigation from './lib/navigation.js';
 
-/*
+// Allow loading translation strings for just one language.
-// Load just one language.
 const messageLoader = {
   'de': _ => import('./i18n.min/de.json'),
   'en': _ => import('./i18n.min/en.json'),
@@ -23,7 +22,6 @@ const messageLoader = {
   'zh': _ => import('./i18n.min/zh.json'),
   'zh-TW': _ => import('./i18n.min/zh-TW.json')
 };
-*/
 
 // Detect human language to use in the UI:
 //  Check parameters from URL hash #?hl=ru, then browser, then use 'en' as a fallback.
@@ -40,18 +38,16 @@ const normalized = language.replace('_', '-');
 const baseLanguage = normalized.split('-')[0].toLowerCase();
 
 // Try the full locale first, then the locale without the region code, fallback to 'en'.
-// const htmlLang = messageLoader[normalized] ? language : messageLoader[baseLanguage] ? baseLanguage : 'en';
+const htmlLang = messageLoader[normalized] ? language : messageLoader[baseLanguage] ? baseLanguage : 'en';
-// const messages = await messageLoader[htmlLang]();
-const htmlLang = allMessages[normalized] ? language : allMessages[baseLanguage] ? baseLanguage : 'en';
-const messages = allMessages[htmlLang];
 
 // Set lang attribute of the HTML element: <html lang="XX">
 document.getElementsByTagName('html')[0].setAttribute('lang', htmlLang);
 
 // Render the app.
 const root = createRoot(document.getElementById('mountPoint'));
+messageLoader[htmlLang]().then(messages =>
   root.render(
     <IntlProvider locale={language} messages={messages} textComponent={React.Fragment}>
       <TinodeWeb />
     </IntlProvider>
-);
+));

umd/index.dev.js

@@ -20706,6 +20706,36 @@ module.exports = JSON.parse('{"de":{"action_block_contact":"Kontakt blockieren",
 /******/ 		};
 /******/ 	})();
 /******/ 	
+/******/ 	/* webpack/runtime/create fake namespace object */
+/******/ 	(() => {
+/******/ 		var getProto = Object.getPrototypeOf ? (obj) => (Object.getPrototypeOf(obj)) : (obj) => (obj.__proto__);
+/******/ 		var leafPrototypes;
+/******/ 		// create a fake namespace object
+/******/ 		// mode & 1: value is a module id, require it
+/******/ 		// mode & 2: merge all properties of value into the ns
+/******/ 		// mode & 4: return value when already ns object
+/******/ 		// mode & 16: return value when it's Promise-like
+/******/ 		// mode & 8|1: behave like require
+/******/ 		__webpack_require__.t = function(value, mode) {
+/******/ 			if(mode & 1) value = this(value);
+/******/ 			if(mode & 8) return value;
+/******/ 			if(typeof value === 'object' && value) {
+/******/ 				if((mode & 4) && value.__esModule) return value;
+/******/ 				if((mode & 16) && typeof value.then === 'function') return value;
+/******/ 			}
+/******/ 			var ns = Object.create(null);
+/******/ 			__webpack_require__.r(ns);
+/******/ 			var def = {};
+/******/ 			leafPrototypes = leafPrototypes || [null, getProto({}), getProto([]), getProto(getProto)];
+/******/ 			for(var current = mode & 2 && value; typeof current == 'object' && !~leafPrototypes.indexOf(current); current = getProto(current)) {
+/******/ 				Object.getOwnPropertyNames(current).forEach((key) => (def[key] = () => (value[key])));
+/******/ 			}
+/******/ 			def['default'] = () => (value);
+/******/ 			__webpack_require__.d(ns, def);
+/******/ 			return ns;
+/******/ 		};
+/******/ 	})();
+/******/ 	
 /******/ 	/* webpack/runtime/define property getters */
 /******/ 	(() => {
 /******/ 		// define getter functions for harmony exports
@@ -20930,21 +20960,31 @@ __webpack_require__.r(__webpack_exports__);
 
 
 
+const messageLoader = {
+  'de': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_de_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/de.json */ "./src/i18n.min/de.json", 19)),
+  'en': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_en_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/en.json */ "./src/i18n.min/en.json", 19)),
+  'es': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_es_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/es.json */ "./src/i18n.min/es.json", 19)),
+  'fr': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_fr_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/fr.json */ "./src/i18n.min/fr.json", 19)),
+  'ko': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_ko_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/ko.json */ "./src/i18n.min/ko.json", 19)),
+  'ro': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_ro_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/ro.json */ "./src/i18n.min/ro.json", 19)),
+  'ru': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_ru_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/ru.json */ "./src/i18n.min/ru.json", 19)),
+  'zh': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_zh_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/zh.json */ "./src/i18n.min/zh.json", 19)),
+  'zh-TW': _ => __webpack_require__.e(/*! import() */ "src_i18n_min_zh-TW_json").then(__webpack_require__.t.bind(__webpack_require__, /*! ./i18n.min/zh-TW.json */ "./src/i18n.min/zh-TW.json", 19))
+};
 const {
   params
 } = _lib_navigation_js__WEBPACK_IMPORTED_MODULE_5__["default"].parseUrlHash(window.location.hash);
 const language = params && params.hl || navigator.languages && navigator.languages[0] || navigator.language || navigator.userLanguage || 'en';
 const normalized = language.replace('_', '-');
 const baseLanguage = normalized.split('-')[0].toLowerCase();
-const htmlLang = _messages_json__WEBPACK_IMPORTED_MODULE_3__[normalized] ? language : _messages_json__WEBPACK_IMPORTED_MODULE_3__[baseLanguage] ? baseLanguage : 'en';
+const htmlLang = messageLoader[normalized] ? language : messageLoader[baseLanguage] ? baseLanguage : 'en';
-const messages = _messages_json__WEBPACK_IMPORTED_MODULE_3__[htmlLang];
 document.getElementsByTagName('html')[0].setAttribute('lang', htmlLang);
 const root = (0,react_dom_client__WEBPACK_IMPORTED_MODULE_1__.createRoot)(document.getElementById('mountPoint'));
-root.render(react__WEBPACK_IMPORTED_MODULE_0___default().createElement(react_intl__WEBPACK_IMPORTED_MODULE_2__.IntlProvider, {
+messageLoader[htmlLang]().then(messages => root.render(react__WEBPACK_IMPORTED_MODULE_0___default().createElement(react_intl__WEBPACK_IMPORTED_MODULE_2__.IntlProvider, {
   locale: language,
   messages: messages,
   textComponent: (react__WEBPACK_IMPORTED_MODULE_0___default().Fragment)
-}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_views_tinode_web_jsx__WEBPACK_IMPORTED_MODULE_4__["default"], null)));
+}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_views_tinode_web_jsx__WEBPACK_IMPORTED_MODULE_4__["default"], null))));
 })();
 
 /******/ })()