mirror of
https://github.com/element-hq/element-web
synced 2024-11-27 03:36:07 +03:00
Lots of changes to languageHandler
* Replace callbacks with promises * Move plain functions to top level * De-duplicate bits that fetched languages.json * Take full language preference list from the browser if we can get it, rather than just the first.
This commit is contained in:
David Baker
parent
db45e99536
commit
39dbc4c6e1
1 changed files with 80 additions and 96 deletions
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@ -37,131 +37,115 @@ export function _t(...args) {
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return counterpart.translate(...args);
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}
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export function setLanguage(languages) {
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request(i18nFolder + 'languages.json', function(err, response, body) {
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function getLanguage(langPath, langCode, callback) {
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let response_return = {};
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let resp_raw = {};
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request(
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{ method: "GET", url: langPath },
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(err, response, body) => {
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if (err || response.status < 200 || response.status >= 300) {
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if (response) {
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if (response.status == 404 || (response.status == 0 && body == '')) {
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resp_raw = {};
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}
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}
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const resp = {err: err, response: resp_raw};
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err = resp['err'];
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const response_cb = resp['response'];
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callback(err, response_cb, langCode);
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return;
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}
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export function setLanguage(preferredLangs) {
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if (!Array.isArray(preferredLangs)) {
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preferredLangs = [preferredLangs];
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}
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response_return = JSON.parse(body);
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callback(null, response_return, langCode);
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return;
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}
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);
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return;
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}
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let langToUse;
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let availLangs;
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return getLangsJson().then((result) => {
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availLangs = result;
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function registerTranslations(err, langJson, langCode){
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if (err !== null) {
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var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
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Modal.createDialog(ErrorDialog, {
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title: counterpart.translate('Error changing language'),
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description: counterpart.translate('Riot was unable to find the correct Data for the selected Language.'),
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button: counterpart.translate("OK"),
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});
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return;
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} else {
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counterpart.registerTranslations(langCode, langJson);
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for (let i = 0; i < preferredLangs.length; ++i) {
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if (availLangs.hasOwnProperty(preferredLangs[i])) {
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langToUse = preferredLangs[i];
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}
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}
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let languageFiles = {};
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if(err){
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console.error(err);
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return;
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} else {
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if (body) {
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languageFiles = JSON.parse(body);
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} else {
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languageFiles = JSON.parse('{"en": "en_EN.json"}');
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}
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if (!langToUse) {
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throw new Error("Unable to find an appropriate language");
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}
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return getLanguage(i18nFolder + availLangs[langToUse]);
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}).then((langData) => {
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counterpart.registerTranslations(langToUse, langData);
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counterpart.setLocale(langToUse);
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UserSettingsStore.setLocalSetting('language', langToUse);
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console.log("set language to " + langToUse);
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const isValidFirstLanguage = (languageFiles.hasOwnProperty(languages[0]));
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var validLanguageKey = "";
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if ((isValidFirstLanguage) || (languages.length==2 && languageFiles.hasOwnProperty(languages[1]))) {
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validLanguageKey = (isValidFirstLanguage) ? languages[0] : languages[1];
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getLanguage(i18nFolder + languageFiles[validLanguageKey], validLanguageKey, registerTranslations);
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counterpart.setLocale(validLanguageKey);
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UserSettingsStore.setLocalSetting('language', validLanguageKey);
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console.log("set language to "+validLanguageKey);
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} else {
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console.log("didnt find any language file");
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// Set 'en' as fallback language:
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if (langToUse != "en") {
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return getLanguage(i18nFolder + availLangs['en']);
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}
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//Set 'en' as fallback language:
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if (validLanguageKey!="en") {
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getLanguage(i18nFolder + languageFiles['en'], 'en', registerTranslations);
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}
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counterpart.setFallbackLocale('en');
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}).then((langData) => {
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if (langData) counterpart.registerTranslations('en', langData);
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});
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};
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export function getAllLanguageKeysFromJson() {
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let deferred = q.defer();
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request(
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{ method: "GET", url: i18nFolder + 'languages.json' },
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(err, response, body) => {
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if (err || response.status < 200 || response.status >= 300) {
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if (response) {
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if (response.status == 404 || (response.status == 0 && body == '')) {
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deferred.resolve({});
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}
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}
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deferred.reject({err: err, response: response});
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return;
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}
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var languages = JSON.parse(body);
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// If no language is found, fallback to 'en':
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if (!languages) {
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languages = [{"en": "en_EN.json"}];
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}
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const languageKeys = Object.keys(languages);
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deferred.resolve(languageKeys);
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}
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);
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return deferred.promise;
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return getLangsJson().then((langs) => {
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return Object.keys(langs);
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});
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}
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export function getLanguageFromBrowser() {
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return navigator.languages[0] || navigator.language || navigator.userLanguage;
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export function getLanguagesFromBrowser() {
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if (navigator.languages) return navigator.languages;
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if (navigator.language) return [navigator.language]
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return [navigator.userLanguage];
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};
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/**
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* Turns a language string, normalises it,
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* (see normalizeLanguageKey) into an array of language strings
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* with fallback to generic languages
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* (eg. 'pt-BR' => ['pt-br', 'pt'])
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*
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* @param {string} language The input language string
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* @return {string[]} List of normalised languages
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*/
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export function getNormalizedLanguageKeys(language) {
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if (!language) {
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return;
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}
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const languageKeys = [];
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const normalizedLanguage = this.normalizeLanguageKey(language);
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const languageParts = normalizedLanguage.split('-');
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if (languageParts.length==2 && languageParts[0]==languageParts[1]) {
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if (languageParts.length == 2 && languageParts[0] == languageParts[1]) {
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languageKeys.push(languageParts[0]);
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} else {
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languageKeys.push(normalizedLanguage);
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if (languageParts.length==2) {
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if (languageParts.length == 2) {
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languageKeys.push(languageParts[0]);
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}
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}
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return languageKeys;
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};
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/**
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* Returns a language string with underscores replaced with
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* hyphens, and lowercased.
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*/
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export function normalizeLanguageKey(language) {
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return language.toLowerCase().replace("_","-");
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};
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function getLangsJson() {
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const deferred = q.defer();
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request(
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{ method: "GET", url: i18nFolder + 'languages.json' },
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(err, response, body) => {
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if (err || response.status < 200 || response.status >= 300) {
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deferred.reject({err: err, response: response});
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return;
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}
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deferred.resolve(JSON.parse(body));
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}
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);
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return deferred.promise;
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}
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function getLanguage(langPath) {
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const deferred = q.defer();
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let response_return = {};
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request(
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{ method: "GET", url: langPath },
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(err, response, body) => {
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if (err || response.status < 200 || response.status >= 300) {
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deferred.reject({err: err, response: response});
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return;
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}
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deferred.resolve(JSON.parse(body));
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}
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);
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return deferred.promise;
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}
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