react-i18next
Version:
Internationalization for react done right. Using the i18next i18n ecosystem.
62 lines • 2.25 kB
JavaScript
export const warn = (i18n, code, msg, rest) => {
const args = [msg, {
code,
...(rest || {})
}];
if (i18n?.services?.logger?.forward) {
return i18n.services.logger.forward(args, 'warn', 'react-i18next::', true);
}
if (isString(args[0])) args[0] = `react-i18next:: ${args[0]}`;
if (i18n?.services?.logger?.warn) {
i18n.services.logger.warn(...args);
} else if (console?.warn) {
console.warn(...args);
}
};
const alreadyWarned = {};
export const warnOnce = (i18n, code, msg, rest) => {
if (isString(msg) && alreadyWarned[msg]) return;
if (isString(msg)) alreadyWarned[msg] = new Date();
warn(i18n, code, msg, rest);
};
const loadedClb = (i18n, cb) => () => {
if (i18n.isInitialized) {
cb();
} else {
const initialized = () => {
setTimeout(() => {
i18n.off('initialized', initialized);
}, 0);
cb();
};
i18n.on('initialized', initialized);
}
};
export const loadNamespaces = (i18n, ns, cb) => {
i18n.loadNamespaces(ns, loadedClb(i18n, cb));
};
export const loadLanguages = (i18n, lng, ns, cb) => {
if (isString(ns)) ns = [ns];
if (i18n.options.preload && i18n.options.preload.indexOf(lng) > -1) return loadNamespaces(i18n, ns, cb);
ns.forEach(n => {
if (i18n.options.ns.indexOf(n) < 0) i18n.options.ns.push(n);
});
i18n.loadLanguages(lng, loadedClb(i18n, cb));
};
export const hasLoadedNamespace = (ns, i18n, options = {}) => {
if (!i18n.languages || !i18n.languages.length) {
warnOnce(i18n, 'NO_LANGUAGES', 'i18n.languages were undefined or empty', {
languages: i18n.languages
});
return true;
}
return i18n.hasLoadedNamespace(ns, {
lng: options.lng,
precheck: (i18nInstance, loadNotPending) => {
if (options.bindI18n?.indexOf('languageChanging') > -1 && i18nInstance.services.backendConnector.backend && i18nInstance.isLanguageChangingTo && !loadNotPending(i18nInstance.isLanguageChangingTo, ns)) return false;
}
});
};
export const getDisplayName = Component => Component.displayName || Component.name || (isString(Component) && Component.length > 0 ? Component : 'Unknown');
export const isString = obj => typeof obj === 'string';
export const isObject = obj => typeof obj === 'object' && obj !== null;