You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

120 lines
4.8 KiB

import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
import { useState, useEffect, useContext, useRef } from 'react';
import { getI18n, getDefaults, ReportNamespaces, I18nContext } from './context';
import { warnOnce, loadNamespaces, hasLoadedNamespace } from './utils';
var usePrevious = function usePrevious(value, ignore) {
var ref = useRef();
useEffect(function () {
ref.current = ignore ? ref.current : value;
}, [value, ignore]);
return ref.current;
};
export function useTranslation(ns) {
var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var i18nFromProps = props.i18n;
var _ref = useContext(I18nContext) || {},
i18nFromContext = _ref.i18n,
defaultNSFromContext = _ref.defaultNS;
var i18n = i18nFromProps || i18nFromContext || getI18n();
if (i18n && !i18n.reportNamespaces) i18n.reportNamespaces = new ReportNamespaces();
if (!i18n) {
warnOnce('You will need to pass in an i18next instance by using initReactI18next');
var notReadyT = function notReadyT(k) {
return Array.isArray(k) ? k[k.length - 1] : k;
};
var retNotReady = [notReadyT, {}, false];
retNotReady.t = notReadyT;
retNotReady.i18n = {};
retNotReady.ready = false;
return retNotReady;
}
if (i18n.options.react && i18n.options.react.wait !== undefined) warnOnce('It seems you are still using the old wait option, you may migrate to the new useSuspense behaviour.');
var i18nOptions = _objectSpread(_objectSpread(_objectSpread({}, getDefaults()), i18n.options.react), props);
var useSuspense = i18nOptions.useSuspense,
keyPrefix = i18nOptions.keyPrefix;
var namespaces = ns || defaultNSFromContext || i18n.options && i18n.options.defaultNS;
namespaces = typeof namespaces === 'string' ? [namespaces] : namespaces || ['translation'];
if (i18n.reportNamespaces.addUsedNamespaces) i18n.reportNamespaces.addUsedNamespaces(namespaces);
var ready = (i18n.isInitialized || i18n.initializedStoreOnce) && namespaces.every(function (n) {
return hasLoadedNamespace(n, i18n, i18nOptions);
});
function getT() {
return i18n.getFixedT(null, i18nOptions.nsMode === 'fallback' ? namespaces : namespaces[0], keyPrefix);
}
var _useState = useState(getT),
_useState2 = _slicedToArray(_useState, 2),
t = _useState2[0],
setT = _useState2[1];
var joinedNS = namespaces.join();
var previousJoinedNS = usePrevious(joinedNS);
var isMounted = useRef(true);
useEffect(function () {
var bindI18n = i18nOptions.bindI18n,
bindI18nStore = i18nOptions.bindI18nStore;
isMounted.current = true;
if (!ready && !useSuspense) {
loadNamespaces(i18n, namespaces, function () {
if (isMounted.current) setT(getT);
});
}
if (ready && previousJoinedNS && previousJoinedNS !== joinedNS && isMounted.current) {
setT(getT);
}
function boundReset() {
if (isMounted.current) setT(getT);
}
if (bindI18n && i18n) i18n.on(bindI18n, boundReset);
if (bindI18nStore && i18n) i18n.store.on(bindI18nStore, boundReset);
return function () {
isMounted.current = false;
if (bindI18n && i18n) bindI18n.split(' ').forEach(function (e) {
return i18n.off(e, boundReset);
});
if (bindI18nStore && i18n) bindI18nStore.split(' ').forEach(function (e) {
return i18n.store.off(e, boundReset);
});
};
}, [i18n, joinedNS]);
var isInitial = useRef(true);
useEffect(function () {
if (isMounted.current && !isInitial.current) {
setT(getT);
}
isInitial.current = false;
}, [i18n, keyPrefix]);
var ret = [t, i18n, ready];
ret.t = t;
ret.i18n = i18n;
ret.ready = ready;
if (ready) return ret;
if (!ready && !useSuspense) return ret;
throw new Promise(function (resolve) {
loadNamespaces(i18n, namespaces, function () {
resolve();
});
});
}