openethereum/js/i18n/store.js

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import flatten from 'flat';
import { action, observable, transaction } from 'mobx';
import { addLocaleData } from 'react-intl';
import de from 'react-intl/locale-data/de';
import en from 'react-intl/locale-data/en';
import nl from 'react-intl/locale-data/nl';
import zh from 'react-intl/locale-data/zh';
import store from 'store';
import { DEFAULT_LOCALE, DEFAULT_LOCALES, LS_STORE_KEY } from './constants';
import languages from './languages';
import deMessages from './de';
import enMessages from './en';
import nlMessages from './nl';
import zhMessages from './zh';
import zhHantTWMessages from './zh-Hant-TW';
let instance = null;
export const LANGUAGES = flatten({ languages });
export const MESSAGES = {
de: Object.assign(flatten(deMessages), LANGUAGES),
en: Object.assign(flatten(enMessages), LANGUAGES),
nl: Object.assign(flatten(nlMessages), LANGUAGES),
zh: Object.assign(flatten(zhMessages), LANGUAGES),
'zh-Hant-TW': Object.assign(flatten(zhHantTWMessages), LANGUAGES)
};
addLocaleData([...de, ...en, ...nl, ...zh]);
export default class Store {
@observable locale = DEFAULT_LOCALE;
@observable locales = DEFAULT_LOCALES;
@observable messages = MESSAGES[DEFAULT_LOCALE];
constructor () {
const savedLocale = store.get(LS_STORE_KEY);
this.locale = (savedLocale && DEFAULT_LOCALES.includes(savedLocale))
? savedLocale
: DEFAULT_LOCALE;
this.messages = MESSAGES[this.locale];
}
@action setLocale (locale) {
transaction(() => {
this.locale = locale;
this.messages = MESSAGES[locale];
store.set(LS_STORE_KEY, locale);
});
}
static get () {
if (!instance) {
instance = new Store();
}
return instance;
}
}