103 lines
3.0 KiB
JavaScript
103 lines
3.0 KiB
JavaScript
// @flow
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import moment from 'moment';
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import i18next from './i18next';
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// allows for moment durations to be formatted
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import 'moment-duration-format';
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// MomentJS uses static language bundle loading, so in order to support dynamic
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// language selection in the app we need to load all bundles that we support in
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// the app.
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require('moment/locale/bg');
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require('moment/locale/de');
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require('moment/locale/eo');
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require('moment/locale/es');
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require('moment/locale/fr');
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require('moment/locale/hy-am');
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require('moment/locale/it');
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require('moment/locale/nb');
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// OC is not available. Please submit OC translation to the MomentJS project.
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require('moment/locale/pl');
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require('moment/locale/pt');
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require('moment/locale/pt-br');
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require('moment/locale/ru');
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require('moment/locale/sk');
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require('moment/locale/sl');
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require('moment/locale/sv');
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require('moment/locale/tr');
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require('moment/locale/zh-cn');
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/**
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* Returns a localized date formatter initialized with a specific {@code Date}
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* or timestamp ({@code number}).
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*
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* @private
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* @param {Date | number} dateOrTimeStamp - The date or unix timestamp (ms)
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* to format.
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* @returns {Object}
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*/
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export function getLocalizedDateFormatter(dateOrTimeStamp: Date | number) {
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return moment(dateOrTimeStamp).locale(_getSupportedLocale());
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}
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/**
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* Returns a localized duration formatter initialized with a
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* specific duration ({@code number}).
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*
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* @private
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* @param {number} duration - The duration (ms)
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* to format.
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* @returns {Object}
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*/
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export function getLocalizedDurationFormatter(duration: number) {
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// FIXME The flow-type definition of moment is v2.3 while our package.json
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// states v2.19 so maybe locale on moment's duration was introduced in
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// between?
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//
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// If the conference is under an hour long we want to display it without
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// showing the hour and we want to include the hour if the conference is
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// more than an hour long
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if (moment.duration(duration).format('h') !== '0') {
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return moment.duration(duration).format('h:mm:ss');
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}
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return moment.duration(duration).format('mm:ss', { trim: false });
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}
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/**
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* A lenient locale matcher to match language and dialect if possible.
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*
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* @private
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* @returns {string}
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*/
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function _getSupportedLocale() {
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const i18nLocale = i18next.language;
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let supportedLocale;
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if (i18nLocale) {
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const localeRegexp = new RegExp('^([a-z]{2,2})(-)*([a-z]{2,2})*$');
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const localeResult = localeRegexp.exec(i18nLocale.toLowerCase());
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if (localeResult) {
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const currentLocaleRegexp
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= new RegExp(
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`^${localeResult[1]}(-)*${`(${localeResult[3]})*` || ''}`);
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supportedLocale
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// FIXME The flow-type definition of moment is v2.3 while our
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// package.json states v2.19 so maybe locales on moment was
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// introduced in between?
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= moment.locales().find(lang => currentLocaleRegexp.exec(lang));
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}
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}
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return supportedLocale || 'en';
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}
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