158 lines
3.4 KiB
TypeScript
158 lines
3.4 KiB
TypeScript
/*
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This file is part of TALER
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(C) 2016 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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"use strict";
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document.addEventListener(
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"DOMContentLoaded",
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function () {
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document.body.lang = chrome.i18n.getUILanguage();
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});
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declare var i18n: any;
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const JedModule = window["Jed"];
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var jed;
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class PluralNumber {
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n: number;
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constructor(n) {
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this.n = n;
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}
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valueOf () {
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return this.n;
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}
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toString () {
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return this.n.toString();
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}
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}
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/** Initialize Jed */
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function init () {
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if ("object" === typeof jed) {
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return;
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}
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if ("function" !== typeof JedModule) {
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return;
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}
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if (!(i18n.lang in i18n.strings)) {
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i18n.lang = "en-US";
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return;
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}
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jed = new JedModule(i18n.strings[i18n.lang]);
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}
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/** Convert template strings to a msgid */
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function toI18nString(strings) {
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let str = "";
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for (let i = 0; i < strings.length; i++) {
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str += strings[i];
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if (i < strings.length - 1) {
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str += "%"+ (i+1) +"$s";
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}
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}
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return str;
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}
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/** Use the first number in values to determine plural form */
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function getPluralValue (values) {
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let n = null;
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for (let i = 0; i < values.length; i++) {
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if ("number" === typeof values[i] || values[i] instanceof PluralNumber) {
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if (null === n || values[i] instanceof PluralNumber) {
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n = values[i].valueOf();
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}
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}
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}
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return (null === n) ? 1 : n;
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}
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var i18n = <any>function i18n(strings, ...values) {
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init();
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if ("object" !== typeof jed) {
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// Fallback implementation in case i18n lib is not there
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return String.raw(strings, ...values);
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}
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let str = toI18nString (strings);
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let n = getPluralValue (values);
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let tr = jed.translate(str).ifPlural(n, str).fetch(...values);
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return tr;
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};
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i18n.lang = chrome.i18n.getUILanguage();
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i18n.strings = {};
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/**
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* Interpolate i18nized values with arbitrary objects.
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* @return Array of strings/objects.
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*/
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i18n.parts = function(strings, ...values) {
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init();
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if ("object" !== typeof jed) {
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// Fallback implementation in case i18n lib is not there
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let parts = [];
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for (let i = 0; i < strings.length; i++) {
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parts.push(strings[i]);
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if (i < values.length) {
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parts.push(values[i]);
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}
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}
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return parts;
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}
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let str = toI18nString (strings);
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let n = getPluralValue (values);
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let tr = jed.ngettext(str, str, n).split(/%(\d+)\$s/);
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let parts = [];
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for (let i = 0; i < tr.length; i++) {
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if (0 == i % 2) {
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parts.push(tr[i]);
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} else {
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parts.push(values[parseInt(tr[i]) - 1]);
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}
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}
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return parts;
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};
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/**
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* Pluralize based on first numeric parameter in the template.
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* @todo The plural argument is used for extraction by pogen.js
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*/
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i18n.pluralize = function (singular, plural) {
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return singular;
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};
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/**
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* Return a number that is used to determine the plural form for a template.
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*/
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i18n.number = function (n : number) {
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return new PluralNumber (n);
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}
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