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/*
This file is part of TALER
(C) 2016 GNUnet e.V.
TALER 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, or (at your option) any later version.
TALER 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
TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
*/
"use strict";
document.addEventListener(
"DOMContentLoaded",
function () {
document.body.lang = chrome.i18n.getUILanguage();
});
declare var i18n: any;
const JedModule = window["Jed"];
var jed;
var i18nDebug = false;
class PluralNumber {
n: number;
constructor(n) {
this.n = n;
}
valueOf () {
return this.n;
}
toString () {
return this.n.toString();
}
}
/** Initialize Jed */
function init () {
if ("object" === typeof jed) {
return;
}
if ("function" !== typeof JedModule) {
return;
}
if (!(i18n.lang in i18n.strings)) {
i18n.lang = "en-US";
}
jed = new JedModule(i18n.strings[i18n.lang]);
if (i18nDebug) {
let link = m("a[href=https://demo.taler.net]", i18n`free KUDOS`);
let i = 1, amount = 5, currency = "EUR", date = new Date(), text = "demo.taler.net";
console.log(i18n`DEBUG: Your balance on ${date} is ${amount} KUDO. Get more at ${text}`);
console.log(i18n.parts`DEBUG: Your balance on ${date} is ${amount} KUDO. Get more at ${link}`);
console.log(i18n.pluralize(i18n`DEBUG: Your balance is ${amount} KUDO.`,
`DEBUG: Your balance is ${amount} KUDOs.`));
console.log(i18n.pluralize(i18n`DEBUG: #${i}: Your balance is ${i18n.number(amount)} KUDO.`,
`DEBUG: #${i}: Your balance is ${i18n.number(amount)} KUDOs.`));
}
}
/** Convert template strings to a msgid */
function toI18nString(strings) {
let str = "";
for (let i = 0; i < strings.length; i++) {
str += strings[i];
if (i < strings.length - 1) {
str += "%"+ (i+1) +"$s";
}
}
return str;
}
/** Use the first number in values to determine plural form */
function getPluralValue (values) {
let n = null;
for (let i = 0; i < values.length; i++) {
if ("number" === typeof values[i] || values[i] instanceof PluralNumber) {
if (null === n || values[i] instanceof PluralNumber) {
n = values[i].valueOf();
}
}
}
return (null === n) ? 1 : n;
}
var i18n = <any>function i18n(strings, ...values) {
init();
if ("object" !== typeof jed) {
// Fallback implementation in case i18n lib is not there
return String.raw(strings, ...values);
}
let str = toI18nString (strings);
let n = getPluralValue (values);
let tr = jed.translate(str).ifPlural(n, str).fetch(...values);
if (i18nDebug) {
console.log('i18n:', 'n: ', n, 'strings:', strings, 'values:', values);
console.log('i18n:', 'str:', str);
console.log('i18n:', 'tr:', tr);
}
return tr;
};
i18n.lang = chrome.i18n.getUILanguage();
i18n.strings = {};
/**
* Interpolate i18nized values with arbitrary objects.
* @return Array of strings/objects.
*/
i18n.parts = function(strings, ...values) {
init();
if ("object" !== typeof jed) {
// Fallback implementation in case i18n lib is not there
let parts = [];
for (let i = 0; i < strings.length; i++) {
parts.push(strings[i]);
if (i < values.length) {
parts.push(values[i]);
}
}
return parts;
}
let str = toI18nString (strings);
let n = getPluralValue (values);
let tr = jed.ngettext(str, str, n).split(/%(\d+)\$s/);
let parts = [];
for (let i = 0; i < tr.length; i++) {
if (0 == i % 2) {
parts.push(tr[i]);
} else {
parts.push(values[parseInt(tr[i]) - 1]);
}
}
if (i18nDebug) {
console.log('i18n.parts:', 'n: ', n, 'strings:', strings, 'values:', values);
console.log('i18n.parts:', 'str:', str);
console.log('i18n.parts:', 'parts:', parts);
}
return parts;
};
/**
* Pluralize based on first numeric parameter in the template.
* @todo The plural argument is used for extraction by pogen.js
*/
i18n.pluralize = function (singular, plural) {
return singular;
};
/**
* Return a number that is used to determine the plural form for a template.
*/
i18n.number = function (n : number) {
return new PluralNumber (n);
}
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