nextcloud/core/js/l10n.js

349 lines
9.0 KiB
JavaScript

/**
* Copyright (c) 2014 Vincent Petry <pvince81@owncloud.com>
*
* This file is licensed under the Affero General Public License version 3
* or later.
*
* See the COPYING-README file.
*
*/
/**
* L10N namespace with localization functions.
*
* @namespace
*/
OC.L10N = {
/**
* String bundles with app name as key.
* @type {Object.<String,String>}
*/
_bundles: {},
/**
* Plural functions, key is app name and value is function.
* @type {Object.<String,Function>}
*/
_pluralFunctions: {},
/**
* Load an app's translation bundle if not loaded already.
*
* @param {String} appName name of the app
* @param {Function} callback callback to be called when
* the translations are loaded
* @return {Promise} promise
*/
load: function(appName, callback) {
// already available ?
if (this._bundles[appName] || OC.getLocale() === 'en') {
var deferred = $.Deferred();
var promise = deferred.promise();
promise.then(callback);
deferred.resolve();
return promise;
}
var self = this;
var url = OC.filePath(appName, 'l10n', OC.getLocale() + '.json');
// load JSON translation bundle per AJAX
return $.get(url)
.then(
function(result) {
if (result.translations) {
self.register(appName, result.translations, result.pluralForm);
}
})
.then(callback);
},
/**
* Register an app's translation bundle.
*
* @param {String} appName name of the app
* @param {Object<String,String>} bundle
* @param {Function|String} [pluralForm] optional plural function or plural string
*/
register: function(appName, bundle, pluralForm) {
var self = this;
if (_.isUndefined(this._bundles[appName])) {
this._bundles[appName] = bundle || {};
// generate plural function based on form
this._pluralFunctions[appName] = this._getPlural;
} else {
// Theme overwriting the default language
_.extend(self._bundles[appName], bundle);
}
},
/**
* Translate a string
* @param {string} app the id of the app for which to translate the string
* @param {string} text the string to translate
* @param [vars] map of placeholder key to value
* @param {number} [count] number to replace %n with
* @param {array} [options] options array
* @param {bool} [options.escape=true] enable/disable auto escape of placeholders (by default enabled)
* @return {string}
*/
translate: function(app, text, vars, count, options) {
var defaultOptions = {
escape: true
},
allOptions = options || {};
_.defaults(allOptions, defaultOptions);
// TODO: cache this function to avoid inline recreation
// of the same function over and over again in case
// translate() is used in a loop
var _build = function (text, vars, count) {
return text.replace(/%n/g, count).replace(/{([^{}]*)}/g,
function (a, b) {
var r = vars[b];
if(typeof r === 'string' || typeof r === 'number') {
if(allOptions.escape) {
return DOMPurify.sanitize(escapeHTML(r));
} else {
return DOMPurify.sanitize(r);
}
} else {
return DOMPurify.sanitize(a);
}
}
);
};
var translation = text;
var bundle = this._bundles[app] || {};
var value = bundle[text];
if( typeof(value) !== 'undefined' ){
translation = value;
}
if(typeof vars === 'object' || count !== undefined ) {
return DOMPurify.sanitize(_build(translation, vars, count));
} else {
return DOMPurify.sanitize(translation);
}
},
/**
* Translate a plural string
* @param {string} app the id of the app for which to translate the string
* @param {string} textSingular the string to translate for exactly one object
* @param {string} textPlural the string to translate for n objects
* @param {number} count number to determine whether to use singular or plural
* @param [vars] map of placeholder key to value
* @param {array} [options] options array
* @param {bool} [options.escape=true] enable/disable auto escape of placeholders (by default enabled)
* @return {string} Translated string
*/
translatePlural: function(app, textSingular, textPlural, count, vars, options) {
var identifier = '_' + textSingular + '_::_' + textPlural + '_';
var bundle = this._bundles[app] || {};
var value = bundle[identifier];
if( typeof(value) !== 'undefined' ){
var translation = value;
if ($.isArray(translation)) {
var plural = this._pluralFunctions[app](count);
return this.translate(app, translation[plural], vars, count, options);
}
}
if(count === 1) {
return this.translate(app, textSingular, vars, count, options);
}
else{
return this.translate(app, textPlural, vars, count, options);
}
},
/**
* The plural function taken from symfony
*
* @param {number} number
* @returns {number}
* @private
*/
_getPlural: function(number) {
var locale = OC.getLocale();
if ('pt_BR' === locale) {
// temporary set a locale for brazilian
locale = 'xbr';
}
if (typeof locale === 'undefined') {
return (1 == number) ? 0 : 1;
}
if (locale.length > 3) {
locale = locale.substring(0, locale.lastIndexOf('_'));
}
/*
* The plural rules are derived from code of the Zend Framework (2010-09-25),
* which is subject to the new BSD license (http://framework.zend.com/license/new-bsd).
* Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
*/
switch (locale) {
case 'az':
case 'bo':
case 'dz':
case 'id':
case 'ja':
case 'jv':
case 'ka':
case 'km':
case 'kn':
case 'ko':
case 'ms':
case 'th':
case 'tr':
case 'vi':
case 'zh':
return 0;
case 'af':
case 'bn':
case 'bg':
case 'ca':
case 'da':
case 'de':
case 'el':
case 'en':
case 'eo':
case 'es':
case 'et':
case 'eu':
case 'fa':
case 'fi':
case 'fo':
case 'fur':
case 'fy':
case 'gl':
case 'gu':
case 'ha':
case 'he':
case 'hu':
case 'is':
case 'it':
case 'ku':
case 'lb':
case 'ml':
case 'mn':
case 'mr':
case 'nah':
case 'nb':
case 'ne':
case 'nl':
case 'nn':
case 'no':
case 'oc':
case 'om':
case 'or':
case 'pa':
case 'pap':
case 'ps':
case 'pt':
case 'so':
case 'sq':
case 'sv':
case 'sw':
case 'ta':
case 'te':
case 'tk':
case 'ur':
case 'zu':
return (1 == number) ? 0 : 1;
case 'am':
case 'bh':
case 'fil':
case 'fr':
case 'gun':
case 'hi':
case 'hy':
case 'ln':
case 'mg':
case 'nso':
case 'xbr':
case 'ti':
case 'wa':
return ((0 == number) || (1 == number)) ? 0 : 1;
case 'be':
case 'bs':
case 'hr':
case 'ru':
case 'sh':
case 'sr':
case 'uk':
return ((1 == number % 10) && (11 != number % 100)) ? 0 : (((number % 10 >= 2) && (number % 10 <= 4) && ((number % 100 < 10) || (number % 100 >= 20))) ? 1 : 2);
case 'cs':
case 'sk':
return (1 == number) ? 0 : (((number >= 2) && (number <= 4)) ? 1 : 2);
case 'ga':
return (1 == number) ? 0 : ((2 == number) ? 1 : 2);
case 'lt':
return ((1 == number % 10) && (11 != number % 100)) ? 0 : (((number % 10 >= 2) && ((number % 100 < 10) || (number % 100 >= 20))) ? 1 : 2);
case 'sl':
return (1 == number % 100) ? 0 : ((2 == number % 100) ? 1 : (((3 == number % 100) || (4 == number % 100)) ? 2 : 3));
case 'mk':
return (1 == number % 10) ? 0 : 1;
case 'mt':
return (1 == number) ? 0 : (((0 == number) || ((number % 100 > 1) && (number % 100 < 11))) ? 1 : (((number % 100 > 10) && (number % 100 < 20)) ? 2 : 3));
case 'lv':
return (0 == number) ? 0 : (((1 == number % 10) && (11 != number % 100)) ? 1 : 2);
case 'pl':
return (1 == number) ? 0 : (((number % 10 >= 2) && (number % 10 <= 4) && ((number % 100 < 12) || (number % 100 > 14))) ? 1 : 2);
case 'cy':
return (1 == number) ? 0 : ((2 == number) ? 1 : (((8 == number) || (11 == number)) ? 2 : 3));
case 'ro':
return (1 == number) ? 0 : (((0 == number) || ((number % 100 > 0) && (number % 100 < 20))) ? 1 : 2);
case 'ar':
return (0 == number) ? 0 : ((1 == number) ? 1 : ((2 == number) ? 2 : (((number % 100 >= 3) && (number % 100 <= 10)) ? 3 : (((number % 100 >= 11) && (number % 100 <= 99)) ? 4 : 5))));
default:
return 0;
}
}
};
/**
* translate a string
* @param {string} app the id of the app for which to translate the string
* @param {string} text the string to translate
* @param [vars] map of placeholder key to value
* @param {number} [count] number to replace %n with
* @return {string}
*/
window.t = _.bind(OC.L10N.translate, OC.L10N);
/**
* translate a string
* @param {string} app the id of the app for which to translate the string
* @param {string} text_singular the string to translate for exactly one object
* @param {string} text_plural the string to translate for n objects
* @param {number} count number to determine whether to use singular or plural
* @param [vars] map of placeholder key to value
* @return {string} Translated string
*/
window.n = _.bind(OC.L10N.translatePlural, OC.L10N);
Handlebars.registerHelper('t', function(app, text) {
return OC.L10N.translate(app, text);
});