2 * jQuery Internationalization library - Message Store
4 * Copyright (C) 2012 Santhosh Thottingal
6 * jquery.i18n is dual licensed GPLv2 or later and MIT. You don't have to do anything special to
7 * choose one license or the other and you don't have to notify anyone which license you are using.
8 * You are free to use UniversalLanguageSelector in commercial projects as long as the copyright
9 * header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
11 * @licence GNU General Public Licence 2.0 or later
12 * @licence MIT License
15 ( function ( $, window, undefined ) {
18 var MessageStore = function () {
24 * See https://github.com/wikimedia/jquery.i18n/wiki/Specification#wiki-Message_File_Loading
26 MessageStore.prototype = {
29 * General message loading API This can take a URL string for
30 * the json formatted messages.
31 * <code>load('path/to/all_localizations.json');</code>
33 * This can also load a localization file for a locale <code>
34 * load( 'path/to/de-messages.json', 'de' );
36 * A data object containing message key- message translation mappings
37 * can also be passed Eg:
39 * load( { 'hello' : 'Hello' }, optionalLocale );
40 * </code> If the data argument is
41 * null/undefined/false,
42 * all cached messages for the i18n instance will get reset.
44 * @param {String|Object} source
45 * @param {String} locale Language tag
46 * @return {jQuery.Promise}
48 load: function ( source, locale ) {
54 if ( typeof source === 'string' ) {
55 // This is a URL to the messages file.
56 $.i18n.log( 'Loading messages from: ' + source );
57 deferred = jsonMessageLoader( source )
58 .done( function ( localization ) {
59 messageStore.set( locale, localization );
62 return deferred.promise();
66 // source is an key-value pair of messages for given locale
67 messageStore.set( locale, source );
69 return $.Deferred().resolve();
71 // source is a key-value pair of locales and their source
72 for ( key in source ) {
73 if ( Object.prototype.hasOwnProperty.call( source, key ) ) {
75 // No {locale} given, assume data is a group of languages,
76 // call this function again for each language.
77 deferreds.push( messageStore.load( source[key], locale ) );
80 return $.when.apply( $, deferreds );
86 * Set messages to the given locale.
87 * If locale exists, add messages to the locale.
91 set: function ( locale, messages ) {
92 if ( !this.messages[locale] ) {
93 this.messages[locale] = messages;
95 this.messages[locale] = $.extend( this.messages[locale], messages );
105 get: function ( locale, messageKey ) {
106 return this.messages[locale] && this.messages[locale][messageKey];
110 function jsonMessageLoader( url ) {
111 var deferred = $.Deferred();
114 .done( deferred.resolve )
115 .fail( function ( jqxhr, settings, exception ) {
116 $.i18n.log( 'Error in loading messages from ' + url + ' Exception: ' + exception );
117 // Ignore 404 exception, because we are handling fallabacks explicitly
121 return deferred.promise();
124 $.extend( $.i18n.messageStore, new MessageStore() );
125 }( jQuery, window ) );