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/**
* jQuery Internationalization library - Message Store
*
* Copyright (C) 2012 Santhosh Thottingal
*
* jquery.i18n is dual licensed GPLv2 or later and MIT. You don't have to do anything special to
* choose one license or the other and you don't have to notify anyone which license you are using.
* You are free to use UniversalLanguageSelector in commercial projects as long as the copyright
* header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
*
* @licence GNU General Public Licence 2.0 or later
* @licence MIT License
*/
( function ( $, window, undefined ) {
'use strict';
var MessageStore = function () {
this.messages = {};
this.sources = {};
};
/**
* See https://github.com/wikimedia/jquery.i18n/wiki/Specification#wiki-Message_File_Loading
*/
MessageStore.prototype = {
/**
* General message loading API This can take a URL string for
* the json formatted messages.
* <code>load('path/to/all_localizations.json');</code>
*
* This can also load a localization file for a locale <code>
* load( 'path/to/de-messages.json', 'de' );
* </code>
* A data object containing message key- message translation mappings
* can also be passed Eg:
* <code>
* load( { 'hello' : 'Hello' }, optionalLocale );
* </code> If the data argument is
* null/undefined/false,
* all cached messages for the i18n instance will get reset.
*
* @param {String|Object} source
* @param {String} locale Language tag
* @return {jQuery.Promise}
*/
load: function ( source, locale ) {
var key = null,
deferred = null,
deferreds = [],
messageStore = this;
if ( typeof source === 'string' ) {
// This is a URL to the messages file.
$.i18n.log( 'Loading messages from: ' + source );
deferred = jsonMessageLoader( source )
.done( function ( localization ) {
messageStore.set( locale, localization );
} );
return deferred.promise();
}
if ( locale ) {
// source is an key-value pair of messages for given locale
messageStore.set( locale, source );
return $.Deferred().resolve();
} else {
// source is a key-value pair of locales and their source
for ( key in source ) {
if ( Object.prototype.hasOwnProperty.call( source, key ) ) {
locale = key;
// No {locale} given, assume data is a group of languages,
// call this function again for each language.
deferreds.push( messageStore.load( source[key], locale ) );
}
}
return $.when.apply( $, deferreds );
}
},
/**
* Set messages to the given locale.
* If locale exists, add messages to the locale.
* @param locale
* @param messages
*/
set: function ( locale, messages ) {
if ( !this.messages[locale] ) {
this.messages[locale] = messages;
} else {
this.messages[locale] = $.extend( this.messages[locale], messages );
}
},
/**
*
* @param locale
* @param messageKey
* @returns {Boolean}
*/
get: function ( locale, messageKey ) {
return this.messages[locale] && this.messages[locale][messageKey];
}
};
function jsonMessageLoader( url ) {
var deferred = $.Deferred();
$.getJSON( url )
.done( deferred.resolve )
.fail( function ( jqxhr, settings, exception ) {
$.i18n.log( 'Error in loading messages from ' + url + ' Exception: ' + exception );
// Ignore 404 exception, because we are handling fallabacks explicitly
deferred.resolve();
} );
return deferred.promise();
}
$.extend( $.i18n.messageStore, new MessageStore() );
}( jQuery, window ) );
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