egroupware/api/js/jsapi/egw_lang.js

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/**
* EGroupware clientside API object
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link http://www.egroupware.org
* @author Andreas Stöckel (as AT stylite.de)
* @author Ralf Becker <RalfBecker@outdoor-training.de>
* @version $Id$
*/
/*egw:uses
egw_core;
egw_files;
egw_ready;
*/
/**
* @augments Class
*/
egw.extend('lang', egw.MODULE_GLOBAL, function()
{
"use strict";
/**
* Translations
*
* @access: private, use egw.lang() or egw.set_lang_arr()
*/
var lang_arr = {};
// Return the actual extension
return {
/**
* Set translation for a given application
*
* @param {string} _app
* @param {object} _messages message => translation pairs
* @param {boolean} _need_clone _messages need to be cloned, as it is from different window context
* and therefore will be inaccessible in IE, after that window is closed
* @memberOf egw
*/
set_lang_arr: function(_app, _messages, _need_clone)
{
if(!jQuery.isArray(_messages))
{
// no deep clone jQuery.extend(true,...) neccessary, as _messages contains only string values
lang_arr[_app] = _need_clone ? jQuery.extend({}, _messages) : _messages;
}
},
/**
* Translate a given phrase replacing optional placeholders
*
* @param {string} _msg message to translate
* @param {...string} _arg1 ... _argN
* @return {string}
*/
lang: function(_msg, _arg1)
{
if(_msg === null)
{
return '';
}
if(typeof _msg !== "string" && _msg)
{
egw().debug("warn", "Cannot translate an object", _msg);
return _msg;
}
var translation = _msg;
_msg = _msg.toLowerCase();
// search apps in given order for a replacement
var apps = this.lang_order || ['custom', this.getAppName(), 'etemplate', 'common'];
for(var i = 0; i < apps.length; ++i)
{
if (typeof lang_arr[apps[i]] != "undefined" &&
typeof lang_arr[apps[i]][_msg] != 'undefined')
{
translation = lang_arr[apps[i]][_msg];
break;
}
}
if (arguments.length == 1) return translation;
if (arguments.length == 2) return translation.replace('%1', arguments[1]);
// to cope with arguments containing '%2' (eg. an urlencoded path like a referer),
// we first replace all placeholders '%N' with '|%N|' and then we replace all '|%N|' with arguments[N]
translation = translation.replace(/%([0-9]+)/g, '|%$1|');
for(var i = 1; i < arguments.length; ++i)
{
translation = translation.replace('|%'+i+'|', arguments[i]);
}
return translation;
},
/**
* Load default langfiles for an application: common, _appname, custom
*
* @param {DOMElement} _window
* @param {string} _appname name of application to load translations for
* @param {function} _callback
* @param {object} _context
*/
langRequireApp: function(_window, _appname, _callback, _context)
{
var lang = egw.preference('lang');
var langs = [{app: 'common', lang: lang}];
if (_appname && _appname != 'eGroupWare')
{
langs.push({app: _appname, lang: lang});
}
langs.push({app: 'custom', lang: 'en'});
egw.langRequire(_window, langs, _callback, _context);
},
/**
* Includes the language files for the given applications -- if those
* do not already exist, include them.
*
* @param {DOMElement} _window is the window which needs the language -- this is
* needed as the "ready" event has to be postponed in that window until
* all lang files are included.
* @param {array} _apps is an array containing the applications for which the
* data is needed as objects of the following form:
* {
* app: <APPLICATION NAME>,
* lang: <LANGUAGE CODE>
* }
* @param {function} _callback called after loading, if not given ready event will be postponed instead
* @param {object} _context for callback
*/
langRequire: function(_window, _apps, _callback, _context) {
// Get the ready and the files module for the given window
var ready = this.module("ready", _window);
var files = this.module("files", this.window);
// Build the file names which should be included
var jss = [];
var apps = [];
for (var i = 0; i < _apps.length; i++)
{
if (typeof lang_arr[_apps[i].app] === "undefined")
{
jss.push(this.webserverUrl +
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'/api/lang.php?app=' + _apps[i].app +
'&lang=' + _apps[i].lang +
'&etag=' + (_apps[i].etag || this.config('max_lang_time')));
}
apps.push(_apps[i].app);
}
if (this !== egw && apps.length > 0)
{
this.lang_order = apps.reverse();
}
// Only continue if we need to include a language
if (jss.length > 0)
{
if (typeof _callback == 'function')
{
files.includeJS(jss, _callback, _context || null);
}
else
{
// Require a "ready postpone token"
var token = ready.readyWaitFor();
// Call "readyDone" once all js files have been included.
files.includeJS(jss, function () {
ready.readyDone(token);
}, this);
}
}
else if (typeof _callback == 'function')
{
_callback.call(_context || null);
}
}
};
});