joomla_test/libraries/joomla/language/helper.php

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2020-01-02 22:20:31 +07:00
<?php
/**
* @package Joomla.Platform
* @subpackage Language
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* Language helper class
*
* @package Joomla.Platform
* @subpackage Language
* @since 11.1
*/
class JLanguageHelper
{
/**
* Builds a list of the system languages which can be used in a select option
*
* @param string $actualLanguage Client key for the area
* @param string $basePath Base path to use
* @param boolean $caching True if caching is used
* @param array $installed An array of arrays (text, value, selected)
*
* @return array List of system languages
*
* @since 11.1
*/
public static function createLanguageList($actualLanguage, $basePath = JPATH_BASE, $caching = false, $installed = false)
{
$list = array();
// Cache activation
$langs = JLanguage::getKnownLanguages($basePath);
if ($installed)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select('element')
->from('#__extensions')
->where('type=' . $db->quote('language'))
->where('state=0')
->where('enabled=1')
->where('client_id=' . ($basePath == JPATH_ADMINISTRATOR ? 1 : 0));
$db->setQuery($query);
$installed_languages = $db->loadObjectList('element');
}
foreach ($langs as $lang => $metadata)
{
if (!$installed || array_key_exists($lang, $installed_languages))
{
$option = array();
$option['text'] = $metadata['name'];
$option['value'] = $lang;
if ($lang == $actualLanguage)
{
$option['selected'] = 'selected="selected"';
}
$list[] = $option;
}
}
return $list;
}
/**
* Tries to detect the language.
*
* @return string locale or null if not found
*
* @since 11.1
*/
public static function detectLanguage()
{
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']))
{
$browserLangs = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
$systemLangs = self::getLanguages();
foreach ($browserLangs as $browserLang)
{
// Slice out the part before ; on first step, the part before - on second, place into array
$browserLang = substr($browserLang, 0, strcspn($browserLang, ';'));
$primary_browserLang = substr($browserLang, 0, 2);
foreach ($systemLangs as $systemLang)
{
// Take off 3 letters iso code languages as they can't match browsers' languages and default them to en
$Jinstall_lang = $systemLang->lang_code;
if (strlen($Jinstall_lang) < 6)
{
if (strtolower($browserLang) == strtolower(substr($systemLang->lang_code, 0, strlen($browserLang))))
{
return $systemLang->lang_code;
}
elseif ($primary_browserLang == substr($systemLang->lang_code, 0, 2))
{
$primaryDetectedLang = $systemLang->lang_code;
}
}
}
if (isset($primaryDetectedLang))
{
return $primaryDetectedLang;
}
}
}
return null;
}
/**
* Get available languages
*
* @param string $key Array key
*
* @return array An array of published languages
*
* @since 11.1
*/
public static function getLanguages($key = 'default')
{
static $languages;
if (empty($languages))
{
// Installation uses available languages
if (JFactory::getApplication()->getClientId() == 2)
{
$languages[$key] = array();
$knownLangs = JLanguage::getKnownLanguages(JPATH_BASE);
foreach ($knownLangs as $metadata)
{
// Take off 3 letters iso code languages as they can't match browsers' languages and default them to en
$obj = new stdClass;
$obj->lang_code = $metadata['tag'];
$languages[$key][] = $obj;
}
}
else
{
$cache = JFactory::getCache('com_languages', '');
if (!$languages = $cache->get('languages'))
{
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select('*')
->from('#__languages')
->where('published=1')
->order('ordering ASC');
$db->setQuery($query);
$languages['default'] = $db->loadObjectList();
$languages['sef'] = array();
$languages['lang_code'] = array();
if (isset($languages['default'][0]))
{
foreach ($languages['default'] as $lang)
{
$languages['sef'][$lang->sef] = $lang;
$languages['lang_code'][$lang->lang_code] = $lang;
}
}
$cache->store($languages, 'languages');
}
}
}
return $languages[$key];
}
}