296 lines
7.5 KiB
PHP
296 lines
7.5 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Jakob Sack
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* @copyright 2012 Frank Karlitschek frank@owncloud.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* This class is for i18n and l10n
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*/
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class OC_L10N{
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/**
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* cached instances
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*/
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protected static $instances=array();
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/**
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* cache
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*/
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protected static $cache = array();
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/**
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* The best language
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*/
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protected static $language = '';
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/**
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* Translations
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*/
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private $translations = array();
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/**
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* Localization
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*/
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private $localizations = array(
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'date' => 'd.m.Y',
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'datetime' => 'd.m.Y H:i:s',
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'time' => 'H:i:s');
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/**
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* get an L10N instance
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* @return OC_L10N
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*/
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public static function get($app,$lang=null){
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if(is_null($lang)){
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if(!isset(self::$instances[$app])){
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self::$instances[$app]=new OC_L10N($app);
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}
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return self::$instances[$app];
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}else{
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return new OC_L10N($app,$lang);
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}
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}
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/**
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* @brief The constructor
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* @param $app the app requesting l10n
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* @param $lang default: null Language
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* @returns OC_L10N-Object
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*
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* If language is not set, the constructor tries to find the right
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* language.
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*/
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public function __construct($app, $lang = null){
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// Find the right language
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if(is_null($lang)){
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$lang = self::findLanguage($app);
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}
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// Use cache if possible
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if(array_key_exists($app.'::'.$lang, self::$cache)){
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$this->translations = self::$cache[$app.'::'.$lang]['t'];
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$this->localizations = self::$cache[$app.'::'.$lang]['l'];
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}
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else{
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$i18ndir = self::findI18nDir($app);
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// Localization is in /l10n, Texts are in $i18ndir
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// (Just no need to define date/time format etc. twice)
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if(file_exists($i18ndir.$lang.'.php')){
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// Include the file, save the data from $CONFIG
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include($i18ndir.$lang.'.php');
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if(isset($TRANSLATIONS) && is_array($TRANSLATIONS)){
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$this->translations = $TRANSLATIONS;
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}
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}
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if(file_exists(OC::$SERVERROOT.'/core/l10n/l10n-'.$lang.'.php')){
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// Include the file, save the data from $CONFIG
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include(OC::$SERVERROOT.'/core/l10n/l10n-'.$lang.'.php');
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if(isset($LOCALIZATIONS) && is_array($LOCALIZATIONS)){
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$this->localizations = array_merge($this->localizations, $LOCALIZATIONS);
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}
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}
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self::$cache[$app.'::'.$lang]['t'] = $this->translations;
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self::$cache[$app.'::'.$lang]['l'] = $this->localizations;
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}
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}
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/**
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* @brief Translating
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* @param $text The text we need a translation for
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* @param $parameters default:array() Parameters for sprintf
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* @returns Translation or the same text
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*
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* Returns the translation. If no translation is found, $text will be
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* returned.
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*/
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public function t($text, $parameters = array()){
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if(array_key_exists($text, $this->translations)){
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return vsprintf($this->translations[$text], $parameters);
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}
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return vsprintf($text, $parameters);
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}
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/**
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* @brief Translating
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* @param $textArray The text array we need a translation for
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* @returns Translation or the same text
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*
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* Returns the translation. If no translation is found, $textArray will be
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* returned.
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*/
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public function tA($textArray){
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$result = array();
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foreach($textArray as $key => $text){
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$result[$key] = $this->t($text);
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}
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return $result;
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}
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/**
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* @brief getTranslations
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* @returns Fetch all translations
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*
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* Returns an associative array with all translations
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*/
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public function getTranslations(){
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return $this->translations;
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}
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/**
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* @brief Localization
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* @param $type Type of localization
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* @param $params parameters for this localization
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* @returns String or false
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*
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* Returns the localized data.
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*
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* Implemented types:
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* - date
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* - Creates a date
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* - l10n-field: date
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* - params: timestamp (int/string)
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* - datetime
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* - Creates date and time
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* - l10n-field: datetime
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* - params: timestamp (int/string)
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* - time
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* - Creates a time
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* - l10n-field: time
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* - params: timestamp (int/string)
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*/
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public function l($type, $data){
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switch($type){
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// If you add something don't forget to add it to $localizations
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// at the top of the page
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case 'date':
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case 'datetime':
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case 'time':
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if($data instanceof DateTime) return $data->format($this->localizations[$type]);
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elseif(is_string($data)) $data = strtotime($data);
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return date($this->localizations[$type], $data);
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break;
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default:
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return false;
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}
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}
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/**
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* @brief Choose a language
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* @param $texts Associative Array with possible strings
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* @returns String
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*
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* $text is an array 'de' => 'hallo welt', 'en' => 'hello world', ...
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*
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* This function is useful to avoid loading thousands of files if only one
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* simple string is needed, for example in appinfo.php
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*/
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public static function selectLanguage($text){
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$lang = self::findLanguage(array_keys($text));
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return $text[$lang];
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}
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/**
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* @brief find the best language
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* @param $app Array or string, details below
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* @returns language
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*
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* If $app is an array, ownCloud assumes that these are the available
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* languages. Otherwise ownCloud tries to find the files in the l10n
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* folder.
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*
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* If nothing works it returns 'en'
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*/
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public static function findLanguage($app = null){
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if(!is_array($app) && self::$language != ''){
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return self::$language;
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}
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$available = array();
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if(is_array($app)){
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$available = $app;
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}
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else{
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$available=self::findAvailableLanguages($app);
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}
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if(OC_User::getUser() && OC_Preferences::getValue(OC_User::getUser(), 'core', 'lang')){
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$lang = OC_Preferences::getValue(OC_User::getUser(), 'core', 'lang');
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self::$language = $lang;
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if(array_search($lang, $available) !== false){
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return $lang;
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}
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}
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if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
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$accepted_languages = preg_split('/,\s*/', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
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foreach($accepted_languages as $i){
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$temp = explode(';', $i);
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if(array_search($temp[0], $available) !== false){
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return $temp[0];
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}
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}
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}
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// Last try: English
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return 'en';
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}
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/**
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* @brief find the l10n directory
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* @param $app App that needs to be translated
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* @returns directory
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*/
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protected static function findI18nDir($app){
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// find the i18n dir
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$i18ndir = OC::$SERVERROOT.'/core/l10n/';
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if($app != ''){
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// Check if the app is in the app folder
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if(file_exists(OC::$APPSROOT.'/apps/'.$app.'/l10n/')){
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$i18ndir = OC::$APPSROOT.'/apps/'.$app.'/l10n/';
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}
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else{
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$i18ndir = OC::$SERVERROOT.'/'.$app.'/l10n/';
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}
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}
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return $i18ndir;
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}
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/**
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* @brief find all available languages for an app
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* @param $app App that needs to be translated
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* @returns array an array of available languages
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*/
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public static function findAvailableLanguages($app=null){
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$available=array('en');//english is always available
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$dir = self::findI18nDir($app);
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if(is_dir($dir)){
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$files=scandir($dir);
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foreach($files as $file){
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if(substr($file, -4, 4) == '.php'){
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$i = substr($file, 0, -4);
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$available[] = $i;
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}
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}
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}
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return $available;
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}
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}
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