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<?php
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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* TranslationTable.php
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*
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* @category Core
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* @package Core_Translation
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* @copyright Werner v.d.Decken <wkl@isteam.de>
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* @author Werner v.d.Decken <wkl@isteam.de>
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* @license http://www.gnu.org/licenses/gpl.html GPL License
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* @version 0.0.1
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* @revision $Revision: 1873 $
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* @link $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/TranslationTable.php $
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* @lastmodified $Date: 2013-02-27 01:15:20 +0100 (Wed, 27 Feb 2013) $
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* @since File available since 12.01.2013
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*/
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class TranslationTable {
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protected $aTranslations = array();
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protected $aLanguages = array();
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protected $sSystemLang = 'en';
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protected $sDefaultLang = 'en';
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protected $sUserLang = 'en';
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protected $sAddon = '';
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protected $oReg = null;
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protected $sTempPath = '';
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protected $iDirMode = 0777;
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protected $bUseCache = true;
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/**
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* Constructor
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* @param string relative pathname of the Addon (i.e. '' || 'modules/myAddon/')
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* @param string System language code ( 2*3ALPHA[[_2ALPHA]_2*4ALNUM] )
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* @param string Default language code ( 2*3ALPHA[[_2ALPHA]_2*4ALNUM] )
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* @param string User language code ( 2*3ALPHA[[_2ALPHA]_2*4ALNUM] )
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* @param boolean true if caching is enabled
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*/
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public function __construct($sAddon,
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$sSystemLanguage,
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$sDefaultLanguage,
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$sUserLanguage,
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$bUseCache = true)
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{
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$this->bUseCache = $bUseCache;
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$this->sSystemLang = $sSystemLanguage;
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$this->sDefaultLang = $sDefaultLanguage;
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$this->sUserLang = $sUserLanguage;
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$this->sAddon = $sAddon;
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if(class_exists('WbAdaptor')) {
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$this->sTempPath = WbAdaptor::getInstance()->TempPath;
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$this->iDirMode = WbAdaptor::getInstance()->OctalDirMode;
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}else {
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$this->sTempPath = dirname(dirname(__FILE__)).'/temp/';
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}
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$this->aLanguages['system'] = array();
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$this->aLanguages['default'] = array();
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$this->aLanguages['user'] = array();
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}
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/**
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* Load language definitions
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* @return TranslationTable a valid translation table object
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* @throws TranslationException
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*/
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public function load($sAdaptor)
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{
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$sCachePath = $this->getCachePath();
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$sCacheFile = $sCachePath.md5($this->sAddon.$this->sSystemLang.
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$this->sDefaultLang.$this->sUserLang).'.php';
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if($this->bUseCache && is_readable($sCacheFile)) {
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$this->aTranslations = $this->loadCacheFile($sCacheFile);
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}else {
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$bLanguageFound = false;
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$oAdaptor= new $sAdaptor($this->sAddon);
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if(!$oAdaptor instanceof TranslateAdaptorInterface) {
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$sMsg = 'Class ['.$sAdaptor.'] does not implement the '
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. 'interface [TranslateAdaptorInterface]';
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throw new TranslationException($sMsg);
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}
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// load system language first
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if(($aResult = $this->loadLanguageSegments($this->sSystemLang, $oAdaptor)) !== false) {
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// load system language
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$this->aLanguages['system'] = $aResult;
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$bLanguageFound = true;
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}
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if($this->sDefaultLang != $this->sSystemLang) {
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// load default language if it's not equal system language
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if(($aResult = $this->loadLanguageSegments($this->sDefaultLang, $oAdaptor)) !== false) {
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$this->aLanguages['default'] = $aResult;
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$bLanguageFound = true;
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}
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}else {
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// copy system language
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$this->aLanguages['default'] = $this->aLanguages['system'];
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}
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if($this->sUserLang != $this->sDefaultLang
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&& $this->sUserLang != $this->sSystemLang) {
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// load user language if it's not equal default language or system language
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if(($aResult = $this->loadLanguageSegments($this->sUserLang, $oAdaptor)) !== false) {
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$this->aLanguages['user'] = $aResult;
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$bLanguageFound = true;
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}
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}elseif($this->sUserLang == $this->sDefaultLang) {
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// copy default language
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$this->aLanguages['user'] = $this->aLanguages['default'];
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}elseif($this->sUserLang == $this->sSystemLang) {
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// copy system language
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$this->aLanguages['user'] = $this->aLanguages['system'];
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}
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if($bLanguageFound) {
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// copy user into default if default is missing
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if(sizeof($this->aLanguages['user']) && !sizeof($this->aLanguages['default'])) {
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$this->aLanguages['default'] = $this->aLanguages['user'];
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}
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// copy default into system if system is missing
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if(sizeof($this->aLanguages['default']) && !sizeof($this->aLanguages['system'])) {
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$this->aLanguages['system'] = $this->aLanguages['default'];
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}
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}
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// if absolutely no requested language found, simply get the first available language
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if(!$bLanguageFound) {
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$sFirstLanguage = $oAdaptor->findFirstLanguage();
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// load first found language if its not already loaded
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if(($aResult = $this->loadLanguageSegments($sFirstLanguage, $oAdaptor)) !== false) {
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$this->aLanguages['system'] = $aResult;
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$bLanguageFound = true;
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}
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}
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if($bLanguageFound) {
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$this->aTranslations = array_merge($this->aTranslations,
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$this->aLanguages['system'],
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$this->aLanguages['default'],
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$this->aLanguages['user']);
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if($this->bUseCache) {
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$this->writeCacheFile($sCacheFile);
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}
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}
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}
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return $this;
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}
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/**
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* Is key available
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* @param string Language key
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* @return bool
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*/
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public function __isset($sKey)
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{
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return isset($this->aTranslations[$sKey]);
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}
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/**
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* Get translation text
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* @param string Language key
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* @return string Translation text
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*/
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public function __get($sKey)
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{
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if(isset($this->aTranslations[$sKey])) {
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return $this->aTranslations[$sKey];
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}else {
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return '';
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}
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}
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/**
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* returns the whoole translation array
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* @return array
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* @deprecated for backward compatibility only. Will be removed shortly
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*/
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public function getArray()
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{
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$aRetval = (is_array($this->aTranslations) ? $this->aTranslations : array());
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return $aRetval;
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}
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/**
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* Load Language
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* @param string Language Code
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* @param object Adaptor object
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* @return bool|array
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*/
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protected function loadLanguageSegments($sLangCode, $oAdaptor)
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{
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$aTranslations = array();
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// sanitize the language code
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$aLangCode = explode('_', preg_replace('/[^a-z0-9]/i', '_', strtolower($sLangCode)));
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$sConcatedLang = '';
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foreach($aLangCode as $sLang)
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{ // iterate all segments of the language code
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$sConcatedLang .= ($sConcatedLang == '' ? '' : '_').$sLang;
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if( ($aResult = $oAdaptor->loadLanguage($sConcatedLang)) !== false ) {
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$aTranslations = array_merge($aTranslations, $aResult);
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}
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}
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return (sizeof($aTranslations) > 0 ? $aTranslations : false);
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}
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/**
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* getCachePath
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* @return string a valid path for caching or null on error
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*/
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protected function getCachePath()
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{
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$sCachePath = $this->sTempPath.__CLASS__.'/cache/';
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if(!file_exists($sCachePath) && is_writeable($this->sTempPath)) {
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$iOldUmask = umask(0);
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mkdir($sCachePath, $this->iDirMode, true);
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umask($iOldUmask);
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}
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if(is_writable($sCachePath)) {
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return $sCachePath;
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}else {
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return null;
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}
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}
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/**
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* load cached translation table
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* @param string path/name of the cachefile
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* @return array list of translations
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*/
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protected function loadCacheFile($sCacheFile)
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{
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$aTranslation = array();
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include($sCacheFile);
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return $aTranslation;
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}
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/**
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* Write cache from translation
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* @param string path/name of the cachefile
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*/
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protected function writeCacheFile($sCacheFile)
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{
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$sOutput = '<?php'."\n".'/* autogenerated cachefile */'."\n";
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while (list($key, $value) = each($this->aTranslations)) {
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$sOutput .= '$aTranslation[\''.$key.'\'] = \''.addslashes($value).'\';'."\n";
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}
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file_put_contents($sCacheFile, $sOutput, LOCK_EX);
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}
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} // end of class TranslationTable
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