WB 2.08.x

<?php

/**

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

/**

 * Lib.php

 *

 * @category     Modules

 * @package      Modules_MultiLingual

 * @author       Werner v.d.Decken <wkl@isteam.de>

 * @author       Dietmar Wöllbrink <dietmar.woellbrink@websiteBaker.org>

 * @copyright    Werner v.d.Decken <wkl@isteam.de>

 * @license      http://www.gnu.org/licenses/gpl.html   GPL License

 * @version      1.6.8

 * @revision     $Revision: 2000 $

 * @link         $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/modules/MultiLingual/Lib.php $

 * @lastmodified $Date: 2013-11-14 02:57:51 +0100 (Thu, 14 Nov 2013) $

 * @since        File available since 09.01.2013

 * @description  provides a flexible posibility for changeing to a translated page

 */

class m_MultiLingual_Lib {

/** @var object instance of the WbAdaptor object */

	protected $_oReg = null;

/** @var object instance of the application object */

	private $_oApp     = null;

/** @var object instance of the database object */

	private $_oDb      = null;

	private $_defaultPageId = 0;

/** @var array holds several values from the default.ini */	

	private $_config      = array();

/** @var array set several values for Twig_Environment */	

	private $_aTwigEnv    = array();

/** @var array set several values for Twig_Loader */	

	private $_aTwigLoader = array();

/** @var string set icon extension */	

	private $_sExtension  = array();

/**

 * constructor used to import some application constants and objects

 */	

	public function __construct() 

	{

		// import global vars and objects

		if(!defined('ADMIN_REL')) { define('ADMIN_REL', WB_REL.'/'.ADMIN_DIRECTORY); }

		$this->_oApp        = (isset($GLOBALS['admin']) ? $GLOBALS['admin'] : $GLOBALS['wb']);

		$this->_oDb         = WbDatabase::getInstance();

		$this->_oReg        = WbAdaptor::getInstance();

		$this->_config      = $this->_aConfig = $this->getConfig((dirname(__FILE__)).'/default.ini');

		$this->_aTwigEnv    = $this->_config['twig-environment'];

		$this->_aTwigLoader = $this->_config['twig-loader-file'];

	}

	/**

	 * methode to update a var/value-pair into table

	 * @param integer $iPageId which page shall be updated

	 * @param string $sTable the pages table

	 * @param integer $iEntry 

	 * @return bool

	 */ 

	private function _updatePageCode($iPageId, $sTable, $iNewPageCode = null)

	{

		// if new Pagecode is missing then set the own page ID

		$entry = ( !isset($iNewPageCode) ? $iPageId : $iNewPageCode);

		$sql = 'UPDATE `'.$this->_oDb->TablePrefix.$sTable.'` '

		     . 'SET `page_code`='.$entry.', '

		     .     '`modified_when` = '.time().' '

		     . 'WHERE `page_id` = '.$iPageId;

		return (bool)$this->_oDb->query($sql);

	}

	/**

	 * compose the needed SQL statement

	 * @param integer $sLangKey

	 * @return database object with given SQL statement

	 */			

	private function _getLangInUsedDbResult ( $sLangKey='' ) 

	{

		$sql = 'SELECT DISTINCT `language`,'

		     .                 '`page_id`,`level`,`parent`,`root_parent`,`page_code`,`link`,'

		     .                 '`visibility`,`viewing_groups`,`viewing_users`,`position`,'

		     .                 '`page_title`,`tooltip` '

		     . 'FROM `'.$this->_oDb->TablePrefix.'pages` '

		     . 'WHERE `level`= \'0\' '

		     .   'AND `root_parent`=`page_id` '

		     .   'AND (`visibility`!=\'none\' '

		     .   'AND `visibility`!=\'hidden\') '

		     .   ( ($sLangKey!='') ? ' AND `language` = \''.$sLangKey.'\'' : '')

		     .   'GROUP BY `language` '

		     .   'ORDER BY `position`';

		return $this->_oDb->query($sql);

	}

	/**

	* 

	* search for pages with given page code and create a DB result object

	* @param integer Pagecode to search for

	* @return object result object or null on error

	*/

	private function _getPageCodeDbResult( $iPageCode )

	{

		$sql = 'SELECT `language`,'

		     .        '`page_id`,`level`,`parent`,`root_parent`,`page_code`,`link`,'

		     .        '`visibility`,`viewing_groups`,`viewing_users`,`position`,'

		     .        '`page_title`,`tooltip` '

		     .  'FROM `'.$this->_oDb->TablePrefix.'pages`'

		     .  'WHERE `page_code` = '.$iPageCode.' '

		     .  'ORDER BY `position`';

		return $this->_oDb->query($sql);

	}

	/**

	 * compose the needed SQL statement

	 * @param integer $sLangKey

	 * @return database object with given SQL statementt

	 */

	private function _getLangAddonsDbResult ( $sLangKey='' ) 

	{

		$sql = 'SELECT `directory`,`name`  FROM `'.$this->_oDb->TablePrefix.'addons` '

		     . 'WHERE `type` = \'language\' '

		     . ( ($sLangKey!='') ? ' AND `directory` = \''.$langKey.'\' ' : '')

		     . 'ORDER BY `directory`';

		return $this->_oDb->query($sql);

	}

	/**

	 * 

	 * @param integer $parent

	 * @return database object with given SQL statement

	 */

	private function _getPageListDbResult ( $parent ) 

	{

	    $sql = 'SELECT `language`,`tooltip`,'

		     .        '`page_id`,`page_title`,`menu_title`, `page_code`, `parent` '

		     . 'FROM `'.$this->_oDb->TablePrefix.'pages` '

		     . 'WHERE `parent` = '.$parent. ' '

		     . 'ORDER BY `position`';

		return $this->_oDb->query($sql);

	}

	private function _getPageCodeValues(  $iPageCode=0 )

	{

		$aRetval = array();

		if( ($oRes = $this->_getPageCodeDbResult($iPageCode)) )

		{

			while($page = $oRes->fetchRow(MYSQL_ASSOC))

			{

				if(!$this->_oApp->page_is_visible($page)) {continue;}

				$aRetval[$page['language']] = $page;

			}

		}

		return $aRetval;

	}

	private function _getPageList($parent, $this_page=0 )

	{

		static $entries = array();

		if( ($oLang = $this->_getPageListDbResult($parent)) )

		{

			while($value = $oLang->fetchRow(MYSQL_ASSOC))

			{

				if (( $value['page_id'] != $this_page ) )

				{

					$entries [$value['page_id']]['language'] = $value['language'];

					$entries [$value['page_id']]['menu_title'] = $value['menu_title'];

					$this->_getPageList($value['page_id'], $this_page );

				}

			}

		}

		return $entries;

	}

    protected function getConfig($sFilename)

    {

        if(is_readable($sFilename)){

            return parse_ini_file($sFilename, true);

        }else {

            return null;

        }

    }

	private function _getAllowedLanguagesFromAddons($sLangKey='')

	{

		$aLangAddons = array();

		if( ($oLang = $this->_getLangAddonsDbResult($sLangKey)) )

		{

			while( $aLang = $oLang->fetchRow(MYSQL_ASSOC) )

			{

				$aLangAddons[$aLang['directory']] = $aLang['name'];

			}

		}

		return $aLangAddons;

	}

	/**

	 * 

	 * 

	 * @param 

	 * @return array of first visible language pages with defined fields

	 */

	private function _getLanguagesDetailsInUsed ( $sLangKey='' ) 

	{

		$aRetval = array();

		if( ($oRes = $this->_getLangInUsedDbResult($sLangKey)) ) 

		{

			while($page = $oRes->fetchRow(MYSQL_ASSOC))

			{

				if(!$this->_oApp->page_is_visible($page)) {continue;}

				$aRetval[$page['language']] = $page;

			}

		}

		return $aRetval;

	}

	/**

	* m_MultiLingual_Lib::getLangMenuData()

	* 

	* @param mixed $config

	* @param mixed $oApp

	* @return

	*/

	private function _getLangMenuData ( ) 

	{

		$aTplData = array();

	// get root pages for all used languages

		$aAllowedRootLanguages = $this->_getLanguagesDetailsInUsed( );

		if(sizeof($aAllowedRootLanguages)>1)

		{

		// get all pages witch the same page_code

			$aMatchingPages = $this->_getPageCodeValues( $this->_oApp->page['page_code'] );

		// remove all pages from list with not avaliable languages

			$aPossibleMatchingPages = array_intersect_key($aMatchingPages, $aAllowedRootLanguages);

		// add Allowed root pages to possible matches

			$aAvailablePages = array_merge($aPossibleMatchingPages, $aAllowedRootLanguages);

			foreach ( $aAvailablePages AS $aPage)

			{

				$aTplData[] = array(

				    'sIconUrl'         => $this->_oReg->AppRel . 'modules/'

					                    . basename(dirname(__FILE__)) . '/',

				    'bCurrentLanguage' => (($aPage['language'] == $this->_oReg->Language) ? true : false),

				    'sTargetPageUrl'   => $this->_oReg->AppRel . $this->_oReg->PagesDir

				                        . trim($aAvailablePages[$aPage['language']]['link'],'/')

					                    . $this->_oReg->PageExtension,

				    'sPageTitle'       => $aAvailablePages[$aPage['language']]['page_title'],

				    'sFilename'        => strtolower($aAvailablePages[$aPage['language']]['language']),

				    'sImageType'       => $this->_sExtension,

					'sToolTip'         => $aAvailablePages[$aPage['language']]['tooltip']

				);

			}

		}

		return $aTplData;

	}

	/**

	* m_MultiLingual_Lib::getLangMenu()

	* 

	* @param mixed $config

	* @param mixed $oApp

	* @return

	*/

	private function _getLangMenuTwig ( ) 

	{

		$loader = new Twig_Loader_Filesystem( dirname(__FILE__).$this->_aTwigLoader['templates_dir'] );

		$twig   = new Twig_Environment( $loader );

		$data['aTargetList']   = $this->_getLangMenuData( );

		return $twig->render($this->_aTwigLoader['default_template'], $data);

	}

    private function _detectIE()

    {

        preg_match('/MSIE (.*?);/', $_SERVER['HTTP_USER_AGENT'], $aMatches);

        if (count($aMatches)>1){

          return true;

        }

        return false;

    }

	public function setExtension($sExtension = 'auto') 

	{   

		if($sExtension == 'auto' || $sExtension == 'svg') {

			$this->_sExtension = ($this->_detectIE() == true) ? 'png' : 'svg';

		} else {

			$this->_sExtension = 'png';

		}

		return;

	}

	public function getLangMenu() 

	{

		return $this->_getLangMenuTwig ( );

	}

	public function updateDefaultPagesCode (  ) 

	{

		$retVal  = false;

		$aLangs  = $this->_getLanguagesDetailsInUsed(  );

		$entries = $this->_getPageList( 0 );

// fill page_code with page_id for default_language

		while( list( $page_id, $val ) = each ( $entries ) )

		{

			if( $val['language'] == $this->_oReg->DefaultLanguage ) {

				if( ($retVal = $this->_updatePageCode((int)$page_id, 'pages', (int)$page_id ))==false ){ break;  }

			}

		}

		return $retVal;

	}

}