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<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based picture gallery                                  |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008      Piwigo Team                  http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | 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                                          |
// |                                                                       |
// | 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, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+
function language_switch()
{
  global $user, $template, $conf, $lang;
  if (!defined('PHPWG_ROOT_PATH')) { die('Hacking attempt!'); }
  $same = $user['language'];
  if ( isset( $_GET['lang']) )
  {
    if ( !empty($_GET['lang'] ) and
      file_exists( PHPWG_ROOT_PATH.'language/'
      . $_GET['lang'].'/common.lang.php') )
    {
      if (is_a_guest() or is_generic())
      {
        setcookie( 'pwg_lang_switch', $_GET['lang'],
          time()+60*60*24*30, cookie_path() );
      }
      else
      {
        $query = 'UPDATE '.USER_INFOS_TABLE.'
        SET language = \''.$_GET['lang'].'\'
        WHERE user_id = '.$user['id'].'
        ;';
        pwg_query($query);
      }
      $user['language'] = $_GET['lang'];
    }
  }
// Users have $user['language']
// Guest or generic members will use their cookied language !
  if ((is_a_guest() or is_generic())
    and isset( $_COOKIE['pwg_lang_switch'] ) )
  {
    $user['language'] = $_COOKIE['pwg_lang_switch'];
  }
// Reload language only if it isn't the same one
  if ( $same !== $user['language'])
  {
    load_language('common.lang', '', $user['language']);
    load_language('local.lang', '', $user['language']);
    if (defined('IN_ADMIN') and IN_ADMIN)
    {
      load_language('admin.lang', '', $user['language']);
    }
  }
}
//if ( isset( $_GET['lang']) ) { redirect( make_index_url() ); }

function Lang_flags()
{
  global $user, $template;
  $available_lang = get_languages();
  foreach ( $available_lang as $code => $displayname )
  {
    $qlc_url = add_url_params( make_index_url(), array( 'lang' => $code ) );
    $qlc_alt = ucwords( $displayname );
    $qlc_title =  $qlc_alt;
    $qlc_img =  'plugins/language_switch/icons/'
       . $code . '.gif';

    if ( $code !== $user['language'] and file_exists(PHPWG_ROOT_PATH.$qlc_img) )
    {
      $template->concat( 'PLUGIN_INDEX_ACTIONS',
        '<li><a href="' . $qlc_url . '" ><img src="' . get_root_url().$qlc_img . '" alt="'
        . $qlc_alt . '" title="'
        . $qlc_title . '" style="border: 1px solid #000000; '
        . ' margin: 0px 2px;" /></a></li>');
    }
  }
}
?>