<div id="mi-languageSwitch">
  <ul>
{foreach from=$languages item=language}
    <li class="{if $language.is_current}currentLanguage{/if}"><a href="{$language.url}">{$language.name} <img src="{$ROOT_URL}language/{$language.code}/{$language.code}.jpg"></a></li>
{/foreach}
  </ul>
</div>

<?php
/*
Plugin Name: Personal Plugin
Version: 1.0
Description: Personal Plugin
Plugin URI: http://piwigo.org
Author:
Author URI:
*/

add_event_handler('loading_lang', 'myiceland_language_switch');
// add_event_handler('init', 'myiceland_language_switch');
function myiceland_language_switch()
{
  global $user;
  
  $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())
      {
        pwg_set_session_var( 'lang_switch', $_GET['lang'] );
      }
      else
      {
        $query = '
UPDATE '.USER_INFOS_TABLE.'
  SET language = \''.$_GET['lang'].'\'
  WHERE user_id = '.$user['id'].'
;';
        pwg_query($query);
      }
      $user['language'] = $_GET['lang'];
    }
  }
  elseif (is_a_guest() or is_generic())
  {
    $user['language'] = pwg_get_session_var('lang_switch', $user['language']);
  }

  // Reload language only if it isn't the same one
  if ($same !== $user['language'])
  {
    load_language('common.lang', '', array('language'=>$user['language']));
    load_language(
      'lang',
      PHPWG_ROOT_PATH.'local/',
      array(
        'language' => $user['language'],
        'no_fallback' => true,
        'local' => true,
        )
      );
    
    if (defined('IN_ADMIN') and IN_ADMIN) { // Never currently
      load_language('admin.lang', '', array('language'=>$user['language']) );
    }
  }
}

add_event_handler('loc_begin_page_header', 'myiceland_languages_in_header');
function myiceland_languages_in_header()
{ 
  global $template, $user;

  $language_code_to_name = get_languages();

  $base_url = duplicate_index_url();
  if (script_basename() == 'picture')
  {
    $base_url = duplicate_picture_url();
  }
  $base_url = add_url_params(
    $base_url,
    array('lang' => '')
    );
  
  $languages = array();
  $language_codes = array('sv_SE', 'en_UK', 'de_DE');
  foreach ($language_codes as $language_code)
  {
    $language = array(
      'name' => preg_replace('/\s\[.*\]$/', '', $language_code_to_name[$language_code]),
      'code' => $language_code,
      'url' => $base_url.$language_code,
      'is_current' => ($language_code == $user['language']),
      );
    array_push($languages, $language);
  }   
  
  $template->assign('languages', $languages);
}
?>

$language_codes = array('sv_SE', 'en_UK', 'de_DE');

#mi-languageSwitch {
  position: absolute;
  left: 875px;
  top: 5px;
  width: 60px;
  text-align: right;
  line-height: 20px;
}

#mi-languageSwitch ul {
  margin:0;
  padding:0
}

#mi-languageSwitch li.currentLanguage a {
  color:#279AB2;
}

#mi-languageSwitch li img {
  margin-bottom: -3px;
}