source: extensions/photoWidget/public.php

<?php
// +-----------------------------------------------------------------------+
// | photoWidget  - a plugin for Piwigo                                    |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2010-2013 Nicolas Roudaire        http://www.nikrou.net  |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License version 2 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., 51 Franklin Street, Fifth Floor, Boston,            |
// | MA 02110-1301 USA                                                     |
// +-----------------------------------------------------------------------+

include_once PW_PLUGIN_ROOT . "/include/photoWidgetContent.class.php";

$public_content = new photoWidgetContent($plugin_config);

add_event_handler('loc_begin_index_category_thumbnails', 
                  array($public_content, 'loc_begin_index_category_thumbnails')
                  );

add_event_handler('loc_begin_index_thumbnails', 
                  array($public_content, 'loc_begin_index_thumbnails')
                  );
add_event_handler('loc_begin_index', 
                  array($public_content, 'loc_begin_index')
                  );