<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2007 Bharat Mediratta
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */

/**
 * @package Tags
 * @author Eric H Daniel <ehdaniel@gmail.com>
 * @version $Revision: 1087 $
 */
class TagsCallbacks {

    function callback($params, &$smarty, $callback, $userId=null) {
	global $gallery;
	GalleryCoreApi::requireOnce('modules/tags/classes/TagsHelper.class');

	switch ($callback) {
	    case 'TagsLink':
		$tags = array();
		list ($ret, $tags) = TagsHelper::getTagsByItemId($params['itemId']);
		if ($ret) {
		    return $ret;
		}

		$block =& $smarty->_tpl_vars['block'];
		$block['tags']['TagsLink']['Tags'] = $tags;
		$block['tags']['TagsLink']['TagsNumber'] = count($tags);

		return null;

	    case 'GetTagCloud':
		list ($ret, $tags) = TagsHelper::getTagListWithTagCount();
		if ($ret) {
		    return array($ret, null);
		}

		$tagCloud = TagsHelper::createTagCloudFromList($tags);

		$block =& $smarty->_tpl_vars['block'];
		if (isset($params['totalTagCount']) and $params['totalTagCount']) {
		    $totalTagCount = 0;
		    foreach ($tagCloud as $tag){
			$totalTagCount += $tag['rawTagCount'];
		    }
		    $block['tags']['totalTagCount'] = $tagCloud;
		}
		$block['tags']['taglist'] = $tagCloud;

		return null;
	}

	return GalleryCoreApi::error(ERROR_BAD_PARAMETER);
    }
}
?>