<?php /** * StatusNet, the distributed open-source microblogging tool * * Base class for sections showing tag clouds * * PHP version 5 * * LICENCE: This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * @category Widget * @package StatusNet * @author Evan Prodromou <evan@status.net> * @copyright 2009 StatusNet, Inc. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://status.net/ */ if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); } define('TAGS_PER_SECTION', 20); /** * Base class for sections * * These are the widgets that show interesting data about a person * group, or site. * * @category Widget * @package StatusNet * @author Evan Prodromou <evan@status.net> * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://status.net/ */ class TagCloudSection extends Section { function showContent() { $tags = $this->getTags(); if (!$tags) { $this->out->element('p', null, _('None')); return false; } $cnt = 0; $tw = array(); $sum = 0; while ($tags->fetch() && ++$cnt <= TAGS_PER_SECTION) { $tw[$tags->tag] = $tags->weight; $sum += $tags->weight; } if ($cnt == 0) { $this->out->element('p', null, _('(None)')); return false; } ksort($tw); $this->out->elementStart('ul', 'tags xoxo tag-cloud'); foreach ($tw as $tag => $weight) { $this->showTag($tag, $weight, ($sum == 0) ? 0 : $weight/$sum); } $this->out->elementEnd('ul'); return ($cnt > TAGS_PER_SECTION); } function getTags() { return null; } function showTag($tag, $weight, $relative) { if ($relative > 0.1) { $rel = 'tag-cloud-7'; } else if ($relative > 0.05) { $rel = 'tag-cloud-6'; } else if ($relative > 0.02) { $rel = 'tag-cloud-5'; } else if ($relative > 0.01) { $rel = 'tag-cloud-4'; } else if ($relative > 0.005) { $rel = 'tag-cloud-3'; } else if ($relative > 0.002) { $rel = 'tag-cloud-2'; } else { $rel = 'tag-cloud-1'; } $this->out->elementStart('li', $rel); $this->out->element('a', array('href' => $this->tagUrl($tag)), $tag); $this->out->elementEnd('li'); } function tagUrl($tag) { if ('showstream' === $this->out->trimmed('action')) { return common_local_url('showstream', array('nickname' => $this->out->profile->nickname, 'tag' => $tag)); } else { return common_local_url('tag', array('tag' => $tag)); } } function divId() { return 'tagcloud'; } }