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| -rw-r--r-- | lib/tagcloudsection.php | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/lib/tagcloudsection.php b/lib/tagcloudsection.php new file mode 100644 index 000000000..121dfc499 --- /dev/null +++ b/lib/tagcloudsection.php @@ -0,0 +1,113 @@ +<?php +/** + * Laconica, 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 Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @copyright 2009 Control Yourself, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +if (!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 Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +class TagCloudSection extends Section +{ + function showContent() + { + $tags = $this->getTags(); + + if (!$tags) { + return false; + } + + $cnt = 0; + + $tw = array(); + $sum = 0; + + while ($tags->fetch() && ++$cnt <= TAGS_PER_SECTION) { + $tw[$tags->tag] = $tags->weight; + $sum += $tags->weight; + } + + ksort($tw); + + $this->out->elementStart('ul', 'tags xoxo tag-cloud'); + foreach ($tw as $tag => $weight) { + $this->showTag($tag, $weight, $weight/$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) + { + return common_local_url('tag', array('tag' => $tag)); + } +} |