private function tagToName($t)
{
$exists = false;
$id = $t;
resolve_pageID($this->tagplugin->namespace, $id, $exists);
$name = p_get_first_heading($id, false);
if (empty($name)) {
$name = $t;
} else {
$name = $name;
}
return $name;
}
function render($mode, &$renderer, $data)
{
global $conf;
list($type, $num, $namespaces) = $data;
if ($mode == 'xhtml') {
if ($type == 'tag') {
// we need the tag helper plugin
if (plugin_isdisabled('tag') || !($tag = plugin_load('helper', 'tag'))) {
msg('The Tag Plugin must be installed to display tag clouds.', -1);
return false;
}
$cloud = $this->_getTagCloud($num, $min, $max, $namespaces, $tag);
} elseif ($type == 'search') {
$helper = plugin_load('helper', 'searchstats');
if ($helper) {
$cloud = $helper->getSearchWordArray($num);
// calculate min/max values
$min = PHP_INT_MAX;
$max = 0;
foreach ($cloud as $size) {
$min = min($size, $min);
$max = max($size, $max);
}
} else {
msg('You have to install the searchstats plugin to use this feature.', -1);
return false;
}
} else {
$cloud = $this->_getWordCloud($num, $min, $max);
}
if (!is_array($cloud) || empty($cloud)) {
return false;
}
$delta = ($max - $min) / 16;
// prevent caching to ensure the included pages are always fresh
$renderer->info['cache'] = false;
// and render the cloud
$renderer->doc .= '<div class="cloud">' . DOKU_LF;
foreach ($cloud as $word => $size) {
if ($size < $min + round($delta)) {
$class = 'cloud1';
} elseif ($size < $min + round(2 * $delta)) {
$class = 'cloud2';
} elseif ($size < $min + round(4 * $delta)) {
$class = 'cloud3';
} elseif ($size < $min + round(8 * $delta)) {
$class = 'cloud4';
} else {
$class = 'cloud5';
}
$name = $word;
if ($type == 'tag') {
$id = $word;
$exists = false;
resolve_pageID($tag->namespace, $id, $exists);
if ($exists) {
$link = wl($id);
if ($conf['useheading']) {
$name = p_get_first_heading($id, false);
} else {
$name = $word;
}
} else {
$link = wl($id, array('do' => 'showtag', 'tag' => $word));
}
$title = $word;
$class .= $exists ? '_tag1' : '_tag2';
} else {
if ($conf['userewrite'] == 2) {
$link = wl($word, array('do' => 'search', 'id' => $word));
$title = $size;
} else {
$link = wl($word, 'do=search');
$title = $size;
}
}
$renderer->doc .= DOKU_TAB . '<a href="' . $link . '" class="' . $class . '"' . ' title="' . $title . '">' . hsc($name) . '</a>' . DOKU_LF;
}
$renderer->doc .= '</div>' . DOKU_LF;
return true;
}
return false;
}
/**
* Returns <a></a> links with font style attribut representing number of ocurrences
* (inspired by DokuWiki Cloud plugin by Gina Häußge, Michael Klier, Esther Brunner)
*/
function _getTagXml($options)
{
global $conf;
if ($options['show'] == 'tags') {
// we need the tag helper plugin
if (plugin_isdisabled('tag') || !($tag = plugin_load('helper', 'tag'))) {
msg('The Tag Plugin must be installed to display tag clouds.', -1);
return '';
}
$cloud = $this->_getTagCloud($options['max'], $min, $max, $tag);
} elseif ($options['show'] == 'namespaces') {
$cloud = $this->_getNamespaceCloud($options['max'], $min, $max);
} else {
$cloud = $this->_getWordCloud($options['max'], $min, $max);
}
if (!is_array($cloud) || empty($cloud)) {
return '';
}
$delta = ($max - $min) / 16;
if ($delta == 0) {
$delta = 1;
}
foreach ($cloud as $word => $size) {
if ($size < $min + round($delta)) {
$class = 'cloud1';
} elseif ($size < $min + round(2 * $delta)) {
$class = 'cloud2';
} elseif ($size < $min + round(4 * $delta)) {
$class = 'cloud3';
} elseif ($size < $min + round(8 * $delta)) {
$class = 'cloud4';
} else {
$class = 'cloud5';
}
$name = $word;
if ($options['show'] == 'tags') {
$id = $word;
resolve_pageID($tag->namespace, $id, $exists);
if ($exists) {
$link = wl($id, '', true);
if ($conf['useheading']) {
$name = p_get_first_heading($id, false);
}
} else {
$link = wl($id, array('do' => 'showtag', 'tag' => noNS($id)), true);
}
$title = $id;
$class .= $exists ? '_tag1' : '_tag2';
} elseif ($options['show'] == 'namespaces') {
$id = '';
resolve_pageID($word, $id, $exists);
$link = wl($id, '', true);
$title = $id;
$size = 108;
$class = 'cloud5';
} else {
if ($conf['userewrite'] == 2) {
$link = wl($word, array('do' => 'search', 'id' => $word), true);
$title = $size;
} else {
$link = wl($word, 'do=search', true);
$title = $size;
}
}
$fsize = 8 + round(($size - $min) / $delta);
$xmlCloude .= '<a href="' . $link . '" class="' . $class . '"' . ' title="' . $title . '" style="font-size: ' . $fsize . 'pt;">' . hsc($name) . '</a>' . DOKU_LF;
}
return $xmlCloude;
}
