max = $this->result[0]['count'];
$this->min = end($this->result)['count'];
}
/** @inheritdoc */
public function render($showNotFound = false)
{
$this->sortResults();
$this->startScope();
$this->startList();
foreach ($this->result as $result) {
$this->renderTag($result);
}
$this->finishList();
$this->finishScope();
}
/**
* Adds additional info to document and renderer in XHTML mode
*
* @see finishScope()
*/
protected function startScope()
{
// wrapping div
if ($this->mode != 'xhtml') return;
$this->renderer->doc .= "";
}
/**
* Closes the table and anything opened in startScope()
*
* @see startScope()
*/
protected function finishScope()
{
// wrapping div
if ($this->mode != 'xhtml') return;
$this->renderer->doc .= '
';
}
/**
* Render a tag of the cloud
*
* @param ['tag' => Value, 'count' => int] $result
*/
protected function renderTag($result)
{
/**
* @var Value $value
*/
$value = $result['tag'];
$count = $result['count'];
if ($value->isEmpty()) {
return;
}
$type = strtolower($value->getColumn()->getType()->getClass());
$weight = $this->getWeight($count, $this->min, $this->max);
if (!empty($this->data['target'])) {
$target = $this->data['target'];
} else {
global $INFO;
$target = $INFO['id'];
}
$tagValue = $value->getDisplayValue();
if (is_array($tagValue)) {
$tagValue = $tagValue[0];
}
$key = $value->getColumn()->getFullQualifiedLabel() . '=';
$filter = SearchConfigParameters::$PARAM_FILTER . '[' . urlencode($key) . ']=' . urlencode($tagValue);
$this->renderer->listitem_open(1);
$this->renderer->listcontent_open();
if ($this->mode == 'xhtml') {
$this->renderer->doc .=
"";
}
$value->renderAsTagCloudLink($this->renderer, $this->mode, $target, $filter, $weight);
if ($this->mode == 'xhtml') {
$this->renderer->doc .= '
';
}
$this->renderer->listcontent_close();
$this->renderer->listitem_close();
}
/**
* This interpolates the weight between 70 and 150 based on $min, $max and $current
*
* @param int $current
* @param int $min
* @param int $max
* @return int
*/
protected function getWeight($current, $min, $max)
{
if ($min == $max) {
return 100;
}
return round(($current - $min) / ($max - $min) * 80 + 70);
}
/**
* Sort the list of results
*/
protected function sortResults()
{
usort($this->result, function ($a, $b) {
$asort = $a['tag']->getColumn()->getType()->getSortString($a['tag']);
$bsort = $b['tag']->getColumn()->getType()->getSortString($b['tag']);
if ($asort < $bsort) {
return -1;
}
if ($asort > $bsort) {
return 1;
}
return 0;
});
}
protected function startList()
{
$this->renderer->listu_open();
}
protected function finishList()
{
$this->renderer->listu_close();
}
}