/**
* Registers an extension point.
*
* @param rex_extension_point $extensionPoint Extension point
*
* @return mixed Subject, maybe adjusted by the extensions
*/
public static function registerPoint(rex_extension_point $extensionPoint)
{
if (static::hasFactoryClass()) {
return static::callFactoryClass(__FUNCTION__, func_get_args());
}
$name = $extensionPoint->getName();
foreach ([self::EARLY, self::NORMAL, self::LATE] as $level) {
if (isset(self::$extensions[$name][$level]) && is_array(self::$extensions[$name][$level])) {
foreach (self::$extensions[$name][$level] as $extensionAndParams) {
list($extension, $params) = $extensionAndParams;
$extensionPoint->setExtensionParams($params);
$subject = call_user_func($extension, $extensionPoint);
// Update subject only if the EP is not readonly and the extension has returned something
if (!$extensionPoint->isReadonly() && null !== $subject) {
$extensionPoint->setSubject($subject);
}
}
}
}
return $extensionPoint->getSubject();
}
