/**
* Ensure that something will be handled
*
* @param string $event
* @param callable $listener
* @return mixed
*/
function ensure($event, callable $listener = null)
{
if ($listener) {
on($event, $listener, 0);
}
// register default listener
if ($listeners = listeners($event)) {
return call_user_func_array(end($listeners), array_slice(func_get_args(), 2));
}
}
/**
* Returns a list of all registered shortcodes.
*
* @return array
*/
protected static function _list()
{
if (empty(static::$_listeners)) {
$manager = EventDispatcher::instance('Shortcode')->eventManager();
static::$_listeners = listeners($manager);
}
return static::$_listeners;
}
/**
* Pass variable with all filters.
*
* @param $event
* @param null $value
* @return mixed|null
*/
function filter($event, $value = null)
{
$args = func_get_args();
$event = array_shift($args);
foreach ((array) listeners($event) as $listener) {
$args[0] = $value;
$value = call_user_func_array($listener, $args);
}
return $value;
}
