Ext\HookChain

public function __construct()
public function __invoke()
public static function Hook(&$var, $callable, $append = true, $once = true)
public function add($callable, $append, $once)
public function remove($callable)
public function has($callable)
public function all()
public function offsetSet($offset, $value)
public function offsetExists($offset)
public function offsetUnset($offset)
public function offsetGet($offset)