/**
* @param StateMachineInterface $sm
* @param string $event
* @param callable $callback
* @param array $specs
*
* @return $this
*/
protected function add(StateMachineInterface $sm, $event, $callback, array $specs)
{
$specs = $this->processSpecs($specs);
$listener = function (TransitionEvent $e) use($sm, $callback, $specs) {
if ($sm !== $e->getStateMachine()) {
return;
}
if (!(in_array(CallbackHandler::ALL, $specs['to']) || in_array($e->getTransition()->getState(), $specs['to']))) {
return;
}
if (!(in_array(CallbackHandler::ALL, $specs['from']) || in_array($e->getInitialState()->getName(), $specs['from']))) {
return;
}
if (in_array($e->getTransition()->getState(), $specs['exclude_to'])) {
return;
}
if (in_array($e->getInitialState()->getName(), $specs['exclude_from'])) {
return;
}
call_user_func($callback, $sm->getObject(), $e);
};
$events = array($event);
if (count($specs['on']) > 0 && !in_array(self::ALL, $specs['on'])) {
$events = array_map(function ($v) use($event) {
return $event . '.' . $v;
}, $specs['on']);
}
foreach ($events as $event) {
$this->dispatcher->addListener($event, $listener);
}
return $this;
}
