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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Event; |
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use Psr\Container\ContainerExceptionInterface; |
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use Psr\Container\ContainerInterface; |
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use Yiisoft\EventDispatcher\Provider\ListenerCollection; |
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use Yiisoft\Injector\Injector; |
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final class ListenerCollectionFactory |
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{ |
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private Injector $injector; |
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private ContainerInterface $container; |
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public function __construct(Injector $injector, ContainerInterface $container) |
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{ |
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$this->injector = $injector; |
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$this->container = $container; |
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} |
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/** |
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* @param array $eventListeners Event listener list in format ['eventName1' => [$listener1, $listener2, ...]] |
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* @param bool $precheck If true, all the listeners will be checked strictly if they are valid callables |
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* before attaching to the ListenerCollection |
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* |
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* @return ListenerCollection |
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*/ |
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public function create(array $eventListeners, bool $precheck = false): ListenerCollection |
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{ |
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$listenerCollection = new ListenerCollection(); |
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foreach ($eventListeners as $eventName => $listeners) { |
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if (!is_string($eventName)) { |
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throw new InvalidEventConfigurationFormatException( |
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'Incorrect event listener format. Format with event name must be used.' |
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); |
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} |
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if (!is_array($listeners)) { |
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$type = $this->isCallable($listeners) ? 'callable' : gettype($listeners); |
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throw new InvalidEventConfigurationFormatException( |
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"Event listeners for $eventName must be an array, $type given." |
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); |
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} |
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foreach ($listeners as $callable) { |
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if ($precheck) { |
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/** @psalm-suppress InvalidCatch */ |
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try { |
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if (!$this->isCallable($callable)) { |
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$type = gettype($callable); |
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throw new InvalidListenerConfigurationException( |
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"Listener must be a callable, $type given." |
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); |
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} |
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} catch (ContainerExceptionInterface $exception) { |
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throw new InvalidListenerConfigurationException( |
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"Could not instantiate event listener or listener class has invalid configuration.", |
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0, |
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$exception |
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); |
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} |
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} |
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$listener = function (object $event) use ($callable) { |
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if (is_array($callable) && !is_object($callable[0])) { |
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$callable = [$this->container->get($callable[0]), $callable[1]]; |
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} |
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return $this->injector->invoke($callable, [$event]); |
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}; |
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$listenerCollection = $listenerCollection->add($listener, $eventName); |
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} |
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} |
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return $listenerCollection; |
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} |
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private function isCallable($definition): bool |
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{ |
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if (is_callable($definition)) { |
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return true; |
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} |
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if ( |
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is_array($definition) |
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&& array_keys($definition) === [0, 1] |
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&& is_string($definition[0]) |
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&& $this->container->has($definition[0]) |
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) { |
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$object = $this->container->get($definition[0]); |
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return method_exists($object, $definition[1]); |
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} |
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return false; |
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} |
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} |
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yiisoft /
yii-event
