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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\EventDispatcher\EventDispatcherInterface; |
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use Psr\EventDispatcher\ListenerProviderInterface; |
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use Yiisoft\Di\Container; |
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use Yiisoft\Di\Support\ServiceProvider; |
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use Yiisoft\EventDispatcher\Dispatcher\Dispatcher; |
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use Yiisoft\EventDispatcher\Provider\ListenerCollection; |
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use Yiisoft\EventDispatcher\Provider\Provider; |
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use Yiisoft\Injector\Injector; |
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final class EventDispatcherProvider extends ServiceProvider |
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{ |
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private array $eventListeners; |
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/** |
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* @param array $eventListeners Event listener list in format ['eventName1' => [$listener1, $listener2, ...]] |
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*/ |
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public function __construct(array $eventListeners) |
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{ |
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$this->eventListeners = $eventListeners; |
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} |
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/** |
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* @suppress PhanAccessMethodProtected |
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*/ |
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public function register(Container $container): void |
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{ |
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$listenerCollection = new ListenerCollection(); |
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$injector = new Injector($container); |
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foreach ($this->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, $container) ? 'callable' : gettype($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 $callable) { |
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try { |
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if (!$this->isCallable($callable, $container)) { |
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$type = gettype($listeners); |
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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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$listener = static function (object $event) use ($injector, $callable, $container) { |
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if (is_array($callable) && !is_object($callable[0])) { |
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$callable = [$container->get($callable[0]), $callable[1]]; |
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} |
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return $injector->invoke($callable, [$event]); |
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}; |
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$listenerCollection = $listenerCollection->add($listener, $eventName); |
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} |
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} |
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$provider = new Provider($listenerCollection); |
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$container->set(ListenerProviderInterface::class, $provider); |
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$container->set(EventDispatcherInterface::class, Dispatcher::class); |
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} |
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private function isCallable($definition, Container $container): bool |
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{ |
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if (is_callable($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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&& $container->has($definition[0]) |
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) { |
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$object = $container->get($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
