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<?php |
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/** |
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* @package php-tmdb\laravel |
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* @author Mark Redeman <[email protected]> |
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* @copyright (c) 2014, Mark Redeman |
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*/ |
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namespace Tmdb\Laravel\Adapters; |
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use Symfony\Component\EventDispatcher\Event; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface as SymfonyDispatcher; |
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/** |
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* This adapter provides a Laravel integration for applications |
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* using the Symfony EventDispatcherInterface |
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* It passes any request on to a Symfony Dispatcher and only |
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* uses the Laravel Dispatcher when dispatching events |
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*/ |
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abstract class EventDispatcherAdapter implements SymfonyDispatcher |
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{ |
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/** |
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* The Laravel Events Dispatcher |
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* @var \Illuminate\Contracts\Events\Dispatcher or \Illuminate\Events\Dispatcher |
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*/ |
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protected $laravelDispatcher; |
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/** |
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* The Symfony Event Dispatcher |
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* @var \Symfony\Component\EventDispatcher\EventDispatcherInterface |
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*/ |
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protected $symfonyDispatcher; |
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/** |
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* Dispatches an event to all registered listeners. |
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* |
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* @param string $eventName The name of the event to dispatch. The name of |
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* the event is the name of the method that is |
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* invoked on listeners. |
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* @param Event $event The event to pass to the event handlers/listeners. |
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* If not supplied, an empty Event instance is created. |
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* |
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* @return Event |
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* |
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* @api |
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*/ |
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public function dispatch($eventName, Event $event = null) |
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{ |
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$this->laravelDispatcher->fire($eventName, $event); |
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return $this->symfonyDispatcher->dispatch($eventName, $event); |
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} |
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/** |
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* Adds an event listener that listens on the specified events. |
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* |
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* @param string $eventName The event to listen on |
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* @param callable $listener The listener |
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* @param int $priority The higher this value, the earlier an event |
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* listener will be triggered in the chain (defaults to 0) |
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* |
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* @api |
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*/ |
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public function addListener($eventName, $listener, $priority = 0) |
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{ |
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$this->symfonyDispatcher->addListener($eventName, $listener, $priority); |
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} |
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/** |
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* Adds an event subscriber. |
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* |
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* The subscriber is asked for all the events he is |
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* interested in and added as a listener for these events. |
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* |
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* @param EventSubscriberInterface $subscriber The subscriber. |
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* |
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* @api |
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*/ |
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public function addSubscriber(EventSubscriberInterface $subscriber) |
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{ |
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$this->symfonyDispatcher->addSubscriber($subscriber); |
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} |
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/** |
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* Removes an event listener from the specified events. |
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* |
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* @param string $eventName The event to remove a listener from |
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* @param callable $listenerToBeRemoved The listener to remove |
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*/ |
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public function removeListener($eventName, $listenerToBeRemoved) |
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{ |
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$this->symfonyDispatcher->removeListener($eventName, $listenerToBeRemoved); |
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} |
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/** |
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* Removes an event subscriber. |
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* |
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* @param EventSubscriberInterface $subscriber The subscriber |
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*/ |
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public function removeSubscriber(EventSubscriberInterface $subscriber) |
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{ |
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$this->symfonyDispatcher->removeSubscriber($subscriber); |
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} |
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/** |
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* Gets the listeners of a specific event or all listeners. |
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* |
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* @param string $eventName The name of the event |
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* |
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* @return array The event listeners for the specified event, or all event listeners by event name |
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*/ |
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public function getListeners($eventName = null) |
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{ |
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return $this->symfonyDispatcher->getListeners($eventName); |
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} |
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/** |
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* Checks whether an event has any registered listeners. |
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* |
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* @param string $eventName The name of the event |
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* |
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* @return bool true if the specified event has any listeners, false otherwise |
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*/ |
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public function hasListeners($eventName = null) |
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{ |
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return ($this->symfonyDispatcher->hasListeners($eventName) || |
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$this->laravelDispatcher->hasListeners($eventName)); |
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} |
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/** |
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* Gets the listener priority for a specific event. |
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* |
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* Returns null if the event or the listener does not exist. |
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* |
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* @param string $eventName The name of the event |
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* @param callable $listener The listener |
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* |
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* @return int|null The event listener priority |
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*/ |
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public function getListenerPriority($eventName, $listener) |
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{ |
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return $this->symfonyDispatcher->getListenerPriority($eventName, $listener); |
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} |
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} |
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php-tmdb /
laravel
