140 lines
4.7 KiB
PHP
140 lines
4.7 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @author 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OC\EventDispatcher;
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use function is_callable;
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use OCP\EventDispatcher\Event;
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use Symfony\Component\EventDispatcher\Event as SymfonyEvent;
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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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class SymfonyAdapter implements EventDispatcherInterface {
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/** @var EventDispatcher */
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private $eventDispatcher;
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public function __construct(EventDispatcher $eventDispatcher) {
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$this->eventDispatcher = $eventDispatcher;
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}
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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 SymfonyEvent|null $event The event to pass to the event handlers/listeners
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* If not supplied, an empty Event instance is created
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*
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* @return SymfonyEvent
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*/
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public function dispatch($eventName, SymfonyEvent $event = null) {
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if ($event instanceof Event) {
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$this->eventDispatcher->dispatch($eventName, $event);
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} else {
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// Legacy event
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$this->eventDispatcher->getSymfonyDispatcher()->dispatch($eventName, $event);
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}
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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 $priority The higher this value, the earlier an event
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* listener will be triggered in the chain (defaults to 0)
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*/
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public function addListener($eventName, $listener, $priority = 0) {
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if (is_callable($listener)) {
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$this->eventDispatcher->addListener($eventName, $listener, $priority);
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} else {
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// Legacy listener
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$this->eventDispatcher->getSymfonyDispatcher()->addListener($eventName, $listener, $priority);
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}
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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 it is
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* interested in and added as a listener for these events.
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*/
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public function addSubscriber(EventSubscriberInterface $subscriber) {
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$this->eventDispatcher->getSymfonyDispatcher()->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 $listener The listener to remove
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*/
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public function removeListener($eventName, $listener) {
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$this->eventDispatcher->getSymfonyDispatcher()->removeListener($eventName, $listener);
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}
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public function removeSubscriber(EventSubscriberInterface $subscriber) {
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$this->eventDispatcher->getSymfonyDispatcher()->removeSubscriber($subscriber);
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}
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/**
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* Gets the listeners of a specific event or all listeners sorted by descending priority.
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*
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* @param string|null $eventName The name of the event
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*
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* @return array The event listeners for the specified event, or all event listeners by event name
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*/
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public function getListeners($eventName = null) {
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return $this->eventDispatcher->getSymfonyDispatcher()->getListeners($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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return $this->eventDispatcher->getSymfonyDispatcher()->getListenerPriority($eventName, $listener);
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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|null $eventName The name of the event
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*
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* @return bool true if the specified event has any listeners, false otherwise
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*/
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public function hasListeners($eventName = null) {
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return $this->eventDispatcher->getSymfonyDispatcher()->hasListeners($eventName);
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}
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}
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