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<?php
declare(strict_types=1);
/**
* @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCP\EventDispatcher;
use Psr\EventDispatcher\StoppableEventInterface;
/**
* Base event class for the event dispatcher service
*
* Typically this class isn't instantiated directly but sub classed for specific
* event types
*
* This class extended \Symfony\Contracts\EventDispatcher\Event until 21.0, since
* 22.0.0 this class directly implements the PSR StoppableEventInterface and no
* longer relies on Symfony. This transition does not come with any changes in API,
* the class has the same methods and behavior before and after this change.
*
* @since 17.0.0
*/
class Event implements StoppableEventInterface {
/**
* @var bool
*
* @since 22.0.0
*/
private $propagationStopped = false;
/**
* Compatibility constructor
*
* In Nextcloud 17.0.0 this event class used a now deprecated/removed Symfony base
* class that had a constructor (with default arguments). To lower the risk of
* a breaking change (PHP won't allow parent constructor calls if there is none),
* this empty constructor's only purpose is to hopefully not break existing sub-
* classes of this class.
*
* @since 18.0.0
*/
public function __construct() {
}
/**
* Stops the propagation of the event to further event listeners
*
* @return void
*
* @since 22.0.0
*/
public function stopPropagation(): void {
$this->propagationStopped = true;
}
/**
* {@inheritDoc}
*
* @since 22.0.0
* @see \Psr\EventDispatcher\StoppableEventInterface
*/
public function isPropagationStopped(): bool {
return $this->propagationStopped;
}
}
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