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- <?php
- /**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * 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, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
- namespace OC\Hooks;
-
- /**
- * Class ForwardingEmitter
- *
- * allows forwarding all listen calls to other emitters
- *
- * @package OC\Hooks
- */
- abstract class ForwardingEmitter extends BasicEmitter {
- /**
- * @var \OC\Hooks\Emitter[] array
- */
- private $forwardEmitters = [];
-
- /**
- * @param string $scope
- * @param string $method
- * @param callable $callback
- */
- public function listen($scope, $method, callable $callback) {
- parent::listen($scope, $method, $callback);
- foreach ($this->forwardEmitters as $emitter) {
- $emitter->listen($scope, $method, $callback);
- }
- }
-
- /**
- * @param \OC\Hooks\Emitter $emitter
- */
- protected function forward(Emitter $emitter) {
- $this->forwardEmitters[] = $emitter;
-
- //forward all previously connected hooks
- foreach ($this->listeners as $key => $listeners) {
- list($scope, $method) = explode('::', $key, 2);
- foreach ($listeners as $listener) {
- $emitter->listen($scope, $method, $listener);
- }
- }
- }
- }
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