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<?php
/**
* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
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 = array();
/**
* @param string $scope
* @param string $method
* @param callable $callback
*/
public function listen($scope, $method, $callback) {
parent::listen($scope, $method, $callback);
foreach ($this->forwardEmitters as $emitter) {
$emitter->listen($scope, $method, $callback);
}
}
/**
* @param \OC\Hooks\Emitter $emitter
*/
protected function forward($emitter) {
$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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