<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/

/**
* Event object and dispatcher
*
* @author Magento Core Team <core@magentocommerce.com>
*/
namespace Magento\Framework;

/**
* @api
* @since 100.0.2
*/
class Event extends \Magento\Framework\DataObject
{
/**
* Observers collection
*
* @var \Magento\Framework\Event\Observer\Collection
*/
protected $_observers;

/**
* Constructor
*
* Initializes observers collection
*
* @param array $data
*/
public function __construct(array $data = [])
{
$this->_observers = new \Magento\Framework\Event\Observer\Collection();
parent::__construct($data);
}

/**
* Returns all the registered observers for the event
*
* @return \Magento\Framework\Event\Observer\Collection
*/
public function getObservers()
{
return $this->_observers;
}

/**
* Register an observer for the event
*
* @param \Magento\Framework\Event\Observer $observer
* @return $this
*/
public function addObserver(\Magento\Framework\Event\Observer $observer)
{
$this->getObservers()->addObserver($observer);
return $this;
}

/**
* Removes an observer by its name
*
* @param string $observerName
* @return $this
*/
public function removeObserverByName($observerName)
{
$this->getObservers()->removeObserverByName($observerName);
return $this;
}

/**
* Dispatches the event to registered observers
*
* @return $this
*/
public function dispatch()
{
$this->getObservers()->dispatch($this);
return $this;
}

/**
* Retrieve event name
*
* @return string
*/
public function getName()
{
return $this->_data['name'] ?? null;
}

/**
* @param string $data
* @return $this
*/
public function setName($data)
{
$this->_data['name'] = $data;
return $this;
}

/**
* @return mixed
*/
public function getBlock()
{
return $this->_getData('block');
}
}