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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\View\Element\UiComponent;
use Magento\Framework\View\Element\UiComponentInterface;
/**
* Class Processor
*/
class Processor implements PoolInterface, SubjectInterface
{
/**
* @var UiComponentInterface[]
*/
protected $components = [];
/**
* Array of observers
*
* [
* 'component_type1' => ObserverInterface[],
* 'component_type2' => ObserverInterface[],
* ]
*
* @var array
*/
protected $observers = [];
/**
* @inheritDoc
*/
public function register(UiComponentInterface $component)
{
$this->components[] = $component;
}
/**
* @inheritDoc
*/
public function getComponents()
{
return $this->components;
}
/**
* @inheritDoc
*/
public function attach($type, ObserverInterface $observer)
{
$this->observers[$type][] = $observer;
}
/**
* @inheritDoc
*/
public function detach($type, ObserverInterface $observer)
{
if (!isset($this->observers[$type])) {
return;
}
$key = array_search($observer, $this->observers[$type], true);
if ($key !== false) {
unset($this->observers[$type][$key]);
}
}
/**
* @inheritDoc
*/
public function notify($type)
{
$componentType = $this->normalizeType($type);
if (!isset($this->observers[$componentType])) {
return;
}
/** @var UiComponentInterface $component */
foreach ($this->getComponents() as $component) {
if ($component->getComponentName() != $type) {
continue;
}
/** @var ObserverInterface $observer */
foreach ($this->observers[$componentType] as $observer) {
$observer->update($component);
}
}
}
/**
* Normalize type to component type
*
* @param string $type
* @return string
*/
protected function normalizeType($type)
{
$componentType = (strpos($type, '.') !== false) ? substr($type, 0, strpos($type, '.')) : $type;
return $componentType;
}
}