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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\View\Element;
/**
* @api
* @since 100.0.2
*/
class RendererList extends AbstractBlock
{
/**
* Renderer templates cache
*
* @var array
*/
protected $rendererTemplates = [];
/**
* Retrieve renderer by code
*
* @param string $type
* @param string $default
* @param string $rendererTemplate
* @return bool|AbstractBlock
* @throws \RuntimeException
*/
public function getRenderer($type, $default = null, $rendererTemplate = null)
{
/** @var \Magento\Framework\View\Element\Template $renderer */
$renderer = $this->getChildBlock($type) ?: $this->getChildBlock($default);
if (!$renderer instanceof BlockInterface) {
throw new \RuntimeException('Renderer for type "' . $type . '" does not exist.');
}
$renderer->setRenderedBlock($this);
if (!isset($this->rendererTemplates[$type])) {
$this->rendererTemplates[$type] = $renderer->getTemplate();
} else {
$renderer->setTemplate($this->rendererTemplates[$type]);
}
if ($rendererTemplate) {
$renderer->setTemplate($rendererTemplate);
}
return $renderer;
}
}