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Edit File: PhpView.php

<?php
/**
 * @package   SureCartCore
 * @author    SureCart <support@surecart.com>
 * @copyright 2017-2019 SureCart
 * @license   https://www.gnu.org/licenses/gpl-2.0.html GPL-2.0
 * @link      https://surecart.com/
 */

namespace SureCartCore\View;

use SureCartVendors\GuzzleHttp\Psr7\Utils as Psr7Utils;
use SureCartVendors\GuzzleHttp\Psr7\Response;

/**
 * Render a view file with php.
 */
class PhpView implements ViewInterface {
	use HasNameTrait, HasContextTrait;

/**
	 * PHP view engine.
	 *
	 * @var PhpViewEngine
	 */
	protected $engine = null;

/**
	 * Filepath to view.
	 *
	 * @var string
	 */
	protected $filepath = '';

/**
	 * Layout to use.
	 *
	 * @var ViewInterface|null
	 */
	protected $layout = null;

/**
	 * Constructor.
	 *
	 * @codeCoverageIgnore
	 * @param PhpViewEngine $engine
	 */
	public function __construct( PhpViewEngine $engine ) {
		$this->engine = $engine;
	}

/**
	 * Get filepath.
	 *
	 * @return string
	 */
	public function getFilepath() {
		return $this->filepath;
	}

/**
	 * Set filepath.
	 *
	 * @param  string $filepath
	 * @return static $this
	 */
	public function setFilepath( $filepath ) {
		$this->filepath = $filepath;
		return $this;
	}

/**
	 * Get layout.
	 *
	 * @return ViewInterface|null
	 */
	public function getLayout() {
		return $this->layout;
	}

/**
	 * Set layout.
	 *
	 * @param  ViewInterface|null $layout
	 * @return static             $this
	 */
	public function setLayout( $layout ) {
		$this->layout = $layout;
		return $this;
	}

/**
	 * {@inheritDoc}
	 *
	 * @throws ViewException
	 */
	public function toString() {
		if ( empty( $this->getName() ) ) {
			throw new ViewException( 'View must have a name.' );
		}

if ( empty( $this->getFilepath() ) ) {
			throw new ViewException( 'View must have a filepath.' );
		}

$this->engine->pushLayoutContent( $this );

if ( $this->getLayout() !== null ) {
			return $this->getLayout()->toString();
		}

return $this->engine->getLayoutContent();
	}

/**
	 * {@inheritDoc}
	 *
	 * @throws ViewException
	 */
	public function toResponse() {
		return ( new Response() )
			->withHeader( 'Content-Type', 'text/html' )
			->withBody( Psr7Utils::streamFor( $this->toString() ) );
	}
}

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