File Manager

<?php
/**
 * Skin class.
 *
 * @since 1.0.0
 *
 * @package Envira_Gallery
 * @author  Envira Team
 */

namespace Imagely\NGG\Util;

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}


/**
 * Envira Lite Installer Skin
 *
 * @since 1.0.0
 */
class Installer_Skin extends \WP_Upgrader_Skin {

	/**
	 * Primary class constructor.
	 *
	 * @since 1.0.0
	 *
	 * @param array $args Empty array of args (we will use defaults).
	 */
	public function __construct( $args = [] ) {

		parent::__construct();
	}

	/**
	 * Set the upgrader object and store it as a property in the parent class.
	 *
	 * @since 1.0.0
	 *
	 * @param object $upgrader The upgrader object (passed by reference).
	 */
	public function set_upgrader( &$upgrader ) {

		if ( is_object( $upgrader ) ) {
			$this->upgrader =& $upgrader;
		}
	}

	/**
	 * Set the upgrader result and store it as a property in the parent class.
	 *
	 * @since 1.0.0
	 *
	 * @param object $result The result of the install process.
	 */
	public function set_result( $result ) {

		$this->result = $result;
	}

	/**
	 * Empty out the header of its HTML content and only check to see if it has
	 * been performed or not.
	 *
	 * @since 1.0.0
	 */
	public function header() {}

	/**
	 * Empty out the footer of its HTML contents.
	 *
	 * @since 1.0.0
	 */
	public function footer() {}

	/**
	 * Instead of outputting HTML for errors, json_encode the errors and send them
	 * back to the Ajax script for processing.
	 *
	 * @since 1.0.0
	 *
	 * @param array $errors Array of errors with the install process.
	 */
	public function error( $errors ) {

		if ( ! empty( $errors ) ) {
			echo wp_json_encode( [ 'error' => __( 'There was an error installing the addon. Please try again.', 'nggallery' ) ] );
			die;
		}
	}

	/**
	 * Empty out the feedback method to prevent outputting HTML strings as the install
	 * is progressing.
	 *
	 * @since 1.0.0
	 *
	 * @param string $string The feedback string.
	 * @param array  ...$args The args.
	 */
	public function feedback( $string, ...$args ) {} // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.stringFound
}