Critics have remarked that those four worthies were truly peerless throughout the ages; yet the present falls short of the past—the ancients favored unadorned simplicity, whereas the moderns prefer refined elegance. Styles of substance and ornament rise and fall in succession, shifting with the changing mores of the times; such evolution is simply the natural order of things. The ideal lies in honoring antiquity without clashing with the present, and embracing modernity without succumbing to its flaws—embodying that perfect balance of substance and refinement that defines the true gentleman. There is surely no need to abandon a carved palace in favor of a cave dwelling, or to trade a jade carriage for a primitive cart with solid wooden wheels.🌌 SpectraShell

🌌 SpectraShell

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📄 Viewing: class-wp-ajax-upgrader-skin.php

<?php
/**
 * Upgrader API: WP_Ajax_Upgrader_Skin class
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 4.6.0
 */

/**
 * Upgrader Skin for Ajax WordPress upgrades.
 *
 * This skin is designed to be used for Ajax updates.
 *
 * @since 4.6.0
 *
 * @see Automatic_Upgrader_Skin
 */
class WP_Ajax_Upgrader_Skin extends Automatic_Upgrader_Skin {

	/**
	 * Plugin info.
	 *
	 * The Plugin_Upgrader::bulk_upgrade() method will fill this in
	 * with info retrieved from the get_plugin_data() function.
	 *
	 * @var array Plugin data. Values will be empty if not supplied by the plugin.
	 */
	public $plugin_info = array();

	/**
	 * Theme info.
	 *
	 * The Theme_Upgrader::bulk_upgrade() method will fill this in
	 * with info retrieved from the Theme_Upgrader::theme_info() method,
	 * which in turn calls the wp_get_theme() function.
	 *
	 * @var WP_Theme|false The theme's info object, or false.
	 */
	public $theme_info = false;

	/**
	 * Holds the WP_Error object.
	 *
	 * @since 4.6.0
	 *
	 * @var null|WP_Error
	 */
	protected $errors = null;

	/**
	 * Constructor.
	 *
	 * Sets up the WordPress Ajax upgrader skin.
	 *
	 * @since 4.6.0
	 *
	 * @see WP_Upgrader_Skin::__construct()
	 *
	 * @param array $args Optional. The WordPress Ajax upgrader skin arguments to
	 *                    override default options. See WP_Upgrader_Skin::__construct().
	 *                    Default empty array.
	 */
	public function __construct( $args = array() ) {
		parent::__construct( $args );

		$this->errors = new WP_Error();
	}

	/**
	 * Retrieves the list of errors.
	 *
	 * @since 4.6.0
	 *
	 * @return WP_Error Errors during an upgrade.
	 */
	public function get_errors() {
		return $this->errors;
	}

	/**
	 * Retrieves a string for error messages.
	 *
	 * @since 4.6.0
	 *
	 * @return string Error messages during an upgrade.
	 */
	public function get_error_messages() {
		$messages = array();

		foreach ( $this->errors->get_error_codes() as $error_code ) {
			$error_data = $this->errors->get_error_data( $error_code );

			if ( $error_data && is_string( $error_data ) ) {
				$messages[] = $this->errors->get_error_message( $error_code ) . ' ' . esc_html( strip_tags( $error_data ) );
			} else {
				$messages[] = $this->errors->get_error_message( $error_code );
			}
		}

		return implode( ', ', $messages );
	}

	/**
	 * Stores an error message about the upgrade.
	 *
	 * @since 4.6.0
	 * @since 5.3.0 Formalized the existing `...$args` parameter by adding it
	 *              to the function signature.
	 *
	 * @param string|WP_Error $errors  Errors.
	 * @param mixed           ...$args Optional text replacements.
	 */
	public function error( $errors, ...$args ) {
		if ( is_string( $errors ) ) {
			$string = $errors;
			if ( ! empty( $this->upgrader->strings[ $string ] ) ) {
				$string = $this->upgrader->strings[ $string ];
			}

			if ( str_contains( $string, '%' ) ) {
				if ( ! empty( $args ) ) {
					$string = vsprintf( $string, $args );
				}
			}

			// Count existing errors to generate a unique error code.
			$errors_count = count( $this->errors->get_error_codes() );
			$this->errors->add( 'unknown_upgrade_error_' . ( $errors_count + 1 ), $string );
		} elseif ( is_wp_error( $errors ) ) {
			foreach ( $errors->get_error_codes() as $error_code ) {
				$this->errors->add( $error_code, $errors->get_error_message( $error_code ), $errors->get_error_data( $error_code ) );
			}
		}

		parent::error( $errors, ...$args );
	}

	/**
	 * Stores a message about the upgrade.
	 *
	 * @since 4.6.0
	 * @since 5.3.0 Formalized the existing `...$args` parameter by adding it
	 *              to the function signature.
	 * @since 5.9.0 Renamed `$data` to `$feedback` for PHP 8 named parameter support.
	 *
	 * @param string|array|WP_Error $feedback Message data.
	 * @param mixed                 ...$args  Optional text replacements.
	 */
	public function feedback( $feedback, ...$args ) {
		if ( is_wp_error( $feedback ) ) {
			foreach ( $feedback->get_error_codes() as $error_code ) {
				$this->errors->add( $error_code, $feedback->get_error_message( $error_code ), $feedback->get_error_data( $error_code ) );
			}
		}

		parent::feedback( $feedback, ...$args );
	}
}

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