<?php /** * Upgrader API: WP_Upgrader_Skin class * * @package WordPress * @subpackage Upgrader * @since 4.6.0 */ /** * Generic Skin for the WordPress Upgrader classes. This skin is designed to be extended for specific purposes. * * @since 2.8.0 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader-skins.php. */ #[AllowDynamicProperties] class WP_Upgrader_Skin { /** * Holds the upgrader data. * * @since 2.8.0 * @var WP_Upgrader */ public $upgrader; /** * Whether header is done. * * @since 2.8.0 * @var bool */ public $done_header = false; /** * Whether footer is done. * * @since 2.8.0 * @var bool */ public $done_footer = false; /** * Holds the result of an upgrade. * * @since 2.8.0 * @var string|bool|WP_Error */ public $result = false; /** * Holds the options of an upgrade. * * @since 2.8.0 * @var array */ public $options = array(); /** * Constructor. * * Sets up the generic skin for the WordPress Upgrader classes. * * @since 2.8.0 * * @param array $args Optional. The WordPress upgrader skin arguments to * override default options. Default empty array. */ public function __construct( $args = array() ) { $defaults = array( 'url' => '', 'nonce' => '', 'title' => '', 'context' => false, ); $this->options = wp_parse_args( $args, $defaults ); } /** * Sets the relationship between the skin being used and the upgrader. * * @since 2.8.0 * * @param WP_Upgrader $upgrader */ public function set_upgrader( &$upgrader ) { if ( is_object( $upgrader ) ) { $this->upgrader =& $upgrader; } $this->add_strings(); } /** * Sets up the strings used in the update process. * * @since 3.0.0 */ public function add_strings() { } /** * Sets the result of an upgrade. * * @since 2.8.0 * * @param string|bool|WP_Error $result The result of an upgrade. */ public function set_result( $result ) { $this->result = $result; } /** * Displays a form to the user to request for their FTP/SSH details in order * to connect to the filesystem. * * @since 2.8.0 * @since 4.6.0 The `$context` parameter default changed from `false` to an empty string. * * @see request_filesystem_credentials() * * @param bool|WP_Error $error Optional. Whether the current request has failed to connect, * or an error object. Default false. * @param string $context Optional. Full path to the directory that is tested * for being writable. Default empty. * @param bool $allow_relaxed_file_ownership Optional. Whether to allow Group/World writable. Default false. * @return bool True on success, false on failure. */ public function request_filesystem_credentials( $error = false, $context = '', $allow_relaxed_file_ownership = false ) { $url = $this->options['url']; if ( ! $context ) { $context = $this->options['context']; } if ( ! empty( $this->options['nonce'] ) ) { $url = wp_nonce_url( $url, $this->options['nonce'] ); } $extra_fields = array(); return request_filesystem_credentials( $url, '', $error, $context, $extra_fields, $allow_relaxed_file_ownership ); } /** * Displays the header before the update process. * * @since 2.8.0 */ public function header() { if ( $this->done_header ) { return; } $this->done_header = true; echo '<div class="wrap">'; echo '<h1>' . $this->options['title'] . '</h1>'; } /** * Displays the footer following the update process. * * @since 2.8.0 */ public function footer() { if ( $this->done_footer ) { return; } $this->done_footer = true; echo '</div>'; } /** * Displays an error message about the update. * * @since 2.8.0 * * @param string|WP_Error $errors Errors. */ public function error( $errors ) { if ( ! $this->done_header ) { $this->header(); } if ( is_string( $errors ) ) { $this->feedback( $errors ); } elseif ( is_wp_error( $errors ) && $errors->has_errors() ) { foreach ( $errors->get_error_messages() as $message ) { if ( $errors->get_error_data() && is_string( $errors->get_error_data() ) ) { $this->feedback( $message . ' ' . esc_html( strip_tags( $errors->get_error_data() ) ) ); } else { $this->feedback( $message ); } } } } /** * Displays a message about the update. * * @since 2.8.0 * @since 5.9.0 Renamed `$string` (a PHP reserved keyword) to `$feedback` for PHP 8 named parameter support. * * @param string $feedback Message data. * @param mixed ...$args Optional text replacements. */ public function feedback( $feedback, ...$args ) { if ( isset( $this->upgrader->strings[ $feedback ] ) ) { $feedback = $this->upgrader->strings[ $feedback ]; } if ( str_contains( $feedback, '%' ) ) { if ( $args ) { $args = array_map( 'strip_tags', $args ); $args = array_map( 'esc_html', $args ); $feedback = vsprintf( $feedback, $args ); } } if ( empty( $feedback ) ) { return; } show_message( $feedback ); } /** * Performs an action before an update. * * @since 2.8.0 */ public function before() {} /** * Performs an action following an update. * * @since 2.8.0 */ public function after() {} /** * Outputs JavaScript that calls function to decrement the update counts. * * @since 3.9.0 * * @param string $type Type of update count to decrement. Likely values include 'plugin', * 'theme', 'translation', etc. */ protected function decrement_update_count( $type ) { if ( ! $this->result || is_wp_error( $this->result ) || 'up_to_date' === $this->result ) { return; } if ( defined( 'IFRAME_REQUEST' ) ) { echo '<script type="text/javascript"> if ( window.postMessage && JSON ) { window.parent.postMessage( JSON.stringify( { action: "decrementUpdateCount", upgradeType: "' . $type . '" } ), window.location.protocol + "//" + window.location.hostname + ( "" !== window.location.port ? ":" + window.location.port : "" ) ); } </script>'; } else { echo '<script type="text/javascript"> (function( wp ) { if ( wp && wp.updates && wp.updates.decrementCount ) { wp.updates.decrementCount( "' . $type . '" ); } })( window.wp ); </script>'; } } /** * Displays the header before the bulk update process. * * @since 3.0.0 */ public function bulk_header() {} /** * Displays the footer following the bulk update process. * * @since 3.0.0 */ public function bulk_footer() {} /** * Hides the `process_failed` error message when updating by uploading a zip file. * * @since 5.5.0 * * @param WP_Error $wp_error WP_Error object. * @return bool True if the error should be hidden, false otherwise. */ public function hide_process_failed( $wp_error ) { return false; } }

ميديا

“ألعاب الواقع الافتراضي: رحلة إلى عوالم تفاعلية غامرة”

يونيو 12, 2025

1٬814 أقل من دقيقة

في هذا التقرير المصور، نأخذك في جولة بصرية داخل عالم ألعاب الواقع الافتراضي (VR)، حيث تندمج التكنولوجيا مع الترفيه لخلق تجارب لا مثيل لها. من خلال نظارات الواقع الافتراضي المتطورة، يمكن للاعبين التفاعل مع بيئات ثلاثية الأبعاد، مما يتيح لهم الانغماس الكامل في الألعاب. سنستعرض أبرز الألعاب المتاحة، مثل “Beat Saber” و”Half-Life: Alyx”، التي تقدم تجارب تفاعلية مبتكرة. كما نسلط الضوء على التحديات التي تواجه هذه التقنية، مثل التكلفة المرتفعة ومشاكل الراحة أثناء الاستخدام الطويل. انضم إلينا لاكتشاف كيف يُعيد الواقع الافتراضي تعريف مفهوم اللعب ويشكل مستقبل صناعة الألعاب.