<?php
/**
* Server-side rendering of the `core/legacy-widget` block.
*
* @package WordPress
*/
/**
* Renders the 'core/legacy-widget' block.
*
* @since 5.8.0
*
* @global int $wp_widget_factory.
*
* @param array $attributes The block attributes.
*
* @return string Rendered block.
*/
function render_block_core_legacy_widget( $attributes ) {
global $wp_widget_factory;
if ( isset( $attributes['id'] ) ) {
$sidebar_id = wp_find_widgets_sidebar( $attributes['id'] );
return wp_render_widget( $attributes['id'], $sidebar_id );
}
if ( ! isset( $attributes['idBase'] ) ) {
return '';
}
$id_base = $attributes['idBase'];
$widget_key = $wp_widget_factory->get_widget_key( $id_base );
$widget_object = $wp_widget_factory->get_widget_object( $id_base );
if ( ! $widget_key || ! $widget_object ) {
return '';
}
if ( isset( $attributes['instance']['encoded'], $attributes['instance']['hash'] ) ) {
$serialized_instance = base64_decode( $attributes['instance']['encoded'] );
if ( ! hash_equals( wp_hash( $serialized_instance ), (string) $attributes['instance']['hash'] ) ) {
return '';
}
$instance = unserialize( $serialized_instance );
} else {
$instance = array();
}
$args = array(
'widget_id' => $widget_object->id,
'widget_name' => $widget_object->name,
);
ob_start();
the_widget( $widget_key, $instance, $args );
return ob_get_clean();
}
/**
* Registers the 'core/legacy-widget' block.
*
* @since 5.8.0
*/
function register_block_core_legacy_widget() {
register_block_type_from_metadata(
__DIR__ . '/legacy-widget',
array(
'render_callback' => 'render_block_core_legacy_widget',
)
);
}
add_action( 'init', 'register_block_core_legacy_widget' );
/**
* Intercepts any request with legacy-widget-preview in the query param and, if
* set, renders a page containing a preview of the requested Legacy Widget
* block.
*
* @since 5.8.0
*/
function handle_legacy_widget_preview_iframe() {
if ( empty( $_GET['legacy-widget-preview'] ) ) {
return;
}
if ( ! current_user_can( 'edit_theme_options' ) ) {
return;
}
define( 'IFRAME_REQUEST', true );
?>
<!doctype html>
<html <?php language_attributes(); ?>>
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="profile" href="https://gmpg.org/xfn/11" />
<?php wp_head(); ?>
<style>
/* Reset theme styles */
html, body, #page, #content {
padding: 0 !important;
margin: 0 !important;
}
/* Hide root level text nodes */
body {
font-size: 0 !important;
}
/* Hide non-widget elements */
body *:not(#page):not(#content):not(.widget):not(.widget *) {
display: none !important;
font-size: 0 !important;
height: 0 !important;
left: -9999px !important;
max-height: 0 !important;
max-width: 0 !important;
opacity: 0 !important;
pointer-events: none !important;
position: absolute !important;
top: -9999px !important;
transform: translate(-9999px, -9999px) !important;
visibility: hidden !important;
z-index: -999 !important;
}
/* Restore widget font-size */
.widget {
font-size: var(--global--font-size-base);
}
</style>
</head>
<body <?php body_class(); ?>>
<div id="page" class="site">
<div id="content" class="site-content">
<?php
$registry = WP_Block_Type_Registry::get_instance();
$block = $registry->get_registered( 'core/legacy-widget' );
echo $block->render( $_GET['legacy-widget-preview'] );
?>
</div><!-- #content -->
</div><!-- #page -->
<?php wp_footer(); ?>
</body>
</html>
<?php
exit;
}
// Use admin_init instead of init to ensure get_current_screen function is already available.
// This isn't strictly required, but enables better compatibility with existing plugins.
// See: https://github.com/WordPress/gutenberg/issues/32624.
add_action( 'admin_init', 'handle_legacy_widget_preview_iframe', 20 );
في جولة حصرية داخل “الغرفة الزرقاء” بقناة BBC العربية، نكشف كواليس واحدة من أكثر غرف الأخبار تطورًا في العالم.
كيف الذكاء اصطناعي يتحكم بالبث دون تدخل بشري، لتقدم تجربة بصرية مذهلة.
الفيديو يستعرض كيف تمزج BBC بين التقنية والاحتراف لتصنع نشرات إخبارية من قلب المستقبل.