<?php
/**
* Server-side rendering of the `core/rss` block.
*
* @package WordPress
*/
/**
* Renders the `core/rss` block on server.
*
* @since 5.2.0
*
* @param array $attributes The block attributes.
*
* @return string Returns the block content with received rss items.
*/
function render_block_core_rss( $attributes ) {
if ( in_array( untrailingslashit( $attributes['feedURL'] ), array( site_url(), home_url() ), true ) ) {
return '<div class="components-placeholder"><div class="notice notice-error">' . __( 'Adding an RSS feed to this site’s homepage is not supported, as it could lead to a loop that slows down your site. Try using another block, like the <strong>Latest Posts</strong> block, to list posts from the site.' ) . '</div></div>';
}
$rss = fetch_feed( $attributes['feedURL'] );
if ( is_wp_error( $rss ) ) {
return '<div class="components-placeholder"><div class="notice notice-error"><strong>' . __( 'RSS Error:' ) . '</strong> ' . esc_html( $rss->get_error_message() ) . '</div></div>';
}
if ( ! $rss->get_item_quantity() ) {
return '<div class="components-placeholder"><div class="notice notice-error">' . __( 'An error has occurred, which probably means the feed is down. Try again later.' ) . '</div></div>';
}
$rss_items = $rss->get_items( 0, $attributes['itemsToShow'] );
$list_items = '';
foreach ( $rss_items as $item ) {
$title = esc_html( trim( strip_tags( $item->get_title() ) ) );
if ( empty( $title ) ) {
$title = __( '(no title)' );
}
$link = $item->get_link();
$link = esc_url( $link );
if ( $link ) {
$title = "<a href='{$link}'>{$title}</a>";
}
$title = "<div class='wp-block-rss__item-title'>{$title}</div>";
$date = '';
if ( $attributes['displayDate'] ) {
$date = $item->get_date( 'U' );
if ( $date ) {
$date = sprintf(
'<time datetime="%1$s" class="wp-block-rss__item-publish-date">%2$s</time> ',
esc_attr( date_i18n( 'c', $date ) ),
esc_attr( date_i18n( get_option( 'date_format' ), $date ) )
);
}
}
$author = '';
if ( $attributes['displayAuthor'] ) {
$author = $item->get_author();
if ( is_object( $author ) ) {
$author = $author->get_name();
if ( ! empty( $author ) ) {
$author = '<span class="wp-block-rss__item-author">' . sprintf(
/* translators: byline. %s: author. */
__( 'by %s' ),
esc_html( strip_tags( $author ) )
) . '</span>';
}
}
}
$excerpt = '';
$description = $item->get_description();
if ( $attributes['displayExcerpt'] && ! empty( $description ) ) {
$excerpt = html_entity_decode( $description, ENT_QUOTES, get_option( 'blog_charset' ) );
$excerpt = esc_attr( wp_trim_words( $excerpt, $attributes['excerptLength'], ' […]' ) );
// Change existing [...] to […].
if ( '[...]' === substr( $excerpt, -5 ) ) {
$excerpt = substr( $excerpt, 0, -5 ) . '[…]';
}
$excerpt = '<div class="wp-block-rss__item-excerpt">' . esc_html( $excerpt ) . '</div>';
}
$list_items .= "<li class='wp-block-rss__item'>{$title}{$date}{$author}{$excerpt}</li>";
}
$classnames = array();
if ( isset( $attributes['blockLayout'] ) && 'grid' === $attributes['blockLayout'] ) {
$classnames[] = 'is-grid';
}
if ( isset( $attributes['columns'] ) && 'grid' === $attributes['blockLayout'] ) {
$classnames[] = 'columns-' . $attributes['columns'];
}
if ( $attributes['displayDate'] ) {
$classnames[] = 'has-dates';
}
if ( $attributes['displayAuthor'] ) {
$classnames[] = 'has-authors';
}
if ( $attributes['displayExcerpt'] ) {
$classnames[] = 'has-excerpts';
}
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) );
return sprintf( '<ul %s>%s</ul>', $wrapper_attributes, $list_items );
}
/**
* Registers the `core/rss` block on server.
*
* @since 5.2.0
*/
function register_block_core_rss() {
register_block_type_from_metadata(
__DIR__ . '/rss',
array(
'render_callback' => 'render_block_core_rss',
)
);
}
add_action( 'init', 'register_block_core_rss' );
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.