<?php
/**
* Post API: Walker_PageDropdown class
*
* @package WordPress
* @subpackage Post
* @since 4.4.0
*/
/**
* Core class used to create an HTML drop-down list of pages.
*
* @since 2.1.0
*
* @see Walker
*/
class Walker_PageDropdown extends Walker {
/**
* What the class handles.
*
* @since 2.1.0
* @var string
*
* @see Walker::$tree_type
*/
public $tree_type = 'page';
/**
* Database fields to use.
*
* @since 2.1.0
* @var string[]
*
* @see Walker::$db_fields
* @todo Decouple this
*/
public $db_fields = array(
'parent' => 'post_parent',
'id' => 'ID',
);
/**
* Starts the element output.
*
* @since 2.1.0
* @since 5.9.0 Renamed `$page` to `$data_object` and `$id` to `$current_object_id`
* to match parent class for PHP 8 named parameter support.
*
* @see Walker::start_el()
*
* @param string $output Used to append additional content. Passed by reference.
* @param WP_Post $data_object Page data object.
* @param int $depth Optional. Depth of page in reference to parent pages.
* Used for padding. Default 0.
* @param array $args Optional. Uses 'selected' argument for selected page to
* set selected HTML attribute for option element. Uses
* 'value_field' argument to fill "value" attribute.
* See wp_dropdown_pages(). Default empty array.
* @param int $current_object_id Optional. ID of the current page. Default 0.
*/
public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
// Restores the more descriptive, specific name for use within this method.
$page = $data_object;
$pad = str_repeat( ' ', $depth * 3 );
if ( ! isset( $args['value_field'] ) || ! isset( $page->{$args['value_field']} ) ) {
$args['value_field'] = 'ID';
}
$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $page->{$args['value_field']} ) . '"';
if ( $page->ID === (int) $args['selected'] ) {
$output .= ' selected="selected"';
}
$output .= '>';
$title = $page->post_title;
if ( '' === $title ) {
/* translators: %d: ID of a post. */
$title = sprintf( __( '#%d (no title)' ), $page->ID );
}
/**
* Filters the page title when creating an HTML drop-down list of pages.
*
* @since 3.1.0
*
* @param string $title Page title.
* @param WP_Post $page Page data object.
*/
$title = apply_filters( 'list_pages', $title, $page );
$output .= $pad . esc_html( $title );
$output .= "</option>\n";
}
}
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.