From a415c29efee45520ae252d2aa28f1083a521cd7b Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 09:56:49 +0200
Subject: Adding upstream version 6.4.3+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 wp-includes/class-walker-page-dropdown.php | 97 ++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 wp-includes/class-walker-page-dropdown.php

(limited to 'wp-includes/class-walker-page-dropdown.php')

diff --git a/wp-includes/class-walker-page-dropdown.php b/wp-includes/class-walker-page-dropdown.php
new file mode 100644
index 0000000..08e5281
--- /dev/null
+++ b/wp-includes/class-walker-page-dropdown.php
@@ -0,0 +1,97 @@
+<?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( '&nbsp;', $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";
+	}
+}
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