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<?php
/**
 * Nav Menu API: Template functions
 *
 * @package WordPress
 * @subpackage Nav_Menus
 * @since 3.0.0
 */

// Don't load directly.
if ( ! defined( 'ABSPATH' ) ) {
	die( '-1' );
}

/** Walker_Nav_Menu class */
require_once ABSPATH . WPINC . '/class-walker-nav-menu.php';

/**
 * Displays a navigation menu.
 *
 * @since 3.0.0
 * @since 4.7.0 Added the `item_spacing` argument.
 * @since 5.5.0 Added the `container_aria_label` argument.
 *
 * @param array $args {
 *     Optional. Array of nav menu arguments.
 *
 *     @type int|string|WP_Term $menu                 Desired menu. Accepts a menu ID, slug, name, or object.
 *                                                    Default empty.
 *     @type string             $menu_class           CSS class to use for the ul element which forms the menu.
 *                                                    Default 'menu'.
 *     @type string             $menu_id              The ID that is applied to the ul element which forms the menu.
 *                                                    Default is the menu slug, incremented.
 *     @type string             $container            Whether to wrap the ul, and what to wrap it with.
 *                                                    Default 'div'.
 *     @type string             $container_class      Class that is applied to the container.
 *                                                    Default 'menu-{menu slug}-container'.
 *     @type string             $container_id         The ID that is applied to the container. Default empty.
 *     @type string             $container_aria_label The aria-label attribute that is applied to the container
 *                                                    when it's a nav element. Default empty.
 *     @type callable|false     $fallback_cb          If the menu doesn't exist, a callback function will fire.
 *                                                    Default is 'wp_page_menu'. Set to false for no fallback.
 *     @type string             $before               Text before the link markup. Default empty.
 *     @type string             $after                Text after the link markup. Default empty.
 *     @type string             $link_before          Text before the link text. Default empty.
 *     @type string             $link_after           Text after the link text. Default empty.
 *     @type bool               $echo                 Whether to echo the menu or return it. Default true.
 *     @type int                $depth                How many levels of the hierarchy are to be included.
 *                                                    0 means all. Default 0.
 *                                                    Default 0.
 *     @type object             $walker               Instance of a custom walker class. Default empty.
 *     @type string             $theme_location       Theme location to be used. Must be registered with
 *                                                    register_nav_menu() in order to be selectable by the user.
 *     @type string             $items_wrap           How the list items should be wrapped. Uses printf() format with
 *                                                    numbered placeholders. Default is a ul with an id and class.
 *     @type string             $item_spacing         Whether to preserve whitespace within the menu's HTML.
 *                                                    Accepts 'preserve' or 'discard'. Default 'preserve'.
 * }
 * @return void|string|false Void if 'echo' argument is true, menu output if 'echo' is false.
 *                           False if there are no items or no menu was found.
 */
function wp_nav_menu( $args = array() ) {
	static $menu_id_slugs = array();

$defaults = array(
		'menu'                 => '',
		'container'            => 'div',
		'container_class'      => '',
		'container_id'         => '',
		'container_aria_label' => '',
		'menu_class'           => 'menu',
		'menu_id'              => '',
		'echo'                 => true,
		'fallback_cb'          => 'wp_page_menu',
		'before'               => '',
		'after'                => '',
		'link_before'          => '',
		'link_after'           => '',
		'items_wrap'           => '<ul id="%1$s" class="%2$s">%3$s</ul>',
		'item_spacing'         => 'preserve',
		'depth'                => 0,
		'walker'               => '',
		'theme_location'       => '',
	);

$args = wp_parse_args( $args, $defaults );

if ( ! in_array( $args['item_spacing'], array( 'preserve', 'discard' ), true ) ) {
		// Invalid value, fall back to default.
		$args['item_spacing'] = $defaults['item_spacing'];
	}

/**
	 * Filters the arguments used to display a navigation menu.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param array $args Array of wp_nav_menu() arguments.
	 */
	$args = apply_filters( 'wp_nav_menu_args', $args );
	$args = (object) $args;

/**
	 * Filters whether to short-circuit the wp_nav_menu() output.
	 *
	 * Returning a non-null value from the filter will short-circuit wp_nav_menu(),
	 * echoing that value if $args->echo is true, returning that value otherwise.
	 *
	 * @since 3.9.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param string|null $output Nav menu output to short-circuit with. Default null.
	 * @param stdClass    $args   An object containing wp_nav_menu() arguments.
	 */
	$nav_menu = apply_filters( 'pre_wp_nav_menu', null, $args );

if ( null !== $nav_menu ) {
		if ( $args->echo ) {
			echo $nav_menu;
			return;
		}

return $nav_menu;
	}

// Get the nav menu based on the requested menu.
	$menu = wp_get_nav_menu_object( $args->menu );

// Get the nav menu based on the theme_location.
	$locations = get_nav_menu_locations();
	if ( ! $menu && $args->theme_location && $locations && isset( $locations[ $args->theme_location ] ) ) {
		$menu = wp_get_nav_menu_object( $locations[ $args->theme_location ] );
	}

// Get the first menu that has items if we still can't find a menu.
	if ( ! $menu && ! $args->theme_location ) {
		$menus = wp_get_nav_menus();
		foreach ( $menus as $menu_maybe ) {
			$menu_items = wp_get_nav_menu_items( $menu_maybe->term_id, array( 'update_post_term_cache' => false ) );
			if ( $menu_items ) {
				$menu = $menu_maybe;
				break;
			}
		}
	}

if ( empty( $args->menu ) ) {
		$args->menu = $menu;
	}

// If the menu exists, get its items.
	if ( $menu && ! is_wp_error( $menu ) && ! isset( $menu_items ) ) {
		$menu_items = wp_get_nav_menu_items( $menu->term_id, array( 'update_post_term_cache' => false ) );
	}

/*
	 * If no menu was found:
	 *  - Fall back (if one was specified), or bail.
	 *
	 * If no menu items were found:
	 *  - Fall back, but only if no theme location was specified.
	 *  - Otherwise, bail.
	 */
	if ( ( ! $menu || is_wp_error( $menu ) || ( isset( $menu_items ) && empty( $menu_items ) && ! $args->theme_location ) )
		&& isset( $args->fallback_cb ) && $args->fallback_cb && is_callable( $args->fallback_cb ) ) {
			return call_user_func( $args->fallback_cb, (array) $args );
	}

if ( ! $menu || is_wp_error( $menu ) ) {
		return false;
	}

$nav_menu = '';
	$items    = '';

$show_container = false;
	if ( $args->container ) {
		/**
		 * Filters the list of HTML tags that are valid for use as menu containers.
		 *
		 * @since 3.0.0
		 *
		 * @param string[] $tags The acceptable HTML tags for use as menu containers.
		 *                       Default is array containing 'div' and 'nav'.
		 */
		$allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );

if ( is_string( $args->container ) && in_array( $args->container, $allowed_tags, true ) ) {
			$show_container = true;
			$class          = $args->container_class ? ' class="' . esc_attr( $args->container_class ) . '"' : ' class="menu-' . $menu->slug . '-container"';
			$id             = $args->container_id ? ' id="' . esc_attr( $args->container_id ) . '"' : '';
			$aria_label     = ( 'nav' === $args->container && $args->container_aria_label ) ? ' aria-label="' . esc_attr( $args->container_aria_label ) . '"' : '';
			$nav_menu      .= '<' . $args->container . $id . $class . $aria_label . '>';
		}
	}

// Set up the $menu_item variables.
	_wp_menu_item_classes_by_context( $menu_items );

$sorted_menu_items        = array();
	$menu_items_with_children = array();
	foreach ( (array) $menu_items as $menu_item ) {
		/*
		 * Fix invalid `menu_item_parent`. See: https://core.trac.wordpress.org/ticket/56926.
		 * Compare as strings. Plugins may change the ID to a string.
		 */
		if ( (string) $menu_item->ID === (string) $menu_item->menu_item_parent ) {
			$menu_item->menu_item_parent = 0;
		}

$sorted_menu_items[ $menu_item->menu_order ] = $menu_item;
		if ( $menu_item->menu_item_parent ) {
			$menu_items_with_children[ $menu_item->menu_item_parent ] = true;
		}
	}

// Add the menu-item-has-children class where applicable.
	if ( $menu_items_with_children ) {
		foreach ( $sorted_menu_items as &$menu_item ) {
			if ( isset( $menu_items_with_children[ $menu_item->ID ] ) ) {
				$menu_item->classes[] = 'menu-item-has-children';
			}
		}
	}

unset( $menu_items, $menu_item );

/**
	 * Filters the sorted list of menu item objects before generating the menu's HTML.
	 *
	 * @since 3.1.0
	 *
	 * @param array    $sorted_menu_items The menu items, sorted by each menu item's menu order.
	 * @param stdClass $args              An object containing wp_nav_menu() arguments.
	 */
	$sorted_menu_items = apply_filters( 'wp_nav_menu_objects', $sorted_menu_items, $args );

$items .= walk_nav_menu_tree( $sorted_menu_items, $args->depth, $args );
	unset( $sorted_menu_items );

// Attributes.
	if ( ! empty( $args->menu_id ) ) {
		$wrap_id = $args->menu_id;
	} else {
		$wrap_id = 'menu-' . $menu->slug;

while ( in_array( $wrap_id, $menu_id_slugs, true ) ) {
			if ( preg_match( '#-(\d+)$#', $wrap_id, $matches ) ) {
				$wrap_id = preg_replace( '#-(\d+)$#', '-' . ++$matches[1], $wrap_id );
			} else {
				$wrap_id = $wrap_id . '-1';
			}
		}
	}
	$menu_id_slugs[] = $wrap_id;

$wrap_class = $args->menu_class ? $args->menu_class : '';

/**
	 * Filters the HTML list content for navigation menus.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param string   $items The HTML list content for the menu items.
	 * @param stdClass $args  An object containing wp_nav_menu() arguments.
	 */
	$items = apply_filters( 'wp_nav_menu_items', $items, $args );
	/**
	 * Filters the HTML list content for a specific navigation menu.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param string   $items The HTML list content for the menu items.
	 * @param stdClass $args  An object containing wp_nav_menu() arguments.
	 */
	$items = apply_filters( "wp_nav_menu_{$menu->slug}_items", $items, $args );

// Don't print any markup if there are no items at this point.
	if ( empty( $items ) ) {
		return false;
	}

$nav_menu .= sprintf( $args->items_wrap, esc_attr( $wrap_id ), esc_attr( $wrap_class ), $items );
	unset( $items );

if ( $show_container ) {
		$nav_menu .= '</' . $args->container . '>';
	}

/**
	 * Filters the HTML content for navigation menus.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param string   $nav_menu The HTML content for the navigation menu.
	 * @param stdClass $args     An object containing wp_nav_menu() arguments.
	 */
	$nav_menu = apply_filters( 'wp_nav_menu', $nav_menu, $args );

if ( $args->echo ) {
		echo $nav_menu;
	} else {
		return $nav_menu;
	}
}

/**
 * Adds the class property classes for the current context, if applicable.
 *
 * @access private
 * @since 3.0.0
 *
 * @global WP_Query   $wp_query   WordPress Query object.
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param array $menu_items The current menu item objects to which to add the class property information.
 */
function _wp_menu_item_classes_by_context( &$menu_items ) {
	global $wp_query, $wp_rewrite;

$queried_object    = $wp_query->get_queried_object();
	$queried_object_id = (int) $wp_query->queried_object_id;

$active_object               = '';
	$active_ancestor_item_ids    = array();
	$active_parent_item_ids      = array();
	$active_parent_object_ids    = array();
	$possible_taxonomy_ancestors = array();
	$possible_object_parents     = array();
	$home_page_id                = (int) get_option( 'page_for_posts' );

if ( $wp_query->is_singular && ! empty( $queried_object->post_type ) && ! is_post_type_hierarchical( $queried_object->post_type ) ) {
		foreach ( (array) get_object_taxonomies( $queried_object->post_type ) as $taxonomy ) {
			if ( is_taxonomy_hierarchical( $taxonomy ) ) {
				$term_hierarchy = _get_term_hierarchy( $taxonomy );
				$terms          = wp_get_object_terms( $queried_object_id, $taxonomy, array( 'fields' => 'ids' ) );
				if ( is_array( $terms ) ) {
					$possible_object_parents = array_merge( $possible_object_parents, $terms );
					$term_to_ancestor        = array();
					foreach ( (array) $term_hierarchy as $ancestor => $descendents ) {
						foreach ( (array) $descendents as $desc ) {
							$term_to_ancestor[ $desc ] = $ancestor;
						}
					}

foreach ( $terms as $desc ) {
						do {
							$possible_taxonomy_ancestors[ $taxonomy ][] = $desc;
							if ( isset( $term_to_ancestor[ $desc ] ) ) {
								$_desc = $term_to_ancestor[ $desc ];
								unset( $term_to_ancestor[ $desc ] );
								$desc = $_desc;
							} else {
								$desc = 0;
							}
						} while ( ! empty( $desc ) );
					}
				}
			}
		}
	} elseif ( ! empty( $queried_object->taxonomy ) && is_taxonomy_hierarchical( $queried_object->taxonomy ) ) {
		$term_hierarchy   = _get_term_hierarchy( $queried_object->taxonomy );
		$term_to_ancestor = array();
		foreach ( (array) $term_hierarchy as $ancestor => $descendents ) {
			foreach ( (array) $descendents as $desc ) {
				$term_to_ancestor[ $desc ] = $ancestor;
			}
		}
		$desc = $queried_object->term_id;
		do {
			$possible_taxonomy_ancestors[ $queried_object->taxonomy ][] = $desc;
			if ( isset( $term_to_ancestor[ $desc ] ) ) {
				$_desc = $term_to_ancestor[ $desc ];
				unset( $term_to_ancestor[ $desc ] );
				$desc = $_desc;
			} else {
				$desc = 0;
			}
		} while ( ! empty( $desc ) );
	}

$possible_object_parents = array_filter( $possible_object_parents );

$front_page_url         = home_url();
	$front_page_id          = (int) get_option( 'page_on_front' );
	$privacy_policy_page_id = (int) get_option( 'wp_page_for_privacy_policy' );

foreach ( (array) $menu_items as $key => $menu_item ) {

$menu_items[ $key ]->current = false;

$classes   = (array) $menu_item->classes;
		$classes[] = 'menu-item';
		$classes[] = 'menu-item-type-' . $menu_item->type;
		$classes[] = 'menu-item-object-' . $menu_item->object;

// This menu item is set as the 'Front Page'.
		if ( 'post_type' === $menu_item->type && $front_page_id === (int) $menu_item->object_id ) {
			$classes[] = 'menu-item-home';
		}

// This menu item is set as the 'Privacy Policy Page'.
		if ( 'post_type' === $menu_item->type && $privacy_policy_page_id === (int) $menu_item->object_id ) {
			$classes[] = 'menu-item-privacy-policy';
		}

// If the menu item corresponds to a taxonomy term for the currently queried non-hierarchical post object.
		if ( $wp_query->is_singular && 'taxonomy' === $menu_item->type
			&& in_array( (int) $menu_item->object_id, $possible_object_parents, true )
		) {
			$active_parent_object_ids[] = (int) $menu_item->object_id;
			$active_parent_item_ids[]   = (int) $menu_item->db_id;
			$active_object              = $queried_object->post_type;

// If the menu item corresponds to the currently queried post or taxonomy object.
		} elseif (
			(int) $menu_item->object_id === $queried_object_id
			&& (
				( ! empty( $home_page_id ) && 'post_type' === $menu_item->type
					&& $wp_query->is_home && $home_page_id === (int) $menu_item->object_id )
				|| ( 'post_type' === $menu_item->type && $wp_query->is_singular )
				|| ( 'taxonomy' === $menu_item->type
					&& ( $wp_query->is_category || $wp_query->is_tag || $wp_query->is_tax )
					&& $queried_object->taxonomy === $menu_item->object )
			)
		) {
			$classes[]                   = 'current-menu-item';
			$menu_items[ $key ]->current = true;
			$ancestor_id                 = (int) $menu_item->db_id;

while (
				( $ancestor_id = (int) get_post_meta( $ancestor_id, '_menu_item_menu_item_parent', true ) )
				&& ! in_array( $ancestor_id, $active_ancestor_item_ids, true )
			) {
				$active_ancestor_item_ids[] = $ancestor_id;
			}

if ( 'post_type' === $menu_item->type && 'page' === $menu_item->object ) {
				// Back compat classes for pages to match wp_page_menu().
				$classes[] = 'page_item';
				$classes[] = 'page-item-' . $menu_item->object_id;
				$classes[] = 'current_page_item';
			}

$active_parent_item_ids[]   = (int) $menu_item->menu_item_parent;
			$active_parent_object_ids[] = (int) $menu_item->post_parent;
			$active_object              = $menu_item->object;

// If the menu item corresponds to the currently queried post type archive.
		} elseif (
			'post_type_archive' === $menu_item->type
			&& is_post_type_archive( array( $menu_item->object ) )
		) {
			$classes[]                   = 'current-menu-item';
			$menu_items[ $key ]->current = true;
			$ancestor_id                 = (int) $menu_item->db_id;

$active_parent_item_ids[] = (int) $menu_item->menu_item_parent;

// If the menu item corresponds to the currently requested URL.
		} elseif ( 'custom' === $menu_item->object && isset( $_SERVER['HTTP_HOST'] ) ) {
			$_root_relative_current = untrailingslashit( $_SERVER['REQUEST_URI'] );

// If it's the customize page then it will strip the query var off the URL before entering the comparison block.
			if ( is_customize_preview() ) {
				$_root_relative_current = strtok( untrailingslashit( $_SERVER['REQUEST_URI'] ), '?' );
			}

$current_url        = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_root_relative_current );
			$raw_item_url       = strpos( $menu_item->url, '#' ) ? substr( $menu_item->url, 0, strpos( $menu_item->url, '#' ) ) : $menu_item->url;
			$item_url           = set_url_scheme( untrailingslashit( $raw_item_url ) );
			$_indexless_current = untrailingslashit( preg_replace( '/' . preg_quote( $wp_rewrite->index, '/' ) . '$/', '', $current_url ) );

$matches = array(
				$current_url,
				urldecode( $current_url ),
				$_indexless_current,
				urldecode( $_indexless_current ),
				$_root_relative_current,
				urldecode( $_root_relative_current ),
			);

if ( $raw_item_url && in_array( $item_url, $matches, true ) ) {
				$classes[]                   = 'current-menu-item';
				$menu_items[ $key ]->current = true;
				$ancestor_id                 = (int) $menu_item->db_id;

while (
					( $ancestor_id = (int) get_post_meta( $ancestor_id, '_menu_item_menu_item_parent', true ) )
					&& ! in_array( $ancestor_id, $active_ancestor_item_ids, true )
				) {
					$active_ancestor_item_ids[] = $ancestor_id;
				}

if ( in_array( home_url(), array( untrailingslashit( $current_url ), untrailingslashit( $_indexless_current ) ), true ) ) {
					// Back compat for home link to match wp_page_menu().
					$classes[] = 'current_page_item';
				}
				$active_parent_item_ids[]   = (int) $menu_item->menu_item_parent;
				$active_parent_object_ids[] = (int) $menu_item->post_parent;
				$active_object              = $menu_item->object;

// Give front page item the 'current-menu-item' class when extra query arguments are involved.
			} elseif ( $item_url === $front_page_url && is_front_page() ) {
				$classes[] = 'current-menu-item';
			}

if ( untrailingslashit( $item_url ) === home_url() ) {
				$classes[] = 'menu-item-home';
			}
		}

// Back-compat with wp_page_menu(): add "current_page_parent" to static home page link for any non-page query.
		if ( ! empty( $home_page_id ) && 'post_type' === $menu_item->type
			&& empty( $wp_query->is_page ) && $home_page_id === (int) $menu_item->object_id
		) {
			$classes[] = 'current_page_parent';
		}

$menu_items[ $key ]->classes = array_unique( $classes );
	}
	$active_ancestor_item_ids = array_filter( array_unique( $active_ancestor_item_ids ) );
	$active_parent_item_ids   = array_filter( array_unique( $active_parent_item_ids ) );
	$active_parent_object_ids = array_filter( array_unique( $active_parent_object_ids ) );

// Set parent's class.
	foreach ( (array) $menu_items as $key => $parent_item ) {
		$classes                                   = (array) $parent_item->classes;
		$menu_items[ $key ]->current_item_ancestor = false;
		$menu_items[ $key ]->current_item_parent   = false;

if (
			isset( $parent_item->type )
			&& (
				// Ancestral post object.
				(
					'post_type' === $parent_item->type
					&& ! empty( $queried_object->post_type )
					&& is_post_type_hierarchical( $queried_object->post_type )
					&& in_array( (int) $parent_item->object_id, $queried_object->ancestors, true )
					&& (int) $parent_item->object_id !== $queried_object->ID
				) ||

// Ancestral term.
				(
					'taxonomy' === $parent_item->type
					&& isset( $possible_taxonomy_ancestors[ $parent_item->object ] )
					&& in_array( (int) $parent_item->object_id, $possible_taxonomy_ancestors[ $parent_item->object ], true )
					&& (
						! isset( $queried_object->term_id ) ||
						(int) $parent_item->object_id !== $queried_object->term_id
					)
				)
			)
		) {
			if ( ! empty( $queried_object->taxonomy ) ) {
				$classes[] = 'current-' . $queried_object->taxonomy . '-ancestor';
			} else {
				$classes[] = 'current-' . $queried_object->post_type . '-ancestor';
			}
		}

if ( in_array( (int) $parent_item->db_id, $active_ancestor_item_ids, true ) ) {
			$classes[] = 'current-menu-ancestor';

$menu_items[ $key ]->current_item_ancestor = true;
		}
		if ( in_array( (int) $parent_item->db_id, $active_parent_item_ids, true ) ) {
			$classes[] = 'current-menu-parent';

$menu_items[ $key ]->current_item_parent = true;
		}
		if ( in_array( (int) $parent_item->object_id, $active_parent_object_ids, true ) ) {
			$classes[] = 'current-' . $active_object . '-parent';
		}

if ( 'post_type' === $parent_item->type && 'page' === $parent_item->object ) {
			// Back compat classes for pages to match wp_page_menu().
			if ( in_array( 'current-menu-parent', $classes, true ) ) {
				$classes[] = 'current_page_parent';
			}
			if ( in_array( 'current-menu-ancestor', $classes, true ) ) {
				$classes[] = 'current_page_ancestor';
			}
		}

$menu_items[ $key ]->classes = array_unique( $classes );
	}
}

/**
 * Retrieves the HTML list content for nav menu items.
 *
 * @uses Walker_Nav_Menu to create HTML list content.
 * @since 3.0.0
 *
 * @param array    $items The menu items, sorted by each menu item's menu order.
 * @param int      $depth Depth of the item in reference to parents.
 * @param stdClass $args  An object containing wp_nav_menu() arguments.
 * @return string The HTML list content for the menu items.
 */
function walk_nav_menu_tree( $items, $depth, $args ) {
	$walker = ( empty( $args->walker ) ) ? new Walker_Nav_Menu() : $args->walker;

return $walker->walk( $items, $depth, $args );
}

/**
 * Prevents a menu item ID from being used more than once.
 *
 * @since 3.0.1
 * @access private
 *
 * @param string $id
 * @param object $item
 * @return string
 */
function _nav_menu_item_id_use_once( $id, $item ) {
	static $_used_ids = array();

if ( in_array( $item->ID, $_used_ids, true ) ) {
		return '';
	}

$_used_ids[] = $item->ID;

return $id;
}

/**
 * Remove the `menu-item-has-children` class from bottom level menu items.
 *
 * This runs on the {@see 'nav_menu_css_class'} filter. The $args and $depth
 * parameters were added after the filter was originally introduced in
 * WordPress 3.0.0 so this needs to allow for cases in which the filter is
 * called without them.
 *
 * @see https://core.trac.wordpress.org/ticket/56926
 *
 * @since 6.2.0
 *
 * @param string[]       $classes   Array of the CSS classes that are applied to the menu item's `<li>` element.
 * @param WP_Post        $menu_item The current menu item object.
 * @param stdClass|false $args      An object of wp_nav_menu() arguments. Default false ($args unspecified when filter is called).
 * @param int|false      $depth     Depth of menu item. Default false ($depth unspecified when filter is called).
 * @return string[] Modified nav menu classes.
 */
function wp_nav_menu_remove_menu_item_has_children_class( $classes, $menu_item, $args = false, $depth = false ) {
	/*
	 * Account for the filter being called without the $args or $depth parameters.
	 *
	 * This occurs when a theme uses a custom walker calling the `nav_menu_css_class`
	 * filter using the legacy formats prior to the introduction of the $args and
	 * $depth parameters.
	 *
	 * As both of these parameters are required for this function to determine
	 * both the current and maximum depth of the menu tree, the function does not
	 * attempt to remove the `menu-item-has-children` class if these parameters
	 * are not set.
	 */
	if ( false === $depth || false === $args ) {
		return $classes;
	}

// Max-depth is 1-based.
	$max_depth = isset( $args->depth ) ? (int) $args->depth : 0;
	// Depth is 0-based so needs to be increased by one.
	$depth = $depth + 1;

// Complete menu tree is displayed.
	if ( 0 === $max_depth ) {
		return $classes;
	}

/*
	 * Remove the `menu-item-has-children` class from bottom level menu items.
	 * -1 is used to display all menu items in one level so the class should
	 * be removed from all menu items.
	 */
	if ( -1 === $max_depth || $depth >= $max_depth ) {
		$classes = array_diff( $classes, array( 'menu-item-has-children' ) );
	}

return $classes;
}

Nama File / Folder	Size	Action
ID3	--	NONE
IXR	--	NONE
PHPMailer	--	NONE
Requests	--	NONE
SimplePie	--	NONE
Text	--	NONE
assets	--	NONE
block-bindings	--	NONE
block-patterns	--	NONE
block-supports	--	NONE
blocks	--	NONE
certificates	--	NONE
css	--	NONE
customize	--	NONE
fonts	--	NONE
html-api	--	NONE
images	--	NONE
interactivity-api	--	NONE
js	--	NONE
l10n	--	NONE
php-compat	--	NONE
pomo	--	NONE
rest-api	--	NONE
sitemaps	--	NONE
sodium_compat	--	NONE
style-engine	--	NONE
theme-compat	--	NONE
widgets	--	NONE
.htaccess	0.192KB	Edit File Delete File Rename
admin-bar.php	36.236KB	Edit File Delete File Rename
atomlib.php	11.795KB	Edit File Delete File Rename
bookmark.php	15.065KB	Edit File Delete File Rename
cache.php	13.158KB	Edit File Delete File Rename
canonical.php	33.714KB	Edit File Delete File Rename
capabilities.php	41.717KB	Edit File Delete File Rename
class-IXR.php	2.555KB	Edit File Delete File Rename
class-feed.php	0.526KB	Edit File Delete File Rename
class-phpass.php	6.612KB	Edit File Delete File Rename
class-phpmailer.php	0.648KB	Edit File Delete File Rename
class-pop3.php	20.626KB	Edit File Delete File Rename
class-requests.php	2.185KB	Edit File Delete File Rename
class-smtp.php	0.446KB	Edit File Delete File Rename
class-snoopy.php	36.831KB	Edit File Delete File Rename
class-walker-category.php	8.278KB	Edit File Delete File Rename
class-walker-nav-menu.php	11.762KB	Edit File Delete File Rename
class-walker-page-dropdown.php	2.646KB	Edit File Delete File Rename
class-wp-admin-bar.php	17.455KB	Edit File Delete File Rename
class-wp-block-pattern-categories-registry.php	5.245KB	Edit File Delete File Rename
class-wp-block-template.php	1.985KB	Edit File Delete File Rename
class-wp-block-type-registry.php	4.896KB	Edit File Delete File Rename
class-wp-block-type.php	16.86KB	Edit File Delete File Rename
class-wp-classic-to-block-menu-converter.php	3.992KB	Edit File Delete File Rename
class-wp-comment.php	9.216KB	Edit File Delete File Rename
class-wp-network.php	12.008KB	Edit File Delete File Rename
class-wp-paused-extensions-storage.php	4.991KB	Edit File Delete File Rename
class-wp-phpmailer.php	3.713KB	Edit File Delete File Rename
class-wp-post-type.php	29.961KB	Edit File Delete File Rename
class-wp-recovery-mode-cookie-service.php	6.716KB	Edit File Delete File Rename
class-wp-recovery-mode-key-service.php	4.77KB	Edit File Delete File Rename
class-wp-recovery-mode-link-service.php	3.382KB	Edit File Delete File Rename
class-wp-recovery-mode.php	11.185KB	Edit File Delete File Rename
class-wp-simplepie-sanitize-kses.php	1.865KB	Edit File Delete File Rename
class-wp-styles.php	10.752KB	Edit File Delete File Rename
class-wp-taxonomy.php	18.124KB	Edit File Delete File Rename
class-wp-term-query.php	39.911KB	Edit File Delete File Rename
class-wp-theme.php	64.268KB	Edit File Delete File Rename
class-wp-walker.php	13.01KB	Edit File Delete File Rename
class-wpdb.php	115.512KB	Edit File Delete File Rename
comment.php	128.464KB	Edit File Delete File Rename
compat.php	15.992KB	Edit File Delete File Rename
cron.php	41.658KB	Edit File Delete File Rename
default-filters.php	35.837KB	Edit File Delete File Rename
deprecated.php	187.073KB	Edit File Delete File Rename
embed.php	37.277KB	Edit File Delete File Rename
error-protection.php	4.024KB	Edit File Delete File Rename
feed-atom-comments.php	5.375KB	Edit File Delete File Rename
feed-atom.php	3.048KB	Edit File Delete File Rename
fonts.php	9.522KB	Edit File Delete File Rename
formatting.php	334.884KB	Edit File Delete File Rename
general-template.php	168.455KB	Edit File Delete File Rename
global-styles-and-settings.php	20.763KB	Edit File Delete File Rename
http.php	24.719KB	Edit File Delete File Rename
l10n.php	66.924KB	Edit File Delete File Rename
locale.php	0.158KB	Edit File Delete File Rename
ms-blogs.php	25.239KB	Edit File Delete File Rename
ms-default-filters.php	6.48KB	Edit File Delete File Rename
ms-deprecated.php	21.249KB	Edit File Delete File Rename
ms-load.php	19.417KB	Edit File Delete File Rename
ms-network.php	3.693KB	Edit File Delete File Rename
ms-settings.php	4.099KB	Edit File Delete File Rename
nav-menu-template.php	25.381KB	Edit File Delete File Rename
nav-menu.php	43.333KB	Edit File Delete File Rename
pluggable-deprecated.php	6.176KB	Edit File Delete File Rename
pluggable.php	119.824KB	Edit File Delete File Rename
post-thumbnail-template.php	10.624KB	Edit File Delete File Rename
query.php	36.167KB	Edit File Delete File Rename
revision.php	30.021KB	Edit File Delete File Rename
rewrite.php	19.083KB	Edit File Delete File Rename
session.php	0.252KB	Edit File Delete File Rename
spl-autoload-compat.php	0.431KB	Edit File Delete File Rename
style-engine.php	7.386KB	Edit File Delete File Rename
taxonomy.php	172.097KB	Edit File Delete File Rename
theme-templates.php	6.092KB	Edit File Delete File Rename
theme.php	131.155KB	Edit File Delete File Rename
update.php	36.624KB	Edit File Delete File Rename
user.php	171.702KB	Edit File Delete File Rename
vars.php	6.408KB	Edit File Delete File Rename
wp-db.php	0.435KB	Edit File Delete File Rename