646 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			646 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
<?php
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/**
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 * Nav Menu API: Template functions
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 *
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 * @package WordPress
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 * @subpackage Nav_Menus
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 * @since 3.0.0
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 */
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/** Walker_Nav_Menu class */
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require_once ABSPATH . WPINC . '/class-walker-nav-menu.php';
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/**
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 * Displays a navigation menu.
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 *
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 * @since 3.0.0
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 * @since 4.7.0 Added the `item_spacing` argument.
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 * @since 5.5.0 Added the `container_aria_label` argument.
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 *
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 * @param array $args {
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 *     Optional. Array of nav menu arguments.
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 *
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 *     @type int|string|WP_Term $menu                 Desired menu. Accepts a menu ID, slug, name, or object.
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 *                                                    Default empty.
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 *     @type string             $menu_class           CSS class to use for the ul element which forms the menu.
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 *                                                    Default 'menu'.
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 *     @type string             $menu_id              The ID that is applied to the ul element which forms the menu.
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 *                                                    Default is the menu slug, incremented.
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 *     @type string             $container            Whether to wrap the ul, and what to wrap it with.
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 *                                                    Default 'div'.
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 *     @type string             $container_class      Class that is applied to the container.
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 *                                                    Default 'menu-{menu slug}-container'.
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 *     @type string             $container_id         The ID that is applied to the container. Default empty.
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 *     @type string             $container_aria_label The aria-label attribute that is applied to the container
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 *                                                    when it's a nav element. Default empty.
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 *     @type callable|false     $fallback_cb          If the menu doesn't exist, a callback function will fire.
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 *                                                    Default is 'wp_page_menu'. Set to false for no fallback.
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 *     @type string             $before               Text before the link markup. Default empty.
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 *     @type string             $after                Text after the link markup. Default empty.
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 *     @type string             $link_before          Text before the link text. Default empty.
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 *     @type string             $link_after           Text after the link text. Default empty.
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 *     @type bool               $echo                 Whether to echo the menu or return it. Default true.
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 *     @type int                $depth                How many levels of the hierarchy are to be included.
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 *                                                    0 means all. Default 0.
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 *                                                    Default 0.
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 *     @type object             $walker               Instance of a custom walker class. Default empty.
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 *     @type string             $theme_location       Theme location to be used. Must be registered with
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 *                                                    register_nav_menu() in order to be selectable by the user.
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 *     @type string             $items_wrap           How the list items should be wrapped. Uses printf() format with
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 *                                                    numbered placeholders. Default is a ul with an id and class.
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 *     @type string             $item_spacing         Whether to preserve whitespace within the menu's HTML.
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 *                                                    Accepts 'preserve' or 'discard'. Default 'preserve'.
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 * }
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 * @return void|string|false Void if 'echo' argument is true, menu output if 'echo' is false.
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 *                           False if there are no items or no menu was found.
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 */
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function wp_nav_menu( $args = array() ) {
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	static $menu_id_slugs = array();
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	$defaults = array(
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		'menu'                 => '',
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		'container'            => 'div',
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		'container_class'      => '',
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		'container_id'         => '',
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		'container_aria_label' => '',
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		'menu_class'           => 'menu',
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		'menu_id'              => '',
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		'echo'                 => true,
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		'fallback_cb'          => 'wp_page_menu',
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		'before'               => '',
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		'after'                => '',
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		'link_before'          => '',
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		'link_after'           => '',
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		'items_wrap'           => '<ul id="%1$s" class="%2$s">%3$s</ul>',
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		'item_spacing'         => 'preserve',
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		'depth'                => 0,
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		'walker'               => '',
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		'theme_location'       => '',
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	);
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	$args = wp_parse_args( $args, $defaults );
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	if ( ! in_array( $args['item_spacing'], array( 'preserve', 'discard' ), true ) ) {
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		// Invalid value, fall back to default.
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		$args['item_spacing'] = $defaults['item_spacing'];
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	}
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	/**
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	 * Filters the arguments used to display a navigation menu.
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	 *
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	 * @since 3.0.0
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	 *
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	 * @see wp_nav_menu()
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	 *
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	 * @param array $args Array of wp_nav_menu() arguments.
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	 */
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	$args = apply_filters( 'wp_nav_menu_args', $args );
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	$args = (object) $args;
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	/**
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	 * Filters whether to short-circuit the wp_nav_menu() output.
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	 *
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	 * Returning a non-null value from the filter will short-circuit wp_nav_menu(),
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	 * echoing that value if $args->echo is true, returning that value otherwise.
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	 *
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	 * @since 3.9.0
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	 *
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	 * @see wp_nav_menu()
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	 *
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	 * @param string|null $output Nav menu output to short-circuit with. Default null.
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	 * @param stdClass    $args   An object containing wp_nav_menu() arguments.
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	 */
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	$nav_menu = apply_filters( 'pre_wp_nav_menu', null, $args );
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	if ( null !== $nav_menu ) {
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		if ( $args->echo ) {
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			echo $nav_menu;
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			return;
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		}
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		return $nav_menu;
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	}
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	// Get the nav menu based on the requested menu.
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	$menu = wp_get_nav_menu_object( $args->menu );
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	// Get the nav menu based on the theme_location.
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	$locations = get_nav_menu_locations();
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	if ( ! $menu && $args->theme_location && $locations && isset( $locations[ $args->theme_location ] ) ) {
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		$menu = wp_get_nav_menu_object( $locations[ $args->theme_location ] );
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	}
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	// Get the first menu that has items if we still can't find a menu.
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	if ( ! $menu && ! $args->theme_location ) {
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		$menus = wp_get_nav_menus();
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		foreach ( $menus as $menu_maybe ) {
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			$menu_items = wp_get_nav_menu_items( $menu_maybe->term_id, array( 'update_post_term_cache' => false ) );
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			if ( $menu_items ) {
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				$menu = $menu_maybe;
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				break;
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			}
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		}
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	}
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	if ( empty( $args->menu ) ) {
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		$args->menu = $menu;
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	}
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	// If the menu exists, get its items.
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	if ( $menu && ! is_wp_error( $menu ) && ! isset( $menu_items ) ) {
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		$menu_items = wp_get_nav_menu_items( $menu->term_id, array( 'update_post_term_cache' => false ) );
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	}
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	/*
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	 * If no menu was found:
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	 *  - Fall back (if one was specified), or bail.
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	 *
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	 * If no menu items were found:
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	 *  - Fall back, but only if no theme location was specified.
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	 *  - Otherwise, bail.
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	 */
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	if ( ( ! $menu || is_wp_error( $menu ) || ( isset( $menu_items ) && empty( $menu_items ) && ! $args->theme_location ) )
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		&& isset( $args->fallback_cb ) && $args->fallback_cb && is_callable( $args->fallback_cb ) ) {
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			return call_user_func( $args->fallback_cb, (array) $args );
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	}
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	if ( ! $menu || is_wp_error( $menu ) ) {
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		return false;
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	}
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	$nav_menu = '';
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	$items    = '';
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	$show_container = false;
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	if ( $args->container ) {
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		/**
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		 * Filters the list of HTML tags that are valid for use as menu containers.
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		 *
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		 * @since 3.0.0
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		 *
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		 * @param string[] $tags The acceptable HTML tags for use as menu containers.
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		 *                       Default is array containing 'div' and 'nav'.
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		 */
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		$allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );
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		if ( is_string( $args->container ) && in_array( $args->container, $allowed_tags, true ) ) {
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			$show_container = true;
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			$class          = $args->container_class ? ' class="' . esc_attr( $args->container_class ) . '"' : ' class="menu-' . $menu->slug . '-container"';
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			$id             = $args->container_id ? ' id="' . esc_attr( $args->container_id ) . '"' : '';
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			$aria_label     = ( 'nav' === $args->container && $args->container_aria_label ) ? ' aria-label="' . esc_attr( $args->container_aria_label ) . '"' : '';
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			$nav_menu      .= '<' . $args->container . $id . $class . $aria_label . '>';
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		}
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	}
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	// Set up the $menu_item variables.
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	_wp_menu_item_classes_by_context( $menu_items );
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	$sorted_menu_items        = array();
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	$menu_items_tree          = array();
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	$menu_items_with_children = array();
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	foreach ( (array) $menu_items as $menu_item ) {
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		$sorted_menu_items[ $menu_item->menu_order ] = $menu_item;
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		$menu_items_tree[ $menu_item->ID ]           = $menu_item->menu_item_parent;
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		if ( $menu_item->menu_item_parent ) {
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			$menu_items_with_children[ $menu_item->menu_item_parent ] = 1;
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		}
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	}
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	// Calculate the depth of each menu item with children.
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	foreach ( $menu_items_with_children as $menu_item_key => &$menu_item_depth ) {
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		$menu_item_parent = $menu_items_tree[ $menu_item_key ];
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		while ( $menu_item_parent ) {
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			$menu_item_depth  = $menu_item_depth + 1;
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			$menu_item_parent = $menu_items_tree[ $menu_item_parent ];
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		}
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	}
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	// Add the menu-item-has-children class where applicable.
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	if ( $menu_items_with_children ) {
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		foreach ( $sorted_menu_items as &$menu_item ) {
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			if (
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				isset( $menu_items_with_children[ $menu_item->ID ] ) &&
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				( $args->depth <= 0 || $menu_items_with_children[ $menu_item->ID ] < $args->depth )
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			) {
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				$menu_item->classes[] = 'menu-item-has-children';
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			}
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		}
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	}
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	unset( $menu_items_tree, $menu_items_with_children, $menu_items, $menu_item );
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	/**
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	 * Filters the sorted list of menu item objects before generating the menu's HTML.
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	 *
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	 * @since 3.1.0
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	 *
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	 * @param array    $sorted_menu_items The menu items, sorted by each menu item's menu order.
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	 * @param stdClass $args              An object containing wp_nav_menu() arguments.
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	 */
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	$sorted_menu_items = apply_filters( 'wp_nav_menu_objects', $sorted_menu_items, $args );
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	$items .= walk_nav_menu_tree( $sorted_menu_items, $args->depth, $args );
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	unset( $sorted_menu_items );
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	// Attributes.
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	if ( ! empty( $args->menu_id ) ) {
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		$wrap_id = $args->menu_id;
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	} else {
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		$wrap_id = 'menu-' . $menu->slug;
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		while ( in_array( $wrap_id, $menu_id_slugs, true ) ) {
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			if ( preg_match( '#-(\d+)$#', $wrap_id, $matches ) ) {
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				$wrap_id = preg_replace( '#-(\d+)$#', '-' . ++$matches[1], $wrap_id );
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			} else {
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				$wrap_id = $wrap_id . '-1';
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			}
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		}
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	}
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	$menu_id_slugs[] = $wrap_id;
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	$wrap_class = $args->menu_class ? $args->menu_class : '';
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	/**
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	 * Filters the HTML list content for navigation menus.
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	 *
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	 * @since 3.0.0
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	 *
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	 * @see wp_nav_menu()
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	 *
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	 * @param string   $items The HTML list content for the menu items.
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	 * @param stdClass $args  An object containing wp_nav_menu() arguments.
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	 */
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	$items = apply_filters( 'wp_nav_menu_items', $items, $args );
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	/**
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	 * Filters the HTML list content for a specific navigation menu.
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	 *
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	 * @since 3.0.0
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	 *
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	 * @see wp_nav_menu()
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	 *
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	 * @param string   $items The HTML list content for the menu items.
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	 * @param stdClass $args  An object containing wp_nav_menu() arguments.
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	 */
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	$items = apply_filters( "wp_nav_menu_{$menu->slug}_items", $items, $args );
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	// Don't print any markup if there are no items at this point.
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	if ( empty( $items ) ) {
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		return false;
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	}
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	$nav_menu .= sprintf( $args->items_wrap, esc_attr( $wrap_id ), esc_attr( $wrap_class ), $items );
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	unset( $items );
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	if ( $show_container ) {
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		$nav_menu .= '</' . $args->container . '>';
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	}
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	/**
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	 * Filters the HTML content for navigation menus.
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	 *
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	 * @since 3.0.0
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	 *
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	 * @see wp_nav_menu()
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	 *
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	 * @param string   $nav_menu The HTML content for the navigation menu.
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	 * @param stdClass $args     An object containing wp_nav_menu() arguments.
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	 */
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	$nav_menu = apply_filters( 'wp_nav_menu', $nav_menu, $args );
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	if ( $args->echo ) {
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		echo $nav_menu;
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	} else {
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		return $nav_menu;
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	}
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}
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/**
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 * Adds the class property classes for the current context, if applicable.
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 *
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 * @access private
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 * @since 3.0.0
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 *
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 * @global WP_Query   $wp_query   WordPress Query object.
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 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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 *
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 * @param array $menu_items The current menu item objects to which to add the class property information.
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 */
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function _wp_menu_item_classes_by_context( &$menu_items ) {
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	global $wp_query, $wp_rewrite;
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	$queried_object    = $wp_query->get_queried_object();
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	$queried_object_id = (int) $wp_query->queried_object_id;
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	$active_object               = '';
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	$active_ancestor_item_ids    = array();
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	$active_parent_item_ids      = array();
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	$active_parent_object_ids    = array();
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	$possible_taxonomy_ancestors = array();
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	$possible_object_parents     = array();
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	$home_page_id                = (int) get_option( 'page_for_posts' );
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	if ( $wp_query->is_singular && ! empty( $queried_object->post_type ) && ! is_post_type_hierarchical( $queried_object->post_type ) ) {
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		foreach ( (array) get_object_taxonomies( $queried_object->post_type ) as $taxonomy ) {
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			if ( is_taxonomy_hierarchical( $taxonomy ) ) {
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				$term_hierarchy = _get_term_hierarchy( $taxonomy );
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				$terms          = wp_get_object_terms( $queried_object_id, $taxonomy, array( 'fields' => 'ids' ) );
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				if ( is_array( $terms ) ) {
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					$possible_object_parents = array_merge( $possible_object_parents, $terms );
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					$term_to_ancestor        = array();
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					foreach ( (array) $term_hierarchy as $anc => $descs ) {
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						foreach ( (array) $descs as $desc ) {
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							$term_to_ancestor[ $desc ] = $anc;
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						}
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					}
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					foreach ( $terms as $desc ) {
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						do {
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							$possible_taxonomy_ancestors[ $taxonomy ][] = $desc;
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							if ( isset( $term_to_ancestor[ $desc ] ) ) {
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								$_desc = $term_to_ancestor[ $desc ];
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								unset( $term_to_ancestor[ $desc ] );
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								$desc = $_desc;
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							} else {
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								$desc = 0;
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							}
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						} while ( ! empty( $desc ) );
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					}
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				}
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			}
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		}
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	} elseif ( ! empty( $queried_object->taxonomy ) && is_taxonomy_hierarchical( $queried_object->taxonomy ) ) {
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		$term_hierarchy   = _get_term_hierarchy( $queried_object->taxonomy );
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		$term_to_ancestor = array();
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		foreach ( (array) $term_hierarchy as $anc => $descs ) {
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			foreach ( (array) $descs as $desc ) {
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				$term_to_ancestor[ $desc ] = $anc;
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			}
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		}
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		$desc = $queried_object->term_id;
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		do {
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			$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 (
 | 
						|
			$menu_item->object_id == $queried_object_id
 | 
						|
			&& (
 | 
						|
				( ! empty( $home_page_id ) && 'post_type' === $menu_item->type
 | 
						|
					&& $wp_query->is_home && $home_page_id == $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;
 | 
						|
			$_anc_id                     = (int) $menu_item->db_id;
 | 
						|
 | 
						|
			while (
 | 
						|
				( $_anc_id = (int) get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) )
 | 
						|
				&& ! in_array( $_anc_id, $active_ancestor_item_ids, true )
 | 
						|
			) {
 | 
						|
				$active_ancestor_item_ids[] = $_anc_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;
 | 
						|
			$_anc_id                     = (int) $menu_item->db_id;
 | 
						|
 | 
						|
			while (
 | 
						|
				( $_anc_id = (int) get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) )
 | 
						|
				&& ! in_array( $_anc_id, $active_ancestor_item_ids, true )
 | 
						|
			) {
 | 
						|
				$active_ancestor_item_ids[] = $_anc_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;
 | 
						|
				$_anc_id                     = (int) $menu_item->db_id;
 | 
						|
 | 
						|
				while (
 | 
						|
					( $_anc_id = (int) get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) )
 | 
						|
					&& ! in_array( $_anc_id, $active_ancestor_item_ids, true )
 | 
						|
				) {
 | 
						|
					$active_ancestor_item_ids[] = $_anc_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 == $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 )
 | 
						|
					&& $parent_item->object != $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 ) ||
 | 
						|
						$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;
 | 
						|
}
 |