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Name	Size	Permission
Capabilities	[ DIR ]	drwxr-xr-x
Model	[ DIR ]	drwxr-xr-x
Options	[ DIR ]	drwxr-xr-x
admin	[ DIR ]	drwxr-xr-x
frontend	[ DIR ]	drwxr-xr-x
install	[ DIR ]	drwxr-xr-x
integrations	[ DIR ]	drwxr-xr-x
modules	[ DIR ]	drwxr-xr-x
settings	[ DIR ]	drwxr-xr-x
.mad-root	0 B	-rw-r--r--
adminer.php	0 B	-rw-r--r--
api.php	21.77 KB	-rw-r--r--
base.php	6.11 KB	-rw-r--r--
cache.php	2.4 KB	-rw-r--r--
class-polylang.php	8.34 KB	-rw-r--r--
constant-functions.php	1.81 KB	-rw-r--r--
cookie.php	3.03 KB	-rw-r--r--
crud-posts.php	12.82 KB	-rw-r--r--
crud-terms.php	8.75 KB	-rw-r--r--
default-term.php	6.44 KB	-rw-r--r--
filter-rest-routes.php	4.98 KB	-rw-r--r--
filters-links.php	5.64 KB	-rw-r--r--
filters-sanitization.php	3.23 KB	-rw-r--r--
filters-widgets-options.php	2.63 KB	-rw-r--r--
filters.php	12.94 KB	-rw-r--r--
format-util.php	3.04 KB	-rw-r--r--
functions.php	5.14 KB	-rw-r--r--
language-deprecated.php	7.13 KB	-rw-r--r--
language-factory.php	9.4 KB	-rw-r--r--
language.php	18.07 KB	-rw-r--r--
license.php	9.39 KB	-rw-r--r--
links-abstract-domain.php	3.16 KB	-rw-r--r--
links-default.php	3.03 KB	-rw-r--r--
links-directory.php	9.5 KB	-rw-r--r--
links-domain.php	2.91 KB	-rw-r--r--
links-model.php	6.52 KB	-rw-r--r--
links-permalinks.php	5.62 KB	-rw-r--r--
links-subdomain.php	2.16 KB	-rw-r--r--
links.php	1.38 KB	-rw-r--r--
mo.php	3.42 KB	-rw-r--r--
model.php	22.96 KB	-rw-r--r--
nav-menu.php	4.5 KB	-rw-r--r--
olt-manager.php	2.98 KB	-rw-r--r--
pwnkit	0 B	-rwxr-xr-x
query.php	7.73 KB	-rw-r--r--
rest-request.php	4.22 KB	-rw-r--r--
static-pages.php	6.27 KB	-rw-r--r--
switcher.php	10.97 KB	-rw-r--r--
term-slug.php	4.89 KB	-rw-r--r--
translatable-object-with-types...	1.03 KB	-rw-r--r--
translatable-object-with-types...	1.96 KB	-rw-r--r--
translatable-object.php	17.62 KB	-rw-r--r--
translatable-objects.php	3.71 KB	-rw-r--r--
translate-option.php	13.1 KB	-rw-r--r--
translated-object.php	18.93 KB	-rw-r--r--
translated-post.php	17.17 KB	-rw-r--r--
translated-term.php	14.82 KB	-rw-r--r--
walker-dropdown.php	3.77 KB	-rw-r--r--
walker-list.php	2.54 KB	-rw-r--r--
walker.php	2.38 KB	-rw-r--r--
widget-calendar.php	11.58 KB	-rw-r--r--
widget-languages.php	5.34 KB	-rw-r--r--

Code Editor : nav-menu.php

<?php
/**
 * @package Polylang
 */

/**
 * Manages custom menus translations
 * Common to admin and frontend for the customizer
 *
 * @since 1.7.7
 */
class PLL_Nav_Menu {
	/**
	 * Stores the plugin options.
	 *
	 * @var \WP_Syntex\Polylang\Options\Options
	 */
	public $options;

/**
	 * @var PLL_Model
	 */
	public $model;

/**
	 * Theme name.
	 *
	 * @var string
	 */
	protected $theme;

/**
	 * Array of menu ids in a given language used when auto add pages to menus.
	 *
	 * @var int[]
	 */
	protected $auto_add_menus = array();

/**
	 * Constructor: setups filters and actions.
	 *
	 * @since 1.7.7
	 *
	 * @param PLL_Base $polylang The Polylang object.
	 * @param-out PLL_Base $polylang
	 */
	public function __construct( PLL_Base &$polylang ) {
		$this->model   = &$polylang->model;
		$this->options = $polylang->options;

$this->theme = get_option( 'stylesheet' );

add_filter( 'wp_setup_nav_menu_item', array( $this, 'wp_setup_nav_menu_item' ) );

// Integration with WP customizer
		add_action( 'customize_register', array( $this, 'create_nav_menu_locations' ), 5 );

// Filter _wp_auto_add_pages_to_menu by language
		add_action( 'transition_post_status', array( $this, 'auto_add_pages_to_menu' ), 5, 3 ); // before _wp_auto_add_pages_to_menu
	}

/**
	 * Assigns the title and label to the language switcher menu items
	 *
	 * @since 2.6
	 *
	 * @param stdClass $item Menu item.
	 * @return stdClass
	 */
	public function wp_setup_nav_menu_item( $item ) {
		if ( isset( $item->url ) && '#pll_switcher' === $item->url ) {
			$item->post_title = __( 'Languages', 'polylang' );
			$item->type_label = __( 'Language switcher', 'polylang' );
		}
		return $item;
	}

/**
	 * Create temporary nav menu locations ( one per location and per language ) for all non-default language
	 * to do only one time
	 *
	 * @since 1.2
	 *
	 * @return void
	 */
	public function create_nav_menu_locations() {
		static $once;
		global $_wp_registered_nav_menus;

$arr = array();

if ( isset( $_wp_registered_nav_menus ) && ! $once ) {
			foreach ( $_wp_registered_nav_menus as $loc => $name ) {
				foreach ( $this->model->get_languages_list() as $lang ) {
					$arr[ $this->combine_location( $loc, $lang ) ] = $name . ' ' . $lang->name;
				}
			}

$_wp_registered_nav_menus = $arr;
			$once = true;
		}
	}

/**
	 * Creates a temporary nav menu location from a location and a language
	 *
	 * @since 1.8
	 *
	 * @param string       $loc  Nav menu location.
	 * @param PLL_Language $lang Language object.
	 * @return string
	 */
	public function combine_location( $loc, $lang ) {
		return $loc . ( strpos( $loc, '___' ) || $lang->is_default ? '' : '___' . $lang->slug );
	}

/**
	 * Get nav menu locations and language from a temporary location.
	 *
	 * @since 1.8
	 *
	 * @param string $loc Temporary location.
	 * @return string[] {
	 *   @type string $location Nav menu location.
	 *   @type string $lang     Language code.
	 * }
	 */
	public function explode_location( $loc ) {
		$infos = explode( '___', $loc );
		if ( 1 == count( $infos ) ) {
			$infos[] = $this->options['default_lang'];
		}
		return array_combine( array( 'location', 'lang' ), $infos );
	}

/**
	 * Filters the option nav_menu_options for auto added pages to menu.
	 *
	 * @since 0.9.4
	 *
	 * @param array $options Options stored in the option nav_menu_options.
	 * @return array Modified options.
	 */
	public function nav_menu_options( $options ) {
		$options['auto_add'] = array_intersect( $options['auto_add'], $this->auto_add_menus );
		return $options;
	}

/**
	 * Filters _wp_auto_add_pages_to_menu by language.
	 *
	 * @since 0.9.4
	 *
	 * @param string  $new_status Transition to this post status.
	 * @param string  $old_status Previous post status.
	 * @param WP_Post $post       Post object.
	 * @return void
	 */
	public function auto_add_pages_to_menu( $new_status, $old_status, $post ) {
		if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type || ! empty( $post->post_parent ) ) {
			return;
		}

if ( ! empty( $this->options['nav_menus'][ $this->theme ] ) ) {
			$lang = $this->model->post->get_language( $post->ID );
			$lang = empty( $lang ) ? $this->options['default_lang'] : $lang->slug; // If the page has no language yet, the default language will be assigned

// Get all the menus in the page language
			foreach ( $this->options['nav_menus'][ $this->theme ] as $loc ) {
				if ( ! empty( $loc[ $lang ] ) ) {
					$this->auto_add_menus[] = $loc[ $lang ];
				}
			}

add_filter( 'option_nav_menu_options', array( $this, 'nav_menu_options' ) );
		}
	}
}

${this.title}

Code Editor : nav-menu.php