Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。 theme, array( $this, 'pre_update_option_theme_mods' ) ); add_action( 'delete_nav_menu', array( $this, 'delete_nav_menu' ) ); $this->create_nav_menu_locations(); } /** * Adds the language switcher metabox. * * @since 3.7.7 * * @return void */ public function add_meta_box() { // FIXME not displayed if Polylang is activated before the first time the user goes to nav menus http://core.trac.wordpress.org/ticket/16828 add_meta_box( 'pll_lang_switch_box', __( 'Language switcher', 'polylang' ), array( $this, 'lang_switch' ), 'nav-menus', 'side', 'high' ); } /** * Language switcher metabox * The checkbox and all hidden fields are important * Thanks to John Morris for his very interesting post http://www.johnmorrisonline.com/how-to-add-a-fully-functional-custom-meta-box-to-wordpress-navigation-menus/ * * @since 1.1 * * @return void */ public function lang_switch() { global $_nav_menu_placeholder, $nav_menu_selected_id; $_nav_menu_placeholder = 0 > $_nav_menu_placeholder ? $_nav_menu_placeholder - 1 : -1; ?>

class="button-secondary submit-add-to-menu right" value="" name="add-post-type-menu-item" id="submit-posttype-lang-switch">

base ) { return; } $suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min'; wp_enqueue_script( 'pll_nav_menu', plugins_url( "/js/build/nav-menu{$suffix}.js", POLYLANG_ROOT_FILE ), array(), POLYLANG_VERSION ); $data = array( 'strings' => PLL_Switcher::get_switcher_options( 'menu', 'string' ), // The strings for the options 'title' => __( 'Languages', 'polylang' ), // The title 'val' => array(), ); // Get all language switcher menu items $items = get_posts( array( 'numberposts' => -1, 'nopaging' => true, 'post_type' => 'nav_menu_item', 'fields' => 'ids', 'meta_key' => '_pll_menu_item', ) ); // The options values for the language switcher foreach ( $items as $item ) { $data['val'][ $item ] = get_post_meta( $item, '_pll_menu_item', true ); } // Send all these data to javascript wp_localize_script( 'pll_nav_menu', 'pll_data', $data ); } /** * Save our menu item options. * * @since 1.1 * * @param int $menu_id ID of the updated menu. * @param int $menu_item_db_id ID of the updated menu item. * @return void */ public function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0 ) { if ( ! current_user_can( 'edit_theme_options' ) ) { return; } if ( ! isset( $_REQUEST['update-nav-menu-nonce'] ) || ! wp_verify_nonce( $_REQUEST['update-nav-menu-nonce'], 'update-nav_menu' ) ) { return; } if ( empty( $_POST['menu-item-url'] ) || ! is_array( $_POST['menu-item-url'] ) || empty( $_POST['menu-item-url'][ $menu_item_db_id ] ) || '#pll_switcher' !== $_POST['menu-item-url'][ $menu_item_db_id ] ) { return; } $options = array( 'hide_if_no_translation' => 0, 'hide_current' => 0, 'force_home' => 0, 'show_flags' => 0, 'show_names' => 1, 'dropdown' => 0 ); // Default values. // Our jQuery form has not been displayed. if ( empty( $_POST['menu-item-pll-detect'][ $menu_item_db_id ] ) ) { if ( ! get_post_meta( $menu_item_db_id, '_pll_menu_item', true ) ) { // Our options were never saved. update_post_meta( $menu_item_db_id, '_pll_menu_item', $options ); } } else { foreach ( array_keys( $options ) as $opt ) { $options[ $opt ] = empty( $_POST[ 'menu-item-' . $opt ][ $menu_item_db_id ] ) ? 0 : 1; } update_post_meta( $menu_item_db_id, '_pll_menu_item', $options ); // Allow us to easily identify our nav menu item. } } /** * Assigns menu languages and translations based on (temporary) locations. * * @since 1.8 * * @param array $locations Nav menu locations. * @return array */ public function update_nav_menu_locations( $locations ) { // Extract language and menu from locations. $nav_menus = $this->options->get( 'nav_menus' ); foreach ( $locations as $loc => $menu ) { $infos = $this->explode_location( $loc ); $nav_menus[ $this->theme ][ $infos['location'] ][ $infos['lang'] ] = $menu ?: 0; if ( $this->options->get( 'default_lang' ) !== $infos['lang'] ) { unset( $locations[ $loc ] ); // Remove temporary locations before database update. } } $this->options->set( 'nav_menus', $nav_menus ); return $locations; } /** * Assigns menu languages and translations based on (temporary) locations. * * @since 1.1 * * @param mixed $mods Theme mods. * @return mixed */ public function pre_update_option_theme_mods( $mods ) { global $wp_customize; if ( ! current_user_can( 'edit_theme_options' ) || ! is_array( $mods ) || ! isset( $mods['nav_menu_locations'] ) || ! is_array( $mods['nav_menu_locations'] ) ) { return $mods; } /* * Manage Locations tab in Appearance -> Menus. */ if ( isset( $_GET['action'], $_REQUEST['_wpnonce'] ) && wp_verify_nonce( $_REQUEST['_wpnonce'], 'save-menu-locations' ) && 'locations' === $_GET['action'] ) { $nav_menus = $this->options->get( 'nav_menus' ); $nav_menus[ $this->theme ] = array(); $this->options->set( 'nav_menus', $nav_menus ); $mods['nav_menu_locations'] = $this->update_nav_menu_locations( $mods['nav_menu_locations'] ); return $mods; } /* * Edit Menus tab in Appearance -> Menus. */ if ( isset( $_POST['action'], $_REQUEST['update-nav-menu-nonce'] ) && wp_verify_nonce( $_REQUEST['update-nav-menu-nonce'], 'update-nav_menu' ) && 'update' === $_POST['action'] ) { $nav_menus = $this->options->get( 'nav_menus' ); $nav_menus[ $this->theme ] = array(); $this->options->set( 'nav_menus', $nav_menus ); $mods['nav_menu_locations'] = $this->update_nav_menu_locations( $mods['nav_menu_locations'] ); return $mods; } if ( ! $wp_customize instanceof WP_Customize_Manager ) { return $mods; } /* * Customizer. Don't reset locations in this case. */ $action = 'save-customize_' . $wp_customize->get_stylesheet(); if ( isset( $_POST['action'], $_REQUEST['nonce'] ) && wp_verify_nonce( $_REQUEST['nonce'], $action ) && 'customize_save' == $_POST['action'] ) { $mods['nav_menu_locations'] = $this->update_nav_menu_locations( $mods['nav_menu_locations'] ); } return $mods; } /** * Fills temporary menu locations based on menus translations * * @since 1.2 * * @param bool|array $menus Associative array of registered navigation menu IDs keyed by their location name. * @return bool|array */ public function theme_mod_nav_menu_locations( $menus ) { // Prefill locations with 0 value in case a location does not exist in $menus $locations = get_registered_nav_menus(); if ( is_array( $locations ) ) { $locations = array_fill_keys( array_keys( $locations ), 0 ); $menus = is_array( $menus ) ? array_merge( $locations, $menus ) : $locations; } if ( is_array( $menus ) ) { foreach ( array_keys( $menus ) as $loc ) { foreach ( $this->model->get_languages_list() as $lang ) { if ( ! empty( $this->options['nav_menus'][ $this->theme ][ $loc ][ $lang->slug ] ) && term_exists( $this->options['nav_menus'][ $this->theme ][ $loc ][ $lang->slug ], 'nav_menu' ) ) { $menus[ $this->combine_location( $loc, $lang ) ] = $this->options['nav_menus'][ $this->theme ][ $loc ][ $lang->slug ]; } } } } return $menus; } /** * Removes the nav menu term_id from the locations stored in