子菜单添加wordpress

时间:2015-07-23 09:16:27

标签: php html css wordpress

我有一个wordpress页面,它有以下菜单布局。

  1. 主菜单
    1. 子菜单
    1. 列表项
  2. 我想在子菜单(Submenuception)中添加另一个子菜单

      1. 子菜单
        1. 子子菜单
    1. 我目前的主题不支持它,如何通过代码添加它。 有人可以帮助我指出正确的方向。谢谢!

      添加了主题nav-menu-template的代码:

      <?php
      /**
       * Navigation Menu template functions
       *
       * @package WordPress
       * @subpackage Nav_Menus
       * @since 3.0.0
       */
      
      /**
       * Create HTML list of nav menu items.
       *
       * @since 3.0.0
       * @uses Walker
       */
      class Walker_Nav_Menu extends Walker {
          /**
           * What the class handles.
           *
           * @see Walker::$tree_type
           * @since 3.0.0
           * @var string
           */
          public $tree_type = array( 'post_type', 'taxonomy', 'custom' );
      
          /**
           * Database fields to use.
           *
           * @see Walker::$db_fields
           * @since 3.0.0
           * @todo Decouple this.
           * @var array
           */
          public $db_fields = array( 'parent' => 'menu_item_parent', 'id' => 'db_id' );
      
          /**
           * Starts the list before the elements are added.
           *
           * @see Walker::start_lvl()
           *
           * @since 3.0.0
           *
           * @param string $output Passed by reference. Used to append additional content.
           * @param int    $depth  Depth of menu item. Used for padding.
           * @param array  $args   An array of arguments. @see wp_nav_menu()
           */
          public function start_lvl( &$output, $depth = 0, $args = array() ) {
              $indent = str_repeat("\t", $depth);
              $output .= "\n$indent<ul class=\"sub-menu\">\n";
          }
      
          /**
           * Ends the list of after the elements are added.
           *
           * @see Walker::end_lvl()
           *
           * @since 3.0.0
           *
           * @param string $output Passed by reference. Used to append additional content.
           * @param int    $depth  Depth of menu item. Used for padding.
           * @param array  $args   An array of arguments. @see wp_nav_menu()
           */
          public function end_lvl( &$output, $depth = 0, $args = array() ) {
              $indent = str_repeat("\t", $depth);
              $output .= "$indent</ul>\n";
          }
      
          /**
           * Start the element output.
           *
           * @see Walker::start_el()
           *
           * @since 3.0.0
           *
           * @param string $output Passed by reference. Used to append additional content.
           * @param object $item   Menu item data object.
           * @param int    $depth  Depth of menu item. Used for padding.
           * @param array  $args   An array of arguments. @see wp_nav_menu()
           * @param int    $id     Current item ID.
           */
          public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
              $indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
      
              $classes = empty( $item->classes ) ? array() : (array) $item->classes;
              $classes[] = 'menu-item-' . $item->ID;
      
              /**
               * Filter the CSS class(es) applied to a menu item's list item element.
               *
               * @since 3.0.0
               * @since 4.1.0 The `$depth` parameter was added.
               *
               * @param array  $classes The CSS classes that are applied to the menu item's `<li>` element.
               * @param object $item    The current menu item.
               * @param array  $args    An array of {@see wp_nav_menu()} arguments.
               * @param int    $depth   Depth of menu item. Used for padding.
               */
              $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ) );
              $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
      
              /**
               * Filter the ID applied to a menu item's list item element.
               *
               * @since 3.0.1
               * @since 4.1.0 The `$depth` parameter was added.
               *
               * @param string $menu_id The ID that is applied to the menu item's `<li>` element.
               * @param object $item    The current menu item.
               * @param array  $args    An array of {@see wp_nav_menu()} arguments.
               * @param int    $depth   Depth of menu item. Used for padding.
               */
              $id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args, $depth );
              $id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
      
              $output .= $indent . '<li' . $id . $class_names .'>';
      
              $atts = array();
              $atts['title']  = ! empty( $item->attr_title ) ? $item->attr_title : '';
              $atts['target'] = ! empty( $item->target )     ? $item->target     : '';
              $atts['rel']    = ! empty( $item->xfn )        ? $item->xfn        : '';
              $atts['href']   = ! empty( $item->url )        ? $item->url        : '';
      
              /**
               * Filter the HTML attributes applied to a menu item's anchor element.
               *
               * @since 3.6.0
               * @since 4.1.0 The `$depth` parameter was added.
               *
               * @param array $atts {
               *     The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
               *
               *     @type string $title  Title attribute.
               *     @type string $target Target attribute.
               *     @type string $rel    The rel attribute.
               *     @type string $href   The href attribute.
               * }
               * @param object $item  The current menu item.
               * @param array  $args  An array of {@see wp_nav_menu()} arguments.
               * @param int    $depth Depth of menu item. Used for padding.
               */
              $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth );
      
              $attributes = '';
              foreach ( $atts as $attr => $value ) {
                  if ( ! empty( $value ) ) {
                      $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
                      $attributes .= ' ' . $attr . '="' . $value . '"';
                  }
              }
      
              $item_output = $args->before;
              $item_output .= '<a'. $attributes .'>';
              /** This filter is documented in wp-includes/post-template.php */
              $item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
              $item_output .= '</a>';
              $item_output .= $args->after;
      
              /**
               * Filter a menu item's starting output.
               *
               * The menu item's starting output only includes `$args->before`, the opening `<a>`,
               * the menu item's title, the closing `</a>`, and `$args->after`. Currently, there is
               * no filter for modifying the opening and closing `<li>` for a menu item.
               *
               * @since 3.0.0
               *
               * @param string $item_output The menu item's starting HTML output.
               * @param object $item        Menu item data object.
               * @param int    $depth       Depth of menu item. Used for padding.
               * @param array  $args        An array of {@see wp_nav_menu()} arguments.
               */
              $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
          }
      
          /**
           * Ends the element output, if needed.
           *
           * @see Walker::end_el()
           *
           * @since 3.0.0
           *
           * @param string $output Passed by reference. Used to append additional content.
           * @param object $item   Page data object. Not used.
           * @param int    $depth  Depth of page. Not Used.
           * @param array  $args   An array of arguments. @see wp_nav_menu()
           */
          public function end_el( &$output, $item, $depth = 0, $args = array() ) {
              $output .= "</li>\n";
          }
      
      } // Walker_Nav_Menu
      
      /**
       * Displays a navigation menu.
       *
       * @since 3.0.0
       *
       * @param array $args {
       *     Optional. Array of nav menu arguments.
       *
       *     @type string        $menu            Desired menu. Accepts (matching in order) id, slug, name. 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 callback|bool $fallback_cb     If the menu doesn't exists, a callback function will fire.
       *                                          Default is 'wp_page_menu'. Set to false for no fallback.
       *     @type string        $before          Text before the link text. Default empty.
       *     @type string        $after           Text after the link text. Default empty.
       *     @type string        $link_before     Text before the link. Default empty.
       *     @type string        $link_after      Text after the link. 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.
       *     @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. Default is a ul with an id and class.
       *                                          Uses printf() format with numbered placeholders.
       * }
       * @return mixed 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();
      
          $defaults = array( 'menu' => '', 'container' => 'div', 'container_class' => '', 'container_id' => '', 'menu_class' => 'menu', 'menu_id' => '',
          'echo' => true, 'fallback_cb' => 'wp_page_menu', 'before' => '', 'after' => '', 'link_before' => '', 'link_after' => '', 'items_wrap' => '<ul id="%1$s" class="%2$s">%3$s</ul>',
          'depth' => 0, 'walker' => '', 'theme_location' => '' );
      
          $args = wp_parse_args( $args, $defaults );
          /**
           * Filter 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;
      
          /**
           * Filter whether to short-circuit the wp_nav_menu() output.
           *
           * Returning a non-null value to 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 object      $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
          if ( ! $menu && $args->theme_location && ( $locations = get_nav_menu_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 ) {
                  if ( $menu_items = wp_get_nav_menu_items( $menu_maybe->term_id, array( 'update_post_term_cache' => false ) ) ) {
                      $menu = $menu_maybe;
                      break;
                  }
              }
          }
      
          // 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 ) )
              && $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 ) {
              /**
               * Filter the list of HTML tags that are valid for use as menu containers.
               *
               * @since 3.0.0
               *
               * @param array $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 ( in_array( $args->container, $allowed_tags ) ) {
                  $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 ) . '"' : '';
                  $nav_menu .= '<'. $args->container . $id . $class . '>';
              }
          }
      
          // Set up the $menu_item variables
          _wp_menu_item_classes_by_context( $menu_items );
      
          $sorted_menu_items = $menu_items_with_children = array();
          foreach ( (array) $menu_items as $menu_item ) {
              $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 );
      
          /**
           * Filter 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 object $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, $menu_id_slugs ) ) {
                  if ( preg_match( '#-(\d+)$#', $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 : '';
      
          /**
           * Filter 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 object $args  An object containing wp_nav_menu() arguments.
           */
          $items = apply_filters( 'wp_nav_menu_items', $items, $args );
          /**
           * Filter 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 object $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 . '>';
      
          /**
           * Filter 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 object $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;
      }
      
      /**
       * Add the class property classes for the current context, if applicable.
       *
       * @access private
       * @since 3.0.0
       *
       * @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 $anc => $descs ) {
                              foreach ( (array) $descs as $desc )
                                  $term_to_ancestor[ $desc ] = $anc;
                          }
      
                          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 $anc => $descs ) {
                  foreach ( (array) $descs as $desc )
                      $term_to_ancestor[ $desc ] = $anc;
              }
              $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();
      
          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;
      
              // 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( $menu_item->object_id, $possible_object_parents ) ) {
                  $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 = get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) ) &&
                      ! in_array( $_anc_id, $active_ancestor_item_ids )
                  ) {
                      $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-requested URL
              } elseif ( 'custom' == $menu_item->object ) {
                  $_root_relative_current = 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 = untrailingslashit( $raw_item_url );
                  $_indexless_current = untrailingslashit( preg_replace( '/' . preg_quote( $wp_rewrite->index, '/' ) . '$/', '', $current_url ) );
      
                  if ( $raw_item_url && in_array( $item_url, array( $current_url, $_indexless_current, $_root_relative_current ) ) ) {
                      $classes[] = 'current-menu-item';
                      $menu_items[$key]->current = true;
                      $_anc_id = (int) $menu_item->db_id;
      
                      while(
                          ( $_anc_id = get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) ) &&
                          ! in_array( $_anc_id, $active_ancestor_item_ids )
                      ) {
                          $active_ancestor_item_ids[] = $_anc_id;
                      }
      
                      if ( in_array( home_url(), array( untrailingslashit( $current_url ), untrailingslashit( $_indexless_current ) ) ) ) {
                          // 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 current-menu-item class when extra query arguments 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( $parent_item->object_id, $queried_object->ancestors ) &&
                          $parent_item->object != $queried_object->ID
                      ) ||
      
                      // ancestral term
                      (
                          'taxonomy' == $parent_item->type &&
                          isset( $possible_taxonomy_ancestors[ $parent_item->object ] ) &&
                          in_array( $parent_item->object_id, $possible_taxonomy_ancestors[ $parent_item->object ] ) &&
                          (
                              ! isset( $queried_object->term_id ) ||
                              $parent_item->object_id != $queried_object->term_id
                          )
                      )
                  )
              ) {
                  $classes[] = empty( $queried_object->taxonomy ) ? 'current-' . $queried_object->post_type . '-ancestor' : 'current-' . $queried_object->taxonomy . '-ancestor';
              }
      
              if ( in_array(  intval( $parent_item->db_id ), $active_ancestor_item_ids ) ) {
                  $classes[] = 'current-menu-ancestor';
                  $menu_items[$key]->current_item_ancestor = true;
              }
              if ( in_array( $parent_item->db_id, $active_parent_item_ids ) ) {
                  $classes[] = 'current-menu-parent';
                  $menu_items[$key]->current_item_parent = true;
              }
              if ( in_array( $parent_item->object_id, $active_parent_object_ids ) )
                  $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) )
                      $classes[] = 'current_page_parent';
                  if ( in_array('current-menu-ancestor', $classes) )
                      $classes[] = 'current_page_ancestor';
              }
      
              $menu_items[$key]->classes = array_unique( $classes );
          }
      }
      
      /**
       * Retrieve the HTML list content for nav menu items.
       *
       * @uses Walker_Nav_Menu to create HTML list content.
       * @since 3.0.0
       * @see Walker::walk() for parameters and return description.
       */
      function walk_nav_menu_tree( $items, $depth, $r ) {
          $walker = ( empty($r->walker) ) ? new Walker_Nav_Menu : $r->walker;
          $args = array( $items, $depth, $r );
      
          return call_user_func_array( array($walker, 'walk'), $args );
      }
      
      /**
       * Prevents a menu item ID from being used more than once.
       *
       * @since 3.0.1
       * @access private
       */
      function _nav_menu_item_id_use_once( $id, $item ) {
          static $_used_ids = array();
          if ( in_array( $item->ID, $_used_ids ) )
              return '';
          $_used_ids[] = $item->ID;
          return $id;
      }
      add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );
      

1 个答案:

答案 0 :(得分:1)

我无法在评论中添加此内容,但尝试在wordpress,style.css中添加子子菜单,或者在添加css的任何地方尝试添加:

.main-menu li ul.sub-menu li ul{
    margin:0;
    padding: 0 15px;
    background: url("images/submenu-top-bg.jpg") top left repeat-x #F3F3F3;
    top: 0;
    left: 100%;
}

.main-menu li ul.sub-menu li ul li{
    float:left;
    list-style:none;
}

.main-menu li ul.sub-menu li ul > li{
    float: none;
    display: block;
    padding: 0;
    margin: 0;
    width: auto;
    background: none;
}

.main-menu li ul.sub-menu li ul li a{
    padding: 8px 0px 12px 0!important;
}

.main-menu li ul.sub-menu li ul li:first-child a{
    padding: 14px 0px 10px 0!important;
}

.main-menu li ul.sub-menu li ul li a:hover{
    display:list-item;
    overflow:hidden;
    text-decoration:none;
    font-size:13px;
    line-height:10px;
    font-weight:normal;
    text-shadow:1px 1px #fff;
    white-space:nowrap;
}

.main-menu li ul.sub-menu li ul li a span{
    font-family:'Open Sans',sans-serif;
}

看看二级菜单是否正常工作。

修改

代码已更改以解决问题。

编辑2

由于你的jquery搞砸了,你可以添加:

.main-menu li ul.sub-menu li:hover ul{
    display:block!important;
}

.main-menu li ul.sub-menu:before{
    content:"";
    position:absolute;
    top:0;
    right:100%;
    width:20px;
    height:100%;
}

在第58行的master.js文件中,将代码更改为:

function jsddm_open() {
    jsddm_canceltimer();
    ddmenuitem = jQuery(this).find('> ul').slideDown('fast');
}

这将使您的子菜单在悬停时显示。

这是一个丑陋的解决方案,但它是一些东西。您可以在js文件周围进行调整并调整它以使其更好地工作。