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/wp-admin/includes/ -> nav-menu.php (source)

   1  <?php
   2  /**
   3   * Core Navigation Menu API
   4   *
   5   * @package WordPress
   6   * @subpackage Nav_Menus
   7   * @since 3.0.0
   8   */
   9  
  10  /** Walker_Nav_Menu_Edit class */
  11  require_once ABSPATH . 'wp-admin/includes/class-walker-nav-menu-edit.php';
  12  
  13  /** Walker_Nav_Menu_Checklist class */
  14  require_once ABSPATH . 'wp-admin/includes/class-walker-nav-menu-checklist.php';
  15  
  16  /**
  17   * Prints the appropriate response to a menu quick search.
  18   *
  19   * @since 3.0.0
  20   *
  21   * @param array $request The unsanitized request values.
  22   */
  23  function _wp_ajax_menu_quick_search( $request = array() ) {
  24      $args            = array();
  25      $type            = isset( $request['type'] ) ? $request['type'] : '';
  26      $object_type     = isset( $request['object_type'] ) ? $request['object_type'] : '';
  27      $query           = isset( $request['q'] ) ? $request['q'] : '';
  28      $response_format = isset( $request['response-format'] ) ? $request['response-format'] : '';
  29  
  30      if ( ! $response_format || ! in_array( $response_format, array( 'json', 'markup' ), true ) ) {
  31          $response_format = 'json';
  32      }
  33  
  34      if ( 'markup' === $response_format ) {
  35          $args['walker'] = new Walker_Nav_Menu_Checklist;
  36      }
  37  
  38      if ( 'get-post-item' === $type ) {
  39          if ( post_type_exists( $object_type ) ) {
  40              if ( isset( $request['ID'] ) ) {
  41                  $object_id = (int) $request['ID'];
  42                  if ( 'markup' === $response_format ) {
  43                      echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', array( get_post( $object_id ) ) ), 0, (object) $args );
  44                  } elseif ( 'json' === $response_format ) {
  45                      echo wp_json_encode(
  46                          array(
  47                              'ID'         => $object_id,
  48                              'post_title' => get_the_title( $object_id ),
  49                              'post_type'  => get_post_type( $object_id ),
  50                          )
  51                      );
  52                      echo "\n";
  53                  }
  54              }
  55          } elseif ( taxonomy_exists( $object_type ) ) {
  56              if ( isset( $request['ID'] ) ) {
  57                  $object_id = (int) $request['ID'];
  58                  if ( 'markup' === $response_format ) {
  59                      echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', array( get_term( $object_id, $object_type ) ) ), 0, (object) $args );
  60                  } elseif ( 'json' === $response_format ) {
  61                      $post_obj = get_term( $object_id, $object_type );
  62                      echo wp_json_encode(
  63                          array(
  64                              'ID'         => $object_id,
  65                              'post_title' => $post_obj->name,
  66                              'post_type'  => $object_type,
  67                          )
  68                      );
  69                      echo "\n";
  70                  }
  71              }
  72          }
  73      } elseif ( preg_match( '/quick-search-(posttype|taxonomy)-([a-zA-Z_-]*\b)/', $type, $matches ) ) {
  74          if ( 'posttype' === $matches[1] && get_post_type_object( $matches[2] ) ) {
  75              $post_type_obj = _wp_nav_menu_meta_box_object( get_post_type_object( $matches[2] ) );
  76              $args          = array_merge(
  77                  $args,
  78                  array(
  79                      'no_found_rows'          => true,
  80                      'update_post_meta_cache' => false,
  81                      'update_post_term_cache' => false,
  82                      'posts_per_page'         => 10,
  83                      'post_type'              => $matches[2],
  84                      's'                      => $query,
  85                  )
  86              );
  87              if ( isset( $post_type_obj->_default_query ) ) {
  88                  $args = array_merge( $args, (array) $post_type_obj->_default_query );
  89              }
  90              $search_results_query = new WP_Query( $args );
  91              if ( ! $search_results_query->have_posts() ) {
  92                  return;
  93              }
  94              while ( $search_results_query->have_posts() ) {
  95                  $post = $search_results_query->next_post();
  96                  if ( 'markup' === $response_format ) {
  97                      $var_by_ref = $post->ID;
  98                      echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', array( get_post( $var_by_ref ) ) ), 0, (object) $args );
  99                  } elseif ( 'json' === $response_format ) {
 100                      echo wp_json_encode(
 101                          array(
 102                              'ID'         => $post->ID,
 103                              'post_title' => get_the_title( $post->ID ),
 104                              'post_type'  => $matches[2],
 105                          )
 106                      );
 107                      echo "\n";
 108                  }
 109              }
 110          } elseif ( 'taxonomy' === $matches[1] ) {
 111              $terms = get_terms(
 112                  array(
 113                      'taxonomy'   => $matches[2],
 114                      'name__like' => $query,
 115                      'number'     => 10,
 116                      'hide_empty' => false,
 117                  )
 118              );
 119              if ( empty( $terms ) || is_wp_error( $terms ) ) {
 120                  return;
 121              }
 122              foreach ( (array) $terms as $term ) {
 123                  if ( 'markup' === $response_format ) {
 124                      echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', array( $term ) ), 0, (object) $args );
 125                  } elseif ( 'json' === $response_format ) {
 126                      echo wp_json_encode(
 127                          array(
 128                              'ID'         => $term->term_id,
 129                              'post_title' => $term->name,
 130                              'post_type'  => $matches[2],
 131                          )
 132                      );
 133                      echo "\n";
 134                  }
 135              }
 136          }
 137      }
 138  }
 139  
 140  /**
 141   * Register nav menu meta boxes and advanced menu items.
 142   *
 143   * @since 3.0.0
 144   */
 145  function wp_nav_menu_setup() {
 146      // Register meta boxes.
 147      wp_nav_menu_post_type_meta_boxes();
 148      add_meta_box( 'add-custom-links', __( 'Custom Links' ), 'wp_nav_menu_item_link_meta_box', 'nav-menus', 'side', 'default' );
 149      wp_nav_menu_taxonomy_meta_boxes();
 150  
 151      // Register advanced menu items (columns).
 152      add_filter( 'manage_nav-menus_columns', 'wp_nav_menu_manage_columns' );
 153  
 154      // If first time editing, disable advanced items by default.
 155      if ( false === get_user_option( 'managenav-menuscolumnshidden' ) ) {
 156          $user = wp_get_current_user();
 157          update_user_meta(
 158              $user->ID,
 159              'managenav-menuscolumnshidden',
 160              array(
 161                  0 => 'link-target',
 162                  1 => 'css-classes',
 163                  2 => 'xfn',
 164                  3 => 'description',
 165                  4 => 'title-attribute',
 166              )
 167          );
 168      }
 169  }
 170  
 171  /**
 172   * Limit the amount of meta boxes to pages, posts, links, and categories for first time users.
 173   *
 174   * @since 3.0.0
 175   *
 176   * @global array $wp_meta_boxes
 177   */
 178  function wp_initial_nav_menu_meta_boxes() {
 179      global $wp_meta_boxes;
 180  
 181      if ( get_user_option( 'metaboxhidden_nav-menus' ) !== false || ! is_array( $wp_meta_boxes ) ) {
 182          return;
 183      }
 184  
 185      $initial_meta_boxes = array( 'add-post-type-page', 'add-post-type-post', 'add-custom-links', 'add-category' );
 186      $hidden_meta_boxes  = array();
 187  
 188      foreach ( array_keys( $wp_meta_boxes['nav-menus'] ) as $context ) {
 189          foreach ( array_keys( $wp_meta_boxes['nav-menus'][ $context ] ) as $priority ) {
 190              foreach ( $wp_meta_boxes['nav-menus'][ $context ][ $priority ] as $box ) {
 191                  if ( in_array( $box['id'], $initial_meta_boxes, true ) ) {
 192                      unset( $box['id'] );
 193                  } else {
 194                      $hidden_meta_boxes[] = $box['id'];
 195                  }
 196              }
 197          }
 198      }
 199  
 200      $user = wp_get_current_user();
 201      update_user_meta( $user->ID, 'metaboxhidden_nav-menus', $hidden_meta_boxes );
 202  }
 203  
 204  /**
 205   * Creates meta boxes for any post type menu item..
 206   *
 207   * @since 3.0.0
 208   */
 209  function wp_nav_menu_post_type_meta_boxes() {
 210      $post_types = get_post_types( array( 'show_in_nav_menus' => true ), 'object' );
 211  
 212      if ( ! $post_types ) {
 213          return;
 214      }
 215  
 216      foreach ( $post_types as $post_type ) {
 217          /**
 218           * Filters whether a menu items meta box will be added for the current
 219           * object type.
 220           *
 221           * If a falsey value is returned instead of an object, the menu items
 222           * meta box for the current meta box object will not be added.
 223           *
 224           * @since 3.0.0
 225           *
 226           * @param WP_Post_Type|false $post_type The current object to add a menu items
 227           *                                      meta box for.
 228           */
 229          $post_type = apply_filters( 'nav_menu_meta_box_object', $post_type );
 230          if ( $post_type ) {
 231              $id = $post_type->name;
 232              // Give pages a higher priority.
 233              $priority = ( 'page' === $post_type->name ? 'core' : 'default' );
 234              add_meta_box( "add-post-type-{$id}", $post_type->labels->name, 'wp_nav_menu_item_post_type_meta_box', 'nav-menus', 'side', $priority, $post_type );
 235          }
 236      }
 237  }
 238  
 239  /**
 240   * Creates meta boxes for any taxonomy menu item.
 241   *
 242   * @since 3.0.0
 243   */
 244  function wp_nav_menu_taxonomy_meta_boxes() {
 245      $taxonomies = get_taxonomies( array( 'show_in_nav_menus' => true ), 'object' );
 246  
 247      if ( ! $taxonomies ) {
 248          return;
 249      }
 250  
 251      foreach ( $taxonomies as $tax ) {
 252          /** This filter is documented in wp-admin/includes/nav-menu.php */
 253          $tax = apply_filters( 'nav_menu_meta_box_object', $tax );
 254          if ( $tax ) {
 255              $id = $tax->name;
 256              add_meta_box( "add-{$id}", $tax->labels->name, 'wp_nav_menu_item_taxonomy_meta_box', 'nav-menus', 'side', 'default', $tax );
 257          }
 258      }
 259  }
 260  
 261  /**
 262   * Check whether to disable the Menu Locations meta box submit button and inputs.
 263   *
 264   * @since 3.6.0
 265   * @since 5.3.1 The `$echo` parameter was added.
 266   *
 267   * @global bool $one_theme_location_no_menus to determine if no menus exist
 268   *
 269   * @param int|string $nav_menu_selected_id ID, name, or slug of the currently selected menu.
 270   * @param bool       $echo                 Whether to echo or just return the string.
 271   * @return string|false Disabled attribute if at least one menu exists, false if not.
 272   */
 273  function wp_nav_menu_disabled_check( $nav_menu_selected_id, $echo = true ) {
 274      global $one_theme_location_no_menus;
 275  
 276      if ( $one_theme_location_no_menus ) {
 277          return false;
 278      }
 279  
 280      return disabled( $nav_menu_selected_id, 0, $echo );
 281  }
 282  
 283  /**
 284   * Displays a meta box for the custom links menu item.
 285   *
 286   * @since 3.0.0
 287   *
 288   * @global int        $_nav_menu_placeholder
 289   * @global int|string $nav_menu_selected_id
 290   */
 291  function wp_nav_menu_item_link_meta_box() {
 292      global $_nav_menu_placeholder, $nav_menu_selected_id;
 293  
 294      $_nav_menu_placeholder = 0 > $_nav_menu_placeholder ? $_nav_menu_placeholder - 1 : -1;
 295  
 296      ?>
 297      <div class="customlinkdiv" id="customlinkdiv">
 298          <input type="hidden" value="custom" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-type]" />
 299          <p id="menu-item-url-wrap" class="wp-clearfix">
 300              <label class="howto" for="custom-menu-item-url"><?php _e( 'URL' ); ?></label>
 301              <input id="custom-menu-item-url" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-url]" type="text"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="code menu-item-textbox form-required" placeholder="https://" />
 302          </p>
 303  
 304          <p id="menu-item-name-wrap" class="wp-clearfix">
 305              <label class="howto" for="custom-menu-item-name"><?php _e( 'Link Text' ); ?></label>
 306              <input id="custom-menu-item-name" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-title]" type="text"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="regular-text menu-item-textbox" />
 307          </p>
 308  
 309          <p class="button-controls wp-clearfix">
 310              <span class="add-to-menu">
 311                  <input type="submit"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="button submit-add-to-menu right" value="<?php esc_attr_e( 'Add to Menu' ); ?>" name="add-custom-menu-item" id="submit-customlinkdiv" />
 312                  <span class="spinner"></span>
 313              </span>
 314          </p>
 315  
 316      </div><!-- /.customlinkdiv -->
 317      <?php
 318  }
 319  
 320  /**
 321   * Displays a meta box for a post type menu item.
 322   *
 323   * @since 3.0.0
 324   *
 325   * @global int        $_nav_menu_placeholder
 326   * @global int|string $nav_menu_selected_id
 327   *
 328   * @param string $object Not used.
 329   * @param array  $box {
 330   *     Post type menu item meta box arguments.
 331   *
 332   *     @type string       $id       Meta box 'id' attribute.
 333   *     @type string       $title    Meta box title.
 334   *     @type callable     $callback Meta box display callback.
 335   *     @type WP_Post_Type $args     Extra meta box arguments (the post type object for this meta box).
 336   * }
 337   */
 338  function wp_nav_menu_item_post_type_meta_box( $object, $box ) {
 339      global $_nav_menu_placeholder, $nav_menu_selected_id;
 340  
 341      $post_type_name = $box['args']->name;
 342      $post_type      = get_post_type_object( $post_type_name );
 343      $tab_name       = $post_type_name . '-tab';
 344  
 345      // Paginate browsing for large numbers of post objects.
 346      $per_page = 50;
 347      $pagenum  = isset( $_REQUEST[ $tab_name ] ) && isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 1;
 348      $offset   = 0 < $pagenum ? $per_page * ( $pagenum - 1 ) : 0;
 349  
 350      $args = array(
 351          'offset'                 => $offset,
 352          'order'                  => 'ASC',
 353          'orderby'                => 'title',
 354          'posts_per_page'         => $per_page,
 355          'post_type'              => $post_type_name,
 356          'suppress_filters'       => true,
 357          'update_post_term_cache' => false,
 358          'update_post_meta_cache' => false,
 359      );
 360  
 361      if ( isset( $box['args']->_default_query ) ) {
 362          $args = array_merge( $args, (array) $box['args']->_default_query );
 363      }
 364  
 365      /*
 366       * If we're dealing with pages, let's prioritize the Front Page,
 367       * Posts Page and Privacy Policy Page at the top of the list.
 368       */
 369      $important_pages = array();
 370      if ( 'page' === $post_type_name ) {
 371          $suppress_page_ids = array();
 372  
 373          // Insert Front Page or custom Home link.
 374          $front_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_on_front' ) : 0;
 375  
 376          $front_page_obj = null;
 377          if ( ! empty( $front_page ) ) {
 378              $front_page_obj                = get_post( $front_page );
 379              $front_page_obj->front_or_home = true;
 380  
 381              $important_pages[]   = $front_page_obj;
 382              $suppress_page_ids[] = $front_page_obj->ID;
 383          } else {
 384              $_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? (int) $_nav_menu_placeholder - 1 : -1;
 385              $front_page_obj        = (object) array(
 386                  'front_or_home' => true,
 387                  'ID'            => 0,
 388                  'object_id'     => $_nav_menu_placeholder,
 389                  'post_content'  => '',
 390                  'post_excerpt'  => '',
 391                  'post_parent'   => '',
 392                  'post_title'    => _x( 'Home', 'nav menu home label' ),
 393                  'post_type'     => 'nav_menu_item',
 394                  'type'          => 'custom',
 395                  'url'           => home_url( '/' ),
 396              );
 397  
 398              $important_pages[] = $front_page_obj;
 399          }
 400  
 401          // Insert Posts Page.
 402          $posts_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_for_posts' ) : 0;
 403  
 404          if ( ! empty( $posts_page ) ) {
 405              $posts_page_obj             = get_post( $posts_page );
 406              $posts_page_obj->posts_page = true;
 407  
 408              $important_pages[]   = $posts_page_obj;
 409              $suppress_page_ids[] = $posts_page_obj->ID;
 410          }
 411  
 412          // Insert Privacy Policy Page.
 413          $privacy_policy_page_id = (int) get_option( 'wp_page_for_privacy_policy' );
 414  
 415          if ( ! empty( $privacy_policy_page_id ) ) {
 416              $privacy_policy_page = get_post( $privacy_policy_page_id );
 417              if ( $privacy_policy_page instanceof WP_Post && 'publish' === $privacy_policy_page->post_status ) {
 418                  $privacy_policy_page->privacy_policy_page = true;
 419  
 420                  $important_pages[]   = $privacy_policy_page;
 421                  $suppress_page_ids[] = $privacy_policy_page->ID;
 422              }
 423          }
 424  
 425          // Add suppression array to arguments for WP_Query.
 426          if ( ! empty( $suppress_page_ids ) ) {
 427              $args['post__not_in'] = $suppress_page_ids;
 428          }
 429      }
 430  
 431      // @todo Transient caching of these results with proper invalidation on updating of a post of this type.
 432      $get_posts = new WP_Query;
 433      $posts     = $get_posts->query( $args );
 434  
 435      // Only suppress and insert when more than just suppression pages available.
 436      if ( ! $get_posts->post_count ) {
 437          if ( ! empty( $suppress_page_ids ) ) {
 438              unset( $args['post__not_in'] );
 439              $get_posts = new WP_Query;
 440              $posts     = $get_posts->query( $args );
 441          } else {
 442              echo '<p>' . __( 'No items.' ) . '</p>';
 443              return;
 444          }
 445      } elseif ( ! empty( $important_pages ) ) {
 446          $posts = array_merge( $important_pages, $posts );
 447      }
 448  
 449      $num_pages = $get_posts->max_num_pages;
 450  
 451      $page_links = paginate_links(
 452          array(
 453              'base'               => add_query_arg(
 454                  array(
 455                      $tab_name     => 'all',
 456                      'paged'       => '%#%',
 457                      'item-type'   => 'post_type',
 458                      'item-object' => $post_type_name,
 459                  )
 460              ),
 461              'format'             => '',
 462              'prev_text'          => '<span aria-label="' . esc_attr__( 'Previous page' ) . '">' . __( '&laquo;' ) . '</span>',
 463              'next_text'          => '<span aria-label="' . esc_attr__( 'Next page' ) . '">' . __( '&raquo;' ) . '</span>',
 464              'before_page_number' => '<span class="screen-reader-text">' . __( 'Page' ) . '</span> ',
 465              'total'              => $num_pages,
 466              'current'            => $pagenum,
 467          )
 468      );
 469  
 470      $db_fields = false;
 471      if ( is_post_type_hierarchical( $post_type_name ) ) {
 472          $db_fields = array(
 473              'parent' => 'post_parent',
 474              'id'     => 'ID',
 475          );
 476      }
 477  
 478      $walker = new Walker_Nav_Menu_Checklist( $db_fields );
 479  
 480      $current_tab = 'most-recent';
 481  
 482      if ( isset( $_REQUEST[ $tab_name ] ) && in_array( $_REQUEST[ $tab_name ], array( 'all', 'search' ), true ) ) {
 483          $current_tab = $_REQUEST[ $tab_name ];
 484      }
 485  
 486      if ( ! empty( $_REQUEST[ 'quick-search-posttype-' . $post_type_name ] ) ) {
 487          $current_tab = 'search';
 488      }
 489  
 490      $removed_args = array(
 491          'action',
 492          'customlink-tab',
 493          'edit-menu-item',
 494          'menu-item',
 495          'page-tab',
 496          '_wpnonce',
 497      );
 498  
 499      $most_recent_url = '';
 500      $view_all_url    = '';
 501      $search_url      = '';
 502      if ( $nav_menu_selected_id ) {
 503          $most_recent_url = esc_url( add_query_arg( $tab_name, 'most-recent', remove_query_arg( $removed_args ) ) );
 504          $view_all_url    = esc_url( add_query_arg( $tab_name, 'all', remove_query_arg( $removed_args ) ) );
 505          $search_url      = esc_url( add_query_arg( $tab_name, 'search', remove_query_arg( $removed_args ) ) );
 506      }
 507      ?>
 508      <div id="posttype-<?php echo $post_type_name; ?>" class="posttypediv">
 509          <ul id="posttype-<?php echo $post_type_name; ?>-tabs" class="posttype-tabs add-menu-item-tabs">
 510              <li <?php echo ( 'most-recent' === $current_tab ? ' class="tabs"' : '' ); ?>>
 511                  <a class="nav-tab-link" data-type="tabs-panel-posttype-<?php echo esc_attr( $post_type_name ); ?>-most-recent" href="<?php echo $most_recent_url; ?>#tabs-panel-posttype-<?php echo $post_type_name; ?>-most-recent">
 512                      <?php _e( 'Most Recent' ); ?>
 513                  </a>
 514              </li>
 515              <li <?php echo ( 'all' === $current_tab ? ' class="tabs"' : '' ); ?>>
 516                  <a class="nav-tab-link" data-type="<?php echo esc_attr( $post_type_name ); ?>-all" href="<?php echo $view_all_url; ?>#<?php echo $post_type_name; ?>-all">
 517                      <?php _e( 'View All' ); ?>
 518                  </a>
 519              </li>
 520              <li <?php echo ( 'search' === $current_tab ? ' class="tabs"' : '' ); ?>>
 521                  <a class="nav-tab-link" data-type="tabs-panel-posttype-<?php echo esc_attr( $post_type_name ); ?>-search" href="<?php echo $search_url; ?>#tabs-panel-posttype-<?php echo $post_type_name; ?>-search">
 522                      <?php _e( 'Search' ); ?>
 523                  </a>
 524              </li>
 525          </ul><!-- .posttype-tabs -->
 526  
 527          <div id="tabs-panel-posttype-<?php echo $post_type_name; ?>-most-recent" class="tabs-panel <?php echo ( 'most-recent' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" role="region" aria-label="<?php _e( 'Most Recent' ); ?>" tabindex="0">
 528              <ul id="<?php echo $post_type_name; ?>checklist-most-recent" class="categorychecklist form-no-clear">
 529                  <?php
 530                  $recent_args    = array_merge(
 531                      $args,
 532                      array(
 533                          'orderby'        => 'post_date',
 534                          'order'          => 'DESC',
 535                          'posts_per_page' => 15,
 536                      )
 537                  );
 538                  $most_recent    = $get_posts->query( $recent_args );
 539                  $args['walker'] = $walker;
 540  
 541                  /**
 542                   * Filters the posts displayed in the 'Most Recent' tab of the current
 543                   * post type's menu items meta box.
 544                   *
 545                   * The dynamic portion of the hook name, `$post_type_name`, refers to the post type name.
 546                   *
 547                   * Possible hook names include:
 548                   *
 549                   *  - `nav_menu_items_post_recent`
 550                   *  - `nav_menu_items_page_recent`
 551                   *
 552                   * @since 4.3.0
 553                   * @since 4.9.0 Added the `$recent_args` parameter.
 554                   *
 555                   * @param WP_Post[] $most_recent An array of post objects being listed.
 556                   * @param array     $args        An array of `WP_Query` arguments for the meta box.
 557                   * @param array     $box         Arguments passed to `wp_nav_menu_item_post_type_meta_box()`.
 558                   * @param array     $recent_args An array of `WP_Query` arguments for 'Most Recent' tab.
 559                   */
 560                  $most_recent = apply_filters( "nav_menu_items_{$post_type_name}_recent", $most_recent, $args, $box, $recent_args );
 561  
 562                  echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $most_recent ), 0, (object) $args );
 563                  ?>
 564              </ul>
 565          </div><!-- /.tabs-panel -->
 566  
 567          <div class="tabs-panel <?php echo ( 'search' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" id="tabs-panel-posttype-<?php echo $post_type_name; ?>-search" role="region" aria-label="<?php echo $post_type->labels->search_items; ?>" tabindex="0">
 568              <?php
 569              if ( isset( $_REQUEST[ 'quick-search-posttype-' . $post_type_name ] ) ) {
 570                  $searched       = esc_attr( $_REQUEST[ 'quick-search-posttype-' . $post_type_name ] );
 571                  $search_results = get_posts(
 572                      array(
 573                          's'         => $searched,
 574                          'post_type' => $post_type_name,
 575                          'fields'    => 'all',
 576                          'order'     => 'DESC',
 577                      )
 578                  );
 579              } else {
 580                  $searched       = '';
 581                  $search_results = array();
 582              }
 583              ?>
 584              <p class="quick-search-wrap">
 585                  <label for="quick-search-posttype-<?php echo $post_type_name; ?>" class="screen-reader-text"><?php _e( 'Search' ); ?></label>
 586                  <input type="search"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="quick-search" value="<?php echo $searched; ?>" name="quick-search-posttype-<?php echo $post_type_name; ?>" id="quick-search-posttype-<?php echo $post_type_name; ?>" />
 587                  <span class="spinner"></span>
 588                  <?php submit_button( __( 'Search' ), 'small quick-search-submit hide-if-js', 'submit', false, array( 'id' => 'submit-quick-search-posttype-' . $post_type_name ) ); ?>
 589              </p>
 590  
 591              <ul id="<?php echo $post_type_name; ?>-search-checklist" data-wp-lists="list:<?php echo $post_type_name; ?>" class="categorychecklist form-no-clear">
 592              <?php if ( ! empty( $search_results ) && ! is_wp_error( $search_results ) ) : ?>
 593                  <?php
 594                  $args['walker'] = $walker;
 595                  echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $search_results ), 0, (object) $args );
 596                  ?>
 597              <?php elseif ( is_wp_error( $search_results ) ) : ?>
 598                  <li><?php echo $search_results->get_error_message(); ?></li>
 599              <?php elseif ( ! empty( $searched ) ) : ?>
 600                  <li><?php _e( 'No results found.' ); ?></li>
 601              <?php endif; ?>
 602              </ul>
 603          </div><!-- /.tabs-panel -->
 604  
 605          <div id="<?php echo $post_type_name; ?>-all" class="tabs-panel tabs-panel-view-all <?php echo ( 'all' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" role="region" aria-label="<?php echo $post_type->labels->all_items; ?>" tabindex="0">
 606              <?php if ( ! empty( $page_links ) ) : ?>
 607                  <div class="add-menu-item-pagelinks">
 608                      <?php echo $page_links; ?>
 609                  </div>
 610              <?php endif; ?>
 611              <ul id="<?php echo $post_type_name; ?>checklist" data-wp-lists="list:<?php echo $post_type_name; ?>" class="categorychecklist form-no-clear">
 612                  <?php
 613                  $args['walker'] = $walker;
 614  
 615                  if ( $post_type->has_archive ) {
 616                      $_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? (int) $_nav_menu_placeholder - 1 : -1;
 617                      array_unshift(
 618                          $posts,
 619                          (object) array(
 620                              'ID'           => 0,
 621                              'object_id'    => $_nav_menu_placeholder,
 622                              'object'       => $post_type_name,
 623                              'post_content' => '',
 624                              'post_excerpt' => '',
 625                              'post_title'   => $post_type->labels->archives,
 626                              'post_type'    => 'nav_menu_item',
 627                              'type'         => 'post_type_archive',
 628                              'url'          => get_post_type_archive_link( $post_type_name ),
 629                          )
 630                      );
 631                  }
 632  
 633                  /**
 634                   * Filters the posts displayed in the 'View All' tab of the current
 635                   * post type's menu items meta box.
 636                   *
 637                   * The dynamic portion of the hook name, `$post_type_name`, refers
 638                   * to the slug of the current post type.
 639                   *
 640                   * Possible hook names include:
 641                   *
 642                   *  - `nav_menu_items_post`
 643                   *  - `nav_menu_items_page`
 644                   *
 645                   * @since 3.2.0
 646                   * @since 4.6.0 Converted the `$post_type` parameter to accept a WP_Post_Type object.
 647                   *
 648                   * @see WP_Query::query()
 649                   *
 650                   * @param object[]     $posts     The posts for the current post type. Mostly `WP_Post` objects, but
 651                   *                                can also contain "fake" post objects to represent other menu items.
 652                   * @param array        $args      An array of `WP_Query` arguments.
 653                   * @param WP_Post_Type $post_type The current post type object for this menu item meta box.
 654                   */
 655                  $posts = apply_filters( "nav_menu_items_{$post_type_name}", $posts, $args, $post_type );
 656  
 657                  $checkbox_items = walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $posts ), 0, (object) $args );
 658  
 659                  echo $checkbox_items;
 660                  ?>
 661              </ul>
 662              <?php if ( ! empty( $page_links ) ) : ?>
 663                  <div class="add-menu-item-pagelinks">
 664                      <?php echo $page_links; ?>
 665                  </div>
 666              <?php endif; ?>
 667          </div><!-- /.tabs-panel -->
 668  
 669          <p class="button-controls wp-clearfix" data-items-type="posttype-<?php echo esc_attr( $post_type_name ); ?>">
 670              <span class="list-controls hide-if-no-js">
 671                  <input type="checkbox"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> id="<?php echo esc_attr( $tab_name ); ?>" class="select-all" />
 672                  <label for="<?php echo esc_attr( $tab_name ); ?>"><?php _e( 'Select All' ); ?></label>
 673              </span>
 674  
 675              <span class="add-to-menu">
 676                  <input type="submit"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="button submit-add-to-menu right" value="<?php esc_attr_e( 'Add to Menu' ); ?>" name="add-post-type-menu-item" id="<?php echo esc_attr( 'submit-posttype-' . $post_type_name ); ?>" />
 677                  <span class="spinner"></span>
 678              </span>
 679          </p>
 680  
 681      </div><!-- /.posttypediv -->
 682      <?php
 683  }
 684  
 685  /**
 686   * Displays a meta box for a taxonomy menu item.
 687   *
 688   * @since 3.0.0
 689   *
 690   * @global int|string $nav_menu_selected_id
 691   *
 692   * @param string $object Not used.
 693   * @param array  $box {
 694   *     Taxonomy menu item meta box arguments.
 695   *
 696   *     @type string   $id       Meta box 'id' attribute.
 697   *     @type string   $title    Meta box title.
 698   *     @type callable $callback Meta box display callback.
 699   *     @type object   $args     Extra meta box arguments (the taxonomy object for this meta box).
 700   * }
 701   */
 702  function wp_nav_menu_item_taxonomy_meta_box( $object, $box ) {
 703      global $nav_menu_selected_id;
 704  
 705      $taxonomy_name = $box['args']->name;
 706      $taxonomy      = get_taxonomy( $taxonomy_name );
 707      $tab_name      = $taxonomy_name . '-tab';
 708  
 709      // Paginate browsing for large numbers of objects.
 710      $per_page = 50;
 711      $pagenum  = isset( $_REQUEST[ $tab_name ] ) && isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 1;
 712      $offset   = 0 < $pagenum ? $per_page * ( $pagenum - 1 ) : 0;
 713  
 714      $args = array(
 715          'taxonomy'     => $taxonomy_name,
 716          'child_of'     => 0,
 717          'exclude'      => '',
 718          'hide_empty'   => false,
 719          'hierarchical' => 1,
 720          'include'      => '',
 721          'number'       => $per_page,
 722          'offset'       => $offset,
 723          'order'        => 'ASC',
 724          'orderby'      => 'name',
 725          'pad_counts'   => false,
 726      );
 727  
 728      $terms = get_terms( $args );
 729  
 730      if ( ! $terms || is_wp_error( $terms ) ) {
 731          echo '<p>' . __( 'No items.' ) . '</p>';
 732          return;
 733      }
 734  
 735      $num_pages = ceil(
 736          wp_count_terms(
 737              array_merge(
 738                  $args,
 739                  array(
 740                      'number' => '',
 741                      'offset' => '',
 742                  )
 743              )
 744          ) / $per_page
 745      );
 746  
 747      $page_links = paginate_links(
 748          array(
 749              'base'               => add_query_arg(
 750                  array(
 751                      $tab_name     => 'all',
 752                      'paged'       => '%#%',
 753                      'item-type'   => 'taxonomy',
 754                      'item-object' => $taxonomy_name,
 755                  )
 756              ),
 757              'format'             => '',
 758              'prev_text'          => '<span aria-label="' . esc_attr__( 'Previous page' ) . '">' . __( '&laquo;' ) . '</span>',
 759              'next_text'          => '<span aria-label="' . esc_attr__( 'Next page' ) . '">' . __( '&raquo;' ) . '</span>',
 760              'before_page_number' => '<span class="screen-reader-text">' . __( 'Page' ) . '</span> ',
 761              'total'              => $num_pages,
 762              'current'            => $pagenum,
 763          )
 764      );
 765  
 766      $db_fields = false;
 767      if ( is_taxonomy_hierarchical( $taxonomy_name ) ) {
 768          $db_fields = array(
 769              'parent' => 'parent',
 770              'id'     => 'term_id',
 771          );
 772      }
 773  
 774      $walker = new Walker_Nav_Menu_Checklist( $db_fields );
 775  
 776      $current_tab = 'most-used';
 777  
 778      if ( isset( $_REQUEST[ $tab_name ] ) && in_array( $_REQUEST[ $tab_name ], array( 'all', 'most-used', 'search' ), true ) ) {
 779          $current_tab = $_REQUEST[ $tab_name ];
 780      }
 781  
 782      if ( ! empty( $_REQUEST[ 'quick-search-taxonomy-' . $taxonomy_name ] ) ) {
 783          $current_tab = 'search';
 784      }
 785  
 786      $removed_args = array(
 787          'action',
 788          'customlink-tab',
 789          'edit-menu-item',
 790          'menu-item',
 791          'page-tab',
 792          '_wpnonce',
 793      );
 794  
 795      $most_used_url = '';
 796      $view_all_url  = '';
 797      $search_url    = '';
 798      if ( $nav_menu_selected_id ) {
 799          $most_used_url = esc_url( add_query_arg( $tab_name, 'most-used', remove_query_arg( $removed_args ) ) );
 800          $view_all_url  = esc_url( add_query_arg( $tab_name, 'all', remove_query_arg( $removed_args ) ) );
 801          $search_url    = esc_url( add_query_arg( $tab_name, 'search', remove_query_arg( $removed_args ) ) );
 802      }
 803      ?>
 804      <div id="taxonomy-<?php echo $taxonomy_name; ?>" class="taxonomydiv">
 805          <ul id="taxonomy-<?php echo $taxonomy_name; ?>-tabs" class="taxonomy-tabs add-menu-item-tabs">
 806              <li <?php echo ( 'most-used' === $current_tab ? ' class="tabs"' : '' ); ?>>
 807                  <a class="nav-tab-link" data-type="tabs-panel-<?php echo esc_attr( $taxonomy_name ); ?>-pop" href="<?php echo $most_used_url; ?>#tabs-panel-<?php echo $taxonomy_name; ?>-pop">
 808                      <?php echo esc_html( $taxonomy->labels->most_used ); ?>
 809                  </a>
 810              </li>
 811              <li <?php echo ( 'all' === $current_tab ? ' class="tabs"' : '' ); ?>>
 812                  <a class="nav-tab-link" data-type="tabs-panel-<?php echo esc_attr( $taxonomy_name ); ?>-all" href="<?php echo $view_all_url; ?>#tabs-panel-<?php echo $taxonomy_name; ?>-all">
 813                      <?php _e( 'View All' ); ?>
 814                  </a>
 815              </li>
 816              <li <?php echo ( 'search' === $current_tab ? ' class="tabs"' : '' ); ?>>
 817                  <a class="nav-tab-link" data-type="tabs-panel-search-taxonomy-<?php echo esc_attr( $taxonomy_name ); ?>" href="<?php echo $search_url; ?>#tabs-panel-search-taxonomy-<?php echo $taxonomy_name; ?>">
 818                      <?php _e( 'Search' ); ?>
 819                  </a>
 820              </li>
 821          </ul><!-- .taxonomy-tabs -->
 822  
 823          <div id="tabs-panel-<?php echo $taxonomy_name; ?>-pop" class="tabs-panel <?php echo ( 'most-used' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" role="region" aria-label="<?php echo $taxonomy->labels->most_used; ?>" tabindex="0">
 824              <ul id="<?php echo $taxonomy_name; ?>checklist-pop" class="categorychecklist form-no-clear" >
 825                  <?php
 826                  $popular_terms  = get_terms(
 827                      array(
 828                          'taxonomy'     => $taxonomy_name,
 829                          'orderby'      => 'count',
 830                          'order'        => 'DESC',
 831                          'number'       => 10,
 832                          'hierarchical' => false,
 833                      )
 834                  );
 835                  $args['walker'] = $walker;
 836                  echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $popular_terms ), 0, (object) $args );
 837                  ?>
 838              </ul>
 839          </div><!-- /.tabs-panel -->
 840  
 841          <div id="tabs-panel-<?php echo $taxonomy_name; ?>-all" class="tabs-panel tabs-panel-view-all <?php echo ( 'all' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" role="region" aria-label="<?php echo $taxonomy->labels->all_items; ?>" tabindex="0">
 842              <?php if ( ! empty( $page_links ) ) : ?>
 843                  <div class="add-menu-item-pagelinks">
 844                      <?php echo $page_links; ?>
 845                  </div>
 846              <?php endif; ?>
 847              <ul id="<?php echo $taxonomy_name; ?>checklist" data-wp-lists="list:<?php echo $taxonomy_name; ?>" class="categorychecklist form-no-clear">
 848                  <?php
 849                  $args['walker'] = $walker;
 850                  echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $terms ), 0, (object) $args );
 851                  ?>
 852              </ul>
 853              <?php if ( ! empty( $page_links ) ) : ?>
 854                  <div class="add-menu-item-pagelinks">
 855                      <?php echo $page_links; ?>
 856                  </div>
 857              <?php endif; ?>
 858          </div><!-- /.tabs-panel -->
 859  
 860          <div class="tabs-panel <?php echo ( 'search' === $current_tab ? 'tabs-panel-active' : 'tabs-panel-inactive' ); ?>" id="tabs-panel-search-taxonomy-<?php echo $taxonomy_name; ?>" role="region" aria-label="<?php echo $taxonomy->labels->search_items; ?>" tabindex="0">
 861              <?php
 862              if ( isset( $_REQUEST[ 'quick-search-taxonomy-' . $taxonomy_name ] ) ) {
 863                  $searched       = esc_attr( $_REQUEST[ 'quick-search-taxonomy-' . $taxonomy_name ] );
 864                  $search_results = get_terms(
 865                      array(
 866                          'taxonomy'     => $taxonomy_name,
 867                          'name__like'   => $searched,
 868                          'fields'       => 'all',
 869                          'orderby'      => 'count',
 870                          'order'        => 'DESC',
 871                          'hierarchical' => false,
 872                      )
 873                  );
 874              } else {
 875                  $searched       = '';
 876                  $search_results = array();
 877              }
 878              ?>
 879              <p class="quick-search-wrap">
 880                  <label for="quick-search-taxonomy-<?php echo $taxonomy_name; ?>" class="screen-reader-text"><?php _e( 'Search' ); ?></label>
 881                  <input type="search" class="quick-search" value="<?php echo $searched; ?>" name="quick-search-taxonomy-<?php echo $taxonomy_name; ?>" id="quick-search-taxonomy-<?php echo $taxonomy_name; ?>" />
 882                  <span class="spinner"></span>
 883                  <?php submit_button( __( 'Search' ), 'small quick-search-submit hide-if-js', 'submit', false, array( 'id' => 'submit-quick-search-taxonomy-' . $taxonomy_name ) ); ?>
 884              </p>
 885  
 886              <ul id="<?php echo $taxonomy_name; ?>-search-checklist" data-wp-lists="list:<?php echo $taxonomy_name; ?>" class="categorychecklist form-no-clear">
 887              <?php if ( ! empty( $search_results ) && ! is_wp_error( $search_results ) ) : ?>
 888                  <?php
 889                  $args['walker'] = $walker;
 890                  echo walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $search_results ), 0, (object) $args );
 891                  ?>
 892              <?php elseif ( is_wp_error( $search_results ) ) : ?>
 893                  <li><?php echo $search_results->get_error_message(); ?></li>
 894              <?php elseif ( ! empty( $searched ) ) : ?>
 895                  <li><?php _e( 'No results found.' ); ?></li>
 896              <?php endif; ?>
 897              </ul>
 898          </div><!-- /.tabs-panel -->
 899  
 900          <p class="button-controls wp-clearfix" data-items-type="taxonomy-<?php echo esc_attr( $taxonomy_name ); ?>">
 901              <span class="list-controls hide-if-no-js">
 902                  <input type="checkbox"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> id="<?php echo esc_attr( $tab_name ); ?>" class="select-all" />
 903                  <label for="<?php echo esc_attr( $tab_name ); ?>"><?php _e( 'Select All' ); ?></label>
 904              </span>
 905  
 906              <span class="add-to-menu">
 907                  <input type="submit"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="button submit-add-to-menu right" value="<?php esc_attr_e( 'Add to Menu' ); ?>" name="add-taxonomy-menu-item" id="<?php echo esc_attr( 'submit-taxonomy-' . $taxonomy_name ); ?>" />
 908                  <span class="spinner"></span>
 909              </span>
 910          </p>
 911  
 912      </div><!-- /.taxonomydiv -->
 913      <?php
 914  }
 915  
 916  /**
 917   * Save posted nav menu item data.
 918   *
 919   * @since 3.0.0
 920   *
 921   * @param int     $menu_id   The menu ID for which to save this item. Value of 0 makes a draft, orphaned menu item. Default 0.
 922   * @param array[] $menu_data The unsanitized POSTed menu item data.
 923   * @return int[] The database IDs of the items saved
 924   */
 925  function wp_save_nav_menu_items( $menu_id = 0, $menu_data = array() ) {
 926      $menu_id     = (int) $menu_id;
 927      $items_saved = array();
 928  
 929      if ( 0 == $menu_id || is_nav_menu( $menu_id ) ) {
 930  
 931          // Loop through all the menu items' POST values.
 932          foreach ( (array) $menu_data as $_possible_db_id => $_item_object_data ) {
 933              if (
 934                  // Checkbox is not checked.
 935                  empty( $_item_object_data['menu-item-object-id'] ) &&
 936                  (
 937                      // And item type either isn't set.
 938                      ! isset( $_item_object_data['menu-item-type'] ) ||
 939                      // Or URL is the default.
 940                      in_array( $_item_object_data['menu-item-url'], array( 'https://', 'http://', '' ), true ) ||
 941                      // Or it's not a custom menu item (but not the custom home page).
 942                      ! ( 'custom' === $_item_object_data['menu-item-type'] && ! isset( $_item_object_data['menu-item-db-id'] ) ) ||
 943                      // Or it *is* a custom menu item that already exists.
 944                      ! empty( $_item_object_data['menu-item-db-id'] )
 945                  )
 946              ) {
 947                  // Then this potential menu item is not getting added to this menu.
 948                  continue;
 949              }
 950  
 951              // If this possible menu item doesn't actually have a menu database ID yet.
 952              if (
 953                  empty( $_item_object_data['menu-item-db-id'] ) ||
 954                  ( 0 > $_possible_db_id ) ||
 955                  $_possible_db_id != $_item_object_data['menu-item-db-id']
 956              ) {
 957                  $_actual_db_id = 0;
 958              } else {
 959                  $_actual_db_id = (int) $_item_object_data['menu-item-db-id'];
 960              }
 961  
 962              $args = array(
 963                  'menu-item-db-id'       => ( isset( $_item_object_data['menu-item-db-id'] ) ? $_item_object_data['menu-item-db-id'] : '' ),
 964                  'menu-item-object-id'   => ( isset( $_item_object_data['menu-item-object-id'] ) ? $_item_object_data['menu-item-object-id'] : '' ),
 965                  'menu-item-object'      => ( isset( $_item_object_data['menu-item-object'] ) ? $_item_object_data['menu-item-object'] : '' ),
 966                  'menu-item-parent-id'   => ( isset( $_item_object_data['menu-item-parent-id'] ) ? $_item_object_data['menu-item-parent-id'] : '' ),
 967                  'menu-item-position'    => ( isset( $_item_object_data['menu-item-position'] ) ? $_item_object_data['menu-item-position'] : '' ),
 968                  'menu-item-type'        => ( isset( $_item_object_data['menu-item-type'] ) ? $_item_object_data['menu-item-type'] : '' ),
 969                  'menu-item-title'       => ( isset( $_item_object_data['menu-item-title'] ) ? $_item_object_data['menu-item-title'] : '' ),
 970                  'menu-item-url'         => ( isset( $_item_object_data['menu-item-url'] ) ? $_item_object_data['menu-item-url'] : '' ),
 971                  'menu-item-description' => ( isset( $_item_object_data['menu-item-description'] ) ? $_item_object_data['menu-item-description'] : '' ),
 972                  'menu-item-attr-title'  => ( isset( $_item_object_data['menu-item-attr-title'] ) ? $_item_object_data['menu-item-attr-title'] : '' ),
 973                  'menu-item-target'      => ( isset( $_item_object_data['menu-item-target'] ) ? $_item_object_data['menu-item-target'] : '' ),
 974                  'menu-item-classes'     => ( isset( $_item_object_data['menu-item-classes'] ) ? $_item_object_data['menu-item-classes'] : '' ),
 975                  'menu-item-xfn'         => ( isset( $_item_object_data['menu-item-xfn'] ) ? $_item_object_data['menu-item-xfn'] : '' ),
 976              );
 977  
 978              $items_saved[] = wp_update_nav_menu_item( $menu_id, $_actual_db_id, $args );
 979  
 980          }
 981      }
 982      return $items_saved;
 983  }
 984  
 985  /**
 986   * Adds custom arguments to some of the meta box object types.
 987   *
 988   * @since 3.0.0
 989   *
 990   * @access private
 991   *
 992   * @param object $object The post type or taxonomy meta-object.
 993   * @return object The post type or taxonomy object.
 994   */
 995  function _wp_nav_menu_meta_box_object( $object = null ) {
 996      if ( isset( $object->name ) ) {
 997  
 998          if ( 'page' === $object->name ) {
 999              $object->_default_query = array(
1000                  'orderby'     => 'menu_order title',
1001                  'post_status' => 'publish',
1002              );
1003  
1004              // Posts should show only published items.
1005          } elseif ( 'post' === $object->name ) {
1006              $object->_default_query = array(
1007                  'post_status' => 'publish',
1008              );
1009  
1010              // Categories should be in reverse chronological order.
1011          } elseif ( 'category' === $object->name ) {
1012              $object->_default_query = array(
1013                  'orderby' => 'id',
1014                  'order'   => 'DESC',
1015              );
1016  
1017              // Custom post types should show only published items.
1018          } else {
1019              $object->_default_query = array(
1020                  'post_status' => 'publish',
1021              );
1022          }
1023      }
1024  
1025      return $object;
1026  }
1027  
1028  /**
1029   * Returns the menu formatted to edit.
1030   *
1031   * @since 3.0.0
1032   *
1033   * @param int $menu_id Optional. The ID of the menu to format. Default 0.
1034   * @return string|WP_Error The menu formatted to edit or error object on failure.
1035   */
1036  function wp_get_nav_menu_to_edit( $menu_id = 0 ) {
1037      $menu = wp_get_nav_menu_object( $menu_id );
1038  
1039      // If the menu exists, get its items.
1040      if ( is_nav_menu( $menu ) ) {
1041          $menu_items = wp_get_nav_menu_items( $menu->term_id, array( 'post_status' => 'any' ) );
1042          $result     = '<div id="menu-instructions" class="post-body-plain';
1043          $result    .= ( ! empty( $menu_items ) ) ? ' menu-instructions-inactive">' : '">';
1044          $result    .= '<p>' . __( 'Add menu items from the column on the left.' ) . '</p>';
1045          $result    .= '</div>';
1046  
1047          if ( empty( $menu_items ) ) {
1048              return $result . ' <ul class="menu" id="menu-to-edit"> </ul>';
1049          }
1050  
1051          /**
1052           * Filters the Walker class used when adding nav menu items.
1053           *
1054           * @since 3.0.0
1055           *
1056           * @param string $class   The walker class to use. Default 'Walker_Nav_Menu_Edit'.
1057           * @param int    $menu_id ID of the menu being rendered.
1058           */
1059          $walker_class_name = apply_filters( 'wp_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $menu_id );
1060  
1061          if ( class_exists( $walker_class_name ) ) {
1062              $walker = new $walker_class_name;
1063          } else {
1064              return new WP_Error(
1065                  'menu_walker_not_exist',
1066                  sprintf(
1067                      /* translators: %s: Walker class name. */
1068                      __( 'The Walker class named %s does not exist.' ),
1069                      '<strong>' . $walker_class_name . '</strong>'
1070                  )
1071              );
1072          }
1073  
1074          $some_pending_menu_items = false;
1075          $some_invalid_menu_items = false;
1076          foreach ( (array) $menu_items as $menu_item ) {
1077              if ( isset( $menu_item->post_status ) && 'draft' === $menu_item->post_status ) {
1078                  $some_pending_menu_items = true;
1079              }
1080              if ( ! empty( $menu_item->_invalid ) ) {
1081                  $some_invalid_menu_items = true;
1082              }
1083          }
1084  
1085          if ( $some_pending_menu_items ) {
1086              $result .= '<div class="notice notice-info notice-alt inline"><p>' . __( 'Click Save Menu to make pending menu items public.' ) . '</p></div>';
1087          }
1088  
1089          if ( $some_invalid_menu_items ) {
1090              $result .= '<div class="notice notice-error notice-alt inline"><p>' . __( 'There are some invalid menu items. Please check or delete them.' ) . '</p></div>';
1091          }
1092  
1093          $result .= '<ul class="menu" id="menu-to-edit"> ';
1094          $result .= walk_nav_menu_tree( array_map( 'wp_setup_nav_menu_item', $menu_items ), 0, (object) array( 'walker' => $walker ) );
1095          $result .= ' </ul> ';
1096          return $result;
1097      } elseif ( is_wp_error( $menu ) ) {
1098          return $menu;
1099      }
1100  
1101  }
1102  
1103  /**
1104   * Returns the columns for the nav menus page.
1105   *
1106   * @since 3.0.0
1107   *
1108   * @return string[] Array of column titles keyed by their column name.
1109   */
1110  function wp_nav_menu_manage_columns() {
1111      return array(
1112          '_title'          => __( 'Show advanced menu properties' ),
1113          'cb'              => '<input type="checkbox" />',
1114          'link-target'     => __( 'Link Target' ),
1115          'title-attribute' => __( 'Title Attribute' ),
1116          'css-classes'     => __( 'CSS Classes' ),
1117          'xfn'             => __( 'Link Relationship (XFN)' ),
1118          'description'     => __( 'Description' ),
1119      );
1120  }
1121  
1122  /**
1123   * Deletes orphaned draft menu items
1124   *
1125   * @access private
1126   * @since 3.0.0
1127   *
1128   * @global wpdb $wpdb WordPress database abstraction object.
1129   */
1130  function _wp_delete_orphaned_draft_menu_items() {
1131      global $wpdb;
1132      $delete_timestamp = time() - ( DAY_IN_SECONDS * EMPTY_TRASH_DAYS );
1133  
1134      // Delete orphaned draft menu items.
1135      $menu_items_to_delete = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts AS p LEFT JOIN $wpdb->postmeta AS m ON p.ID = m.post_id WHERE post_type = 'nav_menu_item' AND post_status = 'draft' AND meta_key = '_menu_item_orphaned' AND meta_value < %d", $delete_timestamp ) );
1136  
1137      foreach ( (array) $menu_items_to_delete as $menu_item_id ) {
1138          wp_delete_post( $menu_item_id, true );
1139      }
1140  }
1141  
1142  /**
1143   * Saves nav menu items
1144   *
1145   * @since 3.6.0
1146   *
1147   * @param int|string $nav_menu_selected_id    ID, slug, or name of the currently-selected menu.
1148   * @param string     $nav_menu_selected_title Title of the currently-selected menu.
1149   * @return array The menu updated message
1150   */
1151  function wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title ) {
1152      $unsorted_menu_items = wp_get_nav_menu_items(
1153          $nav_menu_selected_id,
1154          array(
1155              'orderby'     => 'ID',
1156              'output'      => ARRAY_A,
1157              'output_key'  => 'ID',
1158              'post_status' => 'draft,publish',
1159          )
1160      );
1161  
1162      $messages   = array();
1163      $menu_items = array();
1164  
1165      // Index menu items by DB ID.
1166      foreach ( $unsorted_menu_items as $_item ) {
1167          $menu_items[ $_item->db_id ] = $_item;
1168      }
1169  
1170      $post_fields = array(
1171          'menu-item-db-id',
1172          'menu-item-object-id',
1173          'menu-item-object',
1174          'menu-item-parent-id',
1175          'menu-item-position',
1176          'menu-item-type',
1177          'menu-item-title',
1178          'menu-item-url',
1179          'menu-item-description',
1180          'menu-item-attr-title',
1181          'menu-item-target',
1182          'menu-item-classes',
1183          'menu-item-xfn',
1184      );
1185  
1186      wp_defer_term_counting( true );
1187  
1188      // Loop through all the menu items' POST variables.
1189      if ( ! empty( $_POST['menu-item-db-id'] ) ) {
1190          foreach ( (array) $_POST['menu-item-db-id'] as $_key => $k ) {
1191  
1192              // Menu item title can't be blank.
1193              if ( ! isset( $_POST['menu-item-title'][ $_key ] ) || '' === $_POST['menu-item-title'][ $_key ] ) {
1194                  continue;
1195              }
1196  
1197              $args = array();
1198              foreach ( $post_fields as $field ) {
1199                  $args[ $field ] = isset( $_POST[ $field ][ $_key ] ) ? $_POST[ $field ][ $_key ] : '';
1200              }
1201  
1202              $menu_item_db_id = wp_update_nav_menu_item( $nav_menu_selected_id, ( $_POST['menu-item-db-id'][ $_key ] != $_key ? 0 : $_key ), $args );
1203  
1204              if ( is_wp_error( $menu_item_db_id ) ) {
1205                  $messages[] = '<div id="message" class="error"><p>' . $menu_item_db_id->get_error_message() . '</p></div>';
1206              } else {
1207                  unset( $menu_items[ $menu_item_db_id ] );
1208              }
1209          }
1210      }
1211  
1212      // Remove menu items from the menu that weren't in $_POST.
1213      if ( ! empty( $menu_items ) ) {
1214          foreach ( array_keys( $menu_items ) as $menu_item_id ) {
1215              if ( is_nav_menu_item( $menu_item_id ) ) {
1216                  wp_delete_post( $menu_item_id );
1217              }
1218          }
1219      }
1220  
1221      // Store 'auto-add' pages.
1222      $auto_add        = ! empty( $_POST['auto-add-pages'] );
1223      $nav_menu_option = (array) get_option( 'nav_menu_options' );
1224  
1225      if ( ! isset( $nav_menu_option['auto_add'] ) ) {
1226          $nav_menu_option['auto_add'] = array();
1227      }
1228  
1229      if ( $auto_add ) {
1230          if ( ! in_array( $nav_menu_selected_id, $nav_menu_option['auto_add'], true ) ) {
1231              $nav_menu_option['auto_add'][] = $nav_menu_selected_id;
1232          }
1233      } else {
1234          $key = array_search( $nav_menu_selected_id, $nav_menu_option['auto_add'], true );
1235          if ( false !== $key ) {
1236              unset( $nav_menu_option['auto_add'][ $key ] );
1237          }
1238      }
1239  
1240      // Remove non-existent/deleted menus.
1241      $nav_menu_option['auto_add'] = array_intersect( $nav_menu_option['auto_add'], wp_get_nav_menus( array( 'fields' => 'ids' ) ) );
1242      update_option( 'nav_menu_options', $nav_menu_option );
1243  
1244      wp_defer_term_counting( false );
1245  
1246      /** This action is documented in wp-includes/nav-menu.php */
1247      do_action( 'wp_update_nav_menu', $nav_menu_selected_id );
1248  
1249      $messages[] = '<div id="message" class="updated notice is-dismissible"><p>' .
1250          sprintf(
1251              /* translators: %s: Nav menu title. */
1252              __( '%s has been updated.' ),
1253              '<strong>' . $nav_menu_selected_title . '</strong>'
1254          ) . '</p></div>';
1255  
1256      unset( $menu_items, $unsorted_menu_items );
1257  
1258      return $messages;
1259  }
1260  
1261  /**
1262   * If a JSON blob of navigation menu data is in POST data, expand it and inject
1263   * it into `$_POST` to avoid PHP `max_input_vars` limitations. See #14134.
1264   *
1265   * @ignore
1266   * @since 4.5.3
1267   * @access private
1268   */
1269  function _wp_expand_nav_menu_post_data() {
1270      if ( ! isset( $_POST['nav-menu-data'] ) ) {
1271          return;
1272      }
1273  
1274      $data = json_decode( stripslashes( $_POST['nav-menu-data'] ) );
1275  
1276      if ( ! is_null( $data ) && $data ) {
1277          foreach ( $data as $post_input_data ) {
1278              // For input names that are arrays (e.g. `menu-item-db-id[3][4][5]`),
1279              // derive the array path keys via regex and set the value in $_POST.
1280              preg_match( '#([^\[]*)(\[(.+)\])?#', $post_input_data->name, $matches );
1281  
1282              $array_bits = array( $matches[1] );
1283  
1284              if ( isset( $matches[3] ) ) {
1285                  $array_bits = array_merge( $array_bits, explode( '][', $matches[3] ) );
1286              }
1287  
1288              $new_post_data = array();
1289  
1290              // Build the new array value from leaf to trunk.
1291              for ( $i = count( $array_bits ) - 1; $i >= 0; $i-- ) {
1292                  if ( count( $array_bits ) - 1 == $i ) {
1293                      $new_post_data[ $array_bits[ $i ] ] = wp_slash( $post_input_data->value );
1294                  } else {
1295                      $new_post_data = array( $array_bits[ $i ] => $new_post_data );
1296                  }
1297              }
1298  
1299              $_POST = array_replace_recursive( $_POST, $new_post_data );
1300          }
1301      }
1302  }


Generated: Sun Oct 17 01:00:03 2021 Cross-referenced by PHPXref 0.7.1