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


Generated: Mon Jun 17 08:20:02 2019 Cross-referenced by PHPXref 0.7