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Source: /wp-admin/nav-menus.php - 607 lines - 27739 bytes - Summary - Text - Print

Description: WordPress Administration for Navigation Menus Interface functions

   1  <?php
   2  /**
   3   * WordPress Administration for Navigation Menus
   4   * Interface functions
   5   *
   6   * @version 2.0.0
   7   *
   8   * @package WordPress
   9   * @subpackage Administration
  10   */
  11  
  12  /** Load WordPress Administration Bootstrap */
  13  require_once ( './admin.php' );
  14  
  15  // Load all the nav menu interface functions
  16  require_once ( ABSPATH . 'wp-admin/includes/nav-menu.php' );
  17  
  18  if ( ! current_theme_supports( 'menus' ) && ! current_theme_supports( 'widgets' ) )
  19      wp_die( __( 'Your theme does not support navigation menus or widgets.' ) );
  20  
  21  // Permissions Check
  22  if ( ! current_user_can('edit_theme_options') )
  23      wp_die( __( 'Cheatin&#8217; uh?' ) );
  24  
  25  wp_enqueue_script( 'nav-menu' );
  26  
  27  if ( wp_is_mobile() )
  28      wp_enqueue_script( 'jquery-touch-punch' );
  29  
  30  // Container for any messages displayed to the user
  31  $messages = array();
  32  
  33  // Container that stores the name of the active menu
  34  $nav_menu_selected_title = '';
  35  
  36  // The menu id of the current menu being edited
  37  $nav_menu_selected_id = isset( $_REQUEST['menu'] ) ? (int) $_REQUEST['menu'] : 0;
  38  
  39  // Allowed actions: add, update, delete
  40  $action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'edit';
  41  
  42  switch ( $action ) {
  43      case 'add-menu-item':
  44          check_admin_referer( 'add-menu_item', 'menu-settings-column-nonce' );
  45          if ( isset( $_REQUEST['nav-menu-locations'] ) )
  46              set_theme_mod( 'nav_menu_locations', array_map( 'absint', $_REQUEST['menu-locations'] ) );
  47          elseif ( isset( $_REQUEST['menu-item'] ) )
  48              wp_save_nav_menu_items( $nav_menu_selected_id, $_REQUEST['menu-item'] );
  49          break;
  50      case 'move-down-menu-item' :
  51          // moving down a menu item is the same as moving up the next in order
  52          check_admin_referer( 'move-menu_item' );
  53          $menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;
  54          if ( is_nav_menu_item( $menu_item_id ) ) {
  55              $menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
  56              if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {
  57                  $menu_id = (int) $menus[0];
  58                  $ordered_menu_items = wp_get_nav_menu_items( $menu_id );
  59                  $menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );
  60  
  61                  // set up the data we need in one pass through the array of menu items
  62                  $dbids_to_orders = array();
  63                  $orders_to_dbids = array();
  64                  foreach( (array) $ordered_menu_items as $ordered_menu_item_object ) {
  65                      if ( isset( $ordered_menu_item_object->ID ) ) {
  66                          if ( isset( $ordered_menu_item_object->menu_order ) ) {
  67                              $dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order;
  68                              $orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID;
  69                          }
  70                      }
  71                  }
  72  
  73                  // get next in order
  74                  if (
  75                      isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1] )
  76                  ) {
  77                      $next_item_id = $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1];
  78                      $next_item_data = (array) wp_setup_nav_menu_item( get_post( $next_item_id ) );
  79  
  80                      // if not siblings of same parent, bubble menu item up but keep order
  81                      if (
  82                          ! empty( $menu_item_data['menu_item_parent'] ) &&
  83                          (
  84                              empty( $next_item_data['menu_item_parent'] ) ||
  85                              $next_item_data['menu_item_parent'] != $menu_item_data['menu_item_parent']
  86                          )
  87                      ) {
  88  
  89                          $parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0;
  90  
  91                          $parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );
  92  
  93                          if ( ! is_wp_error( $parent_object ) ) {
  94                              $parent_data = (array) $parent_object;
  95                              $menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];
  96                              update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
  97  
  98                          }
  99  
 100                      // make menu item a child of its next sibling
 101                      } else {
 102                          $next_item_data['menu_order'] = $next_item_data['menu_order'] - 1;
 103                          $menu_item_data['menu_order'] = $menu_item_data['menu_order'] + 1;
 104  
 105                          $menu_item_data['menu_item_parent'] = $next_item_data['ID'];
 106                          update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 107  
 108                          wp_update_post($menu_item_data);
 109                          wp_update_post($next_item_data);
 110                      }
 111  
 112                  // the item is last but still has a parent, so bubble up
 113                  } elseif (
 114                      ! empty( $menu_item_data['menu_item_parent'] ) &&
 115                      in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids )
 116                  ) {
 117                      $menu_item_data['menu_item_parent'] = (int) get_post_meta( $menu_item_data['menu_item_parent'], '_menu_item_menu_item_parent', true);
 118                      update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 119                  }
 120              }
 121          }
 122  
 123          break;
 124      case 'move-up-menu-item' :
 125          check_admin_referer( 'move-menu_item' );
 126          $menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;
 127          if ( is_nav_menu_item( $menu_item_id ) ) {
 128              $menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
 129              if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {
 130                  $menu_id = (int) $menus[0];
 131                  $ordered_menu_items = wp_get_nav_menu_items( $menu_id );
 132                  $menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );
 133  
 134                  // set up the data we need in one pass through the array of menu items
 135                  $dbids_to_orders = array();
 136                  $orders_to_dbids = array();
 137                  foreach( (array) $ordered_menu_items as $ordered_menu_item_object ) {
 138                      if ( isset( $ordered_menu_item_object->ID ) ) {
 139                          if ( isset( $ordered_menu_item_object->menu_order ) ) {
 140                              $dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order;
 141                              $orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID;
 142                          }
 143                      }
 144                  }
 145  
 146                  // if this menu item is not first
 147                  if ( ! empty( $dbids_to_orders[$menu_item_id] ) && ! empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ) {
 148  
 149                      // if this menu item is a child of the previous
 150                      if (
 151                          ! empty( $menu_item_data['menu_item_parent'] ) &&
 152                          in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) &&
 153                          isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) &&
 154                          ( $menu_item_data['menu_item_parent'] == $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] )
 155                      ) {
 156                          $parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0;
 157                          $parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );
 158  
 159                          if ( ! is_wp_error( $parent_object ) ) {
 160                              $parent_data = (array) $parent_object;
 161  
 162                              // if there is something before the parent and parent a child of it, make menu item a child also of it
 163                              if (
 164                                  ! empty( $dbids_to_orders[$parent_db_id] ) &&
 165                                  ! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] ) &&
 166                                  ! empty( $parent_data['menu_item_parent'] )
 167                              ) {
 168                                  $menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];
 169  
 170                              // else if there is something before parent and parent not a child of it, make menu item a child of that something's parent
 171                              } elseif (
 172                                  ! empty( $dbids_to_orders[$parent_db_id] ) &&
 173                                  ! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] )
 174                              ) {
 175                                  $_possible_parent_id = (int) get_post_meta( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1], '_menu_item_menu_item_parent', true);
 176                                  if ( in_array( $_possible_parent_id, array_keys( $dbids_to_orders ) ) )
 177                                      $menu_item_data['menu_item_parent'] = $_possible_parent_id;
 178                                  else
 179                                      $menu_item_data['menu_item_parent'] = 0;
 180  
 181                              // else there isn't something before the parent
 182                              } else {
 183                                  $menu_item_data['menu_item_parent'] = 0;
 184                              }
 185  
 186                              // set former parent's [menu_order] to that of menu-item's
 187                              $parent_data['menu_order'] = $parent_data['menu_order'] + 1;
 188  
 189                              // set menu-item's [menu_order] to that of former parent
 190                              $menu_item_data['menu_order'] = $menu_item_data['menu_order'] - 1;
 191  
 192                              // save changes
 193                              update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 194                              wp_update_post($menu_item_data);
 195                              wp_update_post($parent_data);
 196                          }
 197  
 198                      // else this menu item is not a child of the previous
 199                      } elseif (
 200                          empty( $menu_item_data['menu_order'] ) ||
 201                          empty( $menu_item_data['menu_item_parent'] ) ||
 202                          ! in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) ||
 203                          empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ||
 204                          $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] != $menu_item_data['menu_item_parent']
 205                      ) {
 206                          // just make it a child of the previous; keep the order
 207                          $menu_item_data['menu_item_parent'] = (int) $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1];
 208                          update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 209                          wp_update_post($menu_item_data);
 210                      }
 211                  }
 212              }
 213          }
 214          break;
 215  
 216      case 'delete-menu-item':
 217          $menu_item_id = (int) $_REQUEST['menu-item'];
 218  
 219          check_admin_referer( 'delete-menu_item_' . $menu_item_id );
 220  
 221          if ( is_nav_menu_item( $menu_item_id ) && wp_delete_post( $menu_item_id, true ) )
 222              $messages[] = '<div id="message" class="updated"><p>' . __('The menu item has been successfully deleted.') . '</p></div>';
 223          break;
 224      case 'delete':
 225          check_admin_referer( 'delete-nav_menu-' . $nav_menu_selected_id );
 226  
 227          if ( is_nav_menu( $nav_menu_selected_id ) ) {
 228              $deleted_nav_menu = wp_get_nav_menu_object( $nav_menu_selected_id );
 229              $delete_nav_menu = wp_delete_nav_menu( $nav_menu_selected_id );
 230  
 231              if ( is_wp_error($delete_nav_menu) ) {
 232                  $messages[] = '<div id="message" class="error"><p>' . $delete_nav_menu->get_error_message() . '</p></div>';
 233              } else {
 234                  // Remove this menu from any locations.
 235                  $locations = get_theme_mod( 'nav_menu_locations' );
 236                  foreach ( (array) $locations as $location => $menu_id ) {
 237                      if ( $menu_id == $nav_menu_selected_id )
 238                          $locations[ $location ] = 0;
 239                  }
 240                  set_theme_mod( 'nav_menu_locations', $locations );
 241                  $messages[] = '<div id="message" class="updated"><p>' . __('The menu has been successfully deleted.') . '</p></div>';
 242                  // Select the next available menu
 243                  $nav_menu_selected_id = 0;
 244                  $_nav_menus = wp_get_nav_menus( array('orderby' => 'name') );
 245                  foreach( $_nav_menus as $index => $_nav_menu ) {
 246                      if ( strcmp( $_nav_menu->name, $deleted_nav_menu->name ) >= 0
 247                       || $index == count( $_nav_menus ) - 1 ) {
 248                          $nav_menu_selected_id = $_nav_menu->term_id;
 249                          break;
 250                      }
 251                  }
 252              }
 253              unset( $delete_nav_menu, $deleted_nav_menu, $_nav_menus );
 254          } else {
 255              // Reset the selected menu
 256              $nav_menu_selected_id = 0;
 257              unset( $_REQUEST['menu'] );
 258          }
 259          break;
 260  
 261      case 'update':
 262          check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );
 263  
 264          // Update menu theme locations
 265          if ( isset( $_POST['menu-locations'] ) )
 266              set_theme_mod( 'nav_menu_locations', array_map( 'absint', $_POST['menu-locations'] ) );
 267  
 268          // Add Menu
 269          if ( 0 == $nav_menu_selected_id ) {
 270              $new_menu_title = trim( esc_html( $_POST['menu-name'] ) );
 271  
 272              if ( $new_menu_title ) {
 273                  $_nav_menu_selected_id = wp_update_nav_menu_object( 0, array('menu-name' => $new_menu_title) );
 274  
 275                  if ( is_wp_error( $_nav_menu_selected_id ) ) {
 276                      $messages[] = '<div id="message" class="error"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
 277                  } else {
 278                      $_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );
 279                      $nav_menu_selected_id = $_nav_menu_selected_id;
 280                      $nav_menu_selected_title = $_menu_object->name;
 281                      $messages[] = '<div id="message" class="updated"><p>' . sprintf( __('The <strong>%s</strong> menu has been successfully created.'), $nav_menu_selected_title ) . '</p></div>';
 282                  }
 283              } else {
 284                  $messages[] = '<div id="message" class="error"><p>' . __('Please enter a valid menu name.') . '</p></div>';
 285              }
 286  
 287          // update existing menu
 288          } else {
 289  
 290              $_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
 291  
 292              $menu_title = trim( esc_html( $_POST['menu-name'] ) );
 293              if ( ! $menu_title ) {
 294                  $messages[] = '<div id="message" class="error"><p>' . __('Please enter a valid menu name.') . '</p></div>';
 295                  $menu_title = $_menu_object->name;
 296              }
 297  
 298              if ( ! is_wp_error( $_menu_object ) ) {
 299                  $_nav_menu_selected_id = wp_update_nav_menu_object( $nav_menu_selected_id, array( 'menu-name' => $menu_title ) );
 300                  if ( is_wp_error( $_nav_menu_selected_id ) ) {
 301                      $_menu_object = $_nav_menu_selected_id;
 302                      $messages[] = '<div id="message" class="error"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
 303                  } else {
 304                      $_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );
 305                      $nav_menu_selected_title = $_menu_object->name;
 306                  }
 307              }
 308  
 309              // Update menu items
 310  
 311              if ( ! is_wp_error( $_menu_object ) ) {
 312                  $unsorted_menu_items = wp_get_nav_menu_items( $nav_menu_selected_id, array('orderby' => 'ID', 'output' => ARRAY_A, 'output_key' => 'ID', 'post_status' => 'draft,publish') );
 313                  $menu_items = array();
 314                  // Index menu items by db ID
 315                  foreach( $unsorted_menu_items as $_item )
 316                      $menu_items[$_item->db_id] = $_item;
 317  
 318                  $post_fields = array( 'menu-item-db-id', 'menu-item-object-id', 'menu-item-object', 'menu-item-parent-id', 'menu-item-position', 'menu-item-type', 'menu-item-title', 'menu-item-url', 'menu-item-description', 'menu-item-attr-title', 'menu-item-target', 'menu-item-classes', 'menu-item-xfn' );
 319                  wp_defer_term_counting(true);
 320                  // Loop through all the menu items' POST variables
 321                  if ( ! empty( $_POST['menu-item-db-id'] ) ) {
 322                      foreach( (array) $_POST['menu-item-db-id'] as $_key => $k ) {
 323  
 324                          // Menu item title can't be blank
 325                          if ( empty( $_POST['menu-item-title'][$_key] ) )
 326                              continue;
 327  
 328                          $args = array();
 329                          foreach ( $post_fields as $field )
 330                              $args[$field] = isset( $_POST[$field][$_key] ) ? $_POST[$field][$_key] : '';
 331  
 332                          $menu_item_db_id = wp_update_nav_menu_item( $nav_menu_selected_id, ( $_POST['menu-item-db-id'][$_key] != $_key ? 0 : $_key ), $args );
 333  
 334                          if ( is_wp_error( $menu_item_db_id ) )
 335                              $messages[] = '<div id="message" class="error"><p>' . $menu_item_db_id->get_error_message() . '</p></div>';
 336                          elseif ( isset( $menu_items[$menu_item_db_id] ) )
 337                              unset( $menu_items[$menu_item_db_id] );
 338                      }
 339                  }
 340  
 341                  // Remove menu items from the menu that weren't in $_POST
 342                  if ( ! empty( $menu_items ) ) {
 343                      foreach ( array_keys( $menu_items ) as $menu_item_id ) {
 344                          if ( is_nav_menu_item( $menu_item_id ) ) {
 345                              wp_delete_post( $menu_item_id );
 346                          }
 347                      }
 348                  }
 349  
 350                  // Store 'auto-add' pages.
 351                  $auto_add = ! empty( $_POST['auto-add-pages'] );
 352                  $nav_menu_option = (array) get_option( 'nav_menu_options' );
 353                  if ( ! isset( $nav_menu_option['auto_add'] ) )
 354                      $nav_menu_option['auto_add'] = array();
 355                  if ( $auto_add ) {
 356                      if ( ! in_array( $nav_menu_selected_id, $nav_menu_option['auto_add'] ) )
 357                          $nav_menu_option['auto_add'][] = $nav_menu_selected_id;
 358                  } else {
 359                      if ( false !== ( $key = array_search( $nav_menu_selected_id, $nav_menu_option['auto_add'] ) ) )
 360                          unset( $nav_menu_option['auto_add'][$key] );
 361                  }
 362                  // Remove nonexistent/deleted menus
 363                  $nav_menu_option['auto_add'] = array_intersect( $nav_menu_option['auto_add'], wp_get_nav_menus( array( 'fields' => 'ids' ) ) );
 364                  update_option( 'nav_menu_options', $nav_menu_option );
 365  
 366                  wp_defer_term_counting(false);
 367  
 368                  do_action( 'wp_update_nav_menu', $nav_menu_selected_id );
 369  
 370                  $messages[] = '<div id="message" class="updated"><p>' . sprintf( __('The <strong>%s</strong> menu has been updated.'), $nav_menu_selected_title ) . '</p></div>';
 371                  unset( $menu_items, $unsorted_menu_items );
 372              }
 373          }
 374          break;
 375  }
 376  
 377  // Get all nav menus
 378  $nav_menus = wp_get_nav_menus( array('orderby' => 'name') );
 379  
 380  // Get recently edited nav menu
 381  $recently_edited = (int) get_user_option( 'nav_menu_recently_edited' );
 382  
 383  // If there was no recently edited menu, and $nav_menu_selected_id is a nav menu, update recently edited menu.
 384  if ( !$recently_edited && is_nav_menu( $nav_menu_selected_id ) ) {
 385      $recently_edited = $nav_menu_selected_id;
 386  
 387  // Else if $nav_menu_selected_id is not a menu and not requesting that we create a new menu, but $recently_edited is a menu, grab that one.
 388  } elseif ( 0 == $nav_menu_selected_id && ! isset( $_REQUEST['menu'] ) && is_nav_menu( $recently_edited ) ) {
 389      $nav_menu_selected_id = $recently_edited;
 390  
 391  // Else try to grab the first menu from the menus list
 392  } elseif ( 0 == $nav_menu_selected_id && ! isset( $_REQUEST['menu'] ) && ! empty($nav_menus) ) {
 393      $nav_menu_selected_id = $nav_menus[0]->term_id;
 394  }
 395  
 396  // Update the user's setting
 397  if ( $nav_menu_selected_id != $recently_edited && is_nav_menu( $nav_menu_selected_id ) )
 398      update_user_meta( $current_user->ID, 'nav_menu_recently_edited', $nav_menu_selected_id );
 399  
 400  // If there's a menu, get its name.
 401  if ( ! $nav_menu_selected_title && is_nav_menu( $nav_menu_selected_id ) ) {
 402      $_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
 403      $nav_menu_selected_title = ! is_wp_error( $_menu_object ) ? $_menu_object->name : '';
 404  }
 405  
 406  // Generate truncated menu names
 407  foreach( (array) $nav_menus as $key => $_nav_menu ) {
 408      $_nav_menu->truncated_name = trim( wp_html_excerpt( $_nav_menu->name, 40 ) );
 409      if ( $_nav_menu->truncated_name != $_nav_menu->name )
 410          $_nav_menu->truncated_name .= '&hellip;';
 411  
 412      $nav_menus[$key]->truncated_name = $_nav_menu->truncated_name;
 413  }
 414  
 415  // Ensure the user will be able to scroll horizontally
 416  // by adding a class for the max menu depth.
 417  global $_wp_nav_menu_max_depth;
 418  $_wp_nav_menu_max_depth = 0;
 419  
 420  // Calling wp_get_nav_menu_to_edit generates $_wp_nav_menu_max_depth
 421  if ( is_nav_menu( $nav_menu_selected_id ) )
 422      $edit_markup = wp_get_nav_menu_to_edit( $nav_menu_selected_id );
 423  
 424  function wp_nav_menu_max_depth($classes) {
 425      global $_wp_nav_menu_max_depth;
 426      return "$classes menu-max-depth-$_wp_nav_menu_max_depth";
 427  }
 428  
 429  add_filter('admin_body_class', 'wp_nav_menu_max_depth');
 430  
 431  wp_nav_menu_setup();
 432  wp_initial_nav_menu_meta_boxes();
 433  
 434  if ( ! current_theme_supports( 'menus' ) && ! wp_get_nav_menus() )
 435      $messages[] = '<div id="message" class="updated"><p>' . __('The current theme does not natively support menus, but you can use the &#8220;Custom Menu&#8221; widget to add any menus you create here to the theme&#8217;s sidebar.') . '</p></div>';
 436  
 437  get_current_screen()->add_help_tab( array(
 438  'id'        => 'overview',
 439  'title'        => __('Overview'),
 440  'content'    =>
 441      '<p>' . __('This feature allows you to use a custom menu in place of your theme&#8217;s default menus.') . '</p>' .
 442      '<p>' . __('Custom menus may contain links to pages, categories, custom links or other content types (use the Screen Options tab to decide which ones to show on the screen). You can specify a different navigation label for a menu item as well as other attributes. You can create multiple menus. If your theme includes more than one menu location, you can choose which custom menu to associate with each. You can also use custom menus in conjunction with the Custom Menus widget.') . '</p>' .
 443      '<p>' . sprintf( __('If your theme does not support the custom menus feature (the default themes, %1$s and %2$s, do), you can learn about adding this support by following the Documentation link to the side.'), 'Twenty Twelve', 'Twenty Eleven' ) . '</p>'
 444  ) );
 445  get_current_screen()->add_help_tab( array(
 446  'id'        => 'create-menus',
 447  'title'        => __('Create Menus'),
 448  'content'    =>
 449      '<p>' . __('To create a new custom menu, click on the + tab, give the menu a name, and click Create Menu. Next, add menu items from the appropriate boxes. You&#8217;ll be able to edit the information for each menu item, and can drag and drop to change their order. You can also drag a menu item a little to the right to make it a submenu. Don&#8217;t forget to click Save Menu when you&#8217;re finished.') . '</p>'
 450  ) );
 451  
 452  get_current_screen()->set_help_sidebar(
 453      '<p><strong>' . __('For more information:') . '</strong></p>' .
 454      '<p>' . __('<a href="http://codex.wordpress.org/Appearance_Menus_Screen" target="_blank">Documentation on Menus</a>') . '</p>' .
 455      '<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
 456  );
 457  
 458  // Get the admin header
 459  require_once ( './admin-header.php' );
 460  ?>
 461  <div class="wrap">
 462      <?php screen_icon(); ?>
 463      <h2><?php esc_html_e('Menus'); ?></h2>
 464      <?php
 465      foreach( $messages as $message ) :
 466          echo $message . "\n";
 467      endforeach;
 468      ?>
 469      <div id="nav-menus-frame">
 470      <div id="menu-settings-column" class="metabox-holder<?php if ( !$nav_menu_selected_id ) { echo ' metabox-holder-disabled'; } ?>">
 471  
 472          <form id="nav-menu-meta" action="<?php echo admin_url( 'nav-menus.php' ); ?>" class="nav-menu-meta" method="post" enctype="multipart/form-data">
 473              <input type="hidden" name="menu" id="nav-menu-meta-object-id" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
 474              <input type="hidden" name="action" value="add-menu-item" />
 475              <?php wp_nonce_field( 'add-menu_item', 'menu-settings-column-nonce' ); ?>
 476              <?php do_meta_boxes( 'nav-menus', 'side', null ); ?>
 477          </form>
 478  
 479      </div><!-- /#menu-settings-column -->
 480      <div id="menu-management-liquid">
 481          <div id="menu-management">
 482              <div id="select-nav-menu-container" class="hide-if-js">
 483                  <form id="select-nav-menu" action="">
 484                      <strong><label for="select-nav-menu"><?php esc_html_e( 'Select Menu:' ); ?></label></strong>
 485                      <select class="select-nav-menu" name="menu">
 486                          <?php foreach( (array) $nav_menus as $_nav_menu ) : ?>
 487                              <option value="<?php echo esc_attr($_nav_menu->term_id) ?>" <?php selected($nav_menu_selected_id, $_nav_menu->term_id); ?>>
 488                                  <?php echo esc_html( $_nav_menu->truncated_name ); ?>
 489                              </option>
 490                          <?php endforeach; ?>
 491                          <option value="0"><?php esc_html_e('Add New Menu'); ?></option>
 492                      </select>
 493                      <input type="hidden" name="action" value="edit" />
 494                      <?php submit_button( __( 'Select' ), 'secondary', 'select_menu', false ); ?>
 495                  </form>
 496              </div>
 497              <div class="nav-tabs-wrapper">
 498              <div class="nav-tabs">
 499                  <?php
 500                  foreach( (array) $nav_menus as $_nav_menu ) :
 501                      if ( $nav_menu_selected_id == $_nav_menu->term_id ) : ?><span class="nav-tab nav-tab-active">
 502                              <?php echo esc_html( $_nav_menu->truncated_name ); ?>
 503                          </span><?php else : ?><a href="<?php
 504                              echo esc_url(add_query_arg(
 505                                  array(
 506                                      'action' => 'edit',
 507                                      'menu' => $_nav_menu->term_id,
 508                                  ),
 509                                  admin_url( 'nav-menus.php' )
 510                              ));
 511                          ?>" class="nav-tab hide-if-no-js">
 512                              <?php echo esc_html( $_nav_menu->truncated_name ); ?>
 513                          </a><?php endif;
 514                  endforeach;
 515                  if ( 0 == $nav_menu_selected_id ) : ?><span class="nav-tab menu-add-new nav-tab-active">
 516                      <?php printf( '<abbr title="%s">+</abbr>', esc_html__( 'Add menu' ) ); ?>
 517                  </span><?php else : ?><a href="<?php
 518                      echo esc_url(add_query_arg(
 519                          array(
 520                              'action' => 'edit',
 521                              'menu' => 0,
 522                          ),
 523                          admin_url( 'nav-menus.php' )
 524                      ));
 525                  ?>" class="nav-tab menu-add-new">
 526                      <?php printf( '<abbr title="%s">+</abbr>', esc_html__( 'Add menu' ) ); ?>
 527                  </a><?php endif; ?>
 528              </div>
 529              </div>
 530              <div class="menu-edit">
 531                  <form id="update-nav-menu" action="<?php echo admin_url( 'nav-menus.php' ); ?>" method="post" enctype="multipart/form-data">
 532                      <div id="nav-menu-header">
 533                          <div id="submitpost" class="submitbox">
 534                              <div class="major-publishing-actions">
 535                                  <label class="menu-name-label howto open-label" for="menu-name">
 536                                      <span><?php _e('Menu Name'); ?></span>
 537                                      <input name="menu-name" id="menu-name" type="text" class="menu-name regular-text menu-item-textbox input-with-default-title" title="<?php esc_attr_e('Enter menu name here'); ?>" value="<?php echo esc_attr( $nav_menu_selected_title ); ?>" />
 538                                  </label>
 539                                  <?php if ( !empty( $nav_menu_selected_id ) ) :
 540                                      if ( ! isset( $auto_add ) ) {
 541                                          $auto_add = get_option( 'nav_menu_options' );
 542                                          if ( ! isset( $auto_add['auto_add'] ) )
 543                                              $auto_add = false;
 544                                          elseif ( false !== array_search( $nav_menu_selected_id, $auto_add['auto_add'] ) )
 545                                              $auto_add = true;
 546                                          else
 547                                              $auto_add = false;
 548                                      }
 549                                  ?>
 550                                  <div class="auto-add-pages">
 551                                      <label class="howto"><input type="checkbox"<?php checked( $auto_add ); ?> name="auto-add-pages" value="1" /> <?php printf( __('Automatically add new top-level pages' ), esc_url( admin_url( 'edit.php?post_type=page' ) ) ); ?></label>
 552                                  </div>
 553                                  <?php endif; ?>
 554                                  <br class="clear" />
 555                                  <div class="publishing-action">
 556                                      <?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false, array( 'id' => 'save_menu_header' ) ); ?>
 557                                  </div><!-- END .publishing-action -->
 558  
 559                                  <?php if ( ! empty( $nav_menu_selected_id ) ) : ?>
 560                                  <div class="delete-action">
 561                                      <a class="submitdelete deletion menu-delete" href="<?php echo esc_url( wp_nonce_url( admin_url('nav-menus.php?action=delete&amp;menu=' . $nav_menu_selected_id), 'delete-nav_menu-' . $nav_menu_selected_id ) ); ?>"><?php _e('Delete Menu'); ?></a>
 562                                  </div><!-- END .delete-action -->
 563                                  <?php endif; ?>
 564                              </div><!-- END .major-publishing-actions -->
 565                          </div><!-- END #submitpost .submitbox -->
 566                          <?php
 567                          wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false );
 568                          wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false );
 569                          wp_nonce_field( 'update-nav_menu', 'update-nav-menu-nonce' );
 570                          ?>
 571                          <input type="hidden" name="action" value="update" />
 572                          <input type="hidden" name="menu" id="menu" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
 573                      </div><!-- END #nav-menu-header -->
 574                      <div id="post-body">
 575                          <div id="post-body-content">
 576                              <?php
 577                              if ( isset( $edit_markup ) ) {
 578                                  if ( ! is_wp_error( $edit_markup ) )
 579                                      echo $edit_markup;
 580                              } else if ( empty( $nav_menu_selected_id ) ) {
 581                                  echo '<div class="post-body-plain">';
 582                                  echo '<p>' . __('To create a custom menu, give it a name above and click Create Menu. Then choose items like pages, categories or custom links from the left column to add to this menu.') . '</p>';
 583                                  echo '<p>' . __('After you have added your items, drag and drop to put them in the order you want. You can also click each item to reveal additional configuration options.') . '</p>';
 584                                  echo '<p>' . __('When you have finished building your custom menu, make sure you click the Save Menu button.') . '</p>';
 585                                  echo '</div>';
 586                              }
 587                              ?>
 588                          </div><!-- /#post-body-content -->
 589                      </div><!-- /#post-body -->
 590                      <div id="nav-menu-footer">
 591                          <div class="major-publishing-actions">
 592                          <div class="publishing-action">
 593                              <?php
 594                              if ( ! empty( $nav_menu_selected_id ) )
 595                                  submit_button( __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false, array( 'id' => 'save_menu_footer' ) );
 596                              ?>
 597                          </div>
 598                          </div>
 599                      </div><!-- /#nav-menu-footer -->
 600                  </form><!-- /#update-nav-menu -->
 601              </div><!-- /.menu-edit -->
 602          </div><!-- /#menu-management -->
 603      </div><!-- /#menu-management-liquid -->
 604      </div><!-- /#nav-menus-frame -->
 605  </div><!-- /.wrap-->
 606  
 607  <?php include ( './admin-footer.php' ); ?>

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