wp-admin/nav-menus.php

   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( dirname( __FILE__ ) . '/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 // Get existing menu locations assignments
  40 $locations = get_registered_nav_menus();
  41 $menu_locations = get_nav_menu_locations();
  42 $num_locations = count( array_keys( $locations ) );
  43
  44 // Allowed actions: add, update, delete
  45 $action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'edit';
  46
  47 switch ( $action ) {
  48         case 'add-menu-item':
  49                 check_admin_referer( 'add-menu_item', 'menu-settings-column-nonce' );
  50                 if ( isset( $_REQUEST['nav-menu-locations'] ) )
  51                         set_theme_mod( 'nav_menu_locations', array_map( 'absint', $_REQUEST['menu-locations'] ) );
  52                 elseif ( isset( $_REQUEST['menu-item'] ) )
  53                         wp_save_nav_menu_items( $nav_menu_selected_id, $_REQUEST['menu-item'] );
  54                 break;
  55         case 'move-down-menu-item' :
  56                 // moving down a menu item is the same as moving up the next in order
  57                 check_admin_referer( 'move-menu_item' );
  58                 $menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;
  59                 if ( is_nav_menu_item( $menu_item_id ) ) {
  60                         $menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
  61                         if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {
  62                                 $menu_id = (int) $menus[0];
  63                                 $ordered_menu_items = wp_get_nav_menu_items( $menu_id );
  64                                 $menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );
  65
  66                                 // set up the data we need in one pass through the array of menu items
  67                                 $dbids_to_orders = array();
  68                                 $orders_to_dbids = array();
  69                                 foreach( (array) $ordered_menu_items as $ordered_menu_item_object ) {
  70                                         if ( isset( $ordered_menu_item_object->ID ) ) {
  71                                                 if ( isset( $ordered_menu_item_object->menu_order ) ) {
  72                                                         $dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order;
  73                                                         $orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID;
  74                                                 }
  75                                         }
  76                                 }
  77
  78                                 // get next in order
  79                                 if (
  80                                         isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1] )
  81                                 ) {
  82                                         $next_item_id = $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1];
  83                                         $next_item_data = (array) wp_setup_nav_menu_item( get_post( $next_item_id ) );
  84
  85                                         // if not siblings of same parent, bubble menu item up but keep order
  86                                         if (
  87                                                 ! empty( $menu_item_data['menu_item_parent'] ) &&
  88                                                 (
  89                                                         empty( $next_item_data['menu_item_parent'] ) ||
  90                                                         $next_item_data['menu_item_parent'] != $menu_item_data['menu_item_parent']
  91                                                 )
  92                                         ) {
  93
  94                                                 $parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0;
  95
  96                                                 $parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );
  97
  98                                                 if ( ! is_wp_error( $parent_object ) ) {
  99                                                         $parent_data = (array) $parent_object;
 100                                                         $menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];
 101                                                         update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 102
 103                                                 }
 104
 105                                         // make menu item a child of its next sibling
 106                                         } else {
 107                                                 $next_item_data['menu_order'] = $next_item_data['menu_order'] - 1;
 108                                                 $menu_item_data['menu_order'] = $menu_item_data['menu_order'] + 1;
 109
 110                                                 $menu_item_data['menu_item_parent'] = $next_item_data['ID'];
 111                                                 update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 112
 113                                                 wp_update_post($menu_item_data);
 114                                                 wp_update_post($next_item_data);
 115                                         }
 116
 117                                 // the item is last but still has a parent, so bubble up
 118                                 } elseif (
 119                                         ! empty( $menu_item_data['menu_item_parent'] ) &&
 120                                         in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids )
 121                                 ) {
 122                                         $menu_item_data['menu_item_parent'] = (int) get_post_meta( $menu_item_data['menu_item_parent'], '_menu_item_menu_item_parent', true);
 123                                         update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 124                                 }
 125                         }
 126                 }
 127
 128                 break;
 129         case 'move-up-menu-item' :
 130                 check_admin_referer( 'move-menu_item' );
 131                 $menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;
 132                 if ( is_nav_menu_item( $menu_item_id ) ) {
 133                         $menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
 134                         if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {
 135                                 $menu_id = (int) $menus[0];
 136                                 $ordered_menu_items = wp_get_nav_menu_items( $menu_id );
 137                                 $menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );
 138
 139                                 // set up the data we need in one pass through the array of menu items
 140                                 $dbids_to_orders = array();
 141                                 $orders_to_dbids = array();
 142                                 foreach( (array) $ordered_menu_items as $ordered_menu_item_object ) {
 143                                         if ( isset( $ordered_menu_item_object->ID ) ) {
 144                                                 if ( isset( $ordered_menu_item_object->menu_order ) ) {
 145                                                         $dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order;
 146                                                         $orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID;
 147                                                 }
 148                                         }
 149                                 }
 150
 151                                 // if this menu item is not first
 152                                 if ( ! empty( $dbids_to_orders[$menu_item_id] ) && ! empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ) {
 153
 154                                         // if this menu item is a child of the previous
 155                                         if (
 156                                                 ! empty( $menu_item_data['menu_item_parent'] ) &&
 157                                                 in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) &&
 158                                                 isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) &&
 159                                                 ( $menu_item_data['menu_item_parent'] == $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] )
 160                                         ) {
 161                                                 $parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0;
 162                                                 $parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );
 163
 164                                                 if ( ! is_wp_error( $parent_object ) ) {
 165                                                         $parent_data = (array) $parent_object;
 166
 167                                                         // if there is something before the parent and parent a child of it, make menu item a child also of it
 168                                                         if (
 169                                                                 ! empty( $dbids_to_orders[$parent_db_id] ) &&
 170                                                                 ! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] ) &&
 171                                                                 ! empty( $parent_data['menu_item_parent'] )
 172                                                         ) {
 173                                                                 $menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];
 174
 175                                                         // else if there is something before parent and parent not a child of it, make menu item a child of that something's parent
 176                                                         } elseif (
 177                                                                 ! empty( $dbids_to_orders[$parent_db_id] ) &&
 178                                                                 ! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] )
 179                                                         ) {
 180                                                                 $_possible_parent_id = (int) get_post_meta( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1], '_menu_item_menu_item_parent', true);
 181                                                                 if ( in_array( $_possible_parent_id, array_keys( $dbids_to_orders ) ) )
 182                                                                         $menu_item_data['menu_item_parent'] = $_possible_parent_id;
 183                                                                 else
 184                                                                         $menu_item_data['menu_item_parent'] = 0;
 185
 186                                                         // else there isn't something before the parent
 187                                                         } else {
 188                                                                 $menu_item_data['menu_item_parent'] = 0;
 189                                                         }
 190
 191                                                         // set former parent's [menu_order] to that of menu-item's
 192                                                         $parent_data['menu_order'] = $parent_data['menu_order'] + 1;
 193
 194                                                         // set menu-item's [menu_order] to that of former parent
 195                                                         $menu_item_data['menu_order'] = $menu_item_data['menu_order'] - 1;
 196
 197                                                         // save changes
 198                                                         update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 199                                                         wp_update_post($menu_item_data);
 200                                                         wp_update_post($parent_data);
 201                                                 }
 202
 203                                         // else this menu item is not a child of the previous
 204                                         } elseif (
 205                                                 empty( $menu_item_data['menu_order'] ) ||
 206                                                 empty( $menu_item_data['menu_item_parent'] ) ||
 207                                                 ! in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) ||
 208                                                 empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ||
 209                                                 $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] != $menu_item_data['menu_item_parent']
 210                                         ) {
 211                                                 // just make it a child of the previous; keep the order
 212                                                 $menu_item_data['menu_item_parent'] = (int) $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1];
 213                                                 update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
 214                                                 wp_update_post($menu_item_data);
 215                                         }
 216                                 }
 217                         }
 218                 }
 219                 break;
 220
 221         case 'delete-menu-item':
 222                 $menu_item_id = (int) $_REQUEST['menu-item'];
 223
 224                 check_admin_referer( 'delete-menu_item_' . $menu_item_id );
 225
 226                 if ( is_nav_menu_item( $menu_item_id ) && wp_delete_post( $menu_item_id, true ) )
 227                         $messages[] = '<div id="message" class="updated"><p>' . __('The menu item has been successfully deleted.') . '</p></div>';
 228                 break;
 229
 230         case 'delete':
 231                 check_admin_referer( 'delete-nav_menu-' . $nav_menu_selected_id );
 232                 if ( is_nav_menu( $nav_menu_selected_id ) ) {
 233                         $deletion = wp_delete_nav_menu( $nav_menu_selected_id );
 234                 } else {
 235                         // Reset the selected menu
 236                         $nav_menu_selected_id = 0;
 237                         unset( $_REQUEST['menu'] );
 238                 }
 239
 240                 if ( ! isset( $deletion ) )
 241                         break;
 242
 243                 if ( is_wp_error( $deletion ) )
 244                         $messages[] = '<div id="message" class="error"><p>' . $deletion->get_error_message() . '</p></div>';
 245                 else
 246                         $messages[] = '<div id="message" class="updated"><p>' . __( 'The menu has been successfully deleted.' ) . '</p></div>';
 247                 break;
 248
 249         case 'delete_menus':
 250                 check_admin_referer( 'nav_menus_bulk_actions' );
 251                 foreach ( $_REQUEST['delete_menus'] as $menu_id_to_delete ) {
 252                         if ( ! is_nav_menu( $menu_id_to_delete ) )
 253                                 continue;
 254
 255                         $deletion = wp_delete_nav_menu( $menu_id_to_delete );
 256                         if ( is_wp_error( $deletion ) ) {
 257                                 $messages[] = '<div id="message" class="error"><p>' . $deletion->get_error_message() . '</p></div>';
 258                                 $deletion_error = true;
 259                         }
 260                 }
 261
 262                 if ( empty( $deletion_error ) )
 263                         $messages[] = '<div id="message" class="updated"><p>' . __( 'Selected menus have been successfully deleted.' ) . '</p></div>';
 264                 break;
 265
 266         case 'update':
 267                 check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );
 268
 269                 // Remove menu locations that have been unchecked
 270                 foreach ( $locations as $location => $description ) {
 271                         if ( ( empty( $_POST['menu-locations'] ) || empty( $_POST['menu-locations'][ $location ] ) ) && isset( $menu_locations[ $location ] ) && $menu_locations[ $location ] == $nav_menu_selected_id )
 272                                 unset( $menu_locations[ $location ] );
 273                 }
 274
 275                 // Merge new and existing menu locations if any new ones are set
 276                 if ( isset( $_POST['menu-locations'] ) ) {
 277                         $new_menu_locations = array_map( 'absint', $_POST['menu-locations'] );
 278                         $menu_locations = array_merge( $menu_locations, $new_menu_locations );
 279                 }
 280
 281                 // Set menu locations
 282                 set_theme_mod( 'nav_menu_locations', $menu_locations );
 283
 284                 // Add Menu
 285                 if ( 0 == $nav_menu_selected_id ) {
 286                         $new_menu_title = trim( esc_html( $_POST['menu-name'] ) );
 287
 288                         if ( $new_menu_title ) {
 289                                 $_nav_menu_selected_id = wp_update_nav_menu_object( 0, array('menu-name' => $new_menu_title) );
 290
 291                                 if ( is_wp_error( $_nav_menu_selected_id ) ) {
 292                                         $messages[] = '<div id="message" class="error"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
 293                                 } else {
 294                                         $_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );
 295                                         $nav_menu_selected_id = $_nav_menu_selected_id;
 296                                         $nav_menu_selected_title = $_menu_object->name;
 297                                         if ( isset( $_REQUEST['menu-item'] ) )
 298                                                 wp_save_nav_menu_items( $nav_menu_selected_id, absint( $_REQUEST['menu-item'] ) );
 299                                         if ( isset( $_REQUEST['zero-menu-state'] ) ) {
 300                                                 // If there are menu items, add them
 301                                                 wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title );
 302                                                 // Auto-save nav_menu_locations
 303                                                 $locations = get_nav_menu_locations();
 304                                                 foreach ( $locations as $location => $menu_id ) {
 305                                                                 $locations[ $location ] = $nav_menu_selected_id;
 306                                                                 break; // There should only be 1
 307                                                 }
 308                                                 set_theme_mod( 'nav_menu_locations', $locations );
 309                                         }
 310                                         if ( isset( $_REQUEST['use-location'] ) ) {
 311                                                 $locations = get_registered_nav_menus();
 312                                                 $menu_locations = get_nav_menu_locations();
 313                                                 if ( isset( $locations[ $_REQUEST['use-location'] ] ) )
 314                                                         $menu_locations[ $_REQUEST['use-location'] ] = $nav_menu_selected_id;
 315                                                 set_theme_mod( 'nav_menu_locations', $menu_locations );
 316                                         }
 317                                         // $messages[] = '<div id="message" class="updated"><p>' . sprintf( __( '<strong>%s</strong> has been created.' ), $nav_menu_selected_title ) . '</p></div>';
 318                                         wp_redirect( admin_url( 'nav-menus.php?menu=' . $_nav_menu_selected_id ) );
 319                                         exit();
 320                                 }
 321                         } else {
 322                                 $messages[] = '<div id="message" class="error"><p>' . __( 'Please enter a valid menu name.' ) . '</p></div>';
 323                         }
 324
 325                 // Update existing menu
 326                 } else {
 327
 328                         $_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
 329
 330                         $menu_title = trim( esc_html( $_POST['menu-name'] ) );
 331                         if ( ! $menu_title ) {
 332                                 $messages[] = '<div id="message" class="error"><p>' . __( 'Please enter a valid menu name.' ) . '</p></div>';
 333                                 $menu_title = $_menu_object->name;
 334                         }
 335
 336                         if ( ! is_wp_error( $_menu_object ) ) {
 337                                 $_nav_menu_selected_id = wp_update_nav_menu_object( $nav_menu_selected_id, array( 'menu-name' => $menu_title ) );
 338                                 if ( is_wp_error( $_nav_menu_selected_id ) ) {
 339                                         $_menu_object = $_nav_menu_selected_id;
 340                                         $messages[] = '<div id="message" class="error"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
 341                                 } else {
 342                                         $_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );
 343                                         $nav_menu_selected_title = $_menu_object->name;
 344                                 }
 345                         }
 346
 347                         // Update menu items
 348                         if ( ! is_wp_error( $_menu_object ) ) {
 349                                 $messages = array_merge( $messages, wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title ) );
 350                         }
 351                 }
 352                 break;
 353         case 'locations':
 354                 if ( ! $num_locations ) {
 355                         wp_redirect( admin_url( 'nav-menus.php' ) );
 356                         exit();
 357                 }
 358
 359                 add_filter( 'screen_options_show_screen', '__return_false' );
 360
 361                 if ( isset( $_POST['menu-locations'] ) ) {
 362                         check_admin_referer( 'save-menu-locations' );
 363
 364                         $new_menu_locations = array_map( 'absint', $_POST['menu-locations'] );
 365                         $menu_locations = array_merge( $menu_locations, $new_menu_locations );
 366                         // Set menu locations
 367                         set_theme_mod( 'nav_menu_locations', $menu_locations );
 368
 369                         $messages[] = '<div id="message" class="updated"><p>' . __( 'Menu locations updated.' ) . '</p></div>';
 370                 }
 371                 break;
 372 }
 373
 374 // Get all nav menus
 375 $nav_menus = wp_get_nav_menus( array('orderby' => 'name') );
 376 $menu_count = count( $nav_menus );
 377
 378 // Are we on the add new screen?
 379 $add_new_screen = ( isset( $_GET['menu'] ) && 0 == $_GET['menu'] ) ? true : false;
 380
 381 $locations_screen = ( isset( $_GET['action'] ) && 'locations' == $_GET['action'] ) ? true : false;
 382
 383 // If we have one theme location, and zero menus, we take them right into editing their first menu
 384 $page_count = wp_count_posts( 'page' );
 385 $one_theme_location_no_menus = ( 1 == count( get_registered_nav_menus() ) && ! $add_new_screen && empty( $nav_menus ) && ! empty( $page_count->publish ) ) ? true : false;
 386
 387 $nav_menus_l10n = array(
 388         'oneThemeLocationNoMenus' => $one_theme_location_no_menus,
 389         'moveUp'       => __( 'Move up one' ),
 390         'moveDown'     => __( 'Move down one' ),
 391         'moveToTop'    => __( 'Move to the top' ),
 392         /* translators: %s: previous item name */
 393         'moveUnder'    => __( 'Move under %s' ),
 394         /* translators: %s: previous item name */
 395         'moveOutFrom'  => __( 'Move out from under %s' ),
 396         /* translators: %s: previous item name */
 397         'under'        => __( 'Under %s' ),
 398         /* translators: %s: previous item name */
 399         'outFrom'      => __( 'Out from under %s' ),
 400         /* translators: 1: item name, 2: item position, 3: total number of items */
 401         'menuFocus'    => __( '%1$s. Menu item %2$d of %3$d.' ),
 402         /* translators: 1: item name, 2: item position, 3: parent item name */
 403         'subMenuFocus' => __( '%1$s. Sub item number %2$d under %3$s.' ),
 404 );
 405 wp_localize_script( 'nav-menu', 'menus', $nav_menus_l10n );
 406
 407 // Redirect to add screen if there are no menus and this users has either zero, or more than 1 theme locations
 408 if ( 0 == $menu_count && ! $add_new_screen && ! $one_theme_location_no_menus )
 409         wp_redirect( admin_url( 'nav-menus.php?action=edit&menu=0' ) );
 410
 411 // Get recently edited nav menu
 412 $recently_edited = absint( get_user_option( 'nav_menu_recently_edited' ) );
 413 if ( empty( $recently_edited ) && is_nav_menu( $nav_menu_selected_id ) )
 414         $recently_edited = $nav_menu_selected_id;
 415
 416 // Use $recently_edited if none are selected
 417 if ( empty( $nav_menu_selected_id ) && ! isset( $_GET['menu'] ) && is_nav_menu( $recently_edited ) )
 418         $nav_menu_selected_id = $recently_edited;
 419
 420 // On deletion of menu, if another menu exists, show it
 421 if ( ! $add_new_screen && 0 < $menu_count && isset( $_GET['action'] ) && 'delete' == $_GET['action'] )
 422         $nav_menu_selected_id = $nav_menus[0]->term_id;
 423
 424 // Set $nav_menu_selected_id to 0 if no menus
 425 if ( $one_theme_location_no_menus ) {
 426         $nav_menu_selected_id = 0;
 427 } elseif ( empty( $nav_menu_selected_id ) && ! empty( $nav_menus ) && ! $add_new_screen ) {
 428         // if we have no selection yet, and we have menus, set to the first one in the list
 429         $nav_menu_selected_id = $nav_menus[0]->term_id;
 430 }
 431
 432 // Update the user's setting
 433 if ( $nav_menu_selected_id != $recently_edited && is_nav_menu( $nav_menu_selected_id ) )
 434         update_user_meta( $current_user->ID, 'nav_menu_recently_edited', $nav_menu_selected_id );
 435
 436 // If there's a menu, get its name.
 437 if ( ! $nav_menu_selected_title && is_nav_menu( $nav_menu_selected_id ) ) {
 438         $_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
 439         $nav_menu_selected_title = ! is_wp_error( $_menu_object ) ? $_menu_object->name : '';
 440 }
 441
 442 // Generate truncated menu names
 443 foreach( (array) $nav_menus as $key => $_nav_menu ) {
 444         $nav_menus[$key]->truncated_name = wp_html_excerpt( $_nav_menu->name, 40, '&hellip;' );
 445 }
 446
 447 // Retrieve menu locations
 448 if ( current_theme_supports( 'menus' ) ) {
 449         $locations = get_registered_nav_menus();
 450         $menu_locations = get_nav_menu_locations();
 451 }
 452
 453 // Ensure the user will be able to scroll horizontally
 454 // by adding a class for the max menu depth.
 455 global $_wp_nav_menu_max_depth;
 456 $_wp_nav_menu_max_depth = 0;
 457
 458 // Calling wp_get_nav_menu_to_edit generates $_wp_nav_menu_max_depth
 459 if ( is_nav_menu( $nav_menu_selected_id ) ) {
 460         $menu_items = wp_get_nav_menu_items( $nav_menu_selected_id, array( 'post_status' => 'any' ) );
 461         $edit_markup = wp_get_nav_menu_to_edit( $nav_menu_selected_id );
 462 }
 463
 464 function wp_nav_menu_max_depth($classes) {
 465         global $_wp_nav_menu_max_depth;
 466         return "$classes menu-max-depth-$_wp_nav_menu_max_depth";
 467 }
 468
 469 add_filter('admin_body_class', 'wp_nav_menu_max_depth');
 470
 471 wp_nav_menu_setup();
 472 wp_initial_nav_menu_meta_boxes();
 473
 474 if ( ! current_theme_supports( 'menus' ) && ! $num_locations )
 475         $messages[] = '<div id="message" class="updated"><p>' . sprintf( __( 'Your theme does not natively support menus, but you can use them in sidebars by adding a &#8220;Custom Menu&#8221; widget on the <a href="%s">Widgets</a> screen.' ), admin_url( 'widgets.php' ) ) . '</p></div>';
 476
 477 if ( ! $locations_screen ) : // Main tab
 478         $overview  = '<p>' . __( 'This screen is used for managing your custom navigation menus.' ) . '</p>';
 479         $overview .= '<p>' . sprintf( __( 'Menus can be displayed in locations defined by your theme, even used in sidebars by adding a &#8220;Custom Menu&#8221; widget on the <a href="%1$s">Widgets</a> screen. If your theme does not support the custom menus feature (the default themes, %2$s and %3$s, do), you can learn about adding this support by following the Documentation link to the side.' ), admin_url( 'widgets.php' ), 'Twenty Fourteen', 'Twenty Thirteen' ) . '</p>';
 480         $overview .= '<p>' . __( 'From this screen you can:' ) . '</p>';
 481         $overview .= '<ul><li>' . __( 'Create, edit, and delete menus' ) . '</li>';
 482         $overview .= '<li>' . __( 'Add, organize, and modify individual menu items' ) . '</li></ul>';
 483
 484         get_current_screen()->add_help_tab( array(
 485                 'id'      => 'overview',
 486                 'title'   => __( 'Overview' ),
 487                 'content' => $overview
 488         ) );
 489
 490         $menu_management  = '<p>' . __( 'The menu management box at the top of the screen is used to control which menu is opened in the editor below.' ) . '</p>';
 491         $menu_management .= '<ul><li>' . __( 'To edit an existing menu, <strong>choose a menu from the drop down and click Select</strong>' ) . '</li>';
 492         $menu_management .= '<li>' . __( 'If you haven&#8217;t yet created any menus, <strong>click the &#8217;create a new menu&#8217; link</strong> to get started' ) . '</li></ul>';
 493         $menu_management .= '<p>' . __( 'You can assign theme locations to individual menus by <strong>selecting the desired settings</strong> at the bottom of the menu editor. To assign menus to all theme locations at once, <strong>visit the Manage Locations tab</strong> at the top of the screen.' ) . '</p>';
 494
 495         get_current_screen()->add_help_tab( array(
 496                 'id'      => 'menu-management',
 497                 'title'   => __( 'Menu Management' ),
 498                 'content' => $menu_management
 499         ) );
 500
 501         $editing_menus  = '<p>' . __( 'Each custom menu may contain a mix of links to pages, categories, custom URLs or other content types. Menu links are added by selecting items from the expanding boxes in the left-hand column below.' ) . '</p>';
 502         $editing_menus .= '<p>' . __( '<strong>Clicking the arrow to the right of any menu item</strong> in the editor will reveal a standard group of settings. Additional settings such as link target, CSS classes, link relationships, and link descriptions can be enabled and disabled via the Screen Options tab.' ) . '</p>';
 503         $editing_menus .= '<ul><li>' . __( 'Add one or several items at once by <strong>selecting the checkbox next to each item and clicking Add to Menu</strong>' ) . '</li>';
 504         $editing_menus .= '<li>' . __( 'To add a custom link, <strong>expand the Links section, enter a URL and link text, and click Add to Menu</strong>' ) .'</li>';
 505         $editing_menus .= '<li>' . __( 'To reorganize menu items, <strong>drag and drop items with your mouse or use your keyboard</strong>. Drag or move a menu item a little to the right to make it a submenu' ) . '</li>';
 506         $editing_menus .= '<li>' . __( 'Delete a menu item by <strong>expanding it and clicking the Remove link</strong>' ) . '</li></ul>';
 507
 508         get_current_screen()->add_help_tab( array(
 509                 'id'      => 'editing-menus',
 510                 'title'   => __( 'Editing Menus' ),
 511                 'content' => $editing_menus
 512         ) );
 513 else : // Locations Tab
 514         $locations_overview  = '<p>' . __( 'This screen is used for globally assigning menus to locations defined by your theme.' ) . '</p>';
 515         $locations_overview .= '<ul><li>' . __( 'To assign menus to one or more theme locations, <strong>select a menu from each location&#8217;s drop down.</strong> When you&#8217;re finished, <strong>click Save Changes</strong>' ) . '</li>';
 516         $locations_overview .= '<li>' . __( 'To edit a menu currently assigned to a theme location, <strong>click the adjacent &#8217;Edit&#8217; link</strong>' ) . '</li>';
 517         $locations_overview .= '<li>' . __( 'To add a new menu instead of assigning an existing one, <strong>click the &#8217;Use new menu&#8217; link</strong>. Your new menu will be automatically assigned to that theme location' ) . '</li></ul>';
 518
 519         get_current_screen()->add_help_tab( array(
 520                 'id'      => 'locations-overview',
 521                 'title'   => __( 'Overview' ),
 522                 'content' => $locations_overview
 523         ) );
 524 endif;
 525
 526 get_current_screen()->set_help_sidebar(
 527         '<p><strong>' . __('For more information:') . '</strong></p>' .
 528         '<p>' . __('<a href="http://codex.wordpress.org/Appearance_Menus_Screen" target="_blank">Documentation on Menus</a>') . '</p>' .
 529         '<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
 530 );
 531
 532 // Get the admin header
 533 require_once( ABSPATH . 'wp-admin/admin-header.php' );
 534 ?>
 535 <div class="wrap">
 536         <h2 class="nav-tab-wrapper">
 537                 <a href="<?php echo admin_url( 'nav-menus.php' ); ?>" class="nav-tab<?php if ( ! isset( $_GET['action'] ) || isset( $_GET['action'] ) && 'locations' != $_GET['action'] ) echo ' nav-tab-active'; ?>"><?php esc_html_e( 'Edit Menus' ); ?></a>
 538                 <?php if ( $num_locations && $menu_count ) : ?>
 539                         <a href="<?php echo esc_url( add_query_arg( array( 'action' => 'locations' ), admin_url( 'nav-menus.php' ) ) ); ?>" class="nav-tab<?php if ( $locations_screen ) echo ' nav-tab-active'; ?>"><?php esc_html_e( 'Manage Locations' ); ?></a>
 540                 <?php endif; ?>
 541         </h2>
 542         <?php
 543         foreach( $messages as $message ) :
 544                 echo $message . "\n";
 545         endforeach;
 546         ?>
 547         <?php
 548         if ( $locations_screen ) :
 549                 echo '<p>' . sprintf( _n( 'Your theme supports %s menu. Select which menu you would like to use.', 'Your theme supports %s menus. Select which menu appears in each location.', $num_locations ), number_format_i18n( $num_locations ) ) . '</p>';
 550         ?>
 551         <div id="menu-locations-wrap">
 552                 <form method="post" action="<?php echo esc_url( add_query_arg( array( 'action' => 'locations' ), admin_url( 'nav-menus.php' ) ) ); ?>">
 553                         <table class="widefat fixed" cellspacing="0" id="menu-locations-table">
 554                                 <thead>
 555                                 <tr>
 556                                         <th scope="col" class="manage-column column-locations"><?php _e( 'Theme Location' ); ?></th>
 557                                         <th scope="col" class="manage-column column-menus"><?php _e( 'Assigned Menu' ); ?></th>
 558                                 </tr>
 559                                 </thead>
 560                                 <!--<tfoot>
 561                                 <tr>
 562                                         <th scope="col" class="manage-column column-locations"><?php _e( 'Theme Location' ); ?></th>
 563                                         <th scope="col" class="manage-column column-menus"><?php _e( 'Assigned Menu' ); ?></th>
 564                                 </tr>
 565                                 </tfoot>-->
 566                                 <tbody class="menu-locations">
 567                                 <?php foreach ( $locations as $_location => $_name ) { ?>
 568                                         <tr id="menu-locations-row">
 569                                                 <td class="menu-location-title"><strong><?php echo $_name; ?></strong></td>
 570                                                 <td class="menu-location-menus">
 571                                                         <select name="menu-locations[<?php echo $_location; ?>]" id="locations-<?php echo $_location; ?>">
 572                                                                 <option value="0"><?php printf( '&mdash; %s &mdash;', esc_html__( 'Select a Menu' ) ); ?></option>
 573                                                                 <?php foreach ( $nav_menus as $menu ) : ?>
 574                                                                         <?php $selected = isset( $menu_locations[$_location] ) && $menu_locations[$_location] == $menu->term_id; ?>
 575                                                                         <option <?php if ( $selected ) echo 'data-orig="true"'; ?> <?php selected( $selected ); ?> value="<?php echo $menu->term_id; ?>">
 576                                                                                 <?php echo wp_html_excerpt( $menu->name, 40, '&hellip;' ); ?>
 577                                                                         </option>
 578                                                                 <?php endforeach; ?>
 579                                                         </select>
 580                                                         <div class="locations-row-links">
 581                                                                 <?php if ( isset( $menu_locations[ $_location ] ) && 0 != $menu_locations[ $_location ] ) : ?>
 582                                                                 <span class="locations-edit-menu-link">
 583                                                                         <a href="<?php echo esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => $menu_locations[$_location] ), admin_url( 'nav-menus.php' ) ) ); ?>">
 584                                                                                 <?php _ex( 'Edit', 'menu' ); ?>
 585                                                                         </a>
 586                                                                 </span>
 587                                                                 <?php endif; ?>
 588                                                                 <span class="locations-add-menu-link">
 589                                                                         <a href="<?php echo esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => 0, 'use-location' => $_location ), admin_url( 'nav-menus.php' ) ) ); ?>">
 590                                                                                 <?php _ex( 'Use new menu', 'menu' ); ?>
 591                                                                         </a>
 592                                                                 </span>
 593                                                         </div><!-- #locations-row-links -->
 594                                                 </td><!-- .menu-location-menus -->
 595                                         </tr><!-- #menu-locations-row -->
 596                                 <?php } // foreach ?>
 597                                 </tbody>
 598                         </table>
 599                         <p class="button-controls"><?php submit_button( __( 'Save Changes' ), 'primary left', 'nav-menu-locations', false ); ?></p>
 600                         <?php wp_nonce_field( 'save-menu-locations' ); ?>
 601                         <input type="hidden" name="menu" id="nav-menu-meta-object-id" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
 602                 </form>
 603         </div><!-- #menu-locations-wrap -->
 604         <?php
 605         /**
 606          * Fires after the menu locations table is displayed.
 607          *
 608          * @since 3.6.0
 609          */
 610         do_action( 'after_menu_locations_table' ); ?>
 611         <?php else : ?>
 612         <div class="manage-menus">
 613                 <?php if ( $menu_count < 2 ) : ?>
 614                 <span class="add-edit-menu-action">
 615                         <?php printf( __( 'Edit your menu below, or <a href="%s">create a new menu</a>.' ), esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => 0 ), admin_url( 'nav-menus.php' ) ) ) ); ?>
 616                 </span><!-- /add-edit-menu-action -->
 617                 <?php else : ?>
 618                         <form method="get" action="<?php echo admin_url( 'nav-menus.php' ); ?>">
 619                         <input type="hidden" name="action" value="edit" />
 620                         <label for="menu" class="selected-menu"><?php _e( 'Select a menu to edit:' ); ?></label>
 621                         <select name="menu" id="menu">
 622                                 <?php if ( $add_new_screen ) : ?>
 623                                         <option value="0" selected="selected"><?php _e( '-- Select --' ); ?></option>
 624                                 <?php endif; ?>
 625                                 <?php foreach( (array) $nav_menus as $_nav_menu ) : ?>
 626                                         <option value="<?php echo esc_attr( $_nav_menu->term_id ); ?>" <?php selected( $_nav_menu->term_id, $nav_menu_selected_id ); ?>>
 627                                                 <?php
 628                                                 echo esc_html( $_nav_menu->truncated_name ) ;
 629
 630                                                 if ( ! empty( $menu_locations ) && in_array( $_nav_menu->term_id, $menu_locations ) ) {
 631                                                         $locations_assigned_to_this_menu = array();
 632                                                         foreach ( array_keys( $menu_locations, $_nav_menu->term_id ) as $menu_location_key ) {
 633                                                                 if ( isset( $locations[ $menu_location_key ] ) ) {
 634                                                                         $locations_assigned_to_this_menu[] = $locations[ $menu_location_key ];
 635                                                                 }
 636                                                         }
 637
 638                                                         /**
 639                                                          * Filter the number of locations listed per menu in the drop-down select.
 640                                                          *
 641                                                          * @since 3.6.0
 642                                                          *
 643                                                          * @param int $locations Number of menu locations to list. Default 3.
 644                                                          */
 645                                                         $assigned_locations = array_slice( $locations_assigned_to_this_menu, 0, absint( apply_filters( 'wp_nav_locations_listed_per_menu', 3 ) ) );
 646
 647                                                         // Adds ellipses following the number of locations defined in $assigned_locations
 648                                                         if ( ! empty( $assigned_locations ) ) {
 649                                                                 printf( ' (%1$s%2$s)',
 650                                                                         implode( ', ', $assigned_locations ),
 651                                                                         count( $locations_assigned_to_this_menu ) > count( $assigned_locations ) ? ' &hellip;' : ''
 652                                                                 );
 653                                                         }
 654                                                 }
 655                                                 ?>
 656                                         </option>
 657                                 <?php endforeach; ?>
 658                         </select>
 659                         <span class="submit-btn"><input type="submit" class="button-secondary" value="<?php _e( 'Select' ); ?>"></span>
 660                         <span class="add-new-menu-action">
 661                                 <?php printf( __( 'or <a href="%s">create a new menu</a>.' ), esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => 0 ), admin_url( 'nav-menus.php' ) ) ) ); ?>
 662                         </span><!-- /add-new-menu-action -->
 663                 </form>
 664         <?php endif; ?>
 665         </div><!-- /manage-menus -->
 666         <div id="nav-menus-frame">
 667         <div id="menu-settings-column" class="metabox-holder<?php if ( isset( $_GET['menu'] ) && '0' == $_GET['menu'] ) { echo ' metabox-holder-disabled'; } ?>">
 668
 669                 <div class="clear"></div>
 670
 671                 <form id="nav-menu-meta" action="" class="nav-menu-meta" method="post" enctype="multipart/form-data">
 672                         <input type="hidden" name="menu" id="nav-menu-meta-object-id" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
 673                         <input type="hidden" name="action" value="add-menu-item" />
 674                         <?php wp_nonce_field( 'add-menu_item', 'menu-settings-column-nonce' ); ?>
 675                         <?php do_accordion_sections( 'nav-menus', 'side', null ); ?>
 676                 </form>
 677
 678         </div><!-- /#menu-settings-column -->
 679         <div id="menu-management-liquid">
 680                 <div id="menu-management">
 681                         <form id="update-nav-menu" action="" method="post" enctype="multipart/form-data">
 682                                 <div class="menu-edit <?php if ( $add_new_screen ) echo 'blank-slate'; ?>">
 683                                         <?php
 684                                         wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false );
 685                                         wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false );
 686                                         wp_nonce_field( 'update-nav_menu', 'update-nav-menu-nonce' );
 687
 688                                         if ( $one_theme_location_no_menus ) { ?>
 689                                                 <input type="hidden" name="zero-menu-state" value="true" />
 690                                         <?php } ?>
 691                                         <input type="hidden" name="action" value="update" />
 692                                         <input type="hidden" name="menu" id="menu" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
 693                                         <div id="nav-menu-header">
 694                                                 <div class="major-publishing-actions">
 695                                                         <label class="menu-name-label howto open-label" for="menu-name">
 696                                                                 <span><?php _e( 'Menu Name' ); ?></span>
 697                                                                 <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 if ( $one_theme_location_no_menus ) _e( 'Menu 1' ); else echo esc_attr( $nav_menu_selected_title ); ?>" />
 698                                                         </label>
 699                                                         <div class="publishing-action">
 700                                                                 <?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false, array( 'id' => 'save_menu_header' ) ); ?>
 701                                                         </div><!-- END .publishing-action -->
 702                                                 </div><!-- END .major-publishing-actions -->
 703                                         </div><!-- END .nav-menu-header -->
 704                                         <div id="post-body">
 705                                                 <div id="post-body-content">
 706                                                         <?php if ( ! $add_new_screen ) : ?>
 707                                                         <h3><?php _e( 'Menu Structure' ); ?></h3>
 708                                                         <?php $starter_copy = ( $one_theme_location_no_menus ) ? __( 'Edit your default menu by adding or removing items. Drag each item into the order you prefer. Click Create Menu to save your changes.' ) : __( 'Drag each item into the order you prefer. Click the arrow on the right of the item to reveal additional configuration options.' ); ?>
 709                                                         <div class="drag-instructions post-body-plain" <?php if ( isset( $menu_items ) && 0 == count( $menu_items ) ) { ?>style="display: none;"<?php } ?>>
 710                                                                 <p><?php echo $starter_copy; ?></p>
 711                                                         </div>
 712                                                         <?php
 713                                                         if ( isset( $edit_markup ) && ! is_wp_error( $edit_markup ) ) {
 714                                                                 echo $edit_markup;
 715                                                         } else {
 716                                                         ?>
 717                                                         <ul class="menu" id="menu-to-edit"></ul>
 718                                                         <?php } ?>
 719                                                         <?php endif; ?>
 720                                                         <?php if ( $add_new_screen ) : ?>
 721                                                                 <p class="post-body-plain"><?php _e( 'Give your menu a name above, then click Create Menu.' ); ?></p>
 722                                                                 <?php if ( isset( $_GET['use-location'] ) ) : ?>
 723                                                                         <input type="hidden" name="use-location" value="<?php echo esc_attr( $_GET['use-location'] ); ?>" />
 724                                                                 <?php endif; ?>
 725                                                         <?php endif; ?>
 726                                                         <div class="menu-settings" <?php if ( $one_theme_location_no_menus ) { ?>style="display: none;"<?php } ?>>
 727                                                                 <h3><?php _e( 'Menu Settings' ); ?></h3>
 728                                                                 <?php
 729                                                                 if ( ! isset( $auto_add ) ) {
 730                                                                         $auto_add = get_option( 'nav_menu_options' );
 731                                                                         if ( ! isset( $auto_add['auto_add'] ) )
 732                                                                                 $auto_add = false;
 733                                                                         elseif ( false !== array_search( $nav_menu_selected_id, $auto_add['auto_add'] ) )
 734                                                                                 $auto_add = true;
 735                                                                         else
 736                                                                                 $auto_add = false;
 737                                                                 } ?>
 738
 739                                                                 <dl class="auto-add-pages">
 740                                                                         <dt class="howto"><?php _e( 'Auto add pages' ); ?></dt>
 741                                                                         <dd class="checkbox-input"><input type="checkbox"<?php checked( $auto_add ); ?> name="auto-add-pages" id="auto-add-pages" value="1" /> <label for="auto-add-pages"><?php printf( __('Automatically add new top-level pages to this menu' ), esc_url( admin_url( 'edit.php?post_type=page' ) ) ); ?></label></dd>
 742                                                                 </dl>
 743
 744                                                                 <?php if ( current_theme_supports( 'menus' ) ) : ?>
 745
 746                                                                         <dl class="menu-theme-locations">
 747                                                                                 <dt class="howto"><?php _e( 'Theme locations' ); ?></dt>
 748                                                                                 <?php foreach ( $locations as $location => $description ) : ?>
 749                                                                                 <dd class="checkbox-input">
 750                                                                                         <input type="checkbox"<?php checked( isset( $menu_locations[ $location ] ) && $menu_locations[ $location ] == $nav_menu_selected_id ); ?> name="menu-locations[<?php echo esc_attr( $location ); ?>]" id="locations-<?php echo esc_attr( $location ); ?>" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" /> <label for="locations-<?php echo esc_attr( $location ); ?>"><?php echo $description; ?></label>
 751                                                                                         <?php if ( ! empty( $menu_locations[ $location ] ) && $menu_locations[ $location ] != $nav_menu_selected_id ) : ?>
 752                                                                                         <span class="theme-location-set"> <?php printf( __( "(Currently set to: %s)" ), wp_get_nav_menu_object( $menu_locations[ $location ] )->name ); ?> </span>
 753                                                                                         <?php endif; ?>
 754                                                                                 </dd>
 755                                                                                 <?php endforeach; ?>
 756                                                                         </dl>
 757
 758                                                                 <?php endif; ?>
 759
 760                                                         </div>
 761                                                 </div><!-- /#post-body-content -->
 762                                         </div><!-- /#post-body -->
 763                                         <div id="nav-menu-footer">
 764                                                 <div class="major-publishing-actions">
 765                                                         <?php if ( 0 != $menu_count && ! $add_new_screen ) : ?>
 766                                                         <span class="delete-action">
 767                                                                 <a class="submitdelete deletion menu-delete" href="<?php echo esc_url( wp_nonce_url( add_query_arg( array( 'action' => 'delete', 'menu' => $nav_menu_selected_id, admin_url() ) ), 'delete-nav_menu-' . $nav_menu_selected_id) ); ?>"><?php _e('Delete Menu'); ?></a>
 768                                                         </span><!-- END .delete-action -->
 769                                                         <?php endif; ?>
 770                                                         <div class="publishing-action">
 771                                                                 <?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false, array( 'id' => 'save_menu_header' ) ); ?>
 772                                                         </div><!-- END .publishing-action -->
 773                                                 </div><!-- END .major-publishing-actions -->
 774                                         </div><!-- /#nav-menu-footer -->
 775                                 </div><!-- /.menu-edit -->
 776                         </form><!-- /#update-nav-menu -->
 777                 </div><!-- /#menu-management -->
 778         </div><!-- /#menu-management-liquid -->
 779         </div><!-- /#nav-menus-frame -->
 780         <?php endif; ?>
 781 </div><!-- /.wrap-->
 782 <?php include( ABSPATH . 'wp-admin/admin-footer.php' ); ?>