wp-admin/js/nav-menu.js

   1 /**
   2  * WordPress Administration Navigation Menu
   3  * Interface JS functions
   4  *
   5  * @version 2.0.0
   6  *
   7  * @package WordPress
   8  * @subpackage Administration
   9  */
  10
  11 /* global menus, postboxes, columns, isRtl, navMenuL10n, ajaxurl */
  12
  13 var wpNavMenu;
  14
  15 (function($) {
  16
  17         var api;
  18
  19         api = wpNavMenu = {
  20
  21                 options : {
  22                         menuItemDepthPerLevel : 30, // Do not use directly. Use depthToPx and pxToDepth instead.
  23                         globalMaxDepth : 11
  24                 },
  25
  26                 menuList : undefined,   // Set in init.
  27                 targetList : undefined, // Set in init.
  28                 menusChanged : false,
  29                 isRTL: !! ( 'undefined' != typeof isRtl && isRtl ),
  30                 negateIfRTL: ( 'undefined' != typeof isRtl && isRtl ) ? -1 : 1,
  31
  32                 // Functions that run on init.
  33                 init : function() {
  34                         api.menuList = $('#menu-to-edit');
  35                         api.targetList = api.menuList;
  36
  37                         this.jQueryExtensions();
  38
  39                         this.attachMenuEditListeners();
  40
  41                         this.setupInputWithDefaultTitle();
  42                         this.attachQuickSearchListeners();
  43                         this.attachThemeLocationsListeners();
  44
  45                         this.attachTabsPanelListeners();
  46
  47                         this.attachUnsavedChangesListener();
  48
  49                         if ( api.menuList.length )
  50                                 this.initSortables();
  51
  52                         if ( menus.oneThemeLocationNoMenus )
  53                                 $( '#posttype-page' ).addSelectedToMenu( api.addMenuItemToBottom );
  54
  55                         this.initManageLocations();
  56
  57                         this.initAccessibility();
  58
  59                         this.initToggles();
  60
  61                         this.initPreviewing();
  62                 },
  63
  64                 jQueryExtensions : function() {
  65                         // jQuery extensions
  66                         $.fn.extend({
  67                                 menuItemDepth : function() {
  68                                         var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
  69                                         return api.pxToDepth( margin && -1 != margin.indexOf('px') ? margin.slice(0, -2) : 0 );
  70                                 },
  71                                 updateDepthClass : function(current, prev) {
  72                                         return this.each(function(){
  73                                                 var t = $(this);
  74                                                 prev = prev || t.menuItemDepth();
  75                                                 $(this).removeClass('menu-item-depth-'+ prev )
  76                                                         .addClass('menu-item-depth-'+ current );
  77                                         });
  78                                 },
  79                                 shiftDepthClass : function(change) {
  80                                         return this.each(function(){
  81                                                 var t = $(this),
  82                                                         depth = t.menuItemDepth();
  83                                                 $(this).removeClass('menu-item-depth-'+ depth )
  84                                                         .addClass('menu-item-depth-'+ (depth + change) );
  85                                         });
  86                                 },
  87                                 childMenuItems : function() {
  88                                         var result = $();
  89                                         this.each(function(){
  90                                                 var t = $(this), depth = t.menuItemDepth(), next = t.next();
  91                                                 while( next.length && next.menuItemDepth() > depth ) {
  92                                                         result = result.add( next );
  93                                                         next = next.next();
  94                                                 }
  95                                         });
  96                                         return result;
  97                                 },
  98                                 shiftHorizontally : function( dir ) {
  99                                         return this.each(function(){
 100                                                 var t = $(this),
 101                                                         depth = t.menuItemDepth(),
 102                                                         newDepth = depth + dir;
 103
 104                                                 // Change .menu-item-depth-n class
 105                                                 t.moveHorizontally( newDepth, depth );
 106                                         });
 107                                 },
 108                                 moveHorizontally : function( newDepth, depth ) {
 109                                         return this.each(function(){
 110                                                 var t = $(this),
 111                                                         children = t.childMenuItems(),
 112                                                         diff = newDepth - depth,
 113                                                         subItemText = t.find('.is-submenu');
 114
 115                                                 // Change .menu-item-depth-n class
 116                                                 t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
 117
 118                                                 // If it has children, move those too
 119                                                 if ( children ) {
 120                                                         children.each(function() {
 121                                                                 var t = $(this),
 122                                                                         thisDepth = t.menuItemDepth(),
 123                                                                         newDepth = thisDepth + diff;
 124                                                                 t.updateDepthClass(newDepth, thisDepth).updateParentMenuItemDBId();
 125                                                         });
 126                                                 }
 127
 128                                                 // Show "Sub item" helper text
 129                                                 if (0 === newDepth)
 130                                                         subItemText.hide();
 131                                                 else
 132                                                         subItemText.show();
 133                                         });
 134                                 },
 135                                 updateParentMenuItemDBId : function() {
 136                                         return this.each(function(){
 137                                                 var item = $(this),
 138                                                         input = item.find( '.menu-item-data-parent-id' ),
 139                                                         depth = parseInt( item.menuItemDepth(), 10 ),
 140                                                         parentDepth = depth - 1,
 141                                                         parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
 142
 143                                                 if ( 0 === depth ) { // Item is on the top level, has no parent
 144                                                         input.val(0);
 145                                                 } else { // Find the parent item, and retrieve its object id.
 146                                                         input.val( parent.find( '.menu-item-data-db-id' ).val() );
 147                                                 }
 148                                         });
 149                                 },
 150                                 hideAdvancedMenuItemFields : function() {
 151                                         return this.each(function(){
 152                                                 var that = $(this);
 153                                                 $('.hide-column-tog').not(':checked').each(function(){
 154                                                         that.find('.field-' + $(this).val() ).addClass('hidden-field');
 155                                                 });
 156                                         });
 157                                 },
 158                                 /**
 159                                  * Adds selected menu items to the menu.
 160                                  *
 161                                  * @param jQuery metabox The metabox jQuery object.
 162                                  */
 163                                 addSelectedToMenu : function(processMethod) {
 164                                         if ( 0 === $('#menu-to-edit').length ) {
 165                                                 return false;
 166                                         }
 167
 168                                         return this.each(function() {
 169                                                 var t = $(this), menuItems = {},
 170                                                         checkboxes = ( menus.oneThemeLocationNoMenus && 0 === t.find( '.tabs-panel-active .categorychecklist li input:checked' ).length ) ? t.find( '#page-all li input[type="checkbox"]' ) : t.find( '.tabs-panel-active .categorychecklist li input:checked' ),
 171                                                         re = /menu-item\[([^\]]*)/;
 172
 173                                                 processMethod = processMethod || api.addMenuItemToBottom;
 174
 175                                                 // If no items are checked, bail.
 176                                                 if ( !checkboxes.length )
 177                                                         return false;
 178
 179                                                 // Show the ajax spinner
 180                                                 t.find('.spinner').show();
 181
 182                                                 // Retrieve menu item data
 183                                                 $(checkboxes).each(function(){
 184                                                         var t = $(this),
 185                                                                 listItemDBIDMatch = re.exec( t.attr('name') ),
 186                                                                 listItemDBID = 'undefined' == typeof listItemDBIDMatch[1] ? 0 : parseInt(listItemDBIDMatch[1], 10);
 187
 188                                                         if ( this.className && -1 != this.className.indexOf('add-to-top') )
 189                                                                 processMethod = api.addMenuItemToTop;
 190                                                         menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
 191                                                 });
 192
 193                                                 // Add the items
 194                                                 api.addItemToMenu(menuItems, processMethod, function(){
 195                                                         // Deselect the items and hide the ajax spinner
 196                                                         checkboxes.removeAttr('checked');
 197                                                         t.find('.spinner').hide();
 198                                                 });
 199                                         });
 200                                 },
 201                                 getItemData : function( itemType, id ) {
 202                                         itemType = itemType || 'menu-item';
 203
 204                                         var itemData = {}, i,
 205                                         fields = [
 206                                                 'menu-item-db-id',
 207                                                 'menu-item-object-id',
 208                                                 'menu-item-object',
 209                                                 'menu-item-parent-id',
 210                                                 'menu-item-position',
 211                                                 'menu-item-type',
 212                                                 'menu-item-title',
 213                                                 'menu-item-url',
 214                                                 'menu-item-description',
 215                                                 'menu-item-attr-title',
 216                                                 'menu-item-target',
 217                                                 'menu-item-classes',
 218                                                 'menu-item-xfn'
 219                                         ];
 220
 221                                         if( !id && itemType == 'menu-item' ) {
 222                                                 id = this.find('.menu-item-data-db-id').val();
 223                                         }
 224
 225                                         if( !id ) return itemData;
 226
 227                                         this.find('input').each(function() {
 228                                                 var field;
 229                                                 i = fields.length;
 230                                                 while ( i-- ) {
 231                                                         if( itemType == 'menu-item' )
 232                                                                 field = fields[i] + '[' + id + ']';
 233                                                         else if( itemType == 'add-menu-item' )
 234                                                                 field = 'menu-item[' + id + '][' + fields[i] + ']';
 235
 236                                                         if (
 237                                                                 this.name &&
 238                                                                 field == this.name
 239                                                         ) {
 240                                                                 itemData[fields[i]] = this.value;
 241                                                         }
 242                                                 }
 243                                         });
 244
 245                                         return itemData;
 246                                 },
 247                                 setItemData : function( itemData, itemType, id ) { // Can take a type, such as 'menu-item', or an id.
 248                                         itemType = itemType || 'menu-item';
 249
 250                                         if( !id && itemType == 'menu-item' ) {
 251                                                 id = $('.menu-item-data-db-id', this).val();
 252                                         }
 253
 254                                         if( !id ) return this;
 255
 256                                         this.find('input').each(function() {
 257                                                 var t = $(this), field;
 258                                                 $.each( itemData, function( attr, val ) {
 259                                                         if( itemType == 'menu-item' )
 260                                                                 field = attr + '[' + id + ']';
 261                                                         else if( itemType == 'add-menu-item' )
 262                                                                 field = 'menu-item[' + id + '][' + attr + ']';
 263
 264                                                         if ( field == t.attr('name') ) {
 265                                                                 t.val( val );
 266                                                         }
 267                                                 });
 268                                         });
 269                                         return this;
 270                                 }
 271                         });
 272                 },
 273
 274                 countMenuItems : function( depth ) {
 275                         return $( '.menu-item-depth-' + depth ).length;
 276                 },
 277
 278                 moveMenuItem : function( $this, dir ) {
 279
 280                         var items, newItemPosition, newDepth,
 281                                 menuItems = $( '#menu-to-edit li' ),
 282                                 menuItemsCount = menuItems.length,
 283                                 thisItem = $this.parents( 'li.menu-item' ),
 284                                 thisItemChildren = thisItem.childMenuItems(),
 285                                 thisItemData = thisItem.getItemData(),
 286                                 thisItemDepth = parseInt( thisItem.menuItemDepth(), 10 ),
 287                                 thisItemPosition = parseInt( thisItem.index(), 10 ),
 288                                 nextItem = thisItem.next(),
 289                                 nextItemChildren = nextItem.childMenuItems(),
 290                                 nextItemDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1,
 291                                 prevItem = thisItem.prev(),
 292                                 prevItemDepth = parseInt( prevItem.menuItemDepth(), 10 ),
 293                                 prevItemId = prevItem.getItemData()['menu-item-db-id'];
 294
 295                         switch ( dir ) {
 296                         case 'up':
 297                                 newItemPosition = thisItemPosition - 1;
 298
 299                                 // Already at top
 300                                 if ( 0 === thisItemPosition )
 301                                         break;
 302
 303                                 // If a sub item is moved to top, shift it to 0 depth
 304                                 if ( 0 === newItemPosition && 0 !== thisItemDepth )
 305                                         thisItem.moveHorizontally( 0, thisItemDepth );
 306
 307                                 // If prev item is sub item, shift to match depth
 308                                 if ( 0 !== prevItemDepth )
 309                                         thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
 310
 311                                 // Does this item have sub items?
 312                                 if ( thisItemChildren ) {
 313                                         items = thisItem.add( thisItemChildren );
 314                                         // Move the entire block
 315                                         items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 316                                 } else {
 317                                         thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 318                                 }
 319                                 break;
 320                         case 'down':
 321                                 // Does this item have sub items?
 322                                 if ( thisItemChildren ) {
 323                                         items = thisItem.add( thisItemChildren ),
 324                                                 nextItem = menuItems.eq( items.length + thisItemPosition ),
 325                                                 nextItemChildren = 0 !== nextItem.childMenuItems().length;
 326
 327                                         if ( nextItemChildren ) {
 328                                                 newDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1;
 329                                                 thisItem.moveHorizontally( newDepth, thisItemDepth );
 330                                         }
 331
 332                                         // Have we reached the bottom?
 333                                         if ( menuItemsCount === thisItemPosition + items.length )
 334                                                 break;
 335
 336                                         items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
 337                                 } else {
 338                                         // If next item has sub items, shift depth
 339                                         if ( 0 !== nextItemChildren.length )
 340                                                 thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
 341
 342                                         // Have we reached the bottom
 343                                         if ( menuItemsCount === thisItemPosition + 1 )
 344                                                 break;
 345                                         thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
 346                                 }
 347                                 break;
 348                         case 'top':
 349                                 // Already at top
 350                                 if ( 0 === thisItemPosition )
 351                                         break;
 352                                 // Does this item have sub items?
 353                                 if ( thisItemChildren ) {
 354                                         items = thisItem.add( thisItemChildren );
 355                                         // Move the entire block
 356                                         items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 357                                 } else {
 358                                         thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 359                                 }
 360                                 break;
 361                         case 'left':
 362                                 // As far left as possible
 363                                 if ( 0 === thisItemDepth )
 364                                         break;
 365                                 thisItem.shiftHorizontally( -1 );
 366                                 break;
 367                         case 'right':
 368                                 // Can't be sub item at top
 369                                 if ( 0 === thisItemPosition )
 370                                         break;
 371                                 // Already sub item of prevItem
 372                                 if ( thisItemData['menu-item-parent-id'] === prevItemId )
 373                                         break;
 374                                 thisItem.shiftHorizontally( 1 );
 375                                 break;
 376                         }
 377                         $this.focus();
 378                         api.registerChange();
 379                         api.refreshKeyboardAccessibility();
 380                         api.refreshAdvancedAccessibility();
 381                 },
 382
 383                 initAccessibility : function() {
 384                         var menu = $( '#menu-to-edit' );
 385
 386                         api.refreshKeyboardAccessibility();
 387                         api.refreshAdvancedAccessibility();
 388
 389                         // Events
 390                         menu.on( 'click', '.menus-move-up', function ( e ) {
 391                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'up' );
 392                                 e.preventDefault();
 393                         });
 394                         menu.on( 'click', '.menus-move-down', function ( e ) {
 395                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'down' );
 396                                 e.preventDefault();
 397                         });
 398                         menu.on( 'click', '.menus-move-top', function ( e ) {
 399                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'top' );
 400                                 e.preventDefault();
 401                         });
 402                         menu.on( 'click', '.menus-move-left', function ( e ) {
 403                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'left' );
 404                                 e.preventDefault();
 405                         });
 406                         menu.on( 'click', '.menus-move-right', function ( e ) {
 407                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'right' );
 408                                 e.preventDefault();
 409                         });
 410                 },
 411
 412                 refreshAdvancedAccessibility : function() {
 413
 414                         // Hide all links by default
 415                         $( '.menu-item-settings .field-move a' ).css( 'display', 'none' );
 416
 417                         $( '.item-edit' ).each( function() {
 418                                 var thisLink, thisLinkText, primaryItems, itemPosition, title,
 419                                         parentItem, parentItemId, parentItemName, subItems,
 420                                         $this = $(this),
 421                                         menuItem = $this.closest( 'li.menu-item' ).first(),
 422                                         depth = menuItem.menuItemDepth(),
 423                                         isPrimaryMenuItem = ( 0 === depth ),
 424                                         itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
 425                                         position = parseInt( menuItem.index(), 10 ),
 426                                         prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
 427                                         prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
 428                                         prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
 429                                         totalMenuItems = $('#menu-to-edit li').length,
 430                                         hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 431
 432                                 // Where can they move this menu item?
 433                                 if ( 0 !== position ) {
 434                                         thisLink = menuItem.find( '.menus-move-up' );
 435                                         thisLink.prop( 'title', menus.moveUp ).css( 'display', 'inline' );
 436                                 }
 437
 438                                 if ( 0 !== position && isPrimaryMenuItem ) {
 439                                         thisLink = menuItem.find( '.menus-move-top' );
 440                                         thisLink.prop( 'title', menus.moveToTop ).css( 'display', 'inline' );
 441                                 }
 442
 443                                 if ( position + 1 !== totalMenuItems && 0 !== position ) {
 444                                         thisLink = menuItem.find( '.menus-move-down' );
 445                                         thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
 446                                 }
 447
 448                                 if ( 0 === position && 0 !== hasSameDepthSibling ) {
 449                                         thisLink = menuItem.find( '.menus-move-down' );
 450                                         thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
 451                                 }
 452
 453                                 if ( ! isPrimaryMenuItem ) {
 454                                         thisLink = menuItem.find( '.menus-move-left' ),
 455                                         thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
 456                                         thisLink.prop( 'title', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).html( thisLinkText ).css( 'display', 'inline' );
 457                                 }
 458
 459                                 if ( 0 !== position ) {
 460                                         if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
 461                                                 thisLink = menuItem.find( '.menus-move-right' ),
 462                                                 thisLinkText = menus.under.replace( '%s', prevItemNameRight );
 463                                                 thisLink.prop( 'title', menus.moveUnder.replace( '%s', prevItemNameRight ) ).html( thisLinkText ).css( 'display', 'inline' );
 464                                         }
 465                                 }
 466
 467                                 if ( isPrimaryMenuItem ) {
 468                                         primaryItems = $( '.menu-item-depth-0' ),
 469                                         itemPosition = primaryItems.index( menuItem ) + 1,
 470                                         totalMenuItems = primaryItems.length,
 471
 472                                         // String together help text for primary menu items
 473                                         title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
 474                                 } else {
 475                                         parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
 476                                         parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
 477                                         parentItemName = parentItem.find( '.menu-item-title' ).text(),
 478                                         subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
 479                                         itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 480
 481                                         // String together help text for sub menu items
 482                                         title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
 483                                 }
 484
 485                                 $this.prop('title', title).html( title );
 486                         });
 487                 },
 488
 489                 refreshKeyboardAccessibility : function() {
 490                         $( '.item-edit' ).off( 'focus' ).on( 'focus', function(){
 491                                 $(this).off( 'keydown' ).on( 'keydown', function(e){
 492
 493                                         var arrows,
 494                                                 $this = $( this ),
 495                                                 thisItem = $this.parents( 'li.menu-item' ),
 496                                                 thisItemData = thisItem.getItemData();
 497
 498                                         // Bail if it's not an arrow key
 499                                         if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
 500                                                 return;
 501
 502                                         // Avoid multiple keydown events
 503                                         $this.off('keydown');
 504
 505                                         // Bail if there is only one menu item
 506                                         if ( 1 === $('#menu-to-edit li').length )
 507                                                 return;
 508
 509                                         // If RTL, swap left/right arrows
 510                                         arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
 511                                         if ( $('body').hasClass('rtl') )
 512                                                 arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
 513
 514                                         switch ( arrows[e.which] ) {
 515                                         case 'up':
 516                                                 api.moveMenuItem( $this, 'up' );
 517                                                 break;
 518                                         case 'down':
 519                                                 api.moveMenuItem( $this, 'down' );
 520                                                 break;
 521                                         case 'left':
 522                                                 api.moveMenuItem( $this, 'left' );
 523                                                 break;
 524                                         case 'right':
 525                                                 api.moveMenuItem( $this, 'right' );
 526                                                 break;
 527                                         }
 528                                         // Put focus back on same menu item
 529                                         $( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
 530                                         return false;
 531                                 });
 532                         });
 533                 },
 534
 535                 initPreviewing : function() {
 536                         // Update the item handle title when the navigation label is changed.
 537                         $( '#menu-to-edit' ).on( 'change input', '.edit-menu-item-title', function(e) {
 538                                 var input = $( e.currentTarget ), title, titleEl;
 539                                 title = input.val();
 540                                 titleEl = input.closest( '.menu-item' ).find( '.menu-item-title' );
 541                                 // Don't update to empty title.
 542                                 if ( title ) {
 543                                         titleEl.text( title ).removeClass( 'no-title' );
 544                                 } else {
 545                                         titleEl.text( navMenuL10n.untitled ).addClass( 'no-title' );
 546                                 }
 547                         } );
 548                 },
 549
 550                 initToggles : function() {
 551                         // init postboxes
 552                         postboxes.add_postbox_toggles('nav-menus');
 553
 554                         // adjust columns functions for menus UI
 555                         columns.useCheckboxesForHidden();
 556                         columns.checked = function(field) {
 557                                 $('.field-' + field).removeClass('hidden-field');
 558                         };
 559                         columns.unchecked = function(field) {
 560                                 $('.field-' + field).addClass('hidden-field');
 561                         };
 562                         // hide fields
 563                         api.menuList.hideAdvancedMenuItemFields();
 564
 565                         $('.hide-postbox-tog').click(function () {
 566                                 var hidden = $( '.accordion-container li.accordion-section' ).filter(':hidden').map(function() { return this.id; }).get().join(',');
 567                                 $.post(ajaxurl, {
 568                                         action: 'closed-postboxes',
 569                                         hidden: hidden,
 570                                         closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
 571                                         page: 'nav-menus'
 572                                 });
 573                         });
 574                 },
 575
 576                 initSortables : function() {
 577                         var currentDepth = 0, originalDepth, minDepth, maxDepth,
 578                                 prev, next, prevBottom, nextThreshold, helperHeight, transport,
 579                                 menuEdge = api.menuList.offset().left,
 580                                 body = $('body'), maxChildDepth,
 581                                 menuMaxDepth = initialMenuMaxDepth();
 582
 583                         if( 0 !== $( '#menu-to-edit li' ).length )
 584                                 $( '.drag-instructions' ).show();
 585
 586                         // Use the right edge if RTL.
 587                         menuEdge += api.isRTL ? api.menuList.width() : 0;
 588
 589                         api.menuList.sortable({
 590                                 handle: '.menu-item-handle',
 591                                 placeholder: 'sortable-placeholder',
 592                                 start: function(e, ui) {
 593                                         var height, width, parent, children, tempHolder;
 594
 595                                         // handle placement for rtl orientation
 596                                         if ( api.isRTL )
 597                                                 ui.item[0].style.right = 'auto';
 598
 599                                         transport = ui.item.children('.menu-item-transport');
 600
 601                                         // Set depths. currentDepth must be set before children are located.
 602                                         originalDepth = ui.item.menuItemDepth();
 603                                         updateCurrentDepth(ui, originalDepth);
 604
 605                                         // Attach child elements to parent
 606                                         // Skip the placeholder
 607                                         parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
 608                                         children = parent.childMenuItems();
 609                                         transport.append( children );
 610
 611                                         // Update the height of the placeholder to match the moving item.
 612                                         height = transport.outerHeight();
 613                                         // If there are children, account for distance between top of children and parent
 614                                         height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
 615                                         height += ui.helper.outerHeight();
 616                                         helperHeight = height;
 617                                         height -= 2; // Subtract 2 for borders
 618                                         ui.placeholder.height(height);
 619
 620                                         // Update the width of the placeholder to match the moving item.
 621                                         maxChildDepth = originalDepth;
 622                                         children.each(function(){
 623                                                 var depth = $(this).menuItemDepth();
 624                                                 maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
 625                                         });
 626                                         width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width
 627                                         width += api.depthToPx(maxChildDepth - originalDepth); // Account for children
 628                                         width -= 2; // Subtract 2 for borders
 629                                         ui.placeholder.width(width);
 630
 631                                         // Update the list of menu items.
 632                                         tempHolder = ui.placeholder.next();
 633                                         tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder
 634                                         ui.placeholder.detach(); // detach or jQuery UI will think the placeholder is a menu item
 635                                         $(this).sortable( 'refresh' ); // The children aren't sortable. We should let jQ UI know.
 636                                         ui.item.after( ui.placeholder ); // reattach the placeholder.
 637                                         tempHolder.css('margin-top', 0); // reset the margin
 638
 639                                         // Now that the element is complete, we can update...
 640                                         updateSharedVars(ui);
 641                                 },
 642                                 stop: function(e, ui) {
 643                                         var children, subMenuTitle,
 644                                                 depthChange = currentDepth - originalDepth;
 645
 646                                         // Return child elements to the list
 647                                         children = transport.children().insertAfter(ui.item);
 648
 649                                         // Add "sub menu" description
 650                                         subMenuTitle = ui.item.find( '.item-title .is-submenu' );
 651                                         if ( 0 < currentDepth )
 652                                                 subMenuTitle.show();
 653                                         else
 654                                                 subMenuTitle.hide();
 655
 656                                         // Update depth classes
 657                                         if ( 0 !== depthChange ) {
 658                                                 ui.item.updateDepthClass( currentDepth );
 659                                                 children.shiftDepthClass( depthChange );
 660                                                 updateMenuMaxDepth( depthChange );
 661                                         }
 662                                         // Register a change
 663                                         api.registerChange();
 664                                         // Update the item data.
 665                                         ui.item.updateParentMenuItemDBId();
 666
 667                                         // address sortable's incorrectly-calculated top in opera
 668                                         ui.item[0].style.top = 0;
 669
 670                                         // handle drop placement for rtl orientation
 671                                         if ( api.isRTL ) {
 672                                                 ui.item[0].style.left = 'auto';
 673                                                 ui.item[0].style.right = 0;
 674                                         }
 675
 676                                         api.refreshKeyboardAccessibility();
 677                                         api.refreshAdvancedAccessibility();
 678                                 },
 679                                 change: function(e, ui) {
 680                                         // Make sure the placeholder is inside the menu.
 681                                         // Otherwise fix it, or we're in trouble.
 682                                         if( ! ui.placeholder.parent().hasClass('menu') )
 683                                                 (prev.length) ? prev.after( ui.placeholder ) : api.menuList.prepend( ui.placeholder );
 684
 685                                         updateSharedVars(ui);
 686                                 },
 687                                 sort: function(e, ui) {
 688                                         var offset = ui.helper.offset(),
 689                                                 edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
 690                                                 depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
 691                                         // Check and correct if depth is not within range.
 692                                         // Also, if the dragged element is dragged upwards over
 693                                         // an item, shift the placeholder to a child position.
 694                                         if ( depth > maxDepth || offset.top < prevBottom ) depth = maxDepth;
 695                                         else if ( depth < minDepth ) depth = minDepth;
 696
 697                                         if( depth != currentDepth )
 698                                                 updateCurrentDepth(ui, depth);
 699
 700                                         // If we overlap the next element, manually shift downwards
 701                                         if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
 702                                                 next.after( ui.placeholder );
 703                                                 updateSharedVars( ui );
 704                                                 $( this ).sortable( 'refreshPositions' );
 705                                         }
 706                                 }
 707                         });
 708
 709                         function updateSharedVars(ui) {
 710                                 var depth;
 711
 712                                 prev = ui.placeholder.prev();
 713                                 next = ui.placeholder.next();
 714
 715                                 // Make sure we don't select the moving item.
 716                                 if( prev[0] == ui.item[0] ) prev = prev.prev();
 717                                 if( next[0] == ui.item[0] ) next = next.next();
 718
 719                                 prevBottom = (prev.length) ? prev.offset().top + prev.height() : 0;
 720                                 nextThreshold = (next.length) ? next.offset().top + next.height() / 3 : 0;
 721                                 minDepth = (next.length) ? next.menuItemDepth() : 0;
 722
 723                                 if( prev.length )
 724                                         maxDepth = ( (depth = prev.menuItemDepth() + 1) > api.options.globalMaxDepth ) ? api.options.globalMaxDepth : depth;
 725                                 else
 726                                         maxDepth = 0;
 727                         }
 728
 729                         function updateCurrentDepth(ui, depth) {
 730                                 ui.placeholder.updateDepthClass( depth, currentDepth );
 731                                 currentDepth = depth;
 732                         }
 733
 734                         function initialMenuMaxDepth() {
 735                                 if( ! body[0].className ) return 0;
 736                                 var match = body[0].className.match(/menu-max-depth-(\d+)/);
 737                                 return match && match[1] ? parseInt( match[1], 10 ) : 0;
 738                         }
 739
 740                         function updateMenuMaxDepth( depthChange ) {
 741                                 var depth, newDepth = menuMaxDepth;
 742                                 if ( depthChange === 0 ) {
 743                                         return;
 744                                 } else if ( depthChange > 0 ) {
 745                                         depth = maxChildDepth + depthChange;
 746                                         if( depth > menuMaxDepth )
 747                                                 newDepth = depth;
 748                                 } else if ( depthChange < 0 && maxChildDepth == menuMaxDepth ) {
 749                                         while( ! $('.menu-item-depth-' + newDepth, api.menuList).length && newDepth > 0 )
 750                                                 newDepth--;
 751                                 }
 752                                 // Update the depth class.
 753                                 body.removeClass( 'menu-max-depth-' + menuMaxDepth ).addClass( 'menu-max-depth-' + newDepth );
 754                                 menuMaxDepth = newDepth;
 755                         }
 756                 },
 757
 758                 initManageLocations : function () {
 759                         $('#menu-locations-wrap form').submit(function(){
 760                                 window.onbeforeunload = null;
 761                         });
 762                         $('.menu-location-menus select').on('change', function () {
 763                                 var editLink = $(this).closest('tr').find('.locations-edit-menu-link');
 764                                 if ($(this).find('option:selected').data('orig'))
 765                                         editLink.show();
 766                                 else
 767                                         editLink.hide();
 768                         });
 769                 },
 770
 771                 attachMenuEditListeners : function() {
 772                         var that = this;
 773                         $('#update-nav-menu').bind('click', function(e) {
 774                                 if ( e.target && e.target.className ) {
 775                                         if ( -1 != e.target.className.indexOf('item-edit') ) {
 776                                                 return that.eventOnClickEditLink(e.target);
 777                                         } else if ( -1 != e.target.className.indexOf('menu-save') ) {
 778                                                 return that.eventOnClickMenuSave(e.target);
 779                                         } else if ( -1 != e.target.className.indexOf('menu-delete') ) {
 780                                                 return that.eventOnClickMenuDelete(e.target);
 781                                         } else if ( -1 != e.target.className.indexOf('item-delete') ) {
 782                                                 return that.eventOnClickMenuItemDelete(e.target);
 783                                         } else if ( -1 != e.target.className.indexOf('item-cancel') ) {
 784                                                 return that.eventOnClickCancelLink(e.target);
 785                                         }
 786                                 }
 787                         });
 788                         $('#add-custom-links input[type="text"]').keypress(function(e){
 789                                 if ( e.keyCode === 13 ) {
 790                                         e.preventDefault();
 791                                         $( '#submit-customlinkdiv' ).click();
 792                                 }
 793                         });
 794                 },
 795
 796                 /**
 797                  * An interface for managing default values for input elements
 798                  * that is both JS and accessibility-friendly.
 799                  *
 800                  * Input elements that add the class 'input-with-default-title'
 801                  * will have their values set to the provided HTML title when empty.
 802                  */
 803                 setupInputWithDefaultTitle : function() {
 804                         var name = 'input-with-default-title';
 805
 806                         $('.' + name).each( function(){
 807                                 var $t = $(this), title = $t.attr('title'), val = $t.val();
 808                                 $t.data( name, title );
 809
 810                                 if( '' === val ) $t.val( title );
 811                                 else if ( title == val ) return;
 812                                 else $t.removeClass( name );
 813                         }).focus( function(){
 814                                 var $t = $(this);
 815                                 if( $t.val() == $t.data(name) )
 816                                         $t.val('').removeClass( name );
 817                         }).blur( function(){
 818                                 var $t = $(this);
 819                                 if( '' === $t.val() )
 820                                         $t.addClass( name ).val( $t.data(name) );
 821                         });
 822
 823                         $( '.blank-slate .input-with-default-title' ).focus();
 824                 },
 825
 826                 attachThemeLocationsListeners : function() {
 827                         var loc = $('#nav-menu-theme-locations'), params = {};
 828                         params.action = 'menu-locations-save';
 829                         params['menu-settings-column-nonce'] = $('#menu-settings-column-nonce').val();
 830                         loc.find('input[type="submit"]').click(function() {
 831                                 loc.find('select').each(function() {
 832                                         params[this.name] = $(this).val();
 833                                 });
 834                                 loc.find('.spinner').show();
 835                                 $.post( ajaxurl, params, function() {
 836                                         loc.find('.spinner').hide();
 837                                 });
 838                                 return false;
 839                         });
 840                 },
 841
 842                 attachQuickSearchListeners : function() {
 843                         var searchTimer;
 844
 845                         $('.quick-search').keypress(function(e){
 846                                 var t = $(this);
 847
 848                                 if( 13 == e.which ) {
 849                                         api.updateQuickSearchResults( t );
 850                                         return false;
 851                                 }
 852
 853                                 if( searchTimer ) clearTimeout(searchTimer);
 854
 855                                 searchTimer = setTimeout(function(){
 856                                         api.updateQuickSearchResults( t );
 857                                 }, 400);
 858                         }).attr('autocomplete','off');
 859                 },
 860
 861                 updateQuickSearchResults : function(input) {
 862                         var panel, params,
 863                         minSearchLength = 2,
 864                         q = input.val();
 865
 866                         if( q.length < minSearchLength ) return;
 867
 868                         panel = input.parents('.tabs-panel');
 869                         params = {
 870                                 'action': 'menu-quick-search',
 871                                 'response-format': 'markup',
 872                                 'menu': $('#menu').val(),
 873                                 'menu-settings-column-nonce': $('#menu-settings-column-nonce').val(),
 874                                 'q': q,
 875                                 'type': input.attr('name')
 876                         };
 877
 878                         $('.spinner', panel).show();
 879
 880                         $.post( ajaxurl, params, function(menuMarkup) {
 881                                 api.processQuickSearchQueryResponse(menuMarkup, params, panel);
 882                         });
 883                 },
 884
 885                 addCustomLink : function( processMethod ) {
 886                         var url = $('#custom-menu-item-url').val(),
 887                                 label = $('#custom-menu-item-name').val();
 888
 889                         processMethod = processMethod || api.addMenuItemToBottom;
 890
 891                         if ( '' === url || 'http://' == url )
 892                                 return false;
 893
 894                         // Show the ajax spinner
 895                         $('.customlinkdiv .spinner').show();
 896                         this.addLinkToMenu( url, label, processMethod, function() {
 897                                 // Remove the ajax spinner
 898                                 $('.customlinkdiv .spinner').hide();
 899                                 // Set custom link form back to defaults
 900                                 $('#custom-menu-item-name').val('').blur();
 901                                 $('#custom-menu-item-url').val('http://');
 902                         });
 903                 },
 904
 905                 addLinkToMenu : function(url, label, processMethod, callback) {
 906                         processMethod = processMethod || api.addMenuItemToBottom;
 907                         callback = callback || function(){};
 908
 909                         api.addItemToMenu({
 910                                 '-1': {
 911                                         'menu-item-type': 'custom',
 912                                         'menu-item-url': url,
 913                                         'menu-item-title': label
 914                                 }
 915                         }, processMethod, callback);
 916                 },
 917
 918                 addItemToMenu : function(menuItem, processMethod, callback) {
 919                         var menu = $('#menu').val(),
 920                                 nonce = $('#menu-settings-column-nonce').val(),
 921                                 params;
 922
 923                         processMethod = processMethod || function(){};
 924                         callback = callback || function(){};
 925
 926                         params = {
 927                                 'action': 'add-menu-item',
 928                                 'menu': menu,
 929                                 'menu-settings-column-nonce': nonce,
 930                                 'menu-item': menuItem
 931                         };
 932
 933                         $.post( ajaxurl, params, function(menuMarkup) {
 934                                 var ins = $('#menu-instructions');
 935
 936                                 menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces
 937                                 processMethod(menuMarkup, params);
 938
 939                                 // Make it stand out a bit more visually, by adding a fadeIn
 940                                 $( 'li.pending' ).hide().fadeIn('slow');
 941                                 $( '.drag-instructions' ).show();
 942                                 if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
 943                                         ins.addClass( 'menu-instructions-inactive' );
 944
 945                                 callback();
 946                         });
 947                 },
 948
 949                 /**
 950                  * Process the add menu item request response into menu list item.
 951                  *
 952                  * @param string menuMarkup The text server response of menu item markup.
 953                  * @param object req The request arguments.
 954                  */
 955                 addMenuItemToBottom : function( menuMarkup ) {
 956                         $(menuMarkup).hideAdvancedMenuItemFields().appendTo( api.targetList );
 957                         api.refreshKeyboardAccessibility();
 958                         api.refreshAdvancedAccessibility();
 959                 },
 960
 961                 addMenuItemToTop : function( menuMarkup ) {
 962                         $(menuMarkup).hideAdvancedMenuItemFields().prependTo( api.targetList );
 963                         api.refreshKeyboardAccessibility();
 964                         api.refreshAdvancedAccessibility();
 965                 },
 966
 967                 attachUnsavedChangesListener : function() {
 968                         $('#menu-management input, #menu-management select, #menu-management, #menu-management textarea, .menu-location-menus select').change(function(){
 969                                 api.registerChange();
 970                         });
 971
 972                         if ( 0 !== $('#menu-to-edit').length || 0 !== $('.menu-location-menus select').length ) {
 973                                 window.onbeforeunload = function(){
 974                                         if ( api.menusChanged )
 975                                                 return navMenuL10n.saveAlert;
 976                                 };
 977                         } else {
 978                                 // Make the post boxes read-only, as they can't be used yet
 979                                 $( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
 980                         }
 981                 },
 982
 983                 registerChange : function() {
 984                         api.menusChanged = true;
 985                 },
 986
 987                 attachTabsPanelListeners : function() {
 988                         $('#menu-settings-column').bind('click', function(e) {
 989                                 var selectAreaMatch, panelId, wrapper, items,
 990                                         target = $(e.target);
 991
 992                                 if ( target.hasClass('nav-tab-link') ) {
 993
 994                                         panelId = target.data( 'type' );
 995
 996                                         wrapper = target.parents('.accordion-section-content').first();
 997
 998                                         // upon changing tabs, we want to uncheck all checkboxes
 999                                         $('input', wrapper).removeAttr('checked');
1000
1001                                         $('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
1002                                         $('#' + panelId, wrapper).removeClass('tabs-panel-inactive').addClass('tabs-panel-active');
1003
1004                                         $('.tabs', wrapper).removeClass('tabs');
1005                                         target.parent().addClass('tabs');
1006
1007                                         // select the search bar
1008                                         $('.quick-search', wrapper).focus();
1009
1010                                         e.preventDefault();
1011                                 } else if ( target.hasClass('select-all') ) {
1012                                         selectAreaMatch = /#(.*)$/.exec(e.target.href);
1013                                         if ( selectAreaMatch && selectAreaMatch[1] ) {
1014                                                 items = $('#' + selectAreaMatch[1] + ' .tabs-panel-active .menu-item-title input');
1015                                                 if( items.length === items.filter(':checked').length )
1016                                                         items.removeAttr('checked');
1017                                                 else
1018                                                         items.prop('checked', true);
1019                                                 return false;
1020                                         }
1021                                 } else if ( target.hasClass('submit-add-to-menu') ) {
1022                                         api.registerChange();
1023
1024                                         if ( e.target.id && 'submit-customlinkdiv' == e.target.id )
1025                                                 api.addCustomLink( api.addMenuItemToBottom );
1026                                         else if ( e.target.id && -1 != e.target.id.indexOf('submit-') )
1027                                                 $('#' + e.target.id.replace(/submit-/, '')).addSelectedToMenu( api.addMenuItemToBottom );
1028                                         return false;
1029                                 } else if ( target.hasClass('page-numbers') ) {
1030                                         $.post( ajaxurl, e.target.href.replace(/.*\?/, '').replace(/action=([^&]*)/, '') + '&action=menu-get-metabox',
1031                                                 function( resp ) {
1032                                                         if ( -1 == resp.indexOf('replace-id') )
1033                                                                 return;
1034
1035                                                         var metaBoxData = $.parseJSON(resp),
1036                                                         toReplace = document.getElementById(metaBoxData['replace-id']),
1037                                                         placeholder = document.createElement('div'),
1038                                                         wrap = document.createElement('div');
1039
1040                                                         if ( ! metaBoxData.markup || ! toReplace )
1041                                                                 return;
1042
1043                                                         wrap.innerHTML = metaBoxData.markup ? metaBoxData.markup : '';
1044
1045                                                         toReplace.parentNode.insertBefore( placeholder, toReplace );
1046                                                         placeholder.parentNode.removeChild( toReplace );
1047
1048                                                         placeholder.parentNode.insertBefore( wrap, placeholder );
1049
1050                                                         placeholder.parentNode.removeChild( placeholder );
1051
1052                                                 }
1053                                         );
1054
1055                                         return false;
1056                                 }
1057                         });
1058                 },
1059
1060                 eventOnClickEditLink : function(clickedEl) {
1061                         var settings, item,
1062                         matchedSection = /#(.*)$/.exec(clickedEl.href);
1063                         if ( matchedSection && matchedSection[1] ) {
1064                                 settings = $('#'+matchedSection[1]);
1065                                 item = settings.parent();
1066                                 if( 0 !== item.length ) {
1067                                         if( item.hasClass('menu-item-edit-inactive') ) {
1068                                                 if( ! settings.data('menu-item-data') ) {
1069                                                         settings.data( 'menu-item-data', settings.getItemData() );
1070                                                 }
1071                                                 settings.slideDown('fast');
1072                                                 item.removeClass('menu-item-edit-inactive')
1073                                                         .addClass('menu-item-edit-active');
1074                                         } else {
1075                                                 settings.slideUp('fast');
1076                                                 item.removeClass('menu-item-edit-active')
1077                                                         .addClass('menu-item-edit-inactive');
1078                                         }
1079                                         return false;
1080                                 }
1081                         }
1082                 },
1083
1084                 eventOnClickCancelLink : function(clickedEl) {
1085                         var settings = $( clickedEl ).closest( '.menu-item-settings' ),
1086                                 thisMenuItem = $( clickedEl ).closest( '.menu-item' );
1087                         thisMenuItem.removeClass('menu-item-edit-active').addClass('menu-item-edit-inactive');
1088                         settings.setItemData( settings.data('menu-item-data') ).hide();
1089                         return false;
1090                 },
1091
1092                 eventOnClickMenuSave : function() {
1093                         var locs = '',
1094                         menuName = $('#menu-name'),
1095                         menuNameVal = menuName.val();
1096                         // Cancel and warn if invalid menu name
1097                         if( !menuNameVal || menuNameVal == menuName.attr('title') || !menuNameVal.replace(/\s+/, '') ) {
1098                                 menuName.parent().addClass('form-invalid');
1099                                 return false;
1100                         }
1101                         // Copy menu theme locations
1102                         $('#nav-menu-theme-locations select').each(function() {
1103                                 locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
1104                         });
1105                         $('#update-nav-menu').append( locs );
1106                         // Update menu item position data
1107                         api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
1108                         window.onbeforeunload = null;
1109
1110                         return true;
1111                 },
1112
1113                 eventOnClickMenuDelete : function() {
1114                         // Delete warning AYS
1115                         if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
1116                                 window.onbeforeunload = null;
1117                                 return true;
1118                         }
1119                         return false;
1120                 },
1121
1122                 eventOnClickMenuItemDelete : function(clickedEl) {
1123                         var itemID = parseInt(clickedEl.id.replace('delete-', ''), 10);
1124                         api.removeMenuItem( $('#menu-item-' + itemID) );
1125                         api.registerChange();
1126                         return false;
1127                 },
1128
1129                 /**
1130                  * Process the quick search response into a search result
1131                  *
1132                  * @param string resp The server response to the query.
1133                  * @param object req The request arguments.
1134                  * @param jQuery panel The tabs panel we're searching in.
1135                  */
1136                 processQuickSearchQueryResponse : function(resp, req, panel) {
1137                         var matched, newID,
1138                         takenIDs = {},
1139                         form = document.getElementById('nav-menu-meta'),
1140                         pattern = /menu-item[(\[^]\]*/,
1141                         $items = $('<div>').html(resp).find('li'),
1142                         $item;
1143
1144                         if( ! $items.length ) {
1145                                 $('.categorychecklist', panel).html( '<li><p>' + navMenuL10n.noResultsFound + '</p></li>' );
1146                                 $('.spinner', panel).hide();
1147                                 return;
1148                         }
1149
1150                         $items.each(function(){
1151                                 $item = $(this);
1152
1153                                 // make a unique DB ID number
1154                                 matched = pattern.exec($item.html());
1155
1156                                 if ( matched && matched[1] ) {
1157                                         newID = matched[1];
1158                                         while( form.elements['menu-item[' + newID + '][menu-item-type]'] || takenIDs[ newID ] ) {
1159                                                 newID--;
1160                                         }
1161
1162                                         takenIDs[newID] = true;
1163                                         if ( newID != matched[1] ) {
1164                                                 $item.html( $item.html().replace(new RegExp(
1165                                                         'menu-item\\[' + matched[1] + '\\]', 'g'),
1166                                                         'menu-item[' + newID + ']'
1167                                                 ) );
1168                                         }
1169                                 }
1170                         });
1171
1172                         $('.categorychecklist', panel).html( $items );
1173                         $('.spinner', panel).hide();
1174                 },
1175
1176                 removeMenuItem : function(el) {
1177                         var children = el.childMenuItems();
1178
1179                         el.addClass('deleting').animate({
1180                                         opacity : 0,
1181                                         height: 0
1182                                 }, 350, function() {
1183                                         var ins = $('#menu-instructions');
1184                                         el.remove();
1185                                         children.shiftDepthClass( -1 ).updateParentMenuItemDBId();
1186                                         if ( 0 === $( '#menu-to-edit li' ).length ) {
1187                                                 $( '.drag-instructions' ).hide();
1188                                                 ins.removeClass( 'menu-instructions-inactive' );
1189                                         }
1190                                 });
1191                 },
1192
1193                 depthToPx : function(depth) {
1194                         return depth * api.options.menuItemDepthPerLevel;
1195                 },
1196
1197                 pxToDepth : function(px) {
1198                         return Math.floor(px / api.options.menuItemDepthPerLevel);
1199                 }
1200
1201         };
1202
1203         $(document).ready(function(){ wpNavMenu.init(); });
1204
1205 })(jQuery);