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