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