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                         sortableItems:   '> *',
  25                         targetTolerance: 0
  26                 },
  27
  28                 menuList : undefined,   // Set in init.
  29                 targetList : undefined, // Set in init.
  30                 menusChanged : false,
  31                 isRTL: !! ( 'undefined' != typeof isRtl && isRtl ),
  32                 negateIfRTL: ( 'undefined' != typeof isRtl && isRtl ) ? -1 : 1,
  33
  34                 // Functions that run on init.
  35                 init : function() {
  36                         api.menuList = $('#menu-to-edit');
  37                         api.targetList = api.menuList;
  38
  39                         this.jQueryExtensions();
  40
  41                         this.attachMenuEditListeners();
  42
  43                         this.setupInputWithDefaultTitle();
  44                         this.attachQuickSearchListeners();
  45                         this.attachThemeLocationsListeners();
  46
  47                         this.attachTabsPanelListeners();
  48
  49                         this.attachUnsavedChangesListener();
  50
  51                         if ( api.menuList.length )
  52                                 this.initSortables();
  53
  54                         if ( menus.oneThemeLocationNoMenus )
  55                                 $( '#posttype-page' ).addSelectedToMenu( api.addMenuItemToBottom );
  56
  57                         this.initManageLocations();
  58
  59                         this.initAccessibility();
  60
  61                         this.initToggles();
  62
  63                         this.initPreviewing();
  64                 },
  65
  66                 jQueryExtensions : function() {
  67                         // jQuery extensions
  68                         $.fn.extend({
  69                                 menuItemDepth : function() {
  70                                         var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
  71                                         return api.pxToDepth( margin && -1 != margin.indexOf('px') ? margin.slice(0, -2) : 0 );
  72                                 },
  73                                 updateDepthClass : function(current, prev) {
  74                                         return this.each(function(){
  75                                                 var t = $(this);
  76                                                 prev = prev || t.menuItemDepth();
  77                                                 $(this).removeClass('menu-item-depth-'+ prev )
  78                                                         .addClass('menu-item-depth-'+ current );
  79                                         });
  80                                 },
  81                                 shiftDepthClass : function(change) {
  82                                         return this.each(function(){
  83                                                 var t = $(this),
  84                                                         depth = t.menuItemDepth();
  85                                                 $(this).removeClass('menu-item-depth-'+ depth )
  86                                                         .addClass('menu-item-depth-'+ (depth + change) );
  87                                         });
  88                                 },
  89                                 childMenuItems : function() {
  90                                         var result = $();
  91                                         this.each(function(){
  92                                                 var t = $(this), depth = t.menuItemDepth(), next = t.next( '.menu-item' );
  93                                                 while( next.length && next.menuItemDepth() > depth ) {
  94                                                         result = result.add( next );
  95                                                         next = next.next( '.menu-item' );
  96                                                 }
  97                                         });
  98                                         return result;
  99                                 },
 100                                 shiftHorizontally : function( dir ) {
 101                                         return this.each(function(){
 102                                                 var t = $(this),
 103                                                         depth = t.menuItemDepth(),
 104                                                         newDepth = depth + dir;
 105
 106                                                 // Change .menu-item-depth-n class
 107                                                 t.moveHorizontally( newDepth, depth );
 108                                         });
 109                                 },
 110                                 moveHorizontally : function( newDepth, depth ) {
 111                                         return this.each(function(){
 112                                                 var t = $(this),
 113                                                         children = t.childMenuItems(),
 114                                                         diff = newDepth - depth,
 115                                                         subItemText = t.find('.is-submenu');
 116
 117                                                 // Change .menu-item-depth-n class
 118                                                 t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
 119
 120                                                 // If it has children, move those too
 121                                                 if ( children ) {
 122                                                         children.each(function() {
 123                                                                 var t = $(this),
 124                                                                         thisDepth = t.menuItemDepth(),
 125                                                                         newDepth = thisDepth + diff;
 126                                                                 t.updateDepthClass(newDepth, thisDepth).updateParentMenuItemDBId();
 127                                                         });
 128                                                 }
 129
 130                                                 // Show "Sub item" helper text
 131                                                 if (0 === newDepth)
 132                                                         subItemText.hide();
 133                                                 else
 134                                                         subItemText.show();
 135                                         });
 136                                 },
 137                                 updateParentMenuItemDBId : function() {
 138                                         return this.each(function(){
 139                                                 var item = $(this),
 140                                                         input = item.find( '.menu-item-data-parent-id' ),
 141                                                         depth = parseInt( item.menuItemDepth(), 10 ),
 142                                                         parentDepth = depth - 1,
 143                                                         parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
 144
 145                                                 if ( 0 === depth ) { // Item is on the top level, has no parent
 146                                                         input.val(0);
 147                                                 } else { // Find the parent item, and retrieve its object id.
 148                                                         input.val( parent.find( '.menu-item-data-db-id' ).val() );
 149                                                 }
 150                                         });
 151                                 },
 152                                 hideAdvancedMenuItemFields : function() {
 153                                         return this.each(function(){
 154                                                 var that = $(this);
 155                                                 $('.hide-column-tog').not(':checked').each(function(){
 156                                                         that.find('.field-' + $(this).val() ).addClass('hidden-field');
 157                                                 });
 158                                         });
 159                                 },
 160                                 /**
 161                                  * Adds selected menu items to the menu.
 162                                  *
 163                                  * @param jQuery metabox The metabox jQuery object.
 164                                  */
 165                                 addSelectedToMenu : function(processMethod) {
 166                                         if ( 0 === $('#menu-to-edit').length ) {
 167                                                 return false;
 168                                         }
 169
 170                                         return this.each(function() {
 171                                                 var t = $(this), menuItems = {},
 172                                                         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' ),
 173                                                         re = /menu-item\[([^\]]*)/;
 174
 175                                                 processMethod = processMethod || api.addMenuItemToBottom;
 176
 177                                                 // If no items are checked, bail.
 178                                                 if ( !checkboxes.length )
 179                                                         return false;
 180
 181                                                 // Show the ajax spinner
 182                                                 t.find( '.spinner' ).addClass( 'is-active' );
 183
 184                                                 // Retrieve menu item data
 185                                                 $(checkboxes).each(function(){
 186                                                         var t = $(this),
 187                                                                 listItemDBIDMatch = re.exec( t.attr('name') ),
 188                                                                 listItemDBID = 'undefined' == typeof listItemDBIDMatch[1] ? 0 : parseInt(listItemDBIDMatch[1], 10);
 189
 190                                                         if ( this.className && -1 != this.className.indexOf('add-to-top') )
 191                                                                 processMethod = api.addMenuItemToTop;
 192                                                         menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
 193                                                 });
 194
 195                                                 // Add the items
 196                                                 api.addItemToMenu(menuItems, processMethod, function(){
 197                                                         // Deselect the items and hide the ajax spinner
 198                                                         checkboxes.removeAttr('checked');
 199                                                         t.find( '.spinner' ).removeClass( 'is-active' );
 200                                                 });
 201                                         });
 202                                 },
 203                                 getItemData : function( itemType, id ) {
 204                                         itemType = itemType || 'menu-item';
 205
 206                                         var itemData = {}, i,
 207                                         fields = [
 208                                                 'menu-item-db-id',
 209                                                 'menu-item-object-id',
 210                                                 'menu-item-object',
 211                                                 'menu-item-parent-id',
 212                                                 'menu-item-position',
 213                                                 'menu-item-type',
 214                                                 'menu-item-title',
 215                                                 'menu-item-url',
 216                                                 'menu-item-description',
 217                                                 'menu-item-attr-title',
 218                                                 'menu-item-target',
 219                                                 'menu-item-classes',
 220                                                 'menu-item-xfn'
 221                                         ];
 222
 223                                         if( !id && itemType == 'menu-item' ) {
 224                                                 id = this.find('.menu-item-data-db-id').val();
 225                                         }
 226
 227                                         if( !id ) return itemData;
 228
 229                                         this.find('input').each(function() {
 230                                                 var field;
 231                                                 i = fields.length;
 232                                                 while ( i-- ) {
 233                                                         if( itemType == 'menu-item' )
 234                                                                 field = fields[i] + '[' + id + ']';
 235                                                         else if( itemType == 'add-menu-item' )
 236                                                                 field = 'menu-item[' + id + '][' + fields[i] + ']';
 237
 238                                                         if (
 239                                                                 this.name &&
 240                                                                 field == this.name
 241                                                         ) {
 242                                                                 itemData[fields[i]] = this.value;
 243                                                         }
 244                                                 }
 245                                         });
 246
 247                                         return itemData;
 248                                 },
 249                                 setItemData : function( itemData, itemType, id ) { // Can take a type, such as 'menu-item', or an id.
 250                                         itemType = itemType || 'menu-item';
 251
 252                                         if( !id && itemType == 'menu-item' ) {
 253                                                 id = $('.menu-item-data-db-id', this).val();
 254                                         }
 255
 256                                         if( !id ) return this;
 257
 258                                         this.find('input').each(function() {
 259                                                 var t = $(this), field;
 260                                                 $.each( itemData, function( attr, val ) {
 261                                                         if( itemType == 'menu-item' )
 262                                                                 field = attr + '[' + id + ']';
 263                                                         else if( itemType == 'add-menu-item' )
 264                                                                 field = 'menu-item[' + id + '][' + attr + ']';
 265
 266                                                         if ( field == t.attr('name') ) {
 267                                                                 t.val( val );
 268                                                         }
 269                                                 });
 270                                         });
 271                                         return this;
 272                                 }
 273                         });
 274                 },
 275
 276                 countMenuItems : function( depth ) {
 277                         return $( '.menu-item-depth-' + depth ).length;
 278                 },
 279
 280                 moveMenuItem : function( $this, dir ) {
 281
 282                         var items, newItemPosition, newDepth,
 283                                 menuItems = $( '#menu-to-edit li' ),
 284                                 menuItemsCount = menuItems.length,
 285                                 thisItem = $this.parents( 'li.menu-item' ),
 286                                 thisItemChildren = thisItem.childMenuItems(),
 287                                 thisItemData = thisItem.getItemData(),
 288                                 thisItemDepth = parseInt( thisItem.menuItemDepth(), 10 ),
 289                                 thisItemPosition = parseInt( thisItem.index(), 10 ),
 290                                 nextItem = thisItem.next(),
 291                                 nextItemChildren = nextItem.childMenuItems(),
 292                                 nextItemDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1,
 293                                 prevItem = thisItem.prev(),
 294                                 prevItemDepth = parseInt( prevItem.menuItemDepth(), 10 ),
 295                                 prevItemId = prevItem.getItemData()['menu-item-db-id'];
 296
 297                         switch ( dir ) {
 298                         case 'up':
 299                                 newItemPosition = thisItemPosition - 1;
 300
 301                                 // Already at top
 302                                 if ( 0 === thisItemPosition )
 303                                         break;
 304
 305                                 // If a sub item is moved to top, shift it to 0 depth
 306                                 if ( 0 === newItemPosition && 0 !== thisItemDepth )
 307                                         thisItem.moveHorizontally( 0, thisItemDepth );
 308
 309                                 // If prev item is sub item, shift to match depth
 310                                 if ( 0 !== prevItemDepth )
 311                                         thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
 312
 313                                 // Does this item have sub items?
 314                                 if ( thisItemChildren ) {
 315                                         items = thisItem.add( thisItemChildren );
 316                                         // Move the entire block
 317                                         items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 318                                 } else {
 319                                         thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 320                                 }
 321                                 break;
 322                         case 'down':
 323                                 // Does this item have sub items?
 324                                 if ( thisItemChildren ) {
 325                                         items = thisItem.add( thisItemChildren ),
 326                                                 nextItem = menuItems.eq( items.length + thisItemPosition ),
 327                                                 nextItemChildren = 0 !== nextItem.childMenuItems().length;
 328
 329                                         if ( nextItemChildren ) {
 330                                                 newDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1;
 331                                                 thisItem.moveHorizontally( newDepth, thisItemDepth );
 332                                         }
 333
 334                                         // Have we reached the bottom?
 335                                         if ( menuItemsCount === thisItemPosition + items.length )
 336                                                 break;
 337
 338                                         items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
 339                                 } else {
 340                                         // If next item has sub items, shift depth
 341                                         if ( 0 !== nextItemChildren.length )
 342                                                 thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
 343
 344                                         // Have we reached the bottom
 345                                         if ( menuItemsCount === thisItemPosition + 1 )
 346                                                 break;
 347                                         thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
 348                                 }
 349                                 break;
 350                         case 'top':
 351                                 // Already at top
 352                                 if ( 0 === thisItemPosition )
 353                                         break;
 354                                 // Does this item have sub items?
 355                                 if ( thisItemChildren ) {
 356                                         items = thisItem.add( thisItemChildren );
 357                                         // Move the entire block
 358                                         items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 359                                 } else {
 360                                         thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 361                                 }
 362                                 break;
 363                         case 'left':
 364                                 // As far left as possible
 365                                 if ( 0 === thisItemDepth )
 366                                         break;
 367                                 thisItem.shiftHorizontally( -1 );
 368                                 break;
 369                         case 'right':
 370                                 // Can't be sub item at top
 371                                 if ( 0 === thisItemPosition )
 372                                         break;
 373                                 // Already sub item of prevItem
 374                                 if ( thisItemData['menu-item-parent-id'] === prevItemId )
 375                                         break;
 376                                 thisItem.shiftHorizontally( 1 );
 377                                 break;
 378                         }
 379                         $this.focus();
 380                         api.registerChange();
 381                         api.refreshKeyboardAccessibility();
 382                         api.refreshAdvancedAccessibility();
 383                 },
 384
 385                 initAccessibility : function() {
 386                         var menu = $( '#menu-to-edit' );
 387
 388                         api.refreshKeyboardAccessibility();
 389                         api.refreshAdvancedAccessibility();
 390
 391                         // Refresh the accessibility when the user comes close to the item in any way
 392                         menu.on( 'mouseenter.refreshAccessibility focus.refreshAccessibility touchstart.refreshAccessibility' , '.menu-item' , function(){
 393                                 api.refreshAdvancedAccessibilityOfItem( $( this ).find( 'a.item-edit' ) );
 394                         } );
 395
 396                         // We have to update on click as well because we might hover first, change the item, and then click.
 397                         menu.on( 'click', 'a.item-edit', function() {
 398                                 api.refreshAdvancedAccessibilityOfItem( $( this ) );
 399                         } );
 400
 401                         // Links for moving items
 402                         menu.on( 'click', '.menus-move', function ( e ) {
 403                                 var $this = $( this ),
 404                                         dir = $this.data( 'dir' );
 405
 406                                 if ( 'undefined' !== typeof dir ) {
 407                                         api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), dir );
 408                                 }
 409                                 e.preventDefault();
 410                         });
 411                 },
 412
 413                 /**
 414                  * refreshAdvancedAccessibilityOfItem( [itemToRefresh] )
 415                  *
 416                  * Refreshes advanced accessibility buttons for one menu item.
 417                  * Shows or hides buttons based on the location of the menu item.
 418                  *
 419                  * @param  {object} itemToRefresh The menu item that might need its advanced accessibility buttons refreshed
 420                  */
 421                 refreshAdvancedAccessibilityOfItem : function( itemToRefresh ) {
 422
 423                         // Only refresh accessibility when necessary
 424                         if ( true !== $( itemToRefresh ).data( 'needs_accessibility_refresh' ) ) {
 425                                 return;
 426                         }
 427
 428                         var thisLink, thisLinkText, primaryItems, itemPosition, title,
 429                                 parentItem, parentItemId, parentItemName, subItems,
 430                                 $this = $( itemToRefresh ),
 431                                 menuItem = $this.closest( 'li.menu-item' ).first(),
 432                                 depth = menuItem.menuItemDepth(),
 433                                 isPrimaryMenuItem = ( 0 === depth ),
 434                                 itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
 435                                 position = parseInt( menuItem.index(), 10 ),
 436                                 prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
 437                                 prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
 438                                 prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
 439                                 totalMenuItems = $('#menu-to-edit li').length,
 440                                 hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 441
 442                                 menuItem.find( '.field-move' ).toggle( totalMenuItems > 1 );
 443
 444                         // Where can they move this menu item?
 445                         if ( 0 !== position ) {
 446                                 thisLink = menuItem.find( '.menus-move-up' );
 447                                 thisLink.prop( 'title', menus.moveUp ).css( 'display', 'inline' );
 448                         }
 449
 450                         if ( 0 !== position && isPrimaryMenuItem ) {
 451                                 thisLink = menuItem.find( '.menus-move-top' );
 452                                 thisLink.prop( 'title', menus.moveToTop ).css( 'display', 'inline' );
 453                         }
 454
 455                         if ( position + 1 !== totalMenuItems && 0 !== position ) {
 456                                 thisLink = menuItem.find( '.menus-move-down' );
 457                                 thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
 458                         }
 459
 460                         if ( 0 === position && 0 !== hasSameDepthSibling ) {
 461                                 thisLink = menuItem.find( '.menus-move-down' );
 462                                 thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
 463                         }
 464
 465                         if ( ! isPrimaryMenuItem ) {
 466                                 thisLink = menuItem.find( '.menus-move-left' ),
 467                                 thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
 468                                 thisLink.prop( 'title', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).text( thisLinkText ).css( 'display', 'inline' );
 469                         }
 470
 471                         if ( 0 !== position ) {
 472                                 if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
 473                                         thisLink = menuItem.find( '.menus-move-right' ),
 474                                         thisLinkText = menus.under.replace( '%s', prevItemNameRight );
 475                                         thisLink.prop( 'title', menus.moveUnder.replace( '%s', prevItemNameRight ) ).text( thisLinkText ).css( 'display', 'inline' );
 476                                 }
 477                         }
 478
 479                         if ( isPrimaryMenuItem ) {
 480                                 primaryItems = $( '.menu-item-depth-0' ),
 481                                 itemPosition = primaryItems.index( menuItem ) + 1,
 482                                 totalMenuItems = primaryItems.length,
 483
 484                                 // String together help text for primary menu items
 485                                 title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
 486                         } else {
 487                                 parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
 488                                 parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
 489                                 parentItemName = parentItem.find( '.menu-item-title' ).text(),
 490                                 subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
 491                                 itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 492
 493                                 // String together help text for sub menu items
 494                                 title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
 495                         }
 496
 497                         $this.prop('title', title).text( title );
 498
 499                         // Mark this item's accessibility as refreshed
 500                         $this.data( 'needs_accessibility_refresh', false );
 501                 },
 502
 503                 /**
 504                  * refreshAdvancedAccessibility
 505                  *
 506                  * Hides all advanced accessibility buttons and marks them for refreshing.
 507                  */
 508                 refreshAdvancedAccessibility : function() {
 509
 510                         // Hide all links by default
 511                         $( '.menu-item-settings .field-move a' ).hide();
 512
 513                         // Mark all menu items as unprocessed
 514                         $( 'a.item-edit' ).data( 'needs_accessibility_refresh', true );
 515
 516                         // All open items have to be refreshed or they will show no links
 517                         $( '.menu-item-edit-active a.item-edit' ).each( function() {
 518                                 api.refreshAdvancedAccessibilityOfItem( this );
 519                         } );
 520                 },
 521
 522                 refreshKeyboardAccessibility : function() {
 523                         $( 'a.item-edit' ).off( 'focus' ).on( 'focus', function(){
 524                                 $(this).off( 'keydown' ).on( 'keydown', function(e){
 525
 526                                         var arrows,
 527                                                 $this = $( this ),
 528                                                 thisItem = $this.parents( 'li.menu-item' ),
 529                                                 thisItemData = thisItem.getItemData();
 530
 531                                         // Bail if it's not an arrow key
 532                                         if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
 533                                                 return;
 534
 535                                         // Avoid multiple keydown events
 536                                         $this.off('keydown');
 537
 538                                         // Bail if there is only one menu item
 539                                         if ( 1 === $('#menu-to-edit li').length )
 540                                                 return;
 541
 542                                         // If RTL, swap left/right arrows
 543                                         arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
 544                                         if ( $('body').hasClass('rtl') )
 545                                                 arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
 546
 547                                         switch ( arrows[e.which] ) {
 548                                         case 'up':
 549                                                 api.moveMenuItem( $this, 'up' );
 550                                                 break;
 551                                         case 'down':
 552                                                 api.moveMenuItem( $this, 'down' );
 553                                                 break;
 554                                         case 'left':
 555                                                 api.moveMenuItem( $this, 'left' );
 556                                                 break;
 557                                         case 'right':
 558                                                 api.moveMenuItem( $this, 'right' );
 559                                                 break;
 560                                         }
 561                                         // Put focus back on same menu item
 562                                         $( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
 563                                         return false;
 564                                 });
 565                         });
 566                 },
 567
 568                 initPreviewing : function() {
 569                         // Update the item handle title when the navigation label is changed.
 570                         $( '#menu-to-edit' ).on( 'change input', '.edit-menu-item-title', function(e) {
 571                                 var input = $( e.currentTarget ), title, titleEl;
 572                                 title = input.val();
 573                                 titleEl = input.closest( '.menu-item' ).find( '.menu-item-title' );
 574                                 // Don't update to empty title.
 575                                 if ( title ) {
 576                                         titleEl.text( title ).removeClass( 'no-title' );
 577                                 } else {
 578                                         titleEl.text( navMenuL10n.untitled ).addClass( 'no-title' );
 579                                 }
 580                         } );
 581                 },
 582
 583                 initToggles : function() {
 584                         // init postboxes
 585                         postboxes.add_postbox_toggles('nav-menus');
 586
 587                         // adjust columns functions for menus UI
 588                         columns.useCheckboxesForHidden();
 589                         columns.checked = function(field) {
 590                                 $('.field-' + field).removeClass('hidden-field');
 591                         };
 592                         columns.unchecked = function(field) {
 593                                 $('.field-' + field).addClass('hidden-field');
 594                         };
 595                         // hide fields
 596                         api.menuList.hideAdvancedMenuItemFields();
 597
 598                         $('.hide-postbox-tog').click(function () {
 599                                 var hidden = $( '.accordion-container li.accordion-section' ).filter(':hidden').map(function() { return this.id; }).get().join(',');
 600                                 $.post(ajaxurl, {
 601                                         action: 'closed-postboxes',
 602                                         hidden: hidden,
 603                                         closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
 604                                         page: 'nav-menus'
 605                                 });
 606                         });
 607                 },
 608
 609                 initSortables : function() {
 610                         var currentDepth = 0, originalDepth, minDepth, maxDepth,
 611                                 prev, next, prevBottom, nextThreshold, helperHeight, transport,
 612                                 menuEdge = api.menuList.offset().left,
 613                                 body = $('body'), maxChildDepth,
 614                                 menuMaxDepth = initialMenuMaxDepth();
 615
 616                         if( 0 !== $( '#menu-to-edit li' ).length )
 617                                 $( '.drag-instructions' ).show();
 618
 619                         // Use the right edge if RTL.
 620                         menuEdge += api.isRTL ? api.menuList.width() : 0;
 621
 622                         api.menuList.sortable({
 623                                 handle: '.menu-item-handle',
 624                                 placeholder: 'sortable-placeholder',
 625                                 items: api.options.sortableItems,
 626                                 start: function(e, ui) {
 627                                         var height, width, parent, children, tempHolder;
 628
 629                                         // handle placement for rtl orientation
 630                                         if ( api.isRTL )
 631                                                 ui.item[0].style.right = 'auto';
 632
 633                                         transport = ui.item.children('.menu-item-transport');
 634
 635                                         // Set depths. currentDepth must be set before children are located.
 636                                         originalDepth = ui.item.menuItemDepth();
 637                                         updateCurrentDepth(ui, originalDepth);
 638
 639                                         // Attach child elements to parent
 640                                         // Skip the placeholder
 641                                         parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
 642                                         children = parent.childMenuItems();
 643                                         transport.append( children );
 644
 645                                         // Update the height of the placeholder to match the moving item.
 646                                         height = transport.outerHeight();
 647                                         // If there are children, account for distance between top of children and parent
 648                                         height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
 649                                         height += ui.helper.outerHeight();
 650                                         helperHeight = height;
 651                                         height -= 2; // Subtract 2 for borders
 652                                         ui.placeholder.height(height);
 653
 654                                         // Update the width of the placeholder to match the moving item.
 655                                         maxChildDepth = originalDepth;
 656                                         children.each(function(){
 657                                                 var depth = $(this).menuItemDepth();
 658                                                 maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
 659                                         });
 660                                         width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width
 661                                         width += api.depthToPx(maxChildDepth - originalDepth); // Account for children
 662                                         width -= 2; // Subtract 2 for borders
 663                                         ui.placeholder.width(width);
 664
 665                                         // Update the list of menu items.
 666                                         tempHolder = ui.placeholder.next( '.menu-item' );
 667                                         tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder
 668                                         ui.placeholder.detach(); // detach or jQuery UI will think the placeholder is a menu item
 669                                         $(this).sortable( 'refresh' ); // The children aren't sortable. We should let jQ UI know.
 670                                         ui.item.after( ui.placeholder ); // reattach the placeholder.
 671                                         tempHolder.css('margin-top', 0); // reset the margin
 672
 673                                         // Now that the element is complete, we can update...
 674                                         updateSharedVars(ui);
 675                                 },
 676                                 stop: function(e, ui) {
 677                                         var children, subMenuTitle,
 678                                                 depthChange = currentDepth - originalDepth;
 679
 680                                         // Return child elements to the list
 681                                         children = transport.children().insertAfter(ui.item);
 682
 683                                         // Add "sub menu" description
 684                                         subMenuTitle = ui.item.find( '.item-title .is-submenu' );
 685                                         if ( 0 < currentDepth )
 686                                                 subMenuTitle.show();
 687                                         else
 688                                                 subMenuTitle.hide();
 689
 690                                         // Update depth classes
 691                                         if ( 0 !== depthChange ) {
 692                                                 ui.item.updateDepthClass( currentDepth );
 693                                                 children.shiftDepthClass( depthChange );
 694                                                 updateMenuMaxDepth( depthChange );
 695                                         }
 696                                         // Register a change
 697                                         api.registerChange();
 698                                         // Update the item data.
 699                                         ui.item.updateParentMenuItemDBId();
 700
 701                                         // address sortable's incorrectly-calculated top in opera
 702                                         ui.item[0].style.top = 0;
 703
 704                                         // handle drop placement for rtl orientation
 705                                         if ( api.isRTL ) {
 706                                                 ui.item[0].style.left = 'auto';
 707                                                 ui.item[0].style.right = 0;
 708                                         }
 709
 710                                         api.refreshKeyboardAccessibility();
 711                                         api.refreshAdvancedAccessibility();
 712                                 },
 713                                 change: function(e, ui) {
 714                                         // Make sure the placeholder is inside the menu.
 715                                         // Otherwise fix it, or we're in trouble.
 716                                         if( ! ui.placeholder.parent().hasClass('menu') )
 717                                                 (prev.length) ? prev.after( ui.placeholder ) : api.menuList.prepend( ui.placeholder );
 718
 719                                         updateSharedVars(ui);
 720                                 },
 721                                 sort: function(e, ui) {
 722                                         var offset = ui.helper.offset(),
 723                                                 edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
 724                                                 depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
 725
 726                                         // Check and correct if depth is not within range.
 727                                         // Also, if the dragged element is dragged upwards over
 728                                         // an item, shift the placeholder to a child position.
 729                                         if ( depth > maxDepth || offset.top < ( prevBottom - api.options.targetTolerance ) ) {
 730                                                 depth = maxDepth;
 731                                         } else if ( depth < minDepth ) {
 732                                                 depth = minDepth;
 733                                         }
 734
 735                                         if( depth != currentDepth )
 736                                                 updateCurrentDepth(ui, depth);
 737
 738                                         // If we overlap the next element, manually shift downwards
 739                                         if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
 740                                                 next.after( ui.placeholder );
 741                                                 updateSharedVars( ui );
 742                                                 $( this ).sortable( 'refreshPositions' );
 743                                         }
 744                                 }
 745                         });
 746
 747                         function updateSharedVars(ui) {
 748                                 var depth;
 749
 750                                 prev = ui.placeholder.prev( '.menu-item' );
 751                                 next = ui.placeholder.next( '.menu-item' );
 752
 753                                 // Make sure we don't select the moving item.
 754                                 if( prev[0] == ui.item[0] ) prev = prev.prev( '.menu-item' );
 755                                 if( next[0] == ui.item[0] ) next = next.next( '.menu-item' );
 756
 757                                 prevBottom = (prev.length) ? prev.offset().top + prev.height() : 0;
 758                                 nextThreshold = (next.length) ? next.offset().top + next.height() / 3 : 0;
 759                                 minDepth = (next.length) ? next.menuItemDepth() : 0;
 760
 761                                 if( prev.length )
 762                                         maxDepth = ( (depth = prev.menuItemDepth() + 1) > api.options.globalMaxDepth ) ? api.options.globalMaxDepth : depth;
 763                                 else
 764                                         maxDepth = 0;
 765                         }
 766
 767                         function updateCurrentDepth(ui, depth) {
 768                                 ui.placeholder.updateDepthClass( depth, currentDepth );
 769                                 currentDepth = depth;
 770                         }
 771
 772                         function initialMenuMaxDepth() {
 773                                 if( ! body[0].className ) return 0;
 774                                 var match = body[0].className.match(/menu-max-depth-(\d+)/);
 775                                 return match && match[1] ? parseInt( match[1], 10 ) : 0;
 776                         }
 777
 778                         function updateMenuMaxDepth( depthChange ) {
 779                                 var depth, newDepth = menuMaxDepth;
 780                                 if ( depthChange === 0 ) {
 781                                         return;
 782                                 } else if ( depthChange > 0 ) {
 783                                         depth = maxChildDepth + depthChange;
 784                                         if( depth > menuMaxDepth )
 785                                                 newDepth = depth;
 786                                 } else if ( depthChange < 0 && maxChildDepth == menuMaxDepth ) {
 787                                         while( ! $('.menu-item-depth-' + newDepth, api.menuList).length && newDepth > 0 )
 788                                                 newDepth--;
 789                                 }
 790                                 // Update the depth class.
 791                                 body.removeClass( 'menu-max-depth-' + menuMaxDepth ).addClass( 'menu-max-depth-' + newDepth );
 792                                 menuMaxDepth = newDepth;
 793                         }
 794                 },
 795
 796                 initManageLocations : function () {
 797                         $('#menu-locations-wrap form').submit(function(){
 798                                 window.onbeforeunload = null;
 799                         });
 800                         $('.menu-location-menus select').on('change', function () {
 801                                 var editLink = $(this).closest('tr').find('.locations-edit-menu-link');
 802                                 if ($(this).find('option:selected').data('orig'))
 803                                         editLink.show();
 804                                 else
 805                                         editLink.hide();
 806                         });
 807                 },
 808
 809                 attachMenuEditListeners : function() {
 810                         var that = this;
 811                         $('#update-nav-menu').bind('click', function(e) {
 812                                 if ( e.target && e.target.className ) {
 813                                         if ( -1 != e.target.className.indexOf('item-edit') ) {
 814                                                 return that.eventOnClickEditLink(e.target);
 815                                         } else if ( -1 != e.target.className.indexOf('menu-save') ) {
 816                                                 return that.eventOnClickMenuSave(e.target);
 817                                         } else if ( -1 != e.target.className.indexOf('menu-delete') ) {
 818                                                 return that.eventOnClickMenuDelete(e.target);
 819                                         } else if ( -1 != e.target.className.indexOf('item-delete') ) {
 820                                                 return that.eventOnClickMenuItemDelete(e.target);
 821                                         } else if ( -1 != e.target.className.indexOf('item-cancel') ) {
 822                                                 return that.eventOnClickCancelLink(e.target);
 823                                         }
 824                                 }
 825                         });
 826                         $('#add-custom-links input[type="text"]').keypress(function(e){
 827                                 $('#customlinkdiv').removeClass('form-invalid');
 828
 829                                 if ( e.keyCode === 13 ) {
 830                                         e.preventDefault();
 831                                         $( '#submit-customlinkdiv' ).click();
 832                                 }
 833                         });
 834                 },
 835
 836                 /**
 837                  * An interface for managing default values for input elements
 838                  * that is both JS and accessibility-friendly.
 839                  *
 840                  * Input elements that add the class 'input-with-default-title'
 841                  * will have their values set to the provided HTML title when empty.
 842                  */
 843                 setupInputWithDefaultTitle : function() {
 844                         var name = 'input-with-default-title';
 845
 846                         $('.' + name).each( function(){
 847                                 var $t = $(this), title = $t.attr('title'), val = $t.val();
 848                                 $t.data( name, title );
 849
 850                                 if( '' === val ) $t.val( title );
 851                                 else if ( title == val ) return;
 852                                 else $t.removeClass( name );
 853                         }).focus( function(){
 854                                 var $t = $(this);
 855                                 if( $t.val() == $t.data(name) )
 856                                         $t.val('').removeClass( name );
 857                         }).blur( function(){
 858                                 var $t = $(this);
 859                                 if( '' === $t.val() )
 860                                         $t.addClass( name ).val( $t.data(name) );
 861                         });
 862
 863                         $( '.blank-slate .input-with-default-title' ).focus();
 864                 },
 865
 866                 attachThemeLocationsListeners : function() {
 867                         var loc = $('#nav-menu-theme-locations'), params = {};
 868                         params.action = 'menu-locations-save';
 869                         params['menu-settings-column-nonce'] = $('#menu-settings-column-nonce').val();
 870                         loc.find('input[type="submit"]').click(function() {
 871                                 loc.find('select').each(function() {
 872                                         params[this.name] = $(this).val();
 873                                 });
 874                                 loc.find( '.spinner' ).addClass( 'is-active' );
 875                                 $.post( ajaxurl, params, function() {
 876                                         loc.find( '.spinner' ).removeClass( 'is-active' );
 877                                 });
 878                                 return false;
 879                         });
 880                 },
 881
 882                 attachQuickSearchListeners : function() {
 883                         var searchTimer;
 884
 885                         $('.quick-search').keypress(function(e){
 886                                 var t = $(this);
 887
 888                                 if( 13 == e.which ) {
 889                                         api.updateQuickSearchResults( t );
 890                                         return false;
 891                                 }
 892
 893                                 if( searchTimer ) clearTimeout(searchTimer);
 894
 895                                 searchTimer = setTimeout(function(){
 896                                         api.updateQuickSearchResults( t );
 897                                 }, 400);
 898                         }).attr('autocomplete','off');
 899                 },
 900
 901                 updateQuickSearchResults : function(input) {
 902                         var panel, params,
 903                         minSearchLength = 2,
 904                         q = input.val();
 905
 906                         if( q.length < minSearchLength ) return;
 907
 908                         panel = input.parents('.tabs-panel');
 909                         params = {
 910                                 'action': 'menu-quick-search',
 911                                 'response-format': 'markup',
 912                                 'menu': $('#menu').val(),
 913                                 'menu-settings-column-nonce': $('#menu-settings-column-nonce').val(),
 914                                 'q': q,
 915                                 'type': input.attr('name')
 916                         };
 917
 918                         $( '.spinner', panel ).addClass( 'is-active' );
 919
 920                         $.post( ajaxurl, params, function(menuMarkup) {
 921                                 api.processQuickSearchQueryResponse(menuMarkup, params, panel);
 922                         });
 923                 },
 924
 925                 addCustomLink : function( processMethod ) {
 926                         var url = $('#custom-menu-item-url').val(),
 927                                 label = $('#custom-menu-item-name').val();
 928
 929                         processMethod = processMethod || api.addMenuItemToBottom;
 930
 931                         if ( '' === url || 'http://' == url ) {
 932                                 $('#customlinkdiv').addClass('form-invalid');
 933                                 return false;
 934                         }
 935
 936                         // Show the ajax spinner
 937                         $( '.customlinkdiv .spinner' ).addClass( 'is-active' );
 938                         this.addLinkToMenu( url, label, processMethod, function() {
 939                                 // Remove the ajax spinner
 940                                 $( '.customlinkdiv .spinner' ).removeClass( 'is-active' );
 941                                 // Set custom link form back to defaults
 942                                 $('#custom-menu-item-name').val('').blur();
 943                                 $('#custom-menu-item-url').val('http://');
 944                         });
 945                 },
 946
 947                 addLinkToMenu : function(url, label, processMethod, callback) {
 948                         processMethod = processMethod || api.addMenuItemToBottom;
 949                         callback = callback || function(){};
 950
 951                         api.addItemToMenu({
 952                                 '-1': {
 953                                         'menu-item-type': 'custom',
 954                                         'menu-item-url': url,
 955                                         'menu-item-title': label
 956                                 }
 957                         }, processMethod, callback);
 958                 },
 959
 960                 addItemToMenu : function(menuItem, processMethod, callback) {
 961                         var menu = $('#menu').val(),
 962                                 nonce = $('#menu-settings-column-nonce').val(),
 963                                 params;
 964
 965                         processMethod = processMethod || function(){};
 966                         callback = callback || function(){};
 967
 968                         params = {
 969                                 'action': 'add-menu-item',
 970                                 'menu': menu,
 971                                 'menu-settings-column-nonce': nonce,
 972                                 'menu-item': menuItem
 973                         };
 974
 975                         $.post( ajaxurl, params, function(menuMarkup) {
 976                                 var ins = $('#menu-instructions');
 977
 978                                 menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces
 979                                 processMethod(menuMarkup, params);
 980
 981                                 // Make it stand out a bit more visually, by adding a fadeIn
 982                                 $( 'li.pending' ).hide().fadeIn('slow');
 983                                 $( '.drag-instructions' ).show();
 984                                 if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
 985                                         ins.addClass( 'menu-instructions-inactive' );
 986
 987                                 callback();
 988                         });
 989                 },
 990
 991                 /**
 992                  * Process the add menu item request response into menu list item.
 993                  *
 994                  * @param string menuMarkup The text server response of menu item markup.
 995                  * @param object req The request arguments.
 996                  */
 997                 addMenuItemToBottom : function( menuMarkup ) {
 998                         $(menuMarkup).hideAdvancedMenuItemFields().appendTo( api.targetList );
 999                         api.refreshKeyboardAccessibility();
1000                         api.refreshAdvancedAccessibility();
1001                 },
1002
1003                 addMenuItemToTop : function( menuMarkup ) {
1004                         $(menuMarkup).hideAdvancedMenuItemFields().prependTo( api.targetList );
1005                         api.refreshKeyboardAccessibility();
1006                         api.refreshAdvancedAccessibility();
1007                 },
1008
1009                 attachUnsavedChangesListener : function() {
1010                         $('#menu-management input, #menu-management select, #menu-management, #menu-management textarea, .menu-location-menus select').change(function(){
1011                                 api.registerChange();
1012                         });
1013
1014                         if ( 0 !== $('#menu-to-edit').length || 0 !== $('.menu-location-menus select').length ) {
1015                                 window.onbeforeunload = function(){
1016                                         if ( api.menusChanged )
1017                                                 return navMenuL10n.saveAlert;
1018                                 };
1019                         } else {
1020                                 // Make the post boxes read-only, as they can't be used yet
1021                                 $( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
1022                         }
1023                 },
1024
1025                 registerChange : function() {
1026                         api.menusChanged = true;
1027                 },
1028
1029                 attachTabsPanelListeners : function() {
1030                         $('#menu-settings-column').bind('click', function(e) {
1031                                 var selectAreaMatch, panelId, wrapper, items,
1032                                         target = $(e.target);
1033
1034                                 if ( target.hasClass('nav-tab-link') ) {
1035
1036                                         panelId = target.data( 'type' );
1037
1038                                         wrapper = target.parents('.accordion-section-content').first();
1039
1040                                         // upon changing tabs, we want to uncheck all checkboxes
1041                                         $('input', wrapper).removeAttr('checked');
1042
1043                                         $('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
1044                                         $('#' + panelId, wrapper).removeClass('tabs-panel-inactive').addClass('tabs-panel-active');
1045
1046                                         $('.tabs', wrapper).removeClass('tabs');
1047                                         target.parent().addClass('tabs');
1048
1049                                         // select the search bar
1050                                         $('.quick-search', wrapper).focus();
1051
1052                                         e.preventDefault();
1053                                 } else if ( target.hasClass('select-all') ) {
1054                                         selectAreaMatch = /#(.*)$/.exec(e.target.href);
1055                                         if ( selectAreaMatch && selectAreaMatch[1] ) {
1056                                                 items = $('#' + selectAreaMatch[1] + ' .tabs-panel-active .menu-item-title input');
1057                                                 if( items.length === items.filter(':checked').length )
1058                                                         items.removeAttr('checked');
1059                                                 else
1060                                                         items.prop('checked', true);
1061                                                 return false;
1062                                         }
1063                                 } else if ( target.hasClass('submit-add-to-menu') ) {
1064                                         api.registerChange();
1065
1066                                         if ( e.target.id && 'submit-customlinkdiv' == e.target.id )
1067                                                 api.addCustomLink( api.addMenuItemToBottom );
1068                                         else if ( e.target.id && -1 != e.target.id.indexOf('submit-') )
1069                                                 $('#' + e.target.id.replace(/submit-/, '')).addSelectedToMenu( api.addMenuItemToBottom );
1070                                         return false;
1071                                 } else if ( target.hasClass('page-numbers') ) {
1072                                         $.post( ajaxurl, e.target.href.replace(/.*\?/, '').replace(/action=([^&]*)/, '') + '&action=menu-get-metabox',
1073                                                 function( resp ) {
1074                                                         if ( -1 == resp.indexOf('replace-id') )
1075                                                                 return;
1076
1077                                                         var metaBoxData = $.parseJSON(resp),
1078                                                         toReplace = document.getElementById(metaBoxData['replace-id']),
1079                                                         placeholder = document.createElement('div'),
1080                                                         wrap = document.createElement('div');
1081
1082                                                         if ( ! metaBoxData.markup || ! toReplace )
1083                                                                 return;
1084
1085                                                         wrap.innerHTML = metaBoxData.markup ? metaBoxData.markup : '';
1086
1087                                                         toReplace.parentNode.insertBefore( placeholder, toReplace );
1088                                                         placeholder.parentNode.removeChild( toReplace );
1089
1090                                                         placeholder.parentNode.insertBefore( wrap, placeholder );
1091
1092                                                         placeholder.parentNode.removeChild( placeholder );
1093
1094                                                 }
1095                                         );
1096
1097                                         return false;
1098                                 }
1099                         });
1100                 },
1101
1102                 eventOnClickEditLink : function(clickedEl) {
1103                         var settings, item,
1104                         matchedSection = /#(.*)$/.exec(clickedEl.href);
1105                         if ( matchedSection && matchedSection[1] ) {
1106                                 settings = $('#'+matchedSection[1]);
1107                                 item = settings.parent();
1108                                 if( 0 !== item.length ) {
1109                                         if( item.hasClass('menu-item-edit-inactive') ) {
1110                                                 if( ! settings.data('menu-item-data') ) {
1111                                                         settings.data( 'menu-item-data', settings.getItemData() );
1112                                                 }
1113                                                 settings.slideDown('fast');
1114                                                 item.removeClass('menu-item-edit-inactive')
1115                                                         .addClass('menu-item-edit-active');
1116                                         } else {
1117                                                 settings.slideUp('fast');
1118                                                 item.removeClass('menu-item-edit-active')
1119                                                         .addClass('menu-item-edit-inactive');
1120                                         }
1121                                         return false;
1122                                 }
1123                         }
1124                 },
1125
1126                 eventOnClickCancelLink : function(clickedEl) {
1127                         var settings = $( clickedEl ).closest( '.menu-item-settings' ),
1128                                 thisMenuItem = $( clickedEl ).closest( '.menu-item' );
1129                         thisMenuItem.removeClass('menu-item-edit-active').addClass('menu-item-edit-inactive');
1130                         settings.setItemData( settings.data('menu-item-data') ).hide();
1131                         return false;
1132                 },
1133
1134                 eventOnClickMenuSave : function() {
1135                         var locs = '',
1136                         menuName = $('#menu-name'),
1137                         menuNameVal = menuName.val();
1138                         // Cancel and warn if invalid menu name
1139                         if( !menuNameVal || menuNameVal == menuName.attr('title') || !menuNameVal.replace(/\s+/, '') ) {
1140                                 menuName.parent().addClass('form-invalid');
1141                                 return false;
1142                         }
1143                         // Copy menu theme locations
1144                         $('#nav-menu-theme-locations select').each(function() {
1145                                 locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
1146                         });
1147                         $('#update-nav-menu').append( locs );
1148                         // Update menu item position data
1149                         api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
1150                         window.onbeforeunload = null;
1151
1152                         return true;
1153                 },
1154
1155                 eventOnClickMenuDelete : function() {
1156                         // Delete warning AYS
1157                         if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
1158                                 window.onbeforeunload = null;
1159                                 return true;
1160                         }
1161                         return false;
1162                 },
1163
1164                 eventOnClickMenuItemDelete : function(clickedEl) {
1165                         var itemID = parseInt(clickedEl.id.replace('delete-', ''), 10);
1166                         api.removeMenuItem( $('#menu-item-' + itemID) );
1167                         api.registerChange();
1168                         return false;
1169                 },
1170
1171                 /**
1172                  * Process the quick search response into a search result
1173                  *
1174                  * @param string resp The server response to the query.
1175                  * @param object req The request arguments.
1176                  * @param jQuery panel The tabs panel we're searching in.
1177                  */
1178                 processQuickSearchQueryResponse : function(resp, req, panel) {
1179                         var matched, newID,
1180                         takenIDs = {},
1181                         form = document.getElementById('nav-menu-meta'),
1182                         pattern = /menu-item[(\[^]\]*/,
1183                         $items = $('<div>').html(resp).find('li'),
1184                         $item;
1185
1186                         if( ! $items.length ) {
1187                                 $('.categorychecklist', panel).html( '<li><p>' + navMenuL10n.noResultsFound + '</p></li>' );
1188                                 $( '.spinner', panel ).removeClass( 'is-active' );
1189                                 return;
1190                         }
1191
1192                         $items.each(function(){
1193                                 $item = $(this);
1194
1195                                 // make a unique DB ID number
1196                                 matched = pattern.exec($item.html());
1197
1198                                 if ( matched && matched[1] ) {
1199                                         newID = matched[1];
1200                                         while( form.elements['menu-item[' + newID + '][menu-item-type]'] || takenIDs[ newID ] ) {
1201                                                 newID--;
1202                                         }
1203
1204                                         takenIDs[newID] = true;
1205                                         if ( newID != matched[1] ) {
1206                                                 $item.html( $item.html().replace(new RegExp(
1207                                                         'menu-item\\[' + matched[1] + '\\]', 'g'),
1208                                                         'menu-item[' + newID + ']'
1209                                                 ) );
1210                                         }
1211                                 }
1212                         });
1213
1214                         $('.categorychecklist', panel).html( $items );
1215                         $( '.spinner', panel ).removeClass( 'is-active' );
1216                 },
1217
1218                 removeMenuItem : function(el) {
1219                         var children = el.childMenuItems();
1220
1221                         el.addClass('deleting').animate({
1222                                         opacity : 0,
1223                                         height: 0
1224                                 }, 350, function() {
1225                                         var ins = $('#menu-instructions');
1226                                         el.remove();
1227                                         children.shiftDepthClass( -1 ).updateParentMenuItemDBId();
1228                                         if ( 0 === $( '#menu-to-edit li' ).length ) {
1229                                                 $( '.drag-instructions' ).hide();
1230                                                 ins.removeClass( 'menu-instructions-inactive' );
1231                                         }
1232                                         api.refreshAdvancedAccessibility();
1233                                 });
1234                 },
1235
1236                 depthToPx : function(depth) {
1237                         return depth * api.options.menuItemDepthPerLevel;
1238                 },
1239
1240                 pxToDepth : function(px) {
1241                         return Math.floor(px / api.options.menuItemDepthPerLevel);
1242                 }
1243
1244         };
1245
1246         $(document).ready(function(){ wpNavMenu.init(); });
1247
1248 })(jQuery);