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                 lastSearch: '',
  34
  35                 // Functions that run on init.
  36                 init : function() {
  37                         api.menuList = $('#menu-to-edit');
  38                         api.targetList = api.menuList;
  39
  40                         this.jQueryExtensions();
  41
  42                         this.attachMenuEditListeners();
  43
  44                         this.attachQuickSearchListeners();
  45                         this.attachThemeLocationsListeners();
  46                         this.attachMenuSaveSubmitListeners();
  47
  48                         this.attachTabsPanelListeners();
  49
  50                         this.attachUnsavedChangesListener();
  51
  52                         if ( api.menuList.length )
  53                                 this.initSortables();
  54
  55                         if ( menus.oneThemeLocationNoMenus )
  56                                 $( '#posttype-page' ).addSelectedToMenu( api.addMenuItemToBottom );
  57
  58                         this.initManageLocations();
  59
  60                         this.initAccessibility();
  61
  62                         this.initToggles();
  63
  64                         this.initPreviewing();
  65                 },
  66
  67                 jQueryExtensions : function() {
  68                         // jQuery extensions
  69                         $.fn.extend({
  70                                 menuItemDepth : function() {
  71                                         var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
  72                                         return api.pxToDepth( margin && -1 != margin.indexOf('px') ? margin.slice(0, -2) : 0 );
  73                                 },
  74                                 updateDepthClass : function(current, prev) {
  75                                         return this.each(function(){
  76                                                 var t = $(this);
  77                                                 prev = prev || t.menuItemDepth();
  78                                                 $(this).removeClass('menu-item-depth-'+ prev )
  79                                                         .addClass('menu-item-depth-'+ current );
  80                                         });
  81                                 },
  82                                 shiftDepthClass : function(change) {
  83                                         return this.each(function(){
  84                                                 var t = $(this),
  85                                                         depth = t.menuItemDepth(),
  86                                                         newDepth = depth + change;
  87
  88                                                 t.removeClass( 'menu-item-depth-'+ depth )
  89                                                         .addClass( 'menu-item-depth-'+ ( newDepth ) );
  90
  91                                                 if ( 0 === newDepth ) {
  92                                                         t.find( '.is-submenu' ).hide();
  93                                                 }
  94                                         });
  95                                 },
  96                                 childMenuItems : function() {
  97                                         var result = $();
  98                                         this.each(function(){
  99                                                 var t = $(this), depth = t.menuItemDepth(), next = t.next( '.menu-item' );
 100                                                 while( next.length && next.menuItemDepth() > depth ) {
 101                                                         result = result.add( next );
 102                                                         next = next.next( '.menu-item' );
 103                                                 }
 104                                         });
 105                                         return result;
 106                                 },
 107                                 shiftHorizontally : function( dir ) {
 108                                         return this.each(function(){
 109                                                 var t = $(this),
 110                                                         depth = t.menuItemDepth(),
 111                                                         newDepth = depth + dir;
 112
 113                                                 // Change .menu-item-depth-n class
 114                                                 t.moveHorizontally( newDepth, depth );
 115                                         });
 116                                 },
 117                                 moveHorizontally : function( newDepth, depth ) {
 118                                         return this.each(function(){
 119                                                 var t = $(this),
 120                                                         children = t.childMenuItems(),
 121                                                         diff = newDepth - depth,
 122                                                         subItemText = t.find('.is-submenu');
 123
 124                                                 // Change .menu-item-depth-n class
 125                                                 t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
 126
 127                                                 // If it has children, move those too
 128                                                 if ( children ) {
 129                                                         children.each(function() {
 130                                                                 var t = $(this),
 131                                                                         thisDepth = t.menuItemDepth(),
 132                                                                         newDepth = thisDepth + diff;
 133                                                                 t.updateDepthClass(newDepth, thisDepth).updateParentMenuItemDBId();
 134                                                         });
 135                                                 }
 136
 137                                                 // Show "Sub item" helper text
 138                                                 if (0 === newDepth)
 139                                                         subItemText.hide();
 140                                                 else
 141                                                         subItemText.show();
 142                                         });
 143                                 },
 144                                 updateParentMenuItemDBId : function() {
 145                                         return this.each(function(){
 146                                                 var item = $(this),
 147                                                         input = item.find( '.menu-item-data-parent-id' ),
 148                                                         depth = parseInt( item.menuItemDepth(), 10 ),
 149                                                         parentDepth = depth - 1,
 150                                                         parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
 151
 152                                                 if ( 0 === depth ) { // Item is on the top level, has no parent
 153                                                         input.val(0);
 154                                                 } else { // Find the parent item, and retrieve its object id.
 155                                                         input.val( parent.find( '.menu-item-data-db-id' ).val() );
 156                                                 }
 157                                         });
 158                                 },
 159                                 hideAdvancedMenuItemFields : function() {
 160                                         return this.each(function(){
 161                                                 var that = $(this);
 162                                                 $('.hide-column-tog').not(':checked').each(function(){
 163                                                         that.find('.field-' + $(this).val() ).addClass('hidden-field');
 164                                                 });
 165                                         });
 166                                 },
 167                                 /**
 168                                  * Adds selected menu items to the menu.
 169                                  *
 170                                  * @param jQuery metabox The metabox jQuery object.
 171                                  */
 172                                 addSelectedToMenu : function(processMethod) {
 173                                         if ( 0 === $('#menu-to-edit').length ) {
 174                                                 return false;
 175                                         }
 176
 177                                         return this.each(function() {
 178                                                 var t = $(this), menuItems = {},
 179                                                         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' ),
 180                                                         re = /menu-item\[([^\]]*)/;
 181
 182                                                 processMethod = processMethod || api.addMenuItemToBottom;
 183
 184                                                 // If no items are checked, bail.
 185                                                 if ( !checkboxes.length )
 186                                                         return false;
 187
 188                                                 // Show the ajax spinner
 189                                                 t.find( '.button-controls .spinner' ).addClass( 'is-active' );
 190
 191                                                 // Retrieve menu item data
 192                                                 $(checkboxes).each(function(){
 193                                                         var t = $(this),
 194                                                                 listItemDBIDMatch = re.exec( t.attr('name') ),
 195                                                                 listItemDBID = 'undefined' == typeof listItemDBIDMatch[1] ? 0 : parseInt(listItemDBIDMatch[1], 10);
 196
 197                                                         if ( this.className && -1 != this.className.indexOf('add-to-top') )
 198                                                                 processMethod = api.addMenuItemToTop;
 199                                                         menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
 200                                                 });
 201
 202                                                 // Add the items
 203                                                 api.addItemToMenu(menuItems, processMethod, function(){
 204                                                         // Deselect the items and hide the ajax spinner
 205                                                         checkboxes.removeAttr('checked');
 206                                                         t.find( '.button-controls .spinner' ).removeClass( 'is-active' );
 207                                                 });
 208                                         });
 209                                 },
 210                                 getItemData : function( itemType, id ) {
 211                                         itemType = itemType || 'menu-item';
 212
 213                                         var itemData = {}, i,
 214                                         fields = [
 215                                                 'menu-item-db-id',
 216                                                 'menu-item-object-id',
 217                                                 'menu-item-object',
 218                                                 'menu-item-parent-id',
 219                                                 'menu-item-position',
 220                                                 'menu-item-type',
 221                                                 'menu-item-title',
 222                                                 'menu-item-url',
 223                                                 'menu-item-description',
 224                                                 'menu-item-attr-title',
 225                                                 'menu-item-target',
 226                                                 'menu-item-classes',
 227                                                 'menu-item-xfn'
 228                                         ];
 229
 230                                         if( !id && itemType == 'menu-item' ) {
 231                                                 id = this.find('.menu-item-data-db-id').val();
 232                                         }
 233
 234                                         if( !id ) return itemData;
 235
 236                                         this.find('input').each(function() {
 237                                                 var field;
 238                                                 i = fields.length;
 239                                                 while ( i-- ) {
 240                                                         if( itemType == 'menu-item' )
 241                                                                 field = fields[i] + '[' + id + ']';
 242                                                         else if( itemType == 'add-menu-item' )
 243                                                                 field = 'menu-item[' + id + '][' + fields[i] + ']';
 244
 245                                                         if (
 246                                                                 this.name &&
 247                                                                 field == this.name
 248                                                         ) {
 249                                                                 itemData[fields[i]] = this.value;
 250                                                         }
 251                                                 }
 252                                         });
 253
 254                                         return itemData;
 255                                 },
 256                                 setItemData : function( itemData, itemType, id ) { // Can take a type, such as 'menu-item', or an id.
 257                                         itemType = itemType || 'menu-item';
 258
 259                                         if( !id && itemType == 'menu-item' ) {
 260                                                 id = $('.menu-item-data-db-id', this).val();
 261                                         }
 262
 263                                         if( !id ) return this;
 264
 265                                         this.find('input').each(function() {
 266                                                 var t = $(this), field;
 267                                                 $.each( itemData, function( attr, val ) {
 268                                                         if( itemType == 'menu-item' )
 269                                                                 field = attr + '[' + id + ']';
 270                                                         else if( itemType == 'add-menu-item' )
 271                                                                 field = 'menu-item[' + id + '][' + attr + ']';
 272
 273                                                         if ( field == t.attr('name') ) {
 274                                                                 t.val( val );
 275                                                         }
 276                                                 });
 277                                         });
 278                                         return this;
 279                                 }
 280                         });
 281                 },
 282
 283                 countMenuItems : function( depth ) {
 284                         return $( '.menu-item-depth-' + depth ).length;
 285                 },
 286
 287                 moveMenuItem : function( $this, dir ) {
 288
 289                         var items, newItemPosition, newDepth,
 290                                 menuItems = $( '#menu-to-edit li' ),
 291                                 menuItemsCount = menuItems.length,
 292                                 thisItem = $this.parents( 'li.menu-item' ),
 293                                 thisItemChildren = thisItem.childMenuItems(),
 294                                 thisItemData = thisItem.getItemData(),
 295                                 thisItemDepth = parseInt( thisItem.menuItemDepth(), 10 ),
 296                                 thisItemPosition = parseInt( thisItem.index(), 10 ),
 297                                 nextItem = thisItem.next(),
 298                                 nextItemChildren = nextItem.childMenuItems(),
 299                                 nextItemDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1,
 300                                 prevItem = thisItem.prev(),
 301                                 prevItemDepth = parseInt( prevItem.menuItemDepth(), 10 ),
 302                                 prevItemId = prevItem.getItemData()['menu-item-db-id'];
 303
 304                         switch ( dir ) {
 305                         case 'up':
 306                                 newItemPosition = thisItemPosition - 1;
 307
 308                                 // Already at top
 309                                 if ( 0 === thisItemPosition )
 310                                         break;
 311
 312                                 // If a sub item is moved to top, shift it to 0 depth
 313                                 if ( 0 === newItemPosition && 0 !== thisItemDepth )
 314                                         thisItem.moveHorizontally( 0, thisItemDepth );
 315
 316                                 // If prev item is sub item, shift to match depth
 317                                 if ( 0 !== prevItemDepth )
 318                                         thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
 319
 320                                 // Does this item have sub items?
 321                                 if ( thisItemChildren ) {
 322                                         items = thisItem.add( thisItemChildren );
 323                                         // Move the entire block
 324                                         items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 325                                 } else {
 326                                         thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 327                                 }
 328                                 break;
 329                         case 'down':
 330                                 // Does this item have sub items?
 331                                 if ( thisItemChildren ) {
 332                                         items = thisItem.add( thisItemChildren ),
 333                                                 nextItem = menuItems.eq( items.length + thisItemPosition ),
 334                                                 nextItemChildren = 0 !== nextItem.childMenuItems().length;
 335
 336                                         if ( nextItemChildren ) {
 337                                                 newDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1;
 338                                                 thisItem.moveHorizontally( newDepth, thisItemDepth );
 339                                         }
 340
 341                                         // Have we reached the bottom?
 342                                         if ( menuItemsCount === thisItemPosition + items.length )
 343                                                 break;
 344
 345                                         items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
 346                                 } else {
 347                                         // If next item has sub items, shift depth
 348                                         if ( 0 !== nextItemChildren.length )
 349                                                 thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
 350
 351                                         // Have we reached the bottom
 352                                         if ( menuItemsCount === thisItemPosition + 1 )
 353                                                 break;
 354                                         thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
 355                                 }
 356                                 break;
 357                         case 'top':
 358                                 // Already at top
 359                                 if ( 0 === thisItemPosition )
 360                                         break;
 361                                 // Does this item have sub items?
 362                                 if ( thisItemChildren ) {
 363                                         items = thisItem.add( thisItemChildren );
 364                                         // Move the entire block
 365                                         items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 366                                 } else {
 367                                         thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 368                                 }
 369                                 break;
 370                         case 'left':
 371                                 // As far left as possible
 372                                 if ( 0 === thisItemDepth )
 373                                         break;
 374                                 thisItem.shiftHorizontally( -1 );
 375                                 break;
 376                         case 'right':
 377                                 // Can't be sub item at top
 378                                 if ( 0 === thisItemPosition )
 379                                         break;
 380                                 // Already sub item of prevItem
 381                                 if ( thisItemData['menu-item-parent-id'] === prevItemId )
 382                                         break;
 383                                 thisItem.shiftHorizontally( 1 );
 384                                 break;
 385                         }
 386                         $this.focus();
 387                         api.registerChange();
 388                         api.refreshKeyboardAccessibility();
 389                         api.refreshAdvancedAccessibility();
 390                 },
 391
 392                 initAccessibility : function() {
 393                         var menu = $( '#menu-to-edit' );
 394
 395                         api.refreshKeyboardAccessibility();
 396                         api.refreshAdvancedAccessibility();
 397
 398                         // Refresh the accessibility when the user comes close to the item in any way
 399                         menu.on( 'mouseenter.refreshAccessibility focus.refreshAccessibility touchstart.refreshAccessibility' , '.menu-item' , function(){
 400                                 api.refreshAdvancedAccessibilityOfItem( $( this ).find( 'a.item-edit' ) );
 401                         } );
 402
 403                         // We have to update on click as well because we might hover first, change the item, and then click.
 404                         menu.on( 'click', 'a.item-edit', function() {
 405                                 api.refreshAdvancedAccessibilityOfItem( $( this ) );
 406                         } );
 407
 408                         // Links for moving items
 409                         menu.on( 'click', '.menus-move', function () {
 410                                 var $this = $( this ),
 411                                         dir = $this.data( 'dir' );
 412
 413                                 if ( 'undefined' !== typeof dir ) {
 414                                         api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), dir );
 415                                 }
 416                         });
 417                 },
 418
 419                 /**
 420                  * refreshAdvancedAccessibilityOfItem( [itemToRefresh] )
 421                  *
 422                  * Refreshes advanced accessibility buttons for one menu item.
 423                  * Shows or hides buttons based on the location of the menu item.
 424                  *
 425                  * @param  {object} itemToRefresh The menu item that might need its advanced accessibility buttons refreshed
 426                  */
 427                 refreshAdvancedAccessibilityOfItem : function( itemToRefresh ) {
 428
 429                         // Only refresh accessibility when necessary
 430                         if ( true !== $( itemToRefresh ).data( 'needs_accessibility_refresh' ) ) {
 431                                 return;
 432                         }
 433
 434                         var thisLink, thisLinkText, primaryItems, itemPosition, title,
 435                                 parentItem, parentItemId, parentItemName, subItems,
 436                                 $this = $( itemToRefresh ),
 437                                 menuItem = $this.closest( 'li.menu-item' ).first(),
 438                                 depth = menuItem.menuItemDepth(),
 439                                 isPrimaryMenuItem = ( 0 === depth ),
 440                                 itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
 441                                 position = parseInt( menuItem.index(), 10 ),
 442                                 prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
 443                                 prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
 444                                 prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
 445                                 totalMenuItems = $('#menu-to-edit li').length,
 446                                 hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 447
 448                                 menuItem.find( '.field-move' ).toggle( totalMenuItems > 1 );
 449
 450                         // Where can they move this menu item?
 451                         if ( 0 !== position ) {
 452                                 thisLink = menuItem.find( '.menus-move-up' );
 453                                 thisLink.attr( 'aria-label', menus.moveUp ).css( 'display', 'inline' );
 454                         }
 455
 456                         if ( 0 !== position && isPrimaryMenuItem ) {
 457                                 thisLink = menuItem.find( '.menus-move-top' );
 458                                 thisLink.attr( 'aria-label', menus.moveToTop ).css( 'display', 'inline' );
 459                         }
 460
 461                         if ( position + 1 !== totalMenuItems && 0 !== position ) {
 462                                 thisLink = menuItem.find( '.menus-move-down' );
 463                                 thisLink.attr( 'aria-label', menus.moveDown ).css( 'display', 'inline' );
 464                         }
 465
 466                         if ( 0 === position && 0 !== hasSameDepthSibling ) {
 467                                 thisLink = menuItem.find( '.menus-move-down' );
 468                                 thisLink.attr( 'aria-label', menus.moveDown ).css( 'display', 'inline' );
 469                         }
 470
 471                         if ( ! isPrimaryMenuItem ) {
 472                                 thisLink = menuItem.find( '.menus-move-left' ),
 473                                 thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
 474                                 thisLink.attr( 'aria-label', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).text( thisLinkText ).css( 'display', 'inline' );
 475                         }
 476
 477                         if ( 0 !== position ) {
 478                                 if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
 479                                         thisLink = menuItem.find( '.menus-move-right' ),
 480                                         thisLinkText = menus.under.replace( '%s', prevItemNameRight );
 481                                         thisLink.attr( 'aria-label', menus.moveUnder.replace( '%s', prevItemNameRight ) ).text( thisLinkText ).css( 'display', 'inline' );
 482                                 }
 483                         }
 484
 485                         if ( isPrimaryMenuItem ) {
 486                                 primaryItems = $( '.menu-item-depth-0' ),
 487                                 itemPosition = primaryItems.index( menuItem ) + 1,
 488                                 totalMenuItems = primaryItems.length,
 489
 490                                 // String together help text for primary menu items
 491                                 title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
 492                         } else {
 493                                 parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
 494                                 parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
 495                                 parentItemName = parentItem.find( '.menu-item-title' ).text(),
 496                                 subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
 497                                 itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 498
 499                                 // String together help text for sub menu items
 500                                 title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
 501                         }
 502
 503                         // @todo Consider to update just the `aria-label` attribute.
 504                         $this.attr( 'aria-label', title ).text( title );
 505
 506                         // Mark this item's accessibility as refreshed
 507                         $this.data( 'needs_accessibility_refresh', false );
 508                 },
 509
 510                 /**
 511                  * refreshAdvancedAccessibility
 512                  *
 513                  * Hides all advanced accessibility buttons and marks them for refreshing.
 514                  */
 515                 refreshAdvancedAccessibility : function() {
 516
 517                         // Hide all the move buttons by default.
 518                         $( '.menu-item-settings .field-move .menus-move' ).hide();
 519
 520                         // Mark all menu items as unprocessed
 521                         $( 'a.item-edit' ).data( 'needs_accessibility_refresh', true );
 522
 523                         // All open items have to be refreshed or they will show no links
 524                         $( '.menu-item-edit-active a.item-edit' ).each( function() {
 525                                 api.refreshAdvancedAccessibilityOfItem( this );
 526                         } );
 527                 },
 528
 529                 refreshKeyboardAccessibility : function() {
 530                         $( 'a.item-edit' ).off( 'focus' ).on( 'focus', function(){
 531                                 $(this).off( 'keydown' ).on( 'keydown', function(e){
 532
 533                                         var arrows,
 534                                                 $this = $( this ),
 535                                                 thisItem = $this.parents( 'li.menu-item' ),
 536                                                 thisItemData = thisItem.getItemData();
 537
 538                                         // Bail if it's not an arrow key
 539                                         if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
 540                                                 return;
 541
 542                                         // Avoid multiple keydown events
 543                                         $this.off('keydown');
 544
 545                                         // Bail if there is only one menu item
 546                                         if ( 1 === $('#menu-to-edit li').length )
 547                                                 return;
 548
 549                                         // If RTL, swap left/right arrows
 550                                         arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
 551                                         if ( $('body').hasClass('rtl') )
 552                                                 arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
 553
 554                                         switch ( arrows[e.which] ) {
 555                                         case 'up':
 556                                                 api.moveMenuItem( $this, 'up' );
 557                                                 break;
 558                                         case 'down':
 559                                                 api.moveMenuItem( $this, 'down' );
 560                                                 break;
 561                                         case 'left':
 562                                                 api.moveMenuItem( $this, 'left' );
 563                                                 break;
 564                                         case 'right':
 565                                                 api.moveMenuItem( $this, 'right' );
 566                                                 break;
 567                                         }
 568                                         // Put focus back on same menu item
 569                                         $( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
 570                                         return false;
 571                                 });
 572                         });
 573                 },
 574
 575                 initPreviewing : function() {
 576                         // Update the item handle title when the navigation label is changed.
 577                         $( '#menu-to-edit' ).on( 'change input', '.edit-menu-item-title', function(e) {
 578                                 var input = $( e.currentTarget ), title, titleEl;
 579                                 title = input.val();
 580                                 titleEl = input.closest( '.menu-item' ).find( '.menu-item-title' );
 581                                 // Don't update to empty title.
 582                                 if ( title ) {
 583                                         titleEl.text( title ).removeClass( 'no-title' );
 584                                 } else {
 585                                         titleEl.text( navMenuL10n.untitled ).addClass( 'no-title' );
 586                                 }
 587                         } );
 588                 },
 589
 590                 initToggles : function() {
 591                         // init postboxes
 592                         postboxes.add_postbox_toggles('nav-menus');
 593
 594                         // adjust columns functions for menus UI
 595                         columns.useCheckboxesForHidden();
 596                         columns.checked = function(field) {
 597                                 $('.field-' + field).removeClass('hidden-field');
 598                         };
 599                         columns.unchecked = function(field) {
 600                                 $('.field-' + field).addClass('hidden-field');
 601                         };
 602                         // hide fields
 603                         api.menuList.hideAdvancedMenuItemFields();
 604
 605                         $('.hide-postbox-tog').click(function () {
 606                                 var hidden = $( '.accordion-container li.accordion-section' ).filter(':hidden').map(function() { return this.id; }).get().join(',');
 607                                 $.post(ajaxurl, {
 608                                         action: 'closed-postboxes',
 609                                         hidden: hidden,
 610                                         closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
 611                                         page: 'nav-menus'
 612                                 });
 613                         });
 614                 },
 615
 616                 initSortables : function() {
 617                         var currentDepth = 0, originalDepth, minDepth, maxDepth,
 618                                 prev, next, prevBottom, nextThreshold, helperHeight, transport,
 619                                 menuEdge = api.menuList.offset().left,
 620                                 body = $('body'), maxChildDepth,
 621                                 menuMaxDepth = initialMenuMaxDepth();
 622
 623                         if( 0 !== $( '#menu-to-edit li' ).length )
 624                                 $( '.drag-instructions' ).show();
 625
 626                         // Use the right edge if RTL.
 627                         menuEdge += api.isRTL ? api.menuList.width() : 0;
 628
 629                         api.menuList.sortable({
 630                                 handle: '.menu-item-handle',
 631                                 placeholder: 'sortable-placeholder',
 632                                 items: api.options.sortableItems,
 633                                 start: function(e, ui) {
 634                                         var height, width, parent, children, tempHolder;
 635
 636                                         // handle placement for rtl orientation
 637                                         if ( api.isRTL )
 638                                                 ui.item[0].style.right = 'auto';
 639
 640                                         transport = ui.item.children('.menu-item-transport');
 641
 642                                         // Set depths. currentDepth must be set before children are located.
 643                                         originalDepth = ui.item.menuItemDepth();
 644                                         updateCurrentDepth(ui, originalDepth);
 645
 646                                         // Attach child elements to parent
 647                                         // Skip the placeholder
 648                                         parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
 649                                         children = parent.childMenuItems();
 650                                         transport.append( children );
 651
 652                                         // Update the height of the placeholder to match the moving item.
 653                                         height = transport.outerHeight();
 654                                         // If there are children, account for distance between top of children and parent
 655                                         height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
 656                                         height += ui.helper.outerHeight();
 657                                         helperHeight = height;
 658                                         height -= 2; // Subtract 2 for borders
 659                                         ui.placeholder.height(height);
 660
 661                                         // Update the width of the placeholder to match the moving item.
 662                                         maxChildDepth = originalDepth;
 663                                         children.each(function(){
 664                                                 var depth = $(this).menuItemDepth();
 665                                                 maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
 666                                         });
 667                                         width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width
 668                                         width += api.depthToPx(maxChildDepth - originalDepth); // Account for children
 669                                         width -= 2; // Subtract 2 for borders
 670                                         ui.placeholder.width(width);
 671
 672                                         // Update the list of menu items.
 673                                         tempHolder = ui.placeholder.next( '.menu-item' );
 674                                         tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder
 675                                         ui.placeholder.detach(); // detach or jQuery UI will think the placeholder is a menu item
 676                                         $(this).sortable( 'refresh' ); // The children aren't sortable. We should let jQ UI know.
 677                                         ui.item.after( ui.placeholder ); // reattach the placeholder.
 678                                         tempHolder.css('margin-top', 0); // reset the margin
 679
 680                                         // Now that the element is complete, we can update...
 681                                         updateSharedVars(ui);
 682                                 },
 683                                 stop: function(e, ui) {
 684                                         var children, subMenuTitle,
 685                                                 depthChange = currentDepth - originalDepth;
 686
 687                                         // Return child elements to the list
 688                                         children = transport.children().insertAfter(ui.item);
 689
 690                                         // Add "sub menu" description
 691                                         subMenuTitle = ui.item.find( '.item-title .is-submenu' );
 692                                         if ( 0 < currentDepth )
 693                                                 subMenuTitle.show();
 694                                         else
 695                                                 subMenuTitle.hide();
 696
 697                                         // Update depth classes
 698                                         if ( 0 !== depthChange ) {
 699                                                 ui.item.updateDepthClass( currentDepth );
 700                                                 children.shiftDepthClass( depthChange );
 701                                                 updateMenuMaxDepth( depthChange );
 702                                         }
 703                                         // Register a change
 704                                         api.registerChange();
 705                                         // Update the item data.
 706                                         ui.item.updateParentMenuItemDBId();
 707
 708                                         // address sortable's incorrectly-calculated top in opera
 709                                         ui.item[0].style.top = 0;
 710
 711                                         // handle drop placement for rtl orientation
 712                                         if ( api.isRTL ) {
 713                                                 ui.item[0].style.left = 'auto';
 714                                                 ui.item[0].style.right = 0;
 715                                         }
 716
 717                                         api.refreshKeyboardAccessibility();
 718                                         api.refreshAdvancedAccessibility();
 719                                 },
 720                                 change: function(e, ui) {
 721                                         // Make sure the placeholder is inside the menu.
 722                                         // Otherwise fix it, or we're in trouble.
 723                                         if( ! ui.placeholder.parent().hasClass('menu') )
 724                                                 (prev.length) ? prev.after( ui.placeholder ) : api.menuList.prepend( ui.placeholder );
 725
 726                                         updateSharedVars(ui);
 727                                 },
 728                                 sort: function(e, ui) {
 729                                         var offset = ui.helper.offset(),
 730                                                 edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
 731                                                 depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
 732
 733                                         // Check and correct if depth is not within range.
 734                                         // Also, if the dragged element is dragged upwards over
 735                                         // an item, shift the placeholder to a child position.
 736                                         if ( depth > maxDepth || offset.top < ( prevBottom - api.options.targetTolerance ) ) {
 737                                                 depth = maxDepth;
 738                                         } else if ( depth < minDepth ) {
 739                                                 depth = minDepth;
 740                                         }
 741
 742                                         if( depth != currentDepth )
 743                                                 updateCurrentDepth(ui, depth);
 744
 745                                         // If we overlap the next element, manually shift downwards
 746                                         if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
 747                                                 next.after( ui.placeholder );
 748                                                 updateSharedVars( ui );
 749                                                 $( this ).sortable( 'refreshPositions' );
 750                                         }
 751                                 }
 752                         });
 753
 754                         function updateSharedVars(ui) {
 755                                 var depth;
 756
 757                                 prev = ui.placeholder.prev( '.menu-item' );
 758                                 next = ui.placeholder.next( '.menu-item' );
 759
 760                                 // Make sure we don't select the moving item.
 761                                 if( prev[0] == ui.item[0] ) prev = prev.prev( '.menu-item' );
 762                                 if( next[0] == ui.item[0] ) next = next.next( '.menu-item' );
 763
 764                                 prevBottom = (prev.length) ? prev.offset().top + prev.height() : 0;
 765                                 nextThreshold = (next.length) ? next.offset().top + next.height() / 3 : 0;
 766                                 minDepth = (next.length) ? next.menuItemDepth() : 0;
 767
 768                                 if( prev.length )
 769                                         maxDepth = ( (depth = prev.menuItemDepth() + 1) > api.options.globalMaxDepth ) ? api.options.globalMaxDepth : depth;
 770                                 else
 771                                         maxDepth = 0;
 772                         }
 773
 774                         function updateCurrentDepth(ui, depth) {
 775                                 ui.placeholder.updateDepthClass( depth, currentDepth );
 776                                 currentDepth = depth;
 777                         }
 778
 779                         function initialMenuMaxDepth() {
 780                                 if( ! body[0].className ) return 0;
 781                                 var match = body[0].className.match(/menu-max-depth-(\d+)/);
 782                                 return match && match[1] ? parseInt( match[1], 10 ) : 0;
 783                         }
 784
 785                         function updateMenuMaxDepth( depthChange ) {
 786                                 var depth, newDepth = menuMaxDepth;
 787                                 if ( depthChange === 0 ) {
 788                                         return;
 789                                 } else if ( depthChange > 0 ) {
 790                                         depth = maxChildDepth + depthChange;
 791                                         if( depth > menuMaxDepth )
 792                                                 newDepth = depth;
 793                                 } else if ( depthChange < 0 && maxChildDepth == menuMaxDepth ) {
 794                                         while( ! $('.menu-item-depth-' + newDepth, api.menuList).length && newDepth > 0 )
 795                                                 newDepth--;
 796                                 }
 797                                 // Update the depth class.
 798                                 body.removeClass( 'menu-max-depth-' + menuMaxDepth ).addClass( 'menu-max-depth-' + newDepth );
 799                                 menuMaxDepth = newDepth;
 800                         }
 801                 },
 802
 803                 initManageLocations : function () {
 804                         $('#menu-locations-wrap form').submit(function(){
 805                                 window.onbeforeunload = null;
 806                         });
 807                         $('.menu-location-menus select').on('change', function () {
 808                                 var editLink = $(this).closest('tr').find('.locations-edit-menu-link');
 809                                 if ($(this).find('option:selected').data('orig'))
 810                                         editLink.show();
 811                                 else
 812                                         editLink.hide();
 813                         });
 814                 },
 815
 816                 attachMenuEditListeners : function() {
 817                         var that = this;
 818                         $('#update-nav-menu').bind('click', function(e) {
 819                                 if ( e.target && e.target.className ) {
 820                                         if ( -1 != e.target.className.indexOf('item-edit') ) {
 821                                                 return that.eventOnClickEditLink(e.target);
 822                                         } else if ( -1 != e.target.className.indexOf('menu-save') ) {
 823                                                 return that.eventOnClickMenuSave(e.target);
 824                                         } else if ( -1 != e.target.className.indexOf('menu-delete') ) {
 825                                                 return that.eventOnClickMenuDelete(e.target);
 826                                         } else if ( -1 != e.target.className.indexOf('item-delete') ) {
 827                                                 return that.eventOnClickMenuItemDelete(e.target);
 828                                         } else if ( -1 != e.target.className.indexOf('item-cancel') ) {
 829                                                 return that.eventOnClickCancelLink(e.target);
 830                                         }
 831                                 }
 832                         });
 833                         $('#add-custom-links input[type="text"]').keypress(function(e){
 834                                 $('#customlinkdiv').removeClass('form-invalid');
 835
 836                                 if ( e.keyCode === 13 ) {
 837                                         e.preventDefault();
 838                                         $( '#submit-customlinkdiv' ).click();
 839                                 }
 840                         });
 841                 },
 842
 843                 attachMenuSaveSubmitListeners : function() {
 844                         /*
 845                          * When a navigation menu is saved, store a JSON representation of all form data
 846                          * in a single input to avoid PHP `max_input_vars` limitations. See #14134.
 847                          */
 848                         $( '#update-nav-menu' ).submit( function() {
 849                                 var navMenuData = $( '#update-nav-menu' ).serializeArray();
 850                                 $( '[name="nav-menu-data"]' ).val( JSON.stringify( navMenuData ) );
 851                         });
 852                 },
 853
 854                 attachThemeLocationsListeners : function() {
 855                         var loc = $('#nav-menu-theme-locations'), params = {};
 856                         params.action = 'menu-locations-save';
 857                         params['menu-settings-column-nonce'] = $('#menu-settings-column-nonce').val();
 858                         loc.find('input[type="submit"]').click(function() {
 859                                 loc.find('select').each(function() {
 860                                         params[this.name] = $(this).val();
 861                                 });
 862                                 loc.find( '.spinner' ).addClass( 'is-active' );
 863                                 $.post( ajaxurl, params, function() {
 864                                         loc.find( '.spinner' ).removeClass( 'is-active' );
 865                                 });
 866                                 return false;
 867                         });
 868                 },
 869
 870                 attachQuickSearchListeners : function() {
 871                         var searchTimer,
 872                                 inputEvent;
 873
 874                         // Prevent form submission.
 875                         $( '#nav-menu-meta' ).on( 'submit', function( event ) {
 876                                 event.preventDefault();
 877                         });
 878
 879                         /*
 880                          * Use feature detection to determine whether inputs should use
 881                          * the `keyup` or `input` event. Input is preferred but lacks support
 882                          * in legacy browsers. See changeset 34078, see also ticket #26600#comment:59
 883                          */
 884                         if ( 'oninput' in document.createElement( 'input' ) ) {
 885                                 inputEvent = 'input';
 886                         } else {
 887                                 inputEvent = 'keyup';
 888                         }
 889
 890                         $( '#nav-menu-meta' ).on( inputEvent, '.quick-search', function() {
 891                                 var $this = $( this );
 892
 893                                 $this.attr( 'autocomplete', 'off' );
 894
 895                                 if ( searchTimer ) {
 896                                         clearTimeout( searchTimer );
 897                                 }
 898
 899                                 searchTimer = setTimeout( function() {
 900                                         api.updateQuickSearchResults( $this );
 901                                 }, 500 );
 902                         }).on( 'blur', '.quick-search', function() {
 903                                 api.lastSearch = '';
 904                         });
 905                 },
 906
 907                 updateQuickSearchResults : function(input) {
 908                         var panel, params,
 909                                 minSearchLength = 2,
 910                                 q = input.val();
 911
 912                         /*
 913                          * Minimum characters for a search. Also avoid a new AJAX search when
 914                          * the pressed key (e.g. arrows) doesn't change the searched term.
 915                          */
 916                         if ( q.length < minSearchLength || api.lastSearch == q ) {
 917                                 return;
 918                         }
 919
 920                         api.lastSearch = q;
 921
 922                         panel = input.parents('.tabs-panel');
 923                         params = {
 924                                 'action': 'menu-quick-search',
 925                                 'response-format': 'markup',
 926                                 'menu': $('#menu').val(),
 927                                 'menu-settings-column-nonce': $('#menu-settings-column-nonce').val(),
 928                                 'q': q,
 929                                 'type': input.attr('name')
 930                         };
 931
 932                         $( '.spinner', panel ).addClass( 'is-active' );
 933
 934                         $.post( ajaxurl, params, function(menuMarkup) {
 935                                 api.processQuickSearchQueryResponse(menuMarkup, params, panel);
 936                         });
 937                 },
 938
 939                 addCustomLink : function( processMethod ) {
 940                         var url = $('#custom-menu-item-url').val(),
 941                                 label = $('#custom-menu-item-name').val();
 942
 943                         processMethod = processMethod || api.addMenuItemToBottom;
 944
 945                         if ( '' === url || 'http://' == url ) {
 946                                 $('#customlinkdiv').addClass('form-invalid');
 947                                 return false;
 948                         }
 949
 950                         // Show the ajax spinner
 951                         $( '.customlinkdiv .spinner' ).addClass( 'is-active' );
 952                         this.addLinkToMenu( url, label, processMethod, function() {
 953                                 // Remove the ajax spinner
 954                                 $( '.customlinkdiv .spinner' ).removeClass( 'is-active' );
 955                                 // Set custom link form back to defaults
 956                                 $('#custom-menu-item-name').val('').blur();
 957                                 $('#custom-menu-item-url').val('http://');
 958                         });
 959                 },
 960
 961                 addLinkToMenu : function(url, label, processMethod, callback) {
 962                         processMethod = processMethod || api.addMenuItemToBottom;
 963                         callback = callback || function(){};
 964
 965                         api.addItemToMenu({
 966                                 '-1': {
 967                                         'menu-item-type': 'custom',
 968                                         'menu-item-url': url,
 969                                         'menu-item-title': label
 970                                 }
 971                         }, processMethod, callback);
 972                 },
 973
 974                 addItemToMenu : function(menuItem, processMethod, callback) {
 975                         var menu = $('#menu').val(),
 976                                 nonce = $('#menu-settings-column-nonce').val(),
 977                                 params;
 978
 979                         processMethod = processMethod || function(){};
 980                         callback = callback || function(){};
 981
 982                         params = {
 983                                 'action': 'add-menu-item',
 984                                 'menu': menu,
 985                                 'menu-settings-column-nonce': nonce,
 986                                 'menu-item': menuItem
 987                         };
 988
 989                         $.post( ajaxurl, params, function(menuMarkup) {
 990                                 var ins = $('#menu-instructions');
 991
 992                                 menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces
 993                                 processMethod(menuMarkup, params);
 994
 995                                 // Make it stand out a bit more visually, by adding a fadeIn
 996                                 $( 'li.pending' ).hide().fadeIn('slow');
 997                                 $( '.drag-instructions' ).show();
 998                                 if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
 999                                         ins.addClass( 'menu-instructions-inactive' );
1000
1001                                 callback();
1002                         });
1003                 },
1004
1005                 /**
1006                  * Process the add menu item request response into menu list item.
1007                  *
1008                  * @param string menuMarkup The text server response of menu item markup.
1009                  * @param object req The request arguments.
1010                  */
1011                 addMenuItemToBottom : function( menuMarkup ) {
1012                         $(menuMarkup).hideAdvancedMenuItemFields().appendTo( api.targetList );
1013                         api.refreshKeyboardAccessibility();
1014                         api.refreshAdvancedAccessibility();
1015                 },
1016
1017                 addMenuItemToTop : function( menuMarkup ) {
1018                         $(menuMarkup).hideAdvancedMenuItemFields().prependTo( api.targetList );
1019                         api.refreshKeyboardAccessibility();
1020                         api.refreshAdvancedAccessibility();
1021                 },
1022
1023                 attachUnsavedChangesListener : function() {
1024                         $('#menu-management input, #menu-management select, #menu-management, #menu-management textarea, .menu-location-menus select').change(function(){
1025                                 api.registerChange();
1026                         });
1027
1028                         if ( 0 !== $('#menu-to-edit').length || 0 !== $('.menu-location-menus select').length ) {
1029                                 window.onbeforeunload = function(){
1030                                         if ( api.menusChanged )
1031                                                 return navMenuL10n.saveAlert;
1032                                 };
1033                         } else {
1034                                 // Make the post boxes read-only, as they can't be used yet
1035                                 $( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
1036                         }
1037                 },
1038
1039                 registerChange : function() {
1040                         api.menusChanged = true;
1041                 },
1042
1043                 attachTabsPanelListeners : function() {
1044                         $('#menu-settings-column').bind('click', function(e) {
1045                                 var selectAreaMatch, panelId, wrapper, items,
1046                                         target = $(e.target);
1047
1048                                 if ( target.hasClass('nav-tab-link') ) {
1049
1050                                         panelId = target.data( 'type' );
1051
1052                                         wrapper = target.parents('.accordion-section-content').first();
1053
1054                                         // upon changing tabs, we want to uncheck all checkboxes
1055                                         $('input', wrapper).removeAttr('checked');
1056
1057                                         $('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
1058                                         $('#' + panelId, wrapper).removeClass('tabs-panel-inactive').addClass('tabs-panel-active');
1059
1060                                         $('.tabs', wrapper).removeClass('tabs');
1061                                         target.parent().addClass('tabs');
1062
1063                                         // select the search bar
1064                                         $('.quick-search', wrapper).focus();
1065
1066                                         // Hide controls in the search tab if no items found.
1067                                         if ( ! wrapper.find( '.tabs-panel-active .menu-item-title' ).length ) {
1068                                                 wrapper.addClass( 'has-no-menu-item' );
1069                                         } else {
1070                                                 wrapper.removeClass( 'has-no-menu-item' );
1071                                         }
1072
1073                                         e.preventDefault();
1074                                 } else if ( target.hasClass('select-all') ) {
1075                                         selectAreaMatch = /#(.*)$/.exec(e.target.href);
1076                                         if ( selectAreaMatch && selectAreaMatch[1] ) {
1077                                                 items = $('#' + selectAreaMatch[1] + ' .tabs-panel-active .menu-item-title input');
1078                                                 if( items.length === items.filter(':checked').length )
1079                                                         items.removeAttr('checked');
1080                                                 else
1081                                                         items.prop('checked', true);
1082                                                 return false;
1083                                         }
1084                                 } else if ( target.hasClass('submit-add-to-menu') ) {
1085                                         api.registerChange();
1086
1087                                         if ( e.target.id && 'submit-customlinkdiv' == e.target.id )
1088                                                 api.addCustomLink( api.addMenuItemToBottom );
1089                                         else if ( e.target.id && -1 != e.target.id.indexOf('submit-') )
1090                                                 $('#' + e.target.id.replace(/submit-/, '')).addSelectedToMenu( api.addMenuItemToBottom );
1091                                         return false;
1092                                 }
1093                         });
1094
1095                         /*
1096                          * Delegate the `click` event and attach it just to the pagination
1097                          * links thus excluding the current page `<span>`. See ticket #35577.
1098                          */
1099                         $( '#nav-menu-meta' ).on( 'click', 'a.page-numbers', function() {
1100                                 var $container = $( this ).closest( '.inside' );
1101
1102                                 $.post( ajaxurl, this.href.replace( /.*\?/, '' ).replace( /action=([^&]*)/, '' ) + '&action=menu-get-metabox',
1103                                         function( resp ) {
1104                                                 var metaBoxData = $.parseJSON( resp ),
1105                                                         toReplace;
1106
1107                                                 if ( -1 === resp.indexOf( 'replace-id' ) ) {
1108                                                         return;
1109                                                 }
1110
1111                                                 // Get the post type menu meta box to update.
1112                                                 toReplace = document.getElementById( metaBoxData['replace-id'] );
1113
1114                                                 if ( ! metaBoxData.markup || ! toReplace ) {
1115                                                         return;
1116                                                 }
1117
1118                                                 // Update the post type menu meta box with new content from the response.
1119                                                 $container.html( metaBoxData.markup );
1120                                         }
1121                                 );
1122
1123                                 return false;
1124                         });
1125                 },
1126
1127                 eventOnClickEditLink : function(clickedEl) {
1128                         var settings, item,
1129                         matchedSection = /#(.*)$/.exec(clickedEl.href);
1130                         if ( matchedSection && matchedSection[1] ) {
1131                                 settings = $('#'+matchedSection[1]);
1132                                 item = settings.parent();
1133                                 if( 0 !== item.length ) {
1134                                         if( item.hasClass('menu-item-edit-inactive') ) {
1135                                                 if( ! settings.data('menu-item-data') ) {
1136                                                         settings.data( 'menu-item-data', settings.getItemData() );
1137                                                 }
1138                                                 settings.slideDown('fast');
1139                                                 item.removeClass('menu-item-edit-inactive')
1140                                                         .addClass('menu-item-edit-active');
1141                                         } else {
1142                                                 settings.slideUp('fast');
1143                                                 item.removeClass('menu-item-edit-active')
1144                                                         .addClass('menu-item-edit-inactive');
1145                                         }
1146                                         return false;
1147                                 }
1148                         }
1149                 },
1150
1151                 eventOnClickCancelLink : function(clickedEl) {
1152                         var settings = $( clickedEl ).closest( '.menu-item-settings' ),
1153                                 thisMenuItem = $( clickedEl ).closest( '.menu-item' );
1154                         thisMenuItem.removeClass('menu-item-edit-active').addClass('menu-item-edit-inactive');
1155                         settings.setItemData( settings.data('menu-item-data') ).hide();
1156                         return false;
1157                 },
1158
1159                 eventOnClickMenuSave : function() {
1160                         var locs = '',
1161                         menuName = $('#menu-name'),
1162                         menuNameVal = menuName.val();
1163                         // Cancel and warn if invalid menu name
1164                         if( !menuNameVal || menuNameVal == menuName.attr('title') || !menuNameVal.replace(/\s+/, '') ) {
1165                                 menuName.parent().addClass('form-invalid');
1166                                 return false;
1167                         }
1168                         // Copy menu theme locations
1169                         $('#nav-menu-theme-locations select').each(function() {
1170                                 locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
1171                         });
1172                         $('#update-nav-menu').append( locs );
1173                         // Update menu item position data
1174                         api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
1175                         window.onbeforeunload = null;
1176
1177                         return true;
1178                 },
1179
1180                 eventOnClickMenuDelete : function() {
1181                         // Delete warning AYS
1182                         if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
1183                                 window.onbeforeunload = null;
1184                                 return true;
1185                         }
1186                         return false;
1187                 },
1188
1189                 eventOnClickMenuItemDelete : function(clickedEl) {
1190                         var itemID = parseInt(clickedEl.id.replace('delete-', ''), 10);
1191                         api.removeMenuItem( $('#menu-item-' + itemID) );
1192                         api.registerChange();
1193                         return false;
1194                 },
1195
1196                 /**
1197                  * Process the quick search response into a search result
1198                  *
1199                  * @param string resp The server response to the query.
1200                  * @param object req The request arguments.
1201                  * @param jQuery panel The tabs panel we're searching in.
1202                  */
1203                 processQuickSearchQueryResponse : function(resp, req, panel) {
1204                         var matched, newID,
1205                         takenIDs = {},
1206                         form = document.getElementById('nav-menu-meta'),
1207                         pattern = /menu-item[(\[^]\]*/,
1208                         $items = $('<div>').html(resp).find('li'),
1209                         wrapper = panel.closest( '.accordion-section-content' ),
1210                         $item;
1211
1212                         if( ! $items.length ) {
1213                                 $('.categorychecklist', panel).html( '<li><p>' + navMenuL10n.noResultsFound + '</p></li>' );
1214                                 $( '.spinner', panel ).removeClass( 'is-active' );
1215                                 wrapper.addClass( 'has-no-menu-item' );
1216                                 return;
1217                         }
1218
1219                         $items.each(function(){
1220                                 $item = $(this);
1221
1222                                 // make a unique DB ID number
1223                                 matched = pattern.exec($item.html());
1224
1225                                 if ( matched && matched[1] ) {
1226                                         newID = matched[1];
1227                                         while( form.elements['menu-item[' + newID + '][menu-item-type]'] || takenIDs[ newID ] ) {
1228                                                 newID--;
1229                                         }
1230
1231                                         takenIDs[newID] = true;
1232                                         if ( newID != matched[1] ) {
1233                                                 $item.html( $item.html().replace(new RegExp(
1234                                                         'menu-item\\[' + matched[1] + '\\]', 'g'),
1235                                                         'menu-item[' + newID + ']'
1236                                                 ) );
1237                                         }
1238                                 }
1239                         });
1240
1241                         $('.categorychecklist', panel).html( $items );
1242                         $( '.spinner', panel ).removeClass( 'is-active' );
1243                         wrapper.removeClass( 'has-no-menu-item' );
1244                 },
1245
1246                 removeMenuItem : function(el) {
1247                         var children = el.childMenuItems();
1248
1249                         el.addClass('deleting').animate({
1250                                         opacity : 0,
1251                                         height: 0
1252                                 }, 350, function() {
1253                                         var ins = $('#menu-instructions');
1254                                         el.remove();
1255                                         children.shiftDepthClass( -1 ).updateParentMenuItemDBId();
1256                                         if ( 0 === $( '#menu-to-edit li' ).length ) {
1257                                                 $( '.drag-instructions' ).hide();
1258                                                 ins.removeClass( 'menu-instructions-inactive' );
1259                                         }
1260                                         api.refreshAdvancedAccessibility();
1261                                 });
1262                 },
1263
1264                 depthToPx : function(depth) {
1265                         return depth * api.options.menuItemDepthPerLevel;
1266                 },
1267
1268                 pxToDepth : function(px) {
1269                         return Math.floor(px / api.options.menuItemDepthPerLevel);
1270                 }
1271
1272         };
1273
1274         $(document).ready(function(){ wpNavMenu.init(); });
1275
1276 })(jQuery);