wp-admin/js/nav-menu.js

   1 /**
   2  * WordPress Administration Navigation Menu
   3  * Interface JS functions
   4  *
   5  * @version 2.0.0
   6  *
   7  * @package WordPress
   8  * @subpackage Administration
   9  */
  10
  11 /* global menus, postboxes, columns, isRtl, navMenuL10n, ajaxurl */
  12
  13 var wpNavMenu;
  14
  15 (function($) {
  16
  17         var api;
  18
  19         api = wpNavMenu = {
  20
  21                 options : {
  22                         menuItemDepthPerLevel : 30, // Do not use directly. Use depthToPx and pxToDepth instead.
  23                         globalMaxDepth : 11
  24                 },
  25
  26                 menuList : undefined,   // Set in init.
  27                 targetList : undefined, // Set in init.
  28                 menusChanged : false,
  29                 isRTL: !! ( 'undefined' != typeof isRtl && isRtl ),
  30                 negateIfRTL: ( 'undefined' != typeof isRtl && isRtl ) ? -1 : 1,
  31
  32                 // Functions that run on init.
  33                 init : function() {
  34                         api.menuList = $('#menu-to-edit');
  35                         api.targetList = api.menuList;
  36
  37                         this.jQueryExtensions();
  38
  39                         this.attachMenuEditListeners();
  40
  41                         this.setupInputWithDefaultTitle();
  42                         this.attachQuickSearchListeners();
  43                         this.attachThemeLocationsListeners();
  44
  45                         this.attachTabsPanelListeners();
  46
  47                         this.attachUnsavedChangesListener();
  48
  49                         if ( api.menuList.length )
  50                                 this.initSortables();
  51
  52                         if ( menus.oneThemeLocationNoMenus )
  53                                 $( '#posttype-page' ).addSelectedToMenu( api.addMenuItemToBottom );
  54
  55                         this.initManageLocations();
  56
  57                         this.initAccessibility();
  58
  59                         this.initToggles();
  60
  61                         this.initPreviewing();
  62                 },
  63
  64                 jQueryExtensions : function() {
  65                         // jQuery extensions
  66                         $.fn.extend({
  67                                 menuItemDepth : function() {
  68                                         var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
  69                                         return api.pxToDepth( margin && -1 != margin.indexOf('px') ? margin.slice(0, -2) : 0 );
  70                                 },
  71                                 updateDepthClass : function(current, prev) {
  72                                         return this.each(function(){
  73                                                 var t = $(this);
  74                                                 prev = prev || t.menuItemDepth();
  75                                                 $(this).removeClass('menu-item-depth-'+ prev )
  76                                                         .addClass('menu-item-depth-'+ current );
  77                                         });
  78                                 },
  79                                 shiftDepthClass : function(change) {
  80                                         return this.each(function(){
  81                                                 var t = $(this),
  82                                                         depth = t.menuItemDepth();
  83                                                 $(this).removeClass('menu-item-depth-'+ depth )
  84                                                         .addClass('menu-item-depth-'+ (depth + change) );
  85                                         });
  86                                 },
  87                                 childMenuItems : function() {
  88                                         var result = $();
  89                                         this.each(function(){
  90                                                 var t = $(this), depth = t.menuItemDepth(), next = t.next();
  91                                                 while( next.length && next.menuItemDepth() > depth ) {
  92                                                         result = result.add( next );
  93                                                         next = next.next();
  94                                                 }
  95                                         });
  96                                         return result;
  97                                 },
  98                                 shiftHorizontally : function( dir ) {
  99                                         return this.each(function(){
 100                                                 var t = $(this),
 101                                                         depth = t.menuItemDepth(),
 102                                                         newDepth = depth + dir;
 103
 104                                                 // Change .menu-item-depth-n class
 105                                                 t.moveHorizontally( newDepth, depth );
 106                                         });
 107                                 },
 108                                 moveHorizontally : function( newDepth, depth ) {
 109                                         return this.each(function(){
 110                                                 var t = $(this),
 111                                                         children = t.childMenuItems(),
 112                                                         diff = newDepth - depth,
 113                                                         subItemText = t.find('.is-submenu');
 114
 115                                                 // Change .menu-item-depth-n class
 116                                                 t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
 117
 118                                                 // If it has children, move those too
 119                                                 if ( children ) {
 120                                                         children.each(function() {
 121                                                                 var t = $(this),
 122                                                                         thisDepth = t.menuItemDepth(),
 123                                                                         newDepth = thisDepth + diff;
 124                                                                 t.updateDepthClass(newDepth, thisDepth).updateParentMenuItemDBId();
 125                                                         });
 126                                                 }
 127
 128                                                 // Show "Sub item" helper text
 129                                                 if (0 === newDepth)
 130                                                         subItemText.hide();
 131                                                 else
 132                                                         subItemText.show();
 133                                         });
 134                                 },
 135                                 updateParentMenuItemDBId : function() {
 136                                         return this.each(function(){
 137                                                 var item = $(this),
 138                                                         input = item.find( '.menu-item-data-parent-id' ),
 139                                                         depth = parseInt( item.menuItemDepth(), 10 ),
 140                                                         parentDepth = depth - 1,
 141                                                         parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
 142
 143                                                 if ( 0 === depth ) { // Item is on the top level, has no parent
 144                                                         input.val(0);
 145                                                 } else { // Find the parent item, and retrieve its object id.
 146                                                         input.val( parent.find( '.menu-item-data-db-id' ).val() );
 147                                                 }
 148                                         });
 149                                 },
 150                                 hideAdvancedMenuItemFields : function() {
 151                                         return this.each(function(){
 152                                                 var that = $(this);
 153                                                 $('.hide-column-tog').not(':checked').each(function(){
 154                                                         that.find('.field-' + $(this).val() ).addClass('hidden-field');
 155                                                 });
 156                                         });
 157                                 },
 158                                 /**
 159                                  * Adds selected menu items to the menu.
 160                                  *
 161                                  * @param jQuery metabox The metabox jQuery object.
 162                                  */
 163                                 addSelectedToMenu : function(processMethod) {
 164                                         if ( 0 === $('#menu-to-edit').length ) {
 165                                                 return false;
 166                                         }
 167
 168                                         return this.each(function() {
 169                                                 var t = $(this), menuItems = {},
 170                                                         checkboxes = ( menus.oneThemeLocationNoMenus && 0 === t.find( '.tabs-panel-active .categorychecklist li input:checked' ).length ) ? t.find( '#page-all li input[type="checkbox"]' ) : t.find( '.tabs-panel-active .categorychecklist li input:checked' ),
 171                                                         re = /menu-item\[([^\]]*)/;
 172
 173                                                 processMethod = processMethod || api.addMenuItemToBottom;
 174
 175                                                 // If no items are checked, bail.
 176                                                 if ( !checkboxes.length )
 177                                                         return false;
 178
 179                                                 // Show the ajax spinner
 180                                                 t.find( '.spinner' ).addClass( 'is-active' );
 181
 182                                                 // Retrieve menu item data
 183                                                 $(checkboxes).each(function(){
 184                                                         var t = $(this),
 185                                                                 listItemDBIDMatch = re.exec( t.attr('name') ),
 186                                                                 listItemDBID = 'undefined' == typeof listItemDBIDMatch[1] ? 0 : parseInt(listItemDBIDMatch[1], 10);
 187
 188                                                         if ( this.className && -1 != this.className.indexOf('add-to-top') )
 189                                                                 processMethod = api.addMenuItemToTop;
 190                                                         menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
 191                                                 });
 192
 193                                                 // Add the items
 194                                                 api.addItemToMenu(menuItems, processMethod, function(){
 195                                                         // Deselect the items and hide the ajax spinner
 196                                                         checkboxes.removeAttr('checked');
 197                                                         t.find( '.spinner' ).removeClass( 'is-active' );
 198                                                 });
 199                                         });
 200                                 },
 201                                 getItemData : function( itemType, id ) {
 202                                         itemType = itemType || 'menu-item';
 203
 204                                         var itemData = {}, i,
 205                                         fields = [
 206                                                 'menu-item-db-id',
 207                                                 'menu-item-object-id',
 208                                                 'menu-item-object',
 209                                                 'menu-item-parent-id',
 210                                                 'menu-item-position',
 211                                                 'menu-item-type',
 212                                                 'menu-item-title',
 213                                                 'menu-item-url',
 214                                                 'menu-item-description',
 215                                                 'menu-item-attr-title',
 216                                                 'menu-item-target',
 217                                                 'menu-item-classes',
 218                                                 'menu-item-xfn'
 219                                         ];
 220
 221                                         if( !id && itemType == 'menu-item' ) {
 222                                                 id = this.find('.menu-item-data-db-id').val();
 223                                         }
 224
 225                                         if( !id ) return itemData;
 226
 227                                         this.find('input').each(function() {
 228                                                 var field;
 229                                                 i = fields.length;
 230                                                 while ( i-- ) {
 231                                                         if( itemType == 'menu-item' )
 232                                                                 field = fields[i] + '[' + id + ']';
 233                                                         else if( itemType == 'add-menu-item' )
 234                                                                 field = 'menu-item[' + id + '][' + fields[i] + ']';
 235
 236                                                         if (
 237                                                                 this.name &&
 238                                                                 field == this.name
 239                                                         ) {
 240                                                                 itemData[fields[i]] = this.value;
 241                                                         }
 242                                                 }
 243                                         });
 244
 245                                         return itemData;
 246                                 },
 247                                 setItemData : function( itemData, itemType, id ) { // Can take a type, such as 'menu-item', or an id.
 248                                         itemType = itemType || 'menu-item';
 249
 250                                         if( !id && itemType == 'menu-item' ) {
 251                                                 id = $('.menu-item-data-db-id', this).val();
 252                                         }
 253
 254                                         if( !id ) return this;
 255
 256                                         this.find('input').each(function() {
 257                                                 var t = $(this), field;
 258                                                 $.each( itemData, function( attr, val ) {
 259                                                         if( itemType == 'menu-item' )
 260                                                                 field = attr + '[' + id + ']';
 261                                                         else if( itemType == 'add-menu-item' )
 262                                                                 field = 'menu-item[' + id + '][' + attr + ']';
 263
 264                                                         if ( field == t.attr('name') ) {
 265                                                                 t.val( val );
 266                                                         }
 267                                                 });
 268                                         });
 269                                         return this;
 270                                 }
 271                         });
 272                 },
 273
 274                 countMenuItems : function( depth ) {
 275                         return $( '.menu-item-depth-' + depth ).length;
 276                 },
 277
 278                 moveMenuItem : function( $this, dir ) {
 279
 280                         var items, newItemPosition, newDepth,
 281                                 menuItems = $( '#menu-to-edit li' ),
 282                                 menuItemsCount = menuItems.length,
 283                                 thisItem = $this.parents( 'li.menu-item' ),
 284                                 thisItemChildren = thisItem.childMenuItems(),
 285                                 thisItemData = thisItem.getItemData(),
 286                                 thisItemDepth = parseInt( thisItem.menuItemDepth(), 10 ),
 287                                 thisItemPosition = parseInt( thisItem.index(), 10 ),
 288                                 nextItem = thisItem.next(),
 289                                 nextItemChildren = nextItem.childMenuItems(),
 290                                 nextItemDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1,
 291                                 prevItem = thisItem.prev(),
 292                                 prevItemDepth = parseInt( prevItem.menuItemDepth(), 10 ),
 293                                 prevItemId = prevItem.getItemData()['menu-item-db-id'];
 294
 295                         switch ( dir ) {
 296                         case 'up':
 297                                 newItemPosition = thisItemPosition - 1;
 298
 299                                 // Already at top
 300                                 if ( 0 === thisItemPosition )
 301                                         break;
 302
 303                                 // If a sub item is moved to top, shift it to 0 depth
 304                                 if ( 0 === newItemPosition && 0 !== thisItemDepth )
 305                                         thisItem.moveHorizontally( 0, thisItemDepth );
 306
 307                                 // If prev item is sub item, shift to match depth
 308                                 if ( 0 !== prevItemDepth )
 309                                         thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
 310
 311                                 // Does this item have sub items?
 312                                 if ( thisItemChildren ) {
 313                                         items = thisItem.add( thisItemChildren );
 314                                         // Move the entire block
 315                                         items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 316                                 } else {
 317                                         thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 318                                 }
 319                                 break;
 320                         case 'down':
 321                                 // Does this item have sub items?
 322                                 if ( thisItemChildren ) {
 323                                         items = thisItem.add( thisItemChildren ),
 324                                                 nextItem = menuItems.eq( items.length + thisItemPosition ),
 325                                                 nextItemChildren = 0 !== nextItem.childMenuItems().length;
 326
 327                                         if ( nextItemChildren ) {
 328                                                 newDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1;
 329                                                 thisItem.moveHorizontally( newDepth, thisItemDepth );
 330                                         }
 331
 332                                         // Have we reached the bottom?
 333                                         if ( menuItemsCount === thisItemPosition + items.length )
 334                                                 break;
 335
 336                                         items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
 337                                 } else {
 338                                         // If next item has sub items, shift depth
 339                                         if ( 0 !== nextItemChildren.length )
 340                                                 thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
 341
 342                                         // Have we reached the bottom
 343                                         if ( menuItemsCount === thisItemPosition + 1 )
 344                                                 break;
 345                                         thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
 346                                 }
 347                                 break;
 348                         case 'top':
 349                                 // Already at top
 350                                 if ( 0 === thisItemPosition )
 351                                         break;
 352                                 // Does this item have sub items?
 353                                 if ( thisItemChildren ) {
 354                                         items = thisItem.add( thisItemChildren );
 355                                         // Move the entire block
 356                                         items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 357                                 } else {
 358                                         thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 359                                 }
 360                                 break;
 361                         case 'left':
 362                                 // As far left as possible
 363                                 if ( 0 === thisItemDepth )
 364                                         break;
 365                                 thisItem.shiftHorizontally( -1 );
 366                                 break;
 367                         case 'right':
 368                                 // Can't be sub item at top
 369                                 if ( 0 === thisItemPosition )
 370                                         break;
 371                                 // Already sub item of prevItem
 372                                 if ( thisItemData['menu-item-parent-id'] === prevItemId )
 373                                         break;
 374                                 thisItem.shiftHorizontally( 1 );
 375                                 break;
 376                         }
 377                         $this.focus();
 378                         api.registerChange();
 379                         api.refreshKeyboardAccessibility();
 380                         api.refreshAdvancedAccessibility();
 381                 },
 382
 383                 initAccessibility : function() {
 384                         var menu = $( '#menu-to-edit' );
 385
 386                         api.refreshKeyboardAccessibility();
 387                         api.refreshAdvancedAccessibility();
 388
 389                         // Refresh the accessibility when the user comes close to the item in any way
 390                         menu.on( 'mouseenter.refreshAccessibility focus.refreshAccessibility touchstart.refreshAccessibility' , '.menu-item' , function(){
 391                                 api.refreshAdvancedAccessibilityOfItem( $( this ).find( '.item-edit' ) );
 392                         } );
 393
 394                         // We have to update on click as well because we might hover first, change the item, and then click.
 395                         menu.on( 'click', '.item-edit', function() {
 396                                 api.refreshAdvancedAccessibilityOfItem( $( this ) );
 397                         } );
 398
 399                         // Links for moving items
 400                         menu.on( 'click', '.menus-move', function ( e ) {
 401                                 var $this = $( this ),
 402                                         dir = $this.data( 'dir' );
 403
 404                                 if ( 'undefined' !== typeof dir ) {
 405                                         api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), dir );
 406                                 }
 407                                 e.preventDefault();
 408                         });
 409                 },
 410
 411                 /**
 412                  * refreshAdvancedAccessibilityOfItem( [itemToRefresh] )
 413                  *
 414                  * Refreshes advanced accessibility buttons for one menu item.
 415                  * Shows or hides buttons based on the location of the menu item.
 416                  *
 417                  * @param  {object} itemToRefresh The menu item that might need its advanced accessibility buttons refreshed
 418                  */
 419                 refreshAdvancedAccessibilityOfItem : function( itemToRefresh ) {
 420
 421                         // Only refresh accessibility when necessary
 422                         if ( true !== $( itemToRefresh ).data( 'needs_accessibility_refresh' ) ) {
 423                                 return;
 424                         }
 425
 426                         var thisLink, thisLinkText, primaryItems, itemPosition, title,
 427                                 parentItem, parentItemId, parentItemName, subItems,
 428                                 $this = $( itemToRefresh ),
 429                                 menuItem = $this.closest( 'li.menu-item' ).first(),
 430                                 depth = menuItem.menuItemDepth(),
 431                                 isPrimaryMenuItem = ( 0 === depth ),
 432                                 itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
 433                                 position = parseInt( menuItem.index(), 10 ),
 434                                 prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
 435                                 prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
 436                                 prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
 437                                 totalMenuItems = $('#menu-to-edit li').length,
 438                                 hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 439
 440                                 menuItem.find( '.field-move' ).toggle( totalMenuItems > 1 );
 441
 442                         // Where can they move this menu item?
 443                         if ( 0 !== position ) {
 444                                 thisLink = menuItem.find( '.menus-move-up' );
 445                                 thisLink.prop( 'title', menus.moveUp ).css( 'display', 'inline' );
 446                         }
 447
 448                         if ( 0 !== position && isPrimaryMenuItem ) {
 449                                 thisLink = menuItem.find( '.menus-move-top' );
 450                                 thisLink.prop( 'title', menus.moveToTop ).css( 'display', 'inline' );
 451                         }
 452
 453                         if ( position + 1 !== totalMenuItems && 0 !== position ) {
 454                                 thisLink = menuItem.find( '.menus-move-down' );
 455                                 thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
 456                         }
 457
 458                         if ( 0 === position && 0 !== hasSameDepthSibling ) {
 459                                 thisLink = menuItem.find( '.menus-move-down' );
 460                                 thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
 461                         }
 462
 463                         if ( ! isPrimaryMenuItem ) {
 464                                 thisLink = menuItem.find( '.menus-move-left' ),
 465                                 thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
 466                                 thisLink.prop( 'title', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).text( thisLinkText ).css( 'display', 'inline' );
 467                         }
 468
 469                         if ( 0 !== position ) {
 470                                 if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
 471                                         thisLink = menuItem.find( '.menus-move-right' ),
 472                                         thisLinkText = menus.under.replace( '%s', prevItemNameRight );
 473                                         thisLink.prop( 'title', menus.moveUnder.replace( '%s', prevItemNameRight ) ).text( thisLinkText ).css( 'display', 'inline' );
 474                                 }
 475                         }
 476
 477                         if ( isPrimaryMenuItem ) {
 478                                 primaryItems = $( '.menu-item-depth-0' ),
 479                                 itemPosition = primaryItems.index( menuItem ) + 1,
 480                                 totalMenuItems = primaryItems.length,
 481
 482                                 // String together help text for primary menu items
 483                                 title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
 484                         } else {
 485                                 parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
 486                                 parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
 487                                 parentItemName = parentItem.find( '.menu-item-title' ).text(),
 488                                 subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
 489                                 itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 490
 491                                 // String together help text for sub menu items
 492                                 title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
 493                         }
 494
 495                         $this.prop('title', title).text( title );
 496
 497                         // Mark this item's accessibility as refreshed
 498                         $this.data( 'needs_accessibility_refresh', false );
 499                 },
 500
 501                 /**
 502                  * refreshAdvancedAccessibility
 503                  *
 504                  * Hides all advanced accessibility buttons and marks them for refreshing.
 505                  */
 506                 refreshAdvancedAccessibility : function() {
 507
 508                         // Hide all links by default
 509                         $( '.menu-item-settings .field-move a' ).hide();
 510
 511                         // Mark all menu items as unprocessed
 512                         $( '.item-edit' ).data( 'needs_accessibility_refresh', true );
 513
 514                         // All open items have to be refreshed or they will show no links
 515                         $( '.menu-item-edit-active .item-edit' ).each( function() {
 516                                 api.refreshAdvancedAccessibilityOfItem( this );
 517                         } );
 518                 },
 519
 520                 refreshKeyboardAccessibility : function() {
 521                         $( '.item-edit' ).off( 'focus' ).on( 'focus', function(){
 522                                 $(this).off( 'keydown' ).on( 'keydown', function(e){
 523
 524                                         var arrows,
 525                                                 $this = $( this ),
 526                                                 thisItem = $this.parents( 'li.menu-item' ),
 527                                                 thisItemData = thisItem.getItemData();
 528
 529                                         // Bail if it's not an arrow key
 530                                         if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
 531                                                 return;
 532
 533                                         // Avoid multiple keydown events
 534                                         $this.off('keydown');
 535
 536                                         // Bail if there is only one menu item
 537                                         if ( 1 === $('#menu-to-edit li').length )
 538                                                 return;
 539
 540                                         // If RTL, swap left/right arrows
 541                                         arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
 542                                         if ( $('body').hasClass('rtl') )
 543                                                 arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
 544
 545                                         switch ( arrows[e.which] ) {
 546                                         case 'up':
 547                                                 api.moveMenuItem( $this, 'up' );
 548                                                 break;
 549                                         case 'down':
 550                                                 api.moveMenuItem( $this, 'down' );
 551                                                 break;
 552                                         case 'left':
 553                                                 api.moveMenuItem( $this, 'left' );
 554                                                 break;
 555                                         case 'right':
 556                                                 api.moveMenuItem( $this, 'right' );
 557                                                 break;
 558                                         }
 559                                         // Put focus back on same menu item
 560                                         $( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
 561                                         return false;
 562                                 });
 563                         });
 564                 },
 565
 566                 initPreviewing : function() {
 567                         // Update the item handle title when the navigation label is changed.
 568                         $( '#menu-to-edit' ).on( 'change input', '.edit-menu-item-title', function(e) {
 569                                 var input = $( e.currentTarget ), title, titleEl;
 570                                 title = input.val();
 571                                 titleEl = input.closest( '.menu-item' ).find( '.menu-item-title' );
 572                                 // Don't update to empty title.
 573                                 if ( title ) {
 574                                         titleEl.text( title ).removeClass( 'no-title' );
 575                                 } else {
 576                                         titleEl.text( navMenuL10n.untitled ).addClass( 'no-title' );
 577                                 }
 578                         } );
 579                 },
 580
 581                 initToggles : function() {
 582                         // init postboxes
 583                         postboxes.add_postbox_toggles('nav-menus');
 584
 585                         // adjust columns functions for menus UI
 586                         columns.useCheckboxesForHidden();
 587                         columns.checked = function(field) {
 588                                 $('.field-' + field).removeClass('hidden-field');
 589                         };
 590                         columns.unchecked = function(field) {
 591                                 $('.field-' + field).addClass('hidden-field');
 592                         };
 593                         // hide fields
 594                         api.menuList.hideAdvancedMenuItemFields();
 595
 596                         $('.hide-postbox-tog').click(function () {
 597                                 var hidden = $( '.accordion-container li.accordion-section' ).filter(':hidden').map(function() { return this.id; }).get().join(',');
 598                                 $.post(ajaxurl, {
 599                                         action: 'closed-postboxes',
 600                                         hidden: hidden,
 601                                         closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
 602                                         page: 'nav-menus'
 603                                 });
 604                         });
 605                 },
 606
 607                 initSortables : function() {
 608                         var currentDepth = 0, originalDepth, minDepth, maxDepth,
 609                                 prev, next, prevBottom, nextThreshold, helperHeight, transport,
 610                                 menuEdge = api.menuList.offset().left,
 611                                 body = $('body'), maxChildDepth,
 612                                 menuMaxDepth = initialMenuMaxDepth();
 613
 614                         if( 0 !== $( '#menu-to-edit li' ).length )
 615                                 $( '.drag-instructions' ).show();
 616
 617                         // Use the right edge if RTL.
 618                         menuEdge += api.isRTL ? api.menuList.width() : 0;
 619
 620                         api.menuList.sortable({
 621                                 handle: '.menu-item-handle',
 622                                 placeholder: 'sortable-placeholder',
 623                                 start: function(e, ui) {
 624                                         var height, width, parent, children, tempHolder;
 625
 626                                         // handle placement for rtl orientation
 627                                         if ( api.isRTL )
 628                                                 ui.item[0].style.right = 'auto';
 629
 630                                         transport = ui.item.children('.menu-item-transport');
 631
 632                                         // Set depths. currentDepth must be set before children are located.
 633                                         originalDepth = ui.item.menuItemDepth();
 634                                         updateCurrentDepth(ui, originalDepth);
 635
 636                                         // Attach child elements to parent
 637                                         // Skip the placeholder
 638                                         parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
 639                                         children = parent.childMenuItems();
 640                                         transport.append( children );
 641
 642                                         // Update the height of the placeholder to match the moving item.
 643                                         height = transport.outerHeight();
 644                                         // If there are children, account for distance between top of children and parent
 645                                         height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
 646                                         height += ui.helper.outerHeight();
 647                                         helperHeight = height;
 648                                         height -= 2; // Subtract 2 for borders
 649                                         ui.placeholder.height(height);
 650
 651                                         // Update the width of the placeholder to match the moving item.
 652                                         maxChildDepth = originalDepth;
 653                                         children.each(function(){
 654                                                 var depth = $(this).menuItemDepth();
 655                                                 maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
 656                                         });
 657                                         width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width
 658                                         width += api.depthToPx(maxChildDepth - originalDepth); // Account for children
 659                                         width -= 2; // Subtract 2 for borders
 660                                         ui.placeholder.width(width);
 661
 662                                         // Update the list of menu items.
 663                                         tempHolder = ui.placeholder.next();
 664                                         tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder
 665                                         ui.placeholder.detach(); // detach or jQuery UI will think the placeholder is a menu item
 666                                         $(this).sortable( 'refresh' ); // The children aren't sortable. We should let jQ UI know.
 667                                         ui.item.after( ui.placeholder ); // reattach the placeholder.
 668                                         tempHolder.css('margin-top', 0); // reset the margin
 669
 670                                         // Now that the element is complete, we can update...
 671                                         updateSharedVars(ui);
 672                                 },
 673                                 stop: function(e, ui) {
 674                                         var children, subMenuTitle,
 675                                                 depthChange = currentDepth - originalDepth;
 676
 677                                         // Return child elements to the list
 678                                         children = transport.children().insertAfter(ui.item);
 679
 680                                         // Add "sub menu" description
 681                                         subMenuTitle = ui.item.find( '.item-title .is-submenu' );
 682                                         if ( 0 < currentDepth )
 683                                                 subMenuTitle.show();
 684                                         else
 685                                                 subMenuTitle.hide();
 686
 687                                         // Update depth classes
 688                                         if ( 0 !== depthChange ) {
 689                                                 ui.item.updateDepthClass( currentDepth );
 690                                                 children.shiftDepthClass( depthChange );
 691                                                 updateMenuMaxDepth( depthChange );
 692                                         }
 693                                         // Register a change
 694                                         api.registerChange();
 695                                         // Update the item data.
 696                                         ui.item.updateParentMenuItemDBId();
 697
 698                                         // address sortable's incorrectly-calculated top in opera
 699                                         ui.item[0].style.top = 0;
 700
 701                                         // handle drop placement for rtl orientation
 702                                         if ( api.isRTL ) {
 703                                                 ui.item[0].style.left = 'auto';
 704                                                 ui.item[0].style.right = 0;
 705                                         }
 706
 707                                         api.refreshKeyboardAccessibility();
 708                                         api.refreshAdvancedAccessibility();
 709                                 },
 710                                 change: function(e, ui) {
 711                                         // Make sure the placeholder is inside the menu.
 712                                         // Otherwise fix it, or we're in trouble.
 713                                         if( ! ui.placeholder.parent().hasClass('menu') )
 714                                                 (prev.length) ? prev.after( ui.placeholder ) : api.menuList.prepend( ui.placeholder );
 715
 716                                         updateSharedVars(ui);
 717                                 },
 718                                 sort: function(e, ui) {
 719                                         var offset = ui.helper.offset(),
 720                                                 edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
 721                                                 depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
 722                                         // Check and correct if depth is not within range.
 723                                         // Also, if the dragged element is dragged upwards over
 724                                         // an item, shift the placeholder to a child position.
 725                                         if ( depth > maxDepth || offset.top < prevBottom ) depth = maxDepth;
 726                                         else if ( depth < minDepth ) depth = minDepth;
 727
 728                                         if( depth != currentDepth )
 729                                                 updateCurrentDepth(ui, depth);
 730
 731                                         // If we overlap the next element, manually shift downwards
 732                                         if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
 733                                                 next.after( ui.placeholder );
 734                                                 updateSharedVars( ui );
 735                                                 $( this ).sortable( 'refreshPositions' );
 736                                         }
 737                                 }
 738                         });
 739
 740                         function updateSharedVars(ui) {
 741                                 var depth;
 742
 743                                 prev = ui.placeholder.prev();
 744                                 next = ui.placeholder.next();
 745
 746                                 // Make sure we don't select the moving item.
 747                                 if( prev[0] == ui.item[0] ) prev = prev.prev();
 748                                 if( next[0] == ui.item[0] ) next = next.next();
 749
 750                                 prevBottom = (prev.length) ? prev.offset().top + prev.height() : 0;
 751                                 nextThreshold = (next.length) ? next.offset().top + next.height() / 3 : 0;
 752                                 minDepth = (next.length) ? next.menuItemDepth() : 0;
 753
 754                                 if( prev.length )
 755                                         maxDepth = ( (depth = prev.menuItemDepth() + 1) > api.options.globalMaxDepth ) ? api.options.globalMaxDepth : depth;
 756                                 else
 757                                         maxDepth = 0;
 758                         }
 759
 760                         function updateCurrentDepth(ui, depth) {
 761                                 ui.placeholder.updateDepthClass( depth, currentDepth );
 762                                 currentDepth = depth;
 763                         }
 764
 765                         function initialMenuMaxDepth() {
 766                                 if( ! body[0].className ) return 0;
 767                                 var match = body[0].className.match(/menu-max-depth-(\d+)/);
 768                                 return match && match[1] ? parseInt( match[1], 10 ) : 0;
 769                         }
 770
 771                         function updateMenuMaxDepth( depthChange ) {
 772                                 var depth, newDepth = menuMaxDepth;
 773                                 if ( depthChange === 0 ) {
 774                                         return;
 775                                 } else if ( depthChange > 0 ) {
 776                                         depth = maxChildDepth + depthChange;
 777                                         if( depth > menuMaxDepth )
 778                                                 newDepth = depth;
 779                                 } else if ( depthChange < 0 && maxChildDepth == menuMaxDepth ) {
 780                                         while( ! $('.menu-item-depth-' + newDepth, api.menuList).length && newDepth > 0 )
 781                                                 newDepth--;
 782                                 }
 783                                 // Update the depth class.
 784                                 body.removeClass( 'menu-max-depth-' + menuMaxDepth ).addClass( 'menu-max-depth-' + newDepth );
 785                                 menuMaxDepth = newDepth;
 786                         }
 787                 },
 788
 789                 initManageLocations : function () {
 790                         $('#menu-locations-wrap form').submit(function(){
 791                                 window.onbeforeunload = null;
 792                         });
 793                         $('.menu-location-menus select').on('change', function () {
 794                                 var editLink = $(this).closest('tr').find('.locations-edit-menu-link');
 795                                 if ($(this).find('option:selected').data('orig'))
 796                                         editLink.show();
 797                                 else
 798                                         editLink.hide();
 799                         });
 800                 },
 801
 802                 attachMenuEditListeners : function() {
 803                         var that = this;
 804                         $('#update-nav-menu').bind('click', function(e) {
 805                                 if ( e.target && e.target.className ) {
 806                                         if ( -1 != e.target.className.indexOf('item-edit') ) {
 807                                                 return that.eventOnClickEditLink(e.target);
 808                                         } else if ( -1 != e.target.className.indexOf('menu-save') ) {
 809                                                 return that.eventOnClickMenuSave(e.target);
 810                                         } else if ( -1 != e.target.className.indexOf('menu-delete') ) {
 811                                                 return that.eventOnClickMenuDelete(e.target);
 812                                         } else if ( -1 != e.target.className.indexOf('item-delete') ) {
 813                                                 return that.eventOnClickMenuItemDelete(e.target);
 814                                         } else if ( -1 != e.target.className.indexOf('item-cancel') ) {
 815                                                 return that.eventOnClickCancelLink(e.target);
 816                                         }
 817                                 }
 818                         });
 819                         $('#add-custom-links input[type="text"]').keypress(function(e){
 820                                 if ( e.keyCode === 13 ) {
 821                                         e.preventDefault();
 822                                         $( '#submit-customlinkdiv' ).click();
 823                                 }
 824                         });
 825                 },
 826
 827                 /**
 828                  * An interface for managing default values for input elements
 829                  * that is both JS and accessibility-friendly.
 830                  *
 831                  * Input elements that add the class 'input-with-default-title'
 832                  * will have their values set to the provided HTML title when empty.
 833                  */
 834                 setupInputWithDefaultTitle : function() {
 835                         var name = 'input-with-default-title';
 836
 837                         $('.' + name).each( function(){
 838                                 var $t = $(this), title = $t.attr('title'), val = $t.val();
 839                                 $t.data( name, title );
 840
 841                                 if( '' === val ) $t.val( title );
 842                                 else if ( title == val ) return;
 843                                 else $t.removeClass( name );
 844                         }).focus( function(){
 845                                 var $t = $(this);
 846                                 if( $t.val() == $t.data(name) )
 847                                         $t.val('').removeClass( name );
 848                         }).blur( function(){
 849                                 var $t = $(this);
 850                                 if( '' === $t.val() )
 851                                         $t.addClass( name ).val( $t.data(name) );
 852                         });
 853
 854                         $( '.blank-slate .input-with-default-title' ).focus();
 855                 },
 856
 857                 attachThemeLocationsListeners : function() {
 858                         var loc = $('#nav-menu-theme-locations'), params = {};
 859                         params.action = 'menu-locations-save';
 860                         params['menu-settings-column-nonce'] = $('#menu-settings-column-nonce').val();
 861                         loc.find('input[type="submit"]').click(function() {
 862                                 loc.find('select').each(function() {
 863                                         params[this.name] = $(this).val();
 864                                 });
 865                                 loc.find( '.spinner' ).addClass( 'is-active' );
 866                                 $.post( ajaxurl, params, function() {
 867                                         loc.find( '.spinner' ).removeClass( 'is-active' );
 868                                 });
 869                                 return false;
 870                         });
 871                 },
 872
 873                 attachQuickSearchListeners : function() {
 874                         var searchTimer;
 875
 876                         $('.quick-search').keypress(function(e){
 877                                 var t = $(this);
 878
 879                                 if( 13 == e.which ) {
 880                                         api.updateQuickSearchResults( t );
 881                                         return false;
 882                                 }
 883
 884                                 if( searchTimer ) clearTimeout(searchTimer);
 885
 886                                 searchTimer = setTimeout(function(){
 887                                         api.updateQuickSearchResults( t );
 888                                 }, 400);
 889                         }).attr('autocomplete','off');
 890                 },
 891
 892                 updateQuickSearchResults : function(input) {
 893                         var panel, params,
 894                         minSearchLength = 2,
 895                         q = input.val();
 896
 897                         if( q.length < minSearchLength ) return;
 898
 899                         panel = input.parents('.tabs-panel');
 900                         params = {
 901                                 'action': 'menu-quick-search',
 902                                 'response-format': 'markup',
 903                                 'menu': $('#menu').val(),
 904                                 'menu-settings-column-nonce': $('#menu-settings-column-nonce').val(),
 905                                 'q': q,
 906                                 'type': input.attr('name')
 907                         };
 908
 909                         $( '.spinner', panel ).addClass( 'is-active' );
 910
 911                         $.post( ajaxurl, params, function(menuMarkup) {
 912                                 api.processQuickSearchQueryResponse(menuMarkup, params, panel);
 913                         });
 914                 },
 915
 916                 addCustomLink : function( processMethod ) {
 917                         var url = $('#custom-menu-item-url').val(),
 918                                 label = $('#custom-menu-item-name').val();
 919
 920                         processMethod = processMethod || api.addMenuItemToBottom;
 921
 922                         if ( '' === url || 'http://' == url )
 923                                 return false;
 924
 925                         // Show the ajax spinner
 926                         $( '.customlinkdiv .spinner' ).addClass( 'is-active' );
 927                         this.addLinkToMenu( url, label, processMethod, function() {
 928                                 // Remove the ajax spinner
 929                                 $( '.customlinkdiv .spinner' ).removeClass( 'is-active' );
 930                                 // Set custom link form back to defaults
 931                                 $('#custom-menu-item-name').val('').blur();
 932                                 $('#custom-menu-item-url').val('http://');
 933                         });
 934                 },
 935
 936                 addLinkToMenu : function(url, label, processMethod, callback) {
 937                         processMethod = processMethod || api.addMenuItemToBottom;
 938                         callback = callback || function(){};
 939
 940                         api.addItemToMenu({
 941                                 '-1': {
 942                                         'menu-item-type': 'custom',
 943                                         'menu-item-url': url,
 944                                         'menu-item-title': label
 945                                 }
 946                         }, processMethod, callback);
 947                 },
 948
 949                 addItemToMenu : function(menuItem, processMethod, callback) {
 950                         var menu = $('#menu').val(),
 951                                 nonce = $('#menu-settings-column-nonce').val(),
 952                                 params;
 953
 954                         processMethod = processMethod || function(){};
 955                         callback = callback || function(){};
 956
 957                         params = {
 958                                 'action': 'add-menu-item',
 959                                 'menu': menu,
 960                                 'menu-settings-column-nonce': nonce,
 961                                 'menu-item': menuItem
 962                         };
 963
 964                         $.post( ajaxurl, params, function(menuMarkup) {
 965                                 var ins = $('#menu-instructions');
 966
 967                                 menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces
 968                                 processMethod(menuMarkup, params);
 969
 970                                 // Make it stand out a bit more visually, by adding a fadeIn
 971                                 $( 'li.pending' ).hide().fadeIn('slow');
 972                                 $( '.drag-instructions' ).show();
 973                                 if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
 974                                         ins.addClass( 'menu-instructions-inactive' );
 975
 976                                 callback();
 977                         });
 978                 },
 979
 980                 /**
 981                  * Process the add menu item request response into menu list item.
 982                  *
 983                  * @param string menuMarkup The text server response of menu item markup.
 984                  * @param object req The request arguments.
 985                  */
 986                 addMenuItemToBottom : function( menuMarkup ) {
 987                         $(menuMarkup).hideAdvancedMenuItemFields().appendTo( api.targetList );
 988                         api.refreshKeyboardAccessibility();
 989                         api.refreshAdvancedAccessibility();
 990                 },
 991
 992                 addMenuItemToTop : function( menuMarkup ) {
 993                         $(menuMarkup).hideAdvancedMenuItemFields().prependTo( api.targetList );
 994                         api.refreshKeyboardAccessibility();
 995                         api.refreshAdvancedAccessibility();
 996                 },
 997
 998                 attachUnsavedChangesListener : function() {
 999                         $('#menu-management input, #menu-management select, #menu-management, #menu-management textarea, .menu-location-menus select').change(function(){
1000                                 api.registerChange();
1001                         });
1002
1003                         if ( 0 !== $('#menu-to-edit').length || 0 !== $('.menu-location-menus select').length ) {
1004                                 window.onbeforeunload = function(){
1005                                         if ( api.menusChanged )
1006                                                 return navMenuL10n.saveAlert;
1007                                 };
1008                         } else {
1009                                 // Make the post boxes read-only, as they can't be used yet
1010                                 $( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
1011                         }
1012                 },
1013
1014                 registerChange : function() {
1015                         api.menusChanged = true;
1016                 },
1017
1018                 attachTabsPanelListeners : function() {
1019                         $('#menu-settings-column').bind('click', function(e) {
1020                                 var selectAreaMatch, panelId, wrapper, items,
1021                                         target = $(e.target);
1022
1023                                 if ( target.hasClass('nav-tab-link') ) {
1024
1025                                         panelId = target.data( 'type' );
1026
1027                                         wrapper = target.parents('.accordion-section-content').first();
1028
1029                                         // upon changing tabs, we want to uncheck all checkboxes
1030                                         $('input', wrapper).removeAttr('checked');
1031
1032                                         $('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
1033                                         $('#' + panelId, wrapper).removeClass('tabs-panel-inactive').addClass('tabs-panel-active');
1034
1035                                         $('.tabs', wrapper).removeClass('tabs');
1036                                         target.parent().addClass('tabs');
1037
1038                                         // select the search bar
1039                                         $('.quick-search', wrapper).focus();
1040
1041                                         e.preventDefault();
1042                                 } else if ( target.hasClass('select-all') ) {
1043                                         selectAreaMatch = /#(.*)$/.exec(e.target.href);
1044                                         if ( selectAreaMatch && selectAreaMatch[1] ) {
1045                                                 items = $('#' + selectAreaMatch[1] + ' .tabs-panel-active .menu-item-title input');
1046                                                 if( items.length === items.filter(':checked').length )
1047                                                         items.removeAttr('checked');
1048                                                 else
1049                                                         items.prop('checked', true);
1050                                                 return false;
1051                                         }
1052                                 } else if ( target.hasClass('submit-add-to-menu') ) {
1053                                         api.registerChange();
1054
1055                                         if ( e.target.id && 'submit-customlinkdiv' == e.target.id )
1056                                                 api.addCustomLink( api.addMenuItemToBottom );
1057                                         else if ( e.target.id && -1 != e.target.id.indexOf('submit-') )
1058                                                 $('#' + e.target.id.replace(/submit-/, '')).addSelectedToMenu( api.addMenuItemToBottom );
1059                                         return false;
1060                                 } else if ( target.hasClass('page-numbers') ) {
1061                                         $.post( ajaxurl, e.target.href.replace(/.*\?/, '').replace(/action=([^&]*)/, '') + '&action=menu-get-metabox',
1062                                                 function( resp ) {
1063                                                         if ( -1 == resp.indexOf('replace-id') )
1064                                                                 return;
1065
1066                                                         var metaBoxData = $.parseJSON(resp),
1067                                                         toReplace = document.getElementById(metaBoxData['replace-id']),
1068                                                         placeholder = document.createElement('div'),
1069                                                         wrap = document.createElement('div');
1070
1071                                                         if ( ! metaBoxData.markup || ! toReplace )
1072                                                                 return;
1073
1074                                                         wrap.innerHTML = metaBoxData.markup ? metaBoxData.markup : '';
1075
1076                                                         toReplace.parentNode.insertBefore( placeholder, toReplace );
1077                                                         placeholder.parentNode.removeChild( toReplace );
1078
1079                                                         placeholder.parentNode.insertBefore( wrap, placeholder );
1080
1081                                                         placeholder.parentNode.removeChild( placeholder );
1082
1083                                                 }
1084                                         );
1085
1086                                         return false;
1087                                 }
1088                         });
1089                 },
1090
1091                 eventOnClickEditLink : function(clickedEl) {
1092                         var settings, item,
1093                         matchedSection = /#(.*)$/.exec(clickedEl.href);
1094                         if ( matchedSection && matchedSection[1] ) {
1095                                 settings = $('#'+matchedSection[1]);
1096                                 item = settings.parent();
1097                                 if( 0 !== item.length ) {
1098                                         if( item.hasClass('menu-item-edit-inactive') ) {
1099                                                 if( ! settings.data('menu-item-data') ) {
1100                                                         settings.data( 'menu-item-data', settings.getItemData() );
1101                                                 }
1102                                                 settings.slideDown('fast');
1103                                                 item.removeClass('menu-item-edit-inactive')
1104                                                         .addClass('menu-item-edit-active');
1105                                         } else {
1106                                                 settings.slideUp('fast');
1107                                                 item.removeClass('menu-item-edit-active')
1108                                                         .addClass('menu-item-edit-inactive');
1109                                         }
1110                                         return false;
1111                                 }
1112                         }
1113                 },
1114
1115                 eventOnClickCancelLink : function(clickedEl) {
1116                         var settings = $( clickedEl ).closest( '.menu-item-settings' ),
1117                                 thisMenuItem = $( clickedEl ).closest( '.menu-item' );
1118                         thisMenuItem.removeClass('menu-item-edit-active').addClass('menu-item-edit-inactive');
1119                         settings.setItemData( settings.data('menu-item-data') ).hide();
1120                         return false;
1121                 },
1122
1123                 eventOnClickMenuSave : function() {
1124                         var locs = '',
1125                         menuName = $('#menu-name'),
1126                         menuNameVal = menuName.val();
1127                         // Cancel and warn if invalid menu name
1128                         if( !menuNameVal || menuNameVal == menuName.attr('title') || !menuNameVal.replace(/\s+/, '') ) {
1129                                 menuName.parent().addClass('form-invalid');
1130                                 return false;
1131                         }
1132                         // Copy menu theme locations
1133                         $('#nav-menu-theme-locations select').each(function() {
1134                                 locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
1135                         });
1136                         $('#update-nav-menu').append( locs );
1137                         // Update menu item position data
1138                         api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
1139                         window.onbeforeunload = null;
1140
1141                         return true;
1142                 },
1143
1144                 eventOnClickMenuDelete : function() {
1145                         // Delete warning AYS
1146                         if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
1147                                 window.onbeforeunload = null;
1148                                 return true;
1149                         }
1150                         return false;
1151                 },
1152
1153                 eventOnClickMenuItemDelete : function(clickedEl) {
1154                         var itemID = parseInt(clickedEl.id.replace('delete-', ''), 10);
1155                         api.removeMenuItem( $('#menu-item-' + itemID) );
1156                         api.registerChange();
1157                         return false;
1158                 },
1159
1160                 /**
1161                  * Process the quick search response into a search result
1162                  *
1163                  * @param string resp The server response to the query.
1164                  * @param object req The request arguments.
1165                  * @param jQuery panel The tabs panel we're searching in.
1166                  */
1167                 processQuickSearchQueryResponse : function(resp, req, panel) {
1168                         var matched, newID,
1169                         takenIDs = {},
1170                         form = document.getElementById('nav-menu-meta'),
1171                         pattern = /menu-item[(\[^]\]*/,
1172                         $items = $('<div>').html(resp).find('li'),
1173                         $item;
1174
1175                         if( ! $items.length ) {
1176                                 $('.categorychecklist', panel).html( '<li><p>' + navMenuL10n.noResultsFound + '</p></li>' );
1177                                 $( '.spinner', panel ).removeClass( 'is-active' );
1178                                 return;
1179                         }
1180
1181                         $items.each(function(){
1182                                 $item = $(this);
1183
1184                                 // make a unique DB ID number
1185                                 matched = pattern.exec($item.html());
1186
1187                                 if ( matched && matched[1] ) {
1188                                         newID = matched[1];
1189                                         while( form.elements['menu-item[' + newID + '][menu-item-type]'] || takenIDs[ newID ] ) {
1190                                                 newID--;
1191                                         }
1192
1193                                         takenIDs[newID] = true;
1194                                         if ( newID != matched[1] ) {
1195                                                 $item.html( $item.html().replace(new RegExp(
1196                                                         'menu-item\\[' + matched[1] + '\\]', 'g'),
1197                                                         'menu-item[' + newID + ']'
1198                                                 ) );
1199                                         }
1200                                 }
1201                         });
1202
1203                         $('.categorychecklist', panel).html( $items );
1204                         $( '.spinner', panel ).removeClass( 'is-active' );
1205                 },
1206
1207                 removeMenuItem : function(el) {
1208                         var children = el.childMenuItems();
1209
1210                         el.addClass('deleting').animate({
1211                                         opacity : 0,
1212                                         height: 0
1213                                 }, 350, function() {
1214                                         var ins = $('#menu-instructions');
1215                                         el.remove();
1216                                         children.shiftDepthClass( -1 ).updateParentMenuItemDBId();
1217                                         if ( 0 === $( '#menu-to-edit li' ).length ) {
1218                                                 $( '.drag-instructions' ).hide();
1219                                                 ins.removeClass( 'menu-instructions-inactive' );
1220                                         }
1221                                         api.refreshAdvancedAccessibility();
1222                                 });
1223                 },
1224
1225                 depthToPx : function(depth) {
1226                         return depth * api.options.menuItemDepthPerLevel;
1227                 },
1228
1229                 pxToDepth : function(px) {
1230                         return Math.floor(px / api.options.menuItemDepthPerLevel);
1231                 }
1232
1233         };
1234
1235         $(document).ready(function(){ wpNavMenu.init(); });
1236
1237 })(jQuery);