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/wp-admin/js/ -> nav-menu.js (source)

   1  /**
   2   * WordPress Administration Navigation Menu
   3   * Interface JS functions
   4   *
   5   * @version 2.0.0
   6   *
   7   * @package WordPress
   8   * @subpackage Administration
   9   * @output wp-admin/js/nav-menu.js
  10   */
  11  
  12  /* global menus, postboxes, columns, isRtl, navMenuL10n, ajaxurl, wpNavMenu */
  13  
  14  (function($) {
  15  
  16      var api;
  17  
  18      /**
  19       * Contains all the functions to handle WordPress navigation menus administration.
  20       *
  21       * @namespace wpNavMenu
  22       */
  23      api = window.wpNavMenu = {
  24  
  25          options : {
  26              menuItemDepthPerLevel : 30, // Do not use directly. Use depthToPx and pxToDepth instead.
  27              globalMaxDepth:  11,
  28              sortableItems:   '> *',
  29              targetTolerance: 0
  30          },
  31  
  32          menuList : undefined,    // Set in init.
  33          targetList : undefined, // Set in init.
  34          menusChanged : false,
  35          isRTL: !! ( 'undefined' != typeof isRtl && isRtl ),
  36          negateIfRTL: ( 'undefined' != typeof isRtl && isRtl ) ? -1 : 1,
  37          lastSearch: '',
  38  
  39          // Functions that run on init.
  40          init : function() {
  41              api.menuList = $('#menu-to-edit');
  42              api.targetList = api.menuList;
  43  
  44              this.jQueryExtensions();
  45  
  46              this.attachMenuEditListeners();
  47  
  48              this.attachQuickSearchListeners();
  49              this.attachThemeLocationsListeners();
  50              this.attachMenuSaveSubmitListeners();
  51  
  52              this.attachTabsPanelListeners();
  53  
  54              this.attachUnsavedChangesListener();
  55  
  56              if ( api.menuList.length )
  57                  this.initSortables();
  58  
  59              if ( menus.oneThemeLocationNoMenus )
  60                  $( '#posttype-page' ).addSelectedToMenu( api.addMenuItemToBottom );
  61  
  62              this.initManageLocations();
  63  
  64              this.initAccessibility();
  65  
  66              this.initToggles();
  67  
  68              this.initPreviewing();
  69          },
  70  
  71          jQueryExtensions : function() {
  72              // jQuery extensions.
  73              $.fn.extend({
  74                  menuItemDepth : function() {
  75                      var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
  76                      return api.pxToDepth( margin && -1 != margin.indexOf('px') ? margin.slice(0, -2) : 0 );
  77                  },
  78                  updateDepthClass : function(current, prev) {
  79                      return this.each(function(){
  80                          var t = $(this);
  81                          prev = prev || t.menuItemDepth();
  82                          $(this).removeClass('menu-item-depth-'+ prev )
  83                              .addClass('menu-item-depth-'+ current );
  84                      });
  85                  },
  86                  shiftDepthClass : function(change) {
  87                      return this.each(function(){
  88                          var t = $(this),
  89                              depth = t.menuItemDepth(),
  90                              newDepth = depth + change;
  91  
  92                          t.removeClass( 'menu-item-depth-'+ depth )
  93                              .addClass( 'menu-item-depth-'+ ( newDepth ) );
  94  
  95                          if ( 0 === newDepth ) {
  96                              t.find( '.is-submenu' ).hide();
  97                          }
  98                      });
  99                  },
 100                  childMenuItems : function() {
 101                      var result = $();
 102                      this.each(function(){
 103                          var t = $(this), depth = t.menuItemDepth(), next = t.next( '.menu-item' );
 104                          while( next.length && next.menuItemDepth() > depth ) {
 105                              result = result.add( next );
 106                              next = next.next( '.menu-item' );
 107                          }
 108                      });
 109                      return result;
 110                  },
 111                  shiftHorizontally : function( dir ) {
 112                      return this.each(function(){
 113                          var t = $(this),
 114                              depth = t.menuItemDepth(),
 115                              newDepth = depth + dir;
 116  
 117                          // Change .menu-item-depth-n class.
 118                          t.moveHorizontally( newDepth, depth );
 119                      });
 120                  },
 121                  moveHorizontally : function( newDepth, depth ) {
 122                      return this.each(function(){
 123                          var t = $(this),
 124                              children = t.childMenuItems(),
 125                              diff = newDepth - depth,
 126                              subItemText = t.find('.is-submenu');
 127  
 128                          // Change .menu-item-depth-n class.
 129                          t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
 130  
 131                          // If it has children, move those too.
 132                          if ( children ) {
 133                              children.each(function() {
 134                                  var t = $(this),
 135                                      thisDepth = t.menuItemDepth(),
 136                                      newDepth = thisDepth + diff;
 137                                  t.updateDepthClass(newDepth, thisDepth).updateParentMenuItemDBId();
 138                              });
 139                          }
 140  
 141                          // Show "Sub item" helper text.
 142                          if (0 === newDepth)
 143                              subItemText.hide();
 144                          else
 145                              subItemText.show();
 146                      });
 147                  },
 148                  updateParentMenuItemDBId : function() {
 149                      return this.each(function(){
 150                          var item = $(this),
 151                              input = item.find( '.menu-item-data-parent-id' ),
 152                              depth = parseInt( item.menuItemDepth(), 10 ),
 153                              parentDepth = depth - 1,
 154                              parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
 155  
 156                          if ( 0 === depth ) { // Item is on the top level, has no parent.
 157                              input.val(0);
 158                          } else { // Find the parent item, and retrieve its object id.
 159                              input.val( parent.find( '.menu-item-data-db-id' ).val() );
 160                          }
 161                      });
 162                  },
 163                  hideAdvancedMenuItemFields : function() {
 164                      return this.each(function(){
 165                          var that = $(this);
 166                          $('.hide-column-tog').not(':checked').each(function(){
 167                              that.find('.field-' + $(this).val() ).addClass('hidden-field');
 168                          });
 169                      });
 170                  },
 171                  /**
 172                   * Adds selected menu items to the menu.
 173                   *
 174                   * @ignore
 175                   *
 176                   * @param jQuery metabox The metabox jQuery object.
 177                   */
 178                  addSelectedToMenu : function(processMethod) {
 179                      if ( 0 === $('#menu-to-edit').length ) {
 180                          return false;
 181                      }
 182  
 183                      return this.each(function() {
 184                          var t = $(this), menuItems = {},
 185                              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' ),
 186                              re = /menu-item\[([^\]]*)/;
 187  
 188                          processMethod = processMethod || api.addMenuItemToBottom;
 189  
 190                          // If no items are checked, bail.
 191                          if ( !checkboxes.length )
 192                              return false;
 193  
 194                          // Show the Ajax spinner.
 195                          t.find( '.button-controls .spinner' ).addClass( 'is-active' );
 196  
 197                          // Retrieve menu item data.
 198                          $(checkboxes).each(function(){
 199                              var t = $(this),
 200                                  listItemDBIDMatch = re.exec( t.attr('name') ),
 201                                  listItemDBID = 'undefined' == typeof listItemDBIDMatch[1] ? 0 : parseInt(listItemDBIDMatch[1], 10);
 202  
 203                              if ( this.className && -1 != this.className.indexOf('add-to-top') )
 204                                  processMethod = api.addMenuItemToTop;
 205                              menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
 206                          });
 207  
 208                          // Add the items.
 209                          api.addItemToMenu(menuItems, processMethod, function(){
 210                              // Deselect the items and hide the Ajax spinner.
 211                              checkboxes.prop( 'checked', false );
 212                              t.find( '.button-controls .select-all' ).prop( 'checked', false );
 213                              t.find( '.button-controls .spinner' ).removeClass( 'is-active' );
 214                          });
 215                      });
 216                  },
 217                  getItemData : function( itemType, id ) {
 218                      itemType = itemType || 'menu-item';
 219  
 220                      var itemData = {}, i,
 221                      fields = [
 222                          'menu-item-db-id',
 223                          'menu-item-object-id',
 224                          'menu-item-object',
 225                          'menu-item-parent-id',
 226                          'menu-item-position',
 227                          'menu-item-type',
 228                          'menu-item-title',
 229                          'menu-item-url',
 230                          'menu-item-description',
 231                          'menu-item-attr-title',
 232                          'menu-item-target',
 233                          'menu-item-classes',
 234                          'menu-item-xfn'
 235                      ];
 236  
 237                      if( !id && itemType == 'menu-item' ) {
 238                          id = this.find('.menu-item-data-db-id').val();
 239                      }
 240  
 241                      if( !id ) return itemData;
 242  
 243                      this.find('input').each(function() {
 244                          var field;
 245                          i = fields.length;
 246                          while ( i-- ) {
 247                              if( itemType == 'menu-item' )
 248                                  field = fields[i] + '[' + id + ']';
 249                              else if( itemType == 'add-menu-item' )
 250                                  field = 'menu-item[' + id + '][' + fields[i] + ']';
 251  
 252                              if (
 253                                  this.name &&
 254                                  field == this.name
 255                              ) {
 256                                  itemData[fields[i]] = this.value;
 257                              }
 258                          }
 259                      });
 260  
 261                      return itemData;
 262                  },
 263                  setItemData : function( itemData, itemType, id ) { // Can take a type, such as 'menu-item', or an id.
 264                      itemType = itemType || 'menu-item';
 265  
 266                      if( !id && itemType == 'menu-item' ) {
 267                          id = $('.menu-item-data-db-id', this).val();
 268                      }
 269  
 270                      if( !id ) return this;
 271  
 272                      this.find('input').each(function() {
 273                          var t = $(this), field;
 274                          $.each( itemData, function( attr, val ) {
 275                              if( itemType == 'menu-item' )
 276                                  field = attr + '[' + id + ']';
 277                              else if( itemType == 'add-menu-item' )
 278                                  field = 'menu-item[' + id + '][' + attr + ']';
 279  
 280                              if ( field == t.attr('name') ) {
 281                                  t.val( val );
 282                              }
 283                          });
 284                      });
 285                      return this;
 286                  }
 287              });
 288          },
 289  
 290          countMenuItems : function( depth ) {
 291              return $( '.menu-item-depth-' + depth ).length;
 292          },
 293  
 294          moveMenuItem : function( $this, dir ) {
 295  
 296              var items, newItemPosition, newDepth,
 297                  menuItems = $( '#menu-to-edit li' ),
 298                  menuItemsCount = menuItems.length,
 299                  thisItem = $this.parents( 'li.menu-item' ),
 300                  thisItemChildren = thisItem.childMenuItems(),
 301                  thisItemData = thisItem.getItemData(),
 302                  thisItemDepth = parseInt( thisItem.menuItemDepth(), 10 ),
 303                  thisItemPosition = parseInt( thisItem.index(), 10 ),
 304                  nextItem = thisItem.next(),
 305                  nextItemChildren = nextItem.childMenuItems(),
 306                  nextItemDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1,
 307                  prevItem = thisItem.prev(),
 308                  prevItemDepth = parseInt( prevItem.menuItemDepth(), 10 ),
 309                  prevItemId = prevItem.getItemData()['menu-item-db-id'];
 310  
 311              switch ( dir ) {
 312              case 'up':
 313                  newItemPosition = thisItemPosition - 1;
 314  
 315                  // Already at top.
 316                  if ( 0 === thisItemPosition )
 317                      break;
 318  
 319                  // If a sub item is moved to top, shift it to 0 depth.
 320                  if ( 0 === newItemPosition && 0 !== thisItemDepth )
 321                      thisItem.moveHorizontally( 0, thisItemDepth );
 322  
 323                  // If prev item is sub item, shift to match depth.
 324                  if ( 0 !== prevItemDepth )
 325                      thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
 326  
 327                  // Does this item have sub items?
 328                  if ( thisItemChildren ) {
 329                      items = thisItem.add( thisItemChildren );
 330                      // Move the entire block.
 331                      items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 332                  } else {
 333                      thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 334                  }
 335                  break;
 336              case 'down':
 337                  // Does this item have sub items?
 338                  if ( thisItemChildren ) {
 339                      items = thisItem.add( thisItemChildren ),
 340                          nextItem = menuItems.eq( items.length + thisItemPosition ),
 341                          nextItemChildren = 0 !== nextItem.childMenuItems().length;
 342  
 343                      if ( nextItemChildren ) {
 344                          newDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1;
 345                          thisItem.moveHorizontally( newDepth, thisItemDepth );
 346                      }
 347  
 348                      // Have we reached the bottom?
 349                      if ( menuItemsCount === thisItemPosition + items.length )
 350                          break;
 351  
 352                      items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
 353                  } else {
 354                      // If next item has sub items, shift depth.
 355                      if ( 0 !== nextItemChildren.length )
 356                          thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
 357  
 358                      // Have we reached the bottom?
 359                      if ( menuItemsCount === thisItemPosition + 1 )
 360                          break;
 361                      thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
 362                  }
 363                  break;
 364              case 'top':
 365                  // Already at top.
 366                  if ( 0 === thisItemPosition )
 367                      break;
 368                  // Does this item have sub items?
 369                  if ( thisItemChildren ) {
 370                      items = thisItem.add( thisItemChildren );
 371                      // Move the entire block.
 372                      items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 373                  } else {
 374                      thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 375                  }
 376                  break;
 377              case 'left':
 378                  // As far left as possible.
 379                  if ( 0 === thisItemDepth )
 380                      break;
 381                  thisItem.shiftHorizontally( -1 );
 382                  break;
 383              case 'right':
 384                  // Can't be sub item at top.
 385                  if ( 0 === thisItemPosition )
 386                      break;
 387                  // Already sub item of prevItem.
 388                  if ( thisItemData['menu-item-parent-id'] === prevItemId )
 389                      break;
 390                  thisItem.shiftHorizontally( 1 );
 391                  break;
 392              }
 393              $this.focus();
 394              api.registerChange();
 395              api.refreshKeyboardAccessibility();
 396              api.refreshAdvancedAccessibility();
 397          },
 398  
 399          initAccessibility : function() {
 400              var menu = $( '#menu-to-edit' );
 401  
 402              api.refreshKeyboardAccessibility();
 403              api.refreshAdvancedAccessibility();
 404  
 405              // Refresh the accessibility when the user comes close to the item in any way.
 406              menu.on( 'mouseenter.refreshAccessibility focus.refreshAccessibility touchstart.refreshAccessibility' , '.menu-item' , function(){
 407                  api.refreshAdvancedAccessibilityOfItem( $( this ).find( 'a.item-edit' ) );
 408              } );
 409  
 410              // We have to update on click as well because we might hover first, change the item, and then click.
 411              menu.on( 'click', 'a.item-edit', function() {
 412                  api.refreshAdvancedAccessibilityOfItem( $( this ) );
 413              } );
 414  
 415              // Links for moving items.
 416              menu.on( 'click', '.menus-move', function () {
 417                  var $this = $( this ),
 418                      dir = $this.data( 'dir' );
 419  
 420                  if ( 'undefined' !== typeof dir ) {
 421                      api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), dir );
 422                  }
 423              });
 424          },
 425  
 426          /**
 427           * refreshAdvancedAccessibilityOfItem( [itemToRefresh] )
 428           *
 429           * Refreshes advanced accessibility buttons for one menu item.
 430           * Shows or hides buttons based on the location of the menu item.
 431           *
 432           * @param  {object} itemToRefresh The menu item that might need its advanced accessibility buttons refreshed
 433           */
 434          refreshAdvancedAccessibilityOfItem : function( itemToRefresh ) {
 435  
 436              // Only refresh accessibility when necessary.
 437              if ( true !== $( itemToRefresh ).data( 'needs_accessibility_refresh' ) ) {
 438                  return;
 439              }
 440  
 441              var thisLink, thisLinkText, primaryItems, itemPosition, title,
 442                  parentItem, parentItemId, parentItemName, subItems,
 443                  $this = $( itemToRefresh ),
 444                  menuItem = $this.closest( 'li.menu-item' ).first(),
 445                  depth = menuItem.menuItemDepth(),
 446                  isPrimaryMenuItem = ( 0 === depth ),
 447                  itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
 448                  position = parseInt( menuItem.index(), 10 ),
 449                  prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
 450                  prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
 451                  prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
 452                  totalMenuItems = $('#menu-to-edit li').length,
 453                  hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 454  
 455                  menuItem.find( '.field-move' ).toggle( totalMenuItems > 1 );
 456  
 457              // Where can they move this menu item?
 458              if ( 0 !== position ) {
 459                  thisLink = menuItem.find( '.menus-move-up' );
 460                  thisLink.attr( 'aria-label', menus.moveUp ).css( 'display', 'inline' );
 461              }
 462  
 463              if ( 0 !== position && isPrimaryMenuItem ) {
 464                  thisLink = menuItem.find( '.menus-move-top' );
 465                  thisLink.attr( 'aria-label', menus.moveToTop ).css( 'display', 'inline' );
 466              }
 467  
 468              if ( position + 1 !== totalMenuItems && 0 !== position ) {
 469                  thisLink = menuItem.find( '.menus-move-down' );
 470                  thisLink.attr( 'aria-label', menus.moveDown ).css( 'display', 'inline' );
 471              }
 472  
 473              if ( 0 === position && 0 !== hasSameDepthSibling ) {
 474                  thisLink = menuItem.find( '.menus-move-down' );
 475                  thisLink.attr( 'aria-label', menus.moveDown ).css( 'display', 'inline' );
 476              }
 477  
 478              if ( ! isPrimaryMenuItem ) {
 479                  thisLink = menuItem.find( '.menus-move-left' ),
 480                  thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
 481                  thisLink.attr( 'aria-label', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).text( thisLinkText ).css( 'display', 'inline' );
 482              }
 483  
 484              if ( 0 !== position ) {
 485                  if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
 486                      thisLink = menuItem.find( '.menus-move-right' ),
 487                      thisLinkText = menus.under.replace( '%s', prevItemNameRight );
 488                      thisLink.attr( 'aria-label', menus.moveUnder.replace( '%s', prevItemNameRight ) ).text( thisLinkText ).css( 'display', 'inline' );
 489                  }
 490              }
 491  
 492              if ( isPrimaryMenuItem ) {
 493                  primaryItems = $( '.menu-item-depth-0' ),
 494                  itemPosition = primaryItems.index( menuItem ) + 1,
 495                  totalMenuItems = primaryItems.length,
 496  
 497                  // String together help text for primary menu items.
 498                  title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
 499              } else {
 500                  parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
 501                  parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
 502                  parentItemName = parentItem.find( '.menu-item-title' ).text(),
 503                  subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
 504                  itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 505  
 506                  // String together help text for sub menu items.
 507                  title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
 508              }
 509  
 510              $this.attr( 'aria-label', title );
 511  
 512              // Mark this item's accessibility as refreshed.
 513              $this.data( 'needs_accessibility_refresh', false );
 514          },
 515  
 516          /**
 517           * refreshAdvancedAccessibility
 518           *
 519           * Hides all advanced accessibility buttons and marks them for refreshing.
 520           */
 521          refreshAdvancedAccessibility : function() {
 522  
 523              // Hide all the move buttons by default.
 524              $( '.menu-item-settings .field-move .menus-move' ).hide();
 525  
 526              // Mark all menu items as unprocessed.
 527              $( 'a.item-edit' ).data( 'needs_accessibility_refresh', true );
 528  
 529              // All open items have to be refreshed or they will show no links.
 530              $( '.menu-item-edit-active a.item-edit' ).each( function() {
 531                  api.refreshAdvancedAccessibilityOfItem( this );
 532              } );
 533          },
 534  
 535          refreshKeyboardAccessibility : function() {
 536              $( 'a.item-edit' ).off( 'focus' ).on( 'focus', function(){
 537                  $(this).off( 'keydown' ).on( 'keydown', function(e){
 538  
 539                      var arrows,
 540                          $this = $( this ),
 541                          thisItem = $this.parents( 'li.menu-item' ),
 542                          thisItemData = thisItem.getItemData();
 543  
 544                      // Bail if it's not an arrow key.
 545                      if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
 546                          return;
 547  
 548                      // Avoid multiple keydown events.
 549                      $this.off('keydown');
 550  
 551                      // Bail if there is only one menu item.
 552                      if ( 1 === $('#menu-to-edit li').length )
 553                          return;
 554  
 555                      // If RTL, swap left/right arrows.
 556                      arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
 557                      if ( $('body').hasClass('rtl') )
 558                          arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
 559  
 560                      switch ( arrows[e.which] ) {
 561                      case 'up':
 562                          api.moveMenuItem( $this, 'up' );
 563                          break;
 564                      case 'down':
 565                          api.moveMenuItem( $this, 'down' );
 566                          break;
 567                      case 'left':
 568                          api.moveMenuItem( $this, 'left' );
 569                          break;
 570                      case 'right':
 571                          api.moveMenuItem( $this, 'right' );
 572                          break;
 573                      }
 574                      // Put focus back on same menu item.
 575                      $( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
 576                      return false;
 577                  });
 578              });
 579          },
 580  
 581          initPreviewing : function() {
 582              // Update the item handle title when the navigation label is changed.
 583              $( '#menu-to-edit' ).on( 'change input', '.edit-menu-item-title', function(e) {
 584                  var input = $( e.currentTarget ), title, titleEl;
 585                  title = input.val();
 586                  titleEl = input.closest( '.menu-item' ).find( '.menu-item-title' );
 587                  // Don't update to empty title.
 588                  if ( title ) {
 589                      titleEl.text( title ).removeClass( 'no-title' );
 590                  } else {
 591                      titleEl.text( navMenuL10n.untitled ).addClass( 'no-title' );
 592                  }
 593              } );
 594          },
 595  
 596          initToggles : function() {
 597              // Init postboxes.
 598              postboxes.add_postbox_toggles('nav-menus');
 599  
 600              // Adjust columns functions for menus UI.
 601              columns.useCheckboxesForHidden();
 602              columns.checked = function(field) {
 603                  $('.field-' + field).removeClass('hidden-field');
 604              };
 605              columns.unchecked = function(field) {
 606                  $('.field-' + field).addClass('hidden-field');
 607              };
 608              // Hide fields.
 609              api.menuList.hideAdvancedMenuItemFields();
 610  
 611              $('.hide-postbox-tog').click(function () {
 612                  var hidden = $( '.accordion-container li.accordion-section' ).filter(':hidden').map(function() { return this.id; }).get().join(',');
 613                  $.post(ajaxurl, {
 614                      action: 'closed-postboxes',
 615                      hidden: hidden,
 616                      closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
 617                      page: 'nav-menus'
 618                  });
 619              });
 620          },
 621  
 622          initSortables : function() {
 623              var currentDepth = 0, originalDepth, minDepth, maxDepth,
 624                  prev, next, prevBottom, nextThreshold, helperHeight, transport,
 625                  menuEdge = api.menuList.offset().left,
 626                  body = $('body'), maxChildDepth,
 627                  menuMaxDepth = initialMenuMaxDepth();
 628  
 629              if( 0 !== $( '#menu-to-edit li' ).length )
 630                  $( '.drag-instructions' ).show();
 631  
 632              // Use the right edge if RTL.
 633              menuEdge += api.isRTL ? api.menuList.width() : 0;
 634  
 635              api.menuList.sortable({
 636                  handle: '.menu-item-handle',
 637                  placeholder: 'sortable-placeholder',
 638                  items: api.options.sortableItems,
 639                  start: function(e, ui) {
 640                      var height, width, parent, children, tempHolder;
 641  
 642                      // Handle placement for RTL orientation.
 643                      if ( api.isRTL )
 644                          ui.item[0].style.right = 'auto';
 645  
 646                      transport = ui.item.children('.menu-item-transport');
 647  
 648                      // Set depths. currentDepth must be set before children are located.
 649                      originalDepth = ui.item.menuItemDepth();
 650                      updateCurrentDepth(ui, originalDepth);
 651  
 652                      // Attach child elements to parent.
 653                      // Skip the placeholder.
 654                      parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
 655                      children = parent.childMenuItems();
 656                      transport.append( children );
 657  
 658                      // Update the height of the placeholder to match the moving item.
 659                      height = transport.outerHeight();
 660                      // If there are children, account for distance between top of children and parent.
 661                      height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
 662                      height += ui.helper.outerHeight();
 663                      helperHeight = height;
 664                      height -= 2;                                              // Subtract 2 for borders.
 665                      ui.placeholder.height(height);
 666  
 667                      // Update the width of the placeholder to match the moving item.
 668                      maxChildDepth = originalDepth;
 669                      children.each(function(){
 670                          var depth = $(this).menuItemDepth();
 671                          maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
 672                      });
 673                      width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width.
 674                      width += api.depthToPx(maxChildDepth - originalDepth);    // Account for children.
 675                      width -= 2;                                               // Subtract 2 for borders.
 676                      ui.placeholder.width(width);
 677  
 678                      // Update the list of menu items.
 679                      tempHolder = ui.placeholder.next( '.menu-item' );
 680                      tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder.
 681                      ui.placeholder.detach();         // Detach or jQuery UI will think the placeholder is a menu item.
 682                      $(this).sortable( 'refresh' );   // The children aren't sortable. We should let jQuery UI know.
 683                      ui.item.after( ui.placeholder ); // Reattach the placeholder.
 684                      tempHolder.css('margin-top', 0); // Reset the margin.
 685  
 686                      // Now that the element is complete, we can update...
 687                      updateSharedVars(ui);
 688                  },
 689                  stop: function(e, ui) {
 690                      var children, subMenuTitle,
 691                          depthChange = currentDepth - originalDepth;
 692  
 693                      // Return child elements to the list.
 694                      children = transport.children().insertAfter(ui.item);
 695  
 696                      // Add "sub menu" description.
 697                      subMenuTitle = ui.item.find( '.item-title .is-submenu' );
 698                      if ( 0 < currentDepth )
 699                          subMenuTitle.show();
 700                      else
 701                          subMenuTitle.hide();
 702  
 703                      // Update depth classes.
 704                      if ( 0 !== depthChange ) {
 705                          ui.item.updateDepthClass( currentDepth );
 706                          children.shiftDepthClass( depthChange );
 707                          updateMenuMaxDepth( depthChange );
 708                      }
 709                      // Register a change.
 710                      api.registerChange();
 711                      // Update the item data.
 712                      ui.item.updateParentMenuItemDBId();
 713  
 714                      // Address sortable's incorrectly-calculated top in Opera.
 715                      ui.item[0].style.top = 0;
 716  
 717                      // Handle drop placement for rtl orientation.
 718                      if ( api.isRTL ) {
 719                          ui.item[0].style.left = 'auto';
 720                          ui.item[0].style.right = 0;
 721                      }
 722  
 723                      api.refreshKeyboardAccessibility();
 724                      api.refreshAdvancedAccessibility();
 725                  },
 726                  change: function(e, ui) {
 727                      // Make sure the placeholder is inside the menu.
 728                      // Otherwise fix it, or we're in trouble.
 729                      if( ! ui.placeholder.parent().hasClass('menu') )
 730                          (prev.length) ? prev.after( ui.placeholder ) : api.menuList.prepend( ui.placeholder );
 731  
 732                      updateSharedVars(ui);
 733                  },
 734                  sort: function(e, ui) {
 735                      var offset = ui.helper.offset(),
 736                          edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
 737                          depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
 738  
 739                      /*
 740                       * Check and correct if depth is not within range.
 741                       * Also, if the dragged element is dragged upwards over an item,
 742                       * shift the placeholder to a child position.
 743                       */
 744                      if ( depth > maxDepth || offset.top < ( prevBottom - api.options.targetTolerance ) ) {
 745                          depth = maxDepth;
 746                      } else if ( depth < minDepth ) {
 747                          depth = minDepth;
 748                      }
 749  
 750                      if( depth != currentDepth )
 751                          updateCurrentDepth(ui, depth);
 752  
 753                      // If we overlap the next element, manually shift downwards.
 754                      if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
 755                          next.after( ui.placeholder );
 756                          updateSharedVars( ui );
 757                          $( this ).sortable( 'refreshPositions' );
 758                      }
 759                  }
 760              });
 761  
 762  			function updateSharedVars(ui) {
 763                  var depth;
 764  
 765                  prev = ui.placeholder.prev( '.menu-item' );
 766                  next = ui.placeholder.next( '.menu-item' );
 767  
 768                  // Make sure we don't select the moving item.
 769                  if( prev[0] == ui.item[0] ) prev = prev.prev( '.menu-item' );
 770                  if( next[0] == ui.item[0] ) next = next.next( '.menu-item' );
 771  
 772                  prevBottom = (prev.length) ? prev.offset().top + prev.height() : 0;
 773                  nextThreshold = (next.length) ? next.offset().top + next.height() / 3 : 0;
 774                  minDepth = (next.length) ? next.menuItemDepth() : 0;
 775  
 776                  if( prev.length )
 777                      maxDepth = ( (depth = prev.menuItemDepth() + 1) > api.options.globalMaxDepth ) ? api.options.globalMaxDepth : depth;
 778                  else
 779                      maxDepth = 0;
 780              }
 781  
 782  			function updateCurrentDepth(ui, depth) {
 783                  ui.placeholder.updateDepthClass( depth, currentDepth );
 784                  currentDepth = depth;
 785              }
 786  
 787  			function initialMenuMaxDepth() {
 788                  if( ! body[0].className ) return 0;
 789                  var match = body[0].className.match(/menu-max-depth-(\d+)/);
 790                  return match && match[1] ? parseInt( match[1], 10 ) : 0;
 791              }
 792  
 793  			function updateMenuMaxDepth( depthChange ) {
 794                  var depth, newDepth = menuMaxDepth;
 795                  if ( depthChange === 0 ) {
 796                      return;
 797                  } else if ( depthChange > 0 ) {
 798                      depth = maxChildDepth + depthChange;
 799                      if( depth > menuMaxDepth )
 800                          newDepth = depth;
 801                  } else if ( depthChange < 0 && maxChildDepth == menuMaxDepth ) {
 802                      while( ! $('.menu-item-depth-' + newDepth, api.menuList).length && newDepth > 0 )
 803                          newDepth--;
 804                  }
 805                  // Update the depth class.
 806                  body.removeClass( 'menu-max-depth-' + menuMaxDepth ).addClass( 'menu-max-depth-' + newDepth );
 807                  menuMaxDepth = newDepth;
 808              }
 809          },
 810  
 811          initManageLocations : function () {
 812              $('#menu-locations-wrap form').submit(function(){
 813                  window.onbeforeunload = null;
 814              });
 815              $('.menu-location-menus select').on('change', function () {
 816                  var editLink = $(this).closest('tr').find('.locations-edit-menu-link');
 817                  if ($(this).find('option:selected').data('orig'))
 818                      editLink.show();
 819                  else
 820                      editLink.hide();
 821              });
 822          },
 823  
 824          attachMenuEditListeners : function() {
 825              var that = this;
 826              $('#update-nav-menu').bind('click', function(e) {
 827                  if ( e.target && e.target.className ) {
 828                      if ( -1 != e.target.className.indexOf('item-edit') ) {
 829                          return that.eventOnClickEditLink(e.target);
 830                      } else if ( -1 != e.target.className.indexOf('menu-save') ) {
 831                          return that.eventOnClickMenuSave(e.target);
 832                      } else if ( -1 != e.target.className.indexOf('menu-delete') ) {
 833                          return that.eventOnClickMenuDelete(e.target);
 834                      } else if ( -1 != e.target.className.indexOf('item-delete') ) {
 835                          return that.eventOnClickMenuItemDelete(e.target);
 836                      } else if ( -1 != e.target.className.indexOf('item-cancel') ) {
 837                          return that.eventOnClickCancelLink(e.target);
 838                      }
 839                  }
 840              });
 841  
 842              $( '#menu-name' ).on( 'input', _.debounce( function () {
 843                  var menuName = $( document.getElementById( 'menu-name' ) ),
 844                      menuNameVal = menuName.val();
 845  
 846                  if ( ! menuNameVal || ! menuNameVal.replace( /\s+/, '' ) ) {
 847                      // Add warning for invalid menu name.
 848                      menuName.parent().addClass( 'form-invalid' );
 849                  } else {
 850                      // Remove warning for valid menu name.
 851                      menuName.parent().removeClass( 'form-invalid' );
 852                  }
 853              }, 500 ) );
 854  
 855              $('#add-custom-links input[type="text"]').keypress(function(e){
 856                  $('#customlinkdiv').removeClass('form-invalid');
 857  
 858                  if ( e.keyCode === 13 ) {
 859                      e.preventDefault();
 860                      $( '#submit-customlinkdiv' ).click();
 861                  }
 862              });
 863          },
 864  
 865          attachMenuSaveSubmitListeners : function() {
 866              /*
 867               * When a navigation menu is saved, store a JSON representation of all form data
 868               * in a single input to avoid PHP `max_input_vars` limitations. See #14134.
 869               */
 870              $( '#update-nav-menu' ).submit( function() {
 871                  var navMenuData = $( '#update-nav-menu' ).serializeArray();
 872                  $( '[name="nav-menu-data"]' ).val( JSON.stringify( navMenuData ) );
 873              });
 874          },
 875  
 876          attachThemeLocationsListeners : function() {
 877              var loc = $('#nav-menu-theme-locations'), params = {};
 878              params.action = 'menu-locations-save';
 879              params['menu-settings-column-nonce'] = $('#menu-settings-column-nonce').val();
 880              loc.find('input[type="submit"]').click(function() {
 881                  loc.find('select').each(function() {
 882                      params[this.name] = $(this).val();
 883                  });
 884                  loc.find( '.spinner' ).addClass( 'is-active' );
 885                  $.post( ajaxurl, params, function() {
 886                      loc.find( '.spinner' ).removeClass( 'is-active' );
 887                  });
 888                  return false;
 889              });
 890          },
 891  
 892          attachQuickSearchListeners : function() {
 893              var searchTimer;
 894  
 895              // Prevent form submission.
 896              $( '#nav-menu-meta' ).on( 'submit', function( event ) {
 897                  event.preventDefault();
 898              });
 899  
 900              $( '#nav-menu-meta' ).on( 'input', '.quick-search', function() {
 901                  var $this = $( this );
 902  
 903                  $this.attr( 'autocomplete', 'off' );
 904  
 905                  if ( searchTimer ) {
 906                      clearTimeout( searchTimer );
 907                  }
 908  
 909                  searchTimer = setTimeout( function() {
 910                      api.updateQuickSearchResults( $this );
 911                   }, 500 );
 912              }).on( 'blur', '.quick-search', function() {
 913                  api.lastSearch = '';
 914              });
 915          },
 916  
 917          updateQuickSearchResults : function(input) {
 918              var panel, params,
 919                  minSearchLength = 2,
 920                  q = input.val();
 921  
 922              /*
 923               * Minimum characters for a search. Also avoid a new AJAX search when
 924               * the pressed key (e.g. arrows) doesn't change the searched term.
 925               */
 926              if ( q.length < minSearchLength || api.lastSearch == q ) {
 927                  return;
 928              }
 929  
 930              api.lastSearch = q;
 931  
 932              panel = input.parents('.tabs-panel');
 933              params = {
 934                  'action': 'menu-quick-search',
 935                  'response-format': 'markup',
 936                  'menu': $('#menu').val(),
 937                  'menu-settings-column-nonce': $('#menu-settings-column-nonce').val(),
 938                  'q': q,
 939                  'type': input.attr('name')
 940              };
 941  
 942              $( '.spinner', panel ).addClass( 'is-active' );
 943  
 944              $.post( ajaxurl, params, function(menuMarkup) {
 945                  api.processQuickSearchQueryResponse(menuMarkup, params, panel);
 946              });
 947          },
 948  
 949          addCustomLink : function( processMethod ) {
 950              var url = $('#custom-menu-item-url').val().trim(),
 951                  label = $('#custom-menu-item-name').val();
 952  
 953              processMethod = processMethod || api.addMenuItemToBottom;
 954  
 955              if ( '' === url || 'https://' == url || 'http://' == url ) {
 956                  $('#customlinkdiv').addClass('form-invalid');
 957                  return false;
 958              }
 959  
 960              // Show the Ajax spinner.
 961              $( '.customlinkdiv .spinner' ).addClass( 'is-active' );
 962              this.addLinkToMenu( url, label, processMethod, function() {
 963                  // Remove the Ajax spinner.
 964                  $( '.customlinkdiv .spinner' ).removeClass( 'is-active' );
 965                  // Set custom link form back to defaults.
 966                  $('#custom-menu-item-name').val('').blur();
 967                  $( '#custom-menu-item-url' ).val( '' ).attr( 'placeholder', 'https://' );
 968              });
 969          },
 970  
 971          addLinkToMenu : function(url, label, processMethod, callback) {
 972              processMethod = processMethod || api.addMenuItemToBottom;
 973              callback = callback || function(){};
 974  
 975              api.addItemToMenu({
 976                  '-1': {
 977                      'menu-item-type': 'custom',
 978                      'menu-item-url': url,
 979                      'menu-item-title': label
 980                  }
 981              }, processMethod, callback);
 982          },
 983  
 984          addItemToMenu : function(menuItem, processMethod, callback) {
 985              var menu = $('#menu').val(),
 986                  nonce = $('#menu-settings-column-nonce').val(),
 987                  params;
 988  
 989              processMethod = processMethod || function(){};
 990              callback = callback || function(){};
 991  
 992              params = {
 993                  'action': 'add-menu-item',
 994                  'menu': menu,
 995                  'menu-settings-column-nonce': nonce,
 996                  'menu-item': menuItem
 997              };
 998  
 999              $.post( ajaxurl, params, function(menuMarkup) {
1000                  var ins = $('#menu-instructions');
1001  
1002                  menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces.
1003                  processMethod(menuMarkup, params);
1004  
1005                  // Make it stand out a bit more visually, by adding a fadeIn.
1006                  $( 'li.pending' ).hide().fadeIn('slow');
1007                  $( '.drag-instructions' ).show();
1008                  if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
1009                      ins.addClass( 'menu-instructions-inactive' );
1010  
1011                  callback();
1012              });
1013          },
1014  
1015          /**
1016           * Process the add menu item request response into menu list item. Appends to menu.
1017           *
1018           * @param {string} menuMarkup The text server response of menu item markup.
1019           *
1020           * @fires document#menu-item-added Passes menuMarkup as a jQuery object.
1021           */
1022          addMenuItemToBottom : function( menuMarkup ) {
1023              var $menuMarkup = $( menuMarkup );
1024              $menuMarkup.hideAdvancedMenuItemFields().appendTo( api.targetList );
1025              api.refreshKeyboardAccessibility();
1026              api.refreshAdvancedAccessibility();
1027              $( document ).trigger( 'menu-item-added', [ $menuMarkup ] );
1028          },
1029  
1030          /**
1031           * Process the add menu item request response into menu list item. Prepends to menu.
1032           *
1033           * @param {string} menuMarkup The text server response of menu item markup.
1034           *
1035           * @fires document#menu-item-added Passes menuMarkup as a jQuery object.
1036           */
1037          addMenuItemToTop : function( menuMarkup ) {
1038              var $menuMarkup = $( menuMarkup );
1039              $menuMarkup.hideAdvancedMenuItemFields().prependTo( api.targetList );
1040              api.refreshKeyboardAccessibility();
1041              api.refreshAdvancedAccessibility();
1042              $( document ).trigger( 'menu-item-added', [ $menuMarkup ] );
1043          },
1044  
1045          attachUnsavedChangesListener : function() {
1046              $('#menu-management input, #menu-management select, #menu-management, #menu-management textarea, .menu-location-menus select').change(function(){
1047                  api.registerChange();
1048              });
1049  
1050              if ( 0 !== $('#menu-to-edit').length || 0 !== $('.menu-location-menus select').length ) {
1051                  window.onbeforeunload = function(){
1052                      if ( api.menusChanged )
1053                          return navMenuL10n.saveAlert;
1054                  };
1055              } else {
1056                  // Make the post boxes read-only, as they can't be used yet.
1057                  $( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
1058              }
1059          },
1060  
1061          registerChange : function() {
1062              api.menusChanged = true;
1063          },
1064  
1065          attachTabsPanelListeners : function() {
1066              $('#menu-settings-column').bind('click', function(e) {
1067                  var selectAreaMatch, selectAll, panelId, wrapper, items,
1068                      target = $(e.target);
1069  
1070                  if ( target.hasClass('nav-tab-link') ) {
1071  
1072                      panelId = target.data( 'type' );
1073  
1074                      wrapper = target.parents('.accordion-section-content').first();
1075  
1076                      // Upon changing tabs, we want to uncheck all checkboxes.
1077                      $( 'input', wrapper ).prop( 'checked', false );
1078  
1079                      $('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
1080                      $('#' + panelId, wrapper).removeClass('tabs-panel-inactive').addClass('tabs-panel-active');
1081  
1082                      $('.tabs', wrapper).removeClass('tabs');
1083                      target.parent().addClass('tabs');
1084  
1085                      // Select the search bar.
1086                      $('.quick-search', wrapper).focus();
1087  
1088                      // Hide controls in the search tab if no items found.
1089                      if ( ! wrapper.find( '.tabs-panel-active .menu-item-title' ).length ) {
1090                          wrapper.addClass( 'has-no-menu-item' );
1091                      } else {
1092                          wrapper.removeClass( 'has-no-menu-item' );
1093                      }
1094  
1095                      e.preventDefault();
1096                  } else if ( target.hasClass( 'select-all' ) ) {
1097                      selectAreaMatch = target.closest( '.button-controls' ).data( 'items-type' );
1098                      if ( selectAreaMatch ) {
1099                          items = $( '#' + selectAreaMatch + ' .tabs-panel-active .menu-item-title input' );
1100  
1101                          if ( items.length === items.filter( ':checked' ).length && ! target.is( ':checked' ) ) {
1102                              items.prop( 'checked', false );
1103                          } else if ( target.is( ':checked' ) ) {
1104                              items.prop( 'checked', true );
1105                          }
1106                      }
1107                  } else if ( target.hasClass( 'menu-item-checkbox' ) ) {
1108                      selectAreaMatch = target.closest( '.tabs-panel-active' ).parent().attr( 'id' );
1109                      if ( selectAreaMatch ) {
1110                          items     = $( '#' + selectAreaMatch + ' .tabs-panel-active .menu-item-title input' );
1111                          selectAll = $( '.button-controls[data-items-type="' + selectAreaMatch + '"] .select-all' );
1112  
1113                          if ( items.length === items.filter( ':checked' ).length && ! selectAll.is( ':checked' ) ) {
1114                              selectAll.prop( 'checked', true );
1115                          } else if ( selectAll.is( ':checked' ) ) {
1116                              selectAll.prop( 'checked', false );
1117                          }
1118                      }
1119                  } else if ( target.hasClass('submit-add-to-menu') ) {
1120                      api.registerChange();
1121  
1122                      if ( e.target.id && 'submit-customlinkdiv' == e.target.id )
1123                          api.addCustomLink( api.addMenuItemToBottom );
1124                      else if ( e.target.id && -1 != e.target.id.indexOf('submit-') )
1125                          $('#' + e.target.id.replace(/submit-/, '')).addSelectedToMenu( api.addMenuItemToBottom );
1126                      return false;
1127                  }
1128              });
1129  
1130              /*
1131               * Delegate the `click` event and attach it just to the pagination
1132               * links thus excluding the current page `<span>`. See ticket #35577.
1133               */
1134              $( '#nav-menu-meta' ).on( 'click', 'a.page-numbers', function() {
1135                  var $container = $( this ).closest( '.inside' );
1136  
1137                  $.post( ajaxurl, this.href.replace( /.*\?/, '' ).replace( /action=([^&]*)/, '' ) + '&action=menu-get-metabox',
1138                      function( resp ) {
1139                          var metaBoxData = $.parseJSON( resp ),
1140                              toReplace;
1141  
1142                          if ( -1 === resp.indexOf( 'replace-id' ) ) {
1143                              return;
1144                          }
1145  
1146                          // Get the post type menu meta box to update.
1147                          toReplace = document.getElementById( metaBoxData['replace-id'] );
1148  
1149                          if ( ! metaBoxData.markup || ! toReplace ) {
1150                              return;
1151                          }
1152  
1153                          // Update the post type menu meta box with new content from the response.
1154                          $container.html( metaBoxData.markup );
1155                      }
1156                  );
1157  
1158                  return false;
1159              });
1160          },
1161  
1162          eventOnClickEditLink : function(clickedEl) {
1163              var settings, item,
1164              matchedSection = /#(.*)$/.exec(clickedEl.href);
1165  
1166              if ( matchedSection && matchedSection[1] ) {
1167                  settings = $('#'+matchedSection[1]);
1168                  item = settings.parent();
1169                  if( 0 !== item.length ) {
1170                      if( item.hasClass('menu-item-edit-inactive') ) {
1171                          if( ! settings.data('menu-item-data') ) {
1172                              settings.data( 'menu-item-data', settings.getItemData() );
1173                          }
1174                          settings.slideDown('fast');
1175                          item.removeClass('menu-item-edit-inactive')
1176                              .addClass('menu-item-edit-active');
1177                      } else {
1178                          settings.slideUp('fast');
1179                          item.removeClass('menu-item-edit-active')
1180                              .addClass('menu-item-edit-inactive');
1181                      }
1182                      return false;
1183                  }
1184              }
1185          },
1186  
1187          eventOnClickCancelLink : function(clickedEl) {
1188              var settings = $( clickedEl ).closest( '.menu-item-settings' ),
1189                  thisMenuItem = $( clickedEl ).closest( '.menu-item' );
1190  
1191              thisMenuItem.removeClass( 'menu-item-edit-active' ).addClass( 'menu-item-edit-inactive' );
1192              settings.setItemData( settings.data( 'menu-item-data' ) ).hide();
1193              // Restore the title of the currently active/expanded menu item.
1194              thisMenuItem.find( '.menu-item-title' ).text( settings.data( 'menu-item-data' )['menu-item-title'] );
1195  
1196              return false;
1197          },
1198  
1199          eventOnClickMenuSave : function() {
1200              var locs = '',
1201              menuName = $('#menu-name'),
1202              menuNameVal = menuName.val();
1203  
1204              // Cancel and warn if invalid menu name.
1205              if ( ! menuNameVal || ! menuNameVal.replace( /\s+/, '' ) ) {
1206                  menuName.parent().addClass( 'form-invalid' );
1207                  return false;
1208              }
1209              // Copy menu theme locations.
1210              $('#nav-menu-theme-locations select').each(function() {
1211                  locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
1212              });
1213              $('#update-nav-menu').append( locs );
1214              // Update menu item position data.
1215              api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
1216              window.onbeforeunload = null;
1217  
1218              return true;
1219          },
1220  
1221          eventOnClickMenuDelete : function() {
1222              // Delete warning AYS.
1223              if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
1224                  window.onbeforeunload = null;
1225                  return true;
1226              }
1227              return false;
1228          },
1229  
1230          eventOnClickMenuItemDelete : function(clickedEl) {
1231              var itemID = parseInt(clickedEl.id.replace('delete-', ''), 10);
1232  
1233              api.removeMenuItem( $('#menu-item-' + itemID) );
1234              api.registerChange();
1235              return false;
1236          },
1237  
1238          /**
1239           * Process the quick search response into a search result
1240           *
1241           * @param string resp The server response to the query.
1242           * @param object req The request arguments.
1243           * @param jQuery panel The tabs panel we're searching in.
1244           */
1245          processQuickSearchQueryResponse : function(resp, req, panel) {
1246              var matched, newID,
1247              takenIDs = {},
1248              form = document.getElementById('nav-menu-meta'),
1249              pattern = /menu-item[(\[^]\]*/,
1250              $items = $('<div>').html(resp).find('li'),
1251              wrapper = panel.closest( '.accordion-section-content' ),
1252              selectAll = wrapper.find( '.button-controls .select-all' ),
1253              $item;
1254  
1255              if( ! $items.length ) {
1256                  $('.categorychecklist', panel).html( '<li><p>' + navMenuL10n.noResultsFound + '</p></li>' );
1257                  $( '.spinner', panel ).removeClass( 'is-active' );
1258                  wrapper.addClass( 'has-no-menu-item' );
1259                  return;
1260              }
1261  
1262              $items.each(function(){
1263                  $item = $(this);
1264  
1265                  // Make a unique DB ID number.
1266                  matched = pattern.exec($item.html());
1267  
1268                  if ( matched && matched[1] ) {
1269                      newID = matched[1];
1270                      while( form.elements['menu-item[' + newID + '][menu-item-type]'] || takenIDs[ newID ] ) {
1271                          newID--;
1272                      }
1273  
1274                      takenIDs[newID] = true;
1275                      if ( newID != matched[1] ) {
1276                          $item.html( $item.html().replace(new RegExp(
1277                              'menu-item\\[' + matched[1] + '\\]', 'g'),
1278                              'menu-item[' + newID + ']'
1279                          ) );
1280                      }
1281                  }
1282              });
1283  
1284              $('.categorychecklist', panel).html( $items );
1285              $( '.spinner', panel ).removeClass( 'is-active' );
1286              wrapper.removeClass( 'has-no-menu-item' );
1287  
1288              if ( selectAll.is( ':checked' ) ) {
1289                  selectAll.prop( 'checked', false );
1290              }
1291          },
1292  
1293          /**
1294           * Remove a menu item.
1295           * @param  {object} el The element to be removed as a jQuery object.
1296           *
1297           * @fires document#menu-removing-item Passes the element to be removed.
1298           */
1299          removeMenuItem : function(el) {
1300              var children = el.childMenuItems();
1301  
1302              $( document ).trigger( 'menu-removing-item', [ el ] );
1303              el.addClass('deleting').animate({
1304                      opacity : 0,
1305                      height: 0
1306                  }, 350, function() {
1307                      var ins = $('#menu-instructions');
1308                      el.remove();
1309                      children.shiftDepthClass( -1 ).updateParentMenuItemDBId();
1310                      if ( 0 === $( '#menu-to-edit li' ).length ) {
1311                          $( '.drag-instructions' ).hide();
1312                          ins.removeClass( 'menu-instructions-inactive' );
1313                      }
1314                      api.refreshAdvancedAccessibility();
1315                  });
1316          },
1317  
1318          depthToPx : function(depth) {
1319              return depth * api.options.menuItemDepthPerLevel;
1320          },
1321  
1322          pxToDepth : function(px) {
1323              return Math.floor(px / api.options.menuItemDepthPerLevel);
1324          }
1325  
1326      };
1327  
1328      $(document).ready(function(){ wpNavMenu.init(); });
1329  
1330  })(jQuery);


Generated: Fri Apr 3 01:00:03 2020 Cross-referenced by PHPXref 0.7.1