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(function ( $ ) {
	'use strict';

var $tabEl,
				$toggleEl,
				$navigation,
				sectionId,
				html,
				title,
				models,
				index,
				tabAdded;

tabAdded = false;
			sectionId = model.get( 'id' );
			$navigation = this.$el.find( '.vc_tta-tabs-container .vc_tta-tabs-list' );
			$tabEl = $navigation.find( '[data-vc-target="[data-model-id=' + sectionId + ']"]' );
			$toggleEl = this.$el.find( '.wpb-tta-toggle' );
			title = model.getParam( 'title' );

if ( $tabEl.length ) {
				html = '' + title + '';
				html = this.addIcon( model, html );

$tabEl.html( html );
			} else if ( $toggleEl.length ) {
				var section = this.$el.find('[data-model-id="' + sectionId + '"]');
				if (section.length) {
					var firstTitle = this.$el.find('.wpb-tta-toggle-wrapper span:first');
					var secondTitle = this.$el.find('.wpb-tta-toggle-wrapper span:last');
					var section_index = section.find('[data-vc-section-index]').attr('data-vc-section-index');

if ('1' === section_index) {
						firstTitle.html(title);
					} else {
						secondTitle.html(title);
					}
				}
			} else {
				var $element;
				html = '' + title + '';

html = this.addIcon( model, html );
				$element = $( '<li class="vc_tta-tab" data-vc-target-model-id="' + sectionId + '" data-vc-tab><a href="javascript:;" data-vc-use-cache="false" data-vc-tabs data-vc-target="[data-model-id=' + sectionId + ']" data-vc-container=".vc_tta">' + html + '</a></li>' );
				if ( true !== justAppend ) {
					models = _.pluck( _.sortBy( vc.shortcodes.where( { parent_id: this.model.get( 'id' ) } ),
						function ( childModel ) {
							return childModel.get( 'order' );
						} ), 'id' );
					index = models.indexOf( model.get( 'id' ) ) - 1;
					if ( index > - 1 && $navigation.find( '[data-vc-tab]:eq(' + index + ')' ).length ) {
						$element.insertAfter( $navigation.find( '[data-vc-tab]:eq(' + index + ')' ) );
						tabAdded = true;
					}
				}
				if ( !tabAdded ) {
					$element.appendTo( $navigation );
				}
				if ( model.get( 'isActiveSection' ) ) {
					$element.addClass( this.activeClass );
				}
			}
			this.buildPagination();
		},
		getNextTab: function ( $viewTab ) {
			var lastIndex, viewTabIndex, $nextTab, $navigationSections;

$navigationSections = this.$el.find( '.vc_tta-tabs-container .vc_tta-tabs-list' ).children();
			lastIndex = $navigationSections.length - 1; // -1 because length starts from 1
			viewTabIndex = $viewTab.index();

if ( viewTabIndex !== lastIndex ) {
				$nextTab = $navigationSections.eq( viewTabIndex + 1 );
			} else {
				// If we are the last tab in in navigation lets make active previous
				$nextTab = $navigationSections.eq( viewTabIndex - 1 );
			}
			return $nextTab;
		},
		removeSection: function ( modelId ) {
			var $viewTab, $nextTab, tabIsActive;

$viewTab = this.$el.find( '.vc_tta-tabs-container .vc_tta-tabs-list [data-vc-target="[data-model-id=' + modelId + ']"]' ).parent();
			tabIsActive = $viewTab.hasClass( this.activeClass );

// Make next tab active if needed
			if ( tabIsActive ) {
				$nextTab = this.getNextTab( $viewTab );
				vc.frame_window.jQuery( $nextTab ).find( '[data-vc-target]' ).trigger( 'click' );
			}
			// Remove tab from navigation
			$viewTab.remove();
			this.buildPagination();
		},
		buildSortableNavigation: function () {
			if ( !vc_user_access().shortcodeEdit( this.model.get( 'shortcode' ) ) ) {
				return;
			}
			// this should be called when new tab added/removed/changed.
			this.$el.find( '.vc_tta-tabs-container .vc_tta-tabs-list' ).sortable( {
				items: '.vc_tta-tab',
				forcePlaceholderSize: true,
				placeholder: 'vc_tta-tab vc_placeholder-tta-tab',
				helper: this.renderSortingHelper,
				start: function ( event, ui ) {
					ui.placeholder.width( ui.item.width() );
				},
				over: function ( event, ui ) {
					ui.placeholder.css( { maxWidth: ui.placeholder.parent().width() } );
					ui.placeholder.removeClass( 'vc_hidden-placeholder' );
				},
				update: this.updateSortingNavigation
			} );
		},
		updateSorting: function ( event, ui ) {
			window.InlineShortcodeView_vc_tta_tabs.__super__.updateSorting.call( this, event, ui );
			this.updateTabsPositions( this.getPanelsList() );
		},
		updateSortingNavigation: function () {
			var $tabs, self;
			self = this;
			$tabs = this.$el.find( '.vc_tta-tabs-list' );
			// we are sorting a tabs navigation
			$tabs.find( '> .vc_tta-tab' ).each( function () {
				var shortcode, modelId, $li;

$li = $( this ).removeAttr( 'style' ); // TODO: Attensiton maybe e need to create method with filter
				modelId = $li.data( 'vcTargetModelId' );
				shortcode = vc.shortcodes.get( modelId );
				shortcode.save( { 'order': self.getIndex( $li ) }, { silent: true } );
				// now we need to sort panels
			} );
			this.updatePanelsPositions( $tabs );
		},
		updateTabsPositions: function ( $panels ) {
			var $tabs, $elements, tabSortableData;
			$tabs = this.$el.find( '.vc_tta-tabs-list' );
			if ( $tabs.length ) {
				$elements = [];
				tabSortableData = $panels.sortable( 'toArray', { attribute: 'data-model-id' } );
				_.each( tabSortableData, function ( value ) {
					$elements.push( $tabs.find( '[data-vc-target-model-id="' + value + '"]' ) );
				}, this );
				$tabs.prepend( $elements );
			}
			this.buildPagination();
		},
		updatePanelsPositions: function ( $tabs ) {
			var $elements, tabSortableData, $panels;
			$panels = this.getPanelsList();
			$elements = [];
			tabSortableData = $tabs.sortable( 'toArray', { attribute: 'data-vc-target-model-id' } );
			_.each( tabSortableData, function ( value ) {
				$elements.push( $panels.find( '[data-model-id="' + value + '"]' ) );
			}, this );
			$panels.prepend( $elements );
			this.buildPagination();
		},
		renderSortingHelper: function ( event, currentItem ) {
			var helper, currentItemWidth, currentItemHeight;
			helper = currentItem;
			currentItemWidth = currentItem.width() + 1;
			currentItemHeight = currentItem.height();
			helper.width( currentItemWidth );
			helper.height( currentItemHeight );
			return helper;
		},
		buildPagination: function () {
			var params;
			this.removePagination();
			// If tap-pos top append:
			params = this.model.get( 'params' );
			if ( !_.isUndefined( params.pagination_style ) && params.pagination_style.length ) {
				if ( 'top' === params.tab_position ) {
					this.$el.find( '.vc_tta-panels-container' ).append( this.getPaginationList() );
				} else {
					this.getPaginationList().insertBefore( this.$el.find( '.vc_tta-container .vc_tta-panels' ) );
				}
			}
		}
	} );
})( window.jQuery );