balmet.com

tabs.js (23552B)

---

 /*!
  * jQuery UI Tabs 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Tabs
 //>>group: Widgets
 //>>description: Transforms a set of container elements into a tab structure.
 //>>docs: http://api.jqueryui.com/tabs/
 //>>demos: http://jqueryui.com/tabs/
 //>>css.structure: ../../themes/base/core.css
 //>>css.structure: ../../themes/base/tabs.css
 //>>css.theme: ../../themes/base/theme.css
 
 ( function( factory ) {
 	if ( typeof define === "function" && define.amd ) {
 
 		// AMD. Register as an anonymous module.
 		define( [
 			"jquery",
 			"./core"
 		], factory );
 	} else {
 
 		// Browser globals
 		factory( jQuery );
 	}
 }( function( $ ) {
 
 $.widget( "ui.tabs", {
 	version: "1.12.1",
 	delay: 300,
 	options: {
 		active: null,
 		classes: {
 			"ui-tabs": "ui-corner-all",
 			"ui-tabs-nav": "ui-corner-all",
 			"ui-tabs-panel": "ui-corner-bottom",
 			"ui-tabs-tab": "ui-corner-top"
 		},
 		collapsible: false,
 		event: "click",
 		heightStyle: "content",
 		hide: null,
 		show: null,
 
 		// Callbacks
 		activate: null,
 		beforeActivate: null,
 		beforeLoad: null,
 		load: null
 	},
 
 	_isLocal: ( function() {
 		var rhash = /#.*$/;
 
 		return function( anchor ) {
 			var anchorUrl, locationUrl;
 
 			anchorUrl = anchor.href.replace( rhash, "" );
 			locationUrl = location.href.replace( rhash, "" );
 
 			// Decoding may throw an error if the URL isn't UTF-8 (#9518)
 			try {
 				anchorUrl = decodeURIComponent( anchorUrl );
 			} catch ( error ) {}
 			try {
 				locationUrl = decodeURIComponent( locationUrl );
 			} catch ( error ) {}
 
 			return anchor.hash.length > 1 && anchorUrl === locationUrl;
 		};
 	} )(),
 
 	_create: function() {
 		var that = this,
 			options = this.options;
 
 		this.running = false;
 
 		this._addClass( "ui-tabs", "ui-widget ui-widget-content" );
 		this._toggleClass( "ui-tabs-collapsible", null, options.collapsible );
 
 		this._processTabs();
 		options.active = this._initialActive();
 
 		// Take disabling tabs via class attribute from HTML
 		// into account and update option properly.
 		if ( $.isArray( options.disabled ) ) {
 			options.disabled = $.unique( options.disabled.concat(
 				$.map( this.tabs.filter( ".ui-state-disabled" ), function( li ) {
 					return that.tabs.index( li );
 				} )
 			) ).sort();
 		}
 
 		// Check for length avoids error when initializing empty list
 		if ( this.options.active !== false && this.anchors.length ) {
 			this.active = this._findActive( options.active );
 		} else {
 			this.active = $();
 		}
 
 		this._refresh();
 
 		if ( this.active.length ) {
 			this.load( options.active );
 		}
 	},
 
 	_initialActive: function() {
 		var active = this.options.active,
 			collapsible = this.options.collapsible,
 			locationHash = location.hash.substring( 1 );
 
 		if ( active === null ) {
 
 			// check the fragment identifier in the URL
 			if ( locationHash ) {
 				this.tabs.each( function( i, tab ) {
 					if ( $( tab ).attr( "aria-controls" ) === locationHash ) {
 						active = i;
 						return false;
 					}
 				} );
 			}
 
 			// Check for a tab marked active via a class
 			if ( active === null ) {
 				active = this.tabs.index( this.tabs.filter( ".ui-tabs-active" ) );
 			}
 
 			// No active tab, set to false
 			if ( active === null || active === -1 ) {
 				active = this.tabs.length ? 0 : false;
 			}
 		}
 
 		// Handle numbers: negative, out of range
 		if ( active !== false ) {
 			active = this.tabs.index( this.tabs.eq( active ) );
 			if ( active === -1 ) {
 				active = collapsible ? false : 0;
 			}
 		}
 
 		// Don't allow collapsible: false and active: false
 		if ( !collapsible && active === false && this.anchors.length ) {
 			active = 0;
 		}
 
 		return active;
 	},
 
 	_getCreateEventData: function() {
 		return {
 			tab: this.active,
 			panel: !this.active.length ? $() : this._getPanelForTab( this.active )
 		};
 	},
 
 	_tabKeydown: function( event ) {
 		var focusedTab = $( $.ui.safeActiveElement( this.document[ 0 ] ) ).closest( "li" ),
 			selectedIndex = this.tabs.index( focusedTab ),
 			goingForward = true;
 
 		if ( this._handlePageNav( event ) ) {
 			return;
 		}
 
 		switch ( event.keyCode ) {
 		case $.ui.keyCode.RIGHT:
 		case $.ui.keyCode.DOWN:
 			selectedIndex++;
 			break;
 		case $.ui.keyCode.UP:
 		case $.ui.keyCode.LEFT:
 			goingForward = false;
 			selectedIndex--;
 			break;
 		case $.ui.keyCode.END:
 			selectedIndex = this.anchors.length - 1;
 			break;
 		case $.ui.keyCode.HOME:
 			selectedIndex = 0;
 			break;
 		case $.ui.keyCode.SPACE:
 
 			// Activate only, no collapsing
 			event.preventDefault();
 			clearTimeout( this.activating );
 			this._activate( selectedIndex );
 			return;
 		case $.ui.keyCode.ENTER:
 
 			// Toggle (cancel delayed activation, allow collapsing)
 			event.preventDefault();
 			clearTimeout( this.activating );
 
 			// Determine if we should collapse or activate
 			this._activate( selectedIndex === this.options.active ? false : selectedIndex );
 			return;
 		default:
 			return;
 		}
 
 		// Focus the appropriate tab, based on which key was pressed
 		event.preventDefault();
 		clearTimeout( this.activating );
 		selectedIndex = this._focusNextTab( selectedIndex, goingForward );
 
 		// Navigating with control/command key will prevent automatic activation
 		if ( !event.ctrlKey && !event.metaKey ) {
 
 			// Update aria-selected immediately so that AT think the tab is already selected.
 			// Otherwise AT may confuse the user by stating that they need to activate the tab,
 			// but the tab will already be activated by the time the announcement finishes.
 			focusedTab.attr( "aria-selected", "false" );
 			this.tabs.eq( selectedIndex ).attr( "aria-selected", "true" );
 
 			this.activating = this._delay( function() {
 				this.option( "active", selectedIndex );
 			}, this.delay );
 		}
 	},
 
 	_panelKeydown: function( event ) {
 		if ( this._handlePageNav( event ) ) {
 			return;
 		}
 
 		// Ctrl+up moves focus to the current tab
 		if ( event.ctrlKey && event.keyCode === $.ui.keyCode.UP ) {
 			event.preventDefault();
 			this.active.trigger( "focus" );
 		}
 	},
 
 	// Alt+page up/down moves focus to the previous/next tab (and activates)
 	_handlePageNav: function( event ) {
 		if ( event.altKey && event.keyCode === $.ui.keyCode.PAGE_UP ) {
 			this._activate( this._focusNextTab( this.options.active - 1, false ) );
 			return true;
 		}
 		if ( event.altKey && event.keyCode === $.ui.keyCode.PAGE_DOWN ) {
 			this._activate( this._focusNextTab( this.options.active + 1, true ) );
 			return true;
 		}
 	},
 
 	_findNextTab: function( index, goingForward ) {
 		var lastTabIndex = this.tabs.length - 1;
 
 		function constrain() {
 			if ( index > lastTabIndex ) {
 				index = 0;
 			}
 			if ( index < 0 ) {
 				index = lastTabIndex;
 			}
 			return index;
 		}
 
 		while ( $.inArray( constrain(), this.options.disabled ) !== -1 ) {
 			index = goingForward ? index + 1 : index - 1;
 		}
 
 		return index;
 	},
 
 	_focusNextTab: function( index, goingForward ) {
 		index = this._findNextTab( index, goingForward );
 		this.tabs.eq( index ).trigger( "focus" );
 		return index;
 	},
 
 	_setOption: function( key, value ) {
 		if ( key === "active" ) {
 
 			// _activate() will handle invalid values and update this.options
 			this._activate( value );
 			return;
 		}
 
 		this._super( key, value );
 
 		if ( key === "collapsible" ) {
 			this._toggleClass( "ui-tabs-collapsible", null, value );
 
 			// Setting collapsible: false while collapsed; open first panel
 			if ( !value && this.options.active === false ) {
 				this._activate( 0 );
 			}
 		}
 
 		if ( key === "event" ) {
 			this._setupEvents( value );
 		}
 
 		if ( key === "heightStyle" ) {
 			this._setupHeightStyle( value );
 		}
 	},
 
 	_sanitizeSelector: function( hash ) {
 		return hash ? hash.replace( /[!"$%&'()*+,.\/:;<=>?@\[\]\^`{|}~]/g, "\\$&" ) : "";
 	},
 
 	refresh: function() {
 		var options = this.options,
 			lis = this.tablist.children( ":has(a[href])" );
 
 		// Get disabled tabs from class attribute from HTML
 		// this will get converted to a boolean if needed in _refresh()
 		options.disabled = $.map( lis.filter( ".ui-state-disabled" ), function( tab ) {
 			return lis.index( tab );
 		} );
 
 		this._processTabs();
 
 		// Was collapsed or no tabs
 		if ( options.active === false || !this.anchors.length ) {
 			options.active = false;
 			this.active = $();
 
 		// was active, but active tab is gone
 		} else if ( this.active.length && !$.contains( this.tablist[ 0 ], this.active[ 0 ] ) ) {
 
 			// all remaining tabs are disabled
 			if ( this.tabs.length === options.disabled.length ) {
 				options.active = false;
 				this.active = $();
 
 			// activate previous tab
 			} else {
 				this._activate( this._findNextTab( Math.max( 0, options.active - 1 ), false ) );
 			}
 
 		// was active, active tab still exists
 		} else {
 
 			// make sure active index is correct
 			options.active = this.tabs.index( this.active );
 		}
 
 		this._refresh();
 	},
 
 	_refresh: function() {
 		this._setOptionDisabled( this.options.disabled );
 		this._setupEvents( this.options.event );
 		this._setupHeightStyle( this.options.heightStyle );
 
 		this.tabs.not( this.active ).attr( {
 			"aria-selected": "false",
 			"aria-expanded": "false",
 			tabIndex: -1
 		} );
 		this.panels.not( this._getPanelForTab( this.active ) )
 			.hide()
 			.attr( {
 				"aria-hidden": "true"
 			} );
 
 		// Make sure one tab is in the tab order
 		if ( !this.active.length ) {
 			this.tabs.eq( 0 ).attr( "tabIndex", 0 );
 		} else {
 			this.active
 				.attr( {
 					"aria-selected": "true",
 					"aria-expanded": "true",
 					tabIndex: 0
 				} );
 			this._addClass( this.active, "ui-tabs-active", "ui-state-active" );
 			this._getPanelForTab( this.active )
 				.show()
 				.attr( {
 					"aria-hidden": "false"
 				} );
 		}
 	},
 
 	_processTabs: function() {
 		var that = this,
 			prevTabs = this.tabs,
 			prevAnchors = this.anchors,
 			prevPanels = this.panels;
 
 		this.tablist = this._getList().attr( "role", "tablist" );
 		this._addClass( this.tablist, "ui-tabs-nav",
 			"ui-helper-reset ui-helper-clearfix ui-widget-header" );
 
 		// Prevent users from focusing disabled tabs via click
 		this.tablist
 			.on( "mousedown" + this.eventNamespace, "> li", function( event ) {
 				if ( $( this ).is( ".ui-state-disabled" ) ) {
 					event.preventDefault();
 				}
 			} )
 
 			// Support: IE <9
 			// Preventing the default action in mousedown doesn't prevent IE
 			// from focusing the element, so if the anchor gets focused, blur.
 			// We don't have to worry about focusing the previously focused
 			// element since clicking on a non-focusable element should focus
 			// the body anyway.
 			.on( "focus" + this.eventNamespace, ".ui-tabs-anchor", function() {
 				if ( $( this ).closest( "li" ).is( ".ui-state-disabled" ) ) {
 					this.blur();
 				}
 			} );
 
 		this.tabs = this.tablist.find( "> li:has(a[href])" )
 			.attr( {
 				role: "tab",
 				tabIndex: -1
 			} );
 		this._addClass( this.tabs, "ui-tabs-tab", "ui-state-default" );
 
 		this.anchors = this.tabs.map( function() {
 			return $( "a", this )[ 0 ];
 		} )
 			.attr( {
 				role: "presentation",
 				tabIndex: -1
 			} );
 		this._addClass( this.anchors, "ui-tabs-anchor" );
 
 		this.panels = $();
 
 		this.anchors.each( function( i, anchor ) {
 			var selector, panel, panelId,
 				anchorId = $( anchor ).uniqueId().attr( "id" ),
 				tab = $( anchor ).closest( "li" ),
 				originalAriaControls = tab.attr( "aria-controls" );
 
 			// Inline tab
 			if ( that._isLocal( anchor ) ) {
 				selector = anchor.hash;
 				panelId = selector.substring( 1 );
 				panel = that.element.find( that._sanitizeSelector( selector ) );
 
 			// remote tab
 			} else {
 
 				// If the tab doesn't already have aria-controls,
 				// generate an id by using a throw-away element
 				panelId = tab.attr( "aria-controls" ) || $( {} ).uniqueId()[ 0 ].id;
 				selector = "#" + panelId;
 				panel = that.element.find( selector );
 				if ( !panel.length ) {
 					panel = that._createPanel( panelId );
 					panel.insertAfter( that.panels[ i - 1 ] || that.tablist );
 				}
 				panel.attr( "aria-live", "polite" );
 			}
 
 			if ( panel.length ) {
 				that.panels = that.panels.add( panel );
 			}
 			if ( originalAriaControls ) {
 				tab.data( "ui-tabs-aria-controls", originalAriaControls );
 			}
 			tab.attr( {
 				"aria-controls": panelId,
 				"aria-labelledby": anchorId
 			} );
 			panel.attr( "aria-labelledby", anchorId );
 		} );
 
 		this.panels.attr( "role", "tabpanel" );
 		this._addClass( this.panels, "ui-tabs-panel", "ui-widget-content" );
 
 		// Avoid memory leaks (#10056)
 		if ( prevTabs ) {
 			this._off( prevTabs.not( this.tabs ) );
 			this._off( prevAnchors.not( this.anchors ) );
 			this._off( prevPanels.not( this.panels ) );
 		}
 	},
 
 	// Allow overriding how to find the list for rare usage scenarios (#7715)
 	_getList: function() {
 		return this.tablist || this.element.find( "ol, ul" ).eq( 0 );
 	},
 
 	_createPanel: function( id ) {
 		return $( "<div>" )
 			.attr( "id", id )
 			.data( "ui-tabs-destroy", true );
 	},
 
 	_setOptionDisabled: function( disabled ) {
 		var currentItem, li, i;
 
 		if ( $.isArray( disabled ) ) {
 			if ( !disabled.length ) {
 				disabled = false;
 			} else if ( disabled.length === this.anchors.length ) {
 				disabled = true;
 			}
 		}
 
 		// Disable tabs
 		for ( i = 0; ( li = this.tabs[ i ] ); i++ ) {
 			currentItem = $( li );
 			if ( disabled === true || $.inArray( i, disabled ) !== -1 ) {
 				currentItem.attr( "aria-disabled", "true" );
 				this._addClass( currentItem, null, "ui-state-disabled" );
 			} else {
 				currentItem.removeAttr( "aria-disabled" );
 				this._removeClass( currentItem, null, "ui-state-disabled" );
 			}
 		}
 
 		this.options.disabled = disabled;
 
 		this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null,
 			disabled === true );
 	},
 
 	_setupEvents: function( event ) {
 		var events = {};
 		if ( event ) {
 			$.each( event.split( " " ), function( index, eventName ) {
 				events[ eventName ] = "_eventHandler";
 			} );
 		}
 
 		this._off( this.anchors.add( this.tabs ).add( this.panels ) );
 
 		// Always prevent the default action, even when disabled
 		this._on( true, this.anchors, {
 			click: function( event ) {
 				event.preventDefault();
 			}
 		} );
 		this._on( this.anchors, events );
 		this._on( this.tabs, { keydown: "_tabKeydown" } );
 		this._on( this.panels, { keydown: "_panelKeydown" } );
 
 		this._focusable( this.tabs );
 		this._hoverable( this.tabs );
 	},
 
 	_setupHeightStyle: function( heightStyle ) {
 		var maxHeight,
 			parent = this.element.parent();
 
 		if ( heightStyle === "fill" ) {
 			maxHeight = parent.height();
 			maxHeight -= this.element.outerHeight() - this.element.height();
 
 			this.element.siblings( ":visible" ).each( function() {
 				var elem = $( this ),
 					position = elem.css( "position" );
 
 				if ( position === "absolute" || position === "fixed" ) {
 					return;
 				}
 				maxHeight -= elem.outerHeight( true );
 			} );
 
 			this.element.children().not( this.panels ).each( function() {
 				maxHeight -= $( this ).outerHeight( true );
 			} );
 
 			this.panels.each( function() {
 				$( this ).height( Math.max( 0, maxHeight -
 					$( this ).innerHeight() + $( this ).height() ) );
 			} )
 				.css( "overflow", "auto" );
 		} else if ( heightStyle === "auto" ) {
 			maxHeight = 0;
 			this.panels.each( function() {
 				maxHeight = Math.max( maxHeight, $( this ).height( "" ).height() );
 			} ).height( maxHeight );
 		}
 	},
 
 	_eventHandler: function( event ) {
 		var options = this.options,
 			active = this.active,
 			anchor = $( event.currentTarget ),
 			tab = anchor.closest( "li" ),
 			clickedIsActive = tab[ 0 ] === active[ 0 ],
 			collapsing = clickedIsActive && options.collapsible,
 			toShow = collapsing ? $() : this._getPanelForTab( tab ),
 			toHide = !active.length ? $() : this._getPanelForTab( active ),
 			eventData = {
 				oldTab: active,
 				oldPanel: toHide,
 				newTab: collapsing ? $() : tab,
 				newPanel: toShow
 			};
 
 		event.preventDefault();
 
 		if ( tab.hasClass( "ui-state-disabled" ) ||
 
 				// tab is already loading
 				tab.hasClass( "ui-tabs-loading" ) ||
 
 				// can't switch durning an animation
 				this.running ||
 
 				// click on active header, but not collapsible
 				( clickedIsActive && !options.collapsible ) ||
 
 				// allow canceling activation
 				( this._trigger( "beforeActivate", event, eventData ) === false ) ) {
 			return;
 		}
 
 		options.active = collapsing ? false : this.tabs.index( tab );
 
 		this.active = clickedIsActive ? $() : tab;
 		if ( this.xhr ) {
 			this.xhr.abort();
 		}
 
 		if ( !toHide.length && !toShow.length ) {
 			$.error( "jQuery UI Tabs: Mismatching fragment identifier." );
 		}
 
 		if ( toShow.length ) {
 			this.load( this.tabs.index( tab ), event );
 		}
 		this._toggle( event, eventData );
 	},
 
 	// Handles show/hide for selecting tabs
 	_toggle: function( event, eventData ) {
 		var that = this,
 			toShow = eventData.newPanel,
 			toHide = eventData.oldPanel;
 
 		this.running = true;
 
 		function complete() {
 			that.running = false;
 			that._trigger( "activate", event, eventData );
 		}
 
 		function show() {
 			that._addClass( eventData.newTab.closest( "li" ), "ui-tabs-active", "ui-state-active" );
 
 			if ( toShow.length && that.options.show ) {
 				that._show( toShow, that.options.show, complete );
 			} else {
 				toShow.show();
 				complete();
 			}
 		}
 
 		// Start out by hiding, then showing, then completing
 		if ( toHide.length && this.options.hide ) {
 			this._hide( toHide, this.options.hide, function() {
 				that._removeClass( eventData.oldTab.closest( "li" ),
 					"ui-tabs-active", "ui-state-active" );
 				show();
 			} );
 		} else {
 			this._removeClass( eventData.oldTab.closest( "li" ),
 				"ui-tabs-active", "ui-state-active" );
 			toHide.hide();
 			show();
 		}
 
 		toHide.attr( "aria-hidden", "true" );
 		eventData.oldTab.attr( {
 			"aria-selected": "false",
 			"aria-expanded": "false"
 		} );
 
 		// If we're switching tabs, remove the old tab from the tab order.
 		// If we're opening from collapsed state, remove the previous tab from the tab order.
 		// If we're collapsing, then keep the collapsing tab in the tab order.
 		if ( toShow.length && toHide.length ) {
 			eventData.oldTab.attr( "tabIndex", -1 );
 		} else if ( toShow.length ) {
 			this.tabs.filter( function() {
 				return $( this ).attr( "tabIndex" ) === 0;
 			} )
 				.attr( "tabIndex", -1 );
 		}
 
 		toShow.attr( "aria-hidden", "false" );
 		eventData.newTab.attr( {
 			"aria-selected": "true",
 			"aria-expanded": "true",
 			tabIndex: 0
 		} );
 	},
 
 	_activate: function( index ) {
 		var anchor,
 			active = this._findActive( index );
 
 		// Trying to activate the already active panel
 		if ( active[ 0 ] === this.active[ 0 ] ) {
 			return;
 		}
 
 		// Trying to collapse, simulate a click on the current active header
 		if ( !active.length ) {
 			active = this.active;
 		}
 
 		anchor = active.find( ".ui-tabs-anchor" )[ 0 ];
 		this._eventHandler( {
 			target: anchor,
 			currentTarget: anchor,
 			preventDefault: $.noop
 		} );
 	},
 
 	_findActive: function( index ) {
 		return index === false ? $() : this.tabs.eq( index );
 	},
 
 	_getIndex: function( index ) {
 
 		// meta-function to give users option to provide a href string instead of a numerical index.
 		if ( typeof index === "string" ) {
 			index = this.anchors.index( this.anchors.filter( "[href$='" +
 				$.ui.escapeSelector( index ) + "']" ) );
 		}
 
 		return index;
 	},
 
 	_destroy: function() {
 		if ( this.xhr ) {
 			this.xhr.abort();
 		}
 
 		this.tablist
 			.removeAttr( "role" )
 			.off( this.eventNamespace );
 
 		this.anchors
 			.removeAttr( "role tabIndex" )
 			.removeUniqueId();
 
 		this.tabs.add( this.panels ).each( function() {
 			if ( $.data( this, "ui-tabs-destroy" ) ) {
 				$( this ).remove();
 			} else {
 				$( this ).removeAttr( "role tabIndex " +
 					"aria-live aria-busy aria-selected aria-labelledby aria-hidden aria-expanded" );
 			}
 		} );
 
 		this.tabs.each( function() {
 			var li = $( this ),
 				prev = li.data( "ui-tabs-aria-controls" );
 			if ( prev ) {
 				li
 					.attr( "aria-controls", prev )
 					.removeData( "ui-tabs-aria-controls" );
 			} else {
 				li.removeAttr( "aria-controls" );
 			}
 		} );
 
 		this.panels.show();
 
 		if ( this.options.heightStyle !== "content" ) {
 			this.panels.css( "height", "" );
 		}
 	},
 
 	enable: function( index ) {
 		var disabled = this.options.disabled;
 		if ( disabled === false ) {
 			return;
 		}
 
 		if ( index === undefined ) {
 			disabled = false;
 		} else {
 			index = this._getIndex( index );
 			if ( $.isArray( disabled ) ) {
 				disabled = $.map( disabled, function( num ) {
 					return num !== index ? num : null;
 				} );
 			} else {
 				disabled = $.map( this.tabs, function( li, num ) {
 					return num !== index ? num : null;
 				} );
 			}
 		}
 		this._setOptionDisabled( disabled );
 	},
 
 	disable: function( index ) {
 		var disabled = this.options.disabled;
 		if ( disabled === true ) {
 			return;
 		}
 
 		if ( index === undefined ) {
 			disabled = true;
 		} else {
 			index = this._getIndex( index );
 			if ( $.inArray( index, disabled ) !== -1 ) {
 				return;
 			}
 			if ( $.isArray( disabled ) ) {
 				disabled = $.merge( [ index ], disabled ).sort();
 			} else {
 				disabled = [ index ];
 			}
 		}
 		this._setOptionDisabled( disabled );
 	},
 
 	load: function( index, event ) {
 		index = this._getIndex( index );
 		var that = this,
 			tab = this.tabs.eq( index ),
 			anchor = tab.find( ".ui-tabs-anchor" ),
 			panel = this._getPanelForTab( tab ),
 			eventData = {
 				tab: tab,
 				panel: panel
 			},
 			complete = function( jqXHR, status ) {
 				if ( status === "abort" ) {
 					that.panels.stop( false, true );
 				}
 
 				that._removeClass( tab, "ui-tabs-loading" );
 				panel.removeAttr( "aria-busy" );
 
 				if ( jqXHR === that.xhr ) {
 					delete that.xhr;
 				}
 			};
 
 		// Not remote
 		if ( this._isLocal( anchor[ 0 ] ) ) {
 			return;
 		}
 
 		this.xhr = $.ajax( this._ajaxSettings( anchor, event, eventData ) );
 
 		// Support: jQuery <1.8
 		// jQuery <1.8 returns false if the request is canceled in beforeSend,
 		// but as of 1.8, $.ajax() always returns a jqXHR object.
 		if ( this.xhr && this.xhr.statusText !== "canceled" ) {
 			this._addClass( tab, "ui-tabs-loading" );
 			panel.attr( "aria-busy", "true" );
 
 			this.xhr
 				.done( function( response, status, jqXHR ) {
 
 					// support: jQuery <1.8
 					// http://bugs.jquery.com/ticket/11778
 					setTimeout( function() {
 						panel.html( response );
 						that._trigger( "load", event, eventData );
 
 						complete( jqXHR, status );
 					}, 1 );
 				} )
 				.fail( function( jqXHR, status ) {
 
 					// support: jQuery <1.8
 					// http://bugs.jquery.com/ticket/11778
 					setTimeout( function() {
 						complete( jqXHR, status );
 					}, 1 );
 				} );
 		}
 	},
 
 	_ajaxSettings: function( anchor, event, eventData ) {
 		var that = this;
 		return {
 
 			// Support: IE <11 only
 			// Strip any hash that exists to prevent errors with the Ajax request
 			url: anchor.attr( "href" ).replace( /#.*$/, "" ),
 			beforeSend: function( jqXHR, settings ) {
 				return that._trigger( "beforeLoad", event,
 					$.extend( { jqXHR: jqXHR, ajaxSettings: settings }, eventData ) );
 			}
 		};
 	},
 
 	_getPanelForTab: function( tab ) {
 		var id = $( tab ).attr( "aria-controls" );
 		return this.element.find( this._sanitizeSelector( "#" + id ) );
 	}
 } );
 
 // DEPRECATED
 // TODO: Switch return back to widget declaration at top of file when this is removed
 if ( $.uiBackCompat !== false ) {
 
 	// Backcompat for ui-tab class (now ui-tabs-tab)
 	$.widget( "ui.tabs", $.ui.tabs, {
 		_processTabs: function() {
 			this._superApply( arguments );
 			this._addClass( this.tabs, "ui-tab" );
 		}
 	} );
 }
 
 return $.ui.tabs;
 
 } ) );