corrade-http-templates – Rev 42

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/*!
 * 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",
                        "../escape-selector",
                        "../keycode",
                        "../safe-active-element",
                        "../unique-id",
                        "../version",
                        "../widget"
                ], 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;

} ) );