/*!

* jQuery UI Menu 1.11.4
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*
* http://api.jqueryui.com/menu/
*/

(function( factory ) {

if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define([
                "jquery",
                "./core",
                "./widget",
                "./position"
        ], factory );
} else {

        // Browser globals
        factory( jQuery );
}

}(function( $ ) {

return $.widget( “ui.menu”, {

version: "1.11.4",
defaultElement: "<ul>",
delay: 300,
options: {
        icons: {
                submenu: "ui-icon-carat-1-e"
        },
        items: "> *",
        menus: "ul",
        position: {
                my: "left-1 top",
                at: "right top"
        },
        role: "menu",

        // callbacks
        blur: null,
        focus: null,
        select: null
},

_create: function() {
        this.activeMenu = this.element;

        // Flag used to prevent firing of the click handler
        // as the event bubbles up through nested menus
        this.mouseHandled = false;
        this.element
                .uniqueId()
                .addClass( "ui-menu ui-widget ui-widget-content" )
                .toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length )
                .attr({
                        role: this.options.role,
                        tabIndex: 0
                });

        if ( this.options.disabled ) {
                this.element
                        .addClass( "ui-state-disabled" )
                        .attr( "aria-disabled", "true" );
        }

        this._on({
                // Prevent focus from sticking to links inside menu after clicking
                // them (focus should always stay on UL during navigation).
                "mousedown .ui-menu-item": function( event ) {
                        event.preventDefault();
                },
                "click .ui-menu-item": function( event ) {
                        var target = $( event.target );
                        if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
                                this.select( event );

                                // Only set the mouseHandled flag if the event will bubble, see #9469.
                                if ( !event.isPropagationStopped() ) {
                                        this.mouseHandled = true;
                                }

                                // Open submenu on click
                                if ( target.has( ".ui-menu" ).length ) {
                                        this.expand( event );
                                } else if ( !this.element.is( ":focus" ) && $( this.document[ 0 ].activeElement ).closest( ".ui-menu" ).length ) {

                                        // Redirect focus to the menu
                                        this.element.trigger( "focus", [ true ] );

                                        // If the active item is on the top level, let it stay active.
                                        // Otherwise, blur the active item since it is no longer visible.
                                        if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
                                                clearTimeout( this.timer );
                                        }
                                }
                        }
                },
                "mouseenter .ui-menu-item": function( event ) {
                        // Ignore mouse events while typeahead is active, see #10458.
                        // Prevents focusing the wrong item when typeahead causes a scroll while the mouse
                        // is over an item in the menu
                        if ( this.previousFilter ) {
                                return;
                        }
                        var target = $( event.currentTarget );
                        // Remove ui-state-active class from siblings of the newly focused menu item
                        // to avoid a jump caused by adjacent elements both having a class with a border
                        target.siblings( ".ui-state-active" ).removeClass( "ui-state-active" );
                        this.focus( event, target );
                },
                mouseleave: "collapseAll",
                "mouseleave .ui-menu": "collapseAll",
                focus: function( event, keepActiveItem ) {
                        // If there's already an active item, keep it active
                        // If not, activate the first item
                        var item = this.active || this.element.find( this.options.items ).eq( 0 );

                        if ( !keepActiveItem ) {
                                this.focus( event, item );
                        }
                },
                blur: function( event ) {
                        this._delay(function() {
                                if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
                                        this.collapseAll( event );
                                }
                        });
                },
                keydown: "_keydown"
        });

        this.refresh();

        // Clicks outside of a menu collapse any open menus
        this._on( this.document, {
                click: function( event ) {
                        if ( this._closeOnDocumentClick( event ) ) {
                                this.collapseAll( event );
                        }

                        // Reset the mouseHandled flag
                        this.mouseHandled = false;
                }
        });
},

_destroy: function() {
        // Destroy (sub)menus
        this.element
                .removeAttr( "aria-activedescendant" )
                .find( ".ui-menu" ).addBack()
                        .removeClass( "ui-menu ui-widget ui-widget-content ui-menu-icons ui-front" )
                        .removeAttr( "role" )
                        .removeAttr( "tabIndex" )
                        .removeAttr( "aria-labelledby" )
                        .removeAttr( "aria-expanded" )
                        .removeAttr( "aria-hidden" )
                        .removeAttr( "aria-disabled" )
                        .removeUniqueId()
                        .show();

        // Destroy menu items
        this.element.find( ".ui-menu-item" )
                .removeClass( "ui-menu-item" )
                .removeAttr( "role" )
                .removeAttr( "aria-disabled" )
                .removeUniqueId()
                .removeClass( "ui-state-hover" )
                .removeAttr( "tabIndex" )
                .removeAttr( "role" )
                .removeAttr( "aria-haspopup" )
                .children().each( function() {
                        var elem = $( this );
                        if ( elem.data( "ui-menu-submenu-carat" ) ) {
                                elem.remove();
                        }
                });

        // Destroy menu dividers
        this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
},

_keydown: function( event ) {
        var match, prev, character, skip,
                preventDefault = true;

        switch ( event.keyCode ) {
        case $.ui.keyCode.PAGE_UP:
                this.previousPage( event );
                break;
        case $.ui.keyCode.PAGE_DOWN:
                this.nextPage( event );
                break;
        case $.ui.keyCode.HOME:
                this._move( "first", "first", event );
                break;
        case $.ui.keyCode.END:
                this._move( "last", "last", event );
                break;
        case $.ui.keyCode.UP:
                this.previous( event );
                break;
        case $.ui.keyCode.DOWN:
                this.next( event );
                break;
        case $.ui.keyCode.LEFT:
                this.collapse( event );
                break;
        case $.ui.keyCode.RIGHT:
                if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
                        this.expand( event );
                }
                break;
        case $.ui.keyCode.ENTER:
        case $.ui.keyCode.SPACE:
                this._activate( event );
                break;
        case $.ui.keyCode.ESCAPE:
                this.collapse( event );
                break;
        default:
                preventDefault = false;
                prev = this.previousFilter || "";
                character = String.fromCharCode( event.keyCode );
                skip = false;

                clearTimeout( this.filterTimer );

                if ( character === prev ) {
                        skip = true;
                } else {
                        character = prev + character;
                }

                match = this._filterMenuItems( character );
                match = skip && match.index( this.active.next() ) !== -1 ?
                        this.active.nextAll( ".ui-menu-item" ) :
                        match;

                // If no matches on the current filter, reset to the last character pressed
                // to move down the menu to the first item that starts with that character
                if ( !match.length ) {
                        character = String.fromCharCode( event.keyCode );
                        match = this._filterMenuItems( character );
                }

                if ( match.length ) {
                        this.focus( event, match );
                        this.previousFilter = character;
                        this.filterTimer = this._delay(function() {
                                delete this.previousFilter;
                        }, 1000 );
                } else {
                        delete this.previousFilter;
                }
        }

        if ( preventDefault ) {
                event.preventDefault();
        }
},

_activate: function( event ) {
        if ( !this.active.is( ".ui-state-disabled" ) ) {
                if ( this.active.is( "[aria-haspopup='true']" ) ) {
                        this.expand( event );
                } else {
                        this.select( event );
                }
        }
},

refresh: function() {
        var menus, items,
                that = this,
                icon = this.options.icons.submenu,
                submenus = this.element.find( this.options.menus );

        this.element.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length );

        // Initialize nested menus
        submenus.filter( ":not(.ui-menu)" )
                .addClass( "ui-menu ui-widget ui-widget-content ui-front" )
                .hide()
                .attr({
                        role: this.options.role,
                        "aria-hidden": "true",
                        "aria-expanded": "false"
                })
                .each(function() {
                        var menu = $( this ),
                                item = menu.parent(),
                                submenuCarat = $( "<span>" )
                                        .addClass( "ui-menu-icon ui-icon " + icon )
                                        .data( "ui-menu-submenu-carat", true );

                        item
                                .attr( "aria-haspopup", "true" )
                                .prepend( submenuCarat );
                        menu.attr( "aria-labelledby", item.attr( "id" ) );
                });

        menus = submenus.add( this.element );
        items = menus.find( this.options.items );

        // Initialize menu-items containing spaces and/or dashes only as dividers
        items.not( ".ui-menu-item" ).each(function() {
                var item = $( this );
                if ( that._isDivider( item ) ) {
                        item.addClass( "ui-widget-content ui-menu-divider" );
                }
        });

        // Don't refresh list items that are already adapted
        items.not( ".ui-menu-item, .ui-menu-divider" )
                .addClass( "ui-menu-item" )
                .uniqueId()
                .attr({
                        tabIndex: -1,
                        role: this._itemRole()
                });

        // Add aria-disabled attribute to any disabled menu item
        items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );

        // If the active item has been removed, blur the menu
        if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
                this.blur();
        }
},

_itemRole: function() {
        return {
                menu: "menuitem",
                listbox: "option"
        }[ this.options.role ];
},

_setOption: function( key, value ) {
        if ( key === "icons" ) {
                this.element.find( ".ui-menu-icon" )
                        .removeClass( this.options.icons.submenu )
                        .addClass( value.submenu );
        }
        if ( key === "disabled" ) {
                this.element
                        .toggleClass( "ui-state-disabled", !!value )
                        .attr( "aria-disabled", value );
        }
        this._super( key, value );
},

focus: function( event, item ) {
        var nested, focused;
        this.blur( event, event && event.type === "focus" );

        this._scrollIntoView( item );

        this.active = item.first();
        focused = this.active.addClass( "ui-state-focus" ).removeClass( "ui-state-active" );
        // Only update aria-activedescendant if there's a role
        // otherwise we assume focus is managed elsewhere
        if ( this.options.role ) {
                this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
        }

        // Highlight active parent menu item, if any
        this.active
                .parent()
                .closest( ".ui-menu-item" )
                .addClass( "ui-state-active" );

        if ( event && event.type === "keydown" ) {
                this._close();
        } else {
                this.timer = this._delay(function() {
                        this._close();
                }, this.delay );
        }

        nested = item.children( ".ui-menu" );
        if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
                this._startOpening(nested);
        }
        this.activeMenu = item.parent();

        this._trigger( "focus", event, { item: item } );
},

_scrollIntoView: function( item ) {
        var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
        if ( this._hasScroll() ) {
                borderTop = parseFloat( $.css( this.activeMenu[0], "borderTopWidth" ) ) || 0;
                paddingTop = parseFloat( $.css( this.activeMenu[0], "paddingTop" ) ) || 0;
                offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
                scroll = this.activeMenu.scrollTop();
                elementHeight = this.activeMenu.height();
                itemHeight = item.outerHeight();

                if ( offset < 0 ) {
                        this.activeMenu.scrollTop( scroll + offset );
                } else if ( offset + itemHeight > elementHeight ) {
                        this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
                }
        }
},

blur: function( event, fromFocus ) {
        if ( !fromFocus ) {
                clearTimeout( this.timer );
        }

        if ( !this.active ) {
                return;
        }

        this.active.removeClass( "ui-state-focus" );
        this.active = null;

        this._trigger( "blur", event, { item: this.active } );
},

_startOpening: function( submenu ) {
        clearTimeout( this.timer );

        // Don't open if already open fixes a Firefox bug that caused a .5 pixel
        // shift in the submenu position when mousing over the carat icon
        if ( submenu.attr( "aria-hidden" ) !== "true" ) {
                return;
        }

        this.timer = this._delay(function() {
                this._close();
                this._open( submenu );
        }, this.delay );
},

_open: function( submenu ) {
        var position = $.extend({
                of: this.active
        }, this.options.position );

        clearTimeout( this.timer );
        this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
                .hide()
                .attr( "aria-hidden", "true" );

        submenu
                .show()
                .removeAttr( "aria-hidden" )
                .attr( "aria-expanded", "true" )
                .position( position );
},

collapseAll: function( event, all ) {
        clearTimeout( this.timer );
        this.timer = this._delay(function() {
                // If we were passed an event, look for the submenu that contains the event
                var currentMenu = all ? this.element :
                        $( event && event.target ).closest( this.element.find( ".ui-menu" ) );

                // If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
                if ( !currentMenu.length ) {
                        currentMenu = this.element;
                }

                this._close( currentMenu );

                this.blur( event );
                this.activeMenu = currentMenu;
        }, this.delay );
},

// With no arguments, closes the currently active menu - if nothing is active
// it closes all menus.  If passed an argument, it will search for menus BELOW
_close: function( startMenu ) {
        if ( !startMenu ) {
                startMenu = this.active ? this.active.parent() : this.element;
        }

        startMenu
                .find( ".ui-menu" )
                        .hide()
                        .attr( "aria-hidden", "true" )
                        .attr( "aria-expanded", "false" )
                .end()
                .find( ".ui-state-active" ).not( ".ui-state-focus" )
                        .removeClass( "ui-state-active" );
},

_closeOnDocumentClick: function( event ) {
        return !$( event.target ).closest( ".ui-menu" ).length;
},

_isDivider: function( item ) {

        // Match hyphen, em dash, en dash
        return !/[^\-\u2014\u2013\s]/.test( item.text() );
},

collapse: function( event ) {
        var newItem = this.active &&
                this.active.parent().closest( ".ui-menu-item", this.element );
        if ( newItem && newItem.length ) {
                this._close();
                this.focus( event, newItem );
        }
},

expand: function( event ) {
        var newItem = this.active &&
                this.active
                        .children( ".ui-menu " )
                        .find( this.options.items )
                        .first();

        if ( newItem && newItem.length ) {
                this._open( newItem.parent() );

                // Delay so Firefox will not hide activedescendant change in expanding submenu from AT
                this._delay(function() {
                        this.focus( event, newItem );
                });
        }
},

next: function( event ) {
        this._move( "next", "first", event );
},

previous: function( event ) {
        this._move( "prev", "last", event );
},

isFirstItem: function() {
        return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
},

isLastItem: function() {
        return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
},

_move: function( direction, filter, event ) {
        var next;
        if ( this.active ) {
                if ( direction === "first" || direction === "last" ) {
                        next = this.active
                                [ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
                                .eq( -1 );
                } else {
                        next = this.active
                                [ direction + "All" ]( ".ui-menu-item" )
                                .eq( 0 );
                }
        }
        if ( !next || !next.length || !this.active ) {
                next = this.activeMenu.find( this.options.items )[ filter ]();
        }

        this.focus( event, next );
},

nextPage: function( event ) {
        var item, base, height;

        if ( !this.active ) {
                this.next( event );
                return;
        }
        if ( this.isLastItem() ) {
                return;
        }
        if ( this._hasScroll() ) {
                base = this.active.offset().top;
                height = this.element.height();
                this.active.nextAll( ".ui-menu-item" ).each(function() {
                        item = $( this );
                        return item.offset().top - base - height < 0;
                });

                this.focus( event, item );
        } else {
                this.focus( event, this.activeMenu.find( this.options.items )
                        [ !this.active ? "first" : "last" ]() );
        }
},

previousPage: function( event ) {
        var item, base, height;
        if ( !this.active ) {
                this.next( event );
                return;
        }
        if ( this.isFirstItem() ) {
                return;
        }
        if ( this._hasScroll() ) {
                base = this.active.offset().top;
                height = this.element.height();
                this.active.prevAll( ".ui-menu-item" ).each(function() {
                        item = $( this );
                        return item.offset().top - base + height > 0;
                });

                this.focus( event, item );
        } else {
                this.focus( event, this.activeMenu.find( this.options.items ).first() );
        }
},

_hasScroll: function() {
        return this.element.outerHeight() < this.element.prop( "scrollHeight" );
},

select: function( event ) {
        // TODO: It should never be possible to not have an active item at this
        // point, but the tests don't trigger mouseenter before click.
        this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
        var ui = { item: this.active };
        if ( !this.active.has( ".ui-menu" ).length ) {
                this.collapseAll( event, true );
        }
        this._trigger( "select", event, ui );
},

_filterMenuItems: function(character) {
        var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ),
                regex = new RegExp( "^" + escapedCharacter, "i" );

        return this.activeMenu
                .find( this.options.items )

                // Only match on items, not dividers or other content (#10571)
                .filter( ".ui-menu-item" )
                .filter(function() {
                        return regex.test( $.trim( $( this ).text() ) );
                });
}

});

}));