/*!

 * jQuery UI Selectmenu 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/selectmenu

 */

(function( factory ) {

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



		// AMD. Register as an anonymous module.

		define([

			"jquery",

			"./core",

			"./widget",

			"./position",

			"./menu"

		], factory );

	} else {



		// Browser globals

		factory( jQuery );

	}

}(function( $ ) {



return $.widget( "ui.selectmenu", {

	version: "1.11.4",

	defaultElement: "<select>",

	options: {

		appendTo: null,

		disabled: null,

		icons: {

			button: "ui-icon-triangle-1-s"

		},

		position: {

			my: "left top",

			at: "left bottom",

			collision: "none"

		},

		width: null,



		// callbacks

		change: null,

		close: null,

		focus: null,

		open: null,

		select: null

	},



	_create: function() {

		var selectmenuId = this.element.uniqueId().attr( "id" );

		this.ids = {

			element: selectmenuId,

			button: selectmenuId + "-button",

			menu: selectmenuId + "-menu"

		};



		this._drawButton();

		this._drawMenu();



		if ( this.options.disabled ) {

			this.disable();

		}

	},



	_drawButton: function() {

		var that = this;



		// Associate existing label with the new button

		this.label = $( "label[for='" + this.ids.element + "']" ).attr( "for", this.ids.button );

		this._on( this.label, {

			click: function( event ) {

				this.button.focus();

				event.preventDefault();

			}

		});



		// Hide original select element

		this.element.hide();



		// Create button

		this.button = $( "<span>", {

			"class": "ui-selectmenu-button ui-widget ui-state-default ui-corner-all",

			tabindex: this.options.disabled ? -1 : 0,

			id: this.ids.button,

			role: "combobox",

			"aria-expanded": "false",

			"aria-autocomplete": "list",

			"aria-owns": this.ids.menu,

			"aria-haspopup": "true"

		})

			.insertAfter( this.element );



		$( "<span>", {

			"class": "ui-icon " + this.options.icons.button

		})

			.prependTo( this.button );



		this.buttonText = $( "<span>", {

			"class": "ui-selectmenu-text"

		})

			.appendTo( this.button );



		this._setText( this.buttonText, this.element.find( "option:selected" ).text() );

		this._resizeButton();



		this._on( this.button, this._buttonEvents );

		this.button.one( "focusin", function() {



			// Delay rendering the menu items until the button receives focus.

			// The menu may have already been rendered via a programmatic open.

			if ( !that.menuItems ) {

				that._refreshMenu();

			}

		});

		this._hoverable( this.button );

		this._focusable( this.button );

	},



	_drawMenu: function() {

		var that = this;



		// Create menu

		this.menu = $( "<ul>", {

			"aria-hidden": "true",

			"aria-labelledby": this.ids.button,

			id: this.ids.menu

		});



		// Wrap menu

		this.menuWrap = $( "<div>", {

			"class": "ui-selectmenu-menu ui-front"

		})

			.append( this.menu )

			.appendTo( this._appendTo() );



		// Initialize menu widget

		this.menuInstance = this.menu

			.menu({

				role: "listbox",

				select: function( event, ui ) {

					event.preventDefault();



					// support: IE8

					// If the item was selected via a click, the text selection

					// will be destroyed in IE

					that._setSelection();



					that._select( ui.item.data( "ui-selectmenu-item" ), event );

				},

				focus: function( event, ui ) {

					var item = ui.item.data( "ui-selectmenu-item" );



					// Prevent inital focus from firing and check if its a newly focused item

					if ( that.focusIndex != null && item.index !== that.focusIndex ) {

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

						if ( !that.isOpen ) {

							that._select( item, event );

						}

					}

					that.focusIndex = item.index;



					that.button.attr( "aria-activedescendant",

						that.menuItems.eq( item.index ).attr( "id" ) );

				}

			})

			.menu( "instance" );



		// Adjust menu styles to dropdown

		this.menu

			.addClass( "ui-corner-bottom" )

			.removeClass( "ui-corner-all" );



		// Don't close the menu on mouseleave

		this.menuInstance._off( this.menu, "mouseleave" );



		// Cancel the menu's collapseAll on document click

		this.menuInstance._closeOnDocumentClick = function() {

			return false;

		};



		// Selects often contain empty items, but never contain dividers

		this.menuInstance._isDivider = function() {

			return false;

		};

	},



	refresh: function() {

		this._refreshMenu();

		this._setText( this.buttonText, this._getSelectedItem().text() );

		if ( !this.options.width ) {

			this._resizeButton();

		}

	},



	_refreshMenu: function() {

		this.menu.empty();



		var item,

			options = this.element.find( "option" );



		if ( !options.length ) {

			return;

		}



		this._parseOptions( options );

		this._renderMenu( this.menu, this.items );



		this.menuInstance.refresh();

		this.menuItems = this.menu.find( "li" ).not( ".ui-selectmenu-optgroup" );



		item = this._getSelectedItem();



		// Update the menu to have the correct item focused

		this.menuInstance.focus( null, item );

		this._setAria( item.data( "ui-selectmenu-item" ) );



		// Set disabled state

		this._setOption( "disabled", this.element.prop( "disabled" ) );

	},



	open: function( event ) {

		if ( this.options.disabled ) {

			return;

		}



		// If this is the first time the menu is being opened, render the items

		if ( !this.menuItems ) {

			this._refreshMenu();

		} else {



			// Menu clears focus on close, reset focus to selected item

			this.menu.find( ".ui-state-focus" ).removeClass( "ui-state-focus" );

			this.menuInstance.focus( null, this._getSelectedItem() );

		}



		this.isOpen = true;

		this._toggleAttr();

		this._resizeMenu();

		this._position();



		this._on( this.document, this._documentClick );



		this._trigger( "open", event );

	},



	_position: function() {

		this.menuWrap.position( $.extend( { of: this.button }, this.options.position ) );

	},



	close: function( event ) {

		if ( !this.isOpen ) {

			return;

		}



		this.isOpen = false;

		this._toggleAttr();



		this.range = null;

		this._off( this.document );



		this._trigger( "close", event );

	},



	widget: function() {

		return this.button;

	},



	menuWidget: function() {

		return this.menu;

	},



	_renderMenu: function( ul, items ) {

		var that = this,

			currentOptgroup = "";



		$.each( items, function( index, item ) {

			if ( item.optgroup !== currentOptgroup ) {

				$( "<li>", {

					"class": "ui-selectmenu-optgroup ui-menu-divider" +

						( item.element.parent( "optgroup" ).prop( "disabled" ) ?

							" ui-state-disabled" :

							"" ),

					text: item.optgroup

				})

					.appendTo( ul );



				currentOptgroup = item.optgroup;

			}



			that._renderItemData( ul, item );

		});

	},



	_renderItemData: function( ul, item ) {

		return this._renderItem( ul, item ).data( "ui-selectmenu-item", item );

	},



	_renderItem: function( ul, item ) {

		var li = $( "<li>" );



		if ( item.disabled ) {

			li.addClass( "ui-state-disabled" );

		}

		this._setText( li, item.label );



		return li.appendTo( ul );

	},



	_setText: function( element, value ) {

		if ( value ) {

			element.text( value );

		} else {

			element.html( "&#160;" );

		}

	},



	_move: function( direction, event ) {

		var item, next,

			filter = ".ui-menu-item";



		if ( this.isOpen ) {

			item = this.menuItems.eq( this.focusIndex );

		} else {

			item = this.menuItems.eq( this.element[ 0 ].selectedIndex );

			filter += ":not(.ui-state-disabled)";

		}



		if ( direction === "first" || direction === "last" ) {

			next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 );

		} else {

			next = item[ direction + "All" ]( filter ).eq( 0 );

		}



		if ( next.length ) {

			this.menuInstance.focus( event, next );

		}

	},



	_getSelectedItem: function() {

		return this.menuItems.eq( this.element[ 0 ].selectedIndex );

	},



	_toggle: function( event ) {

		this[ this.isOpen ? "close" : "open" ]( event );

	},



	_setSelection: function() {

		var selection;



		if ( !this.range ) {

			return;

		}



		if ( window.getSelection ) {

			selection = window.getSelection();

			selection.removeAllRanges();

			selection.addRange( this.range );



		// support: IE8

		} else {

			this.range.select();

		}



		// support: IE

		// Setting the text selection kills the button focus in IE, but

		// restoring the focus doesn't kill the selection.

		this.button.focus();

	},



	_documentClick: {

		mousedown: function( event ) {

			if ( !this.isOpen ) {

				return;

			}



			if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" + this.ids.button ).length ) {

				this.close( event );

			}

		}

	},



	_buttonEvents: {



		// Prevent text selection from being reset when interacting with the selectmenu (#10144)

		mousedown: function() {

			var selection;



			if ( window.getSelection ) {

				selection = window.getSelection();

				if ( selection.rangeCount ) {

					this.range = selection.getRangeAt( 0 );

				}



			// support: IE8

			} else {

				this.range = document.selection.createRange();

			}

		},



		click: function( event ) {

			this._setSelection();

			this._toggle( event );

		},



		keydown: function( event ) {

			var preventDefault = true;

			switch ( event.keyCode ) {

				case $.ui.keyCode.TAB:

				case $.ui.keyCode.ESCAPE:

					this.close( event );

					preventDefault = false;

					break;

				case $.ui.keyCode.ENTER:

					if ( this.isOpen ) {

						this._selectFocusedItem( event );

					}

					break;

				case $.ui.keyCode.UP:

					if ( event.altKey ) {

						this._toggle( event );

					} else {

						this._move( "prev", event );

					}

					break;

				case $.ui.keyCode.DOWN:

					if ( event.altKey ) {

						this._toggle( event );

					} else {

						this._move( "next", event );

					}

					break;

				case $.ui.keyCode.SPACE:

					if ( this.isOpen ) {

						this._selectFocusedItem( event );

					} else {

						this._toggle( event );

					}

					break;

				case $.ui.keyCode.LEFT:

					this._move( "prev", event );

					break;

				case $.ui.keyCode.RIGHT:

					this._move( "next", event );

					break;

				case $.ui.keyCode.HOME:

				case $.ui.keyCode.PAGE_UP:

					this._move( "first", event );

					break;

				case $.ui.keyCode.END:

				case $.ui.keyCode.PAGE_DOWN:

					this._move( "last", event );

					break;

				default:

					this.menu.trigger( event );

					preventDefault = false;

			}



			if ( preventDefault ) {

				event.preventDefault();

			}

		}

	},



	_selectFocusedItem: function( event ) {

		var item = this.menuItems.eq( this.focusIndex );

		if ( !item.hasClass( "ui-state-disabled" ) ) {

			this._select( item.data( "ui-selectmenu-item" ), event );

		}

	},



	_select: function( item, event ) {

		var oldIndex = this.element[ 0 ].selectedIndex;



		// Change native select element

		this.element[ 0 ].selectedIndex = item.index;

		this._setText( this.buttonText, item.label );

		this._setAria( item );

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



		if ( item.index !== oldIndex ) {

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

		}



		this.close( event );

	},



	_setAria: function( item ) {

		var id = this.menuItems.eq( item.index ).attr( "id" );



		this.button.attr({

			"aria-labelledby": id,

			"aria-activedescendant": id

		});

		this.menu.attr( "aria-activedescendant", id );

	},



	_setOption: function( key, value ) {

		if ( key === "icons" ) {

			this.button.find( "span.ui-icon" )

				.removeClass( this.options.icons.button )

				.addClass( value.button );

		}



		this._super( key, value );



		if ( key === "appendTo" ) {

			this.menuWrap.appendTo( this._appendTo() );

		}



		if ( key === "disabled" ) {

			this.menuInstance.option( "disabled", value );

			this.button

				.toggleClass( "ui-state-disabled", value )

				.attr( "aria-disabled", value );



			this.element.prop( "disabled", value );

			if ( value ) {

				this.button.attr( "tabindex", -1 );

				this.close();

			} else {

				this.button.attr( "tabindex", 0 );

			}

		}



		if ( key === "width" ) {

			this._resizeButton();

		}

	},



	_appendTo: function() {

		var element = this.options.appendTo;



		if ( element ) {

			element = element.jquery || element.nodeType ?

				$( element ) :

				this.document.find( element ).eq( 0 );

		}



		if ( !element || !element[ 0 ] ) {

			element = this.element.closest( ".ui-front" );

		}



		if ( !element.length ) {

			element = this.document[ 0 ].body;

		}



		return element;

	},



	_toggleAttr: function() {

		this.button

			.toggleClass( "ui-corner-top", this.isOpen )

			.toggleClass( "ui-corner-all", !this.isOpen )

			.attr( "aria-expanded", this.isOpen );

		this.menuWrap.toggleClass( "ui-selectmenu-open", this.isOpen );

		this.menu.attr( "aria-hidden", !this.isOpen );

	},



	_resizeButton: function() {

		var width = this.options.width;



		if ( !width ) {

			width = this.element.show().outerWidth();

			this.element.hide();

		}



		this.button.outerWidth( width );

	},



	_resizeMenu: function() {

		this.menu.outerWidth( Math.max(

			this.button.outerWidth(),



			// support: IE10

			// IE10 wraps long text (possibly a rounding bug)

			// so we add 1px to avoid the wrapping

			this.menu.width( "" ).outerWidth() + 1

		) );

	},



	_getCreateOptions: function() {

		return { disabled: this.element.prop( "disabled" ) };

	},



	_parseOptions: function( options ) {

		var data = [];

		options.each(function( index, item ) {

			var option = $( item ),

				optgroup = option.parent( "optgroup" );

			data.push({

				element: option,

				index: index,

				value: option.val(),

				label: option.text(),

				optgroup: optgroup.attr( "label" ) || "",

				disabled: optgroup.prop( "disabled" ) || option.prop( "disabled" )

			});

		});

		this.items = data;

	},



	_destroy: function() {

		this.menuWrap.remove();

		this.button.remove();

		this.element.show();

		this.element.removeUniqueId();

		this.label.attr( "for", this.ids.element );

	}

});



}));

