jquery.menubar.min.js

/*
 * Menubar with ARIA
 * Requires jQuery 1.7
 * @version 1.1
 * @author Anton Ball
 * @license
 */
!function($){"use strict";var MENU_RADIO="radio",MENU_CHECK="checkbox",MENU_DEFAULT="menu",DATA_MENU_TYPE="menuType",DATA_REQUIRED="menuRequired",ARIA_PRESSED="aria-pressed";var keydownHandler=function(event){var $el=$(event.target),$btns=event.data.$btns,index=$btns.index($el),key=event.which,diff=index+(key===39||key===40?1:key===37||key===38?-1:0);$btns.eq(diff%$btns.length).focus()},clickHandler=function(event){var $target=$(event.currentTarget),selected=$target.attr(ARIA_PRESSED)==="true",isCheckbox=event.data.isCheckbox,isRadio=event.data.isRadio,$menu=event.data.$menu,required=$menu.data().hasOwnProperty(DATA_REQUIRED)?$menu.data(DATA_REQUIRED):isRadio;event.preventDefault();if($target.attr("aria-disabled")==="true"){event.stopImmediatePropagation();return}if(isRadio){if(required&&selected){event.stopImmediatePropagation();return}$menu.find('[aria-pressed="true"]').attr(ARIA_PRESSED,false);$target.attr(ARIA_PRESSED,!selected)}else if(isCheckbox){$target.attr(ARIA_PRESSED,!selected)}$menu.trigger("click")};$.fn.menubar=function(options){var settings=$.extend({selectedClass:"menu-selected",buttonClass:"btn"},options);return this.each(function(){var $this=$(this),$btns=$this.find("."+settings.buttonClass),isRadio,isCheckbox;$this.data(DATA_MENU_TYPE,$this.data(DATA_MENU_TYPE)||MENU_DEFAULT);isRadio=$this.data(DATA_MENU_TYPE)===MENU_RADIO;isCheckbox=$this.data(DATA_MENU_TYPE)===MENU_CHECK;$this.attr({role:"menubar","aria-multiselectable":isCheckbox});if(isRadio||isCheckbox){$btns.attr(ARIA_PRESSED,false);$btns.filter("."+settings.selectedClass+(isRadio?":eq(0)":"")).attr(ARIA_PRESSED,true)}$this.on({keydown:keydownHandler,click:clickHandler},".btn",{$menu:$this,$btns:$btns,isRadio:isRadio,isCheckbox:isCheckbox})})}}(jQuery);