(function(){if(typeof Spry=="undefined"||!Spry.Widget||!Spry.Widget.MenuBar2){alert("Error loading page. Please refresh\nError:SpryMenuBarKeyNavigationPlugin.js requires SpryMenu.js!");return}var KNP=Spry.Widget.MenuBar2.KeyNavigationPlugin={config:{pluginOptionsProp:"KNP",horizontalLayoutMap:{MenuBar:false}},initialize:function(mb){var opts=mb.setOptions({},KNP.config);if(mb[opts.pluginOptionsProp])mb.setOptions(opts,mb[opts.pluginOptionsProp]);mb[opts.pluginOptionsProp]=opts;mb.addObserver(this)},KEY_TAB:9,KEY_ESC:27,KEY_UP:38,KEY_DOWN:40,KEY_LEFT:37,KEY_RIGHT:39,KEY_SPACE:32,getOptions:function(mb){return mb[KNP.config.pluginOptionsProp]},bindEventCBFunc:function(cbName,mb,mi){return function(e){return KNP[cbName](e,mb,mi)}},getIndexOf:function(arr,item){if(arr&&arr.length){for(var i=0;i<arr.length;i++){if(arr[i]==item)return i}}return-1},menuIsHorizontal:function(mb,m){var menuLevel=mb.getMenuLevel(m);var cname=menuLevel?"MenuLevel"+menuLevel:"MenuBar";return KNP.getOptions(mb).horizontalLayoutMap[cname]?true:false},goToMenuItemByOffset:function(mb,mi,offset){var menu=mb.getParentMenuForElement(mi,true);if(menu){var mItems=mb.getMenuItemsForMenu(menu);if(mItems.length){var miIndex=KNP.getIndexOf(mItems,mi);if(miIndex>=0){miIndex+=offset;if(miIndex>=0&&miIndex<mItems.length){mi=mItems[miIndex];KNP.setCurrentMenuItem(mb,mi)}}}}return false},goToNextMenuItem:function(mb,mi){return KNP.goToMenuItemByOffset(mb,mi,1)},goToPreviousMenuItem:function(mb,mi){return KNP.goToMenuItemByOffset(mb,mi,-1)},openMenuItemSubMenu:function(mb,mi){var subMenu=mb.getSubMenuForMenuItem(mi);if(subMenu){var subMI=mb.getMenuItemsForMenu(subMenu)[0];if(subMI)KNP.setCurrentMenuItem(mb,subMI)}},closeParentMenu:function(mb,mi){var menu=mb.getParentMenuForElement(mi,true);if(menu){var parentMI=mb.getMenuItemForSubMenu(menu);var parentMenu=mb.getParentMenuForElement(menu);if(parentMI)KNP.setCurrentMenuItem(mb,parentMI)}},setCurrentMenuItem:function(mb,mi){var cmi=mb.currentMenuItem;if(cmi&&cmi==mi)return;mb.setCurrentMenuItem(mi,true);if(cmi)mb.hideSubMenu(mb.getParentMenuForElement(cmi),mb.getParentMenuForElement(mi));if(mi.focus)mi.focus()},handleKeyDown:function(evt,mb,mi){if(mi!=mb.currentMenuItem)return;var menu=mb.getParentMenuForElement(mi,true);var isHorizontal=KNP.menuIsHorizontal(mb,menu);var result=undefined;switch(evt.keyCode){case KNP.KEY_TAB:case KNP.KEY_ESC:mb.setCurrentMenuItem(null,true);mb.hideSubMenu(mb.getParentMenuForElement(mi));if(mi.blur)mi.blur();if(evt.keyCode!=KNP.KEY_TAB)result=false;break;case KNP.KEY_RIGHT:if(isHorizontal)KNP.goToNextMenuItem(mb,mi);else KNP.openMenuItemSubMenu(mb,mi);result=false;break;case KNP.KEY_LEFT:if(isHorizontal)KNP.goToPreviousMenuItem(mb,mi);else KNP.closeParentMenu(mb,mi);result=false;break;case KNP.KEY_UP:if(isHorizontal)KNP.closeParentMenu(mb,mi);else KNP.goToPreviousMenuItem(mb,mi);result=false;break;case KNP.KEY_DOWN:if(isHorizontal)KNP.openMenuItemSubMenu(mb,mi);else KNP.goToNextMenuItem(mb,mi);result=false;break;case KNP.KEY_SPACE:KNP.openMenuItemSubMenu(mb,mi);result=false;break}return result},handleFocus:function(evt,mb,mi){if(!mb.currentMenuItem)mb.setCurrentMenuItem(mi,true)},onPostTransformMarkup:function(mb,evt){var links=Spry.$$("."+mb.menuItemClass,mb.element);if(links.length){for(var i=0;i<links.length;i++){var l=links[i];l.tabIndex=i?"-1":"0";mb.addEventListener(l,"keydown",KNP.bindEventCBFunc("handleKeyDown",mb,l),false);mb.addEventListener(l,"focus",KNP.bindEventCBFunc("handleFocus",mb,l),false)}}}};Spry.Widget.MenuBar2.config.plugIns.push(Spry.Widget.MenuBar2.KeyNavigationPlugin)})();