switch

controllers.controller('TabBarController',function TabBarController ($scope,$log,$http) {

    var tabBarItem =$('#tabBar > .item');
    var chatPanelOpen = false;
    
    tabBarItem.click(function(){
        var tabClass = $(this).data('tab');

        if(!chatPanelOpen){
            $('#wrapper').addClass(tabClass);
            chatPanelOpen = true;
        } else{
            $('#wrapper').removeClass(tabClass);
            chatPanelOpen = false;
        }
    })
})