Angular directive that toggles a class on an element and insures that no other elements have that class

toggle-class-singularly

angular.module("hedge").directive("toggleClassSingularly", function()
{
	return {
		restrict: "A",
		link: function(scope, element, attrs)
		{
			scope.$root.$on("singular-class-toggled", function(event, args)
			{
				if (args.class === attrs.toggleClassSingularly && args.element !== element)
				{
					element.removeClass(args.class);
				}
			});
			element.bind("click", function()
			{
				element.toggleClass(attrs.toggleClassSingularly);
				scope.$root.$broadcast("singular-class-toggled", { class:attrs.toggleClassSingularly, element:element });
			});
		}
	};
});