AngularJS Directive to Validate Field After User Has Left It

directive_isFocused

App.directive('isFocused', function(){
    var isFocused = {
        restrict: 'A',
        scope: {
            model: '=isFocused'
        },
        link: function(scope, element, attrs) {
            scope.model = false;

            element.focus(function(){
                scope.model = true;
                scope.$apply();
            });

            element.blur(function(){
                scope.model = false;
                scope.$apply();
            });
        }
    }
    return isFocused;
});