How to perform a tabindex on enter key instead of tab button in angular js?

Question

I used this directive from stack overflow but this doesn't work on chosen directive. How can I perform this function on another directive?

module.directive("nextFocus", function () {
    var directive = {
        restrict: 'A',
        link: function (scope, elem, attrs) {
            elem.bind('keydown', function (e) {
                var code = e.keyCode || e.which;
                if (code === 13) {
                    try {
                        if (attrs.tabindex != undefined) {
                            var currentTabIndex = attrs.tabindex;
                            var nextTabIndex = parseInt(attrs.tabindex) + 1;
                            $("[tabindex=" + nextTabIndex + "]").focus();
                        }
                    } catch (e) {

                    }
                }
            });
        }
    };
    return directive;
});