enter.directive.js

(function (module) {
	'use strict';

	module.directive('ngEnter', function () {
		return function (scope, element, attrs) {
			element.bind("keydown keypress", function (event) {
				if(event.which === 13) {
					scope.$apply(function (){
						scope.$eval(attrs.ngEnter);
					});

					event.preventDefault();
				}
			});
		};
	});

})(angular.module('common'));


// Usage
// <input ng-model="model" ng-enter="func()" />