AngularJS Autofocus directive

autofocus.js

/**
 * the HTML5 autofocus property can be finicky when it comes to dynamically loaded
 * templates and such with AngularJS. Use this simple directive to
 * tame this beast once and for all.
 *
 * Usage:
 * <input type="text" autofocus>
 * 
 * License: MIT
 */
angular.module('utils.autofocus', [])

.directive('autofocus', ['$timeout', function($timeout) {
  return {
    restrict: 'A',
    link : function($scope, $element) {
      $timeout(function() {
        $element[0].focus();
      });
    }
  }
}]);

wonderful, thank you sir

how to add autofocus conditionally? so if expression is true add "autofocus" attribute.