The correct way to inject an angular controller dependency inside an angular.ui modal

You question is not very clear, but if you declare controller using the module API, then you can provide the controller to the modal service as a string

myApp.controller('ModalInstanceCtrl', ['$scope', function($scope) { $scope.greeting = 'Hola!'; }]);

controller: 'ModalInstanceCtrl',

The same can be done for loginCtrl if you want to use that in the modal service.