How to connect a button in an $ionicPopup to the controller that is invoking it?

I know ideally using an Actionsheet will solve my problem here, but I want to know if it is possible to connect a button in an ionicPopup to the controller that is invoking it via ng-click directive. I originally thought the ng-click directive will introduce the $scope of the controller, but it doesn't seem to be the case. So does that mean we cannot connect buttons to the controller in an ionicPopup?

$ionicPopup returns promises.

Let's say your view has a button which invokes (ng-click) a method in your controller:

<button class="button button-primary" ng-click="showConfirm()">Confirm</button>

In your controller you would invoke your popup doing something like this:

$scope.showConfirm = function() {
   var confirmPopup = $ionicPopup.confirm({
     title: 'Consume Ice Cream',
     template: 'Are you sure you want to eat this ice cream?'
   });
   confirmPopup.then(function(res) {
     if(res) {
       console.log('You are sure');
     } else {
       console.log('You are not sure');
     }
   });
 };

When a user has tapped on one of the 2 buttons in the confirm dialog you can read the result and do some other things.

confirmPopup.then(function(res) {
     if(res) {
       console.log('You are sure');
     } else {
       console.log('You are not sure');
     }
   });

I can not understand 100% your question, but I guess you need a button within a "$ ionicPopup" call a function of the controller? if so, I leave this.

$ionicPopup.show({
    title: 'Información View',
    subTitle: '',
    content: 'Content'
    scope: $scope,
    buttons: [{
      text: 'Exit',
      onTap: function(e) {
        //Call function by pressing button exit
      }
    }, {
      text: 'Ok',
      type: 'button-positive',
      onTap: function(e) {
        //Call function by pressing button Ok
      }
    }, ]
  })
}