title: SweetAlert Calling code after clicking "Cancel" button
body: <p>I have written following code, I want to call a code under "Cancel" button:</p>
  
  <pre><code>vm.saveGroup = function(){
      SweetAlert.swal({
          title: "Name this Device Group",
          text: "Please provide a name that you want your device group to be saved under. Also, make sure that you already specified all needed filters before you save the list.",
          type: "input",
          showCancelButton: true,
          closeOnConfirm: false,
          showLoaderOnConfirm: true,
          inputPlaceholder: "Device Group name"
      },
      function(inputValue){
          if (inputValue === false) {
              return false;
          }
          if (inputValue === "") {
              /*eslint-disable */
              swal.showInputError("You need to write something!");
              /*eslint-enable */
              return false;
          }
  
          deviceGroupsFactory.saveGroup(inputValue, vm.filterOutput)
              .then(function(response){
                  if (response.status == 200){
                      SweetAlert.swal("Device Group saved!", "You should now see your device group on the list.", "success");
                      $state.go('main.template.devices.groups');
                  }
                  else {
  
                      SweetAlert.swal("Error!", response.statusText, "error");
  
                    console.log('xxx');
                  }
              });
      });
  
  }
  </code></pre>
  
  <p>but I cannot call "cancel clicked". I was looking for in docs but cannot find the solution. </p>