overleaf/services/web/frontend/js/ide/share/controllers/OwnershipTransferConfirmModalController.js

import App from '../../../base'
App.controller(
  'OwnershipTransferConfirmModalController',
  function ($scope, $window, $modalInstance, projectMembers) {
    $scope.state = {
      inflight: false,
      error: false,
    }

    $scope.confirm = function () {
      const userId = $scope.member._id
      transferOwnership(userId)
    }

    $scope.cancel = function () {
      $modalInstance.dismiss()
    }

    function transferOwnership(userId) {
      $scope.state.inflight = true
      $scope.state.error = false
      projectMembers
        .transferOwnership(userId)
        .then(() => {
          $scope.state.inflight = false
          $scope.state.error = false
          $window.location.reload()
        })
        .catch(() => {
          $scope.state.inflight = false
          $scope.state.error = true
        })
    }
  }
)