app/users/controllers/user-accounts-controller.js

/**
 * Controller for user Accounts
 *
 * @module app/users
 * @exports userAccountsController
 * @name userAccountsController
 */

window.angular && (function(angular) {
  'use strict';

  angular
    .module('app.users')
    .controller('userAccountsController', [
      '$scope',
      '$window',
      'APIUtils',
      'dataService',
      function($scope, $window, APIUtils, dataService) {
        $scope.dataService = dataService;
        $scope.state = 'none';
        $scope.errorMsg = '';

        $scope.changePassword = function(oldPassword, newPassword, confirmNewPassword) {
          var user = $scope.dataService.getUser();
          if (!oldPassword || !newPassword || !confirmNewPassword) {
            $scope.state = 'error';
            $scope.errorMsg = 'Field is required!';
            return false;
          }
          if (newPassword !== confirmNewPassword) {
            $scope.state = 'error';
            $scope.errorMsg = 'New passwords do not match!';
            return false;
          }
          if (newPassword === oldPassword) {
            $scope.state = 'error';
            $scope.errorMsg = 'New password and old password match!';
            return false;
          }

          // Verify the oldPassword is correct
          APIUtils.testPassword(user, oldPassword).then(function(state) {
            APIUtils.changePassword(user, newPassword).then(function(response) {
              // Clear the textboxes on a success
              $scope.passwordVerify = '';
              $scope.password = '';
              $scope.oldPassword = '';
              $scope.state = 'success';
            }, function(error) {
              $scope.state = 'error';
              $scope.errorMsg = 'Error changing password!';
            });
          }, function(error) {
            $scope.state = 'error';
            $scope.errorMsg = 'Old password is not correct!';
          });
        };
      }
    ]);
})(angular);