Using TypeScript and controllerAs with $rootScope

I am currently developing an application using Angular 1 and Typescript. Here is the code snippet for my Login Controller:

module TheHub {
    /**
     * Controller for the login page.
     */
    export class LoginController {

        static $inject = ['$http', '$rootScope', '$location'];

        constructor(private $http: ng.IHttpService, private $rootScope, private $location: ng.ILocationService) {

        }

        /**
         * Function to validate user login credentials
         */
        login(user: {}) {
            this.$http.post('/login', user).then((value: ng.IHttpPromiseCallbackArg<{}>) => {
                this.$rootScope.auth = { isAuthenticated: true, isAuthenticationChecked: true };
                this.$location.url('/');
            }, (error: any) => {
                this.$rootScope.auth = { isAuthenticated: false, isAuthenticationChecked: true };
            });
        }
    }

    angular.module('TheHub').controller('LoginController', LoginController);
}

In my application structure, "App" serves as the main controller with "LoginController" nested underneath it. Despite attempting to update $rootScope in order to refresh the view linked to App after a successful login process, no changes appear to take effect. Looking for solutions, I came across this helpful post on Stack Overflow:

Define and Access $rootScope with controller as syntax

The suggestion mentioned involves creating a service to abstract authentication information, which I see the value in. However, how would two-way data binding be managed effectively? For instance, I aim to display a menu in the App controller's view only when the Login Controller successfully completes the login operation.

Update

App Controller:

module TheHub {
    /**
     * Main controller.
     */
    export class AppController {

        static $inject = ['$mdSidenav', '$rootScope'];

        constructor(private $mdSidenav: angular.material.ISidenavService, private $rootScope) {
        }

        /**
         * Handler for toggling left menu visibility.
         */
        openLeftMenu = () => {
            this.$mdSidenav('left').toggle();
        }
    }

    angular.module('TheHub').controller('AppController', AppController);
}

View:

<div id="sideNavContainer" ng-controller="AppController as ctrl" layout="column" ng-cloak layout-fill>
    <md-toolbar flex="none">
        <div class="md-toolbar-tools">
            <md-button class="md-icon-button" aria-label="Settings" hide-gt-md ng-click="ctrl.openLeftMenu()">
                <i class="material-icons">menu</i>
            </md-button>
            The Hub
            <span flex></span>
        </div>
    </md-toolbar>
    <md-content flex layout="row">
        <md-sidenav ng-show="ctrl.auth.isAuthenticated" class="md-sidenav-left" md-component-id="left" md-is-locked-open="$mdMedia('gt-md')" md-disable-backdrop md-whiteframe="4" flex="none">
            <md-content layout-padding>

            </md-content>
        </md-sidenav>
        <div ng-view flex="grow"></div>

    </md-content>
</div>

Answer №1

In your code, the auth object is being searched for in ctrl.auth. It assumes that it should be an attribute of AppController, but in reality, it belongs to $rootScope. Since all expressions are evaluated on the scope, and each scope inherits from $rootScope, you simply need to use

ng-show="auth.isAuthenticated"

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