Is it possible for Angular 7 to disconnect from the internet?

I am looking to disable all buttons, clicks, and hyperlinks while displaying a backdrop with the message "GO ONLINE". It may come off as rude, but it is necessary.

AppComponent (TS): The connectionMonitor can be used to monitor network connectivity.

  private onlineObserver(){
    if (isPlatformBrowser(this.platformId)) {
      const offline$ = fromEvent(window, 'offline').pipe(mapTo(false));
      const online$ = fromEvent(window, 'online').pipe(mapTo(true));
      this.connectionMonitor = merge( offline$, online$ );
    } else {
      this.connectionMonitor = empty();
    }
  }

app.component.html : Just include the whole router-outlet.

<router-outlet></router-outlet>

Any suggestions on how to implement this in Angular 7?

javascriptangulartypescriptrxjs

Answer №1

To display different content based on the online status, you can utilize the online flag on your router outlet along with an ngIf directive.

<router-outlet *ngIf="online$ | async else offline"></router-outlet>
<ng-template #offline>
  This content will be displayed when the user is not online
</ng-template>

Alternatively, you can also use the following approach:

<router-outlet *ngIf="online$ | async"></router-outlet>
<ng-container *ngIf="offline$ | async">
  This content will show when the user is offline
</ng-container>

Answer №2

ngIf="offline$ | async <- use this on the element to display when offline

ngIf="online$ | async <- use this on the element to display when online

To show inactive controls but still display them, consider using an ng-template to load different templates based on whether you're offline. Ensure that the offline elements have no click events, href links, or pointer events. More details would be helpful to provide a more specific solution for your use case.

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