import { Component } from '@angular/core' ; import { PreviewService } from '../services/preview.service' ; import { Router } from '@angular/router' ; @ Component ( { templateUrl : 'bob-view.component.html' } ) export class BlobViewComponent { content : Blob ; name : string ; constructor ( preview , router ) { if ( preview . content === null || preview . name === null ) { router . navigate ( [ { outlets : { overlay : null } } ] ) ; return ; } this . content = preview . content ; this . name = preview . name ; } }