import { Component , Input } from '@angular/core' ; import { SourceSelection } from './source-toggle/source-toggle.component' ; import * as introJs from 'intro.js/intro.js' ; @ Component ( { selector : 'app-screen-settings' , styleUrls : [ './settings.screen.css' ] , templateUrl : './settings.screen.html' } ) export class SettingsScreen { @ Input ( ) sources : SourceSelection [ ] ; public startTutorial ( ) { introJs ( ) . start ( ) ; } }