import { Component, ElementRef, Input, OnChanges, ViewChild } from '@angular/core' import { CustomMarkupService } from './custom-markup.service' @Component({ selector: 'my-custom-markup-container', templateUrl: './custom-markup-container.component.html' }) export class CustomMarkupContainerComponent implements OnChanges { @ViewChild('contentWrapper') contentWrapper: ElementRef @Input() content: string displayed = false constructor ( private customMarkupService: CustomMarkupService ) { } async ngOnChanges () { await this.buildElement() } private async buildElement () { if (!this.content) return const { rootElement, componentsLoaded } = await this.customMarkupService.buildElement(this.content) this.contentWrapper.nativeElement.appendChild(rootElement) await componentsLoaded this.displayed = true } }