import { Component, OnInit, ViewEncapsulation } from '@angular/core'; declare var requestFullscreen: Function; declare var exitFullscreen: Function; @Component({ selector: 'core-fullscreen', templateUrl: './fullscreen.component.html', styleUrls: ['./fullscreen.component.css'], encapsulation: ViewEncapsulation.None }) export class FullscreenComponent implements OnInit { constructor() { } ngOnInit() { } isFullScreen: boolean = document.fullscreen; fullScreen() { requestFullscreen(); this.isFullScreen = true; } fullScreenExit() { exitFullscreen(); this.isFullScreen = false; } }