How to make google chrome go full screen in Angular 4 Application?

Question

I am developing an application where I want to implement such a thing where if user leaves from one component & enters other component, then in other component\'s ngOnInit m

Answer 1

put the following code on the top of the component (before @Component) you want to trigger:

    interface FsDocument extends HTMLDocument {
      mozFullScreenElement?: Element;
      msFullscreenElement?: Element;
      msExitFullscreen?: () => void;
      mozCancelFullScreen?: () => void;
    }

    export function isFullScreen(): boolean {
      const fsDoc =  document;

      return !!(fsDoc.fullscreenElement || fsDoc.mozFullScreenElement || fsDoc.webkitFullscreenElement || fsDoc.msFullscreenElement);
    }

    interface FsDocumentElement extends HTMLElement {
      msRequestFullscreen?: () => void;
      mozRequestFullScreen?: () => void;
    }

    export function toggleFullScreen(): void {
      const fsDoc =  document;

      if (!isFullScreen()) {
        const fsDocElem =  document.documentElement;

        if (fsDocElem.requestFullscreen)
          fsDocElem.requestFullscreen();
        else if (fsDocElem.msRequestFullscreen)
          fsDocElem.msRequestFullscreen();
        else if (fsDocElem.mozRequestFullScreen)
          fsDocElem.mozRequestFullScreen();
        else if (fsDocElem.webkitRequestFullscreen)
          fsDocElem.webkitRequestFullscreen();
      }
      else if (fsDoc.exitFullscreen)
        fsDoc.exitFullscreen();
      else if (fsDoc.msExitFullscreen)
        fsDoc.msExitFullscreen();
      else if (fsDoc.mozCancelFullScreen)
        fsDoc.mozCancelFullScreen();
      else if (fsDoc.webkitExitFullscreen)
        fsDoc.webkitExitFullscreen();
    }

    export function setFullScreen(full: boolean): void {
      if (full !== isFullScreen())
        toggleFullScreen();
    }

and on the ngOnInit method make a call to the setFullScreen(full: boolean) function:

ngOnInit(): void {
    setFullScreen(true);
}