@ultimate/ngx-fullscreen

📺 @ultimate/ngx-fullscreen

Angular Directive that implements the Fullscreen API.

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Installation

Install via npm i @ultimate/ngx-fullscreen and register the NgxFullscreenModule into an @NgModule.

Live Demo

Check the StackBlitz demo and the example code.

Template API

NgxFullscreenDirective can be used in both template and component (when queried with @ViewChild).

✨ Document or Elements

Entire Document: To fullscreen the document just add ngxFullscreen into a component template. Internally this uses the document.documentElement to enter fullscreen:

<!-- Registers the whole Document -->
<div ngxFullscreen></div>

Elements: Create a Template Ref, e.g. #video for the element you wish to fullscreen and pass it into [ngxFullscreen]:

<!-- Registers just this Element -->
<video 
  src="trailer.mp4" 
  #video
  [ngxFullscreen]="video"
></video>

✨ Enter Fullscreen Mode

Export the ngxFullscreen directive to a Template Ref, e.g. #fullscreen and call enter():

<video 
  src="trailer.mp4" 
  #video
  [ngxFullscreen]="video"
  #fullscreen="ngxFullscreen"
></video>

<button (click)="fullscreen.enter()">
  Enter Fullscreen
</button>

The enter() method also accepts an optional Element to pass a dynamic element.

✨ Exit Fullscreen Mode

Use the exit() method to exit fullscreen mode:

<video 
  src="trailer.mp4" 
  #video
  [ngxFullscreen]="video"
  #fullscreen="ngxFullscreen"
></video>

<button (click)="fullscreen.exit()">
  Exit Fullscreen
</button>

✨ Toggle Fullscreen Mode

Use the toggle() method to toggle fullscreen mode:

<video 
  src="trailer.mp4" 
  #video
  [ngxFullscreen]="video"
  #fullscreen="ngxFullscreen"
></video>

<button (click)="fullscreen.toggle()">
  Toggle Fullscreen
</button>

The toggle() method also accepts an optional Element to pass a dynamic element.

✨ Transition Event

Fires entering and exiting fullscreen mode, using the fullscreenchange event behind-the-scenes:

<video 
  src="trailer.mp4" 
  #video
  [ngxFullscreen]="video"
  #fullscreen="ngxFullscreen"
  (transition)="onTransition($event)"
></video>

The $event is of type NgxFullscreenTransition, contains the fullscreen status and element that is/was fullscreened.

✨ isFullscreen property

Check if fullscreen mode is active via fullscreen.isFullscreen. Returns true or false.

<video 
  src="trailer.mp4" 
  #video
  [ngxFullscreen]="video"
  #fullscreen="ngxFullscreen"
></video>

Fullscreen Mode: {{ fullscreen.isFullscreen ? 'Active' : 'Inactive' }}

✨ Active Class

The fullscreen element will receive an active class is-fullscreen via a @HostBinding.

@ViewChild and Component API

The NgxFullscreenDirective is exposed when queried with @ViewChild, any public methods and properties are also accessible.

✨ Query with @ViewChild

Use a @ViewChild query and call any property as you would inside the template.

import {
  NgxFullscreenDirective, 
  NgxFullscreenTransition
} from '@ultimate/ngx-fullscreen';

@Component({...})
export class AppComponent implements AfterViewInit {
  @ViewChild('fullscreen') fullscreen!: NgxFullscreenDirective;

  onClick() {
    this.fullscreen.toggle();
  }

  enterFullscreen() {
    this.fullscreen.enter();
  }

  exitFullscreen() {
    this.fullscreen.exit();
  }

  ngAfterViewInit() {
    this.fullscreen.transition
      .subscribe((change: NgxFullscreenTransition) => {
        console.log(change); // { isFullscreen: boolean, element: Element }
      });
  }
}

✨ Errors

Fullscreen errors are caught when entering and exiting and are passed from the directive via an errors event:

@Component({...})
export class AppComponent implements AfterViewInit {
  @ViewChild('fullscreen') fullscreen!: NgxFullscreenDirective;

  ngAfterViewInit() {
    this.fullscreen.errors.subscribe((err: string) => {
      // e.g. "Failed to execute 'requestFullscreen' on 'Element'"
      console.log(err);
    });
  }
}

⚠ Browser Permissions

Due to the Permissions API, you cannot invoke Fullscreen mode unless it is from a user action, such as a click event.

This means you cannot load a page and behind the scenes invoke a successful Fullscreen request. This is a common source of errors so keep that in mind.