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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/* tslint:disable:array-type member-access variable-name typedef
only-arrow-functions directive-class-suffix component-class-suffix
component-selector*/
import {Injectable} from '@angular/core';
import {OverlayContainer} from './overlay-container';
/**
* The FullscreenOverlayContainer is the alternative to OverlayContainer
* that supports correct displaying of overlay elements in Fullscreen mode
* https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullScreen
* It should be provided in the root component that way:
* providers: [
* {provide: OverlayContainer, useClass: FullscreenOverlayContainer}
* ],
*/
@Injectable()
export class FullscreenOverlayContainer extends OverlayContainer {
protected _createContainer(): void {
super._createContainer();
this._adjustParentForFullscreenChange();
this._addFullscreenChangeListener(
() => this._adjustParentForFullscreenChange());
}
private _adjustParentForFullscreenChange(): void {
if (!this._containerElement) {
return;
}
const fullscreenElement = this.getFullscreenElement();
const parent = fullscreenElement || document.body;
parent.appendChild(this._containerElement);
}
private _addFullscreenChangeListener(fn: () => void) {
if (document.fullscreenEnabled) {
document.addEventListener('fullscreenchange', fn);
} else if (document.webkitFullscreenEnabled) {
document.addEventListener('webkitfullscreenchange', fn);
} else if ((document as any).mozFullScreenEnabled) {
document.addEventListener('mozfullscreenchange', fn);
} else if ((document as any).msFullscreenEnabled) {
document.addEventListener('MSFullscreenChange', fn);
}
}
/**
* When the page is put into fullscreen mode, a specific element is specified.
* Only that element and its children are visible when in fullscreen mode.
*/
getFullscreenElement(): Element {
return document.fullscreenElement || document.webkitFullscreenElement ||
(document as any).mozFullScreenElement ||
(document as any).msFullscreenElement || null;
}
}
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