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| import { Injectable, EventEmitter, QueryList } from '@angular/core';
import { VgUtils } from './vg-utils';
import { VgMedia } from '../vg-media/vg-media';
import { Subscription } from 'rxjs/Subscription';
import { Observable } from 'rxjs/Observable';
export class VgFullscreenAPI {
polyfill: any;
onchange: string;
onerror: string;
nativeFullscreen: boolean = true;
isFullscreen: boolean = false;
isAvailable: boolean;
videogularElement: HTMLElement;
medias: QueryList<VgMedia>;
fsChangeSubscription: Subscription;
onChangeFullscreen: EventEmitter<any> = new EventEmitter();
constructor() {}
init(elem: HTMLElement, medias: QueryList<VgMedia>) {
this.videogularElement = elem;
this.medias = medias;
const APIs = {
w3: {
enabled: 'fullscreenEnabled',
element: 'fullscreenElement',
request: 'requestFullscreen',
exit: 'exitFullscreen',
onchange: 'fullscreenchange',
onerror: 'fullscreenerror'
},
newWebkit: {
enabled: 'webkitFullscreenEnabled',
element: 'webkitFullscreenElement',
request: 'webkitRequestFullscreen',
exit: 'webkitExitFullscreen',
onchange: 'webkitfullscreenchange',
onerror: 'webkitfullscreenerror'
},
oldWebkit: {
enabled: 'webkitIsFullScreen',
element: 'webkitCurrentFullScreenElement',
request: 'webkitRequestFullScreen',
exit: 'webkitCancelFullScreen',
onchange: 'webkitfullscreenchange',
onerror: 'webkitfullscreenerror'
},
moz: {
enabled: 'mozFullScreen',
element: 'mozFullScreenElement',
request: 'mozRequestFullScreen',
exit: 'mozCancelFullScreen',
onchange: 'mozfullscreenchange',
onerror: 'mozfullscreenerror'
},
ios: {
enabled: 'webkitFullscreenEnabled',
element: 'webkitFullscreenElement',
request: 'webkitEnterFullscreen',
exit: 'webkitExitFullscreen',
onchange: 'webkitendfullscreen', // Hack for iOS: webkitfullscreenchange it's not firing
onerror: 'webkitfullscreenerror'
},
ms: {
enabled: 'msFullscreenEnabled',
element: 'msFullscreenElement',
request: 'msRequestFullscreen',
exit: 'msExitFullscreen',
onchange: 'MSFullscreenChange',
onerror: 'MSFullscreenError'
}
};
for (let browser in APIs) {
if (APIs[ browser ].enabled in document) {
this.polyfill = APIs[ browser ];
break;
}
}
Iif (VgUtils.isiOSDevice()) {
this.polyfill = APIs.ios
}
let fsElemDispatcher;
switch (this.polyfill.onchange) {
// Mozilla dispatches the fullscreen change event from document, not the element
// See: https://bugzilla.mozilla.org/show_bug.cgi?id=724816#c3
case 'mozfullscreenchange':
fsElemDispatcher = document;
break;
// iOS dispatches the fullscreen change event from video element
case 'webkitendfullscreen':
fsElemDispatcher = this.medias.toArray()[ 0 ].elem;
break;
// HTML5 implementation dispatches the fullscreen change event from the element
default:
fsElemDispatcher = elem;
}
this.fsChangeSubscription = Observable.fromEvent(fsElemDispatcher, this.polyfill.onchange).subscribe(() => {
this.onFullscreenChange();
});
this.isAvailable = (this.polyfill != null);
}
onFullscreenChange() {
this.isFullscreen = !!document[ this.polyfill.element ];
this.onChangeFullscreen.next(this.isFullscreen);
}
toggleFullscreen(element: any = null) {
if (this.isFullscreen) {
this.exit();
}
else {
this.request(element);
}
}
request(elem: any) {
if (!elem) {
elem = this.videogularElement;
}
this.isFullscreen = true;
this.onChangeFullscreen.next(true);
// Perform native full screen support
if (this.isAvailable && this.nativeFullscreen) {
// Fullscreen for mobile devices
if (VgUtils.isMobileDevice()) {
// We should make fullscreen the video object if it doesn't have native fullscreen support
// Fallback! We can't set vg-player on fullscreen, only video/audio objects
Iif ((!this.polyfill.enabled && elem === this.videogularElement) || VgUtils.isiOSDevice()) {
elem = this.medias.toArray()[ 0 ].elem;
}
this.enterElementInFullScreen(elem);
}
else {
this.enterElementInFullScreen(this.videogularElement);
}
}
}
enterElementInFullScreen(elem: any) {
elem[ this.polyfill.request ]();
}
exit() {
this.isFullscreen = false;
this.onChangeFullscreen.next(false);
// Exit from native fullscreen
if (this.isAvailable && this.nativeFullscreen) {
document[ this.polyfill.exit ]();
}
}
static decorators: DecoratorInvocation[] = [
{ type: Injectable },
];
/** @nocollapse */
static ctorParameters: ({type: any, decorators?: DecoratorInvocation[]}|null)[] = [
];
}
interface DecoratorInvocation {
type: Function;
args?: any[];
}
|