66 lines
2.2 KiB
TypeScript
66 lines
2.2 KiB
TypeScript
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {APP_INITIALIZER, ApplicationRef, Inject, InjectionToken, Injector, ModuleWithProviders, NgModule} from '@angular/core';
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import {Observable} from 'rxjs/Observable';
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import {filter as op_filter} from 'rxjs/operator/filter';
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import {take as op_take} from 'rxjs/operator/take';
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import {toPromise as op_toPromise} from 'rxjs/operator/toPromise';
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import {NgswCommChannel} from './low_level';
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import {SwPush} from './push';
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import {SwUpdate} from './update';
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export const SCRIPT = new InjectionToken<string>('NGSW_REGISTER_SCRIPT');
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export const OPTS = new InjectionToken<Object>('NGSW_REGISTER_OPTIONS');
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export function ngswAppInitializer(
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injector: Injector, script: string, options: RegistrationOptions): Function {
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const initializer = () => {
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const app = injector.get<ApplicationRef>(ApplicationRef);
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if (!('serviceWorker' in navigator)) {
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return;
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}
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const onStable =
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op_filter.call(app.isStable, (stable: boolean) => !!stable) as Observable<boolean>;
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const isStable = op_take.call(onStable, 1) as Observable<boolean>;
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const whenStable = op_toPromise.call(isStable) as Promise<boolean>;
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return whenStable.then(() => navigator.serviceWorker.register(script, options))
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.then(() => undefined) as Promise<void>;
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};
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return initializer;
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}
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export function ngswCommChannelFactory(): NgswCommChannel {
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return new NgswCommChannel(navigator.serviceWorker);
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}
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/**
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* @experimental
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*/
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@NgModule({
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providers: [SwPush, SwUpdate],
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})
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export class ServiceWorkerModule {
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static register(script: string, opts: RegistrationOptions = {}): ModuleWithProviders {
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return {
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ngModule: ServiceWorkerModule,
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providers: [
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{provide: SCRIPT, useValue: script},
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{provide: OPTS, useValue: opts},
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{provide: NgswCommChannel, useFactory: ngswCommChannelFactory},
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{
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provide: APP_INITIALIZER,
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useFactory: ngswAppInitializer,
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deps: [Injector, SCRIPT, OPTS],
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multi: true,
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},
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],
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};
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}
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}
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