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Copy pathangularfire2.ts
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67 lines (63 loc) · 2.32 KB
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import { InjectionToken, NgZone } from '@angular/core';
import { isPlatformServer } from '@angular/common';
import { Observable, Subscription, queueScheduler as queue } from 'rxjs';
// Put in database.ts when we drop database-depreciated
export const RealtimeDatabaseURL = new InjectionToken<string>('angularfire2.realtimeDatabaseURL');
export class FirebaseZoneScheduler {
constructor(public zone: NgZone, private platformId: Object) {}
schedule(...args: any[]): Subscription {
return <Subscription>this.zone.runGuarded(function() { return queue.schedule.apply(queue, args)});
}
// TODO this is a hack, clean it up
keepUnstableUntilFirst<T>(obs$: Observable<T>) {
if (isPlatformServer(this.platformId)) {
return new Observable<T>(subscriber => {
const noop = () => {};
const task = Zone.current.scheduleMacroTask('firebaseZoneBlock', noop, {}, noop, noop);
obs$.subscribe(
next => {
if (task.state === 'scheduled') { task.invoke() };
subscriber.next(next);
},
error => {
if (task.state === 'scheduled') { task.invoke() }
subscriber.error(error);
},
() => {
if (task.state === 'scheduled') { task.invoke() }
subscriber.complete();
}
);
});
} else {
return obs$;
}
}
runOutsideAngular<T>(obs$: Observable<T>): Observable<T> {
return new Observable<T>(subscriber => {
return this.zone.runOutsideAngular(() => {
return obs$.subscribe(
value => this.zone.run(() => subscriber.next(value)),
error => this.zone.run(() => subscriber.error(error)),
() => this.zone.run(() => subscriber.complete()),
);
});
});
}
}
export const runOutsideAngular = (zone: NgZone) => <T>(obs$: Observable<T>): Observable<T> => {
return new Observable<T>(subscriber => {
return zone.runOutsideAngular(() => {
runInZone(zone)(obs$).subscribe(subscriber);
});
});
}
export const runInZone = (zone: NgZone) => <T>(obs$: Observable<T>): Observable<T> => {
return new Observable<T>(subscriber => {
return obs$.subscribe(
value => zone.run(() => subscriber.next(value)),
error => zone.run(() => subscriber.error(error)),
() => zone.run(() => subscriber.complete()),
);
});
}