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import { Injectable, NgZone } from '@angular/core';
import { asyncScheduler, SchedulerLike, Subscription } from 'rxjs';
abstract class NgZoneScheduler implements SchedulerLike {
protected scheduler = asyncScheduler;
constructor(protected zone: NgZone) {}
abstract schedule(...args: any[]): Subscription;
now(): number {
return this.scheduler.now();
}
}
@Injectable({
providedIn: 'root'
})
export class LeaveNgZoneScheduler extends NgZoneScheduler {
constructor(zone: NgZone) {
super(zone);
}
schedule(...args: any[]): Subscription {
return this.zone.runOutsideAngular(() => this.scheduler.schedule.apply(this.scheduler, args));
}
}
@Injectable({
providedIn: 'root'
})
export class EnterNgZoneScheduler extends NgZoneScheduler {
constructor(zone: NgZone) {
super(zone);
}
schedule(...args: any[]): Subscription {
return this.zone.run(() => this.scheduler.schedule.apply(this.scheduler, args));
}
}
@Injectable({
providedIn: 'root'
})
export class NgZoneSchedulerService {
constructor(public leave: LeaveNgZoneScheduler, public enter: EnterNgZoneScheduler) {}
}
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