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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | 92x 92x 92x 92x 23x 23x 23x 23x 92x 25x 25x 2x 25x 35x 92x 4x 92x 1x 92x | import { Injectable, OnDestroy } from '@angular/core'; import { BehaviorSubject, interval, Subscription } from 'rxjs'; import { ServicesModule } from './services.module'; @Injectable({ providedIn: ServicesModule }) export class RefreshIntervalService implements OnDestroy { private intervalTime: number; // Observable sources private intervalDataSource = new BehaviorSubject(null); private intervalSubscription: Subscription; // Observable streams intervalData$ = this.intervalDataSource.asObservable(); constructor() { const initialInterval = parseInt(sessionStorage.getItem('dashboard_interval'), 10) || 5000; this.setRefreshInterval(initialInterval); } setRefreshInterval(newInterval: number) { this.intervalTime = newInterval; sessionStorage.setItem('dashboard_interval', newInterval.toString()); if (this.intervalSubscription) { this.intervalSubscription.unsubscribe(); } this.intervalSubscription = interval(this.intervalTime).subscribe(() => this.intervalDataSource.next(this.intervalTime) ); } getRefreshInterval() { return this.intervalTime; } ngOnDestroy() { if (this.intervalSubscription) { this.intervalSubscription.unsubscribe(); } } } |