1 import { OuterSubscriber } from '../OuterSubscriber';
2 import { subscribeToResult } from '../util/subscribeToResult';
3 export function debounce(durationSelector) {
4 return (source) => source.lift(new DebounceOperator(durationSelector));
6 class DebounceOperator {
7 constructor(durationSelector) {
8 this.durationSelector = durationSelector;
10 call(subscriber, source) {
11 return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
14 class DebounceSubscriber extends OuterSubscriber {
15 constructor(destination, durationSelector) {
17 this.durationSelector = durationSelector;
18 this.hasValue = false;
19 this.durationSubscription = null;
23 const result = this.durationSelector.call(this, value);
25 this._tryNext(value, result);
29 this.destination.error(err);
34 this.destination.complete();
36 _tryNext(value, duration) {
37 let subscription = this.durationSubscription;
41 subscription.unsubscribe();
42 this.remove(subscription);
44 subscription = subscribeToResult(this, duration);
45 if (subscription && !subscription.closed) {
46 this.add(this.durationSubscription = subscription);
49 notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
57 const value = this.value;
58 const subscription = this.durationSubscription;
60 this.durationSubscription = null;
61 subscription.unsubscribe();
62 this.remove(subscription);
65 this.hasValue = false;
70 //# sourceMappingURL=debounce.js.map