1 /** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
2 import * as tslib_1 from "tslib";
3 import { OuterSubscriber } from '../OuterSubscriber';
4 import { subscribeToResult } from '../util/subscribeToResult';
5 export function debounce(durationSelector) {
6 return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
8 var DebounceOperator = /*@__PURE__*/ (function () {
9 function DebounceOperator(durationSelector) {
10 this.durationSelector = durationSelector;
12 DebounceOperator.prototype.call = function (subscriber, source) {
13 return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
15 return DebounceOperator;
17 var DebounceSubscriber = /*@__PURE__*/ (function (_super) {
18 tslib_1.__extends(DebounceSubscriber, _super);
19 function DebounceSubscriber(destination, durationSelector) {
20 var _this = _super.call(this, destination) || this;
21 _this.durationSelector = durationSelector;
22 _this.hasValue = false;
23 _this.durationSubscription = null;
26 DebounceSubscriber.prototype._next = function (value) {
28 var result = this.durationSelector.call(this, value);
30 this._tryNext(value, result);
34 this.destination.error(err);
37 DebounceSubscriber.prototype._complete = function () {
39 this.destination.complete();
41 DebounceSubscriber.prototype._tryNext = function (value, duration) {
42 var subscription = this.durationSubscription;
46 subscription.unsubscribe();
47 this.remove(subscription);
49 subscription = subscribeToResult(this, duration);
50 if (subscription && !subscription.closed) {
51 this.add(this.durationSubscription = subscription);
54 DebounceSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
57 DebounceSubscriber.prototype.notifyComplete = function () {
60 DebounceSubscriber.prototype.emitValue = function () {
62 var value = this.value;
63 var subscription = this.durationSubscription;
65 this.durationSubscription = null;
66 subscription.unsubscribe();
67 this.remove(subscription);
70 this.hasValue = false;
71 _super.prototype._next.call(this, value);
74 return DebounceSubscriber;
76 //# sourceMappingURL=debounce.js.map