1 | /** PURE_IMPORTS_START tslib,_innerSubscribe PURE_IMPORTS_END */
|
---|
2 | import * as tslib_1 from "tslib";
|
---|
3 | import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
|
---|
4 | export function debounce(durationSelector) {
|
---|
5 | return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
|
---|
6 | }
|
---|
7 | var DebounceOperator = /*@__PURE__*/ (function () {
|
---|
8 | function DebounceOperator(durationSelector) {
|
---|
9 | this.durationSelector = durationSelector;
|
---|
10 | }
|
---|
11 | DebounceOperator.prototype.call = function (subscriber, source) {
|
---|
12 | return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
|
---|
13 | };
|
---|
14 | return DebounceOperator;
|
---|
15 | }());
|
---|
16 | var DebounceSubscriber = /*@__PURE__*/ (function (_super) {
|
---|
17 | tslib_1.__extends(DebounceSubscriber, _super);
|
---|
18 | function DebounceSubscriber(destination, durationSelector) {
|
---|
19 | var _this = _super.call(this, destination) || this;
|
---|
20 | _this.durationSelector = durationSelector;
|
---|
21 | _this.hasValue = false;
|
---|
22 | return _this;
|
---|
23 | }
|
---|
24 | DebounceSubscriber.prototype._next = function (value) {
|
---|
25 | try {
|
---|
26 | var result = this.durationSelector.call(this, value);
|
---|
27 | if (result) {
|
---|
28 | this._tryNext(value, result);
|
---|
29 | }
|
---|
30 | }
|
---|
31 | catch (err) {
|
---|
32 | this.destination.error(err);
|
---|
33 | }
|
---|
34 | };
|
---|
35 | DebounceSubscriber.prototype._complete = function () {
|
---|
36 | this.emitValue();
|
---|
37 | this.destination.complete();
|
---|
38 | };
|
---|
39 | DebounceSubscriber.prototype._tryNext = function (value, duration) {
|
---|
40 | var subscription = this.durationSubscription;
|
---|
41 | this.value = value;
|
---|
42 | this.hasValue = true;
|
---|
43 | if (subscription) {
|
---|
44 | subscription.unsubscribe();
|
---|
45 | this.remove(subscription);
|
---|
46 | }
|
---|
47 | subscription = innerSubscribe(duration, new SimpleInnerSubscriber(this));
|
---|
48 | if (subscription && !subscription.closed) {
|
---|
49 | this.add(this.durationSubscription = subscription);
|
---|
50 | }
|
---|
51 | };
|
---|
52 | DebounceSubscriber.prototype.notifyNext = function () {
|
---|
53 | this.emitValue();
|
---|
54 | };
|
---|
55 | DebounceSubscriber.prototype.notifyComplete = function () {
|
---|
56 | this.emitValue();
|
---|
57 | };
|
---|
58 | DebounceSubscriber.prototype.emitValue = function () {
|
---|
59 | if (this.hasValue) {
|
---|
60 | var value = this.value;
|
---|
61 | var subscription = this.durationSubscription;
|
---|
62 | if (subscription) {
|
---|
63 | this.durationSubscription = undefined;
|
---|
64 | subscription.unsubscribe();
|
---|
65 | this.remove(subscription);
|
---|
66 | }
|
---|
67 | this.value = undefined;
|
---|
68 | this.hasValue = false;
|
---|
69 | _super.prototype._next.call(this, value);
|
---|
70 | }
|
---|
71 | };
|
---|
72 | return DebounceSubscriber;
|
---|
73 | }(SimpleOuterSubscriber));
|
---|
74 | //# sourceMappingURL=debounce.js.map
|
---|