[6a3a178] | 1 | /** PURE_IMPORTS_START tslib,_innerSubscribe PURE_IMPORTS_END */
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| 2 | import * as tslib_1 from "tslib";
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| 3 | import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
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| 4 | export function debounce(durationSelector) {
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| 5 | return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
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| 6 | }
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| 7 | var DebounceOperator = /*@__PURE__*/ (function () {
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| 8 | function DebounceOperator(durationSelector) {
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| 9 | this.durationSelector = durationSelector;
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| 10 | }
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| 11 | DebounceOperator.prototype.call = function (subscriber, source) {
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| 12 | return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
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| 13 | };
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| 14 | return DebounceOperator;
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| 15 | }());
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| 16 | var DebounceSubscriber = /*@__PURE__*/ (function (_super) {
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| 17 | tslib_1.__extends(DebounceSubscriber, _super);
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| 18 | function DebounceSubscriber(destination, durationSelector) {
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| 19 | var _this = _super.call(this, destination) || this;
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| 20 | _this.durationSelector = durationSelector;
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| 21 | _this.hasValue = false;
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| 22 | return _this;
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| 23 | }
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| 24 | DebounceSubscriber.prototype._next = function (value) {
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| 25 | try {
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| 26 | var result = this.durationSelector.call(this, value);
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| 27 | if (result) {
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| 28 | this._tryNext(value, result);
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| 29 | }
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| 30 | }
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| 31 | catch (err) {
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| 32 | this.destination.error(err);
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| 33 | }
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| 34 | };
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| 35 | DebounceSubscriber.prototype._complete = function () {
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| 36 | this.emitValue();
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| 37 | this.destination.complete();
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| 38 | };
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| 39 | DebounceSubscriber.prototype._tryNext = function (value, duration) {
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| 40 | var subscription = this.durationSubscription;
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| 41 | this.value = value;
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| 42 | this.hasValue = true;
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| 43 | if (subscription) {
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| 44 | subscription.unsubscribe();
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| 45 | this.remove(subscription);
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| 46 | }
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| 47 | subscription = innerSubscribe(duration, new SimpleInnerSubscriber(this));
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| 48 | if (subscription && !subscription.closed) {
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| 49 | this.add(this.durationSubscription = subscription);
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| 50 | }
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| 51 | };
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| 52 | DebounceSubscriber.prototype.notifyNext = function () {
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| 53 | this.emitValue();
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| 54 | };
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| 55 | DebounceSubscriber.prototype.notifyComplete = function () {
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| 56 | this.emitValue();
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| 57 | };
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| 58 | DebounceSubscriber.prototype.emitValue = function () {
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| 59 | if (this.hasValue) {
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| 60 | var value = this.value;
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| 61 | var subscription = this.durationSubscription;
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| 62 | if (subscription) {
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| 63 | this.durationSubscription = undefined;
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| 64 | subscription.unsubscribe();
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| 65 | this.remove(subscription);
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| 66 | }
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| 67 | this.value = undefined;
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| 68 | this.hasValue = false;
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| 69 | _super.prototype._next.call(this, value);
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| 70 | }
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| 71 | };
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| 72 | return DebounceSubscriber;
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| 73 | }(SimpleOuterSubscriber));
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| 74 | //# sourceMappingURL=debounce.js.map
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