90 lines
3.4 KiB
JavaScript
90 lines
3.4 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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}
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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var OuterSubscriber_1 = require("../OuterSubscriber");
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var subscribeToResult_1 = require("../util/subscribeToResult");
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function debounce(durationSelector) {
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return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
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}
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exports.debounce = debounce;
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var DebounceOperator = (function () {
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function DebounceOperator(durationSelector) {
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this.durationSelector = durationSelector;
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}
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DebounceOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
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};
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return DebounceOperator;
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}());
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var DebounceSubscriber = (function (_super) {
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__extends(DebounceSubscriber, _super);
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function DebounceSubscriber(destination, durationSelector) {
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var _this = _super.call(this, destination) || this;
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_this.durationSelector = durationSelector;
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_this.hasValue = false;
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_this.durationSubscription = null;
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return _this;
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}
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DebounceSubscriber.prototype._next = function (value) {
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try {
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var result = this.durationSelector.call(this, value);
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if (result) {
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this._tryNext(value, result);
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}
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}
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catch (err) {
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this.destination.error(err);
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}
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};
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DebounceSubscriber.prototype._complete = function () {
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this.emitValue();
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this.destination.complete();
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};
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DebounceSubscriber.prototype._tryNext = function (value, duration) {
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var subscription = this.durationSubscription;
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this.value = value;
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this.hasValue = true;
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if (subscription) {
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subscription.unsubscribe();
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this.remove(subscription);
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}
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subscription = subscribeToResult_1.subscribeToResult(this, duration);
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if (subscription && !subscription.closed) {
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this.add(this.durationSubscription = subscription);
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}
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};
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DebounceSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
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this.emitValue();
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};
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DebounceSubscriber.prototype.notifyComplete = function () {
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this.emitValue();
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};
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DebounceSubscriber.prototype.emitValue = function () {
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if (this.hasValue) {
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var value = this.value;
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var subscription = this.durationSubscription;
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if (subscription) {
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this.durationSubscription = null;
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subscription.unsubscribe();
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this.remove(subscription);
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}
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this.value = null;
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this.hasValue = false;
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_super.prototype._next.call(this, value);
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}
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};
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return DebounceSubscriber;
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}(OuterSubscriber_1.OuterSubscriber));
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//# sourceMappingURL=debounce.js.map
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