65 lines
2.4 KiB
JavaScript
65 lines
2.4 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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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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var OuterSubscriber_1 = require('../OuterSubscriber');
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var subscribeToResult_1 = require('../util/subscribeToResult');
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function throttle(durationSelector) {
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return this.lift(new ThrottleOperator(durationSelector));
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}
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exports.throttle = throttle;
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var ThrottleOperator = (function () {
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function ThrottleOperator(durationSelector) {
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this.durationSelector = durationSelector;
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}
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ThrottleOperator.prototype.call = function (subscriber) {
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return new ThrottleSubscriber(subscriber, this.durationSelector);
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};
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return ThrottleOperator;
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}());
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var ThrottleSubscriber = (function (_super) {
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__extends(ThrottleSubscriber, _super);
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function ThrottleSubscriber(destination, durationSelector) {
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_super.call(this, destination);
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this.destination = destination;
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this.durationSelector = durationSelector;
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}
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ThrottleSubscriber.prototype._next = function (value) {
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if (!this.throttled) {
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this.tryDurationSelector(value);
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}
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};
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ThrottleSubscriber.prototype.tryDurationSelector = function (value) {
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var duration = null;
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try {
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duration = this.durationSelector(value);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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this.emitAndThrottle(value, duration);
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};
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ThrottleSubscriber.prototype.emitAndThrottle = function (value, duration) {
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this.add(this.throttled = subscribeToResult_1.subscribeToResult(this, duration));
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this.destination.next(value);
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};
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ThrottleSubscriber.prototype._unsubscribe = function () {
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var throttled = this.throttled;
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if (throttled) {
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this.remove(throttled);
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this.throttled = null;
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throttled.unsubscribe();
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}
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};
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ThrottleSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
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this._unsubscribe();
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};
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ThrottleSubscriber.prototype.notifyComplete = function () {
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this._unsubscribe();
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};
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return ThrottleSubscriber;
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}(OuterSubscriber_1.OuterSubscriber));
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//# sourceMappingURL=throttle.js.map
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