60 lines
2.4 KiB
JavaScript
60 lines
2.4 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 Subscriber_1 = require("../Subscriber");
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var async_1 = require("../scheduler/async");
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function sampleTime(period, scheduler) {
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if (scheduler === void 0) { scheduler = async_1.async; }
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return function (source) { return source.lift(new SampleTimeOperator(period, scheduler)); };
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}
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exports.sampleTime = sampleTime;
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var SampleTimeOperator = (function () {
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function SampleTimeOperator(period, scheduler) {
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this.period = period;
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this.scheduler = scheduler;
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}
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SampleTimeOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new SampleTimeSubscriber(subscriber, this.period, this.scheduler));
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};
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return SampleTimeOperator;
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}());
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var SampleTimeSubscriber = (function (_super) {
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__extends(SampleTimeSubscriber, _super);
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function SampleTimeSubscriber(destination, period, scheduler) {
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var _this = _super.call(this, destination) || this;
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_this.period = period;
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_this.scheduler = scheduler;
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_this.hasValue = false;
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_this.add(scheduler.schedule(dispatchNotification, period, { subscriber: _this, period: period }));
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return _this;
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}
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SampleTimeSubscriber.prototype._next = function (value) {
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this.lastValue = value;
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this.hasValue = true;
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};
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SampleTimeSubscriber.prototype.notifyNext = function () {
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if (this.hasValue) {
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this.hasValue = false;
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this.destination.next(this.lastValue);
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}
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};
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return SampleTimeSubscriber;
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}(Subscriber_1.Subscriber));
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function dispatchNotification(state) {
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var subscriber = state.subscriber, period = state.period;
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subscriber.notifyNext();
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this.schedule(state, period);
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}
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//# sourceMappingURL=sampleTime.js.map
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