49 lines
1.8 KiB
JavaScript
49 lines
1.8 KiB
JavaScript
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/** PURE_IMPORTS_START tslib,_Subscriber,_scheduler_async PURE_IMPORTS_END */
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import * as tslib_1 from "tslib";
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import { Subscriber } from '../Subscriber';
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import { async } from '../scheduler/async';
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export function sampleTime(period, scheduler) {
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if (scheduler === void 0) {
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scheduler = async;
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}
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return function (source) { return source.lift(new SampleTimeOperator(period, scheduler)); };
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}
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var SampleTimeOperator = /*@__PURE__*/ (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 = /*@__PURE__*/ (function (_super) {
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tslib_1.__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));
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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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