65 lines
2.4 KiB
JavaScript
65 lines
2.4 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 debounceTime(dueTime, 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 DebounceTimeOperator(dueTime, scheduler)); };
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}
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var DebounceTimeOperator = /*@__PURE__*/ (function () {
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function DebounceTimeOperator(dueTime, scheduler) {
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this.dueTime = dueTime;
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this.scheduler = scheduler;
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}
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DebounceTimeOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new DebounceTimeSubscriber(subscriber, this.dueTime, this.scheduler));
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};
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return DebounceTimeOperator;
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}());
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var DebounceTimeSubscriber = /*@__PURE__*/ (function (_super) {
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tslib_1.__extends(DebounceTimeSubscriber, _super);
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function DebounceTimeSubscriber(destination, dueTime, scheduler) {
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var _this = _super.call(this, destination) || this;
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_this.dueTime = dueTime;
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_this.scheduler = scheduler;
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_this.debouncedSubscription = null;
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_this.lastValue = null;
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_this.hasValue = false;
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return _this;
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}
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DebounceTimeSubscriber.prototype._next = function (value) {
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this.clearDebounce();
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this.lastValue = value;
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this.hasValue = true;
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this.add(this.debouncedSubscription = this.scheduler.schedule(dispatchNext, this.dueTime, this));
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};
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DebounceTimeSubscriber.prototype._complete = function () {
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this.debouncedNext();
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this.destination.complete();
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};
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DebounceTimeSubscriber.prototype.debouncedNext = function () {
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this.clearDebounce();
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if (this.hasValue) {
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var lastValue = this.lastValue;
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this.lastValue = null;
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this.hasValue = false;
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this.destination.next(lastValue);
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}
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};
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DebounceTimeSubscriber.prototype.clearDebounce = function () {
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var debouncedSubscription = this.debouncedSubscription;
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if (debouncedSubscription !== null) {
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this.remove(debouncedSubscription);
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debouncedSubscription.unsubscribe();
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this.debouncedSubscription = null;
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}
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};
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return DebounceTimeSubscriber;
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}(Subscriber));
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function dispatchNext(subscriber) {
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subscriber.debouncedNext();
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}
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//# sourceMappingURL=debounceTime.js.map
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