75 lines
2.7 KiB
JavaScript
75 lines
2.7 KiB
JavaScript
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/** PURE_IMPORTS_START tslib,_innerSubscribe PURE_IMPORTS_END */
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import * as tslib_1 from "tslib";
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import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
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export function debounce(durationSelector) {
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return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
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}
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var DebounceOperator = /*@__PURE__*/ (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 = /*@__PURE__*/ (function (_super) {
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tslib_1.__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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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 = innerSubscribe(duration, new SimpleInnerSubscriber(this));
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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 () {
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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 = undefined;
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subscription.unsubscribe();
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this.remove(subscription);
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}
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this.value = undefined;
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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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}(SimpleOuterSubscriber));
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//# sourceMappingURL=debounce.js.map
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