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keksAccountGUI/node_modulesOLD/rxjs/_esm2015/internal/operators/debounce.js

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2019-08-11 18:48:02 +00:00
import { OuterSubscriber } from '../OuterSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
export function debounce(durationSelector) {
return (source) => source.lift(new DebounceOperator(durationSelector));
}
class DebounceOperator {
constructor(durationSelector) {
this.durationSelector = durationSelector;
}
call(subscriber, source) {
return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
}
}
class DebounceSubscriber extends OuterSubscriber {
constructor(destination, durationSelector) {
super(destination);
this.durationSelector = durationSelector;
this.hasValue = false;
this.durationSubscription = null;
}
_next(value) {
try {
const result = this.durationSelector.call(this, value);
if (result) {
this._tryNext(value, result);
}
}
catch (err) {
this.destination.error(err);
}
}
_complete() {
this.emitValue();
this.destination.complete();
}
_tryNext(value, duration) {
let subscription = this.durationSubscription;
this.value = value;
this.hasValue = true;
if (subscription) {
subscription.unsubscribe();
this.remove(subscription);
}
subscription = subscribeToResult(this, duration);
if (subscription && !subscription.closed) {
this.add(this.durationSubscription = subscription);
}
}
notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
this.emitValue();
}
notifyComplete() {
this.emitValue();
}
emitValue() {
if (this.hasValue) {
const value = this.value;
const subscription = this.durationSubscription;
if (subscription) {
this.durationSubscription = null;
subscription.unsubscribe();
this.remove(subscription);
}
this.value = null;
this.hasValue = false;
super._next(value);
}
}
}
//# sourceMappingURL=debounce.js.map