43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
import { ReplaySubject } from '../ReplaySubject';
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/**
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* @method shareReplay
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* @owner Observable
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*/
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export function shareReplay(bufferSize, windowTime, scheduler) {
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return (source) => source.lift(shareReplayOperator(bufferSize, windowTime, scheduler));
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}
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function shareReplayOperator(bufferSize, windowTime, scheduler) {
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let subject;
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let refCount = 0;
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let subscription;
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let hasError = false;
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let isComplete = false;
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return function shareReplayOperation(source) {
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refCount++;
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if (!subject || hasError) {
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hasError = false;
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subject = new ReplaySubject(bufferSize, windowTime, scheduler);
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subscription = source.subscribe({
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next(value) { subject.next(value); },
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error(err) {
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hasError = true;
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subject.error(err);
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},
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complete() {
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isComplete = true;
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subject.complete();
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},
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});
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}
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const innerSub = subject.subscribe(this);
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return () => {
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refCount--;
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innerSub.unsubscribe();
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if (subscription && refCount === 0 && isComplete) {
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subscription.unsubscribe();
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}
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};
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};
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}
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;
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//# sourceMappingURL=shareReplay.js.map
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