45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
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import { Subject } from '../Subject';
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import { operate } from '../util/lift';
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import { createOperatorSubscriber } from './OperatorSubscriber';
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export function repeatWhen(notifier) {
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return operate((source, subscriber) => {
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let innerSub;
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let syncResub = false;
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let completions$;
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let isNotifierComplete = false;
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let isMainComplete = false;
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const checkComplete = () => isMainComplete && isNotifierComplete && (subscriber.complete(), true);
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const getCompletionSubject = () => {
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if (!completions$) {
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completions$ = new Subject();
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notifier(completions$).subscribe(createOperatorSubscriber(subscriber, () => {
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if (innerSub) {
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subscribeForRepeatWhen();
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}
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else {
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syncResub = true;
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}
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}, () => {
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isNotifierComplete = true;
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checkComplete();
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}));
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}
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return completions$;
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};
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const subscribeForRepeatWhen = () => {
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isMainComplete = false;
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innerSub = source.subscribe(createOperatorSubscriber(subscriber, undefined, () => {
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isMainComplete = true;
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!checkComplete() && getCompletionSubject().next();
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}));
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if (syncResub) {
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innerSub.unsubscribe();
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innerSub = null;
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syncResub = false;
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subscribeForRepeatWhen();
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}
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};
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subscribeForRepeatWhen();
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});
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}
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//# sourceMappingURL=repeatWhen.js.map
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