38 lines
1.5 KiB
JavaScript
38 lines
1.5 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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import { innerFrom } from '../observable/innerFrom';
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export function windowWhen(closingSelector) {
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return operate((source, subscriber) => {
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let window;
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let closingSubscriber;
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const handleError = (err) => {
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window.error(err);
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subscriber.error(err);
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};
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const openWindow = () => {
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closingSubscriber === null || closingSubscriber === void 0 ? void 0 : closingSubscriber.unsubscribe();
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window === null || window === void 0 ? void 0 : window.complete();
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window = new Subject();
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subscriber.next(window.asObservable());
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let closingNotifier;
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try {
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closingNotifier = innerFrom(closingSelector());
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}
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catch (err) {
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handleError(err);
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return;
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}
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closingNotifier.subscribe((closingSubscriber = createOperatorSubscriber(subscriber, openWindow, openWindow, handleError)));
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};
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openWindow();
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source.subscribe(createOperatorSubscriber(subscriber, (value) => window.next(value), () => {
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window.complete();
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subscriber.complete();
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}, handleError, () => {
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closingSubscriber === null || closingSubscriber === void 0 ? void 0 : closingSubscriber.unsubscribe();
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window = null;
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}));
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});
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}
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//# sourceMappingURL=windowWhen.js.map
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