| import { Subscription } from '../Subscription'; |
| import { OuterSubscriber } from '../OuterSubscriber'; |
| import { subscribeToResult } from '../util/subscribeToResult'; |
| export function bufferWhen(closingSelector) { |
| return function (source) { |
| return source.lift(new BufferWhenOperator(closingSelector)); |
| }; |
| } |
| class BufferWhenOperator { |
| constructor(closingSelector) { |
| this.closingSelector = closingSelector; |
| } |
| call(subscriber, source) { |
| return source.subscribe(new BufferWhenSubscriber(subscriber, this.closingSelector)); |
| } |
| } |
| class BufferWhenSubscriber extends OuterSubscriber { |
| constructor(destination, closingSelector) { |
| super(destination); |
| this.closingSelector = closingSelector; |
| this.subscribing = false; |
| this.openBuffer(); |
| } |
| _next(value) { |
| this.buffer.push(value); |
| } |
| _complete() { |
| const buffer = this.buffer; |
| if (buffer) { |
| this.destination.next(buffer); |
| } |
| super._complete(); |
| } |
| _unsubscribe() { |
| this.buffer = null; |
| this.subscribing = false; |
| } |
| notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
| this.openBuffer(); |
| } |
| notifyComplete() { |
| if (this.subscribing) { |
| this.complete(); |
| } |
| else { |
| this.openBuffer(); |
| } |
| } |
| openBuffer() { |
| let { closingSubscription } = this; |
| if (closingSubscription) { |
| this.remove(closingSubscription); |
| closingSubscription.unsubscribe(); |
| } |
| const buffer = this.buffer; |
| if (this.buffer) { |
| this.destination.next(buffer); |
| } |
| this.buffer = []; |
| let closingNotifier; |
| try { |
| const { closingSelector } = this; |
| closingNotifier = closingSelector(); |
| } |
| catch (err) { |
| return this.error(err); |
| } |
| closingSubscription = new Subscription(); |
| this.closingSubscription = closingSubscription; |
| this.add(closingSubscription); |
| this.subscribing = true; |
| closingSubscription.add(subscribeToResult(this, closingNotifier)); |
| this.subscribing = false; |
| } |
| } |
| //# sourceMappingURL=bufferWhen.js.map |