| import { Subscription } from '../Subscription'; |
| import { subscribeToResult } from '../util/subscribeToResult'; |
| import { OuterSubscriber } from '../OuterSubscriber'; |
| export function bufferToggle(openings, closingSelector) { |
| return function bufferToggleOperatorFunction(source) { |
| return source.lift(new BufferToggleOperator(openings, closingSelector)); |
| }; |
| } |
| class BufferToggleOperator { |
| constructor(openings, closingSelector) { |
| this.openings = openings; |
| this.closingSelector = closingSelector; |
| } |
| call(subscriber, source) { |
| return source.subscribe(new BufferToggleSubscriber(subscriber, this.openings, this.closingSelector)); |
| } |
| } |
| class BufferToggleSubscriber extends OuterSubscriber { |
| constructor(destination, openings, closingSelector) { |
| super(destination); |
| this.openings = openings; |
| this.closingSelector = closingSelector; |
| this.contexts = []; |
| this.add(subscribeToResult(this, openings)); |
| } |
| _next(value) { |
| const contexts = this.contexts; |
| const len = contexts.length; |
| for (let i = 0; i < len; i++) { |
| contexts[i].buffer.push(value); |
| } |
| } |
| _error(err) { |
| const contexts = this.contexts; |
| while (contexts.length > 0) { |
| const context = contexts.shift(); |
| context.subscription.unsubscribe(); |
| context.buffer = null; |
| context.subscription = null; |
| } |
| this.contexts = null; |
| super._error(err); |
| } |
| _complete() { |
| const contexts = this.contexts; |
| while (contexts.length > 0) { |
| const context = contexts.shift(); |
| this.destination.next(context.buffer); |
| context.subscription.unsubscribe(); |
| context.buffer = null; |
| context.subscription = null; |
| } |
| this.contexts = null; |
| super._complete(); |
| } |
| notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
| outerValue ? this.closeBuffer(outerValue) : this.openBuffer(innerValue); |
| } |
| notifyComplete(innerSub) { |
| this.closeBuffer(innerSub.context); |
| } |
| openBuffer(value) { |
| try { |
| const closingSelector = this.closingSelector; |
| const closingNotifier = closingSelector.call(this, value); |
| if (closingNotifier) { |
| this.trySubscribe(closingNotifier); |
| } |
| } |
| catch (err) { |
| this._error(err); |
| } |
| } |
| closeBuffer(context) { |
| const contexts = this.contexts; |
| if (contexts && context) { |
| const { buffer, subscription } = context; |
| this.destination.next(buffer); |
| contexts.splice(contexts.indexOf(context), 1); |
| this.remove(subscription); |
| subscription.unsubscribe(); |
| } |
| } |
| trySubscribe(closingNotifier) { |
| const contexts = this.contexts; |
| const buffer = []; |
| const subscription = new Subscription(); |
| const context = { buffer, subscription }; |
| contexts.push(context); |
| const innerSubscription = subscribeToResult(this, closingNotifier, context); |
| if (!innerSubscription || innerSubscription.closed) { |
| this.closeBuffer(context); |
| } |
| else { |
| innerSubscription.context = context; |
| this.add(innerSubscription); |
| subscription.add(innerSubscription); |
| } |
| } |
| } |
| //# sourceMappingURL=bufferToggle.js.map |