| import { Subject } from '../Subject'; |
| import { OuterSubscriber } from '../OuterSubscriber'; |
| import { subscribeToResult } from '../util/subscribeToResult'; |
| export function window(windowBoundaries) { |
| return function windowOperatorFunction(source) { |
| return source.lift(new WindowOperator(windowBoundaries)); |
| }; |
| } |
| class WindowOperator { |
| constructor(windowBoundaries) { |
| this.windowBoundaries = windowBoundaries; |
| } |
| call(subscriber, source) { |
| const windowSubscriber = new WindowSubscriber(subscriber); |
| const sourceSubscription = source.subscribe(windowSubscriber); |
| if (!sourceSubscription.closed) { |
| windowSubscriber.add(subscribeToResult(windowSubscriber, this.windowBoundaries)); |
| } |
| return sourceSubscription; |
| } |
| } |
| class WindowSubscriber extends OuterSubscriber { |
| constructor(destination) { |
| super(destination); |
| this.window = new Subject(); |
| destination.next(this.window); |
| } |
| notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
| this.openWindow(); |
| } |
| notifyError(error, innerSub) { |
| this._error(error); |
| } |
| notifyComplete(innerSub) { |
| this._complete(); |
| } |
| _next(value) { |
| this.window.next(value); |
| } |
| _error(err) { |
| this.window.error(err); |
| this.destination.error(err); |
| } |
| _complete() { |
| this.window.complete(); |
| this.destination.complete(); |
| } |
| _unsubscribe() { |
| this.window = null; |
| } |
| openWindow() { |
| const prevWindow = this.window; |
| if (prevWindow) { |
| prevWindow.complete(); |
| } |
| const destination = this.destination; |
| const newWindow = this.window = new Subject(); |
| destination.next(newWindow); |
| } |
| } |
| //# sourceMappingURL=window.js.map |