| import { Subscriber } from '../Subscriber'; |
| import { Subject } from '../Subject'; |
| export function windowCount(windowSize, startWindowEvery = 0) { |
| return function windowCountOperatorFunction(source) { |
| return source.lift(new WindowCountOperator(windowSize, startWindowEvery)); |
| }; |
| } |
| class WindowCountOperator { |
| constructor(windowSize, startWindowEvery) { |
| this.windowSize = windowSize; |
| this.startWindowEvery = startWindowEvery; |
| } |
| call(subscriber, source) { |
| return source.subscribe(new WindowCountSubscriber(subscriber, this.windowSize, this.startWindowEvery)); |
| } |
| } |
| class WindowCountSubscriber extends Subscriber { |
| constructor(destination, windowSize, startWindowEvery) { |
| super(destination); |
| this.destination = destination; |
| this.windowSize = windowSize; |
| this.startWindowEvery = startWindowEvery; |
| this.windows = [new Subject()]; |
| this.count = 0; |
| destination.next(this.windows[0]); |
| } |
| _next(value) { |
| const startWindowEvery = (this.startWindowEvery > 0) ? this.startWindowEvery : this.windowSize; |
| const destination = this.destination; |
| const windowSize = this.windowSize; |
| const windows = this.windows; |
| const len = windows.length; |
| for (let i = 0; i < len && !this.closed; i++) { |
| windows[i].next(value); |
| } |
| const c = this.count - windowSize + 1; |
| if (c >= 0 && c % startWindowEvery === 0 && !this.closed) { |
| windows.shift().complete(); |
| } |
| if (++this.count % startWindowEvery === 0 && !this.closed) { |
| const window = new Subject(); |
| windows.push(window); |
| destination.next(window); |
| } |
| } |
| _error(err) { |
| const windows = this.windows; |
| if (windows) { |
| while (windows.length > 0 && !this.closed) { |
| windows.shift().error(err); |
| } |
| } |
| this.destination.error(err); |
| } |
| _complete() { |
| const windows = this.windows; |
| if (windows) { |
| while (windows.length > 0 && !this.closed) { |
| windows.shift().complete(); |
| } |
| } |
| this.destination.complete(); |
| } |
| _unsubscribe() { |
| this.count = 0; |
| this.windows = null; |
| } |
| } |
| //# sourceMappingURL=windowCount.js.map |