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