| /** PURE_IMPORTS_START tslib,_Subject,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */ | 
| import * as tslib_1 from "tslib"; | 
| import { Subject } from '../Subject'; | 
| import { OuterSubscriber } from '../OuterSubscriber'; | 
| import { subscribeToResult } from '../util/subscribeToResult'; | 
| export function windowWhen(closingSelector) { | 
|     return function windowWhenOperatorFunction(source) { | 
|         return source.lift(new WindowOperator(closingSelector)); | 
|     }; | 
| } | 
| var WindowOperator = /*@__PURE__*/ (function () { | 
|     function WindowOperator(closingSelector) { | 
|         this.closingSelector = closingSelector; | 
|     } | 
|     WindowOperator.prototype.call = function (subscriber, source) { | 
|         return source.subscribe(new WindowSubscriber(subscriber, this.closingSelector)); | 
|     }; | 
|     return WindowOperator; | 
| }()); | 
| var WindowSubscriber = /*@__PURE__*/ (function (_super) { | 
|     tslib_1.__extends(WindowSubscriber, _super); | 
|     function WindowSubscriber(destination, closingSelector) { | 
|         var _this = _super.call(this, destination) || this; | 
|         _this.destination = destination; | 
|         _this.closingSelector = closingSelector; | 
|         _this.openWindow(); | 
|         return _this; | 
|     } | 
|     WindowSubscriber.prototype.notifyNext = function (_outerValue, _innerValue, _outerIndex, _innerIndex, innerSub) { | 
|         this.openWindow(innerSub); | 
|     }; | 
|     WindowSubscriber.prototype.notifyError = function (error) { | 
|         this._error(error); | 
|     }; | 
|     WindowSubscriber.prototype.notifyComplete = function (innerSub) { | 
|         this.openWindow(innerSub); | 
|     }; | 
|     WindowSubscriber.prototype._next = function (value) { | 
|         this.window.next(value); | 
|     }; | 
|     WindowSubscriber.prototype._error = function (err) { | 
|         this.window.error(err); | 
|         this.destination.error(err); | 
|         this.unsubscribeClosingNotification(); | 
|     }; | 
|     WindowSubscriber.prototype._complete = function () { | 
|         this.window.complete(); | 
|         this.destination.complete(); | 
|         this.unsubscribeClosingNotification(); | 
|     }; | 
|     WindowSubscriber.prototype.unsubscribeClosingNotification = function () { | 
|         if (this.closingNotification) { | 
|             this.closingNotification.unsubscribe(); | 
|         } | 
|     }; | 
|     WindowSubscriber.prototype.openWindow = function (innerSub) { | 
|         if (innerSub === void 0) { | 
|             innerSub = null; | 
|         } | 
|         if (innerSub) { | 
|             this.remove(innerSub); | 
|             innerSub.unsubscribe(); | 
|         } | 
|         var prevWindow = this.window; | 
|         if (prevWindow) { | 
|             prevWindow.complete(); | 
|         } | 
|         var window = this.window = new Subject(); | 
|         this.destination.next(window); | 
|         var closingNotifier; | 
|         try { | 
|             var closingSelector = this.closingSelector; | 
|             closingNotifier = closingSelector(); | 
|         } | 
|         catch (e) { | 
|             this.destination.error(e); | 
|             this.window.error(e); | 
|             return; | 
|         } | 
|         this.add(this.closingNotification = subscribeToResult(this, closingNotifier)); | 
|     }; | 
|     return WindowSubscriber; | 
| }(OuterSubscriber)); | 
| //# sourceMappingURL=windowWhen.js.map |