--- /dev/null
+/** PURE_IMPORTS_START tslib,_Subscriber,_Observable,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
+import * as tslib_1 from "tslib";
+import { Subscriber } from '../Subscriber';
+import { Observable } from '../Observable';
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+export function delayWhen(delayDurationSelector, subscriptionDelay) {
+ if (subscriptionDelay) {
+ return function (source) {
+ return new SubscriptionDelayObservable(source, subscriptionDelay)
+ .lift(new DelayWhenOperator(delayDurationSelector));
+ };
+ }
+ return function (source) { return source.lift(new DelayWhenOperator(delayDurationSelector)); };
+}
+var DelayWhenOperator = /*@__PURE__*/ (function () {
+ function DelayWhenOperator(delayDurationSelector) {
+ this.delayDurationSelector = delayDurationSelector;
+ }
+ DelayWhenOperator.prototype.call = function (subscriber, source) {
+ return source.subscribe(new DelayWhenSubscriber(subscriber, this.delayDurationSelector));
+ };
+ return DelayWhenOperator;
+}());
+var DelayWhenSubscriber = /*@__PURE__*/ (function (_super) {
+ tslib_1.__extends(DelayWhenSubscriber, _super);
+ function DelayWhenSubscriber(destination, delayDurationSelector) {
+ var _this = _super.call(this, destination) || this;
+ _this.delayDurationSelector = delayDurationSelector;
+ _this.completed = false;
+ _this.delayNotifierSubscriptions = [];
+ _this.index = 0;
+ return _this;
+ }
+ DelayWhenSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+ this.destination.next(outerValue);
+ this.removeSubscription(innerSub);
+ this.tryComplete();
+ };
+ DelayWhenSubscriber.prototype.notifyError = function (error, innerSub) {
+ this._error(error);
+ };
+ DelayWhenSubscriber.prototype.notifyComplete = function (innerSub) {
+ var value = this.removeSubscription(innerSub);
+ if (value) {
+ this.destination.next(value);
+ }
+ this.tryComplete();
+ };
+ DelayWhenSubscriber.prototype._next = function (value) {
+ var index = this.index++;
+ try {
+ var delayNotifier = this.delayDurationSelector(value, index);
+ if (delayNotifier) {
+ this.tryDelay(delayNotifier, value);
+ }
+ }
+ catch (err) {
+ this.destination.error(err);
+ }
+ };
+ DelayWhenSubscriber.prototype._complete = function () {
+ this.completed = true;
+ this.tryComplete();
+ this.unsubscribe();
+ };
+ DelayWhenSubscriber.prototype.removeSubscription = function (subscription) {
+ subscription.unsubscribe();
+ var subscriptionIdx = this.delayNotifierSubscriptions.indexOf(subscription);
+ if (subscriptionIdx !== -1) {
+ this.delayNotifierSubscriptions.splice(subscriptionIdx, 1);
+ }
+ return subscription.outerValue;
+ };
+ DelayWhenSubscriber.prototype.tryDelay = function (delayNotifier, value) {
+ var notifierSubscription = subscribeToResult(this, delayNotifier, value);
+ if (notifierSubscription && !notifierSubscription.closed) {
+ var destination = this.destination;
+ destination.add(notifierSubscription);
+ this.delayNotifierSubscriptions.push(notifierSubscription);
+ }
+ };
+ DelayWhenSubscriber.prototype.tryComplete = function () {
+ if (this.completed && this.delayNotifierSubscriptions.length === 0) {
+ this.destination.complete();
+ }
+ };
+ return DelayWhenSubscriber;
+}(OuterSubscriber));
+var SubscriptionDelayObservable = /*@__PURE__*/ (function (_super) {
+ tslib_1.__extends(SubscriptionDelayObservable, _super);
+ function SubscriptionDelayObservable(source, subscriptionDelay) {
+ var _this = _super.call(this) || this;
+ _this.source = source;
+ _this.subscriptionDelay = subscriptionDelay;
+ return _this;
+ }
+ SubscriptionDelayObservable.prototype._subscribe = function (subscriber) {
+ this.subscriptionDelay.subscribe(new SubscriptionDelaySubscriber(subscriber, this.source));
+ };
+ return SubscriptionDelayObservable;
+}(Observable));
+var SubscriptionDelaySubscriber = /*@__PURE__*/ (function (_super) {
+ tslib_1.__extends(SubscriptionDelaySubscriber, _super);
+ function SubscriptionDelaySubscriber(parent, source) {
+ var _this = _super.call(this) || this;
+ _this.parent = parent;
+ _this.source = source;
+ _this.sourceSubscribed = false;
+ return _this;
+ }
+ SubscriptionDelaySubscriber.prototype._next = function (unused) {
+ this.subscribeToSource();
+ };
+ SubscriptionDelaySubscriber.prototype._error = function (err) {
+ this.unsubscribe();
+ this.parent.error(err);
+ };
+ SubscriptionDelaySubscriber.prototype._complete = function () {
+ this.unsubscribe();
+ this.subscribeToSource();
+ };
+ SubscriptionDelaySubscriber.prototype.subscribeToSource = function () {
+ if (!this.sourceSubscribed) {
+ this.sourceSubscribed = true;
+ this.unsubscribe();
+ this.source.subscribe(this.parent);
+ }
+ };
+ return SubscriptionDelaySubscriber;
+}(Subscriber));
+//# sourceMappingURL=delayWhen.js.map