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/** 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
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