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node_modules/rxjs/_esm5/internal/operators/delayWhen.js

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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