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node_modules/rxjs/_esm2015/operators/repeatWhen.js

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+import { Subject } from '../Subject';
+import { tryCatch } from '../util/tryCatch';
+import { errorObject } from '../util/errorObject';
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+/**
+ * Returns an Observable that mirrors the source Observable with the exception of a `complete`. If the source
+ * Observable calls `complete`, this method will emit to the Observable returned from `notifier`. If that Observable
+ * calls `complete` or `error`, then this method will call `complete` or `error` on the child subscription. Otherwise
+ * this method will resubscribe to the source Observable.
+ *
+ * <img src="./img/repeatWhen.png" width="100%">
+ *
+ * @param {function(notifications: Observable): Observable} notifier - Receives an Observable of notifications with
+ * which a user can `complete` or `error`, aborting the repetition.
+ * @return {Observable} The source Observable modified with repeat logic.
+ * @method repeatWhen
+ * @owner Observable
+ */
+export function repeatWhen(notifier) {
+    return (source) => source.lift(new RepeatWhenOperator(notifier));
+}
+class RepeatWhenOperator {
+    constructor(notifier) {
+        this.notifier = notifier;
+    }
+    call(subscriber, source) {
+        return source.subscribe(new RepeatWhenSubscriber(subscriber, this.notifier, source));
+    }
+}
+/**
+ * We need this JSDoc comment for affecting ESDoc.
+ * @ignore
+ * @extends {Ignored}
+ */
+class RepeatWhenSubscriber extends OuterSubscriber {
+    constructor(destination, notifier, source) {
+        super(destination);
+        this.notifier = notifier;
+        this.source = source;
+        this.sourceIsBeingSubscribedTo = true;
+    }
+    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+        this.sourceIsBeingSubscribedTo = true;
+        this.source.subscribe(this);
+    }
+    notifyComplete(innerSub) {
+        if (this.sourceIsBeingSubscribedTo === false) {
+            return super.complete();
+        }
+    }
+    complete() {
+        this.sourceIsBeingSubscribedTo = false;
+        if (!this.isStopped) {
+            if (!this.retries) {
+                this.subscribeToRetries();
+            }
+            if (!this.retriesSubscription || this.retriesSubscription.closed) {
+                return super.complete();
+            }
+            this._unsubscribeAndRecycle();
+            this.notifications.next();
+        }
+    }
+    /** @deprecated internal use only */ _unsubscribe() {
+        const { notifications, retriesSubscription } = this;
+        if (notifications) {
+            notifications.unsubscribe();
+            this.notifications = null;
+        }
+        if (retriesSubscription) {
+            retriesSubscription.unsubscribe();
+            this.retriesSubscription = null;
+        }
+        this.retries = null;
+    }
+    /** @deprecated internal use only */ _unsubscribeAndRecycle() {
+        const { notifications, retries, retriesSubscription } = this;
+        this.notifications = null;
+        this.retries = null;
+        this.retriesSubscription = null;
+        super._unsubscribeAndRecycle();
+        this.notifications = notifications;
+        this.retries = retries;
+        this.retriesSubscription = retriesSubscription;
+        return this;
+    }
+    subscribeToRetries() {
+        this.notifications = new Subject();
+        const retries = tryCatch(this.notifier)(this.notifications);
+        if (retries === errorObject) {
+            return super.complete();
+        }
+        this.retries = retries;
+        this.retriesSubscription = subscribeToResult(this, retries);
+    }
+}
+//# sourceMappingURL=repeatWhen.js.map