Every new change

node_modules/rxjs/_esm2015/internal/operators/window.js

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+import { Subject } from '../Subject';
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+export function window(windowBoundaries) {
+    return function windowOperatorFunction(source) {
+        return source.lift(new WindowOperator(windowBoundaries));
+    };
+}
+class WindowOperator {
+    constructor(windowBoundaries) {
+        this.windowBoundaries = windowBoundaries;
+    }
+    call(subscriber, source) {
+        const windowSubscriber = new WindowSubscriber(subscriber);
+        const sourceSubscription = source.subscribe(windowSubscriber);
+        if (!sourceSubscription.closed) {
+            windowSubscriber.add(subscribeToResult(windowSubscriber, this.windowBoundaries));
+        }
+        return sourceSubscription;
+    }
+}
+class WindowSubscriber extends OuterSubscriber {
+    constructor(destination) {
+        super(destination);
+        this.window = new Subject();
+        destination.next(this.window);
+    }
+    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+        this.openWindow();
+    }
+    notifyError(error, innerSub) {
+        this._error(error);
+    }
+    notifyComplete(innerSub) {
+        this._complete();
+    }
+    _next(value) {
+        this.window.next(value);
+    }
+    _error(err) {
+        this.window.error(err);
+        this.destination.error(err);
+    }
+    _complete() {
+        this.window.complete();
+        this.destination.complete();
+    }
+    _unsubscribe() {
+        this.window = null;
+    }
+    openWindow() {
+        const prevWindow = this.window;
+        if (prevWindow) {
+            prevWindow.complete();
+        }
+        const destination = this.destination;
+        const newWindow = this.window = new Subject();
+        destination.next(newWindow);
+    }
+}
+//# sourceMappingURL=window.js.map