var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
define(["require", "exports", '../Subscriber', '../Subject', '../Subscription', '../util/tryCatch', '../util/errorObject'], function (require, exports, Subscriber_1, Subject_1, Subscription_1, tryCatch_1, errorObject_1) {
    function window(closingSelector) {
        return this.lift(new WindowOperator(closingSelector));
    }
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.default = window;
    var WindowOperator = (function () {
        function WindowOperator(closingSelector) {
            this.closingSelector = closingSelector;
        }
        WindowOperator.prototype.call = function (subscriber) {
            return new WindowSubscriber(subscriber, this.closingSelector);
        };
        return WindowOperator;
    })();
    var WindowSubscriber = (function (_super) {
        __extends(WindowSubscriber, _super);
        function WindowSubscriber(destination, closingSelector) {
            _super.call(this, destination);
            this.closingSelector = closingSelector;
            this.window = new Subject_1.default();
            this.openWindow();
        }
        WindowSubscriber.prototype._next = function (value) {
            this.window.next(value);
        };
        WindowSubscriber.prototype._error = function (err) {
            this.window.error(err);
            this.destination.error(err);
        };
        WindowSubscriber.prototype._complete = function () {
            this.window.complete();
            this.destination.complete();
        };
        WindowSubscriber.prototype.openWindow = function () {
            var prevClosingNotification = this.closingNotification;
            if (prevClosingNotification) {
                this.remove(prevClosingNotification);
                prevClosingNotification.unsubscribe();
            }
            var prevWindow = this.window;
            if (prevWindow) {
                prevWindow.complete();
            }
            this.destination.next(this.window = new Subject_1.default());
            var closingNotifier = tryCatch_1.default(this.closingSelector)();
            if (closingNotifier === errorObject_1.errorObject) {
                var err = closingNotifier.e;
                this.destination.error(err);
                this.window.error(err);
            }
            else {
                var closingNotification = this.closingNotification = new Subscription_1.default();
                this.add(closingNotification.add(closingNotifier._subscribe(new WindowClosingNotifierSubscriber(this))));
            }
        };
        return WindowSubscriber;
    })(Subscriber_1.default);
    var WindowClosingNotifierSubscriber = (function (_super) {
        __extends(WindowClosingNotifierSubscriber, _super);
        function WindowClosingNotifierSubscriber(parent) {
            _super.call(this, null);
            this.parent = parent;
        }
        WindowClosingNotifierSubscriber.prototype._next = function () {
            this.parent.openWindow();
        };
        WindowClosingNotifierSubscriber.prototype._error = function (err) {
            this.parent.error(err);
        };
        WindowClosingNotifierSubscriber.prototype._complete = function () {
            // noop
        };
        return WindowClosingNotifierSubscriber;
    })(Subscriber_1.default);
});
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