# Code coverage report for RxJS/dist/cjs/operators/windowWhen.js

## Statements: 89.61% (69 / 77) Branches: 63.64% (14 / 22) Functions: 83.33% (15 / 18) Lines: 91.3% (63 / 69) Ignored: none

All files » RxJS/dist/cjs/operators/ » windowWhen.js

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    1'use strict';

    exports.__esModule = true;
    exports['default'] = window;

    function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

    function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

    function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

    var _Subscriber3 = require('../Subscriber');

    var _Subscriber4 = _interopRequireDefault(_Subscriber3);

    var _Subject = require('../Subject');

    var _Subject2 = _interopRequireDefault(_Subject);

    var _Subscription = require('../Subscription');

    var _Subscription2 = _interopRequireDefault(_Subscription);

    var _utilTryCatch = require('../util/tryCatch');

    var _utilTryCatch2 = _interopRequireDefault(_utilTryCatch);

    var _utilErrorObject = require('../util/errorObject');

    function window(closingSelector) {
        return this.lift(new WindowOperator(closingSelector));
    }

    var WindowOperator = (function () {
        function WindowOperator(closingSelector) {
            _classCallCheck(this, WindowOperator);

            this.closingSelector = closingSelector;
        }

        WindowOperator.prototype.call = function call(subscriber) {
            return new WindowSubscriber(subscriber, this.closingSelector);
        };

        return WindowOperator;
    })();

    var WindowSubscriber = (function (_Subscriber) {
        _inherits(WindowSubscriber, _Subscriber);

        function WindowSubscriber(destination, closingSelector) {
            _classCallCheck(this, WindowSubscriber);

            _Subscriber.call(this, destination);
            this.closingSelector = closingSelector;
            this.window = new _Subject2['default']();
            this.openWindow();
        }

        WindowSubscriber.prototype._next = function _next(value) {
            this.window.next(value);
        };

        WindowSubscriber.prototype._error = function _error(err) {
            this.window.error(err);
            this.destination.error(err);
        };

        WindowSubscriber.prototype._complete = function _complete() {
            this.window.complete();
            this.destination.complete();
        };

        WindowSubscriber.prototype.openWindow = function openWindow() {
            var prevClosingNotification = this.closingNotification;
            if (prevClosingNotification) {
                this.remove(prevClosingNotification);
                prevClosingNotification.unsubscribe();
            }
            var prevWindow = this.window;
            Eif (prevWindow) {
                prevWindow.complete();
            }
            this.destination.next(this.window = new _Subject2['default']());
            var closingNotifier = _utilTryCatch2['default'](this.closingSelector)();
            Iif (closingNotifier === _utilErrorObject.errorObject) {
                var err = closingNotifier.e;
                this.destination.error(err);
                this.window.error(err);
            } else {
                var closingNotification = this.closingNotification = new _Subscription2['default']();
                this.add(closingNotification.add(closingNotifier._subscribe(new WindowClosingNotifierSubscriber(this))));
            }
        };

        return WindowSubscriber;
    })(_Subscriber4['default']);

    var WindowClosingNotifierSubscriber = (function (_Subscriber2) {
        _inherits(WindowClosingNotifierSubscriber, _Subscriber2);

        function WindowClosingNotifierSubscriber(parent) {
            _classCallCheck(this, WindowClosingNotifierSubscriber);

            _Subscriber2.call(this, null);
            this.parent = parent;
        }

        WindowClosingNotifierSubscriber.prototype._next = function _next() {
            this.parent.openWindow();
        };

        WindowClosingNotifierSubscriber.prototype._error = function _error(err) {
            this.parent.error(err);
        };

        WindowClosingNotifierSubscriber.prototype._complete = function _complete() {
            // noop
        };

        return WindowClosingNotifierSubscriber;
    })(_Subscriber4['default']);

    module.exports = exports['default'];