windowToggle.js

/** PURE_IMPORTS_START tslib,_Subject,_Subscription,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
import * as tslib_1 from "tslib";
import { Subject } from '../Subject';
import { Subscription } from '../Subscription';
import { OuterSubscriber } from '../OuterSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
export function windowToggle(openings, closingSelector) {
    return function (source) { return source.lift(new WindowToggleOperator(openings, closingSelector)); };
}
var WindowToggleOperator = /*@__PURE__*/ (function () {
    function WindowToggleOperator(openings, closingSelector) {
        this.openings = openings;
        this.closingSelector = closingSelector;
    }
    WindowToggleOperator.prototype.call = function (subscriber, source) {
        return source.subscribe(new WindowToggleSubscriber(subscriber, this.openings, this.closingSelector));
    };
    return WindowToggleOperator;
}());
var WindowToggleSubscriber = /*@__PURE__*/ (function (_super) {
    tslib_1.__extends(WindowToggleSubscriber, _super);
    function WindowToggleSubscriber(destination, openings, closingSelector) {
        var _this = _super.call(this, destination) || this;
        _this.openings = openings;
        _this.closingSelector = closingSelector;
        _this.contexts = [];
        _this.add(_this.openSubscription = subscribeToResult(_this, openings, openings));
        return _this;
    }
    WindowToggleSubscriber.prototype._next = function (value) {
        var contexts = this.contexts;
        if (contexts) {
            var len = contexts.length;
            for (var i = 0; i < len; i++) {
                contexts[i].window.next(value);
            }
        }
    };
    WindowToggleSubscriber.prototype._error = function (err) {
        var contexts = this.contexts;
        this.contexts = null;
        if (contexts) {
            var len = contexts.length;
            var index = -1;
            while (++index < len) {
                var context_1 = contexts[index];
                context_1.window.error(err);
                context_1.subscription.unsubscribe();
            }
        }
        _super.prototype._error.call(this, err);
    };
    WindowToggleSubscriber.prototype._complete = function () {
        var contexts = this.contexts;
        this.contexts = null;
        if (contexts) {
            var len = contexts.length;
            var index = -1;
            while (++index < len) {
                var context_2 = contexts[index];
                context_2.window.complete();
                context_2.subscription.unsubscribe();
            }
        }
        _super.prototype._complete.call(this);
    };
    WindowToggleSubscriber.prototype._unsubscribe = function () {
        var contexts = this.contexts;
        this.contexts = null;
        if (contexts) {
            var len = contexts.length;
            var index = -1;
            while (++index < len) {
                var context_3 = contexts[index];
                context_3.window.unsubscribe();
                context_3.subscription.unsubscribe();
            }
        }
    };
    WindowToggleSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
        if (outerValue === this.openings) {
            var closingNotifier = void 0;
            try {
                var closingSelector = this.closingSelector;
                closingNotifier = closingSelector(innerValue);
            }
            catch (e) {
                return this.error(e);
            }
            var window_1 = new Subject();
            var subscription = new Subscription();
            var context_4 = { window: window_1, subscription: subscription };
            this.contexts.push(context_4);
            var innerSubscription = subscribeToResult(this, closingNotifier, context_4);
            if (innerSubscription.closed) {
                this.closeWindow(this.contexts.length - 1);
            }
            else {
                innerSubscription.context = context_4;
                subscription.add(innerSubscription);
            }
            this.destination.next(window_1);
        }
        else {
            this.closeWindow(this.contexts.indexOf(outerValue));
        }
    };
    WindowToggleSubscriber.prototype.notifyError = function (err) {
        this.error(err);
    };
    WindowToggleSubscriber.prototype.notifyComplete = function (inner) {
        if (inner !== this.openSubscription) {
            this.closeWindow(this.contexts.indexOf(inner.context));
        }
    };
    WindowToggleSubscriber.prototype.closeWindow = function (index) {
        if (index === -1) {
            return;
        }
        var contexts = this.contexts;
        var context = contexts[index];
        var window = context.window, subscription = context.subscription;
        contexts.splice(index, 1);
        window.complete();
        subscription.unsubscribe();
    };
    return WindowToggleSubscriber;
}(OuterSubscriber));
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