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							146 lines
						
					
					
						
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							146 lines
						
					
					
						
							5.8 KiB
						
					
					
				"use strict"; | 
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var __extends = (this && this.__extends) || (function () { | 
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    var extendStatics = function (d, b) { | 
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        extendStatics = Object.setPrototypeOf || | 
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            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || | 
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            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; }; | 
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        return extendStatics(d, b); | 
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    } | 
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    return function (d, b) { | 
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        extendStatics(d, b); | 
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        function __() { this.constructor = d; } | 
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        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); | 
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    }; | 
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})(); | 
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Object.defineProperty(exports, "__esModule", { value: true }); | 
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var Subscriber_1 = require("../Subscriber"); | 
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var Observable_1 = require("../Observable"); | 
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var OuterSubscriber_1 = require("../OuterSubscriber"); | 
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var subscribeToResult_1 = require("../util/subscribeToResult"); | 
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function delayWhen(delayDurationSelector, subscriptionDelay) { | 
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    if (subscriptionDelay) { | 
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        return function (source) { | 
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            return new SubscriptionDelayObservable(source, subscriptionDelay) | 
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                .lift(new DelayWhenOperator(delayDurationSelector)); | 
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        }; | 
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    } | 
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    return function (source) { return source.lift(new DelayWhenOperator(delayDurationSelector)); }; | 
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} | 
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exports.delayWhen = delayWhen; | 
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var DelayWhenOperator = (function () { | 
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    function DelayWhenOperator(delayDurationSelector) { | 
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        this.delayDurationSelector = delayDurationSelector; | 
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    } | 
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    DelayWhenOperator.prototype.call = function (subscriber, source) { | 
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        return source.subscribe(new DelayWhenSubscriber(subscriber, this.delayDurationSelector)); | 
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    }; | 
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    return DelayWhenOperator; | 
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}()); | 
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var DelayWhenSubscriber = (function (_super) { | 
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    __extends(DelayWhenSubscriber, _super); | 
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    function DelayWhenSubscriber(destination, delayDurationSelector) { | 
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        var _this = _super.call(this, destination) || this; | 
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        _this.delayDurationSelector = delayDurationSelector; | 
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        _this.completed = false; | 
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        _this.delayNotifierSubscriptions = []; | 
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        _this.index = 0; | 
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        return _this; | 
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    } | 
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    DelayWhenSubscriber.prototype.notifyNext = function (outerValue, _innerValue, _outerIndex, _innerIndex, innerSub) { | 
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        this.destination.next(outerValue); | 
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        this.removeSubscription(innerSub); | 
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        this.tryComplete(); | 
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    }; | 
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    DelayWhenSubscriber.prototype.notifyError = function (error, innerSub) { | 
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        this._error(error); | 
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    }; | 
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    DelayWhenSubscriber.prototype.notifyComplete = function (innerSub) { | 
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        var value = this.removeSubscription(innerSub); | 
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        if (value) { | 
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            this.destination.next(value); | 
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        } | 
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        this.tryComplete(); | 
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    }; | 
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    DelayWhenSubscriber.prototype._next = function (value) { | 
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        var index = this.index++; | 
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        try { | 
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            var delayNotifier = this.delayDurationSelector(value, index); | 
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            if (delayNotifier) { | 
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                this.tryDelay(delayNotifier, value); | 
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            } | 
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        } | 
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        catch (err) { | 
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            this.destination.error(err); | 
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        } | 
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    }; | 
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    DelayWhenSubscriber.prototype._complete = function () { | 
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        this.completed = true; | 
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        this.tryComplete(); | 
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        this.unsubscribe(); | 
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    }; | 
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    DelayWhenSubscriber.prototype.removeSubscription = function (subscription) { | 
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        subscription.unsubscribe(); | 
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        var subscriptionIdx = this.delayNotifierSubscriptions.indexOf(subscription); | 
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        if (subscriptionIdx !== -1) { | 
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            this.delayNotifierSubscriptions.splice(subscriptionIdx, 1); | 
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        } | 
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        return subscription.outerValue; | 
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    }; | 
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    DelayWhenSubscriber.prototype.tryDelay = function (delayNotifier, value) { | 
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        var notifierSubscription = subscribeToResult_1.subscribeToResult(this, delayNotifier, value); | 
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        if (notifierSubscription && !notifierSubscription.closed) { | 
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            var destination = this.destination; | 
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            destination.add(notifierSubscription); | 
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            this.delayNotifierSubscriptions.push(notifierSubscription); | 
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        } | 
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    }; | 
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    DelayWhenSubscriber.prototype.tryComplete = function () { | 
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        if (this.completed && this.delayNotifierSubscriptions.length === 0) { | 
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            this.destination.complete(); | 
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        } | 
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    }; | 
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    return DelayWhenSubscriber; | 
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}(OuterSubscriber_1.OuterSubscriber)); | 
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var SubscriptionDelayObservable = (function (_super) { | 
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    __extends(SubscriptionDelayObservable, _super); | 
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    function SubscriptionDelayObservable(source, subscriptionDelay) { | 
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        var _this = _super.call(this) || this; | 
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        _this.source = source; | 
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        _this.subscriptionDelay = subscriptionDelay; | 
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        return _this; | 
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    } | 
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    SubscriptionDelayObservable.prototype._subscribe = function (subscriber) { | 
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        this.subscriptionDelay.subscribe(new SubscriptionDelaySubscriber(subscriber, this.source)); | 
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    }; | 
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    return SubscriptionDelayObservable; | 
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}(Observable_1.Observable)); | 
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var SubscriptionDelaySubscriber = (function (_super) { | 
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    __extends(SubscriptionDelaySubscriber, _super); | 
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    function SubscriptionDelaySubscriber(parent, source) { | 
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        var _this = _super.call(this) || this; | 
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        _this.parent = parent; | 
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        _this.source = source; | 
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        _this.sourceSubscribed = false; | 
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        return _this; | 
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    } | 
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    SubscriptionDelaySubscriber.prototype._next = function (unused) { | 
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        this.subscribeToSource(); | 
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    }; | 
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    SubscriptionDelaySubscriber.prototype._error = function (err) { | 
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        this.unsubscribe(); | 
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        this.parent.error(err); | 
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    }; | 
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    SubscriptionDelaySubscriber.prototype._complete = function () { | 
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        this.unsubscribe(); | 
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        this.subscribeToSource(); | 
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    }; | 
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    SubscriptionDelaySubscriber.prototype.subscribeToSource = function () { | 
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        if (!this.sourceSubscribed) { | 
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            this.sourceSubscribed = true; | 
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            this.unsubscribe(); | 
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            this.source.subscribe(this.parent); | 
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        } | 
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    }; | 
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    return SubscriptionDelaySubscriber; | 
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}(Subscriber_1.Subscriber)); | 
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//# sourceMappingURL=delayWhen.js.map
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