108 lines
3.9 KiB
JavaScript
108 lines
3.9 KiB
JavaScript
/** PURE_IMPORTS_START ._Subject,._scheduler_queue,._Subscription,._operators_observeOn,._util_ObjectUnsubscribedError,._SubjectSubscription PURE_IMPORTS_END */
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b)
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if (b.hasOwnProperty(p))
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d[p] = b[p];
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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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import { Subject } from './Subject';
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import { queue } from './scheduler/queue';
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import { Subscription } from './Subscription';
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import { ObserveOnSubscriber } from './operators/observeOn';
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import { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';
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import { SubjectSubscription } from './SubjectSubscription';
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/**
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* @class ReplaySubject<T>
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*/
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export var ReplaySubject = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
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__extends(ReplaySubject, _super);
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function ReplaySubject(bufferSize, windowTime, scheduler) {
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if (bufferSize === void 0) {
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bufferSize = Number.POSITIVE_INFINITY;
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}
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if (windowTime === void 0) {
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windowTime = Number.POSITIVE_INFINITY;
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}
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_super.call(this);
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this.scheduler = scheduler;
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this._events = [];
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this._bufferSize = bufferSize < 1 ? 1 : bufferSize;
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this._windowTime = windowTime < 1 ? 1 : windowTime;
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}
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ReplaySubject.prototype.next = function (value) {
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var now = this._getNow();
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this._events.push(new ReplayEvent(now, value));
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this._trimBufferThenGetEvents();
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_super.prototype.next.call(this, value);
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};
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/** @deprecated internal use only */ ReplaySubject.prototype._subscribe = function (subscriber) {
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var _events = this._trimBufferThenGetEvents();
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var scheduler = this.scheduler;
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var subscription;
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if (this.closed) {
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throw new ObjectUnsubscribedError();
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}
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else if (this.hasError) {
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subscription = Subscription.EMPTY;
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}
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else if (this.isStopped) {
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subscription = Subscription.EMPTY;
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}
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else {
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this.observers.push(subscriber);
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subscription = new SubjectSubscription(this, subscriber);
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}
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if (scheduler) {
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subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));
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}
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var len = _events.length;
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for (var i = 0; i < len && !subscriber.closed; i++) {
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subscriber.next(_events[i].value);
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}
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if (this.hasError) {
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subscriber.error(this.thrownError);
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}
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else if (this.isStopped) {
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subscriber.complete();
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}
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return subscription;
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};
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ReplaySubject.prototype._getNow = function () {
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return (this.scheduler || queue).now();
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};
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ReplaySubject.prototype._trimBufferThenGetEvents = function () {
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var now = this._getNow();
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var _bufferSize = this._bufferSize;
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var _windowTime = this._windowTime;
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var _events = this._events;
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var eventsCount = _events.length;
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var spliceCount = 0;
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// Trim events that fall out of the time window.
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// Start at the front of the list. Break early once
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// we encounter an event that falls within the window.
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while (spliceCount < eventsCount) {
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if ((now - _events[spliceCount].time) < _windowTime) {
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break;
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}
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spliceCount++;
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}
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if (eventsCount > _bufferSize) {
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spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);
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}
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if (spliceCount > 0) {
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_events.splice(0, spliceCount);
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}
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return _events;
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};
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return ReplaySubject;
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}(Subject));
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var ReplayEvent = /*@__PURE__*/ (/*@__PURE__*/ function () {
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function ReplayEvent(time, value) {
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this.time = time;
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this.value = value;
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}
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return ReplayEvent;
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}());
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//# sourceMappingURL=ReplaySubject.js.map
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