| /** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */ |
| import * as tslib_1 from "tslib"; |
| import { OuterSubscriber } from '../OuterSubscriber'; |
| import { subscribeToResult } from '../util/subscribeToResult'; |
| export var defaultThrottleConfig = { |
| leading: true, |
| trailing: false |
| }; |
| export function throttle(durationSelector, config) { |
| if (config === void 0) { |
| config = defaultThrottleConfig; |
| } |
| return function (source) { return source.lift(new ThrottleOperator(durationSelector, config.leading, config.trailing)); }; |
| } |
| var ThrottleOperator = /*@__PURE__*/ (function () { |
| function ThrottleOperator(durationSelector, leading, trailing) { |
| this.durationSelector = durationSelector; |
| this.leading = leading; |
| this.trailing = trailing; |
| } |
| ThrottleOperator.prototype.call = function (subscriber, source) { |
| return source.subscribe(new ThrottleSubscriber(subscriber, this.durationSelector, this.leading, this.trailing)); |
| }; |
| return ThrottleOperator; |
| }()); |
| var ThrottleSubscriber = /*@__PURE__*/ (function (_super) { |
| tslib_1.__extends(ThrottleSubscriber, _super); |
| function ThrottleSubscriber(destination, durationSelector, _leading, _trailing) { |
| var _this = _super.call(this, destination) || this; |
| _this.destination = destination; |
| _this.durationSelector = durationSelector; |
| _this._leading = _leading; |
| _this._trailing = _trailing; |
| _this._hasValue = false; |
| return _this; |
| } |
| ThrottleSubscriber.prototype._next = function (value) { |
| this._hasValue = true; |
| this._sendValue = value; |
| if (!this._throttled) { |
| if (this._leading) { |
| this.send(); |
| } |
| else { |
| this.throttle(value); |
| } |
| } |
| }; |
| ThrottleSubscriber.prototype.send = function () { |
| var _a = this, _hasValue = _a._hasValue, _sendValue = _a._sendValue; |
| if (_hasValue) { |
| this.destination.next(_sendValue); |
| this.throttle(_sendValue); |
| } |
| this._hasValue = false; |
| this._sendValue = null; |
| }; |
| ThrottleSubscriber.prototype.throttle = function (value) { |
| var duration = this.tryDurationSelector(value); |
| if (!!duration) { |
| this.add(this._throttled = subscribeToResult(this, duration)); |
| } |
| }; |
| ThrottleSubscriber.prototype.tryDurationSelector = function (value) { |
| try { |
| return this.durationSelector(value); |
| } |
| catch (err) { |
| this.destination.error(err); |
| return null; |
| } |
| }; |
| ThrottleSubscriber.prototype.throttlingDone = function () { |
| var _a = this, _throttled = _a._throttled, _trailing = _a._trailing; |
| if (_throttled) { |
| _throttled.unsubscribe(); |
| } |
| this._throttled = null; |
| if (_trailing) { |
| this.send(); |
| } |
| }; |
| ThrottleSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
| this.throttlingDone(); |
| }; |
| ThrottleSubscriber.prototype.notifyComplete = function () { |
| this.throttlingDone(); |
| }; |
| return ThrottleSubscriber; |
| }(OuterSubscriber)); |
| //# sourceMappingURL=throttle.js.map |