throttleTime.js
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"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
}
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Subscriber_1 = require("../Subscriber");
var async_1 = require("../scheduler/async");
var throttle_1 = require("./throttle");
function throttleTime(duration, scheduler, config) {
if (scheduler === void 0) { scheduler = async_1.async; }
if (config === void 0) { config = throttle_1.defaultThrottleConfig; }
return function (source) { return source.lift(new ThrottleTimeOperator(duration, scheduler, config.leading, config.trailing)); };
}
exports.throttleTime = throttleTime;
var ThrottleTimeOperator = (function () {
function ThrottleTimeOperator(duration, scheduler, leading, trailing) {
this.duration = duration;
this.scheduler = scheduler;
this.leading = leading;
this.trailing = trailing;
}
ThrottleTimeOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new ThrottleTimeSubscriber(subscriber, this.duration, this.scheduler, this.leading, this.trailing));
};
return ThrottleTimeOperator;
}());
var ThrottleTimeSubscriber = (function (_super) {
__extends(ThrottleTimeSubscriber, _super);
function ThrottleTimeSubscriber(destination, duration, scheduler, leading, trailing) {
var _this = _super.call(this, destination) || this;
_this.duration = duration;
_this.scheduler = scheduler;
_this.leading = leading;
_this.trailing = trailing;
_this._hasTrailingValue = false;
_this._trailingValue = null;
return _this;
}
ThrottleTimeSubscriber.prototype._next = function (value) {
if (this.throttled) {
if (this.trailing) {
this._trailingValue = value;
this._hasTrailingValue = true;
}
}
else {
this.add(this.throttled = this.scheduler.schedule(dispatchNext, this.duration, { subscriber: this }));
if (this.leading) {
this.destination.next(value);
}
else if (this.trailing) {
this._trailingValue = value;
this._hasTrailingValue = true;
}
}
};
ThrottleTimeSubscriber.prototype._complete = function () {
if (this._hasTrailingValue) {
this.destination.next(this._trailingValue);
this.destination.complete();
}
else {
this.destination.complete();
}
};
ThrottleTimeSubscriber.prototype.clearThrottle = function () {
var throttled = this.throttled;
if (throttled) {
if (this.trailing && this._hasTrailingValue) {
this.destination.next(this._trailingValue);
this._trailingValue = null;
this._hasTrailingValue = false;
}
throttled.unsubscribe();
this.remove(throttled);
this.throttled = null;
}
};
return ThrottleTimeSubscriber;
}(Subscriber_1.Subscriber));
function dispatchNext(arg) {
var subscriber = arg.subscriber;
subscriber.clearThrottle();
}
//# sourceMappingURL=throttleTime.js.map