debounce.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 innerSubscribe_1 = require("../innerSubscribe");
function debounce(durationSelector) {
return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
}
exports.debounce = debounce;
var DebounceOperator = (function () {
function DebounceOperator(durationSelector) {
this.durationSelector = durationSelector;
}
DebounceOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
};
return DebounceOperator;
}());
var DebounceSubscriber = (function (_super) {
__extends(DebounceSubscriber, _super);
function DebounceSubscriber(destination, durationSelector) {
var _this = _super.call(this, destination) || this;
_this.durationSelector = durationSelector;
_this.hasValue = false;
return _this;
}
DebounceSubscriber.prototype._next = function (value) {
try {
var result = this.durationSelector.call(this, value);
if (result) {
this._tryNext(value, result);
}
}
catch (err) {
this.destination.error(err);
}
};
DebounceSubscriber.prototype._complete = function () {
this.emitValue();
this.destination.complete();
};
DebounceSubscriber.prototype._tryNext = function (value, duration) {
var subscription = this.durationSubscription;
this.value = value;
this.hasValue = true;
if (subscription) {
subscription.unsubscribe();
this.remove(subscription);
}
subscription = innerSubscribe_1.innerSubscribe(duration, new innerSubscribe_1.SimpleInnerSubscriber(this));
if (subscription && !subscription.closed) {
this.add(this.durationSubscription = subscription);
}
};
DebounceSubscriber.prototype.notifyNext = function () {
this.emitValue();
};
DebounceSubscriber.prototype.notifyComplete = function () {
this.emitValue();
};
DebounceSubscriber.prototype.emitValue = function () {
if (this.hasValue) {
var value = this.value;
var subscription = this.durationSubscription;
if (subscription) {
this.durationSubscription = undefined;
subscription.unsubscribe();
this.remove(subscription);
}
this.value = undefined;
this.hasValue = false;
_super.prototype._next.call(this, value);
}
};
return DebounceSubscriber;
}(innerSubscribe_1.SimpleOuterSubscriber));
//# sourceMappingURL=debounce.js.map