76 lines
2.8 KiB
JavaScript
76 lines
2.8 KiB
JavaScript
/** 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 function debounce(durationSelector) {
|
|
return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
|
|
}
|
|
var DebounceOperator = /*@__PURE__*/ (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 = /*@__PURE__*/ (function (_super) {
|
|
tslib_1.__extends(DebounceSubscriber, _super);
|
|
function DebounceSubscriber(destination, durationSelector) {
|
|
var _this = _super.call(this, destination) || this;
|
|
_this.durationSelector = durationSelector;
|
|
_this.hasValue = false;
|
|
_this.durationSubscription = null;
|
|
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 = subscribeToResult(this, duration);
|
|
if (subscription && !subscription.closed) {
|
|
this.add(this.durationSubscription = subscription);
|
|
}
|
|
};
|
|
DebounceSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
|
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 = null;
|
|
subscription.unsubscribe();
|
|
this.remove(subscription);
|
|
}
|
|
this.value = null;
|
|
this.hasValue = false;
|
|
_super.prototype._next.call(this, value);
|
|
}
|
|
};
|
|
return DebounceSubscriber;
|
|
}(OuterSubscriber));
|
|
//# sourceMappingURL=debounce.js.map
|