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/** PURE_IMPORTS_START tslib,_Subscription,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
import * as tslib_1 from "tslib";
import { Subscription } from '../Subscription';
import { OuterSubscriber } from '../OuterSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
export function bufferWhen(closingSelector) {
return function (source) {
return source.lift(new BufferWhenOperator(closingSelector));
};
}
var BufferWhenOperator = /*@__PURE__*/ (function () {
function BufferWhenOperator(closingSelector) {
this.closingSelector = closingSelector;
}
BufferWhenOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new BufferWhenSubscriber(subscriber, this.closingSelector));
};
return BufferWhenOperator;
}());
var BufferWhenSubscriber = /*@__PURE__*/ (function (_super) {
tslib_1.__extends(BufferWhenSubscriber, _super);
function BufferWhenSubscriber(destination, closingSelector) {
var _this = _super.call(this, destination) || this;
_this.closingSelector = closingSelector;
_this.subscribing = false;
_this.openBuffer();
return _this;
}
BufferWhenSubscriber.prototype._next = function (value) {
this.buffer.push(value);
};
BufferWhenSubscriber.prototype._complete = function () {
var buffer = this.buffer;
if (buffer) {
this.destination.next(buffer);
}
_super.prototype._complete.call(this);
};
BufferWhenSubscriber.prototype._unsubscribe = function () {
this.buffer = null;
this.subscribing = false;
};
BufferWhenSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
this.openBuffer();
};
BufferWhenSubscriber.prototype.notifyComplete = function () {
if (this.subscribing) {
this.complete();
}
else {
this.openBuffer();
}
};
BufferWhenSubscriber.prototype.openBuffer = function () {
var closingSubscription = this.closingSubscription;
if (closingSubscription) {
this.remove(closingSubscription);
closingSubscription.unsubscribe();
}
var buffer = this.buffer;
if (this.buffer) {
this.destination.next(buffer);
}
this.buffer = [];
var closingNotifier;
try {
var closingSelector = this.closingSelector;
closingNotifier = closingSelector();
}
catch (err) {
return this.error(err);
}
closingSubscription = new Subscription();
this.closingSubscription = closingSubscription;
this.add(closingSubscription);
this.subscribing = true;
closingSubscription.add(subscribeToResult(this, closingNotifier));
this.subscribing = false;
};
return BufferWhenSubscriber;
}(OuterSubscriber));
//# sourceMappingURL=bufferWhen.js.map
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