You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
2.9 KiB
78 lines
2.9 KiB
2 years ago
|
"use strict";
|
||
|
|
var __extends = (this && this.__extends) || function (d, b) {
|
||
|
|
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
|
||
|
|
function __() { this.constructor = d; }
|
||
|
|
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
|
||
|
|
};
|
||
|
|
var OuterSubscriber_1 = require('../OuterSubscriber');
|
||
|
|
var subscribeToResult_1 = require('../util/subscribeToResult');
|
||
|
|
/**
|
||
|
|
* Buffers the source Observable values until `closingNotifier` emits.
|
||
|
|
*
|
||
|
|
* <span class="informal">Collects values from the past as an array, and emits
|
||
|
|
* that array only when another Observable emits.</span>
|
||
|
|
*
|
||
|
|
* <img src="./img/buffer.png" width="100%">
|
||
|
|
*
|
||
|
|
* Buffers the incoming Observable values until the given `closingNotifier`
|
||
|
|
* Observable emits a value, at which point it emits the buffer on the output
|
||
|
|
* Observable and starts a new buffer internally, awaiting the next time
|
||
|
|
* `closingNotifier` emits.
|
||
|
|
*
|
||
|
|
* @example <caption>On every click, emit array of most recent interval events</caption>
|
||
|
|
* var clicks = Rx.Observable.fromEvent(document, 'click');
|
||
|
|
* var interval = Rx.Observable.interval(1000);
|
||
|
|
* var buffered = interval.buffer(clicks);
|
||
|
|
* buffered.subscribe(x => console.log(x));
|
||
|
|
*
|
||
|
|
* @see {@link bufferCount}
|
||
|
|
* @see {@link bufferTime}
|
||
|
|
* @see {@link bufferToggle}
|
||
|
|
* @see {@link bufferWhen}
|
||
|
|
* @see {@link window}
|
||
|
|
*
|
||
|
|
* @param {Observable<any>} closingNotifier An Observable that signals the
|
||
|
|
* buffer to be emitted on the output Observable.
|
||
|
|
* @return {Observable<T[]>} An Observable of buffers, which are arrays of
|
||
|
|
* values.
|
||
|
|
* @method buffer
|
||
|
|
* @owner Observable
|
||
|
|
*/
|
||
|
|
function buffer(closingNotifier) {
|
||
|
|
return function bufferOperatorFunction(source) {
|
||
|
|
return source.lift(new BufferOperator(closingNotifier));
|
||
|
|
};
|
||
|
|
}
|
||
|
|
exports.buffer = buffer;
|
||
|
|
var BufferOperator = (function () {
|
||
|
|
function BufferOperator(closingNotifier) {
|
||
|
|
this.closingNotifier = closingNotifier;
|
||
|
|
}
|
||
|
|
BufferOperator.prototype.call = function (subscriber, source) {
|
||
|
|
return source.subscribe(new BufferSubscriber(subscriber, this.closingNotifier));
|
||
|
|
};
|
||
|
|
return BufferOperator;
|
||
|
|
}());
|
||
|
|
/**
|
||
|
|
* We need this JSDoc comment for affecting ESDoc.
|
||
|
|
* @ignore
|
||
|
|
* @extends {Ignored}
|
||
|
|
*/
|
||
|
|
var BufferSubscriber = (function (_super) {
|
||
|
|
__extends(BufferSubscriber, _super);
|
||
|
|
function BufferSubscriber(destination, closingNotifier) {
|
||
|
|
_super.call(this, destination);
|
||
|
|
this.buffer = [];
|
||
|
|
this.add(subscribeToResult_1.subscribeToResult(this, closingNotifier));
|
||
|
|
}
|
||
|
|
BufferSubscriber.prototype._next = function (value) {
|
||
|
|
this.buffer.push(value);
|
||
|
|
};
|
||
|
|
BufferSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
||
|
|
var buffer = this.buffer;
|
||
|
|
this.buffer = [];
|
||
|
|
this.destination.next(buffer);
|
||
|
|
};
|
||
|
|
return BufferSubscriber;
|
||
|
|
}(OuterSubscriber_1.OuterSubscriber));
|
||
|
|
//# sourceMappingURL=buffer.js.map
|