Gecko [ unitednationsplay.com ]

Name	Size	Permission	Date
dom	[ DIR ]	drwxrwxr-x	2022-08-30 11:49
ArrayLikeObservable.ts	1.89 KB	-rw-rw-r--	2022-08-30 11:49
ArrayObservable.ts	4.29 KB	-rw-rw-r--	2022-08-30 11:49
BoundCallbackObservable.ts	14.32 KB	-rw-rw-r--	2022-08-30 11:49
BoundNodeCallbackObservable.ts	12.27 KB	-rw-rw-r--	2022-08-30 11:49
ConnectableObservable.ts	5.58 KB	-rw-rw-r--	2022-08-30 11:49
DeferObservable.ts	3.3 KB	-rw-rw-r--	2022-08-30 11:49
EmptyObservable.ts	2.51 KB	-rw-rw-r--	2022-08-30 11:49
ErrorObservable.ts	2.61 KB	-rw-rw-r--	2022-08-30 11:49
ForkJoinObservable.ts	10.66 KB	-rw-rw-r--	2022-08-30 11:49
FromEventObservable.ts	10.89 KB	-rw-rw-r--	2022-08-30 11:49
FromEventPatternObservable.ts	3.71 KB	-rw-rw-r--	2022-08-30 11:49
FromObservable.ts	4.34 KB	-rw-rw-r--	2022-08-30 11:49
GenerateObservable.ts	9.73 KB	-rw-rw-r--	2022-08-30 11:49
IfObservable.ts	1.84 KB	-rw-rw-r--	2022-08-30 11:49
IntervalObservable.ts	2.67 KB	-rw-rw-r--	2022-08-30 11:49
IteratorObservable.ts	3.69 KB	-rw-rw-r--	2022-08-30 11:49
NeverObservable.ts	1.6 KB	-rw-rw-r--	2022-08-30 11:49
PairsObservable.ts	2.63 KB	-rw-rw-r--	2022-08-30 11:49
PromiseObservable.ts	3.87 KB	-rw-rw-r--	2022-08-30 11:49
RangeObservable.ts	2.87 KB	-rw-rw-r--	2022-08-30 11:49
ScalarObservable.ts	1.32 KB	-rw-rw-r--	2022-08-30 11:49
SubscribeOnObservable.ts	1.51 KB	-rw-rw-r--	2022-08-30 11:49
TimerObservable.ts	3.8 KB	-rw-rw-r--	2022-08-30 11:49
UsingObservable.ts	1.88 KB	-rw-rw-r--	2022-08-30 11:49
bindCallback.ts	131 B	-rw-rw-r--	2022-08-30 11:49
bindNodeCallback.ts	147 B	-rw-rw-r--	2022-08-30 11:49
combineLatest.ts	9.79 KB	-rw-rw-r--	2022-08-30 11:49
concat.ts	6.04 KB	-rw-rw-r--	2022-08-30 11:49
defer.ts	100 B	-rw-rw-r--	2022-08-30 11:49
empty.ts	100 B	-rw-rw-r--	2022-08-30 11:49
forkJoin.ts	112 B	-rw-rw-r--	2022-08-30 11:49
from.ts	96 B	-rw-rw-r--	2022-08-30 11:49
fromEvent.ts	116 B	-rw-rw-r--	2022-08-30 11:49
fromEventPattern.ts	144 B	-rw-rw-r--	2022-08-30 11:49
fromPromise.ts	112 B	-rw-rw-r--	2022-08-30 11:49
generate.ts	111 B	-rw-rw-r--	2022-08-30 11:49
if.ts	89 B	-rw-rw-r--	2022-08-30 11:49
interval.ts	112 B	-rw-rw-r--	2022-08-30 11:49
merge.ts	6.14 KB	-rw-rw-r--	2022-08-30 11:49
never.ts	100 B	-rw-rw-r--	2022-08-30 11:49
of.ts	93 B	-rw-rw-r--	2022-08-30 11:49
onErrorResumeNext.ts	133 B	-rw-rw-r--	2022-08-30 11:49
pairs.ts	102 B	-rw-rw-r--	2022-08-30 11:49
race.ts	3.17 KB	-rw-rw-r--	2022-08-30 11:49
range.ts	100 B	-rw-rw-r--	2022-08-30 11:49
throw.ts	101 B	-rw-rw-r--	2022-08-30 11:49
timer.ts	100 B	-rw-rw-r--	2022-08-30 11:49
using.ts	100 B	-rw-rw-r--	2022-08-30 11:49
zip.ts	79 B	-rw-rw-r--	2022-08-30 11:49

Rename

import { isFunction } from '../util/isFunction';
import { Observable } from '../Observable';
import { Subscription } from '../Subscription';
import { Subscriber } from '../Subscriber';

/**
 * We need this JSDoc comment for affecting ESDoc.
 * @extends {Ignored}
 * @hide true
 */
export class FromEventPatternObservable<T> extends Observable<T> {

/**
   * Creates an Observable from an API based on addHandler/removeHandler
   * functions.
   *
   * <span class="informal">Converts any addHandler/removeHandler API to an
   * Observable.</span>
   *
   * <img src="./img/fromEventPattern.png" width="100%">
   *
   * Creates an Observable by using the `addHandler` and `removeHandler`
   * functions to add and remove the handlers, with an optional selector
   * function to project the event arguments to a result. The `addHandler` is
   * called when the output Observable is subscribed, and `removeHandler` is
   * called when the Subscription is unsubscribed.
   *
   * @example <caption>Emits clicks happening on the DOM document</caption>
   * function addClickHandler(handler) {
   *   document.addEventListener('click', handler);
   * }
   *
   * function removeClickHandler(handler) {
   *   document.removeEventListener('click', handler);
   * }
   *
   * var clicks = Rx.Observable.fromEventPattern(
   *   addClickHandler,
   *   removeClickHandler
   * );
   * clicks.subscribe(x => console.log(x));
   *
   * @see {@link from}
   * @see {@link fromEvent}
   *
   * @param {function(handler: Function): any} addHandler A function that takes
   * a `handler` function as argument and attaches it somehow to the actual
   * source of events.
   * @param {function(handler: Function, signal?: any): void} [removeHandler] An optional function that
   * takes a `handler` function as argument and removes it in case it was
   * previously attached using `addHandler`. if addHandler returns signal to teardown when remove,
   * removeHandler function will forward it.
   * @param {function(...args: any): T} [selector] An optional function to
   * post-process results. It takes the arguments from the event handler and
   * should return a single value.
   * @return {Observable<T>}
   * @static true
   * @name fromEventPattern
   * @owner Observable
   */
  static create<T>(addHandler: (handler: Function) => any,
                   removeHandler?: (handler: Function, signal?: any) => void,
                   selector?: (...args: Array<any>) => T) {
    return new FromEventPatternObservable(addHandler, removeHandler, selector);
  }

constructor(private addHandler: (handler: Function) => any,
              private removeHandler?: (handler: Function, signal?: any) => void,
              private selector?: (...args: Array<any>) => T) {
    super();
  }

/** @deprecated internal use only */ _subscribe(subscriber: Subscriber<T>) {
    const removeHandler = this.removeHandler;

const handler = !!this.selector ? (...args: Array<any>) => {
      this._callSelector(subscriber, args);
    } : function(e: any) { subscriber.next(e); };

const retValue = this._callAddHandler(handler, subscriber);

if (!isFunction(removeHandler)) {
      return;
    }

subscriber.add(new Subscription(() => {
      //TODO: determine whether or not to forward to error handler
      removeHandler(handler, retValue) ;
    }));
  }

private _callSelector(subscriber: Subscriber<T>, args: Array<any>): void {
    try {
      const result: T = this.selector(...args);
      subscriber.next(result);
    }
    catch (e) {
      subscriber.error(e);
    }
  }

private _callAddHandler(handler: (e: any) => void, errorSubscriber: Subscriber<T>): any | null {
    try {
      return this.addHandler(handler) || null;
    }
    catch (e) {
      errorSubscriber.error(e);
    }
  }
}