@reactivex/rxjs/dist/amd/observable/FromObservable.js

Reactive Extensions for modern JavaScript

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 __());
};
define(["require", "exports", '../util/isArray', '../util/isFunction', '../util/isPromise', '../util/isScheduler', './PromiseObservable', './IteratorObservable', './ArrayObservable', './ArrayLikeObservable', '../symbol/observable', '../symbol/iterator', '../Observable', '../operator/observeOn'], function (require, exports, isArray_1, isFunction_1, isPromise_1, isScheduler_1, PromiseObservable_1, IteratorObservable_1, ArrayObservable_1, ArrayLikeObservable_1, observable_1, iterator_1, Observable_1, observeOn_1) {
    "use strict";
    var isArrayLike = (function (x) { return x && typeof x.length === 'number'; });
    /**
     * We need this JSDoc comment for affecting ESDoc.
     * @extends {Ignored}
     * @hide true
     */
    var FromObservable = (function (_super) {
        __extends(FromObservable, _super);
        function FromObservable(ish, scheduler) {
            _super.call(this, null);
            this.ish = ish;
            this.scheduler = scheduler;
        }
        FromObservable.create = function (ish, mapFnOrScheduler, thisArg, lastScheduler) {
            var scheduler = null;
            var mapFn = null;
            if (isFunction_1.isFunction(mapFnOrScheduler)) {
                scheduler = lastScheduler || null;
                mapFn = mapFnOrScheduler;
            }
            else if (isScheduler_1.isScheduler(scheduler)) {
                scheduler = mapFnOrScheduler;
            }
            if (ish != null) {
                if (typeof ish[observable_1.$$observable] === 'function') {
                    if (ish instanceof Observable_1.Observable && !scheduler) {
                        return ish;
                    }
                    return new FromObservable(ish, scheduler);
                }
                else if (isArray_1.isArray(ish)) {
                    return new ArrayObservable_1.ArrayObservable(ish, scheduler);
                }
                else if (isPromise_1.isPromise(ish)) {
                    return new PromiseObservable_1.PromiseObservable(ish, scheduler);
                }
                else if (typeof ish[iterator_1.$$iterator] === 'function' || typeof ish === 'string') {
                    return new IteratorObservable_1.IteratorObservable(ish, null, null, scheduler);
                }
                else if (isArrayLike(ish)) {
                    return new ArrayLikeObservable_1.ArrayLikeObservable(ish, mapFn, thisArg, scheduler);
                }
            }
            throw new TypeError((ish !== null && typeof ish || ish) + ' is not observable');
        };
        FromObservable.prototype._subscribe = function (subscriber) {
            var ish = this.ish;
            var scheduler = this.scheduler;
            if (scheduler == null) {
                return ish[observable_1.$$observable]().subscribe(subscriber);
            }
            else {
                return ish[observable_1.$$observable]().subscribe(new observeOn_1.ObserveOnSubscriber(subscriber, scheduler, 0));
            }
        };
        return FromObservable;
    }(Observable_1.Observable));
    exports.FromObservable = FromObservable;
});
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