om/node_modules/rxjs/_esm5/internal/observable/bindCallback.js

/** PURE_IMPORTS_START _Observable,_AsyncSubject,_operators_map,_util_canReportError,_util_isArray,_util_isScheduler PURE_IMPORTS_END */
import { Observable } from '../Observable';
import { AsyncSubject } from '../AsyncSubject';
import { map } from '../operators/map';
import { canReportError } from '../util/canReportError';
import { isArray } from '../util/isArray';
import { isScheduler } from '../util/isScheduler';
export function bindCallback(callbackFunc, resultSelector, scheduler) {
    if (resultSelector) {
        if (isScheduler(resultSelector)) {
            scheduler = resultSelector;
        }
        else {
            return function () {
                var args = [];
                for (var _i = 0; _i < arguments.length; _i++) {
                    args[_i] = arguments[_i];
                }
                return bindCallback(callbackFunc, scheduler).apply(void 0, args).pipe(map(function (args) { return isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));
            };
        }
    }
    return function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        var context = this;
        var subject;
        var params = {
            context: context,
            subject: subject,
            callbackFunc: callbackFunc,
            scheduler: scheduler,
        };
        return new Observable(function (subscriber) {
            if (!scheduler) {
                if (!subject) {
                    subject = new AsyncSubject();
                    var handler = function () {
                        var innerArgs = [];
                        for (var _i = 0; _i < arguments.length; _i++) {
                            innerArgs[_i] = arguments[_i];
                        }
                        subject.next(innerArgs.length <= 1 ? innerArgs[0] : innerArgs);
                        subject.complete();
                    };
                    try {
                        callbackFunc.apply(context, args.concat([handler]));
                    }
                    catch (err) {
                        if (canReportError(subject)) {
                            subject.error(err);
                        }
                        else {
                            console.warn(err);
                        }
                    }
                }
                return subject.subscribe(subscriber);
            }
            else {
                var state = {
                    args: args, subscriber: subscriber, params: params,
                };
                return scheduler.schedule(dispatch, 0, state);
            }
        });
    };
}
function dispatch(state) {
    var _this = this;
    var self = this;
    var args = state.args, subscriber = state.subscriber, params = state.params;
    var callbackFunc = params.callbackFunc, context = params.context, scheduler = params.scheduler;
    var subject = params.subject;
    if (!subject) {
        subject = params.subject = new AsyncSubject();
        var handler = function () {
            var innerArgs = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                innerArgs[_i] = arguments[_i];
            }
            var value = innerArgs.length <= 1 ? innerArgs[0] : innerArgs;
            _this.add(scheduler.schedule(dispatchNext, 0, { value: value, subject: subject }));
        };
        try {
            callbackFunc.apply(context, args.concat([handler]));
        }
        catch (err) {
            subject.error(err);
        }
    }
    this.add(subject.subscribe(subscriber));
}
function dispatchNext(state) {
    var value = state.value, subject = state.subject;
    subject.next(value);
    subject.complete();
}
function dispatchError(state) {
    var err = state.err, subject = state.subject;
    subject.error(err);
}
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