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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 (...args) => bindCallback(callbackFunc, scheduler)(...args).pipe(map((args) => isArray(args) ? resultSelector(...args) : resultSelector(args)));
}
}
return function (...args) {
const context = this;
let subject;
const params = {
context,
subject,
callbackFunc,
scheduler,
};
return new Observable(subscriber => {
if (!scheduler) {
if (!subject) {
subject = new AsyncSubject();
const handler = (...innerArgs) => {
subject.next(innerArgs.length <= 1 ? innerArgs[0] : innerArgs);
subject.complete();
};
try {
callbackFunc.apply(context, [...args, handler]);
}
catch (err) {
if (canReportError(subject)) {
subject.error(err);
}
else {
console.warn(err);
}
}
}
return subject.subscribe(subscriber);
}
else {
const state = {
args, subscriber, params,
};
return scheduler.schedule(dispatch, 0, state);
}
});
};
}
function dispatch(state) {
const self = this;
const { args, subscriber, params } = state;
const { callbackFunc, context, scheduler } = params;
let { subject } = params;
if (!subject) {
subject = params.subject = new AsyncSubject();
const handler = (...innerArgs) => {
const value = innerArgs.length <= 1 ? innerArgs[0] : innerArgs;
this.add(scheduler.schedule(dispatchNext, 0, { value, subject }));
};
try {
callbackFunc.apply(context, [...args, handler]);
}
catch (err) {
subject.error(err);
}
}
this.add(subject.subscribe(subscriber));
}
function dispatchNext(state) {
const { value, subject } = state;
subject.next(value);
subject.complete();
}
function dispatchError(state) {
const { err, subject } = state;
subject.error(err);
}
//# sourceMappingURL=bindCallback.js.map
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