hugoWebsite/node_modules/rxjs/dist/esm5/internal/observable/connectable.js

27 lines
1012 B
JavaScript

import { Subject } from '../Subject';
import { Observable } from '../Observable';
import { defer } from './defer';
var DEFAULT_CONFIG = {
connector: function () { return new Subject(); },
resetOnDisconnect: true,
};
export function connectable(source, config) {
if (config === void 0) { config = DEFAULT_CONFIG; }
var connection = null;
var connector = config.connector, _a = config.resetOnDisconnect, resetOnDisconnect = _a === void 0 ? true : _a;
var subject = connector();
var result = new Observable(function (subscriber) {
return subject.subscribe(subscriber);
});
result.connect = function () {
if (!connection || connection.closed) {
connection = defer(function () { return source; }).subscribe(subject);
if (resetOnDisconnect) {
connection.add(function () { return (subject = connector()); });
}
}
return connection;
};
return result;
}
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