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import { __assign, __extends } from "tslib";
import { Subject, AnonymousSubject } from '../../Subject';
import { Subscriber } from '../../Subscriber';
import { Observable } from '../../Observable';
import { Subscription } from '../../Subscription';
import { ReplaySubject } from '../../ReplaySubject';
var DEFAULT_WEBSOCKET_CONFIG = {
url: '',
deserializer: function (e) { return JSON.parse(e.data); },
serializer: function (value) { return JSON.stringify(value); },
};
var WEBSOCKETSUBJECT_INVALID_ERROR_OBJECT = 'WebSocketSubject.error must be called with an object with an error code, and an optional reason: { code: number, reason: string }';
var WebSocketSubject = (function (_super) {
__extends(WebSocketSubject, _super);
function WebSocketSubject(urlConfigOrSource, destination) {
var _this = _super.call(this) || this;
_this._socket = null;
if (urlConfigOrSource instanceof Observable) {
_this.destination = destination;
_this.source = urlConfigOrSource;
}
else {
var config = (_this._config = __assign({}, DEFAULT_WEBSOCKET_CONFIG));
_this._output = new Subject();
if (typeof urlConfigOrSource === 'string') {
config.url = urlConfigOrSource;
}
else {
for (var key in urlConfigOrSource) {
if (urlConfigOrSource.hasOwnProperty(key)) {
config[key] = urlConfigOrSource[key];
}
}
}
if (!config.WebSocketCtor && WebSocket) {
config.WebSocketCtor = WebSocket;
}
else if (!config.WebSocketCtor) {
throw new Error('no WebSocket constructor can be found');
}
_this.destination = new ReplaySubject();
}
return _this;
}
WebSocketSubject.prototype.lift = function (operator) {
var sock = new WebSocketSubject(this._config, this.destination);
sock.operator = operator;
sock.source = this;
return sock;
};
WebSocketSubject.prototype._resetState = function () {
this._socket = null;
if (!this.source) {
this.destination = new ReplaySubject();
}
this._output = new Subject();
};
WebSocketSubject.prototype.multiplex = function (subMsg, unsubMsg, messageFilter) {
var self = this;
return new Observable(function (observer) {
try {
self.next(subMsg());
}
catch (err) {
observer.error(err);
}
var subscription = self.subscribe({
next: function (x) {
try {
if (messageFilter(x)) {
observer.next(x);
}
}
catch (err) {
observer.error(err);
}
},
error: function (err) { return observer.error(err); },
complete: function () { return observer.complete(); },
});
return function () {
try {
self.next(unsubMsg());
}
catch (err) {
observer.error(err);
}
subscription.unsubscribe();
};
});
};
WebSocketSubject.prototype._connectSocket = function () {
var _this = this;
var _a = this._config, WebSocketCtor = _a.WebSocketCtor, protocol = _a.protocol, url = _a.url, binaryType = _a.binaryType;
var observer = this._output;
var socket = null;
try {
socket = protocol ? new WebSocketCtor(url, protocol) : new WebSocketCtor(url);
this._socket = socket;
if (binaryType) {
this._socket.binaryType = binaryType;
}
}
catch (e) {
observer.error(e);
return;
}
var subscription = new Subscription(function () {
_this._socket = null;
if (socket && socket.readyState === 1) {
socket.close();
}
});
socket.onopen = function (evt) {
var _socket = _this._socket;
if (!_socket) {
socket.close();
_this._resetState();
return;
}
var openObserver = _this._config.openObserver;
if (openObserver) {
openObserver.next(evt);
}
var queue = _this.destination;
_this.destination = Subscriber.create(function (x) {
if (socket.readyState === 1) {
try {
var serializer = _this._config.serializer;
socket.send(serializer(x));
}
catch (e) {
_this.destination.error(e);
}
}
}, function (err) {
var closingObserver = _this._config.closingObserver;
if (closingObserver) {
closingObserver.next(undefined);
}
if (err && err.code) {
socket.close(err.code, err.reason);
}
else {
observer.error(new TypeError(WEBSOCKETSUBJECT_INVALID_ERROR_OBJECT));
}
_this._resetState();
}, function () {
var closingObserver = _this._config.closingObserver;
if (closingObserver) {
closingObserver.next(undefined);
}
socket.close();
_this._resetState();
});
if (queue && queue instanceof ReplaySubject) {
subscription.add(queue.subscribe(_this.destination));
}
};
socket.onerror = function (e) {
_this._resetState();
observer.error(e);
};
socket.onclose = function (e) {
if (socket === _this._socket) {
_this._resetState();
}
var closeObserver = _this._config.closeObserver;
if (closeObserver) {
closeObserver.next(e);
}
if (e.wasClean) {
observer.complete();
}
else {
observer.error(e);
}
};
socket.onmessage = function (e) {
try {
var deserializer = _this._config.deserializer;
observer.next(deserializer(e));
}
catch (err) {
observer.error(err);
}
};
};
WebSocketSubject.prototype._subscribe = function (subscriber) {
var _this = this;
var source = this.source;
if (source) {
return source.subscribe(subscriber);
}
if (!this._socket) {
this._connectSocket();
}
this._output.subscribe(subscriber);
subscriber.add(function () {
var _socket = _this._socket;
if (_this._output.observers.length === 0) {
if (_socket && (_socket.readyState === 1 || _socket.readyState === 0)) {
_socket.close();
}
_this._resetState();
}
});
return subscriber;
};
WebSocketSubject.prototype.unsubscribe = function () {
var _socket = this._socket;
if (_socket && (_socket.readyState === 1 || _socket.readyState === 0)) {
_socket.close();
}
this._resetState();
_super.prototype.unsubscribe.call(this);
};
return WebSocketSubject;
}(AnonymousSubject));
export { WebSocketSubject };
//# sourceMappingURL=WebSocketSubject.js.map |