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/**
* Copyright 2020 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import {ConnectionTransport} from './ConnectionTransport.js';
/**
* @internal
*/
export class BrowserWebSocketTransport implements ConnectionTransport {
static create(url: string): Promise<BrowserWebSocketTransport> {
return new Promise((resolve, reject) => {
const ws = new WebSocket(url);
ws.addEventListener('open', () => {
return resolve(new BrowserWebSocketTransport(ws));
});
ws.addEventListener('error', reject);
});
}
#ws: WebSocket;
onmessage?: (message: string) => void;
onclose?: () => void;
constructor(ws: WebSocket) {
this.#ws = ws;
this.#ws.addEventListener('message', event => {
if (this.onmessage) {
this.onmessage.call(null, event.data);
}
});
this.#ws.addEventListener('close', () => {
if (this.onclose) {
this.onclose.call(null);
}
});
// Silently ignore all errors - we don't know what to do with them.
this.#ws.addEventListener('error', () => {});
}
send(message: string): void {
this.#ws.send(message);
}
close(): void {
this.#ws.close();
}
}
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