puppeteer/src/WebSocketTransport.js
Jack Franklin 7a2a41f208
chore: move code to src/ and emit with TypeScript (#5568)
This updates our `tsconfig.json` so it emits our JavaScript files as
well as type checking them. We compile into `./lib` which we then ship
in our npm package. The source code has moved from `./lib` into `./src`.

Because the `src/` directory is exclusively JS files, this change is a
no-op in terms of code functionality but is the first step towards being
able to replace `src/X.js` with `src/X.ts` in a way that allows us to
migrate incrementally.

The `lib` directory is gitignored, and the `src` directory is
npmignored. On `npm publish` we will now run `npm run tsc` in order to
generate the outputted code.
2020-04-02 16:25:19 +02:00

70 lines
1.8 KiB
JavaScript

/**
* Copyright 2018 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.
*/
const NodeWebSocket = require('ws');
/**
* @implements {!Puppeteer.ConnectionTransport}
*/
class WebSocketTransport {
/**
* @param {string} url
* @return {!Promise<!WebSocketTransport>}
*/
static create(url) {
return new Promise((resolve, reject) => {
const ws = new NodeWebSocket(url, [], {
perMessageDeflate: false,
maxPayload: 256 * 1024 * 1024, // 256Mb
});
ws.addEventListener('open', () => resolve(new WebSocketTransport(ws)));
ws.addEventListener('error', reject);
});
}
/**
* @param {!NodeWebSocket} ws
*/
constructor(ws) {
this._ws = ws;
this._ws.addEventListener('message', event => {
if (this.onmessage)
this.onmessage.call(null, event.data);
});
this._ws.addEventListener('close', event => {
if (this.onclose)
this.onclose.call(null);
});
// Silently ignore all errors - we don't know what to do with them.
this._ws.addEventListener('error', () => {});
this.onmessage = null;
this.onclose = null;
}
/**
* @param {string} message
*/
send(message) {
this._ws.send(message);
}
close() {
this._ws.close();
}
}
module.exports = WebSocketTransport;