ros/playwright-mcp
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This commit is contained in:
Simon Knott
2025-08-13 11:26:01 +02:00
parent 1ff80f8761
commit 5a0cfb9e65
2 changed files with 30 additions and 18 deletions
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2
src/vscode/host.ts
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@@ -28,7 +28,7 @@ export class VSCodeMCPFactory implements MCPFactory {
if (typeof options.connectionString !== 'string')
throw new Error('Missing options.connectionString');
if (typeof options.lib !== 'string')
throw new Error('Missing options.library');
throw new Error('Missing options.lib');
return new StdioClientTransport({
command: process.execPath,

40
src/vscode/main.ts
View File

@@ -21,26 +21,28 @@ import * as mcpServer from '../mcp/server.js';
import { BrowserServerBackend } from '../browserServerBackend.js';
import { BrowserContextFactory, ClientInfo } from '../browserContextFactory.js';
const config: FullConfig = JSON.parse(process.argv[2]);
const connectionString = new URL(process.argv[3]);
const lib = process.argv[4];
const playwright = await import(lib).then(mod => mod.default ?? mod) as typeof import('playwright');
class VSCodeBrowserContextFactory implements BrowserContextFactory {
name = 'vscode';
description = 'Connect to a browser running in the Playwright VS Code extension';
constructor(private _config: FullConfig, private _playwright: typeof import('playwright'), private _connectionString: string) {}
async createContext(clientInfo: ClientInfo, abortSignal: AbortSignal): Promise<{ browserContext: BrowserContext; close: () => Promise<void>; }> {
connectionString.searchParams.set('launch-options', JSON.stringify({
...config.browser.launchOptions,
...config.browser.contextOptions,
userDataDir: config.browser.userDataDir,
}));
let launchOptions: any = this._config.browser.launchOptions;
if (this._config.browser.userDataDir) {
launchOptions = {
...launchOptions,
...this._config.browser.contextOptions,
userDataDir: this._config.browser.userDataDir,
};
}
const connectionString = new URL(this._connectionString);
connectionString.searchParams.set('launch-options', JSON.stringify(launchOptions));
const browser = await playwright.chromium.connect(connectionString.toString());
const browserType = this._playwright.chromium; // it could also be firefox or webkit, we just need some browser type to call `connect` on
const browser = await browserType.connect(connectionString.toString());
const context = browser.contexts()[0] ?? await browser.newContext(config.browser.contextOptions);
const context = browser.contexts()[0] ?? await browser.newContext(this._config.browser.contextOptions);
return {
browserContext: context,
@@ -51,8 +53,18 @@ class VSCodeBrowserContextFactory implements BrowserContextFactory {
}
}
async function main(config: FullConfig, connectionString: string, lib: string) {
const playwright = await import(lib).then(mod => mod.default ?? mod);
const factory = new VSCodeBrowserContextFactory(config, playwright, connectionString);
await mcpServer.connect(
() => new BrowserServerBackend(config, new VSCodeBrowserContextFactory()),
() => new BrowserServerBackend(config, factory),
new StdioServerTransport(),
false
);
}
await main(
JSON.parse(process.argv[2]),
process.argv[3],
process.argv[4]
);