@gjsify/message-channel

@gjsify/message-channel

W3C MessageChannel and MessagePort for GJS — EventTarget-based and transport-pluggable. Stock GJS exposes neither; this package provides the full postMessage / start / close / onmessage surface with async (microtask) dispatch. The pluggable transport hook backs the @gjsify/iframe WebKit bridge and future cross-process workers.

Part of the gjsify project — Node.js and Web APIs for GJS (GNOME JavaScript).

Installation

gjsify install @gjsify/message-channel

# npm or yarn also work (e.g. adding it to an existing project):
npm install @gjsify/message-channel
yarn add @gjsify/message-channel

Usage

import { MessageChannel, MessagePort } from '@gjsify/message-channel';

const { port1, port2 } = new MessageChannel();

port2.onmessage = (event) => {
    console.log('received:', event.data);
};

port1.postMessage({ hello: 'world' });
// → received: { hello: 'world' }

// Explicit start() is only needed when deferring listener attachment
port2.start();
port2.close();

License

MIT