azon_seeker/webext-bridge/src/window.ts

import { createEndpointRuntime } from './internal/endpoint-runtime';
import { usePostMessaging } from './internal/post-message';
import { createStreamWirings } from './internal/stream';

const win = usePostMessaging('window');

const endpointRuntime = createEndpointRuntime('window', (message) => win.postMessage(message));

win.onMessage((msg) => {
  if ('type' in msg && 'transactionID' in msg) endpointRuntime.endTransaction(msg.transactionID);
  else endpointRuntime.handleMessage(msg);
});

export function setNamespace(nsps: string): void {
  win.setNamespace(nsps);
  win.enable();
}

export const { sendMessage, onMessage } = endpointRuntime;
export const { openStream, onOpenStreamChannel } = createStreamWirings(endpointRuntime);