background/message_server.js


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/**
 * Myext message server
 *
 * Copyright (C) 2021 Wojtek Kosior
 * Redistribution terms are gathered in the `copyright' file.
 */

"use strict";

(() => {
    const browser = window.browser;

    var listeners = {};

    /* magic should be one of the constants from /common/connection_types.js */

    function listen_for_connection(magic, cb)
    {
	listeners[magic] = cb;
    }

    function raw_listen(port) {
	if (listeners[port.name] === undefined)
	    return;

	listeners[port.name](port);
    }

    browser.runtime.onConnect.addListener(raw_listen);

    window.listen_for_connection = listen_for_connection;
})();