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/**
* This file is part of Haketilo.
*
* Function: Broadcast messages to different execution contexts of the extension
*
* Copyright (C) 2021 Wojtek Kosior
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* As additional permission under GNU GPL version 3 section 7, you
* may distribute forms of that code without the copy of the GNU
* GPL normally required by section 4, provided you include this
* license notice and, in case of non-source distribution, a URL
* through which recipients can access the Corresponding Source.
* If you modify file(s) with this exception, you may extend this
* exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* As a special exception to the GPL, any HTML file which merely
* makes function calls to this code, and for that purpose
* includes it by reference shall be deemed a separate work for
* copyright law purposes. If you modify this code, you may extend
* this exception to your version of the code, but you are not
* obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* I, Wojtek Kosior, thereby promise not to sue for violation of this file's
* license. Although I request that you do not make use this code in a
* proprietary program, I am not going to enforce this in court.
*/
/*
* IMPORTS_START
* IMPORT CONNECTION_TYPE
* IMPORTS_END
*/
function sender_connection()
{
return {
port: browser.runtime.connect({name: CONNECTION_TYPE.BROADCAST_SEND})
};
}
function out(sender_conn, channel_name, value)
{
sender_conn.port.postMessage(["broadcast", channel_name, value]);
}
function prepare(sender_conn, channel_name, value, timeout=5000)
{
sender_conn.port.postMessage(["prepare", channel_name, value, timeout]);
}
function discard(sender_conn)
{
sender_conn.port.postMessage(["discard"]);
}
function flush(sender_conn)
{
sender_conn.port.postMessage(["flush"]);
}
function listener_connection(cb)
{
const conn = {
port: browser.runtime.connect({name: CONNECTION_TYPE.BROADCAST_LISTEN})
};
conn.port.onMessage.addListener(cb);
return conn;
}
function subscribe(listener_conn, channel_name)
{
listener_conn.port.postMessage(["subscribe", channel_name]);
}
function unsubscribe(listener_conn, channel_name)
{
listener_conn.port.postMessage(["unsubscribe", channel_name]);
}
function close(conn)
{
conn.port.disconnect();
}
const broadcast = {
sender_connection, out, prepare, discard, flush,
listener_connection, subscribe, unsubscribe,
close
};
/*
* EXPORTS_START
* EXPORT broadcast
* EXPORTS_END
*/
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