BetterDiscordApp-v2/common/modules/bdipc.js

163 lines
4.3 KiB
JavaScript

/**
* BetterDiscord IPC Module
* Copyright (c) 2015-present Jiiks/JsSucks - https://github.com/Jiiks / https://github.com/JsSucks
* All rights reserved.
* https://betterdiscord.net
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import { ipcRenderer } from 'electron';
const callbacks = new WeakMap();
const ClientIPC = new class ClientIPC {
constructor() {
this.on('ping', () => 'pong', true);
}
/**
* Adds an IPC event listener.
* @param {String} channel The channel to listen on
* @param {Function} callback A function that will be called when a message is received
* @param {Boolean} reply Whether to automatically reply to the message with the callback's return value
* @return {Promise}
*/
on(channel, callback, reply) {
channel = channel.startsWith('bd-') ? channel : `bd-${channel}`;
const boundCallback = async (event, args) => {
const ipcevent = new BDIpcEvent(event, args);
try {
const r = callback(ipcevent, ipcevent.message);
if (reply) ipcevent.reply(await r);
} catch (err) {
console.error('Error in IPC callback:', err);
if (reply) ipcevent.reject(err);
}
};
callbacks.set(callback, boundCallback);
ipcRenderer.on(channel, boundCallback);
}
off(channel, callback) {
ipcRenderer.removeListener(channel, callbacks.get(callback));
}
/**
* Sends a message to the main process and returns a promise that is resolved when the main process replies.
* @param {String} channel The channel to send a message to
* @param {Any} message Data to send to the main process
* @param {Boolean} error Whether to mark the message as an error
* @return {Promise}
*/
async send(channel, message, error) {
channel = channel.startsWith('bd-') ? channel : `bd-${channel}`;
const eid = `bd-${Date.now().toString()}`;
ipcRenderer.send(channel, { eid, message, error });
return new Promise((resolve, reject) => {
ipcRenderer.once(eid, (event, arg) => {
if (arg.error) reject(arg.message);
else resolve(arg.message);
});
});
}
/**
* Sends a message to the Discord window and returns a promise that is resolved when it replies.
* @param {String} channel The channel to send a message to
* @param {Any} message Data to send to the renderer process
* @return {Promise}
*/
sendToDiscord(channel, message) {
return this.send('bd-sendToDiscord', {
channel, message
});
}
/**
* Sends a message to the CSS editor window and returns a promise that is resolved when it replies.
* @param {String} channel The channel to send a message to
* @param {Any} message Data to send to the CSS editor window
* @return {Promise}
*/
sendToCssEditor(channel, message) {
return this.send('bd-sendToCssEditor', {
channel, message
});
}
ping() {
return this.send('ping');
}
getConfig() {
return this.send('getConfig');
}
showOpenDialog(options) {
return this.send('native-open', options);
}
compileSass(options) {
return this.send('compileSass', options);
}
dba(command) {
return this.send('dba', command);
}
}
export default ClientIPC;
/**
* An IPC event.
*/
class BDIpcEvent {
constructor(event, args) {
this.args = args;
this.ipcEvent = event;
this.replied = false;
}
bindings() {
this.reply = this.reply.bind(this);
}
/**
* Sends a message back to the message's sender.
* @param {Any} message Data to send to this message's sender
*/
get send() { return this.reply }
reply(message, error) {
if (this.replied)
throw {message: 'This message has already been replied to.'};
this.replied = true;
return ClientIPC.send(this.eid, message, error);
}
reject(err) {
return this.reply(err, true);
}
get message() {
return this.args.message;
}
get error() {
return this.args.error;
}
get eid() {
return this.args.eid;
}
}