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import { MessageBus, sessionBus } from 'dbus-next';
import { isLinux } from '../environment';
import TrayIcon from './Tray';
export default class DBus {
bus: MessageBus | null = null;
trayIcon: TrayIcon;
constructor(trayIcon: TrayIcon) {
this.trayIcon = trayIcon;
}
start() {
if (!isLinux || this.bus) {
return;
}
try {
this.bus = sessionBus();
} catch {
// Error connecting to the bus.
return;
}
// HACK Hook onto the MessageBus to track StatusNotifierWatchers
// @ts-expect-error Property '_addMatch' does not exist on type 'MessageBus'.
this.bus._addMatch(
"type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',path='/org/freedesktop/DBus',member='NameOwnerChanged'",
);
const mangled = JSON.stringify({
path: '/org/freedesktop/DBus',
interface: 'org.freedesktop.DBus',
member: 'NameOwnerChanged',
});
// @ts-expect-error Property '_signals' does not exist on type 'MessageBus'.
this.bus._signals.on(mangled, (msg: { body: [any, any, any] }) => {
const [name, oldOwner, newOwner] = msg.body;
if (
name === 'org.kde.StatusNotifierWatcher' &&
oldOwner !== newOwner &&
newOwner !== ''
) {
// Leave ample time for the StatusNotifierWatcher to be initialized
setTimeout(() => {
this.trayIcon.recreateIfVisible();
}, 400);
}
});
}
stop() {
if (!this.bus) {
return;
}
this.bus.disconnect();
this.bus = null;
}
}
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