From bfe8847d72cd0893230f2e654242658214943e61 Mon Sep 17 00:00:00 2001
From: Markus Hatvan <markus_hatvan@aon.at>
Date: Sat, 2 Oct 2021 09:24:32 +0200
Subject: chore: convert various files from JS to TS (#2010)

---
 src/lib/DBus.ts | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/lib/DBus.ts

(limited to 'src/lib/DBus.ts')

diff --git a/src/lib/DBus.ts b/src/lib/DBus.ts
new file mode 100644
index 000000000..b1febc2d1
--- /dev/null
+++ b/src/lib/DBus.ts
@@ -0,0 +1,55 @@
+import { MessageBus, sessionBus } from 'dbus-next';
+import { isLinux } from '../environment';
+
+export default class DBus {
+  bus: MessageBus | null = null;
+
+  trayIcon: any;
+
+  constructor(trayIcon: any) {
+    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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