Show/Hide the main window in KDE when clicking on the tray icon (#143)

src/vorta/application.py

@@ -82,6 +82,12 @@ class VortaApp(QApplication):
         self.main_window.show()
         self.main_window.raise_()
 
+    def toggle_main_window_visibility(self):
+        if self.main_window.isVisible():
+            self.main_window.hide()
+        else:
+            self.open_main_window_action()
+
     def backup_started_event_response(self):
         set_tray_icon(self.tray, active=True)
 

src/vorta/tray_menu.py

@@ -1,3 +1,4 @@
+import os
 from PyQt5.QtWidgets import QMenu, QSystemTrayIcon
 
 from .borg.borg_thread import BorgThread
@@ -16,9 +17,18 @@ class TrayMenu(QSystemTrayIcon):
         menu.aboutToShow.connect(self.on_user_click)
 
         self.setContextMenu(menu)
+
+        self.activated.connect(self.on_activation)
         self.setVisible(True)
         self.show()
 
+    def on_activation(self, reason):
+        if reason == QSystemTrayIcon.Trigger:
+            if os.environ.get('XDG_CURRENT_DESKTOP', '') == 'KDE':
+                self.app.toggle_main_window_visibility()
+            else:
+                self.on_user_click()
+
     def on_user_click(self):
         """Build system tray menu based on current state."""