Fix exception when changing install path in preferences

CHANGELOG.md

@@ -1,5 +1,6 @@
 **1.2.6**
-- Fix error detection & reporting on wineprefix creation failure
+- Fix changing the install path causing an exception
+- Fix error detection & reporting on wineprefix creation failure (thanks to LeXofLeviafan)
 
 **1.2.5**
 - Fix filtering for installed games

minigalaxy/ui/preferences.py

@@ -27,10 +27,11 @@ class Preferences(Gtk.Dialog):
     button_cancel = Gtk.Template.Child()
     button_save = Gtk.Template.Child()
 
-    def __init__(self, parent, config: Config):
+    def __init__(self, parent, config: Config, download_manager: DownloadManager):
         Gtk.Dialog.__init__(self, title=_("Preferences"), parent=parent, modal=True)
         self.parent = parent
         self.config = config
+        self.download_manager = download_manager
 
         self.__set_locale_list()
         self.__set_language_list()
@@ -199,7 +200,7 @@ def save_pressed(self, button):
         # Only change the install_dir is it was actually changed
         if self.button_file_chooser.get_filename() != self.config.install_dir:
             if self.__save_install_dir_choice():
-                DownloadManager.cancel_all_downloads()
+                self.download_manager.cancel_all_downloads()
                 self.parent.reset_library()
             else:
                 self.parent.show_error(_("{} isn't a usable path").format(self.button_file_chooser.get_filename()))

minigalaxy/ui/window.py

@@ -42,6 +42,7 @@ def __init__(self, config: Config, api: 'Api', download_manager: DownloadManager
 
         self.api = api
         self.config = config
+        self.download_manager = download_manager
         self.search_string = ""
         self.offline = False
 
@@ -95,7 +96,7 @@ def filter_library(self, switch, _=""):
 
     @Gtk.Template.Callback("on_menu_preferences_clicked")
     def show_preferences(self, button):
-        preferences_window = Preferences(self, self.config)
+        preferences_window = Preferences(parent=self, config=self.config, download_manager=self.download_manager)
         preferences_window.run()
         preferences_window.destroy()