Merge pull request #216 from MightyCreak/fix-version-option

fix: error when runnin with arg --version

src/diffuse/main.py

@@ -22,6 +22,7 @@
 import encodings
 
 from gettext import gettext as _
+from typing import Optional
 
 from diffuse import constants, utils
 from diffuse.resources import theResources
@@ -35,13 +36,14 @@
 class DiffuseApplication(Gtk.Application):
  """The main application class."""
 
- def __init__(self, sysconfigdir):
+ def __init__(self, sysconfigdir: str):
  super().__init__(
  application_id=constants.APP_ID,
  flags=Gio.ApplicationFlags.HANDLES_COMMAND_LINE | Gio.ApplicationFlags.NON_UNIQUE)
 
- self.window = None
  self.sysconfigdir = sysconfigdir
+ self.window: Optional[DiffuseWindow] = None
+ self.statepath: str = ""
 
  self.connect('shutdown', self.on_shutdown)
 
@@ -196,7 +198,8 @@ def __init__(self, sysconfigdir):
 
  def do_activate(self) -> None:
  """Called when the application is activated."""
- self.window.present()
+ if self.window is not None:
+ self.window.present()
 
  def do_command_line(self, command_line):
  """Called to treat the command line options."""
@@ -369,7 +372,8 @@ def do_command_line(self, command_line):
  return 0
 
  def on_shutdown(self, application: Gio.Application) -> None:
- self.window.save_state(self.statepath)
+ if self.window is not None and self.statepath != '':
+ self.window.save_state(self.statepath)
 
 
 def main(version: str, sysconfigdir: str) -> int: