Refactor shutdown to use signals

objreg improvements:

- event-filter -> gone
- save-manager -> -1 usage
- crash-handler -> command-only
- signal-handler -> gone
- session-manager -> -1 usage

See #640

1 files changed, 8 insertions, 1 deletions

diff --git a/qutebrowser/misc/sessions.py b/qutebrowser/misc/sessions.py
index d061ed6e4..0e0c14197 100644
--- a/qutebrowser/misc/sessions.py
+++ b/qutebrowser/misc/sessions.py
@@ -25,7 +25,7 @@ import itertools
 import urllib
 import typing
 
-from PyQt5.QtCore import QUrl, QObject, QPoint, QTimer
+from PyQt5.QtCore import QUrl, QObject, QPoint, QTimer, pyqtSlot
 from PyQt5.QtWidgets import QApplication
 import yaml
 
@@ -44,6 +44,7 @@ class Sentinel:
 
 
 default = Sentinel()
+session_manager = None
 
 
 def init(parent=None):
@@ -58,10 +59,16 @@ def init(parent=None):
     except FileExistsError:
         pass
 
+    global session_manager
     session_manager = SessionManager(base_path, parent)
     objreg.register('session-manager', session_manager)
 
 
+@pyqtSlot()
+def shutdown():
+    session_manager.delete_autosave()
+
+
 class SessionError(Exception):
 
     """Exception raised when a session failed to load/save."""