# HG changeset patch
# User Goffi <goffi@goffi.org>
# Date 1583097085 -3600
# Node ID edb240ff7936aeb00b181bd247c2e02c8e9a3818
# Parent  cebf657d78ef91c469ba693639b02e82ed045915
core (menu): avoid crash when removing SideMenu from parent if it has already been removed

diff -r cebf657d78ef -r edb240ff7936 cagou/core/menu.py
--- a/cagou/core/menu.py	Sun Mar 01 22:11:25 2020 +0100
+++ b/cagou/core/menu.py	Sun Mar 01 22:11:25 2020 +0100
@@ -128,12 +128,18 @@
         self._set_anim_kw(kw, self.size_hint_open, self.size_open)
         Animation(**kw).start(self)
 
+    def _removeFromParent(self, anim, menu):
+        # self.parent can already be None if the widget has been removed by a callback
+        # before the animation started.
+        if self.parent is not None:
+            self.parent.remove_widget(self)
+
     def hide(self):
         Window.unbind(on_keyboard=self.key_input)
         kw = {'d': 0.2}
         self._set_anim_kw(kw, self.size_hint_close, self.size_close)
         anim = Animation(**kw)
-        anim.bind(on_complete=lambda anim, menu: self.parent.remove_widget(self))
+        anim.bind(on_complete=self._removeFromParent)
         anim.start(self)
         if self.callback_on_close:
             self.do_callback()