[util/popup] replace mainloop with custom loop

add a custom event loop for popups that closes the menu on mouse button
release events and - most importantly - propagates this event back to
any parent menu.

fixes #633

bumblebee_status/modules/core/vault.py

@@ -48,7 +48,7 @@ def build_menu(parent, current_directory, callback):
                 )
 
             else:
-                submenu = util.popup.menu(parent, leave=True)
+                submenu = util.popup.menu(parent, leave=False)
                 build_menu(
                     submenu, os.path.join(current_directory, entry.name), callback
                 )
@@ -88,6 +88,7 @@ class Module(core.module.Module):
             "pass show -c {}".format(secret_name),
             wait=False,
             env=env,
+            ignore_errors=True,
         )
         self.__timer = threading.Timer(self.__duration, self.__reset)
         self.__timer.start()

bumblebee_status/util/popup.py

@@ -15,6 +15,8 @@ class menu(object):
     """
 
     def __init__(self, parent=None, leave=True):
+        self.running = True
+        self.parent = None
         if not parent:
             self._root = tk.Tk()
             self._root.withdraw()
@@ -25,9 +27,12 @@ class menu(object):
             self._root.withdraw()
             self._menu = tk.Menu(self._root, tearoff=0)
             self._menu.bind("<FocusOut>", self.__on_focus_out)
+            self.parent = parent
         if leave:
             self._menu.bind("<Leave>", self.__on_focus_out)
 
+        self._menu.bind("<ButtonRelease-1>", self.release)
+
     """Returns the root node of this menu
 
     :return: root node
@@ -51,6 +56,11 @@ class menu(object):
         self._root.destroy()
         callback()
 
+    def release(self, event=None):
+        self.running=False
+        if self.parent:
+            self.parent.release(event)
+
     """Adds a cascading submenu to the current menu
 
     :param menuitem: label to display for the submenu
@@ -88,7 +98,17 @@ class menu(object):
             self._menu.tk_popup(event["x"] + offset_x, event["y"] + offset_y)
         finally:
             self._menu.grab_release()
-        self._root.mainloop()
+
+        while self.running == True:
+            try:
+                self._root.update_idletasks()
+                self._root.update()
+            except:
+                self.running = False
+        try:
+            self._root.destroy()
+        except:
+            pass
 
 
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