Fix 'References' Gramplet for issue when activated during an import (#584)

* Fix 'References' Gramplet for issue when activated during an import

Fixes #10507

* disable Application Menu during import

gramps/gui/dbloader.py

@@ -506,10 +506,9 @@ class GrampsImportFileDialog(ManagedWindow):
 
                 for plugin in pmgr.get_import_plugins():
                     if extension == plugin.get_extension():
-                        self.do_import(import_dialog,
-                                       plugin.get_import_function(),
-                                       filename)
                         self.close()
+                        self.do_import(plugin.get_import_function(),
+                                       filename)
                         if callback is not None:
                             callback(self.import_info)
                         return
@@ -565,12 +564,11 @@ class GrampsImportFileDialog(ManagedWindow):
 
         return False
 
-    def do_import(self, dialog, importer, filename):
+    def do_import(self, importer, filename):
         self.import_info = None
-        position = self.window.get_position() # crock
-        dialog.hide()
-        self.window.move(position[0], position[1])
         self._begin_progress()
+        self.uistate.set_sensitive(False)
+        self.uistate.viewmanager.enable_menu(False)
 
         try:
             #an importer can return an object with info, object.info_text()
@@ -590,6 +588,8 @@ class GrampsImportFileDialog(ManagedWindow):
                 parent=self.uistate.window)
         except Exception:
             _LOG.error("Failed to import database.", exc_info=True)
+        self.uistate.set_sensitive(True)
+        self.uistate.viewmanager.enable_menu(True)
         self._end_progress()
 
     def build_menu_names(self, obj): # this is meaningless since it's modal

gramps/gui/viewmanager.py

@@ -1279,6 +1279,44 @@ class ViewManager(CLIManager):
         config.set('paths.recent-file', '')
         config.save()
 
+    def enable_menu(self, enable):
+        """ Enable/disable the menues.  Used by the dbloader for import to
+        prevent other operations during import.  Needed because simpler methods
+        don't work under Gnome with application menus at top of screen (instead
+        of Gramps window).
+        Note: enable must be set to False on first call.
+        """
+        if not enable:
+            self.action_st = (
+                self.actiongroup.get_sensitive(),
+                self.readonlygroup.get_sensitive(),
+                self.undoactions.get_sensitive(),
+                self.redoactions.get_sensitive(),
+                self.undohistoryactions.get_sensitive(),
+                self.fileactions.get_sensitive(),
+                self.toolactions.get_sensitive(),
+                self.reportactions.get_sensitive(),
+                self.recent_manager.action_group.get_sensitive())
+            self.actiongroup.set_sensitive(enable)
+            self.readonlygroup.set_sensitive(enable)
+            self.undoactions.set_sensitive(enable)
+            self.redoactions.set_sensitive(enable)
+            self.undohistoryactions.set_sensitive(enable)
+            self.fileactions.set_sensitive(enable)
+            self.toolactions.set_sensitive(enable)
+            self.reportactions.set_sensitive(enable)
+            self.recent_manager.action_group.set_sensitive(enable)
+        else:
+            self.actiongroup.set_sensitive(self.action_st[0])
+            self.readonlygroup.set_sensitive(self.action_st[1])
+            self.undoactions.set_sensitive(self.action_st[2])
+            self.redoactions.set_sensitive(self.action_st[3])
+            self.undohistoryactions.set_sensitive(self.action_st[4])
+            self.fileactions.set_sensitive(self.action_st[5])
+            self.toolactions.set_sensitive(self.action_st[6])
+            self.reportactions.set_sensitive(self.action_st[7])
+            self.recent_manager.action_group.set_sensitive(self.action_st[8])
+
     def __change_undo_label(self, label):
         """
         Change the UNDO label

gramps/plugins/gramplet/backlinks.py

@@ -64,7 +64,7 @@ class Backlinks(Gramplet):
         Display the back references for an object.
         """
         for classname, handle in \
-                        self.dbstate.db.find_backlink_handles(active_handle):
+                self.dbstate.db.find_backlink_handles(active_handle):
             name = navigation_label(self.dbstate.db, classname, handle)[0]
             self.model.add((_(classname), name, handle, classname))
         self.set_has_data(self.model.count > 0)
@@ -73,7 +73,7 @@ class Backlinks(Gramplet):
         """
         Return True if the gramplet has data, else return False.
         """
-        if active_handle is None:
+        if not active_handle:
             return False
         for handle in self.dbstate.db.find_backlink_handles(active_handle):
             return True