diff options
| -rw-r--r-- | ranger/gui/displayable.py | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/ranger/gui/displayable.py b/ranger/gui/displayable.py index 62eb5300..4a5bcde6 100644 --- a/ranger/gui/displayable.py +++ b/ranger/gui/displayable.py @@ -292,9 +292,19 @@ class DisplayableContainer(Displayable): obj.parent = self def replace_child(self, old_obj, new_obj): - """Replace the old object with the new instance in the container.""" - self.container[self.container.index(old_obj)] = new_obj - new_obj.parent = self + """ + Replace the old object with the new instance in the container. + + The new object will have the same position in the list as old_obj. + If old_obj is not in the list, new_obj will simply be appended. + """ + try: + index = self.container.index(old_obj) + except ValueError: + self.add_child(new_obj) + else: + self.container[index] = new_obj + new_obj.parent = self def remove_child(self, obj): """Remove the object from the container.""" |