Bug in TreeListWidgets.py

[claudiux]

Distribution

Mint 22

Package version

Cinnamon 6.2.9

Graphics hardware in use

No matters

Frequency

Always

Bug description

When in the settings-schema.json file of a Spice (an applet here) we define a list with "show-buttons" option set to false, an error occurs executing cinnamon-settings applets UUID_of_Spice:

Traceback (most recent call last):
  File "/usr/share/cinnamon/cinnamon-settings/bin/TreeListWidgets.py", line 139, in toggle_checkbox
    self.list_changed()
  File "/usr/share/cinnamon/cinnamon-settings/bin/TreeListWidgets.py", line 335, in list_changed
    self.update_button_sensitivity()
  File "/usr/share/cinnamon/cinnamon-settings/bin/TreeListWidgets.py", line 218, in update_button_sensitivity
    self.remove_button.set_sensitive(False)
    ^^^^^^^^^^^^^^^^^^
AttributeError: 'NewClass' object has no attribute 'remove_button'
Traceback (most recent call last):
  File "/usr/share/cinnamon/cinnamon-settings/bin/TreeListWidgets.py", line 221, in update_button_sensitivity
    self.remove_button.set_sensitive(True)
    ^^^^^^^^^^^^^^^^^^
AttributeError: 'NewClass' object has no attribute 'remove_button'

Steps to reproduce

1. Install the SpicesUpdate applet (which has some lists with "show-buttons" option set to false.
2. Execute cinnamon-settings applets SpicesUpdate@claudiux in a terminal.
3. Open the Applets tab, then check or uncheck a switch next to an applet name.
4. Wait 10 seconds. The error message appears in the terminal.

Expected behavior

No errors appear. No waiting time to check or uncheck a switch in a list.

Additional information

In /usr/share/cinnamon/cinnamon-settings/bin/TreeListWidgets.py, function def update_button_sensitivity(self, *args):, we don't need to do anything when the “show-buttons” option is set to false.