In some cases, e.g. when calamares is used as an "initial setup" tool,
we may want to user to go through all the configuration steps in order
to end up with a usable system.
Therefore, disabling the "Cancel" button can be useful in this case.
This commit adds an option to settings.conf which disables this button
when set to "true". If the option is not present in the settings file,
the default behavior ("Cancel" button enabled & visible) is enforced.
Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
- Settings is just a settings class, no UI involved, so
move to libcalamares where it can be used also from
system helpers.
- YAML utilities are useful at a lower level of the stack, too.
