The Config object can hold all of the configuration information,
including also the requirements-checking parts. Move requirements-
checking configuration there, so it is shared and consistent
across welcome and welcomeq, regardless.
This repairs the test that expects the Config object to handle
**all** of the configuration, too.
- was filtering out the wrong URLs
- was not actually removing the invalid URLs
- extend API to make it possible to count / confirm the settings
- extend tests to demonstrate that API and the issues
- Branding, Settings, and ModuleManager may all be nullptr,
in which case the corresponding code shouldn't call methods
of those instances -- this is demonstrated by just creating
a Config object
- previously, updateSwapChoicesTr() wanted to be a static free function,
but it needs QObject::tr() ; drop the unnecessary parameter (since it
is a member function).
- when activating the page, the "guess" functions do their
work and afterwards the config is left in a "guessable"
state, but if the user makes a specific choice, then
the config leaves the "guessable" state and the user's
explicit choice is preserved.
FIXES#1744
- expose only intended API, guessLayout() becomes internal and static
- rename onActivate() since it was *called* for activation, but does
something totally different.
- Long and complicated, nested, lambdas are not convenient for reasoning.
- The debug messages from the innermost lambda have a totally useless
function name, which makes debugging harder.
- enforce consistent [PYTHON JOB]
- use CDebug() constructor, because the convenience macro's
introduce the function name -- that's the C++ function, so
it isn't useful for logging.
- do not link (explicitly) to Calamares libraries, the CMake
functions do that automatically.
- while here, tidy and remove commented-out-bits
- while here, remove unneeded includes
- the message had been arbitrarily changed; change it back
- update (warning) message when there is progress in checking the
model, so it doesn't stay at "unchecked" until you change language
- minor clean-ups
