Firstly, this abstract away behavior in the mod download models that can
also be applied to other types of resources into a superclass, allowing
other resource types to be implemented without so much code duplication.
For that, this also generalizes the APIs used (currently, ModrinthAPI
and FlameAPI) to be able to make requests to other types of resources.
It also does a general cleanup of both of those. In particular, this
makes use of std::optional instead of invalid values for errors and,
well, optional values :p
This is a squash of some commits that were becoming too interlaced
together to be cleanly separated.
Signed-off-by: flow <flowlnlnln@gmail.com>
In order to access the ModFolderModel from the ModFolderPage, i created
a new m_model for the correct type, shadowing the m_model of type
ResourceFolderModel. This creates two shared_ptr references to the same object,
but since they will have the same lifetime, it doesn't generate a memory
leak.
Signed-off-by: flow <flowlnlnln@gmail.com>
Previously, the Shaders, Texture packs and Resource packs tabs had as
parent the ModFolderPage, making it so that making changes only to the
Mods page would require checking the id of the page for the correct one.
This was hackish and error-prone.
Now, those pages all inherit from a single class, ExternalResourcesPage,
that handles the basic behaviour of all of them, while allowing for
individual modification in code.
This is still not a clear separation, since internally, all those
resources are derived from Mods, so for now there's still some awkward
common code :/
