[FEATURE] - Binary selection for block nodes

[miguelcmedeiros]

Your Info
Superlist

User Behavior
Currently the selection of block nodes (e.g. images or horizontal rules) is implemented as UpstreamDownstreamNodeSelection, which allows to place the selection at one of the ends of the node (upstream or downstream). For block nodes it feels more natural to have binary selection, where the node is either selected or not.

Although BinarySelection and BinaryNodePosition exists in code it is not used anywhere, but it seems like SuperEditor supported binary selection or at least was planned to.

[matthew-carroll]

@angelosilvestre why don't you take a stab at integrating binary selection. If you get stuck, let me know.

@miguelcmedeiros can you clarify where you'd like to see this used? Do you expect that all non-text components should be able to understand both UpstreamDownstreamSelections and BinarySelections? Or should there be two sets of components? Or just certain components should be replicated to use BinarySelection?

[miguelcmedeiros]

@matthew-carroll it's difficult to say what would be the approach, since that might bound to the current APIs and by how much of a breaking change this would be.

Probably @angelosilvestre will have some insights about this once he dives into it and figures out what's possible.

[matthew-carroll]

@miguelcmedeiros - I'm not sure that he will. As the issue is currently written, we seem to lack both a clear motivating UI/UX, and also any suggestion for what should change.

You've mentioned in the issue that we have a selection type that's not used, and you've mentioned in general that the unused selection type would make more sense when editing with blocks. The first part is definitely true, the second part might be true in some situations, but certainly isn't true in all situations.

So I do think we need a bit more guidance as to what the output from this ticket should be. If Superlist wants/needs binary selection for certain components, which ones are those? And what would be the most convenient change for Superlist? I think those are important guiding answers for @angelosilvestre's investigation.

[matthew-carroll]

@miguelcmedeiros can you provide more guidance on this?

[matthew-carroll]

@miguelcmedeiros I think we're still looking for guidance on what you'd like us to do here.