Add a filter to control the list of Block Editor preferences

[aurooba]

What problem does this address?

There is no way to control the Block Editor Preferences list at the moment. Ideally, if I wanted to make sure the pre-publish checks were required and no one could turn them off, there's no built-in way to make that happen.

What is your proposed solution?

Ideally there would be a filter like there is one for the editor and other places, that allows removal of certain preferences (or additions through a SlotFill, as well)

[mtias]

This fell through the cracks a bit — @gziolo can we include it in some of the extensibility overviews? Seems like a good step.

[gziolo]

This fell through the cracks a bit — @gziolo can we include it in some of the extensibility overviews? Seems like a good step.

I didn’t find any overview issue that tracks extensibility ideas for the editor. I’ll keep searching, as I’m sure we had one a long time ago. Otherwise, we can start a new one to have a better picture of what issues people submitted.

There is an existing issue that seem to be related to this one: #25585.

[talldan]

The main things missing seem to be:

• Controlling the visibility of existing preference options in the UI.
• Extending the preference modal to add new options/sections.

So really control over the UI.

I think the API should be there (or mostly there) for controlling the data side of preferences (setting default values and updating values programatically) via the preferences package, though I'm not aware of anyone actively using it.