Adding option in settings to determine which model (outline, folding or indentation) should be used by default by sticky scroll

[aiday-mar]

Fixes #162904

Allowing the users to choose between the folding model, indentation model and the outline model to decide what lines to stick. The user may choose between three setting values which lead to different fall backs

• Outline Model -> Folding Model -> Indentation Model
• Folding Model -> Indentation Model
• Indentation Model

[aeschli]

_languageFeaturesService.foldingRangeProvider needs to match the provider used.
So the _updateDebounceInfo needs to go inside modelProvider.computeStickyModel

[Andarist]

Is there a way to customize this provider through an extension? Is this kind of a feature something that you'd consider supporting? :)

[aiday-mar]

Hi thanks for commenting. The outline model provider and folding model provider are both generated from your installed extensions. You can implement your own DocumentSymbolProvider in an extension for example which would be used to generate the sticky scroll model.

[Andarist]

Oh, that's super awesome - I will have to explore this more in-depth! A thing that I'd like to implement is to "fold" multiple levels into one in JavaScript/TS files.

For example, for an object like this:

const machine = createMachine({
  states: {
    a: {
      states: {
        b: {}
      }
    }
  }
})

we get a sticky header like:

states
  a
    states
      b

and in the ideal world, I'd like to "fold" this into

a > b (states path)

I think that perhaps folding object paths into a single line could be desirable for most people in general-purpose situations:

states > a > states > b

Otherwise, the allowed nested levels run out pretty quickly (5 by default) for schema-like objects that tend to have many nesting levels. I could probably live with the full object path in a single line - but if I could customize this (through an extension) even further to discard the "redundant" states keys (in this example) for domain-specific objects then it would be even cooler.

Anyway, I realize this is really a feature request so I will stop babbling (and might create an actual feature request for this in the future)... Thank you for the answer!