Anti-conceal virtual text with cursor

[MeanderingProgrammer]

Currently the conceal feature is applied to the buffer as a whole. Meaning anything concealed by Neovim / Tree Sitter is able to be hidden in normal mode but shown when the user's cursor enters that line. For example with links the states are:

• Insert Mode = Show Concealed Text = [link](https://example.com)
• Normal Mode with cursor not on line = Hide Concealed Text = link
• Normal Mode with cursor on line = Show Concealed Text = [link](https://example.com)
  • This is no longer the default behavior but can be if win_options -> concealcursor -> rendered is set to ''

Ideally we could do something similar with the virtual text added by this plugin, for example headings would have the following states:

• Insert Mode = No Virtual Text = ### Heading 3
• Normal Mode with cursor not on line = Show Virtual Text = <symbol> Heading 3
• Normal Mode with cursor on line = Hide Virtual Text = ### Heading 3

The tricky part here is we essentially want the opposite behavior of a conceal.

• Conceal = hide text until cursor enters, then show it
• We need = show text until cursor enters, then hide it

As far as I am aware there is not a builtin feature to support this kind of behavior.

Any solution that involves running an auto command on every cursor movement is IMO not viable, turns out it was kind of viable.

If a feature gets released that adds support for this or if I am missing something that already exists please let me know!

Pulled from original issue: https://github.com/MeanderingProgrammer/markdown.nvim/issues/14

[MeanderingProgrammer]

Some discussions that may or may not be relevant: https://github.com/neovim/neovim/pull/9496

[MeanderingProgrammer]

This should hopefully work now after merging: https://github.com/MeanderingProgrammer/markdown.nvim/commit/726c85cb9cc6d7d9c85af6ab093e1ee53b5e3c82.

Will keep this open to track any resulting problems.