Managing cursorline with coc-references

[nullromo]

I like to have cursorline set when I'm in insert mode, and I like to have nocursorline when I'm in normal mode.

To accomplish this, I have the following autocommands:

-- Highlight the current line in insert mode
vim.api.nvim_create_autocmd({'InsertEnter'}, {pattern = '*', command = 'set cursorline'})
vim.api.nvim_create_autocmd({'InsertLeave'}, {pattern = '*', command = 'set nocursorline'})
vim.api.nvim_create_autocmd({'BufEnter'}, {pattern = '*', command = 'set nocursorline'})

However, when I use coc-references, it pops up a temporary buffer and triggers the BufEnter event. Then when I try to scroll through the references with j and k I get lost because of nocursorline.

Anyone have an idea for how I can enable cursorline in the coc-references window while still disabling it in general in normal mode for my regular buffers? If I remove the BufEnter mapping and just rely on InsertLeave, then I get issues where I jump to one of the references and I'm in normal mode with cursorline set, which is not what I want.

[nullromo]

It turns out the solution is to only set nocursorline when entering a buffer that has a filetype. I noticed that this behavior was also showing up in NERDTree windows. It turns out windows like the coc-references window have no filetype. So a simple solution was to replace the autocmd pattern * with ?. See :h autocmd-pattern for more details.

- vim.api.nvim_create_autocmd({'BufEnter'}, {pattern = '*', command = 'set nocursorline'})
+ vim.api.nvim_create_autocmd({'BufEnter'}, {pattern = '?', command = 'set nocursorline'})