Make ale#floating_preview#Show more similar to popup_create and return
the id of the window so it's easy to set the filetype of the resulting
buffer.
Update test stub version of Show() to return a win id (the current window
since it's not actually creating a window).
Test
* both tests still pass
rust-analyzer sometimes returns a hover result with language being
"text", but there's no syntax/text.vim, so this would fail with:
Error detected while processing function <SNR>150_VimOutputCallback[6]..<lambda>8[1]..ale#lsp#HandleMessage[30]..ale#hover#HandleLSPResponse[42]..ale#floating_preview#Show[13]..<SNR>161_VimShow:
line 13:
E484: Cannot open file syntax/text.vim
Only including the file when it actually exists fixes this.
* Add nvim floating window hover support
* Add configuration for float to replace preview
* preview#ShowFloating: qualify local variables
* Configure floating preview usecases individually
Also:
* Extract floating preview to its own file.
* Ignore 'stay_here' option. Moving into the floating preview window
seems confusing at best.
* Re-use existing floating preview window if it's still up.
* Flush out floating preview documentation.
* Watch cursor position changes per window
Floating previews open a new window, so when that window is written to,
it moves briefly there at a different position than the original window.
This makes repeated positions detected when positions are tracked at a
s: level. Instead, we change the variable to window scoped, which only
fires a message if the cursor has changed from the last position in
*that window*.
* g:ale_floating_preview cleanup
* floating_preview: add ALEDetail tests
* Fix fecs test missing runtime call
* Add ALEHover floating preview tests
Co-authored-by: Jan-Grimo Sobez <jan-grimo.sobez@phys.chem.ethz.ch>