Use buffer for preview window instead of the file.

[Nikolas Setiawan]

Is your feature request related to a problem? Please describe.
Currently, when opening coc-reference, the preview window tries to open the file instead of the buffer. Is there an option to make the preview to show the buffer instead? This causes problems like:

unable to open reference for new file

and misaligned preview on an unsaved file

I have not tried on other functionality other than reference, but I imagine functions like diagnostics would also benefit from this.

Describe the solution you'd like
Is it possible to open the buffer as a preview instead by default or as an option? That should fix this problem

Thank you.

[Antoine]

Thanks for reporting this issue.
I don't think it is doable as the preview script opens a file outside vim and does not have the view of vim's current buffers.

If you find a way to circumvent that, please reopen this issue.

Cheers 🥂