Coc.nvim: Support scroll popup on vim8

[chemzqm]

Need use filter to support scroll of popup.

[andys8]

@chemzqm I'm using Vim 8.1 and have a floating window. I'm wondering why I can't get scrolling or <Plug>(coc-float-hide) to work as expected. Currently the floating window for diagnostics hides the code and I haven't figured out how to hide it temporarily. Is there implementation missing or should I create a new issue for this case?

[chemzqm]

It's popup, not floating window

[chemzqm]

Check vim's help for functions you can use

[andys8]

Ah, thanks for clarification. I didn't know there is a difference between floating and popup. So regarding "floating windows": Are you referring to anything else than <Plug>(coc-float-hide) (https://github.com/neoclide/coc.nvim/blob/98ebf00d590e0772bfbfc20a67003ec7935be420/plugin/coc.vim#L364) which is not working to hide a floating diagnostics for me in Vim 8.1.

[dedowsdi]

Wrote a temporary solution here , it scrolls first popup (might not belong to coc) found around cursor.

[pvonmoradi]

Isn't this a Vim limitation?

[chemzqm]

Fixed by 624549da