Flickering when adjusting tooltip size/updating candidates

[ianyepan]

First of all, thank you for this package -- I used vanilla company before, but it always messes up the line numbers display and fringes, and the posframe approach solves this completely!

Nevertheless, the responsiveness is not quite at the same level as vanilla company. During typing, the posframe flickers quite a lot to fit in new candidates or adjust the frame size, while vanilla company seems to be handling the tooltip much more efficiently without any flicker.

In terms of usability, I haven't experienced slowing-down while typing as mentioned in #17 , but rather mostly the flickering issue is my main concern.

For your reference, here's my simple configuration:

(use-package company-posframe
  :custom
  (company-posframe-show-metadata nil)
  (company-posframe-show-indicator nil)
  :config
  (company-posframe-mode +1))

[dgutov]

What if you set x-wait-for-event-timeout to 0?

[dgutov]

@ianpan870102 What's your OS? Please include the value of system-configuration-features as well.

If you're on macOS is particular, though, you might want to try the most recent build from the master branch.

[ianyepan]

Hi @dgutov , thanks for getting back.
I was originally on macOS, and setting x-wait-for-event-timeout didn't help much of the issue, sadly.
I have since moved to Windows + WSL with X11 GUI, and company-posframe doesn't work properly in that environment, so I've switched to vanilla company as of now.

[dgutov]

I see.

FWIW, people report MobaXTerm working okay there: sebastiencs/company-box#76

[ianyepan]

Cheers! I am using VcXsrv at the moment. I'll give MobaXTerm a try as well.

[Yevgnen]

I don't have flickering in company-box but in company-posframe. Did you fix this? @dgutov

[dgutov]

@Yevgnen Neither is my project, I was just helping to provide more info while also debugging child frame problems on emacs-devel.

#56 might be similar to your problem. I'm not sure why the author closed it.

[Yevgnen]

@dgutov I'm sorry, I @ed the wrong person... 😅 Thanks for pointing me there!

[tumashu]

@Yevgnen I think I have no way to find the reason of this problem at the moment, for I have no mac machine to test :-\

[tumashu]

@ianyepan try the newest posframe and (setq company-tooltip-minimum-width 40), or a bigger value, maybe useful.

[Yevgnen]

@tumashu Seems the issue has been fixed here, thank you!

[zhenhua-wang]

I can still experience flickering in pgtk built. Setting pgtk-wait-for-event-timeout to 0 solves the problem for me...