ivy-posframe randomly blink

[stardiviner]

When I raise up ivy-posframe, it will randomly blink screen. Is there a way to debug it?

[tumashu]

黑屏？ 贴个图看看

[stardiviner]

不是黑屏，就是Emacs闪烁。我录制个视频吧。我试了录制为gif。但是gif里看不出来闪烁。

是整个Emacs窗口闪烁。

[stardiviner]

I recorded another video not from inside of Emacs with simpledesktoprecord which I previous video use Emacs package gif-screencast. Then I convert video to gif (because GitHub does not support upload video).

Because it's too large. so I try to compress it. I paste a download link here. https://www.iloveimg.com/download/hm37qy2j4gbq912krfwc9ng16bmnAqwbzlxt3qy44c2qdvsw08A1mhcq4l01r456bn6z1AvgA17hrkgykjh5b8A1tqxA2rvs9fArtr3Ahr5hAlz9kxkpAhqch7kscrccc6bm8bgc5dv1fwgxvcAltrvr89r7r0k2d9zn67Ajj6sv84jwt3mq/1-cf

[tumashu]

说实话，确实不知道这个是什么原因导致的。。。。。抱歉

[conao3]

The issue still remained? @stardiviner ?

[stardiviner]

Yes, still remained.

[conao3]

OK. Sorry about that. I'll see it later.

[conao3]

Could you tell us about your environment? What version your Emacs on what OS? And how to build/download Emacs?

[stardiviner]

• Arch Linux OS with latest version kernel:

$ uname -a
Linux dark 5.1.15-arch1-1-ARCH #1 SMP PREEMPT Tue Jun 25 04:49:39 UTC 2019 x86_64 GNU/Linux
`

- compiled from master branch source code Emacs, version: `GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.5) of 2019-02-22`

- tested with latest version `ivy-posframe`.

Thanks for checking out this issue :)

[conao3]

OK. Thanks for your environment information!

[zhenwenc]

升级 emacs 27 后，输入或者滚动的时候 ivy-posframe 会闪，请问知道是什么原因吗？我用的是 homebrew-emacsmacport.

[kongds]

我也有类似的问题 好像是每回ivy-posframe--display时都会调用posframe-show导致的。所以只在第一次时调用posframe-show，就不会闪了。 有闪烁问题的可以试试看下面的代码

(defvar ivy-posframe--first-show t)
(defun ivy-posframe-cleanup ()
  "Cleanup ivy's posframe."
  (setq ivy-posframe--first-show t)
  (when (posframe-workable-p)
    (posframe-hide ivy-posframe-buffer)))
(defun ivy-posframe--display (str &optional poshandler)
  "Show STR in ivy's posframe with POSHANDLER."
  (if (not (posframe-workable-p))
      (ivy-display-function-fallback str)
    (with-ivy-window
      (if (not ivy-posframe--first-show)
          (with-current-buffer ivy-posframe-buffer
            (erase-buffer)
            (insert str))
          (setq ivy-posframe--first-show nil)
          (apply #'posframe-show
                 ivy-posframe-buffer
                 :font ivy-posframe-font
                 :string str
                 :position (point)
                 :poshandler poshandler
                 :background-color (face-attribute 'ivy-posframe :background nil t)
                 :foreground-color (face-attribute 'ivy-posframe :foreground nil t)
                 :internal-border-width ivy-posframe-border-width
                 :internal-border-color (face-attribute 'ivy-posframe-border :background nil t)
                 :override-parameters ivy-posframe-parameters
                 (funcall ivy-posframe-size-function)))
      (ivy-posframe--add-prompt 'ignore)))
  (with-current-buffer ivy-posframe-buffer
    (setq-local truncate-lines ivy-truncate-lines)))

[seagle0128]

亲测 @kongds 提供的方法有效。能否merge进代码库？ @tumashu

[tumashu]

这个 bug 和 https://github.com/tumashu/ivy-posframe/issues/114 一样吗？

[seagle0128]

这个可能 需要 @stardiviner 和 @kongds 确认下？

[stardiviner]

目前，我切换到macOS系统了，目前没有这个闪烁问题了。