GNU bug report logs - #56662
29.0.50; Funny region highlights when highlight-nonselected-windows is t

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Visuwesh <visuweshm <at> gmail.com>
Cc: 56662 <at> debbugs.gnu.org, kevin.legouguec <at> gmail.com
Subject: bug#56662: 29.0.50; Funny region highlights when highlight-nonselected-windows is t
Date: Thu, 21 Jul 2022 15:19:05 +0300

> From: Visuwesh <visuweshm <at> gmail.com>
> Cc: Kévin Le Gouguec <kevin.legouguec <at> gmail.com>,
>   56662 <at> debbugs.gnu.org
> Date: Thu, 21 Jul 2022 16:52:06 +0530
> 
> [வியாழன் ஜூலை 21, 2022] Eli Zaretskii wrote:
> 
> >>     I kind of wish there was a third value for this user option;
> >>     e.g. (setq highlight-nonselected-windows 'lazy) to signify "keep
> >>     highlighting as-is when leaving the window, and never update it
> >>     until the window becomes current again"? 🤷
> >
> > How would that work, if you take into consideration that the region is
> > between the mark and point?
> 
> I can think of one way this could potentially work is by checking if the
> mark was made when window was active so making the mark "window-aware"?
> I.e., if two windows A and B show the same buffer and the user typed
> C-SPC when in window A, then the region would not show up in window B.
> Does this make sense?

So what happens if the user then types "C-x o" to switch to B?

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