GNU bug report logs - #41984
28.0.50; term.el's select-window call interacts badly with modeline

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Message #11 received at 41984 <at> debbugs.gnu.org (full text, mbox):

From: Herman, Géza <geza.herman <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>, Herman <at> debbugs.gnu.org
Cc: 41984 <at> debbugs.gnu.org
Subject: Re: bug#41984: 28.0.50; term.el's select-window call interacts badly
 with modeline
Date: Sun, 21 Jun 2020 18:18:20 +0200

I don't have a strong opinion on this. I just felt that selecting a 
window because an output arrived is not a right thing to do. Any hooks 
which are called during this temporarily set selected-window will have 
the wrong idea which is the actual selected window (I'm not exactly 
sure, why the bug happens though, I just suppose this is the reason).

I've checked now, spaceline behaves exactly the same as doom modeline. 
But if you think that this is not a term.el bug, please tell the 
reasons, and I'll reopen my doom-modeline issue with these reasons.

On 6/21/20 6:02 PM, Eli Zaretskii wrote:
>> From: Herman <at> debbugs.gnu.org, Géza <geza.herman <at> gmail.com>
>> Date: Sun, 21 Jun 2020 17:43:09 +0200
>>
>> I noticed that the call "(select-window win)" in term.el (in
>> term-emulate-terminal) interacts badly with doom modeline. This
>> select-window call confuses the modeline which is the active window, and
>> it causes the terminal's modeline displayed as active, as soon as the
>> terminal receives output, no matter which is the actual active window.
>> And the real active window is displayed with an inactive modeline.
>>
>> I found if I modify this "(select-window win)" line to "(select-window
>> win t)", the bug doesn't happen anymore (I'm not sure whether it's a
>> correct fix in all regards or not).
>>
>> Here's my full description of the issue, with screenshot:
>> https://github.com/seagle0128/doom-modeline/issues/355
>>
>> Describe: When one window has an ansi-term, which constantly outputs
>> some text, and another window has the focus, then doom-modeline behaves
>> strange: the mode line of the focused window loses activity, and part of
>> ansi-term's mode line becomes active.
> Any reason why you decided this isn't a doom modeline bug?

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