From: Eli Zaretskii <eliz@gnu.org>
To: Paul Rankin <hello@paulwrankin.com>
Cc: 28844@debbugs.gnu.org, agrambot@gmail.com
Subject: bug#28844: 26.0.90; display-line-numbers-mode should call window-configuration-change-hook
Date: Tue, 17 Oct 2017 05:41:56 +0300 [thread overview]
Message-ID: <83bml6fqbv.fsf@gnu.org> (raw)
In-Reply-To: <1508200557.2705080.1141019864.6A2B8BD5@webmail.messagingengine.com> (message from Paul Rankin on Tue, 17 Oct 2017 10:35:57 +1000)
> From: Paul Rankin <hello@paulwrankin.com>
> Cc: agrambot@gmail.com, 28844@debbugs.gnu.org
> Date: Tue, 17 Oct 2017 10:35:57 +1000
>
> Your mode updates the display on its own without notifying Emacs. The basic conceptual problem is that “every time you need the value” is predicated on when display-line-numbers-mode changes the value. There’s no way for another lisp program to know when that is.
But if you always call line-number-display-width, you don't need to
know that, because that function will return the current value (which
will change to reflect the changes in the space taken by line
numbers).
So I don't think I understand the problem, and without that I cannot
think of a solution. Can you clarify the problem, please?
next prev parent reply other threads:[~2017-10-17 2:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-15 7:56 bug#28844: 26.0.90; display-line-numbers-mode should call window-configuration-change-hook Paul Rankin
2017-10-15 9:41 ` martin rudalics
2017-10-15 11:08 ` Paul Rankin
2017-10-15 12:12 ` martin rudalics
2017-10-15 13:27 ` Paul Rankin
2017-10-15 14:59 ` Eli Zaretskii
2017-10-16 3:22 ` Paul Rankin
2017-10-16 4:59 ` Alex
2017-10-16 5:14 ` Paul Rankin
2017-10-16 14:48 ` Eli Zaretskii
2017-10-17 0:35 ` Paul Rankin
2017-10-17 2:41 ` Eli Zaretskii [this message]
2017-10-17 4:19 ` Paul Rankin
2017-10-17 5:44 ` Eli Zaretskii
2017-10-17 7:13 ` Paul Rankin
2017-10-17 8:33 ` Eli Zaretskii
2017-10-20 9:42 ` Eli Zaretskii
2017-12-08 2:43 ` Noam Postavsky
2017-12-08 14:48 ` Eli Zaretskii
2017-12-09 15:30 ` Paul Rankin
2017-12-09 16:01 ` Eli Zaretskii
2017-10-15 14:47 ` Eli Zaretskii
2017-10-16 7:41 ` martin rudalics
2017-10-22 7:20 ` Paul Rankin
2017-10-22 14:27 ` Eli Zaretskii
2017-12-08 2:14 ` Paul Rankin
2017-12-08 15:22 ` Eli Zaretskii
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