GNU bug report logs - #37700
27.0.50; undo mouse-drag-and-drop-region ineffective

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From: Mattias Engdegård <mattiase <at> acm.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 37700 <at> debbugs.gnu.org, tkk <at> misasa.okayama-u.ac.jp, homeros.misasa <at> gmail.com
Subject: bug#37700: 27.0.50; undo mouse-drag-and-drop-region ineffective
Date: Wed, 16 Oct 2019 17:27:05 +0200

[Message part 1 (text/plain, inline)]

12 okt. 2019 kl. 19.53 skrev Eli Zaretskii <eliz <at> gnu.org>:
> 
> Or maybe have those commands have an 'undo' property which would tell
> 'undo' to treat them specially.  Like we do with delete-selection.

After trying various approaches, the attached patch looks somewhat promising. It adds a new element type to buffer-undo-list, `unconfined', which disables selective undo for one record. Consider it a proof-of-concept.

While it has the advantage of not requiring the user to change any settings, I still prefer the first approach (an option to disable undo confinement), as it's less intrusive and more generally useful. However, this should work as well.

[0001-Don-t-confine-undo-of-mouse-drag-and-drop-to-the-reg.patch (application/octet-stream, attachment)]

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