bug#69738: Followup

[rameiko87@posteo.net]

Dear Eli,

To answer your question: your patch doesn't work, and the reason is that 
I have Rmail on frame #6 and Elfeed on frame #3. Rmail-reply creates 
frame #42, from which both C-x 5 0 and C-x 5 o land on frame #27. C-u - 
C-x 5 o goes from #42 to #3, and also from #27 to #3 after #42 was 
deleted.

As for the current code for GUI, I can't understand why it _works_ since 
the same exact problem should arise. I never used the GUI but I would 
expect that it actually doesn't work for GUI either, for the same 
reasons above. I think the design of Emacs makes the order of frames 
rigid, so every new frame can be arbitrarily far from the original Rmail 
frame.

One way is to remember the frame where Rmail was and revert back to that 
one after deleting the reply frame.

On 14.04.2024 18:30, Eli Zaretskii wrote:
>> Why not just remove the condition of (display-multi-frame-p)? It's
>> neater, and I can't see any drawbacks compared to your patch (but the
>> fact that your code insists on switching to other before deleting the
>> frame makes me think there must be some reason...?)
> 
> Yes, I have my reasons: I'd like to make sure we switch to the exact
> frame the user wants -- the one showing the Rmail buffer.  Unlike on
> GUI displays, only a single frame is shown on a TTY, so if we
> accidentally switch to the wrong frame, the user will not see the
> frame they need, something that does happen on GUI terminals.
> 
> Does the patch as I sent it work for you?  If not, please tell what
> doesn't work.