Must prevent switching from recursive edit buffers

Must prevent switching from recursive edit buffers

[Jean Louis]

I would like to find the solution to prevent me as user to switch away
from the recursive edit.

Recursive edit is not file editing. In my case it is editing of the
database values, in general strings. That is what I am using currently
7200 times per month, and do not need different solution at this moment.

I would like to ensure, that if I am switching away from a buffer
which I am editing with `recursive-edit', that I am warned, or that I
can ensure that switch is detected, so that I can invoke other
functions such as asking user to save buffer, or automatically saving
it, or closing the buffer.

I am testing this variable:
(add-hook 'window-buffer-change-functions 'my-speak nil t)

I can see:

Its value is (my-speak)
Local in buffer *mail*; global value is nil

(defun my-speak (&optional window)
(rcd-message "%s" window)
(rcd-speak "Hello there"))

And I can here voice when I for example, split the window.

And I can see message: #<window 224 on *mail*>

Which is alright, but I cannot hear message when I switch away from
buffer.

If I give it global value, then it will give me message.

That means it will be invoked in the other buffer, but then how do I
recognize that previous buffer is the one with recursive edit?

Maybe I could make function to switch to window quickly, recognize if
it has recursive edit, or maybe recognize if some buffer local
variable has been set, to stop that recursive edit or record value
from inside.

I see this on above change:
#<window 224 on *mail*>

Best would be to have list of recursive edit buffers but sadly I do
not know how to get it. All I can see is in modeline [(Mail WK Fill)]
which indicates there is one or 3-4 or 10 pending recursive buffers,
but they are not shown in any list. 

If I list all buffers, and delete all of them, recursive-edit buffers
still remain hidden.

Maybe solution could be setting up global functions for
'window-buffer-change-functions to detect at other window, if
recursive-edit buffer is still open, in order to close it, save buffer
into the database;

(abort-recursive-edit) is not quite a solution, as that means my
editing my be lost.

Basically, I would like to keep 1 recursive-edit at maximum, not more.

I appreciate if someone finds better approach to solve the problem of
pending recursive-edit buffers.

Jean

RE: [External] : Must prevent switching from recursive edit buffers

[Drew Adams]

I'm not an expert on recursive edit.  But I think
that (apart from the special case of a minibuffer)
a recursive edit isn't in any way buffer or mode
or anything else specific - it's global.

One thing you can do, which doesn't directly
address your question, is to make it more obvious
when you're in a recursive edit, and at what level.

For that, the little library `rec-edit.el' can
help.

Description:

https://www.emacswiki.org/emacs/RecursiveEdit#rec-edit.el

Code:

https://www.emacswiki.org/emacs/download/rec-edit.el

Re: Must prevent switching from recursive edit buffers

[Stefan Monnier via Users list for the GNU Emacs text editor]

> I would like to ensure, that if I am switching away from a buffer
> which I am editing with `recursive-edit', that I am warned, or that I
> can ensure that switch is detected, so that I can invoke other
> functions such as asking user to save buffer, or automatically saving
> it, or closing the buffer.

I can't understand the above.  You start talking about "I" doing things
which I associate with user actions, but then you say "I can invoke other
functions such as asking user to save buffer" suggesting "I" is not the
user after all.


        Stefan

Re: Must prevent switching from recursive edit buffers

[Jean Louis]

* Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> [2024-12-19 02:43]:
> > I would like to ensure, that if I am switching away from a buffer
> > which I am editing with `recursive-edit', that I am warned, or that I
> > can ensure that switch is detected, so that I can invoke other
> > functions such as asking user to save buffer, or automatically saving
> > it, or closing the buffer.
> 
> I can't understand the above.  You start talking about "I" doing things
> which I associate with user actions, but then you say "I can invoke other
> functions such as asking user to save buffer" suggesting "I" is not the
> user after all.

Yes, as whatever I do, users such as staff members will do too. That
is minor problem. I = user and user = others;

Basically, I would like to recognize that bufer where I am invoking
recursive-edit is at some moment not visible any more, and I would
like programmatically to find out WHICH buffer is it.

Now I have no idea which buffer is it, and multiple recursive-edits
stay active, even though there is no buffer with recursive-edit.

That is some mystery. Those recursive-edit buffers show as

[[[[[(Mail WK Fill)]]]]]

but I cannot know in the list of buffer and CANNOT SEE to what buffers
those [[[[]]]] belogns.

And if I inspect buffers, they are not in recursive-edit

It means that [[[[[[[[[[[]]]]]]]]]]] recursive edit buffers disappear
from buffer list.

-- 
Jean Louis