Re: Changes for emacs 28

[Robert Pluim]

>>>>> On Mon, 14 Sep 2020 09:53:28 +0200, Thibaut Verron 
>>>>> <thibaut.verron@gmail.com> said:
    >> 
    >> We could set 'kill-buffer-hook' to a querying function in buffers
    >> created via the toolbar.
    >> 

    Thibaut> There is already a (buffer-local) variable buffer-offer-save 
which, set to
    Thibaut> 'always, causes save-some-buffers to query for save the 
corresponding
    Thibaut> buffer, if non-empty.

Right, but toolbar-save doesnʼt run save-some-buffers. That could be
added, but it seems people feel toolbar space is precious (here the
default toolbar uses slightly more than 50% of the available width
when running -Q)

    Thibaut> And save-buffers-kill-emacs calls save-some-buffers with the second
    Thibaut> argument set to t, aka, "also save some non-file buffers".

    Thibaut> It really looks as if this scenario is already planned, but just 
not for
    Thibaut> entry from the tool-bar.

That covers the 'exiting emacs' scenario, weʼd still need something to
cover the 'clicked the kill-buffer button'. Or if we really want to go
whole hog, we automatically save the state of buffers created via the
toolbar, and restore them on startup.

Robert