bug#6774: Cut and paste with C-w/mouse-2 not working?

[Kenichi Handa]

In article <jwv62zgdynz.fsf-monnier+emacs@gnu.org>, Stefan Monnier 
<monnier@iro.umontreal.ca> writes:

>>> So the C-f (or any other movement) would cause the selection of PRIMARY?
> > When transient-mark-mode is on (including temporary one), I
> > think yes.
>>> That would have to be performed in some kind of post-command-hook, which
>>> is undesirable.
> > We can add a proper code to set_point_both like this code in
> > init_iterator (xdisp.c).

> Putting it in set_point_both would be much worse than on
> post-command-hook (set-point-both is a very low-level function,
> triggered in many more cases than just moving the cursor).

If a test to check if we have to newly own the PRIMARY
selection is trivial, there should be no problem.

Another candidate for checking that is somewher near here in
command_loop_1 () (around line 1818).

    finalize:

      if (current_buffer == prev_buffer
          && last_point_position != PT
          && NILP (Vdisable_point_adjustment)
          && NILP (Vglobal_disable_point_adjustment))
        {

This place is similar to post-command-hook, but we can avoid
unnecessary Lisp calls in many cases.

---
Kenichi Handa
handa@m17n.org