Re: New Context Menu

[Ergus]

On Fri, Aug 20, 2021 at 03:36:33PM +0300, Eli Zaretskii wrote:
> > Date: Fri, 20 Aug 2021 14:26:05 +0200
> > From: Ergus <spacibba@aol.com>
> > Cc: Juri Linkov <juri@linkov.net>, emacs-devel@gnu.org
> >
> > >> I don't understand how the behavior of the context menu could be
> > >> different from the behavior of the old binding [C-down-mouse-3]
> > >> when both have the same implementation.
> > >
> > >I cannot say I understand that in detail, either, but the fact is it
> > >does.  Maybe it's translation from C-down-mouse-3 to C-mouse-3?
> > >
> > No. C-down-mouse-3 is a modified mouse event; emacs gets it but not the
> > equivalent up events (C-up-mouse-3 for example) but it gets somehow the
> > up-mouse-3 event.
>
> There's no up-mouse-N events in Emacs, AFAIK.  There's only
> down-mouse-N events and mouse-N events; the latter are generated when
> Emacs internally sees the Nth button pressed and released.
Maybe the problem is that mouse-N events are generated when we release
the mouse-N key. But no C-mouse-N event is generated when Control is
hold and mouse-N key released.

If this is intended, then it is the reason why the context-menu behavior
is different than other menus bound to modified mouse events.

> > For example:
> >
> > Try C-down-mouse-3 then Release Control and after that release the mouse
> > button. You will see a similar issue.
>
> What issue is that?
>
> When you do what you describe, Emacs doesn't generate the C-mouse-3
> event because it never sees the button released with the Ctrl
> modifier.  This is expected and documented.