Re: New Context Menu

[Ergus <spacibba@aol.com>]

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.
>