Re: Undocumented menu feature?

["Jan Djärv" <jan.h.d@swipnet.se>]

Den 2014-10-03 22:42, Stephen Berman skrev:
> On Thu, 2 Oct 2014 18:50:24 +0200 Jan Djärv <jan.h.d@swipnet.se> wrote:
>
>> Hi.
>>
>> 2 okt 2014 kl. 17:46 skrev Sergey Organov <sorganov@gmail.com>:
>>
>>> Jan Djärv <jan.h.d@swipnet.se> writes:
>>>
>>>> Hi.
>>>>
>>>> 2 okt 2014 kl. 16:34 skrev Sergey Organov <sorganov@gmail.com>:
>>>>
>>>>> Hello,
>>>>>
>>>>> I've asked this in help-gnu-emacs, but nobody seems to have a clue
>>>>> there. Hopefully some developer(s) knwow.
>>>>>
>>>>> Here is the reference:
>>>>>
>>>>> http://lists.gnu.org/archive/html/help-gnu-emacs/2014-10/msg00007.html
>>>>>
>>>>> And here is my original question:
>>>>>
>>>>> I suddenly found that my emacs (GNU Emacs 23.2.1, running on
>>>>> Debian/Gnome) is capable of "detaching" some sub-menus and putting them
>>>>> into separate frames. For example, if I click "File" in the main menu,
>>>>> submenu appears containing dashed line at the top, and if I click on
>>>>> that dashed line, entire "File" submenu appears in a separate frame.
>>>>>
>>>>> I can't find anything about the feature by googling for it. Could somebody
>>>>> please point me to relevant documentation?
>>>>
>>>> We don't have Emacs specific documentation for this, it is a standard
>>>> Gtk+ feature. About to be deprecated in Gtk+ I think.
>>>
>>> Thanks, but first I don't see it in any other application but Emacs, and
>>> second it looks to be somehow controlled from within Emacs:
>>>
>>> Some of Emacs submenus do have it, and some don't. For example, in
>>> "Options", the "Line Wrapping in this Buffer" submenu has the dashed
>>> line, while neither "Mule (Multilingual Environment)" nor "Customize
>>> Emacs" have one.
>>>
>>> I can't figure any template, as some submenus of non-detachable menus
>>> could be detachable, and vice versa. Moreover, ["Tools" "Spell
>>> Checking"] has this active dashed line right in the middle (between
>>> "Complete Word Fragment" and "Complete Word"), not at the top.
>>
>> I don't have this, it mihgt be a Gtk theme issue.  I have dashed lines on all
>> menus at the top.
>
> I also don't see the dashed line in the middle of the submenues Sergey
> refers to; however, I did see it once in the Todo mode submenu "Display
> and Printing", but after leaving and revisiting the Todo buffer, the
> dashed line was at the top of that submenu, as with all other submenues,
> and I haven't seen the odd display again, so perhaps there is some kind
> of timing issue or race condition in the Gtk display.
>
> On the other hand, I do confirm the lack of a dashed line in the Options
> submenu "Customize Emacs", also with -Q and every time I've tried since
> the OP prompted me to look; so this seems to be a different bug.
> (However, that submenu is the only one where I've seen the dashed line
> missing; unlike the OP, I do see the line in the "Mule" submenu.)

Bugs where present, I have fixed them in trunk.
I can understand how the tearoff in the middle of the menu could happen, but I 
have not seen it.  Fixed now.

	Jan D.