Popup problems with GTK

Popup problems with GTK

[Stephan Stahl]

Hi.

Using a up-to-date cvs emacs, gtk toolkit and Gnome gives problems
with popups when the Gnome mouse option "Highlight the pointer when you
press Ctrl" is active.

emacs -Q
C-mouse-3 in any buffer and emacs hangs.

When i disable this Ctrl Highlighting or compile emacs without gtk the
popup does just work..

Stephan
-- 
Stephan Stahl

Re: Popup problems with GTK

[Jan D.]

Stephan Stahl wrote:

>Hi.
>
>Using a up-to-date cvs emacs, gtk toolkit and Gnome gives problems
>with popups when the Gnome mouse option "Highlight the pointer when you
>press Ctrl" is active.
>
>emacs -Q
>C-mouse-3 in any buffer and emacs hangs.
>  
>

This must be one of the most annoying features I've seen, and poorly 
implemented at that.  I can't imagine any Emacs user wanting this, Every 
Ctrl-press starts the animation, and there are a lot of ctrl-pressing 
going on in Emacs.  I've checked in a fix so that Emacs does not hang, 
that is the best we can do sort of changing GTK.  Other GTK apps don't 
handle this option well either, Gedit does not show the popup menu on 
Ctrl-button-3 when that option is activated (at least not the one in 
Gnome 2.8).


>When i disable this Ctrl Highlighting or compile emacs without gtk the
>popup does just work..
>

Not entirely true, you do get this for Motif based applications:

Warning:
    Name: popup_menu
    Class: XmMenuShell
    XtGrabKeyboard failed

The option grabs the ctrl key and when GTK can't get that grab, it 
silently refuses to pop up the menu.

    Jan D.

Re: Popup problems with GTK

[Stephan Stahl]

Hi Jan.

Jan D. said:
> This must be one of the most annoying features I've seen, and poorly
> implemented at that.  I can't imagine any Emacs user wanting this, Every
> Ctrl-press starts the animation, and there are a lot of ctrl-pressing
> going on in Emacs.  I've checked in a fix so that Emacs does not hang,

It's not that bad.  The animation does start on Ctrl-release and only when
no other key was pressed between Ctrl-press and Ctrl-release..  Try Ctrl-down,
shift-down,up and Ctrl-up -> no animation.  (Gnome 2.8)

>>When i disable this Ctrl Highlighting or compile emacs without gtk the
>>popup does just work..
>
> Not entirely true, you do get this for Motif based applications:
[..]
> The option grabs the ctrl key and when GTK can't get that grab, it
> silently refuses to pop up the menu.

Oh, you are right.  I just tried to omit the --with-gtk part and without
this the popup's toplevel entries work for me.  Choosing  a buffer after
C-mouse-1 did work, some submenu ala C-mouse-3 did not work.  Strange
thing..  I'll try your patch and report back..

Thanks,
Stephan
-- 
Stephan Stahl

Re: Popup problems with GTK

[Stephan Stahl]

Hi Jan.

Stephan Stahl said:
> thing..  I'll try your patch and report back..

This is very strange..

emacs -Q
C-mouse-3 does nothing but "<C-mouse-3> is undefined" is shown in the
echo area.
C-h k C-mouse-3 DOES show the usual/right screen.

When i disable "Ctrl Highlighting" both do the right thing.
Sorry your patch does not work.

Stephan
-- 
Stephan Stahl

Re: Popup problems with GTK

[Jan D.]

> This is very strange..
>
> emacs -Q
> C-mouse-3 does nothing but "<C-mouse-3> is undefined" is shown in the
> echo area.
> C-h k C-mouse-3 DOES show the usual/right screen.
>
> When i disable "Ctrl Highlighting" both do the right thing.
> Sorry your patch does not work.

My patch only makes Emacs not hang.  Emacs can not make it "work" 
without modifying either GTK or Gnome.  The Ctrl highlightning is 
simply badly done.

Normally the menu is popped up with C-mouse-3-down and then popped down 
on C-mouse-3 (which is actually never seen as a lisp event since the 
menu grabs the mouse).  But now C-mouse-3-down popps it up, we see that 
it does in fact does not pupup and forget the whole thing.  Then 
C-mouse-3 comes adn Emacs does nothing.  If you wan't to use the Ctrl 
highlights pointer option you can bind C-mouse-3 to ignore.

	Jan D.

Re: Popup problems with GTK

[Stephan Stahl]

Hi Jan.

Jan D. said:
> My patch only makes Emacs not hang.  Emacs can not make it "work"
> without modifying either GTK or Gnome.  The Ctrl highlightning is
> simply badly done.

Ok, then i simply misunderstood you other mail.

Thanks for you help.
Stephan
-- 
Stephan Stahl