bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[nverno]

Calling `x-hide-tip` always returns nil (it is documented to
return t when the tooltip is active). I noticed this after
recently compiling with gtk3. I was using `x-hide-tip` in
a toggling function that stopped toggling. As an example
of what currently doesn't work:

(defun toggle-tip ()
    (interactive)
    (or (x-hide-tip)
      (pos-tip-show "hi")))


In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
of 2016-11-07 built on nverno-M51AC
Windowing system distributor 'The X.Org Foundation', version 11.0.11803000
System Description: Ubuntu 16.04.1 LTS

Configured using:
'configure --with-x-toolkit=gtk3 --with-modules --with-xwidgets'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES XWIDGETS

Important settings:
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8

Major mode: C/l

Minor modes in effect:
ede-minor-mode: t
global-semanticdb-minor-mode: t
global-semantic-idle-scheduler-mode: t
global-semantic-idle-summary-mode: t
semantic-idle-summary-mode: t
semantic-idle-scheduler-mode: t
semantic-stickyfunc-mode: t
global-semantic-stickyfunc-mode: t
semantic-mode: t
irony-mode: t
recentf-mode: t
shell-dirtrack-mode: t
diff-auto-refine-mode: t
linum-mode: t
ido-vertical-mode: t
ido-everywhere: t
company-statistics-mode: t
company-quickhelp-mode: t
global-company-mode: t
company-mode: t
yas-minor-mode: t
smartparens-global-mode: t
smartparens-mode: t
smooth-scrolling-mode: t
global-subword-mode: t
subword-mode: t
global-auto-revert-mode: t
winner-mode: t
delete-selection-mode: t
show-paren-mode: t
save-place-mode: t
savehist-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
global-prettify-symbols-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
abbrev-mode: t

Recent messages:
user-error: At end of buffer
nil [2 times]
Parsing xfns.c (LL)...done
Idle Service Error semantic-idle-summary-idle-function: "#<buffer 
xfns.c> - Wrong type argument: stringp, (((0) \"EMACS_INT\"))" [2 times]
Quit [3 times]
nil [4 times]
Saving file /home/nverno/.emacs.d/site-lisp/elisp-utils/el-pophelp.el...
Wrote /home/nverno/.emacs.d/site-lisp/elisp-utils/el-pophelp.el
Wrote /home/nverno/.emacs.d/site-lisp/elisp-utils/el-pophelp.elc
Wrote /home/nverno/.emacs.d/site-lisp/elisp-utils/el-pophelp.{el,elc}
Quit [2 times]

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Features:
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mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
sendmail rfc2047 rfc2045 ietf-drums mail-utils nvp-code-and-comments
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make-it-so make-mode nvp-dired dired-x semantic/edit company-irony
semantic/ia semantic/senator semantic/db-typecache macrostep-c cmacexp
macrostep pp ede/locate ede/emacs ede/speedbar ede/files ede ede/detect
ede/base ede/auto ede/source eieio-speedbar eieio-custom nvp-cedet
warnings nvp-local nvp-install nvp-macros semantic/tag-file nvp-c++
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hideif semantic/bovine/c-by semantic/lex-spp semantic/bovine/gcc
semantic/dep semantic/bovine semantic/analyze/refs semantic/db-find
semantic/db-ref semantic/analyze semantic/sort semantic/scope
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nvp-compilation compile hippie-expand-auto hippie-exp eieio-opt speedbar
sb-image ezimage dframe nvp-help config-utils ace-window diary-lib
diary-loaddefs cal-iso solar cal-dst cal-move parse-time executable
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mail-prsvr password-cache tramp-loaddefs trampver ucs-normalize ob-core
ob-eval org-compat org-macs org-loaddefs format-spec cal-menu calendar
cal-loaddefs recentf tree-widget company-shell subr-x nvp nvp-shell
bash-completion shell-tools expand shell pcomplete comint ansi-color
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auto-compile packed highlight-quoted nvp-emacs-lisp cl-lib-highlight
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nvp-mode-hooks ido-vertical-mode flx-ido flx ido-ubiquitous
ido-completing-read+ cus-edit cus-start cus-load wid-edit avy smex ido
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xref project eieio eieio-core company-gtags company-template
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smartparens-config smartparens thingatpt dash hydra lv diminish
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gruvbox-theme cl-macs smooth-scrolling two-column server cap-words
superword subword autorevert filenotify winner ring delsel paren
saveplace savehist finder-inf info package epg-config seq byte-opt gv
bytecomp byte-compile cl-extra help-mode easymenu cconv cl-loaddefs
pcase cl-lib advice time-date mule-util tooltip eldoc electric uniquify
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bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[martin rudalics]

 > Calling `x-hide-tip` always returns nil (it is documented to
 > return t when the tooltip is active). I noticed this after
 > recently compiling with gtk3. I was using `x-hide-tip` in
 > a toggling function that stopped toggling. As an example
 > of what currently doesn't work:
 >
 > (defun toggle-tip ()
 >     (interactive)
 >     (or (x-hide-tip)
 >       (pos-tip-show "hi")))
 >
 >
 > In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
 > of 2016-11-07 built on nverno-M51AC
 > Windowing system distributor 'The X.Org Foundation', version 11.0.11803000
 > System Description: Ubuntu 16.04.1 LTS
 >
 > Configured using:
 > 'configure --with-x-toolkit=gtk3 --with-modules --with-xwidgets'

Thanks for the report.  I think that before investigating this further
we need another recipe.  Yours is based on ‘pos-tip-show’ which is not
part of Emacs.  Does ‘pos-tip-show’ use GTK+ tooltips or the native
Emacs ones - what is your value of ‘x-gtk-use-system-tooltips’?

Then we would have to decide how to retrieve a non-nil return value for
‘x-hide-tip’ in the first place.  Here the tooltip disappears
immediately when I type anything, so the return value is always nil by
force, presumably.  We'd probably need a timer to test your function.

Finally, we would have to check the results for the function you get
this way for both ‘x-gtk-use-system-tooltips’ nil/t settings and for at
least one other toolkit.

Can you please try doing all that?

Thanks again, martin

bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[Eli Zaretskii]

> Date: Tue, 08 Nov 2016 08:23:08 +0100
> From: martin rudalics <rudalics@gmx.at>
> 
> Thanks for the report.  I think that before investigating this further
> we need another recipe.  Yours is based on ‘pos-tip-show’ which is not
> part of Emacs.  Does ‘pos-tip-show’ use GTK+ tooltips or the native
> Emacs ones - what is your value of ‘x-gtk-use-system-tooltips’?
> 
> Then we would have to decide how to retrieve a non-nil return value for
> ‘x-hide-tip’ in the first place.  Here the tooltip disappears
> immediately when I type anything, so the return value is always nil by
> force, presumably.  We'd probably need a timer to test your function.
> 
> Finally, we would have to check the results for the function you get
> this way for both ‘x-gtk-use-system-tooltips’ nil/t settings and for at
> least one other toolkit.
> 
> Can you please try doing all that?

Martin, did you try this on master or on the emacs-25 branch?  I think
there's an omission in the Emacs 25.1 code, which the OP is running,
that is already fixed on master.  For emacs-25, the following patch
should at least bring you closer to the solution, if not be the
solution:

diff --git a/src/xfns.c b/src/xfns.c
index 7c1bb1c..a6d8980 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -6120,7 +6120,10 @@ Value is t if tooltip was open, nil otherwise.  */)
        the tip is shown.  */
     struct frame *f = XFRAME (frame);
     if (FRAME_LIVE_P (f) && xg_hide_tooltip (f))
-      frame = Qnil;
+      {
+	frame = Qnil;
+	deleted = Qt;
+      }
   }
 #endif
 

bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[martin rudalics]

 > Martin, did you try this on master or on the emacs-25 branch?

On master.  The OP's build time was more recent than mine ;-)

 > I think
 > there's an omission in the Emacs 25.1 code, which the OP is running,
 > that is already fixed on master.  For emacs-25, the following patch
 > should at least bring you closer to the solution,

Emacs-25?  This bug is more than six years old.

 > if not be the
 > solution:

It fixes the problem here.  nverno, can you please test whether it fixes
the problem for you too?  Then Eli will decide whether we can apply the
fix to Emacs 25.  If we can't, you'll have to check this out on master.

Thanks, martin

bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[Eli Zaretskii]

> Date: Tue, 08 Nov 2016 17:41:19 +0100
> From: martin rudalics <rudalics@gmx.at>
> CC: noah.v.peart@gmail.com, 24899@debbugs.gnu.org
> 
>  > Martin, did you try this on master or on the emacs-25 branch?
> 
> On master.  The OP's build time was more recent than mine ;-)
> 
>  > I think
>  > there's an omission in the Emacs 25.1 code, which the OP is running,
>  > that is already fixed on master.  For emacs-25, the following patch
>  > should at least bring you closer to the solution,
> 
> Emacs-25?  This bug is more than six years old.

I meant the branch, not the release.  I'm not sure we should fix it in
25.2, given the age of the bug.

Thanks.

bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[Noah Peart]

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I will try to give it a shot shortly and report back.  My value of
'x-gtk-use-system-tooltips’
was 't'.  Sorry I had focused on 'x-hide-tip' and forget 'pos-tip' wasn't
part of emacs.

Thanks!

On Tue, Nov 8, 2016 at 11:47 AM, Eli Zaretskii <eliz@gnu.org> wrote:

> > Date: Tue, 08 Nov 2016 17:41:19 +0100
> > From: martin rudalics <rudalics@gmx.at>
> > CC: noah.v.peart@gmail.com, 24899@debbugs.gnu.org
> >
> >  > Martin, did you try this on master or on the emacs-25 branch?
> >
> > On master.  The OP's build time was more recent than mine ;-)
> >
> >  > I think
> >  > there's an omission in the Emacs 25.1 code, which the OP is running,
> >  > that is already fixed on master.  For emacs-25, the following patch
> >  > should at least bring you closer to the solution,
> >
> > Emacs-25?  This bug is more than six years old.
>
> I meant the branch, not the release.  I'm not sure we should fix it in
> 25.2, given the age of the bug.
>
> Thanks.
>

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bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[Noah Peart]

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I can confirm that Eli's patch fixed the above problem on my end.
`x-hide-tip` now returns true when there is a tooltip active.

Thanks all

On Tue, Nov 8, 2016 at 1:33 PM, Noah Peart <noah.v.peart@gmail.com> wrote:

> I will try to give it a shot shortly and report back.  My value of
> 'x-gtk-use-system-tooltips’
> was 't'.  Sorry I had focused on 'x-hide-tip' and forget 'pos-tip' wasn't
> part of emacs.
>
> Thanks!
>
> On Tue, Nov 8, 2016 at 11:47 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>
>> > Date: Tue, 08 Nov 2016 17:41:19 +0100
>> > From: martin rudalics <rudalics@gmx.at>
>> > CC: noah.v.peart@gmail.com, 24899@debbugs.gnu.org
>> >
>> >  > Martin, did you try this on master or on the emacs-25 branch?
>> >
>> > On master.  The OP's build time was more recent than mine ;-)
>> >
>> >  > I think
>> >  > there's an omission in the Emacs 25.1 code, which the OP is running,
>> >  > that is already fixed on master.  For emacs-25, the following patch
>> >  > should at least bring you closer to the solution,
>> >
>> > Emacs-25?  This bug is more than six years old.
>>
>> I meant the branch, not the release.  I'm not sure we should fix it in
>> 25.2, given the age of the bug.
>>
>> Thanks.
>>
>
>

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bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[Noah Peart]

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I think there might be another problem with the patch though.  There seems
to be a problem when setting `x-gtk-use-system-tooltips` variable to nil.

I think that `x-show-tip` respects this variable with

`if (x_gtk_use_system_tooltips)`

but `x-hide-tip` does not.  So, the tooltip is created but can't be
destroyed.

Thanks

On Tue, Nov 8, 2016 at 2:13 PM, Noah Peart <noah.v.peart@gmail.com> wrote:

> I can confirm that Eli's patch fixed the above problem on my end.
> `x-hide-tip` now returns true when there is a tooltip active.
>
> Thanks all
>
> On Tue, Nov 8, 2016 at 1:33 PM, Noah Peart <noah.v.peart@gmail.com> wrote:
>
>> I will try to give it a shot shortly and report back.  My value of
>> 'x-gtk-use-system-tooltips’
>> was 't'.  Sorry I had focused on 'x-hide-tip' and forget 'pos-tip' wasn't
>> part of emacs.
>>
>> Thanks!
>>
>> On Tue, Nov 8, 2016 at 11:47 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>>
>>> > Date: Tue, 08 Nov 2016 17:41:19 +0100
>>> > From: martin rudalics <rudalics@gmx.at>
>>> > CC: noah.v.peart@gmail.com, 24899@debbugs.gnu.org
>>> >
>>> >  > Martin, did you try this on master or on the emacs-25 branch?
>>> >
>>> > On master.  The OP's build time was more recent than mine ;-)
>>> >
>>> >  > I think
>>> >  > there's an omission in the Emacs 25.1 code, which the OP is running,
>>> >  > that is already fixed on master.  For emacs-25, the following patch
>>> >  > should at least bring you closer to the solution,
>>> >
>>> > Emacs-25?  This bug is more than six years old.
>>>
>>> I meant the branch, not the release.  I'm not sure we should fix it in
>>> 25.2, given the age of the bug.
>>>
>>> Thanks.
>>>
>>
>>
>

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bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[martin rudalics]

 > I think there might be another problem with the patch though.  There seems
 > to be a problem when setting `x-gtk-use-system-tooltips` variable to nil.
 >
 > I think that `x-show-tip` respects this variable with
 >
 > `if (x_gtk_use_system_tooltips)`
 >
 > but `x-hide-tip` does not.  So, the tooltip is created but can't be
 > destroyed.

The patch wouldn't change anything in this regard.  The tooltip will be
destroyed as with any other toolkit.  On Emacs-26 you can alternatively
hide it via ‘tooltip-reuse-hidden-frame’.

martin

bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[Noah Peart]

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Ah, yes, I had left in the first `frame = Qnil;`.  Oops!  Sorry for the
noise.
Thanks

On Wed, Nov 9, 2016 at 2:00 AM, martin rudalics <rudalics@gmx.at> wrote:

> > I think there might be another problem with the patch though.  There
> seems
> > to be a problem when setting `x-gtk-use-system-tooltips` variable to nil.
> >
> > I think that `x-show-tip` respects this variable with
> >
> > `if (x_gtk_use_system_tooltips)`
> >
> > but `x-hide-tip` does not.  So, the tooltip is created but can't be
> > destroyed.
>
> The patch wouldn't change anything in this regard.  The tooltip will be
> destroyed as with any other toolkit.  On Emacs-26 you can alternatively
> hide it via ‘tooltip-reuse-hidden-frame’.
>
> martin
>
>

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bug#24899: 25.1; x-hide-tip always returns nil with USE_GTK

[martin rudalics]

 > Calling `x-hide-tip` always returns nil (it is documented to
 > return t when the tooltip is active). I noticed this after
 > recently compiling with gtk3. I was using `x-hide-tip` in
 > a toggling function that stopped toggling. As an example
 > of what currently doesn't work:
 >
 > (defun toggle-tip ()
 >     (interactive)
 >     (or (x-hide-tip)
 >       (pos-tip-show "hi")))

This should work with Emacs 26 so I'm closing this bug.

Thanks, martin