bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[Carlos Pita]

This happens at least in the popular i3 window manager and was
reported to their tracker [1]. Please read that report, there are lots
of details there, including xprop and xwininfo outputs for the
tooltips.

The weird thing is that emacs gtk tooltips haven't any tooltip related
property set. I'm not sure whether this is because of the way I've
called xprop and xwininfo on them (again, details in [1]) or what, but
the problem is that the window manager is trying to manage them since it
can't indentify them as tooltips and, so, they're not themed as the gtk
theme specifies for tooltips.

---

[1] https://github.com/i3/i3/issues/3334

---

In GNU Emacs 26.1.50 (build 4, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2018-07-24 built on archlinux
Repository revision: f64c2774e96c755a5fddcbc49db65dcc3fcb9323
Windowing system distributor 'The X.Org Foundation', version 11.0.12000000
Recent messages:
Saving file /home/carlos/.config/polybar/config...
Wrote /home/carlos/.config/polybar/config
Saving file /home/carlos/.config/polybar/config...
Wrote /home/carlos/.config/polybar/config
Saving file /home/carlos/.config/polybar/config...
Wrote /home/carlos/.config/polybar/config
Saving file /home/carlos/.config/polybar/config...
Wrote /home/carlos/.config/polybar/config
Saving file /home/carlos/.config/polybar/config...
Wrote /home/carlos/.config/polybar/config

Configured using:
 'configure --prefix=/home/carlos/local/stow/emacs-26
 --libexecdir=/home/carlos/local/stow/emacs-26/lib --with-x-toolkit=gtk3
 --with-xft --with-modules'

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GSETTINGS NOTIFY ACL GNUTLS
LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11
MODULES THREADS LIBSYSTEMD LCMS2

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Conf[Unix]

Minor modes in effect:
  global-magit-file-mode: t
  magit-file-mode: t
  magit-auto-revert-mode: t
  auto-revert-mode: t
  global-git-commit-mode: t
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  pdf-occur-global-minor-mode: t
  diff-auto-refine-mode: t
  pyvenv-mode: t
  shell-dirtrack-mode: t
  xclip-mode: t
  winner-mode: t
  show-paren-mode: t
  ido-ubiquitous-mode: t
  ido-everywhere: t
  global-company-mode: t
  company-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
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Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug sendmail conf-mode misearch
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magit-merge magit-branch magit-reset magit-collab ghub-graphql ghub
url-http tls gnutls url-gw nsm url-auth url url-proxy url-privacy
url-expand url-methods url-history url-cookie url-domsuf url-util
mailcap magit-files magit-refs magit-status magit magit-repos
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magit-core magit-autorevert autorevert filenotify magit-process
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bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[martin rudalics]

 > The weird thing is that emacs gtk tooltips haven't any tooltip related
 > property set. I'm not sure whether this is because of the way I've
 > called xprop and xwininfo on them (again, details in [1]) or what, but
 > the problem is that the window manager is trying to manage them since it
 > can't indentify them as tooltips and, so, they're not themed as the gtk
 > theme specifies for tooltips.

In xg_prepare_tooltip after

   gwin = gtk_widget_get_window (GTK_WIDGET (x->ttip_window));

insert the line

   gdk_window_set_override_redirect (gwin, TRUE);

but I doubt this would help much making GTK tooltips look as wanted
by a specific theme.

martin

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[Carlos Pita]

I think your suggestion is on the right track but I have added that
line and recompiled and still xwininfo reports `Override Redirect
State: no`.

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[Carlos Pita]

I also tried adding (override-redirect . t) to
tooltip-frame-parameters but to no avail. I assume these parameters
are only for non system tooltips.

On Mon, Jul 30, 2018 at 7:53 PM, Carlos Pita <carlosjosepita@gmail.com> wrote:
> I think your suggestion is on the right track but I have added that
> line and recompiled and still xwininfo reports `Override Redirect
> State: no`.

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[martin rudalics]

 > I also tried adding (override-redirect . t) to
 > tooltip-frame-parameters but to no avail. I assume these parameters
 > are only for non system tooltips.

Right.  Does the 'override-redirect' parameter work for normal,
non-tooltip frames on your system?  Does xwininfo report it as
"override-redirect"?

martin

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[Carlos Pita]

This is what xwininfo reports for a tooltip in firefox:



xwininfo: Window id: 0x1c00898 (has no name)

  Root window id: 0xf5 (the root window) "i3"
  Parent window id: 0x1c00897 "Firefox"
     0 children.

  Absolute upper-left X:  894
  Absolute upper-left Y:  1305
  Relative upper-left X:  -1
  Relative upper-left Y:  -1
  Width: 1
  Height: 1
  Depth: 0
  Visual: 0xeb
  Visual Class: TrueColor
  Border width: 0
  Class: InputOnly
  Colormap: 0x0 (not installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsUnviewable
  Override Redirect State: no
  Corners:  +894+1305  -1025+1305  -1025-542  +894-542
  -geometry 1x1+895+1306

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      KeyPress
      KeyRelease
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined



It's not override redirected but still is different from the report
for the tooltip in emacs:



xwininfo: Window id: 0x8001ad (has no name)

  Absolute upper-left X:  953
  Absolute upper-left Y:  403
  Relative upper-left X:  -1
  Relative upper-left Y:  -1
  Width: 1
  Height: 1
  Depth: 0
  Visual: 0xbf
  Visual Class: TrueColor
  Border width: 0
  Class: InputOnly
  Colormap: 0x0 (not installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +953+403  -412+403  -412-364  +953-364
  -geometry 1x1-33+404

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[Carlos Pita]

Sorry, this one is for emacs (the one in my previous email was copied
from the i3 report but it seems that something changed since then),
now it doesn't look very different to me:

xwininfo: Window id: 0x1600165 (has no name)

  Root window id: 0xf5 (the root window) "i3"
  Parent window id: 0x1600164 (has no name)
     0 children.

  Absolute upper-left X:  905
  Absolute upper-left Y:  1699
  Relative upper-left X:  -1
  Relative upper-left Y:  -1
  Width: 1
  Height: 1
  Depth: 0
  Visual: 0xc0
  Visual Class: TrueColor
  Border width: 0
  Class: InputOnly
  Colormap: 0x0 (not installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +905+1699  -1014+1699  -1014-148  +905-148
  -geometry 1x1+906-69

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      KeyPress
      KeyRelease
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

bug#32298: 26.1.50; Emacs gtk system tooltips are not shown as tooltips

[martin rudalics]

 > Sorry, this one is for emacs (the one in my previous email was copied
 > from the i3 report but it seems that something changed since then),
 > now it doesn't look very different to me:

IIUC in both cases xwindow reports nothing tooltip specific for these
tooltip windows.  So I wonder how a tooltip specific theme background
could be applied to them.  Would xprop reveal anything useful in this
regard?

In either case, for i3's sake we should be able to make our tooltips
override-redirect windows and apparently the request to do that gets
lost somewhere.

martin