Hi all,

Thanks to Jim Charlton for the nice fix (or workaround) on the context menu problem! I've had a MacOS menu problem for some time which may be related to this, but as it's a bit off-topic re: the context menu thread I've started a new thread here.

My MacOS gtk3 menus have no borders whatsoever, a rather annoying graphics glitch. This includes menus built-in to gtk3 widgets (e.g., made from gtk_combo_box_text_new()) as well as those made directly by me via gtk_menu_new(). The same menus look fine under CentOS.

I'm using a perhaps unusual gtk3 setup under MacOS (although it does seem like many folks' MacOS gtk3 installs are unique). I am running the XQuartz backend with a very minimal gnome environment. I set XDG_CONFIG_HOME to reference my own private settings.ini file with the contents

gtk-application-prefer-dark-theme = false
gtk-theme-name = Adwaita
gtk-icon-theme-name = Adwaita
gtk-font-name = Cantarell 12

This at least solved a recent font problem of mine (see the Feb. 2015 'gtk3 (GtkTextView) and MacOS' thread), so it seems to be doing something useful, and my shadowless menu issue pre-dates use of this file so it's not the source of the current problem. However, I'm not sure how to make any use of Jim's shadow-removing workaround to *add* shadows to my menus, since:

(1) It seems that shadowed menus are supposed to be default bahavior, but I'm not getting shadows despite having done nothing to disable them.

(2) My /opt/local/share/themes/Adwaita/gtk-3.0/gtk.css contains only the comment line

/* Adwaita is the default theme of GTK+ 3, this file is not used */

implying there's nothing I can add there that will make the slightest bit of difference anyway.

Of course, probably I should just be grateful that I don't suffer from the MacOS context menu sensitivity problem and leave well enough alone!

Does anyone have any ideas? Thanks!

Roger Davis
Univ. of Hawaii

From: Jim Charlton <char...@gmail.com>
To: gtk-app-devel-list@gnome.org
Subject: Re: Fwd: Gtk3 MacOS (OSX) context menu issues

To answer part of my own question.... I am using my own gtk3 theme
rather than the compiled Adwaita theme that comes with Gtk3.  I set the
environment variable XDG_CONFIG_HOME (export
XDG_CONFIG_HOME=/opt/local/share/themes/Adwaita/gtk-3.0), edited
/opt/local/share/themes/Adwaita/gtk-3.0/gtk.css to "@import
url("gtk-main.css");" and then edit
/opt/local/share/themes/Adwaita/gtk-3.0/gtk-main.css to customize the
theme. (careful... your theme directory may be elsewhere, depending on
how you installed Gtk3).

To cure the context menu problem, I eliminated the margin on popup
windows by adding

.window-frame:backdrop {
  box-shadow: none;
  margin: 0;}

to the end of the gtk.css file. Without the margin box the selection problem seems to go away.

This is not a cure... but perhaps a useful work-around! The inspiration for this idea comes from https://forum.xfce.org/viewtopic.php?pid=36005.

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