https://bugs.kde.org/show_bug.cgi?id=424485
Bug ID: 424485
Summary: GDbus-DBusMenu-Proxy does not work for GTK Wayland
apps
Product: plasmashell
Version: 5.19.3
Platform: Debian unstable
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: gmenu-dbusmenu-proxy
Assignee: k...@privat.broulik.de
Reporter: alexander-kde@ninetailed.ninja
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
When running a GTK application using GMenu to export its menus on Wayland,
GDBus-DBbusMenu-Proxy will not detect the menu exported by the application and
hence will not publish an equivalent DBusMenu representation to
com.canonical.AppMenu.Registrar.
STEPS TO REPRODUCE
1. Find any GTK application using `gtk_application_set_menubar(GMenu*)` to set
its default application menu and hence exporting it onto D-Bus
2. Launch the application under Wayland
3. Check that the application publishes `${APP_ID_WITH_SLASHES}/menus/menubar`
on D-Bus with the respective menu items
OBSERVED RESULT
The application's menu will not be detected at all by GDBus-DBbusMenu-Proxy and
hence no Global Menu will be available.
EXPECTED RESULT
GDBus-DBbusMenu-Proxy should detect the menu and publish an equivalent D-Bus
menu representation.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian unstable with KDE Neon user for Ubuntu focal
KDE Plasma Version: 4:5.19.3-0xneon+20.04+focal+build5
KDE Frameworks Version: 5.72.0-0xneon+20.04+focal+build7
Qt Version: 5.14.2+dfsg-0+xneon+20.04+focal+build11
ADDITIONAL INFORMATION
The obvious reason for why it doesn't work is because it only probes X11
attributes. Looking at
https://wiki.gnome.org/Projects/GLib/GApplication/DBusAPI it is also not in any
way obvious to me how auto-discovery of the menu information on Wayland would
work at all?
If there is some way to match the application window with the GtkApplication's
unique D-Bus name it should work, but I'm not sure such a facility exists?
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