[Bug 1604009] [NEW] Empty menus in global app-menu in VirtualBox second window

[Michael Thayer]

Public bug reported:

Reporting this following this IRC discussion:

https://irclogs.ubuntu.com/2016/07/15/%23ubuntu-devel.html#t14:00

The basic summary: when I run a two-screen/two-window virtual machine
with VirtualBox under Ubuntu 16.04 with Unity and the global app-menu,
the menus are empty when the second screen window has the input focus.
During start-up I get a number (55) of these messages on the console:

Qt WARNING: void
DBusMenuExporterPrivate::fillLayoutItem(DBusMenuLayoutItem*, QMenu*,
int, int, const QStringList&): No id for action

and a number (7) of these:

Qt WARNING: uint DBusMenuExporterDBus::GetLayout(int, int, const
QStringList&, DBusMenuLayoutItem&): Condition failed: menu

Then another 55 of the first and two of the second.

Looking at the interesting parts of the VirtualBox source code, I see
that the menu items for the first window (menu displayed correctly) and
the second (not displayed) share the same QAction objects.  A very quick
guess is that this might be triggering the condition in
DBusMenuExporterPrivate::addMenu().

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libdbusmenu-qt5 0.9.3+16.04.20160218-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jul 18 15:44:00 2016
Dependencies:
 gcc-5-base 5.4.0-6ubuntu1~16.04.1
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu3
 libgcc1 1:6.0.1-0ubuntu1
 libstdc++6 5.4.0-6ubuntu1~16.04.1
InstallationDate: Installed on 2016-05-31 (48 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: libdbusmenu-qt
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: libdbusmenu-qt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1604009

Title:
  Empty menus in global app-menu in VirtualBox second window

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