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[Guillaume M-M <1430059@xxxxxxxxxxxxxxxxxx>]

Dear bug tracker,

Here's what I understand, in case anybody wants to take over. LyX
normally receives about_to_show() via entry_activate() in indicator-
appmenu/src/window-menu-dbusmenu.c, which itself is called from
panel_service_show_entry_common() via
indicator_object_entry_activate_window() in unity/service/panel-
service.c.

This was broken because appmenu->default_app was left to NULL in the
location of the patch above (which the patch corrects). I wanted to see
whether with this understanding I could solve the small delay I
mentioned above but this issue looks more fundamental.

See also  <https://bugs.launchpad.net/ubuntu/+source/vlc/+bug/1447224>.
As mentioned by someone else, the patch solves the issue with vlc. I did
not have the time to locate the source of the problem with totem. With
totem, unity correctly calls indicator_object_entry_activate_window() in
panel_service_show_entry_common(), but this does not translate into a
call to entry_activate() (which might be a problem if totem expects
about_to_show()).

The patch correctly reverts to the previous behaviour on my side, so
I'll leave it there.

Best,
Guillaume

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https://bugs.launchpad.net/bugs/1430059

Title:
  LyX menu is not updated by indicator-appmenu in mode unity-all-menus

Status in indicator-appmenu package in Ubuntu:
  Confirmed
Status in lyx package in Ubuntu:
  Confirmed

Bug description:
  Options greyed out:
  - File menu: "Close" through "Version control", plus "Export" and "Print"
  - Edit menu: all options
  - View menu: all but "Messages pane", "Toolbars" and "Fullscreen"
  - Insert menu: all options
  - Navigate menu: all options
  - Document menu: all options
  - Tools menu:  "Spellchecker" and "Statistics"

  Description:	Ubuntu Vivid Vervet (development branch)
  Release:	15.04

  lyx:
    Installed: 2.1.3-1
    Candidate: 2.1.3-1
    Version table:
   *** 2.1.3-1 0
          500 http://br.archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: lyx 2.1.3-1
  ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0
  Uname: Linux 3.19.0-7-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.16.2-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Mar  9 19:45:01 2015
  ExecutablePath: /usr/bin/lyx
  InstallationDate: Installed on 2015-02-03 (33 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: lyx
  UpgradeStatus: Upgraded to vivid on 2015-03-05 (3 days ago)

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