[winswitch] problem getting application data from DE

[Antoine Martin]

On 22/10/2022 00:15, Eric Levy via shifter-users wrote:
> Hello.
> 
> I have provisioned Xpra on a host with EndeavorOS, based on Arch Linux,
> and attempted to open a basic connection from a client, through SSH.
> 
> The server version is v4.3.3-r0, which is th version currently provided
> by the Arch "community" repository. The client has version 4.4.1-r35,
> from the project repository for Ubuntu.
> 
> Unfortunately, once the connection is established, the application menu
> is never populated with installed desktop applications. Instead, the
> entry, named "Start", from the menu provided by the Xpra tray icon,
> remains disabled.
> 
> The server log (/run/user/<uid>/xpra/<n>/server.log) offers some
> information, as seen in the following except:
> 
> watching for applications menu changes in:
>   '/usr/share/applications'
> Error parsing xdg menu data:
>   ParsingError in file '/etc/xdg/menus/kde-applications.menu', File not
> found
>   this is either a bug in python-xdg,
>   or an invalid system menu configuration
 From now on, this error message will include a link to the ticket:
https://github.com/Xpra-org/xpra/issues/2174

TLDR: your OS fails to set the environment variables needed for xpra to
be able to load desktop menus using the xdg library.

Please use the issue tracker for such problems - or in this case, 
perhaps bug your distribution instead.

Cheers,
Antoine
> 
> KDE is not installed on the system. The only desktop environment ever
> installed is XFCE.
> 
> I have connected from the same client to hosts with similar
> provisioning without such problems.
> 
> For the record, the system package "python-xdg", named in the log
> message, originally was not installed on the server. However, the
> message remains even after I installed it manually.
> 
> The most important matter of course is how to prevent Xpra from relying
> on a desktop environment different from the only one available.
> 
> I am also wondering, however, if an Xpra session is bound to a
> particular desktop environment, then in cases in which a server has
> multiple environments installed, how may the user creating a connection
> from the client select the one that is personally preferred over the
> others?
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