[LightDM] manual-login and user preferred locale

[Jerzy Borkowski]

Hi,

When I select username from user list (in gtk-greeter),
this also updates preselected session/locale in session/locale_menu.
This is very useful, when user's preferred locale/session
stored in ~/.dmrc or accountservice is not the same
as system default.

However, in manual-login mode, locale in locale_menu
is preset to system default (likely en_US.utf8).
This effectively ignores user's ~/.dmrcand/or accountsservice
settings. A user with ~/.dmrc :

[Desktop]
Language=fr_FR.utf8

has to select fr_FR locale each time he logs in
in manual-login mode.  Otherwise, the language
is reset to system default.

I think the locale_menu should contain additional
item: "Last used", and it should be preselected.

My setup is : lightdm-1.12.2 on gentoo 64bit.

[SeatDefaults]
greeter-hide-users=false
greeter-show-manual-login=true
allow-guest=false

Regards,
---
Jurek