ORG.FREEDESKTOP.LOCALE1(5) org.freedesktop.locale1 ORG.FREEDESKTOP.LOCALE1(5)
NAME
org.freedesktop.locale1 - The D-Bus interface of systemd-localed
INTRODUCTION
systemd-localed.service(8) is a system service that can be used to control the system
locale and keyboard mapping from user programs. This page describes the D-Bus interface.
THE D-BUS API
The service exposes the following interfaces on the bus:
node /org/freedesktop/locale1 {
interface org.freedesktop.locale1 {
methods:
SetLocale(in as locale,
in b interactive);
SetVConsoleKeyboard(in s keymap,
in s keymap_toggle,
in b convert,
in b interactive);
SetX11Keyboard(in s layout,
in s model,
in s variant,
in s options,
in b convert,
in b interactive);
properties:
readonly as Locale = ['...', ...];
readonly s X11Layout = '...';
readonly s X11Model = '...';
readonly s X11Variant = '...';
readonly s X11Options = '...';
readonly s VConsoleKeymap = '...';
readonly s VConsoleKeymapToggle = '...';
};
interface org.freedesktop.DBus.Peer { ... };
interface org.freedesktop.DBus.Introspectable { ... };
interface org.freedesktop.DBus.Properties { ... };
};
Methods
If you set a new system locale all old system locale settings will be dropped and the new
settings will be saved to disk. The locale will also be passed to the system manager, and
subsequently started daemons will inherit the new system locale. Note that already running
daemons will not learn about the new value.
The SetVConsoleKeyboard() method may be used to set the key mapping for the virtual
console. Similarly, SetX11Keyboard() may be used to set the default key mapping of any X11
servers.
Note that SetVConsoleKeyboard() instantly applies the new key mapping to the console,
while SetX11Keyboard() simply sets a default that may be used by later sessions.
The boolean argument convert may be set to optionally convert the console keyboard
configuration to X11 keyboard mappings and vice versa. If true and SetVConsoleKeyboard()
is used, the nearest X11 keyboard setting for the chosen console setting is set. If true
and SetX11Keyboard() is used, the nearest console keyboard setting for the chosen X11
setting is set. Hence, it is usually sufficient to call only one of the two functions.
For graphical UIs that need to set the system keyboard mapping simply invoke
SetX11Keyboard(), set convert=true and ignore SetVConsoleKeyboard().
Use the empty string for the keymap parameters you wish not to set.
The interactive boolean parameters can be used to control whether polkit[1] should
interactively ask the user for authentication credentials if required.
Signals
Whenever the system locale or keymap is changed via the daemon, PropertyChanged signals
are sent out to which clients can subscribe.
Properties
The system locale is shown in the Locale property. It is an array containing
environment-variable-assignment-like strings. The following strings are known: LANG=,
LC_CTYPE=, LC_NUMERIC=, LC_TIME=, LC_COLLATE=, LC_MONETARY=, LC_MESSAGES=, LC_PAPER=,
LC_NAME=, LC_ADDRESS=, LC_TELEPHONE=, LC_MEASUREMENT=, LC_IDENTIFICATION=.
The X11Layout, X11Model, X11Variant, and X11Options properties show values configurable
with SetX11Keyboard() described above (or SetVConsoleKeyboard() with convert=true). The
VConsoleKeymap and VConsoleKeymapToggle properties show values configurable with
SetVConsoleKeyboard() (or SetX11Keyboard() with convert=true).
Security
Changing the system locale or keymap using this interface is authenticated via polkit. The
polkit action for SetLocale() is org.freedesktop.locale1.set-locale. The polkit action for
SetX11Keyboard() and SetVConsoleKeyboard() is org.freedesktop.locale1.set-keyboard.
EXAMPLES
Example 1. Introspect org.freedesktop.locale1 on the bus
$ gdbus introspect --system \
--dest org.freedesktop.locale1 \
--object-path /org/freedesktop/locale1
VERSIONING
These D-Bus interfaces follow the usual interface versioning guidelines[2].
NOTES
1. polkit
https://www.freedesktop.org/software/polkit/docs/latest/
2. the usual interface versioning guidelines
http://0pointer.de/blog/projects/versioning-dbus.html
systemd 249 ORG.FREEDESKTOP.LOCALE1(5)
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