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{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.i18n.inputMethod.ibus;
ibusPackage = pkgs.ibus-with-plugins.override { plugins = cfg.engines; };
ibusEngine = types.package // {
name = "ibus-engine";
check = x: (lib.types.package.check x) && (attrByPath ["meta" "isIbusEngine"] false x);
};
in
{
options = {
i18n.inputMethod.ibus = {
enable = mkOption {
type = types.bool;
default = false;
example = true;
description = ''
Enable IBus input method.
IBus can be used input of Chinese, Korean, Japanese and other special characters.
'';
};
engines = mkOption {
type = with types; listOf ibusEngine;
default = [];
example = literalExample "with pkgs.ibus-engines; [ mozc hangul ]";
description = ''
Enabled IBus engines.
Available engines can be found by running `nix-env "<nixpkgs>" . -qaP -A ibus-engines`.
'';
};
};
};
config = mkIf cfg.enable {
# Without dconf enabled it is impossible to use IBus
environment.systemPackages = [ ibusPackage pkgs.gnome3.dconf ];
gtkPlugins = [ pkgs.ibus ];
qtPlugins = [ pkgs.ibus-qt ];
environment.variables = {
GTK_IM_MODULE = "ibus";
QT_IM_MODULE = "ibus";
XMODIFIERS = "@im=ibus";
};
services.xserver.displayManager.sessionCommands = "${ibusPackage}/bin/ibus-daemon --daemonize --xim --cache=none";
};
}
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