i18n.inputMethod: add module

modules/i18n/input-method/default.nix

@@ -0,0 +1,102 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+let
+
+  cfg = config.i18n.inputMethod;
+
+  gtk2Cache = pkgs.runCommandLocal "gtk2-immodule.cache" {
+    buildInputs = [ pkgs.gtk2 cfg.package ];
+  } ''
+    mkdir -p $out/etc/gtk-2.0/
+    GTK_PATH=${cfg.package}/lib/gtk-2.0/ \
+      gtk-query-immodules-2.0 > $out/etc/gtk-2.0/immodules.cache
+  '';
+
+  gtk3Cache = pkgs.runCommandLocal "gtk3-immodule.cache" {
+    buildInputs = [ pkgs.gtk3 cfg.package ];
+  } ''
+    mkdir -p $out/etc/gtk-3.0/
+    GTK_PATH=${cfg.package}/lib/gtk-3.0/ \
+      gtk-query-immodules-3.0 > $out/etc/gtk-3.0/immodules.cache
+  '';
+
+in {
+  imports =
+    [ ./fcitx.nix ./fcitx5.nix ./hime.nix ./kime.nix ./nabi.nix ./uim.nix ];
+
+  options.i18n = {
+    inputMethod = {
+      enabled = mkOption {
+        type = types.nullOr
+          (types.enum [ "fcitx" "fcitx5" "nabi" "uim" "hime" "kime" ]);
+        default = null;
+        example = "fcitx";
+        description = ''
+          Select the enabled input method. Input methods is a software to input
+          symbols that are not available on standard input devices.
+          </para><para>
+          Input methods are specially used to input Chinese, Japanese and Korean
+          characters.
+          </para><para>
+          Currently the following input methods are available in Home Manager:
+
+          <variablelist>
+          <varlistentry>
+            <term><literal>fcitx</literal></term>
+            <listitem><para>
+              A customizable lightweight input method
+              extra input engines can be added using
+              <literal>i18n.inputMethod.fcitx.engines</literal>.
+            </para></listitem>
+          </varlistentry>
+          <varlistentry>
+            <term><literal>fcitx5</literal></term>
+            <listitem><para>
+              The next generation of fcitx,
+              addons (including engines, dictionaries, skins) can be added using
+              <literal>i18n.inputMethod.fcitx5.addons</literal>.
+            </para></listitem>
+          </varlistentry>
+          <varlistentry>
+            <term><literal>nabi</literal></term>
+            <listitem><para>
+              A Korean input method based on XIM. Nabi doesn't support Qt 5.
+            </para></listitem>
+          </varlistentry>
+          <varlistentry>
+            <term><literal>uim</literal></term>
+            <listitem><para>
+              The universal input method, is a library with a XIM bridge.
+              uim mainly support Chinese, Japanese and Korean.
+            </para></listitem>
+          </varlistentry>
+          <varlistentry>
+            <term><literal>hime</literal></term>
+            <listitem><para>An extremely easy-to-use input method framework.</para></listitem>
+          </varlistentry>
+          <varlistentry>
+            <term><literal>kime</literal></term>
+            <listitem><para>A Korean IME.</para></listitem>
+          </varlistentry>
+          </variablelist>
+        '';
+      };
+
+      package = mkOption {
+        internal = true;
+        type = types.nullOr types.path;
+        default = null;
+        description = ''
+          The input method method package.
+        '';
+      };
+    };
+  };
+
+  config = mkIf (cfg.enabled != null) {
+    home.packages = [ cfg.package gtk2Cache gtk3Cache ];
+  };
+
+  meta.maintainers = with lib; [ hm.maintainers.kranzes ];
+}