From f222abea4465e9fe62c49214c4c238e0d66bca35 Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Tue, 10 Mar 2015 19:26:41 +0100
Subject: [PATCH] Add programs.ibus config option to enable ibus and plugins.

---
 nixos/modules/module-list.nix   |  1 +
 nixos/modules/programs/ibus.nix | 51 +++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 nixos/modules/programs/ibus.nix

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index de86f11c6bb..23809796878 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -60,6 +60,7 @@
   ./programs/dconf.nix
   ./programs/environment.nix
   ./programs/info.nix
+  ./programs/ibus.nix
   ./programs/light.nix
   ./programs/nano.nix
   ./programs/screen.nix
diff --git a/nixos/modules/programs/ibus.nix b/nixos/modules/programs/ibus.nix
new file mode 100644
index 00000000000..c9447878993
--- /dev/null
+++ b/nixos/modules/programs/ibus.nix
@@ -0,0 +1,51 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.ibus;
+in
+{
+  options = {
+
+    programs.ibus = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        example = true;
+        description = "Enable IBus input method";
+      };
+      plugins = mkOption {
+        type = lib.types.listOf lib.types.path;
+        default = [];
+        description = ''
+          IBus plugin packages
+        '';
+      };
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ pkgs.ibus ];
+
+    gtkPlugins = [ pkgs.ibus ];
+    qtPlugins = [ pkgs.ibus ];
+
+    environment.variables =
+      let
+        env = pkgs.buildEnv {
+          name = "ibus-env";
+          paths = [ pkgs.ibus ] ++ cfg.plugins;
+        };
+      in {
+        GTK_IM_MODULE = "ibus";
+        QT_IM_MODULE = "ibus";
+        XMODIFIERS = "@im=ibus";
+
+        IBUS_COMPONENT_PATH = "${env}/share/ibus/component";
+      };
+
+    services.xserver.displayManager.sessionCommands = "${pkgs.ibus}/bin/ibus-daemon -d -t none";
+  };
+}