feat: update for fcitx5

home/fcitx5/default.nix

@@ -1,4 +1,12 @@
-{pkgs, config, ... }: {
+{pkgs, config, lib, ... }: {
+
+  home.file.".config/fcitx5/profile".source = ./profile;
+  home.file.".config/fcitx5/profile-bak".source = ./profile;  # used for backup
+  # fcitx5 每次切换输入法，就会修改 ~/.config/fcitx5/profile 文件，导致我用 hm 管理的配置被覆盖
+  # 解决方法是通过如下内置，每次 rebuild 前都先删除下 profile 文件
+  home.activation.removeExistingFcitx5Profile = lib.hm.dag.entryBefore ["checkLinkTargets"] ''
+    rm -f "${config.xdg.configHome}/fcitx5/profile"
+  '';
 
   i18n.inputMethod = {
     enabled = "fcitx5";
@@ -12,4 +20,15 @@
         fcitx5-gtk     # gtk im module
       ];
   };
+
+  systemd.user.sessionVariables = {
+    # copy from  https://github.com/nix-community/home-manager/blob/master/modules/i18n/input-method/fcitx5.nix
+    GLFW_IM_MODULE = "fcitx";
+    GTK_IM_MODULE = "fcitx";
+    QT_IM_MODULE = "fcitx";
+    XMODIFIERS = "@im=fcitx";
+    INPUT_METHOD = "fcitx";
+    IMSETTINGS_MODULE  = "fcitx";
+    
+  };
 }