anki-bin: input methods do not work

[telotortium]

Describe the bug

Neither fcitx, fcitx5, nor ibus work with Anki (at least on xfce), despite working with other applications.

Steps To Reproduce

Steps to reproduce the behavior:

1. Add the following to /etc/nixos/configuration.nix:

  services.xserver.displayManager = {
    sddm.enable = true;
    defaultSession = "xfce";
  };
  i18n = {
    defaultLocale = "en_US.UTF-8";
    inputMethod = {
      enabled = "fcitx5";
      fcitx5.addons = with pkgs; [ fcitx5-with-addons fcitx5-chinese-addons ];
    };
  };

2. Install anki-bin package in user profile.
3. Start xfce. Confirm fcitx5 is running.
4. Start Anki
5. Start typing in a typed-answer field.

Expected behavior

fcitx5 input method is used, allowing me to type Chinese characters.

Additional context

buildFHSUserEnv may be responsible - perhaps a Qt5 library from the system needs to be present? Not really sure how FHS services interact with IMEs.

I've tried setting both QT_IM_MODULE=fcitx and QT_IM_MODULE=ibus (since fcitx5 should have an ibus compatibility layer) without any effect.

Notify maintainers

@Atemu

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

[user@system:~]$ nix-shell -p nix-info --run "nix-info -m"
 - system: `"x86_64-linux"`
 - host os: `Linux 5.10.81, NixOS, 21.05.4394.2553aee74fe (Okapi)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.3.16`
 - channels(rmi1): `"nixos-22.05pre333986.73369f8d086, nixpkgs-22.05pre333986.73369f8d086"`
 - channels(root): `"nixos-21.05.4394.2553aee74fe, nixos-unstable-21.11pre327669.b67e752c29f"`
 - nixpkgs: `/home/user/.nix-defexpr/channels/nixpkgs`

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:

[YizhePKU]

Same issue. I'm using Gnome wayland.

[YizhePKU]

Same issue. I'm using Gnome wayland.

[legendofa]

I also have this issue with the kime input method.

[Atemu]

I'm unsure we can do anything about this as we don't control the libraries used. I guess we could try to substitute/patch them with our own versions of the libraries.

[Atemu]

QT_IM_MODULE=fcitx anki is working for me using

  i18n.inputMethod = {
    enabled = "fcitx5";
    fcitx5.addons = with pkgs; [ fcitx5-mozc ];
  };

[euank]

Are you using anki or anki-bin?

For me, using QT_IM_MODULE=ibus + anki from anki-bin, this issue still reproduces.
anki launches, I can use it normally, but switching input methods doesn't work on its input fields, so I think this is still an issue.

[Atemu]

@euank does fcitx work for you?

[wiggleforlife]

Running QT_IM_MODULE=fcitx anki is working for me on Fcitx5 + KDE6 on Wayland. If I force Wayland for Anki, this also fixes fcitx.