`TranslationServer.translate()` non-functional in editor

[betalars]

Tested versions

v4.3.stable.nixpkgs [77dcf97]

System information

nixos-unstable

Issue description

TranslationServer seems to not work in the editor at all, witch I partly understand, but especially it not working when being explicitly called from script is a hindrance to me right now.

Steps to reproduce

1. check the console after opening main scene
2. run the game

EXPECTED:
prints "Es ist Mittwoch, meine Kerle!" both times.
OBSERVED:
only prints the translated message in game.

Minimal reproduction project (MRP)

i18-editor-bug.zip

[timothyqiu]

This is expected currently.

TranslationServer works, but project translations are not loaded in the editor, and translations are disabled for the edited scene.

Just curious, what's your use case for TranslationServer.translate()? If you do need to call that in some tool script, you can load your translations manually and add them via TranslationServer.add_translation().

[betalars]

I have a tool that dynamically stitches together a text dynamically based on translated sub-stings. I use that to gradually reveal text as it is spoken. And because the voice lines and text can have different languages, that was the most practical thing to do. Working on that tool is really annoying I must say when the translations are not available in editor.

Also: German and English have quite different lengths, so it is really difficult to work on ui when I cannot test with different translations in editor, even when I explicitly force it in code.

Also: if no locale is loaded in the editor, then
TranslationServer.get_loaded_locales()
should not return anything in editor.

I don't think your workaround works btw:

print(TranslationServer.get_loaded_locales())
TranslationServer.add_translation(preload("res://translation.de.translation"))
print(TranslationServer.translate("wensday"))

prints

["de", "en"]
wensday

[timothyqiu]

I don't think your workaround works btw

Sorry, I confused the changes I'm making with the stable version / master. I am working on removing the special handling for editor translations, so that the editor's translation workflow is consistent with the game's translation workflow, so that translations can be previewed in the editor and the TranslationServer is works regularly. That could solve this issue I think (that PR still needs some work though).

For your use case, I think you can use preload("res://translation.de.translation").get_message("wesday") directly (the difference is that it returns an empty string when there is no translation for the text.

[timothyqiu]

This is solved by #96921.

Note that it's still not recommended to call TranslationServer.set_locale() in tool script as it could mess up editor internals.

But you can create your own domain instead:

var domain := TranslationServer.get_or_add_domain("mydomain")
domain.clear()
domain.add_translation(preload("res://translation.en.translation"))
domain.add_translation(preload("res://translation.de.translation"))
domain.set_locale_override("de")
print(domain.translate("wensday"))