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Author SHA1 Message Date
BruebachL
675e1f7447
[Translation] Name languages without reading the translation files (#7662)
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* [Translation] Name languages without reading the translation files

The language selector derived every label from the language's own .qm file:
it loaded the file and translated the literal "English" in the "i18n"
context. lupdate could never extract that literal from the callers, which
pass the DEFAULT_LANG_NAME macro, so a dummy QT_TRANSLATE_NOOP in
cache_settings.cpp existed to give it something to extract. #7050 deleted
that dummy, the next lupdate push dropped the string from Transifex, and
the following pull rewrote the .ts files without it. lrelease only emits
translated messages, so 22 of 25 .qm files returned an empty name.

The names are data, not translations: a selector has to be readable before
any translation is loaded, and a label must not depend on the translation
of the language it names. TranslationLoader::languageDisplayName now holds
them next to availableLanguages, falling back to Qt's native language name
and then to the code, so a language added later still gets a label.

Also select the configured language by item data instead of by matching the
translated "English" string, which pointed at the wrong row whenever the
lookup came back empty, and restore that English entry's own name: en_US is
"English (United States)" so it can no longer be confused with the
untranslated default.

Oracle shared the code path, so its wizard language page is fixed too.

* [Translation] Name the default language selection once

Review follow-up: log the unresolvable language through the page's own
category, and move the en_US entry both selectors fall back to for an unset
setting into TranslationLoader::defaultLanguageCode.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
2026-10-26 02:39:26 +01:00
BruebachL
0934380a5c
[Translations] Load Qt's own translations and build ours with the binary (#7384)
* [Translations] Load Qt's own translations and build ours with the binary

Three separate bugs kept translations from working.

installNewTranslator() loaded the application translation into
qtTranslator. QTranslator discards its previous contents on every load, so
that wiped the qt_<lang>.qm loaded one line earlier and installed an empty
translator instead. Qt's own strings were never translated on any platform.
Give each file its own translator.

QLibraryInfo::path(TranslationsPath) was the only directory searched for
Qt's translations. A relocated Qt can report a path that does not exist: the
KDE Flatpak runtime reports /usr/translations while its files live in
/usr/share/qt6/translations. Probe the usual install layouts and only hand
back the ones that exist.

The .qm files were attached to the default build target only, so building
the executable on its own left it without any translations and the language
selector empty. Attach them to the target as well.

Move the shared lookup into TranslationLoader so client and Oracle cannot
drift again, and have it report a missing translation at debug level. An
unset language is the default for English, which has no file to begin with,
and warning about it only added noise to every fresh debug log.

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

* [Tests] Define main() in translation_loader_test

Without a GTest installation the fallback in tests/CMakeLists.txt links
only gtest, not gtest_main, so the test has to bring its own main(). Every
other test already does; only this one relied on the distribution package
and failed to link on CI.

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

* [Tests] Put the translation loader fixture next to the test executable

A multi-config generator (MSBuild, Xcode) writes the executable to a
per-config subdirectory while the .qm stays in the current binary
directory, so applicationDirPath() never saw the fixture and
ABuildTreeFindsTheTranslationsNextToTheExecutable failed on Windows.

* [Translations] Depend on Qt's lrelease target and skip the loader test without lrelease

Attaching the .qm custom commands to a second custom target races with
Qt's own <Project>_lrelease target on MSBuild/Makefiles and is rejected
by Xcode, so depend on Qt's target instead. Only build the translation
loader test when Qt6::lrelease is available.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
Co-authored-by: ZeldaZach <zahalpern+github@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-03 15:04:30 +02:00