libcosmic-yoda/src/localize.rs
2025-09-05 18:50:25 +02:00

51 lines
1.5 KiB
Rust

// SPDX-License-Identifier: GPL-3.0-only
use i18n_embed::{
DefaultLocalizer, LanguageLoader, Localizer,
fluent::{FluentLanguageLoader, fluent_language_loader},
};
use rust_embed::RustEmbed;
use std::sync::{LazyLock, OnceLock};
#[derive(RustEmbed)]
#[folder = "i18n/"]
struct Localizations;
pub static LANGUAGE_LOADER: LazyLock<FluentLanguageLoader> = LazyLock::new(|| {
let loader: FluentLanguageLoader = fluent_language_loader!();
loader
.load_fallback_language(&Localizations)
.expect("Error while loading fallback language");
loader
});
static LOCALIZATION_INITIALIZED: OnceLock<()> = OnceLock::new();
#[macro_export]
macro_rules! fl {
($message_id:literal) => {{
$crate::localize::localize();
i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER, $message_id)
}};
($message_id:literal, $($args:expr),*) => {{
$crate::localize::localize();
i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER, $message_id, $($args), *)
}};
}
// Get the `Localizer` to be used for localizing this library.
pub fn localizer() -> Box<dyn Localizer> {
Box::from(DefaultLocalizer::new(&*LANGUAGE_LOADER, &Localizations))
}
pub fn localize() {
LOCALIZATION_INITIALIZED.get_or_init(|| {
let localizer = localizer();
let requested_languages = i18n_embed::DesktopLanguageRequester::requested_languages();
if let Err(error) = localizer.select(&requested_languages) {
eprintln!("Error while loading language for libcosmic {}", error);
}
});
}