feat: i18n

i18n.toml

@@ -0,0 +1,10 @@
+# (for which all strings must be present) when using the fluent
+# system.
+fallback_language = "en"
+
+# (Optional) Use the fluent localization system.
+[fluent]
+# (Required) The path to the assets directory.
+# The paths inside the assets directory should be structured like so:
+# `assets_dir/{language}/{domain}.ftl`
+assets_dir = "i18n"

lala_bar/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lala-bar"
-version.workspace = true
+version = "0.4.1"
 edition.workspace = true
 description = "a bar on layershell with iced-rs"
 authors.workspace = true
@@ -46,3 +46,9 @@ async-trait.workspace = true
 tracing-journald = "0.3.0"
 iced_aw = "0.11.0"
 iced_fonts = "0.1.1"
+i18n-embed = { version = "0.13.4", features = [
+	"fluent-system",
+	"desktop-requester",
+] }
+i18n-embed-fl = "0.6.4"
+rust-embed = "6.3.0"

lala_bar/i18n.toml

@@ -0,0 +1,10 @@
+# (for which all strings must be present) when using the fluent
+# system.
+fallback_language = "en"
+
+# (Optional) Use the fluent localization system.
+[fluent]
+# (Required) The path to the assets directory.
+# The paths inside the assets directory should be structured like so:
+# `assets_dir/{language}/{domain}.ftl`
+assets_dir = "i18n"

lala_bar/i18n/en/lala_bar.ftl

@@ -0,0 +1,3 @@
+balance = balance
+right = right
+left = left

lala_bar/src/localize.rs

@@ -0,0 +1,45 @@
+use i18n_embed::{
+    fluent::{fluent_language_loader, FluentLanguageLoader},
+    DefaultLocalizer, LanguageLoader, Localizer,
+};
+use rust_embed::RustEmbed;
+use std::sync::LazyLock;
+
+#[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
+});
+
+#[macro_export]
+macro_rules! fl {
+    ($message_id:literal) => {{
+        i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER, $message_id)
+    }};
+
+    ($message_id:literal, $($args:expr),*) => {{
+        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() {
+    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 App List {}", error);
+    }
+}

lala_bar/src/main.rs

@@ -15,6 +15,7 @@ mod aximer;
 mod config;
 mod dbusbackend;
 mod launcher;
+mod localize;
 mod music_bar;
 mod notify;
 mod slider;
@@ -35,6 +36,7 @@ pub fn main() -> Result<(), iced_layershell::Error> {
                                                              //.unwrap(),
         )
         .init();
+    localize::localize();
     LalaMusicBar::run(Settings {
         layer_settings: LayerShellSettings {
             size: Some((0, 35)),

lala_bar/src/music_bar.rs

@@ -1,5 +1,6 @@
 use crate::config::*;
 use crate::dbusbackend;
+use crate::fl;
 use crate::get_metadata;
 use crate::launcher::LaunchMessage;
 use crate::notify::{NotifyCommand, NotifyUnitWidgetInfo};
@@ -109,9 +110,10 @@ impl LalaMusicBar {
     fn update_balance(&mut self) {
         self.left = aximer::get_left().unwrap_or(0);
         self.right = aximer::get_right().unwrap_or(0);
-        self.left_text = format!("left {}%", self.left);
-        self.right_text = format!("right {}%", self.right);
-        self.balance_text = format!("balance {}%", self.balance_percent());
+
+        self.left_text = format!("{} {}%", fl!("left"), self.left);
+        self.right_text = format!("{} {}%", fl!("right"), self.right);
+        self.balance_text = format!("{} {}%", fl!("balance"), self.balance_percent());
     }
 
     fn set_balance(&mut self, balance: u8) {