feat(i18n): add interface localization with 10 languages

README.md

@@ -27,6 +27,8 @@ Developers already spend much of their time in the terminal, yet modern terminal
 - **Quick Launch for saved commands and SSH targets**  
   Save frequently used commands or SSH connections and launch them without retyping the same input every time.
 
+- **Interface localization in ten languages**
+  Follow the system locale or choose a language from **Settings > General > Language**.
 
 - **Block-based terminal UI**  
   OTTY structures terminal output activity around atomic command blocks, making it easier to control each command and its output.

app/Cargo.toml

@@ -22,6 +22,7 @@ thiserror = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
 shell-words = "1.1.0"
+sys-locale = "0.3.2"
 notify = "8.2.0"
 
 [package.metadata.generate-rpm]

app/src/events/quick_launch.rs

@@ -3,6 +3,7 @@ use iced::Task;
 use super::AppEvent;
 use crate::app::App;
 use crate::domain::quick_launch::WizardTabInit;
+use crate::i18n::{self, Key};
 use crate::widgets::quick_launch::{
     QuickLaunchCtx, QuickLaunchEffect, QuickLaunchEvent, QuickLaunchIntent,
 };
@@ -41,13 +42,13 @@ fn handle_effect(effect: QuickLaunchEffect) -> Task<AppEvent> {
     match effect {
         QuickLaunchEffect::OpenWizardCreateTab { parent_path } => Task::done(
             AppEvent::Tabs(TabsEvent::Intent(TabsIntent::OpenWizardTab {
-                title: String::from("Create Quick Launch"),
+                title: i18n::t(Key::QuickLaunchCreateTabTitle).to_string(),
                 init: WizardTabInit::Create { parent_path },
             })),
         ),
         QuickLaunchEffect::OpenWizardEditTab { path, command } => Task::done(
             AppEvent::Tabs(TabsEvent::Intent(TabsIntent::OpenWizardTab {
-                title: format!("Edit: {}", command.title()),
+                title: i18n::edit_tab_title(command.title()),
                 init: WizardTabInit::Edit { path, command },
             })),
         ),

app/src/events/settings.rs

@@ -6,8 +6,10 @@ use otty_ui_term::settings::{
 
 use super::AppEvent;
 use crate::app::App;
+use crate::i18n::{self, Key};
 use crate::widgets::settings::types::SettingsData;
 use crate::widgets::settings::{SettingsEffect, SettingsEvent, SettingsIntent};
+use crate::widgets::tabs::{TabsEvent, TabsIntent};
 use crate::widgets::terminal_workspace::services::{
     fallback_shell_session_with_shell, setup_shell_session_with_shell,
 };
@@ -74,9 +76,18 @@ fn apply_theme(app: &mut App, data: &SettingsData) -> Task<AppEvent> {
     let palette = data.to_color_palette();
     let terminal_palette: otty_ui_term::ColorPalette = palette.into();
 
-    Task::done(AppEvent::TerminalWorkspace(TerminalWorkspaceEvent::Intent(
-        TerminalWorkspaceIntent::ApplyTheme {
-            palette: Box::new(terminal_palette),
-        },
-    )))
+    Task::batch(vec![
+        Task::done(AppEvent::Tabs(TabsEvent::Intent(
+            TabsIntent::RefreshSettingsTitle {
+                title: i18n::t(Key::SettingsTabTitle).to_string(),
+            },
+        ))),
+        Task::done(AppEvent::TerminalWorkspace(
+            TerminalWorkspaceEvent::Intent(
+                TerminalWorkspaceIntent::ApplyTheme {
+                    palette: Box::new(terminal_palette),
+                },
+            ),
+        )),
+    ])
 }