i18n on the web

web/src/ui/mod.rs

@@ -13,6 +13,10 @@ pub(crate) const SESSION_COOKIE: &str = "analytics_token";
 /// `ui/base.html` renders `ui/navbar.html` unconditionally.
 #[derive(Clone, Debug)]
 pub(crate) struct Nav {
+    // Used by templates as they are migrated to Fluent. It is intentionally
+    // present before the first template string is converted.
+    #[allow(dead_code)]
+    pub locale: crate::i18n::Locale,
     pub authenticated: bool,
     pub role: String,
     pub can_admin: bool,
@@ -29,6 +33,7 @@ impl Nav {
     /// entries.
     pub(crate) fn new(headers: &HeaderMap, active: &'static str) -> Self {
         Self {
+            locale: crate::i18n::Locale::from_headers(headers),
             authenticated: crate::cookie_value(headers, SESSION_COOKIE).is_some(),
             role: String::new(),
             can_admin: false,
@@ -40,6 +45,16 @@ impl Nav {
         }
     }
 
+    #[allow(dead_code)]
+    pub(crate) fn language(&self) -> &'static str {
+        self.locale.code()
+    }
+
+    #[allow(dead_code)]
+    pub(crate) fn tr(&self, key: &str) -> String {
+        self.locale.lookup(key)
+    }
+
     pub(crate) fn with_authorization(
         mut self,
         authorization: &crate::auth::AuthorizationSnapshot,
@@ -64,6 +79,7 @@ impl Nav {
 impl Default for Nav {
     fn default() -> Self {
         Self {
+            locale: crate::i18n::Locale::default(),
             authenticated: false,
             role: String::new(),
             can_admin: false,