Initial commit. UI localisation works.

src/locales/catalogues.rs

@@ -0,0 +1,52 @@
+use std::collections::HashMap;
+use lazy_static::lazy_static;
+use leptos::*;
+
+lazy_static! {
+    static ref LANGUAGES: HashMap<&'static str, HashMap<&'static str, &'static str>> = {
+        let m = HashMap::from([
+            ("cs", HashMap::from( [
+                ("Dashboard", "Přehled"),
+                ("Settings", "Nastavení"),
+                ("Search...", "Najít...")
+            ])),
+            ("sk", HashMap::from( [
+                ("Dashboard", "Prehlad"),
+                ("Settings", "Nastavenie"),
+                ("Search...", "Najsť...")
+            ]))
+        ]);
+        m
+    };
+}
+
+fn get_locales(cx: Scope) -> Vec<Option<String>> {
+    let (loc, set_loc) = create_signal(cx, Vec::new());
+
+    create_effect(cx, move |_| {
+        let js_locales = window().navigator().languages();
+        set_loc.update(|l| *l = js_locales.into_iter().map(|val| val.as_string()).collect::<Vec<_>>());
+    });
+
+   loc.get_untracked()
+}
+
+pub fn get_dictionary(cx: Scope) -> Option<&'static HashMap<&'static str, &'static str>> {
+    let locs = get_locales(cx);
+
+    for loc in locs {
+        if let Some(key) = loc {
+            if let Some(k) = key.split("-").collect::<Vec<_>>().get(0) {
+                if *k == "en" {
+                    return None;
+                }
+                if !LANGUAGES.contains_key(*k) {
+                    continue;
+                }
+                return LANGUAGES.get(*k);
+            }
+        }
+    }
+
+    None
+}

src/locales/mod.rs

@@ -0,0 +1,15 @@
+use leptos::*;
+use crate::locales::catalogues::get_dictionary;
+
+mod catalogues;
+
+pub fn trl(cx: Scope, phrase: &'static str) -> impl Fn() -> &'static str {
+    let mut translated = phrase;
+    if let Some(dict) = get_dictionary(cx) {
+        if let Some(p) = dict.get(phrase) {
+            translated = *p;
+        }
+    }
+
+    || { translated }
+}