languages list: template used

res/layouts/pages/languages.xml.lua

@@ -9,10 +9,9 @@ function on_open()
     table.sort(names)
     
     local panel = document.root
-    for _,k in ipairs(names) do
-        panel:add(string.format(
-            "<button onclick=%q>%s</button>",
-            string.format("core.set_setting('ui.language', %q) menu:back()", invlocales[k]), k
+    for _,name in ipairs(names) do
+        panel:add(gui.template(
+            "language",  {id=invlocales[name], name=name}
         ))
     end
     panel:add("<button onclick='menu:back()'>@Back</button>")

res/layouts/templates/language.xml

@@ -0,0 +1,4 @@
+<button 
+    onclick='core.set_setting("ui.language", "%{id}") menu:back()'>
+    %{name}
+</button>