OpenAuth_server/views/shared/inputs.js

(() => {
   const run = () => {
      document.querySelectorAll(".floating>input").forEach(e => {
         function checkState() {
            if (e.value !== "") {
               if (e.classList.contains("used")) return;
               e.classList.add("used")
            } else {
               if (e.classList.contains("used")) e.classList.remove("used")
            }
         }

         e.addEventListener("change", () => checkState())
         checkState()
      })
   }

   run();

   var mutationObserver = new MutationObserver(() => {
      run()
   });

   mutationObserver.observe(document.documentElement, {
      attributes: false,
      characterData: false,
      childList: true,
      subtree: true,
   });

   window.Mutt
   window.addEventListener("DOMNodeInserted", () => run())
})();