Merge pull request #153 from abhaykv04/bug/disable-button-until-input

Fix #150: Disable Go button until input is filled

app/components/UrlForm.tsx

@@ -1,10 +1,15 @@
+import { useState } from "react";
 import { Form } from "remix";
 
 export type UrlFormProps = {
   className?: string;
 };
 
 export function UrlForm({ className }: UrlFormProps) {
+  const [inputValue, setInputValue] = useState("");
+
+  const isButtonDisabled = !inputValue.length;
+
   return (
     <Form
       method="post"
@@ -18,11 +23,16 @@ export function UrlForm({ className }: UrlFormProps) {
           id="jsonUrl"
           className="block flex-grow text-base text-slate-200 placeholder:text-slate-300 bg-slate-900/40 border border-slate-600 rounded-l-sm py-2 px-3 transition duration-300 focus:ring-indigo-500 focus:border-indigo-500"
           placeholder="Enter a JSON URL or paste in JSON here..."
+          value={inputValue}
+          onChange={(event) => setInputValue(event.target.value)}
         />
         <button
           type="submit"
           value="Go"
-          className="inline-flex items-center justify-center px-4 py-2 border border-transparent font-medium rounded-r-sm text-white bg-lime-500 transition hover:bg-lime-600 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-lime-500"
+          className={`inline-flex items-center justify-center px-4 py-2 border border-transparent font-medium rounded-r-sm text-white bg-lime-500 transition hover:bg-lime-600 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-lime-500 ${
+            isButtonDisabled && "disabled:opacity-50 disabled:hover:bg-lime-500"
+          }`}
+          disabled={isButtonDisabled}
         >
           Go
         </button>