Fixed submit button bug and progessbar not showing when uploading video with button

electron/main/renderer.js

@@ -57,7 +57,11 @@ language_option.addEventListener('change', (e)=>{
 
 videoUpload.addEventListener("change", () => {
   try {
-    activateSubmitBtn(videoUpload.files.length > 0);
+    if (videoUpload.files.length > 0) {
+      const file = videoUpload.files[0];
+      handleFiles([file]);
+  }
+  activateSubmitBtn(currentVideoPath !== null);
   } catch (error) {
     console.log(error);
   }

electron/main/script.js

@@ -1,4 +1,4 @@
-
+let currentVideoPath = null;
 //function to check if one checkbox is at least klicked
 function checkBoxes() {
   try {
@@ -98,11 +98,13 @@ function changeLanguage(language) {
 function handleFiles(files) {
   try {
     if (files.length > 0) {
+      document.getElementById("progressbar").style.visibility = "visible";
       const file = files[0];
       if (file.type.startsWith('video/')) {
         const filePath = window.explorer.onFileDrop(files[0])
         videoUpload.files = files;
         fileName.textContent = `Chosen video: ${file.name}`;
+        currentVideoPath = filePath;
         generateThumbnail(filePath);
         activateSubmitBtn(true);
       }
@@ -185,6 +187,7 @@ function loadLanguageOptions(){
   }
 }
 
+
 function activateSubmitBtn(hasFile){
   try {
     submitButton.disabled = !hasFile;