reject files larger than 30 mb

Author: JerryI

Components/Sidebar/Sidebar.wlx

@@ -252,7 +252,12 @@ With[{
         const files = [...e.dataTransfer.items]
           .filter(item => item.kind === "file")
           .map(item => item.getAsFile());
+        const MAX_SIZE = 30 * 1024 * 1024;
         files.forEach(file => {
+          if (file.size > MAX_SIZE) {
+            interpretate.alert(`"${file.name}" is too large (${(file.size / 1024 / 1024).toFixed(1)} MB). Maximum allowed size is 30 MB.`);
+            return;
+          }
           const reader = new FileReader();
           reader.onload = (evt) => {
             server.io.fire('<UploadId/>', [evt.target.result, dir, file.name]);