Be responsive when generating private key

js/crypto.js

@@ -112,6 +112,9 @@ function signMessage(text, key, callback) {
  * @returns {undefined}
  */
 function generatePrivateKey(userid, passphrase, callback) {
+    var statustextEl = $("#statustext");
+    statustextEl.html("<i class='fas fa-spin fa-spinner'></i> Generating cryptographic key...");
+    setTimeout(function () {
         var F = kbpgp["const"].openpgp;
 
         var opts = {
@@ -130,11 +133,16 @@ function generatePrivateKey(userid, passphrase, callback) {
                     alice.export_pgp_private({
                         passphrase: passphrase
                     }, function (err, pgp_private) {
+                        statustextEl.html("<i class='fas fa-check'></i> Key generated!");
+                        setTimeout(function () {
+                            statustextEl.html("");
+                        }, 5000);
                         callback(alice);
                     });
                 });
             }
         });
+    }, 100);
 }
 
 function exportPublicKey() {