paynym claim cancellation hack (should probably not even allow cancel in ui)

lib/pages/paynym/dialogs/claiming_paynym_dialog.dart

@@ -5,6 +5,7 @@ import 'package:stackwallet/utilities/text_styles.dart';
 import 'package:stackwallet/utilities/theme/stack_colors.dart';
 import 'package:stackwallet/utilities/util.dart';
 import 'package:stackwallet/widgets/desktop/desktop_dialog.dart';
+import 'package:stackwallet/widgets/desktop/desktop_dialog_close_button.dart';
 import 'package:stackwallet/widgets/desktop/secondary_button.dart';
 import 'package:stackwallet/widgets/stack_dialog.dart';
 
@@ -49,39 +50,62 @@ class _RestoringDialogState extends State<ClaimingPaynymDialog>
   Widget build(BuildContext context) {
     if (Util.isDesktop) {
       return DesktopDialog(
-        child: Padding(
+        maxWidth: 580,
+        maxHeight: double.infinity,
+        child: Column(
+          children: [
+            Row(
+              mainAxisAlignment: MainAxisAlignment.end,
+              children: [
+                DesktopDialogCloseButton(
+                  onPressedOverride: () => Navigator.of(context).pop(true),
+                ),
+              ],
+            ),
+            RotationTransition(
+              turns: _spinAnimation,
+              child: SvgPicture.asset(
+                Assets.svg.arrowRotate,
+                color:
+                    Theme.of(context).extension<StackColors>()!.accentColorDark,
+                width: 40,
+                height: 40,
+              ),
+            ),
+            Padding(
               padding: const EdgeInsets.all(40),
               child: Column(
                 mainAxisSize: MainAxisSize.min,
                 children: [
                   Text(
                     "Claiming PayNym",
-                style: STextStyles.desktopH3(context),
+                    style: STextStyles.desktopH2(context),
                   ),
                   const SizedBox(
                     height: 20,
                   ),
                   Text(
                     "We are generating your PayNym",
-                style: STextStyles.desktopSubtitleH1(context),
+                    style: STextStyles.desktopTextMedium(context).copyWith(
+                      color:
+                          Theme.of(context).extension<StackColors>()!.textDark3,
+                    ),
                   ),
                   const SizedBox(
                     height: 40,
                   ),
-              RotationTransition(
+                  SecondaryButton(
-                turns: _spinAnimation,
+                    label: "Cancel",
-                child: SvgPicture.asset(
+                    width: 272,
-                  Assets.svg.arrowRotate,
+                    onPressed: () {
-                  color: Theme.of(context)
+                      Navigator.of(context).pop(true);
-                      .extension<StackColors>()!
+                    },
-                      .accentColorDark,
-                  width: 24,
-                  height: 24,
-                ),
                   ),
                 ],
               ),
             ),
+          ],
+        ),
       );
     } else {
       return WillPopScope(

lib/pages/paynym/paynym_claim_view.dart

@@ -165,15 +165,20 @@ class _PaynymClaimViewState extends ConsumerState<PaynymClaimView> {
                       .getManager(widget.walletId)
                       .wallet as DogecoinWallet;
 
+                  if (shouldCancel) return;
+
                   // get payment code
                   final pCode = await wallet.getPaymentCode();
 
+                  if (shouldCancel) return;
+
                   // attempt to create new entry in paynym.is db
                   final created = await ref
                       .read(paynymAPIProvider)
                       .create(pCode.toString());
 
                   debugPrint("created:$created");
+                  if (shouldCancel) return;
 
                   if (created.value!.claimed) {
                     // payment code already claimed
@@ -193,18 +198,26 @@ class _PaynymClaimViewState extends ConsumerState<PaynymClaimView> {
                     return;
                   }
 
+                  if (shouldCancel) return;
+
                   final token =
                       await ref.read(paynymAPIProvider).token(pCode.toString());
 
+                  if (shouldCancel) return;
+
                   // sign token with notification private key
                   final signature =
                       await wallet.signStringWithNotificationKey(token.value!);
 
+                  if (shouldCancel) return;
+
                   // claim paynym account
                   final claim = await ref
                       .read(paynymAPIProvider)
                       .claim(token.value!, signature);
 
+                  if (shouldCancel) return;
+
                   if (claim.value?.claimed == pCode.toString()) {
                     final account =
                         await ref.read(paynymAPIProvider).nym(pCode.toString());