feat: disable submit button for masp tx when using disconnected ledger device

apps/namadillo/src/App/Masp/MaspShield.tsx

@@ -10,13 +10,14 @@ import {
 import { allDefaultAccountsAtom } from "atoms/accounts";
 import { namadaTransparentAssetsAtom } from "atoms/balance/atoms";
 import { chainParametersAtom } from "atoms/chain/atoms";
+import { ledgerStatusDataAtom } from "atoms/ledger";
 import { rpcUrlAtom } from "atoms/settings";
 import BigNumber from "bignumber.js";
 import { useTransactionActions } from "hooks/useTransactionActions";
 import { useTransfer } from "hooks/useTransfer";
 import { wallets } from "integrations";
 import invariant from "invariant";
-import { useAtomValue } from "jotai";
+import { useAtom, useAtomValue } from "jotai";
 import { createTransferDataFromNamada } from "lib/transactions";
 import { useState } from "react";
 import { generatePath, useNavigate, useSearchParams } from "react-router-dom";
@@ -32,13 +33,17 @@ export const MaspShield: React.FC = () => {
   const rpcUrl = useAtomValue(rpcUrlAtom);
   const chainParameters = useAtomValue(chainParametersAtom);
   const defaultAccounts = useAtomValue(allDefaultAccountsAtom);
-
+  const [ledgerStatus, setLedgerStatusStop] = useAtom(ledgerStatusDataAtom);
   const { data: availableAssets, isLoading: isLoadingAssets } = useAtomValue(
     namadaTransparentAssetsAtom
   );
 
   const { storeTransaction } = useTransactionActions();
 
+  const ledgerAccountInfo = ledgerStatus && {
+    deviceConnected: ledgerStatus.connected,
+    errorMessage: ledgerStatus.errorMessage,
+  };
   const chainId = chainParameters.data?.chainId;
   const sourceAddress = defaultAccounts.data?.find(
     (account) => account.type !== AccountType.ShieldedKeys
@@ -120,6 +125,9 @@ export const MaspShield: React.FC = () => {
     }
   };
 
+  // We stop the ledger status check when the transfer is in progress
+  setLedgerStatusStop(isPerformingTransfer);
+
   return (
     <Panel className="relative min-h-[600px]">
       <header className="flex flex-col items-center text-center mb-3 gap-6">
@@ -143,6 +151,7 @@ export const MaspShield: React.FC = () => {
           onChangeSelectedAsset,
           amount: displayAmount,
           onChangeAmount: setDisplayAmount,
+          ledgerAccountInfo,
         }}
         destination={{
           chain: namadaChain as Chain,

apps/namadillo/src/App/Masp/MaspUnshield.tsx

@@ -10,13 +10,14 @@ import {
 import { allDefaultAccountsAtom } from "atoms/accounts";
 import { namadaShieldedAssetsAtom } from "atoms/balance/atoms";
 import { chainParametersAtom } from "atoms/chain/atoms";
+import { ledgerStatusDataAtom } from "atoms/ledger/atoms";
 import { rpcUrlAtom } from "atoms/settings";
 import BigNumber from "bignumber.js";
 import { useTransactionActions } from "hooks/useTransactionActions";
 import { useTransfer } from "hooks/useTransfer";
 import { wallets } from "integrations";
 import invariant from "invariant";
-import { useAtomValue } from "jotai";
+import { useAtom, useAtomValue } from "jotai";
 import { createTransferDataFromNamada } from "lib/transactions";
 import { useState } from "react";
 import { generatePath, useNavigate, useSearchParams } from "react-router-dom";
@@ -32,13 +33,17 @@ export const MaspUnshield: React.FC = () => {
   const rpcUrl = useAtomValue(rpcUrlAtom);
   const chainParameters = useAtomValue(chainParametersAtom);
   const defaultAccounts = useAtomValue(allDefaultAccountsAtom);
-
+  const [ledgerStatus, setLedgerStatusStop] = useAtom(ledgerStatusDataAtom);
   const { data: availableAssets, isLoading: isLoadingAssets } = useAtomValue(
     namadaShieldedAssetsAtom
   );
 
   const { storeTransaction } = useTransactionActions();
 
+  const ledgerAccountInfo = ledgerStatus && {
+    deviceConnected: ledgerStatus.connected,
+    errorMessage: ledgerStatus.errorMessage,
+  };
   const chainId = chainParameters.data?.chainId;
   const account = defaultAccounts.data?.find(
     (account) => account.type === AccountType.ShieldedKeys
@@ -120,6 +125,8 @@ export const MaspUnshield: React.FC = () => {
       setGeneralErrorMessage(err + "");
     }
   };
+  // We stop the ledger status check when the transfer is in progress
+  setLedgerStatusStop(isPerformingTransfer);
 
   return (
     <Panel className="relative min-h-[600px]">
@@ -145,6 +152,7 @@ export const MaspUnshield: React.FC = () => {
           onChangeSelectedAsset,
           amount: displayAmount,
           onChangeAmount: setDisplayAmount,
+          ledgerAccountInfo,
         }}
         destination={{
           chain: namadaChain as Chain,

apps/namadillo/src/App/NamadaTransfer/NamadaTransfer.tsx

@@ -13,13 +13,14 @@ import {
   namadaTransparentAssetsAtom,
 } from "atoms/balance/atoms";
 import { chainParametersAtom } from "atoms/chain/atoms";
+import { ledgerStatusDataAtom } from "atoms/ledger";
 import { applicationFeaturesAtom, rpcUrlAtom } from "atoms/settings";
 import BigNumber from "bignumber.js";
 import { useTransactionActions } from "hooks/useTransactionActions";
 import { useTransfer } from "hooks/useTransfer";
 import { wallets } from "integrations";
 import invariant from "invariant";
-import { useAtomValue } from "jotai";
+import { useAtom, useAtomValue } from "jotai";
 import { createTransferDataFromNamada } from "lib/transactions";
 import { useMemo, useState } from "react";
 import { generatePath, useNavigate, useSearchParams } from "react-router-dom";
@@ -41,6 +42,7 @@ export const NamadaTransfer: React.FC = () => {
   const features = useAtomValue(applicationFeaturesAtom);
   const chainParameters = useAtomValue(chainParametersAtom);
   const defaultAccounts = useAtomValue(allDefaultAccountsAtom);
+  const [ledgerStatus, setLedgerStatusStop] = useAtom(ledgerStatusDataAtom);
 
   const { data: availableAssetsData, isLoading: isLoadingAssets } =
     useAtomValue(
@@ -49,6 +51,10 @@ export const NamadaTransfer: React.FC = () => {
 
   const { storeTransaction } = useTransactionActions();
 
+  const ledgerAccountInfo = ledgerStatus && {
+    deviceConnected: ledgerStatus.connected,
+    errorMessage: ledgerStatus.errorMessage,
+  };
   const availableAssets = useMemo(() => {
     if (features.namTransfersEnabled) {
       return availableAssetsData;
@@ -153,6 +159,9 @@ export const NamadaTransfer: React.FC = () => {
     }
   };
 
+  // We stop the ledger status check when the transfer is in progress
+  setLedgerStatusStop(isPerformingTransfer);
+
   return (
     <Panel className="relative min-h-[600px]">
       <header className="flex flex-col items-center text-center mb-3 gap-6">
@@ -181,12 +190,14 @@ export const NamadaTransfer: React.FC = () => {
           onChangeShielded: setShielded,
           amount: displayAmount,
           onChangeAmount: setDisplayAmount,
+          ledgerAccountInfo,
         }}
         destination={{
           chain: namadaChain as Chain,
           enableCustomAddress: true,
           customAddress,
           onChangeCustomAddress: setCustomAddress,
+          isShielded: isTargetShielded,
         }}
         gasConfig={gasConfig}
         isSubmitting={isPerformingTransfer}

apps/namadillo/src/App/Transfer/TransferModule.tsx

@@ -8,6 +8,7 @@ import {
   Address,
   AddressWithAssetAndAmountMap,
   GasConfig,
+  LedgerAccountInfo,
   WalletProvider,
 } from "types";
 import { getDisplayGasFee } from "utils/gas";
@@ -31,6 +32,8 @@ type TransferModuleConfig = {
   onChangeChain?: (chain: Chain) => void;
   isShielded?: boolean;
   onChangeShielded?: (isShielded: boolean) => void;
+  // Additional information if selected account is a ledger
+  ledgerAccountInfo?: LedgerAccountInfo;
 };
 
 export type TransferSourceProps = TransferModuleConfig & {
@@ -87,6 +90,7 @@ type ValidationResult =
   | "NoDestinationChain"
   | "NoTransactionFee"
   | "NotEnoughBalance"
+  | "NoLedgerConnected"
   | "Ok";
 
 export const TransferModule = ({
@@ -155,6 +159,12 @@ export const TransferModule = ({
       return "NotEnoughBalance";
     } else if (!destination.wallet && !destination.customAddress) {
       return "NoDestinationWallet";
+    } else if (
+      (source.isShielded || destination.isShielded) &&
+      source.ledgerAccountInfo &&
+      !source.ledgerAccountInfo.deviceConnected
+    ) {
+      return "NoLedgerConnected";
     } else {
       return "Ok";
     }
@@ -236,6 +246,10 @@ export const TransferModule = ({
       return "Select Asset";
     }
 
+    if (validationResult === "NoLedgerConnected") {
+      return "Connect your ledger and open the Namada App";
+    }
+
     // TODO: this should be updated for nfts
     if (validationResult === "NoAmount") {
       return "Define an amount to transfer";

apps/namadillo/src/atoms/accounts/atoms.ts

@@ -10,6 +10,7 @@ import { namadaExtensionConnectedAtom } from "atoms/settings";
 import { queryDependentFn } from "atoms/utils";
 import BigNumber from "bignumber.js";
 import { NamadaKeychain } from "hooks/useNamadaKeychain";
+import { atom } from "jotai";
 import { atomWithMutation, atomWithQuery } from "jotai-tanstack-query";
 import {
   fetchAccountBalance,
@@ -69,6 +70,13 @@ export const allDefaultAccountsAtom = atomWithQuery<Account[]>((get) => {
   };
 });
 
+export const isLedgerAccountAtom = atom((get) => {
+  const defaultAccounts = get(allDefaultAccountsAtom);
+  return Boolean(
+    defaultAccounts.data?.find((account) => account.type === AccountType.Ledger)
+  );
+});
+
 export const updateDefaultAccountAtom = atomWithMutation(() => {
   const namadaPromise = new NamadaKeychain().get();
   return {

apps/namadillo/src/atoms/ledger/atoms.ts

@@ -0,0 +1,75 @@
+import { ledgerUSBList } from "@namada/sdk/web";
+import { LedgerError } from "@zondax/ledger-namada";
+import { isLedgerAccountAtom } from "atoms/accounts";
+import { atom } from "jotai";
+
+import { atomWithQuery } from "jotai-tanstack-query";
+import { getSdkInstance } from "utils/sdk";
+
+export type LedgerStatus = {
+  connected: boolean;
+  errorMessage: string;
+};
+
+const ledgerStatusStopAtom = atom(false);
+
+export const ledgerStatusAtom = atomWithQuery<LedgerStatus | undefined>(() => {
+  return {
+    refetchInterval: 1000,
+    queryKey: ["ledger-status"],
+    queryFn: async () => {
+      const devices = await ledgerUSBList();
+
+      if (devices.length > 0) {
+        try {
+          // Disable console.warn to prevent the warning from showing up in the UI in the loop
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
+          (console as any).warnOld = console.warn;
+          console.warn = () => {};
+
+          const sdk = await getSdkInstance();
+          const ledger = await sdk.initLedger();
+          const {
+            version: { returnCode, errorMessage },
+          } = await ledger.status();
+
+          const connected = returnCode === LedgerError.NoErrors;
+
+          await ledger.closeTransport();
+
+          return {
+            connected,
+            errorMessage,
+          };
+        } catch (e) {
+          return {
+            connected: false,
+            errorMessage: `${e}`,
+          };
+        } finally {
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
+          console.warn = (console as any).warnOld;
+        }
+      }
+
+      return {
+        connected: false,
+        errorMessage: "Ledger device not detected",
+      };
+    },
+  };
+});
+
+export const ledgerStatusDataAtom = atom(
+  (get) => {
+    const isLedgerAccount = get(isLedgerAccountAtom);
+    const ledgetStatusStop = get(ledgerStatusStopAtom);
+
+    if (isLedgerAccount && !ledgetStatusStop) {
+      return get(ledgerStatusAtom).data;
+    }
+  },
+  (_, set, stop: boolean) => {
+    set(ledgerStatusStopAtom, stop);
+  }
+);

apps/namadillo/src/atoms/ledger/index.ts

@@ -0,0 +1 @@
+export * from "./atoms";

apps/namadillo/src/types.ts

@@ -376,3 +376,8 @@ export type LocalnetToml = {
   chain_1_channel: string;
   chain_2_channel: string;
 };
+
+export type LedgerAccountInfo = {
+  deviceConnected: boolean;
+  errorMessage: string;
+};

packages/sdk/src/index.ts

@@ -1,5 +1,5 @@
 // Make Ledger available for direct-import as it is not dependent on Sdk initialization
-export { Ledger, initLedgerUSBTransport } from "./ledger";
+export { Ledger, initLedgerUSBTransport, ledgerUSBList } from "./ledger";
 export type {
   LedgerAddressAndPublicKey,
   LedgerProofGenerationKey,

packages/sdk/src/ledger.ts

@@ -55,6 +55,14 @@ export const initLedgerUSBTransport = async (): Promise<Transport> => {
   return await TransportUSB.create();
 };
 
+/**
+ * Returns a list of ledger devices
+ * @async
+ * @returns List of USB devices
+ */
+export const ledgerUSBList = async (): Promise<USBDevice[]> => {
+  return await TransportUSB.list();
+};
 export const DEFAULT_LEDGER_BIP44_PATH = makeBip44Path(coinType, {
   account: 0,
   change: 0,