Add eCash.com (ECX) wallet metadata and guard missing currency entries

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unreleased (develop)
 
+- added: eCash.com (ECX) wallet metadata, kept disabled until the chain forks from Bitcoin on 2026-08-22.
 - added: App/device attestation for gated info-server requests
 - added: "-m" tag on the version number in the Help scene for Maestro test builds
 - added: Sign Message option in the wallet list menu for Bitcoin-family wallets, letting users prove self-hosted wallet ownership to exchanges by signing an exchange-provided message.
@@ -16,6 +17,7 @@
 - changed: Use the UI4 warning card for the Reveal Raw Keys and Reveal Master Private Key password confirmation warnings.
 - changed: Tron resource staking now describes its claim action as reclaiming your own TRX, instead of claiming a reward.
 - changed: Deep links now wait only for the account state they actually use, so a link that just opens a scene, such as the buy/sell entry, follows immediately after login instead of waiting for every wallet to finish loading.
+- fixed: Opening a wallet whose plugin has no entry in the GUI's currency table no longer crashes the app, and sharing a transaction from a chain with no block explorer no longer shares an empty link.
 - fixed: The buy/sell amount field no longer reads "Amount undefined" while the app is still working out which wallet to use.
 - fixed: Show the Monero Transaction Key of a send whose key never reached the transaction's saved metadata, by falling back to the key the wallet engine mirrors into `otherParams`. Covers sends made on 4.49.0 and later while the send path reported no key, on devices that still hold the original wallet cache.
 - fixed: Bitwave CSV exports now use ISO 8601 UTC timestamps, leave the fee columns blank so Bitwave does not double-count fees, and copy the description into the second custom metadata column.

src/components/modals/WalletListMenuModal.tsx

@@ -98,6 +98,7 @@ export const WALLET_LIST_MENU: Array<{
       'digibyte',
       'dogecoin',
       'eboost',
+      'ecashcom',
       'eos',
       'zcoin',
       'feathercoin',
@@ -132,6 +133,7 @@ export const WALLET_LIST_MENU: Array<{
       'dogecoin',
       'eboost',
       'ecash',
+      'ecashcom',
       'feathercoin',
       'groestlcoin',
       'litecoin',

src/components/themed/BuyCrypto.tsx

@@ -56,7 +56,7 @@ export const BuyCrypto: React.FC<Props> = (props: Props) => {
 
   const { displayName, pluginId } = wallet.currencyInfo
   const { highPrecisionSyncRatioDisplay = false } =
-    SPECIAL_CURRENCY_INFO[pluginId]
+    SPECIAL_CURRENCY_INFO[pluginId] ?? {}
   const syncRatioPrecisionOpts = highPrecisionSyncRatioDisplay
     ? {
         minPrecision: 5,

src/components/themed/TransactionListRow.tsx

@@ -250,6 +250,9 @@ const TransactionViewInner: React.FC<TransactionViewInnerProps> = props => {
   })
 
   const handleLongPress = useHandler(() => {
+    // Chains with no block explorer publish an empty template, which would
+    // share an empty link:
+    if (currencyInfo.transactionExplorer === '') return
     const url = sprintf(currencyInfo.transactionExplorer, transaction.txid)
     const shareOptions = {
       failOnCancel: false,

src/components/themed/WalletListCreateRow.tsx

@@ -32,9 +32,9 @@ export interface WalletListCreateRowProps {
   onPress?: (walletId: string, tokenId: EdgeTokenId) => Promise<void>
 }
 
-export const WalletListCreateRowComponent = (
-  props: WalletListCreateRowProps
-): React.ReactElement => {
+export const WalletListCreateRowComponent: React.FC<
+  WalletListCreateRowProps
+> = props => {
   const {
     createItem,
     createWalletId,
@@ -160,7 +160,11 @@ export const WalletListCreateRowComponent = (
   })
 
   return (
-    <EdgeTouchableOpacity style={styles.row} onPress={handlePress}>
+    <EdgeTouchableOpacity
+      style={styles.row}
+      testID={`walletListCreateRow_${pluginId ?? 'unknown'}`}
+      onPress={handlePress}
+    >
       <CryptoIcon
         marginRem={1}
         pluginId={pluginId}

src/constants/WalletAndCurrencyConstants.ts

@@ -58,6 +58,7 @@ export const CURRENCY_SETTINGS_KEYS = [
   'digibyte',
   'dogecoin',
   'eboost',
+  'ecashcom',
   'ethDev',
   'ethereum',
   'ethereumclassic',
@@ -524,6 +525,12 @@ export const SPECIAL_CURRENCY_INFO: Record<string, SpecialCurrencyInfo> = {
     isStakingSupported: false,
     unstoppableDomainsTicker: 'ECASH'
   },
+  ecashcom: {
+    hasSegwit: true,
+    maxSpendTargets: UTXO_MAX_SPEND_TARGETS,
+    initWalletName: lstrings.string_first_ecashcom_wallet_name,
+    isImportKeySupported: true
+  },
   ethereum: {
     initWalletName: lstrings.string_first_ethereum_wallet_name,
     dummyPublicAddress: '0x0d73358506663d484945ba85d0cd435ad610b0a0',

src/locales/en_US.ts

@@ -748,6 +748,7 @@ const strings = {
   string_first_dash_wallet_name: 'My Dash',
   string_first_digibyte_wallet_name: 'My DigiByte',
   string_first_ecash_wallet_name: 'My eCash',
+  string_first_ecashcom_wallet_name: 'My eCash.com',
   string_first_eos_wallet_name: 'My EOS',
   string_first_holesky_wallet_name: 'My Holesky',
   string_first_hyperevm_wallet_name: 'My HyperEVM',

src/locales/strings/enUS.json

@@ -570,6 +570,7 @@
   "string_first_dash_wallet_name": "My Dash",
   "string_first_digibyte_wallet_name": "My DigiByte",
   "string_first_ecash_wallet_name": "My eCash",
+  "string_first_ecashcom_wallet_name": "My eCash.com",
   "string_first_eos_wallet_name": "My EOS",
   "string_first_holesky_wallet_name": "My Holesky",
   "string_first_hyperevm_wallet_name": "My HyperEVM",

src/util/corePlugins.ts

@@ -70,6 +70,9 @@ export const currencyPlugins: EdgeCorePluginsInit = {
   bitcoingold: true,
   bitcoingoldtestnet: false,
   bitcoinsv: true,
+  // eCash.com (ECX) forks from Bitcoin on 2026-08-22. Enable once a Blockbook
+  // endpoint for the chain exists:
+  ecashcom: false,
   bitcointestnet: true,
   bitcointestnet4: true,
   dash: ENV.DASH_INIT,