feat: Add token to recieve address QR and link to pay anything flow on Solana and Tron, also fix token not showing on evm wallets QRs when scanned from dashboard (#3320)

cw_core/lib/payment_uris.dart

@@ -176,14 +176,23 @@ class PolygonURI extends PaymentURI {
 }
 
 class SolanaURI extends PaymentURI {
-  SolanaURI({required super.amount, required super.address});
+  SolanaURI({required super.amount, required super.address, this.contractAddress});
+
+  final String? contractAddress;
 
   @override
   String toString() {
     var base = 'solana:$address';
+    final params = <String>[];
 
     if (amount.isNotEmpty) {
-      base += '?amount=${amount.replaceAll(',', '.')}';
+      params.add('amount=${amount.replaceAll(',', '.')}');
+    }
+    if (contractAddress != null && contractAddress!.isNotEmpty) {
+      params.add('spl-token=$contractAddress');
+    }
+    if (params.isNotEmpty) {
+      base += '?${params.join('&')}';
     }
 
     return base;
@@ -191,14 +200,23 @@ class SolanaURI extends PaymentURI {
 }
 
 class TronURI extends PaymentURI {
-  TronURI({required super.amount, required super.address});
+  TronURI({required super.amount, required super.address, this.contractAddress});
+
+  final String? contractAddress;
 
   @override
   String toString() {
     var base = 'tron:$address';
+    final params = <String>[];
 
     if (amount.isNotEmpty) {
-      base += '?amount=${amount.replaceAll(',', '.')}';
+      params.add('amount=${amount.replaceAll(',', '.')}');
+    }
+    if (contractAddress != null && contractAddress!.isNotEmpty) {
+      params.add('token=$contractAddress');
+    }
+    if (params.isNotEmpty) {
+      base += '?${params.join('&')}';
     }
 
     return base;

lib/new-ui/pages/send_page.dart

@@ -228,6 +228,14 @@ class _NewSendPageState extends State<NewSendPage> {
       _addressControllers[0].text = widget.initialPaymentRequest!.address;
       _amountControllers[0].text = widget.initialPaymentRequest!.amount;
       _memoControllers[0].text = widget.initialPaymentRequest!.note;
+      final contractAddress = widget.initialPaymentRequest!.contractAddress;
+      if (contractAddress != null && contractAddress.isNotEmpty) {
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          if (mounted) {
+            widget.sendViewModel.fetchTokenForContractAddress(contractAddress);
+          }
+        });
+      }
     }
 
     /// if the current wallet doesn't match the one in the qr code

lib/utils/payment_request.dart

@@ -60,6 +60,16 @@ class PaymentRequest {
         address = paymentUri.address;
         amount = paymentUri.amount;
         contractAddress = paymentUri.contractAddress;
+      } else if (scheme == "tron") {
+        final token = uri.queryParameters['token'];
+        if (token != null && token.isNotEmpty) {
+          contractAddress = token;
+        }
+      } else if (scheme == "solana") {
+        final splToken = uri.queryParameters['spl-token'];
+        if (splToken != null && splToken.isNotEmpty) {
+          contractAddress = splToken;
+        }
       }
     }
 

lib/utils/token_utilities.dart

@@ -144,7 +144,7 @@ class TokenUtilities {
     return result;
   }
 
-  /// Finds a token by address across wallets depending on [walletType]
+  /// Finds a token by address for the given [walletType].
   /// - EVM chains: match by contractAddress
   /// - Solana: match by mintAddress
   /// - Tron: match by contractAddress
@@ -152,34 +152,15 @@ class TokenUtilities {
     required WalletType walletType,
     required String address,
   }) async {
-    if(address.isEmpty) return null;
+    if (address.isEmpty) return null;
     final lower = address.toLowerCase();
-    switch (walletType) {
-      case WalletType.ethereum:
-      case WalletType.polygon:
-      case WalletType.base:
-      case WalletType.arbitrum:
-      case WalletType.bsc:
-        final tokens = await loadAllUniqueEvmTokens();
-        for (final t in tokens) {
-          if (t.contractAddress.toLowerCase() == lower) return t;
-        }
-        return null;
-      case WalletType.solana:
-        final solTokens = await loadAllUniqueSolTokens();
-        for (final t in solTokens) {
-          if (t.mintAddress.toLowerCase() == lower) return t;
-        }
-        return null;
-      case WalletType.tron:
-        final tronTokens = await loadAllUniqueTronTokens();
-        for (final t in tronTokens) {
-          if (t.contractAddress.toLowerCase() == lower) return t;
-        }
-        return null;
-      default:
-        return null;
+    final tokens = await getAvailableTokensForNetwork(walletType);
+    for (final t in tokens) {
+      if (t is Erc20Token && t.contractAddress.toLowerCase() == lower) return t;
+      if (t is SPLToken && t.mintAddress.toLowerCase() == lower) return t;
+      if (t is TronToken && t.contractAddress.toLowerCase() == lower) return t;
     }
+    return null;
   }
 
   static Future<Box<Erc20Token>> _openEvmTokensBoxFor(WalletInfo walletInfo) async {

lib/view_model/wallet_address_list/wallet_address_list_view_model.dart

@@ -34,6 +34,8 @@ import 'package:cw_core/currency.dart';
 import 'package:cw_core/currency_for_wallet_type.dart';
 import 'package:cw_core/erc20_token.dart';
 import 'package:cw_core/payment_uris.dart';
+import 'package:cw_core/spl_token.dart';
+import 'package:cw_core/tron_token.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:mobx/mobx.dart';
 
@@ -202,6 +204,20 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
           amount: _amount,
           contractAddress: (tokenCurrency as Erc20Token).contractAddress);
     }
+    if (tokenCurrency is TronToken && wallet.type == WalletType.tron) {
+      return TronURI(
+        amount: _amount,
+        address: wallet.walletAddresses.address,
+        contractAddress: (tokenCurrency as TronToken).contractAddress,
+      );
+    }
+    if (tokenCurrency is SPLToken && wallet.type == WalletType.solana) {
+      return SolanaURI(
+        amount: _amount,
+        address: wallet.walletAddresses.address,
+        contractAddress: (tokenCurrency as SPLToken).mintAddress,
+      );
+    }
     if (isLightning && _lnPaymentRequest != null) return _lnPaymentRequest!;
     return wallet.walletAddresses.getPaymentUri(_amount);
   }