Switch to blacklist approach on "Paste Invoice or Lightning Address" …

…page form (#321)

* Switch to blacklist approach on "Paste Invoice or Lightning Address" page form

* Remove input source restriction when handling BTC Addresses

9588656 cont.

lib/cubit/input/input_state.dart

@@ -1,6 +1,18 @@
 import 'package:flutter_breez_liquid/flutter_breez_liquid.dart';
 import 'package:l_breez/cubit/cubit.dart';
 
+typedef TypeCheck = bool Function(InputType);
+
+final List<TypeCheck> unsupportedInputTypeChecks = <TypeCheck>[
+  (InputType input) => input is InputType_NodeId,
+  (InputType input) => input is InputType_Url,
+];
+
+const Set<Type> unsupportedInputStates = <Type>{
+  NodeIdInputState,
+  UrlInputState,
+};
+
 class InputState {
   const InputState._();
 

lib/handlers/input_handler/src/input_handler.dart

@@ -96,7 +96,7 @@ class InputHandler extends Handler {
       throw inputState.data.reason;
     } else if (inputState is BitcoinAddressInputState) {
       return handleBitcoinAddress(context, inputState);
-    } else if (inputState is UrlInputState) {
+    } else if (unsupportedInputStates.contains(inputState.runtimeType)) {
       throw context.texts().payment_info_dialog_error_unsupported_input;
     } else if (inputState is EmptyInputState) {
       throw 'Failed to parse input.';
@@ -162,13 +162,11 @@ class InputHandler extends Handler {
   }
 
   Future<dynamic> handleBitcoinAddress(BuildContext context, BitcoinAddressInputState inputState) async {
-    _logger.fine('handle bitcoin address $inputState');
-    if (inputState.source == InputSource.qrcodeReader) {
-      return await Navigator.of(context).pushNamed(
-        SendChainSwapPage.routeName,
-        arguments: inputState.data,
-      );
-    }
+    _logger.fine('Handle Bitcoin Address $inputState');
+    return await Navigator.of(context).pushNamed(
+      SendChainSwapPage.routeName,
+      arguments: inputState.data,
+    );
   }
 
   void handleResult(dynamic result) {

lib/routes/enter_payment_info/enter_payment_info_page.dart

@@ -153,18 +153,12 @@ class _EnterPaymentInfoPageState extends State<EnterPaymentInfoPage> {
     });
     try {
       final InputType inputType = await inputCubit.parseInput(input: _paymentInfoController.text);
-      if (!(inputType is InputType_Bolt11 ||
-          inputType is InputType_Bolt12Offer ||
-          inputType is InputType_LnUrlPay ||
-          inputType is InputType_LnUrlWithdraw)) {
+      if (unsupportedInputTypeChecks.any((TypeCheck check) => check(inputType))) {
         errMsg = texts.payment_info_dialog_error_unsupported_input;
       }
       if (inputType is InputType_Bolt11 && inputType.invoice.amountMsat == BigInt.zero) {
         errMsg = texts.payment_request_zero_amount_not_supported;
       }
-      if (inputType is InputType_BitcoinAddress) {
-        errMsg = 'Please use "Send to BTC Address" option from main menu.';
-      }
     } catch (error) {
       final String errStr = error.toString();
       errMsg = errStr.contains('Unrecognized') ? texts.payment_info_dialog_error_unsupported_input : errStr;