Handle input on clicking "Paste Invoice or ID"

lib/handlers/input_handler.dart

@@ -66,15 +66,7 @@ class InputHandler extends Handler {
     _handlingRequest = true;
     handleInputData(inputState.inputData)
         .then((result) {
-          _log.v("Input state handled: $result");
-          if (result is LNURLPageResult && result.protocol != null) {
-            final context = contextProvider?.getBuildContext();
-            if (context != null) {
-              handleLNURLPageResult(context, result);
-            } else {
-              _log.v("Skipping handling of result: $result because context is null");
-            }
-          }
+          handleResult(result);
         })
         .whenComplete(() => _handlingRequest = false)
         .onError((error, _) {
@@ -92,6 +84,18 @@ class InputHandler extends Handler {
         });
   }
 
+  void handleResult(result) {
+    _log.v("Input state handled: $result");
+    if (result is LNURLPageResult && result.protocol != null) {
+      final context = contextProvider?.getBuildContext();
+      if (context != null) {
+        handleLNURLPageResult(context, result);
+      } else {
+        _log.v("Skipping handling of result: $result because context is null");
+      }
+    }
+  }
+
   Future handleInputData(dynamic parsedInput) async {
     _log.v("handle input $parsedInput");
     final context = contextProvider?.getBuildContext();
@@ -110,6 +114,8 @@ class InputHandler extends Handler {
     } else if (parsedInput is InputType_NodeId) {
       return handleNodeID(context, parsedInput.nodeId);
     }
+    // Input wasn't handled
+    return false;
   }
 
   Future handleInvoice(BuildContext context, Invoice invoice) async {

lib/routes/home/home_page.dart

@@ -34,17 +34,18 @@ class HomeState extends State<Home> with AutoLockMixin, HandlerContextProvider {
   final GlobalKey firstPaymentItemKey = GlobalKey();
   final ScrollController scrollController = ScrollController();
   final handlers = <Handler>[];
+  late final InputHandler inputHandler = InputHandler(
+    firstPaymentItemKey,
+    scrollController,
+    _scaffoldKey,
+  );
 
   @override
   void initState() {
     super.initState();
     SchedulerBinding.instance.addPostFrameCallback((_) {
       handlers.addAll([
-        InputHandler(
-          firstPaymentItemKey,
-          scrollController,
-          _scaffoldKey,
-        ),
+        inputHandler,
         ConnectivityHandler(),
         PaymentResultHandler(),
       ]);
@@ -89,7 +90,10 @@ class HomeState extends State<Home> with AutoLockMixin, HandlerContextProvider {
             drawerDragStartBehavior: DragStartBehavior.down,
             drawerEdgeDragWidth: mediaSize.width,
             drawer: HomeDrawer(key: _drawerKey),
-            bottomNavigationBar: BottomActionsBar(firstPaymentItemKey),
+            bottomNavigationBar: BottomActionsBar(
+              firstPaymentItemKey,
+              inputHandler,
+            ),
             floatingActionButton: QrActionButton(firstPaymentItemKey),
             floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
             body: _drawerKey.currentState?.screen() ?? AccountPage(firstPaymentItemKey, scrollController),

lib/routes/home/widgets/bottom_actions_bar/bottom_actions_bar.dart

@@ -2,6 +2,7 @@ import 'package:auto_size_text/auto_size_text.dart';
 import 'package:breez_translations/breez_translations_locales.dart';
 import 'package:c_breez/bloc/account/account_bloc.dart';
 import 'package:c_breez/bloc/account/account_state.dart';
+import 'package:c_breez/handlers/input_handler.dart';
 import 'package:c_breez/routes/home/widgets/bottom_actions_bar/receive_options_bottom_sheet.dart';
 import 'package:c_breez/routes/home/widgets/bottom_actions_bar/send_options_bottom_sheet.dart';
 import 'package:flutter/material.dart';
@@ -11,9 +12,11 @@ import 'bottom_action_item.dart';
 
 class BottomActionsBar extends StatelessWidget {
   final GlobalKey firstPaymentItemKey;
+  final InputHandler inputHandler;
 
   const BottomActionsBar(
-    this.firstPaymentItemKey, {
+    this.firstPaymentItemKey,
+    this.inputHandler, {
     Key? key,
   }) : super(key: key);
 
@@ -31,6 +34,7 @@ class BottomActionsBar extends StatelessWidget {
             children: [
               SendOptions(
                 firstPaymentItemKey: firstPaymentItemKey,
+                inputHandler: inputHandler,
                 actionsGroup: actionsGroup,
               ),
               Container(width: 64),
@@ -49,11 +53,13 @@ class BottomActionsBar extends StatelessWidget {
 
 class SendOptions extends StatelessWidget {
   final GlobalKey<State<StatefulWidget>> firstPaymentItemKey;
+  final InputHandler inputHandler;
   final AutoSizeGroup actionsGroup;
 
   const SendOptions({
     Key? key,
     required this.firstPaymentItemKey,
+    required this.inputHandler,
     required this.actionsGroup,
   }) : super(key: key);
 
@@ -67,6 +73,7 @@ class SendOptions extends StatelessWidget {
         builder: (context) {
           return SendOptionsBottomSheet(
             firstPaymentItemKey: firstPaymentItemKey,
+            inputHandler: inputHandler,
           );
         },
       ),

lib/routes/home/widgets/bottom_actions_bar/send_options_bottom_sheet.dart

@@ -4,6 +4,7 @@ import 'package:c_breez/bloc/account/account_bloc.dart';
 import 'package:c_breez/bloc/account/account_state.dart';
 import 'package:c_breez/bloc/input/input_bloc.dart';
 import 'package:c_breez/bloc/input/input_state.dart';
+import 'package:c_breez/handlers/input_handler.dart';
 import 'package:c_breez/routes/home/widgets/bottom_actions_bar/bottom_action_item_image.dart';
 import 'package:c_breez/routes/home/widgets/bottom_actions_bar/enter_payment_info_dialog.dart';
 import 'package:c_breez/routes/spontaneous_payment/spontaneous_payment_page.dart';
@@ -18,8 +19,13 @@ final _log = FimberLog("SendOptionsBottomSheet");
 
 class SendOptionsBottomSheet extends StatelessWidget {
   final GlobalKey firstPaymentItemKey;
+  final InputHandler inputHandler;
 
-  const SendOptionsBottomSheet({super.key, required this.firstPaymentItemKey});
+  const SendOptionsBottomSheet({
+    super.key,
+    required this.firstPaymentItemKey,
+    required this.inputHandler,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -77,31 +83,32 @@ class SendOptionsBottomSheet extends StatelessWidget {
     );
   }
 
+  /// This documentation is for clarification purposes.
+  ///
+  /// Even though this function is named paste tapped it assumes that the
+  /// latest inputData on InputBloc's InputState comes from device's clipboard stream.
+  /// Which is a good assumption because otherwise that inputData would've been handled.
   void _pasteTapped(
     BuildContext context,
     dynamic inputData,
     GlobalKey firstPaymentItemKey,
   ) async {
+    // Close bottom sheet
     Navigator.of(context).pop();
-    if (inputData is InputType_NodeId) {
-      _log.v("Input data is of type InputType_NodeId, pushing SpontaneousPaymentPage");
-      Navigator.of(context).push(
-        FadeInRoute(
-          builder: (_) => SpontaneousPaymentPage(
-            inputData.nodeId,
-            firstPaymentItemKey,
-          ),
-        ),
-      );
-    } else {
-      _log.v("Input data is $inputData, showing EnterPaymentInfoDialog");
-      await showDialog(
-        useRootNavigator: false,
-        context: context,
-        barrierDismissible: false,
-        builder: (_) => EnterPaymentInfoDialog(paymentItemKey: firstPaymentItemKey),
-      );
-    }
+    // and handle input data
+    inputHandler.handleInputData(inputData).then((result) async {
+      // If input data can't be handled(unsupported input type, empty device clipboard) display EnterPaymentInfoDialog
+      if (result == false) {
+        await showDialog(
+          useRootNavigator: false,
+          context: context,
+          barrierDismissible: false,
+          builder: (_) => EnterPaymentInfoDialog(paymentItemKey: firstPaymentItemKey),
+        );
+      } else {
+        inputHandler.handleResult(result);
+      }
+    });
   }
 
   void _push(BuildContext context, String route, {Object? arguments}) {