import 'dart:async'; import 'package:decimal/decimal.dart'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; import 'package:flutter_riverpod/flutter_riverpod.dart'; import 'package:flutter_svg/flutter_svg.dart'; import 'package:stackwallet/models/send_view_auto_fill_data.dart'; import 'package:stackwallet/pages/address_book_views/address_book_view.dart'; import 'package:stackwallet/pages/send_view/confirm_transaction_view.dart'; import 'package:stackwallet/pages/send_view/sub_widgets/building_transaction_dialog.dart'; import 'package:stackwallet/pages/send_view/sub_widgets/transaction_fee_selection_sheet.dart'; import 'package:stackwallet/providers/providers.dart'; import 'package:stackwallet/providers/ui/fee_rate_type_state_provider.dart'; import 'package:stackwallet/providers/ui/preview_tx_button_state_provider.dart'; import 'package:stackwallet/route_generator.dart'; import 'package:stackwallet/services/coins/manager.dart'; import 'package:stackwallet/utilities/address_utils.dart'; import 'package:stackwallet/utilities/assets.dart'; import 'package:stackwallet/utilities/barcode_scanner_interface.dart'; import 'package:stackwallet/utilities/cfcolors.dart'; import 'package:stackwallet/utilities/clipboard_interface.dart'; import 'package:stackwallet/utilities/constants.dart'; import 'package:stackwallet/utilities/enums/coin_enum.dart'; import 'package:stackwallet/utilities/enums/fee_rate_type_enum.dart'; import 'package:stackwallet/utilities/format.dart'; import 'package:stackwallet/utilities/logger.dart'; import 'package:stackwallet/utilities/text_styles.dart'; import 'package:stackwallet/widgets/animated_text.dart'; import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart'; import 'package:stackwallet/widgets/custom_buttons/blue_text_button.dart'; import 'package:stackwallet/widgets/icon_widgets/addressbook_icon.dart'; import 'package:stackwallet/widgets/icon_widgets/clipboard_icon.dart'; import 'package:stackwallet/widgets/icon_widgets/qrcode_icon.dart'; import 'package:stackwallet/widgets/icon_widgets/x_icon.dart'; import 'package:stackwallet/widgets/stack_dialog.dart'; import 'package:stackwallet/widgets/stack_text_field.dart'; import 'package:stackwallet/widgets/textfield_icon_button.dart'; class SendView extends ConsumerStatefulWidget { const SendView({ Key? key, required this.walletId, required this.coin, this.autoFillData, this.clipboard = const ClipboardWrapper(), this.barcodeScanner = const BarcodeScannerWrapper(), }) : super(key: key); static const String routeName = "/sendView"; final String walletId; final Coin coin; final SendViewAutoFillData? autoFillData; final ClipboardInterface clipboard; final BarcodeScannerInterface barcodeScanner; @override ConsumerState createState() => _SendViewState(); } class _SendViewState extends ConsumerState { late final String walletId; late final Coin coin; late final ClipboardInterface clipboard; late final BarcodeScannerInterface scanner; late TextEditingController sendToController; late TextEditingController cryptoAmountController; late TextEditingController baseAmountController; late TextEditingController noteController; late TextEditingController feeController; late final SendViewAutoFillData? _data; final _addressFocusNode = FocusNode(); final _noteFocusNode = FocusNode(); final _cryptoFocus = FocusNode(); final _baseFocus = FocusNode(); Decimal? _amountToSend; Decimal? _cachedAmountToSend; String? _address; bool _addressToggleFlag = false; bool _cryptoAmountChangeLock = false; late VoidCallback onCryptoAmountChanged; Decimal? _cachedBalance; void _cryptoAmountChanged() async { if (!_cryptoAmountChangeLock) { final String cryptoAmount = cryptoAmountController.text; if (cryptoAmount.isNotEmpty && cryptoAmount != "." && cryptoAmount != ",") { _amountToSend = cryptoAmount.contains(",") ? Decimal.parse(cryptoAmount.replaceFirst(",", ".")) : Decimal.parse(cryptoAmount); if (_cachedAmountToSend != null && _cachedAmountToSend == _amountToSend) { return; } _cachedAmountToSend = _amountToSend; Logging.instance.log("it changed $_amountToSend $_cachedAmountToSend", level: LogLevel.Info); final price = ref.read(priceAnd24hChangeNotifierProvider).getPrice(coin).item1; if (price > Decimal.zero) { final String fiatAmountString = Format.localizedStringAsFixed( value: _amountToSend! * price, locale: ref.read(localeServiceChangeNotifierProvider).locale, decimalPlaces: 2, ); baseAmountController.text = fiatAmountString; } } else { _amountToSend = null; baseAmountController.text = ""; } _updatePreviewButtonState(_address, _amountToSend); // if (_amountToSend == null) { // setState(() { // _calculateFeesFuture = calculateFees(0); // }); // } else { // setState(() { // _calculateFeesFuture = // calculateFees(Format.decimalAmountToSatoshis(_amountToSend!)); // }); // } } } String? _updateInvalidAddressText(String address, Manager manager) { if (_data != null && _data!.contactLabel == address) { return null; } if (address.isNotEmpty && !manager.validateAddress(address)) { return "Invalid address"; } return null; } void _updatePreviewButtonState(String? address, Decimal? amount) { final isValidAddress = ref .read(walletsChangeNotifierProvider) .getManager(walletId) .validateAddress(address ?? ""); ref.read(previewTxButtonStateProvider.state).state = (isValidAddress && amount != null && amount > Decimal.zero); } late Future _calculateFeesFuture; Map cachedFees = {}; Future calculateFees(int amount) async { if (amount <= 0) { return "0"; } if (cachedFees[amount] != null) { return cachedFees[amount]!; } final manager = ref.read(walletsChangeNotifierProvider).getManager(walletId); final feeObject = await manager.fees; late final int feeRate; switch (ref.read(feeRateTypeStateProvider.state).state) { case FeeRateType.fast: feeRate = feeObject.fast; break; case FeeRateType.average: feeRate = feeObject.medium; break; case FeeRateType.slow: feeRate = feeObject.slow; break; } final fee = await manager.estimateFeeFor(amount, feeRate); cachedFees[amount] = Format.satoshisToAmount(fee).toStringAsFixed(Constants.decimalPlaces); return cachedFees[amount]!; } @override void initState() { ref.refresh(feeSheetSessionCacheProvider); _calculateFeesFuture = calculateFees(0); _data = widget.autoFillData; walletId = widget.walletId; coin = widget.coin; clipboard = widget.clipboard; scanner = widget.barcodeScanner; sendToController = TextEditingController(); cryptoAmountController = TextEditingController(); baseAmountController = TextEditingController(); noteController = TextEditingController(); feeController = TextEditingController(); onCryptoAmountChanged = _cryptoAmountChanged; cryptoAmountController.addListener(onCryptoAmountChanged); if (_data != null) { if (_data!.amount != null) { cryptoAmountController.text = _data!.amount!.toString(); } sendToController.text = _data!.contactLabel; _address = _data!.address; _addressToggleFlag = true; } _cryptoFocus.addListener(() { if (!_cryptoFocus.hasFocus && !_baseFocus.hasFocus) { if (_amountToSend == null) { setState(() { _calculateFeesFuture = calculateFees(0); }); } else { setState(() { _calculateFeesFuture = calculateFees(Format.decimalAmountToSatoshis(_amountToSend!)); }); } } }); _baseFocus.addListener(() { if (!_cryptoFocus.hasFocus && !_baseFocus.hasFocus) { if (_amountToSend == null) { setState(() { _calculateFeesFuture = calculateFees(0); }); } else { setState(() { _calculateFeesFuture = calculateFees(Format.decimalAmountToSatoshis(_amountToSend!)); }); } } }); super.initState(); } @override void dispose() { cryptoAmountController.removeListener(onCryptoAmountChanged); sendToController.dispose(); cryptoAmountController.dispose(); baseAmountController.dispose(); noteController.dispose(); feeController.dispose(); _noteFocusNode.dispose(); _addressFocusNode.dispose(); _cryptoFocus.dispose(); _baseFocus.dispose(); super.dispose(); } @override Widget build(BuildContext context) { debugPrint("BUILD: $runtimeType"); final provider = ref.watch(walletsChangeNotifierProvider .select((value) => value.getManagerProvider(walletId))); final String locale = ref.watch( localeServiceChangeNotifierProvider.select((value) => value.locale)); return Scaffold( backgroundColor: CFColors.almostWhite, appBar: AppBar( leading: AppBarBackButton( onPressed: () async { if (FocusScope.of(context).hasFocus) { FocusScope.of(context).unfocus(); await Future.delayed(const Duration(milliseconds: 50)); } if (mounted) { Navigator.of(context).pop(); } }, ), title: Text( "Send ${coin.ticker}", style: STextStyles.navBarTitle, ), ), body: LayoutBuilder( builder: (builderContext, constraints) { return Padding( padding: const EdgeInsets.only( left: 12, top: 12, right: 12, ), child: SingleChildScrollView( child: ConstrainedBox( constraints: BoxConstraints( // subtract top and bottom padding set in parent minHeight: constraints.maxHeight - 24, ), child: IntrinsicHeight( child: Padding( padding: const EdgeInsets.symmetric(horizontal: 4), child: Column( crossAxisAlignment: CrossAxisAlignment.stretch, children: [ Container( decoration: BoxDecoration( color: CFColors.white, borderRadius: BorderRadius.circular( Constants.size.circularBorderRadius, ), ), child: Padding( padding: const EdgeInsets.all(12.0), child: Row( children: [ SvgPicture.asset( Assets.svg.iconFor(coin: coin), width: 18, height: 18, ), const SizedBox( width: 6, ), Text( ref.watch(provider .select((value) => value.walletName)), style: STextStyles.titleBold12, ), const Spacer(), FutureBuilder( future: ref.watch(provider.select( (value) => value.availableBalance)), builder: (_, AsyncSnapshot snapshot) { if (snapshot.connectionState == ConnectionState.done && snapshot.hasData) { _cachedBalance = snapshot.data!; } if (_cachedBalance != null) { return GestureDetector( onTap: () { cryptoAmountController.text = _cachedBalance!.toStringAsFixed( Constants.decimalPlaces); }, child: Container( color: Colors.transparent, child: Column( crossAxisAlignment: CrossAxisAlignment.end, children: [ Text( "${Format.localizedStringAsFixed( value: _cachedBalance!, locale: locale, decimalPlaces: 8, )} ${coin.ticker}", style: STextStyles.titleBold12 .copyWith( fontSize: 10, ), textAlign: TextAlign.right, ), Text( "${Format.localizedStringAsFixed( value: _cachedBalance! * ref.watch( priceAnd24hChangeNotifierProvider .select((value) => value .getPrice( coin) .item1)), locale: locale, decimalPlaces: 2, )} ${ref.watch(prefsChangeNotifierProvider.select((value) => value.currency))}", style: STextStyles.titleBold12 .copyWith( fontSize: 8, fontWeight: FontWeight.w400, ), textAlign: TextAlign.right, ) ], ), ), ); } else { return Column( crossAxisAlignment: CrossAxisAlignment.end, children: [ AnimatedText( stringsToLoopThrough: const [ "Loading balance ", "Loading balance. ", "Loading balance.. ", "Loading balance...", ], style: STextStyles.itemSubtitle .copyWith( fontSize: 10, ), ), AnimatedText( stringsToLoopThrough: const [ "Loading balance ", "Loading balance. ", "Loading balance.. ", "Loading balance...", ], style: STextStyles.itemSubtitle .copyWith( fontSize: 8, ), ) ], ); } }, ), ], ), ), ), const SizedBox( height: 16, ), Text( "Send to", style: STextStyles.smallMed12, textAlign: TextAlign.left, ), const SizedBox( height: 8, ), ClipRRect( borderRadius: BorderRadius.circular( Constants.size.circularBorderRadius, ), child: TextField( key: const Key("sendViewAddressFieldKey"), controller: sendToController, readOnly: false, autocorrect: false, enableSuggestions: false, // inputFormatters: [ // FilteringTextInputFormatter.allow( // RegExp("[a-zA-Z0-9]{34}")), // ], toolbarOptions: const ToolbarOptions( copy: false, cut: false, paste: true, selectAll: false, ), onChanged: (newValue) { _address = newValue; _updatePreviewButtonState( _address, _amountToSend); setState(() { _addressToggleFlag = newValue.isNotEmpty; }); }, focusNode: _addressFocusNode, style: STextStyles.field, decoration: standardInputDecoration( "Enter ${coin.ticker} address", _addressFocusNode, ).copyWith( contentPadding: const EdgeInsets.only( left: 16, top: 6, bottom: 8, right: 5, ), suffixIcon: Padding( padding: sendToController.text.isEmpty ? const EdgeInsets.only(right: 8) : const EdgeInsets.only(right: 0), child: UnconstrainedBox( child: Row( mainAxisAlignment: MainAxisAlignment.spaceAround, children: [ _addressToggleFlag ? TextFieldIconButton( key: const Key( "sendViewClearAddressFieldButtonKey"), onTap: () { sendToController.text = ""; _address = ""; _updatePreviewButtonState( _address, _amountToSend); setState(() { _addressToggleFlag = false; }); }, child: const XIcon(), ) : TextFieldIconButton( key: const Key( "sendViewPasteAddressFieldButtonKey"), onTap: () async { final ClipboardData? data = await clipboard.getData( Clipboard.kTextPlain); if (data?.text != null && data!.text!.isNotEmpty) { String content = data.text!.trim(); if (content.contains("\n")) { content = content.substring( 0, content.indexOf("\n")); } sendToController.text = content; _address = content; _updatePreviewButtonState( _address, _amountToSend); setState(() { _addressToggleFlag = sendToController .text.isNotEmpty; }); } }, child: sendToController.text.isEmpty ? const ClipboardIcon() : const XIcon(), ), if (sendToController.text.isEmpty) TextFieldIconButton( key: const Key( "sendViewAddressBookButtonKey"), onTap: () { Navigator.of(context).pushNamed( AddressBookView.routeName, arguments: widget.coin, ); }, child: const AddressBookIcon(), ), if (sendToController.text.isEmpty) TextFieldIconButton( key: const Key( "sendViewScanQrButtonKey"), onTap: () async { try { // ref // .read( // shouldShowLockscreenOnResumeStateProvider // .state) // .state = false; if (FocusScope.of(context) .hasFocus) { FocusScope.of(context) .unfocus(); await Future.delayed( const Duration( milliseconds: 75)); } final qrResult = await scanner.scan(); // Future.delayed( // const Duration(seconds: 2), // () => ref // .read( // shouldShowLockscreenOnResumeStateProvider // .state) // .state = true, // ); Logging.instance.log( "qrResult content: ${qrResult.rawContent}", level: LogLevel.Info); final results = AddressUtils.parseUri( qrResult.rawContent); Logging.instance.log( "qrResult parsed: $results", level: LogLevel.Info); if (results.isNotEmpty && results["scheme"] == coin.uriScheme) { // auto fill address _address = results["address"] ?? ""; sendToController.text = _address!; // autofill notes field if (results["message"] != null) { noteController.text = results["message"]!; } else if (results["label"] != null) { noteController.text = results["label"]!; } // autofill amount field if (results["amount"] != null) { final amount = Decimal.parse( results["amount"]!); cryptoAmountController.text = Format .localizedStringAsFixed( value: amount, locale: ref .read( localeServiceChangeNotifierProvider) .locale, decimalPlaces: Constants.decimalPlaces, ); amount.toString(); _amountToSend = amount; } _updatePreviewButtonState( _address, _amountToSend); setState(() { _addressToggleFlag = sendToController .text.isNotEmpty; }); // now check for non standard encoded basic address } else if (ref .read( walletsChangeNotifierProvider) .getManager(walletId) .validateAddress( qrResult.rawContent)) { _address = qrResult.rawContent; sendToController.text = _address ?? ""; _updatePreviewButtonState( _address, _amountToSend); setState(() { _addressToggleFlag = sendToController .text.isNotEmpty; }); } } on PlatformException catch (e, s) { // ref // .read( // shouldShowLockscreenOnResumeStateProvider // .state) // .state = true; // here we ignore the exception caused by not giving permission // to use the camera to scan a qr code Logging.instance.log( "Failed to get camera permissions while trying to scan qr code in SendView: $e\n$s", level: LogLevel.Warning); } }, child: const QrCodeIcon(), ) ], ), ), ), ), ), ), Builder( builder: (_) { final error = _updateInvalidAddressText( _address ?? "", ref .read(walletsChangeNotifierProvider) .getManager(walletId), ); if (error == null || error.isEmpty) { return Container(); } else { return Align( alignment: Alignment.topLeft, child: Padding( padding: const EdgeInsets.only( left: 12.0, top: 4.0, ), child: Text( error, textAlign: TextAlign.left, style: STextStyles.label.copyWith( color: CFColors.notificationRedForeground, ), ), ), ); } }, ), const SizedBox( height: 12, ), Row( mainAxisAlignment: MainAxisAlignment.spaceBetween, children: [ Text( "Amount", style: STextStyles.smallMed12, textAlign: TextAlign.left, ), BlueTextButton( text: "Send all ${coin.ticker}", onTap: () async { cryptoAmountController.text = (await ref .read(provider) .availableBalance) .toStringAsFixed(Constants.decimalPlaces); }, ), ], ), const SizedBox( height: 8, ), TextField( key: const Key("amountInputFieldCryptoTextFieldKey"), controller: cryptoAmountController, focusNode: _cryptoFocus, keyboardType: const TextInputType.numberWithOptions( signed: false, decimal: true, ), textAlign: TextAlign.right, inputFormatters: [ // regex to validate a crypto amount with 8 decimal places TextInputFormatter.withFunction((oldValue, newValue) => RegExp(r'^([0-9]*[,.]?[0-9]{0,8}|[,.][0-9]{0,8})$') .hasMatch(newValue.text) ? newValue : oldValue), ], decoration: InputDecoration( contentPadding: const EdgeInsets.only( top: 12, right: 12, ), hintText: "0", hintStyle: STextStyles.fieldLabel.copyWith( fontSize: 14, ), prefixIcon: FittedBox( fit: BoxFit.scaleDown, child: Padding( padding: const EdgeInsets.all(12), child: Text( coin.ticker, style: STextStyles.smallMed14.copyWith( color: CFColors.stackAccent, ), ), ), ), ), ), const SizedBox( height: 8, ), TextField( key: const Key("amountInputFieldFiatTextFieldKey"), controller: baseAmountController, focusNode: _baseFocus, keyboardType: const TextInputType.numberWithOptions( signed: false, decimal: true, ), textAlign: TextAlign.right, inputFormatters: [ // regex to validate a fiat amount with 2 decimal places TextInputFormatter.withFunction((oldValue, newValue) => RegExp(r'^([0-9]*[,.]?[0-9]{0,2}|[,.][0-9]{0,2})$') .hasMatch(newValue.text) ? newValue : oldValue), ], onChanged: (baseAmountString) { if (baseAmountString.isNotEmpty && baseAmountString != "." && baseAmountString != ",") { final baseAmount = baseAmountString.contains(",") ? Decimal.parse( baseAmountString.replaceFirst(",", ".")) : Decimal.parse(baseAmountString); var _price = ref .read(priceAnd24hChangeNotifierProvider) .getPrice(coin) .item1; if (_price == Decimal.zero) { _amountToSend = Decimal.zero; } else { _amountToSend = baseAmount <= Decimal.zero ? Decimal.zero : (baseAmount / _price).toDecimal( scaleOnInfinitePrecision: Constants.decimalPlaces); } if (_cachedAmountToSend != null && _cachedAmountToSend == _amountToSend) { return; } _cachedAmountToSend = _amountToSend; Logging.instance.log( "it changed $_amountToSend $_cachedAmountToSend", level: LogLevel.Info); final amountString = Format.localizedStringAsFixed( value: _amountToSend!, locale: ref .read(localeServiceChangeNotifierProvider) .locale, decimalPlaces: Constants.decimalPlaces, ); _cryptoAmountChangeLock = true; cryptoAmountController.text = amountString; _cryptoAmountChangeLock = false; } else { _amountToSend = Decimal.zero; _cryptoAmountChangeLock = true; cryptoAmountController.text = ""; _cryptoAmountChangeLock = false; } // setState(() { // _calculateFeesFuture = calculateFees( // Format.decimalAmountToSatoshis( // _amountToSend!)); // }); _updatePreviewButtonState(_address, _amountToSend); }, decoration: InputDecoration( contentPadding: const EdgeInsets.only( top: 12, right: 12, ), hintText: "0", hintStyle: STextStyles.fieldLabel.copyWith( fontSize: 14, ), prefixIcon: FittedBox( fit: BoxFit.scaleDown, child: Padding( padding: const EdgeInsets.all(12), child: Text( ref.watch(prefsChangeNotifierProvider .select((value) => value.currency)), style: STextStyles.smallMed14.copyWith( color: CFColors.stackAccent, ), ), ), ), ), ), const SizedBox( height: 12, ), Text( "Note (optional)", style: STextStyles.smallMed12, textAlign: TextAlign.left, ), const SizedBox( height: 8, ), ClipRRect( borderRadius: BorderRadius.circular( Constants.size.circularBorderRadius, ), child: TextField( controller: noteController, focusNode: _noteFocusNode, style: STextStyles.field, onChanged: (_) => setState(() {}), decoration: standardInputDecoration( "Type something...", _noteFocusNode, ).copyWith( suffixIcon: noteController.text.isNotEmpty ? Padding( padding: const EdgeInsets.only(right: 0), child: UnconstrainedBox( child: Row( children: [ TextFieldIconButton( child: const XIcon(), onTap: () async { setState(() { noteController.text = ""; }); }, ), ], ), ), ) : null, ), ), ), const SizedBox( height: 12, ), Text( "Transaction fee (estimated)", style: STextStyles.smallMed12, textAlign: TextAlign.left, ), const SizedBox( height: 8, ), Stack( children: [ TextField( controller: feeController, readOnly: true, textInputAction: TextInputAction.none, ), Padding( padding: const EdgeInsets.symmetric( horizontal: 12, ), child: RawMaterialButton( splashColor: CFColors.splashLight, shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular( Constants.size.circularBorderRadius, ), ), onPressed: () { showModalBottomSheet( backgroundColor: Colors.transparent, context: context, shape: const RoundedRectangleBorder( borderRadius: BorderRadius.vertical( top: Radius.circular(20), ), ), builder: (_) => TransactionFeeSelectionSheet( walletId: walletId, amount: Decimal.tryParse( cryptoAmountController.text) ?? Decimal.zero, ), ); }, child: Row( mainAxisAlignment: MainAxisAlignment.spaceBetween, children: [ Row( children: [ Text( ref .watch(feeRateTypeStateProvider .state) .state .prettyName, style: STextStyles.itemSubtitle12, ), const SizedBox( width: 10, ), FutureBuilder( future: _calculateFeesFuture, builder: (context, snapshot) { if (snapshot.connectionState == ConnectionState.done && snapshot.hasData) { return Text( "~${snapshot.data! as String} ${coin.ticker}", style: STextStyles.itemSubtitle, ); } else { return AnimatedText( stringsToLoopThrough: const [ "Calculating", "Calculating.", "Calculating..", "Calculating...", ], style: STextStyles.itemSubtitle, ); } }, ), ], ), SvgPicture.asset( Assets.svg.chevronDown, width: 8, height: 4, color: CFColors.gray3, ), ], ), ), ) ], ), const Spacer(), const SizedBox( height: 12, ), TextButton( onPressed: ref .watch(previewTxButtonStateProvider.state) .state ? () async { // wait for keyboard to disappear FocusScope.of(context).unfocus(); await Future.delayed( const Duration(milliseconds: 100), ); final manager = ref .read(walletsChangeNotifierProvider) .getManager(walletId); // TODO: remove the need for this!! final bool isOwnAddress = await manager.isOwnAddress(_address!); if (isOwnAddress) { await showDialog( context: context, useSafeArea: false, barrierDismissible: true, builder: (context) { return StackDialog( title: "Transaction failed", message: "Sending to self is currently disabled", rightButton: TextButton( style: Theme.of(context) .textButtonTheme .style ?.copyWith( backgroundColor: MaterialStateProperty.all< Color>( CFColors.buttonGray, ), ), child: Text( "Ok", style: STextStyles.button.copyWith( color: CFColors.stackAccent, ), ), onPressed: () { Navigator.of(context).pop(); }, ), ); }, ); return; } final amount = Format.decimalAmountToSatoshis( _amountToSend!); final availableBalance = Format.decimalAmountToSatoshis( await manager.availableBalance); // confirm send all if (amount == availableBalance) { final bool? shouldSendAll = await showDialog( context: context, useSafeArea: false, barrierDismissible: true, builder: (context) { return StackDialog( title: "Confirm send all", message: "You are about to send your entire balance. Would you like to continue?", leftButton: TextButton( style: Theme.of(context) .textButtonTheme .style ?.copyWith( backgroundColor: MaterialStateProperty.all< Color>( CFColors.buttonGray, ), ), child: Text( "Cancel", style: STextStyles.button.copyWith( color: CFColors.stackAccent, ), ), onPressed: () { Navigator.of(context).pop(false); }, ), rightButton: TextButton( style: Theme.of(context) .textButtonTheme .style ?.copyWith( backgroundColor: MaterialStateProperty.all< Color>( CFColors.stackAccent, ), ), child: Text( "Yes", style: STextStyles.button, ), onPressed: () { Navigator.of(context).pop(true); }, ), ); }, ); if (shouldSendAll == null || shouldSendAll == false) { // cancel preview return; } } try { bool wasCancelled = false; unawaited(showDialog( context: context, useSafeArea: false, barrierDismissible: false, builder: (context) { return BuildingTransactionDialog( onCancel: () { wasCancelled = true; Navigator.of(context).pop(); }, ); }, )); final txData = await manager.prepareSend( address: _address!, satoshiAmount: amount, args: { "feeRate": ref.read(feeRateTypeStateProvider) }, ); if (!wasCancelled && mounted) { // pop building dialog Navigator.of(context).pop(); txData["note"] = noteController.text; txData["address"] = _address; unawaited(Navigator.of(context).push( RouteGenerator.getRoute( shouldUseMaterialRoute: RouteGenerator .useMaterialPageRoute, builder: (_) => ConfirmTransactionView( transactionInfo: txData, walletId: walletId, ), settings: const RouteSettings( name: ConfirmTransactionView .routeName, ), ), )); } } catch (e) { if (mounted) { // pop building dialog Navigator.of(context).pop(); unawaited(showDialog( context: context, useSafeArea: false, barrierDismissible: true, builder: (context) { return StackDialog( title: "Transaction failed", message: e.toString(), rightButton: TextButton( style: Theme.of(context) .textButtonTheme .style ?.copyWith( backgroundColor: MaterialStateProperty .all( CFColors.buttonGray, ), ), child: Text( "Ok", style: STextStyles.button.copyWith( color: CFColors.stackAccent, ), ), onPressed: () { Navigator.of(context).pop(); }, ), ); }, )); } } } : null, style: ref .watch(previewTxButtonStateProvider.state) .state ? Theme.of(context) .textButtonTheme .style ?.copyWith( backgroundColor: MaterialStateProperty.all( CFColors.stackAccent, ), ) : Theme.of(context) .textButtonTheme .style ?.copyWith( backgroundColor: MaterialStateProperty.all( CFColors.stackAccent.withOpacity( 0.25, ), ), ), child: Text( "Preview", style: STextStyles.button, ), ), const SizedBox( height: 4, ), ], ), ), ), ), ), ); }, ), ); } }