mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-09-29 18:01:06 +00:00
1023 lines
34 KiB
Dart
1023 lines
34 KiB
Dart
/*
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* This file is part of Stack Wallet.
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*
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* Copyright (c) 2023 Cypher Stack
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* All Rights Reserved.
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* The code is distributed under GPLv3 license, see LICENSE file for details.
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* Generated by Cypher Stack on 2023-05-26
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*
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*/
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import 'dart:async';
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import 'package:decimal/decimal.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:flutter_svg/flutter_svg.dart';
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import 'package:flutter_svg/svg.dart';
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import 'package:isar/isar.dart';
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import 'package:stackwallet/models/exchange/aggregate_currency.dart';
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import 'package:stackwallet/models/exchange/incomplete_exchange.dart';
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import 'package:stackwallet/models/exchange/response_objects/estimate.dart';
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import 'package:stackwallet/models/exchange/response_objects/range.dart';
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import 'package:stackwallet/models/isar/exchange_cache/currency.dart';
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import 'package:stackwallet/models/isar/exchange_cache/pair.dart';
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import 'package:stackwallet/models/isar/models/ethereum/eth_contract.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_coin_selection/exchange_currency_selection_view.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_step_views/step_1_view.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_step_views/step_2_view.dart';
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import 'package:stackwallet/pages/exchange_view/sub_widgets/exchange_provider_options.dart';
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import 'package:stackwallet/pages/exchange_view/sub_widgets/rate_type_toggle.dart';
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import 'package:stackwallet/pages_desktop_specific/desktop_exchange/exchange_steps/step_scaffold.dart';
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import 'package:stackwallet/providers/providers.dart';
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import 'package:stackwallet/services/exchange/change_now/change_now_exchange.dart';
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import 'package:stackwallet/services/exchange/exchange.dart';
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import 'package:stackwallet/services/exchange/exchange_data_loading_service.dart';
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import 'package:stackwallet/services/exchange/exchange_response.dart';
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import 'package:stackwallet/services/exchange/majestic_bank/majestic_bank_exchange.dart';
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import 'package:stackwallet/services/exchange/trocador/trocador_exchange.dart';
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import 'package:stackwallet/services/tor_service.dart';
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import 'package:stackwallet/themes/stack_colors.dart';
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import 'package:stackwallet/utilities/amount/amount_unit.dart';
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import 'package:stackwallet/utilities/assets.dart';
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import 'package:stackwallet/utilities/constants.dart';
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import 'package:stackwallet/utilities/enums/coin_enum.dart';
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import 'package:stackwallet/utilities/enums/exchange_rate_type_enum.dart';
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import 'package:stackwallet/utilities/prefs.dart';
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import 'package:stackwallet/utilities/text_styles.dart';
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import 'package:stackwallet/utilities/util.dart';
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import 'package:stackwallet/widgets/conditional_parent.dart';
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import 'package:stackwallet/widgets/custom_loading_overlay.dart';
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import 'package:stackwallet/widgets/desktop/desktop_dialog.dart';
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import 'package:stackwallet/widgets/desktop/desktop_dialog_close_button.dart';
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import 'package:stackwallet/widgets/desktop/primary_button.dart';
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import 'package:stackwallet/widgets/desktop/secondary_button.dart';
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import 'package:stackwallet/widgets/rounded_container.dart';
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import 'package:stackwallet/widgets/rounded_white_container.dart';
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import 'package:stackwallet/widgets/stack_dialog.dart';
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import 'package:stackwallet/widgets/textfields/exchange_textfield.dart';
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import 'package:tuple/tuple.dart';
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import 'package:uuid/uuid.dart';
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class ExchangeForm extends ConsumerStatefulWidget {
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const ExchangeForm({
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Key? key,
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this.walletId,
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this.coin,
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this.contract,
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}) : super(key: key);
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final String? walletId;
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final Coin? coin;
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final EthContract? contract;
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@override
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ConsumerState<ExchangeForm> createState() => _ExchangeFormState();
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}
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class _ExchangeFormState extends ConsumerState<ExchangeForm> {
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late final String? walletId;
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late final Coin? coin;
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late final bool walletInitiated;
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var exchanges = [
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MajesticBankExchange.instance,
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ChangeNowExchange.instance,
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TrocadorExchange.instance,
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];
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late final TextEditingController _sendController;
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late final TextEditingController _receiveController;
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final isDesktop = Util.isDesktop;
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final FocusNode _sendFocusNode = FocusNode();
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final FocusNode _receiveFocusNode = FocusNode();
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bool _swapLock = false;
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// todo: check and adjust this value?
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static const _valueCheckInterval = Duration(milliseconds: 1500);
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Future<T> showUpdatingExchangeRate<T>({
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required Future<T> whileFuture,
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}) async {
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unawaited(
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showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (_) => WillPopScope(
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onWillPop: () async => false,
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child: Container(
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color: Theme.of(context)
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.extension<StackColors>()!
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.overlay
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.withOpacity(0.6),
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child: const CustomLoadingOverlay(
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message: "Updating exchange rate",
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eventBus: null,
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),
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),
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),
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),
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);
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final result = await whileFuture;
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if (mounted) {
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Navigator.of(context, rootNavigator: isDesktop).pop();
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}
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return result;
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}
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Timer? _sendFieldOnChangedTimer;
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void sendFieldOnChanged(String value) {
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if (_sendFocusNode.hasFocus) {
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_sendFieldOnChangedTimer?.cancel();
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_sendFieldOnChangedTimer = Timer(_valueCheckInterval, () async {
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final newFromAmount = _localizedStringToNum(value);
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ref.read(efSendAmountProvider.notifier).state = newFromAmount;
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if (!_swapLock && !ref.read(efReversedProvider)) {
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unawaited(update());
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}
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});
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}
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}
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Timer? _receiveFieldOnChangedTimer;
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void receiveFieldOnChanged(String value) async {
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_receiveFieldOnChangedTimer?.cancel();
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_receiveFieldOnChangedTimer = Timer(_valueCheckInterval, () async {
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final newToAmount = _localizedStringToNum(value);
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ref.read(efReceiveAmountProvider.notifier).state = newToAmount;
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if (!_swapLock && ref.read(efReversedProvider)) {
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unawaited(update());
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}
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});
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}
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Decimal? _localizedStringToNum(String? value) {
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if (value == null) {
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return null;
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}
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return AmountUnit.normal
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.tryParse(
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value,
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locale: ref.read(localeServiceChangeNotifierProvider).locale,
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coin: Coin.bitcoin, // dummy value (not used due to override)
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overrideWithDecimalPlacesFromString: true,
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)
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?.decimal;
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}
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Future<AggregateCurrency> _getAggregateCurrency(Currency currency) async {
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final rateType = ref.read(efRateTypeProvider);
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final currencies = await ExchangeDataLoadingService.instance.isar.currencies
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.filter()
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.group((q) => rateType == ExchangeRateType.fixed
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? q
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.rateTypeEqualTo(SupportedRateType.both)
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.or()
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.rateTypeEqualTo(SupportedRateType.fixed)
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: q
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.rateTypeEqualTo(SupportedRateType.both)
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.or()
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.rateTypeEqualTo(SupportedRateType.estimated))
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.and()
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.tickerEqualTo(
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currency.ticker,
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caseSensitive: false,
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)
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.and()
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.tokenContractEqualTo(currency.tokenContract)
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.findAll();
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final items = [Tuple2(currency.exchangeName, currency)];
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for (final currency in currencies) {
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items.add(Tuple2(currency.exchangeName, currency));
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}
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return AggregateCurrency(exchangeCurrencyPairs: items);
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}
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void selectSendCurrency() async {
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final type = ref.read(efRateTypeProvider);
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final fromTicker = ref.read(efCurrencyPairProvider).send?.ticker ?? "";
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if (walletInitiated) {
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if (widget.contract != null &&
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fromTicker.toLowerCase() == widget.contract!.symbol.toLowerCase()) {
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return;
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}
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if (fromTicker.toLowerCase() == coin!.ticker.toLowerCase()) {
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// do not allow changing away from wallet coin
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return;
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}
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}
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final selectedCurrency = await _showCurrencySelectionSheet(
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willChange: ref.read(efCurrencyPairProvider).send?.ticker,
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willChangeIsSend: true,
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paired: ref.read(efCurrencyPairProvider).receive?.ticker,
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isFixedRate: type == ExchangeRateType.fixed,
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);
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if (selectedCurrency != null) {
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await showUpdatingExchangeRate(
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whileFuture: _getAggregateCurrency(selectedCurrency).then(
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(aggregateSelected) => ref.read(efCurrencyPairProvider).setSend(
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aggregateSelected,
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notifyListeners: true,
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),
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),
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);
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}
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}
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void selectReceiveCurrency() async {
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final toTicker = ref.read(efCurrencyPairProvider).receive?.ticker ?? "";
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if (walletInitiated &&
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toTicker.toLowerCase() == coin!.ticker.toLowerCase()) {
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// do not allow changing away from wallet coin
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return;
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}
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final selectedCurrency = await _showCurrencySelectionSheet(
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willChange: ref.read(efCurrencyPairProvider).receive?.ticker,
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willChangeIsSend: false,
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paired: ref.read(efCurrencyPairProvider).send?.ticker,
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isFixedRate: ref.read(efRateTypeProvider) == ExchangeRateType.fixed,
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);
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if (selectedCurrency != null) {
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await showUpdatingExchangeRate(
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whileFuture: _getAggregateCurrency(selectedCurrency).then(
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(aggregateSelected) => ref.read(efCurrencyPairProvider).setReceive(
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aggregateSelected,
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notifyListeners: true,
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),
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),
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);
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}
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}
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Future<void> _swap() async {
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_swapLock = true;
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_sendFocusNode.unfocus();
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_receiveFocusNode.unfocus();
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final temp = ref.read(efCurrencyPairProvider).send;
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ref.read(efCurrencyPairProvider).setSend(
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ref.read(efCurrencyPairProvider).receive,
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notifyListeners: true,
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);
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ref.read(efCurrencyPairProvider).setReceive(
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temp,
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notifyListeners: true,
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);
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// final reversed = ref.read(efReversedProvider);
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final amount = ref.read(efSendAmountProvider);
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ref.read(efSendAmountProvider.notifier).state =
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ref.read(efReceiveAmountProvider);
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ref.read(efReceiveAmountProvider.notifier).state = amount;
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unawaited(update());
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_swapLock = false;
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}
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Future<Currency?> _showCurrencySelectionSheet({
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required String? willChange,
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required String? paired,
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required bool isFixedRate,
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required bool willChangeIsSend,
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}) async {
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_sendFocusNode.unfocus();
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_receiveFocusNode.unfocus();
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final result = isDesktop
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? await showDialog<Currency?>(
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context: context,
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builder: (context) {
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return DesktopDialog(
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maxHeight: 700,
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maxWidth: 580,
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child: Column(
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Padding(
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padding: const EdgeInsets.only(
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left: 32,
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),
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child: Text(
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"Choose a coin to exchange",
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style: STextStyles.desktopH3(context),
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),
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),
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const DesktopDialogCloseButton(),
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],
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),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.only(
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left: 32,
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right: 32,
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bottom: 32,
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),
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child: Row(
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children: [
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Expanded(
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child: RoundedWhiteContainer(
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padding: const EdgeInsets.all(16),
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borderColor: Theme.of(context)
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.extension<StackColors>()!
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.background,
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child: ExchangeCurrencySelectionView(
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willChangeTicker: willChange,
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pairedTicker: paired,
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isFixedRate: isFixedRate,
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willChangeIsSend: willChangeIsSend,
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),
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),
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),
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],
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),
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),
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),
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],
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),
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);
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})
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: await Navigator.of(context).push(
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MaterialPageRoute<dynamic>(
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builder: (_) => ExchangeCurrencySelectionView(
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willChangeTicker: willChange,
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pairedTicker: paired,
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isFixedRate: isFixedRate,
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willChangeIsSend: willChangeIsSend,
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),
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),
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);
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if (mounted && result is Currency) {
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return result;
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} else {
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return null;
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}
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}
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void onRateTypeChanged(ExchangeRateType newType) {
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_receiveFocusNode.unfocus();
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_sendFocusNode.unfocus();
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ref.read(efRateTypeProvider.notifier).state = newType;
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update();
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}
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void onExchangePressed() async {
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final rateType = ref.read(efRateTypeProvider);
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final fromTicker = ref.read(efCurrencyPairProvider).send?.ticker ?? "";
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final toTicker = ref.read(efCurrencyPairProvider).receive?.ticker ?? "";
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final estimate = ref.read(efEstimateProvider)!;
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final sendAmount = ref.read(efSendAmountProvider)!;
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if (rateType == ExchangeRateType.fixed && toTicker.toUpperCase() == "WOW") {
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await showDialog<void>(
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context: context,
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builder: (context) => const StackOkDialog(
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title: "WOW error",
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message:
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"Wownero is temporarily disabled as a receiving currency for fixed rate trades due to network issues",
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),
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);
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return;
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}
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String rate;
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final amountToSend =
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estimate.reversed ? estimate.estimatedAmount : sendAmount;
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final amountToReceive = estimate.reversed
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? ref.read(efReceiveAmountProvider)!
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: estimate.estimatedAmount;
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switch (rateType) {
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case ExchangeRateType.estimated:
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rate =
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"1 ${fromTicker.toUpperCase()} ~${(amountToReceive / sendAmount).toDecimal(scaleOnInfinitePrecision: 8).toStringAsFixed(8)} ${toTicker.toUpperCase()}";
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break;
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case ExchangeRateType.fixed:
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bool? shouldCancel;
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if (estimate.warningMessage != null &&
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estimate.warningMessage!.isNotEmpty) {
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shouldCancel = await showDialog<bool?>(
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context: context,
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barrierDismissible: true,
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builder: (_) {
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if (isDesktop) {
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return DesktopDialog(
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maxWidth: 500,
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maxHeight: 300,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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"Failed to update trade estimate",
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style: STextStyles.desktopH3(context),
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),
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const DesktopDialogCloseButton(),
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],
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),
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const Spacer(),
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Text(
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estimate.warningMessage!,
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style: STextStyles.desktopTextSmall(context),
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),
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const Spacer(),
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Text(
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"Do you want to attempt trade anyways?",
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style: STextStyles.desktopTextSmall(context),
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),
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const Spacer(
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flex: 2,
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),
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Row(
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children: [
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Expanded(
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child: SecondaryButton(
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label: "Cancel",
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buttonHeight: ButtonHeight.l,
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onPressed: () => Navigator.of(
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context,
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rootNavigator: true,
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).pop(true),
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),
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),
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const SizedBox(
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width: 16,
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),
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Expanded(
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child: PrimaryButton(
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label: "Attempt",
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buttonHeight: ButtonHeight.l,
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onPressed: () => Navigator.of(
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context,
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rootNavigator: true,
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).pop(false),
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),
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),
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],
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)
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],
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),
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);
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} else {
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return StackDialog(
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title: "Failed to update trade estimate",
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message:
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"${estimate.warningMessage!}\n\nDo you want to attempt trade anyways?",
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leftButton: TextButton(
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style: Theme.of(context)
|
|
.extension<StackColors>()!
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.getSecondaryEnabledButtonStyle(context),
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child: Text(
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"Cancel",
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style: STextStyles.itemSubtitle12(context),
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),
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onPressed: () {
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// notify return to cancel
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Navigator.of(context).pop(true);
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},
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),
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rightButton: TextButton(
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style: Theme.of(context)
|
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.extension<StackColors>()!
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.getPrimaryEnabledButtonStyle(context),
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child: Text(
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"Attempt",
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style: STextStyles.button(context),
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),
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onPressed: () {
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// continue and try to attempt trade
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Navigator.of(context).pop(false);
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},
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),
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);
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}
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},
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);
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}
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|
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if (shouldCancel is bool && shouldCancel) {
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return;
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}
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rate =
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"1 ${fromTicker.toUpperCase()} ~${(amountToReceive / amountToSend).toDecimal(
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scaleOnInfinitePrecision: 12,
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).toStringAsFixed(8)} ${toTicker.toUpperCase()}";
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break;
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}
|
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|
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final model = IncompleteExchangeModel(
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sendTicker: fromTicker.toUpperCase(),
|
|
receiveTicker: toTicker.toUpperCase(),
|
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rateInfo: rate,
|
|
sendAmount: amountToSend,
|
|
receiveAmount: amountToReceive,
|
|
rateType: rateType,
|
|
estimate: estimate,
|
|
reversed: estimate.reversed,
|
|
walletInitiated: walletInitiated,
|
|
);
|
|
|
|
if (mounted) {
|
|
if (walletInitiated) {
|
|
ref.read(exchangeSendFromWalletIdStateProvider.state).state =
|
|
Tuple2(walletId!, coin!);
|
|
if (isDesktop) {
|
|
ref.read(ssss.state).state = model;
|
|
await showDialog<void>(
|
|
context: context,
|
|
barrierDismissible: false,
|
|
builder: (context) {
|
|
return const DesktopDialog(
|
|
maxWidth: 720,
|
|
maxHeight: double.infinity,
|
|
child: StepScaffold(
|
|
initialStep: 2,
|
|
),
|
|
);
|
|
},
|
|
);
|
|
} else {
|
|
unawaited(
|
|
Navigator.of(context).pushNamed(
|
|
Step2View.routeName,
|
|
arguments: model,
|
|
),
|
|
);
|
|
}
|
|
} else {
|
|
ref.read(exchangeSendFromWalletIdStateProvider.state).state = null;
|
|
|
|
if (isDesktop) {
|
|
ref.read(ssss.state).state = model;
|
|
await showDialog<void>(
|
|
context: context,
|
|
barrierDismissible: false,
|
|
builder: (context) {
|
|
return const DesktopDialog(
|
|
maxWidth: 720,
|
|
maxHeight: double.infinity,
|
|
child: StepScaffold(
|
|
initialStep: 1,
|
|
),
|
|
);
|
|
},
|
|
);
|
|
} else {
|
|
unawaited(
|
|
Navigator.of(context).pushNamed(
|
|
Step1View.routeName,
|
|
arguments: model,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool isWalletCoin(Coin? coin, bool isSend) {
|
|
if (coin == null) {
|
|
return false;
|
|
}
|
|
|
|
String? ticker = isSend
|
|
? ref.read(efCurrencyPairProvider).send?.ticker
|
|
: ref.read(efCurrencyPairProvider).receive?.ticker;
|
|
|
|
if (ticker == null) {
|
|
return false;
|
|
}
|
|
|
|
return coin.ticker.toUpperCase() == ticker.toUpperCase();
|
|
}
|
|
|
|
Future<void> update() async {
|
|
final uuid = const Uuid().v1();
|
|
_latestUuid = uuid;
|
|
_addUpdate(uuid);
|
|
for (final exchange in exchanges) {
|
|
ref.read(efEstimatesListProvider(exchange.name).notifier).state = null;
|
|
}
|
|
|
|
final reversed = ref.read(efReversedProvider);
|
|
final amount = reversed
|
|
? ref.read(efReceiveAmountProvider)
|
|
: ref.read(efSendAmountProvider);
|
|
|
|
final pair = ref.read(efCurrencyPairProvider);
|
|
if (amount == null ||
|
|
amount <= Decimal.zero ||
|
|
pair.send == null ||
|
|
pair.receive == null) {
|
|
_removeUpdate(uuid);
|
|
return;
|
|
}
|
|
final rateType = ref.read(efRateTypeProvider);
|
|
final Map<String, Tuple2<ExchangeResponse<List<Estimate>>, Range?>>
|
|
results = {};
|
|
|
|
for (final exchange in exchanges) {
|
|
final sendCurrency = pair.send?.forExchange(exchange.name);
|
|
final receiveCurrency = pair.receive?.forExchange(exchange.name);
|
|
|
|
if (sendCurrency != null && receiveCurrency != null) {
|
|
final rangeResponse = await exchange.getRange(
|
|
reversed ? receiveCurrency.ticker : sendCurrency.ticker,
|
|
reversed ? sendCurrency.ticker : receiveCurrency.ticker,
|
|
rateType == ExchangeRateType.fixed,
|
|
);
|
|
|
|
final estimateResponse = await exchange.getEstimates(
|
|
sendCurrency.ticker,
|
|
receiveCurrency.ticker,
|
|
amount,
|
|
rateType == ExchangeRateType.fixed,
|
|
reversed,
|
|
);
|
|
|
|
results.addAll(
|
|
{
|
|
exchange.name: Tuple2(
|
|
estimateResponse,
|
|
rangeResponse.value,
|
|
),
|
|
},
|
|
);
|
|
}
|
|
}
|
|
|
|
for (final exchange in exchanges) {
|
|
if (uuid == _latestUuid) {
|
|
ref.read(efEstimatesListProvider(exchange.name).notifier).state =
|
|
results[exchange.name];
|
|
}
|
|
}
|
|
|
|
_removeUpdate(uuid);
|
|
}
|
|
|
|
String? _latestUuid;
|
|
final Set<String> _uuids = {};
|
|
|
|
void _addUpdate(String uuid) {
|
|
_uuids.add(uuid);
|
|
ref.read(efRefreshingProvider.notifier).state = true;
|
|
}
|
|
|
|
void _removeUpdate(String uuid) {
|
|
_uuids.remove(uuid);
|
|
if (_uuids.isEmpty) {
|
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
|
ref.read(efRefreshingProvider.notifier).state = false;
|
|
});
|
|
}
|
|
}
|
|
|
|
void updateSend(Estimate? estimate) {
|
|
ref.read(efSendAmountProvider.notifier).state = estimate?.estimatedAmount;
|
|
}
|
|
|
|
void updateReceive(Estimate? estimate) {
|
|
ref.read(efReceiveAmountProvider.notifier).state =
|
|
estimate?.estimatedAmount;
|
|
}
|
|
|
|
@override
|
|
void initState() {
|
|
_sendController = TextEditingController();
|
|
_receiveController = TextEditingController();
|
|
|
|
walletId = widget.walletId;
|
|
coin = widget.coin;
|
|
walletInitiated = walletId != null && coin != null;
|
|
|
|
_sendFocusNode.addListener(() {
|
|
if (_sendFocusNode.hasFocus) {
|
|
final reversed = ref.read(efReversedProvider);
|
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
|
ref.read(efReversedProvider.notifier).state = false;
|
|
if (reversed == true) {
|
|
update();
|
|
}
|
|
});
|
|
}
|
|
});
|
|
_receiveFocusNode.addListener(() {
|
|
if (_receiveFocusNode.hasFocus &&
|
|
ref.read(efExchangeProvider).name != ChangeNowExchange.exchangeName) {
|
|
final reversed = ref.read(efReversedProvider);
|
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
|
ref.read(efReversedProvider.notifier).state = true;
|
|
if (reversed != true) {
|
|
update();
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
if (walletInitiated) {
|
|
WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
|
|
ref.read(efSendAmountProvider.notifier).state = null;
|
|
ref.read(efReceiveAmountProvider.notifier).state = null;
|
|
ref.read(efReversedProvider.notifier).state = false;
|
|
ref.read(efRefreshingProvider.notifier).state = false;
|
|
ref.read(efCurrencyPairProvider).setSend(null, notifyListeners: true);
|
|
ref
|
|
.read(efCurrencyPairProvider)
|
|
.setReceive(null, notifyListeners: true);
|
|
ExchangeDataLoadingService.instance
|
|
.getAggregateCurrency(
|
|
widget.contract == null ? coin!.ticker : widget.contract!.symbol,
|
|
ExchangeRateType.estimated,
|
|
widget.contract == null ? null : widget.contract!.address,
|
|
)
|
|
.then((value) {
|
|
if (value != null) {
|
|
ref.read(efCurrencyPairProvider).setSend(
|
|
value,
|
|
notifyListeners: true,
|
|
);
|
|
}
|
|
});
|
|
});
|
|
} else {
|
|
WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
|
|
_sendController.text = ref.read(efSendAmountStringProvider);
|
|
_receiveController.text = ref.read(efReceiveAmountStringProvider);
|
|
});
|
|
}
|
|
|
|
// Instantiate the Tor service.
|
|
torService = TorService.sharedInstance;
|
|
|
|
// Filter exchanges based on Tor support.
|
|
if (Prefs.instance.useTor) {
|
|
exchanges = Exchange.exchangesWithTorSupport;
|
|
}
|
|
|
|
super.initState();
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_receiveController.dispose();
|
|
_sendController.dispose();
|
|
_receiveFocusNode.dispose();
|
|
_sendFocusNode.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
debugPrint("BUILD: $runtimeType");
|
|
|
|
final rateType = ref.watch(efRateTypeProvider);
|
|
|
|
final isEstimated = rateType == ExchangeRateType.estimated;
|
|
|
|
ref.listen(efReceiveAmountStringProvider, (previous, String next) {
|
|
if (!_receiveFocusNode.hasFocus) {
|
|
_receiveController.text = isEstimated && next.isEmpty ? "-" : next;
|
|
// if (_swapLock) {
|
|
_sendController.text = ref.read(efSendAmountStringProvider);
|
|
// }
|
|
|
|
if (_sendFocusNode.hasFocus) {
|
|
_sendController.selection = TextSelection.fromPosition(
|
|
TextPosition(
|
|
offset: _sendController.text.length,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
});
|
|
ref.listen(efSendAmountStringProvider, (previous, String next) {
|
|
if (!_sendFocusNode.hasFocus) {
|
|
_sendController.text = next;
|
|
// if (_swapLock) {
|
|
_receiveController.text =
|
|
isEstimated && ref.read(efReceiveAmountStringProvider).isEmpty
|
|
? "-"
|
|
: ref.read(efReceiveAmountStringProvider);
|
|
// }
|
|
|
|
if (_receiveFocusNode.hasFocus) {
|
|
_receiveController.selection = TextSelection.fromPosition(
|
|
TextPosition(
|
|
offset: _receiveController.text.length,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
});
|
|
|
|
ref.listen(efEstimateProvider.notifier, (previous, next) {
|
|
final estimate = (next).state;
|
|
if (ref.read(efReversedProvider)) {
|
|
updateSend(estimate);
|
|
} else {
|
|
updateReceive(estimate);
|
|
}
|
|
});
|
|
|
|
ref.listen(efCurrencyPairProvider, (previous, next) {
|
|
if (!_swapLock) {
|
|
update();
|
|
}
|
|
});
|
|
|
|
return Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
crossAxisAlignment: CrossAxisAlignment.stretch,
|
|
children: [
|
|
Text(
|
|
"You will send",
|
|
style: STextStyles.itemSubtitle(context).copyWith(
|
|
color: Theme.of(context).extension<StackColors>()!.textDark3,
|
|
),
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 10 : 4,
|
|
),
|
|
ExchangeTextField(
|
|
key: Key("exchangeTextFieldKeyFor_"
|
|
"${Theme.of(context).extension<StackColors>()!.themeId}"
|
|
"${ref.watch(efCurrencyPairProvider.select((value) => value.send?.ticker))}"),
|
|
controller: _sendController,
|
|
focusNode: _sendFocusNode,
|
|
textStyle: STextStyles.smallMed14(context).copyWith(
|
|
color: Theme.of(context).extension<StackColors>()!.textDark,
|
|
),
|
|
buttonColor:
|
|
Theme.of(context).extension<StackColors>()!.buttonBackSecondary,
|
|
borderRadius: Constants.size.circularBorderRadius,
|
|
background:
|
|
Theme.of(context).extension<StackColors>()!.textFieldDefaultBG,
|
|
onTap: () {
|
|
if (_sendController.text == "-") {
|
|
_sendController.text = "";
|
|
}
|
|
},
|
|
onChanged: sendFieldOnChanged,
|
|
onButtonTap: selectSendCurrency,
|
|
isWalletCoin: isWalletCoin(coin, true),
|
|
currency:
|
|
ref.watch(efCurrencyPairProvider.select((value) => value.send)),
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 10 : 4,
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 10 : 4,
|
|
),
|
|
Row(
|
|
crossAxisAlignment: CrossAxisAlignment.end,
|
|
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
|
children: [
|
|
Text(
|
|
"You will receive",
|
|
style: STextStyles.itemSubtitle(context).copyWith(
|
|
color: Theme.of(context).extension<StackColors>()!.textDark3,
|
|
),
|
|
),
|
|
ConditionalParent(
|
|
condition: isDesktop,
|
|
builder: (child) => MouseRegion(
|
|
cursor: SystemMouseCursors.click,
|
|
child: child,
|
|
),
|
|
child: Semantics(
|
|
label: "Swap Button. Reverse The Exchange Currencies.",
|
|
excludeSemantics: true,
|
|
child: RoundedContainer(
|
|
padding: isDesktop
|
|
? const EdgeInsets.all(6)
|
|
: const EdgeInsets.all(2),
|
|
color: Theme.of(context)
|
|
.extension<StackColors>()!
|
|
.buttonBackSecondary,
|
|
radiusMultiplier: 0.75,
|
|
child: GestureDetector(
|
|
onTap: () async {
|
|
await _swap();
|
|
},
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(4),
|
|
child: SvgPicture.asset(
|
|
Assets.svg.swap,
|
|
width: 20,
|
|
height: 20,
|
|
color: Theme.of(context)
|
|
.extension<StackColors>()!
|
|
.accentColorDark,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 10 : 7,
|
|
),
|
|
ExchangeTextField(
|
|
key: Key(
|
|
"exchangeTextFieldKeyFor1_${Theme.of(context).extension<StackColors>()!.themeId}"),
|
|
focusNode: _receiveFocusNode,
|
|
controller: _receiveController,
|
|
textStyle: STextStyles.smallMed14(context).copyWith(
|
|
color: Theme.of(context).extension<StackColors>()!.textDark,
|
|
),
|
|
buttonColor:
|
|
Theme.of(context).extension<StackColors>()!.buttonBackSecondary,
|
|
borderRadius: Constants.size.circularBorderRadius,
|
|
background:
|
|
Theme.of(context).extension<StackColors>()!.textFieldDefaultBG,
|
|
onTap: rateType == ExchangeRateType.estimated &&
|
|
ref.watch(efExchangeProvider).name ==
|
|
ChangeNowExchange.exchangeName
|
|
? null
|
|
: () {
|
|
if (_sendController.text == "-") {
|
|
_sendController.text = "";
|
|
}
|
|
},
|
|
onChanged: receiveFieldOnChanged,
|
|
onButtonTap: selectReceiveCurrency,
|
|
isWalletCoin: isWalletCoin(coin, true),
|
|
currency: ref
|
|
.watch(efCurrencyPairProvider.select((value) => value.receive)),
|
|
readOnly: rateType == ExchangeRateType.estimated &&
|
|
ref.watch(efExchangeProvider).name ==
|
|
ChangeNowExchange.exchangeName,
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 20 : 12,
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 60 : 40,
|
|
child: RateTypeToggle(
|
|
key: UniqueKey(),
|
|
onChanged: onRateTypeChanged,
|
|
),
|
|
),
|
|
AnimatedSize(
|
|
duration: const Duration(milliseconds: 300),
|
|
child: ref.watch(efSendAmountProvider) == null &&
|
|
ref.watch(efReceiveAmountProvider) == null
|
|
? const SizedBox(
|
|
height: 0,
|
|
)
|
|
: Padding(
|
|
padding: EdgeInsets.only(top: isDesktop ? 20 : 12),
|
|
child: ExchangeProviderOptions(
|
|
fixedRate: rateType == ExchangeRateType.fixed,
|
|
reversed: ref.watch(efReversedProvider),
|
|
),
|
|
),
|
|
),
|
|
SizedBox(
|
|
height: isDesktop ? 20 : 12,
|
|
),
|
|
PrimaryButton(
|
|
buttonHeight: isDesktop ? ButtonHeight.l : null,
|
|
enabled: ref.watch(efCanExchangeProvider),
|
|
onPressed: onExchangePressed,
|
|
label: "Swap",
|
|
)
|
|
],
|
|
);
|
|
}
|
|
|
|
// TorService instance.
|
|
late TorService torService;
|
|
}
|