cake_wallet/lib/src/screens/exchange/exchange_template_page.dart

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Dart

import 'dart:ui';
import 'package:cake_wallet/exchange/exchange_provider.dart';
import 'package:cake_wallet/exchange/exchange_template.dart';
import 'package:cake_wallet/src/screens/base_page.dart';
import 'package:cake_wallet/src/widgets/alert_with_two_actions.dart';
import 'package:cake_wallet/src/widgets/keyboard_done_button.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_mobx/flutter_mobx.dart';
import 'package:keyboard_actions/keyboard_actions.dart';
import 'package:keyboard_actions/keyboard_actions_config.dart';
import 'package:keyboard_actions/keyboard_actions_item.dart';
import 'package:mobx/mobx.dart';
import 'package:cake_wallet/generated/i18n.dart';
import 'package:cw_core/crypto_currency.dart';
import 'package:cake_wallet/exchange/xmrto/xmrto_exchange_provider.dart';
// import 'package:cake_wallet/exchange/exchange_trade_state.dart';
// import 'package:cake_wallet/exchange/limits_state.dart';
import 'package:cake_wallet/src/screens/exchange/widgets/exchange_card.dart';
import 'package:cake_wallet/src/widgets/primary_button.dart';
import 'package:cake_wallet/src/widgets/scollable_with_bottom_section.dart';
import 'package:cake_wallet/src/widgets/alert_with_one_action.dart';
import 'package:cake_wallet/view_model/exchange/exchange_view_model.dart';
import 'package:cake_wallet/core/address_validator.dart';
import 'package:cake_wallet/core/amount_validator.dart';
import 'package:cake_wallet/src/screens/exchange/widgets/present_provider_picker.dart';
class ExchangeTemplatePage extends BasePage {
ExchangeTemplatePage(this.exchangeViewModel);
final ExchangeViewModel exchangeViewModel;
final depositKey = GlobalKey<ExchangeCardState>();
final receiveKey = GlobalKey<ExchangeCardState>();
final _formKey = GlobalKey<FormState>();
final _depositAmountFocus = FocusNode();
final _receiveAmountFocus = FocusNode();
var _isReactionsSet = false;
@override
String get title => S.current.exchange_new_template;
@override
Color get titleColor => Colors.white;
@override
bool get extendBodyBehindAppBar => true;
@override
AppBarStyle get appBarStyle => AppBarStyle.transparent;
@override
Widget trailing(BuildContext context) =>
PresentProviderPicker(exchangeViewModel: exchangeViewModel);
@override
Widget body(BuildContext context) {
final arrowBottomPurple = Image.asset(
'assets/images/arrow_bottom_purple_icon.png',
color: Colors.white,
height: 8,
);
final arrowBottomCakeGreen = Image.asset(
'assets/images/arrow_bottom_cake_green.png',
color: Colors.white,
height: 8,
);
final depositWalletName =
exchangeViewModel.depositCurrency == CryptoCurrency.xmr
? exchangeViewModel.wallet.name
: null;
final receiveWalletName =
exchangeViewModel.receiveCurrency == CryptoCurrency.xmr
? exchangeViewModel.wallet.name
: null;
WidgetsBinding.instance
.addPostFrameCallback((_) => _setReactions(context, exchangeViewModel));
return KeyboardActions(
disableScroll: true,
config: KeyboardActionsConfig(
keyboardActionsPlatform: KeyboardActionsPlatform.IOS,
keyboardBarColor:
Theme.of(context).accentTextTheme.body2.backgroundColor,
nextFocus: false,
actions: [
KeyboardActionsItem(
focusNode: _depositAmountFocus,
toolbarButtons: [(_) => KeyboardDoneButton()]),
KeyboardActionsItem(
focusNode: _receiveAmountFocus,
toolbarButtons: [(_) => KeyboardDoneButton()])
]),
child: Container(
color: Theme.of(context).backgroundColor,
child: Form(
key: _formKey,
child: ScrollableWithBottomSection(
contentPadding: EdgeInsets.only(bottom: 24),
content: Container(
padding: EdgeInsets.only(bottom: 32),
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(24),
bottomRight: Radius.circular(24)
),
gradient: LinearGradient(
colors: [
Theme.of(context).primaryTextTheme.body1.color,
Theme.of(context).primaryTextTheme.body1.decorationColor,
],
stops: [0.35, 1.0],
begin: Alignment.topLeft,
end: Alignment.bottomRight),
),
child: Column(
children: <Widget>[
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(24),
bottomRight: Radius.circular(24)
),
gradient: LinearGradient(
colors: [
Theme.of(context)
.primaryTextTheme
.subtitle
.color,
Theme.of(context)
.primaryTextTheme
.subtitle
.decorationColor,
],
begin: Alignment.topLeft,
end: Alignment.bottomRight),
),
padding: EdgeInsets.fromLTRB(24, 90, 24, 32),
child: Observer(
builder: (_) => ExchangeCard(
amountFocusNode: _depositAmountFocus,
key: depositKey,
title: S.of(context).you_will_send,
initialCurrency:
exchangeViewModel.depositCurrency,
initialWalletName: depositWalletName,
initialAddress: exchangeViewModel
.depositCurrency ==
exchangeViewModel.wallet.currency
? exchangeViewModel.wallet.walletAddresses.address
: exchangeViewModel.depositAddress,
initialIsAmountEditable: true,
initialIsAddressEditable: exchangeViewModel
.isDepositAddressEnabled,
isAmountEstimated: false,
hasRefundAddress: true,
isMoneroWallet: exchangeViewModel.isMoneroWallet,
currencies: CryptoCurrency.all,
onCurrencySelected: (currency) =>
exchangeViewModel.changeDepositCurrency(
currency: currency),
imageArrow: arrowBottomPurple,
currencyButtonColor: Colors.transparent,
addressButtonsColor:
Theme.of(context).focusColor,
borderColor: Theme.of(context)
.primaryTextTheme
.body2
.color,
currencyValueValidator: AmountValidator(
type: exchangeViewModel.wallet.type),
//addressTextFieldValidator: AddressValidator(
// type: exchangeViewModel.depositCurrency),
),
),
),
Padding(
padding: EdgeInsets.only(top: 29, left: 24, right: 24),
child: Observer(
builder: (_) => ExchangeCard(
amountFocusNode: _receiveAmountFocus,
key: receiveKey,
title: S.of(context).you_will_get,
initialCurrency:
exchangeViewModel.receiveCurrency,
initialWalletName: receiveWalletName,
initialAddress:
exchangeViewModel.receiveCurrency ==
exchangeViewModel.wallet.currency
? exchangeViewModel.wallet.walletAddresses.address
: exchangeViewModel.receiveAddress,
initialIsAmountEditable:
exchangeViewModel.provider is
XMRTOExchangeProvider ? true : false,
initialIsAddressEditable:
exchangeViewModel.isReceiveAddressEnabled,
isAmountEstimated: true,
isMoneroWallet: exchangeViewModel.isMoneroWallet,
currencies: exchangeViewModel.receiveCurrencies,
onCurrencySelected: (currency) =>
exchangeViewModel.changeReceiveCurrency(
currency: currency),
imageArrow: arrowBottomCakeGreen,
currencyButtonColor: Colors.transparent,
addressButtonsColor:
Theme.of(context).focusColor,
borderColor: Theme.of(context)
.primaryTextTheme
.body2
.decorationColor,
currencyValueValidator: AmountValidator(
type: exchangeViewModel.wallet.type),
//addressTextFieldValidator: AddressValidator(
// type: exchangeViewModel.receiveCurrency),
)),
)
],
),
),
bottomSectionPadding:
EdgeInsets.only(left: 24, right: 24, bottom: 24),
bottomSection: Column(children: <Widget>[
Padding(
padding: EdgeInsets.only(bottom: 15),
child: Observer(builder: (_) {
final description =
exchangeViewModel.provider is XMRTOExchangeProvider
? S.of(context).amount_is_guaranteed
: S.of(context).amount_is_estimate;
return Center(
child: Text(
description,
textAlign: TextAlign.center,
style: TextStyle(
color: Theme.of(context)
.primaryTextTheme
.display4
.decorationColor,
fontWeight: FontWeight.w500,
fontSize: 12),
),
);
}),
),
PrimaryButton(
onPressed: () {
if (_formKey.currentState.validate()) {
exchangeViewModel.addTemplate(
amount: exchangeViewModel.depositAmount,
depositCurrency:
exchangeViewModel.depositCurrency.toString(),
receiveCurrency:
exchangeViewModel.receiveCurrency.toString(),
provider: exchangeViewModel.provider.toString(),
depositAddress: exchangeViewModel.depositAddress,
receiveAddress: exchangeViewModel.receiveAddress);
exchangeViewModel.updateTemplate();
Navigator.of(context).pop();
}
},
text: S.of(context).save,
color: Colors.green,
textColor: Colors.white),
]),
))
)
);
}
void _setReactions(
BuildContext context, ExchangeViewModel exchangeViewModel) {
if (_isReactionsSet) {
return;
}
final depositAddressController = depositKey.currentState.addressController;
final depositAmountController = depositKey.currentState.amountController;
final receiveAddressController = receiveKey.currentState.addressController;
final receiveAmountController = receiveKey.currentState.amountController;
final limitsState = exchangeViewModel.limitsState;
// FIXME: FIXME
// final limitsState = exchangeViewModel.limitsState;
//
// if (limitsState is LimitsLoadedSuccessfully) {
// final min = limitsState.limits.min != null
// ? limitsState.limits.min.toString()
// : null;
// final max = limitsState.limits.max != null
// ? limitsState.limits.max.toString()
// : null;
// final key = depositKey;
// key.currentState.changeLimits(min: min, max: max);
// }
_onCurrencyChange(
exchangeViewModel.receiveCurrency, exchangeViewModel, receiveKey);
_onCurrencyChange(
exchangeViewModel.depositCurrency, exchangeViewModel, depositKey);
reaction(
(_) => exchangeViewModel.wallet.name,
(String _) => _onWalletNameChange(
exchangeViewModel, exchangeViewModel.receiveCurrency, receiveKey));
reaction(
(_) => exchangeViewModel.wallet.name,
(String _) => _onWalletNameChange(
exchangeViewModel, exchangeViewModel.depositCurrency, depositKey));
reaction(
(_) => exchangeViewModel.receiveCurrency,
(CryptoCurrency currency) =>
_onCurrencyChange(currency, exchangeViewModel, receiveKey));
reaction(
(_) => exchangeViewModel.depositCurrency,
(CryptoCurrency currency) =>
_onCurrencyChange(currency, exchangeViewModel, depositKey));
reaction((_) => exchangeViewModel.depositAmount, (String amount) {
if (depositKey.currentState.amountController.text != amount) {
depositKey.currentState.amountController.text = amount;
}
});
reaction((_) => exchangeViewModel.depositAddress, (String address) {
if (depositKey.currentState.addressController.text != address) {
depositKey.currentState.addressController.text = address;
}
});
reaction((_) => exchangeViewModel.isDepositAddressEnabled,
(bool isEnabled) {
depositKey.currentState.isAddressEditable(isEditable: isEnabled);
});
reaction((_) => exchangeViewModel.receiveAmount, (String amount) {
if (receiveKey.currentState.amountController.text != amount) {
receiveKey.currentState.amountController.text = amount;
}
});
reaction((_) => exchangeViewModel.receiveAddress, (String address) {
if (receiveKey.currentState.addressController.text != address) {
receiveKey.currentState.addressController.text = address;
}
});
reaction((_) => exchangeViewModel.isReceiveAddressEnabled,
(bool isEnabled) {
receiveKey.currentState.isAddressEditable(isEditable: isEnabled);
});
reaction((_) => exchangeViewModel.provider, (ExchangeProvider provider) {
provider is XMRTOExchangeProvider
? receiveKey.currentState.isAmountEditable(isEditable: true)
: receiveKey.currentState.isAmountEditable(isEditable: false);
});
/*reaction((_) => exchangeViewModel.limitsState, (LimitsState state) {
String min;
String max;
if (state is LimitsLoadedSuccessfully) {
min = state.limits.min != null ? state.limits.min.toString() : null;
max = state.limits.max != null ? state.limits.max.toString() : null;
}
if (state is LimitsLoadedFailure) {
min = '0';
max = '0';
}
if (state is LimitsIsLoading) {
min = '...';
max = '...';
}
depositKey.currentState.changeLimits(min: min, max: max);
receiveKey.currentState.changeLimits(min: null, max: null);
});*/
depositAddressController.addListener(
() => exchangeViewModel.depositAddress = depositAddressController.text);
depositAmountController.addListener(() {
if (depositAmountController.text != exchangeViewModel.depositAmount) {
exchangeViewModel.changeDepositAmount(
amount: depositAmountController.text);
exchangeViewModel.isReceiveAmountEntered = false;
}
});
receiveAddressController.addListener(
() => exchangeViewModel.receiveAddress = receiveAddressController.text);
receiveAmountController.addListener(() {
if (receiveAmountController.text != exchangeViewModel.receiveAmount) {
exchangeViewModel.changeReceiveAmount(
amount: receiveAmountController.text);
exchangeViewModel.isReceiveAmountEntered = true;
}
});
reaction((_) => exchangeViewModel.wallet.walletAddresses.address,
(String address) {
if (exchangeViewModel.depositCurrency == CryptoCurrency.xmr) {
depositKey.currentState.changeAddress(address: address);
}
if (exchangeViewModel.receiveCurrency == CryptoCurrency.xmr) {
receiveKey.currentState.changeAddress(address: address);
}
});
_isReactionsSet = true;
}
void _onCurrencyChange(CryptoCurrency currency,
ExchangeViewModel exchangeViewModel, GlobalKey<ExchangeCardState> key) {
final isCurrentTypeWallet = currency == exchangeViewModel.wallet.currency;
key.currentState.changeSelectedCurrency(currency);
key.currentState.changeWalletName(
isCurrentTypeWallet ? exchangeViewModel.wallet.name : null);
key.currentState.changeAddress(
address: isCurrentTypeWallet
? exchangeViewModel.wallet.walletAddresses.address : '');
key.currentState.changeAmount(amount: '');
}
void _onWalletNameChange(ExchangeViewModel exchangeViewModel,
CryptoCurrency currency, GlobalKey<ExchangeCardState> key) {
final isCurrentTypeWallet = currency == exchangeViewModel.wallet.currency;
if (isCurrentTypeWallet) {
key.currentState.changeWalletName(exchangeViewModel.wallet.name);
key.currentState.addressController.text =
exchangeViewModel.wallet.walletAddresses.address;
} else if (key.currentState.addressController.text ==
exchangeViewModel.wallet.walletAddresses.address) {
key.currentState.changeWalletName(null);
key.currentState.addressController.text = null;
}
}
}