feat: redesign for CurrencyPicker and FiatPicker, introduce recents and currency groupings (#3248)

* Redesign for CurrencyPicker and FiatPicker, introduce recents and currency groupings

* chore: cleanup

* refactor: switch recents to previously completed trades, specify stables to be displayed, fix scrollable and adjust badge

* refactor: switch recents to previously completed trades, specify stables to be displayed, fix scrollable, adjust badge, add fiat and multinetwork currency pickers to buy and sell flows

* fresh set of changes and fixes for new currency picker flow

* add chain label to items on search and smooth pop

* add chain pill and label to xstocks

* properly filter search results

* shorten chain pill name for BSC tokens

* Review fixes

* cleanups

* safe pop

---------

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

lib/view_model/buy/buy_sell_view_model.dart

@@ -5,6 +5,7 @@ import 'package:cake_wallet/buy/buy_quote.dart';
 import 'package:cake_wallet/buy/onramper/onramper_buy_provider.dart';
 import 'package:cake_wallet/buy/payment_method.dart';
 import 'package:cake_wallet/buy/sell_buy_states.dart';
+import 'package:cake_wallet/core/amount_parsing_proxy.dart';
 import 'package:cake_wallet/core/selectable_option.dart';
 import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
@@ -87,6 +88,8 @@ abstract class BuySellViewModelBase extends WalletChangeListenerViewModel with S
 
   final AppStore _appStore;
 
+  AmountParsingProxy get amountParsingProxy => _appStore.amountParsingProxy;
+
   Quote? bestRateQuote;
 
   Quote? selectedQuote;

lib/view_model/exchange/exchange_view_model.dart

@@ -38,11 +38,9 @@ import 'package:cake_wallet/exchange/provider/xoswap_exchange_provider.dart';
 import 'package:cake_wallet/exchange/trade.dart';
 import 'package:cake_wallet/exchange/trade_request.dart';
 import 'package:cake_wallet/generated/i18n.dart';
-import 'package:cake_wallet/src/screens/exchange/widgets/currency_picker.dart';
+import 'package:cake_wallet/new-ui/widgets/currency_picker/fiat_currency_picker_sheet.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/utils/exchange_provider_logger.dart';
-import 'package:cake_wallet/utils/show_pop_up.dart';
-import 'package:cw_core/currency.dart';
 import "package:cw_core/wallet_info.dart";
 import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cake_wallet/store/dashboard/trades_store.dart';
@@ -270,17 +268,10 @@ abstract class ExchangeViewModelBase extends WalletChangeListenerViewModel with
   }
 
   void showFiatCurrencyPicker(BuildContext context) {
-    showPopUp<void>(
+    FiatCurrencyPickerSheet.show(
       context: context,
-      builder: (_) => CurrencyPicker(
-        key: ValueKey('send_page_currency_picker_dialog_button_key'),
-        selectedAtIndex: FiatCurrency.all.indexOf(fiat),
-        items: FiatCurrency.all,
-        hintText: S.of(context).search_currency,
-        onItemSelected: (Currency cur) async {
-          _settingsStore.fiatCurrency = (cur as FiatCurrency);
-        },
-      ),
+      selected: fiat,
+      onSelected: (cur) => _settingsStore.fiatCurrency = cur,
     );
   }
 

lib/view_model/wallet_address_list/wallet_address_list_view_model.dart

@@ -2,6 +2,7 @@ import 'dart:core';
 import 'dart:developer' as dev;
 
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cake_wallet/core/amount_parsing_proxy.dart';
 import 'package:cake_wallet/core/fiat_conversion_service.dart';
 import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
 import 'package:cake_wallet/decred/decred.dart';
@@ -167,6 +168,8 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
   bool get hasPayjoin =>
       wallet.type == WalletType.bitcoin && !isLightning && !isSilentPayments && uri.toString().contains("payjo.in");
 
+  AmountParsingProxy get amountParsingProxy => _appStore.amountParsingProxy;
+
   @computed
   FiatCurrency get fiatCurrency => _appStore.settingsStore.fiatCurrency;