| 1 | import 'package:cake_wallet/entities/fiat_currency.dart'; |
| 2 | import 'package:cake_wallet/generated/i18n.dart'; |
| 3 | import 'package:cake_wallet/new-ui/widgets/currency_picker/currency_picker_list_container.dart'; |
| 4 | import 'package:cake_wallet/new-ui/widgets/currency_picker/currency_picker_search_field.dart'; |
| 5 | import 'package:cake_wallet/new-ui/widgets/currency_picker/fiat_currency_row.dart'; |
| 6 | import 'package:cake_wallet/new-ui/widgets/currency_picker/fiat_currency_search_result.dart'; |
| 7 | import 'package:cake_wallet/new-ui/widgets/receive_page/receive_top_bar.dart'; |
| 8 | import 'package:cake_wallet/src/widgets/cake_image_widget.dart'; |
| 9 | import 'package:cw_core/crypto_currency.dart'; |
| 10 | import 'package:flutter/material.dart'; |
| 11 | |
| 12 | class FiatCurrencyPickerSheet extends StatefulWidget { |
| 13 | const FiatCurrencyPickerSheet({ |
| 14 | super.key, |
| 15 | required this.selected, |
| 16 | required this.onSelected, |
| 17 | this.cryptoOption, |
| 18 | this.onCryptoSelected, |
| 19 | }); |
| 20 | |
| 21 | final Object? selected; |
| 22 | final ValueChanged<FiatCurrency> onSelected; |
| 23 | final CryptoCurrency? cryptoOption; |
| 24 | final ValueChanged<CryptoCurrency>? onCryptoSelected; |
| 25 | |
| 26 | static const _popularOrder = <FiatCurrency>[ |
| 27 | FiatCurrency.usd, |
| 28 | FiatCurrency.eur, |
| 29 | FiatCurrency.gbp, |
| 30 | FiatCurrency.jpy, |
| 31 | FiatCurrency.cny, |
| 32 | ]; |
| 33 | |
| 34 | static Future<void> show({ |
| 35 | required BuildContext context, |
| 36 | required Object? selected, |
| 37 | required ValueChanged<FiatCurrency> onSelected, |
| 38 | CryptoCurrency? cryptoOption, |
| 39 | ValueChanged<CryptoCurrency>? onCryptoSelected, |
| 40 | }) { |
| 41 | return showModalBottomSheet<void>( |
| 42 | context: context, |
| 43 | isScrollControlled: true, |
| 44 | useSafeArea: true, |
| 45 | enableDrag: false, |
| 46 | backgroundColor: Colors.transparent, |
| 47 | builder: (_) => FiatCurrencyPickerSheet( |
| 48 | selected: selected, |
| 49 | onSelected: onSelected, |
| 50 | cryptoOption: cryptoOption, |
| 51 | onCryptoSelected: onCryptoSelected, |
| 52 | ), |
| 53 | ); |
| 54 | } |
| 55 | |
| 56 | @override |
| 57 | State<FiatCurrencyPickerSheet> createState() => _FiatCurrencyPickerSheetState(); |
| 58 | } |
| 59 | |
| 60 | class _FiatCurrencyPickerSheetState extends State<FiatCurrencyPickerSheet> { |
| 61 | final TextEditingController _searchController = TextEditingController(); |
| 62 | late final List<FiatCurrency> _allSorted = [...FiatCurrency.all]..sort( |
| 63 | (a, b) => a.fullName.toLowerCase().compareTo(b.fullName.toLowerCase()), |
| 64 | ); |
| 65 | |
| 66 | bool get _isSearching => _searchController.text.trim().isNotEmpty; |
| 67 | |
| 68 | @override |
| 69 | void initState() { |
| 70 | super.initState(); |
| 71 | _searchController.addListener(() => setState(() {})); |
| 72 | } |
| 73 | |
| 74 | @override |
| 75 | void dispose() { |
| 76 | _searchController.dispose(); |
| 77 | super.dispose(); |
| 78 | } |
| 79 | |
| 80 | bool _matches(FiatCurrency c, String query) { |
| 81 | if (query.isEmpty) return true; |
| 82 | final q = query.toLowerCase(); |
| 83 | return c.fullName.toLowerCase().contains(q) || c.title.toLowerCase().contains(q); |
| 84 | } |
| 85 | |
| 86 | void _selectFiatCurrency(FiatCurrency c) { |
| 87 | widget.onSelected(c); |
| 88 | Navigator.of(context).maybePop(); |
| 89 | } |
| 90 | |
| 91 | void _selectCryptoCurrency(CryptoCurrency c) { |
| 92 | widget.onCryptoSelected?.call(c); |
| 93 | Navigator.of(context).maybePop(); |
| 94 | } |
| 95 | |
| 96 | @override |
| 97 | Widget build(BuildContext context) { |
| 98 | final colors = Theme.of(context).colorScheme; |
| 99 | final selected = widget.selected; |
| 100 | final selectedFiat = selected is FiatCurrency ? selected : null; |
| 101 | final popular = FiatCurrencyPickerSheet._popularOrder |
| 102 | .where((c) => c != selectedFiat) |
| 103 | .toList(growable: false); |
| 104 | final query = _searchController.text.trim(); |
| 105 | final filteredAll = _allSorted.where((c) => _matches(c, query)).toList(growable: false); |
| 106 | |
| 107 | return Padding( |
| 108 | padding: EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom), |
| 109 | child: Container( |
| 110 | decoration: BoxDecoration( |
| 111 | borderRadius: const BorderRadius.vertical(top: Radius.circular(24)), |
| 112 | color: colors.surface, |
| 113 | ), |
| 114 | child: Column( |
| 115 | mainAxisSize: MainAxisSize.max, |
| 116 | children: [ |
| 117 | ModalTopBar( |
| 118 | title: S.of(context).select_fiat_currency_title, |
| 119 | leadingIcon: const Icon(Icons.close), |
| 120 | leadingSemanticLabel: S.of(context).close, |
| 121 | onLeadingPressed: () => Navigator.of(context).maybePop(), |
| 122 | ), |
| 123 | Expanded( |
| 124 | child: _isSearching |
| 125 | ? FiatCurrencySearchResults( |
| 126 | items: filteredAll, |
| 127 | onSelected: _selectFiatCurrency, |
| 128 | selected: selectedFiat, |
| 129 | ) |
| 130 | : FiatCurrencyPickerBody( |
| 131 | selected: selected, |
| 132 | cryptoOption: widget.cryptoOption, |
| 133 | popular: popular, |
| 134 | all: filteredAll, |
| 135 | onSelectedFiat: _selectFiatCurrency, |
| 136 | onSelectedCrypto: _selectCryptoCurrency, |
| 137 | ), |
| 138 | ), |
| 139 | CurrencyPickerSearchField( |
| 140 | controller: _searchController, |
| 141 | hintText: S.of(context).search, |
| 142 | ), |
| 143 | const SizedBox(height: 24), |
| 144 | ], |
| 145 | ), |
| 146 | ), |
| 147 | ); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | class FiatCurrencyPickerBody extends StatelessWidget { |
| 152 | const FiatCurrencyPickerBody({ |
| 153 | super.key, |
| 154 | required this.selected, |
| 155 | required this.cryptoOption, |
| 156 | required this.popular, |
| 157 | required this.all, |
| 158 | required this.onSelectedFiat, |
| 159 | required this.onSelectedCrypto, |
| 160 | }); |
| 161 | |
| 162 | final Object? selected; |
| 163 | final CryptoCurrency? cryptoOption; |
| 164 | final List<FiatCurrency> popular; |
| 165 | final List<FiatCurrency> all; |
| 166 | final void Function(FiatCurrency) onSelectedFiat; |
| 167 | final void Function(CryptoCurrency) onSelectedCrypto; |
| 168 | |
| 169 | @override |
| 170 | Widget build(BuildContext context) { |
| 171 | final selectedFiat = selected is FiatCurrency ? selected as FiatCurrency : null; |
| 172 | final selectedCrypto = selected is CryptoCurrency ? selected as CryptoCurrency : null; |
| 173 | final showCryptoSection = cryptoOption != null && selectedCrypto == null; |
| 174 | |
| 175 | return ListView( |
| 176 | padding: const EdgeInsets.fromLTRB(16, 8, 16, 16), |
| 177 | children: [ |
| 178 | if (selectedFiat != null || selectedCrypto != null) ...[ |
| 179 | _SectionHeader(label: S.of(context).picker_section_selected), |
| 180 | CurrencyPickerListContainer( |
| 181 | rows: [ |
| 182 | if (selectedFiat != null) |
| 183 | FiatCurrencyRow( |
| 184 | currency: selectedFiat, |
| 185 | isSelected: true, |
| 186 | onTap: () => onSelectedFiat(selectedFiat), |
| 187 | ), |
| 188 | if (selectedCrypto != null) |
| 189 | _CryptoOptionRow( |
| 190 | currency: selectedCrypto, |
| 191 | isSelected: true, |
| 192 | onTap: () => onSelectedCrypto(selectedCrypto), |
| 193 | ), |
| 194 | ], |
| 195 | ), |
| 196 | const SizedBox(height: 16), |
| 197 | ], |
| 198 | if (showCryptoSection) ...[ |
| 199 | _SectionHeader(label: S.of(context).picker_section_crypto), |
| 200 | CurrencyPickerListContainer( |
| 201 | rows: [ |
| 202 | _CryptoOptionRow( |
| 203 | currency: cryptoOption!, |
| 204 | isSelected: false, |
| 205 | onTap: () => onSelectedCrypto(cryptoOption!), |
| 206 | ), |
| 207 | ], |
| 208 | ), |
| 209 | const SizedBox(height: 16), |
| 210 | ], |
| 211 | if (popular.isNotEmpty) ...[ |
| 212 | _SectionHeader(label: S.of(context).picker_section_popular), |
| 213 | CurrencyPickerListContainer( |
| 214 | rows: [ |
| 215 | for (final c in popular) |
| 216 | FiatCurrencyRow( |
| 217 | currency: c, |
| 218 | isSelected: false, |
| 219 | onTap: () => onSelectedFiat(c), |
| 220 | ), |
| 221 | ], |
| 222 | ), |
| 223 | const SizedBox(height: 16), |
| 224 | ], |
| 225 | _SectionHeader(label: S.of(context).picker_section_all_currencies), |
| 226 | CurrencyPickerListContainer( |
| 227 | rows: [ |
| 228 | for (final c in all) |
| 229 | FiatCurrencyRow( |
| 230 | currency: c, |
| 231 | isSelected: c == selectedFiat, |
| 232 | onTap: () => onSelectedFiat(c), |
| 233 | ), |
| 234 | ], |
| 235 | ), |
| 236 | ], |
| 237 | ); |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | class _SectionHeader extends StatelessWidget { |
| 242 | const _SectionHeader({required this.label}); |
| 243 | |
| 244 | final String label; |
| 245 | |
| 246 | @override |
| 247 | Widget build(BuildContext context) { |
| 248 | return Padding( |
| 249 | padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 8), |
| 250 | child: Text( |
| 251 | label, |
| 252 | style: Theme.of(context).textTheme.bodyMedium?.copyWith( |
| 253 | fontWeight: FontWeight.w500, |
| 254 | color: Theme.of(context).colorScheme.onSurfaceVariant, |
| 255 | ), |
| 256 | ), |
| 257 | ); |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | class _CryptoOptionRow extends StatelessWidget { |
| 262 | const _CryptoOptionRow({ |
| 263 | required this.currency, |
| 264 | required this.isSelected, |
| 265 | required this.onTap, |
| 266 | }); |
| 267 | |
| 268 | final CryptoCurrency currency; |
| 269 | final bool isSelected; |
| 270 | final VoidCallback onTap; |
| 271 | |
| 272 | @override |
| 273 | Widget build(BuildContext context) { |
| 274 | final colors = Theme.of(context).colorScheme; |
| 275 | return InkWell( |
| 276 | onTap: onTap, |
| 277 | child: Padding( |
| 278 | padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 12), |
| 279 | child: Row( |
| 280 | children: [ |
| 281 | CakeImageWidget( |
| 282 | imageUrl: currency.iconPath, |
| 283 | width: 28, |
| 284 | height: 28, |
| 285 | fit: BoxFit.cover, |
| 286 | ), |
| 287 | const SizedBox(width: 12), |
| 288 | Expanded( |
| 289 | child: Column( |
| 290 | crossAxisAlignment: CrossAxisAlignment.start, |
| 291 | mainAxisSize: MainAxisSize.min, |
| 292 | children: [ |
| 293 | Text( |
| 294 | currency.fullName ?? currency.title, |
| 295 | style: Theme.of(context).textTheme.bodyMedium?.copyWith( |
| 296 | fontWeight: FontWeight.w500, |
| 297 | ), |
| 298 | ), |
| 299 | const SizedBox(height: 2), |
| 300 | Text( |
| 301 | currency.title, |
| 302 | style: Theme.of(context).textTheme.bodySmall?.copyWith( |
| 303 | color: colors.onSurfaceVariant, |
| 304 | ), |
| 305 | ), |
| 306 | ], |
| 307 | ), |
| 308 | ), |
| 309 | if (isSelected) Icon(Icons.check, size: 20, color: colors.primary), |
| 310 | ], |
| 311 | ), |
| 312 | ), |
| 313 | ); |
| 314 | } |
| 315 | } |