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flutterflow-ui/lib/src/widgets/flutter_flow_language_selector.dart

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/*
* Copyright (c) 2019 gomgom. https://www.gomgom.net
*
* Source code has been modified by FlutterFlow, Inc. and the below license
* applies only to this file. Adapted from "language_picker" pub.dev package.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
import 'package:emoji_flag_converter/emoji_flag_converter.dart';
import 'package:flutter/material.dart';
class FlutterFlowLanguageSelector extends StatelessWidget {
const FlutterFlowLanguageSelector({
super.key,
required this.currentLanguage,
required this.languages,
required this.onChanged,
this.width,
this.height,
this.backgroundColor,
this.borderColor = const Color(0xFF262D34),
this.borderRadius = 8.0,
this.textStyle,
this.hideFlags = false,
this.flagSize = 24.0,
this.flagTextGap = 8.0,
this.dropdownColor,
this.dropdownIconColor = const Color(0xFF14181B),
this.dropdownIcon,
});
final double? width;
final double? height;
final String currentLanguage;
final List<String> languages;
final Function(String) onChanged;
final Color? backgroundColor;
final Color? borderColor;
final double borderRadius;
final TextStyle? textStyle;
final bool hideFlags;
final double flagSize;
final double? flagTextGap;
final Color? dropdownColor;
final Color? dropdownIconColor;
final IconData? dropdownIcon;
@override
Widget build(BuildContext context) => SizedBox(
width: width,
height: height,
child: _LanguagePickerDropdown(
currentLanguage: currentLanguage,
languages: _languageMap(languages.toSet()),
onChanged: onChanged,
backgroundColor: backgroundColor,
borderColor: borderColor,
borderRadius: borderRadius,
dropdownColor: dropdownColor,
dropdownIconColor: dropdownIconColor,
dropdownIcon: dropdownIcon,
itemBuilder: (language) => _LanguagePickerItem(
language: language.isoCode,
languages: languages,
textStyle: textStyle,
hideFlags: hideFlags,
flagSize: flagSize,
flagTextGap: flagTextGap,
),
),
);
}
class _LanguagePickerItem extends StatelessWidget {
const _LanguagePickerItem({
required this.language,
required this.languages,
this.textStyle,
this.hideFlags = false,
this.flagSize = 24.0,
this.flagTextGap = 8.0,
});
final String language;
final List<String> languages;
final TextStyle? textStyle;
final bool hideFlags;
final double flagSize;
final double? flagTextGap;
@override
Widget build(BuildContext context) {
final flagInfo = languageToCountryInfo[language];
Widget flagWidget = Container();
if (flagInfo is String) {
final flagEmoji = EmojiConverter.fromAlpha2CountryCode(flagInfo);
flagWidget = Padding(
padding: const EdgeInsets.only(bottom: 2.0),
child: Text(
flagEmoji,
style: const TextStyle(fontSize: 20.0),
),
);
} else if (flagInfo is Map) {
final flagUrl = flagInfo['flag'] as String;
flagWidget = Image.network(
flagUrl,
width: 24,
height: 20,
);
}
flagWidget = Transform.scale(
scale: flagSize / 24.0,
child: SizedBox(
width: 24,
child: flagWidget,
),
);
return Row(
children: [
if (!hideFlags) ...[
flagWidget,
SizedBox(width: flagTextGap),
],
Text(
_languageMap(languages.toSet())[language]?.name ?? '',
style: textStyle ??
const TextStyle(
color: Colors.white,
fontSize: 13,
fontWeight: FontWeight.normal,
),
),
],
);
}
}
/// Provides a customizable [DropdownButton] for all languages
class _LanguagePickerDropdown extends StatelessWidget {
const _LanguagePickerDropdown({
required this.itemBuilder,
required this.currentLanguage,
required this.onChanged,
required this.languages,
this.backgroundColor,
this.borderColor = const Color(0xFF262D34),
this.borderRadius = 8.0,
this.dropdownColor,
this.dropdownIconColor = const Color(0xFF14181B),
this.dropdownIcon,
});
/// This function will be called to build the child of DropdownMenuItem.
final Widget Function(Language) itemBuilder;
/// The current ISO ALPHA-2 code.
final String currentLanguage;
/// This function will be called whenever a Language item is selected.
final ValueChanged<String> onChanged;
/// List of languages available in this picker.
final Map<String, Language> languages;
final Color? backgroundColor;
final Color? borderColor;
final double borderRadius;
final Color? dropdownColor;
final Color? dropdownIconColor;
final IconData? dropdownIcon;
@override
Widget build(BuildContext context) {
List<DropdownMenuItem<String>> items = languages.values
.map(
(language) => DropdownMenuItem<String>(
value: language.isoCode,
child: itemBuilder(language),
),
)
.toList();
return Container(
height: 44.0,
decoration: BoxDecoration(
color: backgroundColor,
border: Border.all(color: borderColor ?? Colors.transparent),
borderRadius: BorderRadius.circular(borderRadius),
),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 15.0),
child: Center(
child: DropdownButton<String>(
isExpanded: true,
underline: Container(),
dropdownColor: dropdownColor ?? backgroundColor,
focusColor: Colors.transparent,
iconEnabledColor: dropdownIconColor,
iconDisabledColor: dropdownIconColor,
icon: dropdownIcon != null
? Icon(
dropdownIcon,
size: 18.0,
color: dropdownIconColor,
)
: null,
hint: const Text(
'Unset',
style: TextStyle(
color: Colors.red,
fontFamily: 'Product Sans',
fontStyle: FontStyle.italic,
fontSize: 15,
),
),
onChanged: (val) {
if (val != null) {
onChanged(val);
}
},
items: items,
value: currentLanguage.isNotEmpty ? currentLanguage : null,
),
),
),
);
}
}
class Language {
Language(this.isoCode, this.name);
Language.fromMap(Map<String, String> map)
: name = map['name']!,
isoCode = map['isoCode']!;
final String name;
final String isoCode;
}
Map<String, Language> _languageMap(Set<String> languages) => Map.fromEntries(
_defaultLanguagesList
.where((element) => languages.contains(element['isoCode']))
.map((e) => MapEntry(e['isoCode']!, Language.fromMap(e))),
);
final List<Map<String, String>> _defaultLanguagesList = [
{"isoCode": "aa", "name": "Afaraf"},
{"isoCode": "af", "name": "Afrikaans"},
{"isoCode": "ak", "name": "Akan"},
{"isoCode": "sq", "name": "Shqip"},
{"isoCode": "am", "name": "አማርኛ"},
{"isoCode": "ar", "name": "العربية"},
{"isoCode": "hy", "name": "Հայերեն"},
{"isoCode": "as", "name": "অসমীয়া"},
{"isoCode": "ay", "name": "aymar"},
{"isoCode": "az", "name": "azərbaycan"},
{"isoCode": "bm", "name": "bamanankan"},
{"isoCode": "ba", "name": "башҡорт теле"},
{"isoCode": "eu", "name": "euskara, euskera"},
{"isoCode": "be", "name": "беларуская мова"},
{"isoCode": "bn", "name": "বাংলা"},
{"isoCode": "bh", "name": "भोजपुरी"},
{"isoCode": "bi", "name": "Bislama"},
{"isoCode": "nb", "name": "Norsk bokmål"},
{"isoCode": "bs", "name": "bosanski jezik"},
{"isoCode": "br", "name": "brezhoneg"},
{"isoCode": "bg", "name": "български език"},
{"isoCode": "my", "name": "ဗမာစာ"},
{"isoCode": "ca", "name": "català"},
{"isoCode": "km", "name": "ភាសាខ្មែរ"},
{"isoCode": "ch", "name": "Chamoru"},
{"isoCode": "ce", "name": "нохчийн мотт"},
{"isoCode": "ny", "name": "chiCheŵa"},
{"isoCode": "zh_Hans", "name": "中文 (简体)"},
{"isoCode": "zh_Hant", "name": "中文 (繁體)"},
{"isoCode": "cv", "name": "чӑваш чӗлхи"},
{"isoCode": "cr", "name": "ᓀᐦᐃᔭᐍᐏᐣ"},
{"isoCode": "hr", "name": "hrvatski jezik"},
{"isoCode": "cs", "name": "čeština"},
{"isoCode": "da", "name": "dansk"},
{"isoCode": "dv", "name": "ދިވެހި"},
{"isoCode": "nl", "name": "Nederlands"},
{"isoCode": "dz", "name": "རྫོང་ཁ"},
{"isoCode": "en", "name": "English"},
{"isoCode": "eo", "name": "Esperanto"},
{"isoCode": "et", "name": "eesti"},
{"isoCode": "ee", "name": "Eʋegbe"},
{"isoCode": "fo", "name": "føroyskt"},
{"isoCode": "fj", "name": "vosa Vakaviti"},
{"isoCode": "fi", "name": "suomi"},
{"isoCode": "fr", "name": "français"},
{"isoCode": "ff", "name": "Fulfulde"},
{"isoCode": "gd", "name": "Gàidhlig"},
{"isoCode": "gl", "name": "galego"},
{"isoCode": "lg", "name": "Luganda"},
{"isoCode": "ka", "name": "ქართული"},
{"isoCode": "de", "name": "Deutsch"},
{"isoCode": "el", "name": "ελληνικά"},
{"isoCode": "gn", "name": "Avañe'ẽ"},
{"isoCode": "gu", "name": "ગુજરાતી"},
{"isoCode": "ht", "name": "Kreyòl ayisyen"},
{"isoCode": "ha", "name": "هَوُسَ"},
{"isoCode": "he", "name": "עברית"},
{"isoCode": "hz", "name": "Otjiherero"},
{"isoCode": "hi", "name": "हिन्दी, हिंदी"},
{"isoCode": "ho", "name": "Hiri Motu"},
{"isoCode": "hu", "name": "magyar"},
{"isoCode": "is", "name": "Íslenska"},
{"isoCode": "io", "name": "Ido"},
{"isoCode": "ig", "name": "Asụsụ Igbo"},
{"isoCode": "id", "name": "Bahasa Indonesia"},
{"isoCode": "ia", "name": "Interlingua"},
{"isoCode": "ie", "name": "Interlingue"},
{"isoCode": "iu", "name": "ᐃᓄᒃᑎᑐᑦ"},
{"isoCode": "ik", "name": "Iñupiaq"},
{"isoCode": "ga", "name": "Gaeilge"},
{"isoCode": "it", "name": "Italiano"},
{"isoCode": "ja", "name": "日本語 (にほんご)"},
{"isoCode": "jv", "name": "ꦧꦱꦗꦮ"},
{"isoCode": "kl", "name": "kalaallisut"},
{"isoCode": "kn", "name": "ಕನ್ನಡ"},
{"isoCode": "kr", "name": "Kanuri"},
{"isoCode": "ks", "name": "कश्मीरी"},
{"isoCode": "kk", "name": "қазақ тілі"},
{"isoCode": "ki", "name": "Gĩkũyũ"},
{"isoCode": "rw", "name": "Ikinyarwanda"},
{"isoCode": "ky", "name": "Кыргызча"},
{"isoCode": "kv", "name": "коми кыв"},
{"isoCode": "kg", "name": "Kikongo"},
{"isoCode": "ko", "name": "한국어"},
{"isoCode": "kj", "name": "Kuanyama"},
{"isoCode": "ku", "name": "Kurdî"},
{"isoCode": "lo", "name": "ພາສາລາວ"},
{"isoCode": "la", "name": "latine"},
{"isoCode": "lv", "name": "latviešu valoda"},
{"isoCode": "li", "name": "Limburgs"},
{"isoCode": "ln", "name": "Lingála"},
{"isoCode": "lt", "name": "lietuvių kalba"},
{"isoCode": "lu", "name": "Tshiluba"},
{"isoCode": "lb", "name": "Lëtzebuergesch"},
{"isoCode": "mk", "name": "македонски јазик"},
{"isoCode": "mg", "name": "fiteny malagasy"},
{"isoCode": "ms", "name": "bahasa Melayu"},
{"isoCode": "ml", "name": "മലയാളം"},
{"isoCode": "mt", "name": "Malti"},
{"isoCode": "gv", "name": "Gaelg, Gailck"},
{"isoCode": "mi", "name": "te reo Māori"},
{"isoCode": "mr", "name": "मराठी"},
{"isoCode": "mh", "name": "Kajin M̧ajeļ"},
{"isoCode": "mn", "name": "Монгол хэл"},
{"isoCode": "na", "name": "Dorerin Naoero"},
{"isoCode": "nv", "name": "Diné bizaad"},
{"isoCode": "nd", "name": "Ndebele (Southern)"},
{"isoCode": "nr", "name": "Ndebele (Northern)"},
{"isoCode": "ng", "name": "Owambo"},
{"isoCode": "ne", "name": "नेपाली"},
{"isoCode": "se", "name": "Davvisámegiella"},
{"isoCode": "no", "name": "Norsk"},
{"isoCode": "nn", "name": "Norsk nynorsk"},
{"isoCode": "oc", "name": "occitan"},
{"isoCode": "oj", "name": "ᐊᓂᔑᓈᐯᒧᐎᓐ"},
{"isoCode": "or", "name": "ଓଡ଼ିଆ"},
{"isoCode": "om", "name": "Afaan Oromoo"},
{"isoCode": "os", "name": "ирон æвзаг"},
{"isoCode": "pi", "name": "पाऴि"},
{"isoCode": "pa", "name": "ਪੰਜਾਬੀ"},
{"isoCode": "fa", "name": "فارسی"},
{"isoCode": "pl", "name": "Polski"},
{"isoCode": "pt", "name": "Português"},
{"isoCode": "ps", "name": "پښتو"},
{"isoCode": "qu", "name": "Runa Simi, Kichwa"},
{"isoCode": "ro", "name": "Română"},
{"isoCode": "rm", "name": "rumantsch grischun"},
{"isoCode": "rn", "name": "Ikirundi"},
{"isoCode": "ru", "name": "Русский"},
{"isoCode": "sm", "name": "gagana fa'a Samoa"},
{"isoCode": "sg", "name": "yângâ tî sängö"},
{"isoCode": "sa", "name": "संस्कृतम्"},
{"isoCode": "sc", "name": "sardu"},
{"isoCode": "sr", "name": "српски језик"},
{"isoCode": "sn", "name": "chiShona"},
{"isoCode": "ii", "name": "ꆈꌠ꒿ Nuosuhxop"},
{"isoCode": "sd", "name": "सिन्धी"},
{"isoCode": "si", "name": "සිංහල"},
{"isoCode": "sk", "name": "slovenský jazyk"},
{"isoCode": "sl", "name": "slovenščina"},
{"isoCode": "so", "name": "Soomaaliga"},
{"isoCode": "st", "name": "Sesotho"},
{"isoCode": "es", "name": "Español"},
{"isoCode": "su", "name": "Basa Sunda"},
{"isoCode": "sw", "name": "Kiswahili"},
{"isoCode": "ss", "name": "SiSwati"},
{"isoCode": "sv", "name": "svenska"},
{"isoCode": "tl", "name": "Tagalog"},
{"isoCode": "ty", "name": "Reo Tahiti"},
{"isoCode": "tg", "name": "тоҷикӣ"},
{"isoCode": "ta", "name": "தமிழ்"},
{"isoCode": "tt", "name": "татар теле"},
{"isoCode": "te", "name": "తెలుగు"},
{"isoCode": "th", "name": "ไทย"},
{"isoCode": "bo", "name": "བོད་ཡིག"},
{"isoCode": "ti", "name": "ትግርኛ"},
{"isoCode": "to", "name": "faka Tonga"},
{"isoCode": "ts", "name": "Xitsonga"},
{"isoCode": "tn", "name": "Setswana"},
{"isoCode": "tr", "name": "Türkçe"},
{"isoCode": "tk", "name": "Түркмен"},
{"isoCode": "tw", "name": "Twi"},
{"isoCode": "ug", "name": "ئۇيغۇرچە"},
{"isoCode": "uk", "name": "Українська"},
{"isoCode": "ur", "name": "اردو"},
{"isoCode": "uz", "name": "Oʻzbek"},
{"isoCode": "ve", "name": "Tshivenḓa"},
{"isoCode": "vi", "name": "Tiếng Việt"},
{"isoCode": "vo", "name": "Volapük"},
{"isoCode": "wa", "name": "walon"},
{"isoCode": "cy", "name": "Cymraeg"},
{"isoCode": "fy", "name": "Frysk"},
{"isoCode": "wo", "name": "Wollof"},
{"isoCode": "xh", "name": "Xhosa"},
{"isoCode": "yi", "name": "ייִדיש"},
{"isoCode": "yo", "name": "Yorùbá"},
{"isoCode": "za", "name": "Saɯ cueŋƅ"},
{"isoCode": "zu", "name": "Zulu"},
];
final Map<String, dynamic> languageToCountryInfo = {
"aa": "dj",
"af": "za",
"ak": "gh",
"sq": "al",
"am": "et",
"ar": {
"proposed_iso_3166": "aa",
"flag":
"https://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/Flag_of_the_Arab_League.svg/400px-Flag_of_the_Arab_League.svg.png",
"name": "Arab League"
},
"hy": "am",
"ay": {
"proposed_iso_3166": "wh",
"flag":
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Banner_of_the_Qulla_Suyu.svg/1920px-Banner_of_the_Qulla_Suyu.svg.png",
"name": "Wiphala"
},
"az": "az",
"bm": "ml",
"be": "by",
"bn": "bd",
"bi": "vu",
"bs": "ba",
"bg": "bg",
"my": "mm",
"ca": "ad",
"zh": "cn",
"hr": "hr",
"cs": "cz",
"da": "dk",
"dv": "mv",
"nl": "nl",
"dz": "bt",
"en": "gb",
"et": "ee",
"ee": {
"proposed_iso_3166": "ew",
"flag":
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Flag_of_the_Ewe_people.svg/2880px-Flag_of_the_Ewe_people.svg.png",
"name": "Ewe"
},
"fj": "fj",
"fil": "ph",
"fi": "fi",
"fr": "fr",
"gaa": "gh",
"ka": "ge",
"kl": "gl",
"de": "de",
"el": "gr",
"gu": "in",
"ht": "ht",
"he": "il",
"hi": "in",
"ho": "pg",
"hu": "hu",
"is": "is",
"ig": "ng",
"id": "id",
"ga": "ie",
"it": "it",
"ja": "jp",
"kr": "ne",
"kk": "kz",
"km": "kh",
"kmb": "ao",
"rw": "rw",
"kg": "cg",
"ko": "kr",
"kj": "ao",
"ku": "iq",
"ky": "kg",
"lo": "la",
"la": "va",
"lv": "lv",
"ln": "cg",
"lt": "lt",
"lu": "cd",
"lb": "lu",
"mk": "mk",
"mg": "mg",
"ms": "my",
"mt": "mt",
"mi": "nz",
"mh": "mh",
"mn": "mn",
"mos": "bf",
"ne": "np",
"nd": "zw",
"nso": "za",
"no": "no",
"nb": "no",
"nn": "no",
"ny": "mw",
"pap": "aw",
"ps": "af",
"fa": "ir",
"pl": "pl",
"pt": "pt",
"pa": "in",
"qu": "wh",
"ro": "ro",
"rm": "ch",
"rn": "bi",
"ru": "ru",
"sg": "cf",
"sr": "rs",
"srr": "sn",
"sn": "zw",
"si": "lk",
"sk": "sk",
"sl": "si",
"so": "so",
"snk": "sn",
"nr": "za",
"st": "ls",
"es": "es",
"sw": {
"proposed_iso_3166": "sw",
"flag":
"https://upload.wikimedia.org/wikipedia/commons/d/de/Flag_of_Swahili.gif",
"name": "Swahili"
},
"ss": "sz",
"sv": "se",
"tl": "ph",
"tg": "tj",
"ta": "lk",
"te": "in",
"tet": "tl",
"th": "th",
"ti": "er",
"tpi": "pg",
"ts": "za",
"tn": "bw",
"tr": "tr",
"tk": "tm",
"uk": "ua",
"umb": "ao",
"ur": "pk",
"uz": "uz",
"ve": "za",
"vi": "vn",
"cy": "gb",
"wo": "sn",
"xh": "za",
"yo": {
"proposed_iso_3166": "yo",
"flag":
"https://upload.wikimedia.org/wikipedia/commons/0/04/Flag_of_the_Yoruba_people.svg",
"name": "Yoruba"
},
"zu": "za",
// Custom
"zh_Hans": "cn",
"zh_Hant": "cn",
"fo": "fo",
"bo": "bo",
"to": "to",
};