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main.dart
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import 'package:socket_io_client/socket_io_client.dart' as io;
import 'package:image_picker/image_picker.dart';
import 'package:get_storage/get_storage.dart';
import 'package:http/http.dart' as requests;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'dart:typed_data';
import 'dart:convert';
import 'dart:io';
// Runs when app starts
void main() async {
await GetStorage.init();
runApp(const App());
}
String ip = ''; // IP for requests and socket
// Socket
io.Socket socket = io.io('ws://$ip:8456', <String, dynamic> {
'transports': ['websocket'],
'autoConnect': false,
});
final storage = GetStorage();
String activeGroupName = '';
// Colors
// https://dribbble.com/shots/10750209-Interior-Mobile-App
// Credit to: Anastasia Marinicheva
var textColor = const Color(0xFFFFF4E8);
var textColorDark = const Color(0xFFACCDDD);
var backgroundColor = const Color(0xFF325261);
var backgroundColorDark = const Color(0xFF234050);
var backgroundColorLight = const Color(0xFF607B89);
var activeColor = const Color(0xFFF5B688);
var activeColorDark = const Color(0xFFCF997B);
var activeColorLight = const Color(0xFFEBCFB0);
//! --- MATERIALAPP ---
class App extends StatelessWidget {
const App({ Key? key }) : super(key: key);
// Route user to login or home depending on whether they are logged in or not
getInitialRoute() {
if (storage.read('userid') != null) {
return '/home';
}
return '/login';
}
@override
Widget build(BuildContext context) {
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
]);
return MaterialApp (
theme: ThemeData (
fontFamily: 'Comfortaa',
scaffoldBackgroundColor: backgroundColor
),
initialRoute: getInitialRoute(),
routes: {
// Login section
'/login': (context) => const LoginPage(),
'/login/create_account': (context) => const CreateAccountPage(),
'/login/create_account/verify_email': (context) => const VerifyEmailPage(),
// Home section
'/home': (context) => const HomePage(),
'/home/profile': (context) => const ProfilePage(),
'/home/create_group': (context) => const CreateGroupPage(),
'/home/group': (context) => const GroupTextPage(),
'/home/group/settings': (context) => const GroupSettingsPage(),
'/home/group/leave': (context) => const GroupLeavePage(),
},
debugShowCheckedModeBanner: false,
builder: (context, child) {
// I got this bit of code from here:
// https://stackoverflow.com/questions/59143443/how-to-make-flutter-app-font-size-independent-from-device-settings
// This makes the font size independent of the device settings
return MediaQuery (
child: child!,
data: MediaQuery.of(context).copyWith(textScaleFactor: 1.0),
);
},
);
}
}
//! --- LOGIN PAGE ---
class LoginPage extends StatefulWidget {
const LoginPage({ Key? key }) : super(key: key);
@override
_LoginPageState createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
bool obscurePassword = true; // Whether password is obscured or not
var passwordVisibleIcon = Icon (
Icons.remove_red_eye_outlined,
color: activeColor
);
TextEditingController passwordController = TextEditingController();
TextEditingController usernameController = TextEditingController();
// Login information submitted
loginSubmit() async {
String username = usernameController.text;
String password = passwordController.text;
var queries = {
'username': username,
'password': password,
};
var response = await sendRequest('login', queries, context);
if (response['msg'] == 'bad') {
alert('Incorrect username or password', context);
} else if (response['msg'] == 'success') { // User has successfully logged in
// Write user id and name to device storage
storage.write('userid', response['userid']);
storage.write('username', username);
Navigator.of(context).pushNamedAndRemoveUntil('/home', (Route<dynamic> route) => false);
}
}
@override
Widget build(BuildContext context) {
return Scaffold (
backgroundColor: backgroundColorDark,
resizeToAvoidBottomInset: false,
body: Center (
child: Column (
children: [
Container (
margin: EdgeInsets.only(bottom: MediaQuery.of(context).size.height / 20, top: MediaQuery.of(context).size.height / 10),
// Title text
child: Text (
'Chatty',
style: TextStyle (
fontSize: 70.0,
color: textColor
)
),
),
// Rounded box that contains page content
Expanded (
child: Container (
width: double.infinity,
padding: const EdgeInsets.only(top: 30.0, left: 30.0, right: 30.0, bottom: 15.0),
decoration: BoxDecoration (
color: backgroundColor,
borderRadius: const BorderRadius.only (
topRight: Radius.circular(50.0),
topLeft: Radius.circular(50.0),
)
),
child: Column (
mainAxisSize: MainAxisSize.max,
children: [
Align (
alignment: Alignment.centerLeft,
child: Container (
margin: EdgeInsets.only(bottom: MediaQuery.of(context).size.height / 40),
// 'Sign in' text at top of container
child: Text (
'Sign in',
style: TextStyle (
fontSize: 30.0,
color: textColor
)
),
),
),
// Username input field
TextField (
cursorColor: textColor,
controller: usernameController,
style: TextStyle (
fontSize: 14.0,
color: textColor,
),
decoration: InputDecoration (
prefixIcon: Icon (
Icons.person,
color: activeColor
),
isDense: true,
labelText: 'Username',
labelStyle: TextStyle (
color: activeColor
),
focusedBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
enabledBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
),
),
SizedBox (
height: MediaQuery.of(context).size.height / 35,
),
// Password input text field
TextField (
cursorColor: textColor,
controller: passwordController,
obscureText: obscurePassword,
style: TextStyle (
fontSize: 14.0,
color: textColor,
),
decoration: InputDecoration (
prefixIcon: Icon (
Icons.lock,
color: activeColor
),
isDense: true,
labelText: 'Password',
labelStyle: TextStyle (
color: activeColor
),
focusedBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
enabledBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
suffixIcon: IconButton (
icon: passwordVisibleIcon,
onPressed: () {
setState(() {
obscurePassword = !obscurePassword;
if (obscurePassword) {
passwordVisibleIcon = Icon (
Icons.remove_red_eye_outlined,
color: activeColor
);
}
else {
passwordVisibleIcon = Icon (
Icons.remove_red_eye,
color: activeColor
);
}
});
},
)
),
),
SizedBox (
height: MediaQuery.of(context).size.height / 25,
),
// Submit button
SizedBox (
width: double.infinity,
child: OutlinedButton (
style: ButtonStyle (
padding: MaterialStateProperty.all(const EdgeInsets.all(12.0)),
backgroundColor: MaterialStateProperty.all(activeColor),
side: MaterialStateProperty.all(BorderSide(color: activeColor)),
shape: MaterialStateProperty.all (
RoundedRectangleBorder(
side: BorderSide(color: activeColor),
borderRadius: BorderRadius.circular(15.0),
),
),
),
child: Text (
'Submit',
style: TextStyle (
color: backgroundColor,
fontSize: 20.0,
)
),
onPressed: () => loginSubmit(),
),
),
const Spacer(),
// Sign up text button at bottom of page
Row (
mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text (
'New user?',
style: TextStyle (
color: textColor,
fontSize: 17.0,
)
),
TextButton (
child: Text (
'Sign up',
style: TextStyle (
color: activeColor,
fontSize: 17.0,
),
),
onPressed: () {
Navigator.of(context).pushNamedAndRemoveUntil('/login/create_account', (Route<dynamic> route) => false);
},
)
]
)
]
)
),
),
],
),
)
);
}
}
//! --- CREATE ACCOUNT PAGE ---
class CreateAccountPage extends StatefulWidget {
const CreateAccountPage({ Key? key }) : super(key: key);
@override
_CreateAccountPageState createState() => _CreateAccountPageState();
}
class _CreateAccountPageState extends State<CreateAccountPage> {
bool passwordObscure = true; // Whether password field is obscured
bool confirmPasswordObscure = true; // Whether confirm password field is obscured
var passwordVisibleIcon = Icon (
Icons.remove_red_eye_outlined,
color: activeColor
);
var confirmPasswordVisibleIcon = Icon (
Icons.remove_red_eye_outlined,
color: activeColor
);
TextEditingController usernameController = TextEditingController();
TextEditingController passwordController = TextEditingController();
TextEditingController confirmPasswordController = TextEditingController();
TextEditingController emailController = TextEditingController();
Image profileImage = Image.asset('assets/default_profile.png', width: 200, height: 200, fit: BoxFit.fill); // Set profile picture to default image
var imageFile = '';
var userInfoDict = {
'username': '',
'email': '',
'password': '',
'profile_picture': '',
};
// Get image from device
Future pickImage() async {
final image = await ImagePicker().pickImage(source: ImageSource.gallery);
if (image == null) {
return;
} else {
imageFile = base64Encode(File(image.path).readAsBytesSync());
setState(() {
profileImage = Image.file(File(image.path), width: 200, height: 200, fit: BoxFit.cover);
});
}
}
// Create account
createAccountSubmit() async {
if (usernameController.text.isNotEmpty && passwordController.text.isNotEmpty && confirmPasswordController.text.isNotEmpty && emailController.text.isNotEmpty) {
String username = usernameController.text;
String password = passwordController.text;
String confirmPassword = confirmPasswordController.text;
String email = emailController.text;
// Set profile picture to default picture or picture chosen from device
if (imageFile == '') {
var tempDefaultImg = await rootBundle.load('assets/default_profile.png');
imageFile = base64Encode(Uint8List.view(tempDefaultImg.buffer));
}
if (password == confirmPassword) {
var queries = {
'username': username
};
var response = await sendRequest('check_username', queries, context);
if (response['msg'] == 'exist') {
alert('Username already exists', context);
} else if (response['msg'] == 'not_exist') {
// Move to email verification page
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => VerifyEmailPage(
username: username,
email: email,
password: password,
pfp: imageFile
),
),
);
}
}
else {
alert('Passwords do not match', context);
}
}
else {
alert('One or more fields are empty', context);
}
}
@override
Widget build(BuildContext context) {
return Scaffold (
resizeToAvoidBottomInset: false,
body: Container (
margin: const EdgeInsets.only(left: 20.0, right: 20.0, top: 30.0, bottom: 15.0),
child: Column (
children: [
SizedBox (
height: MediaQuery.of(context).size.height / 20
),
// 'Create Account' text at top of page
Align (
alignment: Alignment.centerLeft,
child: Container (
margin: EdgeInsets.only(bottom: MediaQuery.of(context).size.height / 40),
child: Text (
'Create Account',
style: TextStyle (
fontSize: 30.0,
color: textColor
)
),
),
),
// Username input field
TextField (
cursorColor: textColor,
controller: usernameController,
style: TextStyle (
fontSize: 14.0,
color: textColor,
),
decoration: InputDecoration (
prefixIcon: Icon (
Icons.person,
color: activeColor
),
isDense: true,
labelText: 'Username',
labelStyle: TextStyle (
color: activeColor
),
focusedBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
enabledBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
),
),
SizedBox (
height: MediaQuery.of(context).size.height / 55,
),
// Password and confirm password input fields
Row (
children: [
Expanded (
// Password input field
child: TextField (
cursorColor: textColor,
controller: passwordController,
obscureText: passwordObscure,
style: TextStyle (
fontSize: 14.0,
color: textColor,
),
decoration: InputDecoration (
prefixIcon: Icon (
Icons.lock,
color: activeColor
),
isDense: true,
labelText: 'Password',
labelStyle: TextStyle (
color: activeColor
),
focusedBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
enabledBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
suffixIcon: IconButton (
icon: passwordVisibleIcon,
onPressed: () {
setState(() {
passwordObscure = !passwordObscure;
if (passwordObscure) {
passwordVisibleIcon = Icon (
Icons.remove_red_eye_outlined,
color: activeColor
);
}
else {
passwordVisibleIcon = Icon (
Icons.remove_red_eye,
color: activeColor
);
}
});
},
),
),
),
),
SizedBox (
width: MediaQuery.of(context).size.width / 100
),
// Confirm password input field
Expanded (
child: TextField (
cursorColor: textColor,
controller: confirmPasswordController,
obscureText: confirmPasswordObscure,
style: TextStyle (
fontSize: 14.0,
color: textColor,
),
decoration: InputDecoration (
prefixIcon: Icon (
Icons.lock,
color: activeColor
),
isDense: true,
labelText: 'Confirm',
labelStyle: TextStyle (
color: activeColor
),
focusedBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
enabledBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
suffixIcon: IconButton (
icon: confirmPasswordVisibleIcon,
onPressed: () {
setState(() {
confirmPasswordObscure = !confirmPasswordObscure;
if (confirmPasswordObscure) {
confirmPasswordVisibleIcon = Icon (
Icons.remove_red_eye_outlined,
color: activeColor
);
}
else {
confirmPasswordVisibleIcon = Icon (
Icons.remove_red_eye,
color: activeColor
);
}
});
},
),
),
),
),
]
),
SizedBox (
height: MediaQuery.of(context).size.height / 55,
),
// Email input field
TextField (
cursorColor: textColor,
controller: emailController,
style: TextStyle (
fontSize: 14.0,
color: textColor,
),
decoration: InputDecoration (
prefixIcon: Icon (
Icons.email,
color: activeColor
),
isDense: true,
labelText: 'Email',
labelStyle: TextStyle (
color: activeColor
),
focusedBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
enabledBorder: OutlineInputBorder (
borderRadius: const BorderRadius.all(Radius.circular(15)),
borderSide: BorderSide (
width: 3.0,
style: BorderStyle.solid,
color: activeColor,
)
),
),
),
SizedBox (
height: MediaQuery.of(context).size.height / 40,
),
// Profile picture
ClipRRect (
borderRadius: BorderRadius.circular(100.0),
child: profileImage,
),
SizedBox (
height: MediaQuery.of(context).size.height / 100
),
// Choose profile picture button
SizedBox (
child: OutlinedButton (
style: ButtonStyle (
padding: MaterialStateProperty.all(const EdgeInsets.symmetric(vertical: 12.0, horizontal: 20.0)),
backgroundColor: MaterialStateProperty.all(backgroundColor),
side: MaterialStateProperty.all(BorderSide(color: activeColor, width: 2.5)),
shape: MaterialStateProperty.all (
RoundedRectangleBorder(
side: BorderSide(color: activeColor),
borderRadius: BorderRadius.circular(15.0),
),
),
),
child: Text (
'Choose Profile Picture',
style: TextStyle (
color: textColor,
fontSize: 15.0,
)
),
onPressed: () => pickImage(),
),
),
const Spacer(),
// Create account button
SizedBox (
width: double.infinity,
child: OutlinedButton (
style: ButtonStyle (
padding: MaterialStateProperty.all(const EdgeInsets.all(12.0)),
backgroundColor: MaterialStateProperty.all(activeColor),
side: MaterialStateProperty.all(BorderSide(color: activeColor)),
shape: MaterialStateProperty.all (
RoundedRectangleBorder(
side: BorderSide(color: activeColor),
borderRadius: BorderRadius.circular(15.0),
),
),
),
child: Text (
'Create Account',
style: TextStyle (
color: backgroundColor,
fontSize: 20.0,
)
),
onPressed: () => createAccountSubmit(),
),
),
SizedBox (
height: MediaQuery.of(context).size.height / 80
),
// Text button that takes you to sign in
Row (
mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text (
'Already have an account?',
style: TextStyle (
color: textColor,
fontSize: 14.0,
)
),
TextButton (
child: Text (
'Sign in',
style: TextStyle (
color: activeColor,
fontSize: 14.0,
),
),
onPressed: () {
Navigator.of(context).pushNamedAndRemoveUntil('/login', (Route<dynamic> route) => false);
},
)
]
)
],
)
)
);
}
}
//! --- HOME PAGE ---
class HomePage extends StatefulWidget {
const HomePage({ Key? key }) : super(key: key);
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
List groups = List.filled(0, '', growable: true); // List with names of groups that user is a member of
// Group creation button press
createGroup() {
Navigator.of(context).pushNamed('/home/create_group');
}
// Gets group names from server
// Called on page init and refresh button press
getGroups() async {
var queries = {'id': storage.read('userid')};
var response = await sendRequest('get_user_groups', queries, context);
setState(() {
groups = response['group_names'];
groups.sort();
});
}
// Group button is pressed
groupPressed(String group) {
activeGroupName = group;
Navigator.of(context).pushNamed('/home/group');
}
@override
void initState() {
getGroups();
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold (
backgroundColor: backgroundColorDark,
appBar: AppBar (
backgroundColor: backgroundColorDark,
elevation: 0,
// Refresh button
leading: IconButton (
icon: Icon (
Icons.refresh,
size: 40.0,
color: activeColor
),
onPressed: () {
getGroups();
}),
// 'Home' text
title: Center(
child: Text (
'Home',
style: TextStyle (
color: textColor,
fontSize: 40.0,
)
),
),
toolbarHeight: 65.0,
// Profile page button
actions: [
Container (
margin: EdgeInsets.only(right: MediaQuery.of(context).size.width / 50),
child: IconButton (
icon: Icon (
Icons.person,
size: 40.0,
color: activeColor,
),
onPressed: () {
Navigator.of(context).pushNamed('/home/profile');
},
),
)
],
),
body: Stack (
children: [
// Box that contains all groups
Container (
margin: const EdgeInsets.only(left: 10.0, right: 10.0, bottom: 10.0, top: 0),
decoration: BoxDecoration (
color: backgroundColor,
border: Border.all (
color: backgroundColor,
),
borderRadius: const BorderRadius.all(Radius.circular(20))
),
child: Container (
margin: const EdgeInsets.only(top: 5.0, bottom: 15.0),
child: RawScrollbar (
crossAxisMargin: -3.0,
thumbColor: backgroundColorLight,
radius: const Radius.circular(5.0),
isAlwaysShown: true,
child: ScrollConfiguration (
behavior: RemoveGlow(),
child: ListView (
children: [
for (String group in groups) // Create button for each group
Container (
margin: const EdgeInsets.all(10.0),
padding: const EdgeInsets.all(0.0),
child: ButtonTheme (
minWidth: double.infinity,
child: TextButton (
style: ButtonStyle (
backgroundColor: MaterialStateProperty.all(activeColor),
padding: MaterialStateProperty.all(const EdgeInsets.all(20.0)),
shape: MaterialStateProperty.all<RoundedRectangleBorder>(
RoundedRectangleBorder (
borderRadius: BorderRadius.circular(20.0),
side: BorderSide (
color: activeColor,
width: 5.0,
)
)
)
),
onPressed: () => groupPressed(group),
child: Text (
group,
style: TextStyle (
color: backgroundColorDark,
fontSize: 30.0,
),
),
),
)
),
],
),
),
),
),
),
// Group creation button
Container (
margin: const EdgeInsets.all(20.0),
child: Align (
alignment: Alignment.bottomRight,
child: SizedBox (
width: 60,
height: 60,
child: ElevatedButton (
onPressed: () => createGroup(),
style: ButtonStyle (
backgroundColor: MaterialStateProperty.all(activeColor),
elevation: MaterialStateProperty.all(10.0),
shape: MaterialStateProperty.all(RoundedRectangleBorder(
borderRadius: BorderRadius.circular(20)
),
)),
child: Icon (
Icons.add,
color: backgroundColorDark,
size: 30.0,
),
)
),
),
)
]
),
);
}
}
//! --- GROUP TEXT PAGE ---
class GroupTextPage extends StatefulWidget {
const GroupTextPage({ Key? key }) : super(key: key);
@override
State<GroupTextPage> createState() => _GroupTextPageState();
}
class _GroupTextPageState extends State<GroupTextPage> {
// Each list contains all information needed to display each message
List messages = List.filled(0, '', growable: true);
List usernames = List.filled(0, '', growable: true);
List pfps = List.filled(0, '', growable: true);
bool isAdmin = false; // Whether the user is the admin of the current group
TextEditingController messageController = TextEditingController();
String myUsername = '';
ScrollController scrollController = ScrollController(); // Allows us to determine when user has scrolled to top of messages
int numScrolled = 0; // Number of times the user has requested messages
// Determine whether user is admin of group
getAdmin() async {
var queries = {
'user_id': storage.read('userid'),
'group_name': activeGroupName
};
var response = await sendRequest('get_user_admin', queries, context);
if (response['msg'] == 'yes') {
setState(() {
isAdmin = true;
});
}
}
// Send message to group
sendMessage() {
String message = messageController.text;
if (message != '' && message.length < 500) {
var messageDict = {
'room': activeGroupName,
'username': storage.read('username'),
'content': message
};
socket.emit('send_message', messageDict);
messageController.text = '';
}