mirror of
https://github.com/SyncrowIOT/web.git
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Added login screen and Tree page screen to test graph view package
This commit is contained in:
126
lib/main.dart
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126
lib/main.dart
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@ -0,0 +1,126 @@
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import 'package:flutter/material.dart';
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import 'package:syncrow_web/pages/auth/view/login_page.dart';
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void main() {
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runApp(const MyApp());
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}
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Demo',
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theme: ThemeData(
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// This is the theme of your application.
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//
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// TRY THIS: Try running your application with "flutter run". You'll see
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// the application has a purple toolbar. Then, without quitting the app,
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// try changing the seedColor in the colorScheme below to Colors.green
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// and then invoke "hot reload" (save your changes or press the "hot
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// reload" button in a Flutter-supported IDE, or press "r" if you used
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// the command line to start the app).
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//
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// Notice that the counter didn't reset back to zero; the application
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// state is not lost during the reload. To reset the state, use hot
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// restart instead.
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//
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// This works for code too, not just values: Most code changes can be
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// tested with just a hot reload.
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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useMaterial3: true,
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),
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home: LoginPage(),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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final String title;
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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void _incrementCounter() {
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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});
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}
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@override
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Widget build(BuildContext context) {
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// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// TRY THIS: Try changing the color here to a specific color (to
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// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
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// change color while the other colors stay the same.
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
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child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
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// axis because Columns are vertical (the cross axis would be
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// horizontal).
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//
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// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
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// action in the IDE, or press "p" in the console), to see the
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// wireframe for each widget.
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text(
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'You have pushed the button this many times:',
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),
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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headlineMedium,
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),
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],
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),
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
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tooltip: 'Increment',
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child: const Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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);
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}
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}
|
19
lib/pages/auth/bloc/login_bloc.dart
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19
lib/pages/auth/bloc/login_bloc.dart
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@ -0,0 +1,19 @@
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:syncrow_web/pages/auth/bloc/login_event.dart';
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import 'package:syncrow_web/pages/auth/bloc/login_state.dart';
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class LoginBloc extends Bloc<LoginEvent, LoginState> {
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LoginBloc() : super(LoginInitial()) {
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on<LoginButtonPressed>(_onPress);
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}
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void _onPress(LoginButtonPressed event, Emitter<LoginState> emit) async {
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emit(LoginLoading());
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await Future.delayed(const Duration(seconds: 2));
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if (event.username == 'admin' && event.password == 'password') {
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emit(LoginSuccess());
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} else {
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emit(const LoginFailure(error: 'Invalid credentials'));
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}
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}
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}
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18
lib/pages/auth/bloc/login_event.dart
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18
lib/pages/auth/bloc/login_event.dart
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@ -0,0 +1,18 @@
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import 'package:equatable/equatable.dart';
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abstract class LoginEvent extends Equatable {
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const LoginEvent();
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@override
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List<Object> get props => [];
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}
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class LoginButtonPressed extends LoginEvent {
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final String username;
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final String password;
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const LoginButtonPressed({required this.username, required this.password});
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@override
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List<Object> get props => [username, password];
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}
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23
lib/pages/auth/bloc/login_state.dart
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23
lib/pages/auth/bloc/login_state.dart
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@ -0,0 +1,23 @@
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import 'package:equatable/equatable.dart';
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abstract class LoginState extends Equatable {
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const LoginState();
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@override
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List<Object> get props => [];
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}
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class LoginInitial extends LoginState {}
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class LoginLoading extends LoginState {}
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class LoginSuccess extends LoginState {}
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class LoginFailure extends LoginState {
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final String error;
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const LoginFailure({required this.error});
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@override
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List<Object> get props => [error];
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}
|
100
lib/pages/auth/view/login_page.dart
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100
lib/pages/auth/view/login_page.dart
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@ -0,0 +1,100 @@
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:syncrow_web/pages/auth/bloc/login_bloc.dart';
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import 'package:syncrow_web/pages/auth/bloc/login_event.dart';
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import 'package:syncrow_web/pages/auth/bloc/login_state.dart';
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import 'package:syncrow_web/pages/home/view/home_page.dart';
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class LoginPage extends StatelessWidget {
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const LoginPage({super.key});
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Login'),
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),
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body: BlocProvider(
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create: (context) => LoginBloc(),
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child: BlocConsumer<LoginBloc, LoginState>(
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listener: (context, state) {
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if (state is LoginSuccess) {
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// Navigate to home screen after successful login
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(builder: (context) => const HomePage()),
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);
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} else if (state is LoginFailure) {
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// Show error message
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(state.error),
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),
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);
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}
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},
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builder: (context, state) {
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if (state is LoginLoading) {
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return const Center(child: CircularProgressIndicator());
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} else {
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return _buildLoginForm(context);
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}
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},
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),
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),
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);
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}
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Widget _buildLoginForm(BuildContext context) {
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final loginBloc = BlocProvider.of<LoginBloc>(context);
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final TextEditingController _usernameController = TextEditingController();
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final TextEditingController _passwordController = TextEditingController();
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(20.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: <Widget>[
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SizedBox(
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width: MediaQuery.sizeOf(context).width * 0.4,
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child: TextField(
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controller: _usernameController,
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decoration: const InputDecoration(
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labelText: 'Username',
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),
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),
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),
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const SizedBox(height: 20.0),
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SizedBox(
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width: MediaQuery.sizeOf(context).width * 0.4,
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child: TextField(
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controller: _passwordController,
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obscureText: true,
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decoration: const InputDecoration(
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labelText: 'Password',
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),
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),
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),
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const SizedBox(height: 20.0),
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ElevatedButton(
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onPressed: () async {
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// Trigger login event
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loginBloc.add(
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LoginButtonPressed(
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username: _usernameController.text,
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password: _passwordController.text,
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),
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);
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},
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child: const Text('Login'),
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),
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],
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),
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),
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);
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}
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}
|
33
lib/pages/home/bloc/home_bloc.dart
Normal file
33
lib/pages/home/bloc/home_bloc.dart
Normal file
@ -0,0 +1,33 @@
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:graphview/GraphView.dart';
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import 'package:syncrow_web/pages/home/bloc/home_event.dart';
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import 'package:syncrow_web/pages/home/bloc/home_state.dart';
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class HomeBloc extends Bloc<HomeEvent, HomeState> {
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final Graph graph = Graph()..isTree = true;
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final BuchheimWalkerConfiguration builder = BuchheimWalkerConfiguration();
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List<Node> sourcesList = [];
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List<Node> destinationsList = [];
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HomeBloc() : super((HomeInitial())) {
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on<CreateNewNode>(_createNode);
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}
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void _createNode(CreateNewNode event, Emitter<HomeState> emit) async {
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emit(HomeInitial());
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sourcesList.add(event.sourceNode);
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destinationsList.add(event.destinationNode);
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for (int i = 0; i < sourcesList.length; i++) {
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graph.addEdge(sourcesList[i], destinationsList[i]);
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}
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builder
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..siblingSeparation = (100)
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..levelSeparation = (150)
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..subtreeSeparation = (150)
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..orientation = (BuchheimWalkerConfiguration.ORIENTATION_TOP_BOTTOM);
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emit(HomeUpdateTree(graph: graph, builder: builder));
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}
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}
|
19
lib/pages/home/bloc/home_event.dart
Normal file
19
lib/pages/home/bloc/home_event.dart
Normal file
@ -0,0 +1,19 @@
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import 'package:equatable/equatable.dart';
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import 'package:graphview/GraphView.dart';
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abstract class HomeEvent extends Equatable {
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const HomeEvent();
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||||
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@override
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List<Object> get props => [];
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||||
}
|
||||
|
||||
class CreateNewNode extends HomeEvent {
|
||||
final Node sourceNode;
|
||||
final Node destinationNode;
|
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const CreateNewNode(
|
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{required this.sourceNode, required this.destinationNode});
|
||||
|
||||
@override
|
||||
List<Object> get props => [sourceNode, destinationNode];
|
||||
}
|
26
lib/pages/home/bloc/home_state.dart
Normal file
26
lib/pages/home/bloc/home_state.dart
Normal file
@ -0,0 +1,26 @@
|
||||
import 'package:equatable/equatable.dart';
|
||||
import 'package:graphview/GraphView.dart';
|
||||
|
||||
abstract class HomeState extends Equatable {
|
||||
const HomeState();
|
||||
|
||||
@override
|
||||
List<Object> get props => [];
|
||||
}
|
||||
|
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class HomeInitial extends HomeState {}
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||||
|
||||
class HomeCounterState extends HomeState {
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final int counter;
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const HomeCounterState(this.counter);
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||||
}
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|
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class HomeUpdateTree extends HomeState {
|
||||
final Graph graph;
|
||||
final BuchheimWalkerConfiguration builder;
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||||
|
||||
const HomeUpdateTree({required this.graph, required this.builder});
|
||||
|
||||
@override
|
||||
List<Object> get props => [graph, builder];
|
||||
}
|
17
lib/pages/home/view/home_page.dart
Normal file
17
lib/pages/home/view/home_page.dart
Normal file
@ -0,0 +1,17 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_bloc/flutter_bloc.dart';
|
||||
import 'package:syncrow_web/pages/home/bloc/home_bloc.dart';
|
||||
import 'package:syncrow_web/pages/home/view/tree_page.dart';
|
||||
|
||||
class HomePage extends StatelessWidget {
|
||||
const HomePage({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Scaffold(
|
||||
body: BlocProvider(
|
||||
create: (context) => HomeBloc(),
|
||||
child: const TreeWidget(),
|
||||
));
|
||||
}
|
||||
}
|
150
lib/pages/home/view/tree_page.dart
Normal file
150
lib/pages/home/view/tree_page.dart
Normal file
@ -0,0 +1,150 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_bloc/flutter_bloc.dart';
|
||||
import 'package:graphview/GraphView.dart';
|
||||
import 'package:syncrow_web/pages/home/bloc/home_bloc.dart';
|
||||
import 'package:syncrow_web/pages/home/bloc/home_event.dart';
|
||||
import 'package:syncrow_web/pages/home/bloc/home_state.dart';
|
||||
|
||||
class TreeWidget extends StatelessWidget {
|
||||
const TreeWidget({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
// final HomeBloc homeBloc = BlocProvider.of<HomeBloc>(context);
|
||||
String firstNodeName = '';
|
||||
String secondNodeName = '';
|
||||
|
||||
return SafeArea(
|
||||
child: Container(
|
||||
padding: const EdgeInsets.all(24),
|
||||
width: MediaQuery.sizeOf(context).width,
|
||||
height: MediaQuery.sizeOf(context).height,
|
||||
alignment: AlignmentDirectional.center,
|
||||
child: Column(
|
||||
mainAxisSize: MainAxisSize.max,
|
||||
crossAxisAlignment: CrossAxisAlignment.center,
|
||||
mainAxisAlignment: MainAxisAlignment.center,
|
||||
children: [
|
||||
BlocBuilder<HomeBloc, HomeState>(builder: (context, state) {
|
||||
if (state is HomeInitial) {
|
||||
return Wrap(
|
||||
children: [
|
||||
Container(
|
||||
width: 100,
|
||||
child: TextFormField(
|
||||
decoration:
|
||||
InputDecoration(labelText: "Subtree separation"),
|
||||
onChanged: (text) {
|
||||
firstNodeName = text;
|
||||
},
|
||||
),
|
||||
),
|
||||
const SizedBox(
|
||||
width: 8,
|
||||
),
|
||||
Container(
|
||||
width: 100,
|
||||
child: TextFormField(
|
||||
decoration: InputDecoration(labelText: "Node Name"),
|
||||
onChanged: (text) {
|
||||
secondNodeName = text;
|
||||
},
|
||||
),
|
||||
),
|
||||
ElevatedButton(
|
||||
onPressed: () {
|
||||
final node1 = Node.Id(firstNodeName);
|
||||
final node2 = Node.Id(secondNodeName);
|
||||
|
||||
context.read<HomeBloc>().add(CreateNewNode(
|
||||
sourceNode: node1, destinationNode: node2));
|
||||
},
|
||||
child: Text("Add"),
|
||||
)
|
||||
],
|
||||
);
|
||||
}
|
||||
if (state is HomeUpdateTree) {
|
||||
return Expanded(
|
||||
child: InteractiveViewer(
|
||||
constrained: false,
|
||||
boundaryMargin: const EdgeInsets.all(100),
|
||||
minScale: 0.01,
|
||||
maxScale: 5.6,
|
||||
child: GraphView(
|
||||
graph: state.graph,
|
||||
algorithm: BuchheimWalkerAlgorithm(
|
||||
state.builder, TreeEdgeRenderer(state.builder)),
|
||||
paint: Paint()
|
||||
..color = Colors.green
|
||||
..strokeWidth = 1
|
||||
..style = PaintingStyle.stroke,
|
||||
builder: (Node node) {
|
||||
// I can decide what widget should be shown here based on the id
|
||||
var nodeName = node.key!.value;
|
||||
return rectangleWidget(nodeName, node, context);
|
||||
},
|
||||
)),
|
||||
);
|
||||
} else {
|
||||
return Container();
|
||||
}
|
||||
})
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
Widget rectangleWidget(String text, Node node, BuildContext blocContext) {
|
||||
String nodeName = '';
|
||||
|
||||
return InkWell(
|
||||
onTap: () {
|
||||
showDialog(
|
||||
context: blocContext,
|
||||
builder: (BuildContext context) {
|
||||
return AlertDialog(
|
||||
title: const Text('Add a child'),
|
||||
content: TextField(
|
||||
decoration:
|
||||
const InputDecoration(hintText: 'Enter your text here'),
|
||||
onChanged: (value) {
|
||||
nodeName = value;
|
||||
},
|
||||
),
|
||||
actions: <Widget>[
|
||||
TextButton(
|
||||
onPressed: () {
|
||||
Navigator.of(context).pop();
|
||||
},
|
||||
child: Text('Close'),
|
||||
),
|
||||
TextButton(
|
||||
onPressed: () {
|
||||
if (nodeName.isNotEmpty) {
|
||||
final newNode = Node.Id(nodeName);
|
||||
blocContext.read<HomeBloc>().add(CreateNewNode(
|
||||
sourceNode: node, destinationNode: newNode));
|
||||
}
|
||||
Navigator.of(context).pop();
|
||||
},
|
||||
child: Text('Add'),
|
||||
),
|
||||
],
|
||||
);
|
||||
},
|
||||
);
|
||||
},
|
||||
child: Container(
|
||||
padding: EdgeInsets.all(16),
|
||||
decoration: BoxDecoration(
|
||||
borderRadius: BorderRadius.circular(4),
|
||||
boxShadow: [
|
||||
BoxShadow(color: Colors.blue[100]!, spreadRadius: 1),
|
||||
],
|
||||
),
|
||||
child: Text(text)),
|
||||
);
|
||||
}
|
1
lib/services/auth_api.dart
Normal file
1
lib/services/auth_api.dart
Normal file
@ -0,0 +1 @@
|
||||
class AuthAPI {}
|
Reference in New Issue
Block a user