Марков Сергей Викторович
10 months ago
15 changed files with 287 additions and 75 deletions
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import 'dart:async'; |
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import 'dart:math'; |
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import 'dart:ui'; |
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import 'package:camera/camera.dart'; |
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import 'package:camera_aurora/camera_aurora.dart'; |
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import 'package:flutter/material.dart'; |
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import 'package:neon/src/models/account.dart'; |
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import 'package:neon/src/pages/login_qr_code.dart'; |
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import 'package:neon/src/router.dart'; |
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import 'package:neon/widgets.dart'; |
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class AuroraLoginQRcodePage extends StatefulWidget { |
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const AuroraLoginQRcodePage({super.key}); |
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@override |
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State<AuroraLoginQRcodePage> createState() => _AuroraLoginQRcodePageState(); |
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} |
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class _AuroraLoginQRcodePageState extends State<AuroraLoginQRcodePage> { |
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String? _lastErrorURL; |
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late Future<CameraController> _controller; |
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StreamSubscription<String?>? _cameraSearchQrSubscription; |
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String? code; |
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Future<CameraController> _createController() async { |
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final cameras = await availableCameras(); |
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if (cameras.isEmpty) { |
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throw CameraException('not found', null); |
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} |
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final camera = cameras.where((final element) => element.lensDirection == CameraLensDirection.back).first; |
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final controller = CameraController( |
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camera, |
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ResolutionPreset.medium, |
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imageFormatGroup: ImageFormatGroup.jpeg, |
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); |
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_cameraSearchQrSubscription = cameraSearchQr?.listen((text) { |
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if (text.isNotEmpty) { |
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setState(() { |
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code = text; |
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}); |
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} |
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}); |
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await controller.initialize(); |
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return controller; |
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} |
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@override |
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void initState() { |
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_controller = _createController(); |
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super.initState(); |
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} |
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@override |
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Widget build(final BuildContext context) => Scaffold( |
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appBar: AppBar( |
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backgroundColor: Theme.of(context).colorScheme.inversePrimary, |
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title: const Text('Отсканируйте qr код пароля приложения'), |
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), |
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body: Center( |
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child: Column( |
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mainAxisAlignment: MainAxisAlignment.center, |
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children: <Widget>[ |
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FutureBuilder( |
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future: _controller, |
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builder: (final context, final snapshot) { |
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if (snapshot.hasData) { |
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if (code != null) { |
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String? url; |
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try { |
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print(code); |
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url = code; |
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if (url == null) { |
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throw const InvalidQRcodeException(); |
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} |
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final match = LoginQRcode.tryParse(url); |
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if (match == null) { |
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throw const InvalidQRcodeException(); |
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} |
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_cameraSearchQrSubscription?.cancel(); |
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LoginCheckServerStatusRoute.withCredentials( |
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serverUrl: match.serverURL, |
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loginName: match.username, |
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password: match.password, |
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).pushReplacement(context); |
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} catch (e, s) { |
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if (_lastErrorURL != url) { |
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code = ''; |
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debugPrint(e.toString()); |
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debugPrint(s.toString()); |
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_lastErrorURL = url; |
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NeonError.showSnackbar(context, e); |
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} |
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} |
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} |
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return Expanded( |
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child: Stack( |
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children: [ |
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SizedBox( |
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width: double.maxFinite, |
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height: double.maxFinite, |
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child: snapshot.data!.buildPreview(), |
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// builder: (final context, final constraints) => AspectRatio( |
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// aspectRatio: max(constraints.maxHeight, constraints.maxWidth) / |
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// min(constraints.maxHeight, constraints.maxWidth), |
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// child: snapshot.data!.buildPreview(), |
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// ), |
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), |
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ClipPath( |
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clipper: InvertedClipper(), |
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child: Container( |
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width: double.maxFinite, |
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height: double.maxFinite, |
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color: Colors.blue.withOpacity(0.7), |
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), |
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), |
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], |
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), |
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); |
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} else if (snapshot.hasError) { |
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return Text(snapshot.error.toString()); |
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} |
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return const CircularProgressIndicator(); |
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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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} |
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class InvertedClipper extends CustomClipper<Path> { |
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@override |
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Path getClip(final Size size) { |
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final clipSize = min(size.width, size.height) * 0.6; |
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return Path() |
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..addRect(Rect.fromLTWH(0, 0, size.width, size.height)) |
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..addRect(Rect.fromLTWH((size.width / 2) - clipSize / 2, (size.height / 2) - clipSize / 2, clipSize, clipSize)) |
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..fillType = PathFillType.evenOdd; |
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} |
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@override |
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bool shouldReclip(final CustomClipper<Path> oldClipper) => true; |
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} |
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