145 lines
4.9 KiB
Dart
145 lines
4.9 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:real_estate_mobile/core/constants/app_colors.dart';
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import 'package:real_estate_mobile/core/services/twitter_auth_service.dart';
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import 'package:webview_flutter/webview_flutter.dart';
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/// Opens a webview for Twitter OAuth 2.0 PKCE login.
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/// Returns the user data map on success, or null on cancel/failure.
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class TwitterLoginScreen extends StatefulWidget {
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const TwitterLoginScreen({super.key});
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@override
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State<TwitterLoginScreen> createState() => _TwitterLoginScreenState();
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}
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class _TwitterLoginScreenState extends State<TwitterLoginScreen> {
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late final TwitterAuthService _authService;
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late final WebViewController _webViewController;
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bool _isExchanging = false;
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@override
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void initState() {
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super.initState();
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_authService = TwitterAuthService();
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_webViewController = WebViewController()
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..setJavaScriptMode(JavaScriptMode.unrestricted)
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..setUserAgent(
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'Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) '
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'AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 '
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'Mobile/15E148 Safari/604.1',
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)
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..setNavigationDelegate(NavigationDelegate(
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onPageStarted: (url) {
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final code = _authService.extractCodeFromUrl(url);
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if (code != null) {
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_handleCode(code);
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}
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},
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onNavigationRequest: (request) {
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final code = _authService.extractCodeFromUrl(request.url);
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if (code != null) {
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_handleCode(code);
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return NavigationDecision.prevent;
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}
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// User cancelled — Twitter redirects to main page or login
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final url = request.url;
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if (url == 'https://twitter.com/' ||
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url == 'https://x.com/' ||
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url.startsWith('https://twitter.com/home') ||
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url.startsWith('https://x.com/home') ||
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url.startsWith('https://twitter.com/i/flow/login') ||
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url.startsWith('https://x.com/i/flow/login')) {
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Navigator.pop(context, null);
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return NavigationDecision.prevent;
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}
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return NavigationDecision.navigate;
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},
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))
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..loadRequest(Uri.parse(_authService.authorizationUrl));
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}
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Future<void> _handleCode(String code) async {
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if (_isExchanging) return;
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setState(() => _isExchanging = true);
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try {
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final userData = await _authService.exchangeCodeForUser(code);
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if (mounted) Navigator.pop(context, userData);
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('X login failed. Please try again.')),
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);
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Navigator.pop(context, null);
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}
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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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return Scaffold(
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backgroundColor: Colors.white,
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body: SafeArea(
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child: Column(
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children: [
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// Minimal top bar with back button
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SizedBox(
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height: 44,
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child: Row(
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children: [
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IconButton(
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icon: const Icon(Icons.arrow_back_ios_new_rounded,
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size: 18, color: AppColors.primaryDark),
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onPressed: () => Navigator.pop(context, null),
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),
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const Expanded(
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child: Text(
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'Sign in with X',
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textAlign: TextAlign.center,
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style: TextStyle(
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fontFamily: 'Fractul',
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fontSize: 15,
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fontWeight: FontWeight.w600,
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color: AppColors.primaryDark,
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),
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),
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),
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const SizedBox(width: 48),
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],
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),
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),
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// Webview
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Expanded(
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child: Stack(
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children: [
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WebViewWidget(controller: _webViewController),
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if (_isExchanging)
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Container(
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color: Colors.white.withValues(alpha: 0.8),
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child: const Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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CircularProgressIndicator(
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color: AppColors.accentOrange),
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SizedBox(height: 16),
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Text('Signing in...',
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style: TextStyle(
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fontFamily: 'Fractul',
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fontSize: 14,
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color: AppColors.primaryDark,
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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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),
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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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