125 lines
4.5 KiB
Dart
125 lines
4.5 KiB
Dart
import 'package:flutter/material.dart';
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import '../network/connectivity_service.dart';
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import '../theme/app_theme.dart';
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/// [child] را میپوشاند و هنگامِ قطعِ اینترنت یک اوورلیِ «اتصال برقرار نیست» با
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/// دکمهی «تلاش مجدد» نشان میدهد. بهمحضِ برقراریِ اتصال، خودش کنار میرود.
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class OfflineGate extends StatelessWidget {
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final Widget child;
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const OfflineGate({super.key, required this.child});
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@override
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Widget build(BuildContext context) {
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return Stack(
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children: [
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child,
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ValueListenableBuilder<bool>(
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valueListenable: ConnectivityService.I.online,
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builder: (context, online, _) =>
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online ? const SizedBox.shrink() : const _OfflineOverlay(),
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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 _OfflineOverlay extends StatefulWidget {
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const _OfflineOverlay();
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@override
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State<_OfflineOverlay> createState() => _OfflineOverlayState();
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}
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class _OfflineOverlayState extends State<_OfflineOverlay> {
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bool _busy = false;
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Future<void> _retry() async {
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setState(() => _busy = true);
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await ConnectivityService.I.recheck();
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if (mounted) setState(() => _busy = false);
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}
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@override
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Widget build(BuildContext context) {
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return Positioned.fill(
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child: Material(
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color: Colors.black.withValues(alpha: 0.82),
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child: Center(
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child: Container(
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margin: const EdgeInsets.symmetric(horizontal: 32),
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padding: const EdgeInsets.fromLTRB(24, 28, 24, 22),
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decoration: BoxDecoration(
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gradient: const LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [AppColors.lapisMid, AppColors.lapisLo],
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),
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borderRadius: BorderRadius.circular(20),
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border: Border.all(color: AppColors.gold, width: 2),
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boxShadow: const [
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BoxShadow(color: Colors.black54, blurRadius: 20),
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],
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 72,
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height: 72,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: AppColors.bgDark,
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border: Border.all(color: AppColors.goldDark, width: 2),
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),
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child: const Icon(Icons.wifi_off_rounded,
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color: AppColors.gold, size: 38),
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),
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const SizedBox(height: 16),
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const Text(
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'اتصال به اینترنت برقرار نیست',
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textAlign: TextAlign.center,
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style: TextStyle(
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color: AppColors.gold,
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 8),
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const Text(
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'اینترنتِ دستگاهت را بررسی کن و دوباره تلاش کن.',
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textAlign: TextAlign.center,
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style: TextStyle(color: Colors.white70, fontSize: 13),
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),
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const SizedBox(height: 22),
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SizedBox(
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width: double.infinity,
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child: ElevatedButton.icon(
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onPressed: _busy ? null : _retry,
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style: ElevatedButton.styleFrom(
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backgroundColor: AppColors.gold,
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foregroundColor: AppColors.bg,
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padding: const EdgeInsets.symmetric(vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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icon: _busy
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? const SizedBox(
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width: 18,
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height: 18,
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child: CircularProgressIndicator(
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strokeWidth: 2, color: AppColors.bg),
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)
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: const Icon(Icons.refresh, size: 20),
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label: Text(_busy ? 'در حال بررسی…' : 'تلاش مجدد'),
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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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