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107 lines
3.7 KiB
Dart
107 lines
3.7 KiB
Dart
/// ============================================================
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/// 闲言APP — 认证感知Mixin
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/// 创建时间: 2026-05-28
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/// 更新时间: 2026-06-12
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/// 作用: 统一401认证错误处理，监听auth状态变化自动重载数据
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/// 上次更新: 从 mixins/ 子目录上移至 shared/ 目录
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/// ============================================================
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import 'package:flutter/cupertino.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:xianyan/core/theme/app_theme.dart';
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import 'package:xianyan/core/theme/app_spacing.dart';
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import 'package:xianyan/core/theme/app_typography.dart';
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import 'package:xianyan/core/theme/app_radius.dart';
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import 'package:xianyan/core/providers/auth_state.dart';
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import 'package:xianyan/core/router/app_nav_extension.dart';
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import 'package:xianyan/core/router/app_routes.dart';
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mixin AuthAwareMixin<T extends ConsumerStatefulWidget> on ConsumerState<T> {
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bool _authInitialized = false;
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ProviderSubscription<AuthState>? _authSubscription;
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/// 子类重写此方法，在登录状态变化时重新加载数据
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void onAuthChanged(bool isLoggedIn);
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/// 构建认证错误引导界面
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Widget buildAuthErrorView({
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String title = '需要登录查看',
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String subtitle = '登录后即可查看专属内容',
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String actionLabel = '登录',
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}) {
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final ext = AppTheme.ext(context);
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(AppSpacing.xl),
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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: 64,
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height: 64,
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decoration: BoxDecoration(
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color: ext.accent.withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(20),
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),
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child: const Center(
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child: Text('🔒', style: TextStyle(fontSize: 28)),
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),
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),
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const SizedBox(height: AppSpacing.md),
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Text(
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title,
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style: AppTypography.title3.copyWith(
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color: ext.textPrimary,
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: AppSpacing.xs),
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Text(
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subtitle,
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style: AppTypography.subhead.copyWith(color: ext.textSecondary),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: AppSpacing.lg),
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SizedBox(
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width: 200,
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child: CupertinoButton(
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color: ext.accent,
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borderRadius: AppRadius.lgBorder,
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padding: const EdgeInsets.symmetric(vertical: AppSpacing.sm),
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onPressed: () => context.appPush(AppRoutes.login),
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child: Text(
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actionLabel,
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style: AppTypography.subhead.copyWith(
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color: ext.textInverse,
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fontWeight: FontWeight.w600,
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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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/// 自动关闭认证监听器，子类dispose时无需手动调用
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/// 若子类也override dispose，必须调用super.dispose()
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@override
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void dispose() {
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_authSubscription?.close();
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_authSubscription = null;
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super.dispose();
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}
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/// 初始化认证监听，应在initState的addPostFrameCallback中调用
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void initAuthListener() {
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if (_authInitialized) return;
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_authInitialized = true;
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_authSubscription = ref.listenManual(authStateProvider, (prev, next) {
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if (prev?.isLoggedIn != next.isLoggedIn) {
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onAuthChanged(next.isLoggedIn);
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}
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}, fireImmediately: false);
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}
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}
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