feat(flutter): 接入分类记录收藏与下载授权

lib/pages/favorites/favorites_binding.dart

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+// Author: fruit.com.cn
+
+import '../../core/data/services/favorite_controller.dart';
+
+/// 收藏页依赖装配。
+class FavoritesBinding {
+  /// 从服务端刷新收藏列表。
+  Future<void> load(FavoriteController favorites) => favorites.load();
+}

lib/pages/favorites/favorites_page.dart

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+// Author: fruit.com.cn
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../../core/data/models/drama.dart';
+import '../../core/data/services/auth_controller.dart';
+import '../../core/data/services/favorite_controller.dart';
+import '../../core/formatting/error_text.dart';
+import '../../core/widgets/auth_gate.dart';
+import '../../core/widgets/library_drama_tile.dart';
+import '../../l10n/app_localizations.dart';
+import '../drama_detail/drama_detail_view.dart';
+import 'favorites_binding.dart';
+
+/// 独立我的收藏页。
+class FavoritesPage extends StatefulWidget {
+  const FavoritesPage({super.key});
+
+  @override
+  State<FavoritesPage> createState() => _FavoritesPageState();
+}
+
+class _FavoritesPageState extends State<FavoritesPage> {
+  bool _requested = false;
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    final signedIn = context.watch<AuthController>().isSignedIn;
+    if (!signedIn) {
+      _requested = false;
+      return;
+    }
+    if (_requested) return;
+    _requested = true;
+    final favorites = context.read<FavoriteController>();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) unawaited(FavoritesBinding().load(favorites));
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    final signedIn = context.watch<AuthController>().isSignedIn;
+    return Scaffold(
+      backgroundColor: const Color(0xFF0B0C10),
+      appBar: AppBar(
+        backgroundColor: const Color(0xFF0B0C10),
+        foregroundColor: Colors.white,
+        title: Text(l10n.myFavorites),
+      ),
+      body: signedIn
+          ? _FavoritesBody(favorites: context.watch<FavoriteController>())
+          : const AuthGatePanel(),
+    );
+  }
+}
+
+class _FavoritesBody extends StatelessWidget {
+  const _FavoritesBody({required this.favorites});
+
+  final FavoriteController favorites;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    if (favorites.loading && favorites.cards.isEmpty) {
+      return const Center(child: CircularProgressIndicator());
+    }
+    if (favorites.error != null && favorites.cards.isEmpty) {
+      return Center(
+        key: const Key('favorites-error'),
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 32),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Text(
+                errorText(l10n, favorites.error, l10n.favoritesError),
+                textAlign: TextAlign.center,
+                style: const TextStyle(color: Colors.white70),
+              ),
+              const SizedBox(height: 14),
+              FilledButton(
+                key: const Key('favorites-retry'),
+                onPressed: () => unawaited(favorites.load()),
+                child: Text(l10n.retry),
+              ),
+            ],
+          ),
+        ),
+      );
+    }
+    if (favorites.cards.isEmpty) {
+      return Center(
+        key: const Key('favorites-empty'),
+        child: Text(
+          l10n.noFavorites,
+          style: const TextStyle(color: Colors.white70),
+        ),
+      );
+    }
+    return RefreshIndicator(
+      onRefresh: favorites.load,
+      child: ListView.separated(
+        padding: const EdgeInsets.fromLTRB(16, 12, 16, 28),
+        itemCount: favorites.cards.length,
+        separatorBuilder: (_, _) => const SizedBox(height: 10),
+        itemBuilder: (context, index) {
+          final drama = favorites.cards[index];
+          return LibraryDramaTile(
+            key: ValueKey('favorite-card-${drama.id}'),
+            drama: drama,
+            onTap: () => _open(context, drama),
+            trailing: IconButton(
+              key: ValueKey('favorite-remove-${drama.id}'),
+              tooltip: l10n.remove,
+              onPressed: () => _remove(context, drama.id),
+              icon: const Icon(
+                Icons.favorite_rounded,
+                color: Color(0xFFD74A7D),
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+
+  Future<void> _open(BuildContext context, Drama drama) async {
+    await Navigator.of(context).push<void>(
+      MaterialPageRoute(builder: (_) => DramaDetailPage(drama: drama)),
+    );
+  }
+
+  Future<void> _remove(BuildContext context, String dramaId) async {
+    final ok = await favorites.remove(dramaId);
+    if (ok || !context.mounted) return;
+    final l10n = AppLocalizations.of(context)!;
+    ScaffoldMessenger.of(
+      context,
+    ).showSnackBar(SnackBar(content: Text(l10n.favoriteToggleFailed)));
+  }
+}