feat(android): bundle GeckoView and bump version to 1.0.2

lib/main.dart

@@ -1,10 +1,7 @@
 import 'dart:async';
 
-import 'package:file_selector/file_selector.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:webview_flutter/webview_flutter.dart';
-import 'package:webview_flutter_android/webview_flutter_android.dart';
 
 import 'config.dart';
 
@@ -53,176 +50,53 @@ class HomePage extends StatefulWidget {
 }
 
 class _HomePageState extends State<HomePage> {
-  /// 原生下载通道（MainActivity 中用系统 DownloadManager 实现）
-  static const MethodChannel _downloadsChannel = MethodChannel(
-    'dsh.workbench/downloads',
-  );
-
-  static final Uri _siteUri = Uri.parse(kSiteUrl);
-
-  late final WebViewController _controller;
+  MethodChannel? _channel;
   bool _loading = true;
   String? _loadError;
 
-  @override
-  void initState() {
-    super.initState();
-    _controller = _buildController();
-  }
-
-  WebViewController _buildController() {
-    final controller = WebViewController()
-      ..setJavaScriptMode(JavaScriptMode.unrestricted)
-      ..setBackgroundColor(const Color(kThemeColorValue))
-      ..setNavigationDelegate(
-        NavigationDelegate(
-          onPageStarted: (_) {
-            if (mounted) {
-              setState(() {
-                _loading = true;
-                _loadError = null;
-              });
-            }
-          },
-          onPageFinished: (_) {
-            if (mounted) setState(() => _loading = false);
-          },
-          onWebResourceError: (error) {
-            // 只把主文档加载失败视作页面错误；子资源错误（图片等）
-            // 以及被新导航打断（ERR_ABORTED）的情况交给页面自行处理
-            if (!(error.isForMainFrame ?? false)) return;
-            if (error.description.contains('ERR_ABORTED')) return;
-            if (mounted) {
-              setState(() {
-                _loading = false;
-                _loadError = error.description;
-              });
-            }
-          },
-          onNavigationRequest: _onNavigationRequest,
-        ),
-      )
-      ..loadRequest(Uri.parse(kSiteUrl));
-
-    // Android 专属能力：文件选择器（上传）、原生 JS 对话框（alert/confirm）
-    final platform = controller.platform;
-    if (platform is AndroidWebViewController) {
-      platform
-        ..setOnShowFileSelector(_onShowFileSelector)
-        ..setOnJavaScriptAlertDialog(_onJavaScriptAlert)
-        ..setOnJavaScriptConfirmDialog(_onJavaScriptConfirm);
-    }
-    return controller;
-  }
-
-  /// 面板用 window.location.assign 触发下载（文件/目录 ZIP/备份包），
-  /// 这里拦下来交给原生 DownloadManager（携带登录 Cookie），WebView 停留原页。
-  NavigationDecision _onNavigationRequest(NavigationRequest request) {
-    final uri = Uri.tryParse(request.url);
-    if (uri != null && _isPanelDownload(uri)) {
-      _startDownload(uri);
-      return NavigationDecision.prevent;
-    }
-    return NavigationDecision.navigate;
-  }
-
-  bool _isPanelDownload(Uri uri) {
-    if (uri.host != _siteUri.host) return false;
-    // 工作区文件/目录 ZIP 下载
-    if (uri.path.endsWith('/api/ws/download')) return true;
-    // 配置备份包下载
-    if (uri.path.endsWith('/backups') &&
-        uri.queryParameters.containsKey('download')) {
-      return true;
-    }
-    return false;
-  }
-
-  Future<void> _startDownload(Uri uri) async {
-    try {
-      await _downloadsChannel.invokeMethod<bool>('download', {
-        'url': uri.toString(),
-      });
-    } on PlatformException catch (e) {
-      if (mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(content: Text('下载失败：${e.message ?? '未知错误'}')),
-        );
+  Future<void> _onViewCreated(int id) async {
+    final channel = MethodChannel('dsh.workbench/gecko/$id');
+    _channel = channel;
+    channel.setMethodCallHandler((call) async {
+      if (!mounted) return;
+      switch (call.method) {
+        case 'onPageStarted':
+          setState(() {
+            _loading = true;
+            _loadError = null;
+          });
+        case 'onPageFinished':
+          setState(() => _loading = false);
+        case 'onLoadError':
+          setState(() {
+            _loading = false;
+            _loadError = call.arguments as String? ?? '页面加载失败';
+          });
+        case 'onDownloadError':
+          ScaffoldMessenger.of(context)
+              .showSnackBar(SnackBar(content: Text('下载失败：${call.arguments}')));
       }
-    }
+    });
+    await _invoke('load');
   }
 
-  /// WebView 里的 <input type="file"> 上传（工作区上传/备份导入）。
-  /// Android 的类型过滤一次只支持单一 MIME 或单一扩展名，
-  /// 多约束时退化为不限类型，避免选择器异常。
-  Future<List<String>> _onShowFileSelector(FileSelectorParams params) async {
-    final typeGroups = <XTypeGroup>[];
-    final mimes = params.acceptTypes.where((t) => t.contains('/')).toList();
-    if (mimes.length == 1) {
-      typeGroups.add(XTypeGroup(mimeTypes: mimes));
-    } else {
-      final exts = params.acceptTypes
-          .where((t) => t.startsWith('.'))
-          .map((t) => t.toLowerCase())
-          .toList();
-      if (exts.length == 1) typeGroups.add(XTypeGroup(extensions: exts));
+  Future<T?> _invoke<T>(String method) async {
+    try {
+      return await _channel?.invokeMethod<T>(method);
+    } on PlatformException catch (error) {
+      if (mounted) {
+        setState(() {
+          _loading = false;
+          _loadError = error.message ?? '浏览器启动失败';
+        });
+      }
+      return null;
     }
-
-    if (params.mode == FileSelectorMode.openMultiple) {
-      final files = await openFiles(acceptedTypeGroups: typeGroups);
-      return files.map((f) => f.path).toList();
-    }
-    final file = await openFile(acceptedTypeGroups: typeGroups);
-    return file == null ? const <String>[] : [file.path];
-  }
-
-  /// 面板少量路径仍使用 window.alert / window.confirm，
-  /// 未注册回调时 WebView 会静默返回 false，必须在这里补上。
-  Future<void> _onJavaScriptAlert(JavaScriptAlertDialogRequest request) async {
-    if (!mounted) return;
-    await showDialog<void>(
-      context: context,
-      builder: (context) => AlertDialog(
-        content: Text(request.message),
-        actions: [
-          TextButton(
-            onPressed: () => Navigator.of(context).pop(),
-            child: const Text('确定'),
-          ),
-        ],
-      ),
-    );
-  }
-
-  Future<bool> _onJavaScriptConfirm(
-    JavaScriptConfirmDialogRequest request,
-  ) async {
-    if (!mounted) return false;
-    final confirmed = await showDialog<bool>(
-      context: context,
-      builder: (context) => AlertDialog(
-        content: Text(request.message),
-        actions: [
-          TextButton(
-            onPressed: () => Navigator.of(context).pop(false),
-            child: const Text('取消'),
-          ),
-          FilledButton(
-            onPressed: () => Navigator.of(context).pop(true),
-            child: const Text('确定'),
-          ),
-        ],
-      ),
-    );
-    return confirmed ?? false;
   }
 
   Future<void> _onPopInvoked(bool didPop, Object? result) async {
     if (didPop) return;
-    // 先回退 WebView 历史（SPA 内部导航），没有历史再退出应用
-    if (await _controller.canGoBack()) {
-      await _controller.goBack();
-    } else {
+    if (await _invoke<bool>('goBack') == false && mounted) {
       await SystemNavigator.pop();
     }
   }
@@ -232,7 +106,13 @@ class _HomePageState extends State<HomePage> {
       _loadError = null;
       _loading = true;
     });
-    unawaited(_controller.reload());
+    unawaited(_invoke<void>('reload'));
+  }
+
+  @override
+  void dispose() {
+    _channel?.setMethodCallHandler(null);
+    super.dispose();
   }
 
   @override
@@ -245,7 +125,12 @@ class _HomePageState extends State<HomePage> {
         body: SafeArea(
           child: Stack(
             children: [
-              WebViewWidget(controller: _controller),
+              AndroidView(
+                viewType: 'dsh.workbench/gecko',
+                creationParams: const {'url': kSiteUrl},
+                creationParamsCodec: const StandardMessageCodec(),
+                onPlatformViewCreated: _onViewCreated,
+              ),
               if (_loadError != null)
                 _ErrorView(message: _loadError!, onRetry: _retry)
               else if (_loading)