完成了终端应用

README.md

@@ -1,4 +1,5 @@
 # vissh
+
 SSH-based visual Linux administration tool
 
 Waiting for commit

analysis_options.yaml

@@ -10,6 +10,7 @@
 analyzer:
   errors:
     use_build_context_synchronously: ignore
+    library_private_types_in_public_api: ignore
 include: package:flutter_lints/flutter.yaml
 
 linter:

android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET"/>
+    
     <application
         android:label="vissh"
         android:name="${applicationName}"
@@ -11,6 +13,7 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
+            android:enableOnBackInvokedCallback="true"
             android:windowSoftInputMode="adjustResize">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user

lib/main.dart

@@ -1,9 +1,12 @@
 import 'package:dartssh2/dartssh2.dart';
 import 'package:flutter/material.dart';
-import 'widgets/draggable_window.dart';
+import 'package:vissh/pages/terminal_page.dart';
-import 'models/window_data.dart';
+import 'package:vissh/widgets/draggable_window.dart';
-import 'widgets/taskbar.dart';
+import 'package:vissh/models/window_data.dart';
-import 'pages/login_page.dart';
+import 'package:vissh/widgets/taskbar.dart';
+import 'package:vissh/pages/login_page.dart';
+import 'package:vissh/models/credentials.dart';
+import 'package:flutter/services.dart';
 
 void main() {
   runApp(const MyApp());
@@ -23,8 +26,13 @@ class MyApp extends StatelessWidget {
 
 class WindowManager extends StatefulWidget {
   final SSHClient sshClient;
-  final String host;
+  final SSHCredentials credentials;
-  const WindowManager({super.key, required this.sshClient, required this.host});
+
+  const WindowManager({
+    super.key,
+    required this.sshClient,
+    required this.credentials,
+  });
 
   @override
   State<WindowManager> createState() => _WindowManagerState();
@@ -40,6 +48,7 @@ class _WindowManagerState extends State<WindowManager> {
 
   @override
   void initState() {
+    SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: [SystemUiOverlay.bottom]);
     super.initState();
     _verifyConnection();
   }
@@ -65,7 +74,7 @@ class _WindowManagerState extends State<WindowManager> {
     _addWindow(
       'File Explorer',
       const Offset(100, 100),
-      const Center(
+      (isActive, onSessionEnd) => const Center(
         child: Text('View your files...', style: TextStyle(color: Colors.white)),
       ),
       Icons.folder_open,
@@ -73,15 +82,17 @@ class _WindowManagerState extends State<WindowManager> {
     _addWindow(
       'Terminal',
       const Offset(150, 150),
-      Center(
+      (isActive, onSessionEnd) => TerminalPage(
-        child: Text('SSH connected to: ${widget.host}',
+        credentials: widget.credentials,
-            style: const TextStyle(color: Colors.white)),
+        isActive: isActive,
+        onSessionEnd: onSessionEnd,
       ),
-      Icons.web,
+      Icons.terminal,
     );
   }
 
-  void _addWindow(String title, Offset position, Widget child, IconData icon) {
+  void _addWindow(
+      String title, Offset position, Widget Function(bool, VoidCallback) child, IconData icon) {
     setState(() {
       final id = 'window_${_nextWindowId++}';
       _windows.add(
@@ -89,7 +100,7 @@ class _WindowManagerState extends State<WindowManager> {
           id: id,
           title: title,
           position: position,
-          size: const Size(400, 300),
+          size: const Size(700, 500),
           child: child,
           icon: icon,
         ),
@@ -105,7 +116,6 @@ class _WindowManagerState extends State<WindowManager> {
       if (window.isMinimized) {
         window.isMinimized = false;
       }
-
       if (windowIndex != _windows.length - 1) {
         final window = _windows.removeAt(windowIndex);
         _windows.add(window);
@@ -180,13 +190,11 @@ class _WindowManagerState extends State<WindowManager> {
   @override
   Widget build(BuildContext context) {
     if (!_isVerified) {
-      // --- Win11 风格的验证界面 ---
       bool hasError = _verificationFailedMessage.isNotEmpty;
-
       return Scaffold(
-        backgroundColor: const Color(0xff0078D4), // Win11 蓝色背景
+        backgroundColor: const Color(0xff0078D4),
         body: Container(
-            decoration: const BoxDecoration(
+          decoration: const BoxDecoration(
             image: DecorationImage(
               image: NetworkImage('https://www.meowdream.cn/background.jpg'),
               fit: BoxFit.cover,
@@ -197,9 +205,8 @@ class _WindowManagerState extends State<WindowManager> {
               mainAxisAlignment: MainAxisAlignment.center,
               children: [
                 const SizedBox(height: 120),
-                
                 hasError
-                    ? Icon(Icons.error_outline, color: Colors.redAccent, size: 48)
+                    ? const Icon(Icons.error_outline, color: Colors.redAccent, size: 48)
                     : SizedBox(
                         width: 48,
                         height: 48,
@@ -209,7 +216,6 @@ class _WindowManagerState extends State<WindowManager> {
                         ),
                       ),
                 const SizedBox(height: 40),
-
                 Text(
                   _verificationMessage,
                   style: const TextStyle(
@@ -219,7 +225,6 @@ class _WindowManagerState extends State<WindowManager> {
                   ),
                 ),
                 const SizedBox(height: 10),
-
                 if (hasError)
                   Padding(
                     padding: const EdgeInsets.symmetric(horizontal: 40.0),
@@ -232,10 +237,7 @@ class _WindowManagerState extends State<WindowManager> {
                       ),
                     ),
                   ),
-
+                if (hasError) const SizedBox(height: 16),
-                if (hasError)
-                  SizedBox(height: 16),
-
                 if (hasError)
                   TextButton(
                     onPressed: () {
@@ -249,7 +251,7 @@ class _WindowManagerState extends State<WindowManager> {
                       shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(4)),
                     ),
                     child: const Text(
-                      '返回',
+                      'Back',
                       style: TextStyle(
                         color: Colors.white,
                         fontSize: 16,
@@ -271,8 +273,7 @@ class _WindowManagerState extends State<WindowManager> {
     });
 
     final topMostIndex = _windows.lastIndexWhere((w) => !w.isMinimized);
-    final activeWindowId =
+    final activeWindowId = topMostIndex != -1 ? _windows[topMostIndex].id : null;
-        topMostIndex != -1 ? _windows[topMostIndex].id : null;
 
     return Scaffold(
       backgroundColor: Colors.blueGrey[900],
@@ -322,20 +323,21 @@ class _WindowManagerState extends State<WindowManager> {
         children: [
           FloatingActionButton(
             onPressed: () => _addWindow(
-              'New Window',
+              'Terminal',
-              const Offset(200, 200),
+              const Offset(150, 150),
-              const Center(
+              (isActive, onSessionEnd) => TerminalPage(
-                child: Text('This is the new window content area',
+                credentials: widget.credentials,
-                style: TextStyle(color: Colors.white))
+                isActive: isActive,
+                onSessionEnd: onSessionEnd,
               ),
-              Icons.add_circle_outline,
+              Icons.terminal,
             ),
             tooltip: 'Add New Window',
             child: const Icon(Icons.add),
           ),
           const SizedBox(height: 32),
-        ]
+        ],
-      )
+      ),
     );
   }
 }

lib/models/credentials.dart

@@ -0,0 +1,11 @@
+class SSHCredentials {
+  final String host;
+  final String username;
+  final String password;
+
+  SSHCredentials({
+    required this.host,
+    required this.username,
+    required this.password,
+  });
+}

lib/models/window_data.dart

@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 class WindowData {
   final String id;
   final String title;
-  final Widget child;
+  final Widget Function(bool isActive, VoidCallback onSessionEnd) child;
   final IconData icon;
   Offset position;
   Size size;

lib/pages/login_page.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:dartssh2/dartssh2.dart';
 import '../main.dart';
+import '../models/credentials.dart';
 
 class LoginPage extends StatefulWidget {
   const LoginPage({super.key});
@@ -27,28 +28,41 @@ class _LoginPageState extends State<LoginPage> {
         onPasswordRequest: () => _passwordController.text,
       );
 
-      // ignore: use_build_context_synchronously
+      final credentials = SSHCredentials(
+        host: _hostController.text,
+        username: _usernameController.text,
+        password: _passwordController.text,
+      );
+
+      if (!mounted) return;
+
       Navigator.push(
         context,
         MaterialPageRoute(
-            builder: (context) =>
+          builder: (context) => WindowManager(
-                WindowManager(sshClient: client, host: _hostController.text)),
+            sshClient: client,
+            credentials: credentials,
+          ),
+        ),
       );
     } catch (e) {
-      // ignore: use_build_context_synchronously
+      if (!mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(content: Text('Login Failed: $e')),
       );
     } finally {
-      setState(() {
+      if (mounted) {
-        _isLoading = false;
+        setState(() {
-      });
+          _isLoading = false;
+        });
+      }
     }
   }
 
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      backgroundColor: const Color(0xff0078D4),
       body: Container(
         decoration: const BoxDecoration(
           image: DecorationImage(
@@ -58,10 +72,10 @@ class _LoginPageState extends State<LoginPage> {
         ),
         child: Center(
           child: Container(
-            padding: const EdgeInsets.all(20.0),
+            padding: const EdgeInsets.fromLTRB(40, 20, 40, 20),
             width: 300,
             decoration: BoxDecoration(
-              color: Colors.black.withValues(alpha: 0.7),
+              color: Colors.black.withValues(alpha: 0.4),
               borderRadius: BorderRadius.circular(10),
             ),
             child: Column(

lib/pages/terminal_page.dart

@@ -0,0 +1,168 @@
+import 'dart:async';
+import 'dart:convert';
+import 'package:dartssh2/dartssh2.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:xterm/xterm.dart';
+import '../models/credentials.dart';
+
+class TerminalPage extends StatefulWidget {
+  final SSHCredentials credentials;
+  final bool isActive;
+  final VoidCallback onSessionEnd;
+
+  const TerminalPage({
+    super.key,
+    required this.credentials,
+    required this.isActive,
+    required this.onSessionEnd,
+  });
+
+  @override
+  _TerminalPageState createState() => _TerminalPageState();
+}
+
+class _TerminalPageState extends State<TerminalPage> {
+  final Terminal terminal = Terminal(maxLines: 10000);
+  final FocusNode _focusNode = FocusNode();
+  SSHClient? client;
+  SSHSession? shell;
+
+  @override
+  void initState() {
+    super.initState();
+    _startSshShell();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted && widget.isActive) {
+        _focusNode.requestFocus();
+      }
+    });
+  }
+
+  @override
+  void didUpdateWidget(covariant TerminalPage oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.isActive && !oldWidget.isActive) {
+      _focusNode.requestFocus();
+    } else if (!widget.isActive && oldWidget.isActive) {
+      _focusNode.unfocus();
+    }
+  }
+
+  Future<void> _startSshShell() async {
+    try {
+      client = SSHClient(
+        await SSHSocket.connect(widget.credentials.host, 22),
+        username: widget.credentials.username,
+        onPasswordRequest: () => widget.credentials.password,
+      );
+
+      shell = await client!.shell(
+        pty: SSHPtyConfig(
+          width: terminal.viewWidth,
+          height: terminal.viewHeight,
+        ),
+      );
+
+      terminal.onOutput = (data) {
+        shell?.write(utf8.encode(data));
+      };
+
+      terminal.onResize = (width, height, pixelWidth, pixelHeight) {
+        shell?.resizeTerminal(width, height);
+      };
+
+      shell?.stdout.listen((data) {
+        terminal.write(utf8.decode(data));
+      });
+
+      shell?.stderr.listen((data) {
+        terminal.write(utf8.decode(data));
+      });
+
+      await shell?.done;
+      if (mounted) {
+        widget.onSessionEnd();
+      }
+
+    } catch (e) {
+      if (mounted) {
+        terminal.write('Error: $e');
+        widget.onSessionEnd();
+      }
+    }
+  }
+
+  TerminalKey? _mapLogicalKey(LogicalKeyboardKey key) {
+    final keyMap = {
+      LogicalKeyboardKey.enter: TerminalKey.enter,
+      LogicalKeyboardKey.backspace: TerminalKey.backspace,
+      LogicalKeyboardKey.arrowUp: TerminalKey.arrowUp,
+      LogicalKeyboardKey.arrowDown: TerminalKey.arrowDown,
+      LogicalKeyboardKey.arrowLeft: TerminalKey.arrowLeft,
+      LogicalKeyboardKey.arrowRight: TerminalKey.arrowRight,
+      LogicalKeyboardKey.tab: TerminalKey.tab,
+      LogicalKeyboardKey.escape: TerminalKey.escape,
+      LogicalKeyboardKey.delete: TerminalKey.delete,
+      LogicalKeyboardKey.home: TerminalKey.home,
+      LogicalKeyboardKey.end: TerminalKey.end,
+      LogicalKeyboardKey.pageUp: TerminalKey.pageUp,
+      LogicalKeyboardKey.pageDown: TerminalKey.pageDown,
+      LogicalKeyboardKey.insert: TerminalKey.insert,
+      LogicalKeyboardKey.f1: TerminalKey.f1,
+      LogicalKeyboardKey.f2: TerminalKey.f2,
+      LogicalKeyboardKey.f3: TerminalKey.f3,
+      LogicalKeyboardKey.f4: TerminalKey.f4,
+      LogicalKeyboardKey.f5: TerminalKey.f5,
+      LogicalKeyboardKey.f6: TerminalKey.f6,
+      LogicalKeyboardKey.f7: TerminalKey.f7,
+      LogicalKeyboardKey.f8: TerminalKey.f8,
+      LogicalKeyboardKey.f9: TerminalKey.f9,
+      LogicalKeyboardKey.f10: TerminalKey.f10,
+      LogicalKeyboardKey.f11: TerminalKey.f11,
+      LogicalKeyboardKey.f12: TerminalKey.f12,
+    };
+    return keyMap[key];
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Focus(
+      focusNode: _focusNode,
+      onKeyEvent: (node, event) {
+        if (event is! KeyDownEvent) {
+          return KeyEventResult.ignored;
+        }
+
+        final terminalKey = _mapLogicalKey(event.logicalKey);
+
+        if (terminalKey != null) {
+          terminal.keyInput(
+            terminalKey,
+            ctrl: HardwareKeyboard.instance.isControlPressed,
+            shift: HardwareKeyboard.instance.isShiftPressed,
+            alt: HardwareKeyboard.instance.isAltPressed,
+          );
+          return KeyEventResult.handled;
+        } else if (event.character != null && event.character!.isNotEmpty) {
+          terminal.textInput(event.character!);
+          return KeyEventResult.handled;
+        }
+
+        return KeyEventResult.ignored;
+      },
+      child: TerminalView(
+        terminal,
+        autofocus: false,
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _focusNode.dispose();
+    shell?.close();
+    client?.close();
+    super.dispose();
+  }
+}

lib/widgets/draggable_window.dart

@@ -11,7 +11,7 @@ class DraggableWindow extends StatefulWidget {
   final Offset initialPosition;
   final Size initialSize;
   final String title;
-  final Widget child;
+  final Widget Function(bool isActive, VoidCallback onSessionEnd) child;
   final IconData icon;
   final bool isActive;
   final bool isMaximized;
@@ -152,7 +152,7 @@ class _DraggableWindowState extends State<DraggableWindow> {
         _top = 0;
         _left = 0;
         _width = screenSize.width;
-        _height = screenSize.height - 40;
+        _height = screenSize.height - 48;
         _isMaximized = true;
       }
     });
@@ -227,7 +227,11 @@ class _DraggableWindowState extends State<DraggableWindow> {
                             child: Column(
                               children: [
                                 _buildTitleBar(),
-                                Expanded(child: widget.child),
+                                Expanded(
+                                  child: ClipRect(
+                                    child: widget.child(widget.isActive, () => widget.onClose(widget.id)),
+                                  )
+                                ),
                               ],
                             ),
                           ),

pubspec.yaml

@@ -12,6 +12,7 @@ dependencies:
     sdk: flutter
   cupertino_icons: ^1.0.8
   dartssh2: ^2.13.0
+  xterm: ^4.0.0
 
 dev_dependencies:
   flutter_test: