SFTP init.

lib/data/model/app/menu_item.dart

@@ -15,7 +15,7 @@ class MenuItems {
   static const List<MenuItem> secondItems = [edit];
 
   static const ssh = MenuItem(text: 'SSH', icon: Icons.link);
-  static const sftp = MenuItem(text: 'SFTP', icon: Icons.file_present);
+  static const sftp = MenuItem(text: 'SFTP', icon: Icons.insert_drive_file);
   static const snippet = MenuItem(text: 'Snippet', icon: Icons.label);
   static const apt = MenuItem(text: 'Apt', icon: Icons.system_security_update);
   static const edit = MenuItem(text: 'Edit', icon: Icons.edit);

lib/data/model/sftp/absolute_path.dart

@@ -0,0 +1,29 @@
+class AbsolutePath {
+  String path;
+  String? _prePath;
+  AbsolutePath(this.path);
+
+  void update(String newPath) {
+    _prePath = path;
+    if (newPath == '..') {
+      path = path.substring(0, path.lastIndexOf('/'));
+      if (path == '') {
+        path = '/';
+      }
+      return;
+    }
+    if (newPath == '/') {
+      path = '/';
+      return;
+    }
+    path = path + (path.endsWith('/') ? '' : '/') + newPath;
+  }
+
+  bool undo() {
+    if (_prePath == null) {
+      return false;
+    }
+    path = _prePath!;
+    return true;
+  }
+}

lib/data/model/sftp/sftp_side_status.dart

@@ -0,0 +1,39 @@
+import 'package:dartssh2/dartssh2.dart';
+import 'package:toolbox/data/model/server/server_private_info.dart';
+import 'package:toolbox/data/model/sftp/absolute_path.dart';
+
+class SFTPSideViewStatus {
+  bool leftSelected = false;
+  bool rightSelected = false;
+  ServerPrivateInfo? leftSpi;
+  ServerPrivateInfo? rightSpi;
+  List<SftpName>? leftFiles;
+  List<SftpName>? rightFiles;
+  AbsolutePath? leftPath;
+  AbsolutePath? rightPath;
+  SftpClient? leftClient;
+  SftpClient? rightClient;
+
+  SFTPSideViewStatus();
+
+  ServerPrivateInfo? spi(bool left) => left ? leftSpi : rightSpi;
+  void setSpi(bool left, ServerPrivateInfo nSpi) =>
+      left ? leftSpi = nSpi : rightSpi = nSpi;
+
+  /// Whether the Left/Right Destination is selected.
+  bool selected(bool left) => left ? leftSelected : rightSelected;
+  void setSelect(bool left, bool nSelect) =>
+      left ? leftSelected = nSelect : rightSelected = nSelect;
+
+  List<SftpName>? files(bool left) => left ? leftFiles : rightFiles;
+  void setFiles(bool left, List<SftpName>? nFiles) =>
+      left ? leftFiles = nFiles : rightFiles = nFiles;
+
+  AbsolutePath? path(bool left) => left ? leftPath : rightPath;
+  void setPath(bool left, AbsolutePath? nPath) =>
+      left ? leftPath = nPath : rightPath = nPath;
+
+  SftpClient? client(bool left) => left ? leftClient : rightClient;
+  void setClient(bool left, SftpClient? nClient) =>
+      left ? leftClient = nClient : rightClient = nClient;
+}

lib/data/res/build_data.dart

@@ -2,9 +2,9 @@
 
 class BuildData {
   static const String name = "ServerBox";
-  static const int build = 97;
+  static const int build = 98;
   static const String engine =
-      "Flutter 2.8.1 • channel stable • https://github.com/flutter/flutter.git\nFramework • revision 77d935af4d (8 weeks ago) • 2021-12-16 08:37:33 -0800\nEngine • revision 890a5fca2e\nTools • Dart 2.15.1\n";
-  static const String buildAt = "2022-02-10 19:30:23.388434";
-  static const int modifications = 9;
+      "╔════════════════════════════════════════════════════════════════════════════╗\n║ A new version of Flutter is available!                                     ║\n║                                                                            ║\n║ To update to the latest version, run \"flutter upgrade\".                    ║\n╚════════════════════════════════════════════════════════════════════════════╝\n\nFlutter 2.8.1 • channel stable • https://github.com/flutter/flutter.git\nFramework • revision 77d935af4d (9 weeks ago) • 2021-12-16 08:37:33 -0800\nEngine • revision 890a5fca2e\nTools • Dart 2.15.1\n";
+  static const String buildAt = "2022-02-18 13:28:18.254386";
+  static const int modifications = 5;
 }