fix: rename file

lib/data/model/sftp/absolute_path.dart

@@ -1,35 +0,0 @@
-import 'package:fl_lib/fl_lib.dart';
-
-class AbsolutePath {
-  String _path;
-  final _prePath = <String>[];
-
-  AbsolutePath(this._path);
-
-  String get path => _path;
-
-  /// Update path, not set path
-  set path(String newPath) {
-    _prePath.add(_path);
-    if (newPath == '..') {
-      _path = _path.substring(0, _path.lastIndexOf('/'));
-      if (_path == '') {
-        _path = '/';
-      }
-      return;
-    }
-    if (newPath.startsWith('/')) {
-      _path = newPath;
-      return;
-    }
-    _path = _path.joinPath(newPath, seperator: '/');
-  }
-
-  bool undo() {
-    if (_prePath.isEmpty) {
-      return false;
-    }
-    _path = _prePath.removeLast();
-    return true;
-  }
-}

lib/data/model/sftp/browser_status.dart

@@ -1,12 +1,49 @@
 import 'package:dartssh2/dartssh2.dart';
-import 'package:server_box/data/model/sftp/absolute_path.dart';
+import 'package:fl_lib/fl_lib.dart';
+
+/// Remote server only can be linux-like system, so use '/' as seperator
+const _sep = '/';
 
 class SftpBrowserStatus {
   final List<SftpName> files = [];
-  final AbsolutePath path = AbsolutePath('/');
+  final path = _AbsolutePath(_sep);
   SftpClient? client;
 
   SftpBrowserStatus(SSHClient client) {
     client.sftp().then((value) => this.client = value);
   }
 }
+
+class _AbsolutePath {
+  String _path;
+  final _prePath = <String>[];
+
+  _AbsolutePath(this._path);
+
+  String get path => _path;
+
+  /// Update path, not set path
+  set path(String newPath) {
+    _prePath.add(_path);
+    if (newPath == '..') {
+      _path = _path.substring(0, _path.lastIndexOf(_sep));
+      if (_path == '') {
+        _path = _sep;
+      }
+      return;
+    }
+    if (newPath.startsWith(_sep)) {
+      _path = newPath;
+      return;
+    }
+    _path = _path.joinPath(newPath, seperator: _sep);
+  }
+
+  bool undo() {
+    if (_prePath.isEmpty) {
+      return false;
+    }
+    _path = _prePath.removeLast();
+    return true;
+  }
+}