opt.

- add help for ssh virt keys
- rm unused lib

lib/view/page/sftp/local.dart

@@ -76,18 +76,6 @@ class _SFTPDownloadedPageState extends State<SFTPDownloadedPage> {
       bottomNavigationBar: SafeArea(
         child: _buildPath(),
       ),
-      floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
-      floatingActionButton: FloatingActionButton(
-        onPressed: (() {
-          if (_path!.path == _prefixPath) {
-            showSnackBar(context, Text(_s.alreadyLastDir));
-            return;
-          }
-          _path!.update('..');
-          setState(() {});
-        }),
-        child: const Icon(Icons.keyboard_arrow_left),
-      ),
     );
   }
 
@@ -112,10 +100,22 @@ class _SFTPDownloadedPageState extends State<SFTPDownloadedPage> {
     }
     final dir = Directory(_path!.path);
     final files = dir.listSync();
+    final canGoBack = _path!.path != _prefixPath;
     return ListView.builder(
-      itemCount: files.length,
+      itemCount: canGoBack ? files.length + 1 : files.length,
       padding: const EdgeInsets.symmetric(vertical: 3, horizontal: 7),
       itemBuilder: (context, index) {
+        if (index == 0 && canGoBack) {
+          return RoundRectCard(ListTile(
+            leading: const Icon(Icons.keyboard_arrow_left),
+            title: const Text('..'),
+            onTap: () {
+              _path!.update('..');
+              setState(() {});
+            },
+          ));
+        }
+        index = canGoBack ? index - 1 : index;
         var file = files[index];
         var fileName = file.path.split('/').last;
         var stat = file.statSync();

lib/view/page/ssh/term.dart

@@ -39,11 +39,9 @@ class _SSHPageState extends State<SSHPage> {
   final _setting = locator<SettingStore>();
   late final _terminal = Terminal(inputHandler: _keyboard);
   final TerminalController _terminalController = TerminalController();
-  final ContextMenuController _menuController = ContextMenuController();
   final List<List<VirtKey>> _virtKeysList = [];
 
   late MediaQueryData _media;
-  late TextStyle _menuTextStyle;
   late S _s;
   late TerminalStyle _terminalStyle;
   late TerminalTheme _terminalTheme;
@@ -75,7 +73,6 @@ class _SSHPageState extends State<SSHPage> {
     super.didChangeDependencies();
     _isDark = isDarkMode(context);
     _media = MediaQuery.of(context);
-    _menuTextStyle = TextStyle(color: contentColor.resolve(context));
     _s = S.of(context)!;
     _terminalTheme = _isDark ? termDarkTheme : termLightTheme;
     // Calculate virtkey width / height
@@ -118,8 +115,7 @@ class _SSHPageState extends State<SSHPage> {
         textStyle: _terminalStyle,
         theme: _terminalTheme,
         deleteDetection: isIOS,
-        onTapUp: _onTapUp,
-        autoFocus: true,
+        autofocus: true,
         keyboardAppearance: _isDark ? Brightness.dark : Brightness.light,
       ),
     );
@@ -231,13 +227,12 @@ class _SSHPageState extends State<SSHPage> {
       case VirtualKeyFunc.backspace:
         _terminal.keyInput(TerminalKey.backspace);
         break;
-      case VirtualKeyFunc.paste:
-        _paste();
-        break;
-      case VirtualKeyFunc.copy:
+      case VirtualKeyFunc.clipboard:
         final selected = terminalSelected;
         if (selected != null) {
           copy2Clipboard(selected);
+        } else {
+          _paste();
         }
         break;
       case VirtualKeyFunc.snippet:
@@ -290,58 +285,12 @@ class _SSHPageState extends State<SSHPage> {
     return _terminal.buffer.getText(range);
   }
 
-  void _onTapUp(TapUpDetails details, CellOffset offset) {
-    if (_menuController.isShown) {
-      _menuController.remove();
-      return;
-    }
-    final selected = terminalSelected;
-    final children = <Widget>[
-      // TextButton(
-      //   onPressed: () {
-      //     _paste();
-      //   },
-      //   child: Text(_s.paste),
-      // ),
-    ];
-    if (selected?.trim().isNotEmpty ?? false) {
-      children.add(
-        TextButton(
-          child: Text(
-            _s.copy,
-            style: _menuTextStyle,
-          ),
-          onPressed: () {
-            _terminalController.setSelection(null);
-            if (selected != null) {
-              copy2Clipboard(selected);
-            }
-            _menuController.remove();
-          },
-        ),
-      );
-    }
-    if (children.isEmpty) {
-      return;
-    }
-    _menuController.show(
-      context: context,
-      contextMenuBuilder: (context) {
-        return TextSelectionToolbar(
-          anchorAbove: details.globalPosition,
-          anchorBelow: details.globalPosition,
-          children: children,
-        );
-      },
-    );
-  }
-
   void _write(String p0) {
     _terminal.write('$p0\r\n');
   }
 
   void _initVirtKeys() {
-    final virtKeys = _setting.sshVirtKeys.fetch()!;
+    final virtKeys = List<VirtKey>.from(_setting.sshVirtKeys.fetchRaw());
 
     for (int len = 0; len < virtKeys.length; len += 7) {
       if (len + 7 > virtKeys.length) {

lib/view/page/ssh/virt_key_setting.dart

@@ -1,12 +1,13 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:nil/nil.dart';
 import 'package:toolbox/core/extension/order.dart';
 import 'package:toolbox/core/utils/platform.dart';
 import 'package:toolbox/core/utils/ui.dart';
 import 'package:toolbox/data/model/ssh/virtual_key.dart';
+import 'package:toolbox/data/res/ui.dart';
 import 'package:toolbox/data/store/setting.dart';
 import 'package:toolbox/locator.dart';
+import 'package:toolbox/view/widget/round_rect_card.dart';
 
 class SSHVirtKeySettingPage extends StatefulWidget {
   const SSHVirtKeySettingPage({Key? key}) : super(key: key);
@@ -44,17 +45,18 @@ class _SSHVirtKeySettingPageState extends State<SSHVirtKeySettingPage> {
     final disabled = VirtKey.values.where((e) => !keys.contains(e)).toList();
     final allKeys = [...keys, ...disabled];
     return ReorderableListView.builder(
-      padding: const EdgeInsets.fromLTRB(11, 3, 0, 3),
+      padding: const EdgeInsets.all(7),
       itemBuilder: (_, idx) {
         final key = allKeys[idx];
-        return ListTile(
-          key: ValueKey(idx),
-          title: _buildTitle(key),
-          leading: _buildCheckBox(keys, key, idx, idx < keys.length),
-          trailing: isDesktop
-              ? nil
-              : const Icon(Icons.drag_handle, color: Colors.grey),
-        );
+        final help = key.help(_s);
+        return RoundRectCard(
+            key: ValueKey(idx),
+            ListTile(
+              title: _buildTitle(key),
+              subtitle: help == null ? null : Text(help, style: grey),
+              leading: _buildCheckBox(keys, key, idx, idx < keys.length),
+              trailing: isDesktop ? null : const Icon(Icons.drag_handle),
+            ));
       },
       itemCount: allKeys.length,
       onReorder: (o, n) {
@@ -70,12 +72,8 @@ class _SSHVirtKeySettingPageState extends State<SSHVirtKeySettingPage> {
 
   Widget _buildTitle(VirtKey key) {
     return key.icon == null
-        ? Text(
-            key.text,
-            textAlign: TextAlign.center,
-          )
+        ? Text(key.text)
         : Row(
-            mainAxisAlignment: MainAxisAlignment.center,
             children: [
               Text(key.text),
               const SizedBox(width: 10),