redesign for settings page

frontend/pweb/lib/controllers/settings/profile_actions.dart

@@ -0,0 +1,62 @@
+import 'package:flutter/material.dart';
+
+import 'package:pweb/controllers/auth/account_name.dart';
+import 'package:pweb/models/settings/profile_action_section.dart';
+
+
+class ProfileActionsController extends ChangeNotifier {
+  AccountNameController? _accountNameController;
+  ProfileActionSection? _expandedSection;
+
+  ProfileActionSection? get expandedSection => _expandedSection;
+  bool get isEditingName => _accountNameController?.isEditing ?? false;
+
+  bool isExpanded(ProfileActionSection section) => _expandedSection == section;
+
+  void updateAccountNameController(AccountNameController controller) {
+    if (identical(_accountNameController, controller)) {
+      return;
+    }
+    _accountNameController?.removeListener(_handleAccountNameChanged);
+    _accountNameController = controller;
+    _accountNameController?.addListener(_handleAccountNameChanged);
+  }
+
+  void toggle(ProfileActionSection section) {
+    final isOpeningSection = !isExpanded(section);
+    if (isOpeningSection) {
+      if (_accountNameController?.isBusy ?? false) {
+        return;
+      }
+      _accountNameController?.cancelEditing();
+    }
+    _expandedSection = isExpanded(section) ? null : section;
+    notifyListeners();
+  }
+
+  void toggleNameEditing() {
+    final accountNameController = _accountNameController;
+    if (accountNameController == null || accountNameController.isBusy) {
+      return;
+    }
+
+    if (accountNameController.isEditing) {
+      accountNameController.cancelEditing();
+      return;
+    }
+
+    _expandedSection = null;
+    accountNameController.startEditing();
+    notifyListeners();
+  }
+
+  void _handleAccountNameChanged() {
+    notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _accountNameController?.removeListener(_handleAccountNameChanged);
+    super.dispose();
+  }
+}