[Phase 40] ChatWindow 2차 파셜 클래스 분할 (94.5% 감소)

4,767줄 ChatWindow.xaml.cs를 7개 파셜 파일로 추가 분할
메인 파일: 4,767줄 → 262줄 (94.5% 감소)
전체 ChatWindow 파셜 파일: 15개

- ChatWindow.Controls.cs (595줄): 사용자정보, 스크롤, 제목편집, 탭전환
- ChatWindow.WorkFolder.cs (359줄): 작업폴더, 폴더 설정
- ChatWindow.PermissionMenu.cs (498줄): 권한, 파일첨부, 사이드바
- ChatWindow.ConversationList.cs (747줄): 대화목록, 제목편집, 검색
- ChatWindow.Sending.cs (720줄): 전송, 편집모드, 타이머
- ChatWindow.HelpCommands.cs (157줄): /help 도움말
- ChatWindow.ResponseHandling.cs (1,494줄): 응답재생성, 스트리밍, 토스트
- 빌드: 경고 0, 오류 0

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/AxCopilot/Views/ChatWindow.PermissionMenu.cs

@@ -0,0 +1,498 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using AxCopilot.Models;
+using AxCopilot.Services;
+
+namespace AxCopilot.Views;
+
+public partial class ChatWindow
+{
+    // ─── 권한 메뉴 ─────────────────────────────────────────────────────────
+
+    private void BtnPermission_Click(object sender, RoutedEventArgs e)
+    {
+        if (PermissionPopup == null) return;
+        PermissionItems.Children.Clear();
+
+        var levels = new (string Level, string Sym, string Desc, string Color)[] {
+            ("Ask",  "\uE8D7", "매번 확인 — 파일 접근 시 사용자에게 묻습니다", "#4B5EFC"),
+            ("Auto", "\uE73E", "자동 허용 — 파일을 자동으로 읽고 씁니다", "#DD6B20"),
+            ("Deny", "\uE711", "접근 차단 — 파일 접근을 허용하지 않습니다", "#C50F1F"),
+        };
+        var current = Llm.FilePermission;
+        foreach (var (level, sym, desc, color) in levels)
+        {
+            var isActive = level.Equals(current, StringComparison.OrdinalIgnoreCase);
+
+            // 라운드 코너 템플릿 (기본 Button 크롬 제거)
+            var template = new ControlTemplate(typeof(Button));
+            var bdFactory = new FrameworkElementFactory(typeof(Border));
+            bdFactory.SetValue(Border.BackgroundProperty, Brushes.Transparent);
+            bdFactory.SetValue(Border.CornerRadiusProperty, new CornerRadius(8));
+            bdFactory.SetValue(Border.PaddingProperty, new Thickness(12, 8, 12, 8));
+            bdFactory.Name = "Bd";
+            var cpFactory = new FrameworkElementFactory(typeof(ContentPresenter));
+            cpFactory.SetValue(ContentPresenter.HorizontalAlignmentProperty, HorizontalAlignment.Left);
+            cpFactory.SetValue(ContentPresenter.VerticalAlignmentProperty, VerticalAlignment.Center);
+            bdFactory.AppendChild(cpFactory);
+            template.VisualTree = bdFactory;
+            // 호버 효과
+            var hoverTrigger = new Trigger { Property = UIElement.IsMouseOverProperty, Value = true };
+            hoverTrigger.Setters.Add(new Setter(Border.BackgroundProperty,
+                new SolidColorBrush(Color.FromArgb(0x18, 0xFF, 0xFF, 0xFF)), "Bd"));
+            template.Triggers.Add(hoverTrigger);
+
+            var btn = new Button
+            {
+                Template = template,
+                BorderThickness = new Thickness(0),
+                Cursor = Cursors.Hand,
+                HorizontalContentAlignment = HorizontalAlignment.Left,
+                Margin = new Thickness(0, 1, 0, 1),
+            };
+            ApplyHoverScaleAnimation(btn, 1.02);
+            var sp = new StackPanel { Orientation = Orientation.Horizontal };
+            // 커스텀 체크 아이콘
+            sp.Children.Add(CreateCheckIcon(isActive));
+            sp.Children.Add(new TextBlock
+            {
+                Text = sym, FontFamily = ThemeResourceHelper.SegoeMdl2, FontSize = 14,
+                Foreground = BrushFromHex(color),
+                VerticalAlignment = VerticalAlignment.Center, Margin = new Thickness(0, 0, 10, 0),
+            });
+            var textStack = new StackPanel();
+            textStack.Children.Add(new TextBlock
+            {
+                Text = level, FontSize = 13, FontWeight = FontWeights.Bold,
+                Foreground = BrushFromHex(color),
+            });
+            textStack.Children.Add(new TextBlock
+            {
+                Text = desc, FontSize = 11,
+                Foreground = ThemeResourceHelper.Secondary(this),
+                TextWrapping = TextWrapping.Wrap,
+                MaxWidth = 220,
+            });
+            sp.Children.Add(textStack);
+            btn.Content = sp;
+
+            var capturedLevel = level;
+            btn.Click += (_, _) =>
+            {
+                Llm.FilePermission = capturedLevel;
+                UpdatePermissionUI();
+                SaveConversationSettings();
+                PermissionPopup.IsOpen = false;
+            };
+            PermissionItems.Children.Add(btn);
+        }
+        PermissionPopup.IsOpen = true;
+    }
+
+    private bool _autoWarningDismissed; // Auto 경고 배너 사용자가 닫았는지
+
+    private void BtnAutoWarningClose_Click(object sender, RoutedEventArgs e)
+    {
+        _autoWarningDismissed = true;
+        if (AutoPermissionWarning != null)
+            AutoPermissionWarning.Visibility = Visibility.Collapsed;
+    }
+
+    private void UpdatePermissionUI()
+    {
+        if (PermissionLabel == null || PermissionIcon == null) return;
+        var perm = Llm.FilePermission;
+        PermissionLabel.Text = perm;
+        PermissionIcon.Text = perm switch
+        {
+            "Auto" => "\uE73E",
+            "Deny" => "\uE711",
+            _      => "\uE8D7",
+        };
+
+        // Auto 모드일 때 경고 색상 + 배너 표시
+        if (perm == "Auto")
+        {
+            var warnColor = new SolidColorBrush(Color.FromRgb(0xDD, 0x6B, 0x20));
+            PermissionLabel.Foreground = warnColor;
+            PermissionIcon.Foreground = warnColor;
+            // Auto 전환 시 새 대화에서만 1회 필수 표시 (기존 대화에서 이미 Auto였으면 숨김)
+            ChatConversation? convForWarn;
+            lock (_convLock) convForWarn = _currentConversation;
+            var isExisting = convForWarn != null && convForWarn.Messages.Count > 0 && convForWarn.Permission == "Auto";
+            if (AutoPermissionWarning != null && !_autoWarningDismissed && !isExisting)
+                AutoPermissionWarning.Visibility = Visibility.Visible;
+        }
+        else
+        {
+            _autoWarningDismissed = false; // Auto가 아닌 모드로 전환하면 리셋
+            var defaultFg = ThemeResourceHelper.Secondary(this);
+            var iconFg = perm == "Deny" ? new SolidColorBrush(Color.FromRgb(0xC5, 0x0F, 0x1F))
+                                        : new SolidColorBrush(Color.FromRgb(0x4B, 0x5E, 0xFC)); // Ask = 파란색
+            PermissionLabel.Foreground = defaultFg;
+            PermissionIcon.Foreground = iconFg;
+            if (AutoPermissionWarning != null)
+                AutoPermissionWarning.Visibility = Visibility.Collapsed;
+        }
+    }
+
+    // ──── 데이터 활용 수준 메뉴 ────
+
+    private void BtnDataUsage_Click(object sender, System.Windows.Input.MouseButtonEventArgs e)
+    {
+        if (DataUsagePopup == null) return;
+        DataUsageItems.Children.Clear();
+
+        var options = new (string Key, string Sym, string Label, string Desc, string Color)[]
+        {
+            ("active",  "\uE9F5", "적극 활용", "폴더 내 문서를 자동 탐색하여 보고서 작성에 적극 활용합니다", "#107C10"),
+            ("passive", "\uE8FD", "소극 활용", "사용자가 요청할 때만 폴더 데이터를 참조합니다", "#D97706"),
+            ("none",    "\uE8D8", "활용하지 않음", "폴더 내 문서를 읽거나 참조하지 않습니다", "#9CA3AF"),
+        };
+
+        foreach (var (key, sym, label, desc, color) in options)
+        {
+            var isActive = key.Equals(_folderDataUsage, StringComparison.OrdinalIgnoreCase);
+
+            var template = new ControlTemplate(typeof(Button));
+            var bdFactory = new FrameworkElementFactory(typeof(Border));
+            bdFactory.SetValue(Border.BackgroundProperty, Brushes.Transparent);
+            bdFactory.SetValue(Border.CornerRadiusProperty, new CornerRadius(8));
+            bdFactory.SetValue(Border.PaddingProperty, new Thickness(12, 8, 12, 8));
+            bdFactory.Name = "Bd";
+            var cpFactory = new FrameworkElementFactory(typeof(ContentPresenter));
+            cpFactory.SetValue(ContentPresenter.HorizontalAlignmentProperty, HorizontalAlignment.Left);
+            cpFactory.SetValue(ContentPresenter.VerticalAlignmentProperty, VerticalAlignment.Center);
+            bdFactory.AppendChild(cpFactory);
+            template.VisualTree = bdFactory;
+            var hoverTrigger = new Trigger { Property = UIElement.IsMouseOverProperty, Value = true };
+            hoverTrigger.Setters.Add(new Setter(Border.BackgroundProperty,
+                new SolidColorBrush(Color.FromArgb(0x18, 0xFF, 0xFF, 0xFF)), "Bd"));
+            template.Triggers.Add(hoverTrigger);
+
+            var btn = new Button
+            {
+                Template = template,
+                BorderThickness = new Thickness(0),
+                Cursor = Cursors.Hand,
+                HorizontalContentAlignment = HorizontalAlignment.Left,
+                Margin = new Thickness(0, 1, 0, 1),
+            };
+            ApplyHoverScaleAnimation(btn, 1.02);
+            var sp = new StackPanel { Orientation = Orientation.Horizontal };
+            // 커스텀 체크 아이콘
+            sp.Children.Add(CreateCheckIcon(isActive));
+            sp.Children.Add(new TextBlock
+            {
+                Text = sym, FontFamily = ThemeResourceHelper.SegoeMdl2, FontSize = 14,
+                Foreground = BrushFromHex(color),
+                VerticalAlignment = VerticalAlignment.Center, Margin = new Thickness(0, 0, 10, 0),
+            });
+            var textStack = new StackPanel();
+            textStack.Children.Add(new TextBlock
+            {
+                Text = label, FontSize = 13, FontWeight = FontWeights.Bold,
+                Foreground = BrushFromHex(color),
+            });
+            textStack.Children.Add(new TextBlock
+            {
+                Text = desc, FontSize = 11,
+                Foreground = ThemeResourceHelper.Secondary(this),
+                TextWrapping = TextWrapping.Wrap,
+                MaxWidth = 240,
+            });
+            sp.Children.Add(textStack);
+            btn.Content = sp;
+
+            var capturedKey = key;
+            btn.Click += (_, _) =>
+            {
+                _folderDataUsage = capturedKey;
+                UpdateDataUsageUI();
+                SaveConversationSettings();
+                DataUsagePopup.IsOpen = false;
+            };
+            DataUsageItems.Children.Add(btn);
+        }
+        DataUsagePopup.IsOpen = true;
+    }
+
+    private void UpdateDataUsageUI()
+    {
+        if (DataUsageLabel == null || DataUsageIcon == null) return;
+        var (label, icon, color) = _folderDataUsage switch
+        {
+            "passive" => ("소극", "\uE8FD", "#D97706"),
+            "none"    => ("미사용", "\uE8D8", "#9CA3AF"),
+            _         => ("적극", "\uE9F5", "#107C10"),
+        };
+        DataUsageLabel.Text = label;
+        DataUsageIcon.Text = icon;
+        DataUsageIcon.Foreground = BrushFromHex(color);
+    }
+
+    /// <summary>Cowork/Code 탭 진입 시 설정의 기본 권한을 적용.</summary>
+    private void ApplyTabDefaultPermission()
+    {
+        if (_activeTab == "Chat")
+        {
+            // Chat 탭: 경고 배너 숨기고 기본 Ask 모드로 복원
+            Llm.FilePermission = "Ask";
+            UpdatePermissionUI();
+            return;
+        }
+        var defaultPerm = Llm.DefaultAgentPermission;
+        if (!string.IsNullOrEmpty(defaultPerm))
+        {
+            Llm.FilePermission = defaultPerm;
+            UpdatePermissionUI();
+        }
+    }
+
+    // ─── 파일 첨부 ─────────────────────────────────────────────────────────
+
+    private void BtnAttach_Click(object sender, RoutedEventArgs e)
+    {
+        var dlg = new Microsoft.Win32.OpenFileDialog
+        {
+            Multiselect = true,
+            Title = "첨부할 파일을 선택하세요",
+            Filter = "모든 파일 (*.*)|*.*|텍스트 (*.txt;*.md;*.csv)|*.txt;*.md;*.csv|코드 (*.cs;*.py;*.js;*.ts)|*.cs;*.py;*.js;*.ts",
+        };
+
+        // 작업 폴더가 있으면 초기 경로 설정
+        var workFolder = GetCurrentWorkFolder();
+        if (!string.IsNullOrEmpty(workFolder) && System.IO.Directory.Exists(workFolder))
+            dlg.InitialDirectory = workFolder;
+
+        if (dlg.ShowDialog() != true) return;
+
+        foreach (var file in dlg.FileNames)
+            AddAttachedFile(file);
+    }
+
+    private static readonly HashSet<string> ImageExtensions = new(StringComparer.OrdinalIgnoreCase)
+    {
+        ".png", ".jpg", ".jpeg", ".gif", ".bmp", ".webp"
+    };
+
+    private void AddAttachedFile(string filePath)
+    {
+        if (_attachedFiles.Contains(filePath)) return;
+
+        // 파일 크기 제한 (10MB)
+        try
+        {
+            var fi = new System.IO.FileInfo(filePath);
+            if (fi.Length > 10 * 1024 * 1024)
+            {
+                CustomMessageBox.Show($"파일이 너무 큽니다 (10MB 초과):\n{fi.Name}", "첨부 제한", MessageBoxButton.OK, MessageBoxImage.Warning);
+                return;
+            }
+
+            // 이미지 파일 → Vision API용 base64 변환
+            var ext = fi.Extension.ToLowerInvariant();
+            if (ImageExtensions.Contains(ext) && Llm.EnableImageInput)
+            {
+                var maxKb = Llm.MaxImageSizeKb;
+                if (maxKb <= 0) maxKb = 5120;
+                if (fi.Length > maxKb * 1024)
+                {
+                    CustomMessageBox.Show($"이미지가 너무 큽니다 ({fi.Length / 1024}KB, 최대 {maxKb}KB).",
+                        "이미지 크기 초과", MessageBoxButton.OK, MessageBoxImage.Warning);
+                    return;
+                }
+
+                var bytes = System.IO.File.ReadAllBytes(filePath);
+                var mimeType = ext switch
+                {
+                    ".jpg" or ".jpeg" => "image/jpeg",
+                    ".gif" => "image/gif",
+                    ".bmp" => "image/bmp",
+                    ".webp" => "image/webp",
+                    _ => "image/png",
+                };
+                var attachment = new ImageAttachment
+                {
+                    Base64 = Convert.ToBase64String(bytes),
+                    MimeType = mimeType,
+                    FileName = fi.Name,
+                };
+
+                // 중복 확인
+                if (_pendingImages.Any(i => i.FileName == attachment.FileName)) return;
+
+                _pendingImages.Add(attachment);
+                AddImagePreview(attachment);
+                return;
+            }
+        }
+        catch (Exception) { return; }
+
+        _attachedFiles.Add(filePath);
+        RefreshAttachedFilesUI();
+    }
+
+    private void RemoveAttachedFile(string filePath)
+    {
+        _attachedFiles.Remove(filePath);
+        RefreshAttachedFilesUI();
+    }
+
+    private void RefreshAttachedFilesUI()
+    {
+        AttachedFilesPanel.Items.Clear();
+        if (_attachedFiles.Count == 0)
+        {
+            AttachedFilesPanel.Visibility = Visibility.Collapsed;
+            return;
+        }
+
+        AttachedFilesPanel.Visibility = Visibility.Visible;
+        var secondaryBrush = ThemeResourceHelper.Secondary(this);
+        var hintBg = ThemeResourceHelper.Hint(this);
+
+        foreach (var file in _attachedFiles.ToList())
+        {
+            var fileName = System.IO.Path.GetFileName(file);
+            var capturedFile = file;
+
+            var chip = new Border
+            {
+                Background = hintBg,
+                CornerRadius = new CornerRadius(6),
+                Padding = new Thickness(8, 4, 4, 4),
+                Margin = new Thickness(0, 0, 4, 4),
+                Cursor = Cursors.Hand,
+            };
+
+            var sp = new StackPanel { Orientation = Orientation.Horizontal };
+            sp.Children.Add(new TextBlock
+            {
+                Text = "\uE8A5", FontFamily = ThemeResourceHelper.SegoeMdl2, FontSize = 10,
+                Foreground = secondaryBrush, VerticalAlignment = VerticalAlignment.Center, Margin = new Thickness(0, 0, 4, 0),
+            });
+            sp.Children.Add(new TextBlock
+            {
+                Text = fileName, FontSize = 11, Foreground = secondaryBrush,
+                VerticalAlignment = VerticalAlignment.Center, MaxWidth = 150, TextTrimming = TextTrimming.CharacterEllipsis,
+                ToolTip = file,
+            });
+            var removeBtn = new Button
+            {
+                Content = new TextBlock { Text = "\uE711", FontFamily = ThemeResourceHelper.SegoeMdl2, FontSize = 8, Foreground = secondaryBrush },
+                Background = Brushes.Transparent, BorderThickness = new Thickness(0),
+                Cursor = Cursors.Hand, Padding = new Thickness(4, 2, 4, 2), Margin = new Thickness(2, 0, 0, 0),
+            };
+            removeBtn.Click += (_, _) => RemoveAttachedFile(capturedFile);
+            sp.Children.Add(removeBtn);
+            chip.Child = sp;
+            AttachedFilesPanel.Items.Add(chip);
+        }
+    }
+
+    /// <summary>첨부 파일 내용을 시스템 메시지로 변환합니다.</summary>
+    private string BuildFileContextPrompt()
+    {
+        if (_attachedFiles.Count == 0) return "";
+
+        var sb = new System.Text.StringBuilder();
+        sb.AppendLine("\n[첨부 파일 컨텍스트]");
+
+        foreach (var file in _attachedFiles)
+        {
+            try
+            {
+                var ext = System.IO.Path.GetExtension(file).ToLowerInvariant();
+                var isBinary = ext is ".exe" or ".dll" or ".zip" or ".7z" or ".rar" or ".tar" or ".gz"
+                    or ".png" or ".jpg" or ".jpeg" or ".gif" or ".bmp" or ".ico" or ".webp" or ".svg"
+                    or ".pdf" or ".docx" or ".xlsx" or ".pptx" or ".doc" or ".xls" or ".ppt"
+                    or ".mp3" or ".mp4" or ".avi" or ".mov" or ".mkv" or ".wav" or ".flac"
+                    or ".psd" or ".ai" or ".sketch" or ".fig"
+                    or ".msi" or ".iso" or ".img" or ".bin" or ".dat" or ".db" or ".sqlite";
+                if (isBinary)
+                {
+                    sb.AppendLine($"\n--- {System.IO.Path.GetFileName(file)} (바이너리 파일, 내용 생략) ---");
+                    continue;
+                }
+
+                var content = System.IO.File.ReadAllText(file);
+                // 최대 8000자로 제한
+                if (content.Length > 8000)
+                    content = content[..8000] + "\n... (이하 생략)";
+
+                sb.AppendLine($"\n--- {System.IO.Path.GetFileName(file)} ---");
+                sb.AppendLine(content);
+            }
+            catch (Exception ex)
+            {
+                sb.AppendLine($"\n--- {System.IO.Path.GetFileName(file)} (읽기 실패: {ex.Message}) ---");
+            }
+        }
+
+        return sb.ToString();
+    }
+
+    private void ResizeGrip_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
+    {
+        var newW = Width + e.HorizontalChange;
+        var newH = Height + e.VerticalChange;
+        if (newW >= MinWidth) Width = newW;
+        if (newH >= MinHeight) Height = newH;
+    }
+
+    // ─── 사이드바 토글 ───────────────────────────────────────────────────
+
+    private void BtnToggleSidebar_Click(object sender, RoutedEventArgs e)
+    {
+        _sidebarVisible = !_sidebarVisible;
+        if (_sidebarVisible)
+        {
+            // 사이드바 열기, 아이콘 바 숨기기
+            IconBarColumn.Width = new GridLength(0);
+            IconBarPanel.Visibility = Visibility.Collapsed;
+            SidebarPanel.Visibility = Visibility.Visible;
+            ToggleSidebarIcon.Text = "\uE76B";
+            AnimateSidebar(0, 270, () => SidebarColumn.MinWidth = 200);
+        }
+        else
+        {
+            // 사이드바 닫기, 아이콘 바 표시
+            SidebarColumn.MinWidth = 0;
+            ToggleSidebarIcon.Text = "\uE76C";
+            AnimateSidebar(270, 0, () =>
+            {
+                SidebarPanel.Visibility = Visibility.Collapsed;
+                IconBarColumn.Width = new GridLength(52);
+                IconBarPanel.Visibility = Visibility.Visible;
+            });
+        }
+    }
+
+    private void AnimateSidebar(double from, double to, Action? onComplete = null)
+    {
+        var duration = 200.0;
+        var start = DateTime.UtcNow;
+        var timer = new System.Windows.Threading.DispatcherTimer { Interval = TimeSpan.FromMilliseconds(10) };
+        EventHandler tickHandler = null!;
+        tickHandler = (_, _) =>
+        {
+            var elapsed = (DateTime.UtcNow - start).TotalMilliseconds;
+            var t = Math.Min(elapsed / duration, 1.0);
+            t = 1 - (1 - t) * (1 - t);
+            SidebarColumn.Width = new GridLength(from + (to - from) * t);
+            if (elapsed >= duration)
+            {
+                timer.Stop();
+                timer.Tick -= tickHandler;
+                SidebarColumn.Width = new GridLength(to);
+                onComplete?.Invoke();
+            }
+        };
+        timer.Tick += tickHandler;
+        timer.Start();
+    }
+}