Support custom preview panel for folder results

Author: Jack251970

Plugins/Flow.Launcher.Plugin.Explorer/Search/ResultManager.cs

@@ -99,10 +99,7 @@ internal static Result CreateFolderResult(string title, string subtitle, string
                 AutoCompleteText = GetAutoCompleteText(title, query, path, ResultType.Folder),
                 TitleHighlightData = Context.API.FuzzySearch(query.Search, title).MatchData,
                 CopyText = path,
-                Preview = new Result.PreviewInfo
-                {
-                    FilePath = path,
-                },
+                PreviewPanel = new Lazy<UserControl>(() => new PreviewPanel(Settings, path, ResultType.Folder)),
                 Action = c =>
                 {
                     if (c.SpecialKeyState.ToModifierKeys() == ModifierKeys.Alt)
@@ -286,7 +283,7 @@ internal static Result CreateFileResult(string filePath, Query query, int score
                 TitleHighlightData = Context.API.FuzzySearch(query.Search, title).MatchData,
                 Score = score,
                 CopyText = filePath,
-                PreviewPanel = new Lazy<UserControl>(() => new PreviewPanel(Settings, filePath)),
+                PreviewPanel = new Lazy<UserControl>(() => new PreviewPanel(Settings, filePath, ResultType.File)),
                 Action = c =>
                 {
                     if (c.SpecialKeyState.ToModifierKeys() == ModifierKeys.Alt)
@@ -354,7 +351,6 @@ private static string GetMoreInfoToolTip(string filePath, ResultType type)
             {
                 case ResultType.Folder:
                     var folderSize = PreviewPanel.GetFolderSize(filePath);
-                    if (string.IsNullOrEmpty(folderSize)) folderSize = Context.API.GetTranslation("plugin_explorer_plugin_tooltip_more_info_unknown");
                     var folderCreatedAt = PreviewPanel.GetFolderCreatedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel);
                     var folderModifiedAt = PreviewPanel.GetFolderLastModifiedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel);
                     return string.Format(Context.API.GetTranslation("plugin_explorer_plugin_tooltip_more_info"),

Plugins/Flow.Launcher.Plugin.Explorer/Views/PreviewPanel.xaml.cs

@@ -50,7 +50,7 @@ private set
         ? Visibility.Visible
         : Visibility.Collapsed;
 
-    public PreviewPanel(Settings settings, string filePath)
+    public PreviewPanel(Settings settings, string filePath, ResultType type)
     {
         InitializeComponent();
 
@@ -60,17 +60,21 @@ public PreviewPanel(Settings settings, string filePath)
 
         if (Settings.ShowFileSizeInPreviewPanel)
         {
-            FileSize = GetFileSize(filePath);
+            FileSize = type == ResultType.File ? GetFileSize(filePath) : GetFolderSize(filePath);
         }
 
         if (Settings.ShowCreatedDateInPreviewPanel)
         {
-            CreatedAt = GetFileCreatedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel);
+            CreatedAt = type == ResultType.File ?
+                GetFileCreatedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel) :
+                GetFolderCreatedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel);
         }
 
         if (Settings.ShowModifiedDateInPreviewPanel)
         {
-            LastModifiedAt = GetFileLastModifiedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel);
+            LastModifiedAt = type == ResultType.File ? 
+                GetFileLastModifiedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel) :
+                GetFolderLastModifiedAt(filePath, Settings.PreviewPanelDateFormat, Settings.PreviewPanelTimeFormat, Settings.ShowFileAgeInPreviewPanel);
         }
 
         _ = LoadImageAsync();
@@ -126,7 +130,7 @@ public static string GetFolderSize(string folderPath)
         }
         catch (Exception)
         {
-            return string.Empty;
+            return Main.Context.API.GetTranslation("plugin_explorer_plugin_tooltip_more_info_unknown");
         }
         return ResultManager.ToReadableSize(size, 2);
     }