UI & Layout Plugins

These interfaces customize the main search panel UI, result columns, filters, previews, themes, and translations.

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1. ISidebarFilterProvider (Sidebar Filter)

Appends categorizing tags/filters in the left sidebar (e.g. file size ranges, modified dates).

public interface ISidebarFilterProvider
{
    IEnumerable<FilterGroup> GetFilterGroups();
}

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2. IResultColumnProvider (Custom Grid Columns)

Injects customized ListView columns displaying additional file details (e.g. extension, formatted sizes).

public interface IResultColumnProvider
{
    IEnumerable<ColumnDefinition> GetColumns();
    string GetCellValue(ISearchResult result, string columnId);
}

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3. IFilePreviewProvider (File Previews)

Renders a custom WPF UIElement inside the QuickLook window when spacebar is pressed on supported files.

public interface IFilePreviewProvider
{
    string Name { get; }
    int Priority => 0;
    bool CanPreview(string path, bool isDir);
    UIElement CreatePreview(string path, bool isDir);
}

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4. ITranslationProvider (Localizations)

Provides localization strings for components and plugins.

public interface ITranslationProvider
{
    string Name { get; }
    IReadOnlyCollection<string> SupportedCultures { get; }
    string? Translate(string key, string culture);
}

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5. IThemeProvider (WPF Style Sheets)

Registers custom WPF resource dictionaries (XAML themes).

public interface IThemeProvider
{
    string Name { get; }
    IEnumerable<ITheme> GetThemes();
}

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6. IThumbnailProvider (Custom File Thumbnails)

Provides custom file thumbnails or icon overrides for search results.

public interface IThumbnailProvider
{
    string Id { get; }
    string Name { get; }
    bool CanProvideThumbnail(string path, bool isDir);
    ImageSource? GetThumbnail(string path, int size);
}

• CanProvideThumbnail: Returns whether this provider can generate a thumbnail/icon for the specified path and directory state.
• GetThumbnail: Generates or retrieves the ImageSource for the file preview icon at the requested pixel size.