Flow.Launcher/Flow.Launcher.Avalonia/ViewModel/ResultViewModel.cs
Hongtao Zhang f3d3f80db8 Add DynamicData sorting, result persistence, and Windows Shell icon loading
- Use DynamicData SourceList with automatic sorting by score descending
- Add ReplaceResults() with EditDiff for minimal UI updates (reduces flickering)
- Keep previous results visible while typing until new results arrive
- Add ImageLoader with Windows Shell API (IShellItemImageFactory) for exe/ico icons
- Use AlphaFormat.Unpremul to correctly render transparent icons without white borders
- Query all plugins in parallel and merge/sort results globally
2026-01-15 00:26:27 -08:00

56 lines
1.6 KiB
C#

using System.Threading.Tasks;
using Avalonia.Media;
using CommunityToolkit.Mvvm.ComponentModel;
using Flow.Launcher.Avalonia.Helper;
using Flow.Launcher.Infrastructure.UserSettings;
using Flow.Launcher.Plugin;
namespace Flow.Launcher.Avalonia.ViewModel;
/// <summary>
/// ViewModel for a single result item.
/// </summary>
public partial class ResultViewModel : ObservableObject
{
[ObservableProperty]
private string _title = string.Empty;
[ObservableProperty]
private string _subTitle = string.Empty;
[ObservableProperty]
private string _iconPath = string.Empty;
[ObservableProperty]
private bool _isSelected;
[ObservableProperty]
private Settings? _settings;
[ObservableProperty]
private int _score;
/// <summary>
/// The underlying plugin result. Used for executing actions and accessing additional properties.
/// </summary>
public Result? PluginResult { get; set; }
// Computed properties for display
public bool ShowIcon => !string.IsNullOrEmpty(IconPath);
public bool ShowSubTitle => !string.IsNullOrEmpty(SubTitle);
/// <summary>
/// Gets the query suggestion text for autocomplete, if available.
/// </summary>
public string? QuerySuggestionText => PluginResult?.AutoCompleteText;
// Cached task for the image - created once per IconPath
private Task<IImage?>? _imageTask;
/// <summary>
/// The icon image task. Use with Avalonia's ^ stream binding operator.
/// Returns a cached task to avoid re-loading on every property access.
/// </summary>
public Task<IImage?> Image => _imageTask ??= ImageLoader.LoadAsync(IconPath);
}