Refactor path handling in UI components

- Removed redundant folder and file opening methods from AiTabView and FaceAiTabView.
- Introduced PathPickerField control to streamline path selection and opening functionality across multiple views.
- Updated FaceAiTabView and GeneralTabView to utilize PathPickerField for source and destination path selection.
- Created PathShellService to encapsulate logic for opening paths in the file explorer.
- Simplified XAML structure by replacing manual grid definitions with PathPickerField components.
- Removed unused namespaces and cleaned up code for better readability and maintainability.

imagecatalog/AvaloniaViews/AiTabView.axaml

@@ -1,6 +1,7 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:avaloniaDataGrid="clr-namespace:Avalonia.Controls;assembly=Avalonia.Controls.DataGrid"
+             xmlns:controls="clr-namespace:ImageCatalog_2.Controls"
              xmlns:iconPacks="https://github.com/MahApps/IconPacks.Avalonia"
              x:Class="ImageCatalog_2.AvaloniaViews.AiTabView"
              x:CompileBindings="False">
@@ -31,25 +32,13 @@
                                        FontWeight="SemiBold" />
                         </Grid>
 
-                        <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                            <TextBlock Grid.Column="0" Text="Sorgente:" VerticalAlignment="Center" />
-                            <TextBox Grid.Column="1"
-                                     Text="{Binding DestinationPath, Mode=OneWay}"
-                                     IsReadOnly="True"
-                                     VerticalAlignment="Center" />
-                            <Button Grid.Column="2" Width="104" Command="{Binding SelectDestinationFolderCommand}">
-                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                    <iconPacks:PackIconMaterial Kind="FolderOpenOutline" Width="14" Height="14" />
-                                    <TextBlock Text="Scegli..." />
-                                </StackPanel>
-                            </Button>
-                            <Button Grid.Column="3" Width="72" Click="OpenAiSourceFolder_Click">
-                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                    <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                    <TextBlock Text="Apri" />
-                                </StackPanel>
-                            </Button>
-                        </Grid>
+                        <controls:PathPickerField Label="Sorgente:"
+                                                  Text="{Binding DestinationPath, Mode=TwoWay}"
+                                                  IsTextReadOnly="True"
+                                                  PreferenceKey="Picker.DestinationFolder.LastPath"
+                                                  PickerTitle="Seleziona cartella sorgente AI"
+                                                  PickerMode="Folder"
+                                                  AppendDirectorySeparator="True" />
 
                         <StackPanel Orientation="Horizontal" HorizontalAlignment="Left" Spacing="8">
                             <Button Command="{Binding StartAiCommand}" Width="132">
@@ -67,22 +56,14 @@
                         </StackPanel>
 
                         <TextBlock Text="Output CSV" FontWeight="Bold" />
-                        <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                            <TextBlock Text="Percorso CSV:" VerticalAlignment="Center" Margin="0,0,8,0" Grid.Column="0" />
-                            <TextBox Text="{Binding CsvOutputPath, Mode=TwoWay}" Grid.Column="1" VerticalAlignment="Center" />
-                            <Button Width="104" Command="{Binding SelectCsvOutputCommand}" Grid.Column="2">
-                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                    <iconPacks:PackIconMaterial Kind="FileOutline" Width="14" Height="14" />
-                                    <TextBlock Text="Scegli..." />
-                                </StackPanel>
-                            </Button>
-                            <Button Width="72" Grid.Column="3" Click="OpenCsvOutputFolder_Click">
-                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                    <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                    <TextBlock Text="Apri" />
-                                </StackPanel>
-                            </Button>
-                        </Grid>
+                        <controls:PathPickerField Label="Percorso CSV:"
+                                                  Text="{Binding CsvOutputPath, Mode=TwoWay}"
+                                                  PreferenceKey="Picker.CsvOutput.LastPath"
+                                                  PickerTitle="Salva CSV"
+                                                  PickerMode="SaveFile"
+                                                  FileTypeName="CSV"
+                                                  FilePatterns="*.csv"
+                                                  DefaultExtension="csv" />
 
                         <TextBlock Text="Anteprima risultati" FontWeight="Bold" />
                         <ProgressBar Minimum="0" Maximum="100" Value="{Binding AiProgress}" Height="16" Margin="0,0,0,4" />
@@ -108,22 +89,12 @@
             <ScrollViewer VerticalScrollBarVisibility="Auto">
                 <StackPanel Margin="8" Spacing="8">
                     <TextBlock Text="Modelli" FontWeight="Bold" />
-                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                        <TextBlock Text="Cartella modelli:" VerticalAlignment="Center" Margin="0,0,8,0" Grid.Column="0" />
-                        <TextBox Text="{Binding ModelsFolderPath, Mode=TwoWay}" Grid.Column="1" VerticalAlignment="Center" />
-                        <Button Width="104" Command="{Binding SelectModelsFolderCommand}" Grid.Column="2">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="FolderOpenOutline" Width="14" Height="14" />
-                                <TextBlock Text="Scegli..." />
-                            </StackPanel>
-                        </Button>
-                        <Button Width="72" Grid.Column="3" Click="OpenModelsFolder_Click">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Cartella modelli:"
+                                              Text="{Binding ModelsFolderPath, Mode=TwoWay}"
+                                              PreferenceKey="Picker.ModelsFolder.LastPath"
+                                              PickerTitle="Seleziona cartella modelli"
+                                              PickerMode="Folder"
+                                              AppendDirectorySeparator="True" />
                 </StackPanel>
             </ScrollViewer>
         </TabItem>

imagecatalog/AvaloniaViews/AiTabView.axaml.cs

@@ -1,8 +1,4 @@
 using Avalonia.Controls;
-using Avalonia.Interactivity;
-using System.Diagnostics;
-using System.IO;
-
 namespace ImageCatalog_2.AvaloniaViews;
 
 public partial class AiTabView : Avalonia.Controls.UserControl
@@ -11,56 +7,4 @@ public partial class AiTabView : Avalonia.Controls.UserControl
     {
         InitializeComponent();
     }
-
-    private void OpenModelsFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        if (DataContext is DataModel model)
-        {
-            OpenInExplorer(model.ModelsFolderPath);
-        }
-    }
-
-    private void OpenCsvOutputFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        if (DataContext is not DataModel model)
-        {
-            return;
-        }
-
-        var directory = Path.GetDirectoryName(model.CsvOutputPath);
-        OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? model.CsvOutputPath : directory);
-    }
-
-    private void OpenAiSourceFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        if (DataContext is DataModel model)
-        {
-            OpenInExplorer(model.DestinationPath);
-        }
-    }
-
-    private static void OpenInExplorer(string? path)
-    {
-        if (string.IsNullOrWhiteSpace(path))
-        {
-            return;
-        }
-
-        var normalizedPath = path.Trim().Trim('"');
-        try
-        {
-            if (File.Exists(normalizedPath))
-            {
-                Process.Start("explorer.exe", $"/select,\"{normalizedPath}\"");
-            }
-            else if (Directory.Exists(normalizedPath))
-            {
-                Process.Start(new ProcessStartInfo { FileName = normalizedPath, UseShellExecute = true });
-            }
-        }
-        catch
-        {
-            // Ignore failures when opening Explorer.
-        }
-    }
 }

imagecatalog/AvaloniaViews/FaceAiTabView.axaml

@@ -1,6 +1,7 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:avaloniaDataGrid="clr-namespace:Avalonia.Controls;assembly=Avalonia.Controls.DataGrid"
+             xmlns:controls="clr-namespace:ImageCatalog_2.Controls"
              xmlns:iconPacks="https://github.com/MahApps/IconPacks.Avalonia"
              xmlns:converters="clr-namespace:ImageCatalog_2.Converters"
              x:Class="ImageCatalog_2.AvaloniaViews.FaceAiTabView"
@@ -37,34 +38,21 @@
                                 <TextBlock Grid.Column="4" Text="Usa --multicore in CPU e --multiprocess in GPU." VerticalAlignment="Center" TextWrapping="Wrap" Opacity="0.75" />
                             </Grid>
 
-                            <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                                <TextBlock Grid.Column="0" Text="Sorgente:" VerticalAlignment="Center" />
-                                <TextBox Grid.Column="1" Name="FaceDestinationPathTextBox" Text="{Binding DestinationPath, Mode=OneWay}" IsReadOnly="True" />
-                                <Button Grid.Column="3" Name="FaceOpenDestinationButton" Click="OpenFaceDestinationFolder_Click" Width="72" Margin="6,0,0,0">
-                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                        <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                        <TextBlock Text="Apri" />
-                                    </StackPanel>
-                                </Button>
-                            </Grid>
+                            <controls:PathPickerField Label="Sorgente:"
+                                                      Text="{Binding DestinationPath, Mode=TwoWay}"
+                                                      IsTextReadOnly="True"
+                                                      PreferenceKey="Picker.DestinationFolder.LastPath"
+                                                      PickerTitle="Seleziona cartella sorgente Face Encoder"
+                                                      PickerMode="Folder"
+                                                      AppendDirectorySeparator="True" />
 
                             <TextBlock Text="Output encodings" FontWeight="Bold" Margin="0,4,0,0" />
-                            <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                                <TextBlock Grid.Column="0" Text="Cartella out:" VerticalAlignment="Center" />
-                                <TextBox Grid.Column="1" Name="FaceOutputFolderTextBox" Text="{Binding FaceOutputFolderPath, Mode=TwoWay}" Watermark="C:\output\face_encoder" />
-                                <Button Grid.Column="2" Name="FaceSelectOutputButton" Click="SelectFaceOutputFolder_Click" Width="104" Margin="6,0,0,0">
-                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                        <iconPacks:PackIconMaterial Kind="FolderOutline" Width="14" Height="14" />
-                                        <TextBlock Text="Scegli..." />
-                                    </StackPanel>
-                                </Button>
-                                <Button Grid.Column="3" Name="FaceOpenOutputButton" Click="OpenFaceOutputFolder_Click" Width="72" Margin="6,0,0,0">
-                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                        <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                        <TextBlock Text="Apri" />
-                                    </StackPanel>
-                                </Button>
-                            </Grid>
+                            <controls:PathPickerField Label="Cartella out:"
+                                                      Text="{Binding FaceOutputFolderPath, Mode=TwoWay}"
+                                                      Watermark="C:\output\face_encoder"
+                                                      PreferenceKey="Picker.FaceOutputFolder.LastPath"
+                                                      PickerTitle="Seleziona la cartella output per encodings e log"
+                                                      PickerMode="Folder" />
                             <TextBlock Text="I file vengono creati come face_encodings_yyyyMMdd_HHmmss_nomecartella.pkl e encoder_log_yyyyMMdd_HHmmss_nomecartella.txt."
                                        TextWrapping="Wrap"
                                        Opacity="0.75" />
@@ -116,22 +104,12 @@
                                        TextWrapping="Wrap"
                                        Opacity="0.75" />
 
-                            <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                                <TextBlock Grid.Column="0" Text="Percorso:" VerticalAlignment="Center" />
-                                <TextBox Grid.Column="1" Name="FaceExecutablePathTextBox" Text="{Binding FaceExecutablePath, Mode=TwoWay}" Watermark="C:\tools\Face_Recognition_Windows" />
-                                <Button Grid.Column="2" Name="FaceSelectExecutableButton" Click="SelectFaceExecutable_Click" Width="104" Margin="6,0,0,0">
-                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                        <iconPacks:PackIconMaterial Kind="FolderOutline" Width="14" Height="14" />
-                                        <TextBlock Text="Scegli..." />
-                                    </StackPanel>
-                                </Button>
-                                <Button Grid.Column="3" Name="FaceOpenExecutableButton" Click="OpenFaceExecutableFolder_Click" Width="72" Margin="6,0,0,0">
-                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                        <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                        <TextBlock Text="Apri" />
-                                    </StackPanel>
-                                </Button>
-                            </Grid>
+                            <controls:PathPickerField Label="Percorso:"
+                                                      Text="{Binding FaceExecutablePath, Mode=TwoWay}"
+                                                      Watermark="C:\tools\Face_Recognition_Windows"
+                                                      PreferenceKey="Picker.FaceExecutableFolder.LastPath"
+                                                      PickerTitle="Seleziona la cartella Face Recognition Windows"
+                                                      PickerMode="Folder" />
                         </StackPanel>
                     </ScrollViewer>
                 </TabItem>
@@ -146,40 +124,24 @@
                                TextWrapping="Wrap" Opacity="0.8" />
 
                     <TextBlock Text="Eseguibile matcher" FontWeight="Bold" Margin="0,4,0,0" />
-                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                        <TextBlock Grid.Column="0" Text="Percorso:" VerticalAlignment="Center" />
-                        <TextBox Grid.Column="1" Name="FaceMatcherExecutablePathTextBox" Text="{Binding FaceMatcherExecutablePath, Mode=TwoWay}" Watermark="C:\tools\Face_Recognition_Windows\face_matcher.exe" />
-                        <Button Grid.Column="2" Click="SelectFaceMatcherExecutable_Click" Width="104" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="FileOutline" Width="14" Height="14" />
-                                <TextBlock Text="Scegli..." />
-                            </StackPanel>
-                        </Button>
-                        <Button Grid.Column="3" Click="OpenFaceMatcherExecutable_Click" Width="72" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Percorso:"
+                                              Text="{Binding FaceMatcherExecutablePath, Mode=TwoWay}"
+                                              Watermark="C:\tools\Face_Recognition_Windows\face_matcher.exe"
+                                              PreferenceKey="Picker.FaceMatcherExecutable.LastPath"
+                                              PickerTitle="Seleziona face_matcher.exe"
+                                              PickerMode="OpenFile"
+                                              FileTypeName="Eseguibile"
+                                              FilePatterns="*.exe" />
 
                     <TextBlock Text="Immagine da testare" FontWeight="Bold" Margin="0,4,0,0" />
-                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                        <TextBlock Grid.Column="0" Text="Immagine:" VerticalAlignment="Center" />
-                        <TextBox Grid.Column="1" Name="FaceMatcherImagePathTextBox" Text="{Binding FaceMatcherSelectedImagePath, Mode=TwoWay}" Watermark="Percorso immagine da usare per il match" />
-                        <Button Grid.Column="2" Click="SelectFaceMatcherImage_Click" Width="104" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="ImageOutline" Width="14" Height="14" />
-                                <TextBlock Text="Scegli..." />
-                            </StackPanel>
-                        </Button>
-                        <Button Grid.Column="3" Click="OpenFaceMatcherImage_Click" Width="72" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Immagine:"
+                                              Text="{Binding FaceMatcherSelectedImagePath, Mode=TwoWay}"
+                                              Watermark="Percorso immagine da usare per il match"
+                                              PreferenceKey="Picker.FaceMatcherImage.LastPath"
+                                              PickerTitle="Seleziona immagine per il match"
+                                              PickerMode="OpenFile"
+                                              FileTypeName="Immagini"
+                                              FilePatterns="*.jpg;*.jpeg;*.png;*.bmp;*.gif;*.webp" />
                     <TextBlock Text="Questa immagine resta solo runtime e non viene salvata nel file impostazioni."
                                TextWrapping="Wrap"
                                Opacity="0.75" />
@@ -193,68 +155,43 @@
                         </Border>
                     </StackPanel>
 
-                    <Grid ColumnDefinitions="Auto,*,Auto" ColumnSpacing="6">
-                        <TextBlock Grid.Column="0" Text="Destinazione attuale:" VerticalAlignment="Center" />
-                        <TextBox Grid.Column="1" Name="FaceMatcherDestinationPathTextBox" Text="{Binding DestinationPath, Mode=OneWay}" IsReadOnly="True" />
-                        <Button Grid.Column="2" Click="OpenFaceDestinationFolder_Click" Width="72" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Destinazione attuale:"
+                                              Text="{Binding DestinationPath, Mode=TwoWay}"
+                                              IsTextReadOnly="True"
+                                              PreferenceKey="Picker.DestinationFolder.LastPath"
+                                              PickerTitle="Seleziona cartella destinazione Face Matcher"
+                                              PickerMode="Folder"
+                                              AppendDirectorySeparator="True" />
 
                     <TextBlock Text="Encodings e file di appoggio" FontWeight="Bold" Margin="0,4,0,0" />
-                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                        <TextBlock Grid.Column="0" Text="Encodings .pkl:" VerticalAlignment="Center" />
-                        <TextBox Grid.Column="1" Name="FaceMatcherEncodingsPathTextBox" Text="{Binding FaceMatcherEncodingsPath, Mode=TwoWay}" Watermark="Se vuoto usa l'ultimo .pkl in output encodings" />
-                        <Button Grid.Column="2" Click="SelectFaceMatcherEncodings_Click" Width="104" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="FileCodeOutline" Width="14" Height="14" />
-                                <TextBlock Text="Scegli..." />
-                            </StackPanel>
-                        </Button>
-                        <Button Grid.Column="3" Click="OpenFaceMatcherEncodings_Click" Width="72" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Encodings .pkl:"
+                                              Text="{Binding FaceMatcherEncodingsPath, Mode=TwoWay}"
+                                              Watermark="Se vuoto usa l'ultimo .pkl in output encodings"
+                                              PreferenceKey="Picker.FaceMatcherEncodings.LastPath"
+                                              PickerTitle="Seleziona file encodings .pkl"
+                                              PickerMode="OpenFile"
+                                              FileTypeName="Encodings"
+                                              FilePatterns="*.pkl" />
 
-                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                        <TextBlock Grid.Column="0" Text="Risultato CSV:" VerticalAlignment="Center" />
-                        <TextBox Grid.Column="1" Name="FaceMatcherOutputPathTextBox" Text="{Binding FaceMatcherOutputPath, Mode=TwoWay}" Watermark="Opzionale: file/cartella output CSV" />
-                        <Button Grid.Column="2" Click="SelectFaceMatcherOutput_Click" Width="104" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="FileDelimitedOutline" Width="14" Height="14" />
-                                <TextBlock Text="Scegli..." />
-                            </StackPanel>
-                        </Button>
-                        <Button Grid.Column="3" Click="OpenFaceMatcherOutput_Click" Width="72" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Risultato CSV:"
+                                              Text="{Binding FaceMatcherOutputPath, Mode=TwoWay}"
+                                              Watermark="Opzionale: file/cartella output CSV"
+                                              PreferenceKey="Picker.FaceMatcherOutput.LastPath"
+                                              PickerTitle="Seleziona output CSV del matcher"
+                                              PickerMode="SaveFile"
+                                              FileTypeName="CSV"
+                                              FilePatterns="*.csv"
+                                              DefaultExtension="csv" />
 
-                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                        <TextBlock Grid.Column="0" Text="Log matcher:" VerticalAlignment="Center" />
-                        <TextBox Grid.Column="1" Name="FaceMatcherLogPathTextBox" Text="{Binding FaceMatcherLogPath, Mode=TwoWay}" Watermark="Opzionale: file/cartella log txt" />
-                        <Button Grid.Column="2" Click="SelectFaceMatcherLog_Click" Width="104" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="FileDocumentOutline" Width="14" Height="14" />
-                                <TextBlock Text="Scegli..." />
-                            </StackPanel>
-                        </Button>
-                        <Button Grid.Column="3" Click="OpenFaceMatcherLog_Click" Width="72" Margin="6,0,0,0">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                                <TextBlock Text="Apri" />
-                            </StackPanel>
-                        </Button>
-                    </Grid>
+                    <controls:PathPickerField Label="Log matcher:"
+                                              Text="{Binding FaceMatcherLogPath, Mode=TwoWay}"
+                                              Watermark="Opzionale: file/cartella log txt"
+                                              PreferenceKey="Picker.FaceMatcherLog.LastPath"
+                                              PickerTitle="Seleziona log TXT del matcher"
+                                              PickerMode="SaveFile"
+                                              FileTypeName="Log"
+                                              FilePatterns="*.txt;*.log"
+                                              DefaultExtension="txt" />
 
                     <Grid ColumnDefinitions="Auto,100,*" ColumnSpacing="6">
                         <TextBlock Grid.Column="0" Text="Tolleranza:" VerticalAlignment="Center" />

imagecatalog/AvaloniaViews/FaceAiTabView.axaml.cs

@@ -4,15 +4,11 @@ using Avalonia.Input;
 using Avalonia.Layout;
 using Avalonia.Media;
 using Avalonia.Media.Imaging;
-using Avalonia.Platform.Storage;
 using Avalonia.Threading;
 using ImageCatalog_2.Models;
 using ImageCatalog_2.Services;
-using Microsoft.Extensions.DependencyInjection;
 using System;
-using System.Collections.Generic;
 using System.ComponentModel;
-using System.Diagnostics;
 using System.IO;
 using System.Text;
 using System.Threading.Tasks;
@@ -22,11 +18,9 @@ namespace ImageCatalog_2.AvaloniaViews;
 public partial class FaceAiTabView : Avalonia.Controls.UserControl
 {
     private INotifyPropertyChanged? _faceAiPropertySource;
-    private readonly PickerPreferenceService _pickerPreferenceService;
 
     public FaceAiTabView()
     {
-        _pickerPreferenceService = Program.ServiceProvider.GetRequiredService<PickerPreferenceService>();
         InitializeComponent();
         DataContextChanged += OnDataContextChanged;
     }
@@ -74,142 +68,6 @@ public partial class FaceAiTabView : Avalonia.Controls.UserControl
         });
     }
 
-    private async void SelectFaceExecutable_Click(object? sender, RoutedEventArgs e)
-    {
-        var currentPath = DataContext is DataModel currentModel ? currentModel.FaceExecutablePath : null;
-        var folders = await OpenFolderPickerAsync("Seleziona la cartella Face Recognition Windows", PickerPreferenceKeys.FaceExecutableFolder, currentPath);
-        if (folders.Count > 0 && DataContext is DataModel model)
-        {
-            model.FaceExecutablePath = folders[0].Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceExecutableFolder, model.FaceExecutablePath);
-        }
-    }
-
-    private async void SelectFaceOutputFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        var currentPath = DataContext is DataModel currentModel ? currentModel.FaceOutputFolderPath : null;
-        var folders = await OpenFolderPickerAsync("Seleziona la cartella output per encodings e log", PickerPreferenceKeys.FaceOutputFolder, currentPath);
-        if (folders.Count > 0 && DataContext is DataModel model)
-        {
-            model.FaceOutputFolderPath = folders[0].Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceOutputFolder, model.FaceOutputFolderPath);
-        }
-    }
-
-    private async void SelectFaceMatcherExecutable_Click(object? sender, RoutedEventArgs e)
-    {
-        var files = await OpenFilePickerAsync(
-            "Seleziona face_matcher.exe",
-            [new FilePickerFileType("Eseguibile") { Patterns = ["*.exe"] }],
-            PickerPreferenceKeys.FaceMatcherExecutable,
-            DataContext is DataModel currentModel ? currentModel.FaceMatcherExecutablePath : null);
-
-        if (files.Count > 0 && DataContext is DataModel model)
-        {
-            model.FaceMatcherExecutablePath = files[0].Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherExecutable, model.FaceMatcherExecutablePath);
-        }
-    }
-
-    private async void SelectFaceMatcherImage_Click(object? sender, RoutedEventArgs e)
-    {
-        var files = await OpenFilePickerAsync(
-            "Seleziona immagine per il match",
-            [new FilePickerFileType("Immagini") { Patterns = ["*.jpg", "*.jpeg", "*.png", "*.bmp", "*.gif", "*.webp"] }],
-            PickerPreferenceKeys.FaceMatcherImage,
-            DataContext is DataModel currentModel ? currentModel.FaceMatcherSelectedImagePath : null);
-
-        if (files.Count > 0 && DataContext is DataModel model)
-        {
-            model.FaceMatcherSelectedImagePath = files[0].Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherImage, model.FaceMatcherSelectedImagePath);
-        }
-    }
-
-    private async void SelectFaceMatcherEncodings_Click(object? sender, RoutedEventArgs e)
-    {
-        var files = await OpenFilePickerAsync(
-            "Seleziona file encodings .pkl",
-            [new FilePickerFileType("Encodings") { Patterns = ["*.pkl"] }],
-            PickerPreferenceKeys.FaceMatcherEncodings,
-            DataContext is DataModel currentModel ? currentModel.FaceMatcherEncodingsPath : null);
-
-        if (files.Count > 0 && DataContext is DataModel model)
-        {
-            model.FaceMatcherEncodingsPath = files[0].Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherEncodings, model.FaceMatcherEncodingsPath);
-        }
-    }
-
-    private async void SelectFaceMatcherOutput_Click(object? sender, RoutedEventArgs e)
-    {
-        var file = await SaveFilePickerAsync(
-            "Seleziona output CSV del matcher",
-            "csv",
-            [new FilePickerFileType("CSV") { Patterns = ["*.csv"] }],
-            PickerPreferenceKeys.FaceMatcherOutput,
-            DataContext is DataModel currentModel ? currentModel.FaceMatcherOutputPath : null);
-
-        if (file is not null && DataContext is DataModel model)
-        {
-            model.FaceMatcherOutputPath = file.Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherOutput, model.FaceMatcherOutputPath);
-        }
-    }
-
-    private async void SelectFaceMatcherLog_Click(object? sender, RoutedEventArgs e)
-    {
-        var file = await SaveFilePickerAsync(
-            "Seleziona log TXT del matcher",
-            "txt",
-            [new FilePickerFileType("Log") { Patterns = ["*.txt", "*.log"] }],
-            PickerPreferenceKeys.FaceMatcherLog,
-            DataContext is DataModel currentModel ? currentModel.FaceMatcherLogPath : null);
-
-        if (file is not null && DataContext is DataModel model)
-        {
-            model.FaceMatcherLogPath = file.Path.LocalPath;
-            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherLog, model.FaceMatcherLogPath);
-        }
-    }
-
-    private void OpenFaceExecutableFolder_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceExecutablePathTextBox");
-
-    private void OpenFaceOutputFolder_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceOutputFolderTextBox");
-
-    private void OpenFaceMatcherExecutable_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherExecutablePathTextBox");
-
-    private void OpenFaceMatcherImage_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherImagePathTextBox");
-
-    private void OpenFaceMatcherEncodings_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherEncodingsPathTextBox");
-
-    private void OpenFaceMatcherOutput_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherOutputPathTextBox");
-
-    private void OpenFaceMatcherLog_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherLogPathTextBox");
-
-    private void OpenFaceDestinationFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        string? path = null;
-        if (DataContext is DataModel model)
-        {
-            path = (model.DestinationPath ?? string.Empty).Trim();
-        }
-
-        if (string.IsNullOrWhiteSpace(path))
-        {
-            return;
-        }
-
-        if (Directory.Exists(path))
-        {
-            OpenInExplorer(path);
-            return;
-        }
-
-        var directory = Path.GetDirectoryName(path);
-        OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? path : directory);
-    }
-
     private async void OpenFaceMatcherPreview_Click(object? sender, RoutedEventArgs e)
     {
         if (sender is not Button { Tag: FaceMatcherResultItem item })
@@ -444,14 +302,14 @@ public partial class FaceAiTabView : Avalonia.Controls.UserControl
         Grid.SetRow(footer, 2);
 
         var openFileButton = new Button { Content = "Apri file" };
-        openFileButton.Click += (_, _) => OpenInExplorer(item.ResolvedImagePath);
+        openFileButton.Click += (_, _) => PathShellService.OpenInExplorer(item.ResolvedImagePath);
         footer.Children.Add(openFileButton);
 
         var openFolderButton = new Button { Content = "Apri cartella" };
         openFolderButton.Click += (_, _) =>
         {
             var directory = Path.GetDirectoryName(item.ResolvedImagePath);
-            OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? item.ResolvedImagePath : directory);
+            PathShellService.OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? item.ResolvedImagePath : directory);
         };
         footer.Children.Add(openFolderButton);
 
@@ -464,104 +322,4 @@ public partial class FaceAiTabView : Avalonia.Controls.UserControl
         return dialog;
     }
 
-    private void OpenFromTextBox(string textBoxName)
-    {
-        var textBox = this.FindControl<Avalonia.Controls.TextBox>(textBoxName);
-        var path = textBox?.Text?.Trim();
-        if (string.IsNullOrWhiteSpace(path))
-        {
-            return;
-        }
-
-        if (Directory.Exists(path) || File.Exists(path))
-        {
-            OpenInExplorer(path);
-            return;
-        }
-
-        var directory = Path.GetDirectoryName(path);
-        OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? path : directory);
-    }
-
-    private async Task<IReadOnlyList<IStorageFolder>> OpenFolderPickerAsync(string title, string preferenceKey, string? currentPath)
-    {
-        var topLevel = TopLevel.GetTopLevel(this);
-        var storageProvider = topLevel?.StorageProvider;
-        if (storageProvider is null)
-        {
-            return Array.Empty<IStorageFolder>();
-        }
-
-        var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, preferenceKey, currentPath);
-
-        return await storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
-        {
-            Title = title,
-            SuggestedStartLocation = suggestedStartLocation
-        });
-    }
-
-    private async Task<IReadOnlyList<IStorageFile>> OpenFilePickerAsync(string title, IReadOnlyList<FilePickerFileType> fileTypes, string preferenceKey, string? currentPath)
-    {
-        var topLevel = TopLevel.GetTopLevel(this);
-        var storageProvider = topLevel?.StorageProvider;
-        if (storageProvider is null)
-        {
-            return Array.Empty<IStorageFile>();
-        }
-
-        var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, preferenceKey, currentPath);
-
-        return await storageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
-        {
-            Title = title,
-            FileTypeFilter = fileTypes,
-            SuggestedStartLocation = suggestedStartLocation
-        });
-    }
-
-    private async Task<IStorageFile?> SaveFilePickerAsync(string title, string defaultExtension, IReadOnlyList<FilePickerFileType> fileTypes, string preferenceKey, string? currentPath)
-    {
-        var topLevel = TopLevel.GetTopLevel(this);
-        var storageProvider = topLevel?.StorageProvider;
-        if (storageProvider is null)
-        {
-            return null;
-        }
-
-        var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, preferenceKey, currentPath);
-
-        return await storageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
-        {
-            Title = title,
-            DefaultExtension = defaultExtension,
-            FileTypeChoices = fileTypes,
-            SuggestedStartLocation = suggestedStartLocation
-        });
-    }
-
-    private static void OpenInExplorer(string? path)
-    {
-        if (string.IsNullOrWhiteSpace(path))
-        {
-            return;
-        }
-
-        var normalizedPath = path.Trim().Trim('"');
-        try
-        {
-            if (File.Exists(normalizedPath))
-            {
-                Process.Start("explorer.exe", $"/select,\"{normalizedPath}\"");
-            }
-            else if (Directory.Exists(normalizedPath))
-            {
-                Process.Start(new ProcessStartInfo { FileName = normalizedPath, UseShellExecute = true });
-            }
-        }
-        catch
-        {
-            // Ignore failures when opening Explorer.
-        }
-    }
 }

imagecatalog/AvaloniaViews/GeneralTabView.axaml

@@ -1,43 +1,24 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:iconPacks="https://github.com/MahApps/IconPacks.Avalonia"
+             xmlns:controls="clr-namespace:ImageCatalog_2.Controls"
              x:Class="ImageCatalog_2.AvaloniaViews.GeneralTabView">
     <ScrollViewer>
         <StackPanel Margin="4" Spacing="8">
             <TextBlock Text="Percorsi" FontWeight="Bold" />
             <StackPanel Margin="0,2,0,0" Spacing="6">
-                <Grid Margin="0,0,0,2" ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                    <TextBlock Text="Sorgente:" VerticalAlignment="Center" Margin="0,0,8,0" Grid.Column="0" />
-                    <TextBox Text="{Binding SourcePath, Mode=TwoWay}" Grid.Column="1" VerticalAlignment="Center" />
-                    <Button Width="104" Command="{Binding SelectSourceFolderCommand}" Grid.Column="2">
-                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                            <iconPacks:PackIconMaterial Kind="FolderOpenOutline" Width="14" Height="14" />
-                            <TextBlock Text="Scegli..." />
-                        </StackPanel>
-                    </Button>
-                    <Button Width="72" Grid.Column="3" Click="OpenSourceFolder_Click">
-                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                            <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                            <TextBlock Text="Apri" />
-                        </StackPanel>
-                    </Button>
-                </Grid>
-                <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                    <TextBlock Text="Destinazione:" VerticalAlignment="Center" Margin="0,0,8,0" Grid.Column="0" />
-                    <TextBox Text="{Binding DestinationPath, Mode=TwoWay}" Grid.Column="1" VerticalAlignment="Center" />
-                    <Button Width="104" Command="{Binding SelectDestinationFolderCommand}" Grid.Column="2">
-                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                            <iconPacks:PackIconMaterial Kind="FolderOpenOutline" Width="14" Height="14" />
-                            <TextBlock Text="Scegli..." />
-                        </StackPanel>
-                    </Button>
-                    <Button Width="72" Grid.Column="3" Click="OpenDestinationFolder_Click">
-                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                            <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                            <TextBlock Text="Apri" />
-                        </StackPanel>
-                    </Button>
-                </Grid>
+                <controls:PathPickerField Margin="0,0,0,2"
+                                          Label="Sorgente:"
+                                          Text="{Binding SourcePath, Mode=TwoWay}"
+                                          PreferenceKey="Picker.SourceFolder.LastPath"
+                                          PickerTitle="Seleziona cartella sorgente"
+                                          PickerMode="Folder"
+                                          AppendDirectorySeparator="True" />
+                <controls:PathPickerField Label="Destinazione:"
+                                          Text="{Binding DestinationPath, Mode=TwoWay}"
+                                          PreferenceKey="Picker.DestinationFolder.LastPath"
+                                          PickerTitle="Seleziona cartella destinazione"
+                                          PickerMode="Folder"
+                                          AppendDirectorySeparator="True" />
             </StackPanel>
 
             <Grid ColumnDefinitions="*,*" ColumnSpacing="24" Margin="0,4,0,0">

imagecatalog/AvaloniaViews/GeneralTabView.axaml.cs

@@ -1,9 +1,4 @@
 using Avalonia.Controls;
-using Avalonia.Interactivity;
-using System;
-using System.Diagnostics;
-using System.IO;
-
 namespace ImageCatalog_2.AvaloniaViews;
 
 public partial class GeneralTabView : Avalonia.Controls.UserControl
@@ -12,45 +7,4 @@ public partial class GeneralTabView : Avalonia.Controls.UserControl
     {
         InitializeComponent();
     }
-
-    private void OpenSourceFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        if (DataContext is DataModel model)
-        {
-            OpenInExplorer(model.SourcePath);
-        }
-    }
-
-    private void OpenDestinationFolder_Click(object? sender, RoutedEventArgs e)
-    {
-        if (DataContext is DataModel model)
-        {
-            OpenInExplorer(model.DestinationPath);
-        }
-    }
-
-    private static void OpenInExplorer(string? path)
-    {
-        if (string.IsNullOrWhiteSpace(path))
-        {
-            return;
-        }
-
-        var normalizedPath = path.Trim().Trim('"');
-        try
-        {
-            if (File.Exists(normalizedPath))
-            {
-                Process.Start("explorer.exe", $"/select,\"{normalizedPath}\"");
-            }
-            else if (Directory.Exists(normalizedPath))
-            {
-                Process.Start(new ProcessStartInfo { FileName = normalizedPath, UseShellExecute = true });
-            }
-        }
-        catch
-        {
-            // Ignore failures when opening Explorer.
-        }
-    }
 }

imagecatalog/Controls/PathPickerField.axaml

@@ -0,0 +1,34 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:iconPacks="https://github.com/MahApps/IconPacks.Avalonia"
+             x:Class="ImageCatalog_2.Controls.PathPickerField"
+             x:Name="Root">
+    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+        <TextBlock Grid.Column="0"
+                   Text="{Binding Label, ElementName=Root}"
+                   VerticalAlignment="Center"
+                   Margin="0,0,8,0" />
+        <TextBox Grid.Column="1"
+                 Text="{Binding Text, ElementName=Root, Mode=TwoWay}"
+                 IsReadOnly="{Binding IsTextReadOnly, ElementName=Root}"
+                 Watermark="{Binding Watermark, ElementName=Root}"
+                 VerticalAlignment="Center" />
+        <Button Grid.Column="2"
+                Width="104"
+                IsVisible="{Binding ShowPickerButton, ElementName=Root}"
+                Click="PickPath_Click">
+            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                <iconPacks:PackIconMaterial Kind="FolderOpenOutline" Width="14" Height="14" />
+                <TextBlock Text="Scegli..." />
+            </StackPanel>
+        </Button>
+        <Button Grid.Column="3"
+                Width="72"
+                Click="OpenPath_Click">
+            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                <TextBlock Text="Apri" />
+            </StackPanel>
+        </Button>
+    </Grid>
+</UserControl>

imagecatalog/Controls/PathPickerField.axaml.cs

@@ -0,0 +1,285 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Data;
+using Avalonia.Platform.Storage;
+using ImageCatalog_2.Services;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace ImageCatalog_2.Controls;
+
+public partial class PathPickerField : UserControl
+{
+    private readonly PickerPreferenceService _pickerPreferenceService;
+
+    public static readonly StyledProperty<string> LabelProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(Label), string.Empty);
+
+    public static readonly StyledProperty<string> TextProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(Text), string.Empty, defaultBindingMode: BindingMode.TwoWay);
+
+    public static readonly StyledProperty<string> WatermarkProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(Watermark), string.Empty);
+
+    public static readonly StyledProperty<string> PreferenceKeyProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(PreferenceKey), string.Empty);
+
+    public static readonly StyledProperty<string> PickerTitleProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(PickerTitle), string.Empty);
+
+    public static readonly StyledProperty<string> FileTypeNameProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(FileTypeName), string.Empty);
+
+    public static readonly StyledProperty<string> FilePatternsProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(FilePatterns), string.Empty);
+
+    public static readonly StyledProperty<string> DefaultExtensionProperty =
+        AvaloniaProperty.Register<PathPickerField, string>(nameof(DefaultExtension), string.Empty);
+
+    public static readonly StyledProperty<PathPickerSelectionMode> PickerModeProperty =
+        AvaloniaProperty.Register<PathPickerField, PathPickerSelectionMode>(nameof(PickerMode), PathPickerSelectionMode.Folder);
+
+    public static readonly StyledProperty<bool> IsTextReadOnlyProperty =
+        AvaloniaProperty.Register<PathPickerField, bool>(nameof(IsTextReadOnly), false);
+
+    public static readonly StyledProperty<bool> ShowPickerButtonProperty =
+        AvaloniaProperty.Register<PathPickerField, bool>(nameof(ShowPickerButton), true);
+
+    public static readonly StyledProperty<bool> AppendDirectorySeparatorProperty =
+        AvaloniaProperty.Register<PathPickerField, bool>(nameof(AppendDirectorySeparator), false);
+
+    public PathPickerField()
+    {
+        _pickerPreferenceService = Program.ServiceProvider.GetRequiredService<PickerPreferenceService>();
+        InitializeComponent();
+    }
+
+    public string Label
+    {
+        get => GetValue(LabelProperty);
+        set => SetValue(LabelProperty, value);
+    }
+
+    public string Text
+    {
+        get => GetValue(TextProperty);
+        set => SetValue(TextProperty, value);
+    }
+
+    public string Watermark
+    {
+        get => GetValue(WatermarkProperty);
+        set => SetValue(WatermarkProperty, value);
+    }
+
+    public string PreferenceKey
+    {
+        get => GetValue(PreferenceKeyProperty);
+        set => SetValue(PreferenceKeyProperty, value);
+    }
+
+    public string PickerTitle
+    {
+        get => GetValue(PickerTitleProperty);
+        set => SetValue(PickerTitleProperty, value);
+    }
+
+    public string FileTypeName
+    {
+        get => GetValue(FileTypeNameProperty);
+        set => SetValue(FileTypeNameProperty, value);
+    }
+
+    public string FilePatterns
+    {
+        get => GetValue(FilePatternsProperty);
+        set => SetValue(FilePatternsProperty, value);
+    }
+
+    public string DefaultExtension
+    {
+        get => GetValue(DefaultExtensionProperty);
+        set => SetValue(DefaultExtensionProperty, value);
+    }
+
+    public PathPickerSelectionMode PickerMode
+    {
+        get => GetValue(PickerModeProperty);
+        set => SetValue(PickerModeProperty, value);
+    }
+
+    public bool IsTextReadOnly
+    {
+        get => GetValue(IsTextReadOnlyProperty);
+        set => SetValue(IsTextReadOnlyProperty, value);
+    }
+
+    public bool ShowPickerButton
+    {
+        get => GetValue(ShowPickerButtonProperty);
+        set => SetValue(ShowPickerButtonProperty, value);
+    }
+
+    public bool AppendDirectorySeparator
+    {
+        get => GetValue(AppendDirectorySeparatorProperty);
+        set => SetValue(AppendDirectorySeparatorProperty, value);
+    }
+
+    private async void PickPath_Click(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        var topLevel = TopLevel.GetTopLevel(this);
+        var storageProvider = topLevel?.StorageProvider;
+        if (storageProvider is null)
+        {
+            return;
+        }
+
+        var selectedPath = await PickPathAsync(storageProvider);
+        if (string.IsNullOrWhiteSpace(selectedPath))
+        {
+            return;
+        }
+
+        Text = selectedPath;
+
+        if (!string.IsNullOrWhiteSpace(PreferenceKey))
+        {
+            _pickerPreferenceService.RememberPath(PreferenceKey, selectedPath);
+        }
+    }
+
+    private void OpenPath_Click(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        PathShellService.OpenInExplorer(Text);
+    }
+
+    private async Task<string?> PickPathAsync(IStorageProvider storageProvider)
+    {
+        var suggestedStartLocation = await TryGetSuggestedStartLocationAsync(storageProvider);
+        var pickerTitle = ResolvePickerTitle();
+
+        switch (PickerMode)
+        {
+            case PathPickerSelectionMode.Folder:
+                {
+                    var folders = await storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
+                    {
+                        Title = pickerTitle,
+                        SuggestedStartLocation = suggestedStartLocation
+                    });
+
+                    return folders.Count == 0
+                        ? null
+                        : NormalizeSelectedPath(folders[0].Path.LocalPath);
+                }
+            case PathPickerSelectionMode.OpenFile:
+                {
+                    var files = await storageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+                    {
+                        Title = pickerTitle,
+                        SuggestedStartLocation = suggestedStartLocation,
+                        FileTypeFilter = BuildFileTypes()
+                    });
+
+                    return files.Count == 0
+                        ? null
+                        : files[0].Path.LocalPath;
+                }
+            case PathPickerSelectionMode.SaveFile:
+                {
+                    var file = await storageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+                    {
+                        Title = pickerTitle,
+                        SuggestedStartLocation = suggestedStartLocation,
+                        DefaultExtension = NormalizeDefaultExtension(DefaultExtension),
+                        FileTypeChoices = BuildFileTypes()
+                    });
+
+                    return file?.Path.LocalPath;
+                }
+            default:
+                return null;
+        }
+    }
+
+    private async Task<IStorageFolder?> TryGetSuggestedStartLocationAsync(IStorageProvider storageProvider)
+    {
+        if (string.IsNullOrWhiteSpace(PreferenceKey))
+        {
+            return null;
+        }
+
+        return await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, PreferenceKey, Text);
+    }
+
+    private IReadOnlyList<FilePickerFileType> BuildFileTypes()
+    {
+        var patterns = (FilePatterns ?? string.Empty)
+            .Split(';', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
+        if (patterns.Length == 0)
+        {
+            return Array.Empty<FilePickerFileType>();
+        }
+
+        var fileTypeName = string.IsNullOrWhiteSpace(FileTypeName)
+            ? "File"
+            : FileTypeName.Trim();
+
+        return
+        [
+            new FilePickerFileType(fileTypeName)
+            {
+                Patterns = patterns.ToList()
+            }
+        ];
+    }
+
+    private string ResolvePickerTitle()
+    {
+        if (!string.IsNullOrWhiteSpace(PickerTitle))
+        {
+            return PickerTitle;
+        }
+
+        var cleanedLabel = string.IsNullOrWhiteSpace(Label)
+            ? "percorso"
+            : Label.Trim().TrimEnd(':');
+
+        return PickerMode == PathPickerSelectionMode.SaveFile
+            ? $"Salva {cleanedLabel.ToLowerInvariant()}"
+            : $"Seleziona {cleanedLabel.ToLowerInvariant()}";
+    }
+
+    private string NormalizeSelectedPath(string selectedPath)
+    {
+        if (PickerMode != PathPickerSelectionMode.Folder || !AppendDirectorySeparator)
+        {
+            return selectedPath;
+        }
+
+        if (string.IsNullOrWhiteSpace(selectedPath))
+        {
+            return string.Empty;
+        }
+
+        return selectedPath.EndsWith(Path.DirectorySeparatorChar)
+            || selectedPath.EndsWith(Path.AltDirectorySeparatorChar)
+            ? selectedPath
+            : selectedPath + Path.DirectorySeparatorChar;
+    }
+
+    private static string NormalizeDefaultExtension(string extension)
+    {
+        if (string.IsNullOrWhiteSpace(extension))
+        {
+            return string.Empty;
+        }
+
+        return extension.Trim().TrimStart('.');
+    }
+}

imagecatalog/Controls/PathPickerSelectionMode.cs

@@ -0,0 +1,8 @@
+namespace ImageCatalog_2.Controls;
+
+public enum PathPickerSelectionMode
+{
+    Folder,
+    OpenFile,
+    SaveFile
+}

imagecatalog/Services/PathShellService.cs

@@ -0,0 +1,50 @@
+using System.Diagnostics;
+using System.IO;
+
+namespace ImageCatalog_2.Services;
+
+public static class PathShellService
+{
+    public static void OpenInExplorer(string? path)
+    {
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return;
+        }
+
+        var normalizedPath = path.Trim().Trim('"');
+
+        try
+        {
+            if (File.Exists(normalizedPath))
+            {
+                Process.Start("explorer.exe", $"/select,\"{normalizedPath}\"");
+                return;
+            }
+
+            if (Directory.Exists(normalizedPath))
+            {
+                Process.Start(new ProcessStartInfo
+                {
+                    FileName = normalizedPath,
+                    UseShellExecute = true
+                });
+                return;
+            }
+
+            var containingDirectory = Path.GetDirectoryName(normalizedPath);
+            if (!string.IsNullOrWhiteSpace(containingDirectory) && Directory.Exists(containingDirectory))
+            {
+                Process.Start(new ProcessStartInfo
+                {
+                    FileName = containingDirectory,
+                    UseShellExecute = true
+                });
+            }
+        }
+        catch
+        {
+            // Ignore failures when opening Explorer.
+        }
+    }
+}