add context menu with open folder

Azaion.Annotator/MainWindow.xaml

@@ -160,8 +160,14 @@
                                 <Setter Property="Background" Value="Gray"/>
                             </DataTrigger>
                         </Style.Triggers>
+                        <EventSetter Event="ContextMenuOpening" Handler="LvFilesContextOpening"></EventSetter>
                     </Style>
                 </ListView.Resources>
+                <ListView.ContextMenu>
+                    <ContextMenu Name="LvFilesContextMenu">
+                        <MenuItem Header="Відкрити папку..." Click="OpenContainingFolder" Background="WhiteSmoke" />
+                    </ContextMenu>
+                </ListView.ContextMenu>
                 <ListView.View>
                     <GridView>
                         <GridViewColumn Width="Auto"

Azaion.Annotator/MainWindow.xaml.cs

@@ -1,4 +1,5 @@
 using System.Collections.ObjectModel;
+using System.Diagnostics;
 using System.IO;
 using System.Windows;
 using System.Windows.Controls;
@@ -320,6 +321,7 @@ public partial class MainWindow
         BlinkHelp(AllMediaFiles.Count == 0
             ? HelpTexts.HelpTextsDict[HelpTextEnum.Initial]
             : HelpTexts.HelpTextsDict[HelpTextEnum.PlayVideo]);
+        DataContext = this;
     }
 
     private void OnFormClosed(object? sender, EventArgs e)
@@ -331,6 +333,15 @@ public partial class MainWindow
         Application.Current.Shutdown();
     }
 
+    private void OpenContainingFolder(object sender, RoutedEventArgs e)
+    {
+        var mediaFileInfo = (sender as MenuItem)?.DataContext as MediaFileInfo;
+        if (mediaFileInfo == null)
+            return;
+
+        Process.Start("explorer.exe", "/select, \"" + mediaFileInfo.Path +"\"");
+    }
+
     // private void AddClassBtnClick(object sender, RoutedEventArgs e)
     // {
     //     LvClasses.IsReadOnly = false;
@@ -428,4 +439,10 @@ public partial class MainWindow
         _galleryManager.ClearThumbnails();
         _galleryManager.RefreshThumbnails();
     }
+
+    private void LvFilesContextOpening(object sender, ContextMenuEventArgs e)
+    {
+        var listItem = sender as ListViewItem;
+        LvFilesContextMenu.DataContext = listItem.DataContext;
+    }
 }