fix for closed media sessions not updating DataModel

Author: Aytackydln

Artemis.MediaInfo/DataModels/MediaInfoDataModel.cs

@@ -31,9 +31,9 @@ public class MediaInfoDataModel : DataModel
     public bool HasArt { get; set; }
 
     public ColorSwatch ArtColors { get; set; }
-        
-    public string SessionName { get; set; }
 
-    public ISet<MediaManager.MediaSession> MediaSessions { get; set; }
-    public ISet<MediaManager.MediaSession> ArtMediaSessions { get; set; }
+    public string SessionName { get; set; } = "";
+
+    public ISet<MediaManager.MediaSession> MediaSessions { get; set; } = new HashSet<MediaManager.MediaSession>();
+    public ISet<MediaManager.MediaSession> ArtMediaSessions { get; set; } = new HashSet<MediaManager.MediaSession>();
 }

Artemis.MediaInfo/MediaInfoModule.cs

@@ -115,17 +115,12 @@ private async void MediaWatcherOnArtStateChanged(object? sender, ArtStateChanged
     {
         if (e.Thumbnail != null)
         {
+            DataModel.HasArt = true;
             DataModel.ArtColors = await ReadMediaColors(e.Thumbnail);
         }
         else
         {
-            var mediaSession = _mediaWatcher.AlbumArtSessions.LastOrDefault();
-            if (mediaSession!= null)
-            {
-                var mediaProperties = mediaSession.ControlSession.TryGetMediaPropertiesAsync().GetAwaiter().GetResult();
-                DataModel.ArtColors = await ReadMediaColors(mediaProperties);
-            }
+            DataModel.HasArt = false;
         }
-        DataModel.HasArt = _mediaWatcher.AlbumArtSessions.Any();
     }
 }

Artemis.MediaInfo/MediaWatch/MediaEvents.cs

@@ -17,12 +17,10 @@ public MediaAddedEventArgs(MediaManager.MediaSession mediaSession)
 
 public class ArtStateChangedEventArgs : EventArgs
 {
-    public MediaManager.MediaSession MediaSession { get; }
     public IRandomAccessStreamReference? Thumbnail { get; }
 
-    public ArtStateChangedEventArgs(MediaManager.MediaSession mediaSession, IRandomAccessStreamReference? thumbnail)
+    public ArtStateChangedEventArgs(IRandomAccessStreamReference? thumbnail)
     {
-        MediaSession = mediaSession;
         Thumbnail = thumbnail;
     }
 }

Artemis.MediaInfo/MediaWatch/MediaWatcher.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using Windows.Media.Control;
 using WindowsMediaController;
@@ -75,7 +76,11 @@ private void MediaManager_OnSessionOpened(MediaSession mediaSession)
 
     private void MediaManager_OnAnySessionClosed(MediaSession mediaSession)
     {
-        AlbumArtSessions.Remove(mediaSession);
+        var artSessionRemoved = AlbumArtSessions.Remove(mediaSession);
+        if (artSessionRemoved)
+        {
+            NotifyNextMediaSession();
+        }
         MediaSessions.Remove(mediaSession);
         _mediaManager.ForceUpdate();
     }
@@ -93,17 +98,31 @@ private void MediaManager_OnAnyMediaPropertyChanged(MediaSession mediaSession,
             if (mediaProperties.Thumbnail is null)
             {
                 AlbumArtSessions.Remove(mediaSession);
-                ArtStateChanged?.Invoke(this, new ArtStateChangedEventArgs(mediaSession, null));
+                NotifyNextMediaSession();
                 return;
             }
 
             AlbumArtSessions.Add(mediaSession);
-            ArtStateChanged?.Invoke(this, new ArtStateChangedEventArgs(mediaSession, mediaProperties.Thumbnail));
+            ArtStateChanged?.Invoke(this, new ArtStateChangedEventArgs(mediaProperties.Thumbnail));
         }
         catch
         {
             AlbumArtSessions.Remove(mediaSession);
-            ArtStateChanged?.Invoke(this, new ArtStateChangedEventArgs(mediaSession, null));
+            NotifyNextMediaSession();
+        }
+    }
+
+    private void NotifyNextMediaSession()
+    {
+        var nextArtSession = AlbumArtSessions.LastOrDefault();
+        if (nextArtSession != null)
+        {
+            var mediaProperties = nextArtSession.ControlSession.TryGetMediaPropertiesAsync().GetAwaiter().GetResult();
+            ArtStateChanged?.Invoke(this, new ArtStateChangedEventArgs(mediaProperties.Thumbnail));
+        }
+        else
+        {
+            ArtStateChanged?.Invoke(this, new ArtStateChangedEventArgs(null));
         }
     }
 

Artemis.MediaInfo/Utils/RegistryWatcher.cs

@@ -63,7 +63,7 @@ public RegistryWatcher(WatchedRegistry watchedRegistry, string key, string value
 
     public void StartWatching()
     {
-        ManagementScope scope = new ManagementScope("\\\\.\\root\\default");
+        var scope = new ManagementScope("\\\\.\\root\\default");
         _eventWatcher = new ManagementEventWatcher(scope, _query);
         _eventWatcher.EventArrived += KeyWatcherOnEventArrived;
         _eventWatcher.Start();

Artemis.MediaInfo/plugin.json

@@ -6,6 +6,6 @@
 	"Main": "Artemis.MediaInfo.dll",
 	"Name": "Media Info",
 	"Repository": "https://github.com/Aytackydln/Artemis.MediaInfo",
-	"Version": "1.1.0.0",
+	"Version": "1.2.1.0",
 	"Platforms":"Windows"
 }