Finished transition to MediatR for GUI <-> service interaction

Eve-O-Preview/Eve-O-Preview.csproj

@@ -114,18 +114,21 @@
     <Compile Include="Configuration\IThumbnailConfiguration.cs" />
     <Compile Include="Configuration\ZoomAnchor.cs" />
     <Compile Include="Mediator\Handlers\Configuration\SaveConfigurationHandler.cs" />
+    <Compile Include="Mediator\Handlers\Thumbnails\ThumbnailFrameSettingsUpdatedHandler.cs" />
+    <Compile Include="Mediator\Handlers\Thumbnails\ThumbnailConfiguredSizeUpdatedHandler.cs" />
     <Compile Include="Mediator\Handlers\Thumbnails\ThumbnailListUpdatedHandler.cs" />
+    <Compile Include="Mediator\Messages\Thumbnails\ThumbnailFrameSettingsUpdated.cs" />
+    <Compile Include="Mediator\Messages\Thumbnails\ThumbnailConfiguredSizeUpdated.cs" />
     <Compile Include="Mediator\Messages\Thumbnails\ThumbnailListUpdated.cs" />
     <Compile Include="Mediator\Handlers\Thumbnails\ThumbnailLocationUpdatedHandler.cs" />
-    <Compile Include="Mediator\Handlers\Thumbnails\ThumbnailSizeUpdatedHandler.cs" />
+    <Compile Include="Mediator\Handlers\Thumbnails\ThumbnailActiveSizeUpdatedHandler.cs" />
-    <Compile Include="Mediator\Handlers\Services\StartServiceHandler.cs" />
+    <Compile Include="Mediator\Handlers\Services\StartStopServiceHandler.cs" />
-    <Compile Include="Mediator\Handlers\Services\StopServiceHandler.cs" />
     <Compile Include="Mediator\Messages\Base\NotificationBase.cs" />
     <Compile Include="Mediator\Messages\Configuration\SaveConfiguration.cs" />
     <Compile Include="Mediator\Messages\Services\StartService.cs" />
     <Compile Include="Mediator\Messages\Services\StopService.cs" />
     <Compile Include="Mediator\Messages\Thumbnails\ThumbnailLocationUpdated.cs" />
-    <Compile Include="Mediator\Messages\Thumbnails\ThumbnailSizeUpdated.cs" />
+    <Compile Include="Mediator\Messages\Thumbnails\ThumbnailActiveSizeUpdated.cs" />
     <Compile Include="Presenters\Interface\IMainFormPresenter.cs" />
     <Compile Include="Services\Implementation\ProcessInfo.cs" />
     <Compile Include="Services\Implementation\ProcessMonitor.cs" />

Eve-O-Preview/Mediator/Handlers/Services/StartStopServiceHandler.cs

@@ -6,11 +6,11 @@ using MediatR;
 
 namespace EveOPreview.Mediator.Handlers.Services
 {
-	sealed class StartServiceHandler : IRequestHandler<StartService>
+	sealed class StartStopServiceHandler : IRequestHandler<StartService>, IRequestHandler<StopService>
 	{
 		private readonly IThumbnailManager _manager;
 
-		public StartServiceHandler(IThumbnailManager manager)
+		public StartStopServiceHandler(IThumbnailManager manager)
 		{
 			this._manager = manager;
 		}
@@ -21,5 +21,12 @@ namespace EveOPreview.Mediator.Handlers.Services
 
 			return Task.CompletedTask;
 		}
+
+		public Task Handle(StopService message, CancellationToken cancellationToken)
+		{
+			this._manager.Stop();
+
+			return Task.CompletedTask;
+		}
 	}
 }

Eve-O-Preview/Mediator/Handlers/Services/StopServiceHandler.cs

@@ -1,25 +0,0 @@
-using System.Threading;
-using System.Threading.Tasks;
-using EveOPreview.Mediator.Messages;
-using EveOPreview.Services;
-using MediatR;
-
-namespace EveOPreview.Mediator.Handlers.Services
-{
-	sealed class StopServiceHandler : IRequestHandler<StopService>
-	{
-		private readonly IThumbnailManager _manager;
-
-		public StopServiceHandler(IThumbnailManager manager)
-		{
-			this._manager = manager;
-		}
-
-		public Task Handle(StopService message, CancellationToken cancellationToken)
-		{
-			this._manager.Stop();
-
-			return Task.CompletedTask;
-		}
-	}
-}

Eve-O-Preview/Mediator/Handlers/Thumbnails/ThumbnailActiveSizeUpdatedHandler.cs

@@ -6,16 +6,16 @@ using MediatR;
 
 namespace EveOPreview.Mediator.Handlers.Thumbnails
 {
-	sealed class ThumbnailSizeUpdatedHandler : INotificationHandler<ThumbnailSizeUpdated>
+	sealed class ThumbnailActiveSizeUpdatedHandler : INotificationHandler<ThumbnailActiveSizeUpdated>
 	{
 		private readonly IMainFormPresenter _presenter;
 
-		public ThumbnailSizeUpdatedHandler(MainFormPresenter presenter)
+		public ThumbnailActiveSizeUpdatedHandler(MainFormPresenter presenter)
 		{
 			this._presenter = presenter;
 		}
 
-		public Task Handle(ThumbnailSizeUpdated notification, CancellationToken cancellationToken)
+		public Task Handle(ThumbnailActiveSizeUpdated notification, CancellationToken cancellationToken)
 		{
 			this._presenter.UpdateThumbnailSize(notification.Value);
 

Eve-O-Preview/Mediator/Handlers/Thumbnails/ThumbnailConfiguredSizeUpdatedHandler.cs

@@ -0,0 +1,25 @@
+using System.Threading;
+using System.Threading.Tasks;
+using EveOPreview.Mediator.Messages;
+using EveOPreview.Services;
+using MediatR;
+
+namespace EveOPreview.Mediator.Handlers.Thumbnails
+{
+	sealed class ThumbnailConfiguredSizeUpdatedHandler : INotificationHandler<ThumbnailConfiguredSizeUpdated>
+	{
+		private readonly IThumbnailManager _manager;
+
+		public ThumbnailConfiguredSizeUpdatedHandler(IThumbnailManager manager)
+		{
+			this._manager = manager;
+		}
+
+		public Task Handle(ThumbnailConfiguredSizeUpdated notification, CancellationToken cancellationToken)
+		{
+			this._manager.UpdateThumbnailsSize();
+
+			return Task.CompletedTask;
+		}
+	}
+}

Eve-O-Preview/Mediator/Handlers/Thumbnails/ThumbnailFrameSettingsUpdatedHandler.cs

@@ -0,0 +1,25 @@
+using System.Threading;
+using System.Threading.Tasks;
+using EveOPreview.Mediator.Messages;
+using EveOPreview.Services;
+using MediatR;
+
+namespace EveOPreview.Mediator.Handlers.Thumbnails
+{
+	sealed class ThumbnailFrameSettingsUpdatedHandler : INotificationHandler<ThumbnailFrameSettingsUpdated>
+	{
+		private readonly IThumbnailManager _manager;
+
+		public ThumbnailFrameSettingsUpdatedHandler(IThumbnailManager manager)
+		{
+			this._manager = manager;
+		}
+
+		public Task Handle(ThumbnailFrameSettingsUpdated notification, CancellationToken cancellationToken)
+		{
+			this._manager.UpdateThumbnailFrames();
+
+			return Task.CompletedTask;
+		}
+	}
+}

Eve-O-Preview/Mediator/Messages/Thumbnails/ThumbnailActiveSizeUpdated.cs

@@ -0,0 +1,12 @@
+using System.Drawing;
+
+namespace EveOPreview.Mediator.Messages
+{
+	sealed class ThumbnailActiveSizeUpdated : NotificationBase<Size>
+	{
+		public ThumbnailActiveSizeUpdated(Size size)
+				: base(size)
+		{
+		}
+	}
+}

Eve-O-Preview/Mediator/Messages/Thumbnails/ThumbnailConfiguredSizeUpdated.cs

@@ -0,0 +1,8 @@
+using MediatR;
+
+namespace EveOPreview.Mediator.Messages
+{
+	sealed class ThumbnailConfiguredSizeUpdated : INotification
+	{
+	}
+}

Eve-O-Preview/Mediator/Messages/Thumbnails/ThumbnailFrameSettingsUpdated.cs

@@ -0,0 +1,8 @@
+using MediatR;
+
+namespace EveOPreview.Mediator.Messages
+{
+	sealed class ThumbnailFrameSettingsUpdated : INotification
+	{
+	}
+}

Eve-O-Preview/Mediator/Messages/Thumbnails/ThumbnailSizeUpdated.cs

@@ -1,12 +0,0 @@
-using System.Drawing;
-
-namespace EveOPreview.Mediator.Messages
-{
-	sealed class ThumbnailSizeUpdated : NotificationBase<Size>
-	{
-		public ThumbnailSizeUpdated(Size size)
-				: base(size)
-		{
-		}
-	}
-}

Eve-O-Preview/Presenters/Implementation/MainFormPresenter.cs

@@ -4,7 +4,6 @@ using System.Diagnostics;
 using System.Drawing;
 using EveOPreview.Configuration;
 using EveOPreview.Mediator.Messages;
-using EveOPreview.Services;
 using EveOPreview.View;
 using MediatR;
 
@@ -20,24 +19,22 @@ namespace EveOPreview.Presenters
 		private readonly IMediator _mediator;
 		private readonly IThumbnailConfiguration _configuration;
 		private readonly IConfigurationStorage _configurationStorage;
-		private readonly IThumbnailManager _thumbnailManager;
-
 		private readonly IDictionary<string, IThumbnailDescription> _descriptionsCache;
+		private bool _suppressSizeNotifications;
 
 		private bool _exitApplication;
 		#endregion
 
-		public MainFormPresenter(IApplicationController controller, IMainFormView view, IMediator mediator, IThumbnailConfiguration configuration, IConfigurationStorage configurationStorage,
+		public MainFormPresenter(IApplicationController controller, IMainFormView view, IMediator mediator, IThumbnailConfiguration configuration, IConfigurationStorage configurationStorage)
-								IThumbnailManager thumbnailManager)
 			: base(controller, view)
 		{
 			this._mediator = mediator;
 			this._configuration = configuration;
 			this._configurationStorage = configurationStorage;
-			this._thumbnailManager = thumbnailManager;
 
 			this._descriptionsCache = new Dictionary<string, IThumbnailDescription>();
 
+			this._suppressSizeNotifications = false;
 			this._exitApplication = false;
 
 			this.View.FormActivated = this.Activate;
@@ -79,7 +76,6 @@ namespace EveOPreview.Presenters
 			{
 				this._mediator.Send(new StopService()).Wait();
 
-				this._thumbnailManager.Stop();
 				this._configurationStorage.Save();
 				request.Allow = true;
 				return;
@@ -89,10 +85,14 @@ namespace EveOPreview.Presenters
 			this.View.Minimize();
 		}
 
-		private void UpdateThumbnailsSize()
+		private async void UpdateThumbnailsSize()
 		{
-			this._thumbnailManager.SetThumbnailsSize(this.View.ThumbnailSize);
 			this.SaveApplicationSettings();
+
+			if (!this._suppressSizeNotifications)
+			{
+				await this._mediator.Publish(new ThumbnailConfiguredSizeUpdated());
+			}
 		}
 
 		private void LoadApplicationSettings()
@@ -122,7 +122,7 @@ namespace EveOPreview.Presenters
 			this.View.ActiveClientHighlightColor = this._configuration.ActiveClientHighlightColor;
 		}
 
-		private void SaveApplicationSettings()
+		private async void SaveApplicationSettings()
 		{
 			this._configuration.MinimizeToTray = this.View.MinimizeToTray;
 
@@ -141,7 +141,12 @@ namespace EveOPreview.Presenters
 			this._configuration.ThumbnailZoomAnchor = ViewZoomAnchorConverter.Convert(this.View.ThumbnailZoomAnchor);
 
 			this._configuration.ShowThumbnailOverlays = this.View.ShowThumbnailOverlays;
+			if (this._configuration.ShowThumbnailFrames != this.View.ShowThumbnailFrames)
+			{
+				await this._mediator.Publish(new ThumbnailFrameSettingsUpdated());
 				this._configuration.ShowThumbnailFrames = this.View.ShowThumbnailFrames;
+			}
+
 			this._configuration.EnableActiveClientHighlight = this.View.EnableActiveClientHighlight;
 			this._configuration.ActiveClientHighlightColor = this.View.ActiveClientHighlightColor;
 
@@ -149,7 +154,7 @@ namespace EveOPreview.Presenters
 
 			this.View.RefreshZoomSettings();
 
-			this._thumbnailManager.SetupThumbnailFrames();
+			await this._mediator.Send(new SaveConfiguration());
 		}
 
 
@@ -200,17 +205,20 @@ namespace EveOPreview.Presenters
 
 		private void UpdateThumbnailState(String title)
 		{
+			// TODO This setting doesn't work atm
 			//this._thumbnailManager.SetThumbnailState(thumbnailId, this._thumbnailDescriptionViews[thumbnailId].IsDisabled);
 		}
 
 		public void UpdateThumbnailSize(Size size)
 		{
+			this._suppressSizeNotifications = true;
 			this.View.ThumbnailSize = size;
+			this._suppressSizeNotifications = false;
 		}
 
 		private void OpenDocumentationLink()
 		{
-			// TODO Move out
+			// TODO Move out to a separate service / presenter / message handler
 			ProcessStartInfo processStartInfo = new ProcessStartInfo(new Uri(MainFormPresenter.ForumUrl).AbsoluteUri);
 			Process.Start(processStartInfo);
 		}

Eve-O-Preview/Services/Implementation/ThumbnailManager.cs

@@ -78,7 +78,19 @@ namespace EveOPreview.Services
 			thumbnail.IsEnabled = !hideAlways;
 		}
 
+		public void UpdateThumbnailsSize()
+		{
+			this.InternalSetThumbnailsSize(this._configuration.ThumbnailSize);
+		}
+
 		public async void SetThumbnailsSize(Size size)
+		{
+			this.InternalSetThumbnailsSize(size);
+
+			await this._mediator.Publish(new ThumbnailActiveSizeUpdated(size));
+		}
+
+		private void InternalSetThumbnailsSize(Size size)
 		{
 			this.DisableViewEvents();
 
@@ -88,8 +100,6 @@ namespace EveOPreview.Services
 				entry.Value.Refresh(false);
 			}
 
-			await this._mediator.Publish(new ThumbnailSizeUpdated(size));
-
 			this.EnableViewEvents();
 		}
 
@@ -154,7 +164,7 @@ namespace EveOPreview.Services
 			this.EnableViewEvents();
 		}
 
-		public void SetupThumbnailFrames()
+		public void UpdateThumbnailFrames()
 		{
 			this.DisableViewEvents();
 

Eve-O-Preview/Services/Interface/IThumbnailManager.cs

@@ -10,6 +10,7 @@ namespace EveOPreview.Services
 
 		void SetThumbnailState(IntPtr thumbnailId, bool hideAlways);
 		void SetThumbnailsSize(Size size);
-		void SetupThumbnailFrames();
+		void UpdateThumbnailsSize();
+		void UpdateThumbnailFrames();
 	}
 }