feat(Eve-O-Preview): add hotkey to toggle all thumbnails and update target framework

src/Eve-O-Mock/Eve-O-Mock.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net8.0-windows8.0</TargetFramework>
+    	<TargetFramework>net6.0-windows</TargetFramework>
     <OutputType>WinExe</OutputType>
     <RootNamespace>EveOMock</RootNamespace>
     <AssemblyName>ExeFile</AssemblyName>

src/Eve-O-Preview/Configuration/Implementation/ThumbnailConfiguration.cs

@@ -124,6 +124,8 @@ namespace EveOPreview.Configuration.Implementation {
             this.IconName = "";
 
             this.LoginThumbnailLocation = new Point(5, 5);
+            this.ToggleAllThumbnailsHotkey = "Alt+F12";
+            this.ThumbnailsManuallyHidden = false;
         }
 
         [JsonProperty("ConfigVersion")]
@@ -318,6 +320,16 @@ namespace EveOPreview.Configuration.Implementation {
             get; set;
         }
 
+        [JsonProperty("ToggleAllThumbnailsHotkey")]
+        public string ToggleAllThumbnailsHotkey {
+            get; set;
+        }
+
+        [JsonProperty("ThumbnailsManuallyHidden")]
+        public bool ThumbnailsManuallyHidden {
+            get; set;
+        }
+
         [JsonProperty]
         private Dictionary<string, Dictionary<string, Point>> PerClientLayout {
             get; set;

src/Eve-O-Preview/Configuration/Interface/IThumbnailConfiguration.cs

@@ -25,6 +25,8 @@ namespace EveOPreview.Configuration {
         Dictionary<string, int> CycleGroup5ClientsOrder { get; set; }
 
         string ToggleTrackingHotkey { get; set; }
+        string ToggleAllThumbnailsHotkey { get; set; }
+        bool ThumbnailsManuallyHidden { get; set; }
 
         Dictionary<string, Color> PerClientActiveClientHighlightColor { get; set; }
         Dictionary<string, Size> PerClientThumbnailSize { get; set; }

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

@@ -52,6 +52,7 @@ namespace EveOPreview.Services {
 
         private List<HotkeyHandler> _cycleClientHotkeyHandlers = new List<HotkeyHandler>();
         private HotkeyHandler _toggleTrackingHotkey;
+        private HotkeyHandler _toggleAllThumbnailsHotkey;
 #endregion
 
         public ThumbnailManager(IMediator mediator, IThumbnailConfiguration configuration,
@@ -167,6 +168,18 @@ namespace EveOPreview.Services {
             };
             registered = toggleSingleProcessHotkey.Register();
             System.Diagnostics.Debug.WriteLine($"Single process hotkey registration result: {registered}");
+
+            // Setup toggle all thumbnails hotkey
+            var toggleAllThumbnailsKey = this._configuration.StringToKey(this._configuration.ToggleAllThumbnailsHotkey);
+            this._toggleAllThumbnailsHotkey = new HotkeyHandler(mainHandle, toggleAllThumbnailsKey);
+            this._toggleAllThumbnailsHotkey.Pressed += (object s, HandledEventArgs e) => {
+                this._configuration.ThumbnailsManuallyHidden = !this._configuration.ThumbnailsManuallyHidden;
+                System.Diagnostics.Debug.WriteLine(
+                    $"Toggled all thumbnails: {(this._configuration.ThumbnailsManuallyHidden ? "Hidden" : "Visible")}");
+                e.Handled = true;
+            };
+            registered = this._toggleAllThumbnailsHotkey.Register();
+            System.Diagnostics.Debug.WriteLine($"Toggle all thumbnails hotkey registration result: {registered}");
         }
 
         public IThumbnailView GetClientByTitle(string title) {
@@ -439,7 +452,8 @@ namespace EveOPreview.Services {
             }
 
             bool hideAllThumbnails =
-                this._configuration.HideThumbnailsOnLostFocus && !(isClientWindow || isMainWindowActive);
+                this._configuration.HideThumbnailsOnLostFocus && !(isClientWindow || isMainWindowActive) ||
+                this._configuration.ThumbnailsManuallyHidden;
 
             // Wait for some time before hiding all previews
             if (hideAllThumbnails) {