Improved BaseApplication

MediaBrowser.Common/UI/BaseApplication.cs

@@ -1,21 +1,34 @@
-using System;
-using System.Windows;
-using MediaBrowser.Common.Kernel;
+using MediaBrowser.Common.Kernel;
 using MediaBrowser.Common.Logging;
 using MediaBrowser.Model.Progress;
+using Microsoft.Shell;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Windows;
 
 namespace MediaBrowser.Common.UI
 {
     /// <summary>
     /// Serves as a base Application class for both the UI and Server apps.
     /// </summary>
-    public abstract class BaseApplication : Application
+    public abstract class BaseApplication : Application, INotifyPropertyChanged, ISingleInstanceApp
     {
         private IKernel Kernel { get; set; }
 
         protected abstract IKernel InstantiateKernel();
         protected abstract Window InstantiateMainWindow();
 
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        public void OnPropertyChanged(String info)
+        {
+            if (PropertyChanged != null)
+            {
+                PropertyChanged(this, new PropertyChangedEventArgs(info));
+            }
+        }
+
         protected override void OnStartup(StartupEventArgs e)
         {
             // Without this the app will shutdown after the splash screen closes
@@ -43,7 +56,10 @@ namespace MediaBrowser.Common.UI
                 splash.Close();
 
                 ShutdownMode = System.Windows.ShutdownMode.OnLastWindowClose;
-                InstantiateMainWindow().ShowDialog();
+
+                OnKernelLoaded();
+
+                InstantiateMainWindow().Show();
             }
             catch (Exception ex)
             {
@@ -60,11 +76,51 @@ namespace MediaBrowser.Common.UI
             }
         }
 
+        protected virtual void OnKernelLoaded()
+        {
+
+        }
+
         protected override void OnExit(ExitEventArgs e)
         {
             base.OnExit(e);
 
             Kernel.Dispose();
         }
+
+        public bool SignalExternalCommandLineArgs(IList<string> args)
+        {
+            OnSecondInstanceLaunched(args);
+
+            return true;
+        }
+
+        protected virtual void OnSecondInstanceLaunched(IList<string> args)
+        {
+            if (this.MainWindow.WindowState == WindowState.Minimized)
+            {
+                this.MainWindow.WindowState = WindowState.Maximized;
+            }            
+        }
+
+        public static void RunApplication<TApplicationType>(string uniqueKey)
+            where TApplicationType : BaseApplication, IApplication, new()
+        {
+            if (SingleInstance<TApplicationType>.InitializeAsFirstInstance(uniqueKey))
+            {
+                var application = new TApplicationType();
+                application.InitializeComponent();
+
+                application.Run();
+
+                // Allow single instance code to perform cleanup operations
+                SingleInstance<TApplicationType>.Cleanup();
+            }
+        }
+    }
+
+    public interface IApplication
+    {
+        void InitializeComponent();
     }
 }