1 files changed, 89 insertions, 0 deletions
diff --git a/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/StudioViewModel.cs b/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/StudioViewModel.cs
index 9c7e52d23..77fad1fc6 100644
--- a/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/StudioViewModel.cs
+++ b/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/StudioViewModel.cs
@@ -13,6 +13,79 @@ namespace Tango.MachineStudio.Common
     /// <typeparam name="Module">The type of the module.</typeparam>
     /// <seealso cref="Tango.SharedUI.ViewModel" />
     /// <seealso cref="Tango.MachineStudio.Common.IStudioViewModel" />
+    public abstract class StudioViewModelInternal : ViewModel, IStudioViewModel
+    {
+        /// <summary>
+        /// Gets or sets a value indicating whether this view model studio module is currently loaded.
+        /// </summary>
+        public bool IsModuleLoaded { get; private set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="StudioViewModel{Module}"/> class.
+        /// </summary>
+        public StudioViewModelInternal() : base()
+        {
+
+        }
+
+        /// <summary>
+        /// Called when another module has wants to navigate to this module with some arguments.
+        /// </summary>
+        /// <param name="args">The arguments.</param>
+        public virtual void OnModuleRequest(params object[] args)
+        {
+
+        }
+
+        /// <summary>
+        /// Called when the user has navigated out of the module.
+        /// </summary>
+        public virtual void OnNavigatedFrom()
+        {
+            IsModuleLoaded = false;
+        }
+
+        /// <summary>
+        /// Called when the user has navigated in to the module.
+        /// </summary>
+        public virtual void OnNavigatedTo()
+        {
+            IsModuleLoaded = true;
+        }
+
+        /// <summary>
+        /// Called before the application is shutting down.
+        /// Return false to cancel the shutdown in case an important process is in progress.
+        /// </summary>
+        /// <returns></returns>
+        public virtual Task<bool> OnShutdownRequest()
+        {
+            return Task.FromResult(true);
+        }
+
+        /// <summary>
+        /// Called when application is shutting down.
+        /// </summary>
+        public virtual void OnShuttingDown()
+        {
+
+        }
+
+        /// <summary>
+        /// Called when the application has been started
+        /// </summary>
+        public virtual void OnApplicationStarted()
+        {
+
+        }
+    }
+
+    /// <summary>
+    /// Represents a Machine Studio view model
+    /// </summary>
+    /// <typeparam name="Module">The type of the module.</typeparam>
+    /// <seealso cref="Tango.SharedUI.ViewModel" />
+    /// <seealso cref="Tango.MachineStudio.Common.IStudioViewModel" />
     public abstract class StudioViewModel<Module> : ViewModel, IStudioViewModel where Module : IStudioModule
     {
         /// <summary>
@@ -70,6 +143,14 @@ namespace Tango.MachineStudio.Common
         {
 
         }
+
+        /// <summary>
+        /// Called when the application has been started
+        /// </summary>
+        public virtual void OnApplicationStarted()
+        {
+            
+        }
     }
 
     /// <summary>
@@ -91,6 +172,14 @@ namespace Tango.MachineStudio.Common
         }
 
         /// <summary>
+        /// Called when the application has been started
+        /// </summary>
+        public virtual void OnApplicationStarted()
+        {
+
+        }
+
+        /// <summary>
         /// Called when another module has wants to navigate to this module with some arguments.
         /// </summary>
         /// <param name="args">The arguments.</param>