1 files changed, 42 insertions, 0 deletions
diff --git a/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/IStudioViewModel.cs b/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/IStudioViewModel.cs
new file mode 100644
index 000000000..35ed50cd9
--- /dev/null
+++ b/Software/Visual_Studio/MachineStudio/Tango.MachineStudio.Common/IStudioViewModel.cs
@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Tango.MachineStudio.Common
+{
+    /// <summary>
+    /// Represents a Machine Studio view model.
+    /// </summary>
+    public interface IStudioViewModel
+    {
+        /// <summary>
+        /// Called when the user has navigated in to the module.
+        /// </summary>
+        void OnNavigatedTo();
+
+        /// <summary>
+        /// Called when the user has navigated out of the module.
+        /// </summary>
+        void OnNavigatedFrom();
+
+        /// <summary>
+        /// Called when application is shutting down.
+        /// </summary>
+        void OnShuttingDown();
+
+        /// <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>
+        Task<bool> OnShutdownRequest();
+
+        /// <summary>
+        /// Called when another module has wants to navigate to this module with some arguments.
+        /// </summary>
+        /// <param name="args">The arguments.</param>
+        void OnModuleRequest(params object[] args);
+    }
+}