Fix DestroyPlatformWindow crashing when called in Shutdown of the application

Juliet/src/Core/HAL/Display/Display.cpp

@@ -53,7 +53,10 @@ namespace Juliet
         }
 
         // Destroy all Windows that are still alive
-        DestroyPlatformWindow(CurrentDisplayDevice->MainWindow);
+        if (CurrentDisplayDevice->MainWindow)
+        {
+            DestroyPlatformWindow(CurrentDisplayDevice->MainWindow);
+        }
 
         CurrentDisplayDevice->Shutdown(CurrentDisplayDevice);
         // Free anything that was freed by the shutdown and then free the display
@@ -89,11 +92,14 @@ namespace Juliet
 
     void DestroyPlatformWindow(NonNullPtr<Window> window)
     {
+        Assert(CurrentDisplayDevice->MainWindow == window.Get());
+
         HideWindow(window);
 
         CurrentDisplayDevice->DestroyPlatformWindow(CurrentDisplayDevice, window);
 
         Free(window.Get());
+        CurrentDisplayDevice->MainWindow = nullptr;
     }
 
     void ShowWindow(NonNullPtr<Window> window)

JulietApp/Editor/EditorMain_win32.cpp

@@ -31,12 +31,14 @@ namespace Juliet
     {
         Log(LogLevel::Message, LogCategory::Editor, "Shutdown Editor Application...");
 
-        // DestroyOSWindow(MainWindow);
+        if (MainWindow )
+        {
+            DestroyPlatformWindow(MainWindow);
+        }
     }
 
     void Win32EditorApplication::Update()
     {
-        // UpdateOSWindowState(MainWindow);
         SystemEvent evt;
         while (GetEvent(evt))
         {
@@ -47,20 +49,6 @@ namespace Juliet
                     Running = false;
                 }
             }
-
-            if (evt.Type == EventType::Key_Down)
-            {
-                if (evt.Data.Keyboard.Key.ScanCode == ScanCode::Escape)
-                {
-                    Running = false;
-                }
-            }
-
-            // Other way to do it
-            if (IsKeyDown(ScanCode::Q))
-            {
-                Running = false;
-            }
         }
     }