Make DataFormatOptionsDialog engine-agnostic

CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/Dialogs/DataFormatOptionsDialog.cs

@@ -244,10 +244,4 @@ namespace UniversalEditor.UserInterface.WindowsForms.Dialogs
 			return DialogResult.None;
 		}
 	}
-
-	public enum DataFormatOptionsDialogType
-	{
-		Import,
-		Export
-	}
 }

CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs

@@ -1276,7 +1276,10 @@ namespace UniversalEditor.UserInterface.WindowsForms
 			*/
 
 			DataFormat df = dfr.Create();
-			DataFormatOptionsDialog.ShowDialog(ref df, DataFormatOptionsDialogType.Export);
+			if (!Engine.CurrentEngine.ShowDataFormatOptionsDialog(ref df, DataFormatOptionsDialogType.Export))
+			{
+				return false;
+			}
 			
 			#region Save Code
 			NotifySaving(doc);

CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/Pages/EditorPage.cs

@@ -364,7 +364,7 @@ namespace UniversalEditor.UserInterface.WindowsForms.Pages
                         }
                         else
                         {
-                            if (Dialogs.DataFormatOptionsDialog.ShowDialog(ref fmt, Dialogs.DataFormatOptionsDialogType.Import) == DialogResult.Cancel) return;
+                            if (!Engine.CurrentEngine.ShowDataFormatOptionsDialog(ref fmt, DataFormatOptionsDialogType.Import)) return;
 
 							Document document = new UniversalEditor.Document(objm, fmt, new FileAccessor(FileName));
 							document.InputAccessor.Open();

CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/WindowsFormsEngine.cs

@@ -401,5 +401,14 @@ namespace UniversalEditor.UserInterface.WindowsForms
 		{
 			Application.Exit();
 		}
+
+		public override bool ShowDataFormatOptionsDialog(ref DataFormat df, DataFormatOptionsDialogType type)
+		{
+			if (DataFormatOptionsDialog.ShowDialog(ref df, type) == DialogResult.OK)
+			{
+				return true;
+			}
+			return false;
+		}
 	}
 }

CSharp/Libraries/UniversalEditor.UserInterface/DataFormatOptionsDialogType.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace UniversalEditor.UserInterface
+{
+	public enum DataFormatOptionsDialogType
+	{
+		Import,
+		Export
+	}
+}

CSharp/Libraries/UniversalEditor.UserInterface/Engine.cs

@@ -988,5 +988,7 @@ namespace UniversalEditor.UserInterface
 		protected virtual void StopApplicationInternal()
 		{
 		}
+
+		public abstract bool ShowDataFormatOptionsDialog(ref DataFormat df, DataFormatOptionsDialogType dataFormatOptionsDialogType);
 	}
 }

CSharp/Libraries/UniversalEditor.UserInterface/UniversalEditor.UserInterface.csproj

@@ -59,6 +59,7 @@
     <Compile Include="CommandShortcutKey.cs" />
     <Compile Include="Common\Reflection.cs" />
     <Compile Include="ConfigurationManager.cs" />
+    <Compile Include="DataFormatOptionsDialogType.cs" />
     <Compile Include="Engine.cs" />
     <Compile Include="HostApplication.cs" />
     <Compile Include="HostApplicationMessage.cs" />