mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Toolbox/ActivityTemplateFactoryExtension.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4
   5 namespace System.Activities.Presentation
   6 {
   7     static class ActivityTemplateFactoryExtension
   8     {
   9         public static bool IsActivityTemplateFactory(this Type type)
  10         {
  11             return type.GetInterface(typeof(IActivityTemplateFactory).FullName) != null ||
  12                    type.GetInterface(typeof(IActivityTemplateFactory<>).FullName) != null;
  13         }
  14
  15         public static bool TryGetActivityTemplateFactory(this Type type, out Type argumentType)
  16         {
  17             if (type.GetInterface(typeof(IActivityTemplateFactory).FullName) != null)
  18             {
  19                 // Hard coding here, because we don't want to create instance before dropped. Suggestion is to use IActivityTemplateFactory<> instead.
  20                 argumentType = typeof(Activity);
  21                 return true;
  22             }
  23
  24             Type activityFactoryInterfaceType = type.GetInterface(typeof(IActivityTemplateFactory<>).FullName);
  25             if (activityFactoryInterfaceType != null)
  26             {
  27                 argumentType = activityFactoryInterfaceType.GetGenericArguments()[0];
  28                 return true;
  29             }
  30
  31             argumentType = null;
  32             return false;
  33         }
  34     }
  35 }