Adding reference source for part of Workflow Foundation

[mono.git] / mcs / class / referencesource / System.Activities.Presentation / System.Activities.Presentation / System / Activities / Presentation / Converters / OutlineViewTextConverter.cs

diff --git a/mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Converters/OutlineViewTextConverter.cs b/mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Converters/OutlineViewTextConverter.cs
new file mode 100644 (file)
index 0000000..ae1b31f
--- /dev/null
+++ b/mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Converters/OutlineViewTextConverter.cs
@@ -0,0 +1,53 @@
+//----------------------------------------------------------------
+// <copyright company="Microsoft Corporation">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//----------------------------------------------------------------
+
+namespace System.Activities.Presentation.Converters
+{
+    using System.Activities.Presentation.Model;
+    using System.Globalization;
+    using System.Runtime;
+    using System.Windows;
+    using System.Windows.Data;
+    using Microsoft.Activities.Presentation;
+
+    internal class OutlineViewTextConverter : IMultiValueConverter
+    {
+        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
+        {
+            string displayName = string.Empty;
+            if (values[0] != DependencyProperty.UnsetValue)
+            {
+                displayName = values[0] as string;
+            }
+
+            if (string.IsNullOrEmpty(displayName) && values[1] != DependencyProperty.UnsetValue)
+            {
+                ModelItem modelItem = values[1] as ModelItem;
+                if (modelItem != null)
+                {
+                    ModelProperty nameProperty = modelItem.Properties["Name"];
+                    if (nameProperty != null && nameProperty.Value != null)
+                    {
+                        displayName = nameProperty.Value.GetCurrentValue() as string;
+                    }
+
+                    if (string.IsNullOrEmpty(displayName))
+                    {
+                        Fx.Assert(modelItem.ItemType != null && modelItem.ItemType.Name != null, "ModelItem should always have a name");
+                        displayName = TypeNameHelper.GetDisplayName(modelItem.ItemType, false);
+                    }
+                }
+            }
+
+            return displayName;
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            throw FxTrace.Exception.AsError(new InvalidOperationException());
+        }
+    }
+}