1 files changed, 166 insertions, 0 deletions
diff --git a/source/ShiftUI/Internal/PropertyManager.cs b/source/ShiftUI/Internal/PropertyManager.cs
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+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Copyright (c) 2005 Novell, Inc.
+//
+// Authors:
+//	Jackson Harper	[email protected]
+
+using System;
+using System.Collections;
+using System.ComponentModel;
+
+namespace ShiftUI {
+
+	public class PropertyManager : BindingManagerBase {
+
+		internal string property_name;
+		private PropertyDescriptor prop_desc;
+		private object data_source;
+		private EventDescriptor changed_event;
+		private EventHandler property_value_changed_handler;
+
+		public PropertyManager() {
+		}
+
+		internal PropertyManager (object data_source)
+		{
+			SetDataSource (data_source);
+		}
+
+		internal PropertyManager (object data_source, string property_name)
+		{
+			this.property_name = property_name;
+
+			SetDataSource (data_source);
+		}
+
+		internal void SetDataSource (object new_data_source)
+		{
+			if (changed_event != null)
+				changed_event.RemoveEventHandler (data_source, property_value_changed_handler);
+
+			data_source = new_data_source;
+
+			if (property_name != null) {
+				prop_desc = TypeDescriptor.GetProperties (data_source).Find (property_name, true);
+
+				if (prop_desc == null)
+					return;
+
+				changed_event = TypeDescriptor.GetEvents (data_source).Find (property_name + "Changed", false);
+				if (changed_event != null) {
+					property_value_changed_handler = new EventHandler (PropertyValueChanged);
+					changed_event.AddEventHandler (data_source, property_value_changed_handler);
+				}
+			}
+		}
+
+		void PropertyValueChanged (object sender, EventArgs args)
+		{
+			OnCurrentChanged (args);
+		}
+
+		public override object Current {
+			get { return prop_desc == null ? data_source : prop_desc.GetValue (data_source); }
+		}
+
+		public override int Position {
+			get { return 0; }
+			set { /* Doesn't do anything on MS" */ }
+		}
+
+		public override int Count {
+			get { return 1; }
+		}
+
+		public override void AddNew ()
+		{
+			throw new NotSupportedException ("AddNew is not supported for property to property binding");
+		}
+
+		public override void CancelCurrentEdit ()
+		{
+			IEditableObject editable = data_source as IEditableObject;
+			if (editable == null)
+				return;
+			editable.CancelEdit ();
+
+			PushData ();
+		}
+
+		public override void EndCurrentEdit ()
+		{
+			PullData ();
+
+			IEditableObject editable = data_source as IEditableObject;
+			if (editable == null)
+				return;
+			editable.EndEdit ();
+		}
+
+		// Hide this method from the 2.0 public API
+		internal override PropertyDescriptorCollection GetItemPropertiesInternal ()
+		{
+			return TypeDescriptor.GetProperties (data_source);
+		}
+
+		public override void RemoveAt (int index)
+		{
+			throw new NotSupportedException ("RemoveAt is not supported for property to property binding");
+		}
+
+		public override void ResumeBinding ()
+		{
+		}
+
+		public override void SuspendBinding ()
+		{
+		}
+
+                internal override bool IsSuspended {
+                        get { return data_source == null; }
+                }
+
+		protected internal override string GetListName (ArrayList listAccessors)
+		{
+			return String.Empty;
+		}
+
+		[MonoTODO ("Stub, does nothing")]
+		protected override void UpdateIsBinding ()
+		{
+		}
+
+		protected internal override void OnCurrentChanged (EventArgs ea)
+		{
+			PushData ();
+
+			if (onCurrentChangedHandler != null) {
+				onCurrentChangedHandler (this, ea);
+			}
+		}
+
+		protected override void OnCurrentItemChanged (EventArgs ea)
+		{
+			throw new NotImplementedException ();
+		}
+	}
+}
+