mono/mcs/class/Managed.Windows.Forms/System.Windows.Forms.Design/EventsTab.cs

// 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) 2004 Novell, Inc.
//
// Authors:
//	Dennis Hayes ([email protected])
//  Rafael Teixeira ([email protected])
//

// NOT COMPLETE

using System;
using System.ComponentModel;
using System.ComponentModel.Design;

namespace System.Windows.Forms.Design
{
	public class EventsTab : PropertyTab
	{
		[MonoTODO]
		private EventsTab()
		{
		}
		
		private IServiceProvider serviceProvider;

		[MonoTODO]
		public EventsTab(IServiceProvider serviceProvider)
		{
			this.serviceProvider = serviceProvider;
		}

		[MonoTODO("What value should we return?")]
		public override string HelpKeyword 
		{
			get {
				return TabName;				
			}
		}
		
		[MonoTODO("Localization")]
		public override string TabName 
		{
			get {
				return "Events";
			}
		}
		
		[MonoTODO("Test")]
		public override PropertyDescriptorCollection GetProperties(
			ITypeDescriptorContext context,
			object component,
			Attribute[] attributes)
		{
			IEventBindingService eventPropertySvc = null;
			EventDescriptorCollection events;
			
			if (serviceProvider != null)
				eventPropertySvc = (IEventBindingService)
					serviceProvider.GetService(typeof(IEventBindingService));

			if (eventPropertySvc == null)			 
				return new PropertyDescriptorCollection(null);

			if (attributes != null)			
				events = TypeDescriptor.GetEvents(component, attributes);
			else
				events = TypeDescriptor.GetEvents(component);
	 
			// Return event properties for the event descriptors.
			return eventPropertySvc.GetEventProperties(events);
		}
		
		public override PropertyDescriptorCollection GetProperties(object component, Attribute[] attributes)
		{
			return this.GetProperties(null, component, attributes);
		}
		
		[MonoTODO]
		public override bool CanExtend(object component)
		{
			return false;
		}
		
		[MonoTODO("Test")]
		public override PropertyDescriptor GetDefaultProperty(object component)
		{
			object[] attributes = component.GetType().GetCustomAttributes(typeof(DefaultEventAttribute), true);
			if (attributes.Length > 0) {
				DefaultEventAttribute defaultEvent = attributes[0] as DefaultEventAttribute;
				if (defaultEvent != null && serviceProvider != null) {
					IEventBindingService eventPropertySvc = (IEventBindingService)
						serviceProvider.GetService(typeof(IEventBindingService));
	
					if (eventPropertySvc == null)
						foreach (EventDescriptor ed in TypeDescriptor.GetEvents(component))
							if (ed.Name == defaultEvent.Name)
								return eventPropertySvc.GetEventProperty(ed);
				}
			}	
			return null;
		}

	}
}